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Structural Problem Investigation of Axial Flow Fan

Release Time：2021-07-20

Axial fan is mainly composed of blades, casing, air inlet and motor, mostly direct connection method.
Blades usually have plate type and wing type. Usually, small and medium-sized axial flow fans are mostly plate type blades. The blades have a slight misunderstanding from the root to the blade end. The number of blades is mostly composed of rational pieces.
For large axial flow fans used on industrial cooling towers with large ventilation volume, the blades are of airfoil type, and the blade viewpoint can be adjusted to change the air volume and air pressure of the fan.
Large axial flow fan commonly used belt drive or reducer drive.
Axial flow fans Axial flow fans are mostly used for ventilation or exhaust in workshops or workshops due to large air volume. Large axial flow fans are mostly used for cooling towers and industrial cooling towers in air conditioning projects.
The axial flow fan has a lot of noise when it is working. The low-noise axial flow fan developed by many manufacturers now uses three wide forward-swept blades with an equal-pitch structure, which reduces the separation and vortex when the airflow passes through the blade surface. The secondary loss of the air axial flow fan flow in the fan reduces the aerodynamic noise and ensures the stability of the air flow.
Noise of low axial flow fan Axial flow fan can also be divided into rotary type, fixed type and pipeline type according to its use and application direction. The equipment is convenient. The rotation direction of axial flow fan impeller is facing the air inlet and the impeller is regarded as rolling counterclockwise.
In order to ensure safety, it is not allowed to stop the training and repair during the operation of the fan. After inspection, you should stop the trial operation for five minutes and confirm that there is no unusual sign before starting the machine.
Should immediately stop introspection.
1. It can only be operated in a complete and abnormal environment of the fan. The axial flow fan must ensure that the power supply measures have sufficient capacity and stable voltage. It is strictly prohibited to run without phase. The power supply route must be a public route and should not be used for a long time.
2. The application environment should always be neat, the outside of the fan should be clean, the inlet and outlet should not have sundries, and the dust and other sundries in the fan and pipeline should be eliminated on schedule.
3. Axial flow fans should be stored in a boring environment to prevent mechanical and electrical dampness. When the fans are stored in the open air, they should have offensive steps. During the storage and handling process, the fans should be prevented from bumping to avoid damage.
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.