CN105401616A - Underground special-shaped cover plate vortex suppression device and method for open type water inlet pool - Google Patents
Underground special-shaped cover plate vortex suppression device and method for open type water inlet pool Download PDFInfo
- Publication number
- CN105401616A CN105401616A CN201510950354.7A CN201510950354A CN105401616A CN 105401616 A CN105401616 A CN 105401616A CN 201510950354 A CN201510950354 A CN 201510950354A CN 105401616 A CN105401616 A CN 105401616A
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- cover plate
- horn mouth
- intake pool
- special
- shaped cover
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Structural Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an underground special-shaped cover plate vortex suppression device and method for an open type water inlet pool and belongs to the field of water conservancy projects. The device comprises the water inlet pool, a horn opening and a water suction pipe, wherein the horn opening and the water suction pipe are arranged in the pool. The device is characterized in that a special-shaped cover plate is additionally arranged at the joint of the horn opening and the water suction pipe, and composed of a horizontal cover plate body and two vertical cover plate bodies; the width of the horizontal cover plate body is equal to that of the water inlet pool, the length of the horizontal cover plate body is 1.8 to 2 times of the diameter of the horn opening, and the thickness of the horizontal cover plate body is 0.01 m; the width of the vertical cover plate bodies is equal to that of the water inlet pool, the length of the vertical cover plate bodies is 0.2 to 0.6 time of the diameter of the horn opening, and the thickness of the vertical cover plate bodies is 0.02 m; the distance between the vertical cover plate bodies and the center of the horn mouth is 0.6 to 0.8 time of the diameter of the horn opening. The device is simple, reasonable and scientific in structure, is based on the fluid mechanics principle and the pump station design theory, and is an innovation in the vortex suppression measure of the water inlet pool.
Description
Technical field
The invention discloses a kind of open type intake pool to disappear under water whirlpool devices and methods therefor, belong to hydraulic engineering field.
Background technology
In open type intake pool; the operation condition of unit usually can change according to actual conditions; the original design parameters of intake pool is made not meet existing operation condition; flow-shape in intake pool becomes disorderly; even produce water surface whirlpool; a large amount of air can be brought in water pump by water surface whirlpool, makes water pump assembly high vibration so that cannot run, and having serious potential safety hazard.
Rectification measure in current intake pool mainly contains following four kinds: authorize invention CN201520133592 immediately below intake pool horn mouth, arrange the whirlpool cone that disappears, the whirlpool cone that disappears can fill up the slough under horn mouth, but the whirlpool cone that disappears of bottom does not have obvious eradicating efficacy to water surface whirlpool.Authorize utility model patent CN201520193114 that flat deck is under water set at intake pool, flat deck is by extending the distance of flow direction-changing under water, make suction water pipe suck flow velocity and be tending towards even, thus prevent the generation of whirlpool, but it is less for the fluidised form disturbance around horn mouth, partition effect can not be played to water surface whirlpool.Authorize utility model patent CN201520191918 that intake pool rear wall partition wall is set in intake pool, left and right sides current are made to enter horn mouth along partition wall, promote the flow velocity uniformity of horn inlet, but this measure only for the bad fluidised form caused by intake pool back wall distance, can not eliminate water surface whirlpool.Authorize utility model patent CN201520232058 above horn mouth, weld porous plate and eliminate water surface whirlpool, but this method has 2 deficiencies, first, porous plate limited size system, thus only can have barrier effect to the water surface whirlpool occurred near suction water pipe, to occurring in, intake pool water surface whirlpool is at a distance inoperative.The second, fixing porous plate can not change along with the water-level fluctuation of intake pool, if still water level is too low, does not have the effect in the whirlpool that disappears.
Summary of the invention
The present invention is exactly for above-mentioned the deficiencies in the prior art, provides a kind of open type intake pool to disappear whirlpool devices and methods therefor under water.
