Variable-capacity indirect type tobacco curing hot-blast stove

The invention relates to a variable-capacity hot-blast stove, in particular to a variable-capacity indirect type tobacco curing hot-blast stove, and belongs to the technical field of tobacco curing devices. The variable-capacity indirect type tobacco curing hot-blast stove comprises a stove body, a surface type heat exchanger, a chimney and a positive-pressure combustion fan, wherein the surface type heat exchanger is arranged on the top of the stove body, the chimney is arranged on one side of the top end of the stove body, and the positive-pressure combustion fan is communicated with the stove body through a pipeline. The stove body comprises an ash pit, a hearth, a hearth capacity adjusting mechanism, an ash removal door, a coal feeding door, a complete combustion chamber and a grate bar, wherein the grate bar is arranged in the stove body, the stove body is divided by the grate bar, the hearth is arranged above the grate bar, the ash pit is arranged below the grate bar, the complete ...

Virtual operation artificial system based on force feedback

The invention discloses a virtual surgery simulation system based on force feedback and belongs to a virtual surgery simulation system. The virtual surgery simulation system based on force feedback comprises a single-degree-of-freedom manipulator, a control circuit and a power supply, wherein the single-degree-of-freedom manipulator comprises a manipulator, a moment motor, a position sensor, a force sensor, a motor supporting tray and a chassis; and the control circuit comprises a signal conditioning circuit, a data acquisition card, a collision detection module, a soft tissue deformation computing module, a display module, a feedback force computing module, a singlechip, a peripheral circuit of the singlechip and a motor drive circuit. The virtual surgery simulation system utilizes information feedback of various sensors to establish an environmental model which is interactive with operators and tasks through a human-computer interactive device, provides a direct-viewing and friendly human-computer ...

Automatic adding device for high-molecular polymers

The invention relates to an automatic adding device for high-molecular polymers. The automatic adding device comprises a first hopper, wherein a vibrator is arranged on the outer side of the side wall of the first hopper, and a spiral material conveyer is connected to the bottom of the first hopper; a second hopper is connected to an outlet end of the spiral material conveyer, a heater is connected to the outer side of the side wall of the second hopper, and an ejector is connected to the bottom of the second hopper; an air blower is connected to one end of the ejector, and a liquid material mixer is connected to the other end, opposite to the air blower, of the ejector. According to the automatic adding device, by virtue of a wind conveying manner, the problem that viscoelastic solids are easily produced to block the adding device during the mixing of the liquid material mixing device is solved, the calculation precision of the added high-molecular polymers is improved, and finally, the ...

Liquid cross-linking agent injecting device

The invention relates to a liquid cross-linking agent injecting device, which comprises a liquid storage tank, wherein the top of the liquid storage tank is provided with a cross-linking agent inlet; the cross-linking agent inlet is connected with a self suction pump through a pipeline; the bottom of the liquid storage tank is provided with a cross-linking agent outlet; the cross-linking agent outlet is connected with a cross-linking agent injecting pump through a pipeline; an exhaust valve is arranged on the cross-linking agent injecting pump; a pressure transmitter and an electromagnetic flow meter are arranged on a pipeline arranged at the outlet end of the cross-linking agent injecting pump; and the liquid cross-linking agent injecting device also comprises a control device. The liquid cross-linking agent injecting device has the advantages that the process preparation high-quality injection can be realized; a uniform and stable cross-linking solution system is formed; the metering ...

Soluble liquid bridge plug, preparation method and horizontal well segmented water plugging method

The invention particularly relates to a soluble liquid bridge plug, a preparation method and a horizontal well segmented water plugging method, and belongs to the technical field of oil exploitation. The soluble liquid bridge plug is prepared from the following raw materials: a temperature-resistant salt-resistant monomer, an acrylamide monomer, degradable macromolecular polyester particles, a cross-linking agent, a retarder, an initiator and a density regulator. The soluble liquid bridge plug prepared from the raw materials has viscoelasticity, so that the soluble liquid bridge plug can effectively plug a horizontal section of a horizontal well, and the soluble liquid bridge plug has water solubility, so that the soluble liquid bridge plug in a water outlet target section can be replaced in a water drive manner, and the subsequent plugging of the water outlet target section is facilitated. In addition, the soluble liquid bridge plug has good injectability, temperature resistance, salt ...

Method for extracting volatile components from Pandanus amaryllifolius Roxb leaves

The invention discloses a method for extracting volatile components from Pandanus amaryllifolius Roxb leaves by use of a supercritical CO2 extraction method. The method can obtain 151 compounds from the volatile components of Pandanus amaryllifolius Roxb, but a steam distillation method only can obtain 95 compounds, and extra 56 compounds, such as n-heptatriacontanyl alcohol, methyl linolenate, phytyl acetate, 3-hydroxyl-7 (isonitroso) ursodeoxycholic acid and dihydroactinidiolide, which cannot be obtained by the steam distillation method, are obtained by the method provided by the invention. The method for extracting the volatile components from Pandanus amaryllifolius Roxb leaves is superior to the steam distillation method in the aspects of smell, yield, chemical composition, squalene yield and extracting efficiency.

