Reformation of air preheater adopting flexible contact mode sealing technology

Huadian Technology ›› 2009, Vol. 31 ›› Issue (7): 57-59.

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Reformation of air preheater adopting flexible contact mode sealing technology

DU Zhongping¹, YANG Sen¹, YANG Zhiguo¹, MA Lijun², MENG Jinlai²

1.Datang Hancheng Second Power Generation Corporation Limited, China Datang Corporation, Hancheng 715400, China; 2.Beijing Huanengda Electric Technique Application Corporation Limited, Beijing 100070, China

Received:1900-01-01 Revised:1900-01-01 Online:2009-07-25 Published:2009-07-25

Abstract

Abstract: The rotary air preheater leakage ratio of Datang Hancheng Second Power Generation Corporation Limited were greatly exceeded the designed value, and this seriously influenced on economical benefit of the power plant. The reason of air-preheater leakage was analyzed, and a reformation method by using flexible contact-type sealing technology was presented. Based on the comparison of air leakages and economical benefits before and after reformation, it can be confirmed that the application of flexible contact type sealing technology in rotary air preheater reformation is successful.

Key words: air preheater, seal, flexible contact-type, air leakage, reformation

DU Zhongping;YANG Sen;YANG Zhiguo;MA Lijun;MENG Jinlai. Reformation of air preheater adopting flexible contact mode sealing technology[J]. Huadian Technology, 2009, 31(7): 57-59.

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