Liquid hydrogen filling system and control method

By using a low -compressed compressor and a bubble tower to change heat in the hydrogen reinforcement equipment, the problem of high energy consumption and low thermal exchange efficiency in existing technologies has been solved, and significant energy consumption reduction and heat exchange efficiency are improved Essence

CN119333727APending Publication Date: 2025-01-21CENSTAR H2- ELECTRICITY SCI & TECH ZHENGZHOU CO LTD
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Patent Information

Application Number
CN202411312523.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-01-21

AI Technical Summary

Technical Problem

The existing hydrogen filling equipment has problems of high energy consumption and low heat exchange efficiency, especially the high compression ratio hydrogen compressor has high energy consumption and the existing cooling device has low heat exchange efficiency.

Method used

A low compression ratio compressor and a bubble tower are used for heat exchange. The low compression ratio compressor reduces power consumption, and the bubble tower directly exchanges heat between liquid hydrogen and hydrogen, improving heat exchange efficiency.

Benefits of technology

Compared with the high compression ratio compressor used by conventional hydrogen refueling stations, the power consumption is reduced by more than 60%, and the heat loss is small, and the heat exchange efficiency is high, which achieves the purpose of saving energy consumption and reducing costs.

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Abstract

The invention provides a liquid hydrogen filling system and a control method. The liquid hydrogen filling system comprises a pressurization loop, a hydrogen storage tank, a rewarming vaporizer and hydrogen filling equipment. The pressurization loop comprises a hydrogen buffer tank, a compressor and a bubble tower which are sequentially communicated and form a circulation loop. The bubble tower is used for heat exchange of hydrogen correspondingly output by the compressor, and the hydrogen subjected to heat exchange in the bubble tower is output into the hydrogen buffer tank. And the hydrogen storage tank is used for supplementing liquid hydrogen for the bubble tower. And the rewarming vaporizer is used for heating hydrogen which comes from the outlet of the bubble tower and is lower than a set temperature value and then flows into the hydrogen buffer tank. And the hydrogen charging equipment is used for receiving hydrogen from the outlet of the bubble tower or the outlet of the rewarming vaporizer and supplying hydrogen to the hydrogenation equipment when the pressure of the hydrogen buffer tank reaches a high limit pressure value. According to the liquid hydrogen filling system and the control method, the compressor with the low compression ratio is adopted, power consumption is reduced, the bubble tower is adopted for heat exchange, heat loss is reduced, and the heat exchange efficiency is high.
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Citation Information

Patent Citations

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