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1547results about How to "Reduce the temperature" patented technology

Temperature control management system of intelligent medical cabin for high altitude

PendingCN121957199ABasic output capabilities are consistentConsistent basic output capabilitiesTemperatue controlControllers with particular characteristicsData acquisitionMulti source data
The invention discloses a temperature control management system of an intelligent medical cabin for high altitude, which comprises a multi-source data acquisition module, a power self-adaptive processing module and a temperature control management display module, relates to the technical field of medical environment control, and solves the technical problems of serious performance attenuation, low energy efficiency, rigid control strategy and poor adaptability. According to the method, the current altitude and the current atmospheric pressure serve as core input parameters, the heating capacity attenuation coefficient and the convective heat transfer coefficient of the heat pump are subjected to real-time and quantitative scientific correction, the limitation that a traditional system neglects changes of environmental physical characteristics is broken through, a heat load calculation model is converted into a plateau self-adaptive model from a plain model, and the calculation efficiency is improved. The calculated total heat load demand and the heat pump output power better meet the actual physical conditions of the plateau, and therefore it is guaranteed that the basic output capacity of the temperature control system is consistent with the design expectation.
Owner:CSSC HAISHEN MEDICAL TECH CO LTD

Compound evaporator coupled with multiple heat sources, and heat pump system thereof

The invention provides a compound evaporator coupled with multiple heat sources, and a heat pump system thereof. The use efficiency of a heat pump and the energy utilization rate are improved while the coupled use of the multiple heat sources is achieved; meanwhile, flue gas waste heat can be recycled, and purification is achieved; and the side of the evaporator is prevented from being frosted effectively. The compound evaporator comprises a shell, and flanges arranged at the two ends of the shell; the shell comprises an outer shell and an inner shell; a spiral refrigerant flow channel is arranged in a clearance between the outer shell and the inner shell; an inside cavity of the inner shell forms a coupled working medium flow channel, and the two ends of the inner shell are provided witha coupled working medium inlet and a coupled working medium outlet separately; the outer side of the outer shell is provided with a plurality of flue gas cooling fins, and a flue gas channel used forheat exchange is formed between the adjacent flue gas cooling fins; and the two ends of the outer shell are separately provided with a refrigerant inlet and a refrigerant outlet which communicate withthe refrigerant flow channel.
Owner:XI AN JIAOTONG UNIV +1

A kind of drilling device for processing super-long graphite rod

The utility model relates to a kind of drilling device for super-long graphite rod processing, including tool tip and the tool holder connected with tool tip. Tool tip is set to three-prism pyramid shape. Tool tip includes: first cutting edge, at least two first cutting edges are symmetrically arranged, and the edge of at least two first cutting edges forms first angle;Second cutting edge, at least four second cutting edges are axially symmetrically arranged, and the plane of at least two second cutting edges forms second angle with the plane of opposite at least two second cutting edges. Chip removal platform formed due to first angle and second angle not being identical is arranged between tool tip and tool holder. The utility model is set to three-prism pyramid shape tool tip, and adopts multi-angle cutting edge (with symmetrically arranged first cutting edge and axially symmetrically arranged second cutting edge), so that tool is more uniform in cutting process Stress, can effectively reduce cutting force and cutting torque, can further reduce cutting resistance and vibration, improve cutting efficiency and machining precision.
Owner:SICHUAN HAICHENG CARBON PROD CO LTD

Heat management system and method based on multi-way valve and vehicle

The invention discloses a heat management system and method based on a multi-way valve and a vehicle. The heat management system comprises an engine waste heat utilization loop, a motor waste heat utilization loop and a refrigerating loop. The engine waste heat utilization loop is used for adjusting the temperature of the passenger compartment and the power battery by utilizing the waste heat of the engine; the motor waste heat utilization loop is used for adjusting the temperature of a passenger compartment and the temperature of an engine through waste heat of a motor; the refrigerating circuit is used for reducing the temperature of the power battery and / or the passenger compartment; the engine waste heat utilization loop, the motor waste heat utilization loop and the warm air core body of the passenger compartment are communicated through the first multi-way valve so as to achieve heat transfer; the engine waste heat utilization loop transmits waste heat of an engine to a passenger compartment and a power battery. The motor waste heat utilization loop transmits waste heat of the motor to the passenger compartment and the engine. The refrigeration circuit reduces the temperature of the power battery and / or the passenger compartment. According to the heat management system, multiple waste heat utilization loops are integrated, a heat management pipeline of the whole vehicle is simplified, and the transmission efficiency is improved.
Owner:WEICHAI POWER CO LTD

