Gy4-73 Via boiler induced draft fan

Model Number: Gy4-73 Via boiler induced draft fan Brand Name: Tong Tian Key Specifications/Special Features: G4-73 type boiler fan and induced draft fan for boiler Y4-73 is suitable for thermal power plants in 2 ~ 670 t/h steam boiler, induced draft fan system.Without special requirement, G4-73 can be used to mine ventilation and general ventilation.The ventilator transmission medium is air, the highest temperature should not exceed 80 ° C;Induced draft fan for flue gas conveying medium, the highest temperature should not exceed 250 ° C.In front of the induced draft fan, must be equipped with dust removal device, to minimize dust content into the smoke of the fan.According to the general power plant usage efficiency of dust collection shall not be less than 85%.1, including G, Y respectively boiler draft fan and induced draft fan for boiler.2, the negative position of the fan to casing outlet Angle said.3, made single suction fan and induced draft fan, each have № 8 ~ 28, a total of 12 immediately.4, from the motor end face, clockwise rotation is called a right-handed fan impeller, expressed as a "right";Impeller counterclockwise called left cyclone machine, expressed as a "left".5, fan drive mode is D type, adopt elastic coupling transmission.
Fan is mainly composed of impeller and casing, air inlet, regulating station and transmission parts.
1, impeller - from 12 piece backward of wing Angle cutting blade welding arc conical front coil and flat plate after the middle.
The adoption of the wing type blades, to ensure the fan, high efficiency, low noise, high strength.
Impeller by dynamic and static balance correction, the smooth operation.
The same number of tong, induced draft fan impeller structure is the same.
2, chassis - worm form with ordinary steel plate welded together.
Single suction casing of the fan is made in three different forms: № 8 ~ 12 casing into the overall structure, can't open it.
№ 14 ~ 16 cases into two open.
№ 18 ~ 28 cases into three open.
Of induced draft fan, volute board made more appropriate to prevent wear and tear.
3, air inlet, convergence, streamlined inlet into the overall structure, bolted to the fan inlet side.
4, adjust the door - fan to adjust the flow of the device, axial installed in front of the air inlet.
The adjusting range of 0 ° (full open) and 90 ° (full close).
Damper to move the position from the air inlet direction on the right, the right whirlwind one move is pushed by next upgrade from full closed to fully open direction;
Cyclone machine move to left by, are down by a full close to full open direction.
5, transmission group -- transmission part of the main shaft by the high quality steel, this fan adopts rolling bearing.
Bearing box has two forms: № 8 ~ 16 with whole cylinder bearing box;
№ 18 ~ 28 with two independent pillow bearing box.