| 摘要 |
A submersible mono-block pump unit includes a hydro-motor and a centrifugal pump arranged in separate cases. Centrifugal pump is rigidly fit to the shaft of the hydro-motor, and the hydro-motor is attached through a flange to the vertical section of the pump. In the body of the pump a blade impeller is placed, this is rigidly fit to the shaft of the hydro-motor, through its back disc at the side of suction of liquid near the hub as a solid of rotary body. Liquid outlet pipe has spiral form and at its outlet a pressure branch pipe is arranged, with inner diameter that is equal to width of the outlet pipe. The impeller is arranged without front disc, and the blades have height as a half of the outlet pipe. |