Application of water-soluble silicon quantum dot to dopamine detection

The invention provides application of a water-soluble silicon quantum dot to dopamine detection. According to a theory that the fluorescence of a silicon quantum dot is quenched by virtue of electron transferring between dopamine and the silicon quantum dot, the concentration of dopamine in a sample is detected. The application has the advantages of simplicity in sample synthesis, high sensitivity, wide detection range, high specificity, low detection cost and the like, also has the advantages of small silicon quantum dot size, low toxicity and high photobleaching-resistant performance, and can be a method for monitoring dopamine in vivo or in vitro for a long time.

Hypercoagulable thick oil activating agent used in water shut-off, and oil well water shut-off method

The invention provides a hypercoagulable thick oil activating agent used in water shut-off, and an oil well water shut-off method. The hypercoagulable thick oil activating agent is obtained by mixing a water shut-off activating agent and hypercoagulable thick oil. The water shut-off activating agent is composed of a main agent and an auxiliary agent. The main agent is composed of coconut oil fatty acid diethanolamide and a sugar-based surfactant. The water shut-off activating agent comprises, by weight: 30-50% of the coconut oil fatty acid diethanolamide, 30-50% of the sugar-based surfactant, and 5-20% of the auxiliary agent. The invention also provides an oil well water shut-off method applying the hypercoagulable thick oil activating agent. The hypercoagulable thick oil activating agent provided by the invention has the advantages of environment-friendliness, simple process, good stratum compatibility, good selective water shut-off capacity, wide reservoir type adaptability, low raw material ...

Agitator tank

The invention discloses an agitator tank. The agitator tank comprises a shell with an inner cavity, a baffle fixedly arranged in the shell, a motor, a transmission shaft and a stirring device, wherein the baffle is provided with multiple eyelets, the inner cavity of the shell is divided into a first space and a second space by virtue of the baffle, and the shell is provided with a material inlet communicated with the first space and a material outlet communicated with the second space; the motor is arranged on the shell, the transmission shaft is in drive connection with the motor and extends into the first space in the shell, and the stirring device is in drive connection with the motor and is arranged in the first space in the shell. According to the agitator tank, chunk hard lumps in a solution are crushed by virtue of the baffle with the eyelets, solid particle drying agents flowing from the solution are uniformly dispersed, and the quality of chemicals is ensured, and the damage of ...

High-strength degradation-retarding profile control channeling sealing agent as well as preparation method and application thereof

The invention particularly relates to a high-strength slow-degradation profile control channeling sealing agent and a preparation method and application thereof, and belongs to the technical field of oil exploitation, the channeling sealing agent comprises syrup and airflow turning particles, the characteristics that the syrup is high in solubility in water and can form large crystals without water are utilized, channeling sealing is achieved by removing water in the high-concentration syrup, and the airflow turning particles can form large crystals in the absence of water. In the gel forming process of the stratum under the high-temperature condition, the airflow steering particles remove most moisture in the syrup, the syrup is crystallized into a profile control channeling sealing agent with certain strength due to moisture loss, a gas channeling channel is blocked, the syrup and the airflow steering particles are slowly degraded or carbonized under the high-temperature action of tail ...

Curing jar for plugging and profile control

The utility model provides a curing jar for plugging and profile control, include: the cross section is the circular shape tank body, and the upper end of tank body is fixed with the guard frame, and its lower extreme is equipped with a discharge gate, installs ejection of compact valve on the discharge gate, lays on the guard frame and is fixed with the support steel mesh, is equipped with the pan feeding mouth on the tank body, pan feeding mouth protrusion in the upside that supports the steel mesh, and the lower extreme of annotating the material pipe passes through the flange and is connected mutually with the periphery of pan feeding mouth, agitating unit, including driving motor and place the straight blade thick liquid style whip in the tank body, driving motor stands upside down and installs on supporting the steel mesh, and the centre bore of the output shaft of its lower extreme through the tank body upper end stretches into in the inner chamber of tank body to be connected mutually ...

Finger-clamping pulse oximeter with traditional Chinese medical science pulse feeling function

The invention discloses a finger-clamping pulse oximeter with traditional Chinese medical science pulse feeling function. A singlechip system is taken as a lower computer; a personnel computer (PC) is taken as an upper computer; a detected human body pulse signal is converted into an electrical signal by a photo sensor; the signal is amplified by a boosting and amplifying circuit and is purified by a filter circuit; an analog signal is converted into a digital signal by an analog to digital (A/D) conversion circuit; the digital signal is transmitted to a singlechip, processed and analyzed by the singlechip and transmitted to the PC through a universal serial bus (USB); changes of pulse shape, pulse frequency, rhythm, depth and the like are observed by special upper computer software, analysis is performed in combination with a traditional Chinese medical science pulse feeling theory and an analysis result is displayed on the PC; and a small-sized display screen can be connected with the ...

Flexible gel particle and flexible gel particle plugging agent prepared from the same

The present invention provides a flexible gel particle and a flexible gel particle plugging agent prepared from the same. The raw materials for preparing the gel particle comprise, by weight, 6-12wt% of acrylamide, 3-12wt% of temperature tolerant monomer, 5-15wt% of alkali and salt resistant monomer, 0.2-1wt% of partially hydrolyzed polyacrylamide with high and middle molecular weight, 0.02-0.08wt% of an initiator, 0.04-0.1wt% of a crosslinking agent, 0.01-0.1wt% of a retarder, 1-8wt% if a plasticizer and the balance of water. The temperature tolerant monomer includes Si-O bond monomer; the alkali and salt resistant monomer includes acrylate monomer; and the partially hydrolyzed polyacrylamide with high and middle molecular weight has number-average molecular weight of 8-16 million. The flexible gel particle is prepared into a suspension with certain concentration by water or polyacrylamide solution, so as to prepare the flexible gel particle plugging agent. The flexible gel particle plugging ...

