CN219137599U - Unilateral vertical seam type fishway suitable for fishes with different swimming speeds - Google Patents

Abstract

The utility model discloses a single-side vertical slit type fishway suitable for fishes with different swimming speeds, which comprises a bottom plate and two side walls, wherein a plurality of pairs of long partition plates and a plurality of pairs of short partition plates are arranged between the two side walls, the fishway is divided into a plurality of fishway units with single-side vertical slits, which are sequentially communicated, a group of first partition piers surrounding a water inlet are arranged in each fishway unit and adjacent to the water inlet, a second sill connected with the two partition piers is arranged between the two adjacent partition piers, a first sill is also arranged between the first partition piers adjacent to the long partition plates and the long partition plates, and the other group of second partition piers are also arranged outside a group of first partition piers adjacent to the water inlet. The utility model can effectively reduce the flow velocity of the bottom layer of the fishway, realize the diversity of the flow velocity distribution of different water layers and ensure that fishes with different swimming speeds can pass through the fishway.

Description

Unilateral vertical seam type fishway suitable for fishes with different swimming speeds

Technical Field

The utility model belongs to the field of fish passing in water conservancy and hydropower engineering, and particularly relates to a single-side vertical joint type fishway suitable for fishes with different swimming speeds.

Background

The river channel is cut off by the construction of the river blocking gate dam in the water conservancy and hydropower engineering, so that the germplasm communication and migration channels of fishes are blocked, and the inbreeding and genetic degradation of fish populations are caused. The fishway is an effective fish-passing type which is most commonly applied, and has an important effect on slowing down the blocking influence of a water conservancy and hydropower engineering barrage on fish. The fishway can be divided into a bionic type, a partition plate type, a groove type, a special structural type and the like according to the structural type. The partition plate type fishway can be divided into a vertical seam type fishway, an overflow weir type fishway, a submerged orifice type fishway and the like according to partition plate types, wherein the vertical seam type fishway has relatively good adaptability to flow and water level fluctuation and fishes inhabiting different water layers, and is most widely applied. However, the vertical seam type fishway has a monotonous structure, so that the flow velocity at the vertical seam is large and single, and the fishway is not suitable for fish with small swimming speed to pass through. Therefore, rectifying measures are necessary to improve the vertical joints of the fishway and the flow field in the water pool, and the diversity of the distribution of the flow velocity in the vertical and horizontal directions is increased, so that the adaptability of the vertical joint type fishway to fishes with different swimming speeds is improved, and the fish passing efficiency is improved.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a single-side vertical seam type fishway suitable for fishes with different swimming speeds, and has the advantages of being suitable for fishes with different swimming speeds, effectively shortening the length of the fishway and the like.

In order to solve the technical problems, the utility model adopts the following technical scheme: a single-side vertical seam type fishway structure suitable for fishes with different swimming speeds comprises a bottom plate and two side walls, wherein a plurality of pairs of long partition plates and a plurality of pairs of short partition plates are arranged between the two side walls, the fishway is divided into a plurality of fishway units with single-side vertical seams, which are communicated in sequence, a group of first partition plates surrounding a water inlet are arranged in each fishway unit and adjacent to the water inlet, a second sill connected with the two partition plates is arranged between the two adjacent partition plates, a first sill is also arranged between the first partition plates adjacent to the long partition plates and the long partition plates, and another group of second partition plates are further arranged outside a group of first partition plates adjacent to the water inlet.

The number and arrangement of the first piers are consistent with those of the second piers.

The number of the first piers and the second piers in the same fishway unit is 2, and the first piers and the second piers are arranged in a diamond staggered mode.

The long partition boards are located on one side wall of the fishway, the short partition boards are located on the other side wall of the fishway, and the long partition boards and the short partition boards are arranged in a staggered mode.

The first barrier rib and the second barrier rib are cylinders, the diameter of each cylinder is 200-400 mm, and the height of each cylinder is 200-400 mm.

The width of the first sill is the same as the diameter of the cylinder, the width of the second sill is smaller than the diameter of the cylinder, and the heights of the first sill and the second sill are 100-200 mm.

The beneficial effects of the utility model are as follows: the vertical seam type fishway structure reduces the flow velocity of water at the bottom layer of the fishway by arranging the columns and the ridges in the fishway pool, improves the space distribution diversity of the water distribution in the pool, meets the requirements of fishes at different swimming speeds, ensures that the fishway is applicable to fishes at different swimming speeds in a wider range, and can effectively improve the fish passing efficiency of the fishway.

Drawings

FIG. 1 is a schematic top view of a single-sided vertical seam fishway accommodating fish of different swimming speeds;

FIG. 2 is a schematic axial sectional structure of a single-side vertical slit type fishway adapting to fishes with different swimming speeds;

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, the unilateral vertical slit type fishway structure suitable for fishes with different swimming speeds comprises a bottom plate 1 and two side walls 2, wherein a plurality of pairs of long partition plates 3 and a plurality of pairs of short partition plates 4 are arranged between the two side walls 2, the fishway is divided into a plurality of fishway units 10 with unilateral vertical slits which are communicated in sequence, a group of first partition plates 5 surrounding a water inlet are arranged in each fishway unit 10 and adjacent to the water inlet, a second sill 8 connected with the two partition plates is arranged between the two adjacent partition plates, a first sill 7 is also arranged between the first partition plates 5 adjacent to the long partition plates 3, and the other group of second partition plates 6 are also arranged outside the group of first partition plates 5 adjacent to the water inlet.

Preferably, the number and arrangement of the first and second spacers 5 and 6 are identical.

