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7-05 series centrifugal ventilation fan
At present, there are many series of boilers, and the situation of burning coal quality is quite different, after installing dust removal equipment and waste heat utilization equipment, insufficient pumping force affects normal operation.

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Description
At present, there are many series of boilers, and the situation of burning coal quality is quite different, after installing dust removal equipment and waste heat utilization equipment, insufficient pumping force affects normal operation.
In order to overcome the insufficient pumping force due to the above reasons, the furnace has a positive pressure, which affects the combustion and normal operation of the boiler.
Therefore, various types of boiler induced draft fans have been designed and manufactured for the design and manufacture of air volume, wind pressure and boiler matching efficiency. Provide each user to choose an application.
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.

7-05 series

Feature selection

Normal

anti-corrosion

wear-resisting

High temperature

anti-explosion

Remarks

Performance

Impeller diameter

400-3000mm

 

Rotation speed

≤3000rpm

 

Pressure range

3160-16540Pa

 

Flow range

2473-484756㎥/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

The fan pressure is high, therefore it is especially suitable for 1-20t/h industrial boilers, which equipped with spiral pipes and multi-tube dust collector.

02

The induced draft fan is made into a single suction, different impeller diameter from 400mm to 3000mm.

03

The position of the air outlet of the fan is expressed by the angle of the air outlet of the casing."Left" and "Right" can be made into different angles.

04

Fan drive mode is V-belt drive, coupling drive, double support type.

05

The fan has high efficiency, high total pressure, low noise, flat performance curve, wide economical use area, and adopts backward plate type blades. The efficiency of the fan at the best working point is 86.5%, and the noise index( than A sound Level) is Ls=11.5dB.
Inquiry
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Pressure:(Full or static pressure)
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