381results about How to "Fast heat conduction" patented technology

The invention belongs to the technical field of polymer plastic materials, and particularly relates to a high-temperature-resistant anti-corrosion polytetrafluoroethylene material and a preparation method thereof. The polytetrafluoroethylene is prepared from the following raw materials in parts by weight: 50 to 60 parts of polytetrafluoroethylene, 5 to 10 parts of fluorinated modified graphene oxide, 3 to 5 parts of aluminum powder, 5 to 8 parts of modified silicon carbide fiber, 3 to 5 parts of silane modified nano silicon dioxide, 2 to 3 parts of polyphenylene sulfide, 2 to 3 parts of polyimide, 0.5 to 0.8 part of dispersing agent and 0.5 to 1 part of antioxidant. The heat conduction performance and the interface bonding force are improved through the fluorinated modified graphene oxide, the impact resistance and the wear resistance are enhanced through the silicon carbide fibers, and the corrosion resistance and the wear resistance are improved through the aluminum powder; silane modified silicon dioxide enhances the mechanical property of the composite material by improving the dispersity of the filler, and PPS and PI interact with the surface of the filler through polar groups in molecular chains, so that the interface strength is improved, and the toughness and the thermal stability are improved.

The invention relates to the technical field of computer power supplies, in particular to a high-power ATX power supply module which comprises a power supply body, a power interface is formed in one end of the power supply body, an output interface is formed in the other end of the power supply body, a vapor chamber is horizontally arranged in the power supply body, and an evaporation end at one end of the vapor chamber is in contact with a heating component in the power supply body. A capillary plate and a supporting column are arranged in the vapor chamber, a conical opening is formed in the bottom of the supporting column, the large end of the conical opening faces downwards, and a plurality of circulating holes are formed in the side wall of the conical opening, so that a liquid working medium evaporated at the bottom of the supporting column is not affected by the supporting column; compared with a traditional supporting column, the supporting column has smaller influence on steam flowing, so that the temperatures of the two ends of the vapor chamber are close, the heat conduction effect of the vapor chamber is improved, and the overall heat dissipation effect of the power module is also improved.

The invention discloses an adsorption heat storage material with a multi-stage stepped pore structure and a preparation method of the adsorption heat storage material, according to the material, a metal foam matrix is combined with the multi-stage pore structure, and the storage and release efficiency of heat energy is remarkably improved. Specifically, the metal foam matrix is composed of a plurality of metal foam layers with different porosities, and the porosities are gradually increased in the heat source direction, so that the heat resistance is effectively reduced, and the diffusion of adsorbate is accelerated. The adsorbent coating is coated with an adsorption material mixture containing a template agent, and is subjected to drying and roasting treatment to form a multi-stage pore structure comprising macropores, mesopores and micropores, so that the adsorption diffusion speed and the adsorption capacity are improved. The material not only improves the heat energy storage and energy release capabilities, but also optimizes the diffusion rate of adsorbate. According to the preparation method, through simple and convenient processes such as splicing of the metal foam layer and coating of the adsorbent, the production cost is reduced, the preparation process is efficient and controllable, and wide application prospects are achieved.

The invention discloses a super-hydrophobic anti-icing coating for a power transmission line and a preparation method, and belongs to the technical field of preparation of anti-icing coatings. The super-hydrophobic anti-icing coating for the power transmission line is composed of a coating wrapping the surface of the power transmission line, and the coating is composed of the following components in parts by weight: 34-45 parts of composite resin, 8-14 parts of a composite ice melting agent, 10-18 parts of deionized water, 1-3 parts of hexadecyl trimethoxy silane and 50-58 parts of tetrahydrofuran, the composite resin is prepared from carboxyl multi-walled carbon nanotubes, isopropanol, tetraethoxysilane, a silane coupling agent KH-550, perfluorodecyl trimethoxysilane, butyl acrylate, methyl methacrylate and dodecafluoroheptyl methacrylate, and the composite ice melting agent is prepared from pyridine-2, 6-dicarboxylic acid, thionyl chloride and nicotinic acid hydrazide. The coating prepared by the method has excellent hydrophobicity, wear resistance and anti-icing effect.

