378 results about "Contact heat" patented technology

The invention discloses a high-heat-flux heat dissipation system for an on-orbit computing power cluster, and belongs to the technical field of spacecraft heat control. The system is independent of a satellite conventional thermal control platform and is specially used for discharging waste heat of an AI calculation array. The system comprises a heat capture unit, a pumpless heat transfer unit and a foldable heat dissipation unit. The heat transmission unit comprises a micro-channel flexible pulsating heat pipe (such as a diamond film material), and the heat pipe spans a folding area and has the functions of structural connection and heat transmission, so that a thermal low-impedance independent channel relative to a satellite structure is formed. Through the design of removing a mechanical pump and removing a mechanical hinge, the problems of large weight, micro-vibration interference, high contact thermal resistance and the like of a heat dissipation system of the computing power satellite are solved, and preferential directional heat dissipation of high-flux heat is realized.

The invention relates to the technical field of temperature control, in particular to a multi-dimensional compensation ablation system temperature control system, method and device and a medium. The system calculates a medium texture index representing the structural change of the load medium by synchronously acquiring electrical parameters and ultrasonic image data; constructing an anti-interference control model comprising an extended state observer, and defining energy transmission loss caused by contact thermal resistance as an extended state variable; calculating an adaptive correction factor based on the texture index, dynamically correcting the state updating process of the observer to obtain an energy loss correction estimated value, and constructing a compensation control model to adjust the output power according to the energy loss correction estimated value; according to the invention, the technical problem of incomplete heating caused by false high temperature of the sensor and system misjudgment due to state deterioration of the contact interface is effectively solved; accurate reconstruction and closed-loop compensation of effective heat flow in a non-ideal contact environment are realized, sufficient energy penetration can still be maintained even if contact thermal resistance is sharply increased, and the integrity of an ablation area is guaranteed.

The invention relates to the field of particle accelerators, in particular to an ultrahigh and extremely high vacuum acquisition system and method. The vacuum obtaining system comprises a vacuum obtaining device and a vacuum temperature control device, the vacuum obtaining device comprises a ceramic vacuum chamber, an interlayer vacuum chamber, a main pump chamber, a first vacuum pumping assembly and a second vacuum pumping assembly, the main vacuum chamber is formed in the ceramic vacuum chamber, and the ceramic vacuum chamber is arranged in the interlayer vacuum chamber; and an interlayer space is formed between the ceramic vacuum chamber and the interlayer vacuum chamber. The ceramic vacuum chamber is arranged in the interlayer vacuum chamber, the interlayer space is formed between the ceramic vacuum chamber and the interlayer vacuum chamber, and the interlayer vacuum chamber is heated through the heating element, so that the ceramic vacuum chamber is uniformly heated in a non-contact heat radiation uniform heating mode; the problem of thermal stress concentration caused by direct conduction heating of the ceramic vacuum chamber is thoroughly eliminated, leakage or fracture of the ceramic-metal joint caused by thermal stress is avoided, and the structural integrity of a heterogeneous material connecting area is ensured.

The invention relates to a thermal buffer liquid cooling soaking device with a multi-phase change system and a preparation method of the thermal buffer liquid cooling soaking device. The thermal buffer liquid cooling soaking device comprises a liquid cooling plate and a fin runner integrated soaking plate used for making contact with a heat source. A fin flow channel is arranged on the outer side of the fin flow channel integrated vapor chamber, a fin hollow structure is arranged in the fin flow channel, and the fin hollow structure is filled with a phase change material with the phase change temperature of 100-120 DEG C; the liquid cooling plate covers the outer side of the fin flow channel integrated vapor chamber and forms a cooling liquid flow channel for cooling liquid to flow together with the fin flow channel; when the heating power of the heat source is small, sensible heat of the phase-change material absorbs part of heat, the cooling liquid takes away the heat and waste heat which cannot be absorbed by the phase-change material in time, and the temperature of the heat source is kept stable; when the heating power of the heat source is large, the phase change material begins to generate phase change, a large amount of latent heat is absorbed in the process, a thermal fusing effect is formed in the temperature range of 100-120 DEG C to play a thermal buffering role, and the power device can stably run in an overload mode within a period of time.

