55results about How to "Guaranteed Thermal Performance" patented technology

The invention discloses a process for constructing a metal roof of a building with super-large space. The process includes steps of 1), laying a steel lining plate on the lowermost layer of a roof structure; 2), laying a non-woven dustproof layer on the lining plate; 3), laying a glass wool sound absorbing layer on the non-woven dustproof layer and compacting the glass wool sound absorbing layer; 4), laying a vapor barrier on the glass wool sound absorbing layer; 5), laying lower-layer glass wool on the vapor barrier and compacting the lower-layer glass wool; 6), laying upper-layer heat-insulation rock wool on the lower-layer glass wool and compacting the upper-layer heat-insulation rock wool; 7), mounting support purline; 8), laying supporting steel plates; 9), laying a gypsum fiber board; 10), laying a waterproof vapor-permeable layer on the gypsum fiber board; 11), laying an ultrafine glass cotton anti-noise layer on the waterproof vapor-permeable layer; 12), mounting an aluminum-magnesium-manganese alloy roof panel on the uppermost layer of the roof structure. The process for constructing the metal roof has the advantages that a waterproof effect of the metal roof is improved, water seepage at pierced positions is prevented, outdoor noise is prevented from being transmitted into a room, and heat-insulation, damp-proof and vapor-permeable effects of the metal roof are improved.

The invention belongs to the technical field of heat management, in particular to a heat management system and a control method thereof, and a charging and battery replacing station. In order to solvethe problem of energy wastage during battery charging, the heat management system according to the present invention includes a coolant circulation device, the coolant circulating device includes a circulating line for circulating the coolant, a thermal management system for managing temperatures of a first target body and a second target body disposed in the circulation pipe, The thermal management system further includes a control unit capable of acquiring the temperature of the first target body and controlling the coolant circulation device according to the temperature of the first targetbody to adjust the flow path of the coolant in the circulation pipe, and thus adjust the order of the coolant passing through the first target body and the second target body. The invention can effectively utilize the heat generated by the first target main body or the second target main body, thereby avoiding the phenomena of waste of heat and large power consumption caused by the fixed flow direction of the coolant.

The invention discloses a thermal insulation block brick, which comprises a block brick body and further comprises a vacuum thermal insulation body. The block brick body is provided with a thermal insulation body containing cavity. The vacuum thermal insulation body is arranged in the thermal insulation body containing cavity. The thermal insulation body containing cavity is a blind hole or a through hole or a through groove. The vacuum thermal insulation body is provided with a wrapped body. The wrapped body forms a vacuum closed space. A space support is arranged on the inner wall or the inner cavity of the wrapped body. Furthermore, the space support can be used for supporting the wrapped body to form a vaccumized space; or the wrapped body is supported itself to form the vaccumized space; and the vaccumized space in the wrapped body is vacuum. According to the thermal insulation block brick disclosed by the invention, the thermal property of a wall body can be ensured; furthermore, the comprehensive cost of the wall body can be reduced.

The invention belongs to the technical field of architectural decoration, and discloses an external heat insulating system of an external wall thinly plastered with a polyphenyl plate and a construction method thereof. The external heat insulating system of the external wall thinly plastered with the polyphenyl plate comprises the polyphenyl plate, a protecting layer and a finishing coat which are arranged on the foundation wall body sequentially; a gap is reserved between two adjacent heat insulating plates; air exhaust grooves with openings towards the foundation wall body are arranged in the gaps, and the air exhaust grooves at the intersecting part of the gaps are communicated with each other; the back of the air exhaust groove is provided with a filler; and the air exhaust groove is provided with vents so that the air exhaust groove is communicated with the gap between the polyphenyl plate and the foundation wall body. The external heat insulating system of the external wall has the advantages that hydrosphere inside a building can be released to the atmosphere in time, so as to avoid vapor from condensing between the polystyrene heat insulating plate and the wall body, and between the heat insulating layer and the protecting layer; the finishing coat is effectively prevented from frothing and cracking; and the thermal performance of the external heat insulating system is ensured.

