Title:
MULTI-CHANNEL ALKALINE HYDROGEN PRODUCTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/213102
Kind Code:
A1
Abstract:
A multi-channel alkaline hydrogen production system. By means of the liquid outlets of a hydrogen alkali treatment unit and an oxygen alkali treatment unit, a circulating alkaline liquid is outputted to an alkaline liquid circulating pump and at least one controllable channel that is connected to the alkaline liquid circulating pump in parallel, and then the circulating alkaline liquid is returned to the negative electrode of an electrolyzer; thus, a controller can control the amount of produced hydrogen according to the measured current of the electrolyzer, then calculates a corresponding alkaline liquid circulation volume reference value according to the amount of produced hydrogen, and according to the alkaline liquid circulation volume reference value, adjusts the circulation amount of the alkaline liquid of the multi-channel alkaline hydrogen production system and changes the gas purity of the multi-channel alkaline hydrogen production system by controlling the working states of the controllable channels on the two ends of the alkaline liquid circulating pump. The present invention solves the problems that the purity of the produced hydrogen is low and the production of hydrogen is stopped when the electrolyzer is powered by a renewable energy system and the renewable energy system operates in a trough, so that the electrolyzer is always in a full-load operating state and is not limited in a specific load range, thereby being suitable for the hydrogen production system powered by the renewable energy system.
Inventors:
YU DEYE (CN)
WANG JIAN (CN)
GU YU (CN)
WANG JIAN (CN)
GU YU (CN)
Application Number:
PCT/CN2021/081992
Publication Date:
October 28, 2021
Filing Date:
March 22, 2021
Export Citation:
Assignee:
SUNGROW POWER SUPPLY CO LTD (CN)
International Classes:
C25B1/02; C25B1/04; C25B9/00; C25B15/02; C25B15/023
Domestic Patent References:
| WO2018168109A1 | 2018-09-20 |
Foreign References:
| CN202297794U | 2012-07-04 | |||
| CN106119885A | 2016-11-16 | |||
| CN207347670U | 2018-05-11 | |||
| JPS63250481A | 1988-10-18 | |||
| CN2375642Y | 2000-04-26 | |||
| CN111364053A | 2020-07-03 | |||
| CN111826670A | 2020-10-27 | |||
| CN212404294U | 2021-01-26 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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