CN114718005A - Fish blocking floating gate suitable for large diversion canal - Google Patents
Fish blocking floating gate suitable for large diversion canal Download PDFInfo
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- CN114718005A CN114718005A CN202210254512.5A CN202210254512A CN114718005A CN 114718005 A CN114718005 A CN 114718005A CN 202210254512 A CN202210254512 A CN 202210254512A CN 114718005 A CN114718005 A CN 114718005A
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- floating
- stainless steel
- net
- longitudinal force
- fish blocking
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 31
- 241000251468 Actinopterygii Species 0.000 claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000005188 flotation Methods 0.000 claims abstract description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 40
- 239000010935 stainless steel Substances 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 32
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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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
- E02B1/006—Arresting, diverting or chasing away fish in water-courses or water intake ducts, seas or lakes, e.g. fish barrages, deterrent devices ; Devices for cleaning fish barriers
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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
- Y02A40/60—Ecological corridors or buffer zones
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
Abstract
The application relates to a fish blocking floating gate suitable for a large diversion canal, which is characterized by comprising a floating head line, a net cover and a foot line, wherein the floating head line is connected with the top of the net cover, the foot line is connected with the bottom of the net cover, and two ends of the floating head line are provided with anchor seats for fixing with two banks; the floating line includes the steel cable and follows a plurality of flotation pontoon that the steel cable set up, steel cable and flotation pontoon pass through anchor clamps and connect, the steel cable sets up the flotation pontoon below, the etting with the steel cable is connected. The invention solves the problems that the existing fish blocking net is easy to shrink in use, the mesh structure is unstable, and water flow has continuous impact force on the net in the diversion project.
Description
Technical Field
The application relates to the field of water conservancy and fish protection, in particular to a fish blocking floating gate suitable for a large diversion canal.
Background
The diversion project is to convey the water resource of the water source region with abundant water resource to the water demand region with insufficient water resource through the structures such as the diversion canal, the pipeline and the like. Because the fish in the water source area is abundant, in order to protect fish resources, a fish blocking facility needs to be arranged so as to prevent the fish in the water source area from entering the aqueduct by mistake. In addition, China is accelerating to implement major diversion and water transfer projects such as south-to-north water transfer and the like, and relates to different watersheds, fish regions are obviously different, fish resources in the water source regions need to be protected, biological invasion among different watersheds needs to be prevented, and the health and stability of an ecological system are promoted.
At present, the net barrier is the most widely used fish blocking facility in large and medium reservoir spillways and lake bay reservoirs branch of a river in China, has the advantages of strong adaptability to the change of fish blocking sections, targeted mesh design, good escape prevention effect, simple structure, economic one-time investment and the like, and also has the function of blocking a part of floaters. However, the existing fish blocking net has the problems that the net is easy to shrink in use, the mesh structure is unstable, and water flow has continuous impact force on the net in the water diversion and adjustment project.
Disclosure of Invention
An object of the embodiment of the application is to provide a block fish floating gate suitable for large-scale diversion canal, solve current block fish net and have the netting and contract easily in the use, the mesh structure is unstable to and rivers have the problem of lasting impact force to the netting in diversion water conservancy diversion engineering.
In order to achieve the above purpose, the present application provides the following technical solutions:
the embodiment of the application provides a fish blocking floating gate suitable for a large diversion canal, which comprises a floating headrope, a net and a foot headrope, wherein the floating headrope is connected with the top of the net, the foot headrope is connected with the bottom of the net, and two ends of the floating headrope are provided with anchor seats for fixing with two banks; the floating line includes the steel cable and follows a plurality of flotation pontoon that the steel cable set up, steel cable and flotation pontoon pass through anchor clamps and connect, the steel cable sets up the flotation pontoon below, the netting with the steel cable is connected.
The anchor clamps include connecting portion, flotation pontoon clamp part and steel cable clamp part, the one end of flotation pontoon clamp part and steel cable clamp part is all fixed on the connecting portion, the other end passes through screw nut and connects.
The bottom line is a ballast stainless steel ring chain.
