Treatment of defect of steam extraction control valve of 9E gassteam combined cycle turbine

Huadian Technology ›› 2013, Vol. 35 ›› Issue (4): 47-49.

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Treatment of defect of steam extraction control valve of 9E gassteam combined cycle turbine

ZHANG Taishan, LU Shiwen, ZHU Wei

(Hubei Huadian Wuchang Thermal Power Generation Company Limited, Wuhan 430062, China)

Received:1900-01-01 Revised:1900-01-01 Online:2013-04-25 Published:2013-04-25

Abstract

Abstract: The defects in design and manufacturing of the heatsupplying extraction control valve of the gassteam combined cycle turbine were analyzed. The reasons causing the transition connector screw rod of the piston rod of the hydraulic servomotor to bend during startup were found. The defects treatment concrete measures were given, and the normal operation of the extraction control valve was ensured.

Key words: gas-steam combined cycle unit, gas turbine, steam extraction control valve, transition connector, defect

ZHANG Taishan;LU Shiwen;ZHU Wei. Treatment of defect of steam extraction control valve of 9E gassteam combined cycle turbine[J]. Huadian Technology, 2013, 35(4): 47-49.

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Treatment of defect of steam extraction control valve of 9E gassteam combined cycle turbine

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