改进型630MW汽轮机低压缸宽负荷特性研究  

Study on Wide Load Characteristics of 630MW Improved Turbine Low Pressure Cylinder

作　　者：李俊 应光耀 包劲松 郑添 王在华 李龙 陈立明 杨典兵 LI Jun;YING Guang-yao;BAO Jin-song;ZHENG Tian;WANG Zai-hua;LI Long;CHEN Li-ming;YANG Dian-bing(Hangzhou Yineng Electric Technology Company Limited,Hangzhou 310014,China;State Grid Zhejiang Electric Power Research Institute,Hangzhou 310014,China)

机构地区：[1]杭州意能电力技术有限公司,杭州310014 [2]国网浙江省电力有限公司电力科学研究院,杭州310014

出　　处：《汽轮机技术》2021年第2期141-143,160,共4页Turbine Technology

摘　　要：以某通流改造后630MW汽轮机的低压缸为对象,开展“低压缸宽负荷特性”试验研究。通过微增出力试验,给出低压缸效率对应单排容积流量的最佳工作区域,为改善机组运行提出了针对性意见;对两种不同低压缸末级叶片进行性能比对,指出在当前负荷率不高的状况下,适当的低压缸末级叶片选型,有助于提高机组宽负荷运行经济性。Taking the low-pressure cylinder of a 630MW steam turbine as a target,a test study on the"low-pressure cylinder wide-load characteristics"was carried out.Through the micro-increasing output test,the best working area of the low-pressure cylinder efficiency corresponding to the single-row volume flow is given,and targeted suggestions are made to improve the operation of the unit.Under the current situation that the rate is not high,the proper selection of the final stage blades of the low-pressure cylinder helps to improve the economics of the unit's wide-load operation.

关 键 词：低压缸 宽负荷特性 微增出力 容积流量 末级叶片 经济性 

分 类 号：TK267[动力工程及工程热物理—动力机械及工程]