供热背压机组排汽引入600 MW机组深调运行可行性分析

Feasibility Analysis of Heat Supply Back-Pressure Unit Exhaust Steam Lead into 600 MW Depth Peak-Shaving Unit

为进一步接纳新能源发电量,防止新能源弃电情况发生,火电机组低负荷运行和深度调峰势在必行。辽宁清河发电有限责任公司1号、9号机组深度调峰已经运行3年,供热首站6000 kW背压汽轮机组已经成功运行3个供暖期,从改造目标、改造方案和经济性进行论证将供热背压机组排汽引入到600 MW机组深调运行的可行性,并对机组深调期间的经济性和稳定性进行分析,为火电机组低负荷运行和深度调峰提供参考。

With the continuous increase of new energy installed capacity,to further accept new energy power generation and to prevent new energy waste,low load operation and depth peak-shaving of thermal power units are imperative.No.1 and No.9 units have been in depth peak-shaving for 3 years.The 6000 kW back-pressure turbine unit in the first heating station has been successfully operated for three heating periods.This paper expounds from three aspects of transformation goal,transformation plan and economic analysis.The feasibility of introducing exhaust steam from heat supply back-pressure unit into 600 MW depth peak-shaving unit is demonstrated.The economy and stability of the unit during depth peak-shaving are analyzed.