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Helium liquefaction system

A helium gas and refrigerator technology, applied in the field of helium liquefaction, can solve problems such as energy consumption, waste of helium resources, and loss of cooling capacity

Pending Publication Date: 2020-10-23
VACREE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] First: The helium released from the Dewar device is a high-purity gas, and the recovery process of helium will cause new pollution to the helium, and the polluted helium needs to be purified again
The released helium consumes energy in both the recovery process and the purification process, which is a waste of energy
[0004] Second: If there is only a helium liquefaction device and no recovery device and purification device, then the helium released from the Dewar can only be released into the atmosphere, which will cause a waste of helium resources
[0005] Third: The temperature of the helium gas released from the Dewar device is also low, which will also cause a loss of cooling capacity to some extent

Method used

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  • Helium liquefaction system

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Embodiment Construction

[0023] In order to facilitate those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0024] The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

[0025] refer to figure 1 , this embodiment discloses a helium liquefaction system, a helium liquefaction system, comprising a helium gas source 1, a refrigerator heat exchange device 3, a low temperature storage device 4, a circulation heat exchange device and a circulation drive device 5; the...

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Abstract

The invention discloses a helium liquefaction system. The helium liquefaction system comprises a helium gas source, a refrigerating machine heat exchange device, a low-temperature storage device, a circulating heat exchange device and a circulation driving device. The helium gas source is input to the refrigerating machine heat exchange device through a pipeline. The outlet end of the refrigerating machine heat exchange device is connected to the inlet end of the low-temperature storage device. The circulating heat exchange device is provided with a first passage and a second passage. The outlet end of the low-temperature storage device communicates with the inlet end of the first passage in the circulating heat exchange device. The outlet end of the first passage in the circulating heat exchange device communicates with the inlet end of the circulation driving device. The outlet end of the circulation driving device communicates with the inlet end of the second passage in the circulating heat exchange device. The outlet end of the second passage in the circulating heat exchange device communicates with the inlet end of the refrigerating machine heat exchange device. The helium liquefaction system avoids the loss of cold capacity and the leakage of gaseous helium.

Description

technical field [0001] The invention relates to the technical field of helium liquefaction, in particular to a helium liquefaction system. Background technique [0002] Helium mainly exists in natural gas or radioactive ore in nature. In the earth's atmosphere, the concentration of helium is very low, only one part in 520000. In the existing small-scale helium liquefaction process, most rely on refrigerators to cool down the helium gas, store it in a Dewar device after liquefaction. During the cooling and liquefaction process of helium, the helium in the Dewar device will continuously release helium to the recovery device, as shown in: [0003] First: The helium released from the Dewar device is a high-purity gas, and the recovery process of helium will cause new pollution to the helium, and the polluted helium needs to be purified again. The released helium consumes energy no matter in the recovery process or the purification process, which is a waste of energy. [0004...

Claims

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Application Information

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IPC IPC(8): F25J1/00F25J1/02
CPCF25J1/0007F25J1/0257
Inventor 孙庆国苏玉磊刘占卿邱一男何超峰王振兴刘岩云胡俊豪王天祥张华标高旭陈虹叶海峰周家屹雷刚张晓萍江延明邱小林陈强
Owner VACREE TECH