The invention relates to the technical field of interface thermal resistance calculation, and discloses a method for measuring and calculating interface thermal resistance based on an infrared imaging technology, which comprises the following steps: fixing and aligning paired upper and lower test pieces to form a to-be-measured contact interface, respectively preheating to a preset initial temperature difference and stabilizing, and monitoring and recording temperature change and test piece thermophysical parameters; enabling the test piece to be in contact, starting infrared imaging equipment to record full-field transient temperature data in a temperature equalization process, and forming a three-dimensional data matrix; building a thermal resistance correlation model, constructing a heat conduction equation in combination with the parameters to solve a simulated temperature field, and inverting related heat conduction coefficients by using a conjugate gradient method; and calculating microscopic and total contact thermal resistance according to the inversion coefficient and the geometric parameters, and deducing macroscopic thermal resistance. According to the method, non-intrusive transient infrared temperature measurement is combined with a reverse heat transfer algorithm, so that the microscopic thermal resistance, the macroscopic thermal resistance and the total contact thermal resistance are accurately distinguished and quantified.

The invention provides an aluminum alloy precision forging forming die multi-area independent temperature control system and method, the system comprises a forming die assembly, a force thermal decoupling support base, a fluid temperature control supply station and a main control unit, the forming die assembly comprises a plurality of heat conduction inserts separated by heat insulation isolation layers; a rigid bearing loop and a dynamic thermal control loop which are parallel to each other are integrated on the force thermal decoupling supporting base, the dynamic thermal control loop drives the high-thermal-conductivity telescopic thermal bridge and the interface flexible dielectric layer to ascend and descend through a displacement actuator, and in a non-forging state, the thermal bridge supports the heat conduction insert and maintains a safety gap with the rigid bearing stand column; in the forging impact stage, the heat conduction insert moves downwards to eliminate the safety gap, the rigid bearing stand column bears the forming load, the main control unit adjusts the output force of the actuator according to temperature feedback, and the contact thermal resistance is adjusted and controlled in real time by changing the interface contact pressure. The problem that a precise temperature control assembly is difficult to bear forging impact is solved, and quick and precise response of multi-area independent heat flow is achieved.

Disclosed in the present invention are an interface thermal conductivity coefficient distribution optimization design method and system for improving the thermal contact performance of an assembly interface, the method comprising: acquiring microscopic morphological features of a contact heat dissipation surface of a component of an electronic chip packaging system; constructing a thermal contact performance numerical analysis model; using the thermal contact performance numerical analysis model to perform multiple iterations on the thermal conductivity coefficient distribution of a design area to obtain a thermal conductivity coefficient distribution and thermal contact resistance; on the basis of the thermal conductivity coefficient distribution and the thermal contact resistance, determining whether each iteration meets an iteration convergence criterion; and if the iteration convergence criterion is met, outputting the thermal conductivity coefficient distribution and the thermal contact resistance. In the present invention, the temperature transfer path of an assembly interface is controlled by designing the thermal conductivity coefficient distribution of the surface of the assembly interface, and the innovative design thinking of a "heterogeneous" thermal conductivity coefficient distribution is used to truly achieve a uniform temperature gradient distribution.

The invention relates to the technical field of electronic devices, discloses a low-thermal-resistance insulation integrated top heat dissipation power device, and aims to solve the problems that a traditional power device is high in thermal resistance, insufficient in insulation reliability and complex in assembly. The device comprises a frame base island, an insulating layer, a SiC chip, a bonding aluminum wire, a pin, an injection molding body and a metal heat dissipation top cover, the insulating layer is a high-thermal-conductivity ceramic layer such as aluminum nitride, the thickness of the insulating layer is 20-150 micrometers, the insulating layer and the frame base island are integrated through high-temperature oxidation bonding, and the metal heat dissipation top cover is bonded with the insulating layer in a low-thermal-resistance mode. An external insulation part is not needed, the assembly process is simplified, an efficient heat dissipation channel is constructed, contact thermal resistance is reduced, meanwhile, wide-temperature-range insulation stability is guaranteed, long-term operation reliability and service life of the device are improved, and the structure is suitable for a high-power-density power electronic scene.