The fish blocking floating gate also comprises a longitudinal force maintaining structure, the longitudinal force maintaining structure comprises a first longitudinal force stainless steel loop chain and a second longitudinal force stainless steel loop chain,
the first longitudinal force stainless steel loop chain is hung from the steel cable and is connected with the netting along the length direction of the first longitudinal force stainless steel loop chain, and the length of the first longitudinal force stainless steel loop chain is 50-100 cm;
the second longitudinal force stainless steel ring chain is hung from the buoy and is connected with the netting along the length direction of the second longitudinal force stainless steel ring chain, and the length of the second longitudinal force stainless steel ring chain is the same as the height of the netting.
The first longitudinal force stainless steel ring chain is arranged at intervals of 1 in a 10cm mode, and every 6 floating cylinders are provided with one second longitudinal force stainless steel ring chain.
And an auxiliary net is arranged at the top of the fish blocking floating gate, and the meshes of the auxiliary net are larger than those of the netting.
The length of each buoy is 1m, and the distance between every two buoys is 70 cm.
Compared with the prior art, the invention has the beneficial effects that:
the floating fish blocking gate enables the whole floating gate to float on the water surface through the floating line, and the netting of the floating fish blocking gate can be kept in an open state through the bottom line and the weight effect of the weight on the bottom line, so that fish can be effectively blocked, fish resources in a reservoir are prevented from overflowing to a diversion canal, the fish resources are protected, and the floating fish blocking gate is suitable for a large diversion canal of the reservoir.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic diagram of the fish blocking floating gate of example 1.
Fig. 2 is a schematic view of the connection of the floating line and the netting according to the embodiment.
Fig. 3 is a schematic view of a fixture.
Fig. 4 is a schematic view showing the connection of the floating line and the net in example 2.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the net comprises a net body, 2, a floating line, 21, a steel cable, 22, a buoy, 23, a clamp, 231, a connecting part, 232, a buoy clamping part, 233, a steel cable clamping part, 234, an auxiliary net fixing part, 3, a bottom line, 41, a first longitudinal force stainless steel ring chain, 42, a second longitudinal force stainless steel ring chain, 5 and an auxiliary net.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The terms "first," "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily being construed as indicating or implying any actual such relationship or order between such entities or actions.
Floating fish barrier embodiment 1
The water diversion canal of the central line work engineering pottery fork canal head in south-to-north water diversion guides water from the reservoir at the Dangjiang mouth, and when the river works normally, the reservoir water level near the local canal head gate is 170m, the lowest water diversion water level is 145m of the ultimate water drop level of the reservoir, and the extreme highest water diversion water level is 172.2m of the reservoir design flood level when the river meets with a heavy flood. According to hydrological data and geological conditions near the water diversion canal, a fish blocking floating gate is arranged at a position about 100m upstream of a canal head gate, two ends of the fish blocking floating gate are respectively anchored on ground anchors on two banks, the two ground anchors are positioned on the same horizontal line, the corresponding water level is 170m, and the span between the two ground anchors is 289 m.
As shown in fig. 1, the fish blocking floating gate of the present embodiment is a net structure, and includes a net 1, a floating line 2 and a bottom line 3. The netting 1 is arranged between the floating headrope 2 and the bottom headrope. The two ends of the floating line 2 are provided with anchor seats 3 which are detachably connected with the shore anchors.
As shown in fig. 2, the floating line 2 includes a wire rope 21 and a plurality of buoys 22, the buoys 22 being disposed along the wire rope 21, the wire rope 21 being connected to the buoys 22 by clamps 23. Each pontoon 22 has a length of 1m, and the distance between every two pontoons 22 is 70 cm.
The clamp 23 is structured as shown in fig. 3, and includes a connecting portion 231, a float clamping portion 232 and a cable clamping portion 233, the connecting portion 231 is a stainless steel strip with a certain width, the float clamping portion 232 and the cable clamping portion 233 are both ring-shaped clamps formed by two half rings, one end of each ring-shaped clamp is fixed on the connecting portion 231 through a screw nut, and the other end of each ring-shaped clamp is connected through a screw nut to clamp the float 22 and the cable 21. The surface of the float bowl can be provided with anti-skid patterns.
The top of the netting 1 is equal to the floating line 2 in length and is fixed at the bottom of the floating line 2. According to the type of local fish resources, the mesh size of the net coat 1 is set to be 23mm multiplied by 23mm, and the horizontal shrinkage factor is set to be 0.77.
