| 摘要 |
A combined multi-stage centrifugal pump has a body with inlet and outlet branch pipes, in the body at axis two shafts are installed, on those impellers of different stages of the low and high pressure pumps are fixed. The shafts are independent one from another and are as one shaft in the low pressure pump and the other shaft is in the high pressure pump. The body comprises three sections with circular split, the middle section of the body has inner radial lug with opening at center. The lug is placed between the low and high pressure pumps. The low pressure pump includes impeller and guide apparatus that has axial lug with smooth basis. The axial lug is in front of the opening of the radial lug, and the shaft of the high pressure pump is placed after the opening of the radial lug and has convex edge rounded at the top that is directed towards the opening. The impellers of both pumps are directed to one side. |
