CN108086262B - Fish passing system for hydraulic engineering of closure dam - Google Patents
Fish passing system for hydraulic engineering of closure dam Download PDFInfo
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- CN108086262B CN108086262B CN201711207654.1A CN201711207654A CN108086262B CN 108086262 B CN108086262 B CN 108086262B CN 201711207654 A CN201711207654 A CN 201711207654A CN 108086262 B CN108086262 B CN 108086262B
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- 241000251468 Actinopterygii Species 0.000 claims abstract description 228
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 151
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 43
- 230000005012 migration Effects 0.000 claims abstract description 24
- 238000013508 migration Methods 0.000 claims abstract description 24
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000003860 storage Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001617 migratory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 238000009412 basement excavation Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/08—Fish passes or other means providing for migration of fish; Passages for rafts or boats
- E02B8/085—Devices allowing fish migration, e.g. fish traps
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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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- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a fish passing system, in particular discloses a fish passing system for a cut-off dam hydraulic engineering, and belongs to the technical field of design and construction of hydraulic and hydroelectric engineering buildings. The fish passing system is stable in operation, suitable for the water engineering of the intercepting dam with small water flow, shallow water level in a reservoir area and relatively small water storage capacity. The fish passing system comprises a intercepting retaining dam, the fish passing system further comprises a fish trapping and capturing mechanism and a conveying mechanism, wherein the migration fish swarm located in a river channel at the downstream side of the intercepting retaining dam is trapped and collected by ecological water introduced by the fish trapping and capturing mechanism, and the migration fish swarm after trapped and collected is conveyed into the river channel at the upstream side of the intercepting retaining dam by the conveying mechanism.
Description
Technical Field
The invention relates to a fish passing system, in particular to a fish passing system for a cut-off dam hydraulic engineering, and belongs to the technical field of design and construction of hydraulic and hydroelectric engineering buildings.
Background
The fishway is a channel for fish migration. In popular language, some fish have a habit of migrating from the downstream of the river to the upstream of the river to lay eggs, and when the river is cut off by artificial reasons such as building a retaining dam, the channel for the fish to migrate upstream is destroyed. In order to protect the habit of fish, artificial water tanks, called fishways, need to be built across the dam as a path for fish migration. The water flow enters the fishway from the upstream and flows out of the fishway from the downstream, but fish enters the fishway from the downstream and flows out of the fishway from the upstream, so that the upstream water intake of the fishway is called as a fishway outlet, and the downstream water outlet of the fishway is called as a fishway inlet.
For the purpose of fish passage through a fishway, the fishway is generally required to meet the following requirements: 1. the water depth is required, and the water depth in the fishway is required to be kept at 1.0-1.5 m; 2. slope requirements, in order to enable fish to migrate upstream along the water flow, the water flow velocity in the fishway is smaller than the fish migration velocity, and the fishway is required to keep a slow and stable slope; 3. when the upstream water level changes, the fishway outlet needs measures which can adapt to the water level changes, and the fishway can keep 1.0-1.5 m water depth for a long time under various water levels.
In order to meet the above requirements, the following two fishway exit arrangements are commonly adopted in the current engineering:
1 existing scheme one
According to the scheme, the fishway outlets are arranged at the upstream of the retaining dam, a plurality of fishway outlets are simultaneously arranged along the elevation in the water level amplitude region, and each outlet is controlled by adopting a 1-channel flat gate. The structure is characterized in that: 1. fishway outlets are uniformly distributed at the upstream of the water retaining dam; 2. in the upstream water level amplitude changing area, the fishway is provided with a plurality of outlets along the elevation, and the outlets of the fishway are mutually connected in elevation; 3. and each fishway outlet is provided with 1 flat steel gate for controlling the water discharge flow. The main advantages of this structure are: in the upstream water level amplitude changing area, each Gao Chengduan is provided with a fishway outlet, when the upstream water level is at a certain elevation, the requirements of 1.0-1.5 m water depth in the fishway can be met by only opening the gates of the fishway outlets at the corresponding elevations and closing the gates of the other fishway outlets. The main disadvantages of this structure are: 1. the fishway outlets are uniformly distributed at the upstream, the length of the fishway along the river is longer, the corresponding excavation amount or concrete engineering amount is larger, and the fishway engineering investment is larger; 2. the number of the fishway outlets is large, and each gate needs to be opened and closed in time according to the condition of the upstream water level, and when the fluctuation range of the upstream water level is large and the fluctuation is frequent, the operation control of the fishway outlet gate is complex.