Interband cascade laser

The present disclosure provides an inter-band cascade laser, comprising: a bottom power supply module and a top power supply module; and an active layer arranged between the bottom power supply module and the top power supply module, the active layer being adapted to provide gain to generate laser light under the power supply of the bottom power supply module and the top power supply module, the active layer comprising a plurality of gain core layers and a plurality of optical confinement layers arranged alternately between two optical confinement layers; wherein the refractive index of the optical confinement layer is greater than the refractive index of the gain core layer, so that the laser light propagates in the active layer and generates a plurality of optical modes, and by adjusting the lasing wavelength of the gain core layer and / or the thickness of the optical confinement layer, the confinement factor of the fundamental mode in the plurality of optical modes is higher than the confinement factor of each high-order mode.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI

An easy-to-seal intelligent grounding box

ActiveCN224709192Uensure reliabilityEnsure long-term stability
This utility model relates to the field of intelligent grounding box technology, and discloses an easily sealed intelligent grounding box, including a box body. A rotatable door is rotatably connected to the front end of the box body. Several rainproof covers are fixedly connected to both ends of the box body. Exhaust grooves are formed on the inner walls of the rainproof covers at both ends of the box body. A loading frame is fixedly connected to the bottom end of the inner wall of the box body. A compression plate is connected to the top of the loading frame via a sealing assembly. A fan is installed at the rear end of the inner wall of the loading frame. A connecting cover is fixedly connected to the top of the box body. Cooling fans are connected to the left and right ends of the connecting cover via heat dissipation assemblies. This utility model achieves efficient sealing, significantly improves waterproofing, ensures the reliability and long-term stability of cable installation, and enables cold air circulation. Hot air is discharged from the exhaust grooves of the rainproof covers, significantly reducing the box body temperature and drying the damp inner cavity, ensuring stable equipment operation.
Owner:SHENYANG GUOLIAN CABLE ACCESSORIES MFG

Battery structure and electronic device

The present disclosure relates to a battery structure and an electronic device. The battery structure comprises a battery circuit board and two battery modules. The two battery modules are symmetrically arranged on both sides of the battery circuit board and connected with the battery circuit board. The first end of each flexible circuit board is connected with the battery circuit board, and the second end of each flexible circuit board is arranged to be connected with the mainboard of the electronic device. The first heat dissipation member is located between the two battery modules and is connected with the battery circuit board and the middle frame assembly of the electronic device. In the present disclosure, the plurality of flexible circuit boards are connected with the battery circuit board, and the plurality of flexible circuit boards simultaneously charge the battery modules to realize a fast charging mode, reduce the impedance of each flexible circuit board, and effectively reduce the heat generated by each flexible circuit board. The first heat dissipation member is connected with the battery circuit board and the middle frame assembly of the electronic device, respectively, conducts the heat in the battery circuit board to the middle frame assembly, and further dissipates heat for the battery structure.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Lifting type conductive trolley for graphitization inner string furnace

