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Recently I found a picture of an impeller in the machinery group, it's OH2. Their impellers do not have balance holes and no balance blades. Is it possible that other people's technology can already balance the axial force through the area of the front and rear covers? Awesome my brother
I haven't seen it either, so I'm sending it here to give you some insights.
For mixed-flow pumps, the axial force of large flow rate and small head can be solved with little reliance on bearings! There is no axial flow pump!
The working principle is different: the axial flow pump relies on the axial thrust generated by the rotation of the impeller to pump the medium； The rotation of the mixed flow pump impeller generates both inertial centrifugal force and axial thrust to pump the medium. I don’t know if it has anything to do with the working principle.
What you don't understand is the real technology...
The flow channel is wide and the work time is short. The medium passing through the flow channel is always in a turbulent flow state from entry to exit. The area difference between the front and rear cover plates is small and the pressure is low. Also, according to the principle of mutual conversion between speed and pressure, the speed of liquid in the flow channel is high, so the pressure is small! That’s a bit confusing! You can understand it so deeply! I'll wait for real experts to reply, and I'll study hard too. * Down!
Just because you haven't seen it doesn't mean that you don't have this technology and it doesn't meet the standards.* * Can you approve production?