32results about How to "Meet the working temperature requirements" patented technology

A self-soldering solder for soldering PTC ceramics with Al alloy is proportionally prepared from Zn, Al, Ag, Ti, Sn, Bi, Ga and RE.

The present invention relates to a high power non liquid cooling severe style constant temperature device, which consists of a thermal insulation unit, a semiconductor thermoelectric apparatus, a heat capacity block, a radiator, a temperature detector, a temperature control unit and a switching power. The thermal insulation unit consists of a thermal insulation box and thermal insulation filling materials, the thermal insulation filling materials is arranged in the thermal insulation box, the semiconductor thermoelectric apparatus, the heat capacity block and a temperature controlled optoelectronic device are arranged at the central part inside the thermal insulation box, and contacts with the thermal insulation filling materials; the temperature detector is directly pasted and covered on the outer surface of the optoelectronic device. The high power non liquid cooling severe style constant temperature device of the present invention has the advantages of novel concept, severe structure, large amount of refrigeration and heating, small size, convenient installation, no liquid refrigerator and compressor needed, no pollution, quick refrigeration speed, fine control performance, and easy industrialized batch production, etc; the present invention can be widely used for the temperature control of the apparatus needing constant temperature operation in the optoelectronic field, in particular to the site needing large amount of refrigeration and heating.

The invention aims at providing a cooling system for the lift test of a whole vehicle controller of a hybrid engine vehicle, which comprises a control unit, a flow metering valve, a water pump, a flow divider, a condenser, a water tank and a cooling stage provided with temperature sensors, wherein, the control unit receives temperature signals transmitted by the temperature sensors of the cooling stage and transmits control signals to the water pump, the flow metering valve and the flow divider to control the work of the water pump, the flow metering valve and the flow divider, cooling water pumped from the water tank by the water pump is divided into a plurality of flow metering valve and the cooling stage communicated with the flow metering valves, cooling water passing through the cooling stage is combined to the flow divider, and then the water passes through one or more condensers to come back to the water tank. The cooling system of the invention adopts a water circulation cooling method, the control unit has reliable temperature control methods for each cooling stage, and all cooling parts such as the whole vehicle controller, motors, and the like can be ensured to work in temperature ranges required for respective tests.

The invention discloses a damper sealing system, comprising guider assemblies and an oil seal. The guider assemblies at least comprise a guider, a neck bush, and an oil retainer. The oil retainer is arranged on the neck bush. The invention provides design of a sealing system which can satisfy high-low temperature performance of a damper. Through developing sealing performance of each component in the system, on the premise of ensuring high-temperature use of the damper, low-temperature use requirements of the damper can be satisfied, so as to prolong service life of a sealing body and the damper.

The invention relates to shipborne access layer switch equipment and a shipborne access layer switch equipment assembling and reinforcing method. The shipborne access layer switch equipment is mainly composed of an aviation socket board, a housing, a mounting base and a switch module. The housing is made of aluminum alloy and is manufactured through processes of sandblast, nickel plating and anticorrosive paint applying. A mounting base is fixed at the back of the housing. A vibration damping pad is added between the inner bottom of the housing and the switch module. Furthermore vibration damping rings are arranged at a portion between the front surface of the switch module and the housing, a portion between the back surface of the switch and the housing, a portion between the left surface of the switch module and the housing and a portion between the right surface of the switch module and the housing. The aviation socket board is connected with the switch module through a cable. Discrete elements of the circuit board in the switch module are fixed through 1345 glue. Each connecting slit of the housing is provided with conductive lining material. The shipborne access layer switch equipment and the shipborne access layer switch equipment assembling and reinforcing method can effectively satisfy requirements for heat radiation performance, vibration resistance, impact resistance, water resistance, moisture resistance, dust resistance and electromagnetic compatibility of commercial network equipment in a shipborne environment, and furthermore satisfy a requirement for the access layer network equipment by the shipborne electronic information system.

The invention discloses a high-temperature superconducting motor rotor low-temperature cooling system utilizing liquid hydrogen, and relates to the technical field of superconducting application low temperature. In the system, liquid hydrogen is stored in a liquid hydrogen storage tank to form a liquid section at the bottom and a gas section at the top, the liquid hydrogen of the liquid section istransmitted to a liquid hydrogen gasification cavity in an outer wall containing cavity of a high-temperature superconducting motor rotor in a communicating mode through a liquid hydrogen conveying pipe under the action of gravity to be subjected to heat exchange so as to achieve cooling, and hydrogen formed after liquid hydrogen gasification is transmitted back to the gas section of the liquid hydrogen storage tank through a hydrogen conveying pipeline to maintain the pressure in the liquid hydrogen storage tank so as to form a closed cycle. According to the system, liquid hydrogen is used as a low-temperature cooling medium so as to effectively maintain the temperature in the liquid hydrogen gasification cavity and meet the working temperature requirement of the superconducting magnet,and the system is driven by gravity, so that a circulating pump does not need to be additionally used, and the reliability of the system is improved.