The present application relates to the technical field of conductive trolley, in particular to a lifting type graphitization inner string furnace conductive trolley, which comprises a liftable frame, and further comprises a sliding mechanism, a sliding support part and a compensation mechanism, the compensation mechanism is provided with at least two, and two are arranged oppositely, one end of the compensation mechanism is connected with the sliding mechanism, and the other end is connected with a pressure regulating part. The liftable frame is arranged, so that the conductive trolley can be flexibly adjusted according to the actual height of the furnace head electrode, precise butt joint with electrodes of different heights can be completed without the help of external lifting equipment, and the convenience and adaptability of furnace charging and furnace discharging operation are improved. Through the cooperation of the pressure regulating part and the compensation mechanism, the spring pre-tightening force can be adjusted online, the push plate is driven to move and extrude the spring, the spring increases the pre-tightening force, so that the compensation mechanism can always provide stable and reliable compensation effect for the electrode, and the stability and reliability of electrode conduction are ensured.
Owner:QINGDAO YIBO TECH CO LTD

A stacked energy storage device

This utility model discloses a stacked energy storage device, including a support plate and several energy storage components. Each energy storage component includes an energy storage unit, support legs, and L-shaped limiting plates. The support legs are fixedly installed at the bottom corners of the energy storage units, and the L-shaped limiting plates are fixedly installed at the top corners of the energy storage units. Multiple energy storage units are stacked together, with the support legs of the upper energy storage units inserted into the inner side of the L-shaped limiting plates on the top surface of the lower energy storage units. Multiple limiting frames are fixedly installed on the top surface of the support plate, with the support legs of the lowest energy storage unit inserted into the inner side of the limiting frames. A support plate is fixedly installed on the top surface of the support plate, and multiple insertion holes are provided on the side of the support plate. This utility model allows multiple energy storage units to be stacked together, and the limiting components, in cooperation with the support plate, limit the movement of the energy storage units, preventing them from shifting.
Owner:LISHUI YIYUAN TECH CO LTD

Refractory heat-insulating brick and preparation method thereof

PendingCN121850618Ahigh strengthImproved thermal shock stabilityFire brickMetal powder
The method comprises the following steps that S1, dry materials and a binding agent are provided, and the dry materials comprise 19 wt%-24 wt% of intaglio corundum with the particle size being 3-5 mm, 22 wt%-35 wt% of intaglio corundum with the particle size being 1-3 mm, 12 wt%-19 wt% of white corundum with the particle size being 0-1 mm, 18 wt%-24 wt% of white corundum fine powder with the particle size being smaller than 200 meshes and 2 wt%-4 wt% of composite metal powder; s2, the dry material and a binding agent are mixed and ground, and a mixed and ground material is obtained; and S3, molding and drying the mixed and ground material to obtain the fire-resistant heat-insulating brick. The refractory brick produced by adopting the inked corundum and the white corundum as main raw materials, adding the composite metal powder and adding the additional binding agent has the advantages of high strength, good thermal shock resistance, good permeability resistance, good erosion resistance and long service life, and can be widely applied to rotary kilns, cement kilns and other parts.
Owner:PANGANG METALLURGICAL MATERIAL CO LTD

An air outlet assembly and an air treatment device

The application provides an air outlet assembly and an air treatment device. The air outlet assembly comprises an air outlet frame having an air outlet, and a reinforcing piece which is separate from the air outlet frame, is located outside the air outlet, and is arranged on a long-side wall of the air outlet. The reinforcing piece is arranged to prevent the long-side wall from being bent and deformed. Thus, the long-side wall is less likely to be bent and deformed when heated, and the air outlet frame has better deformation resistance. In addition, the reinforcing piece is separate from the air outlet frame and is located outside the air outlet and arranged on the long-side wall of the air outlet. When hot air is discharged from the air outlet, the long-side wall separates the hot air and the reinforcing piece. Compared with the technical solution in which the reinforcing piece is arranged inside the air outlet, the temperature of the reinforcing piece is lower and the deformation amount of the reinforcing piece is smaller. Thus, the reinforcing piece has a better effect of preventing the long-side wall from being bent and deformed.
Owner:MIDEA GRP WUHAN HEATING & VENTILATING EQUIP CO LTD +1

