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High-efficiency hydrogen removal device in high-vacuum multilayer heat-insulation cryogenic container

A low-temperature container, multi-layer insulation technology, applied in the direction of pressure vessels/vacuum containers, pressure vessels used in chemical processes, chemical instruments and methods, etc., can solve the problems of high price, low hydrogen absorption capacity of palladium, etc., and achieve low cost , fast adsorption speed, easy installation

Inactive Publication Date: 2012-12-12
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, palladium monoxide is expensive, and the hydrogen absorption per unit mass of palladium monoxide is not large

Method used

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  • High-efficiency hydrogen removal device in high-vacuum multilayer heat-insulation cryogenic container
  • High-efficiency hydrogen removal device in high-vacuum multilayer heat-insulation cryogenic container

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Embodiment Construction

[0011] The specific implementation of the present invention will be further described below in conjunction with accompanying drawing:

[0012] Such as figure 1 , figure 2 As shown, the device of the present invention includes an air outlet pipe 1, a cover net 2, a side net 3, a glass fiber cloth 4, an adsorption chamber 5, an air intake pipe 6, a concave bottom plate 7, an electric heater 8 and hydrogen absorbing agent copper oxide powder. Wherein the intake pipe 6 is vertically welded on the side of the outlet pipe 1 bottom, the concave base plate 7 is welded on the bottom of the outlet pipe 1, the electric heater 8 is placed in the groove of the concave base plate 7 and is threadedly connected with the concave base plate 7, The side net 3 wraps around the inner wall of the air outlet pipe 1, and its bottom end is welded on the concave bottom plate 7 with a gap between it and the inner wall of the air outlet pipe 1. The cover net 2 is placed on the top of the side net 3 and...

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Abstract

The invention relates to a high-efficiency hydrogen removal device in a high-vacuum multilayer heat-insulation cryogenic container, belonging to the technical field of cryogenic engineering and cryogenic technology. The high-efficiency hydrogen removal device comprises an gas outlet device, a cover mesh, a side mesh, a piece of glass fiber cloth, an adsorption chamber, an gas inlet pipe, an concave base plate, an electric heater and a gas absorbing agent which is the copper oxide powder. The gas inlet pipe and the gas outlet pipe are welded in the corresponding position of the upper part of the outer tank of the cryogenic container; the copper oxide powder is put in the adsorption chamber; when the vacuum degree of the interlayer of the adsorption chamber varies, the copper oxide powder is subjected to chemical reaction with the hydrogen in the vacuum interlayer in the electric heating form to generate copper and water vapor, wherein the water vapor is adsorbed by other gas absorbing agents in the vacuum layer; and the hydrogen in the vacuum interlayer of the cryogenic container is removed effectively so that the vacuum interlayer returns to the high vacuum state. The high-efficiency hydrogen removal device is arranged outside the interlayer of the cryogenic container, can be used for removing the hydrogen in the interlayer effectively to maintain the vacuum degree of the interlayer and has the advantages of low-cost, convenience of installation, long service life and other gas absorbing agent saving.

Description

technical field [0001] The invention relates to a high-efficiency dehydrogenation device used in high-vacuum multi-layer heat-insulated cryogenic containers, in particular to an external high-efficiency hydrogen-removal device using copper oxide hydrogen absorbing agent used in high-vacuum multi-layer heat-insulated cryogenic containers. It belongs to the field of cryogenic engineering and cryogenic technology. Background technique [0002] High-vacuum multi-layer insulation, also known as "super insulation", is one of the insulation methods widely used in cryogenic pressure vessels. The vacuum degree of the insulation interlayer is the key factor to ensure the insulation performance of the vacuum insulation cryogenic container. In order to achieve good insulation, the vacuum degree of the interlayer is generally required to be l×l0 -2 Above Pa. The degassing of the interlayer material and the air leakage of the container will lead to a gradual decrease in the vacuum degre...

Claims

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Application Information

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IPC IPC(8): B01J3/03B01J20/06
Inventor 谢斯卫汪荣顺邓冬
Owner SHANGHAI JIAO TONG UNIV
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