Composite getter device for vacuum insulated panel and method for manufacturing composite getter device

A technology of vacuum insulation panels and air suction devices, which is applied in heat exchange equipment, mechanical equipment, and pipelines through heat insulation protection, can solve the problems of difficult process costs, etc., to ensure effectiveness, improve air suction efficiency, and improve water absorption effect of ability

Active Publication Date: 2015-04-15
QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of getter still cannot solve the problem that it will fail after being in contact with the air for a long time.
However, inert gas protection is used throughout the production process of vacuum insulation panels, which is difficult to achieve in terms of technology and cost.

Method used

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  • Composite getter device for vacuum insulated panel and method for manufacturing composite getter device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: as figure 1 , using a mold to press high-temperature activated zirconium-cobalt alloy powder, barium-lithium alloy powder, and calcium oxide powder into three sheet-shaped suction units 14, and stack them in sequence to form the central layer 13. Put the central layer into the plastic shell 11, adjust the air pressure to 90kPa, plug the opening of the shell with a plastic sealing plug 12, and obtain the final composite suction device for vacuum insulation panels. Use a mold to press a groove with a suitable size and height on the core material of the vacuum insulation panel, and put the composite getter horizontally into the groove. The core material and the composite getter are packed into a composite barrier film bag, and vacuum-packed to obtain a vacuum insulation panel.

[0027] Wherein, the zirconium-cobalt alloy powder is made by the following method, weighing 83.6g of zirconium and 9.9g of cobalt and 6.5g of rare earth metal mixture, and the weight...

Embodiment 2

[0028] Embodiment 2: as figure 1 , respectively pressing high-temperature-activated titanium-vanadium-iron alloy powder, barium-sodium alloy powder, and sodium oxide powder into three sheet-shaped suction units 14 with a mold, and stacking them in sequence to form the central layer 13 . Put the central layer into the aluminum shell 11, adjust the air pressure to 50kPa, plug the opening of the shell with a rubber sealing plug 12, and obtain the final composite suction device for vacuum insulation panels. Use a mold to punch a hole of a suitable size on the core material of the vacuum insulation panel, and put the composite getter horizontally into the hole. The core material and the composite getter are packed into a composite barrier film bag, and vacuum-packed to obtain a vacuum insulation panel.

[0029] Wherein, the ferro-titanium vanadium alloy powder is prepared by the following method:

[0030] (1) Mix the above three metal powders in a weight ratio of 5:3:2 and mix ev...

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Abstract

The invention discloses a composite getter device for a vacuum insulated panel. The composite getter device for the vacuum insulated panel is composed of a shell, a central layer and a sealing plug, wherein the shell is made of metal or plastic, an opening is formed in the shell, the opening can be sealed by the sealing plug which is made of plastic or rubber, the central layer is located in the airtight space defined by the shell and the sealing plug and is formed by stacking one or more sheet getter units, and each sheet getter unit is composed of alloy powder and metallic oxide powder or a mixture of alloy powder and metallic oxide powder. Due to the fact that the composite getter device for the vacuum insulated panel can not lose efficacy after being exposed in the air for a long time, the composite getter device can be used for production of the vacuum insulated panel conveniently.

Description

technical field [0001] The invention relates to a compound suction device for a vacuum insulation panel and a manufacturing method thereof. Background technique [0002] Vacuum insulation panels are based on the principle of vacuum insulation, and reduce convection and radiation heat transfer by maximizing the vacuum inside the panels and filling them with porous core materials. Depending on the core material, the thermal conductivity of the vacuum insulation panel can reach 0.003W / (m K) ~ 0.008W / (m K), which is far superior to ordinary insulation materials. The vacuum inside the vacuum insulation panel is maintained by a composite barrier film on the outside and a getter inside. The composite barrier film is composed of metal, plastic and resin, which can prevent the entry of external air and moisture. The getter placed in the vacuum insulation panel can absorb a small amount of gas passing through the composite barrier film, thereby maintaining the vacuum inside the pane...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L59/065
CPCB22F1/0003B22F2301/00B22F2302/25B22F2302/40B22F2302/45F16L59/065
Inventor 翟传伟李壮贤
Owner QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL
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