The object of the present invention is achieved like this, and a kind of open type intake pool under water special-shaped cover plate disappears whirlpool device, comprises intake pool and the horn mouth that is arranged in pond and suction water pipe; Described horn mouth and suction water pipe junction add a special-shaped cover plate, and described special-shaped cover plate is made up of 1 horizontal cover plate and 2 vertical cover plates; The width of described horizontal cover plate is intake pool width, and length is 1.8-2 horn mouth diameter doubly, and thickness is 0.01m; The width of described vertical cover plate is intake pool width, and length is 0.2-0.6 bell-mouthed diameter doubly, and thickness is 0.02m; Vertical cover plate is 0.6-0.8 horn mouth diameter doubly apart from horn mouth center.
Horizontal cover plate in described special-shaped cover plate and vertical cover plate all adopt concrete or metal material to make.
The described centre of form of horizontal cover plate overlaps with the centre of form of suction water pipe.
Simple and reasonable and the science of the present invention, be based on fluid mechanics principle and Design of Pump Station theoretical, be the innovation to intake pool counteracting vortex.In the intake pool that there is water surface whirlpool, to disappear whirlpool device by adding special-shaped cover plate under water, current before horn mouth are owing to being subject to the stop of special-shaped cover plate under water, walk around vertical cover plate under making a part of current direction and enter horn mouth, another part current cross horizontal cover plate, rush at intake pool rear wall repulsing or subdue the enemy of intake pool rear wall of going forward side by side to walk around vertical cover plate and enter horn mouth, make the current generation energy exchange sharply of horn mouth front upper place, namely the condition that whirlpool produces is destroyed, reach the object in the whirlpool that disappears, too do not affect bell-mouthed Inlet flow pattern again simultaneously.
Simple in structure of the present invention, rationally and science, be based on fluid mechanics principle and Design of Pump Station theoretical, to the innovation of intake pool counteracting vortex.In the intake pool that there is rear wall whirlpool and/or water surface whirlpool, to disappear whirlpool device by adding special-shaped cover plate under water, changing the flow-shape near horn mouth, make current generation energy exchange, change the condition that whirlpool occurs, simultaneously the formation in physically occluding surface whirlpool, thus reach the object in the whirlpool that disappears.
Pumping plant is irrigated in flood control, have a wide range of applications in the water transfer of region, and at present country to the construction of pumping plant and renovate just in expansion like a raging fire.Most pumping plant all likely because multiple factor makes to there is the bad fluidised forms such as whirlpool in intake pool, thus makes pumping plant be difficult to produce the benefit estimated, there are major safety risks time serious.Easy construction of the present invention, cost is lower, and effect is better, has the larger market space.
Accompanying drawing explanation
Fig. 1 to disappear whirlpool device scheme of installation for special-shaped cover plate under water.
Fig. 2 to disappear whirlpool device top view for special-shaped cover plate under water.
In figure: 1 intake pool, 2 horn mouths, 3 suction water pipes, 4 vertical cover plates, 5 horizontal cover plates, 6 intake pool rear walls.
Detailed description of the invention
Illustrate that the present invention is further illustrated below in conjunction with accompanying drawing and accompanying drawing.
A kind of open type intake pool under water special-shaped cover plate disappears whirlpool devices and methods therefor, comprises intake pool 1 and the horn mouth 2 be arranged in pond 1 and suction water pipe 3; Add a special-shaped cover plate at horn mouth 2 and suction water pipe 3 junction, special-shaped cover plate is made up of 1 horizontal cover plate 5 and 2 vertical cover plates 4; The width of described horizontal cover plate 5 is intake pool 1 width, and length is 1.8-2 horn mouth 2 diameter doubly, and thickness is 0.01m, we can set, and L is the length of horizontal cover plate 5, and B is the width of horizontal cover plate 5, D is the diameter of horn mouth 2, so L=1.8D ~ 2D, B=intake pool width; The width of described vertical cover plate 4 is intake pool 1 width, and length is the diameter of 0.2-0.6 horn mouth 2 doubly, and thickness is 0.02m; Vertical cover plate 4 is 0.6-0.8 horn mouth 2 diameter doubly apart from horn mouth 2 center.Wherein, the horizontal cover plate 5 in special-shaped cover plate and vertical cover plate 4 all adopt concrete or metal material to make.
