Floating shooting device

... 一种漂浮拍摄装置，包括：漂浮组件，用于提供浮力；供电组件，用于为各用电组件提供电能；潜水拍摄组件，设置于或者悬挂于漂浮组件下方，用于拍摄水下影像；动力组件，用于驱动漂浮组件移动；以及控制系统，用于控制各用电组件的工作。依据本实用新型的漂浮拍摄装置，由于拍摄组件漂浮在水体中，因此可采用俯视的方式进行拍摄，视野广阔，且配备有供电组件和动力组件，使得拍摄装置能够跟踪感兴趣的物体，节省使用成本，扩大适用范围。 ...

RIGID CONNECTING DEVICE FOR CONNECTING UPPER AND LOWER INTERNAL SURFACES OF OIL TANK AND PRODUCTION METHOD FOR OIL TANK

A rigid connecting device for connecting upper and lower internal surfaces of an oil tank, comprising a connecting rod (1). The upper and lower sides of the connecting rod (1) are both provided with a connecting end face (2). A feeding hole (3) is arranged on the connecting end face (2). The outside of the rigid connecting device is coated with high-density polyethylene. The rigid connecting device is reasonable and compact in structural design, has high freedom in appearance design, and can meet the performance requirement of high pressure resistance of the oil tank. The connection between the upper and lower surfaces is achieved by the connecting rod; the rigid connecting device has more effective space when used in local regions with poor rigidity in the fuel oil tank. The part in contact with the fuel oil can well meet the requirements of strength and corrosion resistance.

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Microorganism cultivation device and method for biological detection

The invention relates to the related technical field of microbiological detection, in particular to a microbiological cultivation device for biological detection, which comprises a cultivation box, a supporting mechanism and a clamping mechanism, and is characterized in that a cultivation chamber is formed in the cultivation box; the supporting mechanism is arranged in the cultivation chamber and comprises a supporting plate used for supporting the cultivation bottles. The clamping mechanism is arranged on the supporting plate, the clamping mechanism is used for clamping a cultivation bottle on the supporting plate, the clamping mechanism comprises two clamping plates and sliding blocks, the two clamping plates are arranged at an interval, the ends, away from each other, of the two clamping plates are connected with the sliding blocks, and the two sliding blocks are connected with sliding grooves formed in the supporting plate in a sliding mode; by arranging the clamping mechanism and the ...

Device for generating water anions through vibration

A device for generating water anions through vibration comprises a vibration mechanism and a water storage container, the vibration mechanism comprises a vibration piece and a power module, and the vibration piece is electrically connected to the power module. Wherein the vibrating reed is in contact with water in the water storage container so as to vibrate when the voltage of the power supply module is increased, so that the water in contact with the vibrating reed vibrates and is in high-frequency friction with the vibrating reed so as to generate water anions; therefore, the water anions beneficial to human health are naturally generated in a mode of simulating waterfall to impact the ground to generate the water anions.

THREE-DIMENSIONAL SPACE DUST CONTROL AND REMOVAL METHOD USED FOR DUST PRODUCED DURING BRACKET MOTION OF FULLY MECHANIZED MINING FACE

A three-dimensional space dust control and removal method for dust produced during bracket motion of a fully mechanized mining face. Different dust-proof measures are taken for upper, middle and lower spaces of the fully mechanized mining face; an air curtain machine (3) or different kinds of nozzles are utilized to form a gas-water double-curtain closed space or a single fog-filed closed space; a sensor transmits a signal to a central processing system, thereby conducting fully-automatic spraying dust-reduction in the bracket moving process of column descending, bracket advancing, column ascending and the like, and high-concentration dust is concentrated in the closed space to be treated in a concentrated mode, or the high-concentration dust is blocked outside of the closed space. A wireless transmission system is employed using closed dust-isolation and a spraying dust-reduction mode. A remote control device is utilized to transmit a radio signal, and a signal processor receives the signal ...

Road surface detection method based on region division, computer equipment and storage medium

The region division-based road surface detection method comprises the steps of driving a detection vehicle to walk on a to-be-detected road surface, and shooting the road surface through a foresight camera in a driving process of the detection vehicle so as to obtain complete image information of the to-be-detected road surface; according to the obtained image information, rasterizing is carried out on a map of a to-be-detected road surface, and the size of one grid can be completely shot by a downward-looking camera at the bottom of a detected vehicle; marking all the road surface grids as an unmarked state after grid division; navigation: identifying the pavement image to obtain gray information in the image, judging whether damage occurs or not according to the gray information, and when the damage occurs, setting the state mark of the pavement grid as a damaged state; when the road surface grid is not damaged, the state of the road surface grid is set to be a flat state; according to ...

Ultra-thin flexible glass online conveying system

The invention provides an ultra-thin flexible glass online conveying system which comprises a pair of bases (1) and supporting frames (2) connected with the bases (1), a power motor (3) and a control panel (8) are arranged on one supporting frame (2), a power roller (5) and an auxiliary roller (6) are further arranged on the two supporting frames respectively, a conveying belt (9) is arranged on the power roller and the auxiliary roller in a sleeving mode, an air pump (10) is arranged on the conveying belt, and the air pump (10) is arranged on the air pump (10). A supporting grid (12) is further arranged on the surface of the conveying belt, and an air channel (11) and air holes (13) are formed in the conveying belt. When ultra-thin flexible glass is conveyed on line, the operation method is simple, sliding of the glass on the conveying belt during cutting, cleaning and other procedures can be reduced by adopting the negative pressure adsorption principle, the scratch rate of the glass ...

METHOD FOR AREA-BASED COAL ROCK WATER INJECTION SEEPAGE-DAMAGE-STRESS COUPLING VALUE SIMULATION

Disclosed is a method for area-based coal rock water injection seepage-damage-stress coupling value simulation, comprising: establishing a coal seam model according to a geological survey result; performing area division and respectively simulating coal rock water injection seepage of a non-mining induced disturbance area and a mining induced disturbance area; in the non-mining induced disturbance area, performing programming to compare tension-shear torque values of meshes to determine whether deformation or even fracture occurs to coal rock under the action of water pressure stress; simultaneously simulating a coal fracture process using a meshfree method and simulating a seepage process using a boundary element method, wherein the advantages of the two simulation methods are combined on a micro scale; and in the mining induced disturbance area, respectively performing simulation using two mathematic models, i.e., the N-S equation and the Darcy's law, to accurately simulate coal damage ...

High-pressure steam sterilization device

The invention provides a high-pressure steam sterilization device, and relates to the field of medical sterilization devices, the high-pressure steam sterilization device comprises a high-pressure sterilization cabinet body, a sealing cabinet door, a sterilization auxiliary mechanism, a placement auxiliary mechanism, a support moving mechanism, an automatic opening and closing mechanism and a safety false opening prevention mechanism; the sealing cabinet door is hinged to the right end of the front part of the high-pressure sterilization cabinet body; the sterilization auxiliary mechanism is arranged in the high-pressure sterilization cabinet body; the placement auxiliary mechanism is arranged at the lower end in the high-pressure sterilization cabinet body; the supporting and moving mechanisms are respectively arranged below the high-pressure sterilization cabinet body and the control cabinet body; the automatic opening and closing mechanism is arranged in the high-pressure sterilization ...

RETRACTING APPARATUS AND FEEDING MECHANISM PROVIDED WITH SAME

A retracting apparatus (100) comprising: a main shaft (10), a support plate (20), and multiple spring washers (30). The main shaft is movable in the axial direction thereof and is provided with a first extremity. The support plate is in a fixed position and the first extremity of the main shaft runs through the support plate. The multiple spring washers are sleeved on the first extremity of the main shaft and stacked together in a same direction; also, the multiple spring washers are pressed tight by a predetermined preload between the main shaft and the support plate. The main shaft is constructed as switchable between a first position and a second position and movable by a predetermined distance relative to the support plate in the axial direction of the main shaft while switching; at the first position, the main shaft is farthest away from the support part; and, at the second position, the main shaft is closest to the support plate. Also comprised is a feeding mechanism (1000). The retracting ...

Concrete product strength detection equipment

The invention discloses concrete product strength detection equipment which comprises a detection table, a micrometer indentation instrument and a polishing device and further comprises a conversion positioning assembly and an adjusting mechanism used for changing the position of the conversion positioning assembly, and the adjusting mechanism is erected on the detection table; the conversion positioning assembly comprises a disc capable of rotating in the vertical direction and a driving control mechanism used for driving the disc to rotate, the micron indentation instrument and the grinding device are evenly arranged on the circumferential side of the disc, and positioning mechanisms matched with the driving control mechanism are arranged on the micron indentation instrument and the grinding device correspondingly; and the positioning mechanism is used for driving the control mechanism to judge the positions of the micron indentation instrument and the grinding device. When the concrete ...

DEVICE FOR CHANGING ROTATION DIRECTION OF MICROTOME

Disclosed is a device (100) for changing the rotation direction of a microtome, the device comprising: a first shaft (110), the first shaft (110) being arranged at a first fixed position; a first gear (112), the first gear (112) being non-rotatably mounted to the first shaft (110); a second shaft (120), the second shaft (120) being capable of moving in a first direction; a second gear (122), the second gear (122) being non-rotatably mounted to the second shaft (120); a third shaft (130), the third shaft (130) being capable of moving in a second direction; a third gear (132), the third gear (132) being non-rotatably mounted to the third shaft (130); and a first connecting member (140), the first connecting member (140) connecting the second shaft (120) with the third shaft (130) so that the second gear (122) is normally engaged with the third gear (132), wherein the second gear (122) can be directly or indirectly driven by the first gear (112). Thus, the device (100) for changing a rotation ...

