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Low-temperature liquid storage gas cylinder

A gas cylinder and liquid storage technology, which is applied in the field of low-temperature liquid storage gas cylinders, can solve the problems of low thermal insulation performance of gas cylinders, difficulty in meeting the requirements for thermal insulation performance and safety performance, and achieve the effect of reducing workload and improving thermal insulation performance

Active Publication Date: 2022-05-10
张家港富瑞新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas cylinder with the above structure has the following disadvantages: because the distribution head and the stop valves on the external pipes connected to the distribution head are exposed, the external heat can be transferred to the In the low-temperature liquid in the inner cylinder, the thermal insulation performance of the gas cylinder is not high; in addition, the reserved space at the inner rear head usually only has the function of balancing the gas-liquid pressure in the inner cylinder, and does not play a role in the thermal insulation performance of the gas cylinder. More functions
[0003] Since liquid hydrogen needs to be stored and transported at minus 253°C, the cylinders for storing and transporting liquid hydrogen must start from the aspects of ultra-high thermal insulation performance and vacuum guarantee. In addition, due to the flammability and explosiveness of hydrogen, it is necessary to consider The safety of liquid and storage, but the currently used cryogenic liquid storage cylinders are still difficult to meet the requirements for use in terms of thermal insulation performance and safety performance

Method used

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Examples

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Effect test

Embodiment 1

[0028] as Figure 1 、 Figure 2 As shown, a kind of cryogenic storage gas cylinder, comprising: outer cylinder 1, which includes an interconnected outer front seal head 12, an outer cylinder 11, an outer rear seal head 13; an inner cylinder 2, which includes an interconnected inner front seal head 22, an inner cylinder 21, an inner rear seal head 23; a vacuum sandwich between the inner cylinder 2 and the outer cylinder 15; in actual use, the spacing between the outer cylinder 1 and the inner cylinder 2 range is 50-100mm, the spacing is greater than the free path of the gas molecules in the vacuum state, and both thermal conductivity and economy, It can effectively reduce the thermal conductivity of the residual gas molecules after vacuuming, at the same time, in order to improve the thermal insulation performance of the inner cylinder 2, the outer wall of the inner cylinder 2 is wrapped with an insulation layer 28, and the number of winding layers of the insulation winding material...

Embodiment 2

[0043] as Figure 7 Shown, is another embodiment of the low temperature storage liquid cylinder of the present invention. The structure of the cryogenic storage cylinder in the present embodiment is substantially the same as the structure of the cryogenic storage cylinder in Example I, and the differences between the cryogenic cylinders described in these two embodiments are described below. The difference with the cryogenic storage cylinder in Example I is that: in the present embodiment, the outer front seal head 12 is covered by a vacuum housing 16 is provided with a connecting port, the connecting port so that the vacuum jacket space 17, the vacuum jacket layer of the valve body and the vacuum sandwich between the inner and outer cylinders of the cylinder 15 are interconnected, so that only a vacuum port needs to be provided, the vacuum port is disposed on the top of the outer cylinder 11, so that the vacuum sandwich 15, the valve body vacuum jacket layer and the vacuum jacket ...

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Abstract

The low-temperature liquid storage gas cylinder comprises an outer cylinder and an inner cylinder, and a vacuum interlayer is arranged between the inner cylinder and the outer cylinder; a distribution head is arranged on the outer front sealing head; a vacuum housing surrounding the distribution head is arranged on the periphery of the distribution head, the vacuum housing is fixed to the outer front end socket and matched with the outer front end socket to form a vacuum jacket space isolated from the vacuum interlayer, and the vacuum jacket space communicates with or is isolated from the vacuum interlayer between the inner barrel and the outer barrel. The inner wall of the inner front end socket is provided with a reserved housing covering the front supporting structure, the inner front end socket and the reserved housing are matched to form a reserved space, the front supporting structure is located in a gas phase space in the reserved space, and all internal pipelines connected with the inner end of the distribution head penetrate through the reserved housing and the gas phase space in the reserved space respectively. The gas cylinder has higher heat insulation performance and safety.

Description

Technical field [0001] The present invention relates to a cryogenic container for storing liquefied natural gas, liquid hydrogen and the like, specifically a low-temperature storage liquid cylinder. Background [0002] The existing low temperature storage gas cylinder generally adopts the double-layer structure of the outer cylinder and the inner cylinder, and a vacuum sandwich is formed between the inner and outer cylinders, and the outer cylinder includes: the outer cylinder and the outer front seal and the outer rear seal head connected to the outer cylinder body, and the inner cylinder includes: the inner cylinder and the inner front seal head and the inner front seal head and the inner rear seal head connected to the inner cylinder body. The inner and outer cylinders of the cylinder are supported by the front support structure between the outer front seal head and the inner front seal head and the back support structure between the outer front seal head and the inner front ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C1/00F17C1/12F17C13/08F17C13/04F17C13/02
CPCF17C1/00F17C1/12F17C13/08F17C13/04F17C13/02F17C2201/0109F17C2201/035F17C2203/0391F17C2203/0304Y02E60/32
Inventor 李晓峰朱鸣何晓冬黄强华余科元陈光奇
Owner 张家港富瑞新能源科技有限公司