Why does the anticorrosive centrifugal fan produce noise?


Everyone is familiar with anti-corrosion centrifugal fans. Faced with different environments, anticorrosive centrifugal fans of different materials work in different environments. For example, in factories, which are more corrosive, FRP anticorrosive centrifugal fans are more suitable, while stainless steel anticorrosive centrifugal fans are relatively more suitable for high temperature environments. Conditions determine which anti-corrosion centrifugal fan to choose.

So why does the anticorrosive centrifugal fan produce noise? Here is an answer for everyone.

Noise caused by blade rotation. When the blade rotates, it will friction or impact with the air. The faster the speed, the higher the frequency of air dissolution and the sharper the noise. This phenomenon becomes more obvious when the width or thickness of the blade increases. The frequency of noise is composed of multiple frequencies, which are all related to the speed of the fan.

When the blade generates vortex, it also generates noise. During the operation of the fan, eddy currents will be generated on the back of the moving wings, which will not only reduce the efficiency of the fan, but also generate noise. In order to reduce this phenomenon, the installation angle of the blade should not be too large, the bending of the blade should be stable, and the sudden change should not be too large.

If it resonates with the air duct shell to generate noise, the joint between the inner surface of the air duct and the fan shell will be rough and uneven, and tearing sound will also be produced, so it should be smooth.

Hebei Shunteng Fan Manufacturing Co., Ltd. is located in Gaobeidian City, Hebei Province. It is a manufacturer engaged in fan manufacturing. The factory produces various types of high, medium and low pressure centrifugal and axial fans, boiler drums, induced draft fans, and low-noise multi-stage centrifugal blowers. Various large-scale induced draft fans, booster fans, dust removal fans, gas booster fans in power plants, steel plants, and coking plants; high-temperature fans in cement plants, raw material mill fans, kiln head exhaust fans, kiln tail exhaust fans, and grate cooler cooling Fans, kiln barrel cooling fans, chute fans; various anti-corrosion fans (titanium, glass fiber reinforced plastic, plastic, rubber lining) in petroleum and chemical plants; material conveying fans and cyclone bag pulse dust collectors for MDF and particleboard plants, Screw conveyor; and high-temperature circulation fans for aging furnaces, soaking furnaces, and tempering furnaces; design, manufacture, and installation of special fans and systems for other industries to meet various special requirements of users; at the same time, they contract large-scale rotor on-site maintenance and on-site dynamic balance, Manufacturing ceramic anti-wear fan rotor and system anti-wear project.

Why are anticorrosive centrifugal fans so popular?

Several methods for regulating air volume of anticorrosive centrifugal fan