As we all know, one of the core components of a fan is the fan itself. However, in different facilities, the front plate of the fan may vary in design. Next, we will describe the front plate in detail based on different methods.

In fact, from a conceptual perspective, the selection of this type of fan does not align with the movement trajectory of steam flow. This is because the impeller at the fan’s diameter is much larger than the impeller at the fan’s nominal diameter. So, if this method is used, the efficiency will vary significantly due to heating. Additionally, the vortex in the blade passage cannot be submerged, which reduces the fan’s efficiency. However, due to the simplicity and convenience of manufacturing this design, some centrifugal fans still use this type of front plate.

Secondly, although this structural type is slightly better than the previous one, there are still many issues with the flow passage cross-section between the blade surfaces. You will notice that the flow passage between the blade surfaces still has leaks, which also leads to reduced fan efficiency. From a manufacturing perspective, it is also very simple and convenient.

One of the better methods is to ensure that the vortex in the blade passage moves uniformly or decelerates, thus almost eliminating leakage issues. Therefore, this type of centrifugal fan is highly efficient. However, the downside is that it involves complex structure and higher costs. Nevertheless, for mass-produced centrifugal fans or medium to large centrifugal fans, choosing this front plate is beneficial.

This concludes a detailed introduction to the structure of the centrifugal fan’s front plate. With the information above, we now have a more comprehensive understanding and grasp of the centrifugal fan.