CN103918591B - Movable fish blocking device used in overflow process of reservoir dam - Google Patents
Movable fish blocking device used in overflow process of reservoir dam Download PDFInfo
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- CN103918591B CN103918591B CN201410177457.XA CN201410177457A CN103918591B CN 103918591 B CN103918591 B CN 103918591B CN 201410177457 A CN201410177457 A CN 201410177457A CN 103918591 B CN103918591 B CN 103918591B
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- net
- wire rope
- spillway
- rope net
- flood
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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
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention discloses a movable fish blocking device used in the overflow process of a reservoir dam. The fish blocking device is intercepted in an inlet of a spillway of the reservoir dam or the spillway. The fish blocking device comprises a layer of steel wire rope net. The lower net corner on one side of the steel wire rope net is fixedly connected to a fixed point of a spillway wall of the spillway, and the other three net corners of the steel wire rope net are connected with a starting and stopping unit through an inhaul cable and a pulley set. A fish blocking net covers and is fixed to the flood current impact surface of the steel wire rope net. The device is ingenious in design, on the premise that safety in the overflow process of the dam is guaranteed, the overflow fish escaping phenomenon can be greatly reduced, fishery industry breeding benefits and water resources are protected, and the device is of great significance in guaranteeing public safety of city tap water drinking water sources, and has the advantages of being convenient to operate and easy to install.
Description
Technical field
The present invention relates to a kind of device for blocking fish, the fish of escape can be stopped when reservoir dam overflows flood.
Background technology
A lot of reservoir is not only engaged in fishery cultivating now, and its major function also comprises the task of bearing supply urban drinking water, reservoir is as behind drinking-water water source, a certain proportion of silver carp bighead will be cultivated, reservoir cultivation silver carp bighead quantity very little, microorganism in reservoir will be too many, and water will form eutrophication and form green alga, forms severe contamination to reservoir drinking-water water source.Reservoir meets with in order to ensure that dam safety needs the flood that overflows when Freshets roar down from the mountains, and some time reservoirs need to overflow several times flood, during each flood that overflows more than several days or two weeks.The habit of the silver carp bighead of reservoir cultivation all can be run toward the place of current, when overflowing big vast, the shoal of fish can run away from spillway along mighty torrent, when overflowing big vast so each, the loss of silver carp bighead is very large, not only have impact on reservoir fishery culture benefit, will be subject to very large loss economically; And reservoir cleans water source without silver carp bighead, serious reservoir risk of drinking water pollution event can be there is again.
In order to reduce the loss, in production practices, also there is the exploration that barrier net is set, but owing to there is following odjective cause and subjective understanding mistake, cause blocking fish work and do not have effect:
1. existing barrier net easily hinders flood discharge, may jeopardize safety of dam body, forms potential safety hazard;
2. when reservoir upstream outburst flood, have a lot of waves bits (rubbish) with under flood, think that in the industry wave bits can have a significant impact barrier net, barrier net is difficult to practical function;
3. existing barrier net is because insufficient strength, dam overflow flood time by the impact of mighty torrent, destroyed by rush of water by flood soon, and have no idea again after damaging to recover;
4., due to landform and the vegetation complexity of reservoir, existing barrier net, when reservoir rises, is easily tangled submerged by vegetation and loses effect.Therefore, when thought a lot of way flood controls block fish all there is no an effect, at present in the industry to reservoir overflow flood time run the heavy losses that fish causes and be all accustomed to.
Summary of the invention
In order to solve above-mentioned drawback, technical problem to be solved by this invention is, provide a kind of for overflow flood time device for blocking fish, the fish of escape can be stopped when reservoir dam overflows flood.In order to solve the problems of the technologies described above, the technical solution used in the present invention is, reservoir dam overflows the movable device for blocking fish of flood, and comprise barrier net, it is characterized in that, the interception of described device for blocking fish is in the spillway entrance or spillway of reservoir dam; Described device for blocking fish comprises layer of steel wire netting; The off line angle of described wire rope net side is fixed on the fixing point of excessive big vast wall of spillway, and wire rope net remaining three net angle is connected keying unit by drag-line with assembly pulley, and described barrier net covers and is fixed on the mighty torrent shock surface of described wire rope net.
Adopt said apparatus, first, by the long-term observation of applicant, find when flood peak produces, the wave bits come with mighty torrent generally can not enter into dam spillway, but are mainly trapped in bay, upper and middle reaches, so wave bits do not affect the device for blocking fish be arranged in dam spillway; The second, wire rope net effectively can increase the flood fighting intensity of flow of barrier net, with complete block fish work and unlikely damage; 3rd, wire rope net only one jiao fix, all the other triangles connect headstock gear by guy cable pulley, the attitude of wire rope net and barrier net thereof can be adjusted easily: the drag-line that headstock gear unclamps on the upside of wire rope net two jiaos can be started, make wire rope net and barrier net thereof be tilted upward attitude along mighty torrent direction; Or start the drag-line that headstock gear unclamps two jiaos of wire rope net on-fixed side, make wire rope net and barrier net thereof along mighty torrent direction in the attitude that tilts; Thus barrier net can be opened or closed according to excessive big vast situation and barrier net flood fighting intensity when dam overflows flood, and select the direction of opening or angle, as barrier net can all be opened when a-hundred-year exceptional flood peak is attacked, the least bit is not had to affect, to guarantee safety on the reservoir dam flood that overflows.4th, to overflow big vast wall or stressed on multiple firm point on the bank as long as be arranged on reservoir, least bit impact is not had on reservoir dam safety.5th, barrier net only just covers when needs overflow flood and is fixed on wire rope net mighty torrent shock surface by this device, and while being convenient to management, barrier net extends service life greatly.
In summary, beneficial effect of the present invention is, this apparatus design is ingenious, guarantee dam overflow flood safety basis on can reduce the flood that overflows in a large number and run the phenomenon of fish, protection fishery cultivating benefit and water quality resource, to ensureing that the public safety of city tap-water drinking water source has and important effect; Have easy to operate simultaneously and simple advantage is installed.
Preferably, described wire rope net and barrier net thereof are that cable-stayed type is distributed near spillway porch.Find in experiment, the impact of the flood fighting water of this kind of oblique roller, to block the combination properties such as fish effect optimum.Described cable-stayed type refers to that the overflow angle of cut of big vast wall of wire rope net and barrier net and spillway two sides thereof is not right angle, but with the angle of intersection tilted.Barrier net should be arranged on spillway mouth as far as possible simultaneously, as far as possible away from floodwater releasing port.
Preferably, on the upside of described barrier net, be provided with buoyant member, on the downside of described barrier net, be provided with the part that heavily hangs down.Find in experiment, this kind of preferred version effectively can reduce the escape amount of fish.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of embodiment 1;
Fig. 2 is embodiment 1 plan structure schematic diagram;
Fig. 3 is the main TV structure schematic diagram that embodiment 1 covers barrier net state;
Fig. 4 is that embodiment 1 tilts attitude structural representation;
Fig. 5 is embodiment 1 tilted upward attitude structural representation;
Fig. 6 is embodiment 2 plan structure schematic diagram, and wire rope net and barrier net thereof are cable-stayed type distribution;
Fig. 7 is the main TV structure schematic diagram of embodiment 3, is provided with buoyant member and the part that heavily hangs down.
Embodiment
Embodiment 1: see accompanying drawing 1 ~ 5, reflects a kind of concrete structure of the present invention, and described reservoir dam overflows big vast movable device for blocking fish interception in the spillway entrance or spillway of reservoir dam;
Described device for blocking fish comprises layer of steel wire netting 9; Barrier net 10 covers and is fixed on the mighty torrent shock surface of described wire rope net 9.Off line angle 2 on the left of described wire rope net 9 is fixed on the fixing point of excessive big vast wall 1 of spillway.The online angle, left side of wire rope net 9 is connected first by the first drag-line 12 and opens and closes unit 14 with the first assembly pulley 11,13; The off line angle, right side of wire rope net 9 is connected second by the second drag-line 3 and opens and closes unit 15 with the second assembly pulley 4,16; The online angle, right side of wire rope net 9 is connected the 3rd by the 3rd drag-line 8 and opens and closes unit 5 with the 3rd assembly pulley 7,6.
