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Air insulating structure of vacuum insulation panel and packaging method thereof

A technology of vacuum insulation board and air insulation, which is applied in heat exchange equipment, pipeline protection through heat insulation, heat preservation, etc., can solve the problems of easy generation of wrinkles in the production process, edge folding wrinkles, and influence of heat insulation performance, so as to reduce thermal bridges effect, saving packaging costs, and reducing the number of strips

Inactive Publication Date: 2011-02-02
SHANGHAI MARITIME UNIVERSITY
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Problems solved by technology

[0004] In order to overcome the problem that the practical composite material of the existing vacuum insulation panel air insulation structure contains aluminum foil, which is easy to form thermal bridges, and there are many edges, which are prone to wrinkles during the production process, and wrinkles are generated by edge sealing and folding, which affects the thermal insulation performance. Air-insulation structure of vacuum insulation panel, and method for encapsulating heat-insulation core material using the air-insulation structure

Method used

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  • Air insulating structure of vacuum insulation panel and packaging method thereof
  • Air insulating structure of vacuum insulation panel and packaging method thereof
  • Air insulating structure of vacuum insulation panel and packaging method thereof

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[0023] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0024] figure 2 It is a sectional view of the composite material used in the air barrier structure of the present invention. The composite material used comprises two heat-sealing layers 21 , two gas barrier layers 22 and one heat barrier layer 23 .

[0025] The heat-sealing layer is made of high-density polyethylene or polybutylene or vinyl ethyl acetate, and the gas-barrier layer is made of polyvinyl alcohol. If necessary, it can be coated with gas-barrier paint. Generally, acrylic varnish is used, and the heat-barrier layer is made of polyolefin. Layers, such as polyethylene, polypropylene or polyethylene copolymer, each layer is bonded with a polyurethane adhesive; generally the thickness of the gas barrier structure is 200-500 microns, pr...

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Abstract

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.

Description

technical field [0001] The invention relates to a vacuum heat insulation material, in particular to an air insulation structure of a vacuum heat insulation panel, and a method for manufacturing a vacuum insulation panel by using the air insulation structure to package an insulation core material. Background technique [0002] Energy conservation and emission reduction have become an important strategy for the development of national energy strategies. In addition to actively developing new energy sources and improving existing equipment to reduce energy consumption, countries are also increasingly concerned about improving the thermal insulation capacity of enclosure structures to prevent energy loss. Attention, vacuum insulation technology came into being. The thermal conductivity of vacuum insulation panels is as low as 0.005W / m·K, which is the best thermal insulation material at present. The research and development of vacuum insulation panels in my country started relat...

Claims

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Application Information

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IPC IPC(8): F16L59/02F16L59/065
Inventor 阚安康韩厚德周家明段全苹耿进良
Owner SHANGHAI MARITIME UNIVERSITY
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