CN115726331A

CN115726331A - Fishway system with comprehensive water replenishing, silt removing, detecting and water level adapting functions

Info

Publication number: CN115726331A
Application number: CN202211456540.1A
Authority: CN
Inventors: 石小涛; 陈小龙; 蔡显赫; 胡斯曼; 邓星勇; 谭均军; 邬玉娇
Original assignee: China Three Gorges University CTGU
Current assignee: China Three Gorges University CTGU
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-03
Anticipated expiration: 2042-11-21
Also published as: CN115726331B

Abstract

The invention discloses a fishway system with comprehensive water replenishing, silt removing, detecting and water level adapting functions, which comprises a fish collecting and transporting system, wherein the fish collecting and transporting system is sequentially and continuously provided with a fish luring fishway, a fish lifting system and a vertical seam type fishway along the upward fish tracing direction, and a fish collecting system is arranged in the fish luring fishway; vertical joint formula fishway one side is equipped with the video monitor system who keeps watch on fish and pass through the fishway condition, and the top of vertical joint formula fishway is provided with moisturizing desilting system with sliding, accomplishes collection fish and promotion operation through collection fish system and rising fish system, and fishway effect is unstable when effectively solving drought and waterlogging, monitors the condition of passing through in the fishway through video monitor system to control moisturizing desilting system and carry out moisturizing or desilting operation to the control condition.

Description

Fishway system integrating functions of water replenishing, silt removing, detection and water level adaptation

Technical Field

The invention relates to the technical field of fish passing facilities, in particular to a fishway system with comprehensive water replenishing, silt removing, detecting and water level adapting functions.

Background

In order to obtain energy required by human development, people construct hydraulic and hydroelectric projects such as gate dams on rivers, the river-blocking buildings destroy the original connectivity of the rivers, block fish migration channels and greatly influence fish resources and a river ecosystem, and in order to solve the problem, people construct fish ways to help fishes to pass through the dams.

However, the fishway has the following problems in the operation process: 1) In order to maximize fish passage, the fishway inlet elevation is generally set low, but this can result in the fishway being submerged during flooding and the fishway failing; 2) The key to the success of the fishway is fish luring water flow, and in the dry season, due to insufficient inflow, the fish cannot be effectively attracted; 3) The water at the upstream of the fishway generally contains more silt, and for the vertical seam type fishway, due to the special structure of the pool chamber, the silt carried by the water flow is easily deposited inside the fishway, so that the fish passing effect of the fishway is influenced; 4) At present, most fishways do not monitor the passing condition of fishes, so that the passing condition of the fishes cannot be effectively mastered.

Therefore, it is urgently needed to provide a fishway system with comprehensive multifunctional functions to improve the operating efficiency of the fishway.

Disclosure of Invention

The invention aims to overcome the defects and provide a fishway system with comprehensive water supplementing, silt removing, detecting and water level adapting functions, fish collecting and lifting operations are completed through a fish collecting system and a fish lifting system, the problem that the fishway is unstable in action in drought and waterlogging is effectively solved, the passing condition in the fishway is monitored through a video monitoring system, and a water supplementing and dredging system is controlled to supplement water or dredge according to the monitoring condition.

In order to solve the problems, the invention adopts the technical scheme that: the fishway system with the functions of comprehensively supplementing water, removing silt, detecting and adapting water level comprises a fish gathering and transporting system, wherein the fish gathering and transporting system is sequentially and continuously provided with a fish luring fishway, a fish lifting system and a vertical seam type fishway along the upward fish tracing direction, and a fish collecting system is arranged in the fish luring fishway;

a video monitoring system for monitoring the condition that fishes pass through the fishway is arranged on one side of the vertical seam type fishway, and a water supplementing and dredging system is arranged above the vertical seam type fishway in a sliding mode.

Preferably, the fish gathering system comprises an electrically openable and closable fish barrage structure.

