1~75t/h GG/GY Centrifugal Fan and Induced Draft Fan for Industrial Boilers

1. Impeller — Impellers of GG/GY Series Induced Draft Fan are made of Q345 (16Mn) steel plates. The arc conical wheel cover has 12-28 blades, which ensures the ideal aerodynamic performance of the fan and high efficiency of high pressure fans; after passing static and dynamic balance correction and overspeed test, impellers enjoy stable and reliable operation.

2. Air inlet –Being made into a convergent streamlined integrated structure, the air inlet is fixed to the side plate or cover plate flange of the fan casing with screws. And the screw connecting place is sealed by asbestos cords for air sealing.

4. Air damper- This series of fans are equipped with air dampers. Based on users’ requirements, air dampers can be equipped for small centrifugal ventilations fans to adjust the air inlet direction and pipe performance to ensure blowers’ high-efficiency running. The air damper can be adjusted from fully closed to fully closed based on the signs and positioning plate.

5. Driving mode - This series of fans adopts bearing box D driving mode. The bearing box should use the oil for L-AN46 full loss system for lubrication. The oil amount should be based on oil indicator. The bearing box contains no oil when leaving factory; molybdenum disulfide high temperature lubrication oil has to be added into the bearing box before installation and running of induced draft fans. Lubrication oil has to be replaced every 3 to 5 months. If the smoke temperature “t” is no less than 180 °C, a water cooling bearing box can be added to ensure blowers’ smooth operation and service life.