8-12 series centrifugal ventilation fan

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Description

Features

Specification

The 8-12 series strong cooling fan is designed to work in the high efficiency area to achieve energy saving when operating under variable operating conditions.
It is jointly designed by the fan energy-saving group of the Ministry of Machinery Industry and organized by the national fan industry.
It’s a high-performance product promoted by the State Economic Commission and the Ministry of Machinery Industry.
It has the advantages of high efficiency, low noise, wide performance and high efficiency curve.
Applicable to industrial boilers of 5 ~ 35 tons/hour, the similar intake conditions and performance can be adapted, but the maximum temperature should not exceed 250 °C.
The dust removal device with a dust removal efficiency of not less than 85% must be installed before the induced draft fan, in order to reduce the dust content of the flue gas entering the fan, which not only reduces the pollution of the flue gas to the environment, but also reduces the wear of the dust on the fan. It’s conducive to extending the life of the fan.

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.

It is capable of outputting higher gas pressures and providing more gas flow with lower noise.

In the case of common base, the installation is very simple and requires little support from a professional technician.

The motor shaft is elastically connected with the drive shaft, and it is not necessary to constantly tighten the belt or replace the belt, and the maintenance workload is small.

Fans with an impeller diameter of less than 1400 mm operate at a normal temperature fan system, eliminating the need for additional bearing cooling devices, reducing the amount of user investment and maintenance.

When the airflow resistance is increased, the motor load will be automatically reduced and the motor will not be burnt.

It is made of high quality carbon steel, stainless steel or other metal materials are available upon request.

After the production is completed, after running test and vibration value detection, the operation is reliable.

Series no.	8-12 series	Feature selection
		Normal	anti-corrosion	wear-resisting		High temperature		anti-explosion	Remarks
Performance	Impeller diameter	400-3500mm
	Rotation speed	≤3000rpm
	Pressure range	2202-13840Pa
	Flow range	4451-315984㎥/h
Structure	Blade type	Forward
	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.

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