Whole aeration cyclone vertical shaft

A shaft, the whole process technology, applied in the field of aeration and corrosion reduction, to achieve the effect of high operation safety, ingenious conception and easy construction

Inactive Publication Date: 2013-10-30
SICHUAN UNIV
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of cavitation and cavitation when the swirl shaft is used in high water h

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Whole aeration cyclone vertical shaft
  • Whole aeration cyclone vertical shaft
  • Whole aeration cyclone vertical shaft

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] The cyclone shaft for full aeration given in this example is as image 3 As shown, the swirling shaft is a conventional vertical shaft spillway tunnel below the contraction section 2 and the vertical shaft section 5 above the exit of the entire vertical shaft section 3 on the vertical wall surface suddenly expanded outward in the radial direction, provided with two mixing channels throughout the entire process. Air sill 4, after a sudden expansion, the air sill 4 gradually retracts to the wall formed by the original radius of the shaft 3 with a smooth curved surface, see Figure 4 . The aerated sill 4 can ensure that when the water flow rotates against the wall, an aerated cavity 6 will be generated, so that the water flowing through the wall of the shaft 3 is aerated water flow with a higher gas concentration, so as to completely avoid the shaft. Cavitation damage occurred on the wall.

[0029] From Figure 5 It can be seen that when the water flow swirl...

Example Embodiment

[0030] Example 2

[0031] The cyclone shaft for full aeration given in this example is as Image 6 As shown, the difference from the full-blown aerated swirl shaft given in Example 1 is that the two aerated ridges 4 provided in the shaft section 3 extend all the way to the shaft bottom plate, which is conducive to easy construction. The other factors are exactly the same as in Example 1, so omitted.

Example Embodiment

[0032] Example 3

[0033] The swirling shaft for full aeration given in this example is as Figure 7 , 8 As shown, the difference from the full aerated swirl shaft given in Example 1 is that: 1) the two aeration ridges 4 set in the shaft section 3 extend all the way to the shaft floor; 2) the shaft section 3 is set all the way There are 4 aeration ridges, and the 4 aeration ridges are evenly distributed in the circumferential direction of the shaft section. The other factors are exactly the same as in Example 1, so omitted.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a whole aeration cyclone vertical shaft which comprises a volute chamber section (1), a contraction section (2) and a vertical shaft section (3). At least one aerator (4) which penetrates the whole vertical shaft section (3) is arranged on the vertical wall surface of the vertical shaft section (3) of the cyclone vertical shaft in an outward sudden expansion manner along the radius direction of the vertical shaft section (3), smooth curved surfaces of the aerators (4) are gradually contracted to a wall surface after the aerators (4) are suddenly expanded, and the wall surface is formed by the original radius side of the vertical shaft. The whole aeration cyclone vertical shaft has the advantages that the aerators can guarantee that aeration cavities can be formed as long as water flows rotate in a wall clinging manner, so that the water flows which flow through the wall surface of the integral vertical shaft are aeration water flows containing gas with high concentration, and damage to the wall surface of the vertical shaft due to cavitation and erosion is completely prevented; the whole aeration cyclone vertical shaft is simple in structure, easy to construct and high in running safety, and the shape of the whole aeration cyclone vertical shaft is smooth and continuous.

Description

technical field [0001] The invention belongs to the technical field of aeration and corrosion reduction of swirl shafts in water conservancy projects, and in particular relates to a full-process aeration swirl shaft. Background technique [0002] The swirl shaft is an ideal choice for flood discharge and energy dissipation. So far, the research on the swirl shaft flood discharge tunnel has been relatively in-depth. A general swirling shaft spillway is composed of several parts such as an inlet section, an upper flat section, a variable slope section, a vortex chamber section, a contraction section, a shaft section, a pressure slope section, and a lower flat section (such as figure 1 shown). Its main feature is to let the water flow adhere to the wall and vortex flow to cause head loss along the way to dissipate energy, and at the same time, it will not cause atomization after the outlet of the discharge channel and serious erosion damage downstream. However, with the use o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E02B8/06
Inventor 邓军许唯临田忠张法星张建民王韦曲景学刘善均周荗林
Owner SICHUAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap