Corrosion resistant self-priming pumpIt belongs to self-priming centrifugal pump, which has the advantages of compact structure, easy operation, stable operation, easy maintenance, high efficiency, long service life, and strong self-priming ability There is no need to install a bottom valve in the pipeline. Before operation, it is only necessary to ensure that a certain amount of liquid is stored in the pump body Different liquids can use self-priming pumps made of different materials.

Corrosion resistant self-priming pumpFlow in the direction of rotation Then it merges with the water flowing from the right return hole and flows along the snail shell Due to the continuous impact of the liquid on the blades inside the snail shell, it is constantly shattered by the impeller and strongly mixed with the air, generating a mixture of gas and water that flows continuously and cannot be separated The mixture is separated by a tongue at the outlet of the snail shell and enters the separation chamber along a short tube In the separation chamber, the air is separated and discharged through the outlet pipe, while the water still flows through the left and right return holes towards the outer edge of the impeller and mixes with the air in the suction pipe. This cycle is repeated, gradually exhausting the air in the suction pipe and allowing the water to enter the pump, completing the self-priming process.

The working principle of a corrosion-resistant self-priming pump is to fill the pump casing with water (or the pump casing itself with water) before starting the pump After starting, the high-speed rotation of the impeller causes the water flow in the impeller channel to flow towards the vortex shell. At this time, a vacuum is formed at the inlet, causing the inlet check valve to open, and the air in the suction pipe to enter the pump and reach the outer edge through the impeller channel.

Characteristics of corrosion-resistant self-priming pumps:

1. Strong sewage discharge capacity: The special impeller anti blocking design ensures that the pump is unobstructed

2. Energy saving: Adopting a hydraulic model, the efficiency is 3-5% higher than that of a typical self-priming pump

3. Good self-priming performance: The self-priming height is 1 meter higher than that of a typical self-priming pump, and the self-priming time is shorter

　　Corrosion resistant self-priming pumpFor ordinary centrifugal pumps, if the suction liquid level is below the impeller, it is inconvenient to fill water in advance when starting To store water in the pump, a bottom valve needs to be installed at the inlet of the suction pipe. During pump operation, the bottom valve causes significant hydraulic losses.

Corrosion resistant self-priming pumpStructure description: