Rotary vane blower outlet pressure
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What are the reasons for large fluctuations in the outlet pressure of rotary vane blowers, and what are the ways to stabilize the pressure during production?
This post was last edited by 654262293 on 2011-9-5 10:19. Under normal conditions of the fan, it is related to the inlet pressure of the Roots blower; by stabilizing the inlet pressure, the outlet pressure also remains stable.
Reply to 2# 654262293: A clogged outlet pipe can also cause significant fluctuations in outlet pressure; especially when liquid accumulates in the outlet pipe, it may even lead to the fan tripping due to overcurrent. There is also a fault with the outlet check valve
Reply to 3# *nlian*n: What caused the blockage in the export pipeline? If blocking is to be done, it should be the impeller at the bottom of the fan first – why block the pipelines? Where does the liquid at the fan outlet come from? Is it caused by the medium of the fan? Won’t all that liquid cause liquid hammer in the fan?
Reply to 4# 654262293: 1. Condensate accumulates when a U-bend is installed on the fan outlet pipeline. 2. There are tank-type devices in the fan outlet pipeline that require level control; if the liquid level is too high, it can flood the outlet pipe. 3. If liquid enters the casing, a small amount will be blown out by the airflow, but if the amount is large, the fan would have already broken.
Fluctuations in the pressure at the outlet of the gas holder lead to fluctuations in the pressure at the inlet of the Roots pump, which in turn cause fluctuations in the outlet pressure; or fluctuations in the pressure difference within the desulfurization system can result in fluctuations in the outlet pressure of the Roots pump. There are thus many possible causes for such pressure difference fluctuations. . . .
If it’s a regular fluctuation rather than random shaking, then one of the fan blades might be damaged, or the outlet safety valve might be triggering repeatedly, as its tripping pressure is very low
First, fluctuations in the outlet pressure of the Roots blower are caused by changes in the compressor capacity； Second, fluctuations in the amount of desulfurization liquid cause fluctuations in outlet pressure ； Third, fluctuations in the water volume of the cooling and cleaning tower cause pressure fluctuations.
The stable operation of the desulfurization system is an important factor in ensuring stable outlet pressure of the Roots pump. It is crucial to properly control the liquid levels in the cooling tower and the desulfurization tower.