Vertical single-stage single-suction submerged centrifugal pump symmetrical double-outlet vortex pump body
A centrifugal pump and dual outlet technology, which is applied in the field of vertical single-stage single-suction liquid centrifugal pump symmetrical dual-outlet vortex chamber pump body, which can solve the problem of difficult casting of small-sized pump bodies, inconvenience in casting and processing, and complex pump body structure. and other problems, to achieve the effects of small vibration, long service life and wide range of high efficiency.
Inactive Publication Date: 2015-12-23
DANAI PUMPS
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Problems solved by technology
[0002] The traditional vertical single-stage single-suction submerged centrifugal pump is mostly designed in the form of a single outlet vortex chamber or a space guide vane. The single outlet vortex chamber pump body has a large radial force under non-design working conditions. This kind of pump body has a certain adverse effect on the efficiency of the vertical submerged centrifugal pump and the service life of the sliding bearing, while the structure of the pump body in the form of space guide vanes is complex, which is not convenient for casting and processing, and the casting of small-sized pump bodies is difficult , high scrap rate
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[0012] like Figure 1-3 As shown, the vertical single-stage single-suction submerged centrifugal pump has a symmetrical double-outlet vortex chamber pump body, the upper part of the pump body 2 is provided with an upper flange 1, and the pump body 2 is provided with two horizontally symmetrically arranged vortex chambers 4 and Two symmetrically arranged outlet diffuser tubes 3 corresponding to the two vortex chambers 4, the outlet diffuser tubes 3 are in the spiral shape vertically upward in the outlet direction, and the inlet positions of the outlet diffuser tubes 3 are located in the corresponding vortex chambers 4 The outlet of the outlet diffuser pipe 3 communicates with the upper flange 1 of the pump body 2, which can change the flow direction of the medium flowing out of the impeller from radial flow to axial flow, reduce the flow velocity of the liquid, and increase the flow rate of the liquid. Since the vortex chamber 4 of the pump body 2 and the outlet diffuser pipe 3...
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The invention discloses a symmetric double-outlet vortex chamber pump body of a vertical single-stage single-suction submerged centrifugal pump; the upper part of the pump body is provided with an upper flange; and two vortex chambers which are arranged horizontally and symmetrically are arranged in the pump body. The symmetric double-outlet vortex chamber pump body of the vertical single-stage single-suction submerged centrifugal pump has the characteristics that the structure is simple and the radial force can be maintained balanced under any working conditions, has the advantages that the efficiency is basically consistent, the high-efficiency scope is wide, the vibration is small, the service life of a sliding bearing is long, the strength of the pump body is better and the design thickness is a little smaller compared with a single-vortex chamber pump body, and further has the advantages that the casting is easy and an outlet diffusion tube is blocked more uneasily when the pump body with the small specifications is cast compared with a space guide vane-type pump body.
Description
technical field [0001] The invention belongs to the technical field of fluid conveying machinery, and in particular relates to a vertical single-stage single-suction submerged centrifugal pump with symmetrical double-outlet vortex chamber pump body. Background technique [0002] The traditional vertical single-stage single-suction submerged centrifugal pump is mostly designed in the form of a single outlet vortex chamber or a space guide vane. The single outlet vortex chamber pump body has a large radial force under non-design working conditions. This kind of pump body has a certain adverse effect on the efficiency of the vertical submerged centrifugal pump and the service life of the sliding bearing, while the structure of the pump body in the form of space guide vanes is complex, which is not convenient for casting and processing, and the casting of small-sized pump bodies is difficult , The rejection rate is extremely high. Contents of the invention [0003] The object...
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IPC IPC(8): F04D29/42
Inventor 王德静许金鹏李秋菊韩燕云
Owner DANAI PUMPS