TOTALLY ENCLOSED LEAD FRAME AND PACKAGING STRUCTURE THEREOF

Disclosed are a totally enclosed lead frame and a packaging structure thereof. The lead frame comprises a wire frame (6), wherein the wire frame (6) comprises an upper side bar (61) and a lower side bar (62); multiple vertical bars (63) are provided between the upper side bar (61) and the lower side bar (62); a column of lead frame units (7) are provided between two adjacent vertical bars (63); and each of the lead frame units (7) comprises a middle bar (4), the middle bar (4) is provided with a middle pin (2) and side pins (3), the middle pin (2) is provided with a base island (1), the periphery of the base island (1) is provided with an enclosed slotted area (8), and the base island (1) is connected to the wire frame (6) by means of one or more connecting bars (9) on the left and right sides. The totally enclosed lead frame and the packaging structure thereof are free of presser feet, flashing or tilting during the process, enable the process to be simple and controllable, and can solve ...

ARRAY SUBSTRATE AND PREPARATION METHOD THEREFOR, AND DISPLAY DEVICE

An array substrate (100) and a preparation method therefor, and a display device. The array substrate (100) comprises: a substrate base (101); a first conductive pattern (102) on the substrate base (101); an insulating layer (103) at the side of the first conductive pattern (102) distant from the substrate base (101), vias (1031) being formed in the insulating layer (103); a second conductive pattern (105) at the side of the insulating layer (103) distant from the substrate base (101), the second conductive pattern (105) being electrically connected to the first conductive pattern (102) at the vias (1031), and protective patterns (106) at the sides of connecting electrodes (104) distant from the substrate base (101), wherein the orthographic projections of the protective patterns (106) on the substrate base (101) at least partially overlap the orthographic projections of the vias (1031) on the substrate base (101). The protective patterns (106) can prevent damage, such as corrosion, to ...

Water anion generating device and water anion spraying structure thereof

The invention relates to a water anion generating device and a water anion spraying structure thereof, the water anion generating device comprises a water storage container and the water anion spraying structure, the water anion spraying structure comprises a support, a friction buffer device, a water anion spraying device, an insulating layer and a conducting layer, and the support is provided with a containing channel; the friction buffering device is arranged in the containing channel and has water absorption and elasticity, the water anion spraying device is used for vibrating and rubbing water in the friction buffering device, and the conductive layer is arranged on the outer surfaces of the support and the insulating layer and used for eliminating static electricity. Electrified water drops generated by the water negative ion spraying device are released to the outside of the water negative ion spraying structure through the through holes of the insulating layer and the channels of ...

POMALIDOMIDE CRYSTALLIZATION TECHNOLOGY

A pomalidomide crystallization technology. The crystallization technology comprises: mixing pomalidomide with mixed solvent A for dissolution, and concentrating an obtained clear solution to obtain pomalidomide crystals. The used crystallization technology has a simple operation, low costs, is safe, efficient, and environmentally friendly, and facilitates industrial production. In addition, the prepared products have a single crystal form and high yield, are stable, and meet the ICH residue limit requirement.

ELECTRIC ARC-FREE ELECTRICAL CONNECTION OR POWER OFF METHOD

An electric arc-free electrical connection or power off method, relating to the field of methods for preventing an electric arc in an electrical connection structure. Pre-boosting is performed on a second connection end (2) before a first connection end (1) and the second connection end are electrically connected, to enable the voltage difference between the two connection ends to be not greater than ΔU; or the voltage of the second connection end (2) is gradually reduced after the two connection ends are disconnected, and each voltage reduction is not greater than the ΔU;ΔU cannot generate an electric arc or generates an electric arc lower than a set length in an electrical connection or power off medium environment. Different from a conventional sealing or electric arc isolation method, this method can physically prevent an electric arc, and may achieve an electric arc-free state. By converting transient change of a voltage on a secondary side of a switch to linear or gradient change ...

BLIND HOLE OPENING PROCESS OF MULTILAYER HDI CIRCUIT BOARD

Provided is a laser blind hole opening process of multilayer high density interconnection (HDI) circuit board, comprising fabricating a target hole pattern on a underlying PAD layer of a laser blind hole, laminating a resin-coated copper foil, shooting the target hole using X ray, aligning and exposing by using an automatic exposure machine, developing and opening through etching. Accurate alignment is achieved by using four target holes at the corners that are at the same plane of the underlying PAD layer of the laser blind hole and the target hole is shoot by using an accurate X-ray shooting machine, so that the repeated use of external guide hole and errors in mechanical drilling are avoided, and accurate opening of laser blind hole is achieved. The process is simple and has high efficiency.

Closed coring device suitable for inclined shaft section and well drilling coring process

The invention provides a closed coring device suitable for an inclined shaft section and a well drilling coring process. The closed coring device comprises an upper connector, a difference value short section, an outer barrel, a suspension mechanism, a rotary connector assembly, an inner barrel, a rock core grabbing mechanism, an upper sealing piston, a lower sealing piston and a coring drill bit. The upper connector, the difference short section, the outer barrel and the coring drill bit are connected to form an outer barrel string, the rotary connector assembly, the inner barrel and the rock core grabbing mechanism are arranged in the outer barrel string and connected to form an inner barrel string, the inner barrel string is hung on the difference short section through the hanging mechanism, the hanging mechanism can achieve double-barrel single action, and the upper sealing piston can achieve drilling circulation and inner barrel pressure relief. And the lower sealing piston is fixed ...

Ventilation device for mining

The ventilation device for mining comprises a pipeline body, the pipeline body comprises an outer pipeline and an inner pipeline, and the outer pipeline is arranged on the outer wall of the inner pipeline in a sliding and sleeving mode; the filtering mechanism comprises a first filtering plate and a second filtering plate which are sequentially arranged in the ventilation direction, the first filtering plate and the second filtering plate are each of a semicircular structure, and the outer diameter of the second filtering plate is equal to the inner diameter of the first filtering plate; the number of the dismounting mechanisms is two, and the first filter plate and the second filter plate are detachably connected into the inner pipeline through the dismounting mechanisms; the rotating mechanism is arranged on the outer wall of the outer pipeline, and the output end of the rotating mechanism penetrates through the outer pipeline and is in transmission fit with the dismounting mechanism ...

ROTATIONAL SPEED CONTROL DEVICE FOR MOTOR, MOTOR, AND FOOD PROCESSING APPARATUS

A rotational speed control device for a motor, a motor, and a food processing apparatus. The rotational speed control device comprises: a rotational speed feedback circuit (10) and a rotational speed control loop (20). The rotational speed feedback circuit comprises a rotational speed sensing unit (11) and a resistance adjusting unit (12). The rotational speed sensing unit is configured to sense a current rotational speed of a motor (M) and output a detected rotational speed signal. The resistance adjusting unit is configured to adjust the total resistance of a resistor unit (21) in the rotational speed control loop according to the detected rotational speed signal. The rotational speed control loop comprises the resistor unit, a first capacitor (C1), a first controllable switch (K1), and a second controllable switch (K2). When the motor is powered on, a power supply (AC) charges the first capacitor by means of the motor and the resistor unit, and the first controllable switch and the second ...

MOISTENING AGENT FOR COAL MINE SPRAY AND DUST REDUCTION AND PREPARATION METHOD

A moistening agent for coal mine spray and dust reduction and a preparation method. The moistening agent comprises: 3%-5% of lignosulfonate, 3%-5% of vinylacetate, 3%-5% of 2-acrylamide-2-methyl propanesulfonic acid, 0.05%-0.1% of an initiator, 0.02%-0.04% of a crosslinking agent, 0.3%-0.6% of an antifreezing agent, and 0.2%-0.4% of a corrosion inhibitor, with the balance being water. Sodium lignosulphonate is used as a matrix to perform polymerization reaction with vinyl acetate and 2-acrylamide-2-methyl propanesulfonic acid, so that a generated polymer not only keeps degradable performance of sodium lignosulphonate, but also can make a fog drop have moistening and bonding functions.

ARRAY SUBSTRATE AND PREPARATION METHOD THEREOF AND DISPLAY DEVICE

Provided are an array substrate and a preparation method thereof and a display device. The array substrate (01) comprises a base substrate (20) and an insulating layer (10), a gate line (30), a source electrode (40), a drain electrode (50), and a data line (130) disposed on the base substrate (20), wherein the insulating layer (10) comprises a light transmitting portion (12) and a light blocking portion (11), and orthographic projections of the gate line (30), the source electrode (40), the drain electrode (50), and the data line (130) on the base substrate (20) fall within orthographic projections of the light blocking portion (11) on the base substrate (20). By replacing a black matrix with the light blocking portion (11) on the array substrate (01), product structure is simplified and product thickness is reduced, thereby facilitating an increase in aperture ratio.

Antenna oscillator and antenna

The embodiment of the invention provides an antenna oscillator and an antenna. The antenna oscillator comprises a radiant panel. The central area of the radiant panel is provided with a plurality of gaps, and the radiant panel is bent downwards in the peripheral area of each gap to form a supporting part and a hollow hole. Wherein the supporting part plays a role in supporting and connecting. Meanwhile, the gaps are formed in the radiant panel, so that the isolation degree of the oscillators is optimized, and the cross polarization ratio after the oscillators form an array can meet conventional indexes under the condition that boundary conditions are not added.

Reaction equipment of polyester for short-process bottle and method for preparing polyester for bottle

The invention discloses reaction equipment of polyester for a short-process bottle and a method for preparing polyester for a bottle. The reaction equipment comprises a polycondensation reactor, a filter, a granulator, a dryer and a dealdehyding tower which are connected in sequence, wherein the dealdehyding tower is of a vertical tower structure and is provided with a plurality of fluidized bed perforated plates from top to bottom, an airflow inlet air duct is arranged at the bottom of each layer, and an airflow outlet air duct is arranged at the top of each layer; the airflow outlet air duct is sequentially connected with the airflow drying and purifying system and the airflow heating system, and the airflow heating system is connected with the airflow inlet air duct. Compared with the SSP technology, the produced polyester for the bottles has the advantages that the flow is shorter, the product performance is more excellent, the post-processing screw temperature can be reduced, the product ...