Stamping die with cooling function

This application discloses a stamping die with a cooling function, belonging to the field of mechanical manufacturing technology. It includes a lower die base and an upper die base, both of which have cooling channels inside. Water inlet pipes are fixedly installed on the top of both the lower and upper die bases, and water outlet pipes are fixedly installed on the bottom of both. A cooling medium circulation mechanism is provided between the lower and upper die bases. The cooling medium absorbs heat from the lower and upper die bases after flowing through the cooling channels, and is then discharged into corresponding drain hoses through the water outlet pipes. Simultaneously, a second water pump is activated, and the coolant returns to the coolant storage tank through the water delivery pipe. The coolant dissipates heat through a heat dissipation mechanism as it passes through the middle of the water delivery pipe. The cooling medium circulation mechanism helps maintain a suitable temperature for the lower and upper die bases during operation, avoiding deformation and wear caused by high temperatures. Furthermore, this application has a simple structure, reducing manufacturing costs.
Owner:POWERFUL TECH (SHENZHEN) CO LTD

Discharging tower for salt production

The utility model provides a discharge tower for salt production, which comprises a feeder, a drying roller, a discharge tower and a heat source area, the feeder for feeding wet materials and the discharge tower for discharging dry materials are respectively arranged at the head end and the tail end of the drying roller, and the head end of the drying roller is communicated with the heat source area positioned obliquely below the drying roller; the discharging tower comprises a three-way valve, an air pipe, a discharging port, a tower body, a first air outlet and a second air outlet. Cold air and hot air in the cold air area and the hot air area are used as media, when the temperature of the tower body is high, the cold air enters the air pipe for cooling, and when the temperature of the tower body is too low, the hot air enters the air pipe for heating, so that the temperature of the tower body is maintained at 55-100 DEG C, dried edible salt particles cannot be damped, and the temperature of the edible salt particles is gradually reduced.
Owner:FUJIAN PUTIAN JINGXIU LIGHT CHEMICAL CO LTD

High-titanium slag blast furnace recovery method

PendingCN122235394AIncrease caloric reserveslow viscosityBlast furnace details
This disclosure relates to the field of high-titanium slag blast furnace smelting technology, and particularly to a method for restoring a high-titanium slag blast furnace after a shutdown. The method includes: reducing the coke load by 13% to 18% 4-5 hours before the shutdown; adding clean coke 3-4 hours before the shutdown, and adjusting the charging system to: a 3-ring ore charging system, with the ore platform's radial angle width ranging from 3° to 4°, the outer coke-ore angle difference ranging from 1.5° to 2°, and the inner ore-coke angle difference ranging from 5.5° to 6°; and controlling the pig iron [Ti] content to 0.15% to 0.20% and the slag binary basicity to 1.04 to 1.08 times the standard basicity starting 1-2 hours before the shutdown. This disclosure allows for rapid restarting of a high-titanium slag blast furnace after a long shutdown.
Owner:PANGANG GRP PANZHIHUA STEEL & VANADIUM

Sun-shading and cooling shed for snakehead breeding

ActiveCN224638837UEasily control expansionEasily control shrinking
The utility model relates to the field of aquatic product breeding facilities, concretely is a sunshade cooling shed for snakehead culture, including the shed frame and setting sunshade cloth on the shed frame, and the shed frame includes two support frames and two hangers, and the support frame is fixedly connected with the support pole, and the two hangers are located between the two support frames, and the both ends of the hanger are fixedly connected with the corresponding support frame, and the sunshade cloth is located between the two hangers, and the hanger is provided with the sliding assembly, and the sunshade cloth is connected with the corresponding hanger through the sliding assembly, and the upper portion of sunshade cloth is provided with the adjusting assembly, and the sunshade cloth is provided with the connecting assembly, and the adjusting assembly is connected with the sliding assembly through the connecting assembly, and the support frame is provided with the spraying assembly. Compared with the prior art, the patent sets up the slidable sunshade cloth driven by the pulley set in the hanger, and is equipped with the fixed pulley traction system, realizes the quick, labor -saving adjustment of sunshade area, solves the technical problem that sunshade coverage rate can not be dynamically adjusted.
Owner:SICHUAN PROVINCE NEIJIANG CITY ACADEMY OF AGRI SCI +1

A biomimetic starfish robot

This invention discloses a biomimetic starfish robot, relating to the field of simulation robots. The biomimetic starfish robot includes a biomimetic exoskeleton, which is obtained by folding a flat plate structure with creases; a shape memory alloy, which is disposed on the biomimetic exoskeleton and drives the biomimetic exoskeleton to deform through its own deformation; and a driving unit for driving the shape memory alloy to deform. The biomimetic starfish robot proposed in this invention uses an electric heating system attached around the shape memory alloy, which can transfer heat to the surrounding environment in a short time. Because the shape memory alloy at the arm-foot junction has a small volume and a low temperature of the austenite phase, the circuit system only needs a relatively weak electrical signal to generate enough heat to deform the shape memory alloy. Therefore, this invention will greatly reduce power consumption, reduce noise pollution, and simplify the design of the circuit system.
Owner:NANJING UNIV OF POSTS & TELECOMM

Multifunctional heat preservation barrel for water-based paint

ActiveCN224589817UAchieve temperature controlEffective coating properties
The utility model relates to a water -based paint multifunctional heat preservation bucket belongs to sand casting technical field to solve the problem that the existing sand casting production, because of winter environmental temperature is too low to lead to the performance of coating weakening, there is the problem of poor sand core dip coating quality and the decline of casting yield. The present application includes the barrel body, heating assembly and temperature control assembly, the inside of barrel body is equipped with the inner bucket to form the container cavity, the heating assembly includes heating water tank and circulating water pipe, heating water tank is equipped with heating part and water pump, circulating water pipe is installed in the inner bucket, and it is equipped with two connecting ports connected with heating water tank, the temperature control assembly includes inductor and controller, the inductor is installed in the inner bucket and heating water tank respectively, and inductor, heating part and water pump are electric connection with controller respectively. The heat preservation bucket of the present application can realize the coating heating preservation and coating stirring in the barrel, will not reduce the performance of coating, improve sand core coating quality and casting yield.
Owner:CRRC CHANGZHOU AUTO PARTS CO LTD

A high-speed wind tunnel slice water-cooled hinge torque balance measuring system

The application provides a high-hypersonic wind tunnel piece water-cooled hinge torque balance measurement system and belongs to the technical field of wind tunnel test measurement.The application aims to solve the problem that the rudder surface is difficult to be externally cooled due to thin structure and the hinge torque is difficult to be measured in the prior art.The aircraft fuselage is connected with the aircraft wing and the piece water-cooled hinge torque balance in the application.The top and bottom of the piece water-cooled hinge torque balance are respectively provided with a balance upper cover plate and a balance lower cover plate.The upper end surface of the balance lower cover plate is flush with the aircraft fuselage.The balance free end, the balance measurement element and the fuselage mounting base of the piece water-cooled hinge torque balance are sequentially connected.The balance free end is connected with the measured rudder surface through an angle ear.The balance measurement element is pasted with a strain gauge, and the balance measurement element is internally provided with a water-cooled groove circuit.The application solves the problem that the measurement precision is greatly reduced due to high temperature in the high-hypersonic wind tunnel test, and the rudder surface is difficult to be externally cooled due to thin structure and the hinge torque is difficult to be measured.
Owner:AVIC SHENYANG AERODYNAMICS RES INST

Control method of refrigerator and refrigerator

The application provides a refrigerator control method and a refrigerator. The refrigerator comprises a cabinet, a storage space and a freezing space arranged below the storage space are defined in the cabinet, a compressor and a fan are arranged in the freezing space, the compressor is used for refrigeration, and the fan is used for refrigeration for the storage space in cooperation with the compressor. The control method comprises the following steps: acquiring an ambient temperature and a stop time of the compressor; acquiring a corresponding time threshold according to an interval in which the ambient temperature is located; if the stop time of the compressor is greater than the time threshold, the compressor and the fan are started; if a current temperature of the storage space is less than a temperature threshold, the fan is controlled to stop; and the compressor is controlled to stop after a preset time. According to the ambient temperature and the stop time of the compressor, the application controls the start and stop of the compressor and the fan, so that the freezing space also reaches a target temperature at a lower ambient temperature.
Owner:TCL HOME APPLIANCES (HEFEI) CO LTD