Start the 3rd and open and close unit 5, second keying unit 15, unclamp the 3rd drag-line 8, second drag-line 3, make wire rope net 9 and barrier net 10 thereof along mighty torrent direction in the attitude that tilts, as Fig. 4.
Start the first keying unit 14, the 3rd and open and close unit 5, unclamp the first drag-line 12, the 3rd drag-line 8, make wire rope net 9 and barrier net 10 thereof be tilted upward attitude along mighty torrent direction, as Fig. 5.
Embodiment 2: see Fig. 6, difference is, wire rope net 30 and barrier net thereof are that cable-stayed type is distributed near spillway porch.All the other are identical with embodiment 1.
Embodiment 3: see Fig. 7, difference is, is provided with buoyant member 21 on the upside of described barrier net 23, is provided with the part 20 that heavily hangs down on the downside of described barrier net 23.Barrier net 23 bottom does not have composite steel wire netting 22 simultaneously.All the other are identical with embodiment 1.
The above-mentioned implementation that the present invention describes is only in order to technical scheme of the present invention is clearly described, and can not be interpreted as and make any restriction to the present invention.The present invention has known multiple alternative or distortion in the art, under the prerequisite not departing from essential meaning of the present invention, all falls into protection scope of the present invention.
Claims (4)
1. reservoir dam overflows the movable device for blocking fish of flood, and comprise barrier net, it is characterized in that, the interception of described device for blocking fish is in the spillway entrance or spillway of reservoir dam; Described device for blocking fish comprises layer of steel wire netting; The off line angle of described wire rope net side is fixed on the fixing point of excessive big vast wall of spillway, and wire rope net remaining three net angle is connected keying unit by drag-line with assembly pulley, and described barrier net covers and is fixed on the mighty torrent shock surface of described wire rope net.
2. reservoir dam as claimed in claim 1 overflows the movable device for blocking fish of flood, and it is characterized in that, described wire rope net and barrier net thereof be that cable-stayed type is distributed in close spillway porch.
3. reservoir dam as claimed in claim 1 or 2 overflows the movable device for blocking fish of flood, it is characterized in that, is provided with buoyant member on the upside of described barrier net, be provided with the part that heavily hangs down on the downside of described barrier net.
4. reservoir dam as claimed in claim 1 overflows the using method of movable device for blocking fish of flood, it is characterized in that, starts and open and close the drag-line that unit unclamps on the upside of wire rope net two jiaos, make wire rope net and barrier net thereof be tilted upward attitude along mighty torrent direction; Or start and open and close the drag-line that unit unclamps two jiaos of wire rope net on-fixed side, make wire rope net and barrier net thereof along mighty torrent direction in the attitude that tilts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410177457.XA CN103918591B (en) | 2014-04-29 | 2014-04-29 | Movable fish blocking device used in overflow process of reservoir dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410177457.XA CN103918591B (en) | 2014-04-29 | 2014-04-29 | Movable fish blocking device used in overflow process of reservoir dam |
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| Publication Number | Publication Date |
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| CN103918591A CN103918591A (en) | 2014-07-16 |
