Is the critical speed of a blower related to the medium being transported?

2011-06-26View Original

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Is the critical speed of a blower related to the medium being transported?

Reply #22011-06-26

Relevant; because the resistance varies depending on the density of the medium

Reply #32011-06-26

Agree with the view from the second floor; moreover, there are differences among each unit, so let’s draw conclusions based on practice!

Reply #42011-07-03

The critical speed is formed during the equipment’s own manufacturing process and does not change depending on the medium being transported. The critical speed of the same machine model can vary. Generally, the critical speed is controlled within a range rather than at a single value. As the equipment ages through use, its critical speed may change; therefore, it is necessary to measure, based on experience, the speed at which the maximum vibration level falls within the critical range during startup – and that speed is the critical speed

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