配电柜（油井监控系统）

Non-aqueous electrolyte and sodium ion battery

The invention provides a non-aqueous electrolyte and a sodium ion battery. The non-aqueous electrolyte comprises a non-aqueous organic solvent, a sodium salt and an additive, wherein the additive comprises a compound 1. The compound 1 is a sodium phosphate salt compound, contains a structure of three carbon-nitrogen single bonds, has relatively strong alkalinity and is easy to react with water to generate hydrolysis reaction to generate an organic amine compound, and organic amine can continuously react with free acid in the non-aqueous electrolyte to generate neutral inorganic salt; therefore, more effective water removal and acid removal effects are achieved, the effects of reducing side reactions of the non-aqueous electrolyte and protecting the positive electrode material of the sodium-ion battery are further achieved, and the stability of the whole battery system is improved. According to the sodium phosphate salt compound, sodium ions consumed for forming a solid electrolyte membrane ...

Lithium ion battery electrolyte and lithium ion battery

The invention discloses a lithium ion battery electrolyte and a lithium ion battery, the lithium ion battery electrolyte comprises a lithium salt, an organic solvent and an additive, and the additive comprises a compound B shown as a structural formula 1 or a structural formula 2, r1 and R4 are respectively and independently selected from halogen, alkyl of C1-C6, halogen substituted alkyl of C1-C6, alkoxy of C1-C6 or halogen substituted alkoxy of C1-C6; r2, R3, R5 and R6 are respectively and independently selected from oxygen or sulfur; x and Y are respectively and independently selected from carbon, sulfur or phosphorus; c, d, e and f are respectively and independently selected from any one of 0 and 1, c and d are not 1 at the same time, and e and f are not 1 at the same time. The lithium ion battery electrolyte can ensure the high-temperature performance of the lithium ion battery, and meanwhile, the lithium ion battery has good low-temperature performance at-20 DEG C.

Additive manufacturing system suitable for highly humid environment and application of additive manufacturing system

The invention belongs to the related technical field of additive manufacturing, and discloses an additive manufacturing system suitable for a highly humid environment and application of the additive manufacturing system.The additive manufacturing system comprises an air impurity removing and nitrogen making system and a powder closed circulation system which are connected; the air impurity removal and nitrogen generation system is used for filtering and removing impurities in air to generate nitrogen and transmitting the nitrogen to the powder closed circulation system; and the powder closed circulation system takes nitrogen from the air impurity-removing and nitrogen-making system as circulating gas and is used for forming a closed loop of the metal powder, closed circulation is formed in the whole powder supplying and forming process, and additive manufacturing is carried out by taking the metal powder as a raw material. The system can avoid the influence of a large amount of moisture ...

Non-aqueous electrolyte and lithium ion battery

The invention provides a non-aqueous electrolyte and a lithium ion battery. The non-aqueous electrolyte comprises a non-aqueous organic solvent, an electrolyte salt and an additive. The additive comprises a compound A as shown in a structural formula I and a compound B as shown in a structural formula II. In the non-aqueous electrolyte, a compound A is an unsaturated phosphorus-containing compound, and a compound B is a carboxylic ester compound. Through the synergistic effect of the unsaturated phosphorus-containing compound and the carboxylic ester compound, a relatively complete SEI interface membrane can be formed, so that lithium ions have a stable transmission channel in the circulation and storage process. Besides, the carboxylic ester may occupy the position of the SEI film, so that the phosphorus-containing compound is prevented from forming an over-thick SEI film, the thickness of the SEI film is uniform, and the transmission distance of lithium ions is shortened. Therefore, the ...

Guarantee driving safety's intelligent speed -limiting system

... 本实用新型公开种保障行车安全的智能限速系统，包括组与行车路段相对应的限速数据库；个定位器；套油路流量调控装置；油路流量调控装置中设置小型电控流量阀，中央处理器根据车辆位置信息，对应确定该行车路段的限速数据，并解算为油路油量的最大可供应值，指令小型电控流量阀实时调节油路的供油量，通过供油量的变化，实现速度控制。本实用新型利用限速数据对油量进行控制这巧妙的构思，轻而易举实现强制性限速，简单易行。 ...

Prefabricated cabin top cover, prefabricated cabin and prefabricated cabin type transformer substation

The invention provides a prefabricated cabin top cover, a prefabricated cabin and a prefabricated cabin type transformer substation. The prefabricated cabin top cover comprises a left track, a right track, a front half top cover, a rear half top cover and a driving mechanism, wherein the left track and the right track are parallel to each other; the front half top cover and the rear half top cover are foldable plates which are formed by hinging grid plates through rotating shafts; the rear side of the front half top cover abuts against the front side of the rear half top cover, and the front side of the front half top cover and the rear side of the rear half top cover are used for being correspondingly hinged to the top ends of the front enclosure wall and the rear enclosure wall of the prefabricated cabin. The rotating shafts comprise the first rotating shaft and the second rotating shaft, rollers are arranged at the two ends of the first rotating shaft, an angle limiting piece is arranged ...

Pretreatment method and system for iron phosphate mother liquor

The invention belongs to the technical field of advanced treatment and reuse of wastewater, and provides a treatment method of iron phosphate mother liquor. According to the pretreatment method, ammonia water is used for replacing sodium hydroxide, so that introduction of sodium ions is avoided; meanwhile, sulfuric acid replaces hydrochloric acid, so that chloride ions are prevented from being introduced; due to introduction of chloride ions and sodium ions, the burden of subsequent advanced treatment of the pretreated mother liquor is relieved. In addition, Fe < 3 + > in the to-be-treated iron phosphate mother liquor can be converted into Fe (OH) 3 through the first precipitation; a flocculating agent is added, and the flocculating agent can adsorb suspended matters in the first precipitation effluent and plays a role in linking and bridging among suspended matter particles, so that small-particle suspension forms relatively large floccules, and the precipitation speed of the suspended ...

High-pressure gas pipeline flaw detection device

The invention belongs to the technical field of pipeline flaw detection, particularly relates to a flaw detection device for a high-pressure gas pipeline, and provides the following scheme aiming at the problem that an existing flaw detection trolley is prone to skew forward when moving forward: the flaw detection device comprises a mounting seat with a U-shaped groove formed in the upper surface, and the whole mounting seat is of a horizontally-placed prismatic structure; symmetrical inclined planes are reserved on the two sides of the mounting base, symmetrical supporting legs are arranged at the two ends of the two inclined planes correspondingly, and centering adjusting frames which are symmetrical and vertically placed are fixed to the two ends of the U-shaped groove correspondingly. When the device is used and the mounting seat is integrally inclined when the device advances, the mounting seat can quickly return to a horizontal state by component force generated by a counterweight ...

