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31results about How to "Applicable cooling" patented technology

Double-component low-hardness high-heat-conductivity room-temperature-curing organosilicon heat conducting adhesive

The invention relates to a double-component low-hardness high-heat-conductivity room-temperature-curing organosilicon heat conducting adhesive, belonging to the technical field of electric insulation adhesives for binding and packaging electronic and electric appliance elements. The double-component low-hardness high-heat-conductivity room-temperature-curing organosilicon heat conducting adhesive comprises a component A and a component B, wherein the component A is prepared by mixing the following components in parts by weight: 100 parts of base material and 0.1-0.5 part of platinum catalyst; the component B is prepared by mixing the following components in parts by weight: 100 parts of base material, 0.1-10 parts of terminal-hydrogen-containing silicone oil, 0.1-10 parts of side-hydrogen-containing silicone oil and 0.01-1 part of inhibitor; and the base material is prepared by the following steps: mixing 100 parts by weight of divinyl silicone oil and 800-1500 parts by weight of aluminum oxide, treating with hexamethyldisilazane at 115-125 DEG C, and cooling to room temperature to obtain the base material. The adhesive has the advantages of high heat conductivity (up to 2.5-3.6 W / (m.k)), low hardness and ideal mechanical properties; and the adhesive can be closely combined with the electronic element, and therefore, can be ideally used for heat dissipation of high-power elements.
Owner:西卡(江苏)工业材料有限公司

Multi-dimensional phase change radiator and manufacturing method thereof

The invention relates to a multi-dimensional phase change radiator which comprises a radiator front side plate located in an XOY plane and a first set of fins vertically extending from the radiator front side plate to the Z direction at intervals. A plurality of second sets of fins are arranged at intervals in the direction perpendicular to the first sets of fins; the first sets of fins and the second sets of fins are crisscrossed; in the first set of fins, at least part of the fins are phase-change fins, and phase-change steam channels are formed in the phase-change fins; a phase-change baseplate is fixed to the outer side of a front side plate of the radiator, a base plate phase-change steam cavity is communicated with all fin phase-change steam channels to form a continuous closed vacuum environment, and a certain amount of phase-change working medium is placed in the continuous closed vacuum environment. The invention mainly aims at a natural convection radiator, the radiator greatly improves the heat dissipation efficiency and uniformity, greatly reduces the weight of the radiator, and reduces the volume of the radiator under the same heat dissipation boundary; the radiator is compact in structure, regular in shape, attractive in appearance and particularly suitable for heat dissipation of communication electronics, industrial transmission frequency conversion, inversionequipment and electronic components.
Owner:上海合辰科新材料有限公司

Heat-conducting wave-absorbing patch

The invention discloses a heat-conducting wave-absorbing patch, and the patch comprises an aluminum honeycomb skeleton and a wave-absorbing medium; the aluminum honeycomb skeleton is provided with a plurality of cavity structures which are periodically arranged, and the cavity structures of the aluminum honeycomb skeleton are filled with the wave-absorbing medium; the aluminum honeycomb skeleton is used for constructing a heat conduction network for heat flow propagation in the heat conduction and wave absorption patch, the wave absorption medium filled in the aluminum honeycomb skeleton is used for absorbing electromagnetic waves, and the propagation constant of the wave absorption medium is regulated and controlled through the size of the cavity structure; in addition, the aluminum honeycomb skeleton has high conductivity, and can absorb electromagnetic waves due to conductivity loss under the action of the electromagnetic waves; the aluminum honeycomb skeleton capable of forming a heat conduction network is embedded into the wave absorbing medium, and the heat conductivity of the composite material is greatly improved through phonon-electron synergistic heat transfer; the wave-absorbing performance of the wave-absorbing medium is further improved by utilizing the regulation and control of the aluminum honeycomb core wall on the propagation constant and reflectivity of the wave-absorbing medium and an electric conduction loss mechanism, and the mechanical property of the heat-conducting wave-absorbing patch is enhanced.
Owner:HUAZHONG UNIV OF SCI & TECH