The utility model discloses an efficient heat dissipation aluminum pot structure which comprises an aluminum pot body, handles are fixedly installed on the two sides of the aluminum pot body, an installation groove is formed in the center of the lower surface of the aluminum pot body, a plurality of embedded grooves in a circular array are formed in the outer surface of the aluminum pot body, and the embedded grooves extend in the direction from the lower surface of the aluminum pot body to the side wall of the aluminum pot body. A heat dissipation ring is detachably installed on the outer surface of the aluminum pot body. When the aluminum pot body is heated, the lower surface of the aluminum pot body is in contact with a heat source, the honeycomb-shaped ceramic plate located on the lower surface of the aluminum pot body assists heat to be more evenly distributed on the lower surface of the aluminum pot body, accumulation of the heat at the bottom of the aluminum pot body is reduced, and the heat dissipation assembly embedded in the installation groove can absorb the heat at the bottom of the aluminum pot body more quickly. And heat is quickly conducted to the side wall of the aluminum pot body from the mounting groove along the embedding groove, and is uniformly distributed at the bottom and the side wall of the aluminum pot body, so that quick diffusion of the heat is realized.

The invention discloses an integral pouring method and structure of a blast furnace hearth for replacing a cooling wall. A lining body formed by integrally pouring a high-thermal-conductivity amorphous refractory material is directly arranged on the inner side of a furnace shell; a plurality of hole channels are formed in the furnace shell, cooling elements are arranged in the hole channels, one end of each cooling element is embedded into and penetrates through the lining body and is in close contact with the lining body, a cooling wall is omitted, air gap thermal resistance is avoided, the cooling elements are in direct contact with a high-thermal-conductivity refractory material, heat can be quickly and directly transmitted to a cooling system, and the cooling efficiency is greatly improved; a protective slag iron shell is easily formed on the hot surface of the hearth; the overall pouring structure is free of brick joints, and permeation erosion of molten iron and alkali metal is avoided; the high thermal conductivity ensures that the temperature field of the hearth lining is uniformly distributed, the thermal stress is small, and the ring crack risk of a traditional structure is fundamentally eradicated; if abnormal erosion occurs in a local area, online repair can be performed by adopting a press-in technology, so that the maintenance cost is low, and the service life of the first-generation blast furnace is prolonged.

The invention provides a phase change heat storage system and method based on two-phase contact heat exchange, and relates to the technical field of heat energy storage. The system comprises a high-temperature liquid storage tank, a low-temperature particle storage tank, a heat-carrying liquid loop, a connecting pipeline and a switching valve, a heat exchange pipeline, a liquid-carrying heat pump, a heater / radiator and a separator are arranged on the heat-carrying liquid loop to form a complete loop, the high-temperature liquid storage tank is connected to the heat exchange pipeline, and the low-temperature particle storage tank is connected with the heat exchange pipeline and the separator. During heat storage, the low-temperature particles and the high-temperature heat-carrying liquid are in direct contact for heat exchange in the heat exchange pipeline, and the particles are melted into liquid and then stored in the high-temperature liquid storage tank; during heat release, high-temperature liquid is granulated into liquid drops through the nozzle, the liquid drops make direct contact with low-temperature heat-carrying liquid in the heat exchange pipeline for heat exchange, and the liquid drops are solidified into particles and then stored in the low-temperature particle storage tank. Through liquid-liquid and liquid-solid two-phase direct contact heat exchange, the heat transfer efficiency is improved, the problems of complexity and cost caused by phase change material packaging are solved, and the heat storage device is suitable for large-scale heat storage application.

This invention relates to the field of organic synthesis technology and discloses a method and system for preparing adiponitrile. The method includes: S1: atomizing molten adipic acid and mixing it with ammonia gas, followed by an ammoniation reaction to generate an ammoniation product; S2: dividing the ammoniation product into two parts, a and b. Part a undergoes a countercurrent, non-contact heat exchange with hot material to generate crude adiponitrile through heating and dehydration, while part b is recycled back to step S1 to participate in the reaction. The ratio of the ammoniation product in part a to that in part b is (1~5):1. The temperature of the hot material is higher than the temperature of the ammoniation product in part a. This invention improves the efficiency of the ammoniation reaction, reduces the decomposition side reactions of adipic acid and the residue of adipic acid, and significantly improves the conversion rate of the dehydration reaction and the selectivity of adiponitrile.