Indepth fluid diverting agent of oil reservoir and preparation method and application of indepth fluid diverting agent

The invention provides an indepth fluid diverting agent of an oil reservoir and a preparation method and application of the indepth fluid diverting agent. The indepth fluid diverting agent comprises, by mass, 20-35wt% of acrylamide based monomers, 2-10wt% of vinyl-containing silane, 10-25wt% of arene-containing vinyl or olefine monomers, 0.03-0.1wt% of a cross-linking agent, 0.02-0.08wt% of an initiating agent, 0.5-2wt% of a dispersing agent, 2-12wt% of an anti-sticking agent, and the balance water. The invention further provides the preparation method of the indepth fluid diverting agent. The preparation method includes the steps that the acrylamide based monomers, the vinyl-containing silane, and the arene-containing vinyl or olefine monomers are mixed and then heated to 60-80 DEG C, the cross-linking agent, the initiating agent, and the dispersing agent are added, after 1-2 hours of reaction, the anti-sticking agent is added, after polymeric microsphere suspension is formed, precipitation ...

Wharf transformation method and wharf

The invention discloses a wharf transformation method and a wharf. The method comprises the steps that rear steel sheet piles are driven on the rear side of the old wall body; grouting is conducted on part of the old backfill area, and a grouting area is formed; the partial area is the area, adjacent to the old wall body, in the old backfill area, and the rear steel sheet pile penetrates through the grouting area; the old breast wall is dismantled; a front steel sheet pile is driven on the front side of the old wall body; underwater concrete is filled between the front steel sheet pile and the old wall body, so that the front steel sheet pile and the old wall body are connected into a whole; and a new breast wall is poured above the old wall body, and the front steel sheet piles and the rear steel sheet piles are connected into a whole through the new breast wall. Residual strength of the old wharf structure can be fully utilized, structural stability and durability of the old wharf after ...

Surfactant of oil-displacing agent as well as preparation method and application of surfactant

The invention particularly relates to a surfactant of an oil displacement agent as well as a preparation method and application thereof, and belongs to the technical field of oil exploitation, the surfactant comprises the following components in percentage by mass: 0.01%-0.02% of sodium alginate, 5%-10% of disodium fatty alcohol-polyoxyethylene ether (3) sulfosuccinate, 10%-20% of alkyl glycoside and the balance of a solvent; through the combined action with polymers or other agents, the oil-water interfacial tension is reduced to be ultralow, the adhesion work of stripping crude oil is reduced, the oil washing efficiency is greatly improved, and a solid theoretical foundation is laid for long-term stable production or yield increase of later water injection development of oil reservoirs.

Composite additive, deep profile control and flooding cross-linking agent and preparation method and application of deep profile control and flooding cross-linking agent

The invention particularly relates to a compound additive, a deep profile control and flooding cross-linking agent and a preparation method and application of the deep profile control and flooding cross-linking agent, and belongs to the technical field of oil exploitation. 0.005% to 0.012% of a second cross-linking agent body; 0.01% to 0.03% of dimethyl sulfoxide; 0.008% to 0.012% of carbonate; 0.02%-0.05% of tartaric acid; 0.03% to 0.05% of lignosulfonate and/or gluconate; 0.01%-0.03% of sodium acetate and/or urea; 0.008% to 0.01% of barium hydroxide; 0.01% to 0.02% of thiourea; and the balance of water. By introducing the compound additive, the reaction time can be controlled, deep profile control and channeling sealing are facilitated, more effective products are produced, and the dosage of chemicals is reduced. Meanwhile, the water solubility of the product can be improved, and the performance stability is prolonged.

Sewage treatment agent, as well as preparation method and application thereof

The invention provides a sewage treatment agent, as well as a preparation method and an application thereof. The sewage treatment agent is prepared from isopropanol, ethylene diamine tetraacetic acid (EDTA), sodium nitrite, thiourea, acraldehyde, sodium bicarbonate and sodium hexametaphosphate in a mass ratio of (4-8):(0.5-1):(1-2):(0.5-1):(0.1-0.5):(0.5-1):(0.1-0.5). The invention also provides a preparation method of the sewage treatment agent and a method for treating sewage adopted for preparing a polymer solution. The sewage treatment agent is easily available in raw materials, simple in preparation process and low in production cost, can be easily stored, has high stability, has good solubility in sewage, and is capable of completely treating sewage and effectively reducing degradation of impurities in sewage on polymers.

Blocking remover for removing polymer pollutants

The invention provides a blocking remover for removing polymer pollutants. The blocking remover for removing the polymer pollutants comprises oleic acid, sodium alpha-olefin sulfonate, sodium oxalate, ferrous sulfate, sodium nitrite and aminosulfonic acid in the mass ratio of (4-6): (2-4): (2-4): (1-2): (1-2): (2-3). The invention further provides a preparation method of the blocking remover, and the preparation method comprises the following steps: starting a reaction kettle, adding the oleic acid into the reaction kettle and stirring; adding the sodium alpha-olefin sulfonate into the reaction kettle, and sequentially adding the sodium oxalate, the ferrous sulfate, the sodium nitrite and the aminosulfonic acid under continuous stirring to obtain the blocking remover for removing the polymer pollutants. The invention further provides a blocking removing method by adopting the blocking remover. The blocking remover provided by the invention has the advantages of simple preparation process ...

