Tri-section regenerative air preheater is a heat storage heat exchange equipment widely used in large-scale coal-fired power plants.With the increasingly prominent problem of ammonia escape in Denitrification device,the problem of ash plugging caused by ammonium bisulfate(ABS)becomes more and more serious.This paper analyzes the feasibility of using pre gravity heat pipe air preheater to solve the above problems,which shows that this method can effectively alleviate the current prominent problems such as ash plugging and corrosion of the tri-section regenerative air preheater,and provide a useful reference for the safe operation of the current coal-fired power plant.
gravity heat pipeair preheaterammonium bisulfatecoal-fired power plant
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