CN217378806U - Fish passing system for realizing multiple ecological benefits - Google Patents
Fish passing system for realizing multiple ecological benefits Download PDFInfo
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- CN217378806U CN217378806U CN202220622762.5U CN202220622762U CN217378806U CN 217378806 U CN217378806 U CN 217378806U CN 202220622762 U CN202220622762 U CN 202220622762U CN 217378806 U CN217378806 U CN 217378806U
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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
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Abstract
The utility model discloses a realize multiple ecological benefits's fish system of crossing. The utility model changes the traditional fishway into two structures of a fish collecting system and a fish passing system, and the utility model arranges the spray pipe which can adjust the flow speed and flow on the water collecting tank of the fish collecting system, thereby improving the survival rate of fishes near the fish inlet by taking the surface water at the upstream of the dam and ensuring the requirements of the lower drainage ecological flow at the downstream of the dam; the short fishway is used for trapping fishes to enter a water collecting pool and the short fishway, and the short fishway adapts to the environment in the fishway; set up the collection fish case that takes the slide rail that can go upward and descend on long fishway, further improved the efficiency that the shoal of fish transported, reduced a large amount of time that fish went upward to spend down in traditional fixed fishway greatly.
Description
Technical Field
The utility model relates to a water conservancy water and electricity ecological protection technical field, especially a fish system of crossing that realizes multiple ecological benefits.
Background
The fish passing facility is a mandatory ecological protection measure provided by relevant national policies for river blocking and dam building engineering, and particularly becomes one of important indexes for examining and approving the water conservancy and hydropower engineering. The fishway is one of the main types of fish passing facilities, and is generally applied to medium and low water head dams, such as Guangxi Changzhou fishways, large river pillow dam first-level fishways and the like, and good fish passing effects are achieved; in addition, some high dams are built into the vertical seam type fishway and have good operation effect. The vertical seam fishway is one of the pool fishways, and is characterized in that a rectangular channel with an inclined slope is divided into a first-level pool by a series of baffles at regular intervals, water flows from a first-level pool chamber to a next-level pool chamber through vertical seams on each baffle, and fishes can overcome and adapt to water head difference and hydraulic conditions in the fishway pool chambers to achieve the purpose of going up and crossing a dam.
The existing vertical seam type fishway is basically arranged by penetrating a dam through a fixed concrete structure, and the key links lie in the selection of an inlet and an outlet of the fishway, and the adaptability of the specification of a fishway chamber and the ecological learning performance of fish.
The related patents of the improved fishway structure mainly aim at the aspects of fishway inlets, pool chambers, clapboards and the like: for example, the invention patent with the publication number of CN103437333A discloses a spiral ascending pool type fishway, which is beneficial to the upward tracing of fishes by building a vertical upward ring column type structure and spirally arranging the pool type fishway along the outer wall or the inner wall of the ring column type structure according to the calculated gradient, thereby reducing the water head difference. Still like the utility model with publication number CN205804299U discloses a "take down-hole formula fishway structure of standing seam formula, arrange the down-hole on the baffle of standing seam formula fishway and overflow, the water deflector adjusts the flow state, makes rivers follow the narrow baffle limit along leaking down along the basin limit wall after the last level of pool room perps gets into, has the slow current district, makes through perps, water deflector, down-the-hole and lets the rivers of leaking satisfy the requirement that the fish traced to upward.
Above patent is mainly reformed transform fishway import, pond room, baffle isotructure, reaches the purpose that promotes the fishway and cross the fish effect. Through research, the fishway is integrally split into two structures of a fish collecting system and a fish passing system and is designed independently, and multiple ecological benefits of high-efficiency fish passing, long-term ecological flow discharging guarantee, low-temperature water discharging influence of an upstream reservoir and the like can be realized by laying a discharging flow pipe to a water collecting pool and designing a fish luring spray pipe of the water collecting pool.
Disclosure of Invention
An object of the utility model is to provide a realize multiple ecological benefits's fish system of crossing. The utility model discloses become the fish gathering system with the whole split of fishway and cross two big structures of fish system, wherein the fish gathering system is including luring fish spray tube, catch basin, short fishway, crosses the fish system for having the orbital fish way that slides of side direction, let out flow pipeline and upper reaches intake (crossing fish system export) etc. realize promoting luring fish efficiency, transport fish efficiency, guarantee lets out ecological flow down for a long time to slow down the multiple ecological benefits of low-temperature water to crossing dam fish adverse effect through taking top layer water.
The technical scheme of the utility model: a fish passing system for realizing multiple ecological benefits comprises a fish passing system and a fish collecting system arranged at the downstream of a dam; the fish collecting system comprises a water collecting tank, and the water collecting tank is connected with a short fishway; the fish passing system comprises a long fishway, one end of the long fishway is connected with the short fishway, the other end of the long fishway is provided with a fish passing system outlet, and the fish passing system outlet is arranged at the upstream of the dam.
In the fish passing system for realizing multiple ecological benefits, the water collecting tank is connected with the ecological flow and fish luring spray pipe.
