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The fan is to rely on the input of mechanical energy, to increase the gas pressure of the gas feed side of the machinery. FRP centrifugal fan is made of glass fiber reinforced plastic material made of fans, also known as anticorrosion centrifugal fan.
With strong corrosion resistance, long life, stable operation and other characteristics.
General FRP centrifugal fan can be used in the case of corrosive gases, emission of corrosive gases. It is not allowed to transport gas with viscous material, contained in dust and hard particles are less than or equal to 150mg / m3, the gas temperature is less than or equal to 60 degrees, the relative humidity is less than or equal to 100%. Not suitable for high temperature place FRP centrifugal fan.
Widely used in the case of containing corrosive gas chemical, electroplating, oxidation, power plants, laboratories, circuit boards, environmental protection equipment.
Centrifugal fan and turbine compressor works basically the same, but due to the low gas flow rate, pressure changes little, generally do not need to consider changes in the specific volume of gas that the gas as incompressible fluid handling.
Centrifugal fan can be made righthanded and lefthanded two types. To face from the motor side, the impeller rotates clockwise rotation of the fan called right, rotate counterclockwise, called L.
Centrifugal fan is based on the principle of potential energy is converted to kinetic energy, the use of highspeed rotation of the impeller of the gas to accelerate, then slow down, change the flow, so that the kinetic energy is converted into potential energy (pressure). In the singlestage centrifugal fan, the gas enters from the axial impeller, changing the gas flow through a radial impeller, and then into the diffuser. In the diffuser, the gas flow direction changes caused by the deceleration, the decelerating effect of the kinetic energy is converted into pressure energy. Increased pressure occurs mainly in impeller, followed by the process occurs in the diffuser. In a multistage centrifugal fan, the air flow into the next with a reflux allows the impeller to produce higher pressures.
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