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Axial fan how to choose how to work

Release Time：2021-07-20

how to choose axial fan.
1) When there are more than two kinds of axial flow fans to choose from on the axial flow fan selection function chart, priority should be given to the one with higher power and smaller machine number: the one with larger dispatching scale. Of course, it should be compared and the advantages and disadvantages should be weighed.
2) Before selecting axial flow fans, we should know the quality of axial flow fans and products produced by domestic axial flow fans, such as the varieties of axial flow fans produced, the specifications and the special uses of various products, the development and promotion of new products, etc. We should also give full consideration to the plea of environmental protection so as to select the best fans.
3) When selecting axial fans, axial fans should try to avoid using axial fans to work in parallel or series. When not, axial fans of the same type and function should be selected to work together. When selecting series, there should be a certain pipeline combination between the first-stage axial fan and the second-stage axial fan.
4) For the ventilation system with noise reduction request, the axial flow fan with high power and low impeller circumferential speed should be selected first, and it should work at the highest power point. The corresponding noise reduction and vibration reduction methods should be adopted according to the transmission method of noise and oscillation of ventilation system. The vibration reduction method of axial flow fan and motor can generally be selected as the vibration reduction foundation, such as axial flow fan axial flow fan spring shock absorber or rubber shock absorber.
The axial flow fan uses the change of the moving blade assembly angle to shift the function curve of the fan. The function curve and the different moving blade assembly angle and air duct function curve can draw a series of points. If the necessary flow rate and pressure head increase, as long as the moving blade assembly angle is increased, on the contrary, as long as the moving blade assembly angle is reduced, the moving blade of the axial flow fan can be conditioned with high conditioning efficiency, and it can make the conditioned fan in the high efficiency area, and the axial flow fan adopting the moving blade conditioning can also prevent the fan from falling in the unstable working condition area under the small flow condition.
Flexible blade conditioning of axial flow wind makes the layout of axial flow fans complicated, with high conditioning assembly requirements and high production accuracy requirements. Changing the blade assembly angle is carried out through a process moving blade conditioning mechanism, which includes a hydraulic conditioning assembly and transmission mechanism. The piston in the hydraulic cylinder is axially positioned by the shoulder of the shaft sleeve and the piston shaft, and the hydraulic cylinder can move on the piston of the axial flow fan, but the piston cannot occur axial movement, in order to prevent the hydraulic cylinder in the left and right move through the process of piston and hydraulic cylinder clearance revealed, the piston is also equipped with two rows of grooved seal ring, when the impeller torsion, hydraulic cylinder and impeller synchronous torsion, and the piston because of the shroud and the piston shaft torsion also for torsion activities.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong, the hometown of FRP in China. The company has Grade II qualification for fire protection facilities engineering, Grade II qualification for construction mechanical and electrical installation engineering, Grade II qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, and an axial fan invention patent, A fan utility model patent, environmental assessment, safety assessment, three simultaneous and other procedures are complete.