How to Ensure Smooth Operation of Roof Axial Fans

How to Ensure Smooth Operation of Roof Axial Fans

Dynamic balance refers to whether the propeller of a roof axial fan wobbles from side to side while rotating. If the rotor is not properly balanced, it will affect the output of the roof axial fan during operation. Do not assume that such issues do not exist. Many people are unaware that the rotor can affect the output of a roof axial fan. In reality, the rotor indirectly affects the propeller, thereby impacting output. Additionally, using this method allows for effective verification of the roof axial fan’s operational status, as it emits distinct sounds corresponding to different wind speeds during operation, making it easy to distinguish between conditions. This section introduces the latest research and development methods for active and passive wear in roof axial fans. To this end, it also covers the latest advancements in wear-resistant technology for solid-phase two-phase flow in roof axial fans. Although the rotor is actually a very small component, it plays a crucial role in the operation of the roof axial fan. In practice, the rotating assembly is very simple, featuring a cylindrical structure whose primary function is to secure the main rotating shaft, thereby enabling the roof axial fan to operate normally. Static balance refers to the alignment of the fan impeller and main shaft when the roof axial fan is at rest. When the rotor is stationary, it is considered to be at rest. Currently, sliding mesh technology is used to calculate roof axial flow fans. By investigating the flow field through the stator, simulating the gas-solid two-phase flow in the fan, and comparing experimental data, the necessary results are obtained. Experimental results indicate that the selected turbulence model better reflects the gas-solid two-phase flow within the roof axial flow fan. Based on the analysis of the two-layer flow theory for gas-solid roof axial fans, two methods to reduce fan wear from the perspective of active wear were proposed, and modifications were made to the roof axial fan casing and impeller. Through several comparative experiments, this paper improved the methods for reducing wear in roof axial fans and analyzed the wear conditions of the fan blades.