Clamp wheel type automobile carrier

The invention discloses a clamp wheel type automobile carrier, comprising a first carrying vehicle and a second carrying vehicle which are connected from front to back and are the same in structure; the first carrying vehicle and the second carrying vehicle are connected by a crank arm; the first carrying vehicle comprises a vehicle frame, a clamp mechanism for clamping automobile tyres and a traveling mechanism for carrying an automobile to travel; the clamp mechanism comprises two clamp components which are symmetrically distributed at two sides of the vehicle frame; each clamp component comprises a pair of clamp arms and a linkage gear set for connecting with the clamp arms; a linkage rack is arranged between the linkage gear sets of two clamp components and is pushed by means of ball screws; and the ball screws are connected with a clamp arm drive output sprocket wheel and are driven by a clamp arm drive motor. By adopting the clamp arm drive structure of gears and racks, the processing ...

Histopathological image classification method for intelligent diagnosis of gastroscope biopsy

The invention discloses a histopathological image classification method for intelligent diagnosis of gastroscope biopsy, and relates to intelligent diagnosis, artificial intelligence, deep learning, and pathological classification of abnormal regions in gastric cancer tissue images. The histopathologic image of the gastric cancer contains enough feature information, and plays a crucial role in diagnosis and treatment of the gastric cancer. The gastric cancer histopathology images are automatically classified through the deep learning technology, and the classification result can help a pathologist to quickly distinguish different types of lesions from a large number of gastric cancer images, so that the diagnosis time is shortened, the gastric cancer prevention and diagnosis efficiency is improved, and the accuracy of the diagnosis result of a pathologist is improved. The invention provides a histopathological image classification method for intelligent diagnosis of gastroscope biopsy.

Application of water-soluble silicon quantum dots as drug carriers

The invention provides application of water-soluble silicon quantum dots as drug carriers. A preparation method of a silicon quantum dot-drug molecule composition comprises the following concrete steps: preparing aminated silicon quantum dots, performing maleimide treatment on the surfaces of the aminated silicon quantum dots, and preparing the silicon quantum dot-drug molecule composition. According to the method, the silicon quantum dots are connected with drug molecules through short-chain polyethylene glycol molecules, and the prepared silicon quantum dot-drug molecule composition has the advantages of high purity, good water solubility, protein adsorption resistance, no additional fluorescent mark, capability of achieving passive targeting in the body, capability of entering urine through the blood-brain barrier and the glomerular vascular wall to be discharged from the body, a certain drug slow-release effect and the like.

Measurement device for measure flexible stifled agent tensile properties

The utility model relates to a measurement device for measure flexible stifled agent tensile properties, including the hollow sleeve that transparent material made, hollow sleeve has a blind end and an open end, is equipped with scale, datum line on the hollow telescopic lateral wall. The central authorities of blind end have first elongated slot and the second elongated slot that the cross set up, and first pull ring, rear end connection second pull ring are connected to the front end of first connection rope. The length of first elongated slot is greater than the external diameter of second pull ring, and the length of second elongated slot is less than the external diameter of second pull ring. The rear end of second pull ring is passed through second connection rope and is connected with first anchor clamps. Second anchor clamps rear end is passed through the third and is connected the rope and be connected with the third pull ring, and third pull ring rear end is connected with a hanging ...

Tunnel ventilation control method based on fuzzy control

The invention discloses a fuzzy-control-based method for controlling ventilation of tunnels, which is characterized in that a first fuzzy controller and a second fuzzy controller respectively output a first blower quantity value and a second blower quantity value, the number of blowers which need to be turned on is obtained by choosing the bigger one of the first blower quantity value and the second blower quantity value; the input quantity of the first fuzzy controller is the current concentration of carbon monoxide and the current concentration increment thereof; the input quantity of the second fuzzy controller is the current smoke concentration and the current smoke concentration increment. The method of the invention does not depend on mathematical modeling of the controlled object and can realize intelligent control of tunnel ventilation based on the fuzzy control.

Method for determining squalene content of pandanus amaryllifolius Roxb. volatile compoistions

The invention discloses a method for determining squalene content of pandanus amaryllifolius Roxb. volatile compositions. HPLC is employed for determination. The mobile phase is methanol, the flow velocity is 0.8-1.2 mL/min, the detection wavelength is 204 nm, the column temperature is 25-35 DEG C, the detection time is 30 min, and the sample size is 10 mu L. By using the method for determining squalene content from pandanus amaryllifolius Roxb. volatile compositions, the sample size and the peak area integral value show a good linear relation, the sample stability, the instrument precision, the method reappearance and the method specificity all accord with requirements, and a basis is established for rapid and accurate quantification of squalene.

Over -and -under type operation platform

The utility model provides an over -and -under type operation platform, over -and -under type operation platform includes: the base of rectangle, the platform of rectangle sets up and is in the top of base, the platform includes: the steel sheet net and the encirclement of rectangle are in platform frame outside the steel sheet net, first landing leg is connected between the first end on first base and the second on the third base end, the second landing leg is connected between the second end on first base and the first end on third base, and slide on the first base, furthermore, first landing leg and second landing leg intercrossing and articulated through the hinge, the positioning bolt hole that a plurality of intervals set up sets up at each on the first base, positioning bolt sets up in the positioning bolt hole, the second landing leg passes through the positioning bolt location is in on the first base. The utility model provides a high uncontrollable problem of well head operation ...

