Double vacuum combined thermal insulation template and preparation method

Abstract

The invention provides a double vacuum combined thermal insulation template and a preparation method. The double vacuum combined thermal insulation template comprises ordinary vacuum insulation plates, an outer decoration protection plate, an inner reinforcement protection plate and check valves, wherein the inner reinforcement protection plate, the ordinary vacuum insulation plates and the outerdecoration protection plate are sequentially connected from the inside to the outside, and the check valves are arranged on the diagonal side edges of the outer decorative protection plate. The invention adopts two or more layers of ordinary vacuum insulation plates to be staggered and laid, and is combined with a side edge broken bridge design, thereby reducing the effect of the laying inside thetemplate and thermal bridges on the edges; meanwhile, edge joints are also air passages, thereby improving the vacuuming efficiency of the template. The template back plate provided by the inventionis designed with a stamping steel wire combined rib for interface treatment, which improves the bending load capacity of the template and enhances the bonding strength between the template and the base wall. The two check valves are arranged on the obliquely symmetrical corners of the template, and are used for checking the vacuum degree of the template and the vacuum pumping replenishment duringthe post-maintenance so as to realize the same life of a thermal insulation system and the building.

Description

technical field [0001] The invention relates to the field of building energy-saving engineering, in particular to a double-vacuum combined thermal insulation formwork and a preparation method thereof. Background technique [0002] Vacuum insulation panel (VIP panel) is a kind of vacuum insulation material. It is composed of filling core material and vacuum protection surface layer. It can effectively avoid heat transfer caused by air convection, so the thermal conductivity can be greatly reduced, less than 0.008 W / (m·K), with the characteristics of environmental protection and high efficiency and energy saving, is the most advanced high-efficiency thermal insulation material in the world. [0003] China began to manufacture and use VIP to improve the insulation layer of refrigerators. The entire refrigerator manufacturing industry seems to have a wave of VIP application tests. In contrast, some developed countries have researched and used VIP for more than ten years. With t...

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Problems solved by technology

[0006] Aiming at the defects in the prior art, the purpose of the present invention is to provide a double-vacuum combined thermal insulation formwork and its preparation method; in order to solve the problems of high damage rate, low bonding strength, obvious thermal bridge and durability of ordinary vacuum insulation panels, the present invention Invented to set a protective layer with a vacuum environment outside the ordinary vacuum insulation panel, combined into a double vacuum combined thermal insulation formwork, which is convenient for the integrated construction of building structure and energy saving

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