CN115162291A - Fishway return flow control structure - Google Patents
Fishway return flow control structure Download PDFInfo
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- CN115162291A CN115162291A CN202210859590.8A CN202210859590A CN115162291A CN 115162291 A CN115162291 A CN 115162291A CN 202210859590 A CN202210859590 A CN 202210859590A CN 115162291 A CN115162291 A CN 115162291A
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- 241000251468 Actinopterygii Species 0.000 claims abstract description 79
- 230000001617 migratory effect Effects 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000001514 detection method Methods 0.000 claims description 21
- 235000013305 food Nutrition 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 238000007667 floating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 17
- 230000009182 swimming Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 5
- 230000001276 controlling effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005012 migration Effects 0.000 description 4
- 238000013508 migration Methods 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 231100000225 lethality Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method 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
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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
Abstract
The invention discloses a fishway return flow control structure, and belongs to the technical field of hydraulic engineering. The structure comprises a dam body and a flow velocity regulating and controlling assembly, wherein a fishway is formed in the dam body, a plurality of flow disturbing rings are arranged in the fishway, and the flow velocity regulating and controlling assembly is arranged in the fishway and close to the downstream end of the fishway. Except that set up in the fishway and disturb the current ring and carry out choked flow and vortex, still be close to the position installation velocity of flow regulation and control subassembly of low reaches end in the fishway and carry out choked flow and vortex to improve effect and the flexibility to rivers velocity of flow control in the fishway through velocity of flow regulation and control subassembly. When fish pass through the fishway migratory, if fish physical power is not enough and stop swimming, then can receive the action of gravity and fall to the slow flow region between the adjacent turbulent ring for fish can not directly be washed to the fishway low reaches by rivers, and fish can stop and the short rest in this slow flow region, wait to resume the migratory after physical power resumes.
Description
Technical Field
The invention relates to a fishway return flow control structure, and belongs to the technical field of hydraulic engineering.
Background
The protection of aquatic organisms is an important problem to be considered in a hydraulic engineering construction project, and in order to reduce the influence of the hydraulic engineering on the living conditions and the hydrological situation of aquatic organisms such as fishes and reduce the damage of blocking of the aquatic organisms upstream and downstream caused by dam building, the main measures adopted at present are to build a fishway in the hydraulic engineering, and the fishes can return through the fishway. The fishway is the passageway that supplies fish to travel back, mainly considers fish and traces to the habit upward, and in the low reaches of fishway, fish get into the fishway and travel back to the upper reaches of fishway under the attraction of rivers against the current, because partly river rivers are torrential more urgent for the inside rivers of fishway are easily disorderly, and fish is difficult to rely on self strength to travel back smoothly, leads to behind fish a segment distance of travel back, because the physical power is not enough and is washed back to the fishway low reaches by rivers.
Therefore, chinese patent publication No. CN105862687a discloses a spoiler duct type fishway, which includes: the hydraulic engineering upper and lower stream pipe type main bodies are connected, and spoilers are uniformly arranged in the pipe type main bodies. The flow velocity of water in the tubular main body is reduced through the flow blocking plate, so that the probability that downstream fishes successfully swim back to the upstream is improved.
However, the flow rate of water in the tubular body is controlled only by the flow blocking plate, and the flow rate control effect and the flow rate control flexibility thereof need to be further improved.
Disclosure of Invention
In order to solve the technical problem, the invention provides a fishway return water flow control structure.
The invention is realized by the following technical scheme:
the utility model provides a fishway migratory water flow control structure, includes dam body and velocity of flow regulation and control subassembly, it has the fishway to have seted up in the dam body, be equipped with a plurality of in the fishway and disturb the flow ring, the velocity of flow regulation and control subassembly is established in the fishway to be close to the low reaches end of fishway.
A plurality of turbulence rings are arranged in the fishway at equal intervals, each turbulence ring is conical, and the small end of each turbulence ring points to the upstream end of the fishway.
The flow velocity regulation and control assembly comprises a servo motor, a rolling wheel and a connecting plate, a rotary groove is formed in the bottom of the fishway, the rolling wheel is located in the rotary groove and sleeved on an output shaft of the servo motor, an air floatation bag is arranged in the connecting plate, the top of the connecting plate is connected with the top of the fishway through an elastic folding curtain, and the bottom of the connecting plate is connected with the rolling wheel through a connecting rope.
A plurality of guide holes are uniformly formed in the elastic folding curtain.
A plurality of magnetic blocks are uniformly distributed on the inner wall of the rotary groove, a follow-up strip is fixedly arranged in the winding wheel, and the follow-up strip can be attracted by the magnetic blocks.
The bottom of the connecting plate is provided with a plurality of flexible ribbons, and the flexible ribbons are provided with a plurality of metal sheets.
Fishway migratory rivers control structure still includes the controller, is equipped with the water proof membrane on the inner wall of vortex ring, and the inner wall of water proof membrane passes through the elasticity piece to be connected with vortex ring, and vortex ring is last to be equipped with the detection box in the inboard of water proof membrane, and vortex ring is last to be equipped with travel switch in the inboard of detecting the box, and sliding connection has the slide in the detection box, and one side of slide is equipped with the detection piece, and the opposite side passes through the inner wall connection of connecting rod and water proof membrane, controller and travel switch and servo motor electric connection.
The gas is stored in the detection box, has seted up the through-hole on the slide, and the slide is gone up one side that is close to the connecting rod and is articulated in the position corresponding with the through-hole have a flexible piece, has seted up the damping hole on the flexible piece, and the diameter of damping hole is less than the diameter of through-hole.
And a drainage hole is axially formed in the position, close to the fishway, on the turbulence ring.
An elastic membrane is arranged on the outer wall of the flow disturbing ring at a position close to the bottom of the fishway, a discharge port is formed in the elastic membrane, and fish food is filled in a space defined by the elastic membrane and the flow disturbing ring.
The invention has the beneficial effects that:
1. except that set up in the fishway and disturb the current ring and carry out choked flow and vortex, still be close to the position installation velocity of flow regulation and control subassembly of low reaches end in the fishway and carry out choked flow and vortex to improve effect and the flexibility to rivers velocity of flow control in the fishway through velocity of flow regulation and control subassembly.
2. When fish pass through the fishway migratory, if fish physical power is not enough and stop swimming, then can receive the action of gravity and fall to the slow flow region between the adjacent turbulent ring for fish can not directly be washed to fishway low reaches by rivers, and fish can stop and the short break in this slow flow region, wait to resume the migratory after physical power resumes.
3. After fish swim to the fishway in, can drive the reel through servo motor and rotate, make the folding curtain of elasticity expand and carry out the shutoff to the fishway to reduce the mobility of the inside water of fishway, and then reduce the resistance when fish swim back, make fish more easily through the fishway swim back.
4. When the fish is located in the slow flow region between the adjacent turbulent flow rings at the lower part of the fishway, if the fish activity extrudes the elastic membrane, fish food in the elastic membrane can be discharged through the discharge port, and the fish can eat the elastic membrane and supplement physical strength.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 2 at B;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C;
FIG. 5 is an enlarged view of a portion of FIG. 1 at D;
fig. 6 is a schematic view of the assembled structure of the flexible flag and the metal sheets of the present invention.
In the figure: 1-dam body, 2-fishway, 3-turbulent flow ring, 4-elastic folding curtain, 5-connecting plate, 6-air floating bag, 7-rotary groove, 8-rolling wheel, 9-connecting rope, 10-waterproof membrane, 11-elastic block, 12-detection box, 13-sliding plate, 14-connecting rod, 15-travel switch, 16-detection block, 17-guide hole, 18-through hole, 19-flexible sheet, 20-damping hole, 21-drainage hole, 22-elastic membrane, 23-discharge hole, 24-magnetic block, 25-follow-up strip, 26-flexible ribbon, and 27-metal sheet.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 to 6, the fishway return water flow control structure comprises a dam body 1 and a flow velocity regulating and controlling assembly, wherein a fishway 2 is arranged in the dam body 1, a plurality of turbulent flow rings 3 are arranged in the fishway 2, and the flow velocity regulating and controlling assembly is arranged in the fishway 2 and is close to the downstream end of the fishway 2. When using, except that setting up spoiler ring 3 in the fishway 2 and carrying out choked flow and vortex, still be close to the position installation velocity of flow regulation and control subassembly of low reaches end in fishway 2 and carry out choked flow and vortex to through velocity of flow regulation and control subassembly improvement to fishway 2 interior rivers velocity of flow control's effect and flexibility.
A plurality of turbulence rings 3 are arranged at equal intervals in the fishway 2, the turbulence rings 3 are conical, and the small ends of the turbulence rings 3 point to the upstream end of the fishway 2. Equidistant a plurality of spoiler rings 3 that set up in fishway 2 to constitute the unhurried current region between the adjacent spoiler ring 3 of fishway 2 lower part, because the interference effect of spoiler ring 3 to rivers, make the water mobility in this unhurried current region relatively poor, when fish passed through fishway 2 migratory, if fish physical power is not enough and stop swimming, then can receive the gravity action and fall the unhurried current region between the adjacent spoiler ring 3, make fish can directly not be washed 2 low reaches of fishway by rivers, and fish can stop and the short rest in this unhurried current region, resume the migratory after waiting physical power to resume. Through setting up a plurality of turbulent flow rings 3, constitute a plurality of slow current regions promptly for fish can stop and rest several times in fishway 2 inside, until swim back to fishway 2 upper reaches smoothly.
The flow velocity regulation and control subassembly includes servo motor, reel 8 and connecting plate 5, and the runner 7 has been seted up to the bottom of fishway 2, and reel 8 is located runner 7 to the suit is on servo motor's output shaft, installs air supporting bag 6 in the connecting plate 5, and the top of connecting plate 5 is passed through elasticity folding curtain 4 and is connected with the top of fishway 2, and the bottom of connecting plate 5 is passed through connecting rope 9 and is connected with reel 8. When in use, the elastic folding curtain 4 is vertical to the central axis of the fishway 2 and is used for throttling or blocking the water flow in the fishway 2. After fish swim to fishway 2 in, can drive reel 8 through servo motor and rotate, and then will connect 9 furnings of rope through reel 8, connect 9 pulling connecting plates of rope 5 downstream until with the laminating of 2 bottom plates of fishway for elasticity folding curtain 4 expandes and carries out the shutoff to fishway 2, thereby reduce the mobility of 2 inside waters of fishway, and then the resistance when reducing fish and wandering, make fish more easily through 2 migrations of fishway.
A plurality of guide holes 17 are uniformly arranged on the elastic folding curtain 4. After the elastic folding curtain 4 is unfolded to block the fishway 2, part of water can still flow through the guide holes 17, so that a certain water flow effect is ensured to exist in the fishway 2, and the phenomenon that after the fishway 2 is completely blocked, fishes lose the attraction of water flow and stop swimming back is avoided.
A plurality of magnetic blocks 24 are uniformly distributed and installed on the inner wall of the rotary groove 7, a follow-up strip 25 is fixedly installed in the winding wheel 8, and the follow-up strip 25 can be attracted by the magnetic blocks 24. Rotate the in-process at rolling wheel 8, follow-up strip 25 is attracted by a plurality of magnetic blocks 24 in proper order to the resistance effect to the rotation process production intermittent type formula of rolling wheel 8, make rolling wheel 8 can drive and connect 9 intermittent type trembles of rope, and then connect rope 9 and drive connecting plate 5 and the continuous shake of elasticity folding curtain 4, have the frightening effect of dispelling to near fish, avoid connecting plate 5 to move down the in-process with fish extrusion lethality. The winding wheel 8 can also be eccentrically sleeved on the output shaft of the servo motor to manufacture intermittent dithering.
The bottom of the connecting plate 5 is provided with a plurality of flexible ribbons 26, and the flexible ribbons 26 are provided with a plurality of metal sheets 27. The connecting plate 5 can drive the plurality of flexible ribbons 26 to swing when shaking, the flexible ribbons 26 and the metal sheets 27 which continuously swing are in contact with nearby fishes, and the fishes are further frightened and dispelled, so that the fishes are avoided, and the fishes are further prevented from being extruded and killed in the downward moving process of the connecting plate 5.
Fishway migratory rivers control structure still includes the controller, install water proof membrane 10 on vortex ring 3's the inner wall, water proof membrane 10's inner wall passes through elastic block 11 and is connected with vortex ring 3, vortex ring 3 is gone up and is installed detection box 12 in water proof membrane 10's inboard, and vortex ring 3 is gone up and is installed travel switch 15 in the inboard that detects box 12, sliding connection has slide 13 in the detection box 12, detection piece 16 is installed to one side of slide 13, the opposite side passes through connecting rod 14 and water proof membrane 10's interior wall connection, controller and travel switch 15 and servo motor electric connection. When fish moved about 3 inboards on vortex ring, if fish contact and extrusion water proof membrane 10 for connecting rod 14 drives slide 13 and slides in detection box 12 is inside, and then promotes detection piece 16 and travel switch 15 contact, and continuously trigger travel switch 15, travel switch 15 gives the controller with relevant signal transmission, controller control servo motor action makes elasticity folding curtain 4 expand shutoff fishway 2, with the rivers velocity of flow that reduces in the fishway 2, be favorable to fish to travel backward. Only when fish get into fishway 2 and extrude water proof membrane 10 servo motor just can start, servo motor's the number of times of starting has been reduced, energy saving, after fish no longer extrudeed water proof membrane 10, elastic block 11 (also can be the spring) promote the water proof membrane 10 and reset and swell, detect piece 16 and travel switch 15 and separate, after the controller received travel switch 15's relevant signal, control servo motor stall, after the time delay certain time, controller control servo motor antiport, release one section and connect rope 9, then connecting plate 5 receives the buoyancy effect of air supporting bag 6 and automatic upwards resets.
The gas is stored in the detection box 12, a through hole 18 is formed in the sliding plate 13, a flexible sheet 19 is hinged to one side, close to the connecting rod 14, of the sliding plate 13 at a position corresponding to the through hole 18, a damping hole 20 is formed in the flexible sheet 19, and the diameter of the damping hole 20 is smaller than that of the through hole 18. When the sliding plate 13 moves towards the direction close to the travel switch 15, the gas in the rodless cavity of the detection box 12 can directly push the flexible sheet 19 away, so that the flexible sheet 19 opens the through hole 18, and then the gas can flow through the through hole 18, therefore, the movement speed of the sliding plate 13 is high, when the sliding plate 13 resets under the action of the elastic block 11, the gas in the rodless cavity of the detection box 12 presses the flexible sheet 19 on the sliding plate 13 to block the through hole 18, and then the gas can only flow through the damping hole 20, therefore, the movement speed of the sliding plate 13 is low, namely, the separation speed of the detection block 16 and the travel switch 15 is low, the working time of the servo motor driving the winding wheel 8 to wind the connecting rope 9 is prolonged, and the connecting plate 5 is pulled to the bottom of the fishway 2 as far as possible.
And a drainage hole 21 is axially formed in the position, close to the fishway 2, of the turbulence ring 3. Set up drainage hole 21 on vortex ring 3 for water can flow through drainage hole 21, and when fish were located the slow stream region between the adjacent vortex ring 3, can experience the rivers effect that drainage hole 21 brought, guaranteed that the slow stream region still has certain rivers, avoids appearing fish and loses rivers and attract and stop the problem of migratory.
An elastic membrane 22 is arranged on the outer wall of the turbulence ring 3 at a position close to the bottom of the fishway 2, a discharge port 23 is formed in the elastic membrane 22, and fish food is filled in a space surrounded by the elastic membrane 22 and the turbulence ring 3. When fish are located in the slow flow region between the adjacent turbulent rings 3 at the lower part of the fishway 2, if the fish activity extrudes the elastic membrane 22, fish food in the elastic membrane 22 can be discharged through the discharge port 23, and the fish food can be eaten by the fish and can supplement physical strength.
The invention relates to a fishway return current control structure, which has the working principle as follows:
a plurality of turbulence rings 3 are arranged in the fishway 2 at equal intervals, and the turbulence rings 3 are used for performing flow resistance and turbulence on water flow in the fishway 2 so as to reduce the flow velocity of the water flow and form turbulence in the fishway 2, thereby being beneficial to the migratory of fishes in the fishway 2; meanwhile, a slow flow area can be formed between the adjacent turbulent flow rings 3 at the lower part of the fishway 2, due to the interference effect of the turbulent flow rings 3 on water flow, the water mobility in the slow flow area is poor, when fishes swim back through the fishway 2, if the physical strength of the fishes is insufficient and stop swimming, the fishes can fall into the slow flow area between the adjacent turbulent flow rings 3 under the action of gravity, so that the fishes cannot be directly flushed to the downstream of the fishway 2 by the water flow, can stay in the slow flow area and have a short rest, and continue to swim back after the physical strength is recovered.
When fish move about in vortex ring 3 inboard, if fish contact and extrusion water proof membrane 10 for connecting rod 14 drives slide 13 and slides in detection box 12 is inside, and then promotes detection piece 16 and travel switch 15 contact, and continuously triggers travel switch 15, travel switch 15 gives the controller with relevant signal transmission, controller control servo motor action makes elasticity folding curtain 4 expand shutoff fishway 2, with the rivers velocity of flow that reduces in the fishway 2, be favorable to fish to travel backward. When the fish does not squeeze the waterproof membrane 10 any more, the elastic block 11 pushes the waterproof membrane 10 to reset and bulge, the detection block 16 is separated from the travel switch 15, the controller receives a relevant signal of the travel switch 15 and controls the servo motor to stop rotating, after a period of time delay, the controller controls the servo motor to rotate reversely to release a section of the connecting rope 9, and then the connecting plate 5 automatically resets upwards under the buoyancy effect of the air floatation bag 6.
When fish are located in the slow flow region between the adjacent turbulent rings 3 at the lower part of the fishway 2, if the fish activity extrudes the elastic membrane 22, fish food in the elastic membrane 22 can be discharged through the discharge port 23, and the fish food can be eaten by the fish and can supplement physical strength.
The fishway return flow control structure provided by the invention has the following beneficial effects:
1. except that set up in fishway 2 and disturb the flow ring 3 and carry out choked flow and vortex, still be close to the position installation velocity of flow regulation and control subassembly of low reaches end in fishway 2 and carry out choked flow and vortex to improve effect and the flexibility to the interior velocity of flow control of fishway 2 through velocity of flow regulation and control subassembly.
2. When fish pass through 2 migrations of fishway, if fish physical power is not enough and stop swimming, then can receive the action of gravity and fall to the slow current region between the adjacent turbulent ring 3 for fish can not directly be washed 2 low reaches of fishway by rivers, and fish can stop and the short break in this slow current region, wait to resume the migrations after physical power resumes.
3. After fish swim to 2 insides of fishway, can drive the reel 8 through servo motor and rotate, make the folding curtain of elasticity 4 expand and carry out the shutoff to fishway 2 to reduce the mobility of 2 inside waters of fishway, and then reduce the resistance when fish swim back, make fish more easily through 2 migrations of fishway.
4. When fish are located in the slow flow region between the adjacent turbulent rings 3 at the lower part of the fishway 2, if the fish activity extrudes the elastic membrane 22, fish food in the elastic membrane 22 can be discharged through the discharge port 23, and the fish can eat the fish food and supplement physical strength.
Claims (10)
1. The utility model provides a fishway migratory rivers control structure which characterized in that: including dam body (1) and velocity of flow regulation and control subassembly, seted up fishway (2) in dam body (1), be equipped with a plurality of vortex ring (3) in fishway (2), the velocity of flow regulation and control subassembly is established in fishway (2) to be close to the low reaches end of fishway (2).
2. The fishway return flow control structure of claim 1, further comprising: equidistant a plurality of vortex rings (3) of having arranged in fishway (2), vortex ring (3) are the toper, and the tip of vortex ring (3) points to the upstream end of fishway (2).
3. The fishway return flow control structure of claim 1, further comprising: the flow rate regulation and control assembly comprises a servo motor, a rolling wheel (8) and a connecting plate (5), a rotary groove (7) is formed in the bottom of the fishway (2), the rolling wheel (8) is located in the rotary groove (7) and sleeved on an output shaft of the servo motor, an air floating bag (6) is arranged in the connecting plate (5), the top of the connecting plate (5) is connected with the top of the fishway (2) through an elastic folding curtain (4), and the bottom of the connecting plate (5) is connected with the rolling wheel (8) through a connecting rope (9).
