华电技术 ›› 2011, Vol. 33 ›› Issue (5): 47-50.

• 技术交流 • 上一篇    下一篇

国产引进型300MW汽轮机的通流改造

洪昌少, 段小云   

  1. 广州珠江电厂,广东广州511457
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-05-25 发布日期:2011-05-25

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

HONG Changshao,DUAN Xiaoyun   

  1. Guangzhou Zhujiang Power Plant, Guangzhou 511457, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-05-25 Published:2011-05-25

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7990kJ/(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。

关键词: 通流改造, 效率, 煤耗, 经济性

Abstract: There are problems of lower efficiency and higher coal consumption rate in the domestic introduced type 300MW steam turbine of Guangzhou Zhujiang Power Plant. The necessity of flow passage reformation for the 300MW 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 7990kJ/(kW·h); the gross standard coal consumption rate of the unit decreases by 12.4g/(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. 

Key words: reformation of flow passage, efficiency, coal consumption rate, economical efficiency