330MW机组供热回水不同回收方案的经济性分析  

Economic Analysis on Different Heat Supply Backwater Schemes of a 330MW Unit

作　　者：郑之民 王立刚 魏建 陈磊 ZHENG Zhimin;WANG Ligang;WEI Jian;CHEN Lei(Datang Lubei Power Generation Co.,Ltd,Binzhou 251909,China)

机构地区：[1]大唐鲁北发电有限责任公司,山东滨州251909

出　　处：《山东电力技术》2021年第4期72-76,共5页Shandong Electric Power

摘　　要：以某330 MW热电联产机组供热回水回收方案改造为研究对象,基于等效热降法建立了机组在不同回收位置、回水温度、机组负荷、回水流量下的经济性指标计算模型,对比分析不同因素影响下的回水回收经济性变化,结果表明在回水温度、机组负荷、回水流量一定情况下存在最经济回收方案。以机组实际供热回水改造案例进行经济效益计算分析,提出了一种最经济的改造方案。The reforming scheme of heat supply backwater for a 330 MW cogeneration unit is studied in this paper.Based on the method of equivalent enthalpy drop,the economic index calculation model of the unit under different recovery positions,return water temperature,unit load and return water flow is established.On this basis,a comparative analysis of the economic changes of backwater recovery under different conditions is carried out,the results show that the most economical recovery scheme exists under certain conditions of return water temperature,unit load,and return water flow.The economic benefit calculation and analysis are carried out based on the actual heat supply and return water transformation case of the unit,and a most economical transformation plan is proposed.

关 键 词：热电联产 供热回水 等效热降 经济性分析 

分 类 号：TM621[电气工程—电力系统及自动化]