我国小型工业锅炉(包括采暖锅炉)配用的鼓风机容量偏大,既增加了设备投资,又浪费电能,影响锅炉效率,还会造成炉膛正压而倒烟,影响司炉工的劳动条件。在选用鼓风机时,鼓风量一般不会相差太多,主要是风压过大。风压中燃烧装置的通风阻力占主要地位,过去多采用80～100毫米水柱, The capacity of the blower used in our country’s small industrial boilers (including heating boilers) is too large, which not only increases equipment investment, but also istes electric energy, affects boiler efficiency, and causes furnace pressure positive and smoke, affecting worker’s working conditions. In the selection of blowers, the blast volume generally does not differ too much, mainly the wind pressure is too large. Air pressure in the combustion device of the ventilation resistance of the dominant position in the past to use 80-100 mm water column,