The invention provides a preparation method of a PI / SiO2 modified PET (Polyethylene Terephthalate) high-temperature-resistant composite release film, which comprises the following steps: S1, preparing a polyamide acid fiber film by using a polyamide acid precursor solution as an electrostatic spinning solution and adopting an electrostatic spinning method; s2, applying a drawing force to the polyamide acid fiber membrane at a preset temperature for hot drawing, and then carrying out thermal imidization treatment to obtain a PI nanofiber membrane; s3, adding PET into a mixed solvent of phenol and tetrachloroethane, and stirring until the PET is completely dissolved to obtain a PET solution; s4, adding strawberry-shaped SiO2 gel microspheres into the PET solution, and uniformly stirring to obtain a PET composite solution; and S5, adding the PI nanofiber membrane prepared in the step S2 into a mold, fixedly paving, blade-coating the PI nanofiber membrane with the PET composite solution, and removing the solvent to obtain the high-temperature-resistant release film. According to the invention, the PI electrostatic spinning film is matched with the strawberry-shaped SiO2 gel microspheres, so that the PET release film has better temperature resistance.

The invention discloses a phase change heat transfer motor stator heat dissipation structure and a design method, and belongs to the technical field of motor heat management, the structure comprises a stator iron core, a copper wire winding and a flattening type phase change heat transfer device, the copper wire winding is arranged on the inner side of the stator iron core, and the flattening type phase change heat transfer device is arranged on the outer side of the stator iron core; the flattening type phase change heat transfer device is arranged in a groove, in contact with the stator core, in the radial interior of the copper wire winding. The invention further discloses a design method of the heat dissipation structure. By adopting the heat dissipation structure and the design method, the thermal control technology of the motor stator winding is researched and developed based on the phase change heat transfer device, and the purposes of greatly reducing the peak temperature of the motor, enhancing the temperature uniformity of the motor and realizing high-overload-multiple safe operation are achieved.

The invention relates to the technical field of cable manufacturing, in particular to a superconducting coaxial cable for a quantum computer and a manufacturing method thereof, and the method comprises the steps: coating an inner conductor with an inner insulating layer to form an inner conductor layer, and electroplating a niobium compound coating on the inner wall of a stainless steel tube to form an outer conductor; forming a cable conductive layer; acquiring an advancing speed change curve of a single inner conductor layer; determining a first velocity mutation type and a second velocity mutation type; determining the vertical stirring speed of the electroplating stirring rod at the position of the outer conductor; electroplating the inner wall of the stainless steel pipe; according to the friction degree of the inner conductor layer and the outer conductor, determining an inner conductor motion adjusting mode, including adjusting the moving speed of the inner conductor layer in the outer conductor, or determining the initial rotating speed of the inner conductor layer when the outer conductor starts to pull a wire; and performing wire drawing on the sleeved outer conductor to form the cable. According to the invention, the stability of cable assembly is improved.

The invention discloses a manufacturing method of a new energy power battery cooling liquid capable of improving storage stability, and belongs to the technical field of battery anti-freezing solutions, and the new energy power battery cooling liquid comprises the following auxiliary agent components and components: a) ethylene glycol which is used as a basic solvent and accounts for 40-50% of the total mass; b) deionized water accounting for 50%-60% of the total mass; c) an organic corrosion inhibitor which is selected from benzotriazole, mercaptobenzothiazole or a mixture of benzotriazole and mercaptobenzothiazole and accounts for 0.3-0.5% of the total mass; d) an antioxidant which is selected from di-tert-butyl-p-cresol, triphenyl phosphite or a mixture thereof and accounts for 0.1-0.2% of the total mass; the anti-foaming agent is selected from polydimethylsiloxane, silicone oil or a mixture of the polydimethylsiloxane and the silicone oil and accounts for 0.01%-0.05% of the total mass; and f) a pH regulator which is selected from sodium hydroxide, potassium hydroxide or a mixture thereof, is used for regulating the pH value of the cooling liquid to a suitable range of 7-9, and accounts for 0.05-0.15% of the total mass. The cooling liquid disclosed by the invention can keep the stability of key indexes such as conductivity, pH value, corrosion inhibition performance and oxidation resistance in a long-term storage process, so that the storage stability of the cooling liquid is remarkably improved.

