凝汽式发电机组热电联产改造方案的选择  

Selection of cogeneration improvement schemes for condensing generating unit

作　　者：朱晓群[1] 

机构地区：[1]西北电力设计院,陕西西安710075

出　　处：《宁夏电力》2014年第4期54-57,共4页Ningxia Electric Power

摘　　要：针对某电厂2×135 MW纯凝汽式机组改成供热机组问题,从投资大小、改造难度、对发电量的影响等方面对2种改造方案进行了分析,最终选择了风险小、成本低的改造方案。应用结果表明:机组实现了热电联产,提高发电厂循环热效率20%;1台机组节约燃煤83 040 t/a,节约燃料费用1 992.96万元/a;减少灰渣排量20 760 t/a,减少CO2排放量8 367 m3/a,减少SO2排放量85 m3/a,节能环保效益显著。Aiming at the problem of 2×135 MW condensing generating units changed supply units in a power plant, analyzes 2 kinds of retrofit schemes from the size of the the transformation difficulty and the impact on small risk and low modification cost. The applic circulating heat efficiency increase 20%; 11992.96×10^4 yuan/a, reduce ash emissions of SO2 emissions of 85 m3/a, the benefits of energy heating investment, generated capacity, finally selects the scheme ation result shows that the units realize cogeneration, unit save coal of 83040 t/a , save fuel costs of 20760 t/a, reduce CO2 emissions of 8367 m3/a and saving and environmental protection are prominent.

关 键 词：纯凝汽式机组 供热机组 热效率 热电联产 

分 类 号：TK282.1[动力工程及工程热物理—动力机械及工程]