490t/h循环流化床供热机组滚筒冷渣器余热利用改造及优化

华电技术 ›› 2010, Vol. 32 ›› Issue (12): 40-43.

490t/h循环流化床供热机组滚筒冷渣器余热利用改造及优化

郭增良1，袁雄俊2 

1.河北建投宣化热电有限责任公司，河北宣化072100； 2.华北电力设计院工程有限公司，北京100120

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-12-25

Reformation and optimization for waste heat recovery of rollingcylinder slag cooler in 490t/h CFB heatsupply unit

GUO Zengliang1,YUAN Xiongjun2

1.Xuanhua Thermal Power Generation Corporation Limited of Hebei Construction & Investment Corporation Limited, Xuanhua 072100, China; 2.North China Power Engineering Corporation Limited, Beijing 100120, China

Received:1900-01-01 Revised:1900-01-01 Published:2010-12-25

摘要/Abstract

摘要： 对某电厂490t/h循环流化床锅炉滚筒冷渣器余热利用改造提出了3个方案，利用等效热降法对其进行了经济性分析对比。指出用尽可能高温度的冷却水和尽可能少的冷却水量去冷却冷渣器，可获得更好的余热利用经济性。针对供热机组的特点，提出了冷渣器余热利用的“组合切换式”方案，有效解决了采暖供热机组的CFB冷渣器余热利用的高效性与安全性的矛盾。

关键词: 循环流化床锅炉, 滚筒冷渣器, 等效热降法, 组合切换式, 余热利用

Abstract: Three feasible reformation schemes for waste heat utilization of the cylindrical slag cooler in 490 t/h CFB boiler of a power plant were put forward, and their economic efficiencies were analyzed and compared by using the equivalent enthalpy drop method. It is pointed out that the better economic efficiency for waste utilization can be obtained by using the cooling water with temperature as high as possible and its quantity as less as possible. Aiming at the characteristics of the heatsupply unit, a ‘combined switchovertype’ scheme for slag cooler waste utilization was put forward, and the contradiction between the highefficiency and safety of CFB slag cooler waste heat utilization in heatsupply unit was solved effectively. 


Key words: circulating fluidized bed boiler, cylindrical slag cooler, equivalent enthalpy drop method, combined switchover-type, waste heat recovery

郭增良;袁雄俊 . 490t/h循环流化床供热机组滚筒冷渣器余热利用改造及优化[J]. 华电技术, 2010, 32(12): 40-43.

GUO Zengliang;YUAN Xiongjun. Reformation and optimization for waste heat recovery of rollingcylinder slag cooler in 490t/h CFB heatsupply unit[J]. Huadian Technology, 2010, 32(12): 40-43.

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