The utility model belongs to the technical field of brake discs, and particularly relates to a split heat dissipation type brake disc which comprises a first disc body and a second disc body, a plurality of supporting blocks are fixedly arranged between the first disc body and the second disc body, a plurality of blocking frames are fixedly arranged on the first disc body, and a brake disc hub is fixedly arranged on the face, away from the second disc body, of the first disc body. The surface of the first disc body and the surface of the second disc body are each provided with a plurality of rows of heat dissipation holes and a plurality of through grooves, twelve rows of heat dissipation holes are formed, the number of each row of heat dissipation holes is three, the number of the through grooves is five, and the through grooves are annularly arrayed in the first disc body and the second disc body at equal intervals. By arranging the brake disc hub, the blocking frame and the connecting plate, the disc body and the brake disc hub can be rapidly separated, a traditional integrally-formed brake disc is replaced, the heat conduction speed of the brake disc can be increased, the disc body can be independently detached and replaced, and the use cost of equipment can be reduced.

The invention belongs to the technical field of power supply cable design and processing, and particularly relates to a high-thermal-conductivity multi-layer structure cable which comprises an insulation shielding wire core, and the insulation shielding wire core comprises a conductor wire core, an insulation layer tightly wrapping the conductor wire core and a shielding layer tightly wrapping the insulation layer. The cable further comprises an outer sheath layer tightly wrapping the insulation shielding wire cores. Wherein modified heat-conducting carbon fibers are dispersed and doped in the outer sheath layer, and stable chemical connection exists between the heat-conducting carbon fibers, so that improvement of the heat conduction effect of the sheath is facilitated; and the insulating layer and the outer sheath layer are formed by melting a resin mixture, directly extruding the resin mixture on the surface of the inner layer and then cooling, so that the contact tightness between the layers is ensured, and the continuity of heat conduction is ensured.

The invention discloses a tundish cover castable, and relates to the technical field of tundish refractory materials. The tundish cover castable is prepared from the following raw material components in percentage by mass: 7.8 to 9.6 percent of alumina of 8 to 5mm, 2.6 to 4.3 percent of alumina of 5 to 3mm, 2.6 to 4.3 percent of alumina of 1 to 0mm, 17.4 to 20.8 percent of alumina of 200 meshes, 9.6 to 13 percent of mullite of 5 to 3mm, 22.6 to 26 percent of mullite of 3 to 1mm, 9.6 to 13 percent of mullite of 1 to 0mm, 7 to 8.7 percent of mullite of 200 meshes, 2.6 to 3.5 percent of composite binding agent, 0.8 to 1.7 percent of aluminum silicate, 0.05 to 0.07 percent of SiC nanowire, 0.2 to 0.3 percent of aluminum titanate and the balance of water. The invention discloses a tundish cover castable which comprises the following components in percentage by weight: 0.4-0.7% of alumina micro powder, 0.08-0.11% of sodium tripolyphosphate, 2.6-3.5% of silica fume, 0.87% of steel fiber and 1.3-1.7% of high-alumina cement. Compared with a traditional process, the tundish cover castable has the advantages that the overall performance of the tundish cover castable is remarkably improved, the breaking strength and compression strength of the castable are effectively enhanced, the service life is remarkably prolonged, and the production cost is reduced. And the production cost is greatly saved, and the economical efficiency and the operation rate of continuous casting operation are improved.

The embodiment of the invention provides an ROF photodiode, a manufacturing method thereof and an optical receiver, and belongs to the technical field of photoelectric detection. The ROF photodiode comprises: a wafer substrate; the intrinsic absorption layer is arranged on the upper surface of the wafer substrate; the light-transmitting flat layer is arranged outside the intrinsic absorption layer in a covering manner, and one surface of the light-transmitting flat layer, which is used for receiving the Gaussian light emitted into the ROF photodiode by the optical fiber, is provided with a flat surface; the micro lens is arranged on the flat surface of the light-transmitting flat layer, and the center of the micro lens is aligned with the center of Gaussian light emitted by the optical fiber; gaussian light emitted by the optical fiber is converged after passing through the micro lens, and after the converged Gaussian light passes through the light-transmitting flat layer, the power density peak value is dispersed and weakened, and the converged Gaussian light is converted into flat-topped light to be emitted into the intrinsic absorption layer. According to the ROF photodiode, Gaussian light emitted by the optical fiber is dispersed, weakened and converted into flat-topped light, the electric field suppression effect caused by light power peak value concentration is avoided, the good bandwidth characteristic is guaranteed, and the light response performance is improved.

