Vertical seam type fishway of vertical coiling structure

Abstract

The invention provides a vertical seam type fishway of a vertical coiling structure, and relates to the technical field of fishways, the vertical seam type fishway comprises an inlet pool, the inlet pool is connected with an outlet pool through a vertical coiling channel, the pool wall of the inlet pool is provided with a plurality of first inlets, and the pool wall of the outlet pool is provided with a plurality of first outlets; the vertical coiling channel comprises a plurality of main channels which are vertically coiled, the adjacent main channels are connected through coiling bends, the interiors of the main channels are divided into a plurality of pool chambers through a plurality of first partition plates, the pool chambers are communicated with one another, the interiors of the coiling bends are divided into rest chambers and passages through second partition plates, and the rest chambers are communicated with the passages. And the rest room is communicated with the aisle. The system is low in construction cost, has good terrain adaptability, and can effectively maintain the stability and diversity of fish populations.

Description

Technical Field

[0001] The invention relates to the technical field of fishways, in particular to a vertical slotted fishway with a vertically raised structure. Background Art

[0002] The construction of dams inevitably cuts off the reproduction channels of migratory fish, causing a serious decline in the species and number of migratory fish in the basin. As an effective engineering and technical means, fishways are key measures to alleviate the impact of dam construction on fish and river connectivity. The construction of fishways aims to help blocked fish pass through dams or other obstacles smoothly and migrate to their important living places such as breeding grounds, feeding grounds or wintering grounds. Through the construction of fishways, biological resources can be effectively protected, genetic information exchange between fish upstream and downstream of the dam can be promoted, the natural fish gene pool can be maintained, the cave-dwelling diversity of fish germplasm resources can be guaranteed, and the stability of fish population structure can be maintained.

[0003] However, traditional fishways usually require a large amount of land, which is particularly evident at high dam sites with complex terrain. Traditional fishways have many shortcomings, such as complex layout, high construction costs, and long construction periods. In addition, they have certain limitations when adapting to different dam heights and cannot be flexibly adjusted. Summary of the invention

[0004] In view of the above-mentioned prior art, the present invention proposes a vertical slot fishway with a vertically raised structure.

[0005] The present invention provides a vertical slot fishway with a vertical spiral structure, comprising an inlet pool, which is connected to an outlet pool through a vertical spiral channel, a plurality of first entrances are arranged on the wall of the inlet pool, and a plurality of first exits are arranged on the wall of the outlet pool. The vertical spiral channel comprises a plurality of vertical spiral main channels, adjacent main channels are connected through spiral bends, the interior of the main channels is partitioned into a plurality of pool chambers through a plurality of first partitions, the pool chambers are interconnected, the interior of the spiral bend is partitioned into a lounge and an aisle through a second partition, the lounge and the aisle are interconnected.

[0006] Preferably, three first inlets are arranged on the pool wall at which water enters the pool, and three first outlets are arranged on the pool wall at which water exits the pool.

[0007] Preferably, a plurality of flow promoters are provided at the first inlet and the first outlet. The position and number of flow promoters and their coordination with the fishway entrance need to be considered during design to ensure that the flow promoters can provide suitable flow rate options and guide fish into the fishway. At the same time, the flow promoters need to be regularly maintained and cleaned to ensure their normal operation and effective function.

[0008] Preferably, the flow promoter includes a base, the base is connected to the perturbator through a traction rope, and a flow rate regulating sensor is provided on the perturbator. The flow promoter is provided with a flow rate regulating sensor, and the flow rate of the flow promoter can be adjusted according to the time period and the migratory habits of fish, and the flow rate is adjusted according to the preferred flow rate of the target fish species, so as to provide a suitable migratory environment and improve the migratory efficiency of fish.

[0009] Preferably, the base is made of concrete or stone; the traction rope is made of steel wire; the disturber is made of lightweight material, and the shape and size of the disturber can be designed and adjusted as needed to produce a turbulent flow field suitable for fish preferences.

[0010] Preferably, the first partition includes a large partition unit and a small partition unit that are staggered with each other.

[0011] Preferably, a main resting pool or an auxiliary resting pool is provided in the rest room, the main resting pool is used to provide a cave-dwelling ecological environment for fish, and the auxiliary resting pool is used to provide a natural riverbed environment for fish.

[0012] Preferably, the main rest pool includes a pool box, a second inlet extending from top to bottom is provided on the right side of the front wall of the pool box, a second outlet extending from left to right is provided on the upper left side of the front wall of the pool box, and sand, stones and aquatic plants are placed inside the pool box.

[0013] Preferably, the auxiliary rest pool includes a pool box, a soil cavity is arranged inside the pool box, a corresponding number of circular third entrances are arranged on the right side of the soil cavity and the front wall of the pool box, a number of circular third exits are arranged on the left top wall of the soil cavity, and sand and gravel are placed inside the soil cavity.

