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1183 results about "Vacuum insulated panel" patented technology

A vacuum insulated panel (VIP) is a form of thermal insulation consisting of a gas-tight enclosure surrounding a rigid core, from which the air has been evacuated. It is used in building construction, refrigeration units, and insulated shipping containers to provide better insulation performance than conventional insulation materials.

Nanometer multiple-layer composite thermal insulation material and preparation method thereof

ActiveCN101799099AEasy to useInhibition of high temperature radiative heat transferThermal insulationPipe protection by thermal insulationAdhesiveMetal foil
The invention discloses a nanometer multiple-layer composite thermal insulation material and a preparation method thereof. The nanometer multiple-layer thermal insulation composite material is formed by alternatively overlapping an infrared reflecting screen and a spacer; the ratio of total layer amounts n of the infrared reflecting screens and the spacers to the total thickness of the nanometer multiple-layer composite thermal insulation material is 0.5-4; the infrared reflecting screen is a metal foil or a metal plated foil; the spacer is a thermostability nanometer porous aerogel composite thermal insulation material; the infrared reflecting screen and the spacer are combined by being adhered with thermostability adhesives or in puncturing connection by thermostability sewing threads. The invention also comprises the preparation method of the nanometer multiple-layer composite thermal insulation material. The nanometer multiple-layer composite thermal insulation material of the invention has low density, favorable mechanical property and favorable high-temperature thermal insulation property, lowers requirements on the vacuum degree by a VIP plate when being used as vacuum thermal insulation plate core materials, does not need getter and can satisfy harsh high-efficiency thermal insulation using requirements on materials by aviation, aerospace and civil fields. The method of the invention can prepare thermal insulation material members with large size and complex shape.
Owner:NAT UNIV OF DEFENSE TECH

Method utilizing expanded perlite to produce vacuum insulated plate

The invention relates to a method utilizing expanded perlite to produce a vacuum insulated plate. The fabrication process of the method comprises the following steps of: burdening: putting the expanded perlite, an auxiliary material, fiber and a vacuum active stabilizing agent into a mixing machine to be fully mixed; drying: drying the uniformly stirred mixture; core material forming: putting the dried materials and a getter into a mould, and putting the mould into a pressing machine for pressure forming; package: taking out a pressure-formed core plate from the mould, packing a layer of non-woven fabric at the periphery of the core plate so as to obtain the core plate of the vacuum insulated plate for buildings; putting the core plate into a high-resistance gas membrane bag, vacuumizing with the vacuum degree of 0.02-20Pa, and then sealing. The method has the advantages that the sound absorption of the expanded perlite is good, and the own coefficient of thermal conductivity of the expanded perlite is low; the mixing of the auxiliary material, the fiber and the perlite can form a high-performance thermal-protective layer among perlite particles, and further the thermal insulation properties and the strength are increased; and the expanded perlite is an inorganic materials and is not easy to burn.
Owner:QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL

Air insulating structure of vacuum insulation panel and packaging method thereof

The invention provides an air insulating structure of vacuum insulation panel, which is formed by composite material. The composite material does not contain aluminium foil layer; therefore, the heat bridge effect of seal edge during heat seal is avoided. The packaging method of the air insulating structure comprises the following steps of: folding a single piece of composite material to form a bag shaped air insulating structure having a size consistent with that of adiabatic core material according to the specification of the core material and form three seal edges; sealing part of sealing edges with heat, and keeping an opening for placing the adiabatic core material inside; filling the adiabatic core material in the air insulating structure, performing heat seal on the remained opening and keeping a vacuum pumping opening; and placing the air insulating structure, which is filled with the adiabatic core material and has a vacuum pumping opening, in a vacuum room and pumping to produce vacuum, and performing heat seal on the preserved vacuum pumping opening to form a vacuum thermal insulation panel. The air insulating structure has three seal edges, which are fewer than those of the conventional method; therefore, the integral heat bridge effect is reduced, the operation is simple, the appearance planeness of the vacuum insulation panel is improved, and the fold and air leakage of the air insulating structure in convention manufacturing process are avoided.
Owner:SHANGHAI MARITIME UNIVERSITY

Energy-saving refrigerator

The invention discloses an energy-saving refrigerator and belongs to the technical field of refrigerator energy conservation. Before polyurethane foam is filled in a heat-insulating layer to foam, one or two high-vacuum thermal insulation plates are arranged in the heat-insulating layer. The whole heat-insulating material consists of polyurethane open-cell foam, an air adsorbent and a trapping membrane, wherein the polyurethane open-cell foam serves as a core heat-insulating material; the aperture ratio of the polyurethane foam is more than or equal to 95 percent; and the polyurethane open-cell foam is vacuumized and is sealed by the trapping membrane, so that the heat conductivity is greatly reduced. A double-magnetic stripe door seal is arranged at a connecting place of the cabinet body and a door body; two parallel magnetic stripes of which the length is 4 to 6mm respectively pass through two correspondingly independent air bags; and a small air bag is spaced between the two air bags. The two magnetic stripes realize two door seals and have complementary effect of two sealing surfaces which overcome leakage caused by warping of a single magnetic stripe and guarantee that the seal is more thorough. The aim of energy conservation and consumption reduction is fulfilled by changing the material and structure of the heat-insulating layer and the mounting positions and number of the magnetic stripes of the door seal.
Owner:SHANGHAI DUSHI IND

Modified cement polyphenyl granule composite vacuum insulated panel and preparation method thereof

The invention relates to a modified cement polyphenyl granule composite vacuum insulated panel. The modified cement polyphenyl granule composite vacuum insulated panel is characterized by comprising a vacuum heat insulation panel and modified cement polyphenyl granule thermal mortar which covers the periphery of the vacuum heat insulation panel. The vacuum heat insulation panel comprises core materials, high strength air resistance film and interface mortar. The high strength air resistance film covers the periphery of the core materials and is encapsulated between core materials through vacuumpumping. A layer of interface mortar is coated on the periphery of the high strength air resistance film. The thickness of the interface mortar is 2 millimeters to 3 millimeters. The modified cement polyphenyl granule composite vacuum insulated panel has the advantages that problem of damage and air leakage of the vacuum heat insulation plate in a work process is solved, construction and installation are convenient to achieve, heat retaining property, water resisting property, durability and freezing resistance are good, flame class is non-ignitable or fire-retardant and fireproof performance is good.
Owner:ANHUI KERUIKE INSULATION MATERIAL
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