Huadian Technology ›› 2014, Vol. 36 ›› Issue (5): 72-73.

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Reformation of electric heater for damper sealing air of flue gas desulphurization system

  

  1. (Hongyanchi Power Plant of Huadian Xinjiang Power Generation Corporation Limited, Urumqi 830047, China)
  • Online:2014-05-25 Published:2014-07-15

Abstract: Abstract:In order to prevent dew formation in flue gas, the air temperature in outlet of sealing air fan in FGD system must not be lower than 100℃, and the electric heater must run continuously, which consumes a lot of electric energy. In order to save energy and reduce consumption and reduce the operation cost of FGD system, the electric heater for damper sealing air was reformed in Xinjiang Huadian Hongyanchi Power Plant. The steam source of auxiliary service steam with poor quality was used to heat the sealing air, and the electric heater was replaced. A lot of fund can be saved in year due to this reformation.

Key words: Keywords:flue gas desulphurization (FGD) system, sealing air fan, electric heater for damper sealing air, energysaving reformation, income analysis