G4-73№20-31.5F boiler blower 1. Purpose This series of fans for thermal power generating units supporting 100-200MW. 2, structural features of the fan is in the original production of G4-73-11, Y4-73-11№ (20-29.5) D on Hebei boiler blower, based on 20 years of production and use of the existing problems, G4-73 boiler blower, re-design of new products. The main fan impeller, housing, air inlet, adjust the doors and transmission parts. Impeller: 12 backward by the beveled blade airfoil welded to the middle of the arc cone-shaped front plate and the plate after plate. Through the same draft fan impeller same number. Chassis: chassis is welded steel with ordinary snail shape. Single suction fan casing made of three different forms: №8 ~ 12 chassis made the overall structure, can not be disassembled. №14 ~ 16 made two open chassis. №18 ~ 28 chassis made three open. Of the induced draft fan, snail-shaped plate made thicker to prevent wear proper. Inlet: Convergence, streamlined inlet into the overall structure, bolted to the fan inlet side. Adjust the door: means for adjusting the flow rate of the fan, axial inlet installed in the front. Adjustment range from the 0 ° (fully open) to 90 ° (fully closed) Hebei Teng Hao professional G4-68 blower / advanced technology / equipped / service improvement is provided by Tang Hao Fan Manufacturing Co. Hebei. Hebei Teng Hao professional G4-68 blower / advanced technology / sound-equipped / service Hebei Teng Hao Fan Manufacturing Co. (www.thfengji.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or Tel picture on to obtain the latest information, contact: Lilian Hai.