Online setting of safety valve in main steam pipe of ultrasupercritical boiler

Huadian Technology ›› 2009, Vol. 31 ›› Issue (2): 60-62.

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Online setting of safety valve in main steam pipe of ultrasupercritical boiler

SHAO Tianyou¹,MA Chuangang²

1.Huaneng Yuhuan Power Plant, Yuhuan 317604, China; 2.Maintenance Service Department for Yuhuan Power Plant, Zhejiang Thermal Power Construction Company, Yuhuan 317604, China

Received:1900-01-01 Revised:1900-01-01 Online:2009-02-25 Published:2009-02-25

Abstract

Abstract: The first Blevel maintenance of boiler No.2 of 1000MW ultrasupercritical unit in Huaneng Yuhuan Power Plant was accomplished after one year of operation, and online setting process was used in the maintenance for the safety valve of boiler pipe. The principle and the process flow of online setting were introduced emphatically, the result of online setting was analyzed. The problems occurred in setting process and their solution were described, according to these, some rationalization suggestions for subsequent safety valve setting of ultra-supercritical boiler were proposed.

Key words: ultra-supercritical boiler, safety valve, online setting

SHAO Tianyou;MA Chuangang. Online setting of safety valve in main steam pipe of ultrasupercritical boiler[J]. Huadian Technology, 2009, 31(2): 60-62.

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Online setting of safety valve in main steam pipe of ultrasupercritical boiler

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