Large Capacity Flue Gas Efficient Energy-Saving Snail Blower Fan

Introduction Of Centrifugal Fan

Centrifugal fan is a kind of machinery that relies on input mechanical energy to increase gas pressure and discharge gas.

The basic composition of a centrifugal fan: a rotating impeller and a volute casing. The function of the rotating impeller is to obtain energy from the air; the function of the volute is to collect air and effectively convert the dynamic pressure of the air into static pressure.

When the centrifugal fan is energized and rotated, it drives the impeller to rotate, driving the gas to continuously flow in and out, and generate air volume and voltage. With the shape of the impeller blades, the air volume and pressure generated by the centrifugal fan are also different.

All impellers are produced in moulds and are verified by a precision dynamic balance machine at high speed. They have the advantages of small size, high efficiency, large air volume, low vibration, low noise, superior performance, and convenient installation and debugging.

Technical data

Product Features

• The impeller of centrifugal fan adopts special compound line shape, which reduces internal leakage and improves volumetric efficiency.
• Easy to adjust: the regulating door on the inlet side adjusts the flow rate and the regulating door on the outlet side adjusts the pressure
• Drive mode: usually a two-pole asynchronous motor, but also a four-pole motor drive. According to different user power grids, motors of different voltages can be used.
• Sealing: Labyrinth seals are installed on the impeller of each stage except the inlet ring, the interstage and both ends of the casing to prevent gas leakage.
• Cooling: The bearing seat of the centrifugal fan has two structures: air-cooled and water-cooled. Due to the gradual compression of the gas by the impeller, the temperature of the exhaust casing is much higher than the intake casing. There is an air-cooled or water-cooled device in the exhaust bearing seat to extend the service life of the bearing.
• Transmission modes of centrifugal fan: coupling transmission, belt transmission and gearbox transmission. According to different equipment and processes, different transmission modes are selected.
• Centrifugal fans are divided into different types of fan blades: forward centrifugal fans and backward centrifugal fans.

Forward fan: generally a blower, the impeller hub is parallel to the edge of the impeller, and the exit angle of the impeller is greater than 90 degrees.

Backward inclined fan: Generally, it is an induced draft fan. The impeller hub and the impeller are not parallel, and the exit angle of the impeller is less than 90 degrees.

FAQ

1. What parameters need to be provided when you design the industrial centrifugal fans?

Answers: Air flow, total pressure or static pressure, inlet temperature, local voltage and frequency, Altitude etc.

If there is flammable and explosive gas, or big dust loading in the medium, please also inform the designer.

2. How about your company’s pre-sales service and after-sales service?

Answers: Before our cooperation, we have the professional technical team to help you make the technical solution according to your working condition, to make sure the centrifugal fan efficiency operation.

After sales service, we will offer 12 months’ repairing service, and provide lifelong follow-up services. Besides, our engineers are available for going abroad to offer the repairing service.

3. Does your company have qualifications?

Answers: SIMO Blower has obtained ISO 9001-2008, CE, BV certifications and so on.