CN116591118A - Facility and method for assisting migratory fish to enter fishway entrance - Google Patents

Abstract

The invention discloses a facility for assisting migratory fishes to enter a fishway inlet and a method thereof, relates to the technical field of fish passing facilities, and is a technology for attracting fish shoals to smoothly enter the fishway inlet in a large range. The facility for assisting the migratory fish to enter the fishway inlet comprises a plurality of fan ring units, an air compressor, a control center, fixing piles and a flow regulating unit, wherein the fan ring units radially expand one by one from the fishway inlet to the downstream of a river, and each fan ring unit consists of a fan ring, a fish attracting device, an inductor and a bubble curtain device. The air bubble curtain device is arranged along the outer side of the fan ring, the air compressor is connected with the air bubble curtain device through a pipeline, and the control center is in communication connection with the fish attracting device, the inductor, the air bubble curtain device and the air compressor. The invention has the advantage of sound and light integrated fish attracting, is beneficial to long-distance discovery of the migratory fish shoals and smooth arrival at the fishway entrance, and has important significance for protecting fish resources and promoting the ecological civilization construction of water.

Description

Facility and method for assisting migratory fish to enter fishway entrance

Technical Field

The invention relates to the technical field of fish passing facilities, in particular to a facility for assisting migration fish to enter a fishway entrance and a method thereof.

Background

Fishways are fish-passing structures that help fish and other aquatic organisms migrate freely in order to restore and regulate the connectivity of the river system. How to make fish enter the fishway entrance rapidly and pass through the fishway successfully is a scientific problem to be solved by the current engineering fishway. Engineering fish ways typically use physical barriers to guide fish around the migration barrier, but physical barriers are prone to blockage, require periodic cleaning and maintenance, and are labor and financial intensive. In contrast, a non-physical barrier is able to attract fish shoals to the fishway entry by stimulating fish behavior. Non-physical barriers include light, underwater sound, bubble curtains, electronic barriers, etc., which have the advantage of being inexpensive, maintenance-free and pollution-free to the river.

The invention patent with the application number of 201410629415.5 discloses a shore seamless fish driving device for a fish guiding system, which is used for realizing shore seamless connection of the fish guiding system by matching a physical fish guiding grid with a fish attracting technology. The invention patent application number 201520002572.3 discloses an acousto-optic integrated fishway ecological fish guiding system, which comprises a fish passing groove for communicating a downstream fishway and an upstream fishway, wherein the fish passing efficiency is improved by arranging a sound field generating device and a bubble curtain device on one side of the fish passing groove and arranging a light inducing lamp on the other side of the fish passing groove. The invention patent with the application number of 202120981757.9 discloses novel equipment for driving fish, achieves the driving effect by adopting an acoustic-optical-bubble curtain combined technology, and solves the problem that the traditional bubble curtain interception technology cannot play a role in driving at night and under water with low visibility.

The defects of the prior art are that:

(1) The prior fishway inlet auxiliary technology has poor actual effect, so that the shoal of fish is difficult to enter the fishway inlet, or the shoal of fish enters the fishway inlet and possibly stays or turns back at the fishway inlet, but does not directly enter the fishway inlet;

(2) The fish attracting and driving facilities or devices at the fishway inlets are not suitable for a large-scale water area and are only used at the fishway inlets;

(3) Most fishway import fish luring devices are low in intelligent degree, limited in attraction effect and high in maintenance cost.

Disclosure of Invention

The invention aims to: in order to overcome the defects of the existing fishway fish-attracting technology and improve the probability of the migratory fish to find and enter the fishway inlet, thereby improving the fish-passing effect of the fishway and protecting the diversity of aquatic ecosystems, the invention provides a facility for assisting the migratory fish to enter the fishway inlet and a method thereof.

The technical scheme is as follows: the invention solves the technical problem that the facility for assisting the migration fish to enter the fishway entrance comprises a plurality of fan ring units, an air compressor, a control center, fixing piles and a flow regulating unit.

The fan ring unit consists of a fan ring, a fish attracting device, an inductor and a bubble curtain device. The fish-attracting device is characterized in that the fan ring units radially expand one by one from the fishway inlet to the downstream of the river, the inner sides of the fan ring units close to the fishway inlet are connected with the fishway inlet bottom plate, the fan rings are fixedly arranged on the river bed, sand grains and water grass imitating the river bed are arranged on the surface of the fan rings, the fish-attracting device, the inductor and the air bubble curtain device are arranged at the top of the fan rings, and the fish-attracting device, the inductor and the air bubble curtain device are sequentially arranged in each fan ring unit in an arc shape from the inner side to the outer side of the fan ring.

The fish attracting device is sealed at the top of the fan ring by adopting a transparent material, so that the fish attracting device is not affected, sand and stone abrasion are prevented from damaging the fish attracting device, and the service life of the fish attracting device is prolonged.

The bubble curtain device is arranged along the outer side of the fan ring and consists of a bubble curtain pipe, a nozzle, an air inlet pipe and a flash color ribbon. The air bubble curtain pipe is provided with a plurality of micro nozzles, the spacing between adjacent nozzles is not required, and the air bubble curtain pipe is communicated with an outlet of the air compressor through an air inlet pipe; the nozzle is provided with a sand-proof cover plate, and converts high-pressure air generated by the air compressor into a bubble curtain; the flashing color belt is arranged beside the bubble curtain tube and used for enhancing the visual effect of the bubble curtain screen.

