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Guide vane body with splitter vanes

A technology of guide vane body and diverter vane, which is applied in the field of diverter guide vanes, which can solve the problems of weakened energy conversion capacity of guide vanes, small thickness of guide vane blades, and increased displacement of guide vanes, so as to reduce vortex area and strength, and improve flow state, effect of improving efficiency

Inactive Publication Date: 2021-01-08
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness of the guide vane also has a certain influence. If the thickness of the guide vane is too small, the energy conversion ability of the guide vane will be weakened. If the thickness of the guide vane is too large, the displacement between the guide vanes will increase and the energy loss will increase.

Method used

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  • Guide vane body with splitter vanes
  • Guide vane body with splitter vanes
  • Guide vane body with splitter vanes

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Embodiment Construction

[0012] The purpose and effects of the present invention will be more obvious by describing the present invention in detail below in conjunction with the accompanying drawings and embodiments.

[0013] Such as figure 1 As shown, on the premise of not changing other main components of the pump, the inner guide vane is replaced and the auxiliary vane 2 is added. The splitter guide vane of the present invention includes a main vane 1 and an auxiliary vane 2 . The scheme adopted in this embodiment is that the auxiliary blade 2 is offset into the flow channel, and the offset angle is 15°. The length of the auxiliary blade 2 is 0.5 times the length of the main blade 1. After the auxiliary blade 2 is added, under the interference of the auxiliary blade , the shedding vortex at the trailing edge of the main blade is suppressed, the flow at the outlet of the guide vane channel is more uniform, the flow loss is reduced, and the flow state is improved, thereby improving the performance o...

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PUM

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Abstract

The invention relates to a novel splitter guide vane body, and belongs to the field of fluid machinery. The flowing state of fluid in a guide vane flow channel is improved by additionally arranging auxiliary vanes, the vortex area and intensity in the guide vane flow channel are obviously reduced, the efficiency of a pump can be remarkably improved, vibration noise induced by the fluid is reduced,and the operation stability of the pump is improved.

Description

technical field [0001] The invention relates to a novel diverter guide vane, which belongs to the field of fluid machinery. Background technique [0002] As an important energy conversion and fluid delivery device, the pump is widely used in various sectors of the national economy. As one of its main flow-passing components, the guide vane is widely used in the field of rotating machinery such as mixed-flow pumps and axial-flow pumps. Different pump types are used in various fields such as farmland drainage and irrigation, power station cooling system, aerospace and aviation, etc., and the requirements for pump performance are becoming more and more stringent. Therefore, improving the energy performance of the pump and reducing the vibration and noise of the pump are of great significance to the national economy, energy saving and emission reduction. Significance. The guide vane can eliminate the velocity loop of the liquid flowing out of the impeller and convert part of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/40F04D29/54F04D29/68
CPCF04D29/406F04D29/548F04D29/688
Inventor 张宁周志威高波倪丹
Owner JIANGSU UNIV
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