Novel initiative jet cooling device

Abstract

The invention relates to a novel initiative jet cooling device and belongs to the field of long-term damage-free storage and transportation of low-temperature liquid. The novel initiative jet cooling device comprises a casing, a heat transmission pipe, a fin and a forced jet pump, wherein the fin is additionally mounted on the outer side of a cold end of the heat transmission pipe which is a special-shaped symmetrical water-drop pipe, and the cross-sectional shape of the fin is identical to that of the special-shaped symmetrical water-drop pipe of the transmission pipe. The novel initiative jet cooling device solves the problem that a conventional initiative storage and transportation system for low-temperature liquid is low in efficiency, is practically significant to long-term damage-free storage and transportation of cryogenic low-temperature liquid (liquid hydrogen, liquid oxygen, liquid nitrogen and liquid helium), is especially applicable to storage space for the low-temperature liquid, effectively solves the problem about deficient space energy, improves system performance of the storage space, and prolongs the effective work period of the low-temperature storage system.

Description

technical field [0001] The invention relates to a novel active jet cooling device, which belongs to the field of long-term non-destructive storage and transportation of cryogenic liquids, and is especially suitable for space storage of cryogenic liquids. Background technique [0002] With the large-scale application of cryogenic liquids in the industrial field, the requirements for long-life and non-destructive storage and transportation of cryogenic liquids are getting higher and higher. Since the acquisition of cryogenic liquid must consume a lot of energy, the long-life storage and transportation of cryogenic liquid is also an important way to achieve energy saving. As we all know, only the liquid below the ambient temperature is called cryogenic liquid, usually the temperature is below minus 150°C. Therefore, various external heat leakage from the environment will inevitably lead to the endothermic phase transition of the cryogenic liquid, resulting in the failure of the...

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Problems solved by technology

[0005] For this reason, the purpose of the present invention is to solve the problem of unsatisfactory heat transfer in the flow dead zone of traditional circular heat pipes and fins in the prior art, and to improve the heat exchange of the space cryogenic liquid storage tank heat exchange elements by adopting the structure of symmetrical special-shaped tubes. Thermal efficiency, reducing the low-velocity zone on the leeward side, reducing flow resistance, and improving the efficiency of the forced jet pump, thereby achieving an overall improvement in system performance

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