CN112681252A - Fish attracting fishway based on bottom jet flow changing flow field - Google Patents
Fish attracting fishway based on bottom jet flow changing flow field Download PDFInfo
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- CN112681252A CN112681252A CN202011418464.6A CN202011418464A CN112681252A CN 112681252 A CN112681252 A CN 112681252A CN 202011418464 A CN202011418464 A CN 202011418464A CN 112681252 A CN112681252 A CN 112681252A
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- fishway
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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
Abstract
The invention provides a fish attracting fishway capable of changing a flow field based on bottom jet flow, which comprises a fishway, wherein two ends of the fishway are respectively communicated with the upstream and downstream of riverways on two sides of hydraulic engineering, a gate is arranged at the upstream opening of the fishway, a jet mechanism is arranged at the downstream opening of the fishway, the jet mechanism comprises a plurality of jet flow pipelines arranged on a water supply pipe, the water supply pipe is connected with a water pump, and a plurality of baffles are arranged in the fishway along the distribution path of the fishway. This fishway can more efficient realization luring fish, and fish migration obtains guaranteeing.
Description
Technical Field
The invention relates to the field of fishway related equipment, in particular to a fish luring fishway capable of changing a flow field based on bottom jet flow.
Background
The fishway is a fish passing building facility arranged for ensuring fish migration in hydraulic engineering such as gate dams and the like, and the arrangement of the fishway can ensure the ecological balance in water body to a certain extent. The conventional ecological fishway simulates the ecological structure of a brook and is added with some auxiliary facilities. Although the effect of fish migration can be achieved, the efficiency is too low to achieve the expected effect. Therefore, there is a need for a more effective fish luring strategy to allow fish to enter the migration fishway.
At present, the structure of the fishway is mainly changed and auxiliary equipment is added to improve the fish luring effect, but the effect is not ideal. The invention creates the migration condition that fishes like by changing the flow field state of the entrance area of the fishway, so that the fishes can enter the fishway more quickly and accurately to achieve the expected effect.
Disclosure of Invention
The invention aims to provide a fish luring fishway capable of changing a flow field based on bottom jet flow, which can realize fish luring more efficiently and ensure fish migration.
The technical scheme includes that the fish attracting fishway capable of changing a flow field based on bottom jet flow comprises a fishway, two ends of the fishway are respectively communicated with the upstream and the downstream of riverways on two sides of hydraulic engineering, a gate is arranged at an upstream port of the fishway, a jet flow mechanism is arranged at a downstream port of the fishway, the jet flow mechanism comprises a plurality of jet flow pipelines arranged on a water supply pipe, the water supply pipe is connected with a water pump, and a plurality of baffles are arranged in the fishway along the distribution path of the water supply pipe.
In a preferable scheme, an installation groove is formed in the side wall of an upstream opening of the fishway, and the gate comprises a plurality of gate plates inserted in the installation groove.
In the preferred scheme, the bottom of the gate is rotatably installed on the rotating shaft, a hydraulic cylinder is arranged on the water facing side of the gate, and the telescopic end of the hydraulic cylinder is hinged with the gate.
In a preferred scheme, oxygen increasing equipment is arranged on one side of the fishway, and an oxygen outlet of the oxygen increasing equipment is arranged in the fishway.
In a preferable scheme, a guide net is arranged on the upstream side of the river channel and is arranged at the position of an upstream opening of the fishway.
In the preferred scheme, a drainage partition wall is arranged in the river channel, and the end part of the drainage partition wall is provided with a tail plate parallel to a downstream port of the fishway.
In the preferable scheme, a fish driving device is arranged in the river channel and is arranged on one side of a downstream opening far away from the fishway.
In a preferable scheme, a downstream port of the fishway is provided with a fish luring device.
In a preferred scheme, a sonar detection device is arranged in the river channel and is arranged at a position close to a downstream port of the fishway.
In the preferred scheme, the jet flow pipeline comprises a connecting pipe, a plurality of branch pipelines are shunted on the connecting pipe, and the length of the branch pipelines is different.
The invention provides a fish luring fishway capable of changing a flow field based on bottom jet flow, which has the following beneficial effects:
1. under the combined action of the bottom jet pipeline and the drainage partition wall, the flow field state of the inlet area of the downstream fishway is changed, the flow field of the main runner is simulated, so that the fish is made to generate illusion, and the fish luring effect is improved; the water flow of the bottom jet flow comes from the bottom of the engineering such as a dam and the like, so that the upstream water resource is not wasted; the design of the sectional bottom jet flow pipeline can change the state of the water body flow field in a wider range under the condition of the same flow.
2. The flow of the fishway can be adjusted by adjusting the opening of the gate, so that the adjustment is convenient.
3. The fish driving and attracting device and the oxygen increasing device are additionally arranged, so that the fishes are more easily close to the fishway and enter the fishway.
