CN217298828U - Fish collecting system for collecting fish by using tail water of hydropower station - Google Patents
Fish collecting system for collecting fish by using tail water of hydropower station Download PDFInfo
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- CN217298828U CN217298828U CN202121333527.8U CN202121333527U CN217298828U CN 217298828 U CN217298828 U CN 217298828U CN 202121333527 U CN202121333527 U CN 202121333527U CN 217298828 U CN217298828 U CN 217298828U
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Abstract
The utility model discloses an utilize fish gathering system of power station tail water fish gathering has solved high dam engineering fish of high-intensity high mountain gorge area and has crossed the dam transportation problem, has improved fish gathering efficiency. The fish collecting system comprises a fish collecting building, a top fish collecting platform, a diversion pier and a tower quilt backfill. The fish gathering building is divided into an upper part and a lower part, and the boundary elevation of the fish gathering building is not lower than the highest water level of tail water; the upper part is a closed tower system consisting of a connecting wall and a supporting column; the lower part is a fish passing channel formed by a connecting wall, a supporting column and an internal transition section. And fish collection box guide rails are installed on the steel plates embedded in the left and right side contact walls. The upstream and downstream flow-dividing piers are designed asymmetrically, and the flow state of tail water is improved to enhance the fish luring effect. The tower is backfilled and connected with the upper structure by using dowel bars, and the tower is extended to the top and also used as a traffic bridge. The top platform utilizes the bracket to expand the platform space, and the machine room is opened and closed to open and close the fish collecting device. The utility model discloses a fish gathering method that provides can be used for power station tail water export, has safe and reliable, and the technique is feasible, the convenient advantage of construction.
Description
Technical Field
The utility model relates to an utilize gathering fish system of power station tail water fish collection belongs to water conservancy and hydroelectric engineering technical field.
Background
Hydropower is a renewable clean energy source, has the advantages of no pollution, low operation cost and convenience for electric power peak regulation, and in recent years, China develops and constructs a large number of water conservancy and hydropower projects, develops benefits of flood control, discharge, shipping and the like, and simultaneously inevitably has non-negligible influence on the ecological environment, particularly damages the connectivity of rivers, blocks a migration channel of fishes, and has great influence on the migration and propagation of the migratory fishes.
At present, various fish passing facilities are mainly built at home and abroad to reduce the influence of engineering construction on the barrier of a migration channel, such as a fishway, a fish gate, a fish elevator and the like. The fishway has the main defects that the fishway is not suitable for a high-water-head dam, needs to be arranged in combination with a power station hub, has certain influence on the construction and operation of main engineering, and does not achieve ideal effects in terms of data analysis at home and abroad. The fish lock and the fish elevator have the defects of large construction investment, large design and construction difficulty, high maintenance cost and the like, and the application of the fish lock and the fish elevator is restricted by a plurality of factors. The facilities are generally arranged at a certain position on the shore or in a dam, but because the downward flow of the facilities is far lower than the flow of the tail water of power generation, the fishes are often attracted by the tail water of power generation and finally gathered near the tail water, so that the fish gathering efficiency of the fish passing facilities is low. Partial fish passing facilities improve the fish collecting efficiency by increasing the fish luring flow by using a water supplementing method of a water pump, however, the water supplementing flow is limited, the effect is not obvious, and in addition, the water supplementing can increase and decrease the energy consumption and the consumption flow, so that the influence on the engineering power generation benefit is large. In addition, large-scale hydraulic and hydroelectric engineering is often located in high mountain canyon areas, water flow is rapid, flow state is complex, terrain changes on river banks and river bottoms are severe, engineering environment is complex, and great difficulty is caused to construction and safe operation of fish collecting facilities. Therefore, how to improve fish collection efficiency and research a convenient, easy, efficient and safe fish collection facility and method is a problem to be solved urgently in the current engineering.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art's defect, provide an utilize collection fish system of power station tail water fish gathering, can be applicable to high mountain gorge area high water head hydropower station under the complicated river environment, improve migratory fish collection fish efficiency and collection fish system security, better protection fish. In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fish collecting system for collecting fish by using tail water of a hydropower station is characterized in that the fish collecting system is positioned at a tail water outlet of the hydropower station and mainly comprises a fish collecting building, a flow dividing pier, tower back backfill and a top fish collecting platform; a fish collecting device is arranged in the fish collecting building so as to lift the collected fish to the top of the fish collecting building;
the outlet and the inlet of the fishway are designed asymmetrically, so that the characteristic that the upstream and the downstream of water flow in the fishway are slow is ensured.
On the basis of adopting above-mentioned technical scheme, the utility model discloses still can adopt following further technical scheme, or to these further technical scheme combined use:
the fish gathering building is divided into an upper part and a lower part, and the elevation of the upper and lower boundaries is not lower than the highest water level of tail water.
The lower structure of the fish gathering building comprises a fish passing channel consisting of a tail water outlet bottom plate platform, a left side connecting wall, a right side connecting wall, supporting columns and an internal transition section.
In the substructure of the fish gathering building, steel plates are embedded on the inner sides of a left side connecting wall and a right side connecting wall, and lifting rails of the fish gathering device are mounted on the steel plates.
The upper structure of the fish gathering building comprises a closed tower system consisting of a left side connection wall, a right side connection wall, a support column, an upstream side connection wall and an upstream side connection wall.
The flow dividing piers are respectively positioned at the upper and lower reaches of the fish collecting building and connected with the support columns, the body shape of each flow dividing pier is formed by an arc and a straight line, the upper flow dividing pier is deviated to the inner side of the fish collecting building, the lower flow dividing pier is deviated to the outer side of the fish collecting building, and the flow dividing piers are designed asymmetrically, so that fish luring water flow is formed in the fish collecting channel.
The tower back backfill is connected with the upper part of the connection wall on one side of the backer body in the left connection wall and the right connection wall by using the dowel bars, and is connected with the top platform at the top to be also used as a top traffic bridge to be connected with an outfield.
The top fish gathering platform comprises a top platform, wherein the top platform is provided with a top bracket, an opening and closing machine room is arranged in the top platform, and the top bracket extends outwards along the periphery of the top platform.
The utility model discloses an advantage technique lies in:
(1) the utility model relates to a fish collecting system arranges in power station tail water export, and the easy tail water rivers attraction of migration fish has strengthened the fish collecting effect.
(2) The utility model relates to a fish gathering system utilizes the asymmetric distribution of optimal design to shunt the mound, produces urgent lower slow rivers in crossing the fish passageway, accords with the fish migration habit, changes in attracting fish, has improved fish gathering efficiency.
(3) The utility model relates to a fish gathering building structural design is reasonable, and the suitability is strong, backfills through the tower back and has strengthened structure reliability itself, has certain shock stability, is applicable to topography geological conditions such as various high mountain gorge high-intensity.
(4) The elevation of the boundary of the upper part and the lower part of the fish gathering building is not lower than the highest water level of tail water, so that the blockage to the flow of the tail water is reduced, and the fish gathering building has the advantages of improving the flow form of a tail water outlet and reducing the head loss.
(5) The main on-site manufacturing part of the system is mainly above the bracket platform, and the bracket platform is above the flood level, so that the structure of the fish collecting building is less influenced by rain flood, the construction period is not influenced by river flood, and the construction period can be effectively shortened.
(6) The top of the platform is cantilevered by the bracket to enlarge the upper space, and the tower back backfilling is also used as a transportation bridge to connect the outside of the field, so that the wide field space and smooth traffic of fish transportation in the construction and operation periods of the fish collecting system are ensured.
(7) The utility model relates to a fish gathering building main part is reinforced concrete structure, and the construction technology is mature, has convenient easy going, the characteristics of easily being under construction.
Drawings
Fig. 1 is the overall layout of the fish collecting system of the utility model.
Fig. 2 is a cross-sectional view of the lower part of the fish collecting building of the present invention.
Fig. 3 is a sectional view of the upper part of the fish collecting building of the present invention.
Reference is made to the attached drawings, 1-riverbed platform; 2-left side connecting wall; 3-right side connecting wall; 4-a support column; 5-an internal transition section; 6-upstream side connecting wall; 7-a downstream side tie-down wall; 8-an upstream flow-dividing pier; 9-downstream flow-dividing piers; 10-tower back backfilling; 11-top corbel; 12-opening and closing the machine room; 13-lifting tracks of the fish gathering device; 14-a dowel bar; 15-tail water outlet; 101-a top fish gathering platform; 102-fish gathering upstairs and downstairs boundary.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in figure 1, the utility model provides an utilize collection fish system of power station tail water collection fish is located power station tail water export, mainly includes collection fish building, reposition of redundant personnel mound, tower back of the body backfill 10, top collection fish platform 101.
The fish gathering building is divided into an upper part and a lower part, the elevation of the upper and lower boundaries is not lower than the highest water level of tail water, and the reference numeral 102 is a boundary part, namely the lower ends of an upstream side connecting wall 6 and a downstream side connecting wall 7; the lower part comprises a fish passing channel consisting of a riverbed platform 1, a left side connecting wall 2, a right side connecting wall 3, a supporting column 4 and an internal transition section 5.
The upper part comprises a closed tower system consisting of a left side connecting wall 2, a right side connecting wall 3, a support column 4, an upstream side connecting wall 6 and a downstream side connecting wall 7.
Wherein the upper part of the upstream side connecting wall 6 and the lower part of the downstream side connecting wall 7 extend to the top platform, the lower part of the downstream side connecting wall 7 extends to the upper and lower boundary of the fish gathering building, and the bottom elevations of the upstream side connecting wall 6 and the downstream side connecting wall 7 are not lower than the highest water level of tail water so as not to block the flow of the tail water.
The left side connecting wall 2, the right side connecting wall 3 and the upper part extend to the top fish collecting platform, the lower part extends to the riverbed platform 1, and tail water flow is separated to form a fish passing channel.
Pre-buried steel sheet in the middle of left side antithetical couplet wall 2, the right side antithetical couplet wall 3, installation fish gathering device's promotion track 13 on the steel sheet for promote the fish gathering device to top platform 101 in order to carry out the fish transportation, the fish gathering device can adopt the import can be opened and confined box with a net. The supporting columns 4 are arranged on two sides of the lower left side connecting wall 2 and the right side connecting wall 3, the internal transition sections 5 are arranged among the lower left side connecting wall 2, the right side connecting wall 3 and the supporting columns 4, the upper portions of the internal transition sections extend to the boundary part 102 of the lower portion of the fish gathering building, and the lower portions of the internal transition sections extend to the riverbed platform 1, so that the internal water flow form of the fish gathering channel can be improved, and water flow is smooth.
The flow dividing piers are respectively positioned at the upstream and downstream of the fish collecting building and connected with the support columns 4, and the body shape of each flow dividing pier is formed by an arc and a straight line. Upstream shunting pier 8 is inboard to the fish gathering building, and it is less to make to cross fish passageway water flow inlet, and downstream shunting pier 9 makes to cross fish passageway inlet water flow great to the fish gathering building outside, is asymmetric design between fishway export and the import, guarantees to cross the slow characteristics in the urgent low reaches of fish passageway upper reaches in the fish passageway, and the reinforcing lures the fish effect, and guarantees that the rivers are whole smooth-going.
The tower back backfill 10 is connected with the upper part of the left connecting wall 2 by a dowel bar 14, plays a supporting role, is connected with the top fish collecting platform 101 at the top and is also used as a top traffic bridge to be connected with an outfield. The backfill width ensures top traffic needs.
