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5-11 series centrifugal ventilation fan
It is boiler induced draft fan with a total internal pressure efficiency of 90.5% specially designed to be suitable for various coal quality and equipped with a smoke-and-dust removal device (1~20 tons/hour).
This type of fan is currently used in the boiler industry. The air volume of the induced draft fan and the difference in wind pressure are relatively large, in order to adapt to the above situation, considering the practicability of the fan, in addition to the 20-ton boiler ID fan need large power coupling direct transmission, the other uses the triangular belt type transmission.

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Description
It is boiler induced draft fan with a total internal pressure efficiency of 90.5% specially designed to be suitable for various coal quality and equipped with a smoke-and-dust removal device (1~20 tons/hour).
This type of fan is currently used in the boiler industry. The air volume of the induced draft fan and the difference in wind pressure are relatively large, in order to adapt to the above situation, considering the practicability of the fan, in addition to the 20-ton boiler ID fan need large power coupling direct transmission, the other uses the triangular belt type transmission.
This can use different speeds to meet the requirements of various dust collectors in the same tonnage boiler, combined redundant fan series and machine number.
It is used to transport various common gases and hard materials in industrial production, and is suitable for various harsh conditions such as high temperature, wear and corrosion.
application
Centrifugal fan is widely used in the cement industry, building materials industry, environmental protection industry, metallurgical industry, power industry projects such as large-scale dust collector, industrial boilers, ventilation systems, cooling.
 
 
 
 
 
Structure
Drive, we usually divide the fan into:
In the process of choosing the fan, please select the appropriate fan according to the working conditions.
Specification

Series no.

5-11 series

Feature selection

Normal

anti-corrosion

wear-resisting

High temperature

anti-explosion

Remarks

Performance

Impeller diameter

400-3300mm

 

Rotation speed

≤4000rpm

 

Pressure range

684-9887Pa

 

Flow range

590.4-560735㎥/h

 

Structure

Blade type

Backward, Straight, Aerofoil type

 

Impeller support

SWSI(Single Width, Single Inlet), DWDI(Double Width, Double Inlet), Overhung type

 

Lubrication method

Oil bath lubrication, grease lubrication, lubrication oil station

Can be specified

Cooling method

Air cooling, Water cooling, Oil cooling

Can be specified

Driven mode

Direct driven, Coupling driven, Belt driven

Can be specified

Gas composition

Gas temperature

Normal

Customer request

Customer request

≥250℃

Customer request

 

gas characteristic

Clean gas

Corrosive gas

Particulate dust

High temperature gas

Flammable gas, explosive gas

 

System configuration

Motor brand

Chinese famous brand, ABB, Siemens, WEG etc

Can be specified

Impeller

High quality carbon steel

FRP, Stainless steel, Rubber Lining

Wear-resistant layer or wear-resistant liner, ceramic patch

High temperature high quality alloy steel

FRP, Aluminum alloy

Can be specified

Air inlet cone

High quality carbon steel

FRP, Stainless steel, Rubber Lining

High quality carbon steel

High quality carbon steel

High quality carbon steel

Can be specified

Casing

High quality carbon steel

FRP, Stainless steel, Rubber Lining

High quality carbon steel

High quality carbon steel

High quality carbon steel

Can be specified

Air damper

High quality carbon steel

FRP, Stainless steel, Rubber Lining

High quality carbon steel

High quality carbon steel

High quality carbon steel

Can be specified

Main shaft

High strength carbon steel, Alloy structural steel

Can be specified

Bearing

ZWZ, SKF, FAG, NSK

Can be specified

Bearing housing

Cast iron

 

Foundation bolts

GB799-1988

 

Option parts

System base frame, Protective screening, Silencer, Inlet & Outlet flexible connections, Inlet & Outlet counter flange, Air damper, Electric actuator, Shock absorber, Diaphragm coupling, Fluid coupling, Motor rain cover, Temperature sensor, Vibration sensor, Soft starter, Inverter, Special Electrical Motor, System monitoring Instrument.

Features

01

It is capable of outputting a higher outlet pressure while providing more gas flow with lower noise. Stable operation at higher media temperatures.

02

The adjustment door can be used to flexibly adjust the pressure and flow of the fan during operation. It can also be equipped with a variable frequency motor to adjust the pressure and flow of the fan by changing the speed.

03

The bearing cooling method selects a low-cost water-cooling method or an oil-cooling method with better heat dissipation depending on the gas temperature and the conditions of the use environment. For extremely high temperature operating conditions, an electronic cooler can also be added to absolutely protect the reliable operation of the fan system.

04

For the materials of impeller and main shaft, for different working conditions and working speed, we will choose high-strength carbon steel, low-alloy steel, high-temperature alloy steel, high temperature resistant high-strength alloy steel, make the impeller and main shaft to maintain reliable strength at high temperatures.

05

For dust-containing gas, we can meet various working conditions from a small amount of dust to a very large dust content. After special treatment, the surface hardness of the blade can reach HRC60~70, which can extend the life of the impeller by more than 3 times.

06

The bearing housing is reserved for temperature and vibration sensor mounting positions, for convenient to install the fan operation monitoring device.

07

The weld and the main shaft of the impeller are ultrasonic flaw detection to ensure that there are no welding defects and material defects to ensure strength.

08

After the production is completed, all products are tested for running and vibration values for reliable operation.

09

There are a variety of accessories to choose from.
Inquiry
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Air capacity:
Pressure:(Full or static pressure)
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