超临界火电机组滑压运行优化与节能性分析  

Optimization and energy-saving analysis of sliding pressure operation of supercritical thermal power units

作　　者：张伶俐 李红燕 张兆生 ZHANG Lingli;LI Hongyan;ZHANG Zhaosheng(Aviation Engineering Institute,Jiangsu Aviation Technical College,Zhenjiang 212134,China;Jiangsu Zhenjiang Generator Co.,Ltd.,Zhenjiang 212100,China)

机构地区：[1]江苏航空职业技术学院航空工程学院,江苏镇江212134 [2]江苏镇江发电有限公司,江苏镇江212100

出　　处：《黑龙江电力》2022年第6期532-536,541,共6页Heilongjiang Electric Power

摘　　要：滑压运行方式是汽轮机在低负荷时较为经济的运行模式,在该工况下可以降低汽轮机能耗及供电煤耗。以某火力发电厂630 MW超临界火电机组为例,结合原DCS设计值与通流改造后设计值,通过试验拟合出滑压运行曲线,制定出负荷与机前主汽压力数值关系对应表指导机组运行,有效提高了汽轮机组运行经济性。The sliding pressure operation mode is a relatively economical operation mode of the steam turbine at low load, which can reduce the energy consumption of the steam turbine and the coal consumption for power supply. Taking a 630 MW supercritical thermal power unit in a thermal power plant as an example, combined with the original DCS design value and the design value after the flow transformation, the sliding pressure operation curve is fitted through the test, and the corresponding table of the relationship between the load and the main steam pressure in front of the machine is formulated to guide the operation of the unit, which improves the operation economy of the steam turbine unit effectively.

关 键 词：超临界火电机组 滑压运行 电厂节能 运行优化 热耗率 

分 类 号：TM621[电气工程—电力系统及自动化]