Introduction of FRP centrifugal fan

FRP centrifugal fan is a fan made of glass fiber reinforced plastic resin, also called an anticorrosive centrifugal fan. FRP anticorrosive centrifugal fan can be used in corrosive gas occasions to discharge corrosive acid and alkali waste gas. The gas conveyed is not allowed to contain viscous substances, dust and hard particles less than or equal to 150mg/m3, gas temperature less than or equal to 60 degrees, and relative humidity less than or equal to 100%. FRP fans are widely used in industries such as textile printing and dyeing industry, precision electronics, semiconductor industry, chemical industry, medicine, food, electroplating, electric power, steel industry, metallurgy, electric power environmental protection, sewage treatment, and other industries.

FRP centrifugal fan is mainly composed of impeller, casing, air inlet, casing support frame, belt, pulley, pulley cover, base and relative base, shock absorber, and other parts equipped with motors. After assembly, it is based on AMCA (North American Fluid Association). The vibration of the 210-85 test unit complies with ISO2372 specifications. The maximum air volume of the FRP anticorrosive centrifugal fan can reach 150000CMH. It has high performance, high efficiency, low noise, low vibration, and energy-saving, which can create profits for you and is suitable for a variety of working conditions.

According to different performance parameters, the impeller is composed of 8 to 36 backward-inclined airfoil blades, a curved front cover plate, and a flat backplate. The front cover is increased with annular reinforcing ribs to increase the strength of the impeller, and the air performance is good after the dynamic and static balance test is corrected, the efficiency is high and the operation is stable.

The fan shell and impeller are made of pure glass fiber reinforced plastic, which has high strength, is lightweight, is not easy to age, has good corrosion resistance, low noise, and has anti-static properties.

• The conveyed gas is not allowed to contain viscous substances, contained dust and hard particles≤150mg/m3, gas temperature≤100℃, relative humidity≤100%.
• The position of the air outlet of the fan is 0°～315°, and the interval is 45°. The transmission mode can be designed as belt, shaft, and direct transmission, which should be selected according to the on-site working conditions.
• The casing is uniformly manufactured by the screw pre-injection integrated molding method to ensure the strength of the casing.
• The air inlet is made of a horn shape as a whole and is installed on the side of the fan. The gap between the inlet and the impeller is less than 5mm, which can make the gas enter the impeller smoothly, reduce noise and reduce performance loss. The contact surface between the entrance bell and the housing is flat to reduce leakage.
• The fan is equipped with inspection holes and cleaning holes, which is convenient for daily inspection and cleaning.
• The transmission part is composed of main shaft, bearing seat, rolling bearing, belt pulley or coupling.

Working principle of FRP centrifugal fan

The principle of FRP centrifugal fan. When the motor rotates to drive the fan impeller to rotate, the gas between the blades in the impeller also rotates, and the gas is thrown out under the action of centrifugal force. The gas flow rate increases, so that the gas converts kinetic energy into static pressure energy, then as the fluid is pressurized, the static pressure energy is converted into velocity energy, and the gas is discharged through the exhaust port, and a certain negative pressure is formed in the middle of the impeller. Fill in immediately under the action of atmospheric pressure, and continuously discharge and fill in gas under the continuous rotation of the impeller, so as to achieve the purpose of continuous air blowing. Under the same power, wind pressure and air volume are generally inversely proportional. Under the same power, the wind pressure is high, the air volume will be relatively low, and the wind pressure will be lower if the air volume is large so that the power efficiency of the motor can be fully utilized.

FRP centrifugal fan product features

Energy efficient

• Professional fluid design | Fan aerodynamic performance test
• The design of strong backward curved blades for aerodynamics effectively reduces the flow loss in the impeller.
• The integrated design of the new multi-segment arc volute can effectively reduce the loss of the volute channel.
• The overall fluid structure of the centrifugal fan is optimized to obtain the best impedance ratio of the fan.
• The first-level energy efficiency can reduce the power consumption of enterprises by 10%-20% and reduce production costs.

Long life

• Precision design and manufacturing | Schenck dynamic balance correction technology
• The impeller, volute and parts of FRP centrifugal fan are integrally formed by molds. The strength and rigidity are close to steel, and it is durable.
• Strictly refer to the mechanical design standards to design the power shaft and fixed base, and use the Finite Element Method for strength analysis and verification, which is safe and secure.
• Oil bath type conjoined bearing seat with high centering degree, and the bearing axis is closed for lubrication operation.
• Using German dynamic balance correction technology, the impeller dynamic balance meets the ISO-1940 G2.5 level, and the operation is stable and long-lasting.

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