257results about How to "Improve insulation efficiency" patented technology

The invention discloses a multi-wall interlayer hollow plastic heat-insulation, cold insulation pipeline, which is composed of an inner pipe wall, a hollow pipe wall, an outer pipe wall which are connected through embedded rebars, and hollow heat-insulation layer arranged between the inner pipe wall, the hollow pipe wall and the outer pipe wall, characterized in that in the hollow heat-insulation layer, atmospheric pressure or negative pressure gases are used or heat-insulation material is filled as heat insulator; each pipe wall and the embedded rebars can be dipped, sprayed, or coated with low-emissivity mixing layer or a functional layer with low emissivity is extrudedly sticked to the inner pipe wall surface of the hollow heat-insulation layer; the outer pipe wall, the hollow pipe wall and the embedded rebars can be manufactured into rebars and walls mixed by plastics, aluminum powder and adsorption getter according to proportion; metal pipes can be embedded into the plastic inner pipe wall, linear expansion difference of which is melt by a compensator or a corrugated pipe; the cross section of the pipelines can be various shapes by using multi-wall composite pipe head extrusion processing or other molding technology; the pipeline is hot-melt by a using a hot-melt clamp, or secured by using a metal pipe outer wall nut and an inner wall nut and a connector, or uses connection method such as flange, cementation, welding or the like.

The invention relates to a cast-in-situ fireproof material of a fireproof door and a manufacturing method of the fireproof door, in particular to a cast-in-situ inorganic gelled material of a fireproof door leaf and a fireproof door frame, comprising the following components by weight percent: 30-60 of magnesia; 17-50 of magnesium chloride solution; 0.5-3 of modifier; 0.1-1 of flock and 5-30 of fly ash, which are mixed to be a liquid inorganic gelled material. The invention has the advantages that the inorganic gelled material is manufactured by a cast-in-situ mode, and no adhesive or no prefabricated inner is needed, thereby the conditions of cracks, filling and uneven material mix in the prior art are avoided, and materials which can evaporate noxious gas after heating are completely cancelled; the inorganic gelled material containing a large amount of foam is filled in a framework, thereby the weight of the whole fireproof door is reduced, and the transportation and the installation efficiencies are greatly enhanced; the foam has good insulation effect, and the solidified foam in the fireproof material can further shrink after pressure processing so as to have complete filling, thereby enhancing the density of the fireproof door and greatly strengthening the fireproof performance.

The invention relates to high-temperature resistant flame-retarding insulating coating and a method for preparing the same, which belong to the material technical field and are used for heat insulation in an aircraft. The compositions by weight percentage of the compositions of the high-temperature resistant flame-retarding insulating coating are: 60 to 70 percent of organic silicone resins, 15 to 20 percent of hollow microballoon filling insulant, 10 to 15 percent of composite fire retardant and 1 to 3 percent of auxiliary agent. The high-temperature resistant flame-retarding insulating coating has low density, high adhesion, good fire resistance and high heat insulation efficiency. The preparation method is to prepare the product with a mesopore structure through addition of the composite fire retardant, coupling agent and the auxiliary agent into the organic silicone resins, uniform mixture of the compositions through high-speed ball milling, addition of the hollow microballoon filling insulant, and low-speed stirring and uniform dispersion.

The invention discloses a coffee cashmere fabric and a manufacturing method of the coffee cashmere fabric, and aims to provide the warming, comfortable, light and thin coffee cashmere fabric and the manufacturing method thereof. The technical key points of the fabric are that: the fabric consists of the following raw materials in percentage by weight: 13.3 percent of carbon fiber, 29.1 percent of terylene, 19.8 percent of lenzing viscose fiber, 3 percent of spandex and 34.8 percent of normal viscose fiber; and the manufacturing method comprises the following steps of: feeding pure viscose yarn in a first path, terylene in a second path and coffee carbon fiber and lenzing viscose fiber blended yarn in a third path; sequentially and circularly arranging weft yarns; forming two loops by using different thread lengths to form approximate loops on one side of a texture; forming an air retaining layer; and finally dyeing and tidying. The fabric and the method belong to the technical field of textile.