In the fish passing system for realizing multiple ecological benefits, the bottom of the long fishway is provided with a lower long fishway discharge pipeline; one end of the short fishway, which is connected with the water collecting tank, is an inlet of the short fishway, and the bottom of the short fishway is provided with a discharge pipeline; the lower flow discharge pipeline of the long fishway is connected with the flow discharge pipeline, and the flow discharge pipeline is connected with the water collecting tank.
In the fish system of crossing that aforementioned realization multiple ecological benefit, long fishway includes long fishway bottom plate and controls the fishway side wall that sets up, and fishway side wall inboard is through long fishway side rail connection collection fish case.
In the foregoing fish system of crossing that realizes multiple ecological benefits, short fishway includes short fishway pond room, and the inside left and right sides in short fishway pond room all is equipped with short fishway baffle.
Advantageous effects
According to the current evaluation requirement of the environmental impact of the hydraulic and hydroelectric engineering, the ecological flow facility of the sluicing and the fish passing facility are considered in principle in the hydraulic and hydroelectric engineering, and for the reservoir with an obvious water temperature layered structure, the research of the water temperature impact mitigation measures, such as a layered water taking facility, a stoplog door water taking facility and the like, is also required to be developed. The common ecological flow discharging facilities comprise a baseload power generation plant, an ecological water discharging hole, an ecological water discharging pipe, an ecological small unit and the like.
The utility model discloses a reform transform traditional fishway into two major structures of fish gathering system and fish system, the utility model discloses set up the spray tube of adjustable velocity of flow, flow on the catch basin of fish gathering system, can get into the water near the catch basin after taking dam upstream surface layer water to let down through let down the flow pipe, and then improve the survival rate of fish near the catch basin, ensured the dam downstream let down ecological flow requirement again; the short fishway is used for trapping fishes to enter the channel, and the short fishway adapts to the environment in the fishway; set up the collection fish case that takes the slide rail that can go upward and descend on long fishway, further improved the efficiency that the shoal of fish transported, reduced a large amount of time that fish went upward to spend down in traditional fixed fishway greatly.
The utility model provides a fish gathering system has improved attracting efficiency and the transport efficiency of fish with crossing the fish system greatly to compromise the multiple ecological benefits that ecological flow released and slowed down the adverse effect of low temperature water, had better application prospect to the ecological protection of water conservancy water and electricity engineering.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural diagram of the present invention; (the arrow in the figure indicates the direction of water flow)
FIG. 2 is a schematic view of the structure of a short fishway;
fig. 3 is a schematic structural view of a long fishway.
The labels in the figures are: 1-short fishway, 2-long fishway, 3-water collecting tank, 4-long fishway lower discharge flow pipeline, 5-ecological flow and fish luring spray pipe, 6-fishway side wall, 7-long fishway side rail, 8-long fishway bottom plate, 9-fish collecting box, 10-short fishway partition plate, 11-short fishway bottom plate, 12-short fishway tank chamber, 13-short fishway lower discharge flow pipeline, 14-fish passing system outlet, 15-dam, 16-short fishway inlet and 17-water collecting tank fish inlet.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "coupled" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Examples are given. A fish passing system for realizing multiple ecological benefits is formed as shown in figures 1-3 and comprises a fish passing system and a fish collecting system arranged at the downstream of a dam 15; the fish collecting system comprises a water collecting tank 3, and the water collecting tank 3 is connected with a short fishway 1; the fish passing system comprises a long fishway 2, one end of the long fishway 2 is connected with the short fishway 1, the other end of the long fishway is provided with a fish passing system outlet 14, and the fish passing system outlet 14 is arranged at the upstream of the dam 15.
The fish passing system outlet 14 is positioned in a reservoir area at the tail end of the upstream of the long fishway, a water taking gate is arranged on the fish passing system outlet 14, and the opening degree of the gate is adjusted according to the change of the water level of the reservoir area so as to ensure that the surface water of the reservoir area is taken.
The water collecting tank 3 is connected with an ecological flow and fish luring spray pipe 5. A plurality of ecological flow and fish luring spray pipes 5 are arranged outside the water collecting tank 3, a valve is arranged on each ecological flow and fish luring spray pipe 5, and the water spraying flow and the flow speed of the spray pipes can be adjusted. The height of the ecological flow and fish luring spray pipe 5 is higher than the operating water level below the dam 15 so as to prevent the water flow of the river channel below the dam from pouring into the water collecting tank 3; the fish inlet 17 of the water collecting tank is connected with the running water level under the dam 15, so that downstream fishes enter the water collecting tank and are provided with inlets for upstream tracing through the short fishway and the long fishway.
The bottom of the long fishway 2 is provided with a lower long fishway discharge pipeline 4; one end of the short fishway 1, which is connected with the water collecting tank 3, is a short fishway inlet 16, and the bottom of the short fishway 1 is provided with a short fishway lower discharge pipeline 13; the long fishway lower discharge pipeline 4 is connected with the short fishway lower discharge pipeline 13, and the short fishway lower discharge pipeline 13 is connected with the water collecting tank 3.
