279results about How to "Avoid circulation" patented technology

The invention provides a high-voltage direct-current bus direct-hanging energy storage power grid strength support type device, which is connected with a high-voltage alternating-current bus and comprises a plurality of cascaded direct-current sub-modules, a high-voltage direct-current bus and a converter valve, each direct current sub-module comprises an energy storage unit cluster; outgoing lines at two ends of the plurality of cascaded DC sub-modules are connected with a high-voltage DC bus, and the other side of the high-voltage DC bus is connected with a converter valve; the direct current sub-modules convert initial low-voltage direct current output by the energy storage unit cluster into low-voltage direct current needed by power grid strength support, the multiple cascaded direct current sub-modules convert the low-voltage direct current into high-voltage direct current and output the high-voltage direct current to the high-voltage direct current bus, and the high-voltage direct current output by the high-voltage direct current bus is inverted through the converter valve. Stable voltage support is provided for the high-voltage alternating-current bus; isolation of the energy storage unit cluster and the high-voltage alternating-current bus is achieved through the high-voltage direct-current bus, and the influence of reactive power fluctuation of a power grid on energy storage elements is reduced.

The utility model relates to an expansion fistula plugging support and an implantation system, the expansion fistula plugging support is used for plugging a fistula opening formed between a first cavity and a second cavity which are adjacent, and the expansion fistula plugging support comprises a first fixing support, a second fixing support and a blocking film. The first fixing support is in a hollow tube shape and is provided with a near end, a far end and a first tube cavity extending between the near end and the far end in the axial direction, and the first fixing support is arranged in the first cavity channel. The second fixing support is arranged in the orificium fistulae and the second cavity, the second fixing support is provided with a first end and a second end, and the first end is connected with the first fixing support. The blocking film is arranged on the first fixing support or / and the second fixing support and used for blocking the orificium fistulae.

The invention discloses an intelligent air circulation fan, and relates to the technical field of circulation fans, the intelligent air circulation fan comprises an outer cylinder mechanism, the outer cylinder mechanism comprises an outer cylinder, one port of the outer cylinder is expanded outwards, the lower side of the outer cylinder is provided with a support assembly, the other port of the outer cylinder is in butt joint with a main cylinder mechanism, the main cylinder mechanism comprises a main cylinder, and the main cylinder is fixedly connected with the outer cylinder through a flange; an impeller assembly is arranged in the main cylinder mechanism, a framework assembly is arranged in an externally-expanded port of the outer cylinder and comprises a hollow water bin, bin columns used for supporting are evenly and fixedly connected between the outer side of one end of the water bin and the outer cylinder at equal intervals, and the outer side of the other end of the water bin is fixedly sleeved with a cover cylinder; the two sides of the lower inner wall of the cover cylinder are fixedly connected with bottom tables correspondingly, motors fixedly connected with the bottom tables are embedded and inserted into the cover cylinder, the impeller assembly comprises a shaft cylinder mechanism and a fan mechanism, and according to the intelligent air circulation fan, the atomization effect is improved, and the air wetting effect is remarkably improved.

The utility model relates to the technical field of reactors, in particular to a continuous multiphase reactor for anthraquinone nitration reaction, which comprises a reactor shell with a reaction cavity, a plurality of partition plates are arranged in the reactor, and the partition plates sequentially divide the reaction cavity into a first reaction area, a second reaction area, a settling area and a separation area from top to bottom. A valve is mounted on the partition plate; a first feeding hole for anthracene to pass through, a second feeding hole for sulfuric acid to pass through, a third feeding hole for nitric acid to pass through and a water inlet for a water solution to pass through are formed in the shell, and a first reaction zone, a second reaction zone, a settling zone and a separation zone are arranged in the shell of the reactor; the production of nitroquinone can be completed in one reactor, the integration degree is improved, the occupied space of equipment is reduced, and material circulation is avoided, so that the production efficiency is improved.

The invention relates to a dry-type RIP sleeve core winding paper stress test method based on an optical fiber. The method is characterized by comprising the following steps: S1, arranging the optical fiber; s2, connecting optical fibers; s3, leading out the optical fiber; s4, circulation of the core; an optical fiber is wound in winding paper of a core, and circulation production is carried out along with the whole core with the winding paper through an optical fiber layer structure; in this way, the core can be detected at any time in each process, and unqualified cores are prevented from flowing in the production process. In this way, on one hand, defective products can be picked out at any time, defective products are reduced, and the qualified rate of products is increased; on the other hand, defective products can be found in the production process as soon as possible, and the production cost is reduced.