The invention provides a manufacturing method of a heat sink strip for a high-density interconnected printed circuit board. S1, heat dissipation strips I are manufactured on the core plate; s2, carrying out electroplating treatment on the manufactured heat dissipation strip I, so that the heat dissipation strip I is completely filled with electroplating copper; s3, manufacturing the core board into a laminated board; s4, manufacturing a heat dissipation strip II on the laminated board; s5, carrying out electroplating treatment on the manufactured heat dissipation strip II, so that the heat dissipation strip II is completely filled with electroplating copper; the size of the heat dissipation strip I can be designed according to the shape and size of the heating element, so that the heat dissipation strip I is in large-area contact with the heating element, and heat generated by the heating element is absorbed more uniformly; the heat dissipation strip II is connected with the heat dissipation strip II after being filled with electroplating copper, the heat dissipation strip II and the copper layer in the laminated board form a continuous copper heat dissipation area penetrating through the whole laminated board, and the copper heat dissipation area is good in heat conduction effect and can also play a role in auxiliary supporting. Therefore, the mechanical stability of the whole printed circuit board and the elements adopting the printed circuit board is better, and the risk of damage caused by external force is also reduced.

The invention belongs to the technical field of heat-conducting materials, and particularly relates to a heat-conducting silica gel material and a preparation method thereof.The heat-conducting silica gel material is prepared from, by weight, 20-25 parts of self-healing epoxy resin, 50-60 parts of silica gel, 10-15 parts of GO, 5-10 parts of CNT, 0.5-2 parts of dispersing agent and 2-5 parts of curing agent; the self-healing epoxy resin is prepared from vulcanization-modified epoxy resin and microcapsules containing a repairing agent, introduced disulfide bonds have extremely high self-repairing capacity and can form hydroxyl groups with GO and CNT surface oxidation groups at the same time, so that heat conduction and heat dissipation of the silica gel material are more uniform and stable, and in addition, the self-healing epoxy resin has good self-healing performance. The added GO and CNT form cross-linked structures with different sizes of nanometer and micrometer, so that the overall mechanical strength and tensile property of the silica gel material are further improved, the optimal balance of hardness, toughness and thermal stability can be realized, and multiple requirements in a complex working environment are met.

The invention provides a packaging adapter plate, a preparation method thereof and a packaging structure, and the preparation method comprises the steps: providing a first substrate and a second substrate, bonding the first substrate and the second substrate, obtaining a bonding structure with a micro-channel through hole through a patterned groove formed in the bonding surface of the first substrate and the second substrate, and then, carrying out the packaging of the micro-channel through hole through the patterned groove in the bonding surface of the first substrate and the second substrate. And forming a blind hole in the bonding structure, and finally, forming a metal conductive column in the bonding structure, thereby meeting the electrical connection requirement of the packaging adapter plate. The micro-channel through holes are formed in the packaging adapter plate in an embedded mode in a bonding mode, flowing heat dissipation fluid can be contained through the micro-channel through holes, a transverse heat conduction channel is provided for the packaging adapter plate, the heat conduction capacity of a follow-up packaging structure is effectively improved, and the stability and reliability of the packaging structure are further improved.

The invention provides an underwater sound communication machine and underwater equipment, and relates to the technical field of underwater sound communication machines. The underwater sound communication machine comprises a shell assembly and a circuit board, a cavity is formed in the shell assembly, and a heat-conducting medium is contained in the cavity; the shell assembly is provided with a cavity, the circuit board is arranged in the cavity and connected with the shell assembly, the heat-conducting medium makes contact with the circuit board, and the heat-conducting medium is used for conducting heat generated by the circuit board to the shell assembly and then conducting the heat to water through the shell assembly. According to the underwater sound communication machine provided by the invention, the heat-conducting medium is injected into the shell assembly, the heat-conducting medium is in contact with the circuit board, the contact area between the heat-conducting medium and the circuit board is larger, the heat-conducting medium has excellent heat conductivity and chemical stability, and the heat-conducting medium can conduct heat generated in the working process of the circuit board to the shell assembly; and the heat is conducted into the water through the shell assembly, so that the heat dissipation efficiency is effectively improved, and the underwater sound communication machine can work normally.

The utility model discloses a cathode protection intelligent test pile, which relates to the technical field of gas pipeline multi-parameter data acquisition, and comprises a shell, a quick release device is arranged in the shell, a storage battery is arranged in the quick release device, an electronic device is arranged above the storage battery in the shell, and the electronic device is connected with the storage battery. A pressurizing device is installed at the top end of the shell, a one-way rotating device is installed at the top end of the pressurizing device, and fan blades are rotationally connected to the top end of the one-way rotating device. Fan blades rotate to drive the eccentric rotating wheel to rotate, the first limiting spring pushes the movable end of the sealing block to make close contact with the interior of the sealing shell all the time, after a sealing cavity formed by the sealing shell passes through the air suction hole, the size of the sealing cavity is gradually reduced, and finally air is squeezed into the main body through the air inlet hole; and the air pressure at the electronic device in the shell is increased, so that the heat distribution is more uniform in a high-pressure environment, and the heat dissipation efficiency is improved.