Pipeline inner wall adhesion thing cleaning device

... 本实用新型公开种管路内壁粘连物清理装置，包括：小型伺服电机，伸出轴上带有螺纹；移动环带有滚珠，滑动在小型伺服电机伸出轴的螺纹槽中；至少有两根的长柄，端连接在移动环上，另端延展，延展端带有刮刀，涤纶布覆盖在长柄外侧；同样数量的短柄，用于支撑长柄；小型伺服电机上还装有照明灯、摄像头、控制装置、推拉管。本实用新型通过推拉管将装置放入管路，通过推动和拉动推拉管找到粘连物，开启小型伺服电机，长柄带动涤纶布打开，长柄外端刮下管路内壁的粘连物，粘连物被刮下，收集在斗状的涤纶布内，拉动推拉管退出管路。本实用新型采用物理方法去除管路内壁粘连物，绿色环保；对于管路维护的部门或企业，提高了工作效率和经济效益。 ...

FPGA remote upgrading method and system

The invention discloses an FPGA remote upgrading method and system, the method is applied to FPGA equipment, the FPGA equipment comprises an FPGA module, and an ARM module and a FLASH module which are connected with the FPGA module, and the method comprises the following steps: the ARM module receives an upgrading configuration file sent by an upper computer, and obtains the data length of the upgrading configuration file; the ARM module receives an erasure state returned by the FPGA module, and if the erasure is successful, the ARM module sends a data length to the FPGA module; and the FPGA module receives the upgrade configuration data corresponding to the upgrade configuration file sent by the ARM module, and performs multiple verification on the upgrade configuration data according to the data length in the receiving process and after writing the upgrade configuration data into the FLASH module to obtain a verification result. According to the technical scheme, in the whole upgrading ...

Electrolyte and electrochemical device thereof

The invention provides an electrolyte and an electrochemical device thereof, the electrolyte comprises a lithium salt, an organic solvent and an additive, the additive comprises a compound represented by a structural formula I, and R1-R4 are respectively and independently selected from halogen, substituted or unsubstituted C1-C6 alkyl or nitrile group. According to the electrolyte disclosed by the invention, the compound with an adamantane structure is added as an additive, and the compound can form a stable interface film on the surface of an electrode, so that a positive electrode/electrolyte interface is optimized, the surface activity of a positive electrode is reduced, the oxygenolysis of the electrolyte is inhibited, and the high-temperature and cycle performance of the battery is obviously improved.

厨房用油烟净化器及其所采用的吸附液

The present invention relates to a kitchen fume cleaner and its adopted adsorption liquor. Said invention is developed on the basis of Chinese patent whose number of the patent is ZLO1247325.1 and number of application is 011087536, and is characterized by that said cleaner is a tower body with fume inlet and fume outlet, one layer or several layers of foam generators are fixed in the interior of said tower body. When it is worked, the fume flow is passed through the several small holes of foam generator and adsorption liquor, and can be diffused, adhered and dissolved by foam layer and adsorption so as to implement the goal of cleaning fume.

Polyvinyl butyral modified alkyd resin as well as preparation method and application thereof

The invention belongs to the technical field of coating resin, and discloses polyvinyl butyral modified alkyd resin as well as a preparation method and application thereof. The polyvinyl butyral modified alkyd resin is prepared from the following raw material components: vegetable oil fatty acid, polyhydric alcohol, polybasic acid, polyvinyl butyral, an auxiliary agent and a solvent. The polyurethane primer takes the polyvinyl butyral modified alkyd resin as a base material, after a film is formed, the polyurethane primer has a blocking effect on substances capable of blocking solidification and paint solidification drying of wood, the moisture-proof and waterproof effects are better after the film is formed, and a formed paint film balances the relationship between hardness and flexibility at the same time, so that the paint film has high hardness and flexibility.

Non-aqueous electrolyte solution and alkali metal battery

The invention provides a non-aqueous electrolyte and an alkali metal battery. The non-aqueous electrolyte comprises a non-aqueous organic solvent, an electrolyte salt and an additive, the additive comprises a nitrogen-containing sulfonic acid alkali metal salt represented by a structural formula I and/or a structural formula II, R1, R2 and R3 are independently-R-SO3-M, R is a C1-C6 alkyl group, and M is an alkali metal element. The non-aqueous electrolyte additive comprises nitrogen-containing sulfonic acid alkali metal salt, O and N or N and N in a ring of a compound of the nitrogen-containing sulfonic acid alkali metal salt have a conjugation effect, the nitrogen-containing sulfonic acid alkali metal salt reacts at an electrode/electrolyte interface to form an organic SEI film with better stability, and meanwhile, an N-R-S-M group is deposited at the electrode/electrolyte interface to form an inorganic SEI film rich in M3N, MNxOy and MSxOy components. The double-layer SEI film formed ...

Complete geometric chip breaking method based on longitudinal-torsional composite ultrasonic vibration drilling

The invention discloses a complete geometric chip breaking method based on longitudinal-torsional composite ultrasonic vibration drilling. The method specifically comprises the following steps: step 1, constructing a longitudinal-torsional composite ultrasonic vibration drilling kinematics model; 2, a motion trail equation of two adjacent cutting edges on the cutter in the machining process is constructed; thirdly, a dynamic cutting thickness mathematical model in the longitudinal-torsional composite ultrasonic vibration drilling process is constructed; step 4, constructing a minimum cutting thickness expression; 5, theoretical conditions for achieving complete geometric chip breaking are obtained; 6, a longitudinal-torsional composite ultrasonic vibration drilling experiment is carried out, cuttings under different machining parameter conditions are collected, and the form of the cuttings is observed; and step 7, sorting experimental results to obtain a process parameter matching criterion ...

