Centrifugal fans are driven fluid machines that are widely used in factories, mines, and tunnels. Due to the specific operating environments, the stability of equipment performance is crucial. Therefore, certain design requirements must be followed. Let’s take a look:
Foundation Construction:
The foundation of a centrifugal fan is generally built within a solid wall. Since the fan’s foundation is raised above the ground, the part protruding from the ground should be coated with cement and red soil to prevent damage to the concrete from lubricating oil, which could affect the stability of the entire foundation and compromise the balance of the equipment. After completing the foundation, the fan should be placed on it and calibrated with a spirit level. If there are any uneven areas, a shim can be added under the base, but it must be fully filled to prevent direct contact between the base and the foundation.
Stability and Component Assembly:
After determining the stability level of the centrifugal fan’s foundation, the anchor bolts of the fan should be tightened first, followed by tightening the bolts of the inlet and outlet ducts. Additionally, care should be taken to prevent the weight load from the ducts from being borne by the fan, which could cause deformation of the fan housing and lead to scratches. The components should be parallel to the axis and close to the outer circumference. The fan mainly consists of two layers: the first layer provides structural support with many holes, and the second layer is made of soundproof material.
Front-end Design and Additional Components:
At the front end of the fan, a metal wire mesh is installed at the front of the moving impeller. The mesh is directly embedded into the fan housing. A collection bucket is placed beneath the mesh to gather various materials. Of course, centrifugal fans also include other components such as the diffuser ring, moving impeller, motor, and other devices. To ensure proper operation, the design should be standardized and meet all requirements. Additionally, regular maintenance should be performed during normal use to reduce the possibility of equipment failure.