600 MW机组燃煤锅炉30%深度调峰下现场试验研究

On-site Experimental Research on a 600 MW Coal-firedBoiler Under 30% Deep Peak Shaving

随着新能源发电机组装机容量不断增加,需要提高电网的新能源消纳能力,因此对火电机组的调峰要求越来越高。为了研究燃煤机组深度调峰的能力及影响,基于广东省内某600 MW机组燃煤锅炉,开展低负荷稳燃现场试验研究。试验结果表明:该锅炉可以在30%额定负荷(180 MW)条件下稳定运行,且整个过程中现有的各系统经过调控后基本能正常工作;在降负荷过程和低负荷稳定运行过程中,机组环保参数无超标,各污染物排放指标符合环保要求。研究结果可作为机组深度调峰依据,为燃煤锅炉低负荷运行控制提供参考。

With the continuous increase of the installed capacity of new energy generators,it is necessary to improve the absorption capacity of the power grid,so the requirements for peak shaving of thermal power units are becoming increasingly high.In order to study the ability and impact of deep peak shaving of coal-fired units,this paper conducts on-site tests of low load stable combustion based on a 600 MW coal-fired boiler in Guangdong province.The test results show that the boiler can operate stably under 30%load(180 MW)conditions,and the existing systems can basically work normally after being regulated throughout the entire process.Load reduction by sliding parameters can meet the need of reducing system thermal shock during deep peak shaving.During the process of load reduction and low load stable operation,the environmental parameters of the unit are not out of the standard,and the emission concentrations of various pollutants meet the environmental requirements.The research results can serve as a basis for deep peak shaving of units and provide reference for low load operation of coal-fired boilers.