Analysis on reason of high fault rate of pneumatic drain valve of steam turbine and treatment

Huadian Technology ›› 2015, Vol. 37 ›› Issue (5): 57-58.

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Analysis on reason of high fault rate of pneumatic drain valve of steam turbine and treatment

Huadian Weifang Power Generation Company Limited, Weifang 261204, China

Online:2015-05-25 Published:2015-10-08

Abstract

Abstract:

Abstract:Taking the 670 MW supercritical coalfired unit of a company as example, the reason of high fault rate of steam turbine pneumatic drain valve was analyzed.The targeted fault treatment method was given, and preventive measures were proposed. Originally, the faults occurred 16 times in unit startstopduration in average.After the treatment measures were implemented, the faults occurred 2. 5 times in unit startstop durationin average. The treatment result is favorable.

Key words:

font-family: E-HZ-PK74810c, color: black">Keywordsfont-family: SSJ-PK74820000002, color: black">: font-family: E-BZ-PK748e5, color: black">supercritical unitfont-family: SSJ-PK74820000002, color: black">, font-family: E-BZ-PK748e5, color: black">steam turbinefont-family: SSJ-PK74820000002, color: black">, font-family: E-BZ-PK748e5, color: black">pneumatic drain valvefont-family: SSJ-PK74820000002, color: black">, font-family: E-BZ-PK748e5, color: black">electromagnetic valvefont-family: SSJ-PK74820000002, color: black">, font-family: E-BZ-PK748e5, color: black">fault rate

YANG Yuxian.

Analysis on reason of high fault rate of pneumatic drain valve of steam turbine and treatment[J]. Huadian Technology, 2015, 37(5): 57-58.

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Analysis on reason of high fault rate of pneumatic drain valve of steam turbine and treatment

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