A spiral escalator fishway and its operation method

Abstract

The present invention relates to the technical field of fishways, and particularly relates to a rotary escalator fishway, which includes a fishway wing wall device installed on a dam surface. A rotary escalator device is arranged between the two side wing walls of the fishway wing wall device. The rotary escalator device is fixed between the dam surface and the two side wing walls through a lift device. A baffle and a power generation assembly are installed on the escalator A surface of the rotary escalator device. A water stop device is used for water blocking between the rotary escalator device and the dam surface. A power control system is arranged on the dam body, and the power control system provides power support for the rotary escalator device and the lift device. Among them, the lift device adjusts the height of the rotary escalator device to adapt to different water level heights.

Description

Technical Field

[0001] The present invention relates to the technical field of fishways, and particularly to a rotary escalator fishway and its operation method. Background Art

[0002] A fishway is a passage for fish migration. Currently, the attention of fishways mainly focuses on water flow to attract fish. Some change the geometric structure of the fishway to generate water flow conditions preferred by fish to attract fish to pass through. For example, a Chinese patent application with the application number CN202210859590.8 and the title of "A Fishway Migration Water Flow Control Structure", and another Chinese patent application with the application number CN201610221914.X and the title of "A Double-Side Vertical Slit Fishway with High Energy Dissipation Suitable for Bidirectional Water Flow"; there are also those that utilize the phototaxis characteristics of fish and attract fish to swim upstream through devices such as fish collection lights to achieve the effect of fish passage. For example, a Chinese patent application with the application number CN202110510421.9 and the title of "Fishway", and another Chinese patent application with the application number CN201610162253.8 and the title of "Fish Inducing Facility".

[0003] However, the inventor found that the height of the current traditional fishway is fixed and cannot adapt to changing water levels. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a rotary escalator fishway and its operation method to solve the technical problems in the background art.

[0005] Based on the above purpose, the present invention provides a rotary escalator fishway, which includes a fishway wing wall device installed on the dam surface. A rotary escalator device is arranged between the two wing walls of the fishway wing wall device. The rotary escalator device is fixed between the dam surface and the two wing walls through a lift device. A baffle and a power generation component are installed on the escalator A surface of the rotary escalator device. The rotary escalator device and the dam surface are blocked from water through a water stop device. A power control system is arranged on the dam body, and the power control system provides power support for the rotary escalator device and the lift device. Among them, the lift device adjusts the height of the rotary escalator device to adapt to different water level heights.

[0006] As an optional implementation manner, the fishway wing wall device includes wing wall bodies arranged on both sides. A lower-end infrared induction device is arranged at the bottom of the downstream wall of the wing wall body for sensing the position of the signal points on the escalator B surface and the position of the baffle; an upstream water level monitor is arranged at the top of the upstream wall of the wing wall body, and a downstream water level monitor is arranged at the top of the downstream wall of the wing wall body to respectively monitor the upstream and downstream water levels.

[0007] As an alternative embodiment, the rotary escalator device includes an escalator which has two sides, namely side A and side B. The baffle and the power generation assembly are installed on side A of the escalator to achieve the functions of fish passage and power generation. Side B of the escalator is a smooth surface for realizing the flood discharge function of the fishway. When side B of the escalator is placed in the front, a signal point of side B of the escalator is set at a position near the upstream of side B of the escalator. The rotary escalator device further includes rollers, a chain, a passive wheel, a driven wheel and a driving wheel. Each two rollers are connected by a chain. The roller meshes with the passive wheel. The passive wheel is power-connected to the driving wheel. The passive wheel and the driven wheel are respectively arranged at the higher end and the other end of the escalator.

[0008] As an alternative embodiment, the baffle and the power generation assembly include a plurality of baffles. The baffles are installed on side A of the escalator. The baffle and the power generation assembly further include a connecting telescopic rod with two ends respectively connected to side A of the escalator and the baffle. A power generation assembly is installed on the baffle for converting the kinetic energy of the upstream water flow into electric energy.