Valve device with variable temperature sensing capability and thermal mechanical training method thereof

The invention belongs to the related technical field of valves, and discloses a valve device with variable temperature sensing capacity and a thermal mechanical training method.The valve device comprises an upper fixing shell, an upper limiting disc, an upper fixing flange plate, a deformation piece, a lower fixing flange plate, a lower limiting disc and a lower fixing shell which are arranged from top to bottom; the upper fixed shell is connected with the lower fixed shell; the deformation sheet is connected with the upper fixing flange plate and the lower fixing flange plate through studs, and a limiting cylinder is arranged in the middle; the deformation sheet is made of nickel-titanium alloy with two-way shape memory; an upper limiting groove and a lower limiting groove are formed in the upper limiting disc and the lower limiting disc respectively; the two opposite ends of the limiting cylinder penetrate through the upper fixing flange plate and the lower limiting flange plate respectively ...

Non-aqueous electrolyte and lithium ion battery

The invention discloses a non-aqueous electrolyte and a lithium ion battery containing the non-aqueous electrolyte, the non-aqueous electrolyte comprises a lithium salt, a non-aqueous organic solvent and an additive, the additive is a compound as shown in a structural formula 1, and the structural formula 1 of AgxM is shown in the specification, m represents any one of a hexafluorophosphate radical, a tetrafluoroborate radical, an oxalate radical, a perchlorate radical, a nitrate radical, a fluorine anion and a bis (trifluoromethanesulfonate) radical, and x represents the chemical valence state of the anion. The negative ion structure in the additive AgxM can improve the cycle performance of the battery under high voltage, the silver positive ions can optimize the components of a solid electrolyte interface film, a certain degree of adsorption is formed through the adsorption effect of the silver ions, and then the high-temperature cycle performance of the battery is improved. Therefore ...

Non-impact type electric control underground cement slurry releaser

A non-impact type electric control underground cement releaser comprises an upper connector, a cement cylinder, a windowing cylinder, a middle connector, a connecting sleeve, a piston rod, a piston head, a gear motor, a rotating shaft, an energy storage spring, a steel ball, a ball cage, a ball seat and a lower connector, and the windowing cylinder, the middle connector, the connecting sleeve and the lower connector are connected to form an outer shell. The piston rod is connected with the piston head, the gear motor, the rotating shaft, the ball cage and the ball seat to form a mandrel body, the mandrel body is connected into the outer shell through the steel ball connecting structure, the steel ball connecting structure is controlled to be loosened through the gear motor, the mandrel body can freely fall relative to the outer shell, and therefore the opening window is opened. Cement paste carried in a cement cylinder is poured to a set bridge plug under a well, non-impact filling is achieved ...

Non-aqueous electrolyte and sodium ion battery

The invention provides a non-aqueous electrolyte and a sodium ion battery. The non-aqueous electrolyte comprises a non-aqueous organic solvent, a sodium salt and an additive, wherein the additive comprises a compound I; the compound I contains a cyclic ether bond containing hydroxyl, and the structure is unstable and is easy to generate a ring-opening reaction, so that a stable and uniform interface protection film can be generated on the surface of the positive electrode material at a relatively low oxidation potential, the reaction of an electrolyte and the positive electrode material at a high voltage is inhibited, the problem of gas expansion of the sodium ion battery is improved, and the service life of the sodium ion battery is prolonged. And the stability of an electrode/electrolyte interface is maintained. The structure contains imidazole nitrogen heterocyclic rings, on one hand, imidazole cations have high coulomb force, the ionic conduction performance of the interface protection ...

Intelligent welcome alarm

The intelligent welcome alarm comprises a host, a display screen, a camera and a plurality of loudspeakers, the upper end of the host is fixedly connected with a mainboard, the side wall of the host is provided with a mechanism groove, the inner bottom of the mechanism groove is slidably connected with a sliding block, the upper end of the sliding block is fixedly connected with a cleaning brush, and the lower end of the cleaning brush is fixedly connected with the display screen. A driving device capable of driving the sliding block to do reciprocating rectilinear motion in the horizontal direction is installed in the mechanism groove, and an inlet is formed in the side wall of the main machine. By arranging the driving device, in rainy days, due to the fact that shoes of a guest occupy sludge, the guest can stretch the foot into the mechanism groove through the inlet and place the foot on the foot pad on the premise that the shoe is not taken off, the driving motor drives the reciprocating ...

Rod throwing and releasing device of underground over-drill-bit logging instrument and using method of rod throwing and releasing device

The invention discloses a rod throwing and releasing device of an underground through-drill-bit logging instrument and a using method of the rod throwing and releasing device, and belongs to the technical field of through-drill-bit logging. According to the method, through the arrangement of a releasing assembly, a rod throwing assembly, a supporting short section, a drilling tool hanging short section and an instrument hanging short section, the mode that the through-drill-bit logging instrument is arranged in a drilling tool drill rod in advance is adopted, under the protection of the drilling tool drill rod, the through-drill-bit logging instrument is sent to a well, and at a logging station, the through-drill-bit logging instrument is released into an open hole from a TBL drill bit by throwing the rod throwing assembly; logging operation is carried out; after the logging operation is completed, a fishing tool is used for fishing the drill bit logging instrument out of a well from a ...

Support digital flat shunting system of handover

... 本实用新型涉及一种支持越区切换的数字平面调车系统，包括数字平调区长台、平面调车机控器、调度计划机、局域网服务器和平面调车手持台，数字平调区长台分别与平面调车机控器、平面调车手持台、局域网服务器双向连接，调度计划机与局域网服务器双向连接，所述平面调车机控器与平面调车手持台双向连接。有益效果是：该系统可以实现当非本区域调度作业车越区作业时，自动切换频点，实时的配合非本区域调度作业车在本区域的调车作业。解决了以往增配非本区域调度所需设备所造成的人力物力的浪费问题。本实用新型有利于平面调车作业的跨区域管理，大大提高了越区调车作业的效率，适用范围广，具有极大的推广价值。 ...

Bi-element-containing magnesium alloy powder for selective laser melting and application of Bi-element-containing magnesium alloy powder

The invention belongs to the field of selective laser melting (SLM) rapid prototyping, and discloses Bi-element-containing magnesium alloy powder for selective laser melting and application of the Bi-element-containing magnesium alloy powder for selective laser melting, and the Bi-element-containing magnesium alloy powder for selective laser melting comprises the following components in percentage by mass: 8.5-9.0% of Al element, 0.5-1% of Zn element, 1-2% of Bi element, 0.2-0.4% of Mn element, less than or equal to 0.05% of impurities and the balance of Mg element. The specific composition of the magnesium alloy powder for selective laser melting is improved, a proper amount of Bi element is introduced into the magnesium alloy, alloying of the magnesium alloy is promoted in cooperation with the SLM process, and an SLM magnesium alloy formed part obtained correspondingly has better tensile strength and yield strength and better thermal stability of the formed part performance.