The invention belongs to the technical field of sewage purification treatment equipment, and particularly relates to a sewage purification treatment device and method. An outer barrel is arranged in the barrel body, the outer barrel is formed by sequentially combining an upper barrel, a middle barrel and a lower barrel, the top of the barrel body is rotationally connected with the upper barrel through a first circular groove, the upper barrel is fixedly connected with the middle barrel, the middle barrel is rotationally connected with the lower barrel, a power shaft is rotationally connected into the upper barrel, and the lower barrel is fixedly connected with the inner wall of the barrel body; the power shaft, the upper cylinder and the middle cylinder rotate reversely through the power part, sewage enters the smashing gear ring through the water inlet pipe to smash impurities and then enters the filter screen, the power shaft drives the lifting conical ring to ascend and descend, the filter screen rotates and has anti-blocking and backwashing functions on the filter screen, blockage of the filter screen is avoided, the sewage and the impurities are layered due to centrifugal force, and different layers of filter screens filter different impurities according to the centrifugal force. The separation efficiency of impurities in sewage is improved.

The invention discloses automatic heat treatment equipment for a glass substrate, and relates to the technical field of glass processing equipment.The automatic heat treatment equipment comprises a hot bending die, the hot bending die comprises a fixed die and a movable die which can be opened and closed, the fixed die comprises a die holder, and a die cavity with an arc-shaped vertical section is formed in the die holder; the air cavity is formed in the die holder, a plurality of air blowing holes communicated with the air cavity are distributed in the bottom surface of the die cavity, and a valve groove is formed in the middle of each air blowing hole in a cut-off mode; the valve plate is arranged in the valve groove and can slide along the inner wall of the valve groove in an airtight mode, and communicating holes corresponding to the blowing holes in a one-to-one mode are formed in the valve plate. Compared with an ejector rod mode, formed glass is more softly and progressively jacked, air pressure thrust is evenly distributed at the bottom of the formed glass, the formed glass is gradually separated from a mold cavity, the product quality problem caused by mold taking is reduced, and the product percent of pass is increased.

The utility model provides a radiating device of a medical endoscope 4K imaging system and light source integrated host, which belongs to the field of medical instruments and consists of a medical endoscope 4K imaging system and light source integrated host, a display, an endoscope camera handle, light guide fibers and an endoscope. According to the scheme, a layer of ultra-thin graphene cooling fin is attached between the cold light source and the cold light source radiator, so that the heat conduction efficiency is higher, heat dissipation can be better achieved, the temperature of the mainboard is prevented from increasing through the partition plate, meanwhile, the partition plate prevents hot air from forming circulation or vortex in the case, and the heat dissipation efficiency is improved. Through the arrangement of the mainboard cooling fan and the cold light source cooling fan, the cooling efficiency is higher, the overall heat of the medical endoscope 4K imaging system and the light source integrated host is reduced, the time delay of the 4K imaging system is shortened, the operation is safer, and the operation efficiency is improved. The problems that in the prior art, due to the fact that heat in a machine case is too large, time delay of a 4K imaging system is greatly increased, and the risk of an operation is increased can be solved.

The invention discloses temperature response type high-temperature-resistant release paper and a preparation method thereof. The release paper comprises a first release layer, a resin isolation layer, a base material layer, a resin punching layer, a temperature-sensitive layer and a second release layer which are sequentially stacked. The PNIPAAm temperature-sensitive layer is additionally arranged on the outer side of the perforated resin isolation layer, when the temperature-sensitive layer is lower than LCST (lowest critical compatibility temperature), molecular chains of the PNIPAAm temperature-sensitive layer are in a stretched state and are large in size, the perforated holes can be blocked, and water circulation can be prevented, when the temperature is higher than LCST, the molecular chains of PNIPAAm are in a contracted state and are small in size, and the perforated holes can be blocked by the PNIPAAm temperature-sensitive layer. Moisture can freely enter and exit through the exhaust holes, so that the use of the release paper is not influenced, and higher temperature can be resisted; the method can solve the problem that the water content of the paper is greatly changed due to the fact that the perforated release paper is influenced by external humidity.

