Under the action of centrifugal force, the liquid is thrown from the center of the
Impeller to the outer edge and obtains energy, leaving the outer edge of the impeller at high speed and entering the spiral pump housing. In the spiral pump housing, the liquid slows down due to the gradual expansion of the flow channel, and part of the kinetic energy is transformed into static pressure energy, and finally the higher pressure flows into the discharge pipe and is sent to the required place. When the liquid flows from the center of the impeller to the outer edge, a certain vacuum is formed in the center of the impeller. Because the pressure above the liquid surface of the storage tank is greater than the pressure at the pump entrance, the liquid is continuously pressed into the impeller
