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Vacuum heat-insulating plate

A vacuum heat insulation board and vacuum pumping technology, applied in heat exchange equipment, through heat insulation to protect pipelines, heat preservation, etc., can solve the problems of low heat transfer performance, low thermal conductivity, etc., and achieve good heat insulation performance and barrier air leakage , Reduce the effect of edge thermal effect

Inactive Publication Date: 2013-08-07
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Abstract
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Problems solved by technology

For example, the Chinese invention patent 200810061206.X discloses a high-strength vacuum insulation panel. The vacuum insulation panel can well insulate moisture, has a low thermal conductivity, and has good thermal insulation performance. The panel body has high strength, but weakens Low performance of external heat transfer through thermal radiation

Method used

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  • Vacuum heat-insulating plate

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Embodiment Construction

[0008] Such as figure 1 As shown, the present invention is A vacuum insulation panel, a getter 1 is placed in a polystyrene foam 2, sealed with a multi-layer polyester base film 3, and a high vacuum space is formed after vacuuming, and a thermal radiation layer is placed in the vacuum insulation panel to prevent heat The radiation layer is composed of aluminum foil or aluminized film 4 and nylon mesh 5 .

[0009] The heat radiation protection layer is placed inside the vacuum insulation panel, which adopts a two-layer or multi-layer structure, with 5 compartments of nylon mesh.

[0010] The anti-heat radiation layer is sandwiched between the multi-layer polyester base film 3 and the polystyrene foam 2, and is located on the side of the vacuum insulation panel with heat radiation.

[0011] The multilayer polyester base film 3 is processed by folding and heat sealing three sides and welding.

[0012] Aluminum foil or aluminized film 4 use one deck polyethylene film as heat-...

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Abstract

Provided is a vacuum heat-insulating plate. An air absorbing agent (1) is arranged in polystyrene foam (2), the polystyrene foam (2) is sealed by using multiple layers of polyester based films (3) and then vacuumized form a high-vacuum space, and an anti-heat-radiation layer is arranged in the vacuum heat-insulating plate and consists of an aluminium foil or an aluminium coated film (4) and a nylon net (5). The anti-heat-radiation layer consisting of the aluminium foil or the aluminium coated film and the nylon net effectively decreases heat entering the vacuum heat-insulating plate through heat radiation, the edge heat effect of the vacuum heat-insulating plate is reduced, permeation of outside aqueous vapor and air leakage of a heat preserving material can be prevented well, and the vacuum degree of the vacuum heat-insulating plate is guaranteed, so that the heat-insulating performance of the vacuum heat-insulating plate is good.

Description

technical field [0001] The invention relates to a vacuum heat insulation panel, especially a vacuum heat insulation panel with a heat radiation protection layer. Background technique [0002] At present, technically, vacuum insulation panels are well-known technologies. For ordinary vacuum insulation panels, multi-layer polyester-based films are often used as the gas barrier material of vacuum insulation panels, and porous dielectric materials are used as insulation materials for filling, such as polystyrene foam, Polyurethane foam, glass fiber and aerogel, etc., built-in gas adsorbent, desiccant and infrared shading agent, and then vacuumize. For example, the Chinese invention patent 200810061206.X discloses a high-strength vacuum insulation panel. The vacuum insulation panel can well insulate moisture, has a low thermal conductivity, and has good thermal insulation performance. The panel body has high strength, but weakens The performance of transferring heat to the outsi...

Claims

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Application Information

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IPC IPC(8): F16L59/02F16L59/065
Inventor 陈叔平金树峰任金平
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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