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Ordinary type axial flow fan working principle type structure

Release Time：2021-07-20

Ordinary axial flow fans can be used for ventilation in ordinary factories, warehouses, offices, residences and other places, as well as air coolers (air coolers), evaporators, condensers, spray drops, etc. There are also mine axial flow fans. Anticorrosion and explosion-proof axial flow fans adopt anti-corrosion data and explosion-proof measures, and match explosion-proof motors, which can be used to escort explosive, volatile and corrosive gases.
It is requested that the gas delivered by the axial flow fan should be free of significant dust, viscosity and fiber substances. The temperature of the direct connection type of the motor should not exceed 40 ℃, the temperature of the leather axial flow fan belt transmission type should not exceed 60 ℃, and the dust amount of the delivered gas should not exceed 150mg/m3. The axial flow fan is mainly composed of impeller, casing, motor and other parts. The bracket is connected with the casing air barrel of the anti-corrosion-type axial flow fan, the casing is made of glass fiber reinforced plastic, and other types of axial flow fans are generally made of steel plate.
Working principle When the impeller rotates, the gas enters the impeller axially from the air inlet, and is pushed by the blades on the impeller to increase the energy of the gas, and then flows into the guide vanes, which deflect the air axial fan flow into axial activity. At the same time, the gas is introduced into the diffuser pipe to further convert the kinetic energy of the gas into pressure energy, and finally into the working pipeline.
Axial fan blades work in a similar way to the wing of an airplane, but the latter acts to lift up the wing and support the weight of the airplane, while axial fans are fixed in position and move the air, and the cross section of an axial fan is generally an airfoil profile.
At present, the local axial flow fan of domestic common mine is mainly composed of front air duct, impeller, rear air duct, motor and carriage.
Front air duct of axial flow fan: several ribs are used to connect the convergent streamlined collector and the streamline body as a whole and fix them with bolts to the main air duct.
Main air duct: the main air duct and the flange group are integrally fixed with the front air duct and the rear air duct by bolts.
Impeller: consists of several airfoil blades and conical wheel shell as a whole, and is directly connected with the motor by key.
Rear air duct: connect the air duct with the motor flange as a whole with several ribs, and fix it with the main air duct with bolts.
Carriage: The carriage is twisted into a flat steel plate and integrated with two rib plates, and is fixed with the main air cylinder and the rear air cylinder.
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.