Countermeasures for ashconveyor faults treatment by destructing water seal in 600MW supercritical boiler

Huadian Technology ›› 2009, Vol. 31 ›› Issue (3): 11-13.

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Countermeasures for ashconveyor faults treatment by destructing water seal in 600MW supercritical boiler

LIU Xiaojun,XIAO Lizheng

Huadian Xiangfan Power Generation Corporation Limited, Xiangfan 441141, China

Received:1900-01-01 Revised:1900-01-01 Published:2009-03-25

Abstract

Abstract: For the 600MW supercritical units with boiler with dryash furnace of Huaian Xiangfan Power Generation Corporation Limited,there are no slag well and shut down valve at the furnace bottom, the water seal at the bottom has to be destroyed and the slag has to be discharged when the ashconveyor was breakdown, otherwise the boiler has to be shutdown for overhauls. Summing up the experiences and lessons of the former failures, the counter measures were developed, it has been avoided to boiler overtemperature and MFT in the ashconveyor faults.

Key words: 600MW supercritical boiler, destroy water seal, ash-conveyor failure, countermeasure

LIU Xiaojun;XIAO Lizheng. Countermeasures for ashconveyor faults treatment by destructing water seal in 600MW supercritical boiler[J]. Huadian Technology, 2009, 31(3): 11-13.

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Countermeasures for ashconveyor faults treatment by destructing water seal in 600MW supercritical boiler

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