A guiding device for first aid information system

... 本实用新型提供种用于急救信息系统的引导装置，引导装置包括手环或者医护人员的胸牌，和感应装置；感应装置内设有：感应器，用于感应运动的物体；发射器，用于发射射频，以激活患者手环或者医护人员的胸牌上的激活器；接收器，接收数据；存储器，用于存储信息中枢发送的数据；处理器，用于处理数据，并发送至显示装置；手环或者医护人员的胸牌设有：激活器，接收射频，并产生感应电流，以激活反馈器；存储器，用于存储唯的识别码；反馈器，在激活后将存储器的识别码进行广播。本实用新型能够快速引导患者和医护人员到达指定的目的地，以节省等待时间。 ...

Loading combustible gas-powder flow explosion characteristic traceability testing device and loading combustible gas-powder flow explosion characteristic traceability testing method

The invention discloses a loading combustible gas-powder flow explosion characteristic traceability testing device which comprises a closed explosion pipeline arranged in an annular mode. The explosion pipeline is provided with a power system used for driving gas or dust in the explosion pipeline to flow, an ignition system used for igniting combustible gas or combustible dust, a gas injection system used for injecting the combustible gas and combustion-supporting gas into the explosion pipeline, and a dust injection system used for injecting dust into the explosion pipeline. The vacuum extraction system is used for evacuating gas in the explosion pipeline so as to facilitate injection of combustible gas and combustion-supporting gas; the data acquisition system is used for measuring and collecting data when explosion occurs in the explosion pipeline; meanwhile, the invention also discloses a traceability test method for the flow explosion characteristic of the loaded combustible gas-powder ...

PCB appearance detection method and device

The invention discloses a PCB appearance detection method, which comprises the following steps: step 100, acquiring a visible light image of a detected PCB, and comparing the difference between the visible light image of the detected PCB and a visible light image of a standard PCB; step 200, acquiring an infrared thermal image of the detected PCB, and comparing the difference between the infrared thermal image of the detected PCB and the infrared thermal image of the standard PCB; and step 300, if the difference in the step 100 and the difference in the step 200 are both within set values, determining that the appearance of the PCB is qualified, otherwise, determining that the appearance of the PCB is unqualified. According to the method, information of fault points of the through hole and the blind hole can be obtained by comparing infrared thermal image differences of normal good products or theoretical values and abnormal products. The invention further discloses a PCB appearance detection ...

Power enterprise safety production management system and method

The invention discloses a power enterprise safety production management system and method, and the system comprises a data collection module, a model construction module, a route recognition module, a behavior recognition module, and an alarm module. The data acquisition module comprises a worker and vehicle information acquisition module, a worker route image acquisition sub-module and a behavior data acquisition sub-module; the model construction module comprises a route safety model construction sub-module and a behavior unsafety model construction sub-module; the route identification module is used for monitoring whether the current worker walking route and the vehicle driving route are illegal or not; the behavior recognition module is used for monitoring whether the behavior of the current worker is illegal; the alarm module comprises a walking route alarm sub-module and a behavior nonstandard alarm sub-module. According to the invention, unsafe behaviors of people can be effectively ...

Long -range switching device of substation equipment power

... 本实用新型公开了种变电站设备电源远程投切装置，包括后台控制主机、与后台控制主机连接的后台通讯装置、分别与后台通讯装置通信连接的若干个现场通讯装置，每个现场通讯装置控制个现场控制装置的通断，所述现场控制装置连接于刀闸操作电源或PT二次输出侧。变电站设备电源远程投切装置能够快速、高效的远程投切设备电源空开，且能够保证可靠动作，能够实现既定目标。 ...

Error evaluation method for online temperature and humidity measurement

The invention discloses an error evaluation method for online measurement of temperature and humidity, and belongs to the field of measurement calibration. The method comprises the following steps: firstly, calculating according to a detected instrument and a standard instrument to obtain an error sequence, performing periodic continuation on the error sequence, and establishing a mean stepwise regression model (MGF-SR model) in combination with a stepwise regression model; secondly, establishing a homogeneity BP neural network model according to the error periodic continuation data, and optimizing the neural network model by using a genetic algorithm (GA) to establish a homogeneity genetic BP neural network; and finally, establishing a linear MGF-SR-GA-BP error evaluation model by taking the minimum predicted error sum of squares as an objective function. Compared with a traditional mean stepwise regression model and a mean BP neural network, the error evaluation method has the advantages ...

Numerical simulation method for multi-element gas explosion propagation characteristics in semi-closed space

The invention provides a numerical simulation method for multi-element gas explosion propagation characteristics in a semi-closed space. The numerical simulation method comprises the following steps: S1, establishing an experimental physical model; s2, carrying out personalized customization grid division based on structural characteristics on the established physical model; s3, setting a model boundary condition and a calculation area; s4, importing a grid file; s5, verifying the independence of the grid; s6, carrying out model optimization; s7, setting a component transportation model, and setting a multi-element explosion reaction heat release equation based on Arrhenius parameters; s8, global monitoring point setting; s9, performing initialization setting; s10, starting simulation; and S11, carrying out post-treatment. According to a real explosion scene, an explosion and propagation physical model of a semi-closed space is established, and premixed detonation spatio-temporal evolution ...

PULSE-FREE SPRAYING MACHINE

A pulse-free spraying machine resolves the issue of pulsing during pumping of a concrete spraying machine. The pulse-free spraying machine comprises a machine frame (1), a pumping mechanism (2), a rotation mechanism (3), a motor, and a hydraulic system (4). The pumping mechanism (2) comprises a hopper (21), a material chamber (22), a concrete feeding mechanism (23), an auxiliary feeding mechanism (24), and a distribution valve (26). The hopper (21) of the pumping mechanism (2) is disposed above the material chamber (22). The distribution valve (26) is disposed inside the material chamber (22). The concrete feeding mechanism (23) and the auxiliary feeding mechanism (24) each comprise hydraulic cylinders (234, 244), concrete pistons (231, 241), and concrete cylinders (233, 243). A material outlet pipe (25) is a three-way pipe fixed at a side surface of the material chamber (22). An auxiliary material outlet pipe (252) of the material outlet pipe (25) is connected to the auxiliary concrete ...

DOUBLE-INJECTION-PUMP CONTINUOUS INJECTION METHOD SUITABLE FOR PARTICLE-IMPACT DRILLING

The present invention relates to the technical field of oil and gas drilling engineering. Disclosed is a double-injection-pump continuous injection method suitable for particle-impact drilling. The method comprises the following steps in sequence: a. a particle adding step: adding particles to a particle mixing hopper (4); b. a particle mixing step: pumping a slurry into the particle mixing hopper (4), thoroughly mixing the slurry with the particles; and c. a particle injection step: continuously injecting the mixture of the slurry and the particles into a well by a double-injection-pump continuous injection apparatus. In the present invention, the double-injection-pump continuous injection apparatus is adopted in the particle injection step, so that the adding and compression strokes are carried out alternately in an orderly manner, thereby ensuring the continuity of injection of the particles into the well, and effectively improving the efficiency of particle-impact drilling.

Safety production supervision and management system

The invention discloses a safety production supervision and management system which comprises a scene model construction module, a behavior analysis and recognition module, a warning module, a wireless communication module and a summary statistics module. The scene model construction module is used for constructing a map model of a power plant unstructured scene; the behavior recognition module is used for analyzing spatio-temporal characteristics and action characteristics of behaviors to obtain behavior types, and transmitting the behavior types and behavior occurrence position information to the warning module through the wireless communication module; the warning module is used for sending an instruction to the warning devices, and the warning device closest to the position information is the warning device receiving the instruction; and the summary statistics module is used for performing summary statistics on the unsafe behavior data and displaying the unsafe behavior data in a chart ...

WATER-PROOF INSULATION CONNECTOR

A water-proof insulation connector includes a gating isolation assembly. A contactor (13) and an isolation cavity are isolated by the gating isolation assembly. The contactor is connected with a device connected by an interface. The gating isolation assembly includes a movable conductor (14) and an elastic insulator (15), and is used to isolate water or other mediums. The elastic insulator can have elastic deformation so as to make the movable conductor move in the range of its elastic deformation to achieve disconnection or connection of the movable conductor and the contactor.

Intratectorial stent for duodenal bulbar, antral stenosis or fistula

The invention discloses a covered stent for duodenal bulbar and antral stenosis or fistula, which comprises a stent body, the stent body comprises a first support anti-falling part, the first support anti-falling part is provided with a first linear section and a first anti-falling section, and the diameter of the first anti-falling section is 1.1-2.0 times of that of the first linear section; the second supporting anti-falling part is provided with a second straight line section and a second anti-falling section, and the diameter of the second anti-falling section is 2.0-4.0 times that of the second straight line section; the first straight line section and the second straight line section are connected together through the connecting section. The end of the first linear section is provided with the first anti-falling section arranged in the intestinal tract, the diameter of the first anti-falling section after opening is larger than that of the first linear section, so that the first ...

PLUG HAVING STEPPED PINS WITH INSULATING SLEEVES

A plug having stepped pins with insulating sleeves (3) comprises a hand-held insulating terminal (1) and stepped pins, wherein the stepped pins comprise conductive pins (2) and insulating sleeves (3). A conductive element is provided in the hand-held insulating terminal (1), and the conductive pins (2) are electrically connected to the conductive element. A portion of the insulating sleeves (3) are disposed inside the hand-held insulating terminal (1), and another portion of the insulating sleeves (3) are disposed on the outer surface of the conductive pins (2). The length of the exposed portions of the conductive pins (2) is greater than or equal to 4 mm, and a step is formed between the bare portion of the conductive pins (2) and the insulating sleeves (3). The benefits are as follows: 1. an insulating layer is formed by the insulating sleeves (3) between the pins and a user, effectively preventing users from suffering electric shock due to contacting exposed portions of the pins during ...