Apparatus and method for removing ammonia in ammoxidation gas

The invention relates to an apparatus and method for removing ammonia in ammoxidation gas. The apparatus and method mainly overcome the problem of low removal efficiency of ammonia in reaction gas from an outlet of an ammoxidation fluidized bed reactor in the prior art and the problems of increase of polymerization loss of organic matter, blockage of towers and pipelines and shortening of the operation cycle of equipment after ammonia enters a subsequent system in the prior art. The apparatus provided by the invention comprises a shell, a reaction gas inlet, a reaction gas outlet, a reaction gas neutralizing liquid inlet and a reaction gas neutralizing liquid outlet, wherein the reaction gas neutralizing liquid inlet is provided with spraying layers formed by geometrically arranged nozzles at positions above the reaction gas inlet in the apparatus, distances among the spraying layers gradually increase from bottom to top, an upper inter-spraying layer distance is 1 to 1.5 times of the lower adjacent inter-spraying layer distance, and the reaction gas inlet is provided with a gas distributor. According to the invention, neutralizing liquid and reaction gas are in countercurrent contact, so problems in the prior art are overcome; and the apparatus and method can be applied to an industrial apparatus used for ammoxidation.
Owner:CHINA PETROLEUM & CHEM CORP +1

Variable density metal foam radiator

A variable density metal foam radiator comprises a heat transfer substrate and through-hole metal foams of different sizes respectively sintered on the heat transfer substrate. The square through-holemetal foams are located in the middle part of the heat transfer substrate, and the annular through-hole metal foams are located in the outer periphery of the square through-hole metal foams and havesmaller pores. According to the invention, the through-hole metal foams with the smaller pores have larger capillary force, as a circulation way to supplement a liquid required for evaporation, the through-hole metal foams with the larger pores are more conducive to the escape of bubbles so that the through-hole metal foams can separate the circulation path of the supplement liquid from the bubbleescape path, the resistance encountered when the bubbles escape is greatly reduced, and thus the boiling heat transfer coefficient is increased. The maximum boiling heat transfer coefficient is 3 times more than that of a smooth copper plate. The boiling initial wall superheat degree is reduced to 2K. The special structure in the invention makes the temperature distribution of the heat transfer substrate more uniform and more suitable for the heat radiation of an electronic chip. Therefore, the heat transfer device of the invention has high heat transfer efficiency and can be widely used in the field of heat radiation of electronic devices.
Owner:SHANGHAI JIAO TONG UNIV

A heat-conducting wave-absorbing patch

The invention discloses a heat-conducting wave-absorbing patch, which comprises an aluminum honeycomb frame and a wave-absorbing medium; the aluminum honeycomb frame has a plurality of periodically arranged cavity structures, and the wave-absorbing medium is filled in the cavity structure of the aluminum honeycomb frame Middle; the aluminum honeycomb skeleton is used to build a heat conduction network for heat flow propagation in the heat-conducting wave-absorbing patch, and the wave-absorbing medium filled inside the aluminum honeycomb skeleton is used to absorb electromagnetic waves, and the propagation constant of the wave-absorbing medium passes through the cavity structure In addition, the aluminum honeycomb skeleton has high electrical conductivity, and will absorb electromagnetic waves due to conduction loss under the action of electromagnetic waves; the present invention embeds an aluminum honeycomb skeleton that can form a heat conduction network in a wave-absorbing medium, and through phonon-electron collaborative transmission The heat greatly improves the thermal conductivity of the composite material; the control of the propagation constant and reflectivity of the absorbing medium by the aluminum honeycomb core wall and the conductance loss mechanism further improve the absorbing performance of the absorbing medium, and enhance the thermal conductivity of the absorbing patch mechanical properties.
Owner:HUAZHONG UNIV OF SCI & TECH

A method of independent partition control suitable for roller-disk cooling bed

The invention discloses a separate sub zone control method applicable to a roll and disc-type cooling bed, belonging to the field of control. The cooling bed is the roll and disc-type cooling bed; the working zone of the whole cooling bed is divided into a plurality of sub zones; the cooling bed is subjected to partitioned detection; the number of steel plates which can be accommodated by each separate zone is calculated by a PLC program according to the width of supplied steel plates; models are set according to material distribution conditions at target zones of the cooling bed and cooling temperature required by the steel plates; and the operation modes of the zones are automatically selected, so that the utilization rate of the cooling bed is improved. By utilizing the device, the steel plates of different cooling models during a thermal treatment process can be simultaneously subjected to classified cooling treatment; the phenomenon of a low utilization rate caused by integral control of a conventional cooling bed can be effectively avoided; the waiting time for the steel plates to be loaded to or unloaded from the cooling bed is reduced; and therefore the steel plates of different specifications can be cooled on the cooling bed according to the respective cooling temperature control models, so that the utilization rate and control flexibility of the cooling bed are greatly improved. The separate sub zone control method can be widely applied to the field of cooling control of the cooling bed during a large-scale continuous production process of a thermal treatment line.
Owner:BAOSHAN IRON & STEEL CO LTD