The utility model discloses a multi-layer superposition welding positioning jig for diode chips. The multi-layer superposition welding positioning jig comprises a main body and a cover body, a positioning pin is arranged on one of the main body and the cover body, and a positioning hole is correspondingly formed in the other one of the main body and the cover body; a plurality of jig units are arranged on the main body; the jig unit is provided with a chip placing groove and a connecting tail limiting groove, each corner of the chip placing groove is provided with an avoiding space, and the middle position of the chip placing groove is provided with a through hole penetrating to the bottom of the main body. According to the scheme, the problems that the welding parts are easy to deviate, damage and the like in the multi-layer chip stacking production of the conventional TVS (Transient Voltage Suppression Diode) products are solved; the utility model aims to provide the multi-layer superposition welding positioning jig for the diode chip, which can be used for preventing the deviation of each part caused by solidification welding in a product furnace, and is high in product yield and high in production efficiency.

The present invention discloses a wear-resistant liquid-cooled cable with an ultra-large current load for new energy, and belongs to the technical field of liquid-cooled cable processing. The present invention is used to solve the technical problem in the prior art that the wear resistance of liquid-cooled cables and the heat dissipation efficiency in high-temperature environments need to be further improved. A wear-resistant liquid-cooled cable with an ultra-large current load for new energy includes a plurality of conductors, and the exteriors of the plurality of conductors are sequentially provided with an insulating layer, a shielding layer, and an outer sheath layer; a heat exchange layer composed of a plurality of heat exchange tubes is provided between the shielding layer and the outer sheath layer, and the plurality of heat exchange tubes are all arranged in a spiral shape. The present invention improves the heat exchange performance inside the cable by preparing the insulating layer using a thermally conductive filler, and improves the thermal insulation and wear resistance of the cable outer sheath layer by preparing the cable outer sheath layer by synthesizing a composite polyolefin, thereby obtaining a liquid-cooled cable with high heat exchange efficiency inside, wear resistance outside, and suitable for high temperatures.

The invention belongs to the technical field of pre-hardened die steel, and particularly relates to pre-hardened die steel with a high heat conductivity coefficient and a preparation technology of the pre-hardened die steel. By optimizing the alloy component design and adopting the high-purity triple smelting process, the heat conduction performance is remarkably improved, the heat conductivity coefficient reaches 54 W / m * K, the mold steel with higher heat conductivity compared with traditional mold steel pre-hardened to 38-42 HRC is obtained, and meanwhile the excellent hardness and wear resistance are kept. The die steel not only has higher heat transfer speed and obviously shortens the injection molding cooling time, but also shows extremely high stability and durability in the use process, prolongs the service life of the die and reduces the production cost of enterprises. In addition, due to the excellent physical property, the mold can be suitable for a more complex and finer injection molding process.

The charging port cover electromagnetic lock device suitable for the new energy automobile comprises a charging port box and a charging port cover capable of rotating around a hinge line, a permanent magnet assembly is installed at the front end, and an electromagnetic assembly is arranged on the charging port box. When power is not on, the permanent magnet assembly and the electromagnetic assembly are attracted, and the charging port cover is kept closed. During electrification, the electromagnetic assembly generates a magnetic field which repels the permanent magnet assembly, so that the charging port cover is opened. The charging port box is further provided with a protective cover, a filling groove is formed in the rear end of the protective cover, and the electromagnetic assembly is connected with the containing groove through the terminal interface. And an over-current protector element is arranged in the accommodating groove and is used for heat conduction. And a conduction wire group connected with an external power supply is arranged in the filling groove and is connected in series with the over-current protector element, the terminal interface and the electromagnetic assembly. The resistance of heat generated when the electromagnetic assembly is electrified is increased through the overcurrent protector element, the current intensity is reduced, and heating is reduced. The filling groove is filled with liquefied epoxy resin, and the electromagnetic assembly and the electric connection part thereof are sealed after solidification.