The air compressor is connected with the bubble curtain device through a pipeline, and the air compressor is installed on the river bank.

The fixed pile comprises a drill rod, a tubular pile, a ratchet mechanism, a driving gear, a rack and a fixed anchor, wherein the drill rod is driven by a motor to drill holes in a riverbed, the tubular pile is sunk into the drilled holes under the action of dead weight, threads of a fixed fan ring unit are arranged at the top of the tubular pile, the tubular pile is of a hollow structure, a plurality of holes are formed in the side face of the tubular pile, and a set of ratchet mechanism is arranged in the tubular pile along the axial direction at certain intervals. The ratchet mechanism consists of a pawl on the outer wall surface of the drill rod and a ratchet wheel on the inner wall surface of the driving gear. The outer wall surface of the drill rod is provided with pawls forming a ratchet mechanism at certain intervals. The inner wall surface of the driving gear is provided with a ratchet wheel forming a ratchet mechanism. The fixed anchor can extend out of the pipe pile from the hole of the pipe pile through the anticlockwise rotation driving of the driving gear, and a rack is arranged on one side, close to the ratchet mechanism, of the fixed anchor. The outer end of the fixed anchor is right opposite to the hole on the side face of the tubular pile.

The flow regulating unit comprises a flow dividing wall, a hydraulic automatic gate, a water passing channel and a damping torque hinge. The water distribution wall is provided with a plurality of water channels, and the hydraulic automatic gate is arranged on the water facing surface of the water distribution wall through a damping torque hinge. The width of the hydraulic automatic gate is larger than that of the water channel.

The control center is in communication connection with the fish attracting device, the inductor, the bubble curtain device and the air compressor, and controls the running states of the fish attracting device, the inductor, the bubble curtain device, the flash color ribbon and the air compressor.

In the invention, the fish attracting device comprises a fish attracting lamp belt and an electromagnetic resonator, wherein the fish attracting lamp belt consists of a strip-shaped LED fish attracting lamp capable of changing the light color, and the electromagnetic resonator simulates the sound emitted by fish by adjusting the electromagnetic frequency.

In the invention, the upper and lower surfaces of the anchor are attached to the upper and lower edges of the hole of the pipe pile, and the outer end of the anchor is fan-shaped. The rack of the fixed anchor is just meshed with the driving gear.

In the invention, when the drill rod rotates clockwise, a pawl hinged to the outer wall of the drill rod slides over the ratchet wheel, and the driving gear and the fixed anchor are kept in the tubular pile. After the drill rod and the tubular pile reach the maximum depth, the pawls of each set of ratchet mechanism clamp the ratchet wheels of the corresponding ratchet mechanism by rotating the drill rod anticlockwise, and drive the corresponding driving gear to rotate anticlockwise, so that the driving gear drives the rack to push the anchor out of the hole of the tubular pile and insert sediment.

In the invention, the hydraulic automatic gate rotates to adjust the opening and closing angle through the damping torque hinge under the hydraulic action.

Preferably, the sensor is arranged on the back water side of the fish attracting device and the water facing side of the bubble curtain device and is closer to the fish attracting device.

Preferably, the nozzles are all miniature nozzles, the nozzles are provided with sand-proof cover plates, and the rotating shafts of the cover plates are positioned on the water facing side.

Preferably, the number of the fan ring units is determined according to the width of the river channel near the downstream of the fishway inlet, and the curvature of the fan ring is determined according to the number of the fan ring units and the curvature degree of the river channel.

Preferably, the fish attracting device and the inductor are all arranged in a ring shape according to the shape of a fan ring.

Preferably, the bubble curtain device is arranged in a necking U shape along the edge of the fan ring unit.

Preferably, the distance between each set of ratchet mechanisms is equal to the distance between each set of anchors arranged along the axial direction of the pipe pile.

Preferably, each set of anchors consists of three said anchors, and the angle between the shanks of the anchors is 60 °.

Preferably, the outer end structure of the anchor is fan-shaped, so that the stress area of the anchor and the riverbed sediment can be increased.

Preferably, each set of ratchet mechanism is located in the same plane perpendicular to the drill pipe and the pipe pile as the corresponding drive gear and the anchor.

Preferably, the fish attracting device is sealed in a transparent material protruding from the top of the fan ring, and the transparent material is made of transparent resin.

Preferably, small holes are formed in the surface of the fan ring, the small holes can ensure that substances are exchanged between the fan ring and a river bed, and sediment and aquatic plants imitating the river bed are arranged on the surface of the fan ring. Sediment can increase the roughness of the river bed and reduce the flow velocity. The aquatic weed can promote ecological effect.

The technical scheme provided by the invention also comprises an operation method of facilities for assisting the migratory fish to enter the fishway inlet, and the operation method comprises the following steps:

(1) firstly, a command is sent by the control center to start a fish attracting device and an inductor of a fan ring unit of the downstream outermost ring to attract and induce the migratory fish;

(2) when the sensor of the fan ring unit of the outermost ring senses a large number of signals for fish to pass through, the signals are transmitted to the control center, the control center sends an opening signal instruction to the air compressor and the flashing color belt of the fan ring unit of the outermost ring, the air compressor starts to operate and transmits high-pressure air to the air bubble curtain pipe of the fan ring unit of the outermost ring through the air inlet pipe of the fan ring unit of the outermost ring, and the high-pressure air is emitted from the nozzle in water to form an air bubble curtain barrier; at this time, the control center starts the fish attracting device and the inductor of the inner ring fan ring unit adjacent to the outermost ring fan ring unit to induce migration fish to enter the inner ring fan ring unit;

(3) when the sensor of the fan ring unit of the inner ring senses a signal for a large number of fish schools to pass through, the signal is transmitted to the control center, the control center sends an opening signal instruction to the air compressor and the flashing color ribbon of the fan ring unit of the inner ring, the air compressor starts to operate and transmits high-pressure air to the air bubble curtain pipe of the fan ring unit of the inner ring through the air inlet pipe of the fan ring unit of the inner ring, and the high-pressure air is emitted from the nozzle in water to form an air bubble curtain barrier; at this time, the control center opens the fish attracting device and the inductor of the inner two-ring fan ring unit adjacent to the inner one-ring fan ring unit to induce the migration fish to enter the inner two-ring fan ring unit;

(4) when the sensor of the fan ring unit of the inner two rings senses a signal for a large number of fish schools to pass through, the signal is transmitted to the control center, the control center sends an opening signal instruction to the air compressor and the flashing color ribbon of the fan ring unit of the inner two rings, the air compressor starts to operate and transmits high-pressure air to the air bubble curtain tube of the fan ring unit of the inner two rings through the air inlet tube of the fan ring unit of the inner two rings, and the high-pressure air is emitted from the nozzle in water to form an air bubble curtain barrier; at this time, the control center opens the fish attracting device and the inductor of the inner three-ring fan ring unit adjacent to the inner two-ring fan ring unit to induce the migration fish to enter the inner three-ring fan ring unit;

(5) the method comprises the steps that when an air inlet pipe of an inner ring fan ring unit conveys high-pressure air to an air bubble curtain pipe of the inner ring fan ring unit to form an air bubble curtain barrier, a control center sends a closing signal instruction to an air compressor and a flash color ribbon of an outermost ring fan ring unit, and the air inlet pipe of the outermost ring stops air inlet and the flash color ribbon stops emitting light; the control center sends a closing signal instruction to the air compressor and the flashing color belt of the inner ring fan ring unit while the air inlet pipe of the inner ring fan ring unit conveys high-pressure air to the air bubble curtain pipe of the inner ring fan ring unit to form an air bubble curtain barrier, and the air inlet pipe of the inner ring fan ring unit stops air inlet and the flashing color belt stops emitting light;

when the inductors of the inner ring fan ring units and the outer ring fan ring units adjacent to each other cannot sense the signals passing by the fish shoals, the control center starts the fish attracting device and the inductor of the outer ring fan ring unit again to attract and sense fishes at the downstream of the river channel;

(6) according to the modes (1) - (5), a plurality of fan ring units are operated one by one from the downstream of the river channel to the direction of the fishway inlet until the operation of the fan ring units connected with the fishway inlet is completed, namely, an operation process of assisting the migratory fish to enter the fishway inlet is realized;

(7) repeating the steps (1) - (6), and circularly entering the fish shoal into the fishway in batches.

According to the corresponding steps, the purpose that the auxiliary migration fish continuously enters the fishway entrance can be achieved.

The beneficial effects are that: the facility for assisting the migratory fish to enter the fishway entrance and the method thereof have the following beneficial effects:

(1) The fish shoal enters the facility arrangement radiation range of the auxiliary migration fish entering the fishway inlet, and the fish attracting device stimulates the sensory system of the fish by utilizing sound and light lamps, so that the fish shoal can be attracted to approach; after the sensor recognizes that the fish shoal approaches, the control center opens the bubble curtain device to form a blocking bubble curtain barrier, so that the fish shoal can be blocked from leaving.

(2) The fan ring units of the invention radially expand one by one from the fishway inlet to the river, and each fan ring unit has the attraction-blocking function, thereby forming the fish attracting and driving effect, and being capable of gradually attracting and driving fish shoals from a river channel to reach the fishway inlet in a larger range.

(3) The high-pressure air generated by the air compressor is converted into the bubble curtain, the formed bubble curtain barrier can prevent the fish shoals entering the fan ring unit from leaving, meanwhile, the dissolved oxygen of the river can be increased, the water quality of the water body at the downstream of the fishway inlet is improved, and the region with sufficient dissolved oxygen is more easy to attract the fish shoals to gather.

(4) The fish attracting device and the inductor are all arranged in a ring shape according to the shape of the fan ring, and can attract and induce fish shoals from different directions.

(5) The nozzles of the invention are all micro nozzles, which can ensure that the air outlet quantity of each nozzle is equivalent, thereby forming a tight and uniform bubble curtain; the nozzle is provided with the sand-proof cover plate, the rotating shaft of the cover plate is positioned on the water facing side, and the cover plate can be sealed under the action of upstream incoming flow impulse force under the condition that the air compressor is closed, so that the nozzle is prevented from being blocked by sand.

(6) The upper and lower surfaces of the anchor of the invention are attached to the upper and lower edges of the hole of the pipe pile, so that the stability of the pipe pile can be enhanced.

(7) The ratchet mechanism of the invention does not affect the drill rod drilling process and simultaneously can open the anchor by slightly rotating the drill rod counterclockwise.

(8) The facilities for assisting the migratory fishes to enter the fishway entrance are uniformly and coordinately controlled by the control center, so that the backtracking of the fish shoals from batch to batch can be realized, the intelligent degree is high, and the technical progress of the intelligent fishway is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a layout of the installation of the invention for assisting the entry of a migratory fish into a fishway;

FIG. 2 is a schematic view of the installation of the invention for assisting the entry of a migratory fish into a fishway;

FIG. 3 is a schematic view of a fan ring unit of the present invention;

FIG. 4 is a schematic view of the initial state of the fixing pile according to the present invention;

FIG. 5 is a schematic view of the fixing pile according to the present invention after fixing;

FIG. 6 is a schematic diagram of the pawl, ratchet, drive gear and anchor drive relationship of the present invention;

FIG. 7 is a schematic illustration of the anchor of FIG. 6 after opening;

FIG. 8 is a schematic representation of a single anchor of the present invention;

FIG. 9 is a schematic view of a ratchet mechanism of the present invention;

FIG. 10 is a schematic diagram of a flow regulating unit of the present invention;

fig. 11 is a schematic view showing the opened and closed state of the hydraulic automatic gate of the flow rate regulating unit of the present invention.

In the figure: the device comprises a 1-fan ring unit, a 11-fan ring, a 12-fish attracting device, a 121-fish attracting lamp belt, a 122-electromagnetic resonator, a 13-sensor, a 14-bubble curtain device, a 141-bubble curtain tube, a 142-nozzle, a 143-air inlet pipe, a 144-flash color belt, a 2-air compressor, a 3-control center, a 4-fixing pile, a 41-drill rod, a 42-tubular pile, a 43-ratchet mechanism, a 44-driving gear, a 45-rack, a 46-fixing anchor, a 47-pawl, a 48-ratchet, a 5-flow adjusting unit, a 51-diversion wall, a 52-hydraulic automatic gate, a 53-water passing channel and a 54-damping torque hinge.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are used for clearly and completely describing the technical solutions of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, the terms "inner first ring," "inner second ring," and "inner third ring" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1:

the embodiment provides a facility for assisting the migratory fish to enter the fishway entrance.

In one embodiment, as shown in fig. 1 to 11, the facility for assisting the migration fish to enter the fishway entrance includes a fan ring unit 1, an air compressor 2, a control center 3, a fixing pile 4, and a flow rate adjusting unit 5.

Each fan ring unit 1 consists of a fan ring 11, a fish attracting device 12, an inductor 13 and a bubble curtain device 14, the fan ring units 1 radially expand one by one from a fishway inlet to a river, the inner sides of the fan ring units 1 close to the fishway inlet are connected with a fishway inlet bottom plate, the fan ring 11 is fixedly arranged on a riverbed, the fish attracting device 12, the inductor 13 and the bubble curtain device 14 are arranged at the top of the fan ring 11, and the bubble curtain device 14 is arranged along the outer sides of the fan ring 11. The surface of the fan ring 11 is provided with silt and pasture simulating a riverbed, and the top of the fan ring 11 adopts a raised acrylic ester plastic sealing fish attracting device 12. The air compressor 2 is connected with the bubble curtain device 14 through a pipeline, and the air compressor 2 is installed on the river bank.

The fixed pile 4 consists of a drill rod 41, a tubular pile 42, a ratchet mechanism 43, a driving gear 44, a rack 45 and a fixed anchor 46, wherein the drill rod 41 is driven by a motor to drill holes on a river bed, the tubular pile 42 sinks into the drilled holes under the action of dead weight, the tubular pile 42 is of a hollow structure, a plurality of holes are formed in the side face of the tubular pile 42, threads are formed in the top of the tubular pile 42, the tubular pile 42 is fixed to the fan ring unit 1 through a large nut, and pawls 47 forming the ratchet mechanism 43 are arranged on the outer wall surface of the drill rod 41 at intervals; the inner wall surface of the drive gear 44 is provided with a ratchet 48 constituting the ratchet mechanism 43; the anchor 46 is provided with a rack 45 on the side close to the ratchet mechanism 43, and the rack 45 drives the anchor 46 to push the sediment in the river from the hole on the side of the pipe pile 42 by the counterclockwise rotation of the driving gear 44.

The flow regulating unit 5 comprises a diversion wall 51, a hydraulic automatic gate 52, a water passing channel 53 and a damping torque hinge 54; a plurality of water passing channels 53 are distributed on the dividing wall 51, and a hydraulic automatic gate 52 is arranged on the upstream surface of the dividing wall 51; the width of the hydraulic automatic gate 52 is slightly larger than that of the water channel 53; the hydraulic automatic gate 52 is fixed on the dividing wall 51 through a damping torque hinge 54, and the damping torque hinge 54 can control the opening and closing angles of the hydraulic automatic gate 52 under the hydraulic action.

The control center 3 is in communication connection with the fish attracting device 12, the sensor 13, the bubble curtain device 14 and the air compressor 2, and controls the running states of the fish attracting device 12, the sensor 13, the bubble curtain device 14, the flashing color ribbon 144 and the air compressor 2.

The bubble curtain device 14 is composed of a bubble curtain tube 141, a nozzle 142, an air inlet tube 143, and a flash ribbon 144. The bubble curtain tube 141 is provided with a plurality of micro-nozzles 142, the spacing between adjacent nozzles 142 is not particularly required, and the bubble curtain tube 141 is communicated with the outlet of the air compressor 2 through the air inlet pipe 143. The nozzle 142 is provided with a sand cover plate, and the nozzle 142 converts high-pressure air generated by the air compressor 2 into a bubble curtain. A sparkling color ribbon 144 is installed beside the bubble curtain tube 141 for enhancing the visual effect of the bubble curtain barrier. The fish attracting device 12 includes a fish attracting lamp strip 121 and an electromagnetic resonator 122, the fish attracting lamp strip 121 is composed of strip-shaped LED fish attracting lamps that change the light color, and the electromagnetic resonator 122 simulates fish sound by adjusting the electromagnetic frequency.

When the drill rod 41 rotates clockwise, a pawl 47 hinged to the outer wall of the drill rod 41 slides over a ratchet wheel 48, and a driving gear 44 and a fixed anchor 46 are kept in the tubular pile 42; after the drill rod 41 and the tubular pile 42 reach the maximum depth, the pawl 47 of each set of ratchet mechanism 43 is clamped with the ratchet 48 of the corresponding ratchet mechanism 43 by rotating the drill rod 41 anticlockwise, and drives the corresponding driving gear 44 to rotate anticlockwise, and the driving gear 44 drives the rack 45 to push the anchor 46 out of the hole of the tubular pile 42.

In this embodiment, the space occupation of the fan ring unit 1 at the fishway entrance is not particularly limited, and as an embodiment, the fan ring unit 1 occupies the whole space of the fishway entrance section and is connected with the bottom plate at the fishway entrance.

In this embodiment, the number of the fan ring units 1 is not particularly limited, and is determined according to the width of the river where the fishway is located and the width of the entrance of the fishway, so that the fishes can pass through the fan ring units 1 smoothly.

In this embodiment, the arrangement positions and the number of the fixing piles 4 are not particularly limited, and the fixing of the fan ring unit 1 can be completed, the fixing piles 4 can be arranged around the fan ring unit 1, and the fixing piles 4 can also be arranged inside the fan ring unit 1, as a specific embodiment, referring to fig. 1, the fixing piles 4 are arranged at four corners of the fan ring unit 1, so as to fix the fan ring unit 1, prevent water flow scouring and movement, and further improve the stability of the whole facility.

In this embodiment, the number and arrangement of the anchors 46 are not particularly limited, and as a specific embodiment, referring to fig. 4, 5, 6 and 7, the anchors 46 are arranged in groups, each group of anchors 46 is arranged on the same plane around the drill pipe 41, the anchors are uniformly distributed, and the anchors 46 between adjacent layers are respectively distributed in parallel; as another specific embodiment, the positions of the anchors 46 are distributed annularly by taking the outer wall of the drill pipe 41 as a reference, and the anchors 46 between adjacent layers are distributed in a staggered manner.

In this embodiment, the shape of the anchor 46 is not particularly limited, and referring to fig. 8, as an embodiment, a rack 45 is disposed at one end of the anchor 46 near the driving gear 44, and the protruding end of the anchor 46 is in a fan shape, so that the contact area and friction resistance between the anchor 46 and the sediment in the river bed can be increased by the fan shape, the scouring influence of the water and sediment movement on the fixed pile 4 is reduced, and long-term stability is maintained. Referring to fig. 5, the upper and lower surfaces of the anchors 46 are fitted to the upper and lower edges of the hole of the pipe pile 42, the outer ends of the anchors 46 are in the shape of a fan, and the racks 45 of the anchors 46 are engaged with the driving gear 44.

In this embodiment, referring to fig. 9, when the drill pipe 41 rotates clockwise to drill the river bed, the drill pipe 41 drives the pawl 47 of the outer wall ratchet mechanism 43 to rotate clockwise, the pawl 47 slides past the ratchet 48 due to the special structure of the ratchet mechanism 43, the ratchet 48 of the inner wall ratchet mechanism 43 of the driving gear 44 does not rotate, and the driving gear 44 and the anchor 46 maintain the original state; when the drill rod rotates anticlockwise, the drill rod 41 drives the pawl 47 of the outer wall surface ratchet mechanism 43 to rotate anticlockwise, so that the pawl 47 clamps the ratchet 48 of the inner wall surface ratchet mechanism 43 of the driving gear 44 to drive the corresponding driving gear 44 to rotate anticlockwise, and the driving gear 44 drives the rack 45 to push the anchor 46 out of the hole of the tubular pile 42.

In the present embodiment, the inclination angle of the diversion wall 51 is not particularly limited, and the whole space of the upstream surface of the facility can be occupied, so as to realize the flow adjustment of the water flow in the facility.

In the present embodiment, the type of the damping torque hinge 54 is not particularly limited, and the opening and closing angle of the hydraulic automatic gate 52 can be automatically adjusted by means of hydraulic power, so as to control the size of the water flow passing through the water channel 53.

In the present embodiment, the connection manner of the electromagnetic resonators 122 and the fan ring 11 is not particularly limited, and the number of the electromagnetic resonators 122 is gradually reduced and the pitch is gradually reduced from the fan ring unit 1 of the outermost ring to the fan ring unit 1 connected to the fishway inlet.

In the present embodiment, the arrangement pitch of the fish attracting means 12, the inductor 13 and the bubble curtain means 14 in the fan ring unit 1 is not particularly limited, and as an embodiment, the fish attracting means 12 is arranged along the inside of the fan ring 11, the bubble curtain means 14 is arranged along the outside of the fan ring 11, and the inductor 13 is arranged at a position intermediate between the fish attracting means 12 and the bubble curtain means 14 and closer to the fish attracting means 12.

In this embodiment, a certain distance is provided between the fish attracting device 12 and the bubble curtain device 14, so that the fish shoals can be prevented from being disturbed.

In this embodiment, as a specific implementation manner, the four fan ring units 1 gradually shrink from the downstream to the fishway entrance, and the gradually shrinking fan ring units 1 can improve the probability of guiding the fish school into the fishway entrance. The fan ring unit 1 of the outermost ring is positioned at the downstream position, the fan ring unit 1 of the inner ring and the fan ring unit 1 of the inner ring are sequentially arranged from the downstream to the fishway inlet, and the fan ring 11 of the fan ring unit 1 of the inner ring is connected with the fishway inlet bottom plate.

Example 2:

the embodiment provides an operation method of a facility for assisting the migration fish to enter the fishway entrance, which comprises the following steps of:

the embodiment comprises the following steps:

s1, firstly, a control center 3 sends a command to start a fish attracting device 12 and an inductor 13 of a downstream outermost fan ring unit 1 to attract and induce migration fish.

S2, when the sensor 13 of the outermost ring fan ring unit 1 senses a large number of signals passing through fish shoals, the signals are transmitted to the control center 3, the control center 3 sends an opening signal instruction to the air compressor 2 and the flashing color ribbon 144 of the outermost ring fan ring unit 1, the air compressor 2 starts to operate and high-pressure air is transmitted to the air bubble curtain tube 141 of the outermost ring fan ring unit 1 through the air inlet tube 143 of the outermost ring fan ring unit 1, and the high-pressure air is emitted from the nozzle 142 in water to form an air bubble curtain barrier; at this time, the control center 3 turns on the fish attracting device 12 and the inductor 13 of the inner ring fan unit 1 adjacent to the outermost ring fan unit 1 to induce the migration fish to enter the inner ring fan unit 1.

S3, when the sensor 13 of the inner ring fan ring unit 1 senses a signal for a large number of fish schools to pass through, the signal is transmitted to the control center 3, the control center 3 sends an opening signal instruction to the air compressor 2 and the flashing color ribbon 144 of the inner ring fan ring unit 1, the air compressor 2 starts to operate and high-pressure air is transmitted to the air bubble curtain tube 141 of the inner ring fan ring unit 1 through the air inlet pipe 143 of the inner ring fan ring unit 1, and the high-pressure air is emitted from the nozzle 142 in water to form an air bubble curtain barrier; at this time, the control center 3 opens the fish attracting device 12 and the inductor 13 of the inner ring fan unit 1 adjacent to the inner ring fan unit 1 to induce the migration fish to enter the inner ring fan unit 1.

S4, when the sensor 13 of the inner two-ring fan ring unit 1 senses a signal for a large number of fish schools to pass through, the signal is transmitted to the control center 3, the control center 3 sends an opening signal instruction to the air compressor 2 and the flashing color ribbon 144 of the inner two-ring fan ring unit 1, the air compressor 2 starts to operate and high-pressure air is transmitted to the air bubble curtain tube 141 of the inner two-ring fan ring unit 1 through the air inlet pipe 143 of the inner two-ring fan ring unit 1, and the high-pressure air is emitted from the nozzle 142 in water to form an air bubble curtain barrier; at this time, the control center 3 opens the fish attracting device 12 and the inductor 13 of the inner three-ring fan ring unit 1 adjacent to the inner two-ring fan ring unit 1 to induce the migration fish to enter the inner three-ring fan ring unit 1.

S5, when the air inlet pipe 143 of the inner ring fan ring unit 1 conveys high-pressure air to the air bubble curtain pipe 141 of the inner ring fan ring unit 1 to form an air bubble curtain barrier, the control center 3 sends a closing signal instruction to the air compressor 2 and the flash color ribbon 144 of the outermost ring fan ring unit 1, and the air inlet pipe 143 of the outermost ring stops air inlet and the flash color ribbon 144 stops emitting light; the control center 3 sends a closing signal instruction to the air compressor 2 and the flash ribbon 144 of the inner ring fan ring unit 1 while the air inlet pipe 143 of the inner ring fan ring unit 1 transmits high-pressure air to the air bubble curtain pipe 141 of the inner ring fan ring unit 1 to form an air bubble curtain barrier, the air inlet pipe 143 of the inner ring stops air inlet, and the flash ribbon 144 stops emitting light.

When the inductors 13 of the inner ring fan ring units 1 adjacent to the inner ring fan ring unit 1 and the inner ring fan ring unit 1 of the outermost ring can not sense the signals passing through the fish shoal, the control center 3 starts the fish attracting device 12 and the inductor 13 of the fan ring unit 1 of the outermost ring again, and the attraction and the induction of the fishes at the downstream of the river channel are started.

S6, according to the modes S1-S5, a plurality of fan ring units 1 run one by one from the downstream of the river channel to the direction of the fishway inlet until the operation of the fan ring units 1 connected with the fishway inlet is completed, namely, an operation process of assisting in migration of the fishway into the fishway inlet is realized.

S7, repeating the steps S1-S6, and enabling the fish shoals to enter the fishway in a batch-by-batch mode.

According to the corresponding steps, the purpose that the auxiliary migration fish continuously enters the fishway entrance can be achieved.

Specifically, during fishway planning and construction, the scale of facilities for assisting the migratory fish to enter the fishway entrance is determined according to geological conditions, hydrologic conditions, meteorological features, river channel forms at the fishway entrance, river width, fish species passing and the like. The above described method of operation is only one specific embodiment.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments and that the present invention may be embodied in other specific forms without departing from the essential characteristics thereof. Accordingly, the embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure has been described in terms of embodiments, various modifications or additions to the described embodiments or substitutions thereof by those skilled in the art are intended to be within the scope of the invention as defined in the accompanying claims.

Claims (7)

1. The utility model provides a facility that supplementary migration fish got into fishway import, includes a plurality of fan ring unit (1), air compressor machine (2), control center (3), spud pile (4) and flow control unit (5), its characterized in that:

the fan ring unit (1) consists of a fan ring (11), a fish attracting device (12), an inductor (13) and a bubble curtain device (14);

the fan ring units (1) are radially expanded from a fishway inlet to the downstream of a river one by one, the inner sides of the fan ring units (1) close to the fishway inlet are connected with a fishway inlet bottom plate, the fan rings (11) are fixedly arranged on a river bed, sand grains and water grass imitating the river bed are arranged on the surfaces of the fan rings (11), the tops of the fan rings (11) are provided with the fish attracting devices (12), the inductors (13) and the air curtain devices (14), and the fish attracting devices (12) are sealed at the tops of the fan rings (11) by transparent materials; the bubble curtain device (14) is arranged along the outer side of the fan ring (11);

the air compressor (2) is connected with the bubble curtain device (14) through a pipeline, and the air compressor (2) is arranged on the river bank;

the fixed pile (4) consists of a drill rod (41), a tubular pile (42), a ratchet mechanism (43), a driving gear (44), a rack (45) and a fixed anchor (46); the drill rod (41) is driven by a motor to drill holes on a riverbed, the tubular pile (42) sinks into the drilled holes under the action of dead weight, threads for fixing the fanning ring unit (1) are arranged at the top of the tubular pile (42), the tubular pile (42) is of a hollow structure, a plurality of holes are formed in the side face of the tubular pile (42), and a set of ratchet mechanism (43) is arranged in the tubular pile (42) at intervals along the axial direction; the ratchet mechanism (43) consists of a pawl (47) on the outer wall surface of the drill rod (41) and a ratchet wheel (48) on the inner wall surface of the driving gear (44); a pawl (47) forming a ratchet mechanism (43) is arranged on the outer wall surface of the drill rod (41) at a certain distance; a ratchet wheel (48) forming a ratchet mechanism (43) is arranged on the inner wall surface of the driving gear (44); the fixed anchor (46) can extend out of the tubular pile (42) from the hole of the tubular pile (42) through the counterclockwise rotation driving of the driving gear (44), and a rack (45) is arranged on one side of the fixed anchor (46) close to the ratchet mechanism (43); the outer end of the fixed anchor (46) is right opposite to the hole on the side surface of the tubular pile (42);

the flow regulating unit (5) comprises a flow dividing wall (51), a hydraulic automatic gate (52), a water passing channel (53) and a damping torque hinge (54); a plurality of water passing channels (53) are distributed on the flow dividing wall (51), and the hydraulic automatic gate (52) is arranged on the water facing surface of the flow dividing wall (51) through a damping torque hinge (54); the width of the hydraulic automatic gate (52) is larger than that of the water passing channel (53);

the control center (3) is in communication connection with the fish attracting device (12), the inductor (13), the bubble curtain device (14) and the air compressor (2), and controls the running states of the fish attracting device (12), the inductor (13), the bubble curtain device (14), the flash color ribbon (144) and the air compressor (2).

2. A facility for aiding entry of a migratory fish into a fishway of claim 1, wherein: the bubble curtain device (14) consists of a bubble curtain tube (141), a nozzle (142), an air inlet pipe (143) and a flash color ribbon (144); the air bubble curtain pipe (141) is provided with a plurality of micro nozzles (142), the spacing between adjacent nozzles (142) is not specifically required, and the air bubble curtain pipe (141) is communicated with the outlet of the air compressor (2) through an air inlet pipe (143); the nozzle (142) is provided with a sand-proof cover plate, and the nozzle (142) converts high-pressure air generated by the air compressor (2) into a bubble curtain; the flashing color ribbon (144) is arranged beside the bubble curtain tube (141) and used for enhancing the visual effect of the bubble curtain screen.

3. A facility for aiding entry of a migratory fish into a fishway of claim 1, wherein: the fish attracting device (12) comprises a fish attracting lamp belt (121) and an electromagnetic resonator (122), wherein the fish attracting lamp belt (121) is composed of strip-shaped LED fish attracting lamps capable of changing lamplight colors, and the electromagnetic resonator (122) simulates sounds made by fish through adjusting electromagnetic frequency.

4. A facility for aiding entry of a migratory fish into a fishway of claim 1, wherein: the upper and lower surfaces of the fixed anchor (46) are attached to the upper and lower edges of the hole of the tubular pile (42), and the outer end of the fixed anchor (46) is fan-shaped; the rack (45) of the anchor (46) is engaged with the drive gear (44).

