CN212103955U - Fishway flow regulating pool structure - Google Patents
Fishway flow regulating pool structure Download PDFInfo
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- CN212103955U CN212103955U CN201922292573.7U CN201922292573U CN212103955U CN 212103955 U CN212103955 U CN 212103955U CN 201922292573 U CN201922292573 U CN 201922292573U CN 212103955 U CN212103955 U CN 212103955U
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- bottom plate
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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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Abstract
The utility model discloses a fishway flow control pond structure, the dam that aims at overcoming among the prior art crosses the fish facility and requires fishway delivery port gate to become the width of cloth according to the upper reaches water level and open and close, the operational mode is complicated, the management of being not convenient for, and delivery port figure is many, the weak point that the investment is high provides and reduces delivery port figure, the design implementation of being convenient for, reduce the investment, overflow excessive water volume through the overflow weir, reduce fishway side wall height, guarantee that the velocity satisfies the fishway flow control pond structure that fish moved the requirement in the fishway. The fishway flow regulating pool structure comprises a side wall, a bottom plate and a thin-wall weir, wherein the bottom plate is rectangular, the thin-wall weir is arranged at one side edge of the rectangular structure of the bottom plate, the side wall is arranged at the two side edges of the bottom plate adjacent to the thin-wall weir and the edge opposite to the thin-wall weir, and a regulating pool outlet and a regulating pool inlet are respectively arranged on the two side edges adjacent to the thin-wall weir.
Description
Technical Field
The utility model relates to a fish facility is crossed to the dam especially relates to a fishway crosses water flow control's structure.
Background
With the rapid development of water conservancy and hydropower, modern hydropower engineering must be harmonious with environment and ecology, and after a dam is built, migration or other activities of fishes may be stopped or damaged by a water turbine, so that the breeding of fish populations is affected. In order to protect the biodiversity of fish resources and rivers, the construction of dam fish-passing facilities is necessary. The fishway is a continuous ladder-shaped water tank type building, is suitable for various fishes, and is the most common fish passing facility at present.
Generally, the upstream operation water level of a dam is changed, in order to control the water depth of a fishway chamber and ensure that the flow speed in the chamber meets the requirement of fish migration, a plurality of water outlets with different bottom plate elevations are required to be arranged at the upstream, and the fishway operation is scheduled through opening and closing of a gate so as to adapt to the change of the upstream water level. The method requires the fishway water outlet gate to be opened and closed according to the upstream water level amplitude, the operation mode is complex, the management is inconvenient, the number of the water outlets is large, and the investment is high.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome the dam among the prior art and cross fish facility and require fishway delivery port gate to become the width of cloth according to the upper reaches water level and open and close, the operational mode is complicated, the management of being not convenient for, and delivery port figure is many, and the weak point that the investment is high provides and reduces delivery port figure, and the design of being convenient for is implemented, reduces the investment, overflows surplus water volume through the overflow weir, guarantees the fishway internal flow velocity and satisfies the fishway flow control pond structure that fish migration required.
The utility model discloses a fishway flow control pond structure, including side wall, bottom plate and thin wall weir, the bottom plate is horizontal rectangle, and a side edge of the rectangle structure of bottom plate sets up the thin wall weir, and bottom plate and the both sides edge adjacent to the thin wall weir and the edge relative with the thin wall weir are equipped with the side wall, be equipped with equalizing basin export and equalizing basin import on the both sides edge adjacent to the thin wall weir respectively.
Preferably, the side walls comprise a first side wall, a second side wall and a third side wall, the first side wall is arranged at one side edge of the bottom plate opposite to the thin-wall weir, the second side wall and the third side wall are respectively arranged at one side edge of the bottom plate adjacent to the thin-wall weir, one end of the second side wall close to the thin-wall weir is provided with an outlet of the regulating tank, and one end of the third side wall close to the first side wall is provided with an inlet of the regulating tank.
Preferably, the bottom elevation of the adjusting pond outlet is flush with the top elevation of the bottom plate, and the adjusting pond outlet is smoothly connected with the fishway bottom plate of the upstream outlet section.
Preferably, the bottom elevation of the adjusting pond inlet is higher than the top elevation of the bottom plate, and the bottom plate of the adjusting pond inlet is smoothly connected with the bottom plate of the fishway at the downstream inlet section.