The invention discloses a flexible transparent nano heat-insulation film which comprises an organic flexible substrate, a nano antimony tin oxide layer coated on one side of the organic flexible substrate, a TiO2 layer coated on the other side of the organic flexible substrate, a SiO2 layer coated on the other side of the TiO2 layer, and a pressure-sensitive adhesive coated on the other side of the SiO2 layer. The invention also discloses a preparation method of the flexible transparent nano heat-insulation film, which comprises the following steps: 1) preparing a TiO2 coating slurry; 2) preparing a SiO2 coating slurry; 3) preparing a nano antimony tin oxide slurry; 4) coating a nano antimony tin oxide absorptive heat-insulation layer; 5) coating a SiO2/TiO2 reflective heat-insulation layer; and 6) coating the pressure-sensitive adhesive. The method enhances the heat-insulation efficiency of the heat-insulation film, so that the indoor/outdoor temperature difference can reach 10 DEG C; the visible light transmittance of the heat-insulation film is up to 80%; the adhesive force of the coating on the flexible substrate surface reaches Grade 1; the heat-insulation layer can not easily absorb dust, and thus, can not be easily polluted; and the heat-insulation film can be easily attached to or peeled from the surface of the glass, ceramic or any other substrate.

The invention belongs to the technical field of composite materials, and particularly provides a composite layered structure thermal insulation material high in thermal insulation efficiency. The thermal insulation material is formed by arranging and combining heat high-reflectivity materials and low-thermal-conductivity materials alternately. The thermal insulation material is different from an existing thermal insulation material which achieves the thermal insulation effect on the basis of heat conduction limit. The composite layer structure thermal insulation material high in the thermal insulation efficiency is based on material layered combination, can limit heat conduction, and can also effectively limit heat convection and heat radiation, thereby obtaining the efficient thermal insulation effect. The thermal insulation material can be used for petroleum conveying pipelines, buildings, equipment and the like.

A heat treating furnace capable of continuously performing binder removal and subsequent firing without requiring a complicated configuration and increasing the equipment size and cost, for example, for degreasing a ceramic molding which is to be fired in a process for manufacturing a ceramic electronic component. A heat insulator is disposed to surround a heat treatment region in a case, and a reflector is disposed between the inner wall of the case and the insulator in order to reflect heat transferred from the heat treatment region through the heat insulator. A module heater including a heater embedded in the insulator is used. As the reflector, there is used a reflector having a structure in which a plurality of thin plates is arranged so that the main surfaces are arranged in parallel to each other with a predetermined space between the adjacent main surfaces.

The invention discloses an invisible intelligent full-automatic outer sun-shading system, comprising a roller shade box, wherein two ends of the roller shade box are connected to the wall by a head installing seat and a trail installing seat. The invisible intelligent full-automatic outer sun-shading system also comprises a plurality of roller shade pieces, wherein one end sof the roller shade pieces are connected to the roller shade box and the other ends are vertically arranged. The invisible intelligent full-automatic outer sun-shading system also comprises a temperature/light sensor, a controller, a clock controller, an electric rotating motor, an unrolling and rolling electric motor and a turning wheel which are sequentially electrically connected, wherein the clock controller, the electric rotating motor, the unrolling and rolling electric motor and the turning wheel are arranged in the roller shade box; and a leading cable is connected with the electric rotating motor, and one ends of the roller shade pieces are connected to the leading cable. The three-dimensional full-weather automatic control of the outer sun-shading system is realized, the heat-proof quality of the sun-shading system is effectively improved, most of sunlight heat can be reflected and shaded; the outer sun-shading system can avoid that the solar radiation directly enter into the indoor room, is beneficial to the prevention of the fluctuation of the indoor temperature, reduces the cold and hot load loss of the air-condition, greatly improves the heat insulation and daylighting performance of the common sun-shading system and the performance of the air-condition system, and achieves better energy saving effect.

