Huadian Technology ›› 2011, Vol. 33 ›› Issue (2): 60-61.

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Application of newtype gland seal in domestic 600MW unit and economic efficiency analysis

FENG Renhai1,YU Qiyun2   

  1. 1.Shiliquan Power Plant, Zaozhuang 277103, China; 2.Huadian Electric Power Research Institute, Hangzhou 310030, China
  • Received:1900-01-01 Revised:1900-01-01 Published:2011-02-25

Abstract: In order to reduce steam leakage loss and increase unit safety and economic efficiency, it is necessary to reform the traditional gland seal using advanced steam sealing technology. The application of the Brandon steam seal on N60016.67/538/538 steam turbine was introduced. The system pipeline was optimized. By comparison of the thermodynamic test result before reformation with that after reformation, it was found that adopting the Brandon steam seal can reduce the heat rate of turbine considerably and enhance the operation economic efficiency of the turbine.

Key words: gland seal, steam leakage loss, heat rate, thermal economic efficiency, energy conservation