Water film forming device and method for wet type electrostatic dust collector

The invention belongs to the field of water film forming, particularly relates to a water film forming device for a wet type electrostatic dust collector and a method thereof, and aims at solving the problems that a water film forming device in the current market is single in function and inconvenient to clean. A dust removal box is fixedly arranged at the upper end of the supporting frame, a fixing frame is fixedly arranged on one side of the dust removal box, a water storage box is arranged at the upper end of the fixing frame, a liquid outlet pipe is fixedly arranged on one side of the water storage box, a machine box is fixedly arranged in the dust removal box, and a connecting box is fixedly arranged at the front end of the machine box. According to the device, the arc-shaped water film structure capable of being automatically formed, the structure capable of driving the arc-shaped circular plate to rotate forwards and backwards and the structure capable of washing the middle of the ...

Non-aqueous electrolyte and lithium ion battery thereof

The invention provides a non-aqueous electrolyte and a lithium ion battery thereof, the non-aqueous electrolyte comprises a lithium salt, an organic solvent and an additive, the additive comprises a compound A shown as a structural formula I, a structural formula II, a structural formula III or a structural formula IV, and R1-R4 are independently selected from alkylene or heterocycle-containing groups; r < 5 > to R < 14 > are respectively and independently selected from hydrogen and substituted or unsubstituted C1-C6 alkyl. When the non-aqueous electrolyte provided by the invention is applied to the lithium ion battery, the additive compound is of a double-bond-containing cyclic ether structure, and the structure has relatively low oxidation potential, so that the non-aqueous electrolyte has relatively good cycle performance, high-temperature storage performance, relatively low volume expansion rate and relatively excellent low-temperature performance.

Primer probe composition, kit and detection method for detecting mycobacterium tuberculosis and nontuberculous mycobacteria

The invention belongs to the technical field of biology, and particularly relates to a primer probe composition, a kit and a detection method for detecting mycobacterium tuberculosis and nontuberculous mycobacteria. The composition 1 for detecting mycobacterium tuberculosis comprises: a nucleotide sequence as shown in SEQ NO: 1-3; the composition 2-4 for detecting the nontuberculous mycobacteria comprises a nucleotide sequence as shown in SEQ NO: 4-12. Dual RAA-LFD detection is adopted, and differential diagnosis of four common mycobacteria including mycobacterium tuberculosis, mycobacterium avium complex, Mycobacterium kansasii and Mycobacterium abscessus is achieved through one-time reaction. The LFD is introduced on the basis of the dual RAA to carry out rapid, accurate and visual detection, so that the detection cost is greatly reduced, and the detection time is shortened. Expensive machines are not needed, amplification is performed at constant temperature, result interpretation is ...

Multi-section climbing flue gas pipeline

The invention provides a multi-section climbing flue gas pipeline which comprises a supporting tower, a supporting mounting frame is arranged in the supporting tower, a flue gas pipeline is arranged in the supporting mounting frame, a climbing pipeline is arranged on one side of the flue gas pipeline, the climbing pipeline is communicated with a smoke exhaust device and the flue gas pipeline, and a positioning assembly is arranged on the outer side of the flue gas pipeline. The flue gas pipeline comprises a bottom pipeline, lengthened pipelines and a top pipeline, and the lengthened pipelines are arranged at the top of the bottom pipeline. By means of the positioning plates obliquely arranged on the inner sides of the supporting beams, when a lengthened pipeline and a top pipeline are hoisted and fall to be assembled, the lengthened pipeline and the top pipeline can slide downwards on the arc faces of the inner sides of the positioning plates, so that the lengthened pipeline corresponding ...

Street furniture intelligence perception system

... 本实用新型属于市政设施信息化领域，特别涉及一种市政设施智能感知系统。它包括市政设施采集器、市政设施中继器和服务器，市政设计采集器用于采集市政设施的相关信息，并把采集到相关信息传输至市政设施中继器，市政设施中继器用于接收市政设施采集器发送的相关信息，进行处理后发送到服务器，服务器用于对市政设施的运行状态进行实时监控。 ...

A drips circulating device for interior laparoscopic surgery

... 本实用新型涉及医疗辅助器械，具体为一种用于内腔镜手术的收集液循环装置；包括桶体(1)；所述的桶体(1)由底壁、侧壁组成，其防护板(2)与桶体(1)的底壁、侧壁形成了一封闭腔体(3)，且封闭腔体(3)内设有循环泵体(4)；所述的循环泵体(4)通过管道分别连接有进液喷嘴(5)、出液喷嘴(6)，且出液喷嘴(6)离桶体底壁的高度高于进液喷嘴(5)离桶体底壁的高度。其有益效果在于：其防止了液体沉淀、凝固，使桶内液体的每个层次的成分均相同，其有利于术者对桶内液体进行取样及检测数据准确，提高了手术的安全性。 ...

Electrolyte for lithium ion battery and lithium ion battery containing electrolyte

The present invention discloses an electrolyte for a lithium ion battery and a lithium ion battery containing the electrolyte, the electrolyte comprises a lithium salt, an organic solvent and an additive, the additive is a compound represented by a structural formula 1 or a structural formula 2, R1 to R2 are independently selected from hydrogen, halogen, substituted or unsubstituted C1-C6 alkyl, and substituted or unsubstituted C1-C6 unsaturated bonds, and m and n are independently selected from 0 or 1. The additive disclosed by the invention adopts a compound as shown in a structural formula 1 or a structural formula 2, a stable interfacial film can be formed on an interface by virtue of a cyclic sulfonic acid structure, the film has a good lithium ion conduction channel, collapse of the lithium ion channel in the circulation process is avoided, and the circulation and low-temperature performance is improved; side chain structures such as C = O and S = O are introduced, the stability of ...