An electronic device includes a circuit board and a heat insulating structure. The heat insulating structure includes a heat source, an enclosure for covering the heat source, and a heat insulating plate disposed on a side of the enclosure facing to the heat source for preventing heat generated by the heat source from directly transmitting toward the enclosure, and a space being formed between the heat insulating plate and the enclosure. The heat insulating structure further includes a thermal conductive layer disposed on a side of the heat insulating plate facing to the heat source. The heat insulating structure further includes the thermal conductive layer disposed on a side of the heat insulating plate facing to the enclosure. Therefore, the heat insulating plate can be for altering heat current generated by the heat source so as to dissipate the heat current via holes on the enclosure uniformly.

Provided are a heat insulation sheet, a hybrid heat insulation sheet including the heat insulation sheet, and a heat insulation panel having the hybrid heat insulation sheet. The heat insulation sheet includes: an outer shell with a hollow portion therein; and a phase change material (PCM) that is positioned in the hollow portion and that absorbs heat transferred from the outer shell.

The invention provides a waterproof heat insulation sandwich layer used for waterproof heat insulation surface materials, which relates to a waterproof heat insulation sandwich layer. The invention solves the problems of poor ventilation performance and poor heat insulation capability of the existing waterproof heat insulation surface materials. The waterproof heat insulation sandwich layer of the invention consists of hydrophobic aerogel powder body filling materials and a polyfluortetraethylene sealing outer layer from inside to outside, wherein the hydrophobic aerogel powder body filling materials are uniformly paved and spread in the polyfluortetraethylene sealing outer layer, and the thickness of the waterproof heat insulation sandwich layer is controlled in a range between 0.5 and 30 mm. The waterproof heat insulation sandwich layer has the heat conductivity coefficient between 0.025 and 0.05 W/m*K, and has good heat insulation and thermal isolation effect. The polyfluortetraethylene used as the outer layer has good waterproof function. Because of a polyfluortetraethylene microcellular structure and the flowability of the aerogel powder body, the waterproof heat insulation sandwich layer has good ventilation performance. Compared with the existing heat insulation waterproof materials, the invention has the advantages that when the same heat insulation effect is reached, the waterproof heat insulation sandwich layer of the invention has small thickness, light weight, flexible texture, convenient application and wide application field.

The invention discloses fire-resistant flame-retardant composite thermal insulation mortar which is characterized by comprising the following raw materials in parts by weight: 300 to 350 parts of cement, 40 to 45 parts of clay powder, 23 to 26 parts of quartz powder, 12 to 15 parts of hydroxy propyl methyl cellulose ether, 40 to 45 parts of polypropylene short fiber, 30 to 35 parts of building crushed brick powder, 8 to 10 parts of antimony trioxide, 5 to 6 parts of sodium metasilicate, 4 to 5 parts of bentonite powder, 40 to 45 parts of oxidized starch, 24 to 28 parts of calcium propionate, 10 to 12 parts of borax, 30 to 35 parts of expanded pearlite powder, 5 to 10 parts of silica sol, 4 to 6 parts of modified nano-carbon powder, and 600 to 650 parts of water. The fire-resistant flame-retardant composite thermal insulation mortar mainly has the advantages that the workability, water-retaining property and heat insulating efficiency can be improved; common problems such as flaking, cracking and the like are solved; the anti-freezing, water-reducing, impermeable, durable, anti-crack, heat-insulating and heat-proof functions are realized after hardening.

The invention provides a thermal shock joint experiment device for a nanometer thermal insulation material in extreme high-temperature environment. The thermal shock joint experiment device comprises a nanometer thermal insulation material test piece of a hypersonic flight vehicle, a primary thermal insulation platform, a precious-metal platinum rhodium pressing sheet, a double platinum rhodium temperature sensor, a hollow ceramic rod, a semicircular clamp, a stretched spring, a secondary-stage thermal insulation platform, a shock table body, an excitation platform, a water cooling channel, an infrared radiation heat source array, a high-power regulator, a fixed electrode, a connecting support, a light thermal insulation material, a shock table drive controller, a ceramic tube and a high-temperature-resistant soft mat. The experiment device can realize the experimental measurement for the anti-shock performance of the nanometer thermal insulation material of the hypersonic flight vehicle in the extreme high-temperature environment being 1500 DEG C, provides important experimental bases for the bearing capability, the thermal insulation performance and the safe and reliable design of the novel nanometer thermal insulation material used by hypersonic remote motor flight vehicles in the extreme high-temperature environment, and has an important engineering application value for development of the hypersonic flight vehicle.