The invention provides a performance and structure design method, a performance monitoring method and a structure safety monitoring method for a high-pressure cylinder and a medium-pressure cylinder of an air-cooled high-parameter steam turbine. The power and thermal performance of the high-pressure cylinder and the medium-pressure cylinder of the air-cooled high-parameter steam turbine are ensured through new technologies of steam inlet and exhaust parameter design, flow and structural size modular design, enthalpy drop optimal distribution, variable reaction degree design and the like of thehigh-pressure cylinder and the medium-pressure cylinder in the design stage. Structural safety of the high-pressure cylinder and the medium-pressure cylinder of the air-cooled high-parameter steam turbine is guaranteed through new technologies of structural design, material design, moving blade strength vibration design, rotor creep and strength and service life design, inner cylinder creep and strength and service life design, air cylinder tightness design and the like of the high-pressure cylinder and the medium-pressure cylinder in the design stage. The technical effect of optimizing and controlling the thermal performance and the structural safety performance of the high-pressure cylinder and the medium-pressure cylinder of the air-cooled high-parameter steam turbine through a designmonitoring method of performance optimization and structural improvement is achieved.

The invention relates to a graphite-metal heat conduction composite material and a preparation method thereof. The graphite-metal heat conduction composite material comprises a metal base body and a graphite composite body distributed in the interior and / or the surface of the metal base body. The graphite composite body comprises graphite particles, a carbide layer and a carbide forming element layer, wherein the carbide layer is combined to the surfaces of the graphite particles, and the carbide forming element layer is combined to the surface of the carbide layer; carbide forming elements comprise B, Si, Cr, W and Mo; carbides comprise a boron carbide, a silicon carbide, a tungsten carbide, a chromium carbide and a molybdenum carbide; and the graphite composite body is combined with the metal base body through the carbide forming element layer. The composite material has the excellent performance and is widely applied.

The invention provides a copper-plated graphite film reinforced copper-based laminated block composite material and a preparation method thereof. The composite material is the laminated block composite material composed of a copper-plated graphite film and a copper foil. The preparation method of the copper-plated graphite film adopts improved electroless plating to obtain a coating with good bonding and being controllable and uniform and clean; and the preparation method of the composite material adopts vacuum hot pressing sintering, so that requirements on equipment are low, and the operation is simple. The thermal conductivity of the composite material prepared by the preparation method exceeds 1000 W / (m.K), a coefficient of thermal expansion can be lower than 10 ppm / K, and the composite material is a promising thermal management material with both bending strength and advantages of metal materials and graphite materials.

An insulating elastic water-proof wall for building is constructed through treating the basic layer, brushing interface layer, plastering insulating layer twice, coating an elastic water-proof layer, spreading non-woven polyester fabric, coating an elastic water-proof layer, and coating elastic decorative layer. Its advantages are high effect and no bubbling and cracking.

The invention belongs to the technical field of organic compounds, and relates to a diacid monomer containing a diphenylamine-fluorene structure, a preparation method and application thereof for preparing polyamide with the electrochromism performance. The synthetic method comprises the two steps that 2-aminofluorene with a substituent group at the bit 9 and p-fluorobenzonitrile are subjected to a nucleophilic substitution reaction under the effect of cesium fluoride to obtain a nitroamiline compound containing the diphenylamine-fluorene structure; then, under the effect of potassium hydroxide, basic hydrolysis is performed to obtain the diacid monomer containing the diphenylamine-fluorene structure. The diacid monomer and various diamine monomers are subjected to a reaction to obtain polyamide with the electrochromism performance. Due to the specific structure of the diacid monomer, the obtained polymer has the good solubility and unique photoelectric property; the diacid monomer and the polyamide prepared by the diacid monomer have the huge application prospect in the fields such as electrochromism.

