Same side high and middle pressure regulating valve shutdown instantly cause analysis and treatment

Abstract

Abstract:

A thermal power plant No.2 unit high pressure regulating valve location feedback signal fluctuated, and caused fluctuation of steam turbine digital electrohydraulic control system (DEH). By site check and analyze, the cause of this incident was determined. The potential safety hazard of regulating valve shutdown instantly was eliminated. Which could be referred for equipment installation and maintenance.

Key words:

thermal power plant, digital electrohydraulic control system(DEH), feedback signal, regulating valve, fault analysis

LIU Weixing.

Same side high and middle pressure regulating valve shutdown instantly cause analysis and treatment

[J]. Huadian Technology, 2017, 39(2): 48-50.

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Same side high and middle pressure regulating valve shutdown instantly cause analysis and treatment

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