A conductor spacing stick that is used for heat -resisting wire increase -volume of 500kV transmission line to reform transform

... 本实用新型涉及500kV线路改造技术，本实用新型公开了一种用于500kV输电线路耐热导线增容改造的导线间隔棒，其具体包括多个间隔棒和子导线，多个间隔棒分别设置在子导线间，当档距小于1000m时最大平均次档距取66m，档距大于1000m时最大平均次档距取55m。通过在子导线间设置间隔棒，防止分裂导线混线、鞭击和扭转。 ...

Multifunctional floor coating and preparation equipment

The invention discloses a multifunctional terrace coating and preparation equipment, and relates to the technical field of terraces, the multifunctional terrace coating is prepared from multiple components including epoxy resin, a curing agent, a toner, a hydrophobic agent, carbon fibers and an insulating agent, and the preparation process of the multifunctional terrace coating is completed through cooperation of the terrace coating preparation equipment. When the floor coating is stirred, traditional circumferential rotation stirring is not adopted, reciprocating stirring is conducted through the two stirring rods in the radial direction of the charging barrel, and vortex can be avoided in the stirring process; and in the discharging process, the two stirring rods can play a role in blocking the flowing coating and play a role in destroying the vortex with the discharging opening as the center in the mixed coating.

Cooling device, single crystal furnace and single crystal production line

The invention relates to the technical field of single crystal production, in particular to a cooling device, a single crystal furnace and a single crystal production line, the cooling device comprises a driving mechanism, a first cooling mechanism and a second cooling mechanism, the first cooling mechanism is in transmission connection with the driving mechanism, and the second cooling mechanism and the first cooling mechanism are oppositely arranged; the second cooling mechanism is in transmission connection with the driving mechanism, and the driving mechanism can drive the first cooling mechanism and the second cooling mechanism to get close to each other to clamp a cooled object or get away from each other to loosen the cooled object. The driving mechanism drives the first cooling mechanism and the second cooling mechanism to move relatively, contact type cooling of a cooled object can be achieved, the cooling speed is increased, the cooling time is shortened, then the production takt ...

Preparation method of carbon-ceramic brake disc

The invention discloses a preparation method of a carbon-ceramic brake disc, and relates to the technical field of brake materials. According to the carbon-ceramic brake disc, 4-phenyl-3-thiosemicarbazide modified short carbon fibers are used as a mixed slurry component, a brake disc blank is prepared through an injection molding process, and the carbon-ceramic brake disc prepared through carbonization, rough machining and ceramization has good volume density, mechanical property, heat-conducting property and friction resistance; in addition, the 5-tert-butyl-2-methoxyaniline modified resin is adopted and then used for preparing the carbon-ceramic brake disc, so that the carbon-ceramic brake disc has better volume density, mechanical property, heat-conducting property and friction resistance.

Control system for self-climbing hoisting equipment

The invention relates to the technical field of building construction, in particular to a control system for self-climbing hoisting equipment, which comprises a climbing frame, a worktable mounted on the climbing frame, a positioning system mounted on the worktable, and a plurality of measuring parts mounted on the climbing frame and matched with the positioning system. The measuring part is used for measuring the position of the climbing frame and feeding back and controlling climbing of the workbench. The problem that the actual climbing distance does not conform to the preset climbing distance is solved, meanwhile, due to the fact that the multiple measuring pieces are located at different vertical positions, the measuring pieces can reflect the vertical position of the workbench, and when the designated measuring piece detects the positioning system, it is indicated that the workbench reaches the position of the designated measuring piece.

Electrically-driven conveying device, system and method for fishing ring

The invention belongs to the field of medical instruments, and discloses an electrically-driven conveying device, system and method for a fishing ring. The device comprises a catheter which comprises a far-end catheter body and a near-end catheter body, and the far-end catheter body at least comprises a bent section; the driving assembly comprises a lead screw motor and a lead screw nut arranged on the lead screw motor; the bending control assembly comprises a fixing piece, a linkage piece and a traction wire; the fixing piece is fixed to the near end of the near-end pipe body, the linkage piece is arranged on the periphery of the fixing piece in a sleeving mode, and the linkage piece can axially move relative to the fixing piece; one side of the linkage piece is connected with the lead screw nut and is driven by the lead screw motor, and the other side of the linkage piece is connected with the traction wire; the traction wire is arranged in the catheter and extends to the bent section ...

INSULATING SHEATH OF PLUG

Disclosed is an insulating sheath of a plug, comprising a sheet-like sheath main body (1), a contact pin sheath (2) and a contact pin hole (3), wherein the contact pin sheath protrudes from the sheath main body, the contact pin hole is a through-hole allowing the contact pin sheath to communicate with the sheath main body, and the contact pin hole is used for being sheathed on a contact pin of the plug. The insulating sheath can adhere the sheath main body to an insulation part of the plug, and can protect the contact pin at the same time, preventing short circuit by water leakage or electric leakage between contact pins, and also preventing an electric shock caused by a finger touching the contact pin without affecting normal plugging-in and unplugging of the plug. The insulating sheath being able to effectively prevent an electric shock from occurring due to a human body being in contact with a contact pin in the process of plugging-in and unplugging a plug, at the same time, the damage ...

CLAMPING APPARATUS FOR SLICING MACHINE

Disclosed is a clamping apparatus for a slicing machine. The clamping apparatus comprises: a base, the base being provided with a non-threaded hole, and a threaded hole which intersects the non-threaded hole; a clamping piece, the clamping piece being movably arranged in the non-threaded hole, a first end of the clamping piece extending out from the non-threaded hole, a second end of the clamping piece being located within the non-threaded hole, a position on the clamping piece near to the second end being provided with a conical hole, the axis of the conical hole being perpendicular to the movement direction of the clamping piece; a first elastic piece, the first elastic piece being arranged within the non-threaded hole, the clamping piece being supported on the first elastic piece; a core shaft, an outer surface of the core shaft being provided with a thread for threaded matching and movement within the threaded hole, a first end of the core shaft being located within the base and having ...

Anthraquinone hydrogenation catalyst and preparation method thereof

The present invention discloses an anthraquinone hydrogenation catalyst, the catalyst comprises a carrier, active components and assistants, the carrier is a magnesium oxide/alumina carrier, the active components are Pd and Ru, and the assistants are Cu, Mo, Cs and Co; the molar ratio of Pd to Ru in the catalyst is (6-8): (2-3), and the molar ratio of Cu to Mo to Cs to Co is 1: (0.2-0.6): (0.3-0.6): (0.1-0.4). Magnesium oxide is added into a carrier of the catalyst, so that the strength of the carrier is enhanced, the catalyst can tolerate harsh reaction conditions, the service life of the catalyst is prolonged, on the other hand, auxiliary agents Cu, Mo, Cs and Co are added into the catalyst, side reactions in the anthraquinone hydrogenation process are reduced, and the selectivity is improved; in addition, adipic acid is added in the carrier preparation process, so that the catalyst can adapt to the reaction environment of an anthraquinone working solution, and the activity of the catalyst ...

Partition dedusting efficiency test method and test system

The invention relates to the technical field of boiler emission and discloses a method and system for testing partition dust removal efficiency, and the method comprises the steps: measuring the dust removal efficiency of a boiler dust remover through a grid method, obtaining the efficiency eta total of the dust remover, collecting dust in a bin pump through a density box with a preset volume, and obtaining the efficiency eta total of the dust remover; the weight of the density box filled with the dust and the weight of the empty density box are measured respectively, the density rho of the dust in the bin pump meets the condition, the volume of the dust in the bin pump is measured through a detector within the preset time, and the dust volume v of the dust in the bin pump is obtained; the dust removal efficiency eta i of the ith dust removal subarea in the plurality of dust removal subareas is satisfied. According to the test method, the partition dust removal efficiency of the boiler ...

OLED glass with excellent optical performance

The invention discloses OLED (Organic Light Emitting Diode) glass with excellent optical performance, which belongs to the field of glass production and manufacturing and is prepared from the following raw materials in percentage by weight: 57 to 62 percent of SiO2, 20 to 24 percent of Al2O3, 0.5 to 2 percent of B2O3, 2 to 5 percent of BaF2, 8 to 11 percent of SrO, 0.5 to 1.5 percent of BeF2, 0.2 to 0.5 percent of SnO2, 0.3 to 1.0 percent of La2O3, 0.2 to 1.0 percent of P2O5, 0.2 to 0.8 percent of AlF3 and 0.1 to 0.3 percent of AgNO3. The preparation method comprises the following steps: screening silicon dioxide and aluminum oxide, uniformly stirring, uniformly mixing with other raw materials, melting, thinning and forming in a tin bath area, annealing, and cutting and breaking off to obtain a finished product. The glass provided by the invention not only meets the use performance of optical glass, but also has excellent mechanical properties and thermal properties, and has good application ...

Aircraft nose of belt feeder

... 本实用新型公开了种皮带机的机头，包括相对设置的第框架和第二框架，所述第框架和所述第二框架通过多个连接梁可拆卸地连接在起，所述第框架和所述第二框架之间设置有电动滚筒和张紧滚筒，所述张紧滚筒能够沿着皮带机的输送带的设置方向在所述第框架和所述第二框架上滑动，所述电动滚筒和所述张紧滚筒之间设置有导向滚筒，所述导向滚筒和所述电动滚筒之间设置有拖带滚筒，所述张紧滚筒和所述拖带滚筒位于所述导向滚筒的下方。本实用新型提供的皮带机的机头结构简单，便于拆卸和运输，避免运输过程对皮带机的机头的损坏，并且还能对输送带进行张紧调节，消除安全隐患。 ...