2 the prior scheme II
According to the scheme, the fishway outlets and the retaining dams are combined and arranged, a plurality of fishway outlets are sequentially arranged along the axis of the retaining dams in the water level amplitude region, and each fishway outlet is controlled by adopting a 1-channel flat gate. The advantage of this structure lies in: 1. the fishway outlets are combined with the retaining dam, the fishway outlets are sequentially arranged along the axis of the retaining dam in the horizontal direction and mutually connected in the elevation direction, the adjacent fishway outlets are connected through downstream connecting channels, and the fishway outlet at the lowest elevation is connected with the fishway inlet through the connecting channels; 2. for a single fishway outlet, the upper middle part is provided with 1-channel flat working gate opening and closing, and the downstream is provided with a connecting channel connected with the fishway outlet of the next stage. The main disadvantages of this structure are: 1. in order to meet the requirement of water level amplitude, a plurality of fishway outlets are required to be arranged at the upstream along the axis of the dam, so that the dam is not suitable for a water retaining dam of a narrow river valley; 2. because each fishway outlet needs to be provided with 1 flat working gate, and each gate needs to be opened and closed in time according to the condition of the upstream water level, when the fluctuation range of the upstream water level is large and the fluctuation is frequent, the operation control of the fishway outlet gate is also complicated.
In either of the above schemes, the method has an obvious characteristic that the method is applied to large and medium-sized hydropower engineering with deep water level in a reservoir area and large water storage capacity. And in some small projects with smaller water flow and shallower reservoir water level and smaller water storage capacity, the method is not suitable for small projects. Therefore, finding a fish passing system which can adapt to small and medium-sized hydraulic and hydroelectric engineering becomes a technical problem which needs to be solved by the technicians in the field.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the fish passing system is stable in operation, suitable for the water engineering of the intercepting dam with small water flow, shallow water level in a reservoir area and relatively small water storage capacity.
The technical scheme adopted for solving the technical problems is as follows: the fish passing system for the hydraulic engineering of the intercepting dam comprises the intercepting retaining dam, the fish passing system further comprises a fish trapping and capturing mechanism and a conveying mechanism, migration shoals in a river channel at the downstream side of the intercepting retaining dam are trapped and collected by ecological water introduced by the fish trapping and capturing mechanism, and the migration shoals after trapped and collected are conveyed into the river channel at the upstream side of the intercepting retaining dam by the conveying mechanism.
The beneficial effects of the invention are as follows: according to the method, the fish passing system comprising the fish trapping and capturing mechanism and the conveying mechanism is arranged, migration shoals in the river channel at the downstream side of the intercepting retaining dam are collected by trapping ecological water introduced by the fish trapping and capturing mechanism, and then the migration shoals after trapping and collecting are conveyed to the river channel at the upstream side of the intercepting retaining dam by the conveying mechanism. Therefore, according to the habit of the shoal of fish, the shoal of fish living in the downstream river can be attracted to the vicinity of the downstream side of the intercepting retaining dam and captured by the shoal of fish living in the upstream river only by a small water flow, and then transported to the river on the upstream side of the intercepting retaining dam by the transportation mechanism, so that the small water flow is realized, the migration of the shoal of fish can be ensured after the river is physically cut off by the intercepting retaining dam, the adaptation water flow is small, the water level of a reservoir area is shallow, and the water storage capacity is relatively small. The fish swarm migration principle of the fish passing system is completely different from the fish swarm migration principle in the prior art along water flow, and is realized through trapping, collecting and mechanical transportation, so that the stability of the operation of the fish passing system is ensured.
Further, the transportation mechanism comprises an upper supporting bent, a lower supporting bent and a cableway conveying device with a fish collecting structure, wherein the cableway conveying device is movably arranged between the dam top of the intercepting retaining dam and the fish attracting capturing area of the fish attracting capturing mechanism through the upper supporting bent and the lower supporting bent; the ecological water introduced by the fish attracting and capturing mechanism induces the collected migration fish swarm, and the fish gathering structure is matched with the cableway conveying device to be conveyed into a river channel at the upstream side of the intercepting retaining dam.
The preferable mode of above-mentioned scheme is, the fish collection structure be rectangular shape fish collection bucket, cableway conveyor include transport cableway and power supply, liftable install admittedly rectangular shape fish collection bucket on transporting the cableway along transporting the cableway reciprocating motion under the power supply cooperation.
Further, the fish attracting and capturing mechanism comprises an ecological water drainage pipe system, a water collecting overflow pool and a fish attracting and capturing system which are sequentially arranged along the water flow direction, wherein an ecological water input end of the ecological water drainage pipe system is communicated with the upstream side of the intercepting water retaining dam, an ecological water output end of the ecological water drainage pipe system is communicated with the water collecting overflow pool, the water collecting overflow pool is sequentially communicated with the fish attracting and capturing system, and a fish collecting structure of the conveying mechanism is movably arranged in a fish attracting and capturing area of the fish attracting and capturing system.
The preferable mode of the scheme is that the ecological water diversion pipe system comprises a diversion pipe and a control valve, the upper end of the diversion pipe penetrating through the intercepting water retaining dam is communicated with the upstream side of the intercepting water retaining dam, and the lower end of the diversion pipe penetrating through the intercepting water retaining dam is communicated with the water collecting overflow pool.
Further, the water collecting overflow pool comprises a water collecting pool and an overflow weir positioned on the downstream side of the water collecting pool, and the water collecting overflow pool is sequentially communicated with the fish attracting capturing system through the downstream side of the overflow weir.
The fish-attracting capturing system comprises a fish-blocking grid and a fish-catching grid which are arranged in the fish-attracting capturing area, and the fish-collecting structure is movably arranged between the fish-blocking grid and the fish-catching grid.
Further, a fish attracting passage communicated with the downstream water body is also connected to the downstream side of the fish attracting capturing area.
Further, a migration-assisting protrusion is arranged on the bottom plate of the fish-luring channel.
Further, the downstream side of the fish-luring capturing area is also connected with a fish-luring channel communicated with downstream water, and a migration-assisting protrusion is arranged on the bottom plate of the fish-luring channel.
Drawings
FIG. 1 is a schematic diagram of a fish attracting condition of a fish passing system for use in a dam hydraulic engineering of the present invention;
FIG. 2 is a schematic diagram of a fish gathering condition of a fish passing system for hydraulic engineering of a shut-off dam according to the present invention;
FIG. 3 is a schematic diagram of fish transporting conditions of a fish passing system for use in the hydraulic engineering of the closure dam of the present invention;
fig. 4 is a schematic diagram of a fish-putting condition of the fish-passing system for the hydraulic engineering of the intercepting dam.
Marked in the figure as: the fish catching device comprises a intercepting retaining dam 1, a fish catching mechanism 2, a conveying mechanism 3, an upper supporting bent 4, a lower supporting bent 5, a fish collecting structure 6, a cableway conveying device 7, a fish catching region 8, a conveying cableway 9, an ecological water drainage pipe system 10, a water collecting overflow pool 11, a fish catching system 12, a water conduit 13, a control valve 14, a water collecting pool 15, an overflow weir 16, a fish blocking grid 17, a fish catching grid 18, a fish catching channel 19 and a migration assisting bulge 20.
Detailed Description
The fish passing system provided by the invention has stable running operation and is suitable for the hydraulic engineering of the intercepting dam with smaller water flow, shallower water level in a reservoir area and relatively smaller water storage capacity as shown in figures 1, 2, 3 and 4. The fish passing system comprises a intercepting retaining dam 1, the fish passing system further comprises a fish trapping and capturing mechanism 2 and a conveying mechanism 3, wherein the migratory fish swarm in the river channel at the downstream side of the intercepting retaining dam 1 is trapped and collected by ecological water introduced by the fish trapping and capturing mechanism 2, and the migratory fish swarm after trapped and collected is conveyed into the river channel at the upstream side of the intercepting retaining dam 1 by the conveying mechanism 3. According to the method, a set of fish passing system comprising the fish trapping and capturing mechanism 2 and the transporting mechanism 3 is arranged, migration fish shoals located in a river channel on the downstream side of the intercepting retaining dam 1 are trapped and collected through ecological water introduced by the fish trapping and capturing mechanism 2, and then the trapped and collected migration fish shoals are transported to the river channel on the upstream side of the intercepting retaining dam 1 through the transporting mechanism 3. Thus, according to the habit of the shoal of fish, only a small water flow is needed to induce the shoal of fish living in the downstream river to spawn in the upstream river to the vicinity of the downstream side of the intercepting retaining dam 1 and capture the shoal of fish, and then the shoal of fish is transported to the river at the upstream side of the intercepting retaining dam 1 through the transporting mechanism 3, so that even the small water flow is realized, the migration of the shoal of fish can be ensured after the river is physically cut off by the intercepting retaining dam 1, the water flow is small, the water level of a reservoir area is shallow, and the water storage capacity is relatively small. The fish swarm migration principle of the fish passing system is completely different from the fish swarm migration principle in the prior art along water flow, and is realized through trapping, collecting and mechanical transportation, so that the stability of the operation of the fish passing system is ensured.
In the above embodiment, in order to adapt to the actual situation of small and medium-sized hydraulic and hydroelectric engineering with smaller reservoir water level and smaller water storage capacity, the structures of the fish attracting and capturing mechanism 2 and the transporting mechanism 3 are simplified, so that the fish attracting and capturing mechanism is convenient to construct, manufacture, install and maintain and reduce the casting cost, the transporting mechanism 3 comprises an upper supporting bent 4, a lower supporting bent 5 and a cableway transporting device 7 with a fish collecting structure 6, the cableway transporting device 7 is movably arranged between the dam top of the intercepting and retaining dam 1 and the fish attracting and capturing area 8 of the fish attracting and capturing mechanism 2, the ecological water intake fish shoals introduced by the fish attracting and capturing mechanism 2 are conveniently built, manufactured and maintained, and the casting cost is reduced, and the transporting mechanism 3 comprises the upper supporting bent 4, the lower supporting bent 5 and the cableway transporting device 7 with the cableway transporting device 7 is matched with the upper side of the intercepting and retaining dam 1, and the ecological water intake fish shovelling pool is collected by the fish attracting and capturing mechanism 2. At this time, the fish collecting structure 6 is preferably a strip-shaped fish collecting barrel which is matched with the fish attracting capturing area 8, the cableway conveying device 7 comprises a conveying cableway 9 and a power source, and the strip-shaped fish collecting barrel which is fixedly arranged on the conveying cableway 9 in a lifting manner can reciprocate along the conveying cableway 9 under the cooperation of the power source; the fish attracting and capturing mechanism 2 also correspondingly comprises an ecological water drainage pipe system 10, a water collecting overflow pool 11 and a fish attracting and capturing system 12 which are sequentially arranged along the water flow direction, wherein the ecological water input end of the ecological water drainage pipe system 10 is communicated with the upstream side of the intercepting retaining dam 1, the ecological water output end of the ecological water drainage pipe system 10 is communicated with the water collecting overflow pool 11, the water collecting overflow pool 11 is sequentially communicated with the fish attracting and capturing system 12, and the fish collecting structure 6 of the conveying mechanism 3 is movably arranged in the fish attracting and capturing area 8 of the fish attracting and capturing system 12. In order to make the ecological water diversion pipe system 10, the water collection overflow pool 11 and the fish attracting capturing system 12 well adapt to the structure of the intercepting water retaining dam 1 respectively, the ecological water diversion pipe system 10 preferably comprises a water diversion pipe 13 and a control valve 14, wherein the upper end of the water diversion pipe 13 is communicated with the upstream side after passing through the intercepting water retaining dam 1, and the lower end of the water diversion pipe 13 is communicated with the water collection overflow pool 11; the water collecting overflow tank 11 preferably comprises a water collecting tank 15 and an overflow weir 16 positioned on the downstream side of the water collecting tank 15, wherein the water collecting overflow tank 11 is sequentially communicated with the fish attracting capturing system 12 through the downstream side of the overflow weir 16; the fish-attracting capture system 12 preferably includes a fish-blocking grid 17 and a fish-catching grid 18 disposed in the fish-attracting capture area 8, the fish-collecting structure 6 being movably disposed between the fish-blocking grid 17 and the fish-catching grid 18.
Furthermore, in order to facilitate the fish swarm living in the downstream river channel to be attracted into the fish attracting capturing system 12 more conveniently, a fish attracting passage 19 communicated with the downstream water body is further connected to the downstream side of the fish attracting capturing area 8, and a migration promoting protrusion 20 is arranged on the bottom plate of the fish attracting passage 19.
In summary, the fish passing system adopting the structure provided by the application has the following beneficial effects:
1) The fish placing system comprising the fish placing hole and the fish placing pond is adopted to replace a fishway outlet structure, the water depth of the fish placing pond is lower than the lowest running water level at the upstream, and the engineering quantity of the fishway outlet is greatly saved while the requirement of amplitude variation of the upstream water level is met;
2) The fish transporting system comprising the lower bent, the upper bent and the fish transporting cable set is adopted to replace a dam penetrating channel and a downstream channel, so that when the water level difference between the upper side and the downstream side of the retaining dam is large, the engineering quantity of the downstream channel is greatly saved;
3) The fish passing structure and the ecological flow pipes are combined and arranged, so that the arrangement is more compact, and the transverse space of a narrow river valley retaining dam can be effectively saved; the ecological flow is adopted for attracting fish, the special flowing-down of the fish flow is not needed, the saved fish flowing-down flow can be used for generating electricity, and the engineering electricity generating benefit is increased;
4) Compared with the traditional fishway, the complex gate operation is not needed according to the upstream water level change condition, and the operation is simpler.
Example 1
The main structural features of this embodiment are:
a. the fish passing structure is combined with a water retaining dam and an ecological flow pipe to form a water diversion pipe 13 and a control valve 14 of the ecological water diversion pipe system 10;
b. the fish passing structure consists of a fish attracting system, a fish collecting system, a fish transporting system and a fish placing system, wherein the fish attracting system and the fish collecting system are called as the fish attracting capturing mechanism 2, and the fish transporting system and the fish placing system are called as the transporting mechanism 3;
c. the fish attracting system comprises an ecological flow pipe, a control valve, a water collecting tank, an overflow weir and a fish attracting channel, and is used for attracting fish by adopting the ecological flow pipe in a leakage way;
d. the fish collecting system consists of a fish blocking grid, a fish catching grid, a fish collecting barrel and a fish collecting rope. Wherein the fish blocking grating is arranged at the downstream of the overflow weir, and the top exceeds the downstream water level; the fish catching grating is arranged at the downstream of the fish blocking grating, the arrangement mode similar to a lever is adopted, the upstream end is fixed, and the downstream end is connected with the lower bent frame through a fish collecting cable; the fish collecting barrel is arranged between the fish blocking grid and the fish catching grid and is connected with the fish conveying system through a fish conveying cable.
e. The fish transporting system consists of a lower bent arranged at the downstream of the retaining dam, an upper bent arranged at the top of the retaining dam and a fish transporting cable;
f. the fish-placing system mainly comprises a fish-placing hole and a fish-placing pond which are arranged in the retaining dam, wherein the bottom elevation of the fish-placing pond is lower than the lowest running water level elevation at the upstream.
