In the overall installation system of oil fume purification, both the industrial oil mist purifier installation system and the cooking oil fume purifier installation system are inseparable from the auxiliary extraction of fans. The fan is an essential part of the installation system of lampblack purification equipment. There are three common fans in the installation system of lampblack purification equipment:
Centrifugal fan: generally used for the installation site of industrial oil mist cleaner, or for the relatively complicated installation of kitchen fume purifier pipeline.
Axial fan: used for kitchen fume purification equipment, usually used for fresh air supply.
Wind cabinet: used for kitchen fume purification equipment on-site, generally used for cooking kitchen fumes.
Fans are machines that rely on input mechanical energy to increase gas pressure and send gas side-by-side. It is a driven fluid machinery. The performance parameters of fan are mainly flow, pressure, power, efficiency and speed. In addition, noise and vibration are also the main design indicators of fans. The flow rate is also known as the air volume. It is expressed in the volume of gas flowing through the unit within a unit time. The pressure, also known as wind pressure, refers to the pressure rising value of the gas in the fan, which is divided into static pressure, dynamic pressure and total pressure. The power is the input power of the fan, that is, the shaft power. The ratio of effective power to shaft power is called efficiency. The total pressure efficiency of the fan can reach 85%-90%. Speed refers to the number of times that an object moves round the circle in unit time. The main structural components of the blower are impeller, housing, air inlet, outlet, bracket, motor and so on.
Centrifugal fans rely on input mechanical energy to increase gas pressure and send gas to side by side. It is a driven fluid machinery. Centrifugal fans can be made into two types: right and left. Viewed from the side of the motor, the impeller rotates clockwise as the right rotating fan, and the counterclockwise rotation is called the left spin.
Axial fan is the same direction as the axis of the blade, that is, the direction of the wind is parallel to the axis.
The wind cabinet includes fan and cabinet, and the fan is installed inside the cabinet. The characteristics of the cabinet are low noise, large air volume and small wind pressure.
The main difference between centrifugal fan and axial fan is that:
1. The centrifugal fan changes the flow direction of the medium in the duct, while the axial flow fan does not change the flow direction of the medium in the duct.
2, centrifugal fan installation is more complicated, axial fan installation is relatively simple, directly connected in series on the wind pipe.
3, the centrifugal fan's motor and fan are usually connected by shaft, and the motor of axial fan is usually in the fan.
4. The centrifugal fan has high wind pressure and is generally used as a draught fan for more complicated fields. Axial fans are often installed in the duct or at the front end of the outlet.
As mentioned above, in addition to the selection of high quality, high purify efficiency cooking fume purifier and purification technology, high efficiency cooking fume purification equipment must be equipped with different power and function fans to ensure effective and effective removal of lampblack.