A confidence level based on the optimum wind the optimization of the scheduling method

... 本发明涉及新能源发电技术中的调度与控制领域，其公开了种基于最优风电置信度的优化调度方法，它以风功率预测出力及其概率密度分布为基础，建立以风电置信度和机组启停、出力为决策变量，以置信区间内经济调度成本与置信区间外风险成本最小为目标函数的电力系统优化调度模型，并应用改进的粒子群算法进行求解，本发明确定最优的风电置信度、最有风电接纳区间以及最优经济接纳区间下系统机组的出力安排，使得含风电的电力优化调度能够选取经济性和风险性综合最优的风电置信度和风电置信区间，以此实现优化调度经济性和风险性的平衡，为调度部门安排日前出力计划提供了参考，同时实现最佳经济效益。 ...

Low-warpage and high-strength flexible glass as well as surface treatment method and application thereof

The invention relates to low-warpage and high-strength flexible glass as well as a surface treatment method and application thereof. The flexible glass is prepared from the following components in percentage by weight: 55 to 75.5 percent of SiO2, 4.5 to 24.5 percent of Al2O3, 0 to 5.5 percent of B2O3, 0 to 5 percent of Li2O, 0.5 to 15 percent of Na2O, 0.5 to 7 percent of K2O, 0 to 8 percent of MgO, 0 to 8 percent of CaO, 0 to 5.5 percent of ZrO2 and 0.1 to 6.5 percent of RE2O3. Wherein MgO + CaO is less than or equal to 12%; na2O/RO < = 1.2; k2O/RO < = 0.3; rO/Al2O3 is less than or equal to 1.5, and RO is alkaline earth metal oxide. The surface treatment method comprises the following steps: S1, coating the flexible glass prepared from the components; s2, uniformly coating the film material on the surface of flexible glass; and S3, carrying out chemical strengthening on the flexible glass by adopting a one-step method or a two-step method. According to the invention, the stress distribution ...

Master-slave point-to-multipoint communication system and method based on high-speed optical fiber communication

The invention discloses a master-slave mode point-to-multipoint communication system and method based on high-speed optical fiber communication, the system comprises a master node and a plurality of slave nodes, each slave node is in communication connection with the master node, and each slave node is configured with a transceiving working mode, a receiving working mode and a full-duplex communication working mode. And the master node sends the polling broadcast message to the specific slave node to establish communication between the master node and the specific slave node. Time-sharing communication between the master node and each slave node is realized in a polling mode, only the optical fiber splitter/combiner is needed in the middle, the limitation that frequent handshake is needed in original point-to-point high-speed serial communication is broken through, a routing circuit does not need to be additionally arranged, implementation and later maintenance are easy, and the cost is ...

INFRARED ADAPTIVE REMOTE CONTROL METHOD AND APPARATUS

Discloses in the present invention is an infrared adaptive remote control method, comprising: presetting a plurality of different conventional infrared transmission protocols, when presetting infrared transmission protocols for a standard matching remote controller; receiving a first infrared pulse signal sent by a remote controller, and parsing the received first infrared pulse signal sent by the remote controller, so as to obtain encoded data of the first infrared pulse signal; on the basis of the encoded data of the first infrared pulse signal, determining whether the first infrared pulse signal is sent by a non-standard matching remote controller; if it is determined that the first infrared pulse signal is sent by a non-standard matching remote controller, on the basis of the encoded data of the first infrared pulse signal and said plurality of different conventional infrared transmission protocols, executing a remote control command corresponding to the first infrared pulse signal.

METHOD AND SYSTEM FOR MANUFACTURING ELECTROPLATED HIGH-PRECISION THIN CIRCUIT PCB

The invention relates to the technical field of electroplated thin PCB manufacturing. Specifically disclosed are a method and system for manufacturing an electroplated high-precision thin circuit PCB. The system comprises a PCB conveyor and/or a PCB electroplating device. The PCB conveyor specifically comprises a conveying roller and/or a transmission roller. Multiple roller wheels are disposed on the conveying roller. A bearing is deposed on the transmission roller. Standard scales are prepared on two sides of the bearing. The PCB electroplating device specifically comprises a roller vertically disposed in a floating support. The invention reduces the likelihood of jamming, bending, and breaking of electroplated high-precision thin circuit PCBs during a manufacturing process thereof, and increases the yield of the electroplated thin PCBs.

INTELLIGENT POWER CONNECTING METHOD AND INTELLIGENT CONNECTOR

An intelligent power connecting method and an intelligent connector that can be used for achieving intelligent power-on connection in a complex environment, relating to the field of electric connection. The intelligent power connecting method comprises two connecting units (1, 2) to be connected and on-off units (14, 24); the connecting units (1, 2) comprise conductor parts (13, 23), insulation parts (11, 12, 21, 22), and trigger units (17, 27); the on-off units (14, 24) are electrically connected with the trigger units (17, 27); delay units (15, 25) can be connected in series between the on-off units (14, 24) and the trigger units (17, 27). A short circuit or electric leakage caused by instant electric conduction of the connector in a connecting process can be avoided; time is provided due to sealing of the connector, and the problem of insufficient overall seal and closeness properties of the connector in the connecting process is resolved; use and maintenance difficulties are reduced ...

Electrolysis cup

... 一种电解水杯。主要解决现在的电解水杯的电极片的表面往往是平整的，与水的接触面积不大，电解的效率较慢的问题。其特征在于：所述阳极板（2）和/或阴极板（3）上设有至少一个凸起（4）。本实用新型提供一种电解水杯，杯体内设有与电源连接且用于电解水的阳极板和阴极板，阳极板和阴极板对应设置，阳极板和/或阴极板上设有至少一个凸起。通过该凸起来增加电解时与水的接触面积，电解效率更高，使用效果更好。 ...

Visual concrete collapse degree detection equipment and method

The invention provides a visual concrete collapse degree detection device and method, the visual concrete collapse degree detection device comprises collapse degree cylinders which are arranged in a layered manner, concrete is added layer by layer in three times, so that the content of the concrete added each time is consistent, and errors caused by the concrete adding process are avoided. And the inserting and tamping part moves according to an Archimedes line, so that the concrete is inserted, tamped and uniformly mixed from outside to inside. The movement time of the inserting and tamping component on the track is matched with the inserting and tamping frequency, the inserting and tamping position, force and depth of each time are kept consistent, and errors caused by the coagulation degree adding process are avoided. And the camera is used for acquiring three-dimensional coordinate point data, so that the collapse degree and the cohesiveness are accurately measured, and errors caused ...

Paper deviation rectifying mechanism of winding drum printing machine

The invention discloses a paper deviation rectifying mechanism of a winding drum printing machine, and relates to the technical field of printing machines. The device comprises a winding drum printing machine, a base is arranged on one side of the winding drum printing machine, a sliding seat is slidably connected to the top of the base, and printing paper is arranged on one side of the sliding seat; two supporting plates are fixedly connected to one side of the winding drum printing machine, a first roller shaft is fixedly connected between the two supporting plates, and the printing paper bypasses the first roller shaft and enters the winding drum printing machine. A rotating plate rotates to drive a supporting shaft to rise to leave the ground, a sliding seat can be driven to move, so that printing paper is tensioned, a sliding strip can be driven to reciprocate left and right through a connecting rod and a spring, and a moving plate can be driven to move; and the deviation rectifying ...

TOUCH SUBSTRATE AND TOUCH LIQUID CRYSTAL DISPLAY PANEL

A touch substrate (20) and touch liquid crystal display panel (1) are provided. The touch substrate (20) has an effective display area (D). The touch substrate (20) comprises: a base substrate (201); multiple touch electrodes (202) formed on the base substrate (201) and located in the effective display area (D); and a conductive layer (203) formed on the base substrate (201) and located within the effective display area (D). The conductive layer (203) is configured to generate heat when voltage is applied. The conductive layer (203) is electrically insulated from all of the touch electrodes (202), and does not overlap with any of the touch electrodes (202) in a direction perpendicular to that of the base substrate (201). In this way, display and touch performance of the touch liquid crystal display panel (1) at low temperatures is improved, and neither the weight nor the thickness of the touch liquid crystal display panel (1) is increased, providing a touch liquid crystal display panel ...

Continuous relation extraction method and system based on multi-head self-attention mechanism adapter

The invention belongs to the technical field of information extraction, and particularly relates to a continuous relation extraction method and system based on a multi-head self-attention mechanism adapter, a pre-training model is used as a backbone network to construct a continuous relation extraction model, and the pre-training model comprises a plurality of Transform layers for performing encoding and decoding operation on input feature vectors; the adapter is used for learning task knowledge; and taking each task extracted by the continuous relationship as a multi-classification problem, and learning preset task knowledge in the target text through combined training of a plurality of adapters. According to the method, the pre-training model serves as a backbone network to keep all parameters frozen, each task uses a model composed of a plurality of A-Adapters to conduct independent training to learn specific task knowledge, the problem of disastrous forgetting of model training in entity ...

Positioning device for geographic surveying and mapping

The invention relates to the technical field of marine surveying and mapping, in particular to a positioning device for geographic surveying and mapping. Comprising a protection fence, the protection fence is fixedly connected with a light-transmitting shell, the light-transmitting shell is fixedly connected with a fixing ring, the fixing ring is fixedly connected with circumferentially equidistant fixing cylinders, the fixing cylinders are provided with vent holes and communicated with L-shaped communicating pipes, the circumferentially equidistant L-shaped communicating pipes are jointly communicated with a first air bag, the fixing ring is fixedly connected with an annular plate through a fixing rod, and the annular plate is fixedly connected with a second air bag. A first installation block is fixedly connected in the light-transmitting shell, symmetrical solar power generation panels are installed on the first installation block, an energy storage power source is arranged in the first ...

