Pulse bag dust collector fans can be divided into several types according to the materials used, such as iron shell fans (ordinary fans), fiberglass fans, plastic fans, aluminum fans, stainless steel fans, etc.

Pulse bag dust collector fans can be classified according to the direction of gas flow into centrifugal, axial flow, oblique flow (mixed flow) and cross flow types.

(1) Centrifugal fan. The airflow enters the impeller of the fan axially and mainly flows in the radial direction. This type of fans is made based on the principle of centrifugal action. Products include centrifugal fans, centrifugal blowers and centrifugal compressors.

(2) Axial flow fan. The airflow enters the impeller of the fan axially and flows approximately along the axial direction on the cylindrical surface. Such fans include axial fans, axial blowers and axial compressors.

(3) Rotary fan. The rotor rotates to change the volume of the air chamber to work. Common varieties include Roots blowers and rotary compressors.

Fans are divided into: axial flow fans, centrifugal fans and oblique flow (mixed flow) fans according to the flow direction of the airflow after entering the impeller.

Fans are divided into press-in local fans (hereinafter referred to as press-in fans) and extract-out local fans in which the explosion-proof motor is placed outside or in the flow channel and the explosion-proof motor is placed in the explosion-proof sealed cavity (hereinafter referred to as withdraw-type fans). ).

Fans can also be divided into single-stage, double-stage or multi-stage pressurized fans according to the form of pressurization. For example, 4-72 is a single-stage pressurized fan, and the fan is a multi-stage pressurized fan.

Fans can be divided according to their uses: axial flow fans, mixed flow fans, roof fans, air conditioning fans, etc.

Fans can be divided into low-pressure fans, medium-pressure fans, and high-pressure fans according to pressure.

According to the outlet pressure (pressure boost), it is divided into: ventilator (15,000 Pa), blower (15,000 to 350,000 Pa), and compressor (350,000 Pa).

Pulse bag dust collector fan performance parameters:

The performance parameters of the fan mainly include flow, pressure, power, efficiency and speed. In addition, the size of noise and vibration is also a major fan design indicator. Flow is also called air volume, which is expressed by the volume of gas flowing through the fan per unit time; pressure is also called wind pressure, which refers to the pressure rise value of the gas in the fan, which can be divided into static pressure, dynamic pressure and total pressure; power refers to the fan The input power is the shaft power. The ratio of the fan's effective power to its shaft power is called efficiency. The full pressure efficiency of the fan can reach 90%.

Application scope of pulse bag dust collector:

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 ventilation in air conditioning equipment and household appliances. ; Drying and sorting of grains; inflating and propulsion of wind tunnel wind sources and hovercrafts, etc. The working principle of the fan is basically the same as that of the turbine compressor, except that due to the low gas flow rate and small pressure change, there is generally no need to consider changes in the gas specific volume, that is, the gas is treated as an incompressible fluid.

Precautions for pulse bag dust collector:

The grounding of the fan shell or motor shell must be reliable;

Reverse rotation is prohibited, rated current operation is prohibited, and phase loss operation is prohibited;

It is prohibited to maintain the fan during operation.

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