CN104294793B - Mouth of the river bubble presses down salty method - Google Patents
Mouth of the river bubble presses down salty method Download PDFInfo
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- CN104294793B CN104294793B CN201410604558.0A CN201410604558A CN104294793B CN 104294793 B CN104294793 B CN 104294793B CN 201410604558 A CN201410604558 A CN 201410604558A CN 104294793 B CN104294793 B CN 104294793B
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- flexible pipe
- river
- inlet manifold
- described flexible
- bubble
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
- E02B1/003—Mechanically induced gas or liquid streams in seas, lakes or water-courses for forming weirs or breakwaters; making or keeping water surfaces free from ice, aerating or circulating water, e.g. screens of air-bubbles against sludge formation or salt water entry, pump-assisted water circulation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a kind of mouth of the river bubble and press down salty method, belong to environmental protection and water quality safeguards technique field, some flexible pipes are laid in river course, described flexible pipe extends along the surface of dykes and dams and the surface in riverbed, and the bearing of trend of described flexible pipe and the water (flow) direction in river perpendicular, the two ends of described flexible pipe are fixed, all described flexible pipe one end shutoff, the other end all connects an inlet manifold, described inlet manifold connects blast fan, the described flexible pipe being positioned at position, described riverbed is provided with some pores, during use, the air that described blast fan is blown out by pore forms the bubble floated bottom effluent stream, accelerate the blending of river cross-section stratified flow, suppress salt wedge upstream passing.The invention process is convenient, simple to operate, effectively inhibits salty tide to trace back, is widely used in coastal river course.
Description
Technical field
The present invention relates to environmental protection and water quality safeguards technique field, particularly relate to a kind of mouth of the river bubble and press down salty method.
Background technology
Estuary region is salt and fresh water mixing, the region met in footpath, damp power, due to the difference of density, current have obvious stratification, and the fresh water runoff that density is less is positioned at upper strata, lets out downwards, and the larger salt solution of density is in lower floor, trace back the end of along with flood current, its interface upstream tilts and to slip in wedge-like, therefore is called salt wedge.Due to the invasion of salt wedge, cause upstream, river course water factory intake to occur overproof salt water, cause water factory not get fresh water, affect the water supply security in city.The nearly salty damp activity in 10 coming year of Zhujiang Estuary is more and more frequent, and influence basin is more and more large, and the duration is more and more long, and salty tide traces back and constitutes outstanding problem urgently to be resolved hurrily in Hongkong and Macro and area, Pearl River Delta safe drinking water.Since 2004, the salty tide in Delta of Pearl River traces back municipal drinking water supply securities such as directly threatening Zhuhai, Macao, Zhong Shan, Guangzhou, Dongguan, and population suffered from disaster reaches more than 1,500 ten thousand.In order to solve Delta of Pearl River withered season drinking water problem, the distruting water transregionally project implemented is presided over by the Zhujiang River water conservancy committee, by to the scheduling far away from Upper Reaches of Pearl River multi-reservoir thousands of miles away, implement the salty urgent water transfer of providing additional supplies of pressure, alleviate the nervous situation of urban water supply greatly.Also expose some problems, mainly: when salinity in river course is in strong admixture, press salty successful, when salinity in river course is in highl stratification type, when namely salt wedge is obvious, because fresh water is let out from top layer, water transfer presses salty effect poor simultaneously.
Therefore be necessary to impel the vertical blending of salinity in river course, weaken the intensity of salt wedge, thus improve the salty efficiency of pressure.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of mouth of the river bubble to press down salty method, and it is convenient, simple to operate to implement, and effectively suppresses salty tide to trace back.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of mouth of the river bubble presses down salty method, some flexible pipes are laid in river course, described flexible pipe extends along the surface of dykes and dams and the surface in riverbed, and the bearing of trend of described flexible pipe and the water (flow) direction in river perpendicular, the two ends of described flexible pipe are fixed, all described flexible pipe one end shutoff, the other end all connects an inlet manifold, described inlet manifold connects blast fan, the described flexible pipe being positioned at position, described riverbed is provided with some pores, during use, the air that described blast fan is blown out by pore forms the bubble floated bottom effluent stream, accelerate the blending of river cross-section stratified flow, suppress salt wedge upstream passing.
As one improve, described pore towards consistent with the flow direction of current.
As further improvement, between described inlet manifold and blast fan, be provided with the first one way valve.
As further improvement, the upstream being positioned at described flexible pipe in river course arranges a fresh water drainage tube, and described fresh water drainage tube connects described inlet manifold by liquor pump.
As further improvement, between described liquor pump and inlet manifold, be provided with the second one way valve.
