How to Improve the Impeller Efficiency of Guangdong Fans with Cutting Blades

How to Improve the Impeller Efficiency of Guangdong Fans with Cutting Blades

Currently, the domestic Guangdong fan industry is making progress, and the technological standing and advantages of emerging industries are being utilised to address the issue of low coupling efficiency in Guangdong fan absorption. During the coupling process, there is sometimes a phenomenon where time signals and frequency signals become separated. To effectively diagnose the problem of unstable flow in Guangdong fans, this method proposes cutting off the connection between the impeller cover and the fan blades. By utilising high-pressure gas from the pressure side of the Guangdong fan blades to displace the low-speed wake on the suction side, the fluid directly supplying power to the low-speed propeller weakens the impeller, creating a jet-type wake structure. Experimental results indicate that, under design flow and low flow conditions, the boundary layer behind the impeller is reduced, the velocity distribution around the flow path becomes more uniform, and the flow conditions are improved. This enhances the flow field within the propeller and the overall performance of the centrifugal fan. Currently, to optimise design and provide useful references for improving the efficiency of propeller machinery, Guangdong fans—which include compressors, blowers and Guangdong fans—are categorised into centrifugal and axial types based on the direction of airflow. Guangdong fans are vital process equipment for supplying gas power in industrial production, playing a significant role in the national economy and daily life; this market is vast. Through practical research, the impact of spherical particles on the wear resistance of Guangdong fans has been investigated. Spherical particles adhering to the pressure side of the fan blades can effectively enhance the wear resistance of the fan. Furthermore, by altering the distribution of the fan blades, it is possible to control the primary wear areas of the blades. An analysis of the air protection mechanism of the fan, including dust, has been conducted. Currently, existing research methods, numerical simulations and computational approaches regarding the airborne noise of fans are incomplete. The ideal casing boundary is very rigid, and the fan is simplified.