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A centrifugal pump with double-variable curvature flow channel

A technology of variable curvature and centrifugal pumps, applied in the field of centrifugal pumps, can solve problems such as unfavorable water flow, achieve the effects of reducing vibration and noise, facilitating manufacturing, installation and maintenance, and smooth water flow

Active Publication Date: 2022-07-12
KSB SHANGHAI PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the traditional guide vane flow channel design is convenient for manufacturing and processing, the sharp 90° turn of the water flow will bring greater resistance loss and more vortices, which is extremely unfavorable to water flow

Method used

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  • A centrifugal pump with double-variable curvature flow channel
  • A centrifugal pump with double-variable curvature flow channel
  • A centrifugal pump with double-variable curvature flow channel

Examples

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Embodiment Construction

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0026] figure 1 A schematic diagram of a partial assembly structure of a centrifugal pump according to an embodiment of the present invention is shown. like figure 1 As shown, the centrifugal pump 100 may include an impeller 10, a guide vane body 20, a pump body 30 and / or a gasket 40, and the like. In one embodiment, the centrifugal pump 100 may include figure 2 A to 2F or 4A and 4B show vane body 20 with double variable curvature flow channels. In one embodiment, the centrifugal pump 100 may be a multi-stage centrifugal pump, wherein after the water flow comes out of the impeller 1...

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Abstract

The invention provides a centrifugal pump, comprising a guide vane body, wherein the tail portion of the positive guide vane blade of the guide vane body is an arc surface, so that the flow channel section of the positive guide vane flow channel of the guide vane body is fan-shaped , and / or the curved space flow channel of the guide vane body has a double-variable curvature flow channel curved surface. By using a centrifugal pump with a double-variable curvature flow channel, the right-angle bending formed by the two planes of the curved space flow channel is turned into a curved surface bending of a double-variable curvature space curved surface, thereby making the water flow smoother and improving the hydraulic efficiency of the pump , and reduce the vibration and noise of the pump.

Description

technical field [0001] The invention relates to the field of mechanical engineering, in particular to a centrifugal pump with a double-variable curvature flow channel. Background technique [0002] Conventional centrifugal pumps may include impellers, vane bodies, pump bodies, and / or gaskets, among others. Factors that have a greater impact on the hydraulic performance of the centrifugal pump may include the flow state of the water flow, the state of water inlet, the state of water outlet, and / or the state of passing through the pump body. Conventional vane body runners may typically include forward vane runners, curved space runners, and / or reverse vane runners. The dynamic flow channel is usually included in the impeller and the inducer, and the static flow channel is usually included in the suction chamber, the pressurized water chamber (volute), the guide vane, the conical tube and the elbow and other parts. [0003] Figure 3A and 3B A schematic diagram and a partial...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/44F04D29/66F04D1/06
CPCF04D29/448F04D29/445F04D29/669F04D1/06Y02E10/20
Inventor 霍幼文
Owner KSB SHANGHAI PUMP
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