The invention relates to a novel light aggregate concrete building block and a using method thereof. The building block comprises a light aggregate concrete small-sized cavity block provided with a cavity bore. The building block is characterized in that: an insulation board is inserted into the cavity bore. The novel light aggregate concrete building block has the advantages of high strength, high thermal insulation performance, capability of consuming local waste, convenient transportation and masonry, and fewer common faults of wall quality, is the novel wall building block, is suitable for large-scale popularization and application, and has obvious economic benefit.

A liquid-cooled LED (light-emitting diode) lamp comprises a lampshade, a light source component and a radiating device. The lampshade covers a radiator and encloses a sealed space, the light source component is contained in the sealed space, the radiating device comprises a heat conductor, a radiator and radiating fins, the light source component is fixedly arranged in the heat conductor, the lampshade is connected with the radiator, the radiator is provided with a containing cavity filled with radiating liquid, the heat conductor is hermetically connected with the containing cavity, at least part of the heat conductor is inserted into the containing cavity, and the radiating fins are arranged on the radiator. As the radiating liquid is high in uniformity and heat capacity, heat generated by an LED bulb in operation can be uniformly absorbed by the radiating liquid, and damage to the LED lamp caused by incapability of dissipating a large amount of heat in a short time due to small heat capacity is avoided.

The invention discloses a metal roof of a building with super-large space. The metal roof is characterized in that an ultrafine glass cotton anti-noise layer is filled between an aluminum-magnesium-manganese alloy roof panel and a gypsum fiber board, support purline is arranged at the bottom of supporting steel plates and supports the supporting steel plates, a non-woven dustproof layer is laid on a lining plate, a glass wool sound absorbing layer is arranged on the non-woven dustproof layer, heat-insulation cotton is filled between the glass wool sound absorbing layer and the support purline, a vapor barrier is arranged between the heat-insulation cotton and the glass wool sound absorbing layer, and a waterproof vapor-permeable layer is arranged between the ultrafine glass cotton anti-noise layer and the gypsum fiber board; the waterproof vapor-permeable layer is compressed by aluminum alloy supports, the aluminum alloy supports are fixed onto the supporting steel plates under the aluminum alloy supports by self-tapping screws, heat-insulation cushions are laid under the bottom surfaces of the aluminum alloy supports, and butyl rubber tapes are arranged among the heat-insulation cushions and the waterproof vapor-permeable layer. The metal roof has the advantages that a waterproof effect of the metal roof is improved, water seepage at pierced positions is prevented, outdoor noise is prevented from being transmitted into a room, and heat-insulation, damp-proof and vapor-permeable effects of the metal roof are improved.

The invention relates to the inversion power module and particularly relates to a three-phase inversion power module based on a two-way spiral flow channel water cooling heat radiation substrate. The three-phase inversion power module based on the two-way spiral flow channel water cooling heat radiation substrate solves problems that a present heat radiation flow channel is not reasonable, poor in heat radiation, big in size and weight and not easy to perform fast plug-pull installation. In the scheme of the three-phase inversion power module based on the two-way spiral flow channel water cooling heat radiation substrate, a three-phase inversion power circuit is arranged on the two-way spiral flow channel water cooling heat radiation substrate; a T-shaped composite mother board and a drive board are stacked on the two-way spiral flow channel water cooling heat radiation substrate; a support seat is arranged in the front edge of the two-way spiral flow channel water cooling heat radiation substrate; water connectors and fixed blocks are arranged on two sides of the two-way spiral flow channel water cooling heat radiation substrate; and screw rods and a handle go through the fixed blocks. The advantages of the three-phase inversion power module based on the two-way spiral flow channel water cooling heat radiation substrate has advantages that flow resistance of a cooling liquid is small and heat radiation is uniform; the water connectors are easy to mount and dismount without affecting processing accuracy; and the layout is not affected by the flow channel; circuit electric inductance is small and working reliability of a thermal performance power module is high. Furthermore, the three-phase inversion power module based on the two-way spiral flow channel water cooling heat radiation substrate is compact in layout, small in volume and light in weight, saves cost; the interfaces are preposed in sequence, which is easy to maintain and saves external fast connection device; and a driving signal is high in anti-interference.

