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Axial fan blades work in several forms

Release Time：2021-07-20

The working mode of axial flow fan blades is similar to that of aircraft wings. However, the latter acts lift upward on the wings and supports the weight of the aircraft, while the axial flow fan fixes the position and moves the air. The cross section of the axial flow fan is generally the wing section. The blades can be fixed in position or can rotate around their longitudinal axis. The angle between the blades and the airflow or the spacing between the blades can not be adjusted or adjusted.
Change the blade angle or spacing is one of the main advantages of axial flow fan, axial flow fan small blade spacing angle produces lower flow, and increase the spacing can produce higher flow, advanced axial flow fan can change the blade spacing in the fan operation (this is quite similar to the helicopter rotor), so as to change the flow accordingly, this is called the blade adjustable (VP) axial flow fan.
The use of axial flow fans is also called partial fans. It is a kind of fan commonly used in industrial and mining enterprises. However, unlike ordinary fans, its motor micro-fan blades are all in a cylinder with a cylindrical shape. It is used for partial ventilation and has a convenient device. The axial flow fan for ventilation has obvious effect and is safe. It can connect the air duct to send the air to the designated area.
According to the characteristics of axial flow fans, the following classifications are made: according to the material classification: steel fans, glass fiber reinforced plastic fans, plastic fans, PP fans, PVC fans, magnesium alloy fans, aluminum fans, stainless steel fans, etc. According to the use classification: explosion-proof fans, anti-corrosion fans, explosion-proof anti-corrosion fans, special axial flow fans and other types.
The single-stage impeller stage, with only the impeller in the stage, is characterized by low pressure and efficiency. Since there is no rear diversion axial flow wind machine, the kinetic energy of one and the fan outlet swirling speed is not utilized and lost in vain.
Impeller rear deflector and.
The ventilator is equipped with a rear deflector at the rear end of the impeller. Its purpose is to partially or even fully use the impeller outlet to rotate around the east to improve the pressure of the ventilator, and the efficiency of the ventilator is also improved accordingly. Its characteristic is that the single-stage total pressure coefficient is large, generally 0.15-0.72, and the efficiency is high. Therefore, this type is widely used in axial fans.
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.