锅炉引风机 meaning in English

boiler induced-draft fan

Application of high - low - high frequency converter in the induced fan of boiler
高低高变频器在锅炉引风机上的应用
Heat are recycled by a lot of suction holes arranged on the side of whole cooling section , hot gas are sucked through the holes , branch pipes , valves , and general pipes and then sent to dryer by suction fan
抽热吸口，设于冷却带，热风从不同的抽风口经由支管、阀门和热风总管,由锅炉引风机抽出送入干燥，使之余热利用。