Centrifugal pumps and axial flow pump is a big difference?

centrifugal pump driven by motor, usually before start the pump, pump body and suction to the line is full of liquid. When high-speed impeller, the impeller driven in the liquid between a blade, because water pump manufacturer the effect of centrifugal force, the liquid from the impeller center is flung to the impeller outer edge ( Flow speed can be increased to 15 ~ 25 m/s) , the kinetic energy also increases with. When the liquid into the pump body, because the volute pump body form of port gradually expand, liquid flow rate to reduce gradually, part of the kinetic energy is converted to static pressure, thus liquid with high pressure along the discharge outlet.

at the same time, the impeller center because liquid was thrown to form a certain vacuum, pressure and liquid level of Pa to be higher than the impeller center, as a result, liquid under the differential effect of pipe into the pump. Impeller rotating unceasingly, the liquid is continuously breathed in and out. Because often can transport liquid centrifugal pump, mainly on the effect of centrifugal force, so it is called a centrifugal pump.

the principle of the principle of axial flow pump axial flow pump and centrifugal pump, it is mainly formed by using the high speed of impeller thrust carry water. Axial flow water pump lift, which is formed by the leaf turns to water can push the water from the bottom to the top.

the axial flow blades is usually submerged in the pool of water absorption. Because of impeller high-speed operation, while under the effects of blade form lift, continuously push up the water, to water down the drain. The rotation of the impeller constantly, is being destroyed by continuous pressure to the top of the water.

the work of the axial flow pump is based on aerodynamic theory of lift. When high-speed impeller, pump body will be from the liquid particles of impeller shaft to lift, the water flows along the axial direction.

axial flow pump look like 1 pipe, the water inlet diameter and the diameter of the pump body is similar.

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