Electric aircraft cold and hot mixing device

The utility model provides an electric aircraft cold and hot mixing device which comprises a cold air collecting assembly, a mixing assembly and a heat dissipation assembly, the mixing assembly is arranged above a battery assembly, the mixing assembly is provided with a mixing cavity, and an outlet section of the mixing cavity is communicated with a cabin environment control system through a ventilation pipeline; the cold air collecting assembly comprises a plurality of cold air pipelines, cold air inlets of the cold air pipelines are formed in wings or fuselage of the electric aircraft and correspond to the battery assembly, and cold air outlets of the cold air pipelines extend into the inlet section of the mixing cavity; the heat dissipation assembly comprises a plurality of heat conduction coil pipes, the heat conduction coil pipes are arranged on the bottom surface of the battery assembly, hot air inlets of the heat conduction coil pipes are communicated with the battery assembly, and hot air outlets of the heat conduction coil pipes extend into the inlet section of the mixing cavity and are staggered with the cold air pipeline. Natural high-altitude cold air is fully utilized, and the cold air and hot air generated by the battery are fully mixed in the mixing cavity, so that the temperature of the air is effectively reduced, and the heat dissipation efficiency of the battery system is improved.
Owner:XIAN ORIENT MATERIAL TECH CO LTD

Preparation method of fermented feed of sauce-flavor liquor lees

PendingCN122250548AImplement Adaptive ProcessingLow in Anti-Nutritional FactorsFungiBacteriaPolyphenolAspergillus niger
The present application relates to the technical field of feed processing, and particularly relates to a preparation method of Maotai-flavor distiller's grains fermented feed, which comprises the following steps: drying treatment based on the moisture content of Maotai-flavor distiller's grains to obtain basic distiller's grains; determining the strain ratio of brewer's yeast, bacillus subtilis and aspergillus niger based on the tannin content of the basic distiller's grains to obtain a compound fermentation inoculant; inoculating and then fermenting; determining state evaluation parameters based on the total polyphenol accumulation rate, the dissolved oxygen consumption rate and the microbial activity index during the fermentation process, and performing qualified evaluation, and dynamically adjusting when unqualified; determining the fermentation end point based on the tannin degradation rate and the total polyphenol accumulation rate; and mixing the fermented distiller's grains with the basic feed at a mass ratio of 1% after low-temperature drying of the fermented distiller's grains. The present application realizes three-layer control of raw material evaluation, process control and end point determination, significantly improves the stability and content of functional active ingredients in the product, reduces the tannin and safety risk, and has a good intestinal health improvement effect on animals.
Owner:GUIZHOU MAOTAI DISTILLERY (GRP) CIRCULAR ECONOMY IND INVESTMENT & DEV CO LTD

A double-sided aluminum substrate opening device

This utility model discloses a hole-opening device for a double-sided aluminum substrate, applied in the field of hole-opening device technology. It includes a base plate, a support plate fixedly connected to the bottom of a hydraulic cylinder, a hole-opening assembly at the bottom of the support plate, a placement plate slidably connected to the top of the base plate, a clamping assembly at the top of the placement plate, a connecting plate welded to the rear side of the support, a drive gear fixedly connected to the output end of a second motor, and two rotating rods rotatably connected to the front side of the vertical surface of the connecting plate via bearings. Each of the two rotating rods has a driven gear meshing with the drive gear on its surface, and a fan fixedly connected to the other end of each of the two rotating rods. This utility model, by incorporating a second motor, drive gear, rotating rods, driven gear, and fan, can reduce the temperature of the hole-opening head during the hole-opening process, thereby reducing deformation of the double-sided aluminum substrate or aging of the insulation layer, and extending the service life of the double-sided aluminum substrate.
Owner:HUNAN SANLICHENG TECH CO LTD

