Centrifugal Fans for Power Stations/ Industrial Boilers

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Y5-48 Centrifugal Induced Draft Fan for Boilers

Y5-48 Centrifugal Induced Draft Fan for Boilers

Y5-48 Centrifugal Induced Draft Fan for Boilers is designed for 1t/h~20t/h industrial boilers burning various kinds of combustion materials and equipped with smoke-removing and dust-removing devices as long as the air inlet conditions and performance apply. 

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Product Description

Y5-48 Centrifugal Induced Draft Fan for Boilers is designed for 1t/h~20t/h industrial boilers burning various kinds of combustion materials and equipped with smoke-removing and dust-removing devices as long as the air inlet conditions and performance apply. But the maximum temperature cannot exceed 250℃. Dust removal equipment with an efficiency of not less than 85% must be installed before the induced draft fan to reduce the dust content of flue gas entering the fan and increase the life of the fan.

Key advantages:

1. Impellers-Such impellers are composed of 12 pieces of Q345 (16Mn) backward straight blades, and are welded between arc cone wheel cover and flat plate back disc. After dynamic balancing correction and over-speed running test, such impellers enjoy stable and reliable operation, high strength, wear resistance and long service life.

2. Fan casing - It is a volute casing welded with steel plates. Left rotation and right rotation fans with №8 and above can use the same casing type. It has a dust cleaning door, which is easy for workers to remove the dust fallen on impellers and inside blower casing and thus ensures impellers’ balance and aerodynamic performance.

3. Air inlet- With convergent and streamlined integrated design, the air inlet is fixed to the air inlet side of the fan with screws.

4. Air damper-The air damper has petal-design blades and are axially mounted before the air inlet. Fans with No. 4-6.3 have 9 blades for air dampers while blowers with fan No. of above 8 has 11 blades for air dampers. Thanks to the outside driving structure, they enjoy flexible and easy rotation. The adjusting range is from 0° (fully open) to 90° (fully closed). Looking from the side of the air inlet, the handle of the air damper is on the right side. For right rotation blowers, the handle moves from fully closed to fully open by moving from bottom to top. For left rotation blowers, the handle moves from fully closed to fully open by moving from top to bottom. Air damper has to be lubricated carefully to ensure its normal operation. Blowers apply temperature-resistant (260℃) molybdenum disulfide lubrication grease for lubrication, ensuring good lubrication under high temperature operation.

5. Driving system-The driving system consists of main shaft, bearing box and belt pulley, etc. The main shaft is made of quality steel and the bearing is rolling bearing. And the bearing box is water cooling integrated bearing box, so a water pipe has to be added; water consumption varies with ambient temperature and is usually considered as 0.5-1m3/h. Equipped with thermometer and oil level indicator, the bearing box uses 30# motor oil. The oil amount to be added shall be based on the oil level indicator.

Specification:

Item Name

Y5-48 Centrifugal Induced Draft Fan for Boilers

Parts details

Impeller diameter

400~1250

mm

Speed of main shaft

1000~3550

r/min

Pressure range

742~4483

Pa

Flow range

2065~67803

m³/h

Structure

Blade structure

Backward

 

Impeller support

Single support

Drivetrain

C

Assignable

Lubrication

Oil bath lubrication / grease lubrication

Assignable

Bearing cooling

Circulation water cooling/air cooling

 

Circulation oil cooling

 

System
configuration

Motor

Anhui Wannan, Lu’an Jianghuai, Henan Yutong, Jiamusi, Nanyang Explosion Proof, Siemens

 

Impeller, air inlet, blower casing, air damper

Carbon steel

Customizable

Main shaft

High strength carbon structure

Bearing

FAG, SKF, ZWZ, C&U,YLC…

Bearing box

Casting iron

 

Drivetrain

Belt pulley

Assignable

Foundation bolt

Carbon steel

 

Optional
parts

System base frame, Protective screening, Silencer, Inlet& outlet pipeline compensator, Inlet& outlet flange, Air damper, Electric actuator, Shock isolator, Diaphragm coupling, Fluid coupling, Motor rain cover, Temperature sensor, Vibrating sensor, Soft starter, Variable-frequency drive, Special motor, System monitoring &control instrument, Lubrication system and High-level oil tank.

 

Applications:

They are applicable to normal temperature and hot gas, clean and dusty gas, powder materials and tiny granules. They can apply into boilers, dust removal, de-nitration and desulfurization, cement, metallurgy, power generation, gas and material handling, smoke exhausting. It can also be customized according to special industries.

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