[0009] As an alternative embodiment, the lift device includes a first lift, a second lift and a third lift. The first lift is connected to a first telescopic rod, and the movable end of the first telescopic rod is connected to the passive wheel for controlling the height of the upper end of the escalator. The second lift is connected to a second telescopic rod, and the movable end of the second telescopic rod is connected to the driving wheel to fix the position of the driving wheel. The third lift is connected to a third telescopic rod, and the movable end of the third telescopic rod is connected to the driven wheel for controlling the height of the lower end of the escalator.

[0010] As an alternative embodiment, the water stop device includes a water stop fixed rod, a water stop telescopic rod, a first water stop rubber and a second water stop rubber. The water stop fixed rod is fixedly installed on the passive wheel at the upper end of the escalator. The water stop telescopic rod is fixedly installed on the driven wheel at the lower end of the escalator. The length of the water stop fixed rod and the contracted length of the water stop telescopic rod are equal to the radius of the escalator arc. One end of the first water stop rubber is fixed on the water stop fixed rod, and the other end is fixed on the dam surface. One end of the second water stop rubber is fixed on the water stop telescopic rod, and the other end is fixed on the dam surface. Both the first water stop rubber and the second water stop rubber are designed to be foldable and telescopic.

[0011] As an alternative embodiment, the power control system includes a first power distribution room, a second power distribution room and a third power distribution room which are integrally cast in the concrete dam and reserved with maintenance openings. A first motor is arranged in the first power distribution room. The first motor is connected to the first lift. A second motor is arranged in the second power distribution room. The second motor is connected to the second lift and the driving wheel. A third motor is arranged in the third power distribution room. The third motor is connected to the third lift and the water stop telescopic rod.

[0012] As the second aspect of the present invention, a method for operating a rotary escalator fishway is provided, including the following steps:

[0013] When fish passage is required, the water-stop telescopic rod extends, driving the second water-stop rubber away from the escalator, starting the escalator to rotate counterclockwise to a preset position, placing the A side of the escalator in the front of the escalator, extending the connecting telescopic rod, making the baffle stand upright on the A side of the escalator, and the water-stop telescopic rod contracts, driving the second water-stop rubber to closely adhere to the escalator to make up for the gap between the lower end of the escalator and the dam surface. The baffle and the A side of the escalator define and form a fish passage; when the fish school starts to pass through the fish passage, the upstream water level monitor and the downstream water level monitor respectively and real-time detect the changes in the upstream and downstream water levels. If the water level changes exceed the preset range, adjust the extended lengths of the first lift and the third lift to adjust the positions of the upper and lower ends of the escalator to adapt to the fish passage function under different water level conditions;

[0014] When power generation is required, the connecting telescopic rod contracts, driving the baffle to lie flat on the A side of the escalator, and the water flow impacts the power generation component to generate electricity;

[0015] When flood discharge is required, the water-stop telescopic rod extends, driving the second water-stop rubber away from the escalator, starting the escalator, and making it rotate clockwise to a preset position, placing the A side of the escalator in the back of the escalator and the B side of the escalator in the front of the escalator so that the escalator conducts flood discharge.

[0016] Advantages of the present invention: The present invention adopts an escalator-type rotating device to realize the switching between the fish passage function and the flood discharge function of the fishway; the height of the fishway is flexibly adjusted through the lift device, so that the fish passage function and the flood discharge function can both play roles under different water levels; a power generation component is installed on the front of the baffle, enabling the fishway to increase the power generation function; the water-stop device can flexibly adjust the position, and when the functions of the fishway are switched, the baffle can have a rotating space at the lower end of the escalator. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is the layout mode of the fishway device of the present invention along the river bank on the dam surface;

[0019] Figure 2 It is the sectional view of the fishway realizing the fish passage function at high upstream water level;

[0020] Figure 3 It is the sectional view of the fishway realizing the fish passage function at low upstream water level;

[0021] Figure 4 It is the sectional view of the fishway realizing the flood discharge function at high upstream water level;

[0022] Figure 5 Cross-sectional view of the fishway for flood discharge function when the upstream water level is low;

