Hydrogen liquefaction device

A liquefaction device and hydrogen technology, applied in liquefaction, refrigeration, liquefaction, solidification, etc., can solve the problems of low liquefaction efficiency and large investment, achieve the effects of small evaporation loss, reduce safety hazards, and reduce costs

Active Publication Date: 2018-08-31
ZHANGJIAGANG FURUI HYDROGEN ENERGY EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, facing large-scale industrial needs, current hydrogen liquefaction devices generally have problems such as low liquefaction efficiency and large investment

Method used

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Experimental program
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Effect test

Embodiment Construction

[0032] The technical scheme of the present invention will be further described in detail below in conjunction with the drawings and preferred embodiments.

[0033] Such as figure 1 As shown, the structure of the hydrogen liquefaction device is: including a first compressor unit, a purification device, a first cold box 101, a second cold box 102, a throttle expansion valve, a liquid hydrogen storage tank, a liquid nitrogen pre-cooling device, The second compressor group and the third compressor group 9.

[0034] The first compressor unit includes: a first low-pressure compressor and a first high-pressure compressor. The first low-pressure compressor can be a low-pressure unit-screw-filled compressor or a low-pressure dry piston multi-stage compressor. The machine can adopt a high-pressure unit-dry piston multi-stage compressor.

[0035] The purification device includes: a clean oil adsorber, a catalytic refining device, a drying device and an adsorber capable of removing impurities w...

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Abstract

The invention discloses a hydrogen liquefaction device. The hydrogen liquefaction device comprises a first compressor unit, a purifying device, a first cold box, a second cold box, a throttle expansion valve, a liquid hydrogen storage tank, a liquid nitrogen pre-cooling device, a second compressor unit and a third compressor unit, and the liquid nitrogen pre-cooling device provides the cold quantity for the first cold box. The hydrogen liquefaction device can recycle gasified low-temperature gaseous hydrogen in the liquid hydrogen storage tank, safety hidden dangers and energy waste caused bydirect releasing of the low-temperature gaseous hydrogen can be avoided, the cold quantity can further be provided for hydrogen liquefaction, energy consumption for hydrogen liquefaction is reduced, and the cost is reduced; and in addition, high-purity liquid hydrogen with the parahydrogen concentration in the liquid hydrogen being not less than 98% can be prepared through the hydrogen liquefaction device, the orthohydrogen concentration subjected to orthohydrogen and parahydrogen inversion spontaneously in the liquid hydrogen is effectively decreased, the liquid hydrogen evaporation loss is small, all gas and liquid channels and pipelines in the hydrogen liquefaction device are not liable to be blocked, and potential safety hazards are reduced.

Description

Technical field [0001] The invention relates to hydrogen liquefaction technology, in particular to a hydrogen liquefaction device. Background technique [0002] With the development of industry and the improvement of people's material living standards, the demand for energy is also increasing day by day. Because fossil energy such as coal and petroleum will inevitably pollute the environment when in use, coupled with its limited reserves, mankind is faced with the arduous challenge of developing efficient and clean secondary energy, so it is urgent to find renewable green energy. As an ideal energy carrier that can be obtained from multiple sources, hydrogen is one of the important bridges for the transition from fossil energy to renewable energy and will provide a new and important form of terminal energy utilization. [0003] Hydrogen energy utilization needs to solve a series of problems such as production, storage and transportation, and application, and storage and transporta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25J1/02
CPCF25J1/0235F25J1/0237F25J2215/10F25J1/001F25J1/005F25J1/0052F25J1/0067F25J1/0072F25J1/0205F25J1/025F25J1/0265F25J1/0288F25J2240/60F25J2245/90F25J2270/16
Inventor 况开锋倪中华严岩魏蔚邬海强郭道峰王秋霞
Owner ZHANGJIAGANG FURUI HYDROGEN ENERGY EQUIP CO LTD
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