ELECTRICAL CONNECTION METHOD FOR PREVENTING SECONDARY ARC

An electrical connection method for preventing a secondary arc. A gap between two electrical connection ends (1, 2) can be filled with a movable conducting medium (14) when the two electrical connection ends (1, 2) are connected. During connection of the two electrical connection ends (1, 2), electrical contact surfaces of the electrical connection ends (1, 2) are usually bumpy, and many discharging tips are formed. Moreover, a kinetic energy difference is generated between the two electrical connection ends (1, 2) during connection. After initial contact between the electrical contact surfaces, an impulse effect causes the electrical contact surfaces to separate. Therefore, a secondary arc is generated in the gap. The use of the movable conducting medium (14) can buffer the impulse generated by contact between the two electrical connection ends (1, 2), and can guarantee conductivity when the electrical contact surfaces are separated, thereby preventing the secondary arc.

Sealing glass powder with high expansion coefficient as well as preparation method and application thereof

The invention relates to high-expansion-coefficient sealing glass powder as well as a preparation method and application thereof. The sealing glass powder is prepared from a component I and a component II, the component I is prepared from the following oxides in molar percentage: 35 to 60 percent of P2O5, 5 to 20 percent of Al2O3, 10 to 20 percent of B2O3, 0.1 to 10 percent of Bi2O3, 5 to 25 percent of ZnO, 0.1 to 5 percent of TiO2, 0.1 to 10 percent of ZrO2, 0.1 to 5 percent of BaO, 0 to 5 percent of CaO, 0 to 5 percent of MgO, 0 to 5 percent of SrO, 0.1 to 5 percent of Nd2O3, 0 to 5 percent of Y2O3 and 0 to 5 percent of Er2O3; and the component II is a reinforcing filler. The preparation method comprises the following steps: S1, preparing a mixture; step S2, melting is carried out; step S3, crushing and grinding; and step S4, mixing and granulating. The formula of the sealing glass powder is free of alkali metal oxide, so that the water resistance of the sealing glass powder is improved ...

Drop-type high-voltage fuse convenient to install

The invention relates to the field of fuses, in particular to a drop-out type high-voltage fuse convenient to install, which comprises a mounting frame and a drop-out type high-voltage fuse body, and is characterized in that first clamping assemblies are arranged at two ends of the mounting frame; a fixing frame is arranged at the top of the mounting frame, a rotating rod is mounted on the fixing frame, a first driving assembly is mounted on the rotating rod, a connecting box is mounted on the rotating rod, the connecting box is connected with the fixing frame through a limiting assembly, and the top of the connecting box is connected with the drop-type high-voltage fuse body through a mounting mechanism; the mounting mechanism comprises a connecting sliding groove, a two-way screw rod is mounted in the connecting sliding groove, and a second driving assembly is mounted on the two-way screw rod; the two ends of the two-way screw are connected with sliding plates, the sliding plates are ...

Airflow blowing type cotton conveying device

The invention relates to the technical field of cotton conveying, in particular to an airflow blowing type cotton conveying device which is characterized in that an easily-blocked area of a cotton conveying pipeline is defined as an easily-blocked section, the easily-blocked section is provided with blockage detection equipment, and a plurality of air inlet holes capable of being opened and closed one by one are formed in the position, located on the easily-blocked section, of the cotton conveying pipeline in the cotton conveying direction; a temporary pipeline is installed between the first opening and the second opening in a communicating mode, and airflow blown out of the temporary pipeline can enable the area, located between the second opening and the easy-to-block section, of the cotton conveying pipeline to form a negative pressure channel. According to the device, the corresponding temporary pipeline is arranged on the easy-to-block section, a negative pressure area is formed at ...

Bread baking simulation method, device and equipment and readable storage medium

The invention discloses a bread baking simulation method, device and equipment and a readable storage medium. The method comprises the steps that dough making parameters input by a user and set baking parameters are acquired; acquiring an image of the dough, establishing an initial three-dimensional model of the dough according to the image of the dough, and establishing a temperature field changing along with time in the baking oven according to the working parameters of the baking oven in each baking stage; thermal expansion simulation is conducted on the initial three-dimensional model based on the manufacturing parameters and the temperature field, and a bread model is obtained; estimating the taste and color of bread finally formed by the dough according to the making parameters and the baking parameters, and forming a final bread model according to a bread model and the color; and displaying the final bread model and the taste thereof. According to the method, the user can quickly ...

Code change influence analysis method, device and equipment

The embodiment of the invention discloses a code change influence analysis method, device and equipment. Generating a difference code of the source code and the change code; mapping the difference code into a difference intermediate code; determining a propagation path of the difference intermediate code in a system associated with the program; and determining the field associated with the propagation path in the data access layer, and determining the field as the influence field of code change, thereby realizing accurate analysis of the influence field on the system during code iteration, and realizing accurate influence analysis.

Network box separation structure

The invention relates to the technical field of network boxes, and discloses a network box partition structure which comprises a network box, a box door, mounting plates and partition plates, a rotating shaft rod is fixedly arranged at the right end of the box door, the rotating shaft rod is embedded in the right front end of the inner side of the network box, and the mounting plates are welded to the rear ends of the two sides of the network box. Mounting holes are distributed in the mounting plate, the partition plate is arranged in the network box, a sliding adjusting plate is fixedly distributed at the rear end in the network box, the partition plate is slidably connected to the front end of the sliding adjusting plate, and first through holes are distributed in the partition plate, so that a box door can be conveniently and quickly opened and closed to pick and place network equipment; the whole network box is convenient and stable to install, simple in structure, low in cost and wide ...

Composite carbon-carbon crucible containing anti-oxidation coating and preparation method of composite carbon-carbon crucible

The invention discloses a composite carbon-carbon crucible containing an antioxidant coating and a preparation method of the composite carbon-carbon crucible, and relates to the technical field of carbon fiber material forming processes. The carbon/carbon composite material crucible comprises a high-density carbon fiber preform which is obtained by laying non-woven cloth layers and net tire layers according to a layer-by-layer alternate laying method and laying graphite powder layer by layer through composite needling; the carbonized matrix is formed by carbonizing resin liquid, and the resin liquid is distributed on the surface of the high-density carbon fiber preform and in the structure of the high-density carbon fiber preform; the resin liquid at least comprises resin and N-hydroxyethyl ethylenediamine-N, N ', N'-triacetic acid. The density of the prepared carbon-carbon thermal field crucible is effectively improved, and the mechanical property is remarkably enhanced; and meanwhile, ...

SLICE COLLECTION TRAY AND SLICER HAVING SAME

A slice collection tray (100) and a slicer having same, the slice collection tray (100) comprising a body (10) and an antistatic coating (20), the body (10) having an accommodation groove (11) for accommodating slices, the antistatic coating (20) being provided on at least a portion of the surface of the body (10). The slice collection tray (100) is very easy to clean, not only facilitating the daily cleaning of the slice collection tray (100), but also reducing the time taken by the user to clean the slice collection tray (100), improving the user's work efficiency, and avoiding the use of other tools such as a brush or a scraper, thereby reducing the damage to the surface of the slice collection tray (100); and in addition, the slice collection tray (100) has a low manufacturing cost.

COLOR FILM SUBSTRATE, TOUCH DISPLAY SCREEN AND METHOD FOR MANUFACTURING COLOR FILM SUBSTRATE

A color film substrate, a touch display screen and a method for manufacturing the color film substrate improve the display quality of the touch display screen and the touch sensitivity of the touch display screen. The color film substrate comprises an underlay substrate (1), a touch electrode (2), a color filter (3) and a black matrix (4), wherein the touch electrode (2) is located on the outer side of the underlay substrate (1), at least one of the color filter (3) and the black matrix (4) covers the outer side of the touch electrode (2). Since at least one of the color filter (3) and the black matrix (4) covers the outer side of the touch electrode (2), fringe patterns of the touch electrode (2) can be reduced or eliminated from the screen, and thus this solution is capable of effectively improving the display quality of the touch display screen. In addition, as the touch electrode (2) is located on the outer side of the underlay substrate (1), the touch sensitivity is not affected by ...

Multi-stage cultivation device and method for biological detection

The invention discloses a multi-stage cultivation device and method for biological detection, and relates to the technical field of biological detection.The device discloses a cultivation room, a rotating frame is rotationally installed in the cultivation room, a plurality of culture dishes are fixedly installed on the rotating frame, and a waste liquid storage box and a culture solution storage box are fixedly installed at the top of the outer wall of the cultivation room; an infusion pump and an infusion pump are fixedly installed on the top of the inner wall of the culture chamber, a liquid outlet of the infusion pump is communicated with the bottom of the waste liquid storage box, a replacement control module is arranged, the state of the culture solution can be analyzed, when it is detected that the culture solution is a third-level state culture solution, supernate of the third-level state culture solution is replaced in time, and the culture solution is convenient to replace. The ...

High-position endotracheal stent fixing device and fixing teaching method

The invention discloses a high-position endotracheal stent fixing device and a fixing teaching method.The high-position endotracheal stent fixing device comprises a stent traction piece, the stent traction piece is of a T-shaped structure formed by an anti-disengaging section and a fixing section, the anti-disengaging section is arranged on an endotracheal stent in a penetrating mode and located on the inner side of a puncture opening, and the fixing section extends out of the puncture opening outwards; and the fixing unit is used for fixing the outer end part of the fixing section on the skin. The stent traction piece of the T-shaped structure is used for traction of the stent, then the stent traction piece is fixed to the suprasternal fossa through the fixing unit, external fixation of the endotracheal stent is achieved, the fixing effect is good, the situation of up-and-down displacement or slipping after an operation is avoided, and the stent traction piece is particularly suitable ...

