Blocking bag for vacuum heat insulation board

Abstract

The invention discloses a blocking bag for a vacuum heat insulation board. The blocking bag (1) is of a baggy structure with one side open. The blocking bag comprises a composite blocking film layer (2), an aluminum foil layer (3) and a macromolecular heat isolation bonding layer (4) with the low fusion point, and the composite blocking film layer (2), the aluminum foil layer (3) and the macromolecular heat isolation bonding layer (4) are sequentially composited from outside to inside. The blocking bag has the advantages that the blocking bag for the vacuum heat insulation board is of the baggy structure, after an opening of the blocking bag is closed, the gas tightness of the blocking bag is ensured, vacuumizing operation is facilitated, and the vacuum degree of the vacuum heat insulation board can be maintained for a long time; and meanwhile, the blocking bag has the dual heat insulation effects, the heat insulation and heat preservation effects are good, the sealing matching performance of the blocking bag with a core plate is good, and the service life of the vacuum heat insulation board is prolonged.

Description

technical field [0001] The invention relates to a traffic warning device, in particular to a barrier bag used for a vacuum insulation board. Background technique [0002] my country is a big energy-consuming country. With the continuous and rapid development of my country's economy, building energy consumption accounts for about 30% of the total energy consumption of our society, and the form of building energy conservation is urgent. The climate in various regions of our country is quite different, and the requirements for building energy-saving design in different regions are different. GB50176-1993 "Code for Thermal Engineering Design of Civil Buildings" clearly states that the design requirements for regions with hot summer and warm winter are "must fully meet the heat protection requirements in summer, Generally, winter heat preservation is not considered.” The industry has reached a consensus that “the north is heat preservation, and the south is heat insulation”. In ...

AI Technical Summary

Problems solved by technology

At present, there are two methods of external thermal insulation systems widely used in external walls: thin plastering of externally attached thermal insulation boards and vacuum thermal insulation boards. It is difficult to guarantee and other shortcomings. The latter has the disadvantages that after long-term use of the insulation board, the vacuum degree will decrease, and the heat insulation effect needs to be improved.

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