The invention discloses an aqueous solution type lithium iron phosphate positive electrode adhesive, and a preparation method and application thereof. The aqueous solution type lithium iron phosphatepositive electrode adhesive is an aqueous solution, and the solid content is 3-15%; at 25 DEG C, the viscosity of the aqueous solution type lithium iron phosphate positive electrode binder is 5000-100000 cp, and the pH value is 6-8; the aqueous solution type lithium iron phosphate positive electrode adhesive comprises the following components in parts by mass: 10-20 parts of low-grade unsaturatedcarboxylic acid, 8-15 parts of acrylamide and derivatives thereof, 5-20 parts of water-soluble acrylate, 5-10 parts of (methyl) acrylate phosphate ester, and 0.1-0.4 part of initiator. Compared with the prior art, a single-component aqueous solution system is adopted, compared with a multi-component blending solution, the storage and use stability is better, the formula is simpler, and preparationis easy and convenient; in the aspect of components, acrylic acid, acrylate, acrylamide and other monomers are adopted for copolymerization, and the product has better thermal stability than polyvinyl alcohol, CMC and other water-soluble polymers.

The invention provides a thermal superconducting plate and a thermal superconducting heat sink. A plurality of mutually independent closed cavities is formed in the thermal superconducting plate, andeach of the closed cavities is extended from one side of the thermal superconducting plate to the opposite side, and is internally provided with a thermal superconducting heat transfer channel which is filled with a heat transfer working medium. The thermal superconducting plate is internally provided with a plurality of mutually independent closed cavities to form a plurality of mutually independent thermal superconducting heat transfer channels, even though one thermal superconducting heat transfer channel generates the problem of leakage of the heat transfer working medium, the normal heatdissipation of the other thermal superconducting heat transfer channels cannot be influenced, the heat dissipation performance of the thermal superconducting plate is ensured, and the reliability of the thermal superconducting plate is improved.

The invention provides a polyimide precursor, a polyimide film, a preparation method of the polyimide film and a display device; the polyimide precursor is synthesized in ionic liquid by using sulfonated diamine, dianhydride and hydrophilic nano silicon dioxide, and the polyimide film containing nano silicon dioxide is prepared by using the polyimide precursor. The polyimide film has good mechanical properties and heat resistance, the 1% thermal weight loss temperature is 430-540 DEG C, the glass transition temperature is 330-480 DEG C, the tensile strength is 220-450 MPa, the transmittance at400 nm is 60-86%, and an effective solution is provided for the defects of polyimide as a transparent substrate or a transparent cover plate at the present stage.

The invention relates to a blank formula of a fuse ceramic shell using a waste material recycled from isostatic pressing electroceramics and a preparation method thereof. The blank comprises following components in parts by mass: 85-90 parts of waste material recycled from isostatic pressing electroceramics, 10-15 parts of feldspar, 0.3-0.5 part of water reducing agent and 0.8-1.2 parts of additive. The fuse ceramic shell is prepared from the raw materials through steps of grinding, sieving, deironing and so on. Due to adoption of the waste material recycled from isostatic pressing electroceramics, the water reducing agent and additive as well as the feldspar as the fluxing agent, the performance of the ceramics is effectively guaranteed, the costs of the raw materials and manufacture are lowered, the performance requirements of the ceramics are met, and excellent effects of the ceramics are achieved.

