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.
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
Series no.	5-11 series	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 composition	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

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

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.

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.

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.

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.

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

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.

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

There are a variety of accessories to choose from.

Inquiry

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