The utility model discloses a wear-resistant polyester fiber yarn shaping auxiliary device, which relates to the technical field of textile, and comprises a heat shaping box and a heating box, and the heat shaping box is arranged at the upper end of the heating box; the device further comprises a plurality of wind-up rollers which are movably installed in the heat setting box, the wind-up rollers are evenly distributed in the heat setting box, spiral baffles are arranged on the surfaces of the wind-up rollers, the interiors of the spiral baffles communicate with the interiors of the wind-up rollers, and wind blown out by the hot air mechanism is guided into the wind-up rollers. The hot air is discharged out of the surfaces of the spiral baffle and the winding roller through the through holes, so that inner-layer polyester fiber threads wound on the surface of the winding roller can be in contact with the hot air, and the situation that the polyester fiber threads are wound outside the roller, the inner-layer threads cannot be in effective contact with the hot air, and then the threads are heated unevenly is prevented; and the spiral baffle can separate the winding roller, so that the lines are prevented from being stacked together.

The invention discloses a double-loop energy storage temperature control system and method, and relates to the technical field of heat management of energy storage systems. The system comprises a first heat management loop, a second heat management loop and a temperature control loop, the second thermal management loop is used for adjusting the temperature of the converter; the first heat exchange component is arranged between the first heat management loop and the second heat management loop and is used for realizing non-contact heat exchange between the first heat management loop and the second heat management loop; the first flow path switching element is used for establishing or disconnecting a first non-contact heat exchange path passing through the first heat exchange component; the control unit is used for performing coordinated control on the operation states of the first thermal management loop and the second thermal management loop based on the environment temperature in combination with the target temperatures of the battery unit and the converter; wherein the target temperature of the battery unit is lower than the target temperature corresponding to the converter. By adopting the system, the differentiated collaborative temperature control of the battery unit and the converter can be realized under different environment temperature conditions.

The invention relates to the technical field of insulated cables, in particular to a high-temperature-resistant overhead insulated wire, which comprises a core body, an insulating layer and a high-temperature-resistant layer which are sequentially arranged from inside to outside, the core body is coated with the inner layer; the inner layer is sleeved with the annular framework, and a plurality of pipe grooves are annularly formed in the annular framework in the circumferential direction; the heat dissipation unit is accommodated in the pipe groove; the outer layer is coated outside the annular framework; the heat dissipation unit comprises a hollow cylinder and a spiral cooling pipe, a spiral groove is formed in the outer surface of the cylinder, and the spiral cooling pipe is embedded in the spiral groove; a plurality of through holes are formed in the wall part of the column body; and a guide piece is arranged in the pipe groove. According to the high-temperature-resistant overhead insulated wire, heat-conducting silicone grease is forced to overflow through rotary installation of the column body, and the column body is combined with the third filling layer to form a heat conduction function, so that the contact thermal resistance between the spiral cooling pipe and the external environment is greatly reduced, the heat dissipation efficiency is ensured to be maximized, and heat generated during operation of the conductor is actively taken away through a built-in liquid cooling system.

The embodiment of the invention provides a stator iron core, a stator, a motor, a power assembly and a vehicle, and the stator iron core comprises a yoke part and a tooth part which are sequentially arranged along the axial direction of the stator iron core, and a cooling channel which extends along the radial direction of the stator iron core and comprises a plurality of communicated flow channel sections, and part of the flow channel sections are arranged at the tooth part. Part of the flow channel section is arranged on the yoke part. The stator iron core is provided with the cooling channel, part of the flow channel section of the cooling channel is arranged on the tooth part, and part of the flow channel section is arranged on the yoke part. Therefore, after the cooling liquid is introduced into the cooling channel, the cooling liquid can be in contact heat exchange with the tooth part and the yoke part of the stator iron core, namely, the contact heat exchange area of the cooling liquid and the stator iron core can be increased, the stator iron core can be fully cooled, and the cooling effect of the stator can be further improved.