The bottom of the netting 1 is connected with a foot line 3. In one embodiment, the base line 3 is a 20mm ballast stainless steel link chain with ballast rings hanging at regular intervals on the ballast stainless steel link chain. Through the arrangement of the weight stainless steel ring chain and the weight ring, the netting can keep a drooping state, and the netting is prevented from floating.
In addition, the length of the floating gate is also designed. Under the impact of water flow, the floating net 2 has larger pulling force on the ground anchors at two banks, the length of the floating gate is adjusted to 312m, so that the floating gate forms a vertical arc surface in water, and the tangential angle of the pulling force of the steel cable on the ground anchors is about 30 degrees.
Fish blocking floating gate example 2
The other setup in this example is similar to example 1, but with the addition of a longitudinal force maintaining structure and a secondary net 5, as shown in fig. 4.
The top of the clamp 23 is provided with an auxiliary net fixing part 234 for fixing the top of the auxiliary net 5, the height of the auxiliary net 5 is 70cm, and the bottom is drooped to overlap with the netting 1. The mesh size of the auxiliary net 5 is 100 multiplied by 100 mm, suspended matters, floating objects, fiber substances and solid particle substances which are larger than the mesh size on the water surface can be basically blocked in front of the net, so that floating dirt monomers and the total amount which reach the front of a dirt blocking grid of a factory building water inlet are greatly reduced, and the running of the power station water turbine unit can be ensured to be safer and more efficient.
The longitudinal force maintaining structure includes a first longitudinal force stainless steel endless chain 41 and a second longitudinal force stainless steel endless chain 42. The first stainless steel link chain 41 is suspended every 10cm from the wire rope 21 and has a length of 0.5 m. The first stainless steel link chain is fixed to the wire rope 21 by a buckle, and tied and knotted at corresponding positions along the length thereof with the net 1 and the subsidiary net 5.
One of every 6 buoys 22 hangs a second longitudinal stainless steel ring chain 42 from the lower part, the length of the second longitudinal stainless steel ring chain is the same as the height of the netting 1, the top of the second longitudinal stainless steel ring chain is fixed on a central line at the bottom of the clamp 23, the bottom of the second longitudinal stainless steel ring chain is connected with the corresponding position of the bottom line 3, and the second longitudinal stainless steel ring chain 42 penetrates through the height of the whole netting and is tied and knotted with the corresponding position of the netting 1 along the length of the second longitudinal stainless steel ring chain. Through setting up first vertical force stainless steel endless chain 41 and second vertical force stainless steel endless chain 42, can improve the intensity of netting 1, prevent that the net of netting 1 from being dragged the deformation, having lost the guard action.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. A fish blocking floating gate suitable for a large diversion canal is characterized by comprising a floating head line, a net and a bottom line, wherein the floating head line is connected with the top of the net, the bottom line is connected with the bottom of the net, and two ends of the floating head line are provided with anchor seats for fixing with two banks; the floating line includes the steel cable and follows a plurality of flotation pontoon that the steel cable set up, steel cable and flotation pontoon pass through anchor clamps and connect, the steel cable sets up the flotation pontoon below, the netting with the steel cable is connected.
2. The floating fish blocking gate suitable for the large diversion canal as claimed in claim 1, wherein the clamp comprises a connecting portion, a float clamp portion and a cable clamp portion, one end of the float clamp portion and one end of the cable clamp portion are fixed on the connecting portion, and the other end of the float clamp portion and the other end of the cable clamp portion are connected through screws and nuts.
3. The fish blocking floating gate suitable for the large diversion canal according to claim 1, wherein the base line is a heavy stainless steel ring chain.
4. The fish blocking floating gate suitable for the large diversion canal in accordance with claim 1, wherein said fish blocking floating gate further comprises a longitudinal force maintaining structure, said longitudinal force maintaining structure comprises a first longitudinal force stainless steel loop chain and a second longitudinal force stainless steel loop chain,
the first longitudinal force stainless steel loop chain is hung from the steel cable and is connected with the netting along the length direction of the first longitudinal force stainless steel loop chain, and the length of the first longitudinal force stainless steel loop chain is 50-100 cm;
the second longitudinal force stainless steel ring chain is hung from the buoy and is connected with the netting along the length direction of the second longitudinal force stainless steel ring chain, and the length of the second longitudinal force stainless steel ring chain is the same as the height of the netting.
