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Ultrathin high-temperature-resistant thermal insulation material structure

A heat insulation material and high temperature resistant technology, applied in the direction of heat insulation protection pipelines, heat preservation, heat exchange equipment, etc., can solve the problem of reducing the thickness of heat insulation materials, not being able to adapt to the new requirements of heat preservation and heat insulation structures, and ultra-thin heat insulation materials It cannot be directly used as a load-bearing member to achieve the effects of reduced load, excellent overall thermal insulation performance, and light structure

Inactive Publication Date: 2014-04-16
TAICANG PAIOU TECH CONSULTING SERVICE
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Problems solved by technology

[0005] At present, there are few researches on the structure of ultra-thin high-temperature-resistant heat-insulating materials in China. The ultra-thin heat-insulating materials mentioned in the above-mentioned patents cannot be directly used as load-bearing members. Reasonable design in two aspects of heat sink and materials will "slim down" the heating parts as a whole, and the above-mentioned heat insulation materials are all used in the fields of construction and transportation, which cannot meet the new requirements of the rapid development of the aerospace field for heat insulation structures. In 2000 In the environment of -3000℃, the thickness of the traditional insulation material is 20-40cm; in the environment of 1000-2000℃, the thickness of the traditional insulation material is 10-20cm

Method used

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Embodiment 1

[0017] An ultra-thin heat-resistant and heat-insulating material structure, comprising four laminated layers of an ablation-resistant layer, a high-temperature-resistant layer, a high-temperature heat-insulating layer, and a heat-radiation-resistant layer. The anti-ablation layer is iridium coating; the high-temperature-resistant layer is C / C composite material; the high-temperature insulation layer is composed of stainless steel vacuum-packed ceramic fiber felt, and the thermal conductivity of this layer is 6mW / m K; the heat-resistant radiation layer is made of glass fiber Cloth and aluminum foil are dry-processed, with 5 layers, and the thermal conductivity of this layer is 48mW / m·K; it can be used for high-temperature protection of spacecraft in the temperature range of 1400°C.

Embodiment 2

[0019] An ultra-thin heat-resistant and heat-insulating material structure, comprising four laminated layers of an ablation-resistant layer, a high-temperature-resistant layer, a high-temperature heat-insulating layer, and a heat-radiation-resistant layer. The anti-ablation layer is platinum coating; the high-temperature-resistant layer is C / SiC ceramic matrix composite; the high-temperature insulation layer is composed of stainless steel vacuum-packed ceramic fiber felt, and the thermal conductivity of this layer is 3mW / m K; the heat-resistant radiation layer is composed of It is made of glass fiber cloth and aluminum foil by dry method. The number of layers is 10. The thermal conductivity of this layer is 30mW / m·K, which can be used for high-temperature protection of spacecraft in the temperature range of 1850°C.

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Abstract

An ultrathin high-temperature-resistant thermal insulation material structure is characterized in that the ultrathin high-temperature-resistant thermal insulation material structure is formed by an ablation-resistant layer, a high-temperature-resistant layer, a high-temperature thermal-insulation layer and a thermal-radiation-resistant layer. The ultrathin thermal-insulation material structure has the advantages of being light, ultrathin, capable of reducing the load of a spacecraft, increasing the usable area and reducing energy consumption, high in strength, good in oxidation-resistant performance, thermal-shock-resistant performance and high-temperature stability, good in corrosion resistance and abrasion resistance, reusable and the like. The whole ultrathin high-temperature-resistant thermal insulation material structure is provided with a plurality of thermal-reflecting and thermal-insulation layers, the thermal-insulation performance is good, and the ultrathin high-temperature-resistant thermal insulation material structure can be applied to high-temperature protection of the spacecraft within the temperature range of 800 DEG C-2000 DEG C.

Description

technical field [0001] The invention relates to a heat insulating material structure, in particular to an ultra-thin high temperature resistant heat insulating material structure. Background technique [0002] When the space shuttle orbiter enters the earth's atmosphere, it will generate huge heat at the bottom due to violent friction with the air, resulting in a high temperature of 649°C-1260°C at the bottom. We urgently need to develop reusable surface insulation materials , the insulating material can withstand temperatures of 1,260°C or higher and gradually reduce the temperature of the outer skin of the orbiter to 176.7°C, which is equivalent to the temperature of a standard household stove. In order to solve the problem of heat protection of the orbiter, a layer of light heat insulation material structure should be glued on the bottom, but the thickness of the heat insulation material is too high, which will cause many hidden dangers, such as cracking and water seepage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/02F16L59/08
CPCF16L59/029B32B18/00F16L59/08
Inventor 陈照峰王璐
Owner TAICANG PAIOU TECH CONSULTING SERVICE
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