The application belongs to the technical field of battery management, and discloses a parallel battery cooperative control method and system based on a communication bus. The method adopts a decentralized architecture, each battery module periodically broadcasts its own information containing MOS state semantics through the communication bus, and receives other information; each module autonomously decides the switch of the charging and discharging MOS based on a preset rule. The core innovation includes: the MOS closed state is semantically classified into protection closed, logic closed and other types, precise cooperation is realized; a channel giving mechanism is introduced, so that the recovery process after protection is removed has no circulating current; in the discharging state, the braking signal and voltage judgment are combined to intelligently control the feedback current absorption; each module assigns an ID by broadcasting a unique code, supporting hot plug. The application completely eliminates the single-point fault of the traditional scheme, significantly improves the reliability, expandability, safety and energy efficiency of the parallel system, and is suitable for electric vehicles, energy storage devices and other fields.

The present invention discloses a highly breathable super absorbent diaper pad and a preparation method thereof, which belongs to the technical field of diaper pads, and comprises a protective layer, an absorption layer and an anti-reverse osmosis layer from top to bottom, wherein the protective layer is composed of antibacterial modified soybean protein viscose fiber, polyester fiber and ES fiber, the absorption layer is composed of super absorbent fiber and antibacterial modified soybean protein viscose fiber, and the anti-reverse osmosis layer is composed of super absorbent fiber and antibacterial modified soybean protein viscose fiber. The present invention adopts a three-layer non-woven fabric structure with gradual changes in pore size, hydrophilicity and disorder, which can accelerate urine absorption and prevent reverse osmosis; the present invention treats soybean protein to improve hydrophilicity, antibacterial property and air permeability, and the amphiphilicity can make urine diffuse and be absorbed faster and adjust water absorption balance; the present invention utilizes mannitol, hexafluorobutyl methacrylate and other ingredients to make the fiber have excellent water absorption, reduce surface energy, and form a network structure with block copolymer and sodium polyacrylate to improve water absorption and air permeability.

The invention belongs to the technical field of respiratory training devices, and particularly relates to a respiratory training teaching aid used before lung function examination, the respiratory training teaching aid comprises a mouth, an air pipe, a variable resistance assembly and a detection assembly, the variable resistance assembly comprises a fixing block, the fixing block is internally provided with a respiratory channel and a variable resistance cavity, and the variable resistance cavity comprises a sliding cavity and a placing cavity; an electromagnet, a magnet, a sliding block and an elastic piece are arranged in the placing cavity, the sliding block is fixedly connected with a variable resistance piece, the variable resistance piece is slidably connected into the sliding cavity, a vent hole and a round hole are formed in the variable resistance piece, the round hole is covered with an elastic film, and the sliding cavity is communicated with the breathing channel; the detection assembly comprises a flow sensor, a display screen, a vertical plate, a signal transmitter, a signal receiver, a controller and a prompter, and the vertical plate is provided with an air vent and a signal shielding piece; the air pipe is communicated with the breathing channel and the ventilation opening in the vertical plate. The respiratory resistance can be adjusted, and the blowing flow and the blowing duration can be detected, so that the respiratory state in the lung function examination process is simulated, the examination success rate is improved, and the examination time is shortened.

The utility model provides an unmanned aerial vehicle logistics goods receiving platform based on a curtain wall. The unmanned aerial vehicle logistics goods receiving platform comprises a goods receiving bin, a goods receiving table used for landing of an unmanned aerial vehicle and goods, a first transmission assembly and a second transmission assembly. The object collecting bin is fixedly installed in a building wall, an opening is formed in one side of the object collecting bin, and the opening is exposed to the outside through a building curtain wall. The object receiving table is connected with the object receiving bin in a sliding mode, and the object receiving table is switched between the position extending out of the outside and the position stored in the object receiving bin in the mode that the object receiving table slides relative to the object receiving bin. The first transmission assembly is arranged on the receiving table and used for driving goods on the receiving table to be transferred to the receiving bin. The second transmission assembly is arranged in the receiving bin and used for driving the goods in the receiving bin to be transferred to the side away from the opening. According to the utility model, unmanned delivery and receiving of goods are realized, a user can receive the goods very conveniently, and good use experience is achieved.