The invention discloses a water-cooling heat dissipation module system of an engineering vehicle heating dissipation system, and belongs to the technical field of engineering vehicle heat dissipation. The water-cooling heat dissipation module system mainly comprises vehicle system heat sinks, a vehicle cooling liquid heat sink, a vehicle cooling liquid driving system and a cooling fan, wherein each vehicle system heat sink comprises an engine supercharged air heat sink, a vehicle hydraulic system hydraulic oil heat sink and a vehicle transmission system transmission oil heat sink, and vehicle cooling liquid sequentially flows through the vehicle system heat sinks; the water-cooling heat dissipation module system of the engineering vehicle also comprises an engine cooling liquid heat sink; the engine cooling liquid heat sink and the vehicle cooling liquid heat sink are arranged in a series connection manner; cooling air firstly flows through the vehicle cooling liquid heat sink and then flows through the engine cooling liquid heat sink so as to meet the working temperature requirements on supercharged air of an engine. The water-cooling heat dissipation module system has the advantages that the structural sizes of the vehicle system heat sinks are reduced, and the effective control on the temperature states of cold and hot fluids is easy to realize.

A rotational flow water film cooling type combustion chamber comprises a chamber wall, a flame tube head and two hydrocyclones, wherein the flame tube head is mounted in an inner cavity of a combustion chamber body, and the two hydrocyclones enable water input externally to form a rotating water film attached to the inner surface of the chamber wall. The flame tube head is provided with a premixing chamber. The hydrocyclones are located behind the flame tube head and spaced from the flame tube head. Each hydrocyclone is composed of a barrel, spray heads, mounting bases and swirl blades, wherein the outer surface of the barrel and the inner surface of the chamber wall define an annular water cavity, one end of the annular water cavity is closed, and the other end of the annular water cavity is open; the swirl blades are mounted at the open end of the annular water cavity; the number of the spray heads is 2-4, the number of the mounting bases is the same as that of the spray heads, the spray heads are mounted on the chamber wall through the mounting bases, water inlet holes of the spray heads are communicated with the annular water cavity, and the axes of all the spray heads are located in the tangential direction of the chamber wall.

The invention relates to a semiconductor laser with an automatic cooling device. The semiconductor laser comprises a cooling shell for bearing a semiconductor laser shell, a temperature detection sensor and a controller, wherein a groove for accommodating the semiconductor laser shell is formed on the upper surface of the cooling shell; a side cooling pipe and a bottom cooling pipe are arranged in the cooling shell; the side cooling pipe is communicated with the bottom cooling pipe; the side cooling pipe is communicated with a cooling tank through a pipeline; the bottom cooling pipe is communicated with a conveying pump through a pipeline; the conveying pump is communicated with the cooling tank through a pipeline; the temperature detection sensor is arranged in the semiconductor laser shell and detects the internal temperature; and the controller is used for receiving a detection signal of the temperature detection sensor and is electrically connected with the conveying pump. The bottom of the semiconductor laser shell is cooled by employing the bottom cooling pipe, and the side of the lower end of the semiconductor laser shell is cooled by the side cooling pipe, so that the cooling efficiency is improved, the operating temperature requirement of the semiconductor laser shell is met, and normal operation of the semiconductor laser is guaranteed.

The invention provides a thermal control method of a lunar surface patroller six-wheel rocker arm type moving mechanism. The thermal control method is used for controlling temperature of the moving mechanism made by adopting titanium alloy materials. The thermal control method is characterized in that: titanium alloy components such as rocker arms and driving mechanism shell bodies adopt titanium alloy micro-arc oxidation coatings with high emissivity, low solar absorptance feature and wide heat-resistant range; wheel surface screen meshes of wheels keep the natural color of titanium alloy without treatment; heat-conducting silica gel is painted between motors inside the driving mechanisms and the shell bodies; and a differential mechanism and a transmission shaft is coated with 5 units of multilayer thermal insulation assemblies. The thermal control method adopts a passive thermal control measure as thermal control means of the moving mechanism, and is simple and reliable; and the thermal control method adopts the novel micro-arc oxidation coatings with high emissivity, low solar absorptance feature and wide heat-resistant range, and ensures that the moving mechanism can meet the operating temperature requirement and have good adaptability to the space environment.

