Huadian Technology ›› 2013, Vol. 35 ›› Issue (1): 38-41.

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Problems occurred during commissioning of 660 MW Heller indirect air cooling unit and treatment measures

DONG Lin1, ZENG Yajie2, MA Yong3   

  1. 1.Northwest Electric Power Construction and Commissioning Institute, Xi’an 710032, China; 2.Hubei Electric Power Construction First Engineering Company, Wuhan 430000, China; 3.Xi’an Thermal Power Research Institute Company Limited, Xi’an 710032, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-01-25 Published:2013-01-25

Abstract: In the commissioning process of the 660MW Heller indirect air cooling thermal power unit, the conditions of air cooling system control logic and the water film of circulating water were deteriorated, and an accident of the rupture membrane breakdown in low pressure cylinder occurred without sufficient operation experiences. The accidents were analyzed. The efficient measures were adopted, and the faults were treated.

Key words: Heller indirect air cooling system, hydraulic turbine, vacuum reducing rapidly, water film, reformation of condenser