Title:
HIGH-PRECISION ACTIVE PRESSURE CONTROL METHOD FOR ALKALINE WATER ELECTROLYZER
Document Type and Number:
WIPO Patent Application WO/2023/226285
Kind Code:
A1
Abstract:
The present invention relates to a high-precision active pressure control method for an alkaline water electrolyzer, comprising the following steps: acquiring external input power of the electrolyzer and real-time pressure in the electrolyzer under a fluctuating working condition; determining a power range where the external input power is located, determining a pressure setting value according to the power range where the external input power is located, and stabilizing the pressure in the electrolyzer to the pressure setting value; and if the external input power is increased or decreased, determining the opening degree, needing to be changed, of pressure regulating valves according to a power change value, and gradually increasing or decreasing the opening degree of the pressure regulating valves. Compared with the prior art, according to the present invention, the external input power is acquired in real time to determine the pressure setting value so as to roughly adjust the opening degree of the pressure regulating valves, then the opening degree of the pressure regulating valves is finely adjusted according to increase and decrease of the external input power, and two different types of pressure regulating valves, i.e., high-precision large-flow pressure regulating valves and low-precision small-flow pressure regulating valves are used, such that the pressure change under different fluctuation working conditions can be adapted, and the requirement for pressure stability is satisfied.
Inventors:
ZHANG CUNMAN (CN)
ZHANG ZAIZUN (CN)
JIN LIMING (CN)
GENG ZHEN (CN)
LV HONG (CN)
ZHANG ZAIZUN (CN)
JIN LIMING (CN)
GENG ZHEN (CN)
LV HONG (CN)
Application Number:
PCT/CN2022/126238
Publication Date:
November 30, 2023
Filing Date:
October 19, 2022
Export Citation:
Assignee:
UNIV TONGJI (CN)
International Classes:
C25B15/023; C25B1/04; C25B9/60; C25B15/02
Foreign References:
| CN115011999A | 2022-09-06 | |||
| CN113604840A | 2021-11-05 | |||
| CN114134527A | 2022-03-04 | |||
| CN114381755A | 2022-04-22 | |||
| CN113430536A | 2021-09-24 | |||
| CN113373477A | 2021-09-10 | |||
| CN111850591A | 2020-10-30 | |||
| US20030209441A1 | 2003-11-13 | |||
| JP2020041202A | 2020-03-19 | |||
| CN113529105A | 2021-10-22 |
Attorney, Agent or Firm:
SHANGHAI KESHENG INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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