Liquid cooling plates, liquid cooling modules and computing devices

This application relates to a liquid cooling plate, a liquid cooling module, and a computing device. The liquid cooling plate of this application includes a base plate, a cover plate, and a fluid driving assembly. The cover plate covers the base plate, and a sealed liquid cooling cavity is provided between the cover plate and the base plate. The cover plate also has an input port and an output port, both of which communicate with the liquid cooling cavity. The input port is used to input liquid cooling fluid into the liquid cooling cavity, and the output port is used to output liquid cooling fluid from the liquid cooling cavity. The fluid driving assembly is disposed in a first groove and is used to accelerate the flow rate of the liquid cooling fluid. The liquid cooling plate, liquid cooling module, and computing device of this application have the advantages of high heat dissipation performance and high efficiency.
Owner:INVENTEC PUDONG TECH CORPOARTION +1

A circuit board chip temperature resistance testing device

This utility model relates to the field of circuit board performance testing technology, and proposes a circuit board chip temperature resistance testing device, including: a frame, an isolation shell located in the center, and a base located below the frame. The inner wall of the isolation shell of the frame is fixedly connected to a test shell. A fan draws external gas into the heating shell through an air supply pipe, guides the gas flow through a guide plate, and heats the gas inside the heating shell through a heating wire. Then, the hot gas enters from the top of the test shell through a second delivery pipe, and simultaneously enters the chamber where the circuit board chip is placed in the test shell through an airflow port on the surface of the partition. In addition, a semiconductor cooler lowers the temperature of the gas in the cooling shell, and then the low-temperature gas enters from the top of the test shell through a first delivery pipe, and simultaneously enters the chamber where the circuit board chip is placed in the test shell through an airflow port on the surface of the partition. In summary, this application provides a method for testing the performance of circuit board chips in both high-temperature and low-temperature environments.
Owner:CHENGDU YINXING SHUTAI TECHNOLOGY CO LTD

An intelligent pressure relief device for power distribution cabinet based on arc reduction

This invention provides an intelligent pressure relief device for power distribution cabinets based on arc suppression, belonging to the field of power distribution cabinet pressure relief devices. It includes a cabinet body and a cabinet door. The cabinet door is rotatably connected to the side wall of the cabinet body via multiple hinges. An outer shell is fixedly connected to the outer wall of the cabinet body, and a baffle is provided on the outer wall of the outer shell. A pressure relief port is provided on the side wall of the cabinet body, and a sealing plate is provided on the outer wall of the cabinet body. It also includes: an auxiliary component located inside the outer shell, used to prevent high pressure from forming inside the cabinet and to cool the cabinet; a trigger component located below the auxiliary component, used to prevent open flames from forming inside the cabinet; and a reinforcement component located inside the cabinet body, used to improve the stability of the cabinet door. This invention, through the pushing of the sealing plate, drives the fixed rod to move, causing the end of the lever to press against the push plate, allowing carbon dioxide to be injected into the interior of the cabinet, reducing the possibility of open flames.
Owner:JIANGSU BOTO ELECTRIC EQUIP CO LTD

Liquid hydrogen production device and working method thereof

The invention discloses a liquid hydrogen production device and a working method thereof.The liquid hydrogen production device comprises a first heat exchanger, a pipe mechanism, a conversion mechanism, a cooling mechanism and a valve bank, a second cooling medium inlet, a first inlet and a first outlet are formed in the first heat exchanger, and the pipe mechanism comprises a first cooling pipe; and the first cooling pipes are connected with the first heat exchanger. The valve set comprises a second throttling valve, the second throttling valve is installed on a first cooling pipe, the first cooling pipe is communicated with a first outlet and a second cooling medium inlet, and circulating hydrogen entering the first heat exchanger from the first inlet exchanges heat with circulating hydrogen cooled and depressurized through the cooling mechanism. And the first cooling medium flows into the first cooling pipe from the first outlet, is throttled by the second throttling valve and enters the first heat exchanger from the second cooling medium inlet. The raw material hydrogen is cooled through the mode that expansion continuous refrigeration of the cooling mechanism cooperates with high-pressure throttling refrigeration, energy is saved, and meanwhile the product hydrogen with the parahydrogen content reaching 97% is produced.
Owner:SHANGHAI LIFENGAS CO LTD

