How to realize the seal between pump body and pump shaft without self sealing self-priming pump?
The water is mixed with the air from the suction pipe at the high speed of the impeller to form a mixture of gas and water and is discharged into the separating chamber. Here the air is expelled and the water returns from the return valve to the impeller inlet. This is repeated until the air is exhausted, and the water pump is mixed with water. The working principle is mixed with the outside mixing.
As the liquid continues to impact the blade in the volute, it is constantly crushed by the impeller, stirring strongly with the air, producing a mixture of gas and water, and continuously flowing, resulting in the separation of the gas and water. The mixture is peeled off at the outlet of the volute and separated into the separation chamber along the short tube. In the separation chamber, the air is separated and discharged by the outlet pipe, and the water flows to the outer edge of the impeller through the left and right return holes and is mixed with the air of the suction pipe. In this way, the air in the suction pipe is gradually drained out, and the water is pumped into the pump to complete the self-priming process. Sewage pumps, self-priming pumps, oil pumps, diaphragm pumps, screw pumps, gear pumps, pumps the same, the difference is that the backwater does not flow to the outer edge of the impeller, and flow to the impeller entrance
I use the vertical, the pump shaft has two wheels, one is a water turbine, a seal wheel, pump shell and pump shaft do not touch. Excuse me, what's the principle of sealing it? What about the principle and troubleshooting of this kind of self-priming pump? Thank you very much!!!!