After have employed technique scheme, the invention has the beneficial effects as follows:
(1) due to blast fan for flexible pipe provides air, make it produce and constantly produce bubble, accelerate the salinity blending of the vertical section in river course, reduce the intensity of salt wedge, thus improve the salty efficiency of pressure, this programme only uses blast fan, flexible pipe etc. to be easy to draw materials and component with low cost just solves the problem of the drinking-water that perplexs coastal people for a long time and salt wedge invasion, and implement simple, do not need to change river course, can also recycle after a procedure, reduce input cost.
(2) because flexible pipe is laid on bottom of river channel, less on the 3rd people's water duties and responsibilities benefit (such as ship navigation etc.) impact.
(3) due to pore towards consistent with the flow direction of current, make on the one hand the bubble that blows out first to move ahead a segment distance along riverbed surface, then float, avoid salt solution implantation, reduce the intensity of salt wedge further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the principle arrangement figure of the embodiment of the present invention;
In figure: 1, dykes and dams, 2, riverbed, 3, flexible pipe, 301, pore, 4, inlet manifold, 5, pipe collar, 6, blast fan, the 7, first one way valve, 8, fresh water drainage tube, 9, liquor pump, 10, the second one way valve, 11, bubble, the 12, second detector, the 13, first detector.
In figure, the direction of arrow represents water (flow) direction.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
As Fig. 1 and Fig. 2 jointly shown in, a kind of mouth of the river bubble presses down salty method, some flexible pipes 3 are laid in river course, flexible pipe 3 selects plastic pipe or rubber tube usually, flexible pipe 3 extends along the surface of dykes and dams 1 and the surface in riverbed 2, and the bearing of trend of flexible pipe 3 and the water (flow) direction in river perpendicular, the two ends of flexible pipe 3 are fixed, time fixing, the flexible pipe 3 being positioned at corner uses pipe collar 5 to realize seamlessly transitting, can not occur that right angle bends, to affect the smooth delivery of power of air-flow, in riverbed 2 stake under dykes and dams 1 place, then pipe collar 5 is fixed on timber, and, and flexible pipe 3 of two pipe collars 5 between surperficial in riverbed 2 should be arranged by relative relaxation, make upstream sweep away the sandstone come can pass through, sandstone are avoided to pile up, usually, flexible pipe 3 extend out on dykes and dams 1, all flexible pipe 3 one end shutoff, the other end all connects an inlet manifold 4, inlet manifold 4 connects blast fan 6, the flexible pipe 3 being positioned at position, riverbed 2 is provided with some pores 301, during use, the air that blast fan 6 is blown out by pore 301 forms the bubble 11 floated bottom effluent stream, under the agitaion of bubble 11, accelerate the blending of river cross-section stratified flow, suppress salt wedge upstream passing.Pore 301 towards consistent with the flow direction of current, first move ahead along water (flow) direction when bubble 11 is blown out, by the collection salt on surface, riverbed 2 clean, it also avoid the implantation of density brine simultaneously, increase stirring area, decrease salt solution implantation dead angle.
The first one way valve 7 is provided with between inlet manifold 4 and blast fan 6, the upstream being positioned at flexible pipe 3 in river course arranges a fresh water drainage tube 8, fresh water drainage tube 8 connects inlet manifold 4 by liquor pump 9, the second one way valve 10 is provided with between liquor pump 9 and inlet manifold 4, the setting of the first one way valve 7 and the second one way valve 10, air-flow and liquid stream is made to be merely able to, along a direction flowing, avoid flow-reversing impingement blast fan 6 or liquor pump 9.Also be provided with liquor pump 9 while being provided with blast fan 6 air blast and carry fresh water, can wash away to stir with bubble 11 and be used alternatingly by fresh water, irregularly change section layered position, be more conducive to upstream incoming flow and can bring the salt water after blending into off-lying sea.
In the upstream of flexible pipe 3 layout area, the first detector 13 is set, in the downstream of flexible pipe 3 layout area, the second detector 12 is set, contrasted by the brine strength of the first detector 13 and the inspection of the second detector 12, the air blast air quantity of timely adjustment blast fan 6, or change into fresh water to wash away, to change the position of section shunting layer.First detector 13 and the second detector 12, for sampling, detection, comparison, are common analytical instrument, do not repeat them here.
Its course of work is as follows:
First flexible pipe 3 is laid, draw materials conveniently, laying project is simple, do not need to transform river course, reduce engineering cost, constructability, and then inlet manifold 4 is set on the ground, fresh water drainage tube 8 is laid at upstream fresh water area, liquor pump 9 and blast fan 6 are set as requested, by to air blast in flexible pipe 3, bubble 11 can be discharged in pore 301 on flexible pipe 3, the floating of bubble 11 can accelerate water sports, the fresh water of water body endosexine and the salt solution of bottom is made to obtain effective blending, upstream incoming flow can bring the salt water after blending into off-lying sea, tracing back of the salty tide of effective suppression.First detector 13 and the second detector 12 are checked brine strength and contrast, the air blast air quantity of adjustment blast fan 6, or turn off the blast, start liquid pump 9, change into fresh water to wash away, to change the position of section shunting layer, make section shunting layer form labile state, advantageously can bring the salt water after blending into off-lying sea in upstream incoming flow.The present invention is with low cost, Be very effective, has prospect of the application widely in the river course of region following the line of the sea.
The present invention is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, done all conversion, all drop within protection scope of the present invention.
Claims (3)
1. mouth of the river bubble presses down salty method, it is characterized in that: in river course, lay some flexible pipes, described flexible pipe extends along the surface of dykes and dams and the surface in riverbed, and the bearing of trend of described flexible pipe and the water (flow) direction in river perpendicular, the two ends of described flexible pipe are fixed, all described flexible pipe one end shutoff, the other end all connects an inlet manifold; The described flexible pipe being positioned at position, described riverbed is provided with some pores, described pore towards consistent with the flow direction of current; Described inlet manifold is connected to blast fan and liquor pump, described blast fan and liquor pump alternation; The upstream of described flexible pipe arranges a fresh water drainage tube, and described fresh water drainage tube is connected with described liquor pump, is incorporated in inlet manifold by described liquor pump by upstream fresh water; During use, the air that described blast fan is blown out by pore forms the bubble floated bottom effluent stream, accelerates the blending of river cross-section stratified flow, suppresses salt wedge upstream passing.
2. mouth of the river bubble as claimed in claim 1 presses down salty method, it is characterized in that: be provided with the first one way valve between described inlet manifold and blast fan.
3. mouth of the river bubble as claimed in claim 1 presses down salty method, it is characterized in that: be provided with the second one way valve between described liquor pump and inlet manifold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604558.0A CN104294793B (en) | 2014-10-30 | 2014-10-30 | Mouth of the river bubble presses down salty method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410604558.0A CN104294793B (en) | 2014-10-30 | 2014-10-30 | Mouth of the river bubble presses down salty method |
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| Publication Number | Publication Date |
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| CN104294793A CN104294793A (en) | 2015-01-21 |
| CN104294793B true CN104294793B (en) | 2016-02-17 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106689011A (en) * | 2016-12-27 | 2017-05-24 | 珠江水利委员会珠江水利科学研究院 | Mobile slope-type eel slide |
| CN107059762B (en) * | 2017-06-20 | 2023-03-10 | 珠江水利委员会珠江水利科学研究院 | Riverbed surface salt water wedge upward tracing inhibition device |
| CN108978572A (en) * | 2018-06-26 | 2018-12-11 | 河海大学 | A kind of vertical blending system of river mouth water flow and control method |
| CN110008642B (en) * | 2019-04-29 | 2023-04-18 | 珠江水利委员会珠江水利科学研究院 | Estuary water channel salt tide upward distance inhibition method and system based on air curtain |
| CN116341422B (en) * | 2023-05-29 | 2023-08-01 | 珠江水利委员会珠江水利科学研究院 | Method and system for inhibiting salty taste of hidden water-filled rubber dam |
| CN117051763A (en) * | 2023-07-04 | 2023-11-14 | 广州增城区东进供水有限公司 | Air bubble stirring salty-inhibiting structure suitable for sea entrance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1060850A (en) * | 1996-08-16 | 1998-03-03 | Kensetsusho Kyushu Chiho Kensetsu Kyokucho | Method and equipment for inhibiting ascending of salt water |
| CN1759033A (en) * | 2003-03-12 | 2006-04-12 | 优培斯有限公司 | Saltwater intrusion prevention system |
| CN103868671A (en) * | 2014-04-09 | 2014-06-18 | 中国船舶重工集团公司第七○二研究所 | Method for preparing fluid with layered density |
-
2014
- 2014-10-30 CN CN201410604558.0A patent/CN104294793B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1060850A (en) * | 1996-08-16 | 1998-03-03 | Kensetsusho Kyushu Chiho Kensetsu Kyokucho | Method and equipment for inhibiting ascending of salt water |
| CN1759033A (en) * | 2003-03-12 | 2006-04-12 | 优培斯有限公司 | Saltwater intrusion prevention system |
| CN103868671A (en) * | 2014-04-09 | 2014-06-18 | 中国船舶重工集团公司第七○二研究所 | Method for preparing fluid with layered density |
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| CN104294793A (en) | 2015-01-21 |
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Inventor after: Wang Hua Inventor after: Chen Wenlong Inventor after: He Yong Inventor after: Lin Jun Inventor after: Yang Fang Inventor after: Li Jie Inventor after: Wang Weiguang Inventor before: Wang Hua Inventor before: Chen Wenlong Inventor before: He Yong Inventor before: Lin Jun |
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