Efficient inorganic vacuum heat-insulation plate

Abstract

The invention discloses an efficient inorganic vacuum heat-insulation plate. The heat-insulation plate comprises a core board (1), an inner isolation bag (2) wraps the outer side of the core board (1) in a sealed mode, an outer isolation bag (4) wraps the outer side of the inner isolation bag (2) in a sealed mode, a gas absorbing agent (5) is arranged between the core board (1) and the inner isolation bag (2), and the portion between the inner isolation bag (2) and the outer isolation bag (4) is filled with a transition vacuum layer (3). The heat-insulation plate has the advantages that the two layers of isolation bags are used for two times of vacuumizing to form a secondary vacuum environment, the gas leakage rate is reduced, the property is stable, the heat insulation property is reliable, thermal resistance is large, the vacuum degree is high, the heat transfer coefficient is low, the service life is long, and the heat-insulation plate is good in heat-preservation and heat-insulation effect, is not affected by temperature, thermal expansion and cold contraction and is suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of thermal insulation, in particular to a high-efficiency inorganic vacuum heat insulation panel. Background technique [0002] The thermal insulation of building envelope structure is one of the key technologies to realize building energy saving. The thermal insulation measures of building envelope structure are basically divided into several aspects, such as external wall thermal insulation, external wall internal thermal insulation and wall self-insulation. Wall insulation materials can not only protect the main structure of the wall, but also reduce the influence of external temperature, humidity and various rays on the main structure. At present, my country's external wall insulation technology is the dominant technology. The widely used external wall insulation systems include thin plastering of externally attached insulation boards and vacuum insulation boards. Although the former has good insulation ...

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Problems solved by technology

At present, my country's external wall insulation technology is the dominant technology. The widely used external wall insulation systems include thin plastering of externally attached insulation boards and vacuum insulation boards. Although the former has good insulation effects, it has complex construction techniques, The overall cost is high, and the construction quality of the surface material is difficult to guarantee. The latter is composed of a core material, an outer packaging material, a getter and an adsorbent made of a polymer foam material with a low thermal conductivity. After use, there are disadvantages such as reduced vacuum degree and thermal insulation effect to be improved, and the core board of the existing thermal insulation board is easy to expand after the barrier bag is damaged, so that the thermal insulation board still loses the performance of thermal insulation, and the current thermal insulation board is used The insulation board is not only thicker, but also has a large thermal conductivity, and the use effect is not very ideal

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