Explosion-proof self-priming oil pump working principle

General centrifugal oil pump start before the pump shell and the suction pipe shall be filled with liquid, when the prime the pump shaft and the impeller rotates, the blade between the liquid and spins, the liquid under the action of centrifugal force, the blade passage between the left to the impeller outer edge and into the spiral pump shell, because of the flow channel area gradually expanded, was thrown flow slows down,

Part of the speed can be converted into static pressure energy, so that the pressure rise, and finally discharged from the discharge pipe.

At the same time, because the liquid from the impeller thrown out, the center part of the impeller caused low pressure area, and the suction liquid surface pressure formed pressure difference, under the action of the pressure difference, the liquid is constantly sucked, and with a certain pressure discharged to the pump.

It can be seen that the working principle of centrifugal oil pump is that the impeller rotates at high speed in the pump shell filled with liquid, so that the liquid produces centrifugal force, so as to rely on the centrifugal force to transport liquid.