The invention provides a laser vision cooling device, belongs to the technical field of laser vision, and solves the problem that the existing laser vision system is poor in cooling effect. The laser vision cooling device comprises a rectangular shell, a left baffle and a right baffle, wherein the left baffle is arranged on the left side of the shell; the right baffle is arranged on the right side of the shell; a laser clamp and a camera are arranged in the shell; a laser is arranged on the laser clamp; a water pump with a water inlet I and a water outlet I is arranged on the top of the shell; a water cooling grate with a water inlet II and a water outlet II is arranged in the front of the shell; the water inlet II is communicated with the water outlet I; a metal plate I which is used for separating the laser from the camera and is internally provided with a cavity I is also arranged inside the shell; the metal plate I is attached to the camera and is provided with a water inlet III and a water outlet III which are respectively communicated with the cavity I; the water outlet II is communicated with the water inlet III; the water outlet III is communicated with the water inlet I. The laser vision cooling device has the advantages that the structure is compact, the cooling effect is good and the like.

The invention relates to a full-load flue gas denitration process and apparatus using supplemental combustion for an industrial boiler. The apparatus comprises a boiler, a high-temperature heat exchanger, a low-temperature heat exchanger, a small combustor, a catalyst, an air preheater, a chimney, etc. The apparatus is characterized in that the small combustor is additionally arranged on a flue located between the low-temperature heat exchanger arranged at the tail flue of the boiler and the catalyst; the small combustor may use light diesel fuel, coal dust, natural gas or the like as a fuel and is added during low-load operation of the boiler; and a catalyst inlet gas temperature is directly increased by using a supplemental combustion manner, so requirements on the operating temperature of the catalyst are met, and full-load denitration of the industrial boiler is realized. The full-load flue gas denitration process and apparatus provided by the invention are safe, simple, practical and reliable, can greatly reduce environmental protection cost and have high promotion value.

The invention discloses an axial flexible low-temperature heat conduction radial heat insulation device comprising a sealing body, a heat insulation cold chain connecting structure and a low temperature system. The heat insulation cold chain connecting structure comprises a radial heat insulating structure and an axial flexible low temperature heat conducting structure which are sequentially connected. The radial heat insulating structure and the axial flexible low temperature heat conducting structure are arranged in the sealing body, and the sealing body and the axial flexible low temperature heat conducting structure are connected to a cold source device of the low temperature system. The axial flexible low temperature heat conducting structure comprises a cold finger to be cooled, a heat conductor and a heat-conducting cold finger which are sequentially connected; and the heat-conducting cold finger is connected to the cold source device. The radial heat insulating structure includes a first shaft ring, a flexible spring and a second shaft ring which are sequentially connected; and the first shaft ring is connected with the heat conductor, and the second shaft ring is connectedwith the sealing body. Polished shafts are connected to the two ends of the flexible spring, a ring groove is formed in the circumferential direction of the side surface of each polished shaft, and the ring grooves are filled with heat insulating material layers. The axial flexible low-temperature heat conduction radial heat insulation device is small in heat loss, is in flexible connection, meets the requirements for low temperature heat transferring, and achieves the aim of position and posture adjustment.

The invention provides a self-fluxing brazing alloy for brazed connection of PTC ceramic and aluminum alloy and a preparation method of the self-fluxing brazing alloy. The self-fluxing brazing alloy is prepared from the following raw materials in percentage by weight: 2% to 6% of Al, 0.06% to 0.18% of In, 0.01% to 0.12% of Ti, 4% to 8% of Bi, 0.4% to 0.8% of P, 0.02% to 0.3% of KF, 0.01% to 0.2% of RE and the balance Zn, wherein RE represents La, Pr, Er, Dy or Nd. The preparation method comprises the following steps: preparing mother alloy by using all of the components according to a specified weight percentage; putting the mother alloy in a graphite crucible, and performing induction heating and remelting in a vacuum furnace; spray-casting molten liquid alloy on a high-speed rotating red copper roller by using argon after the mother alloy is heated to the temperature of 850 to 1000 DEG C; and performing shock cooling to obtain a solder foil band. The self-fluxing brazing alloy has certain plasticity in a solid state, has good wettability to the PTC ceramic, can be bonded with a PTC ceramic interface, and satisfies the requirement of the working temperature (smaller than or equal to 300 DEG C) of the PTC ceramic.