A composition for a rigid polyurethane foam with reduced cell sizes contains a polyol, water, a catalyst, a blowing agent; and an ionic liquid. The rigid polyurethane foam is produced by adding an ionic liquid as an eco-friendly additive to a polyol composition so as to improve insulation efficiency thereof.

By improving the heat insulating efficiency in thermal insulation box, the power consumption of a heater for heating yarns fed from the yarn feeding roller is decreased. A roller unit 3 includes a godet roller 11, a separate roller 12, a thermal insulation box 13 housing the rollers 11 and 12, and a heat exchanger 30 provided outside the thermal insulation box 13. The heat exchanger 30 operates such that, as an exhaust fan 40 is driven, the air in the thermal insulation box 13 is exhausted through an inner tube 31. As an intake fan 41 is driven, the outside air passes through an outer tube 32 and then flows into the thermal insulation box 13 through a branched tube 34. At this stage, the heat exchanger 30 conducts heat exchange between the air running in the inner tube 31 and the air running in the outer tube 32.

Disclosed herein is a door gasket structure for a refrigerator. The door gasket structure comprises a recessed groove member embedded in a thermal insulating material in a correspondingly-recessed inner surface region of a refrigerator door, and having an insertion groove, a coupling member in close contact with the groove member, the coupling member having Wan anchor integrally formed at one surface thereof so as to be inserted in the insertion groove by interference fit, a pair of gaskets integrally formed at the other surface of the coupling member, the pair of upper and lower gaskets having vertically-symmetrical U-shaped forms so as to define an air layer therebetween, and a magnet receptacle integrally formed at ends of the pair of gaskets, and containing a magnet.

The invention provides thermal-insulation slurry and a preparation method thereof, and water-based insulating glass coating and a preparation method thereof. The thermal-insulation slurry is made from nano-scale graphene oxide and nano-ATO mainly; as the nano-ATO has special optical property, in other words, the nano-ATO has high rejection rate in both the long-wave part of an infrared region and an ultraviolet light region, has high transmittance in a visible region, and meanwhile, as the nano-scale graphene oxide has high thermal insulation efficiency, reflection of radiation of the infrared region can be enhanced effectively, and the defect of poor thermal insulation property of the nano-ATO to the near-infrared short-wave region is overcome. The water-based insulating glass coating is prepared from the thermal-insulation slurry and high-transparency high-adhesion water-soluble polyacrylic resin, so that defects of low transparency and poor thermal insulation effect of the prior art are overcome, the problem about poor thermal-insulation property to the near-infrared short-wave region is solved, and the water-based insulating glass coating keeps stable and uniform for a long time.

The invention belongs to the technical field of heat insulation, and discloses a heat insulation composite board and a preparation method thereof. The heat insulation composite board comprises a firstpanel layer and a heat insulation layer, and the heat insulation layer and the first panel layer are integrally formed; the first panel layer is a fiber reinforced resin-based composite sheet, a metal plate, a cement plate, a calcium silicate plate or a gypsum plate, and the heat insulation layer is a fiber reinforced aerogel felt. The preparation method comprises the following steps of: (1) flatly laying a fiber-reinforced aerogel felt; (2) paving the first panel layer on the upper surface of the fiber reinforced aerogel felt; and (3) carrying out hot press molding treatment to obtain the heat insulation composite board. The heat insulation composite board provided by the invention can implement a thermal insulation scheme on scenes like pipes, walls and box bodies, and has the advantages of convenient operation, simplicity, feasibility and the like.