Tandem type multi-stage waste gas tower

The invention provides a tandem type multi-stage waste gas tower which comprises a plurality of tower bodies which are sequentially connected in series into a whole, a first spraying frame, a supporting assembly, a second spraying frame and a second filler supporting cover are sequentially arranged in the tower body from top to bottom; a second feeding opening is formed in the side wall of the material guiding main pipe, the second feeding opening is located above the second filler supporting cover, and the outer portion of the second feeding opening is blocked by a second material opening blocking assembly; the bottom end of the material guiding main pipe downwards extends out of the second filler supporting cover, and an outlet of the material guiding main pipe points to the third overhaul window. When the filler is discharged, the traction assembly drives the first material opening blocking assembly and the second material opening blocking assembly to be opened, so that the spherical ...

Intelligent security and protection management and control method and intelligent security and protection management and control device

The invention discloses an intelligent security and protection control method and device, and the device comprises a camera, the bottom end of the camera is fixedly provided with an induction lamp, and the outer surface of the induction lamp is provided with a light source refraction assembly. Through the light source refraction assembly, the outer side of a shooting part of the camera can be supplemented with light, so that the camera can shoot a person conveniently, and the safety of the person is improved. The shooting difficulty of the camera to personnel is reduced, the problem that in the prior art, a light source irradiated by an induction lamp directly irradiates the eyes of the personnel, and consequently the eyes of the personnel feel uncomfortable is solved, the personnel and the camera can be opposite conveniently, the structure can be disassembled conveniently, the disassembling time is shortened, and the working efficiency is improved. And meanwhile, the distance between the ...

Method for repairing metal damage by composite material and monitoring structure after repairing

The invention provides a method for repairing metal damage through a composite material and monitoring a repaired structure, and relates to the technical field of structure monitoring. According to the method, different service environments and monitoring requirements can be met by adjusting the proportion of different nanometer conductive materials, a micro-nano sensor is arranged and controlled in a to-be-monitored area in the process of repairing a metal damage area through a composite material, and the sensor is connected with an information collector through a wire. The sensors can convert the service condition of a to-be-detected area into digital signals to be output, the information collector processes the digital signals output by the sensors to obtain danger indexes of different areas, strain and debonding states of the different areas are obtained by comparing the danger indexes of the different sensors, and timely early warning is carried out for structural repair failure. The ...

Limiting device of automatic tin soldering equipment

The utility model discloses a limiting device of automatic tin soldering equipment, which relates to the technical field of limiting devices and comprises a base, a fixing seat is fixedly mounted on the outer surface of the upper end of the base, a sliding groove is formed in the middle of the interior of the fixing seat, and first cylinders are fixedly mounted at two ends of the fixing seat. A sliding seat is fixedly connected to the position, located in the sliding groove, of one end of the first air cylinder, a limiting column is fixedly installed at the upper end of the sliding seat, the limiting column is composed of a limiting sleeve and a limiting rod, and the limiting rod is movably installed at the upper end of the limiting sleeve. The height of the limiting device can be conveniently adjusted according to different use requirements through the telescopic limiting column, so that the limiting device is convenient to use during use, and different workpiece clamps can be conveniently ...

Plate-type cathode and anode structure and wet-type electric dust remover

The invention relates to the technical field of environmental protection and dust removal, in particular to a plate type cathode and anode structure and a wet type electric precipitator, the plate type cathode and anode structure comprises at least one anode plate and at least one cathode wire which are used for forming an electric field channel, and the anode plate and the cathode wire are arranged in parallel. Water sprayed out of the flushing head can flow downwards along the multiple water channels, flowing of the water is limited through the water channels, the situation that the flowing direction of the water is changed when the water encounters hindrance during flowing is prevented, meanwhile, the effect of saving water resources is achieved, and the water sprayed out of the flushing head is cyclically twisted to be accurately sprayed towards the water channels; and meanwhile, the movable wrapping plate can wrap water which is bounced and splashed due to impact on the anode plate ...

Contextual spelling correction (CSC) for automatic speech recognition (ASR)

A novel solution for speech recognition provides contextual spelling correction (CSC) for automatic speech recognition (ASR). Disclosed examples include receiving an audio stream; performing ASR processing on the audio stream to generate an ASR hypothesis; receiving a context list; and performing spelling correction based at least on the ASR hypothesis and the context list to produce an output text sequence. A contextual spelling correction (CSC) model is used over the ASR model, which eliminates the need to change the original ASR model. This permits runtime user customization based on context data, even for large context lists. Some examples include filtering an ASR hypothesis for an audio stream, and determining whether spelling correction for the ASR hypothesis is to be triggered based at least on the ASR hypothesis filtering. Some examples include generating text-to-speech (TTS) audio using a pre-processed transcription with contextual phrases to train a CSC model.

Electrolyte and lithium ion battery thereof

The invention provides an electrolyte and a lithium ion battery thereof, the electrolyte comprises a lithium salt, an organic solvent and an additive, the additive comprises a compound represented by a structural formula I, a structural formula II or a structural formula III, in the formula, R1-R4 are independently selected from H and substituted or unsubstituted C1-C6 alkyl; x is selected from heteroatoms or groups formed by heteroatom-containing polyatoms. The additive in the electrolyte is the adamantane derivative, the adamantane derivative can form a stable lithium nitride-rich interfacial film on the surface of the positive electrode, and the film has good lithium ion conduction capability, so that the high-temperature cycle and low-temperature discharge performance of the lithium ion battery is relatively good.

Non-aqueous electrolyte and lithium ion battery containing same

The invention discloses a non-aqueous electrolyte and a lithium ion battery, the non-aqueous electrolyte comprises a lithium salt, a non-aqueous organic solvent and an additive, the additive is a compound represented by a structural formula 1, and R1, R2 and R3 are respectively and independently selected from one of alkyl, alkynyl, alkenyl, amido, nitrile and alkylamine. The additive enables the non-aqueous electrolyte to keep stable under continuous high voltage, contains a cyano functional group, cyano carries electrons, has electron conductivity, promotes electron transfer under a low temperature condition, further improves the low-temperature discharge performance of the lithium battery, and contains a positive and negative valence structure under a high-temperature storage condition, so that the non-aqueous electrolyte can be stably stored at a high temperature. When a solid electrolyte interface film is formed, cobalt ions can be adsorbed, the functions of adsorbing and transmitting ...

