Dust-deposition-preventing long-shaft fan impeller with wedge-shaped blade

Abstract

The invention discloses a dust-deposition-preventing long-shaft fan impeller with wedge-shaped blades. The dust-deposition-preventing long-shaft fan impeller comprises a long shaft and blades, wherein the blades are in the shape of a long strip; the sections of the blades are in the shape of a centrosymmetric hollow wedge in axial and radial directions of the impeller; the two ends of each blade are inserted into end plates; and the long shaft is connected and fixed with the end plates through spokes. An end plate is also arranged on the middle part of the long shaft, and the blades penetrate through the end plate, so that the firmness is enhanced. According to the dust-deposition-preventing long-shaft fan impeller, the blades are designed into a centrosymmetric structure in axial and radial directions, and therefore, when the blades rotate at a high speed, the surfaces have strong surface-centrifuging self-cleaning effect under the action of strong centrifugal force, so that dust is quickly centrifuged and separated, and cannot be adhered, and dynamic and static balance of the impeller is not affected; and by virtue of the symmetrical structure of the hollow wedge, the blades have very high strength resisting to wind-pressure bending and centrifugal bending, so that materials are saved and equipment weight is reduced, and stable and reliable use is guaranteed. The long-blade fan impeller is uniform in air blowing, gentle in wind power and relatively small in air pressure, and is applicable to an air conditioner and other occasions which need air circulation.

Description

technical field [0001] The invention relates to a fan impeller, in particular to a dust-accumulation long-axis fan impeller with wedge-shaped blades. Background technique [0002] The fan is a power device for gas transportation and has a wide range of applications. However, the airflow in most applications contains a certain amount of dust. When the fan is working, when the airflow passes through the high-speed rotating fan impeller, due to centrifugal separation, the dust particles will be separated. The airflow phase deposits and adheres to the fan impeller. [0003] Since the speed of the fan impeller is generally high, as long as there is a small amount of dust in the airflow, more dust will accumulate after a long time of work, thereby changing the balance of the fan impeller rotation. If the fan impeller has no self-cleaning effect on the dust and is not cleaned in time, it will It will accumulate and gradually change the static and dynamic balance of the fan impelle...

AI Technical Summary

Problems solved by technology

Once some hardened dust is shaken off by vibration, it will immediately leave the dynamic rotation balance of the fan, and then generate strong vibration, which may cause serious personnel and equipment safety accidents

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