Multi-task histopathological image lesion segmentation method

The invention discloses a multi-task histopathological image lesion segmentation method, and relates to the problem of judging a real tumor region and a lesion type in a gastric cancer tissue image in a gastric cancer CAD (Computer Aided Design) technology. Accurate tissue lesion segmentation and lesion classification are of great significance to clinical assessment of lesion states of diseases and formulation of proper diagnostic schemes. Due to individual differences and visual similarities of gastric cancer tissue lesions in shape, color and texture, gastric tumors are difficult to segment and accurately classify. In order to solve the problem, the invention provides a histopathological image lesion segmentation method based on multi-task learning. Experiments show that the method realizes classification with the accuracy rate of 98.19% and the F1 score of 95.83%, and segmentation with the accuracy rate of 86.74% and the mIoU score of 88.83% for gastric cancer histopathology images.

Pour point depression and viscosity reduction agent and preparation method thereof

The invention provides a pour point depression and viscosity reduction agent. The pour point depression and viscosity reduction agent is characterized in that the pour point depression and viscosity reduction agent is a copolymer formed by a first monomer and a second monomer, wherein the first monomer is R1-CH=CH-COOR2, R1 is H, alkyls of C1-6 or COOH, R2 is alkyls of C12-24, and the second monomer is an olefinic bond-containing monomer with surface activity.

Large-dial blood pressure meter capable of changing scale or color of pointer

The invention discloses a large-dial blood pressure meter capable of changing the scale or the color of a pointer, which consists of a color liquid crystal blood pressure meter dial, a control circuit, a rubber pipe, a sleeve bag, an air valve, a rubber ball and a key. By means of the large-dial blood pressure meter, the scale value pointed by the pointer on the blood pressure meter dial and (or) the color of the pointer can be changed according to the value of measured systolic pressure (diastolic pressure); moreover, by means of the large-dial blood pressure meter, an alarm is given by a buzzer according to the value of the measured systolic pressure (diastolic pressure) so that an operator is warned to observe the measured numerical value or phonetically report the measured numerical value through a loudspeaker. Through the invention, the medical workers and the patients can concentrate on the measurement of the blood pressure by using the blood pressure meter without diverting attention ...

Large steel member wide-breadth surface cleaning equipment

The invention discloses wide-breadth surface cleaning equipment for a large steel member. The wide-breadth surface cleaning equipment comprises a moving structure capable of moving in all directions and a cleaning structure installed above the moving structure and capable of rotating in all angles. The cleaning structure comprises a mechanical arm and two cleaning heads installed on the mechanical arm, and the cleaning heads are suitable for moving on the mechanical arm to adjust the distance. The equipment can be moved to a destination through a moving structure capable of rotating in a full-angle mode, frequent equipment carrying and equipment steering are not needed, moving is flexible, and the cleaning position can be rapidly adjusted; by arranging the mechanical arm capable of rotating at all angles, welded components do not need to be carried to the position near cleaning equipment, and safety and cleaning efficiency can be improved; the mechanical arm capable of moving at all angles ...

Jet flow mixing device

The invention provides a jet flow mixing device which comprises a mixing unit, a liquid inlet pipe, a nozzle and a flow distributing pipe, wherein a mixing cavity is formed in the mixing unit; a feeding hole for feeding solid raw materials into the mixing cavity is formed in the top of the mixing unit; a liquid inlet for inputting liquid raw materials into the mixing cavity and an outlet for discharging a mixture from the mixing cavity are formed in side walls of the mixing unit; the liquid inlet and the outlet are opposite to each other; a runner for liquid flowing is formed in the liquid inlet pipe; the nozzle comprises an input opening communicated with the runner of the liquid inlet pipe, a nozzle orifice communicated with the liquid inlet of the mixing unit, and a vent communicated with the input opening and the nozzle orifice; the cross sectional area of the nozzle orifice is smaller than the cross sectional area of the runner; the flow distributing pipe is communicated with the runner ...

Turnover device and component turnover method

The invention discloses a turnover device and a component turnover method. The turnover device comprises a mounting seat, a turnover mechanism and a turnover mechanism, the turnover mechanism comprises a first turnover assembly with a first turnover piece and a second turnover assembly with a second turnover piece, the second turnover piece is arranged on the side of the first turnover piece, the end, close to the second turnover piece, of the first turnover piece is rotationally connected with the mounting base, and the first turnover piece can rotate towards or back to the second turnover piece; the end, close to the first overturning piece, of the second overturning piece is rotationally connected with the mounting base, and the second overturning piece can rotate towards or back to the first overturning piece; and the component conveying mechanism is used for conveying the component from the first turnover piece to the second turnover piece or conveying the component from the second ...

