The actual requirements and transmission mode of the clean room centrifugal fan

- Jan 09, 2019 -

The clean room centrifugal fan is a variable flow constant pressure device when it is used. When the speed is constant, the pressure-flow theoretical curve of the equipment should be a straight line. The actual characteristic curve is curved due to internal loss. The pressure generated in the centrifugal fan is greatly affected by changes in intake air temperature or density. For a given intake air quantity, the highest intake air temperature (the lowest air density) produces the lowest pressure. For a given pressure and flow characteristic curve, there is a power and flow characteristic curve. When the blower runs at a constant speed At a given flow rate, the required power increases as the intake air temperature decreases.

Due to the different working conditions and production requirements, the clean room centrifugal wind machine will be considered to some extent because it needs to be comprehensively considered according to its actual conditions when selecting the equipment. To some extent, in order to meet the actual requirements of its users, it is centrifuged. When the wind turbine equipment is structurally designed, it must also be designed from the user's point of view. The first is to rationally select the blade as a structural form.

The clean room centrifugal fan needs to select a suitable transmission mode to a certain extent, which not only needs to consider the requirements of the centrifugal fan equipment rotation speed, but also consider the working environment of the fan equipment. In the case of high temperature, dusty working environment conditions, the selected transmission mode must also consider the protection and cooling of the motor and bearing. Then there is the choice of the outer dimensions of the volute. In general, the outer dimensions of the volute should be as small as possible.