Horn mouth 2 and suction water pipe 3 junction in open type intake pool, arrange special-shaped cover plate under water and to disappear the horizontal cover plate 5 of whirlpool device, the centre of form of horizontal cover plate 5 overlaps with the centre of form of suction water pipe 3.Arrange vertical cover plate 4 in the below of horizontal cover plate 5, vertical cover plate 4 is apart from horn mouth center 0.6-0.8 horn mouth diameter doubly.
In the intake pool 1 that there is water surface whirlpool and/or rear wall whirlpool, add special-shaped cover plate under water, current before horn mouth 2 are owing to being subject to the stop of special-shaped cover plate under water, walk around vertical cover plate 4 under making a part of current direction and enter horn mouth 4, another part current cross horizontal cover plate 5, rush at intake pool rear wall 6 and walk around vertical cover plate 4 enter horn mouth 2 through repulsing or subdue the enemy of intake pool rear wall 6, make the current generation energy exchange sharply of the horn mouth front upper place of horn mouth 2, namely destroy the condition that whirlpool produces, reach the object in the whirlpool that disappears.
Claims (4)
1. open type intake pool under water special-shaped cover plate to disappear a whirlpool device, comprise intake pool (1) and the horn mouth (2) that is arranged in pond (1) and suction water pipe (3); It is characterized in that, described horn mouth (2) and suction water pipe (3) junction add a special-shaped cover plate, and described special-shaped cover plate is made up of 1 horizontal cover plate (5) and 2 vertical cover plates (4); The width of described horizontal cover plate (5) is intake pool (1) width, and length is 1.8-2 horn mouth (2) diameter doubly, and thickness is 0.01m; The width of described vertical cover plate (4) is intake pool (1) width, and length is the diameter of 0.2-0.6 horn mouth (2) doubly, and thickness is 0.02m; Vertical cover plate (4) is 0.6-0.8 horn mouth (2) diameter doubly apart from horn mouth (2) center.
2. a kind of open type intake pool according to claim 1 under water special-shaped cover plate to disappear whirlpool device, it is characterized in that: the horizontal cover plate (5) in described special-shaped cover plate and vertical cover plate (4) all adopt concrete or metal material to make.
3. a kind of open type intake pool according to claim 1 under water special-shaped cover plate to disappear whirlpool device, it is characterized in that: the centre of form of described horizontal cover plate (5) overlaps with the centre of form of suction water pipe (3).
4. an open type intake pool under water special-shaped cover plate to disappear vortex method, the horn mouth (2) comprising intake pool (1) and be arranged in pond (1) and suction water pipe (3), it is characterized in that, add a special-shaped cover plate be made up of 1 horizontal cover plate (5) and 2 vertical cover plates (4) at horn mouth (2) and suction water pipe (3) junction, the width of horizontal cover plate (5) is intake pool (1) width, and length is 1.8-2 horn mouth (2) diameter doubly, and thickness is 0.01m, the width of vertical cover plate (4) is intake pool (1) width, and length is the diameter of 0.2-0.6 horn mouth (2) doubly, and thickness is 0.02m, vertical cover plate (4) is 0.6-0.8 horn mouth (2) diameter doubly apart from horn mouth (2) center, in the intake pool (1) that there is water surface whirlpool and/or rear wall whirlpool, add special-shaped cover plate under water, at the front current of horn mouth (2) owing to being subject to the stop of special-shaped cover plate under water, walk around vertical cover plate (4) under making a part of current direction and enter horn mouth (2), another part current cross horizontal cover plate (5), rush at intake pool rear wall (6) and walk around vertical cover plate (4) enter horn mouth (2) through