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Autoclave inner cavity insulation device

A heat preservation device and autoclave technology, which is applied to pressure vessels, fixed-capacity gas storage tanks, mechanical equipment, etc., can solve the problems of high temperature on the outer surface of the shell, increased thermal conductivity of heat insulation materials, and large heat loss on the outer surface of the shell, etc. problems, to achieve good oil resistance, strong adhesion, and stable chemical properties

Inactive Publication Date: 2013-06-19
XIAN LONGDE TECH
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Problems solved by technology

Because this structure does not integrate the surface of the heat insulation layer, the hot air enters the heat insulation layer under a certain pressure in the autoclave, which increases the thermal conductivity of the heat insulation material and reduces the heat insulation effect of the heat insulation material. The heat loss on the outer surface of the shell is relatively large,
[0003] The direct performance is defects such as high outer surface temperature of the shell

Method used

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  • Autoclave inner cavity insulation device

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Embodiment Construction

[0009] Below in conjunction with accompanying drawing, content of the invention will be further described:

[0010] With reference to the accompanying drawings, a thermal insulation device for the inner cavity of an autoclave includes laying heat-insulating ceramic fibers 2 in the shell 1, and galvanized wire mesh 3 for fixing the heat-insulating ceramic fibers 2, and then laying heat-insulating ceramic fibers 2 on the inner surface of the heat-insulating ceramic fibers 2. Spray a layer of high-temperature-resistant bonding paint 4 to solidify the surface of the heat-insulating ceramic fiber 2 to form a cured layer, and integrate the surface of the heat-insulating material to prevent high-pressure and high-temperature air in the shell from entering the heat-insulating layer. Layer stainless steel guard plate 5, mainly is to protect solidified layer, prevents that workpiece in the autoclave collides and destroys solidified layer.

[0011] During construction, first ...

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Abstract

The invention relates to an autoclave inner cavity insulation device. According to the invention, insulation ceramic fiber is paved on an inner wall of a housing. The insulation device is characterized in that a stainless steel protective plate is connected on the inner side of the insulation ceramic fiber; a layer of galvanized wire mesh is arranged on the outer side of the stainless steel protective plate; and a layer of high-temperature-resistant adhesion paint is sprayed on the surface of the insulation ceramic fiber. The high-temperature-resistant adhesion paint is nano-grade zirconium dioxide. With the paint, a cured layer is formed on the surface of the insulation layer. The cured layer and the surface of the insulation ceramic fiber are integrated.

Description

technical field [0001] The invention relates to the field of pressure vessels, in particular to an autoclave inner cavity insulation device for autoclaves, especially large and medium-sized autoclaves. Background technique [0002] The autoclave is the key equipment for thermocompression forming of composite materials. The working pressure is between 0.6-1.2MPa and the working temperature is between 120-250°C. Electric heating is often used to heat the working medium in the autoclave ( mostly compressed air and nitrogen) and workpieces. In order to save costs and reduce electric heating power, all autoclaves with larger diameters adopt the form of internal insulation. The existing thermal insulation structure in the autoclave is to lay a certain thickness of heat insulating material (ceramic fiber is commonly used) in the shell, fix it on the inner wall of the shell with rivets, and stick a protective plate on the inner surface of the heat insulation layer , to protect the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C1/12F17C1/06
Inventor 杨颢铭
Owner XIAN LONGDE TECH
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