How to determine the left and right rotation of a centrifugal fan? If the impeller in the fan rotates clockwise, it is a right-handed fan; conversely, it is a left-handed fan.
Why can adjusting the speed of a centrifugal fan save energy? This is a conclusion drawn by centrifugal fan manufacturers through years of practical experience. The main reason is that, generally speaking, centrifugal fans adjust the flow rate according to the load of the main machine. Therefore, when throttling adjustment is carried out, the fan can operate efficiently, so the energy savings are quite considerable. Thus, this conclusion is reached.
How to represent a centrifugal fan in a process flow diagram? The representation of a centrifugal fan in a process flow diagram has no unified standard because there are no relevant explicit regulations, and there can be various forms and methods. However, in the fan industry, there are still some requirements in this regard, such as: Requirement 1: In standard drawings, the symbol legend should always be indicated to distinguish it from other drawings. Requirement 2: For the complete process drawings next to the centrifugal fan, the corresponding parameters of the fan should be indicated, including specifications and models, power, air volume, air pressure, etc., which are all essential.
