7-09 series centrifugal ventilation fan

The 7-09 series medium pressure centrifugal fan has moderate pressure and large flow, belongs to the low noise series fan and has stable performance.
It’s suitable for conveying normal temperature or high temperature non-flammable gas (normal air, high temperature gas, corrosive gas, dusty gas), and conveying granule/powder/chip/fiber material.
It’s a widely used medium-pressure heavy-duty centrifugal fan, which is commonly used in industrial systems such as boilers, dust collectors, desulfurization systems, cement, chemicals, metallurgy, electric power, and gas and material transportation. It can also be used for general ventilation.

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.	7-09 series	Feature selection
		Normal	anti-corrosion	wear-resisting		High temperature		anti-explosion	Remarks
Performance	Impeller diameter	1500-3500mm
	Rotation speed	≤1450rpm
	Pressure range	4217-15694Pa
	Flow range	4293-773605㎥/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

It can output higher outlet pressure and provide more gas flow with lower noise. Ability to work stably at higher media temperatures.

Customized design according to customer's performance requirements, and optimized by CFD technology, the energy consumption is lower than similar models.

The airflow channel and the impeller have been optimized several times, which is more efficient and energy-saving than ordinary large-flow fans.

For the material of impeller and main shaft, we will choose high-strength carbon steel, low-alloy steel, high-temperature alloy steel, high temperature resistant high-strength alloy steel for different working conditions temperature and working speed, so that the impeller and main shaft can still maintain a reliable strength at high temperature.

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 impeller is subjected to high standard dynamic balance correction to ensure stable operation of the fan.

The fan system adopts a detachable design, which greatly reduces the transportation cost of customers.

Each part has an installation number and can be successfully assembled under the guidance of the installation manual.

Provide on-site installation guidance services.

Inquiry

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