Test system of biological soft tissue force feedback touch feeling model building

The invention discloses a test system for force feedback haptic modeling of biological soft tissues, comprising a single-freedom-degree manipulator, a control circuit, a power supply, and a working environment holder, wherein, the single-freedom-degree manipulator comprises a mechanical arm, a moment motor, a position transducer, a force transducer, a motor support tray, a base plate, an operation needle, and a clamp; the control circuit comprises a force-modulated amplifying circuit, a position signal-modulated circuit, a data acquisition card, a data storage display computer, a haptic modeling computer, a serial-port circuit, a SCM and the peripheral circuit thereof, and a motor drive circuit; and the working environment holder is composed of supports and a case. In the invention, the database of force feedback haptic modeling of biological soft tissues is built, thus the test system has wide test range, rapid test speed, and high test accuracy.

Construction method for prestressing high-strength concrete pipe pile under special geologic condition

The invention relates to a construction method for a pre-stress high-strength concrete pipe pile in a special geological condition, comprising: determining length of required pre-stress high-strength concrete pipe pile according to special geologic reconnaissance data; hammering the pile pipe by using a pile hammer after the pile pipe is pitched until the pipe pile planishes ground surface, then feeding the pile, disposing at least one cushioning article between the pile feeder and the pile at the same time. The cushioning article is used to elongate hammer action time, descend hammering speed and hammering stress, thereby, the pipe pile is not easy to be broken.

Curing tank for preparing water shutoff and profile control agent

The invention provides a curing tank for preparing a water shutoff and profile control agent, which solves the problem of overlarge viscosity loss in a process of preparing the water shutoff and profile control agent by an existing curing tank for preparing the water shutoff and profile control agent. The curing tank for preparing the water shutoff and profile control agent, provided by the invention, comprises a tank body with an inner cavity, and a stirring unit arranged in the inner cavity of the tank body, wherein the stirring unit comprises a rotating shaft, and at least one layer of blade group; the upper part of the rotating shaft is rotatably arranged on the tank body around an axial line of the rotating shaft, each layer of blade group comprises one or more blades located in a plane vertical to the axial direction of the rotating shaft, each blade is fixedly connected to the rotating shaft, and the outer wall surface of each blade, which faces towards the rotating direction of ...

Device and method for quickly measuring tensile property of high-elasticity material

The invention provides a device and a method for quickly measuring the tensile property of a high-elasticity material. The device comprises a blenometer, a first metal ring, a hollow cylinder with scales, a lower clamp, an upper clamp, a second metal ring and a third metal ring, wherein the third metal ring is connected with the second metal ring through first elastic-free connection equipment; a ring hole and a clamping slot are formed in the third metal ring; the second metal ring is connected with the upper clamp through second elastic-free connection equipment; the upper clamp and the lower clamp are used for fixing a sample to be measured; the lower clamp is connected with the first metal ring through third elastic-free connection equipment; the third metal ring is arranged above the exterior of the hollow cylinder with the scales; the first metal ring is arranged below the exterior of the hollow cylinder with the scales; the upper clamp and the lower clamp are arranged in the hollow ...

Chain of preventing derailment of a chain holds in palm chain device

The utility model discloses a chain of preventing derailment of a chain holds in palm chain device, including installing the bottom plate on the fixed beam, be equipped with lower part nylon conducting bar on the bottom plate, still cover on the bottom plate and establish a protection casing, the protection casing covers in top and two sides of bottom plate, and the protection casing is equipped with the opening that supplies the chain to pass through in both ends around, the protection casing top is connected with upper portion nylon conducting bar downwards, upper portion nylon conducting bar and lower part nylon conducting bar correspond and leave confession chain drive's dead slot from top to bottom, the side level of protection casing is extended and is formed stationary side plate, and stationary side plate and bottom plate are connected. The utility model discloses a chain of preventing derailment of a chain holds in palm chain device can prevent that the chain drive in -process ...

Fastening method of post-treating pipe pile break with pre-stress pipe pile construction

The invention relates to a reinforcing method for dealing with the rupture of a pipe pile after the construction of the prestressed pipe pile. The procedures are as following: (1) the position of the rupture of the prestressed pipe pile is detected first; (2) the laitance on the inner wall of the pipe pile is cleared; (3) a reinforced skeleton frame is put into the pipe pile and the reinforced skeleton extends to the position three meters under the pipe pile from the pile top; (4) concrete under pile level is poured into the pipe pile, and the strength grade is not smaller than C30; (5) after the condensation of the concrete, the reinforced skeleton frame is led to be fixed with the reinforced steel in a cushion cap, and further the reinforced technique of the rupture of the pipe pile is finished. The reinforcing method of the invention can ensure the safety of the structure and does not affect the construction of the next working procedure; besides, the invention has the advantages of ...

Pipe column for horizontal well

The invention discloses a pipe column for a horizontal well. The pipe column comprises an oil pipe, a first centering guide, a first packer, a constant pressure valve, a second centering guide and a ball seat, wherein the first centering guide, the first packer, the constant pressure valve, the second centering guide and the ball seat are sequentially arranged on the oil pipe in a sleeved mode, and the ball seat is used for blocking off the oil pipe. The first packer comprises a first center pipe and a first rubber sleeve, wherein the first center pipe is communicated with the oil pipe and provided with a first flow guide hole for applying pressure on the first rubber sleeve. The inlet end of the constant pressure valve is communicated with the oil pipe. The inner diameter of the first rubber sleeve of the first packer is 58-62 mm, and the length of the first rubber sleeve of the first packer is 950-1200 mm. According to the pipe column, after pressure is applied on the interior of the ...