The water collecting tank 3 is a round water storage structure, and an internal water source is mainly taken from surface water of an upstream reservoir. The surface water of the upstream reservoir enters the water collecting tank 3 through the long fishway lower discharge pipeline 4 and the short fishway lower discharge pipeline 13, and the water in the water collecting tank 3 is separated from the water body at the downstream of the dam 15.
The long fishway 2 comprises a long fishway bottom plate 8 and fishway side walls 6 arranged on the left and right sides, and the inner sides of the fishway side walls 6 are connected with a fish collection box 9 through long fishway side rails 7.
Cross the fish system and indicate long fishway 2 most low reaches section and short fishway 1 most upstream section to link up, long fishway 2 provides the transportation space of strideing across between the dam upper and lower reaches for collection fish box 9, and collection fish box 9 is the box of approximate cuboid, and both sides are provided with a long fishway siding track 7 respectively, and collection fish box 9 inlays in the middle of two slide rails, drives collection fish box through power station electric system and realizes going upward or descending gliding activity in long fishway 2. The height of the long fishway bottom plate 8 is the same as that of the short fishway bottom plate 11, so that the long fishway and the short fishway are connected, and the flow discharge pipeline 4 under the long fishway is connected with the flow discharge pipeline 13 under the short fishway.
The utility model discloses an operation process does:
firstly, the opening degree of a gate of an outlet 14 of a fish passing system is adjusted, surface water in a reservoir area is taken, long drainage flow enters a collecting pond 3 along a lower drainage flow pipeline 4 of a long fishway and a lower drainage flow pipeline 13 of a short fishway for storage, different ecological flows possibly around the collecting pond 3 can be gathered outside a fish inducing spray pipe 5 due to variable fish gathering conditions, a power station manager can adjust the drainage flow and the flow speed of each spray pipe according to the fish gathering conditions to attract fishes to gather to an inlet of the short fishway, and the water temperature of a water body drained from the collecting pond is closer to the requirement of the fishes on natural water because the surface water in an upstream reservoir area is taken, so that the adverse effect of low-temperature water drained from hydraulic and hydro-electrical engineering on downstream fishes is overcome;
secondly, the shoal of fish is sucked by the drainage under the ecological flow tube, enters the collecting tank along the fish inlet 17 of the collecting tank and is adapted for a short time. The shoal enters the short fishway 1 along the short fishway inlet 16 and then enters the fish collecting box 9 in the long fishway along the short fishway;
thirdly, after the fish in the fish collection box 9 is induced to collect a certain amount of fish, closing a connecting port between the fish collection box 9 and the short fishway 1, and controlling the fish collection box 9 to slide upstream along side rails 7 on two sides in the long fishway 2 through an electric system until the fish collection box 9 is conveyed to an outlet of the upstream long fishway 2;
and fourthly, putting the fish in the fish collection box 9 into a reservoir area to complete the fish passing process of the whole fish passing system.
The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present application and its concept within the technical scope of the present application, and shall be covered by the scope of the present application.
Claims (5)
1. A fish passing system for realizing multiple ecological benefits comprises a dam (15), and is characterized in that: comprises a fish passing system and a fish collecting system arranged at the downstream of a dam (15); the fish collecting system comprises a water collecting tank (3), wherein the water collecting tank (3) is connected with a short fishway (1); the fish passing system comprises a long fishway (2), one end of the long fishway (2) is connected with the short fishway (1), the other end of the long fishway is provided with a fish passing system outlet (14), and the fish passing system outlet (14) is arranged on the upstream of the dam (15).
2. The multi-ecological fish-passing system according to claim 1, wherein: the water collecting tank (3) is connected with an ecological flow and fish luring spray pipe (5).
3. The multi-ecological fish-passing system according to claim 2, wherein: a lower long fishway discharge pipeline (4) is arranged at the bottom of the long fishway (2); one end of the short fishway (1) connected with the water collecting tank (3) is a short fishway inlet (16), and the bottom of the short fishway (1) is provided with a flow discharge pipeline (13); the lower long fishway flow discharge pipeline (4) is connected with a flow discharge pipeline (13), and the flow discharge pipeline (13) is connected with the water collecting tank (3).
4. The multi-ecological-benefit fish-passing system according to claim 1, wherein: long fishway (2) include long fishway bottom plate (8) and fishway side wall (6) of controlling the setting, and fish collection case (9) is connected through overlength fishway side rail (7) to fishway side wall (6) inboard.
5. The multi-ecological fish-passing system according to claim 1, wherein: short fishway (1) is including short fishway pond room (12), and the inside left and right sides in short fishway pond room (12) all is equipped with short fishway baffle (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220622762.5U CN217378806U (en) | 2022-03-21 | 2022-03-21 | Fish passing system for realizing multiple ecological benefits |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220622762.5U CN217378806U (en) | 2022-03-21 | 2022-03-21 | Fish passing system for realizing multiple ecological benefits |
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| CN217378806U true CN217378806U (en) | 2022-09-06 |
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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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- 2022-03-21 CN CN202220622762.5U patent/CN217378806U/en active Active
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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