The invention belongs to the technical field of semiconductor testing, and discloses a semiconductor device steady-state thermal resistance testing device which comprises a box body, a control device is arranged on one side in the box body, an operation table is arranged on the other side of the box body, a testing plate is arranged on the top of the operation table, and supporting frames are arranged on the two sides of the operation table. A moving structure is arranged in the middle of the supporting frame, a testing sensor is arranged at the bottom of the moving structure, a testing groove is formed in the middle of the testing plate, and a semiconductor device is arranged in the testing groove. A semiconductor device is clamped and fixed through the clamping block and the moving block, meanwhile, the semiconductor device is cleaned through the cleaning structure, dust and impurities are prevented from adhering to the surface, the surface of the semiconductor device is prevented from being uneven, then the surface of the semiconductor device is evenly coated with heat conduction paste through movement of the scraper, gaps are effectively filled, and the heat conduction efficiency is improved. And meanwhile, the heat conduction effect is enhanced, so that contact thermal resistance is prevented from influencing the test effect.

A method for attaching a terminal (4) to a metal substrate structure (3) for a semiconductor power module (10) comprises providing at least one terminal (4), providing a metal substrate structure (3) having a metal top layer (17), a metal bottom layer (19) and an isolation resin layer (18) disposed between the metal top layer (17) and the metal bottom layer (19). The method further comprises providing at least one blind hole (7) passing through the metal bottom layer (19) and the isolation layer (18) such that the at least one terminal (4) is positioned on the metal top layer (17) opposite the blind hole (7) and the at least one terminal (4) is coupled to the metal top layer (17) by welding.

The utility model relates to the technical field of cooling devices, in particular to a rubber cooling forming device which comprises a supporting frame and a cooling assembly, and the cooling assembly comprises a plurality of stand columns, a plurality of cooling parts, a mounting base, a first motor, a connecting shaft, a plurality of worms, a mounting frame and a cooling fan. The cooling part comprises a rotating shaft, a cooling rod and a worm gear; the rubber product is conveyed to the cooling rod through the conveying belt, the cooling rod absorbs heat to cool the rubber product, and meanwhile, the cooling fan blows air to cool the rubber product, so that the rubber product is rapidly cooled and formed; the first motor drives the connecting shaft to rotate, the connecting shaft drives the worms to rotate, the worms drive the worm wheels to rotate, the worm wheels drive the cooling rods to rotate through the rotating shafts, the cooling rods rotate to enable the rubber products to move, and therefore the rubber products can be rapidly conveyed after the rubber products are cooled and formed.

The invention discloses a composite hydrogel, a composite aerogel, a preparation method and an application. The preparation method of the composite hydrogel comprises the following steps: irradiating a mixed solution A with high-energy rays; wherein the mixed solution A comprises graphene oxide, an inorganic nano material, monomers of acrylic acid and derivatives thereof, water and an alcohol water-soluble compound; the inorganic nano material is selected from one or more of an MXene two-dimensional lamellar material, a metal oxide and a metal sulfide; in the mixed solution A, the content of the graphene oxide is 0.05-10 mg / mL, the mass ratio of the graphene oxide to monomers of acrylic acid and derivatives thereof is 1: (50-1000), and the mass ratio of the graphene oxide to the inorganic nano-material is 1: (0.1-100); the alcohol water-soluble compound accounts for 2-50% of the mixed solution A in percentage by mass. When the composite hydrogel and the composite aerogel are applied to the field of solar photo-thermal water evaporation, an evaporator is not prone to being blocked.

The invention discloses an impact-resistant composite thermal insulation ceramic fiber board and a preparation method thereof, and relates to the technical field of composite materials. The composite thermal insulation ceramic fiber board provided by the invention has the advantages of excellent impact resistance, uniform heat conduction performance and high mechanical strength. The composite board comprises a fiber layer, a ceramic layer and a PVDF honeycomb structure layer, the fiber layer is formed by interweaving ceramic fibers and reinforced fibers, and the reinforced fibers are evenly distributed among the ceramic fibers; the ceramic layer is prepared by mixing ceramic powder and a binder; the PVDF honeycomb structure layer is embedded between the fiber layer and the ceramic layer, and all the layers are tightly combined through secondary hot press molding. The invention solves the problems of poor impact resistance, non-uniform heat conduction and insufficient mechanical strength of the existing composite thermal insulation material, and is suitable for various severe environments.