[0014] Preferably, the vertical spiral channel is made of reinforced concrete, the slope of each main channel is 2%-6.5%, and the spiral height is 4-7m.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a vertical seam fishway with a vertical disc structure, which has a low construction cost, good terrain adaptability, and can be adjusted according to actual engineering needs. At the same time, the water flow conditions and rest environment inside the fishway can better meet the migration needs of fish and improve the success rate of fish passing through the fishway. The present invention solves the problems of large footprint and poor adaptability of traditional fishways through innovative fishway design. The present invention has the characteristics of low construction cost, high space utilization, strong adaptability to terrain conditions, excellent traffic conditions and energy dissipation conditions, and can effectively maintain the stability and diversity of fish populations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a three-dimensional schematic diagram of a vertical slot fishway in an embodiment of the present invention.

[0017] Figure 2 Schematic diagram of a vertical slot fishway according to an embodiment of the present invention.

[0018] Figure 3 Schematic diagram of the structure of the flow promoter in the embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the structure of the main rest pool in an embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the auxiliary rest pool in an embodiment of the present invention.

[0021] In the figure: 1. Entering the pool; 2. Exiting the pool; 3. First entrance; 4. First exit; 5. Base; 6. Tow rope; 7. Disturbance device; 8. Flow rate adjustment sensor; 9. Main channel; 10. Spiral bend; 11. First partition; 12. Pool room; 13. Second partition; 14. Rest room; 15. Aisle; 16. Pool box; 17. Second entrance; 18. Second exit; 19. Pool box; 20. Soil cavity; 21. Third entrance; 22. Third exit. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific diagrams.

[0023] Example: Figure 1-5 A vertical slot fishway with a vertical spiral structure is shown, comprising a square inlet pool 1, which is connected to a square outlet pool 2 through a vertical spiral channel, a first entrance 3 is arranged on each of the three side walls of the inlet pool 1, and a first exit 4 is arranged on each of the three side walls of the outlet pool 2.

[0024] Furthermore, two flow promoters are provided at the first inlet 3 and the first outlet 4 to change the direction and speed of the water flow and provide a suitable migration channel. The flow promoter includes a base 5, which is connected to a perturbator 7 through a traction rope 6. A flow rate regulating sensor 8 is provided on the perturbator 7, and the flow rate regulating sensor 8 can be adjusted according to the preferred flow rate of the target fish species. The base 5 is cast with concrete to ensure the stability and fixity of the flow promoter; the traction rope 6 is made of steel wire to ensure that the flow promoter can move and suspend freely in the water; the perturbator 7 is made of lightweight material and can be suspended in the water to produce a turbulent flow field suitable for the preferences of fish.

[0025] The speed and direction of the water flow at the inlet are adjusted adaptively by the perturbator 7 on the flow propeller, and the flow velocity of the inlet section is monitored in real time by the flow velocity regulating sensor 8, so as to provide the most suitable water flow conditions for fish migration and increase the success rate of fish upstream. Along the longitudinal section direction of the water flow, the flow propeller is arranged at non-equidistant intervals to construct multiple flow velocity zones at the inlet, so that fish of various sizes and swimming abilities can pass through, and provide channels for fish migration.

[0026] Furthermore, the vertical spiral channel includes several vertical spiral main channels 9, and adjacent main channels 9 are connected by spiral bends 10. The vertical spiral channel is made of reinforced concrete, and vertically spirals from the downstream water level to the upstream water level. The slope of each layer of the main channel 9 is 5%, the spiral height is 6m, and the overall climbing height is 100m. The interior of the main channel 9 is equidistantly divided into several pool chambers 12 by several first partitions 11. The first partition 11 includes large partition units and small partition units that are staggered from each other, so that the pool chambers are interconnected. The interior of the spiral bend 10 is partitioned into a lounge 14 and an aisle 15 by a second partition 13, and the lounge 14 and the aisle 15 are interconnected.

[0027] Furthermore, a main rest pool or an auxiliary rest pool is provided in the rest room 14, and the main rest pool and the auxiliary rest pool are staggered and distributed in several rest rooms 14. The main rest pool is used to provide a burrowing ecological environment for fish, and the auxiliary rest pool is used to provide a natural riverbed environment for fish.

[0028] Further, such as Figure 4 As shown, the main rest pool includes a pool box 16, a second inlet 17 which passes through from top to bottom is arranged on the right side of the front wall of the pool box 16, a second outlet 18 which extends from left to right is arranged on the upper left side of the front wall of the pool box 16, and sand, stones and aquatic plants are placed inside the pool box 16.