The invention relates to the field of heat dissipation, in particular to an air-cooled heat dissipation device which comprises a heat dissipation laminated body, at least one heat pipe, a fixing plate and at least one fan, the heat pipe comprises a condensation end and an evaporation end, the condensation end of the heat pipe is fixedly connected with the heat dissipation laminated body, and the evaporation end of the heat pipe is fixedly connected with the heat dissipation laminated body. The evaporation end of the heat pipe penetrates through the fixing plate and is fixedly connected with the fixing plate, and the cross section area of the condensation end of the heat pipe is larger than that of the evaporation end of the heat pipe. The fans are arranged on the two sides of the laminated body. The air-cooled heat dissipation efficiency of a heat source is improved, the contact heat conduction performance is enhanced, airflow flowing is optimized, and noise is reduced.

The invention provides a temperature control explosion process product accurate trapping device, and belongs to the technical field of mines, the temperature control explosion process product accurate trapping device comprises a process product trap, an accurate temperature control unit module, a connecting assembly and a telescopic support; according to the precise trapping device for the products in the temperature control explosion process, the products in the explosion process can be quickly responded and trapped under the dual action of the reverse ferromagnetism of the spring and the electromagnet, meanwhile, precise control over trapping of the products in the explosion process is achieved through precise regulation and control over the thermal fuse, and the safety of the products in the explosion process is improved. According to the device provided by the invention, accurate control on different temperature change sections is realized by controlling the diameter of the thermal fuse, and the thermal fuse is fixed in the shock wave right opposite end surface groove through the thread, so that the damage of shock waves to the thermal fuse can be counteracted, and the thermal fuse can be in full contact with a heat source; therefore, high-precision, multi-period and multi-section process product accurate trapping is realized.

The invention relates to a three-dimensional uniform-temperature liquid cooling plate, a manufacturing method thereof and a server heat dissipation system. The three-dimensional uniform-temperature type liquid cooling plate comprises a housing, which is internally provided with a sealed cavity and is provided with a cooling liquid inlet and a cooling liquid outlet; the three-dimensional uniform temperature plate is arranged in the sealed cavity of the shell, the three-dimensional uniform temperature plate comprises a bottom plate used for making contact with a heat source and a micro-channel plate which is connected with the bottom plate and extends towards the top face and the at least two side faces of the shell, and therefore a steam cavity internally containing a working medium is defined by the three-dimensional uniform temperature plate and the micro-channel plate; a micro-channel flow channel is formed in the outer side wall of the micro-channel plate; and a flow channel space for cooling liquid to flow is formed between the inner wall of the shell and the outer side wall of the micro-channel plate of the three-dimensional uniform-temperature plate, so that the cooling liquid flowing in from the cooling liquid inlet can flow through the area where the micro-channel flow channel is located, and heat is brought out from the cooling liquid outlet.

This invention discloses a method for intelligent temperature control in the hydrogel production process, specifically relating to the field of intelligent temperature control. It addresses the problems of uneven temperature distribution during heating, leading to asynchronous gelation and poor product consistency. The method involves periodically collecting and calculating changes in contact thermal resistance of the heating power of each temperature control unit in the heating plate array to identify the completion status of each region. Based on the spatial distribution of the heating support plane, concentric rings are constructed, and the differences in completion time within different rings are quantified to obtain a synchronization deviation index. Furthermore, for regions with significant deviations, lagging and leading units are identified, and their temperatures are compensated and reduced based on radial temperature gradients and boundary adjacency characteristics, respectively. This ensures that the gelation process in each region becomes more consistent, thereby achieving adaptive control of the temperature field and improving the stability and uniformity of the overall preparation process.

