Why does the centrifugal pump adopt the backward curved blade impeller?
So when the fluid flows through the impeller and the guide vanes or volute, the rate of energy loss after the impeller; the dynamic pressure ratio before bending static pressure generated by the impeller type, the pump should produce high pressure to overcome the high resistance to high pressure pneumatic conveying fluid, if, have converted to the hydrostatic pressure in the guide vane or the spiral case, in turn, will inevitably cause a great loss of energy
It is the same in the speed and the radius of the impeller, the flow conditions, the absolute speed before the impeller produces than after impeller, and the flow loss and speed is proportional to the square.
. The front runner impeller than bending type short, so the diffusion channel is larger, the flow diffusion degree, partial loss of fluid through the large.