| CN103918591B true CN103918591B (en) | 2015-07-15 |
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| CN201410177457.XA Active CN103918591B (en) | 2014-04-29 | 2014-04-29 | Movable fish blocking device used in overflow process of reservoir dam |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780715B (en) * | 2016-04-12 | 2017-11-17 | 张金武 | A kind of multi-functional device for blocking fish and river course block fish system |
| CN105900866B (en) * | 2016-04-19 | 2019-03-26 | 中国电建集团贵阳勘测设计研究院有限公司 | Floated fish system that blocks |
| CN108094291A (en) * | 2017-12-13 | 2018-06-01 | 贵州省黑冲生态农业发展有限公司 | The fishery cultivating combined type block for preventing rollover |
| CN109455630A (en) * | 2018-12-19 | 2019-03-12 | 河南帕菲特搬运设备有限公司 | A kind of preposition grid Intercepting Orbit carrying platform of elevator machine travel |
| CN111236134A (en) * | 2019-10-18 | 2020-06-05 | 杨志光 | Movable spillway fish blocking gate |
| CN111436388B (en) * | 2020-04-16 | 2022-10-18 | 河北农业大学 | Method and device for protecting fish resources in water transfer engineering |
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| GB2303283B (en) * | 1995-07-21 | 1997-07-23 | Maritime Mechanic Ltd | Beach net |
| CN2884893Y (en) * | 2006-02-13 | 2007-04-04 | 何勇 | Inclined fish blocking fence |
| CN101278656A (en) * | 2007-12-04 | 2008-10-08 | 杭州千岛湖发展有限公司 | Device for blocking fish with barrier net in ascending sea-route |
| CN202172721U (en) * | 2011-08-01 | 2012-03-28 | 杨志光 | Illuminating drop net with fish separating device and safety escape passage for silver carp and bighead carp fry |
| KR101174864B1 (en) * | 2011-12-21 | 2012-08-17 | (주)엠디 | Apparatus for integrated multi-tropic aquaculture with a purpose of tourism |
| CN202697475U (en) * | 2012-07-09 | 2013-01-30 | 宣伯民 | Ship passing door of self-help fish blocking foil |
| CN103168755A (en) * | 2012-04-18 | 2013-06-26 | 重庆市三峡生态渔业发展有限公司 | Electricity-net composite fish blocking system and method |
| CN203040421U (en) * | 2013-02-06 | 2013-07-10 | 许剑辉 | Adjustable lifting fishing net |
| CN103329834A (en) * | 2013-07-24 | 2013-10-02 | 广西大学 | Fish blocking net suitable for large-range fence fish cultivation in reservoir |
| CN203775941U (en) * | 2014-04-29 | 2014-08-20 | 杨志光 | Movable fish blocking device capable of blocking fishes during flooding of reservoir dam |
-
2014
- 2014-04-29 CN CN201410177457.XA patent/CN103918591B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2303283B (en) * | 1995-07-21 | 1997-07-23 | Maritime Mechanic Ltd | Beach net |
| CN2884893Y (en) * | 2006-02-13 | 2007-04-04 | 何勇 | Inclined fish blocking fence |
| CN101278656A (en) * | 2007-12-04 | 2008-10-08 | 杭州千岛湖发展有限公司 | Device for blocking fish with barrier net in ascending sea-route |
| CN202172721U (en) * | 2011-08-01 | 2012-03-28 | 杨志光 | Illuminating drop net with fish separating device and safety escape passage for silver carp and bighead carp fry |
| KR101174864B1 (en) * | 2011-12-21 | 2012-08-17 | (주)엠디 | Apparatus for integrated multi-tropic aquaculture with a purpose of tourism |
| CN103168755A (en) * | 2012-04-18 | 2013-06-26 | 重庆市三峡生态渔业发展有限公司 | Electricity-net composite fish blocking system and method |
| CN202697475U (en) * | 2012-07-09 | 2013-01-30 | 宣伯民 | Ship passing door of self-help fish blocking foil |
| CN203040421U (en) * | 2013-02-06 | 2013-07-10 | 许剑辉 | Adjustable lifting fishing net |
| CN103329834A (en) * | 2013-07-24 | 2013-10-02 | 广西大学 | Fish blocking net suitable for large-range fence fish cultivation in reservoir |
| CN203775941U (en) * | 2014-04-29 | 2014-08-20 | 杨志光 | Movable fish blocking device capable of blocking fishes during flooding of reservoir dam |
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| CN103918591A (en) | 2014-07-16 |
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