Vacuum thermal insulation device and production process thereof

A technology of vacuum heat insulation and production technology, applied in the direction of heat insulation protection pipelines, heat exchange equipment, heat preservation, etc., can solve the problems of complex operation, low output, etc., and achieve stable chemical properties, high melting point, and excellent heat insulation effect Effect

Inactive Publication Date: 2019-03-29
广东国研新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems of complex operation and low output in the vacuum-pumping manufacturing process of heat-insulating devices, and provide a vacuum heat-insulating device and its production process, which can simply mass-produce heat-insulating devices, and at the same time Heat insulation device can play an excellent heat insulation effect in high temperature environment

Method used

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  • Vacuum thermal insulation device and production process thereof
  • Vacuum thermal insulation device and production process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A vacuum heat insulation device according to the present invention comprises at least two heat insulators and edge sealing materials, the sides of two adjacent heat insulators are separated by a distance to form a vacuum area, and the edge sealing materials are Vacuum high-temperature sintering seals the periphery of the vacuum region to isolate the vacuum region from the outside world.

[0036] Specifically, the heat insulation coefficient of the edge sealing material is lower than that of the heat insulator. Preferably, the heat insulator is made of high temperature resistant heat insulating material, which is one or more materials of mullite ceramics, alumina ceramics, zirconia ceramics, porous ceramics, stainless steel, a variety of different insulation materials The thermal material is bonded into a heat insulator with a temperature-resistant 1700°C high-temperature ceramic glue, which has excellent characteristics of high temperature resistance, high strength, and...

Embodiment 2

[0051] The material and production process of the vacuum insulation equipment described in Example 2 are the same as those in Example 1. The difference lies in that the structure of the heat insulation body is further described in Example 2.

[0052] The heat insulator 2 is made of two circular tube members with different diameters and an open inner cavity, which are divided into a small circular tube 21 and a large circular tube 22. The small circular tube 21 is clamped by a jig Connected in the inner cavity of the large round tube 22, use a jig to clamp and fix one end of the small round tube 21 and the large round tube 22, and make the outer surface of the small round tube 21 and the inner side of the large round tube 22 be separated by the same distance to form a circle. Shape compartment 4 as a vacuum area. The inner cavity of the small round tube 21 is a heating area 1, and the heating area 1 is a tubular cavity with two ends open to accommodate high temperature heating ...

Embodiment 3

[0056] The material and production process of the vacuum insulation equipment described in Example 3 are the same as those in Example 2. The difference lies in that Example 3 further explains another structure of the heat insulator.

[0057] Such as figure 2 As mentioned above, the heat insulator 2 is made of two different sizes of four-sided square tubes formed by bending with heat insulating material, and is divided into a small square tube 23 and a large square tube 24, and one end of the small square tube 23 is made of a The clamping tool is sleeved in the inner cavity of the large square tube 24, and the distance between the four outer surfaces of the small square tube 23 and the four inner surfaces of the large square tube 24 is the same to form a square compartment 5, and the large square tube 24 is also Clamping is fixed on the jig. An edge-banding material 3 is placed at the port of the compartment where the compartment and the fixture are not in contact with each o...

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Abstract

The invention discloses a vacuum thermal insulation device and a production process thereof. The vacuum thermal insulation device comprises at least two thermal insulation bodies and an edge sealing material, wherein the side faces of every two adjacent thermal insulation bodies are spaced by a distance to form a vacuum area, and the edge sealing material seals the periphery of the vacuum area through vacuum high-temperature sintering so as to isolate the vacuum area from the outside world. In the production process, the thermal insulation bodies made of a high-temperature-resistant thermal insulation material are clamped by a jig, the side faces of every two adjacent thermal insulation bodies are spaced by a certain distance to form an isolation cavity, the edge sealing material is placedon the periphery of the isolation cavity, a vacuum high-temperature sintering furnace is placed for sintering, then cooling is conducted so that the edge sealing material can be solidified, and partof the periphery of the isolation cavity is sealed to form the vacuum area. Convection heat conduction and contact heat conduction are isolated through the vacuum area, heat can hardly be transmittedto the outside world, and the thermal insulation effect is realized; the thermal insulation bodies made of the high-temperature-resistant thermal insulation material is adopted and can be applied to the thermal insulation of the high-temperature environment.

Description

technical field [0001] The invention belongs to the technical field of vacuum heat insulation, and in particular relates to a vacuum heat insulation equipment and a production process thereof. Background technique [0002] Heat insulation refers to the physical process of blocking heat conduction when heat is transferred from a space with a higher temperature to a space with a lower temperature during the heat transfer process. At present, the commonly used means of heat insulation is to use glass, stainless steel and other materials to make vacuum glass, vacuum stainless steel tubes and other devices. Transfer to achieve excellent thermal insulation or heat preservation effect. [0003] Most of the existing heat insulation devices are vacuum glass, and its manufacturing method is to place supports on the substrate glass, then combine the sheets, seal the edges, make air extraction holes, install air extraction pipes, and place the two pieces of glass flat in the heating fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/065
CPCF16L59/065
Inventor 张得意何峰斌
Owner 广东国研新材料有限公司
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