Detailed operation of the embodiment
1) The fish attracting condition is shown in figure 1
The upstream water flows downwards to the water collecting tank through the ecological flow pipe, then downwards to the fish luring channel through the overflow weir, and after passing through the fish blocking grating and the fish catching grating in a horizontal state. Fish in the downstream river channel can pass through the fish attracting channel and the fish catching grating along the flowing direction and then reach the space between the fish blocking grating and the fish catching grating.
2) The fish collecting working condition is shown in figure 2
After a certain time of fish attracting, the fish catching bars are pulled up by the fish catching ropes, and then the fish collecting barrel is lifted by the fish transporting ropes, so that the fishes between the fish catching bars and the fish catching bars can be collected in the fish collecting barrel.
3) The fish transporting condition is shown in figure 3
The fish collecting barrel can be conveyed to the upper bent from the lower bent through the fish conveying cable.
4) The fish-laying condition is shown in figure 4
When the fish collecting barrel reaches the set position of the upper bent, the fish collecting barrel can be lowered to the fish placing pond through the fish placing hole by the fish transporting cable, and then the fish is transported from the downstream of the retaining dam to the upstream.
After the fish is put, the fish collecting barrel is lifted by the fish conveying cable and conveyed back between the fish blocking grating and the fish catching grating, the fish catching grating is lowered to the water level position by the fish collecting cable, and the fish passing system is restored to the fish attracting state.
Claims (6)
1. The utility model provides a fish system that crosses that dam hydraulic engineering used, includes shutoff retaining dam (1), its characterized in that: the fish passing system also comprises a fish attracting capturing mechanism (2) and a conveying mechanism (3), wherein the migration fish swarm positioned in the river channel at the downstream side of the intercepting retaining dam (1) is trapped and collected by ecological water introduced by the fish attracting capturing mechanism (2), the trapped and collected migration fish swarm is conveyed into the river channel at the upstream side of the intercepting retaining dam (1) by the conveying mechanism (3),
the transporting mechanism (3) comprises an upper supporting bent (4), a lower supporting bent (5) and a cableway transporting device (7) with a fish collecting structure (6), wherein the cableway transporting device (7) is movably arranged between the dam top of the intercepting retaining dam (1) and a fish attracting capturing area (8) of the fish attracting capturing mechanism (2) through the upper supporting bent (4) and the lower supporting bent (5); the ecological water introduced by the fish attracting and capturing mechanism (2) tempts the collected migration fish swarm, the collected migration fish swarm is transported to the river channel at the upstream side of the intercepting retaining dam (1) through the fish gathering structure (6) under the cooperation of the cableway transporting device (7),
the fish-attracting capturing mechanism (2) comprises an ecological water drainage pipe system (10), a water collecting overflow pool (11) and a fish-attracting capturing system (12) which are sequentially arranged along the water flow direction, wherein the ecological water input end of the ecological water drainage pipe system (10) is communicated with the upstream side of a intercepting retaining dam (1), the ecological water output end of the ecological water drainage pipe system (10) is communicated with the water collecting overflow pool (11), the water collecting overflow pool (11) is sequentially communicated with the fish-attracting capturing system (12), the fish collecting structure (6) of the conveying mechanism (3) is movably arranged in the fish-attracting capturing zone (8) of the fish-attracting capturing system (12),
the fish collecting structure (6) is a strip-shaped fish collecting barrel, the cableway conveying device (7) comprises a conveying cableway (9) and a power source, the strip-shaped fish collecting barrel which is fixedly arranged on the conveying cableway (9) in a lifting manner can reciprocate along the conveying cableway (9) under the cooperation of the power source,
the downstream side of the fish attracting capturing zone (8) is also connected with a fish attracting passage (19) communicated with downstream water, and a migration-assisting protrusion (20) is arranged on the bottom plate of the fish attracting passage (19).