DUST ISOLATION AND DUST SETTLING METHOD AND DUST ISOLATION AND DUST SETTLING SYSTEM FOR DUST PRODUCTION DUE TO CUTTING OF COAL MINING MACHINE

Disclosed are a dust isolation and dust settling method and a dust isolation and dust settling system for dust production due to cutting of a coal mining machine on a fully mechanized mining face. Multiple first air/water nozzles (9) are evenly arranged on the body of the coal mining machine (1), a plate trailer is arranged respectively in front of and at the back of the coal mining machine (1), each plate trailer is provided with a dust removal fan (5), multiple second air/water nozzles (18) are evenly arranged on the dust removal fan (5), a transparent high strength material dust guard plate (21) is arranged between an upright post (20) of a hydraulic bracket (25) and the coal mining machine (1), and a water-only spray head (24) is respectively provided at an upper portion and a lower portion of the transparent high strength material dust guard plate (21). The transparent high strength material dust guard plate (21) and the fully mechanized mining face form a closed cutting isolation ...

Gaseous sample pond device with light intensity regulatory function

... 本实用新型公开了一种具有光强调节功能的气体样品池装置，包括可调光阑、光阑座、螺钉组件、样品池及样品池支架，所述可调光阑安装于光阑座上，所述光阑座通过螺钉组件固定在样品池支架上，所述样品池通过螺钉组件固定于样品池支架上，且所述可调光阑与样品池在同一条轴线上。本实用新型装置结构简单，调试方便，长期运行稳定性好，并可以实现通过样品池光信号强度连续可调的功能。 ...

Handheld negative pressure massager

The utility model relates to a handheld negative pressure massager which comprises a shell, a sucker, an air suction assembly and a driving device, the shell is a straight cylindrical component as a whole, and the sucker is arranged at the open end of the shell; the air suction assembly comprises an elastic air bag and an air guide piece, one end of the elastic air bag is open, the air guide piece is of a funnel-shaped structure, the small-opening end of the air guide piece forms an air suction nozzle to be connected with the suction cup opening, and the opening in one end of the elastic air bag is connected with the large-opening end of the air guide piece. The air guide piece, the elastic air bag and the driving device are sequentially arranged in an inner cavity of the shell in the axial direction, and the driving device drives the elastic air bag to expand and extrude. The air guide piece, the elastic air bag and the driving device are sequentially arranged in the inner cavity of the ...

Roller press motor heat dissipation device on cement production line

A roller press motor heat dissipation device on a cement production line disclosed by the present invention comprises a heat dissipation box body and a liquid cooling heat dissipation pipe, a heat dissipation plate is installed in an inner cavity of the heat dissipation box body, a motor body is installed on the heat dissipation plate, the liquid cooling heat dissipation pipe is arranged around the motor body, the left side surface of the heat dissipation box body is provided with an air inlet pipeline, and the air inlet pipeline is communicated with the liquid cooling heat dissipation pipe. A first heat dissipation fan is installed in the air inlet pipeline, and an air filter screen is installed at a pipe opening in the outer side of the air inlet pipeline. The motor body is rapidly cooled through the first cooling fan and the second cooling fan, an air filter screen can filter a large amount of dust in air, a clean environment in the cooling box body is ensured, the cooling efficiency ...

Preparation method of heat-conducting flexible glass substrate

The invention relates to a preparation method of heat-conducting flexible glass. The preparation method is characterized by comprising two aspects of heat-conducting filler addition and chemical thinning, the preparation method comprises the following steps: melting a glass batch at a high temperature, pouring a certain amount of molten glass into a mold, rapidly and uniformly covering the surface of the molten glass with a layer of nano-scale heat-conducting filler, pouring the rest of the molten glass on the surface, and carrying out molding annealing; and preparing the flexible glass filled with the nano-scale heat-conducting filler by using a chemical thinning method. The high-thermal-conductivity flexible glass is prepared by adding the thermal conductive filler and a chemical thinning method, and the thermal conductivity of the flexible glass can be effectively improved.

TOUCH DISPLAY SCREEN AND MANUFACTURING METHOD THEREFOR, AND DISPLAY DEVICE

A touch display screen and a manufacturing method therefor, and a display device, which relate to the technical field of display and can alleviate or avoid the problem of non-uniformity in a display image caused by different transmittances of a touch electrode region and a lead region. The manufacturing method for the touch display screen comprises: forming touch electrodes (20) in an electrode region (200); forming leads (10) connected to the touch electrodes (20) in a lead region (100); separately collecting a first transmittance of the electrode region (200) and a second transmittance of the lead region (100); separately determining the difference between the first transmittance and a preset reference value as well as the difference between the second transmittance and the preset reference value; and setting a light shading area of the electrode region (200) and/or the lead region (100) according to the difference so as to compensate for the first transmittance and/or the second transmittance ...

ARRAY SUBSTRATE, MANUFACTURING METHOD THEREOF, AND DISPLAY PANEL

An array substrate, a manufacturing method thereof, and a display panel are provided. The manufacturing method comprises: providing a base substrate (100) comprising a display region and a lead region located at the periphery of the display region; during the process of forming a connection electrode (160) in the lead region, preserving a first photoresist layer (170) used in patterning the connection electrode (160); depositing a reflective pixel electrode layer film (181) on the base substrate (100), and performing patterning on the film (181) so as to form a reflective pixel electrode layer (180) in the display region and remove the reflective pixel electrode layer film (181) in the lead region to expose the first photoresist layer (170); and removing a second photoresist layer (190) used in patterning the reflective pixel electrode layer film (181) on the reflective pixel electrode layer (180) and the first photoresist layer (170) in the lead region. The manufacturing method can simplify ...

THREE-DIMENSIONAL DISPLAY DEVICE AND A METHOD FOR CONTROLLING SAME

A three-dimensional display device (1) comprises: a display panel (10) comprising a plurality of pixels arranged in an array, the plurality of pixels comprising left-eye pixels (L) and right-eye pixels (R) alternately disposed in each line or each column; a light splitting apparatus (20) disposed in parallel with the display panel (10) and configured to project light emitted by the left-eye pixel (L) and the right-eye pixel (R) to different visual regions, wherein there is a distance h between the light splitting apparatus (20) and the display panel (10) in an out-light direction of the display apparatus; and a distance adjustment apparatus (30) constructed to adjust the distance h between the light splitting apparatus (20) and the display panel (10) in the out-light direction of the display panel (10). Also provided is a method for controlling the three-dimensional display device.

Method and system for predicting stress layer depth after glass tempering based on machine learning

The invention discloses a method and system for predicting the depth of a stress layer after glass tempering based on machine learning, and the method comprises the steps: fitting a relation between a plurality of preset stress layer depth key feature parameters extracted based on glass components and tempering process parameters and the depth of the stress layer after glass tempering through a pre-constructed machine learning model, obtaining a trained depth prediction model; and inputting the plurality of preset stress layer depth key characteristic parameters after glass to be predicted is tempered into the trained depth prediction model, and obtaining a stress layer depth prediction result after the glass to be predicted is tempered. According to the method, for stress layer depth analysis after glass tempering, the pre-constructed machine learning model is used for fitting the relationship between the multiple preset stress layer depth key characteristic parameters extracted based ...

METHOD AND APPARATUS FOR MANAGING NETWORK NODE INFORMATION

Disclosed is a method for managing network node information, comprising the steps of: after successfully creating a tree structure of all nodes in a network to form a tree of all the nodes in the network, traversing the formed tree, acquiring information about all the nodes, saving same in a backup tree, and displaying same on a user interface; detecting state information about all the nodes in the tree, and judging whether the state information has changed; and when the state information has changed, updating the information about all the nodes according to the changed state information, and displaying the updated information on the user interface. Further disclosed is an apparatus for managing network node information. The present invention enables the management of network nodes to be clear and convenient, and updating the state information about the nodes in the network in time enables a user to learn the change of the network in time, thereby improving the experience of a CEC network ...

Method for measuring heat shrinkage rate of flexible glass

The invention discloses a method for measuring the thermal shrinkage rate of flexible glass, which comprises the following steps of: vertically placing a flexible glass sample in a furnace body to enable the initial state of the flexible glass sample to be stable, and performing exposure imaging on a dry plate to obtain an image of the end part of the sample; heating the glass sample to 400-600 DEG C at a heating rate of 2.5 DEG C/min, keeping the temperature at the temperature until the glass sample is stably heated, cooling to 150 DEG C at a cooling rate of 2.5 DEG C/min, naturally cooling to room temperature, and performing exposure imaging again to obtain a position image of the lower end part of the glass sample; and measuring the length variation of the two images obtained before and after by using an optical microscope, and further calculating the thermal shrinkage of the glass as C = L/L0. According to the invention, a method of combining an imaging method and an optical microscope ...

Fault detection system and method for box-type transformer

The invention discloses a fault detection system for a box-type transformer, and the system comprises at least three pairs of sound and vibration collection devices which are disposed in the transformer, and are used for collecting vibration signals transmitted in the space when the transformer operates; the current acquisition device is used for acquiring a current signal of an internal circuit of the transformer; the signal processing module is used for preprocessing the collected vibration signals and current signals and carrying out feature extraction and correlation fusion on the vibration signals and the current signals; the fault detection module stores a fault detection model and performs fault detection and fault positioning on the transformer; the invention also discloses a fault detection method based on combination of vibration signal and current signal characteristics. According to the invention, after the spatial position of the sound and vibration acquisition device in the ...

