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Method and apparatus for eliminating runner opening vortex

A technology of runner opening and eddy current, applied in the direction of fluid flow, mechanical equipment, etc., to achieve the effects of improving efficiency, eliminating damage, and suppressing vibration and noise

Inactive Publication Date: 2007-09-05
宫多乾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these designs only reduce the influence of vortex on the engine intake to a certain extent, and cannot fundamentally solve this problem

Method used

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  • Method and apparatus for eliminating runner opening vortex
  • Method and apparatus for eliminating runner opening vortex
  • Method and apparatus for eliminating runner opening vortex

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Embodiment Construction

[0019] A method for eliminating the vortex of the runner opening according to the present invention is to arrange a plurality of guide vanes at the front end of the runner mouth, so that when the fluid enters the runner mouth, a plurality of centripetal planes are formed with the center of the runner mouth as the center. fluid and enters the flow channel.

[0020] As shown in Figure 1 and Figure 2, it is a device for eliminating the vortex of the runner mouth. It is installed on the plane perpendicular to the fluid flow direction at the runner mouth, with the center point of the runner mouth as the midpoint, and more than 8 pieces are set along the edge of the runner. Outer flow guide plate 2, each guide plate 2 is arranged radially and equidistantly vertically, the length and height of the guide plate 2 can be the same, and the diameter of the flow channel can be used as a reference basis, considering the level of pressure difference and The size of the flow rate, the deflect...

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Abstract

The invention discloses a kind of method and device to eliminate runner mouth eddy flow, this method is to set up 8 or more flow deflectors at the front-end of runner mouth, and make the runner mouth' spindle as the center when the fluid enters runner mouth then form many centripetal fluids and into the runner mouth. The mentioned guide plate is radial and equidistant set up. This invention can effectively eliminate all kinds of eddy flow which is resulted by the angular velocity brought when fluid flows, so that it increases the fluid's flowing efficiency largely and decreases resisting force libration and noise .When it is used in hydro power station, it can increase the water's speed in the channel, accordingly, increases the dynamo's power evidently. When it is used in airspace area, it can remarkably improve the air current' flow field station in the inlet channel, and decrease the possibility of engine surges or even ceases which is produced by eddy flow in the inlet channel when the plane flies. This invention is also suitable to use on the other mechanical devices which have runner and use fluid as mediator.

Description

1. Technical field [0001] The invention belongs to the field of fluid mechanics, and in particular relates to a method for eliminating eddy currents at flow channel openings, and also relates to a device using the method. 2. Background technology [0002] Fluid mechanics is a basic science involving many fields, and it plays a pivotal role in the fields of aerospace, water conservancy and ships. As we all know, when the fluid flows from the high-pressure area to the low-pressure area, a vortex will be generated. The strong vortex will cause the liquid pump to suck in air, causing "cavitation" in the pump to reduce the working efficiency of the pump, and in severe cases, the pump will stop working. Inhalation of air into the water inlet of a hydropower station will cause the turbine to fail to operate normally. Therefore, in hydropower stations, there are trumpet-shaped designs with or without eddy currents, and there are also oval mouths and vortex elimination rods for weake...

Claims

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Application Information

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IPC IPC(8): F15D1/00
Inventor 宫多乾宫海林宫玄
Owner 宫多乾
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