Operation and control measures to avoid pipe wall over temperature during external steam supply

Abstract

Abstract:

Abstract:After reforming the 2×300 MW coal fired generators in Yunnan Huadian Kunming Power Generation Company Limited,part of the steam in unit primary re heater is extracted for external steam supply.Since the boiler steam production increases by around 40 ton per hour under the same load,the pipe walls of super heater and re-heater are always over temperature.Optimal adjustment measures on denitrification systems,combustion and air distribution are taken so that pipe wall over temperature problem can be controlled effectively.

Key words: ">Keywords:">external steam supply, heating surface, over , ">temperature, operation and control

YANG Lei, WAN Qingxiong, ZHAO Xiaoping. Operation and control measures to avoid pipe wall over temperature during external steam supply[J]. Huadian Technology, 2015, 37(11): 41-43.

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Operation and control measures to avoid pipe wall over temperature during external steam supply

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