[0029] The main resting pool can provide a stable environment for fish, which helps to restore their physical strength so as to better migrate upstream. The stones are of different sizes and are arranged in a staggered manner, providing a hidden space for fish, forming a relatively still water space, and providing a habitat simulating a natural environment for fish, which meets the ecological needs of fish burrowing, and attracts them to enter and rest. Fish enter the main resting pool through the second entrance 17, leave the resting pool from the second exit 18, continue to rise upward, and complete the migration. The second entrance 17 is connected to the front part of the pool chamber, so that the fish can find the resting pool conveniently and quickly. The exit part adopts a small hole structure and is connected to the pool chamber of the rear part, so that the fish can leave the resting pool more efficiently.

[0030] In this embodiment, sand, gravel, stones and aquatic plants are arranged in the main resting pool to create a more ecological resting pool environment, which can provide resting conditions for upstream fish. After several rotations and rises, the fish reach the fishway exit and complete the migration.

[0031] Further, such as Figure 5 As shown, the auxiliary rest pool includes a pool box 19, and a soil cavity 20 is arranged inside the pool box 19 (that is, the outer shell of the cavity is made of soil), and five corresponding circular third entrances 21 are arranged on the right side of the soil cavity 20 and the front wall of the pool box 19, and five circular third exits 22 are arranged on the left top wall of the soil cavity 20, and sand and gravel are placed inside the soil cavity 20.

[0032] The auxiliary resting pool simulates a natural riverbed environment, provides a habitat close to the natural ecology for fish, and provides a clear and oxygen-rich swimming space for fish. Fish can easily enter the resting pool from the third entrance 21 on the right side, and the third exit 22 on the left side is the exit for them to leave the resting pool.

[0033] Fish enter the auxiliary resting pool through the third entrance 21, which is a hole-shaped structure that simulates the flow effect of natural water bodies. Gravel and soil are laid on the bottom of the resting pool, providing fish with a habitat close to the natural ecology and a clear and oxygen-rich swimming space. The third exit 22 on the upper left side is the exit for fish to leave the resting pool. This design not only ensures the free entry and exit of fish in the resting pool, but also effectively avoids crowding and confusion of fish.

[0034] The above are only implementation modes of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure made using the contents of the present invention's specification and drawings, directly or indirectly used in other related technical fields, are also within the patent protection scope of the present invention.

Claims

1. A vertical slot fishway with a vertical disk structure, characterized in that: The invention comprises a pool entrance, which is connected with a pool exit through a vertical spiral passage, a plurality of first entrances are arranged on the pool wall of the pool entrance, a plurality of first exits are arranged on the pool wall of the pool exit, the vertical spiral passage comprises a plurality of vertical spiral main channels, adjacent main channels are connected through spiral bends, the interior of the main channel is divided into a plurality of pool chambers through a plurality of first partitions, the pool chambers are interconnected, the interior of the spiral bend is divided into a lounge and an aisle through a second partition, the lounge and the aisle are interconnected.

2. The vertical slot fishway with a vertically raised structure as claimed in claim 1, characterized in that: The pool wall for entering the pool is provided with three first inlets, and the pool wall for exiting the pool is provided with three first outlets.

3. The vertical slot fishway with a vertically raised structure as claimed in claim 1 or 2, characterized in that: A plurality of flow promoters are arranged at the first inlet and the first outlet.

4. The vertical slot fishway with a vertically raised structure as claimed in claim 3, characterized in that: The flow promoter comprises a base, the base is connected to a disturber through a traction rope, and a flow rate regulating sensor is arranged on the disturber.

5. The vertical slot fishway with a vertically raised structure as claimed in claim 4, characterized in that: The base is made of concrete or stone, the traction rope is made of steel wire, and the disturber is made of light material.

6. The vertical slot fishway with a vertically raised structure as claimed in claim 1 or 2, characterized in that: The first partition includes a large partition unit and a small partition unit that are staggered with each other.

7. The vertical slot fishway with a vertically raised structure as claimed in claim 1 or 2, characterized in that: The rest room is provided with a main rest pool or an auxiliary rest pool. The main rest pool is used to provide a cave-dwelling ecological environment for fish, and the auxiliary rest pool is used to provide a natural riverbed environment for fish.

8. The vertical slot fishway with a vertically raised structure as claimed in claim 7, characterized in that: The main rest pool includes a pool box, a second inlet that runs through from top to bottom is arranged on the right side of the front wall of the pool box, a second outlet that extends from left to right is arranged on the upper left side of the front wall of the pool box, and sand, stones and aquatic plants are placed inside the pool box.

9. The vertical slot fishway with a vertically raised structure as claimed in claim 7, characterized in that: The auxiliary rest pool includes a pool box, a soil cavity is arranged inside the pool box, a corresponding number of circular third entrances are arranged on the right side of the soil cavity and the front wall of the pool box, a number of circular third exits are arranged on the left top wall of the soil cavity, and sand and gravel are placed inside the soil cavity.

10. The vertical slot fishway with a vertically raised structure as claimed in claim 1 or 2, characterized in that: The vertical spiral channel is made of reinforced concrete, the slope of the main channel on each floor is 2%-6.5%, and the spiral height is 4-7m.

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