repulsing or subdue the enemy of intake pool rear wall (6), make the current generation energy exchange sharply of the front upper place of horn mouth (2), namely the condition that whirlpool produces is destroyed, reach the object in the whirlpool that disappears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510950354.7A CN105401616B (en) | 2015-12-18 | 2015-12-18 | A kind of open type intake pool special-shaped cover plate vortex reducing means and its method under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510950354.7A CN105401616B (en) | 2015-12-18 | 2015-12-18 | A kind of open type intake pool special-shaped cover plate vortex reducing means and its method under water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105401616A true CN105401616A (en) | 2016-03-16 |
| CN105401616B CN105401616B (en) | 2017-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510950354.7A Active CN105401616B (en) | 2015-12-18 | 2015-12-18 | A kind of open type intake pool special-shaped cover plate vortex reducing means and its method under water |
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| CN (1) | CN105401616B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704269A (en) * | 2016-10-21 | 2017-05-24 | 江苏大学镇江流体工程装备技术研究院 | Plate-type despin device installed at water pump horn suction inlet |
| CN106759665A (en) * | 2016-11-30 | 2017-05-31 | 华北水利水电大学 | Combination waterpower fairing under pumping plant intake pool ultra low water level |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131453A (en) * | 1993-11-30 | 1996-09-18 | Ksb股份公司 | Device for preventing turbulence at pump inlets |
| JP2013199939A (en) * | 2009-03-26 | 2013-10-03 | Ebara Corp | Vortex prevention device and pump device |
| CN204570820U (en) * | 2015-04-01 | 2015-08-19 | 扬州大学 | Open type intake pool rear wall partition wall disappears whirlpool device |
| CN204676644U (en) * | 2015-04-11 | 2015-09-30 | 江苏建筑职业技术学院 | Intake pool revolving on the surface control device |
| CN205382531U (en) * | 2015-12-18 | 2016-07-13 | 江苏省水利工程科技咨询有限公司 | Whirlpool device that disappears is lapped to open type intake pool dysmorphism under water |
-
2015
- 2015-12-18 CN CN201510950354.7A patent/CN105401616B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131453A (en) * | 1993-11-30 | 1996-09-18 | Ksb股份公司 | Device for preventing turbulence at pump inlets |
| JP2013199939A (en) * | 2009-03-26 | 2013-10-03 | Ebara Corp | Vortex prevention device and pump device |
| CN204570820U (en) * | 2015-04-01 | 2015-08-19 | 扬州大学 | Open type intake pool rear wall partition wall disappears whirlpool device |
| CN204676644U (en) * | 2015-04-11 | 2015-09-30 | 江苏建筑职业技术学院 | Intake pool revolving on the surface control device |
| CN205382531U (en) * | 2015-12-18 | 2016-07-13 | 江苏省水利工程科技咨询有限公司 | Whirlpool device that disappears is lapped to open type intake pool dysmorphism under water |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704269A (en) * | 2016-10-21 | 2017-05-24 | 江苏大学镇江流体工程装备技术研究院 | Plate-type despin device installed at water pump horn suction inlet |
| CN106759665A (en) * | 2016-11-30 | 2017-05-31 | 华北水利水电大学 | Combination waterpower fairing under pumping plant intake pool ultra low water level |
| CN106759665B (en) * | 2016-11-30 | 2023-04-07 | 华北水利水电大学 | Combined hydraulic rectifying device under ultralow water level of pump station water inlet pool |
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| Publication number | Publication date |
|---|---|
| CN105401616B (en) | 2017-07-25 |
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Address after: 210029 No. 5, Shanghai Road, Nanjing, Jiangsu Applicant after: Jiangsu water conservancy engineering science and technology consulting Limited by Share Ltd Address before: 210029 No. 5, Shanghai Road, Nanjing, Jiangsu Applicant before: JIANGSU PROVINCE WATER ENGINEERING SCI-TECH CONSULTING CO., LTD. |
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