Reformation of cooling water system of rollingcylinder type slag cooler of 440t/h CFB boiler

Abstract

Abstract: Abstract:In the cooling water system of boiler rollingcylinder type slag cooler of a thermal power company, the waste heat of the boiler slag was not recovered and reused effectively. The industrial water flux flowed through the slag cooler was larger. The temperature rise of the cooling water is larger. Aiming at above problems, in order to ensure the unit to operate safely, stably and economically, a cooling water system reformation scheme was proposed. The safety of the system design was verified by the pipeline hydraulic loss calculation. After the system reformed, the unit safety was improved further, and favorable economic benefit was obtained.

Key words: Keywords:circulating fluidized bed (CFB) boiler, rollingcylinder type slag cooler, operation, equivalent enthalpy drop method, economic benefit

DUAN Jingwei1, LI Jiangang2, CHEN Chuanping1, LIU Junfeng3. Reformation of cooling water system of rollingcylinder type slag cooler of 440t/h CFB boiler[J]. Huadian Technology, 2014, 36(9): 42-45.

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Reformation of cooling water system of rollingcylinder type slag cooler of 440t/h CFB boiler

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