The invention discloses a guanidyl functionalized graphene doped composite anion exchange membrane and a preparation method thereof, and belongs to the technical field of membranes. The composite anion exchange membrane is an organic-inorganic composite membrane, an inorganic phase is guanidyl functionalized graphene, and an organic phase is a fluorine-containing acrylate polymer with a large number of guanidyl functional groups on a side chain. The composite anion exchange membrane prepared by the invention has high ionic conductivity, good chemical stability and thermal stability, and excellent dimensional stability and mechanical properties, and has good methanol resistance when being used for a direct methanol fuel cell.

The invention discloses an active and passive comprehensive thermal control design method for an aerospace multifunctional structure battery, and belongs to the technical field of aerospace thermal control. The method comprises the following steps: firstly, respectively designing a distributed active control measure and a passive thermal control measure based on multistage temperature control according to the configuration, heat consumption parameters and thermophysical parameters of the multifunctional structural battery; establishing a thermal analysis model of the multifunctional structure battery by adopting commercial thermal analysis software, setting boundary conditions of the multifunctional structure battery, and performing on-orbit working condition thermal analysis to obtain temperature field distribution of the multifunctional structure battery; and finally evaluating whether the temperature range and the temperature difference of the multifunctional structure battery meet index requirements. An effective active and passive comprehensive thermal control design scheme is provided for the multifunctional structure battery of the spacecraft, the working temperature requirement of the battery and the temperature difference requirement between the single batteries are met, and good adaptability and reliability are achieved.

The invention discloses a method, a device and a system for detecting tail gas of a coal mine locomotive. The method, the device and the system are used for detecting carbon monoxide in tail gas of a coal mine diesel locomotive in real time. The method comprises the steps that the locomotive tail gas is cooled through a first cooling device and a second cooling device; monitoring the temperature of the cooled locomotive tail gas; when the temperature of the cooled locomotive tail gas is smaller than a first preset temperature, the locomotive tail gas is extracted, carbon monoxide detection is conducted on the locomotive tail gas through a carbon monoxide sensor, and the first preset temperature is smaller than the maximum value of the normal working temperature of the carbon monoxide sensor. According to the method, before the tail gas of the locomotive for the coal mine is detected, the tail gas of the locomotive is cooled, so that the temperature of the tail gas of the locomotive is controlled within the working range of the carbon monoxide sensor, and the carbon monoxide in the tail gas of the diesel locomotive for the coal mine is detected in real time through the carbon monoxide sensor at the tail gas pipe of the locomotive.

The invention is applicable to the field of medical equipment, and discloses a defibrillator which comprises a front shell, a rear shell, a defibrillation capacitor and a release resistor, the front shell and the rear shell are connected and define an inner cavity, the defibrillation capacitor and the release resistor are both arranged in the inner cavity, the defibrillation capacitor is arranged close to the bottom of the inner cavity, and the release resistor is arranged close to the top of the inner cavity. According to the defibrillator, the release resistor serving as one of main heating components of the defibrillator is arranged at the position close to the top of the inner cavity, so that additional temperature rise of other components caused by rising of hot air generated when the release resistor works can be avoided. Meanwhile, the defibrillation capacitor serving as one of main heat-sensitive parts of the defibrillator is arranged at the position close to the bottom of the inner cavity, so that the phenomenon of temperature rise of the defibrillator capacitor caused by rising of hot air in the defibrillator can be avoided, the working temperature requirement of the defibrillator can be met on the premise that a cooling fan is not arranged, and the service life of the defibrillator is prolonged. And the heat dissipation problem in the miniaturization design of the defibrillator is solved.

The invention discloses a soft electric energy output cable for a large-power wind driven generator. The soft electric energy output cable comprises a conductor, an insulating layer, a wrapping layer and a protective sleeve layer, wherein the conductor is arranged at the center of the cable; the insulating layer is arranged on the outer layer of the conductor; the wrapping layer is arranged on the outer layer of the insulating layer; the protective sleeve layer is arranged outside the wrapping layer; an adhesive is arranged between the conductor and the insulating layer; and a filling layer is arranged between the insulating layer and the wrapping layer. According to the invention, by using a silicon rubber insulating material, the requirement that the cable can be twisted for 360-720 degrees in both a clockwise direction and an anticlockwise direction can be satisfied under the situation of outputting electric energy in a wind power generating tower body in a vertically laid state; and as the filling layer is designed between a cable core and the wrapping layer, the formula of a filling material is optimized and the softness is good; in addition, as a heterogeneous twisting structure with 1-6 cores is designed for the cable conductor and a cable core soft structure is developed, the anti-twisting performance of the cable is improved.