4. Sonar detection device real time monitoring migration shoal kind and quantity can effectively adjust the fishway.
Drawings
The invention is further illustrated with reference to the accompanying drawings and examples:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a preferred top view of the present invention;
FIG. 4 is a schematic structural view of a gate according to the present invention;
FIG. 5 is a schematic structural view of another preferred gate;
FIG. 6 is a schematic diagram of the configuration of the fluidic conduit of the present invention;
in the figure: fishway 1, gate 2, delivery pipe 3, jet pipeline 4, water pump 5, baffle 6, pivot 7, pneumatic cylinder 8, oxygen equipments 9, guide net 10, river course 11, drainage partition wall 12, drive fish device 13, lure fish device 14, sonar detection device 15, mounting groove 101, flashboard 201, connecting pipe 401, branch pipeline 402, tailboard 1201.
Detailed Description
As shown in fig. 1-2, a fish attracting fishway based on bottom efflux changes flow field, including fishway 1, fishway 1 both ends communicate with the upper reaches and the low reaches of the river course 11 of hydraulic engineering both sides respectively, the upper reaches mouth of fishway 1 is equipped with gate 2, degree of opening and shutting through control gate 2, the flow of control fishway 1, the low reaches mouth of fishway 1 is equipped with efflux mechanism, efflux mechanism is including setting up a plurality of efflux pipeline 4 on delivery pipe 3, delivery pipe 3 is connected with water pump 5, set up a plurality of baffles 6 along its distribution path in the fishway 1. The water flow in the fishway 1 is adjusted by arranging the baffle 6.
The water pump 5 is connected with the river channel 11 through a water delivery pipe, and a filter screen is arranged at the water inlet end of the water delivery pipe.
Preferably, as shown in fig. 6, the jet pipe 4 includes a connecting pipe 401, and a plurality of branch pipes 402 are branched from the connecting pipe 401, and the lengths of the branch pipes 402 are different.
The direction of the jet flow of the branch pipe 402 is parallel to the downstream port of the fishway 1.
Through setting up branch pipeline 402, can reduce water pressure, increase the regional span of efflux, prevent that single pipeline flow velocity of flow is too big to influence fish migration.
Preferably, as shown in fig. 4, the side wall of the upstream opening of the fishway 1 is provided with an installation groove 101, and the gate 2 comprises a plurality of gate plates 201 inserted into the installation groove 101.
The slope of mounting groove 101 sets up, and flashboard 201 upwards piles up to arrange from mounting groove 101 bottom and fills, and it is fixed to pack tightly through modes such as building blocks, adjusts the flow in fishway 1 through different water level control flashboards 201 quantity.
Preferably, as shown in fig. 5, the bottom of the gate 2 is rotatably mounted on a rotating shaft 7, a hydraulic cylinder 8 is arranged on the water facing side of the gate 2, and the telescopic end of the hydraulic cylinder 8 is hinged to the gate 2.
The gate 2 is driven to overturn through the hydraulic cylinder 8, and the height of the gate 2 is adjusted.
Preferably, an oxygen increasing device 9 is arranged on one side of the fishway 1, and an oxygen outlet of the oxygen increasing device 9 is arranged in the fishway 1.
The oxygenation equipment 9 is arranged in the middle and downstream area of the fishway 1, and the oxygen content of the water body in the fishway 1 is increased through the oxygenation equipment to manufacture the environment which is liked by fishes. The oxygen delivery pipeline of the oxygenation device 9 is refined and provided with a plurality of pipelines, so that oxygen is effectively dissolved in water.
Preferably, a guiding net 10 is arranged on the upstream side of the river channel 1, and the guiding net 10 is arranged at the position of the upstream opening of the fishway 1.
The fish shoal can be guided by arranging the guide net 10, so that the fish is prevented from swimming into the water turbine to cause damage, and partial garbage can be intercepted.
Preferably, a fish driving device 13 is arranged in the river channel 11, and the fish driving device 13 is arranged on one side far away from the downstream port of the fishway 1.
Specifically, the underwater flash lamp produced in Sea & Sea YS-D2J of japan can be selected as the fish driving device 13, and the fishes can be prevented from migrating along the river 11 by the fish driving device 13, so that the fishes can smoothly enter the downstream opening of the fishway 1.
Preferably, a downstream port of the fishway 1 is provided with a fish luring device 14. The fish attracting device 14 can be a KLD-65FL-60 fish attracting lamp (on water) or an YL-803000 fish gathering lamp (under water).
Through setting up attracting device 14, be favorable to leading fish to the low reaches import of fishway 1, improve fish migration efficiency.
