燃气轮机长期备用下烟道阻力上升原因分析  

Analysis on the Reasons for the Rising Flue Resistance of Gas Turbines in Long-term Shutdown

作　　者：陶振涛 许茂贤 张卫 梁海宁[3] 周永刚[1] 赵虹[1] TAO Zhentao;XU Maoxian;ZHANG Wei;LIANG Haining;ZHOU Yonggang;ZHAO Hong(State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China;Zhejiang Zheneng Changshan Natural Gas Power Generation Co.,Ltd.,Changshan 324000,Zhejiang Province,China;Hangzhou Huadian Banshan Power Generation Co.,Ltd.,Hangzhou 310015,China)

机构地区：[1]浙江大学能源清洁利用国家重点实验室,杭州310027 [2]浙江浙能常山天然气发电有限公司,浙江常山324000 [3]杭州华电半山发电有限公司,杭州310015

出　　处：《动力工程学报》2023年第6期692-699,共8页Journal of Chinese Society of Power Engineering

摘　　要：根据电厂机组3年间的整体停机情况和运行负荷数据,分析烟道阻力与机组负荷之间的关系;根据停机时长、停机前烟道阻力、平均相对湿度和平均温度,利用多元线性回归分析影响机组停机期间烟道阻力上升的主要因素。结果表明:停机天数会对烟道阻力产生显著的正向影响,停机前烟道阻力与烟道阻力增幅有显著的负向关系,平均相对湿度和平均温度对烟道阻力升高产生的正相关影响较小;当停机时间达到30天、停机期间相对湿度达到49%时,该机组停机期间烟道阻力有较大可能会升高。According to the overall shutdown condition and operating load data of power plant units over the past three years,the relationship between flue resistance and unit load was analyzed.Based on the duration of shutdown,flue resistance before shutdown,average relative humidity and average temperature,multiple linear regression analysis was used to analyze main factors affecting the increase of flue resistance during unit shutdown.Results show that the number of shutdown days has a significant positive impact on the flue resistance,and there is a significant negative relationship between flue resistance before shutdown and the increase of flue resistance.Average relative humidity and average temperature show little positive impact on the increase of flue resistance.When the shutdown time reaches 30 days and the relative humidity reaches 49%,the flue resistance of the unit is likely to increase during the shutdown period.

关 键 词：燃气轮机 停机 腐蚀 烟道阻力 

分 类 号：TK228[动力工程及工程热物理—动力机械及工程]