燃气-蒸汽联合循环风机热电负荷特性分析

摘要构建了某9F级联合循环机组的性能计算模型,以EBSILON软件为系统完成了联合循环机组的仿真预测。首先探究不同抽汽系数下系统热电负荷特点指标随燃机负荷率的差异,其次从联合循环风机热电负荷可行域、机组运行效益或者机组收益3个方面,分析了环境温度变化对联合循环风机热电负荷特点的制约。结果证实:随着环境温度升高,联合循环风机的供水能力与发电能力均增加;机组运行效益、机组单位利润与锅炉总净回报随采暖负荷降低均迅速减少;其中燃气联合循环机组,机组运行效益与机组单位利润在不同的环境温度下展现不同的下降速度,环境温度越高,增长速度越大;机组总净收益在不同环境温度下随供热负荷减小而减少的速度基本相同。The performance calculation model of a 9 F level combined cycle unit is built,and the simulation analysis of the combined cycle unit is completed with EBSILON model. Firstly,the variation of thermoelectric load characteristic index with the load rate of gas turbine under different extraction coefficient is studied. Secondly燃气联合循环机组,the influence of ambient temperature change on the thermoelectric load characteristics is analyzed from three aspects: the feasible area of the thermoelectric load of the combined cycle unit,the operating efficiency of the unit and the revenue of the unit. Results indicate that the heating capacity and power generation capacity are reduced with the increase of ambient temperature. The operating efficiency,unit income and total net income of the unit gradually increase with heating load. Among them,the operating efficiency and unit income show different growth rates at different ambient temperatures;the higher the ambient temperature,the greater the growth rate. The total net income of the unit increases with heating load at the same rate at different ambient temperatures.

作者马泉钱小军司风琪周建新MA Quan;QIAN Xiao-jun;SI Feng-qi;ZHOU Jian-xin(Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education,Southeast University,Nanjing, China,Post Code :210096;Beijing Jingxi Gas Fired Thermal Power Co.Ltd.,Beijing,China,Post Code:100041)

机构地区东南大学能源热转化以及过程测控教育部重点实验室北京京西燃气热电

出处《热能动力工程》CASCSCD北大核心2019年第2期14-22,共9页Journal of Engineering for Thermal Energy and Power

基金中央高校基本科研业务费专项资金资助工程(3203007403).

关键词联合循环仿真建模热电负荷环境温度combined cyclesimulation modelthermoelectric loadambient temperature

分类号TM611.31[电气工程—电力系统及自动化]

作者简介马泉(1993-),男,河南南阳人,东南大学硕士;通讯作者:司风琪(1973-),男,江苏无锡人,东南大学教授,E-mail:fqsi@seu.edu.cn.

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