The invention discloses a log cabin wall heat-insulation connection assembly. The log cabin wall heat-insulation connection assembly comprises planks, U-shaped heat-insulation connection components, straight type surface fastening buckles, bent type surface fastening buckles and an isosceles trapezoid wood beam; the U-shaped heat-insulation connection components and the straight type surface fastening buckles are used for splicing two planks which are 180 degrees; and the U-shaped heat-insulation connection components, the bent type surface fastening buckles and the isosceles trapezoid wood beam are used for splicing two planks of a certain angle. Wooden grooves of the planks are directly connected with tenons of the U-shaped heat-insulation connection components; and the straight type surface fastening buckles and the bent type surface fastening buckles tightly buckle thickened type equal leg angle steel components on the U-shaped heat-insulation connection components through hook structures at the two ends of the straight type surface fastening buckles and the bent type surface fastening buckles. A heat-insulation structure and a heat-insulation material are used for cutting off a heat bridge, an elastic material layer is used for fastening the connection part, and the log cabin wall heat-insulation connection assembly is a log cabin wall which is convenient to mount and dismount, firm in connection, good in heat-insulation performance and suitable for meeting various modeling requirements.

The invention discloses an integral double-pressure-bearing solar water heater which comprises a support, a water tank shell, a thermal insulating layer, a heat exchange jacket, a heat-conducting interfacial packing layer and an inner heat storage container, wherein a short heat-exchange working medium circulating tube used for connecting a pressure-bearing solar vacuum heat collecting tube is arranged on the heat exchange jacket, the heat exchange jacket is provided with a heat-exchange working medium filling port and a heat-exchange working medium overflow port, and the heat-exchange working medium circulating tube communicates the pressure-bearing solar vacuum heat collecting tube and an cavity of the heat exchange jacket. A cold water inlet tube and a hot water outlet tube are connected on the inner heat storage container. The heat exchange jacket is tightly attached too the inner heat storage container through the heat-conducting interfacial packing layer. Heat collection and heat storage of the integral double-pressure-bearing solar water heater provided by the invention respectively and independently operate in a closed type, use water is used by bearing pressure, the use water can not be polluted due to the seepage of a heat exchange working medium, the use water is sanitary, and the system is safe and reliable. The entire system has reasonable structural design, low cost, high cost performance and long service life.

The invention provides a network signal transmitter-receiver set comprising a shell, an antenna connected with the shell, and a main board installed in the shell, wherein a wifi module is integrated on the main board, the antenna is connected with the wifi module, and a plurality of heat dissipation holes are formed in the upper end face of the shell. The network signal transmitter-receiver set also comprises an installation board extending leftwards and rightwards, bristles fixed on the lower end face of the installation board, and support boards fixed on left and right sides of the shell, wherein the installation board is positioned on the upper side of the shell, the lower end of the bristles are in contact with the upper end face of the shell, and the installation board can move horizontally in forward and backward directions; sliding blocks are fixed on left and right sides of the installation board, sliding chutes extending in forward and backward directions are formed on the inner sides of the support boards, and the sliding blocks are matched with the sliding chutes. In the network signal transmitter-receiver set, the installation board moves horizontally in forward and backward directions, so as to drive the bristles to move in forward and backward directions, so that dust accumulated on the upper end face of the shell is automatically cleared away, the heat dissipation holes are effectively prevented from being blocked by the dust, and thus the heat dissipation performance of the network signal transmitter-receiver set is ensured.

The invention discloses a fabricated type purlin-equipped roof for a box type modularized house and an installation method. The fabricated type purlin-equipped roof for the box type modularized housecomprises a first roof and a second roof, wherein the first roof is positioned right above an inner cavity of the box type modularized house, and the second roof is positioned above the first roof. The fabricated type purlin-equipped roof for the box type modularized house integrates multiple functions of roofs, a standardized integrated purlin-equipped roof module is formed by minor improvement on the basis of a standardized module, the assembly efficiency is improved, and the construction speed is increased. The connection difficulty caused by a non-standardized module is overcome. The roofserves as an independent module, thermotechnical performance of a building is guaranteed, structural slope formation is realized via a way that a second keel, a purlin holder and a purlin of the roofmodule are matched with each other, and materials are saved.