The invention discloses a water quality stratified sampler for water environment monitoring, which structurally comprises a guide pipe, a sampling structure, a holding rod, a conical block, scale marks and a collecting pipe, the holding rod is embedded and fixed at the upper end of the sampling structure, the scale marks are attached to the outer surface of the sampling structure, the guide pipe is connected to the side surface of the sampling structure, and the conical block is clamped at the lower end of the guide pipe. When the stretching pipe moves along with the water inlet pipe for height adjustment, the right end of the stretching pipe is driven to move up and down, then the left end of the stretching pipe obliquely pulls the circulating plate, the circulating plate is driven to slide up and down under the sliding rail, and then water enters the circulating plate from the stretching pipe to circulate; the water flow becomes gentle under the blocking of the two circulating plates, and the water at the same water level cannot flow to the water levels at the upper side and the lower side under the blocking of the gap plate, so that the water is prevented from flowing up and down due to overlarge circulating force during collection, and the water is prevented from flowing to sampling ports at other heights under the impact force.

The utility model discloses an asphalt production material conveying system which comprises a PLC (programmable logic controller), a base, a first rack, a second rack, a waste bag packing device and a plurality of groups of motors. According to the utility model, a whole set of operation system from material carrying to material adding and metering is adopted, so that the automation of asphalt production material adding is realized, the labor intensity in the asphalt production process is reduced, and the integrated work of automatic grabbing, crushing, transportation, metering, adding and the like is realized; the crusher is combined with the roller screen to crush and screen materials, the mechanical arm automatically calculates the weight according to the bag number of the grabbed materials and completes first-stage metering, and the weighing sensor is arranged in the buffer hopper to complete second-stage metering of the materials and feed back to the PLC. The PLC controls the feeding amount of the materials through cooperation of the spiral feeder and the powder metering pump, three-level metering of material transportation is completed, and therefore accurate adding of the materials is achieved.

The utility model relates to a fuel gas leakage self-locking valve which comprises an outer pipe body, one end in the outer pipe body is connected with a ventilation ring, the end, away from the ventilation ring, in the outer pipe body is connected with an inner pipe body in a sliding mode, the inner pipe body comprises an end cover and a sliding sleeve connected to the end cover, and a plurality of communicated ventilation holes are formed in the sliding sleeve and the end cover. The middle of the sliding sleeve is connected with a sealing plug matched with the ventilation ring. The end, away from the sliding sleeve, of the end cover is provided with a mounting opening communicated with the ventilation hole. The outer wall of the outer pipe body is connected with a fixing ring, the fixing ring and the end cover are connected through an electric telescopic rod, a control cavity is formed in the end cover, a control electric plate is arranged in the control cavity, the outer wall of the end cover is connected with a gas sensor, and the gas sensor and the electric telescopic rod are both electrically connected with the control electric plate. The sealing plug is arranged in the inner pipe body, the inner pipe body is arranged at one end of the outer pipe body in a sliding mode, and the outer pipe body and the inner pipe body are in a linear state, so that the overall height is reduced, the occupied volume is reduced, and installation in a narrow space is facilitated.

The application provides a concentrated winding circulating current loss suppression method and structure based on coil cross transposition, and belongs to the technical field of motor winding design and concentrated winding loss optimization. The structure comprises a spliced stator core and a winding coil. The winding coil is formed by winding a plurality of parallel winding strands around the split teeth in a root-by-root manner. Each parallel winding strand is arranged in layers in order from inside to outside. The winding coil is provided with a selective cross transposition structure at the end according to the parity of the number of parallel winding strands. The odd number of strands are only provided with an inter-coil cross transposition structure, and the even number of strands are provided with an inter-coil cross transposition structure or an intra-coil cross transposition structure. When the application is applied to a high-speed fractional-slot concentrated winding permanent magnet motor, the circulating current loss coefficient can be reduced by more than 36.4% at a frequency of 1500 Hz, the process is simplified, the end space occupation is reduced, and the motor power density is improved.