Device and method for testing flow explosion venting characteristics of loaded combustible gas-powder

The invention discloses a loading combustible gas-powder flow explosion venting characteristic testing device which comprises a closed explosion pipeline arranged in an annular mode, an explosion venting opening is formed in the explosion pipeline, and a second valve is arranged between the explosion venting opening and the explosion pipeline. A power system for driving gas or dust in the explosion pipeline to flow, an ignition system, a gas injection system for injecting combustible gas and combustion-supporting gas into the explosion pipeline, and a dust injection system are arranged on the explosion pipeline; the data acquisition system is used for measuring and collecting flow explosion venting data of a flowing medium after combustion in the closed pipeline; the invention further discloses a loading combustible gas-powder flow explosion venting characteristic testing method. The testing device can be used for testing the flow explosion venting characteristic after ignition and detonation ...

Hydraulic self-locking while-drilling reamer drilling method, device, equipment and medium

The invention provides a drilling method, device, equipment and medium for a hydraulic self-locking reamer while drilling, and the method comprises the following steps: a drilling tool is assembled, the hydraulic self-locking reamer while drilling, a drill bit and a drill collar assembly are assembled into a drilling tool assembly, the hydraulic self-locking reamer while drilling comprises a telescopic blade, and the telescopic blade is controlled by hydraulic pressure; the drill bit provides well drilling hydraulic pressure drop for the hydraulic self-locking reamer while drilling, and the drill collar assembly provides bit pressure for the hydraulic self-locking reamer while drilling and the drill bit. And drilling by using the drilling tool combination. According to the self-locking type reaming-while-drilling device, the hydraulic pressure difference can be comprehensively used for controlling the reaming-while-drilling device, operation is easy, adaptability is high, the drilling jamming ...

Ultra-high performance concrete and preparation method thereof

The invention discloses ultra-high performance concrete and a preparation method thereof. The ultra-high performance concrete comprises the following components in parts by weight: cement, silica fume, quartz sand, machine-made sand, steel fibers, a water reducing agent and magnetized water, and a hydrate inhibitor is added into the magnetized water; the preparation method comprises the following steps: adding a hydrate inhibitor into magnetized water for treatment; mixing and stirring the cement and the silica fume, adding the treated magnetized water and the water reducing agent, mixing, and uniformly stirring; and adding the quartz sand and the machine-made sand steel fiber, uniformly stirring, and molding. The magnetized water and the hydrate inhibitor are combined to jointly reduce the viscosity of water molecules, improve the activity of the water molecules and prolong the activity maintaining time of the magnetized water, so that the water molecules quickly enter cement particles ...

Modular gas storage device

... 本实用新型涉及一种储气设备技术领域，具体涉及一种组合式储气装置，包括换热装置、具有封闭空间的容器，上述换热装置处于容器内的封闭空间中，在容器内设置有将外界气体导流到换热装置上进行冷凝换热的导流装置，经过换热装置的气体所产生的冷凝液体滑落到容器底部，气体经过换热装置后上升到容器内上部进行存储或从容器的出气端排出到容器外。本实用新型结构简单、占地面积小、输出气体干燥且压力稳定，热能回收率高。 ...

Safety helmet based on safety production supervision and management

The safety helmet based on safety production supervision and management comprises a helmet shell, a helmet bottom, recording supervision assemblies and a protection assembly, the helmet bottom is arranged below the helmet shell, the recording supervision assemblies are arranged on the two sides of the helmet bottom, the protection assembly is arranged in the helmet shell, and the recording supervision assemblies are arranged on the two sides of the helmet bottom. Through detection and data acquisition of the production field environment by the recording and monitoring assembly, production operators can conveniently identify and troubleshoot potential safety hazards of the production field in time, and the purpose of preventing safety accidents is achieved. According to the safety helmet based on safety production supervision and management, the recorder is installed on the safety helmet, image monitoring can be carried out on the field environment in the production process, accident reason ...

TOUCH SUBSTRATE AND MANUFACTURING METHOD THEREFOR, AND TOUCH DISPLAY DEVICE

A touch substrate (100) and a manufacturing method therefor, and a touch display device, said touch substrate (100) comprising: a carrier substrate (10), a touch electrode layer (20) which is provided upon said carrier substrate (10) and which comprises a first touch electrode (21), a side surface of said first touch electrode (21) being inclined relative to said carrier substrate (10); and an anti-reflection layer (30) which is provided upon said carrier substrate (10) and which comprises an anti-reflection part (31), wherein the anti-reflection part (31) covers the side surface of said first touch electrode (21), and the refractive index of a membrane layer formed by said anti-reflection part (31) and said first touch electrode (21) is lower than the refractive index of said first touch electrode (21). Said touch substrate offers an improvement in reducing shadowing effects.

Vulcanizer main shaft staple bolt structural development mechanism

... 本实用新型涉及一种硫化机主轴抱箍结构改造机构，该硫化机主轴抱箍结构改造机构安装在硫化机的主轴上，其特征在于：该硫化机主轴抱箍结构包括圆箍式轴座、组合螺栓、油管；解决了硫化机主轴因轴和轴座磨损严重造成的硫化机运行不稳定和潜在的故障风险；直接在硫化机上维修，不要拆卸胎臂、主减速机等大件，这样可以节省大量时间，也降低了维修强度；以前需要一周的时间，现在只需要体积维护三小时即可让硫化机工作；将以往的整体主轴轴座设计成两个半圆箍式轴座，这样可以在使其对半卡在原有硫化机主轴上；在新设计的两半圆轴座上新开油槽和加油孔，保证出油正常。 ...

Construction method for treating gas outburst of tunnel zero-clear-distance extra-thick coal seam group

The invention relates to the technical field of gas tunnel construction, in particular to a tunnel zero-clear-distance super-thick coal seam group gas outburst treatment construction method, which comprises the following steps of: performing first-stage gas pumping construction on a coal seam by utilizing a pumping pipe mounted in a first pumping hole at a preset construction position; performing coal uncovering construction on the coal seam subjected to the first-stage pumping and drainage construction by a first thickness to form a first construction position, and drilling at least two second pumping and drainage holes in the coal seam at the first construction position; the method comprises the following steps: carrying out first-stage gas drainage construction on a coal seam at a first construction position, then carrying out second-stage gas drainage construction on the coal seam at the first construction position, and finally carrying out coal uncovering construction on the coal seam ...

RETRACTION DEVICE AND FEEDING MECHANISM HAVING SAME

A retraction device (100) and feeding mechanism (1000), wherein the retraction device (100) comprises a main shaft (10) and an operating unit (20); the main shaft (10) is movable along the axis thereof and is provided with a first end; the operating unit (20) comprises a pull rod (22) and a movable component (24), wherein the pull rod (22) is provided with a first end and a second end, the movable component (24) defines a stepped groove (242), the first end of the pull rod (22) is connected to the first end of the main shaft (10), and the second end of the pull rod (22) is accommodated in the groove (242); the groove (242) comprises first steps (2421) and second steps (2422) arranged in a first direction and an inclined surface (2423) connected to the first steps (2421) and the second steps (2422), and the height of the second steps (2422) along the axial direction of the main shaft (10) is greater than that of the first steps (2421); the movable component (24) is slidable along the first ...

Power transformation equipment management and control measure configuration method and system based on equipment health code

The invention discloses a power transformation equipment management and control measure configuration method and system based on an equipment health code, and solves the problem that a power transformation equipment management method in the prior art cannot meet the intelligent operation and maintenance requirement for power transformation equipment management in electric power engineering, and the method comprises the following steps: S1, creating a variable code event, and associating equipment with the variable code event; performing code changing on the equipment according to the equipment condition; s2, preventing and controlling the transcoded equipment, and generating a reminding list to realize configuration management and control of the transcoded equipment; and S3, judging the state of the managed and controlled equipment, recovering the health level of the equipment according to a judgment result, and converting into a green code. The relationship between the state of the power ...

Preparation method of high-performance anti-oxidation coating on surface of carbon-ceramic composite material

The invention discloses a preparation method of a high-performance anti-oxidation coating on the surface of a carbon-ceramic composite material, belongs to the technical field of anti-oxidation coatings, and particularly relates to preparation of the anti-oxidation coating on a matrix composite.The preparation method comprises the steps that firstly, a SiC layer is deposited on the surface of the matrix composite material through a CVD technology; the preparation method comprises the following steps: preparing a SiC layer, brushing composite slurry consisting of graphene, high-melting-point metal powder and other reagents on the SiC layer, sintering at high temperature to form a ceramic coating, and repeatedly preparing an anti-oxidation coating with a SiC layer, a silicon carbon metal layer and a SiC layer, namely, the innermost layer of the anti-oxidation coating is the SiC layer, and the outermost layer is the SiC layer. The middle layer comprises a composite layer formed by a SiC layer ...

INTERNAL SUPPORTING PART STRUCTURE FOR PLASTIC TANK

An internal supporting part structure for a plastic tank comprises a supporting rod (1) and end surface components (2) provided at two ends of the supporting rod. The supporting rod is made of a first material (4). An outer surface of the end surface component is covered by a second material (5). An outer edge (3) of the end surface component has a regular or irregular shape. The structure solves the problem in which a second material enclosing a first material and connected to an inner wall of a plastic tank can separate from the inner wall easily. When a fuel tank receives an impact, the supporting rod of the structure breaks first, thereby protecting a surface of the fuel tank from being damaged.

METHOD FOR PROTECTING RESISTIVE AC LOAD FROM BEING SHORTED, DEVICE AND SWITCH

A method for protecting a resistive AC load from being shorted includes the following steps: turning on an active controlled switch by a first conduction angle (S12); obtaining the current mean value of the load through a current detecting circuit; determining whether the current mean value of the load is greater than a preset value (S16), if so, the active controlled switch is controlled to be turned off (S17), and if not, the active controlled switch is controlled to be turned on (S18). A device for protecting a resistive AC load from being shorted and a switch are also provided. With determining whether the load is shorted in a range of the first conduction angle in which the switch may not be destroyed, the switch and the circuit connected with the load can be protected while the shorted resistive AC load is detected.