The invention discloses an ether-based refrigerant. The ether-based refrigerant is prepared from the following raw materials in parts by weight: 80 to 85 parts of dimethyl ether, 3 to 5 parts of castor oil, 2 to 5 parts of liquid carbon dioxide, 2 to 5 parts of isobutyl alcohol and 5 to 10 parts of trifluoroiodo methane. The ether-based refrigerant provided by the invention takes the liquid carbon dioxide and the trifluoroiodomethane as flame retardants; the thermo-engineering property of the refrigerant can be guaranteed and the combustibility of the refrigerant is reduced, so that the safety performance of the ether-based refrigerant is improved, and the filling amount of the refrigerant is increased; the ether-based refrigerant provided by the invention adopts the industrial castor oil and is used for lubricating a compressor, and the corrosiveness on a refrigeration system by the dimethyl ether can be reduced; meanwhile, the flowability of the ether-based refrigerant is improved; the isobutyl alcohol is used as a dispersant of the ether-based refrigerant, so that all the components can be uniformly dispersed and a condition that the super-cooling degree of the dimethyl ether is small is relieved; meanwhile, a flash evaporation degree is slowed down and gasification latent heat of the dimethyl ether is expressed to the greatest extent, so that the use amount is reduced.

The invention discloses a preparation method of a cement-based paraffin phase change energy storage material, which comprises the following steps: emulsifying paraffin, uniformly dispersing the emulsified paraffin with small particle size in water to prepare an oil-in-water emulsion with stable performance, diluting the emulsion, compounding the diluted emulsion with a cementing material, adding a water reducing agent to improve the flowability of the phase-change energy storage material, and packaging the phase change material through hydration hardening of the cementing material, so as to prepare the phase change energy storage material. The phase change material in the cement-based phase change energy storage material prepared by the invention is uniform in dispersion, excellent in mechanical and thermal properties, good in packaging effect and excellent in durability.

The invention relates to the technical field of sofa cloth and particularly relates to warm-keeping sofa cloth. The warm-keeping sofa cloth is woven by virtue of warp yarns and weft yarns, wherein the warp yarns are formed by blending polyester yarns, spandex yarns and cotton yarns, and the weft yarns are formed by blending aramid yarns, the cotton yarns and acrylic yarns; and the mass ratio of the polyester yarns to the spandex yarns to the cotton yarns in a unit length of the warp yarn is 1 to 1 to 3, the mass ratio of the aramid yarns to the cotton yarns to the acrylic yarns in a unit length of the weft yarn is 1 to 4 to 2, and the surfaces of the warp yarns and the weft yarns are adhered with nano-activated carbon particles. According to the warm-keeping sofa cloth, by reasonably blending the yarns, the firmness of the yarns can be guaranteed, and the warm-keeping performance of the yarns can be guaranteed; and meanwhile, the surfaces of the yarns are adhered with the nano-activated carbon particles, and therefore, the roughness of the surfaces is formed, so that the contact area between the yarns and a human body is greatly reduced, and the warm-keeping sofa cloth has no ice-cold feel and has relatively good warm-keeping performance and warmness.

The invention relates to a poly (cyclohexene carbonate) copolymer and a preparation method thereof, the poly (cyclohexene carbonate) copolymer is a B-(AB) n type segmented copolymer composed of a chain segment A and a chain segment B, and n = 1, 3 or 5; the chain segment A is a biodegradable aliphatic polyester chain segment, and the chain segment B is a polycarbonate cyclohexene ester chain segment; the chain segment B is formed by carrying out copolymerization reaction on carbon dioxide and 1, 2-cyclohexene oxide by taking biodegradable aliphatic polyester C with double-side active terminals (double-side hydroxyl or double-side carboxyl) as a macromolecular chain transfer agent; according to the preparation method, the chain segment B is synthesized in a block polymerization mode of adding the macromolecular chain transfer agent for K times, and the poly (cyclohexene carbonate) copolymer is obtained. According to the invention, the problem that the thermal performance of the material is deteriorated while the toughness of the polycarbonate cyclohexene ester is improved in the prior art is effectively solved.