Thermal Power Duct Flange System Base Extractor Ventilating Centrifugal 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.

SIMO Blower specializes in manufacturing centrifugal fans with high quality and affordable prices, which are loved by new and old customers.

Product Features

• The centrifugal blower has compact structure, beautiful appearance, good stability and easy installation and maintenance.
• Centrifugal fan runs smoothly: the optimized design of the impeller reduces the axial force to a minimum, and there is an efficient impeller, and the static and dynamic balance correction makes the whole machine run smoothly. Without any damping device, the bearing Amplitude ≤0.04mm.
• Low noise: when the blower is running, there is no mechanical friction, and reasonable blade profile is adopted to minimize the noise. The noise produced by centrifugal blower is high frequency noise, which can be soundproofed as long as there are obstacles, so there is almost no noise outside the blower room.
• Oil-free machinery: blower bearings are lubricated with grease, and the service life of bearings is over three years. The fan does not produce oil and gas during operation. Fans with special requirements use lithium molybdenum disulfide grease to lubricate bearings.
• 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.

Technical data

FAQ

1. What parameters need to be provided when you design the Heat Dissipation Power Plant Blower Fan?

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.

Xinxiang SIMO Blower Co., Ltd. was founded in 2008, located in Xinxiang city, Henan province. SIMO is a professional manufacturer engaged in the research, development, production, sale and service of centrifugal fans, axial fans, blower fan parts. As the senior member of China General Machinery Industry Association, SIMO dedicated to strict quality control and thoughtful customer service, our experienced engineers will ensure full customer satisfaction according to your requirements. In recent years, SIMO Blower invited domestic aerodynamic experts to participate in research and development, drawing on advanced technology, constantly designing new products. The specialized pattern of design, manufacturing, testing, inspection and service is realized at the technical level. In addition, we have obtained C E and I S O 9 0 0 1 certificate. Selling well in all cities and provinces around China, our products are also exported to clients in such countries and regions as Russia, Australia, Pakistan, Thailand, Vietnam, Chile and other countries. SIMO Blower’s products are widely used in power plant, metallurgy, chemical industry, cement and glass production, industrial boiler system, dust removal system and other industrial fields. Whether making fan solution or providing on-site technical support and service, you can talk to our customer service center about your sourcing requirements.