A kind of double vacuum combined thermal insulation template and preparation method

Abstract

The invention provides a double-vacuum combined thermal insulation formwork and a preparation method; it is composed of a common vacuum insulation board, an outer decorative protection board, an inner reinforcement protection board and a check valve; the inner reinforcement protection board, the ordinary vacuum insulation board, the outer decoration protection board The plates are sequentially connected from inside to outside; the check valve is arranged on the diagonal side edge of the outer decoration protection plate. The present invention adopts two or more layers of ordinary vacuum heat insulation boards to be paved with staggered joints, combined with the design of broken bridges on the side edges, to reduce the influence of thermal bridges inside the formwork and the edges, and at the same time, the joints are also air channels to improve the vacuuming efficiency of the formwork . The formwork back plate of the present invention is designed with punched steel wire combination ribs, and the interface treatment is carried out to improve the bending load capacity of the formwork and enhance the bonding strength between the formwork and the base wall. Two check valves are provided at the obliquely symmetrical corners of the formwork of the present invention, which are used for checking the vacuum degree of the formwork and replenishing vacuum during later maintenance, so as to realize the same service life of the heat preservation 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...

AI Technical Summary

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

Images