Centrifugal Fan
When the centrifugal fan is working, the power machine (mainly an electric motor) drives the impeller to rotate in the volute casing, and air is sucked in from the center of the impeller through the suction port. Due to the dynamic effect of the blades on the gas, the pressure and speed of the gas are increased, and it is thrown towards the casing along the blade path under the action of centrifugal force, and is discharged from the exhaust port. Because the flow of gas in the impeller is mainly in the radial plane, it is also called a radial fan. With the advancement and development of the times, people are no longer satisfied with the pressure and air volume requirements of centrifugal air pumps, and the noise of centrifugal air pumps has increasingly become a headache within the factory. Therefore, Japan first introduced a fully enclosed flow-measuring fan, which is today's high-pressure fan (vortex vacuum pump). With its compact appearance and low noise, this fan for the first time met the society's demand for high-pressure fans at that time. Later, this fan was upgraded successively and developed into single-stage, double-stage, and three-stage impeller high-pressure fans, and the maximum pressure of the high-pressure fan was once refreshed to 230kpa, but this was only used as the ultimate pressure of the fan. The more influential well-known foreign brands include: NASH-ELMO, FPZ, ENERGY, BUSCH, TEAKOR, FUJI, etc. In 1988, blower technology was introduced to Siemens of Germany, creating the now internationally renowned high-pressure blower. The high-pressure blower soon set off an upsurge in fan environmental protection in China. With its abundant funds and technology, reasonable product prices, and perfect after-sales service system, it has won the It has won the trust of many domestic and foreign enterprises and has become the designated supplies for many large enterprises. The application of high-pressure fans has become popular. It is widely used in industry and agriculture, covering infrastructure, environmental protection industries, automobile industry, electroplating industry, aquaculture industry, and industrial dust collection.
Product introduction
The centrifugal fan is a machine that relies on input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draft induction in boilers and industrial furnaces; cooling and cooling in air conditioning equipment and household appliances. Ventilation; grain drying and selection; wind tunnel wind source and hovercraft inflation and propulsion, etc.
Mechanical characteristics
The centrifugal fan is essentially a variable flow and constant pressure device. When the rotational speed is constant, the theoretical pressure-flow curve of the centrifugal fan should be a straight line. Due to internal losses, the actual characteristic curve is curved. The pressure generated in a centrifugal fan is greatly affected by changes in inlet air temperature or density. For a given intake air volume, the pressure generated is the lowest at the highest intake air temperature (lowest air density). For a given pressure and flow characteristic curve, there is a power and flow characteristic curve. When the blower runs at a constant speed When, for a given flow rate, the required power increases as the inlet air temperature decreases.
Application scope
As an important supporting equipment in industry, centrifugal fans will be more widely used in fields such as electric power, cement, petrochemical industry, coal, mining and environmental protection.
After-sales service commitment:
1. When the supplier delivers the goods, he shall provide the buyer with the equipment instruction manual (electrical schematic diagram, circuit diagram, etc.) as well as the installation and maintenance instructions and packing list.
2. The equipment has a one-year warranty and lifetime maintenance.
3. During the warranty period, for equipment failures caused by non-human factors, the seller will respond within 4 hours when the equipment fails and provide technical support to solve the problem as quickly as possible. During the warranty period, we are responsible for providing damaged parts and accessories free of charge. After the warranty period, only the cost of accessories will be charged.
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If you have any questions, please contact us and I will contact you as soon as possible.
Carry Zhang
Shandong Liyang Intelligent Equipment Co., Ltd
M.P. & WhatsApp: 0086-18653186367
Email: marketing@liyangzn.com
Address: Shop 2-203, Dayou Center, Shuangshan Street, Zhangqiu District, Jinan City 250200, Shandong, China
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