Polynitrile compound, and non-aqueous electrolyte and lithium ion battery thereof

The invention provides a polynitrile compound, a non-aqueous electrolyte thereof and a lithium ion battery. The structural formula of the polynitrile compound is shown as a structural formula I or a structural formula II. Wherein R1 to R2 are respectively and independently selected from halogen, halogen substituted C1-C6 alkyl, a group containing a halogen substituted sulfonate group, a group containing a halogen substituted sulfonyl group or a group containing a halogen substituted phosphonate group. The polynitrile compound is used as an electrolyte, a stable interfacial film can be formed on an interface of a material, the film has a good lithium ion conduction channel, collapse of the lithium ion channel in the circulation process is avoided, and the circulation and low-temperature performance is improved. Besides, a side chain functional group structure at least containing halogen is introduced, so that a relatively thin inorganic SEI film can be formed, sites of the SEI film can be ...

Non-aqueous electrolyte and sodium ion battery

The invention provides a non-aqueous electrolyte and a sodium ion battery. The non-aqueous electrolyte comprises a non-aqueous organic solvent, an electrolyte salt and an additive, wherein the additive comprises a compound I and/or a compound II. The compound I and the compound II have sodium-sulfur bonds, the structure is very stable, and a solid electrolyte interface (CEI) film can be formed on the surface of an anode through reduction, so that the high-temperature performance of the battery is improved. The nitrogen-containing five-membered heterocyclic compound can be used as a stabilizer of an electrolyte salt (especially sodium hexafluorophosphate) in the electrolyte, so that the side reaction of the battery caused by electrolyte decomposition is reduced, and the stability of the electrolyte is improved. The two functional groups are bonded together through a carbon-sulfur covalent bond C-S, soluble sulfides are not easy to generate in the discharge process, and the dissolving capacity ...

Intelligent video monitoring device based on cloud storage

An intelligent video monitoring device based on cloud storage disclosed by the present invention comprises a support and a camera, the back surface of the camera is connected with a connecting line, the top end of the support is fixedly provided with a supporting alignment assembly, the supporting alignment assembly comprises a positioning piece, a T-shaped column, a supporting strip and a hook, the positioning piece is fixedly installed at the top end of the support, and the T-shaped column is fixedly installed at the top end of the support. The camera support device has the beneficial effects that the camera can be conveniently supported through the support alignment assembly, and the support difficulty of the camera is reduced, so that the stability of the camera after adjustment is improved, the camera support device has relatively high flexibility and adaptability in the aspect of up-and-down adjustment, and meanwhile, the anti-seismic property of the camera after installation is improved ...

Multi-path movable medium data real-time backup and identification method based on LVM

The invention discloses a multi-path movable medium data real-time backup and identification method based on an LVM. The method comprises the steps that N local storage media are created into N physical volumes respectively in advance, a storage pool is created for the N physical volumes, logical volumes are divided on the storage pool to be used by an application server, when data backup is needed, K mobile storage media inserted into the storage server are created into the physical volumes, and the physical volumes are stored in the storage pool. According to the set backup parameters, adding the logical volume to be backed up into a storage pool to which the logical volume to be backed up belongs, then synchronizing the logical volume to be backed up into K mirror image volumes through data, and appointing the positions of the mirror image volumes in the storage pool; converting the mirror image volume into a linear volume, and separating the linear volume from the mobile storage medium ...

Array type photovoltaic power station structure

The invention relates to the technical field of photovoltaic equipment, and discloses an array type photovoltaic power station structure which comprises a supporting frame, a mounting plate is fixedly connected to the outer wall of the top of the supporting frame, weight reduction grooves distributed at equal intervals are formed in the top of the mounting plate, and an upper positioning rod and a lower positioning rod are arranged at the top of the mounting plate. Photovoltaic panels are clamped in the upper positioning rod and the lower positioning rod, and a lifting assembly used for driving the upper positioning rod to vertically move and a rotating assembly used for driving the lower positioning rod to do circular motion are arranged at the top of the mounting plate. According to the array type photovoltaic power station structure, a worker can hold and rotate a connecting block in order to adjust the lighting angle of a photovoltaic panel to be optimal before mounting the photovoltaic ...

Electrolyte and lithium ion battery thereof

The invention provides an electrolyte and a lithium ion battery thereof. The electrolyte comprises a lithium salt, an organic solvent and an additive. The additive comprises a compound A as shown in a structural formula I, a structural formula II or a structural formula III, and in the structural formula I, R1-R2 are independently selected from halogen and substituted or unsubstituted C1-C6 alkyl; r < 3 > to R < 4 > are selected from substituted or unsubstituted C1-C6 alkyl groups; r5 is selected from trimethylsilyl and substituted or unsubstituted C1-C6 alkyl groups; x is selected from S; y is selected from O; z is selected from O or S; m is selected from alkali metal elements. The additive in the electrolyte has a P = S or P = O structure, the two structures can form a stable interfacial film on an interface, and the film has good lithium ion conduction capability, so that the high-temperature cycle and low-temperature discharge performance of the lithium ion battery is relatively good ...

Sb-element-containing magnesium alloy powder for selective laser melting and application of Sb-element-containing magnesium alloy powder

The invention belongs to the field of selective laser melting rapid prototyping, and discloses Sb element-containing magnesium alloy powder for selective laser melting and application of the Sb element-containing magnesium alloy powder for selective laser melting, and the Sb element-containing magnesium alloy powder for selective laser melting comprises the following components in percentage by mass: 8.5-9.5% of Al element, 0.5-0.9% of Zn element, 0.2-0.4% of Mn element, 0.1-0.5% of Sb element, less than or equal to 0.1% of impurities and the balance of Mg element. The specific composition of the magnesium alloy powder for selective laser melting is improved, the Sb element is introduced into the magnesium alloy, and the SLM process is matched, so that an SLM magnesium alloy formed part obtained correspondingly has the characteristics of high yield strength and prolonged creep life, the strength of the magnesium alloy formed part is effectively improved, and the application of the magnesium ...

PROTECTION CIRCUIT, BATTERY PACK, VEHICLE AND CONTROL METHOD

The invention discloses a protection circuit, a battery pack, a vehicle and a control method. The protection circuit comprises a sampling module, a comparison circuit and a control circuit. The sampling module is used for collecting a current current signal of a main loop of the battery pack; the comparison circuit is electrically connected with the sampling module and is used for comparing the current signal with a first preset current value and outputting an enable signal under the condition that the current signal is greater than the preset current value; and the control circuit is used for controlling the explosion circuit to explode a fuse arranged on the main loop according to the enable signal so as to cut off the main loop. According to the protection circuit, the comparison circuit compares the current current signal acquired by the sampling module with the set first preset current value, and then outputs the enable signal when the current current signal is greater than the first ...

