Connection structure and installation method among inducer, centrifugal wheel and rotor
A technology of connection structure and centrifugal wheel, which is applied to components of pumping devices for elastic fluids, non-variable pumps, pump components, etc., and can solve problems such as many parts, unfavorable reliability of centrifugal pumps, and complex connection structures , to achieve a firm connection structure, reduce cavitation, and achieve the same effect on the central axis of rotation
Active Publication Date: 2020-05-12
ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER
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Problems solved by technology
[0003] However, the installation of the existing centrifugal pump and the inducer is generally to directly connect the inducer, the centrifugal wheel and the rotor to the pump shaft respectively. Since there are many parts in the connection part and the connection structure is complicated, it is not conducive to the reliability of the centrifugal pump operation.
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[0034] like Figure 1 to Figure 5 As shown, in order to solve the above technical problems, the present invention adopts the following technical scheme: a connection structure between the induction wheel, the centrifugal wheel and the rotor, including a partition plate and a connecting column, the connecting column passes through the partition plate, and the connecting column includes the first A connecting column 1 and a second connecting column 2, the dividing plate is a cylindrical structure, and the dividing plate includes an induction wheel dividing plate 3, a centrifugal wheel dividing plate 4 and a rotor dividing plate 5, and the induction wheel dividing plate 3 and The centrifugal wheel partition plate 4 is fixedly connected through the first connecting column 1, and the centrifugal wheel separating plate 4 and the rotor separating plate 5 are fixedly connected through the second connecting column 2; the separating plate and the connecting column together form a connect...
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The invention discloses a connecting structure of an induction wheel, a centrifugal wheel and a rotor. The connecting structure comprises splitter plates and connecting columns, the connecting columnspass through the splitter plates, the connecting columns comprise the first connecting columns and the second connecting columns, the splitter plates are of cylindrical structures, the splitter plates comprise an induction wheel splitter plate, a centrifugal wheel splitter plate and a rotor splitter plate, the induction wheel splitter plate and the centrifugal wheel splitter plate are fixedly connected through the first connecting columns, and the centrifugal wheel splitter plate and the rotor splitter plate are fixedly connected through the second connecting columns. An installing method ofthe connecting structure comprises the steps of 1) installation of the rotor splitter plate; 2) installation of the centrifugal wheel splitter plate; and 3) installation of the induction wheel splitter plate. The induction wheel, the centrifugal wheel and the rotor can be stably connected, the number of parts is small, the structure is simple, burden alleviation on a pump shaft can be achieved, the assembly process is more convenient, and the condition that induction wheel, centrifugal wheel and rotor axial alignment deviations are caused by looseness of the connecting structure, and consequently the working performance of the centrifugal pump is influenced is prevented.
Description
technical field [0001] The invention belongs to the technical field of centrifugal pump production, and in particular relates to a connection structure and an installation method among an induction wheel, a centrifugal wheel and a rotor. Background technique [0002] The inducer is generally used to improve the cavitation performance of the centrifugal pump. It can increase the pressure at the inlet of the centrifugal pump, so that the pump can still operate without a large performance loss caused by cavitation. Usually the inducer is an axial flow section installed upstream of the pump main impeller. The angle of attack of the inducer is very small and the inlet edge is very thin, so the disturbance to the flow is very small, so the formation of cavitation and its harmful effects on the flow can be minimized, and its function is to gradually increase the pressure to the desired size , so installing an inducer on a centrifugal pump can improve the cavitation performance of ...
Claims
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IPC IPC(8): F04D29/20F04D29/22F04D29/62F04D29/66
CPCF04D29/20F04D29/225F04D29/2272F04D29/628F04D29/669
Inventor 郭晓梅施高萍潘劲波
Owner ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER