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Low-temperature vacuum multi-layer thermal insulation structure comprising aerogel material and method of use

A low-temperature vacuum and multi-layer heat insulation technology, which is applied to the container discharge method, container filling method, heat preservation, etc., can solve the problems that cannot meet the storage requirements, and achieve the effects of improving construction efficiency, preventing falling off, and increasing lifespan

Pending Publication Date: 2022-07-29
HANGZHOU FUSHIDA SPECIAL MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a low-temperature vacuum multi-layer thermal insulation structure containing airgel materials and its use method to solve the problem that the existing low-temperature thermal insulation structure cannot meet the storage requirements of cryogenic liquids with lower temperatures such as liquid hydrogen

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  • Low-temperature vacuum multi-layer thermal insulation structure comprising aerogel material and method of use

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Embodiment 1

[0029] Refer to the attached figure 1 As shown, the present invention relates to a low-temperature vacuum multilayer thermal insulation structure comprising aerogel material, which includes a thermally conductive barrier layer and a thermal radiation reflective layer.

[0030] The thermally conductive barrier layer includes aerogel thermal insulation material 1 and thermal insulation sealing material 2 . The aerogel thermal insulation material 1 is a thermal insulation material composed of aerogel and glass fiber mat, and the specific composite method is as follows: the aerogel and the glass fiber mat are mutually bonded by pressing, and in addition, by heating The pressing method can improve the mutual bonding level of the aerogel and the glass fiber mat; the thickness of the aerogel insulation material 1 is 7mm, and the density is 170-200kg / m 3 , the thermal conductivity at room temperature is less than 0.05W / m.k. The heat-insulating sealing material 2 is a polyimide film,...

Embodiment 2

[0040] Refer to the attached figure 1 As shown, the present invention relates to a low-temperature vacuum multilayer thermal insulation structure comprising aerogel material, which includes a thermally conductive barrier layer and a thermal radiation reflective layer.

[0041] The thermally conductive barrier layer includes aerogel thermal insulation material 1 and thermal insulation sealing material 2 . The aerogel thermal insulation material 1 is a thermal insulation material composed of aerogel and glass fiber mat, and the specific composite method is as follows: the aerogel and the glass fiber mat are mutually bonded by pressing, and in addition, by heating The pressing method can improve the mutual bonding level of the aerogel and the glass fiber mat; the thickness of the aerogel insulation material 1 is 9mm, and the density is 170-200kg / m 3 , the thermal conductivity at room temperature is less than 0.05W / m.k. The heat-insulating sealing material 2 is a polyimide film,...

Embodiment 3

[0045] Refer to the attached figure 1 As shown, the present invention relates to a low-temperature vacuum multi-layer thermal insulation structure containing aerogel material, which includes aerogel thermal insulation material 1 , spacer material 3 and reflective material 4 .

[0046] Refer to the attached figure 1 As shown, the present invention relates to a low-temperature vacuum multilayer thermal insulation structure comprising aerogel material, which includes a thermally conductive barrier layer and a thermal radiation reflective layer.

[0047]The thermally conductive barrier layer includes aerogel thermal insulation material 1 and thermal insulation sealing material 2 . The aerogel thermal insulation material 1 is a thermal insulation material composed of aerogel and glass fiber mat, and the specific composite method is as follows: the aerogel and the glass fiber mat are mutually bonded by pressing, and in addition, by heating The pressing method can improve the mutua...

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Abstract

The invention discloses a low-temperature vacuum multi-layer heat insulation structure containing an aerogel material and a using method. The heat insulation structure comprises a heat conduction blocking layer and a heat radiation reflecting layer. The heat conduction blocking layer comprises an aerogel heat insulation material and a heat insulation sealing material, and the aerogel heat insulation material is wrapped with the heat insulation sealing material; the heat radiation reflecting layer is compounded on the outer side of the heat conduction blocking layer, the heat radiation reflecting layer comprises n layers of reflecting materials and (n-1) layers of spacing materials, n is an integer larger than or equal to 2, and the reflecting materials and the spacing materials are overlapped in a staggered mode. According to the low-temperature vacuum multi-layer heat insulation structure containing the aerogel material, the aerogel heat insulation material is used for replacing a traditional multi-layer heat insulation material, due to the fact that the heat conductivity coefficient of the aerogel material is lower, solid heat conduction is reduced, a temperature zone is expanded, and on the premise that the thickness of an overall heat insulation system is not increased, the heat insulation performance is improved, and the construction efficiency is improved; meanwhile, the evacuation effect on the interlayer is improved, and the overall heat insulation performance is further improved.

Description

technical field [0001] The invention relates to the technical field of thermal insulation of vacuum thermal insulation cryogenic pressure vessels, in particular to a low temperature vacuum multi-layer thermal insulation structure comprising aerogel materials and a method of using the same. Background technique [0002] The application of low-temperature liquid storage is inseparable from thermal insulation technology. The current vacuum multi-layer thermal insulation can already meet the thermal insulation requirements of the liquid nitrogen isothermal zone. For example, Chinese patent CN204284798U discloses a low-temperature multi-layer thermal insulation structure. The surface is provided with protrusions and then overlapped with the reflective screen, which can reduce the heat conduction between the reflective screen and the thermal insulation paper and improve the thermal insulation performance. Another example is Chinese patent CN103277630A, which discloses a multi-laye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/02F16L59/08F16L59/065F17C13/00F17C1/12
CPCF16L59/029F16L59/028F16L59/08F16L59/065F17C13/001F17C13/002F17C1/12F17C2203/0308F17C2203/0325F17C2203/0391Y02E60/32
Inventor 谈辉应秀捷张芷毓
Owner HANGZHOU FUSHIDA SPECIAL MATERIAL