The Principle of Scroll Pump

Impeller rotation, the liquid according to the direction of rotation of the impeller flow along the flow channel, into the impeller blades between the liquid, driven by the blades, and the impeller with the movement, and thus its circumferential velocity can be considered equal to the circumferential velocity of the impeller, which generates a centrifugal force, centrifugal force size and the square of the circumferential velocity is proportional to. Due to the liquid between the blade and the pump channel liquid circumferential velocity is different, between the two produce a direction perpendicular to the axis and point to the longitudinal direction of the flow channel of the annular rotary motion, known as the longitudinal vortex. Under the action of the longitudinal vortex, the liquid from the suction to discharge process can be many times to flow into the impeller and out of the impeller, it every flow into the impeller once, it will get a time of energy, when it is from the impeller to the runners, and the liquid in the runners of the movement of the liquid mixing, in the mixing process to produce momentum exchange, so that the liquid in the runners of the energy increase.