A sonar detection device 15 is arranged in the river channel 11, and the sonar detection device 15 is arranged at a position close to a downstream port of the fishway 1.
The sonar detection device 15 selects models such as ARIS Defender double-frequency identification sonar, DIDSON underwater double-frequency identification sonar, ARIS Explorer 1200/1800/3000 image sonar, ARIS Explorer 3000 and the like, selects a proper model according to specific river conditions, can monitor the type and the number of migratory fishes, adjusts the jet speed and the oxygenation concentration of the jet pipeline 4 if necessary, and ensures proper conditions of the migratory fishes.
Preferably, as shown in fig. 3, a drainage partition wall 12 is arranged in the river channel 11. One end of the drainage partition wall 12 is provided with a tail plate 1201 parallel to the downstream opening of the fishway 1.
Under the comprehensive action of the drainage partition wall 12 and the jet flow pipeline 4, the flow field state of the inlet area of the downstream fishway is changed, the flow field of the main flow channel is simulated, and the fish luring effect is improved.
Claims (10)
1. The utility model provides a fish luring fishway based on bottom efflux changes flow field, a serial communication port, including fishway (1), fishway (1) both ends communicate with the upper reaches and the low reaches of river course (11) of hydraulic engineering both sides respectively, the upper reaches mouth of fishway (1) is equipped with gate (2), the low reaches mouth of fishway (1) is equipped with the efflux mechanism, the efflux mechanism is including setting up a plurality of efflux pipeline (4) on delivery pipe (3), delivery pipe (3) are connected with water pump (5), set up a plurality of baffles (6) along its distribution path in fishway (1).
2. The fish luring fishway based on the bottom jet flow changing flow field of claim 1 is characterized in that the side wall of the upstream opening of the fishway (1) is provided with a mounting groove (101), and the gate (2) comprises a plurality of gate plates (201) inserted into the mounting groove (101).
3. The fish attracting fishway based on the bottom jet flow changing flow field of claim 1 is characterized in that the bottom of the gate (2) is rotatably mounted on a rotating shaft (7), a hydraulic cylinder (8) is arranged on the water facing side of the gate (2), and the telescopic end of the hydraulic cylinder (8) is hinged with the gate (2).
4. The fish attracting fishway based on the bottom jet flow changing flow field according to claim 1, characterized in that an oxygen increasing device (9) is arranged on one side of the fishway (1), and an oxygen outlet of the oxygen increasing device (9) is arranged in the fishway (1).
5. The fish inducing fishway based on the bottom jet flow changing flow field of claim 1 is characterized in that a guide net (10) is arranged on the upstream side of the river channel (1), and the guide net (10) is arranged at the position of an upstream opening of the fishway (1).
6. The fish attracting fishway based on the bottom jet flow changing flow field is characterized in that a drainage partition wall (12) is arranged in the river channel (11), and a tail plate (1201) parallel to a downstream opening of the fishway (1) is arranged at the end of the drainage partition wall (12).
7. The fish inducing fishway based on the bottom jet flow changing flow field of claim 1 is characterized in that a fish driving device (13) is arranged in the river channel (11), and the fish driving device (13) is arranged on the side far away from the downstream port of the fishway (1).
8. The fish inducing fishway based on the bottom jet flow changing flow field of claim 1 is characterized in that a downstream port of the fishway (1) is provided with a fish inducing device (14).
9. The fish luring fishway based on the bottom jet flow changing flow field according to claim 1 is characterized in that a sonar detection device (15) is arranged in the river channel (11), and the sonar detection device (15) is arranged at a position close to a downstream port of the fishway (1).
10. The fish luring fishway based on the bottom jet flow changing flow field of claim 1, characterized in that the jet flow pipeline (4) comprises a connecting pipe (401), a plurality of branch pipelines (402) are branched from the connecting pipe (401), and the branch pipelines (402) have different lengths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011418464.6A CN112681252A (en) | 2020-12-07 | 2020-12-07 | Fish attracting fishway based on bottom jet flow changing flow field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011418464.6A CN112681252A (en) | 2020-12-07 | 2020-12-07 | Fish attracting fishway based on bottom jet flow changing flow field |
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| CN112681252A true CN112681252A (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011418464.6A Pending CN112681252A (en) | 2020-12-07 | 2020-12-07 | Fish attracting fishway based on bottom jet flow changing flow field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116084354A (en) * | 2023-03-21 | 2023-05-09 | 中国电建集团贵阳勘测设计研究院有限公司 | Water temperature and water flow regulation and control type bionic fishway system and regulation and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116084354A (en) * | 2023-03-21 | 2023-05-09 | 中国电建集团贵阳勘测设计研究院有限公司 | Water temperature and water flow regulation and control type bionic fishway system and regulation and control method thereof |
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Application publication date: 20210420 |
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