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Inner core material used for vacuum heat-insulating plate and vacuum heat-insulating plate

A technology of vacuum insulation panels and core materials, which is applied to heat exchange equipment, protects pipes through heat insulation, and heat preservation, can solve the problems of high cost, high energy consumption, complex process, etc., to improve thermal insulation performance and reduce heat conduction. area effect

Inactive Publication Date: 2016-10-12
FUJIAN SUPERTECH ADVANCED MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the production of core materials adopts wet production process, that is, glass fiber or glass wool, flame cotton, etc. are beaten, paper-made, dried, and cut to make core materials, but the energy consumption is high, the process is complicated, and the cost is high.

Method used

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  • Inner core material used for vacuum heat-insulating plate and vacuum heat-insulating plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] refer to figure 1 , this example adopts dry-laid non-woven process technology to produce the internal core material used in vacuum insulation panels, using glass fiber and a small amount of low-melting point organic fiber, through opening, mixing, carding, air-laid, clamp-type web-laying machine , heat setting machine, hot roll, slitting machine and other equipment to produce the inner core material used in vacuum insulation panels.

[0024] The specific production steps are as follows:

[0025] 1 Raw material ratio: 90-99% of alkali-free glass fiber, the average fiber diameter of glass fiber is 7-15μm, and the average fiber length is 10-50mm; 1-10% of low melting point polyester fiber.

[0026] 2 process flow:

[0027] 1) The glass fiber and low-melting-point polyester fiber pass through two opening machines to disperse and loosen the glass fiber and low-melting-point polyester fiber, and part of the short glass fiber is monofilamentized.

[0028] 2) The glass fiber...

Embodiment 2

[0059] A vacuum insulation panel comprising:

[0060] outsourced materials; and

[0061] a core material accommodated inside the outer covering material;

[0062] The inside of the outer covering material can be kept in a decompressed state, and the core material includes the inner core material used in the vacuum insulation panel described in Example 1.

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Abstract

The invention provides an inner core material used for a vacuum heat-insulating plate. The inner core material is formed by laminating a plurality of non-woven fabrics. The non-woven fabrics are produced and manufactured by using a plurality of glass fibers and a plurality of low-melting-point organic fibers through the dry non-woven process. In the non-woven fabrics, most of the multiple glass fibers extend in the direction basically parallel to the surfaces of the non-woven fabrics. The provided inner core material used for the vacuum heat-insulating plate is excellent in heat insulation performance, simple in production process and low in cost.

Description

technical field [0001] The invention relates to an inner core material used in a vacuum heat insulation panel and a vacuum heat insulation panel. Background technique [0002] Vacuum insulation panel is a new type of high-efficiency thermal insulation material that combines the principle of vacuum insulation with traditional thermal insulation materials. It is widely used in refrigerators, incubators, building walls, refrigerated containers, etc. It is composed of membrane materials, core materials, getter materials, etc. [0003] At present, the core material mostly adopts materials with high porosity, connected pores and low thermal conductivity. Most of the production of core materials adopts wet production process, that is, glass fiber or glass wool, flame cotton, etc. are beaten, paper-made, dried, and cut to make core materials, but the energy consumption is high, the process is complicated, and the cost is high. . [0004] The invention uses the improved non-woven ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/02F16L59/065F16L59/07
CPCF16L59/02F16L59/065F16L59/07
Inventor 王振安吴志煌罗宇彦
Owner FUJIAN SUPERTECH ADVANCED MATERIAL