One-key start hydrogen pump sequence control method and system for hydrogen water ring compressor

Abstract

The invention discloses a one-key start hydrogen pump sequence control method for a hydrogen water ring compressor, which comprises the following steps: S1, detecting the sum of currents of a three-stage device and enabling the sum to be within a preset value, enabling parameters of a plurality of hydrogen pumps to be within the preset value, and enabling the opening degrees of a return valve, an emptying valve and a regulating valve in each hydrogen pump to be within a preset range; S2, after the hydrogen pump and the water ring pump are started in a one-key mode, prompting an emptying valve of the washing tower be closed, judging whether the state feedback of an emptying stop valve of the washing tower is closed or not, and when the state feedback of the emptying stop valve is closed, adjusting a second hydrogen pump to be in a manual state, and adjusting a first hydrogen pump to be in an automatic state; and further determining whether pressure in hydrogen pump is greater than 75 KPa, and determining that at least two of plurality of water ring pumps are in operating state. According to the invention, one-key starting of the hydrogen pump and the water ring pumps can be achieved, the states of the hydrogen pump and the water ring pumps can be automatically switched, and the pressure of the hydrogen pump and the opening degree of an automatic control valve in the hydrogen pump can be automatically adjusted; and unified monitoring of a plurality of hydrogen pumps and a plurality of water ring pumps is achieved.

Description

technical field [0001] The invention relates to the technical field of hydrogen pump control, in particular to a method and system for sequentially controlling a hydrogen water ring compressor with one key to start a hydrogen pump. Background technique [0002] In view of the company's Industry 4.0 promotion plan, it is necessary to transform the hydrogen water ring compressor in the hydrogen chloride workshop to achieve the goal of one-key start-up. [0003] At present, the operation of the water ring pump is manually started and stopped, and manual on-site adjustment is required when the fluctuation is large; after the transformation, the on-site operation is carried out to confirm the working conditions. In addition, multiple water ring pumps and multiple hydrogen pumps are independently controlled, and multiple A DCS screen monitor. Contents of the invention [0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by th...

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Problems solved by technology

[0003] At present, the operation of the water ring pump is manually started and stopped, and manual on-site adjustment is required when the fluctuation is large; after the transformation, the on-site operation is carried out to confirm the working conditions. In addition, multiple water ring pumps and multiple hydrogen pumps are independently controlled, and multiple A DCS screen monitoring

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