自20世纪最后几年至今,我们电力行业在装机容量和发电量方面一直稳居世界第二位。由于我国能源构成的限定,我国以火力发电为主,而且主要是燃煤火电厂。到20世纪末,我国火电机组由亚临界参数和超临界参数为主构成,锅炉蒸发量为1000～2650t/h,蒸汽压力为18～25Mpa,所配机组动力为300～800MW。除了这些带基本负荷的主 Since the last few years of the 20th century so far, our power industry has been ranked second in the world in terms of installed capacity and power generation. Due to the limitation of China’s energy composition, China mainly produces thermal power, and mainly coal-fired thermal power plants. By the end of the 20th century, the thermal power units in China consisted mainly of subcritical parameters and supercritical parameters. The boiler evaporation was 1000-2650 t / h and the steam pressure was 18-25 MPa. The power of the unit was 300-800 MW. In addition to these with the basic load of the Lord