PP dust removal fan manufacturer

Selection of dust removal fan equipment

Difference explanation

The main difference between centrifugal fans and axial fans is that:

1. Centrifugal fans change the flow direction of the medium inside the air duct, while axial fans do not change the flow direction of the medium inside the air duct;

2. The former is more complex to install;

3. The former motor is usually connected to the fan through a belt driven rotating wheel, while the latter motor is usually located inside the fan;

4. The former is often installed at the inlet and outlet of air conditioning units, boiler drums, induced draft fans, and so on. The latter is often installed in the air duct or at the front end of the air duct outlet.

In addition, there are inclined flow (mixed flow) fans, which have a higher wind pressure coefficient than axial flow fans and a higher flow coefficient than centrifugal fans. The gap between the axial flow fan and the centrifugal fan has been filled. Simultaneously possessing the characteristics of simple and convenient installation. A mixed flow (or axial thrust) fan combines the characteristics of axial and centrifugal fans, although it looks more like a traditional axial fan. Weld the curved plate-shaped blades onto the conical steel hub. By changing the blade angle in the upstream inlet casing of the impeller, the flow rate can be altered. The casing may have an open inlet, but more commonly, it has a right angled curved shape that allows the motor to be placed outside the pipeline. The excretory shell slowly expands to slow down the velocity of air or gas flow and convert kinetic energy into useful static pressure.

Selection of dust removal fan equipment

Application scenarios

It can be used for ventilation and heat dissipation in places such as metallurgy, chemical industry, light industry, food, pharmaceutical equipment, mechanical equipment, and civil buildings If the casing is removed, it can also be used as a free fan or installed in series at intervals in longer exhaust ducts to increase the air pressure in the ducts.

Characteristics of axial flow fan:

Small axial flow fan: low power consumption, fast heat dissipation, low noise, energy-saving and environmentally friendly. Due to its small size, it has a wide range of applications.

Large axial flow fans have the characteristics of simple structure, stability and reliability, low noise, large air volume, and wide functional selection range

energy-saving retrofit

When the axial flow fan is started, the current of the motor will be 5-6 times higher than the rated value, which not only affects the service life of the motor but also consumes more electricity When designing the system, there will be some margin in the selection of motors. The speed of the motor is fixed, but in actual use, it is sometimes necessary to operate at a lower or higher speed. Therefore, it is very necessary to carry out frequency conversion transformation. The frequency converter can achieve soft start of the motor, achieve energy-saving speed regulation by changing the input voltage frequency of the equipment, and provide protection functions such as overcurrent, overvoltage, and overload for the equipment.