Circulating fluidized bed boiler cloth wind system of even cloth wind all

The utility model discloses a circulating fluidized bed boiler cloth wind system of even cloth wind all, including the plenum of unilateral air inlet, the plenum top be the air distribution plate, plenum bottom along an air inlet direction height high formation inclination gradually, and the air distribution plate falls into 3 at least regions along the air inlet direction, and crescent along the resistance in air inlet direction each region. The utility model provides a large -scale CFB boiler because bed material thickness granule subregion, the regional fluidization of coarse grain accumulation that cloth wind inequality arouses harmfully reach the furnace water -cooling wall serious problem of transversely wearing and tearing, through the resistance characteristic of different zone on the adjustment air distribution plate, design along the air distribution plate of degree of depth direction resistance characteristic gradation to reach the even mesh of cloth wind.