华电技术 ›› 2012, Vol. 34 ›› Issue (2): 1-4.

• 专题综述 •    下一篇

600MW汽轮机汽封间隙调整优化分析

杜进韡,居强,张庆国   

  1. 华电国际邹县发电厂,山东邹城273522
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-02-25 发布日期:2012-02-25

Analysis on optimization of steam sealing gap adjustment for 600MW steam turbine

DU Jinwei,JU Qiang,ZHANG Qingguo   

  1. Huadian International Zouxian Power Plant, Zoucheng 273522, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-02-25 Published:2012-02-25

摘要:

汽封间隙是影响汽轮机热效率和热经济性的主要因素,其调整方法尤为关键。论述了华电国际邹县发电厂亚临界600MW汽轮机半实缸汽封间隙调整的总体流程,分析了影响

半实缸汽封调整精度的各种因素,介绍了全实缸优化调整汽封间隙的新工艺。通过试验,600MW汽轮机汽封间隙优化调整取得了满意的效果,该优化调整方案可为同行提供借鉴和

参考。

关键词: 汽封间隙, 半实缸, 全实缸, 优化调整

Abstract:

The steam sealing gap is a major factor influencing on the thermal efficiency and thermal economical performance of steam turbine, and its

adjustment method is especially important. The total process of semiinstalled cylinder steam sealing gap adjustment for the subcritical 600MW steam

turbine of Huadian International Zouxian Power Plant was expounded. Various factors influencing on the accuracy of semiinstalled cylinder steam sealing gap

adjustment were analyzed. The new technology of fullyinstalled cylinder steam sealing gap optimal adjustment was introduced. Based on experiment, a

satisfactory result of the 600MW turbine steam sealing gap optimal adjustment was obtained. The optimal adjustment scheme can provide a reference for

persons of the same profession.

Key words: steam sealing gap, semi-installed cylinder, fully-installed cylinder, optimal adjustment