CN106087904B - Hydraulic structure delivery port vortex reducing means - Google Patents
Hydraulic structure delivery port vortex reducing means Download PDFInfo
- Publication number
- CN106087904B CN106087904B CN201610636188.8A CN201610636188A CN106087904B CN 106087904 B CN106087904 B CN 106087904B CN 201610636188 A CN201610636188 A CN 201610636188A CN 106087904 B CN106087904 B CN 106087904B
- Authority
- CN
- China
- Prior art keywords
- disappears
- power runner
- whirlpool
- whirling wheel
- gear
- Prior art date
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- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000005465 channeling Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention provides a kind of hydraulic structure delivery port vortex reducing means, are made up of power runner, power runner shaft, power runner bearing, active column gear, passive column gear, gear-box, fixed support, the whirling wheel that disappears, the whirling wheel shaft that disappears, the whirling wheel bearing that disappears.Near power runner is located above delivery port, rotated by flow dynamic, identical with column whirlpool direction of rotation, the whirling wheel that disappears is ratcheting by active column gear, passive column gear with power runner, its rotation direction is with column whirlpool direction of rotation on the contrary, with the good whirlpool effect that disappears.The device is reasonable in design, automatic running, can increase the discharge capacity of water inlet, extends the service life of the lower station hydraulic turbine, reduces engineering cost.Solve that the prior art control critical submerged depth of water cannot be guaranteed not produce air-breathing whirlpool and the individually designed construction whirlpool facility cost that disappears is high, and the effect practical problem not as expected in many engineerings.
Description
Technical field
The invention belongs to hydraulic engineering field, specifically a kind of hydraulic structure delivery port vortex reducing means.
Background technology
In hydraulic engineering, the phenomenon that vertical-axis eddy occurs in the water inlet of hydraulic structure is very universal, and this is that one kind comes from
The flow phenomenon of Free Surface.In hydraulic structure water inlet, there are pressure water channeling type water inlet and shaft spillway etc., particularly
In the case where water level is relatively low, the whirlpool problem before hydraulic structure water inlet seems especially prominent.Whirlpool is during generation
It is easy to suck air, forms surface indentation whirlpool.The generation of whirlpool can reduce into flow, cause shaking for unit or works
Dynamic, reduction unit efficiency etc..Especially bottom port can reduce discharge capacity 60% to 80%, there is inundating the dam by flood if any revolving on the surface
Danger.
The most simple and widely used method of whirlpool is eliminated at present is ensuring that the depth of the water submerging before pressure water inlet exceedes
Critical depth of water, because the influence factor of the critical submerged depth of water, calculation formula are numerous, by formula determine minimum inundation depth not
It can guarantee that and do not produce air-breathing whirlpool.In addition, also usually individually designed in Practical Project build the whirlpool facility that disappears, its cost is high,
But effect is not as expected in many engineerings.Engineers and technicians pay much attention to whirlpool problem, Chinese patent CN
204238189 U water inlets vortex reducing means, a kind of intake tower eddy clearing structures of the U of CN 203247554, the U of CN 203144982 are a kind of
Eddy clearing structure, the U water inlet eddy eliminating structures of CN 201746823, the Y of CN 2250977 for high-velocity flow flood discharging tunnel water inlet
Prevention and dissipation grid etc., numerous studies are done, but be all to be limited to structure in itself to change, cost is high, and use condition is limited.
The content of the invention
In order to solve above-mentioned technical problem present in prior art, the invention provides a kind of waterwork
Thing delivery port vortex reducing means, by power runner, power runner shaft, power runner bearing, active column gear, passive
Column gear, gear-box, fixed support, the whirling wheel that disappears, the whirling wheel shaft that disappears, the whirling wheel bearing that disappears composition, described power runner,
Power runner shaft is together with the fixed setting of active column gear;The described whirling wheel that disappears, disappear whirling wheel shaft and passive columnar tooth
Wheel fixed setting is together；Active column gear and passive column gear are ratcheting；Described power runner is located above delivery port
Near, rotated by flow dynamic；Blade lean on power runner is set, and its incline direction can ensure power runner and column
Whirlpool direction of rotation is identical；Whirling wheel disappear with power runner rotation direction on the contrary, i.e. with column whirlpool direction of rotation on the contrary, ensureing
The good whirlpool effect that disappears;The whirling wheel shaft that disappears has sufficient length, ensures and installs at least one whirling wheel that disappears.
Hydraulic structure delivery port vortex reducing means disclosed by the invention, reasonable in design, automatic running, can increase water inlet
Discharge capacity, extend the lower station hydraulic turbine service life, reduce engineering cost;It is critical to solve prior art control
Depth of the water submerging cannot be guaranteed not produce air-breathing whirlpool and the individually designed whirlpool facility cost that disappears of building is high, is but imitated in many engineerings
Fruit practical problem not as expected.
Brief description of the drawings
Fig. 1 is hydraulic structure delivery port vortex reducing means schematic diagram.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the hydraulic structure delivery port vortex reducing means of the present invention, by power runner 1, power runner shaft 2, are moved
Power runner bearing 3, active column gear 4, passive column gear 41, gear-box 5, fixed support 6, the whirling wheel 7 that disappears, disappear whirling wheel
Axle 8, the whirling wheel bearing 9 that disappears form, and described power runner 1, power runner shaft 2 and active column gear 4 are fixedly installed on one
Rise；Together with the described whirling wheel 7 that disappears, the whirling wheel shaft 8 that disappears are fixedly installed with passive column gear 41；Active column gear 4 with
Passive column gear 41 is ratcheting；Power runner 1 rotates near being located above delivery port by flow dynamic；On power runner 1
Blade lean is set, and its incline direction can ensure that power runner 1 is identical with column whirlpool direction of rotation；Disappear whirling wheel 7 and power
The rotation direction of runner 1 is on the contrary, i.e. with column whirlpool direction of rotation on the contrary, ensureing the good whirlpool effect that disappears.The whirling wheel shaft 8 that disappears has foot
Enough length, ensures and installs at least one whirling wheel that disappears.