More preferably, the fish blocking structure comprises a first fish blocking grate and a second fish blocking grate which are symmetrically arranged, the first fish blocking grate and the second fish blocking grate are opposite in moving direction, a first gear is arranged on the inner wall of the fishway close to the first fish blocking grate, a horizontal first rack is arranged on the first fish blocking grate, the first rack and the first gear form gear transmission fit, a second gear is arranged on the inner wall of the fishway close to the second fish blocking grate, a horizontal second rack is arranged on the second fish blocking grate, and the second rack and the second gear form gear transmission fit.

Furthermore, the bottom of the first fish blocking fence is provided with a first mechanical pulley in sliding fit with the bottom of the inner wall of the fishway, the bottom of the second fish blocking fence is provided with a second mechanical pulley in sliding fit with the bottom of the inner wall of the fishway, and the first gear and the second gear are respectively in transmission connection with an output shaft of a rotating motor.

Preferably, the fish lifting system comprises a fish lifting machine, the top of the fish lifting machine is a top plate, a first hoisting motor and a second hoisting motor are respectively arranged on the upper side of the top plate, a fish box with an open top is arranged below the top plate, lifting zippers are respectively arranged on two opposite sides of the top of the fish box, a first steel wire rope is arranged in the middle of the lifting chain on one side, the other end of the first steel wire rope is wound and matched with a rotor of the first hoisting motor, a second steel wire rope is arranged in the middle of the lifting chain on the opposite side, and the other end of the second steel wire rope is wound and matched with a rotor of the second hoisting motor.

More preferably, the wall of one side of the fish box close to the fish attracting fishway and the wall of the other side opposite to the fish attracting fishway are both provided with openable gates, and the wall of the fish box close to the top opening is provided with a plurality of water outlet holes along the opening.

Preferably, the video monitoring system is including hugging closely the monitor that vertical joint formula fishway set up, be equipped with on the wall one side that vertical joint formula fishway was pressed close to the monitor and observe the inside monitor window of fishway, be equipped with the video camera of camera end just to monitor window in the monitor, the below of video camera is equipped with the foot rest, is equipped with the bearing table in the monitor, and the bearing is equipped with the computer on the table, and the bottom of vertical joint formula fishway is equipped with the PIT monitoring antenna who is used for monitoring the PIT label of injection in the fish, computer and video camera, PIT monitoring antenna and moisturizing desilting system be electric connection respectively.

More preferably, one side of the monitoring room is provided with a ladder stand used for entering the room, a power supply is arranged in the monitoring room, and the power supply is electrically connected with the video camera, the computer and the PIT monitoring antenna respectively.

Preferably, the water replenishing and dredging system comprises a movable trolley, the bottom of the movable trolley is in sliding fit with the top of the vertical seam type fishway through a sliding rail paved along the vertical seam type fishway, and the movable trolley is provided with a water tank, a water replenishing pipeline, an installation frame, a hydraulic device and a nozzle.

As more preferably, the end of intaking of water tank is connected with external water source through moisturizing pipeline, and the end sealing connection of intaking of water tank and hydraulic means, hydraulic means is equipped with a plurality of water ends through the distributive pipe, and hydraulic means's front side is equipped with the mounting bracket, be equipped with the nozzle of a plurality of quantity and position and hydraulic means play water end one-to-one on the mounting bracket, hydraulic means's play water end and the nozzle sealing connection who corresponds, the nozzle is located perps formula fishway, and but the nozzle automatically controlled adjustment spray angle.

The invention has the beneficial effects that:

1) By arranging the fish lifting system, the fishway can dynamically adapt to the water level change of a downstream river, so that the fishway can be normally used under the condition of drought and waterlogging, the fishway is prevented from being submerged by river water, the running efficiency of the fishway is improved, and in addition, the method does not need to be provided with a plurality of fishways, so that the engineering cost is reduced;

2) The movable trolley is arranged at the top of the fishway, silt in the vertical seam type fishway is cleaned by using the jet flow of the trolley, the silt is blown into a fish lifting system and finally flows into a river channel, and the fishway has the beneficial effects that firstly, silt deposition in a fishway chamber is prevented, and meanwhile, a partition plate is not required to be additionally provided with a sand guide hole seam, the existing fish passing vertical seam is used for conveying the sand, so that the influence on the fish passing effect of the fishway can be reduced, the structure of the fishway partition plate is simpler, the fishway partition plate can be used as a water supplementing system when water is required to be supplemented, fish attracting water flow is increased, and the fish attracting effect is improved;

3) By arranging the video monitoring system, the system can collect the image information of the fish through the camera and count the upstream fishes injected with the PIT labels, thereby realizing quantitative high-quality monitoring of the fishes.

Drawings

FIG. 1 is a schematic structural view of the fish gathering system of the present invention;

FIG. 2 is a schematic top view of the fish gathering system of the present invention;

FIG. 3 is a schematic front view of the fish gathering system of the present invention;

FIG. 4 is a schematic view of the internal structural installation of the fish gathering system of the present invention;

FIG. 5 is a schematic view of the structure of the fish cage of the present invention;

FIG. 6 is a schematic structural diagram of the water replenishing dredging system of the present invention;

in the figure: 1. a fish gathering system; 11. the inner wall of the fishway; 12. a first fish barrier; 13. a first rack; 14. a first gear; 15. a second fish blocking fence; 16. a second rack; 17. a second gear; 18. a first mechanical pulley; 19. a second mechanical pulley; 2. a fish elevator; 21. a first hoist motor; 22. a second hoist motor; 23. a top plate; 24. a first steel wire rope; 25. a second wire rope; 26. a fish box; 27. lifting the zipper; 28. a gate; 29. a water outlet hole; 3. a vertical seam type fishway; 32. a slide rail; 4. a video monitoring system; 41. climbing a ladder; 42. a PIT monitoring antenna; 43. a load-bearing table; 44. a computer; 45. a video camera; 46. a foot rest; 47. a power source; 5. a water replenishing and dredging system; 51. a mobile trolley; 52. a water tank; 53. a mounting frame; 54. a nozzle; 55. a hydraulic device; 56. and a water supply pipeline.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1, 2 and 3, as a preferred embodiment 1, the fishway system integrating functions of water replenishing, silt removing, detecting and water level adapting includes a fish collecting and transporting system, wherein the fish collecting and transporting system is sequentially connected with a fish luring fishway, a fish lifting system and a vertical seam type fishway 3 along the upstream direction of fish, and a fish collecting system 1 is arranged in the fish luring fishway;

and a video monitoring system 4 for monitoring the condition that fishes pass through the fishway is arranged on one side of the vertical seam type fishway 3, and a water supplementing and dredging system 5 is arranged above the vertical seam type fishway 3 in a sliding manner.

In the embodiment, the fishes enter the fish collecting and transporting system to complete the upward tracing process, and the fish collecting and transporting system prevents the function failure of the fishway during the flood period; when fish enter the fish attracting fishway, the fish collecting system 1 intercepts the fish to move back, attracts the fish to the fish lifting system, the fish lifting system sends the fish to the vertical seam type fishway 3 through lifting, and the introduction of the fish lifting system can well cope with the water level change of a downstream river; the fishes finish the upward tracing through the vertical seam type fishway 3, when the fishes pass through, the fishes can be monitored through the video monitoring system 4, the upward tracing condition of the fishes is observed and counted; when silt is too much or the water level is too low in the vertical seam type fishway 3, the water replenishing and dredging system 5 can be controlled to move above the vertical seam type fishway 3 to carry out dredging or water replenishing operation.

As shown in fig. 1 and 2, as a preferred embodiment 2, the fish gathering system 1 includes an electrically opened and closed fish barrage structure. The device adopts the electronic fish blocking fence structure that opens and shuts as the way of moving back that collects fish system 1 intercepted fish, treats that the fish closes the fish blocking fence structure behind the fish blocking fence, can concentrate the fish at attracting fishway, avoids fish to flee because of hearing the sound that rises fish system and send.

As shown in fig. 1, fig. 2 and fig. 4, as a more preferred embodiment 3, the fish blocking grill structure includes a first fish blocking grill 12 and a second fish blocking grill 15 which are symmetrically arranged, and the moving directions of the first fish blocking grill 12 and the second fish blocking grill 15 are opposite, a first gear 14 is arranged on the inner wall 11 of the fishway close to the first fish blocking grill 12, a horizontal first rack 13 is arranged on the first fish blocking grill 12, the first rack 13 and the first gear 14 form a gear transmission fit, a second gear 17 is arranged on the inner wall 11 of the fishway close to the second fish blocking grill 15, a horizontal second rack 16 is arranged on the second fish blocking grill 15, and the second rack 16 and the second gear 17 form a gear transmission fit, so as to ensure that the first fish blocking grill 12 and the second fish blocking grill 15 can translate under the action of the gear transmission.

As a more preferable embodiment 4, the bottom of the first fish barrier 12 is provided with a first mechanical pulley 18 in sliding fit with the bottom of the inner wall 11 of the fishway, the bottom of the second fish barrier 15 is provided with a second mechanical pulley 19 in sliding fit with the bottom of the inner wall 11 of the fishway, so as to facilitate the movement of the fish barrier, and the first gear 14 and the second gear 17 are respectively in transmission connection with an output shaft of a rotating motor to provide translational power.

In the

above embodiments

3 and 4, the first fish barrier 12 and the second fish barrier 15 jointly form a complete fish barrier, when the fish barrier needs to be opened, the motor is rotated to drive the first gear 14 and the second gear 17 to rotate forward in opposite directions, at this time, the first rack 13 and the second rack 16 are translated away from each other under the cooperation of gear transmission to drive the first fish barrier 12 and the second fish barrier 15 to move away from each other, so that the fish barriers are blocked, and fish schools can enter the fish barrier; after all fish schools enter, the motor is rotated to drive the first gear 14 and the second gear 17 to reversely rotate in opposite directions, at the moment, the first rack 13 and the second rack 16 are in mutual approaching translation under the gear transmission coordination, the first fish barrier 12 and the second fish barrier 15 are driven to approach each other until the first fish barrier 12 and the second fish barrier 15 are closed to form a complete fish barrier, and the purpose of collecting fish is achieved.

As a more preferable embodiment 5, a fish monitoring sensor is arranged at an inlet of the fish barrage, the fish monitoring sensor and the rotating motor are electrically connected with a controller arranged on a fishway, the fish at the inlet of the fish barrage is monitored by the fish monitoring sensor, when all the fish enter, namely the fish monitoring sensor cannot monitor the fish, the fish monitoring sensor sends a signal to the controller, and the controller controls the rotating motor to close the fish barrage; when fish exists at the entrance of the fish barrier, namely the fish monitoring sensor continuously monitors the fish, the fish monitoring sensor sends a signal to the controller, and the controller controls the rotating motor to open the fish barrier and keep the fish barrier in an open state, so that the automatic opening and closing of the fish barrier can be realized.

As shown in fig. 1 to 5, as a preferred embodiment 6, the fish lifting system includes a fish lifting machine 2, a top plate 23 is disposed on the top of the fish lifting machine 2, a first hoisting motor 21 and a second hoisting motor 22 are respectively disposed on the upper side of the top plate 23 to provide lifting power, a fish box 26 with an open top is disposed below the top plate 23, lifting zippers 27 are respectively disposed on two opposite sides of the top of the fish box 26, a first steel wire rope 24 is disposed in the middle of the lifting zipper 27 on one side, the other end of the first steel wire rope 24 is wound and matched with a rotor of the first hoisting motor 21, a second steel wire rope 25 is disposed in the middle of the lifting zipper 27 on the opposite side, and the other end of the second steel wire rope 25 is wound and matched with a rotor of the second hoisting motor 22 to ensure smooth operation of lifting.

As a preferable embodiment 7, the side wall of the fish box 26 close to the fish inducing channel and the other side wall opposite to the fish inducing channel are provided with openable and closable gates 28 for facilitating the fish to enter and closing the fish box 26 after the fish enters, and the wall of the fish box 26 close to the top opening is provided with a plurality of water outlet holes 29 along the opening so as to maintain the water level and prevent the fish from jumping out and escaping.

In embodiments 6 and 7, the fish lifting system performs lifting operation by using the fish lifting machine 2, the fish lifting machine 2 is powered by the first hoisting motor 21 and the second hoisting motor 22, when all fish enter the fish box 26 from the fish luring fishway, the gate 28 of the fish box 26 is closed, the hoisting motor is opened, the electronic rotor is wound by the first steel wire rope 24 and the second steel wire rope 25 in a rotating way, the first steel wire rope 24 and the second steel wire rope 25 pull up the corresponding lifting chain 27, so that the fish box 26 is pulled up to the vertical seam fishway 3, the gate 28 on the other side is opened, and the fish and water enter the vertical seam fishway 3 together.

As shown in fig. 1, fig. 2 and fig. 4, as a preferred embodiment 8, video monitor system 4 is including hugging closely the monitor that vertical joint formula fishway 3 set up, be equipped with on the wall one side that vertical joint formula fishway 3 was pressed close to in the monitor and observe the inside monitor window of fishway, be equipped with the video camera 45 that the camera end is just right to monitor window in the monitor, the below of video camera 45 is equipped with foot rest 46, is equipped with bearing table 43 in the monitor, is equipped with computer 44 on the bearing table 43, and the bottom of vertical joint formula fishway 3 is equipped with the PIT monitoring antenna 42 that is used for monitoring the PIT label of injection in the fish, computer 44 and video camera 45, PIT monitoring antenna 42 and moisturizing desilting system 5 are electric connection respectively.

As a more preferable embodiment 9, a ladder 41 for entering the room is arranged on one side of the monitoring room, a power supply 47 is arranged in the monitoring room, and the power supply 47 is electrically connected with the video camera 45, the computer 44 and the PIT monitoring antenna 42 respectively.

In embodiment 8 and embodiment 9, the device monitors the passing condition of fish through the video monitoring system 4 system, the monitoring room can enter through the ladder 41, the power supply 47 provides power for monitoring, the video camera 45 is installed on the foot stool 46 and is aligned with the monitoring window to shoot so as to observe the conditions of fishways, the computer 44 is connected with the video camera 45 through software remote control, the condition of fish swarms passing through the vertical seam type fishway 3 can be visually displayed, the PIT tags can be injected in advance in the process of fish tracing, the PIT monitoring antenna 42 detects the PIT tags passing through the fish body and sends signals to the computer 44 for processing and statistics, the effect of detecting the fish-passing effect of the fishway is achieved, the computer 44 can also control the water replenishing and cleaning system, and water replenishing or desilting operation is performed according to the monitored conditions.

As shown in fig. 1, 2, 3, 4 and 6, as a preferred embodiment 10, the water replenishing dredging system 5 comprises a movable trolley 51, the bottom of the movable trolley 51 is in sliding fit with the top of the vertical seam type fishway 3 through a slide rail 32 laid along the vertical seam type fishway 3, so as to ensure displacement, the sliding is controlled by a computer 44, and the movable trolley 51 is respectively provided with a water tank 52, a water replenishing pipeline 56, a mounting rack 53, a hydraulic device 55 and a nozzle 54.

As a more preferred embodiment 11, the water inlet end of the water tank 52 is connected to an external water source through a water replenishing pipe 56, the water outlet end of the water tank 52 is hermetically connected to the water inlet end of the hydraulic device 55, the hydraulic device 55 is provided with a plurality of water outlet ends through a water dividing pipe, an installation frame 53 is arranged on the front side of the hydraulic device 55, a plurality of nozzles 54 are arranged on the installation frame 53, the number and the position of the nozzles 54 correspond to the water outlet end of the hydraulic device 55 one by one, the water outlet end of the hydraulic device 55 is hermetically connected to the corresponding nozzles 54, the nozzles 54 are located in the vertical seam fishway 3, and the nozzles 54 can electrically adjust the spraying angle.

In embodiments 10 and 11, the computer 44 of embodiments 8 and 9 can control the movable trolley 51 to move along the top of the vertical seam fishway 3, and a certain amount of silt can be deposited after the vertical seam fishway 3 is used for a long time, so as to reduce the fish passing effect of the fishway, when the silt is deposited to a certain amount, the dredging function of the water replenishing and dredging system 5 needs to be started, at this time, the water replenishing pipeline 56 adds water into the water tank 52, and then the computer 44 drives the movable trolley 51 and the hydraulic device 55 to work through software, so that the water in the water tank 52 is sprayed out from the nozzle 54, and the silt in the fishway is washed while moving, so as to achieve the purpose of dredging, further, the computer 44 can control the direction of the nozzle 54, and can also control the sprayed water quantity and the speed of the water flow, and when the deposited silt is cleaned, the water outlet speed can be increased, the flushing quantity is increased, and the purpose of high-efficiency dredging is achieved; in addition, the computer 44 can also control the trolley to move freely on the track, so that the vertical seam type fishway can be completely desilted without dead angles within three hundred sixty degrees of 3, and the nozzle 54 can be an electric control nozzle or a rotary nozzle; when water replenishing measures are needed in the fishway, the computer 44 is used for controlling the water flow of the nozzle 54, so that the increment of the flow velocity can be freely changed, the fish luring water flow is increased, the fish luring efficiency is improved, and the rest steps are repeated.

As a preferred embodiment 12, the device is divided into the following three stages when in use:

in the first stage, when fish school enters the inlet in front of the fish elevator 2 from downstream, the fish blocking fence opens the inlet under the driving of a mechanical device, and after all fish schools enter, the fish blocking fence is controlled to close the inlet to prevent the fish schools from escaping; when the fish school enters the fish lifting machine 2, the winch type motor at the top of the fish lifting machine 2 starts to operate and pull the steel wire cable to slowly lift the fish box 26 until the fish school is flush with the entrance of the vertical seam type fishway 3.

In the second stage, after the fish school enters the inlet of the vertical seam type fishway 3, the gate 28 of the fish box 26 is automatically opened, and the fish school is attracted by the attraction flow generated in the fishway and begins to trace upwards; at the shoal of fish in-process of tracing to, video monitoring system lays by the fishway, and the staff connects the camera through notebook computer 44 in the room for the fish effect of crossing in the fishway of directly perceivedly appearing, and the fish that is marked by the PIT label then can carry out the statistics of quantity through PIT monitoring antenna 42, can also control portable dolly 51 and remove, opens hydraulic means 55 and carries out the moisturizing and produce the luring fish rivers, thereby improves fish efficiency.

In the third stage, as time goes on, sediment, dirt and other substances influencing the fish effect exist in the vertical seam type fishway 3, and workers need to regularly drive the movable trolley 51 to move to the sediment deposition places of the sediment and other substances in the fishway, so that concentrated dredging is performed, the service life of the fishway is prolonged, and the fish passing efficiency is improved.

Claims

1. A fishway system integrating functions of water replenishing, silt removing, detection and water level adaptation comprises a fish collecting and transporting system and is characterized in that,

the fish collecting and transporting system is sequentially and continuously provided with a fish luring fishway, a fish lifting system and a vertical seam type fishway (3) along the upward fish tracing direction, and a fish collecting system (1) is arranged in the fish luring fishway;

one side of the vertical seam type fishway (3) is provided with a video monitoring system (4) for monitoring the condition that fishes pass through the fishway, and a water supplementing and dredging system (5) is arranged above the vertical seam type fishway (3) in a sliding manner.

2. The fishway system with integrated functions of water replenishing, silt removing, detecting and water level adapting as claimed in claim 1, wherein the fish collecting system (1) comprises an electrically opened and closed fish barricade structure.

3. The fishway system with comprehensive water replenishing, silt removing, detecting and water level adapting functions as claimed in claim 2, wherein the fish barrier structure comprises a first fish barrier (12) and a second fish barrier (15) which are symmetrically arranged, the first fish barrier (12) and the second fish barrier (15) have opposite moving directions, a first gear (14) is arranged on the inner wall (11) of the fishway close to the first fish barrier (12), a horizontal first rack (13) is arranged on the first fish barrier (12), the first rack (13) and the first gear (14) form gear transmission fit, a second gear (17) is arranged on the inner wall (11) of the fishway close to the second fish barrier (15), a horizontal second rack (16) is arranged on the second fish barrier (15), and the second rack (16) and the second gear (17) form gear transmission fit.

4. The fishway system with comprehensive water replenishing, silt removing, detecting and water level adapting functions as claimed in claim 3, wherein a first mechanical pulley (18) in sliding fit with the bottom of the fishway inner wall (11) is arranged at the bottom of the first fish barrier (12), a second mechanical pulley (19) in sliding fit with the bottom of the fishway inner wall (11) is arranged at the bottom of the second fish barrier (15), and the first gear (14) and the second gear (17) are respectively in transmission connection with an output shaft of a rotating motor.

5. The fishway system with comprehensive water replenishing, silt removing, detecting and water level adapting functions as claimed in claim 1, wherein the fish lifting system comprises a fish lifting machine (2), a top plate (23) is arranged at the top of the fish lifting machine (2), a first hoisting motor (21) and a second hoisting motor (22) are respectively arranged on the upper side of the top plate (23), a fish box (26) with an open top is arranged below the top plate (23), lifting zippers (27) are respectively arranged on two opposite sides of the top of the fish box (26), a first steel wire rope (24) is arranged in the middle of the lifting zipper (27) on one side, the other end of the first steel wire rope (24) is in winding fit with a rotor of the first hoisting motor (21), a second steel wire rope (25) is arranged in the middle of the lifting zipper (27) on the opposite side, and the other end of the second steel wire rope (25) is in winding fit with a rotor of the second hoisting motor (22).

6. The fishway system with the functions of water replenishing, silt removing, detection and water level adaptation as claimed in claim 5, wherein the fishway (26) is provided with an openable gate (28) on one side wall and the other side wall, and the fishway (26) is provided with a plurality of water outlet holes (29) along the opening on the wall, and the side wall is close to the top opening.

7. The fishway system with comprehensive water replenishing, silt removing, detecting and water level adapting functions as claimed in claim 1, wherein the video monitoring system (4) comprises a monitoring chamber tightly attached to the vertical seam type fishway (3), a monitoring window capable of observing the inside of the fishway is arranged on one side of the wall of the vertical seam type fishway (3) and is provided with a camera (45) with a camera right facing the monitoring window, a foot rest (46) is arranged below the video camera (45), a bearing table (43) is arranged in the monitoring chamber, a computer (44) is arranged on the bearing table (43), a PIT monitoring antenna (42) used for monitoring a PIT label injected into the fish is arranged at the bottom of the vertical seam type fishway (3), and the computer (44) is electrically connected with the video camera (45), the PIT monitoring antenna (42) and the water replenishing and silt removing system (5) respectively.

8. The fishway system with comprehensive water replenishing, silt removing, detecting and water level adapting functions as claimed in claim 7, wherein a ladder (41) for entering a room is arranged on one side of the monitoring room, a power supply (47) is arranged in the monitoring room, and the power supply (47) is electrically connected with the video camera (45), the computer (44) and the PIT monitoring antenna (42) respectively.

9. The fishway system with comprehensive water replenishing, silt removing, detecting and water level adapting functions as claimed in claim 1 or 7, wherein the water replenishing and silt removing system (5) comprises a movable trolley (51), the bottom of the movable trolley (51) is in sliding fit with the top of the vertical seam type fishway (3) through a sliding rail (32) laid along the vertical seam type fishway (3), and a water tank (52), a water replenishing pipeline (56), a mounting frame (53), a hydraulic device (55) and a nozzle (54) are respectively arranged on the movable trolley (51).

10. The fishway system with comprehensive water replenishing, silt removing, detecting and water level adapting functions according to claim 9, characterized in that the water inlet end of the water tank (52) is connected with an external water source through a water replenishing pipeline (56), the water outlet end of the water tank (52) is hermetically connected with the water inlet end of the hydraulic device (55), the hydraulic device (55) is provided with a plurality of water outlet ends through a water dividing pipe, the front side of the hydraulic device (55) is provided with a mounting frame (53), the mounting frame (53) is provided with a plurality of nozzles (54) which correspond to the water outlet ends of the hydraulic device (55) in number and positions one by one, the water outlet end of the hydraulic device (55) is hermetically connected with the corresponding nozzle (54), the nozzle (54) is positioned in the vertical slit type fishway (3), and the nozzle (54) can adjust the injection angle in an electrically controlled manner.