Analysis on reasons of jam fault of hot primary air valve in 600MW coalfired boiler and countermeasures

Huadian Technology ›› 2012, Vol. 34 ›› Issue (10): 34-36.

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Analysis on reasons of jam fault of hot primary air valve in 600MW coalfired boiler and countermeasures

ZHANG Zhenke1,JI Guanghui1, WANG Ying2, YUAN Liqiang1, LIU Wei1

1.Shenhua Hebei Guohua Dingzhou Power Generation Company Limited, Dingzhou 073000, China; 2.Thermal and Electric Power Design Institute of NORINDAR International, Shijiazhuang 050011, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-10-25 Published:2012-10-25

Abstract

Abstract:

The reasons of the jam fault of the hot primary air valve in the 600MW coalfired boiler were analyzed combining with practical example. The

method to solve the jam fault of the hot primary air valve was put forward. A series of treatment measures was adopted for the air valve， and good effect

was obtained. The requirement of opening adjustment of the hot primary air valve in higher frequency and in long time was satisfied，and the safety and

reliability of the equipment operation were improved.

Key words: coal-fired boiler, hot primary air valve, jam, analysis, reformation

ZHANG Zhenke;JI Guanghui;WANG Ying;YUAN Liqiang;LIU Wei. Analysis on reasons of jam fault of hot primary air valve in 600MW coalfired boiler and countermeasures[J]. Huadian Technology, 2012, 34(10): 34-36.

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Analysis on reasons of jam fault of hot primary air valve in 600MW coalfired boiler and countermeasures

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