RESEARCH ON THE PRESSURE LOSS OF HOT BLAST VALVE WITH MINIMUM COOLING
Hot blast valve is used in hot stove system widely and has become an important and indispensable equipment of blast furnace.In this paper,the relationship between pressure and flow volume is studied by pressure experiment and theoretical calculation.The resistant coefficient can be reduced significantly by improving the water channel of a certain Steel DN1500 valve plate.In the same flow volume conditions,the pressure loss for improved valve is 15％lower than original structure.Energy saving purpose is achieved.Meanwhile,the experiment shows that the cooling water velocity is determined by the pressure loss and water channel diameter.The larger pressure loss is,the higher water velocity is.The water velocity is not relevant directly with the inlet pressure.When the pressure is constant,decreasing the cross section of water channel within a certain range can increase the water velocity.However,the water velocity will decrease if the cross section of water channel is too small.
hot air valveenergy savingresistance lossspeed of water
万方数据
维普
