1. The working principle of the centrifugal pump

Before the water pump is started, the pump and water inlet pipe are filled with water. After the water pump is running, the water in the leaves of the leaves is thrown around with the centrifugal force generated by the impeller's high -speed rotation. The water in the pool was inhaled by the water -absorbing pipe under the external atmospheric pressure to supplement this space. Then the inhaled water was thrown out of the snail shell by the impeller to enter the water pipe. It can be seen that if the centrifugal pump leaves are rotated continuously, water can be continuously absorbed and pressed, and water can be continuously raised from a low place to high or far away. To sum up, the centrifugal pump is called the centrifugal pump due to the centrifugal force generated by the high -speed rotation of the impeller, so it is called the centrifugal pump.

2. The general characteristics of centrifugal pump

(1) The flowing direction of the water along the centrifugal pump is inhaled along the axial direction of the impeller, and it flows vertically in the axial direction, that is, the direction of the water flow is 90 °.

(2) Because the centrifugal pump is imported by the impeller inlet to form a vacuum absorption, it is necessary to irrigate the water into the pump and the water absorption pipe before starting, or use a vacuum pump to draw the air to discharge the air to form a vacuum. Do not leak air, otherwise it will not be vacant, and you will not be able to suck water.

(3) Because the impeller import cannot form an absolute vacuum, the height of the absorption of the centrifugal pump cannot exceed 10 meters. In addition, the alongs of the water flowing through the water absorption pipeline, the actual allowance of the installation height 10 m. If the installation is too high, it does not absorb water. In addition, because the mountainous areas are lower than the atmospheric pressure of the plain, the same water pump in the mountains, especially when installation in the mountains, should be reduced, otherwise it cannot be suck water.