Preferably, the top surface structure of the thin-wall weir is an inclined surface, and the edge of the top surface of the thin-wall weir close to one side of the bottom plate is higher than the edge of the top surface of the thin-wall weir far away from one side of the bottom plate.
Preferably, the discharge capacity of the thin-walled weir is calculated using the following formula:
wherein: q-flow (m 3/s);
Ce-a flow coefficient;
be-effective weir crest width, be ═ b + Kb; wherein Kb weir width correction value;
g-acceleration of gravity (9.81m/s 2);
he-effective weir crest head, he ═ h + Kh; wherein the Kh head correction value.
The flow discharge capacity of the thin-wall weir should meet the difference between the incoming flow of the outlet of the regulating reservoir and the outgoing flow of the inlet of the regulating reservoir, so that the stability of the water depth and the flow speed in the fishway at the upstream and downstream of the regulating reservoir is ensured, and the stability of the flow state of water flow in the regulating reservoir is ensured.
Preferably, the bottom plate, the side walls, the bottom plate and the thin-wall weir can adopt a concrete structure or an organic glass structure.
The utility model discloses a fishway flow control pond structure is when the in-service use, and upstream outlet section fishway water-logging passes through in the equalizing basin import gets into the equalizing basin, and unnecessary water passes through the thin wall weir discharge fishway of equalizing basin, and remaining water flows into downstream inlet section fishway pond indoor through the equalizing basin export, ensures the stability of depth of water and velocity of flow in the fishway of equalizing basin up and down stream, guarantees that the velocity of flow satisfies the fish migration requirement in the fishway.
Therefore, the utility model has the advantages that: (1) the number of fishway outlets is reduced, the fishway outlet is adaptive to the upstream water level change of a reservoir, and the flow in the fishway is adjusted, so that the fishway operation management is facilitated, and the engineering investment can be saved; (2) and the excess water is overflowed through the overflow weir, so that the water depth of the fishway is reduced, the height of the side wall is reduced, and the engineering investment is saved.
Drawings
Fig. 1 is a plan view of a fishway flow control tank structure of the utility model.
Fig. 2 is a sectional view taken at a-a of fig. 1.
Fig. 3 is a sectional view taken at B-B of fig. 1.
Fig. 4 is a sectional view at C-C of fig. 1.
In the figure: 1. a base plate; 201. a first side wall; 202. a second side wall; 203. a third side wall; 3. a thin-walled weir; 4. an inlet of the regulating tank; 5. and (4) an outlet of the adjusting tank.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the utility model discloses a fishway flow control pond structure, including side wall, bottom plate 1 and thin wall weir 3, bottom plate 1 is the rectangle, and a side edge of the rectangle structure of bottom plate 1 sets up thin wall weir 3, and bottom plate 1 is equipped with the side wall with 3 adjacent both sides edges of thin wall weir and the edge relative with thin wall weir 3, be equipped with equalizing basin export 5 and equalizing basin import 4 on the both sides edge adjacent with thin wall weir 3 respectively.
As shown in fig. 1, 2 and 3, the side walls include a first side wall 201, a second side wall 202 and a third side wall 203, the first side wall 201 is disposed on an edge of the bottom plate 1 opposite to the thin-walled weir 3, the second side wall 202 and the third side wall 203 are respectively disposed on an edge of the bottom plate 1 adjacent to the thin-walled weir 3, an outlet 5 of the regulation tank is disposed at one end of the second side wall 202 close to the thin-walled weir 3, and an inlet 4 of the regulation tank is disposed at one end of the third side wall 203 close to the first side wall 201.
The bottom elevation of the adjusting pool outlet 5 is flush with the top elevation of the bottom plate 1 and smoothly connected with the fishway bottom plate of the upstream outlet section. The bottom elevation of the adjusting tank inlet 4 is higher than the top elevation of the bottom plate 1, and the bottom plate of the adjusting tank inlet is smoothly connected with the bottom plate of the fishway at the downstream inlet section.
As shown in FIG. 4, the top surface of the thin-wall weir 3 is a slope, and one side edge of the top surface of the thin-wall weir 3 close to the bottom plate 1 is higher than one side edge of the top surface of the thin-wall weir 3 far from the bottom plate 1. The slope structure of the top surface of the thin-wall weir 3 can make the excessive water flow smoothly discharged along the top surface of the thin-wall weir and flow downwards.
