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Control system and method used for reaction gas compressor

A control system and compressor technology, applied in the field of control, can solve problems such as surge

Inactive Publication Date: 2016-01-20
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a control system and method for a reaction gas compressor to solve the problem of surge in the reaction gas compressor in the prior art

Method used

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  • Control system and method used for reaction gas compressor
  • Control system and method used for reaction gas compressor

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Embodiment approach

[0018] According to one embodiment of the present invention, the control device 20 controlling the return valve 30 of the reaction gas compressor according to the comparison result includes:

[0019] When the detected flow rate at the inlet of the reaction gas compressor is less than the surge flow rate, the control device 20 controls the return valve 30 to open;

[0020] When the detected flow rate at the inlet of the reactant gas compressor is greater than the surge flow rate, the control device 20 controls the return valve 30 to close.

[0021] Therefore, when the detected flow rate is less than the surge flow rate, the control device 20 can control the return valve 30 to open, thereby allowing the gas at the outlet of the reaction gas compressor to flow back into the reaction gas The inlet of the compressor ensures that the flow rate at the inlet of the reaction gas compressor is always greater than the surge flow rate, thereby preventing the occurrence of surge. And when...

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Abstract

The invention relates to the control field and discloses a control system and a control method used for a reaction gas compressor. The system comprises a detecting device, a control device and a reflux valve, wherein the detecting device is used for detecting a flow rate of an inlet of the reaction gas compressor; the control device is connected with the detecting device and used for comparing the detected flow rate of the inlet of the reaction gas compressor with a surging flow rate, and controlling the reflux valve of the reaction gas compressor according to the compared results; and the reflux valve is connected with the control device and used for enabling gas at an outlet of the reaction gas compressor to flow back to the inlet of the reaction gas compressor under an open condition. According to the control system and the control method disclosed by the invention, surge of the reaction gas compressor can be effectively prevented.

Description

technical field [0001] The invention relates to the field of control, in particular to a control system and method for a reaction gas compressor. Background technique [0002] The reaction gas compressor is the key equipment in the process of hydrocarbon refining and separation. Its function is to compress the reaction gas, increase the pressure of the reaction gas, and provide conditions for subsequent separation. [0003] The reaction gas compressor plays an important role in the coal chemical industry. However, during the operation of the compressor, surge phenomenon often occurs. Surge is an abnormal working phenomenon of the reaction gas compressor. Its distinctive feature is that the inlet flow of the compressor is reduced due to some reasons. When it is reduced to a certain extent, serious rotation will occur in the entire diffuser flow channel Stall, the outlet pressure of the compressor drops suddenly; when the pressure of the pipe network connected to the compress...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
Inventor 郭辉王玲左书全赵文博王亮
Owner CHNA ENERGY INVESTMENT CORP LTD
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