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Molecular sieve replacement assembly of cryogenic pressure vessel

A technology for pressure vessels and molecular sieves, which is applied to non-pressure vessels, installation devices of vessel structures, and outer walls of vessel structures, etc., can solve the problems of loss of activity, reduced vacuum, chronic leakage of interlayer space, etc. Service life, effect of avoiding leakage risks

Inactive Publication Date: 2022-01-14
JIANGYIN FUREN HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the problem with the molecular sieve adsorber on the cryogenic pressure vessel in the prior art is that after a period of use, the molecular sieve adsorber loses its activity because the molecular sieve absorbs gas or moisture has reached saturation, and the thermal insulation material in the cryogenic pressure vessel slows down. Under the action of released gas, or due to the chronic leakage of the interlayer space of the cryogenic pressure vessel, the vacuum degree in the interlayer space of the cryogenic pressure vessel will gradually decrease, thereby reducing the service life of the cryogenic pressure vessel

Method used

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  • Molecular sieve replacement assembly of cryogenic pressure vessel
  • Molecular sieve replacement assembly of cryogenic pressure vessel
  • Molecular sieve replacement assembly of cryogenic pressure vessel

Examples

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Effect test

Embodiment 1

[0047] Such as Figures 1 to 6 Shown is an embodiment of a molecular sieve replacement assembly for a cryogenic pressure vessel of the present invention, including a molecular sieve adsorber 4, a two-way valve 8 dedicated to a vacuum environment, and a two-way valve connected between the molecular sieve adsorber 4 and the vacuum environment. The curved adsorption pipeline 14 between the valves 8, the molecular sieve adsorber 4 is provided with adsorption holes 9, and the special two-way valve 8 for vacuum environment includes a valve body 11 and an adsorption channel arranged on the valve body 11 , the adsorption channel includes a main adsorption channel 18 and an inlet-side adsorption channel 19 and an outlet-side adsorption channel 20 respectively transversely connected to the two ends of the main adsorption channel 18, and the main adsorption channel 18 is provided with a vacuum sealing hole 12 , the inlet-side adsorption channel 19, the vacuum sealing hole 12, the main ad...

Embodiment 2

[0067] A method for realizing molecular sieve replacement using the molecular sieve replacement assembly of the cryogenic pressure vessel of embodiment 1, comprising the steps of:

[0068] (1) Adsorption channel blocking: open the valve cover heater 28 to heat the valve cover 21, so that the valve cover hole on the valve cover 21 expands, thereby realizing the gap fit between the heating rod 23 of the electric soldering iron 22 and the valve cover hole Then operate the handle of the electric soldering iron 22, so that the thermal expansion sealing plunger 13 at the front end of the electric soldering iron heating rod 23 enters in the vacuum sealing hole 12 of the valve body 11; then close the valve cover heater 28, and the valve cover 21 is gradually cooled to normal state, Make the bonnet hole on the bonnet 21 return to the interference sealing fit state with the electric soldering iron heating rod 23; finally turn on the electric soldering iron 22 to heat the thermal expansio...

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Abstract

The invention discloses a molecular sieve replacement assembly of a cryogenic pressure vessel, wherein the molecular sieve replacement assembly comprises a molecular sieve adsorber, a bent adsorption pipeline and a two-way valve special for a vacuum environment which are connected in sequence; the molecular sieve adsorber is provided with adsorption holes, and the two-way valve special for the vacuum environment comprises a valve body and an adsorption channel arranged on the valve body; the adsorption channel comprises a main adsorption channel, an inlet side adsorption channel and an outlet side adsorption channel, the inlet side adsorption channel and the outlet side adsorption channel are transversely connected to the side faces of the two ends of the main adsorption channel respectively, a vacuum sealing hole is formed in the main adsorption channel, and the inlet side adsorption channel, the vacuum sealing hole, the main adsorption channel, the outlet side adsorption channel and the adsorption pipeline are sequentially communicated to form an adsorption loop; the adsorption loop is communicated with the adsorption hole in the molecular sieve adsorber through the adsorption pipeline, and a thermal expansion sealing plunger is arranged on the vacuum sealing hole; and the molecular sieve adsorber comprises a molecular sieve adsorption box, and a feeding pipeline and a discharging pipeline which are arranged on the molecular sieve adsorption box. The service life of the cold pressure container is prolonged.

Description

technical field [0001] The invention relates to the technical field of cryogenic pressure vessels, in particular to a molecular sieve replacement component of a cryogenic pressure vessel. Background technique [0002] Cryogenic pressure vessel (cryogenic insulation tank) is a storage container used to store low-temperature liquid gas. Its structure includes an inner container and an outer container. A vacuum interlayer space is formed between the inner container and the outer container to isolate the transfer of external heat, thereby Ensure the safety of cryogenic liquefied gas in the inner container. The vacuum degree of the interlayer space of the cryogenic insulation tank is the key factor to ensure the insulation effect of the vacuum insulation cryogenic vessel. [0003] In the prior art, the outer wall of the inner container of the low-temperature heat-insulating tank is usually wrapped with a layer of heat-insulating material to further improve the heat-insulating ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04B01D53/26F17C3/08F17C13/00F17C13/04
CPCB01D53/04B01D53/261F17C3/085F17C13/001F17C13/00F17C13/04B01D2253/116F17C2203/0629F17C2203/0395F17C2205/0394F17C2209/221F17C2209/23
Inventor 徐兴宝徐谷钱丽君朱明国许惠钢
Owner JIANGYIN FUREN HIGH TECH