Ammonia neutralization device

InactiveCN105983317AReduce polymerization lossLow consumption levelDispersed particle separationAir quality improvementChemistryProduct gas
The invention relates to an ammonia neutralization device. The ammonia neutralization device is mainly used for solving the problems in the prior art that the rate of removal of ammonia from reactant gases in an ammonia oxidation reaction is low, the ammonia enters a subsequent system, the polymer loss of organic matters is increased, the clogging to towers and pipelines is caused, and the operation cycle of equipment is shortened. According to the ammonia neutralization device, by adopting the technical scheme that the ammonia neutralization device comprises a shell, a reactant gas inlet, a reactant gas outlet, a reactant gas neutralizing solution inlet and a reactant gas neutralizing solution outlet, a tower plate or filler which is located below the reactant gas neutralizing solution inlet and above the reactant gas inlet is arranged in the ammonia neutralization device, multiple spraying layers which are formed by sprayers in a manner of being distributed in a geometric shape are arranged at the reactant gas neutralizing solution inlet, a reactant gas neutralizing solution is in counter-flow contact with the reactant gases, and a demister is arranged above the reactant gas neutralizing solution inlet, the problems are better solved, and thus the ammonia neutralization device can be applied to an industrial unit for the ammonia oxidation reaction.
Owner:CHINA PETROLEUM & CHEM CORP +1

Modular heat radiator for LED lamps

The invention belongs to the technical field of heat radiators, and particularly relates to a heat radiator for radiating the heat of LED lamps. The heat radiator for radiating the heat of LED lamps comprises heat radiating fins and a heat radiating substrate, wherein a row of T-shaped embossments are uniformly distributed on the heat radiating substrate, a heat radiating fin installation groove is formed between two adjacent embossments, the heat radiating fin installation grooves are respectively provided with the heat radiating fins, both sides of openings at the lower parts of heat radiating main bodies of the heat radiating fins respectively stretch outwards to form mounting feet, and the mounting feet are arranged in the heat radiating fin installation grooves. The tops of the heat radiating main bodies of the heat radiating fins are provided with a list of heat radiating holes. Strip heat radiating grooves communicated with the openings at the lower part of the heat radiating main bodies are arranged crosswise and centrally on the heat radiating substrate. The invention has the advantages of small material consumption and light weight because the heat radiating substrate and the heat radiating fins of the hear radiator can be of split structures, and good heat radiating effect of heat radiating holes arranged in the structure and the heat radiating fins, and is applicable for the heat radiation of various LED lamps.
Owner:安徽世纪金元光电有限公司

Combined micro-channel structure

The invention relates to a Y-shape and multi-square combined micro-channel structure, and belongs to the machining field of micro-channel heat dissipation. The combined micro-channel structure comprises a heat dissipation alloy plate, a combined micro-channel structure body and a heating chip. Due to the fact that the design of the channel structure is extremely special, the flow rate and the mixing effect of micro-channel fluid can be promoted, such that the reaction rate of nanofluid in a micro-channel can be guaranteed, and the channel structure has use advantages and characteristics in the field of micro-channel nanofluid heat dissipation. The combined micro-channel structure is simple in structure, flexible in size, easy to implement, not high in manufacturing cost and wide in practicability.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Hollow polygon prism-shaped heat exchanger

The hollow polygon prism-shaped heat exchanger comprises a polygon prism main body connected with a heat source, the polygon prism main body is provided with a refrigerant flow channel parallel to the axial direction of the polygon prism main body, and the refrigerant flow channel is filled with foam metal; the polygon prism body is further provided with an inlet allowing refrigerants to flow in and an outlet allowing the refrigerants to flow out, the refrigerants enter the refrigerant flow channel through the inlet, and the refrigerants in the refrigerant flow channel flow out of the refrigerant flow channel through the outlet after heat exchange between the refrigerants in the refrigerant flow channel and a heat source is completed. A through first air channel is formed in the middle of the polygon prism main body and is provided with an axial flow fan; the air guide cover is arranged outside the polygon prism body in a sleeving mode, and a second air channel communicated with the first air channel is formed between the outer wall of the polygon prism body and the inner wall of the air guide cover. According to the heat exchanger, the foam metal is filled in the refrigerant flow channel, the refrigerant is boiled and exchanges heat in the foam metal, meanwhile, the air guide cover and the axial flow fan are integrated, forced convection heat exchange is conducted, and the heat exchange efficiency of the heat exchanger is greatly improved.
Owner:ZHEJIANG UNIV
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