一种新的直流锅炉启动疏水热量回收方案分析  

Analysis of a New Scheme for Heat Recovery of Start-up Drainage of Once-through Boiler

作　　者：王发庆 冯玉霄 田桂萍 冯亚 李小荣 WANG Fa-qing;FENG Yu-xiao;TIAN Gui-ping(Huaneng Jingmen Thermal Power Co.,Ltd.;Dongfang Boiler Group Co.,Ltd.)

机构地区：[1]华能荆门热电有限责任公司,湖北荆门448044 [2]东方电气集团东方锅炉股份有限公司

出　　处：《电站系统工程》2023年第6期13-15,共3页Power System Engineering

基　　金：四川省科技厅项目(2021ZYD0101)资助。

摘　　要：针对华能荆门热电有限责任公司1、2#机组锅炉项目进一步提高机组经济性的要求,分析了两种直流锅炉启动疏水回收余热利用方式,并且提出了一种全新的直流锅炉启动疏水热量回收方案:在启动疏水泵出口接疏水管道至凝结水一级疏冷器,利用疏水对流经一级疏水冷却器的凝结水进行加热;在启动疏水泵出口接疏水管道至暖风器,加热一次风。提出的启动疏水热量回收方案可在直流锅炉中广泛应用。In view of the requirements for further improving the unit economy of the 1#and 2#unit boiler projects of Huaneng Jingmen Thermal Power Co.,Ltd.,two waste heat utilization methods of once through boiler startup drainage recovery is analyzed,and proposes a new once through boiler startup drainage heat recovery scheme for this project:connect the drainage pipe at the outlet of the startup drainage pump to the condensate primary cooler,the condensed water passing through the primary drain cooler is heated by drain convection;connect the drain pipe to the air heater at the outlet of the start-up drain pump to heat the primary air.The proposed scheme of heat recovery from start-up drainage can be widely used in once through boilers.

关 键 词：锅炉 疏水扩容器 疏水 热量回收 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]