The top fish collecting platform comprises a top platform 101, the top platform 101 is provided with a top bracket 11, and an opening and closing machine room 12 is arranged in the top platform 101. Top bracket 11 is overhanging along top platform 101 all around, and overhanging length guarantees that top platform building and top platform space make things convenient for fish to transport, can carry out opening and close of fish gathering device through opening and close computer lab 12.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (8)
1. A fish collecting system for collecting fish by using tail water of a hydropower station is characterized in that the fish collecting system is positioned at a tail water outlet of the hydropower station and mainly comprises a fish collecting building, a flow dividing pier, tower back backfill and a top fish collecting platform; arranging a fish collecting device in the fish collecting building so as to lift the collected fish to the top of the fish collecting building;
the outlet and the inlet of the fishway are designed asymmetrically, so that the characteristic that the upstream of the water flow in the fish passage is rapid and the downstream is slow is guaranteed.
2. The fish gathering system using the tail water of the hydropower station as claimed in claim 1, wherein the fish gathering building is divided into an upper part and a lower part, and the elevation of the upper and lower boundaries is not lower than the highest level of the tail water.
3. The fish collecting system for collecting fish by using tail water of hydropower station as claimed in claim 2, wherein the lower structure of the fish collecting building comprises a fish passing channel consisting of a tail water outlet bottom plate platform, a left side connecting wall, a right side connecting wall, a support column and an internal transition section.
4. The fish collecting system for collecting fish by using tail water of hydropower station as claimed in claim 2, wherein steel plates are embedded in the lower structure of the fish collecting building, and the steel plates are provided with lifting rails of the fish collecting device.
5. The fish collecting system for collecting fish by using tail water of hydropower station as claimed in claim 2, wherein the upper structure of the fish collecting building comprises a closed tower system consisting of a left side connecting wall, a right side connecting wall, a support pillar, an upstream side connecting wall and an upstream side connecting wall.
6. The fish collecting system for collecting fish by using tail water of hydropower station as claimed in claim 5, wherein the flow dividing piers are respectively located at the upstream and downstream of the fish collecting building, are connected with the supporting columns and are formed by circular arcs and straight lines, the upstream flow dividing pier is deviated to the inner side of the fish collecting building, the downstream flow dividing pier is deviated to the outer side of the fish collecting building, and the asymmetrical design ensures that fish luring water flow is formed in the fish collecting channel.
7. The fish collecting system for collecting fish by using tail water of a hydropower station as claimed in claim 1, wherein the tower back backfill is connected with the upper parts of the mountain side connecting walls in the left connecting wall and the right connecting wall by using a dowel, and is connected with the top platform at the top to serve as a top traffic bridge to be connected with an outfield.
8. The fish collecting system for collecting fish by using tail water of hydropower station as claimed in claim 7, wherein the top fish collecting platform comprises the top platform, the top platform is provided with a top bracket, an opening and closing machine room is arranged in the top platform, and the top bracket extends outwards along the periphery of the top platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121333527.8U CN217298828U (en) | 2021-06-16 | 2021-06-16 | Fish collecting system for collecting fish by using tail water of hydropower station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121333527.8U CN217298828U (en) | 2021-06-16 | 2021-06-16 | Fish collecting system for collecting fish by using tail water of hydropower station |
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| CN217298828U true CN217298828U (en) | 2022-08-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115613510A (en) * | 2022-09-28 | 2023-01-17 | 中国电建集团贵阳勘测设计研究院有限公司 | System for attracting fish and collecting fish to rise in valley river section |
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2021
- 2021-06-16 CN CN202121333527.8U patent/CN217298828U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115613510A (en) * | 2022-09-28 | 2023-01-17 | 中国电建集团贵阳勘测设计研究院有限公司 | System for attracting fish and collecting fish to rise in valley river section |
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