Analysis on reasons of stall of primary air fan and preventive measures

Abstract

Abstract: Abstract:In a power generation company, the boiler MFT accident occurred caused by stall fault of the primary air fan. The reasons of the stall fault of the primary air fan were analyzed. The preventive measures were proposed. The RB protection logic of the primary air fan was perfected. The runback protection logic of low primary air pressure was added, and the MFT accident due to stall fault of primary air fan can be avoided. So the safe operation of the unit was ensured.

Key words: Keywords:primary air fan, stall, runback (RB) protection logic

YIN Bingyi, NIU Shusen, SHEN Henan. Analysis on reasons of stall of primary air fan and preventive measures[J]. Huadian Technology, 2015, 37(2): 57-58.

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Analysis on reasons of stall of primary air fan and preventive measures

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