The flow discharge capacity of the thin-wall weir is calculated by adopting the following formula:
wherein: q-flow (m 3/s);
Ce-a flow coefficient;
be-effective weir crest width, be ═ b + Kb; wherein Kb weir width correction value;
g-acceleration of gravity (9.81m/s 2);
he-effective weir crest head, he ═ h + Kh; wherein the Kh head correction value.
The flow discharge capacity of the thin-wall weir should meet the difference between the incoming flow of the outlet of the regulating reservoir and the outgoing flow of the inlet of the regulating reservoir, so that the stability of the water depth and the flow speed in the fishway at the upstream and downstream of the regulating reservoir is ensured, and the stability of the flow state of water flow in the regulating reservoir is ensured.
The bottom plate 1, the side walls, the bottom plate 1 and the thin-wall weir 3 can adopt a concrete structure or an organic glass structure.
The utility model discloses a fishway flow control pond structure is when the in-service use, and upstream outlet section fishway water-logging passes through in the equalizing basin import gets into the equalizing basin, and unnecessary water passes through the thin wall weir discharge fishway of equalizing basin, and remaining water flows into downstream inlet section fishway pond indoor through the equalizing basin export, ensures the stability of depth of water and velocity of flow in the fishway of equalizing basin up and down stream, guarantees that the velocity of flow satisfies the fish migration requirement in the fishway. The utility model reduces the number of the fishway water outlets, adapts to the water level change at the upstream of the reservoir, adjusts the flow in the fishway, facilitates the operation management of the fishway and saves the engineering investment; and the excess water is overflowed through the overflow weir, so that the water depth of the fishway is reduced, the height of the side wall is reduced, and the engineering investment is saved.
Claims (6)
1. The utility model provides a fishway flow control pond structure, characterized by, includes side wall, bottom plate (1) and thin wall weir (3), bottom plate (1) is horizontal rectangle structure, and a side edge of bottom plate (1) sets up thin wall weir (3), thin wall weir (3) adopt outside the excessive water in will adjusting the pond overflows the pond from the mode of overflow, bottom plate (1) and the both sides edge that thin wall weir (3) are adjacent and the edge relative with thin wall weir (3) are equipped with the side wall, be equipped with equalizing basin export (5) and equalizing basin import (4) on the both sides edge that is adjacent with thin wall weir (3) respectively.
2. The fishway flow regulating pond structure of claim 1, wherein the side walls comprise a first side wall (201), a second side wall (202) and a third side wall (203), the first side wall (201) is arranged at one side edge of the bottom plate (1) opposite to the thin-walled weir (3), the second side wall (202) and the third side wall (203) are respectively arranged at one side edge of the bottom plate (1) adjacent to the thin-walled weir (3), one end of the second side wall (202) close to the thin-walled weir (3) is provided with the regulating pond outlet (5), and one end of the third side wall (203) close to the first side wall (201) is provided with the regulating pond inlet (4).
3. The fishway flow regulating pond structure of claim 1, wherein the bottom elevation of the regulating pond outlet (5) is flush with the top elevation of the bottom plate (1) and smoothly engages with the fishway bottom plate of the upstream outlet section.
4. The fishway flow regulating pool structure of claim 1, wherein the bottom elevation of the regulating pool inlet (4) is higher than the top elevation of the bottom plate (1), and the bottom plate of the regulating pool inlet (4) is smoothly connected with the fishway bottom plate of the downstream inlet section.
5. The fishway flow regulating pond structure of claim 1, wherein the top surface of the thin-wall weir (3) is an inclined surface, and the edge of the top surface of the thin-wall weir (3) close to the bottom plate (1) is higher than the edge of the top surface of the thin-wall weir (3) far from the bottom plate (1).
6. The fishway flow regulating pond structure of claim 1, characterized in that the bottom plate (1), the side walls, the bottom plate (1) and the thin-walled weir (3) are made of concrete or organic glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922292573.7U CN212103955U (en) | 2019-12-19 | 2019-12-19 | Fishway flow regulating pool structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922292573.7U CN212103955U (en) | 2019-12-19 | 2019-12-19 | Fishway flow regulating pool structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212103955U true CN212103955U (en) | 2020-12-08 |
Family
ID=73623891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922292573.7U Active CN212103955U (en) | 2019-12-19 | 2019-12-19 | Fishway flow regulating pool structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212103955U (en) |
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2019
- 2019-12-19 CN CN201922292573.7U patent/CN212103955U/en active Active
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