Cement stabilized macadam mixing device with recycled powder

ActiveCN224702268UEasy to storeeasy access
The utility model relates to a kind of cement stabilized macadam mixing devices of admixture recycling powder, it is related to recycling powder mixing technical field, including pre-stirring cooling cylinder, the top of pre-stirring cooling cylinder is provided with feed inlet, the inside opposite side between pre-stirring cooling cylinder is all provided with stirring assembly, the outer surface wall of pre-stirring cooling cylinder is provided with annular body, the top of annular body is provided with annular rack;Beneficial effect: by pre-stirring cooling cylinder, aggregate and recycling powder can be first stirred and mixed by stirring assembly, the heat absorption capacity of aggregate is reduced recycling powder temperature, then by fan device, the inside of pre-stirring cooling cylinder can be blown and cooled, water component is used to let the spray head body can be conveniently sprayed to carry out cooling treatment, which can accelerate the cooling efficiency of recycling powder, as far as possible can save time, and the cement stabilized macadam mixing efficiency is improved.
Owner:JINHUA TRANSPORTATION ENG CONSTR INVESTMENT MANAGEMENT CO LTD +3

Water-cooled roller fixture for strip conveying

This application provides a water-cooled roller fixture for strip conveying, including a protective component, a drive component, a coupling, a water-cooled roller, and a water-cooling assembly. The protective component includes a protective cylinder and a first bearing seat and a second bearing seat rotatably located at both ends of the protective cylinder. The drive component is mounted on the first bearing seat. The coupling is placed inside the first bearing seat. One end of the water-cooled roller is inserted into the protective cylinder, and the other end is rotatably engaged with the first bearing seat. The water-cooled roller is connected to the output shaft of the drive component via the coupling. The water-cooling assembly is used to supply cooling water with a circulating path to the water-cooled roller. The water-cooled roller fixture for strip conveying provided by this application allows the water-cooling assembly to transport cooling water to the space where the water-cooled roller is located, cooperating with the existing forced cooling on the outer periphery of the protective cylinder to simultaneously cool the inside and outside of the protective cylinder. The coupling is placed inside the first bearing seat, isolating it from the outside environment and preventing moisture from contacting the coupling.
Owner:HEBEI JIN XIGANG TIE JITUAN DAFANG ZHONGGONG SCI & TECHNOL

Pulsating electrochemical machining device and method with non-contact low-temperature intercalary heat exchange

PendingCN122274327Aavoid direct contactEnsure flow field stabilityElectrolytic agentPulse power supply
This invention relates to a non-contact, low-temperature, intermittent heat exchange pulsed-dynamic electrolytic machining apparatus and method, belonging to the field of electrolytic machining. The apparatus consists of a blade workpiece, a cathode plate, a cathode holder, and an insulating sleeve. The cathode plate undergoes high-frequency reciprocating vibration during radial feeding, coordinated with the synchronous switching of a pulse power supply, to achieve pulsed-dynamic electrolytic machining. In this pulsed-dynamic electrolytic machining method, the cooling medium flows into the insulating sleeve from the inlet of the cooling channel, flows through the cooling channel, and then flows out from the outlet of the cooling channel, reducing the temperature inside the insulating cavity. As the blade is shaped and enters the insulating cavity, the cooling medium undergoes convective intermittent heat exchange with the stray electrolyte within the cooling channel, reducing the temperature and conductivity of the stray electrolyte, and even freezing the stray electrolyte, creating a low-temperature environment around the shaped blade and inhibiting the electrolytic reaction in the stray corrosion zone. Pulsed-dynamic machining promotes the removal of electrolytic products and heat, further improving machining accuracy and surface quality.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS