How to correctly eliminate the axial force of the submersible slurry pump!

When we use the submersible slurry pump, we may have some problems with the axial force. So how should we as users eliminate it? Below, Shijiazhuang Shi Pump Slurry Pump Factory will introduce to you how to correctly eliminate the axial force of the submerged slurry pump!
1. Axial force of submersible slurry pump:
1. Causes of axial force:
Due to the unequal pressure at the suction and discharge ports, the liquid pressure on both sides of the impeller, which is not completely symmetrical, is unequal, resulting in axial force. If the liquid pressure on both sides of the impeller does not take into account the cross-sectional area of the shaft and the influence of the impeller rotation on the pressure distribution, then the force acting on the impeller is the difference between the force on the wheel disc and the force on the wheel cover, which can be converted into a calculation formula It is the product of the difference between the outlet pressure and the inlet pressure and the area of the impeller cover. Because the outlet pressure is always greater than the inlet pressure, when the submersible slurry pump rotates, there must be a force acting on the rotor along the axis and pointing toward the inlet. superior.
2. Problems caused by axial force:
Unbalanced axial force will increase the working load of the thrust bearing, which is detrimental to the bearing. At the same time, the axial force will cause the pump rotor to move toward the suction inlet, causing vibration and possibly causing the impeller mouth ring to rub and damage the pump body.
2. How to correctly eliminate the axial force of the submersible slurry pump:
For submersible slurry pumps, the outlet pressure is generally much greater than the inlet pressure, so it is particularly important to use balancing force to eliminate the axial force. How to eliminate the axial force?
1. Hydraulic slurry pumps generally use a symmetrical installation of a balance plate and an impeller. Single-stage pumps generally open a balance hole on the impeller. Of course, there is also a method of installing balance blades on the impeller disc to balance the axial force.
2. Although what we require is to eliminate the axial force, if it is completely eliminated, it will also cause instability in the rotation of the rotor. Therefore, when designing, 30% of the amount will be designed to be offset by the bearing. This is why the pump Non-drive end bearings are usually angular contact bearings because they can be used to withstand large axial forces.
Only by understanding from the beginning what is the axial force of the submersible slurry pump can we better eliminate it.
www.panstopump.com, laurashi@panstopump.com, 0086-15732149758