进气温度对燃气-蒸汽联合循环机组性能的影响  

Effect of the intake temperature of gas turbine on the performance of gas-steam combined cycle power plant

作　　者：张涛[1,2] 付忠广 刘志坦[2] 严志远[2] 朱鸿飞 张天清 ZHANG Tao;FU Zhongguang;LIU Zhitan;YAN Zhiyuan;ZHU Hongfei;ZHANG Tianqing(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China;Guodian Environmental Protection Research Institute,Nanjing 210031,Jiangsu,China)

机构地区：[1]华北电力大学能源动力及机械工程学院,北京102206 [2]国电环境保护研究院,江苏南京210031

出　　处：《化工进展》2020年第11期4367-4374,共8页Chemical Industry and Engineering Progress

基　　金：江苏省“六大人才高峰”高层次人才选拔培养资助计划(JNHB-080);中央高校基本科研业务专项资金项目(2018QN035)。

摘　　要：选取某200MW级燃气-蒸汽联合循环(GSCC)机组为研究对象,在环境温度与联合循环满负荷和部分负荷工况性能变化规律分析的基础上,本文提出了燃机进气温度控制技术。通过建模仿真和试验等方法研究了燃机进气温度变化对联合循环全工况性能的影响。结果表明,对于联合循环满负荷工况,通过进气冷却技术将燃机进气温度由32℃降低至12℃时,可增加联合循环功率14.2MW,同时提高热耗率2.3%;对联合循环80MW、120MW和160MW部分负荷工况,通过进气加热技术将燃机进气温度由12.5℃升高到40℃时,联合循环燃气耗量逐渐降低,联合循环效率分别提升0.86%、1.26%和1.11%。燃机进气温度控制技术建立了联合循环中底循环与顶循环间的耦合,在一定负荷和进气温度范围内调节燃机进气温度可有效改善联合循环性能,具有较高的研究和应用价值。A 200MW gas-steam combined cycle(GSCC)power plant was studied.Based on the analysis of the power plant performance changes under different ambient temperature and load,a novel technology of inlet air temperature control(IATC)of gas turbine was proposed.The performance of IATC technology was examined through simulation and experiments.Results show the output power of GSCC at full load increases by 14.2MW and the heat consumption rate rises by 2.3%,when IATC reduces the inlet air temperature from 32℃to 12℃.At partial load of 80MW,120MW and 160MW,the efficiency of GSCC has an increase of 0.86%,1.26%and 1.11%respectively,along with reduction in natural gas consumption,when the intake temperature of gas turbine is increased from 12.5℃to 40℃by inlet air heating technology.IATC can control the coupled relationship between topping cycle and bottoming cycle of GSCC.By adjusting the inlet air temperature of gas turbine at a controlled load and limited intake temperature range,the use of IATC can improve the performance of GSCC effectively.

关 键 词：燃气-蒸汽联合循环 环境温度 温度控制 进气冷却 进气加热 模拟 

分 类 号：TM611.31[电气工程—电力系统及自动化]