进气温度对燃气-蒸汽联合循环机组性能的影响

Effect of Air Intake Temperature on the Performance of Gas-steam Combined Cycle Unit

进气温度的变化会对燃气-蒸汽联合循环机组的性能产生一定的影响。研究对象选取某电厂200MW级燃气-蒸汽联合循环机组,构建了燃气-蒸汽联合循环系统的变工况模型,利用改变环境温度以及负荷状态,通过建模仿真和试验的方法分析了进气温度变化对联合循环机组形成的影响。结果表明,在联合循环机组满负荷状态下以及部分负荷状态下,进气温度的变化在一定负荷与温度范围内能够有效改善机组的联合循环性能,可以在实际应用过程中广泛推行。

The change of the intake air temperature will have a certain impact on the performance of the gas-steam combined cycle unit.The research object selected the 200MW gas-steam combined cycle unit of a power plant,and constructed the variable working condition model of the gas-steam combined cycle system.Using the change of environmental temperature and load state,the influence of the intake temperature change on the formation of the combined cycle unit was analyzed by modeling,simulation and test methods.The results show that the change of air intake temperature at full load and at partial load state can effectively improve the combined cycle performance within a certain load and temperature range,which can be widely implemented in the practical application process.