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Axial flow fan blade conditioning principle selection skills

Release Time：2021-07-20

The moving blade conditioning of the axial flow fan has high conditioning power, and can make the conditioned fan operate in a high power area. The axial flow blower with moving blade conditioning can also prevent it from landing in an unstable working area under small flow conditions. The moving blade conditioning of the axial flow fan makes the fan structure messy, requires higher conditioning equipment, and requires higher production accuracy.
Changing the angle of the blade equipment is performed through the blade conditioning organization, which includes hydraulic conditioning equipment and transmission organization. The piston in the hydraulic cylinder is axially positioned by the shaft sleeve and the shoulder of the piston shaft. The hydraulic cylinder of the axial flow fan can move left and right on the piston, but the piston cannot move axially. In order to prevent the hydraulic cylinder from leaking through the piston and the open space of the hydraulic cylinder when moving left and right, there are also two rows of grooved sealing rings on the piston. When the impeller rotates, the hydraulic cylinder and the impeller rotate synchronously, and the piston also rotates because of the rotation of the shield and the piston shaft, so the axial flow fan is stable when operating under certain working conditions., There is no relative movement between the piston and the hydraulic cylinder.
The other end of the piston shaft is equipped with a control shaft. When the impeller rotates, the control shaft stops moving, but when the left axial flow axial flow fan of the hydraulic cylinder moves to the right, it will drive the control shaft to move together. The number one part of the control stops and does not rotate.
The blade is mounted on the outer end of the petiole. Each blade is fixed on the petiole with 6 bolts. The petiole is supported by the petiole bearing. The balance block is installed at a regular point of view with the blade. The displacement of the two blocks is different. The balance block is used to balance the centrifugal force and make the blade adjustable in operation.
When selecting the right axial flow fan, we need to consider the application address and occasion of the internship.
It is concluded that the application power of axial flow fan is generally better than that of axial flow fan. Under the condition of setting parameters, it can meet the requirements of low noise and compact construction standard, so that the airflow can be reduced to a minimum through the planned flow channel.
After purchasing the axial flow fan, you should check the recommended fan when using the axial flow fan for the first time, check whether the fan blade steering is the same as the rotating identification symbol, check whether the trial operation is continuous after 10 to 30 minutes, check whether the blade is loose, check whether the vibration damping seat and the connecting bolt of the root are loose, and check whether all are qualified before formal suggestions can be put into operation.
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.