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.
7-05 series centrifugal ventilation fan Structure
7-05 series centrifugal ventilation 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.
7-05 series centrifugal ventilation fan Features
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.
The induced draft fan is made into a single suction, different impeller diameter from 400mm to 3000mm.
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.
Fan drive mode is V-belt drive, coupling drive, double support type.
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.
7-05 series centrifugal ventilation fan 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. | ||||||||