Returning ware

The utility model provides a returning ware, it includes: the body that the lengthwise extends, the body have back to first portion and second portion, the extending direction of first portion with be formed with a contained angle between the extending direction of second portion, with the area body of the lengthwise extension that the second portion is connected, take the body and function in twining on the tubular column, set up in compress tightly the piece on the first portion, compress tightly the piece have can with take the body pressure tightly to be in seal face on the tubular column. Realized the utility model discloses can provide a mesh that does not harm single surface and fix effectual returning ware.

Magnetic stirring contactor

The embodiment of the invention aims to provide a magnetic stirring contactor so as to solve the problem that the wear rate of each part is accelerated caused by that materials in a reaction kettle enter the inner cavity to generate blocks and generate friction with each part during the operation of the magnetic stirring contactor, and solve the problem of corrosion of the materials on each part in the inner cavity. The magnetic stirring contactor comprises an outer cavity, the inner cavity, a stirring shaft and an impeller, wherein the inner cavity is partially arranged in the outer cavity; the stirring shaft is fixed in the inner cavity; the impeller is arranged outside the outer cavity and is connected with the stirring shaft; a seal ring is arranged on the end face, close to the impeller, of the inner cavity; and preferably, the seal ring is particularly a skeleton seal ring. The seal ring of the embodiment of the invention can prevent the materials in the reaction kettle from entering ...

Stifled water conservancy project skill tubular column of sleeve pipe well completion horizontal well chemistry segmentation

The utility model relates to a stifled water conservancy project skill tubular column of sleeve pipe well completion horizontal well chemistry segmentation, including oil pipe and safety joint, safety joint connects in oil pipe's rear end, and the position of the corresponding wet well section in safety joint's rear portion is equipped with to seal to separate pours into the subassembly into, seals to include fluid pressure type packer, choke valve, ball seat and supporting steel ball at a distance from pouring into the subassembly into, the fluid pressure type packer sets up in the one side or the both sides of wet well section, and the choke valve corresponds the setting with the wet well section, and the ball seat setting at the choke valve rather than corresponding at the back, lug connection or connect through oil pipe between fluid pressure type packer, choke valve, the ball seat. The utility model discloses construction process is simple, and the shutoff high section of oozing is ...

Method for optimizing automobile product development system based on hierarchical decomposition

The invention relates to a method for optimizing an automobile product development system based on hierarchical decomposition. The method comprises: determining an optimized product development target; transmitting the development target in the entire vehicle hierarchy to lower hierarchies, namely the system hierarchy and the component hierarchy; realizing synergistic optimized solving among various hierarchies; and realizing the flexibility of a development task and modularized execution of development subtasks by combing the method with a multidisciplinary design optimization method. The invention provides the method which has quick convergence speed and high solving quality and can simultaneously realize optimization of development performance indexes and a design proposal in the entire vehicle hierarchy, the system hierarchy and the component hierarchy.

Detection device and method for testing gelling strength of plugging agent

The invention discloses a detection device for testing the gelling strength of a plugging agent. A lifting rod and a control system used for controlling the lifting rod to move up and down vertically are arranged on a bracket; the lifting rod is arranged in a guiding hole in the bracket in a vertically sliding manner, and is above a testing container; the testing container adopts a cylinder with an opening formed in the upper end; a transparent horizontal pipe section with scale marks is connected to one side at the bottom of the testing container; a switch valve is arranged at the joint between the transparent horizontal pipe section and the side at the bottom of the testing container; a disk, of which the diameter is the same as the inner diameter of the testing container, is connected to the lower end of the lifting rod; the control system drives the lifting rod to move; the disk exerts pressure on the lugging agent; the gelling strength of the plugging agent is obtained by testing the ...

Anti-chain falling chain support device

The invention discloses an anti-chain falling chain support device. The anti-chain falling chain support device comprises a bottom plate arranged on a fixed beam, the bottom plate is provided with a lower nylon guide strip, a shield covers the bottom plate, the shield covers the top and two lateral surfaces of the bottom plate, openings through which a chain passes are formed in the front and rear ends of the shield, the top of the shield is downward connected with an upper nylon guide strip, the upper nylon guide strip and the lower nylon guide strip are corresponding in the vertical direction, a hollow slot for transmitting the chain remains between the upper nylon guide strip and the lower nylon guide strip, the lateral surfaces of the shield extend horizontally to form fixed lateral plates, and the fixed lateral plates are connected with the bottom plate. The anti-chain falling chain support device can prevent the vertical jump of the chain in the transmission process, the chain would ...

Escalator middle glass bracket tooling

The invention relates to an escalator middle glass bracket tooling, which consists of an upper rod, fast clamps, positioning blocks, support rods and a lower rod, wherein the two support rods are connected with the upper rod and the lower rod to form a framework structure, the fast clamps are connected with the two ends of the upper rod, and the two positioning blocks are fixedly connected with the bottom ends of the two support rods. The tooling has the advantages that the escalator middle glass bracket tooling uses the main guide rail as the reference for positioning, then, an escalator middle glass bracket is positioned in a correct installing position through the indirect connecting effect of the device, and the tooling can be used for fast and accurately installing the escalator middle glass bracket.