5. A facility for aiding entry of a migratory fish into a fishway of claim 1, wherein: when the drill rod (41) rotates clockwise, a pawl (47) hinged to the outer wall of the drill rod (41) slides over a ratchet wheel (48), and a driving gear (44) and a fixed anchor (46) are kept in the tubular pile (42); after the drill rod (41) and the tubular pile (42) reach the maximum depth, the pawl (47) of each set of ratchet mechanism (43) clamps the ratchet wheel (48) of the corresponding ratchet mechanism (43) by rotating the drill rod (41) anticlockwise, and drives the corresponding driving gear (44) to rotate anticlockwise, and the driving gear (44) drives the rack (45) to push the fixed anchor (46) out of the hole of the tubular pile (42).

6. A facility for aiding entry of a migratory fish into a fishway of claim 1, wherein: the hydraulic automatic gate (52) rotates to adjust the opening and closing angle through the damping torque hinge (54) under the hydraulic action.

7. A method of operating a facility based on the entry of the auxiliary fish into the fishway of any of claims 1 to 6, comprising the steps of:

(1) firstly, a command is sent by the control center (3) to start a fish attracting device (12) and an inductor (13) of a fan ring unit (1) of the downstream outermost ring to attract and induce the migratory fish;

(2) when the inductor (13) of the outermost ring fan ring unit (1) senses a signal for a large number of fish schools to pass through, the signal is transmitted to the control center (3), the control center (3) sends an opening signal instruction to the air compressor (2) and the flashing color belt (144) of the outermost ring fan ring unit (1), the air compressor (2) starts to operate and conveys high-pressure air to the air bubble curtain tube (141) of the outermost ring fan ring unit (1) through the air inlet tube (143) of the outermost ring fan ring unit (1), and the high-pressure air is emitted from the nozzle (142) in water to form an air bubble curtain barrier; at the moment, the control center (3) opens the fish attracting device (12) and the inductor (13) of the fan ring unit (1) of the inner ring adjacent to the fan ring unit (1) of the outermost ring to induce the migratory fish to enter the fan ring unit (1) of the inner ring;

(3) when the sensor (13) of the fan ring unit (1) of the inner ring senses a signal for a large number of fish schools to pass through, the signal is transmitted to the control center (3), the control center (3) sends an opening signal instruction to the air compressor (2) and the flash color ribbon (144) of the fan ring unit (1) of the inner ring, the air compressor (2) starts to operate and conveys high-pressure air to the bubble curtain tube (141) of the fan ring unit (1) of the inner ring through the air inlet tube (143) of the fan ring unit (1) of the inner ring, and the high-pressure air is emitted from the nozzle (142) in water to form a bubble curtain barrier; at the moment, the control center (3) opens the fish attracting device (12) and the inductor (13) of the inner two-ring fan ring unit (1) adjacent to the inner one-ring fan ring unit (1) to induce the migration fish to enter the inner two-ring fan ring unit (1);

(4) when the sensor (13) of the inner two-ring fan ring unit (1) senses a signal for a large number of fish schools to pass through, the signal is transmitted to the control center (3), the control center (3) sends an opening signal instruction to the air compressor (2) and the flash color ribbon (144) of the inner two-ring fan ring unit (1), the air compressor (2) starts to operate and conveys high-pressure air to the bubble curtain tube (141) of the inner two-ring fan ring unit (1) through the air inlet pipe (143) of the inner two-ring fan ring unit (1), and the high-pressure air is emitted from the nozzle (142) in water to form a bubble curtain barrier; at the moment, the control center (3) opens the fish attracting device (12) and the inductor (13) of the inner three-ring fan ring unit (1) adjacent to the inner two-ring fan ring unit (1) to induce the migration fish to enter the inner three-ring fan ring unit (1);

(5) the method comprises the steps that when an air inlet pipe (143) of an inner ring fan ring unit (1) conveys high-pressure air to an air bubble curtain pipe (141) of the inner ring fan ring unit (1) to form an air bubble curtain barrier, a control center (3) sends a closing signal instruction to an air compressor (2) and a flash color ribbon (144) of an outermost ring fan ring unit (1), and the air inlet pipe (143) of the outermost ring stops air inlet and the flash color ribbon (144) stops emitting light; the control center (3) sends a closing signal instruction to the air compressor (2) and the flash color belt (144) of the inner ring fan ring unit (1) when the air inlet pipe (143) of the inner ring fan ring unit (1) transmits high-pressure air to the air bubble curtain pipe (141) of the inner ring fan ring unit (1) to form an air bubble curtain barrier, the air inlet pipe (143) of the inner ring stops air inlet, and the flash color belt (144) stops emitting light;

when the inductors (13) of the adjacent inner ring and inner ring fan ring units (1) of the outermost ring fan ring unit (1) can not sense the signals passing by the fish shoals, the control center (3) opens the fish attracting device (12) and the inductors (13) of the outermost ring fan ring unit (1) again to attract and sense fishes at the downstream of the river channel;

(6) according to the modes (1) - (5), a plurality of fan ring units (1) run one by one from the downstream of the river channel to the direction of the fishway inlet until the operation of the fan ring units (1) connected with the fishway inlet is completed, namely, an operation process of assisting the migratory fish to enter the fishway inlet is realized;

(7) repeating the steps (1) - (6), and circularly entering fish shoals into the fishway in batches;

according to the corresponding steps, the purpose that the auxiliary migration fish continuously enters the fishway entrance can be achieved.