5. The fish blocking floating gate suitable for the large diversion canal as claimed in claim 4, wherein 1 longitudinal stainless steel ring chain is arranged every 10cm, and one second longitudinal stainless steel ring chain is arranged for every 6 buoys.
6. The floating fish blocking gate suitable for the large diversion canal as claimed in claim 4, wherein an auxiliary net is arranged on the top of the floating fish blocking gate, and the mesh of the auxiliary net is larger than that of the net.
7. A floating fish blocking gate suitable for large diversion ditches as claimed in any one of claims 1 to 5, wherein the length of each pontoon is 1m, and the distance between every two pontoons is 70 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210254512.5A CN114718005A (en) | 2022-03-15 | 2022-03-15 | Fish blocking floating gate suitable for large diversion canal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210254512.5A CN114718005A (en) | 2022-03-15 | 2022-03-15 | Fish blocking floating gate suitable for large diversion canal |
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| Publication Number | Publication Date |
|---|---|
| CN114718005A true CN114718005A (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210254512.5A Pending CN114718005A (en) | 2022-03-15 | 2022-03-15 | Fish blocking floating gate suitable for large diversion canal |
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| Country | Link |
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| CN (1) | CN114718005A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4738563A (en) * | 1987-07-22 | 1988-04-19 | Clark Stephen E | Buoyant marine fence |
| CN102995614A (en) * | 2012-11-16 | 2013-03-27 | 无锡商业职业技术学院 | Water intercepting device |
| CN103329834A (en) * | 2013-07-24 | 2013-10-02 | 广西大学 | Fish blocking net suitable for large-range fence fish cultivation in reservoir |
| CN105672190A (en) * | 2016-03-30 | 2016-06-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Warning cable structure for blocking fish in front of reservoir dam |
| CN205567471U (en) * | 2015-10-21 | 2016-09-14 | 中国水产科学研究院黄海水产研究所 | Concave type gulf mouth and fyord suspension block facility |
| CN110786280A (en) * | 2018-08-02 | 2020-02-14 | 天津市海王星海上工程技术股份有限公司 | Stretching type bottom-sitting net cage |
| CN111616082A (en) * | 2020-05-19 | 2020-09-04 | 中国水产科学研究院渔业机械仪器研究所 | Flow choking device for deep sea fishing ground culture |
| CN213427796U (en) * | 2020-09-29 | 2021-06-15 | 珠海德赛海洋渔业科技有限公司 | Anti-wind-wave net cage |
-
2022
- 2022-03-15 CN CN202210254512.5A patent/CN114718005A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4738563A (en) * | 1987-07-22 | 1988-04-19 | Clark Stephen E | Buoyant marine fence |
| CN102995614A (en) * | 2012-11-16 | 2013-03-27 | 无锡商业职业技术学院 | Water intercepting device |
| CN103329834A (en) * | 2013-07-24 | 2013-10-02 | 广西大学 | Fish blocking net suitable for large-range fence fish cultivation in reservoir |
| CN205567471U (en) * | 2015-10-21 | 2016-09-14 | 中国水产科学研究院黄海水产研究所 | Concave type gulf mouth and fyord suspension block facility |
| CN105672190A (en) * | 2016-03-30 | 2016-06-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Warning cable structure for blocking fish in front of reservoir dam |
| CN110786280A (en) * | 2018-08-02 | 2020-02-14 | 天津市海王星海上工程技术股份有限公司 | Stretching type bottom-sitting net cage |
| CN111616082A (en) * | 2020-05-19 | 2020-09-04 | 中国水产科学研究院渔业机械仪器研究所 | Flow choking device for deep sea fishing ground culture |
| CN213427796U (en) * | 2020-09-29 | 2021-06-15 | 珠海德赛海洋渔业科技有限公司 | Anti-wind-wave net cage |
Non-Patent Citations (1)
| Title |
|---|
| 王淼: "南水北调中线工程拦鱼设施制安技术应用", 河南水利与南水北调, no. 02, 25 April 2016 (2016-04-25), pages 20 - 21 * |
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