It has the advantages of improving both the draft inducing capacity and cooling efficiency of the cooling tower and reducing the emission concentration and manufacturing and operation cost.
With the increasing capacity of the domestic coal-fired large-scale power plants, boiler draft fan capacity increases.
随着国内燃煤发电厂容量的日趋大型化，锅炉引风机的容量也随之增大。
3
Roots draft fan air capacity is calculated and the property curve is drew, and control principle of constant pressure complementary air device is discussed.