A municipal or fire by using a line camera

... 本实用新型公开一种市政或消防用管路摄像机，包括壳体、支脚、内管、泵、内管单向阀、支脚单向阀、橡胶袋、摄像头；壳体头、尾端各密封连接橡胶袋，橡胶袋内装有流体；壳体在靠近头、尾端各设置一组由内向外伸缩性的支脚；壳体里部设置一内管，内管两端各设置一泵，泵连通橡胶袋与内管及支脚；内管与泵的连接处设置内管单向阀，支脚与泵的连接处设置支脚单向阀；摄像头设置于橡胶袋的外部。本实用新型头部和尾部的支脚进行循环伸展收缩动作，并且控制内管和壳体进行循环收缩舒展动作，最终推动这种管路摄像机向前移动。 ...

Grey wolf algorithm hybrid optimization method based on reverse learning strategy

The invention discloses a grey wolf algorithm hybrid optimization method based on a reverse learning strategy, which belongs to the field of software testing, and comprises the following steps of: aiming at the problems that a grey wolf algorithm is easy to fall into local optimum and insufficient global search capability, firstly, increasing local search and global search capability of the algorithm; the updating strategy of the elite individual position in the wolf pack is optimized, the Levy flight strategy is adopted to generate random jump in the wolf pack searching process, and the searching range is expanded; then, the algorithm is further prevented from falling into local optimum, a reverse learning strategy is adopted for wolf pack individuals, reverse learning is adopted for grey wolf elite individuals and worst grey wolf individuals in the search process, and wolf pack diversity is increased; and finally, in order to balance local search and global search capabilities of the ...

Radio frequency power regulation circuit applied to digital interphone and implementation method

The invention relates to a radio frequency power regulation circuit applied to a digital interphone and an implementation method. The radio frequency power adjusting circuit comprises a comparator circuit, a subtractor circuit, a power output circuit, a control unit, a frequency synthesis circuit and a digital-to-analog conversion circuit, the control unit transmits a radio frequency power signal by controlling the frequency synthesis circuit, when output power is increased, drain current of two NMOS tubes at the output end is increased, voltage BAT-T is reduced, and the output power is increased. Meanwhile, the voltage BAT is the power supply voltage, so that the output voltage of the comparator is increased, and the DSP controls the digital-to-analog conversion circuit to output a certain voltage value, so that the voltage difference between the two-stage input ends of the subtractor is reduced, the output voltage of the subtractor is reduced, the voltage of the grid electrode of the ...

Vanadium ore roasting shaft kiln and roasting method

The invention belongs to the technical field of vanadium ore smelting, and particularly relates to a vanadium ore roasting shaft kiln and a roasting method.The vanadium ore roasting shaft kiln comprises a vertical kiln body and a temperature control device for monitoring the temperature of a roasting chamber in the kiln body; the kiln body comprises a plurality of groups of kilns which are communicated with one another; a smoke channel is arranged at the top of each kiln, an induced draft fan is installed on each smoke channel, a cooling chamber is arranged at the bottom of the kiln body, a discharging chain plate is installed on each cooling chamber, a kiln door communicated with a feeding channel is arranged on the wall, close to the top, of the kiln body, and the input end of each feeding channel is connected with a distributing machine. A roasting chamber is arranged in the kiln body between the furnace door and the cooling chamber; the outer side of the kiln body around the roasting ...

Vibration reduction and isolation construction method for subsection differentiation blasting of tunnel with ultra-small clear distance

The invention relates to the technical field of tunnel excavation, in particular to an ultra-small clear distance tunnel subsection differentiation blasting vibration reduction and isolation construction method which comprises the steps that S1, a preceding hole and a preceding hole primary support are constructed; s2, a vibration isolation pipe is buried in the side wall of the first hole, and construction of a second lining of the first hole is conducted; s3, vibration reduction holes are drilled in the backward hole, and the vibration reduction holes form a vibration reduction hole group belt; dividing the posterior hole into an excavation area and a blasting area along the vibration reduction hole group belt; s4, dividing the blasting area into an upper bench blasting area, a middle bench blasting area and a lower bench blasting area; the excavation area is divided into an upper step excavation area, a middle step excavation area and a lower step excavation area; s5, an upper step blasting ...

Driving cone shaft on-line measuring device and method

The invention provides a driving cone shaft on-line measuring device and method. The driving cone shaft on-line measuring device comprises an outer diameter dial indicator, a positioning block, a measuring bar and a measuring support. The measuring support is a trapezoid support, the bottom of the measuring support is open, and a measuring space used for containing a measured workpiece is arranged in the measuring support. The two measuring rods are fixedly mounted on the inner walls of the two sides of the measuring bracket in the measuring space respectively; the positioning block is connected to the front end of the measuring support, and a ball is arranged at the front end of the positioning block; the external diameter dial gauge is installed in a positioning hole in the top of the measuring support, a set screw is installed on the measuring support through threads, and a nut is installed on the set screw. According to the technical scheme, the problem that time is consumed due to ...

Non-aqueous electrolyte and lithium ion battery containing same

The invention discloses a non-aqueous electrolyte which comprises a lithium salt, a non-aqueous organic solvent and an additive, the additive is a compound as shown in a structural formula 1 and/or a structural formula 2, R1, R2, R3, R4 and R5 are independently selected from alkyl with the carbon atom number of 1-4 and hydrogen atoms, and X is selected from one of O, S, N and halogen. The additive contains intracyclic double bonds and adjacent ester groups, in a high-voltage charged state, the structural substance is preferentially subjected to a ring-opening reaction to form double-bond free radicals, the free radicals are easily subjected to a polymerization reaction with the adjacent ester groups to form net-shaped substances with different polymerization degrees, the net-shaped substances are attached to the interface position of the solid electrolyte, and due to the net-shaped structures of different polymers, the solid electrolyte interface position of the solid electrolyte is changed ...