A large-diameter spiral pipe connecting piece comprises two semicircular clamping plates which are oppositely arranged. The inner wall of the combination of the two clamping plates is ring-shaped; the two ends of the clamping plate extend to form connecting plates. The oppositely-arranged connecting plates of the two clamping plates are connected through a plurality of first fixing bolts. A plurality of partition rubber strips are arranged on the inner wall of the clamping plate; semicircular soft rubber sealing rings are fixedly arranged at the two ends of the clamping plate. A reinforcing fixing ring is arranged on the outer side of the soft rubber sealing ring; the two opposite reinforcing fixing rings are connected through a second fixing bolt. The flexible rubber sealing rings are arranged at the two ends of the clamping plates, the reinforcing fixing rings are used for pressurizing the flexible rubber sealing rings, so that the two ends of the clamping plates are well sealed through the flexible rubber sealing rings, the inner space formed by the two clamping plates is completely sealed through the combination of the flexible rubber sealing rings, the sealing grooves and the sealing strips which are arranged on the two sides of the clamping plates, and the situation of water leakage is prevented. The spiral pipe connecting piece achieves good sealing and internal space partition effects, and the water leakage prevention performance is improved.

The utility model relates to the technical field of medical nursing, in particular to a postoperative trauma nursing device which can protect a knife edge of a patient, heal the knife edge of the patient, reduce pain of the patient and improve practicability and comprises a protective ring, a pasting ring is arranged at the bottom of the protective ring, and a supporting ring is arranged at the top of the protective ring. First adhesive is arranged at the bottom of the protective ring, a protective film is attached to the top of the protective ring, second adhesive is arranged at the bottom of the protective film, a waterproof breathable film is arranged in the middle of the protective film, a plurality of through holes are formed in the periphery of the protective ring, and the through holes penetrate through the side wall of the protective ring. A plurality of through holes are formed in the protective film, a plug is mounted in each through hole, the protective ring is made of silica gel, the protective film and the waterproof breathable film are transparent films, and a pull button is arranged at one end of each plug.

A special cultivation device for selenium-enriched sprouts, belonging to the technical field of soilless cultivation devices, addresses the problems of excessive roots extending beyond the basket during hydroponics, which can easily disperse nutrients and impair water circulation, affecting the normal growth of seedlings inside the basket. Furthermore, roots can clog the gaps in the seedling tubes, also hindering seedling growth and development. The invention includes a main frame and a water supply tank fixed in the middle of the main frame's surface. Several sets of hydroponic tubes are equidistantly and parallelly fixed above the main frame. This invention can cut off excessively grown roots extending beyond the seedling basket, keeping the main growing roots inside the basket. This ensures the distribution of nutrients for sprout growth and prevents excessive root growth from obstructing the effective flow of water within the hydroponic tubes. It also prevents outward-extending roots from entangled with the roots of adjacent seedling baskets, thus avoiding damage to the sprouts during subsequent trimming.

Provided is a motor drive device that drives a motor by controlling torque generated by the motor based on a d-axis current and a q-axis current, the motor drive device including: a d-axis current command generation section that calculates a first d-axis current command; a current command correction section that generates a positive correction amount that is added to the first d-axis current command when a terminal voltage of the motor is equal to or greater than a prescribed value; and a voltage feedback control section that generates a negative correction amount that is added to the first d-axis current command to prevent the terminal voltage of the motor from exceeding a prescribed maximum output voltage, and controls the torque based on a second d-axis current command obtained by adding the positive correction amount and the negative correction amount to the first d-axis current command, and a q-axis current command.

The plant protection pesticide box comprises a plant protection pesticide box body, the center of the inner bottom of the plant protection pesticide box body is fixedly connected with the bottom end of a net cylinder, a cavity is formed in the net cylinder, the outer side of the net cylinder is fixedly connected with one side of a partition plate, the number of the partition plate is four, and the partition plate is fixedly connected with the bottom end of the net cylinder. The other sides of the four partition plates are fixedly connected with the four inner walls of a plant protection pesticide box body correspondingly, a containing groove is formed in the plant protection pesticide box body and divided into four parts through the four partition plates, and plastic permeable membranes are arranged on the top end faces of the four containing grooves. Pesticide with the bottle opening opened is placed in the containing groove of the plant protection pesticide box body, sterilization, disinfection and deodorization can be conducted on the pesticide through the ultraviolet lamp and the deodorization ball placed in the net cylinder, and then the sealed top cover is buckled to achieve the sealing effect on the interior of the plant protection pesticide box body. Air circulation is avoided, so that oxidation reaction between the pesticide and oxygen in the air is reduced, and stinking and deterioration of the pesticide are avoided.