The invention relates to a hot rod effective power evaluation method based on spatial distribution characteristics of a soil body temperature field, and is suitable for permafrost region engineering. The method comprises the following steps: selecting a hot rod which works stably, arranging temperature measuring holes on a horizontal section of a vertical axis in the middle of an evaporation section according to a near field, a middle field and a far field, and obtaining soil body temperatures T at different radial distances r; based on the steady-state heat conduction theory, regression analysis is carried out on measured data, a mathematical model T = C1 * ln (r) + C2 is constructed, and a coefficient C1 is solved; and combining the heat conductivity coefficient lambda of the soil body with the effective length L of the hot rod, and calculating the effective refrigeration power of the hot rod on the soil body by utilizing a formula Q =-2pi lambda LC1. The method does not need to pre-embed a sensor, does not interfere with the operation of the hot rod, and can include the contact thermal resistance influence between the hot rod and the soil body. The method has the advantages of high measurement precision, low cost and the like, and realizes in-situ and quantitative evaluation of the actual refrigeration efficiency of the existing engineering hot rod.

The invention belongs to the technical field of thermal switches, and particularly relates to an expansion type thermal switch based on a paper-cut structure, which comprises a thermal expansion paper-cut structure, the thermal expansion paper-cut structure is a central symmetry structure, two ends of the thermal expansion paper-cut structure are fixedly connected through a fixing plate, and the top end of the thermal expansion paper-cut structure is fixedly connected with the bottom end of a fixed heat source; the negative thermal expansion paper-cut structure is of a central symmetry structure, the two ends of the negative thermal expansion paper-cut structure are fixedly connected through a fixing plate, and the bottom end of the negative thermal expansion paper-cut structure is fixedly connected with the top end of the fixed cold source; the thermal expansion paper-cut structure and the negative thermal expansion paper-cut structure are horizontally arranged in parallel, a first gap is reserved between the bottom end of the thermal expansion paper-cut structure and the top end of the fixed cold source, and a second gap is reserved between the top end of the negative thermal expansion paper-cut structure and the bottom end of the fixed heat source. The invention has the advantages of larger thermal stroke, extremely small contact thermal resistance, larger switch ratio and long service life in overheat and overcold space environments.

This invention discloses an inner tank outer wall heating and insulation component and its heating method for an electric water heater and electric water faucet. The component includes an inner tank, an outer shell, and an insulation component filling the space between them. A thermally conductive coating is provided on the outer wall surface of the inner tank. The insulation component consists of an annular heating element located on the inner side and an insulation layer located on the outer side, with the annular heating element covering and adhering to the thermally conductive coating. This invention reduces contact thermal resistance by filling microscopic gaps with the thermally conductive coating to form a solid thermally conductive medium; it utilizes a water pressure switch connected in series in the power supply circuit to achieve physical linkage between the water circuit and the electrical circuit; and the safety control module adjusts the power based on a PID algorithm and monitors for leakage and dry burning. This invention achieves complete separation of water and electricity, eliminating the risks of scale buildup and leakage, while also solving the problem of delayed thermal response in outer wall heating, resulting in precise temperature control and energy efficiency.

This utility model belongs to the technical field, specifically relating to a heating structure for a pyrolysis furnace. It includes: a heating chamber disposed below the pyrolysis furnace, with at least one vent hole at the top of the heating chamber corresponding to the bottom of the pyrolysis furnace; a heating hood covering the heating chamber and the outside of the pyrolysis furnace, with an exhaust port at the top of the heating hood, and a heating channel forming inside the heating hood connecting the exhaust port and the vent hole; and a burner nozzle connected to the interior of the heating chamber. This utility model addresses the problem of uneven heating and heat loss in traditional direct heating methods. By blowing hot air through the vent hole at the top of the heating chamber, direct contact between the heat source and the pyrolysis furnace is avoided, changing the traditional direct heating to indirect heating. Simultaneously, the enclosed interior of the heating chamber and the top vent hole constrain the flow of hot air, ensuring that heating primarily occurs at the bottom of the material accumulation area, preventing airflow diffusion and reducing heat loss.

The application discloses a high-pressure gas and particle contact type heat exchange device and a solar light and heat power station, wherein the heat exchange device comprises a high-temperature particle storage tank, a low-temperature particle storage tank, a heat exchanger and a plurality of high-temperature particle flow channels and a plurality of low-temperature particle flow channels; the high-temperature particle storage tank is communicated with a particle inlet of the heat exchanger through the high-temperature particle flow channels; the low-temperature particle storage tank is communicated with a particle outlet of the heat exchanger through the low-temperature particle flow channels; a plurality of first gas flow resistance members are arranged on the high-temperature particle flow channels; a plurality of second gas flow resistance members are arranged on the low-temperature particle flow channels; the gas flow resistance members change the gas flow direction and make the high-pressure gas be restrained in the particle flow channels. The particles and the high-pressure gas are directly exchanged in the heat exchanger, the high-pressure gas can be restrained in the particle flow channels, the high-pressure gas cannot enter the high-temperature and low-temperature particle storage tanks, the particle storage tanks are always operated under normal pressure, and the cost of the particle storage tanks and the heat exchanger is reduced.

