国产引进型300MW汽轮机的通流改造  

Reformation of flow passage for introduce type domestic 300MW steam turbine

作　　者：洪昌少 段小云 

机构地区：[1]广州珠江电厂,广东广州511457

出　　处：《华电技术》2011年第5期47-50,66,共5页HUADIAN TECHNOLOGY

摘　　要：广州珠江电厂国产引进型300 MW机组汽轮机存在效率低、煤耗高的问题,论证了国产引进型300 MW机组汽轮机通流改造的必要性。通过改造,高压缸效率达到83.02%,中压缸效率达到91.19%,热耗率为7990kJ/(kW.h),机组发电标煤耗率下降12.4 g/(kW.h),年节约标煤约1.8万t。汽轮机、锅炉、发电机及辅助设备的主要控制参数均在规范要求的范围内,机组经济性和安全性得到了较大提高。There are problems of lower efficiency and higher coal consumption rate in the domestic introduced type 300MW steam turbine of Guangzhou Zhujiang Power Plant.The necessity of flow passage reformation for the 300MW introduced type domestic steam turbine was expounded.After reformation,the efficiency of HP cylinder achieves 83.02%;the efficiency of IP cylinder achieves 91.19%;the heat rate is 7990kJ/(kW·h);the gross standard coal consumption rate of the unit decreases by 12.4g/(kW·h);18 thousands tons of standard coal can be saved in a year.The main control parameters of the steam turbine,the boiler,the generator and auxiliary equipments are all in specified ranges;and the economical efficiency and the safety of the unit are improved significantly.

关 键 词：通流改造 效率 煤耗 经济性 

分 类 号：TK248[动力工程及工程热物理—动力机械及工程]