Preferably, the number of the first piers 5 and the second piers 6 in the same fishway unit 10 is 2, and the two piers are arranged in a diamond staggered manner.

Preferably, the long partition plates 3 are located on one side wall 2 of the fishway, the short partition plates 4 are located on the other side wall 2 of the fishway, and the long partition plates 3 and the short partition plates 4 are arranged in a staggered mode.

Preferably, the first barrier rib 5 and the second barrier rib 6 are cylinders, the diameter of each cylinder is 200 mm-400 mm, and the height of each cylinder is 200 mm-400 mm.

Preferably, the width of the first sill 7 is the same as the diameter of the cylinder, the width of the second sill 8 is smaller than the diameter of the cylinder, and the heights of the first and second sills are 100-200 mm.

In the embodiment, the single-side vertical seam type fishway, the bottom plate 1, the side walls 2 on two sides, the long partition plate 3 and the short partition plate 4 are all formed by concrete pouring; the gradient of the bottom plate 1 is 2%.

The fishway is divided into a plurality of fishway units 10 by a plurality of long partition plates 3 and short partition plates 4 which are arranged at intervals, the net length of each fishway pool is 2500mm, the net width is 2000mm, and the net height is 2000mm.

The long partition plates 3 and the short partition plates 4 are arranged in a staggered manner relatively, the width of the long partition plates 3 is 1346mm, the width of the short partition plates 4 is 500mm, the height of each short partition plate is 2000mm, the width of a vertical seam formed between the long partition plates 3 and the short partition plates 4 is 400mm, the vertical distance between the adjacent long partition plates 3 and the adjacent short partition plates 4 along the length direction of the bottom plate is 200mm, and the vertical distance along the width direction of the bottom plate is 154mm.

The bottom plate of each fishway pool is provided with 4 cylindrical spacers 5, 6 and 2 bottom ridges, so that the purpose of reducing the flow velocity of bottom water is achieved, wherein the 4 cylindrical spacers 5, 6 are arranged in a diamond staggered mode, the diameter of a single spacer is 300mm, the height of the single spacer is 400mm, the vertical distance between the center of the first spacer 5 and the first spacer 5 is 550mm, the vertical distance between the first spacer 5 and the side wall of the long partition plate is 1050mm, the vertical distance between the first spacer 5 and the side wall of the short partition plate 4 is 950mm, and the length of the central connecting line of two diagonally arranged spacers is 800mm. The first piers 5 are connected with the long partition plate 3 through first sill 7, the two first piers 5 are connected with each other through second sill 8, the width of the first sill 7 connected with the long partition plate 3 is 300mm, the width of the second sill 8 between the two first piers 5 is 220mm, and the height is 200mm.

In summary, the design of the spacer pier and the sill can effectively reduce the flow velocity of the bottom layer, realize the diversity of the flow velocity distribution of different water layers and ensure that fishes with different swimming speeds can pass through the fishway. Meanwhile, the way of reducing the gradient of the bottom plate can be avoided to ensure that the fish with the weakest swimming capacity passes through the fishway, and the length of the fishway and the engineering investment can not be increased. After the design of the block and the sill is adopted, the slope of the bottom plate is not required to be reduced when the fish with the weakest swimming capability passes through the fishway, and the increase of engineering investment caused by the increase of the fishway length is avoided.

The above-described embodiments are only for illustrating the technical spirit and features of the present utility model, and it is intended to enable those skilled in the art to understand the content of the present utility model and to implement it accordingly, and the scope of the present utility model is not limited to the embodiments, i.e. equivalent changes or modifications to the spirit of the present utility model are still within the scope of the present utility model.

Claims (6)

1. The utility model provides a adapt to unilateral perpendicular vertical joint formula fishway of different swimming fishes, including bottom plate (1) and both sides side wall (2), be provided with many pairs of long baffles (3) and many pairs of short baffles (4) between both sides side wall (2), cut apart the fishway into a plurality of fishway units (10) that have the unilateral perpendicular vertical joint that communicate in proper order, a serial communication port, be provided with a set of first mounds (5) around the water inlet in every fishway unit (10) adjacent water inlet department, be provided with between two adjacent mounds and connect second sill (8) of two mounds, also be provided with first sill (7) between first mounds (5) and long baffles (3) adjacent long baffles (3), still set up another set of second mounds (6) in the outside of a set of first mounds (5) adjacent water inlet department.

2. Single-sided vertical seam fishway adapted to fish of different swimming speeds as claimed in claim 1, characterized in that the number and arrangement of the first and second spacers (5, 6) are identical.

3. The unilateral vertical joint type fishway of claim 2, wherein the number of the first spacers (5) and the second spacers (6) in the same fishway unit (10) is 2, and the first spacers and the second spacers are arranged in a diamond staggered manner.

4. The unilateral vertical joint type fishway adapting to fishes with different swimming speeds according to claim 1, wherein a plurality of long partition plates (3) are positioned on one side wall (2) of the fishway, a plurality of short partition plates (4) are positioned on the other side wall (2) of the fishway, and the long partition plates (3) and the short partition plates (4) are arranged in a staggered manner.

5. The unilateral vertical joint type fishway of claim 1, wherein the first barrier (5) and the second barrier (6) are cylinders with the diameter of 200 mm-400 mm and the height of 200 mm-400 mm.

6. The unilateral vertical joint type fishway of claim 5, wherein the width of the first sill (7) is the same as the diameter of the cylinder, the width of the second sill (8) is smaller than the diameter of the cylinder, and the heights of the two sills are 100-200 mm.

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