Delayed crosslinking type in-depth profile control agent and preparation method thereof

The invention particularly relates to a delayed cross-linking type deep profile control agent and a preparation method thereof, and belongs to the technical field of oil exploitation, the profile control agent comprises the following components: an organic material, a composite cross-linking agent, an inhibitor, an active agent, a heat stabilizer, a dispersing agent, a glue retaining agent, a synergist and the balance of water, the problems of insufficient injection, no injection, fast pressure increasing and the like of a conventional profile control technology are solved, the follow-up water flooding swept volume is enlarged, the oil increasing and water reducing effects are remarkable, the popularization prospect in oil reservoirs of the same kind is wide, and meanwhile the formula performance is in the domestic leading level.

Wellhead sampling device for in-depth fluid diversion

The invention provides a wellhead sampling device for in-depth fluid diversion. A sampling drum is arranged, a clamping hoop head is arranged on the port of the sampling drum, one end of the clamping hoop head is arranged and fixed on the peripheral face of the port in a sleeving way, a sampling pipe and a blow-down pipe are oppositely arranged on the side wall of the sampling drum, a sampling valve is connected onto the sampling pipe, an air release valve is arranged on the blow-down pipe, the inner side wall of the sampling drum and the end face of the port of the sampling drum are in smooth connection, and the inner side wall of the sampling drum and the drum bottom of the sampling drum are in smooth connection. The wellhead sampling device for in-depth fluid diversion is used for profile control water plugging, in-depth fluid diversion, polymer flooding, and chemical flooding solution, the cutting phenomenon cannot occur when liquid is fed, the operation is safe, and the normal production ...

Activating agent for water plugging and water-plugging thickened oil activating agent prepared from same

The invention provides an activating agent for water plugging, and a water-plugging thickened oil activating agent prepared from the same. The water-plugging thickened oil activating agent is formed by mixing the activating agent for the water plugging and thickened oil, wherein the activating agent for the water plugging comprises a main agent and auxiliaries, and the main agent comprises a higher fatty alcohol-polyoxyethylene ether sulfate anionic surfactant and an imidazoline zwitterionic surfactant. The invention further provides a method for performing oil well water plugging by utilizing the water-plugging thickened oil activating agent. The water-plugging thickened oil activating agent has the advantages that the environment is low in toxicity and pollution-free, the field operation process is simple, the compatibility with a stratum is good, the selective water plugging performance is high, and the water-plugging thickened oil activating agent is suitable for thickened oil and super ...

Curing tank for water shut-off and profile control

The invention provides a curing tank for water shut-off and profile control. The curing tank comprises: a tank body with a circular cross section, wherein a protection rack is fixedly arranged on the upper end of the tank body, the lower end of the tank body is provided with a discharge outlet, a discharge valve is installed on the discharge outlet, a supporting steel mesh is laid and fixedly arranged on the protection rack, the tank body is provided with a feed inlet, the feed inlet protrudes from the upper side of the supporting steel mesh, and the lower end of a material injecting pipe is connected with the periphery of the feed inlet through a flange; and a stirring device, which comprises a driving motor and a straight blade paddle agitator arranged in the tank body, wherein the driving motor is invertedly arranged on the supporting steel mesh, an output shaft at the lower end of the driving motor extends into the cavity of the tank body through a central hole in the upper end of the ...

Detection apparatus for stifled agent of survey becomes to glue intensity

The utility model relates to a detection apparatus for stifled agent of survey becomes to glue intensity is equipped with lifter and the vertical control system who reciprocates of this lifter of control on the support, the vertical gliding setting of lifter is in the guiding hole of support, and the lifter is located test container top, and the test container is upper end open -ended cylindrical shape, and the transparent horizontal pipeline section that is equipped with the scale is connected to bottom one side of test container, and transparent horizontal pipeline section is equipped with the ooff valve with bottom one side junction of test container. The lower extreme of lifter is connected with a diameter and the same disc of test inside diameter of vessel, control system drives the lifter and removes, and the disc is exerted pressure to stifled agent, comes the one -tenth of the stifled agent of sign to glue intensity through measuring when stifled agent is flowed to a certain scale ...

Oilfield foaming agent injection system

The invention discloses an oilfield foaming agent injection system. The oilfield foaming agent injection system comprises a liquid storage tank, wherein the liquid storage tank is connected with a feeding pump through a pipeline; the outlet end of the feeding pump is connected with a first high-pressure check valve through the pipeline; the outlet end of the first high-pressure check valve is in sealing connection with a high-pressure hard pipe; a second high-pressure check valve is arranged at the outlet end of the high-pressure hard pipe; the oilfield foaming agent injection system also comprise a control device. By virtue of the oilfield foaming agent injection system, the problems of the prior art can be overcome; the small-displacement continuous injection of the foaming agent in the oilfield high-pressure pipeline is implemented; a pressure protection device is arranged in the system; meanwhile, by virtue of the skid-mounted design, the oilfield foaming agent injection system is compact ...

Method for adjusting surgical light parameters, surgical lighting device, and readable storage medium

Method and apparatus for constructing multi-task learning model, electronic device, and storage medium

This application relates to a method for constructing a multi-task learning model, an electronic device, and a computer-readable storage medium. The method includes: constructing a search space formed between an input node and a plurality of task nodes by arranging a plurality of subnetwork layers and a plurality of search layers in a staggered manner. A search layer in the plurality of search layers is arranged between two subnetwork layers of the plurality of subnetwork layers. The method includes sampling a path from the input node to each task node of the plurality of task nodes through the search space to obtain a candidate path as a candidate network structure; and training a parameter of the candidate network structure according to sample data, to generate the multi-task learning model for performing a multi-task prediction.