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介绍了石景山热电厂３号炉在部分燃烧器改进的基础上进行２０％～４０％额定负荷稳燃试验的情况，同时对深度调峰的运行方式进行了探索。阐明大中型火电机组深度调峰虽使机组效率有所降低，但综合煤耗、金属应力和机组使用年限等指标，相对于停备用方式，其为最佳选择。
Introduced the Shijingshan Thermal Power Plant No.3 furnace on the basis of the improvement of partial burners 20% ~ 40% of the rated load steady combustion test, at the same time, the operation mode of depth peak shaving was explored. It is clarified that the depth regulation of large and medium-sized thermal power units will reduce the efficiency of the unit, but it is the best choice for the comprehensive coal consumption, metal stress, unit service life and other indicators as compared with the stop-use mode.