The multi-stage centrifugal pump uses one line of Plan32; however, the volume of flushing oil is only 20 kilograms, while the pump pressure is 190 kilograms. How do I get it in!
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How to implement scheme 32? Since the volume of flushing oil is only 20 kilograms, the pressure difference compared to the pump’s outlet pressure is too large. This flushing scheme is applicable to both driven and undriven multi-stage centrifugal pumps, for their mechanical seals.
The pressure in the sealed chamber is not the same as the outlet pressure; what is the inlet pressure of the pump?
Does a multi-stage centrifugal pump have anything to do with the outlet pressure? Can both driven and undriven be used?
So the non-drive end sealing chamber weighs around 10 kilograms as well
The pressure in the sealed chamber is not the outlet pressure; it has been throttled. Without knowing the structure, it’s impossible to determine exactly what the pressure will be. The 2 MPa specified by the manufacturer for flushing is definitely sufficient
It has nothing to do with exports. The seal chamber of the multi-stage centrifugal pump is connected to the pump inlet (in the typical design, the drive end is directly connected to the inlet through a gap, while the non-drive end is connected to the inlet through a gap and a balance pipe).
The pressure inside the mechanical seal chamber is reduced; the pressure at both ends is lower than the inlet pressure
Personally, I think a line can be drawn from the pump outlet to 32 for flushing, to serve as the flushing oil; it’s important to pay attention to the quality of the construction work involved. The pressure at the pump outlet is too high – I’m not sure if that’s acceptable. Another option is to use 20 kilograms of flushing oil along with a metering pump to provide the necessary power. My understanding of the 32-seal flushing scheme is to prevent impurities in the medium pumped by the pump from accumulating and approaching the seal chamber, thereby avoiding damage to the rotating and stationary rings. I hope experts can discuss this together
It can be filled in; the pressure is fine, and there are no issues with the inlet or outlet pressures. The outlet seal is located outside the balance disc