2. The fish passing system for use in dam hydraulic engineering according to claim 1, wherein: the ecological water drainage pipe system (10) comprises a water diversion pipe (13) and a control valve (14), the upper end of the water diversion pipe (13) penetrating through the intercepting water retaining dam (1) is communicated with the upstream side of the intercepting water retaining dam, and the lower end of the water diversion pipe (13) penetrating through the intercepting water retaining dam (1) is communicated with the water collecting overflow pool (11).
3. A fish passing system for use in dam hydraulic engineering according to claim 1 or 2, wherein: the water collection overflow pool (11) comprises a water collection pool (15) and an overflow weir (16) positioned on the downstream side of the water collection pool (15), and the water collection overflow pool (11) is sequentially communicated with the fish attracting capturing system (12) through the downstream side of the overflow weir (16).
4. A fish passing system for use in dam hydraulic engineering according to claim 3, wherein: the fish attracting and capturing system (12) comprises a fish blocking grid (17) and a fish catching grid (18) which are arranged in the fish attracting and capturing area (8), and the fish collecting structure (6) is movably arranged between the fish blocking grid (17) and the fish catching grid (18).
5. The fish passing system for use in dam hydraulic engineering according to claim 4, wherein: a fish attracting passage (19) communicated with the downstream water body is also connected to the downstream side of the fish attracting capturing zone (8).
6. The fish passing system for use in dam hydraulic engineering according to claim 5, wherein: a migration-assisting protrusion (20) is arranged on the bottom plate of the fish-attracting passage (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711207654.1A CN108086262B (en) | 2017-11-27 | 2017-11-27 | Fish passing system for hydraulic engineering of closure dam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711207654.1A CN108086262B (en) | 2017-11-27 | 2017-11-27 | Fish passing system for hydraulic engineering of closure dam |
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| CN108086262A CN108086262A (en) | 2018-05-29 |
| CN108086262B true CN108086262B (en) | 2024-02-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109371932B (en) * | 2018-11-30 | 2024-02-13 | 中国电建集团成都勘测设计研究院有限公司 | Hydraulic shaft type fish passing structure |
| CN109469030B (en) * | 2018-12-21 | 2024-03-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Fish gathering and transporting system for diversion type power generation high dam |
| CN109853492B (en) * | 2019-03-28 | 2021-01-01 | 中水珠江规划勘测设计有限公司 | Gate valve pipeline type fish passing method |
| CN110080178B (en) * | 2019-04-01 | 2020-06-12 | 河海大学 | Fishway design method |
| CN109924172A (en) * | 2019-04-09 | 2019-06-25 | 四川大学 | A kind of cable car type fish lift device |
| CN112681253A (en) * | 2020-12-14 | 2021-04-20 | 三峡大学 | Novel fishway that import was arranged |
| CN114304088B (en) * | 2021-11-30 | 2024-02-06 | 杭州市农业科学研究院 | Method for catching mountain stream |
| CN117717030B (en) * | 2024-02-08 | 2024-05-03 | 四川弘信天启科技有限公司 | Fish luring screening device and fish lifting machine system |
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- 2017-11-27 CN CN201711207654.1A patent/CN108086262B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0853831A (en) * | 1994-08-12 | 1996-02-27 | Dam Suigenchi Kankyo Seibi Center | Lift type fishway device |
| CN105421307A (en) * | 2015-12-25 | 2016-03-23 | 中水北方勘测设计研究有限责任公司 | Rail type fish passing structure applied to medium and high-water-head barrage hubs |
| CN106087906A (en) * | 2016-06-28 | 2016-11-09 | 罗富强 | A kind of ecological dam with fish migration passage |
| CN106522177A (en) * | 2016-11-18 | 2017-03-22 | 中国电建集团成都勘测设计研究院有限公司 | Fishway system arranged inside water retaining dam |
| CN207512708U (en) * | 2017-11-27 | 2018-06-19 | 中国电建集团成都勘测设计研究院有限公司 | Fish system is crossed in cut-off dam hydraulic engineering |
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| CN108086262A (en) | 2018-05-29 |
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