Embodiment 1, hydraulic structure delivery port vortex reducing means of the invention are on the Northern Hemisphere in use, delivery port water outlet, water
Stream flowing drives power runner rotate counterclockwise, drives the whirling wheel that disappears to turn clockwise by column gear, is revolved with column whirlpool
Turn in opposite direction, column whirlpool can be prevented to produce to greatest extent.
Embodiment 2, hydraulic structure delivery port vortex reducing means of the invention are in the Southern Hemisphere in use, delivery port water outlet, water
Stream flowing drives power runner to turn clockwise, and drives the whirling wheel rotate counterclockwise that disappears by column gear, is revolved with column whirlpool
Turn in opposite direction, column whirlpool can be prevented to produce to greatest extent.
Power size caused by power runner, can be by adjusting runner size, runner away from delivery port distance determination.According to
One and more than one whirling wheel that disappears can be set in the whirlpool requirement that disappears.
By changing power runner direction, the technology of gear shape belong to the scope of the present invention.
Claims (1)
1. hydraulic structure delivery port vortex reducing means, by power runner (1), power runner shaft (2), power runner bearing (3), master
Dynamic column gear (4), passive column gear (41), gear-box (5), fixed support（6）, disappear whirling wheel（7）, disappear whirling wheel shaft
（8）, disappear whirling wheel bearing（9）Composition, it is characterised in that：Described power runner (1), power runner shaft (2) and active column
Gear (4) is fixedly installed together;The described whirling wheel that disappears（7）, disappear whirling wheel shaft（8）It is fixed with passive column gear (41)
It is set together；Active column gear (4) and passive column gear (41) are ratcheting；Described power runner (1) is arranged on water outlet
Near above mouthful, rotated by flow dynamic；Blade lean on power runner (1) is set, and its incline direction can ensure power
Runner (1) is identical with column whirlpool direction of rotation；The described whirling wheel that disappears（7）With power runner (1) rotation direction on the contrary, i.e. with
Column whirlpool direction of rotation is opposite;The described whirling wheel shaft that disappears（8）There is sufficient length, ensure and at least one whirling wheel that disappears is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636188.8A CN106087904B (en) | 2016-08-05 | 2016-08-05 | Hydraulic structure delivery port vortex reducing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636188.8A CN106087904B (en) | 2016-08-05 | 2016-08-05 | Hydraulic structure delivery port vortex reducing means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106087904A CN106087904A (en) | 2016-11-09 |
| CN106087904B true CN106087904B (en) | 2017-12-15 |
Family
ID=57454367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610636188.8A Expired - Fee Related CN106087904B (en) | 2016-08-05 | 2016-08-05 | Hydraulic structure delivery port vortex reducing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106087904B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160912B (en) * | 2020-09-28 | 2021-05-14 | 山东黄河工程集团有限公司 | Dykes and dams flood prevention flood fighting system |
| CN113529639B (en) * | 2021-07-22 | 2022-08-02 | 西南石油大学 | Vertical pipe vibration suppression device and method for combined rotation of strake and impeller in mesh enclosure |
| CN116201085B (en) * | 2023-04-27 | 2023-07-07 | 江苏沙河抽水蓄能发电有限公司 | Water inlet and outlet joint vortex eliminating device of pumped storage power station |
| CN116575413B (en) * | 2023-06-12 | 2024-05-14 | 江苏大学 | Floating type counter-rotating vortex eliminating device of pump station and pump station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010112336A (en) * | 2008-11-10 | 2010-05-20 | Toshiba Corp | Francis hydraulic machine, and runner for the same |
| CN103807084A (en) * | 2014-01-24 | 2014-05-21 | 中国船舶重工集团公司第七○二研究所 | Eddy elimination device in hydraulic turbine runner body |
| CN104653278A (en) * | 2013-11-21 | 2015-05-27 | 范戴尼超级涡轮有限公司 | Thrust absorbing planetary traction drive superturbo |
| CN205934871U (en) * | 2016-08-05 | 2017-02-08 | 浙江水利水电学院 | Marine structure delivery port whirlpool device that disappears |
-
2016
- 2016-08-05 CN CN201610636188.8A patent/CN106087904B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010112336A (en) * | 2008-11-10 | 2010-05-20 | Toshiba Corp | Francis hydraulic machine, and runner for the same |
| CN104653278A (en) * | 2013-11-21 | 2015-05-27 | 范戴尼超级涡轮有限公司 | Thrust absorbing planetary traction drive superturbo |
| CN103807084A (en) * | 2014-01-24 | 2014-05-21 | 中国船舶重工集团公司第七○二研究所 | Eddy elimination device in hydraulic turbine runner body |
| CN205934871U (en) * | 2016-08-05 | 2017-02-08 | 浙江水利水电学院 | Marine structure delivery port whirlpool device that disappears |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106087904A (en) | 2016-11-09 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20180805 |
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| CF01 | Termination of patent right due to non-payment of annual fee |