The utility model relates to the technical field of hot melting devices, in particular to a hot melting device for assembling a server shell, which comprises a hot melting box, a supporting plate is fixedly connected to the bottom of the inner wall of the hot melting box, a cooling box is arranged on the right side of the hot melting box, a cooling mechanism is arranged above the cooling box, and the cooling mechanism is used for refrigerating the interior of the cooling box. A conveying mechanism is arranged in the hot melting box and the cooling box, the conveying mechanism is used for conveying the server shell group subjected to hot melting into the cooling box, the conveying mechanism comprises a connecting cover fixedly inserted between the hot melting box and the cooling box, and a conveying groove is formed in the connecting cover. The phenomenon that air in the hot melting box and the cooling box exchanges heat in the transferring process of the server shell subjected to hot melting can be reduced, the temperature in the cooling box is prevented from being affected, and therefore the cooling rate of the server shell subjected to hot melting is prevented from being affected.

The utility model provides a blast heating device for rock wool insulation board production, which comprises a shell, one side of the shell is fixedly connected with a driving motor, one end of the driving motor is welded with a turbine fan blade, the other side of the shell is in threaded connection with an air inlet baffle, the outer side of the shell is fixedly connected with an air outlet pipe, and the air outlet pipe is in threaded connection with the turbine fan blade. And an anti-backflow mechanism is arranged on the inner side surface of the air outlet pipe. According to the blast heating device for rock wool insulation board production, through the arrangement of the backflow prevention mechanism, when the driving motor works, high-speed air impacts the movable baffle and blows up the movable baffle, the movable baffle rotates around the rotating shaft, the air enters the cupola furnace, blast heating is conducted on the interior of the cupola furnace, and after blast heating is completed, the backflow prevention mechanism is started; when flue gas in the cupola furnace flows back, the movable baffle falls down under the action of gravity, when the backflow flue gas impacts the movable baffle, the first fixed baffle and the second fixed baffle can prevent the movable baffle from rotating reversely, and therefore the backflow prevention effect of the blast equipment is achieved.

The embodiment of the present application discloses a photovoltaic module aluminum alloy protective pressure piece with a sealing function, including a slide bar and a shrink jacket, a photovoltaic module limiting frame is installed on the upper part of the slide bar, a groove is opened inside the photovoltaic module limiting frame, and a photovoltaic module is movably sleeved inside the groove, an upper extrusion limiting plate is fixedly connected to the upper part of the shrink jacket, and a fastening bolt is installed in the middle of the upper extrusion limiting plate. The photovoltaic module aluminum alloy protective pressure piece with a sealing function is respectively fixedly connected to the inner parts of the upper extrusion limiting plate on both sides, and the bending spring steel pushes the auxiliary extrusion plate to move downward, and the elasticity of the bending spring steel can be adjusted, the auxiliary extrusion plate can continuously keep the outer side of the photovoltaic module limiting frame in a fitted state, and the position between the auxiliary extrusion plate and the photovoltaic module limiting frame can be fitted to increase the tightness.

The application provides a multi-energy storage converter coordination control method and system. The method comprises the following steps: synchronously collecting power grid parameters of a PCC point through a unified collection module arranged at the PCC point; receiving and processing the power grid parameters to obtain standardized data for a power control algorithm; generating a global regulation instruction based on the standardized data and in combination with acquired power regulation information, wherein the power regulation information at least comprises operating state information of each PCS, and the operating state information of each PCS at least comprises one of an SOC state corresponding to each PCS, a current output power, an adjustable power margin and a health state; and synchronously issuing the global regulation instruction to each PCS through a real-time communication network module, so that each PCS performs power output according to the same instruction source. The method effectively eliminates regulation deviation and internal circulation caused by independent response of multiple PCSs, improves response synchronism and regulation accuracy of the energy storage system to the power grid, and realizes optimal configuration of energy storage resources.

The invention discloses a safety detection device for mining ventilation equipment and a use method thereof, and relates to the technical field of ventilation. A safety detection device of mine ventilation equipment comprises a ventilation pipeline, an interception net is arranged at the air inlet end of the ventilation pipeline, the safety detection device further comprises a material storage shell, the material storage shell is arranged on the outer side of the ventilation pipeline in a sleeving mode and used for storing methane adsorbent particles, a feeding port communicated with the material storage shell is formed in the ventilation pipeline, an electric push rod is fixedly arranged on the ventilation pipeline, and the electric push rod is connected with the material storage shell. The telescopic end of the electric push rod is connected with a baffle used for blocking the feeding opening. The methane adsorbent particles in the mounting net rack are driven to shake, so that the situation that the methane adsorption effect of other methane adsorbent particles on gas is affected after part of the methane adsorbent particles in the mounting net rack are saturated is effectively prevented, the replacement period of the methane adsorbent particles is shortened, and the methane adsorption effect is guaranteed; methane adsorbent particles can be automatically replaced, so that the workload and the working difficulty of workers are reduced.

The invention discloses an intelligent charging control system and method for a power battery system and a vehicle. The intelligent charging control system of the power battery system is used for charging control of a battery system with at least two branches, and the branches are arranged in parallel. Each branch circuit comprises a battery module formed by connecting N battery boxes in series, a charging branch circuit and a heating branch circuit, the positive electrode of each charging branch circuit is connected with a branch circuit switch, the positive electrode of each heating branch circuit is connected with a branch circuit heating switch, and all the heating branch circuits can be controlled by any branch circuit heating switch; the branch switch and the branch heating switch are connected in parallel and then are connected to a charging and discharging positive port of the charging system through the charging and discharging positive switch; the negative electrode of each heating branch is connected to a charging and discharging negative electrode port of the charging system through a charging and discharging negative electrode switch, and the negative electrode of each charging branch is connected with the charging and discharging negative electrode switch through a current sensor. According to the invention, on-off of the switches between the branches can be controlled, and connection and disconnection of different branches are realized.

The utility model relates to vehicle peak power energy storage technical field, and disclose vehicle peak power energy storage system based on diode isolation and sodium electricity compensation, include: sodium battery, DC-DC converter, monitoring unit, DC bus, D1 diode and D2 diode, sodium battery links with DC-DC converter, DC-DC converter connects monitoring unit, DC-DC converter and sodium battery all are connected with DC bus, D1 diode is located between sodium battery and DC bus, D2 diode is located between DC-DC converter and DC bus, monitoring unit can perceive vehicle power demand change, cooperates DC-DC converter control, makes sodium battery timely access circuit to supplement lithium battery power output gap, satisfies the peak power demand under the vehicle specific scene, diode can realize sodium battery branch and the effective isolation of relevant circuit, guarantees system operation safety, the mixed passage design formed by diode and DC-DC converter realizes the technical effect of no loop current safety.

The utility model discloses a chuck for a high and low temperature probe station, which comprises a shell, and an accommodating cavity is arranged in the shell; the heat insulation assembly is arranged in the accommodating cavity; the heating part is arranged on the upper surface of the heat insulation assembly; the refrigeration assembly is tightly attached to the upper surface of the heating part and comprises a liquid nitrogen disc, a nitrogen inlet pipe and a nitrogen outlet pipe are arranged at the two ends of the liquid nitrogen disc, and a plurality of flow blocking columns are arranged in the liquid nitrogen disc; the heat conduction assembly is arranged on the upper surface of the liquid nitrogen disc. The chuck is arranged on the upper surface of the heat conduction assembly. According to the liquid nitrogen disc, the effect of refrigerating through liquid nitrogen is better, the liquid nitrogen disc is internally provided with a plurality of flow blocking columns, the liquid nitrogen can be evenly dispersed to all positions in the liquid nitrogen disc, the phenomena that single-channel circulation is achieved, the temperature of the formed channel position is low, and the surrounding temperature is high are avoided, and the refrigerating and heat conduction effects of the liquid nitrogen disc are further improved; when heat heated by the heating part is transferred upwards, the heat is transferred to the chuck after being sequentially transferred through the liquid nitrogen disc and the heat conduction assembly, the temperature uniformity is good, and the heating effect is good.