How to choose the power of the ventilation motor
1) When you find that there are more than two types of axial fans to choose from on the ventilation motor selection performance chart, you should give priority to choosing the one with higher efficiency and smaller size: the one with larger adjustment range, of course, should be compared , Weigh the pros and cons to decide.
2) Before choosing an axial fan, you should understand the production and product quality of the domestic axial fan, such as the types and specifications of the axial fan produced, the special purpose of various products, the development and promotion of new products, etc. Full consideration should also be given to the requirements of environmental protection in order to choose the best choice of fans.
3) When choosing a fan, try to avoid using axial fans to work in parallel or in series. When it is unavoidable, the axial fans of the same model and performance should be selected to work together. When using series connection, there should be a certain pipeline connection between the axial flow fan and the secondary axial flow fan.
4) For ventilation systems with noise reduction requirements, an axial fan with high efficiency and low impeller circumferential speed should be selected first, and it should be operated at a high point; it should also be adopted according to the propagation mode of noise and vibration generated by the ventilation system. Corresponding noise reduction and vibration reduction measures. Vibration reduction measures for axial fans and motors generally can be based on vibration reduction, such as spring shock absorbers or rubber shock absorbers.
5) When choosing a centrifugal axial flow fan, when the motor power is less than or equal to 75KW, it is not necessary to install a valve only for starting. When a centrifugal boiler induced draft fan is selected for discharging high temperature flue gas or air, a valve for starting should be installed to prevent overload during cold operation.
6) According to the different physical and chemical properties of the gas conveyed by the axial flow fan, choose the axial flow fan for different purposes. If transporting flammable gas, an explosion-proof axial flow fan should be selected; for dust exhaust or for transporting pulverized coal, dust exhaust or pulverized coal axial flow fan should be selected; for transporting corrosive gas, an anticorrosive axial flow fan should be selected; at high temperatures The high-temperature axial flow fan should be selected when working or transporting high-temperature gas in the occasion.
Post time: Nov-03-2021