The utility model relates to the technical field of quicklime production, in particular to a quick quicklime cooling device, which is characterized in that a rotary drum is obliquely arranged, the output end is higher than the input end, and the inner wall of the rotary drum is fixedly connected with a spiral guide plate; the top of the feeding hopper is communicated with the output end of the material conveying device, the bottom of the feeding hopper is fixedly connected with a feeding pipe extending to the input end of the rotary drum, and the output end of the air blower is fixedly connected with an air blowing pipe extending to the output end of the rotary drum. The rotary drum with the output end higher than the input end is arranged, the spiral material guide plate is connected to the inner wall of the rotary drum, the air blower is arranged to blow air to the output end of the rotary drum, materials can be turned over and driven to move towards the output end, and compared with existing vertical falling cooling equipment, the contact heat exchange time of cold air and the materials is prolonged; and the direction of the air blowing pipe is arranged in the spiral direction of the spiral material guide plate, so that the materials can be in full contact with cold air, and the material cooling effect is improved.

The invention relates to the technical field of coupling of heat storage devices and thermal power generating units, and discloses a graphite-based ultrahigh-temperature cascade heat storage coupling system and a working method thereof.The coupling system comprises a water supply unit, a solid heat storage unit, a steam pocket, a modular phase change heat storage device, a steam turbine system and a power generator; the water supply unit, the solid heat storage unit, the steam pocket, the modularized phase change heat storage device and the steam turbine system are sequentially communicated through a circulating pipeline, a heat exchange medium passing through a water supply pump flows into the solid heat storage unit, and a high-parameter medium with the temperature of 560 DEG C or above flows out of a medium outlet of the modularized phase change heat storage device. By means of the modularized heat storage device structure for direct contact heat exchange, heat storage materials and heat exchange pipes of all the modules are arranged in a layered mode, flow control is conducted in a layered mode, and stable control over the gas production temperature of the device is achieved.

A wafer test cassette having a fluid inlet and a fluid outlet, includes a first housing, a second housing, a heat source, and an isolation device. The first housing includes a probe card including probes. The second housing is coupled to the first housing, so that a test space is defined. The second housing carries a wafer arranged in the test space, and the probes are electrical contact with an upper surface of the wafer. The heat source heats a lower surface of the wafer, and a high temperature region is defined between the lower surface and the second housing. The solation device surrounds the high temperature region for thermally isolating the high temperature region from the test space. The fluid inlet receives a gas, the gas flows between the probe card and the upper surface of the wafer, and exits through the fluid outlet.

The utility model relates to the technical field of distribution boxes, and discloses a contact heat dissipation device of a distribution box, which comprises a distribution box body, the front side of the distribution box body is rotatably connected with a cabinet door, and the inner side of the cabinet door is provided with a heat dissipation assembly for heat dissipation of the distribution box body. The three inner air holes are formed in the outer wall of the inner air duct in the staggered mode, when the inner air duct rotates, the three inner air holes can be driven to correspond to the outer air holes respectively, airflow is input into the inner air duct through the miniature air blower, and therefore when each inner air duct outputs the airflow, the airflow in the inner air duct can be exhausted to the air outlet hole from the position of the single inner air hole every time; and finally, the air flow is exhausted into the distribution box body, so that the situation that the heat dissipation effect on elements in the distribution box body is insufficient due to the fact that the air flow exhausted by the inner air holes far away from the air source is small due to the fact that the multiple inner air holes exhaust the air flow at the same time is avoided, and uniform heat dissipation of the elements in the distribution box body is achieved by intermittently exhausting the air flow through the three inner air holes in the inner air duct. And the heat dissipation effect is ensured.