Problems existing in airpreheater of WGZ670/1402 type boiler and reformation measure

Huadian Technology ›› 2010, Vol. 32 ›› Issue (11): 52-54.

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Problems existing in airpreheater of WGZ670/1402 type boiler and reformation measure

WANG Qingdong

Shandong Bainian Electric Power Development Corporation Limited, Longkou 265700, China

Received:1900-01-01 Revised:1900-01-01 Online:2010-11-25 Published:2010-11-25

Abstract

Abstract: In the Shandong Bainian Electric Power Development Corporation Limited, the temperature of the exhaust flue gas was higher, which was caused by the larger air leakage and the lower heat exchange efficiency of the airpreheater. In order to raise the heat efficiency of the boiler, the problems existed in airpreheater were analyzed, and the rectification measures were formulated. Based on investigation and argumentation, the airpreheater was replaced by the rotary airpreheater. After the reformation, the heat efficiency of the boiler increased by 3%, and the economic benefit was remarkable.

Key words: air preheater, existing problem, reformation measure, benefit analysis

WANG Qingdong. Problems existing in airpreheater of WGZ670/1402 type boiler and reformation measure[J]. Huadian Technology, 2010, 32(11): 52-54.

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Problems existing in airpreheater of WGZ670/1402 type boiler and reformation measure

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