4. The fishway return flow control structure of claim 3, wherein: a plurality of guide holes (17) are uniformly arranged on the elastic folding curtain (4).
5. The fishway return flow control structure of claim 3, wherein: a plurality of magnetic blocks (24) are uniformly distributed on the inner wall of the rotary groove (7), a follow-up strip (25) is fixedly arranged in the winding wheel (8), and the follow-up strip (25) can be attracted by the magnetic blocks (24).
6. The fishway return flow control structure of claim 3, wherein: the bottom of the connecting plate (5) is provided with a plurality of flexible ribbons (26), and the flexible ribbons (26) are provided with a plurality of metal sheets (27).
7. The fishway return flow control structure of claim 3, wherein: fishway migratory rivers control structure still includes the controller, be equipped with water proof membrane (10) on the inner wall of vortex ring (3), the inner wall of water proof membrane (10) passes through elastic block (11) and is connected with vortex ring (3), vortex ring (3) are gone up and are equipped with detection box (12) in the inboard of water proof membrane (10), and vortex ring (3) are gone up and are equipped with travel switch (15) in the inboard that detects box (12), sliding connection has slide (13) in detection box (12), one side of slide (13) is equipped with detects piece (16), the opposite side passes through the interior wall connection of connecting rod (14) and water proof membrane (10), controller and travel switch (15) and servo motor electric connection.
8. The fishway return flow control structure of claim 7, further comprising: the gas is stored in the detection box (12), the through hole (18) is formed in the sliding plate (13), the flexible sheet (19) is hinged to one side, close to the connecting rod (14), of the sliding plate (13) at a position corresponding to the through hole (18), the damping hole (20) is formed in the flexible sheet (19), and the diameter of the damping hole (20) is smaller than that of the through hole (18).
9. The fishway return flow control structure of claim 1, further comprising: and a drainage hole (21) is axially formed in the position, close to the fishway (2), on the turbulence ring (3).
10. The fishway return flow control structure of claim 1, further comprising: elastic membrane (22) is arranged at a position close to the bottom of the fishway (2) on the outer wall of the turbulence ring (3), a discharge hole (23) is formed in the elastic membrane (22), and fish food is filled in a space enclosed by the elastic membrane (22) and the turbulence ring (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210859590.8A CN115162291A (en) | 2022-07-20 | 2022-07-20 | Fishway return flow control structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210859590.8A CN115162291A (en) | 2022-07-20 | 2022-07-20 | Fishway return flow control structure |
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| CN202210859590.8A Pending CN115162291A (en) | 2022-07-20 | 2022-07-20 | Fishway return flow control structure |
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| KR20150109701A (en) * | 2014-03-20 | 2015-10-02 | 변찬우 | An ecologocal check dam having zigzag-typed fishways and the method for the construction |
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| CN104480913A (en) * | 2014-11-18 | 2015-04-01 | 河海大学 | Ecological fish way with staggered spacer block structures |
| CN205712014U (en) * | 2016-03-23 | 2016-11-23 | 李春垒 | A kind of have regulation current and the bionical ecological fishway of inducing action |
| CN206554039U (en) * | 2017-03-07 | 2017-10-13 | 国电大渡河沙坪水电建设有限公司 | A kind of vertical seam type fish channel structure |
| CN206547639U (en) * | 2017-03-07 | 2017-10-13 | 国电大渡河沙坪水电建设有限公司 | A kind of vertical seam type fish channel rest pond |
| CN108277784A (en) * | 2018-02-05 | 2018-07-13 | 安徽理工大学 | It is adapted to the imitative nature fish pass of different Burden-Swimming Ability of KM fish |
| CN113235530A (en) * | 2021-04-06 | 2021-08-10 | 珠江水利委员会珠江水利科学研究院 | Fishway system beneficial to stable and smooth migration of fishes |
| CN113279363A (en) * | 2021-05-27 | 2021-08-20 | 中国长江三峡集团有限公司 | Intelligent regulation and control device for fish migration and operation method thereof |
| CN114481978A (en) * | 2022-02-12 | 2022-05-13 | 郑州大学 | Multi-way energy dissipation and resistance reduction type ecological fishway |
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