Jet fire control axe

... 本实用新型公开一种喷气式消防斧，用于消防灭火。包括斧头、斧柄、喷气控制部分、接头部分、储气部分、接头开闭控制部分。本实用新型斧头可以向外喷气，储气部分可以更换，能方便的用于消防人员的救援工作，避免化学燃烧障碍物粘连与消防斧上，并且避免了火苗的进一步蔓延，同时消防斧上喷出的气体冷却燃烧物并且隔绝氧气，对于消防员的消防工作具有非常大的帮助作用，对于维护整个社会的人民生命财产安全具有重要意义。 ...

Composite material rubber mechanical mixing connection joint with self-monitoring function and manufacturing method thereof

The invention discloses a composite material rubber mechanical mixing connection joint with a self-monitoring function and a manufacturing method thereof, and belongs to the field of functional composite materials and structural health monitoring. The connecting joint is formed by mechanically connecting and fixing a plurality of composite materials, a connecting adhesive layer is filled at the joint of two adjacent composite materials, and an MXene/CNT sensor is arranged in the connecting adhesive layer. The MXene/CNT sensor is used for monitoring the curing degree of reaction cementing, preparation monitoring of the connecting joint is achieved, after an adhesive is cured, the sensor and the connecting structure form an integral structure, the sensor continues to provide a health monitoring function in the service process of the connecting structure, and the service life of the connecting structure is prolonged. The damage can be automatically detected when the crack of the composite ...

Optimization design method of torpedo launching tube front cover opening and closing device

The invention discloses an optimization design method of a torpedo transmitting tube front cover opening and closing device. The optimization design method comprises the steps that Pro/E is used for part design, assembly and motion interference inspection; aiming at the minimum impact of the device when the device runs to a specified position as an optimization target, analyzing kinematics parameters of the device; establishing an optimization analysis mathematical model; the influence of the four design parameters on a device mechanism is analyzed one by one, the sensitivity and the optimal value of the single design parameter are obtained, and then final optimization analysis is conducted through ADAMS/Insight. The method has the beneficial effects that the mechanism designed by adopting the method is reasonable and feasible, the established model is accurate, and the impact speed of the driven rod can be obviously reduced, so that the impact and noise are reduced.

Composite antibacterial agent as well as preparation method and application thereof

The invention discloses a composite antibacterial agent as well as a preparation method and application thereof, and relates to the technical field of antibacterial agents. The antibacterial agent comprises chlorhexidine and cucurbit [7] uril. In the antibacterial agent of the present invention, CHX is encapsulated in a cavity of CB [7] to form a 1: 3 host-guest complex (CHX-3CB [7]), and this supramolecular complex shows higher antibacterial activity than when CHX is used alone. A UV-vis spectrum shows that introduction of CB [7] promotes protonation of N atoms on CHX, and stronger ionic interaction with phospholipid is caused, so that destruction of a bacterial membrane is enhanced. A scanning electron microscope (SEM), surface zeta-potential and internal and external membrane integrity determination also show that the introduction of CB [7] intensifies the rupture of the membrane. In addition, by forming a host-guest complex with CB, the cytotoxicity and irritation of CHX are reduced ...

Swash plate plunger type hydraulic pump

The invention relates to the field of hydraulic pumps, in particular to a swash plate plunger type hydraulic pump. The swash plate plunger type hydraulic pump comprises a shell and a plunger, the shell is provided with a liquid outlet channel communicated with a plunger cavity, a liquid outlet one-way valve is further arranged in the liquid outlet channel, the shell is further provided with a liquid inlet channel communicated with the plunger cavity, the plunger comprises a solid section, and the solid section is matched with the plunger cavity to be used for separating the plunger cavity from an oil cavity. The two ends of the liquid inlet channel communicate with the oil cavity and the plunger cavity correspondingly, and a liquid inlet one-way valve is arranged in the liquid inlet channel. The liquid inlet channel communicated with the plunger cavity is formed in the shell, so that the oil inlet position is changed from the plunger to the shell, and the oil cavity and the plunger cavity ...

Dual-frequency-band same-different-frequency train dispatching wireless relay station equipment and implementation method

The invention discloses dual-band same and different frequency train dispatching wireless relay station equipment and an implementation method. The device comprises an antenna interface which is used for being connected with an external antenna to realize transmitting signal input of a transfer station receiving terminal device and transfer transmitting signal output, and an electrically tunable duplexer which is used for gating the antenna interface and a broadband receiving filter or a narrowband receiving filter and gating the antenna interface and a narrowband transmitting filter or the broadband transmitting filter. The channel unit is used for carrying out filtering amplification processing and intermediate frequency digital processing on a radio frequency signal, the power supply unit and the power supply interface are used for carrying out ripple suppression filtering and voltage stabilization on a power supply signal and then supplying power, and the baseband unit and the signal ...

Separation method for improving different types of bacteria in soil sample

The invention provides a separation method for improving different types of bacteria in a soil sample, and belongs to the technical field of biology. According to the method, the bacteria 16S rRNA gene in the soil is fragmented by adopting a PCR (Polymerase Chain Reaction) combined enzyme digestion method, and a sequenced bacterial strain is obtained through preliminary screening according to different 16S rRNA gene fragment map distribution information, so that the sequencing quantity in a bacteria separation and identification process is remarkably reduced, the phenomena of repeated sequencing, missing detection and the like can be effectively avoided, and the detection accuracy is improved. Meanwhile, the detection ratio of different types of bacteria is increased from 41.09% of a conventional method to 84.13% of a PCR-enzyme digestion method, and the detection rate of different types of bacteria is remarkably increased.

Non-aqueous electrolyte and lithium ion battery

The invention provides a non-aqueous electrolyte and a lithium ion battery. The non-aqueous electrolyte comprises a non-aqueous organic solvent, an electrolyte salt and an additive, wherein the additive comprises a compound A; the structural formula of the compound A is shown as a structural formula I, a structural formula II or a structural formula III. The compound A in the non-aqueous electrolyte contains connected cyclic sulfoximine and cyclic imide structures, and a stable interfacial film can be formed on an interface. Firstly, the membrane is provided with a good lithium ion transmission channel, and channel collapse cannot be generated in the circulation process, so that the circulation and low-temperature performance can be improved; and secondly, by forming a stable interfacial film, a positive electrode/electrolyte interface can be optimized, the surface activity of the positive electrode can be reduced, and the oxygenolysis of the electrolyte can be inhibited, so that the high ...