The utility model relates to the technical field of thermal power generation, and discloses a thermal power generator base which comprises a base body, a water circulation assembly arranged on the left side of the base body, a heat dissipation assembly installed on the front face of the base body, a protection assembly installed on the back face of the base body, and a heat dissipation aluminum plate fixedly connected to the inner side of the base body. Cooling water channels are formed in the inner sides of the heat dissipation aluminum plates, the cooling water channels of every two adjacent heat dissipation aluminum plates are communicated through a connecting pipe, the front face of the bottom heat dissipation aluminum plate is fixedly connected with a water outlet pipe, and the back face of the top heat dissipation aluminum plate is fixedly connected with a water inlet pipe. High-temperature air near the heat dissipation aluminum plate is discharged through the mounting hole, and external low-temperature air enters the inner side of the base main body through the sealing frame, so that the temperature of the air near the heat dissipation aluminum plate is reduced, the temperature difference between the heat dissipation aluminum plate and the nearby air is increased, the heat conduction effect is improved, and heat dissipation of the base main body is accelerated.

The invention discloses a silicon-free polyurethane heat-conducting gel and a preparation method thereof. The silicon-free polyurethane heat-conducting gel comprises a first component and a second component, the first component is prepared from the following components in parts by weight: 0.5 to 2.5 parts of first polyether polyol, 3 to 4.5 parts of first polyester polyol, 0.4 to 0.6 part of a molecular sieve, 0.05 to 0.1 part of a catalyst, 0.3 to 0.5 part of an antioxidant, 0.3 to 0.5 part of a first wetting dispersant and 92 to 94 parts of heat-conducting filler; the second component is prepared from the following components in parts by weight: 1 to 2 parts of second polyether polyol, 0.5 to 1.5 parts of second polyester polyol, 3 to 5 parts of isocyanate, 0.1 to 0.2 part of water removal agent, 0.3 to 0.5 part of second wetting dispersant and 92 to 94 parts of heat conduction filler. The invention provides the silicone-free polyurethane heat-conducting gel which does not contain organosilicone, and the silicone-free polyurethane heat-conducting gel has heat conductivity, flexibility, high temperature resistance, aging resistance and environmental friendliness.

The utility model relates to the technical field of calcining kiln equipment, in particular to a distributing device for a coal gangue activation calcining kiln, which comprises a base, the top of one side of the base is fixedly connected with the bottom of a fixing mechanism, the inner wall of the middle of the base is movably clamped with the outer wall of a hopper, a motor is started to rotate to drive a rotating shaft to rotate, and the rotating shaft rotates to drive the hopper to rotate. The rotating shaft rotates to drive the main transmission shaft to rotate, the main transmission shaft rotates to drive the transmission belt to rotate, the transmission belt rotates to drive the driven transmission shaft to rotate, the driven transmission shaft rotates to drive the feeding pipe to rotate, the feeding pipe rotates to drive the feeding rotating block to rotate, the feeding rotating block rotates to drive the swinging rotating shaft to rotate, and the swinging rotating shaft rotates to drive the swinging bin to rotate. After coal gangue enters the swing bin, the coal gangue can fall into the kiln through centrifugal force of rotation of the swing bin, materials are evenly distributed, the problem that the materials are accumulated in the middle of the activation kiln is effectively solved, stroke ventilation is smooth and even, the material activation reaction is sufficient, and convenience is brought to people.

The utility model discloses a battery module and an energy storage system, the battery module comprises a battery monomer, a heat conduction structural member and a liquid cooling plate, the liquid cooling plate is internally provided with a cooling flow channel, liquid cooling is performed on the battery module through the liquid cooling plate, the liquid cooling has the advantage of high heat conduction speed compared with air cooling, and the battery module can be rapidly cooled; the liquid cooling plates are arranged on the two sides of the heat conduction structural member in the arrangement direction, the liquid cooling plates cool the two sides of the battery module at the same time, cooling liquid stably flows in the cooling flow channels of the liquid cooling plates, the temperature difference of the battery monomers at different parts of the same battery module is reduced, and the safety performance of the battery module is improved. The energy storage system is provided with at least one battery module, the liquid cooling plates of different battery modules are mutually independent, the multiple battery modules do not interfere with one another during liquid cooling, it is guaranteed that each battery module can be effectively cooled, the problem that the temperatures of the battery modules at different positions in the same energy storage system are greatly different is solved, and the energy storage efficiency is improved. And the safety performance of the energy storage system is improved.