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Preparation method of cryogenic insulation container

A low-temperature insulation and container technology, which is applied in the manufacture of container structures, the outer walls of container structures, pressure vessels, etc., can solve the problem of large energy consumption, artificial material processing costs, affecting the daily evaporation rate, vacuum performance and thermal insulation of low-temperature insulation containers. performance impact and other issues, to achieve the effect of reducing the difficulty of the vacuuming process, reducing the time of the coating process, and reducing the difficulty of coating

Inactive Publication Date: 2019-09-10
湖北三江航天江北机械工程有限公司
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Problems solved by technology

At present, low-temperature pressure vessels with high-vacuum insulation structures require a lot of energy consumption, labor, and material processing costs for vacuuming and insulation material coating.
At the same time, the treatment method and construction environment of the thermal insulation material will have a great impact on the vacuum performance and thermal insulation performance, which in turn will affect the daily evaporation rate of the cryogenic thermal insulation container.

Method used

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  • Preparation method of cryogenic insulation container
  • Preparation method of cryogenic insulation container

Examples

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preparation example Construction

[0027] The preparation method of the low-temperature heat insulation container, the specific preparation process is as follows:

[0028] 1) Preparation of SiO 2 Airgel composite insulation material cylinder preform, SiO 2 Airgel Composite Thermal Insulation Rear Head Preform and SiO 2 Airgel composite thermal insulation material front head preform, wherein, SiO 2 Airgel composite insulation material cylinder preform conforms to the shape of the cylindrical cylinder, SiO 2 The shape of the airgel composite thermal insulation material rear head preform is consistent with the shape of the rear head and SiO 2 Airgel composite thermal insulation material rear head prefabricated with a rear hole reserved for the passage of the rear support, SiO 2 The prefabricated part of the airgel composite thermal insulation material is consistent with the shape of the front head and the SiO 2 The front head prefabricated part of the airgel composite thermal insulation material is reserved w...

Embodiment

[0035] Prepare a low-temperature insulation container with a diameter of 600mm and a volume of 450L. The insulation method is: vacuum + insulation material coating to form an insulation layer. The preparation method is as follows:

[0036] 1) Preparation of SiO 2 Airgel composite insulation material cylinder preform, SiO 2 Airgel Composite Thermal Insulation Rear Head Preform and SiO 2 Airgel composite thermal insulation material front head prefabrication;

[0037] 2) SiO in step 1) 2 Airgel composite insulation material cylinder preform, SiO 2 Airgel composite thermal insulation material rear head preform, SiO 2 The airgel composite heat insulation material front head preform and aluminum foil are put into the constant temperature furnace for degreasing, drying and degreasing treatment, and the temperature of the constant temperature furnace is controlled at 155°C to evaporate the water in the heat insulation material preform , is conducive to vacuuming, and at the same ...

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Abstract

The invention discloses a preparation method of a cryogenic insulation container. The cryogenic insulation container sequentially comprises an inner container, a vacuum interlayer, a heat insulationlayer and a shell from inside to outside. The heat insulation layer comprises a plurality of heat insulation monomers. Each heat insulation monomer comprises an inner SiO2 aerogel composite heat insulation material layer and outer aluminum foil. The heat insulation material adopts the SiO2 aerogel composite heat insulation material, compared with a traditional heat insulation material, the SiO2 aerogel composite heat insulation material is low in heat conductivity coefficient, thin and light and has the waterproof performance, damp-proof performance, fire-proof performance and the like. The heat insulation material is manufactured into a preformed piece matched with the inner container, so that the cladding difficulty is lowered, and the cladding time is shortened. Compared with the traditional heat insulation material, the number of cladding layers of the heat insulation material is reduced by at least a half, the material cost is greatly lowered, and the cladding technology time is greatly shortened.

Description

technical field [0001] The invention belongs to the technical field of low-temperature heat-insulating containers, and in particular relates to a preparation method of low-temperature heat-insulating containers. Background technique [0002] The low-temperature heat-insulated pressure vessel has a double-layer structure of inner tank and outer shell, and the interlayer is evacuated to form a high-vacuum heat-insulation structure. In order to reduce the radiation heat transfer of the interlayer, the inner tank needs to be coated with heat-insulating materials. Commonly used thermal insulation materials are aluminum foil with high reflectivity and glass fiber paper with low thermal conductivity and flame retardant. At present, cryogenic pressure vessels with high-vacuum insulation structures require a lot of energy consumption, labor, and material processing costs for vacuuming and insulation material coating. At the same time, the treatment method and construction environmen...

Claims

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Application Information

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IPC IPC(8): F17C1/12
CPCF17C1/12F17C2203/0325F17C2209/21F17C2209/22
Inventor 顾婷婷康彬唐英国周文君董涛涛任晗
Owner 湖北三江航天江北机械工程有限公司
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