[0023] Figure 6 Cross-sectional view of the fishway for power generation function;

[0024] Figure 7 Arrangement form of the A side of the escalator when the fish passage function is realized;

[0025] Figure 8 Arrangement form of the A side of the escalator when the power generation function is realized;

[0026] Figure 9 Arrangement form of the B side of the escalator when the flood discharge function is realized;

[0027] Figure 10(a) - Figure 10(c) Side view of fish schools at different positions when the fish passage function of the fishway is realized;

[0028] Figure 11(a) - Figure 11(d) Switching process diagram of the fishway from fish passage / generation function to flood discharge function;

[0029] Figure 12 Process diagram of the baffle changing from upright to lying flat when the fishway realizes the power generation function;

[0030] Figure 13 Operating state diagram of the downstream water stop device when the water stop extends during the function conversion of the fishway.

[0031] Marked in the figure as:

[0032] 1-1, fishway wing wall; 1-2, lower infrared induction device; 1-3, upstream water level monitor; 1-4, downstream water level monitor; 2-1, A side of the escalator; 2-2, B side of the escalator; 2-3, signal point on the B side of the escalator; 2-4, roller; 2-5, chain; 2-6, passive wheel; 2-7, active wheel; 2-8, driven wheel; 3-1, baffle; 3-2, connecting telescopic rod; 3-3, power generation component; 4-1, first elevator; 4-2, first telescopic rod; 4-3, second elevator; 4-4, second telescopic rod; 4-5, third elevator; 4-6, third telescopic rod; 5-1, water stop fixing rod; 5-2, first water stop rubber; 5-3, water stop telescopic rod; 5-4, second water stop rubber; 6-1, first power distribution room; 6-2, second power distribution room; 6-3, third power distribution room; 6-4, first waterproof three-phase motor; 6-5, second waterproof three-phase motor; 6-6, third waterproof three-phase motor; 6-7, PLC controller; 6-8, first power distribution room maintenance opening; 6-9, bellows; 6-10, second power distribution room maintenance opening. Specific implementation method

[0033] To make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to specific embodiments.

[0034] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those with ordinary skills in the field to which the present invention pertains. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0035] As an embodiment of the present invention, as Figure 2 - 13 shown, the present invention provides a rotary escalator fishway, which includes a fishway wing wall device installed on the dam surface. A rotary escalator device is arranged between the two side wing walls of the fishway wing wall device. The rotary escalator device is fixed between the dam surface and the two side wing walls through a lift device. A baffle and a power generation assembly are installed on the escalator A surface 2-1 of the rotary escalator device. The rotary escalator device and the dam surface are blocked from water through a water stop device. A power control system is arranged on the dam body. The power control system provides power support for the rotary escalator device and the lift device. Among them, the lift device adjusts the height of the rotary escalator device to adapt to different water level heights.

[0036] In the embodiment of the present invention, a ladder-type rotary device is adopted to realize the switching between the fish passage and flood discharge functions of the fishway; the height of the fishway is flexibly adjusted through the lift device, so that the fish passage and flood discharge functions can play roles at different water levels; a power generation assembly is installed on the front of the baffle, so that the fishway increases the power generation function; the water stop device can flexibly adjust its position, and when the fishway function is switched, the baffle can have a rotating space at the lower end of the escalator.

[0037] In addition, the operation method of the present invention is simple and easy to manage, and the free switching of the fish passage, power generation and flood discharge functions of the fishway is realized through signal control; the present invention is an ecological-friendly device, which can reduce the floor area and save investment; the present invention can be applied to the dam surfaces of gravity dams and overflow dams, or on one side of gravity dams and overflow dams, or on the shore with a water level difference, and has high popularization value.

[0038] AsFigure 1 As shown in the layout of the fishway device of the present invention along the bank on the dam surface, a rotatable escalator fishway with adjustable height is installed on the gravity dam surface along the right bank of the river. It is fixed on the dam surface through a lift device, and the height of the escalator is adjusted through the lift device.

[0039] As an alternative embodiment, the fishway wing wall device includes wing wall bodies arranged on both sides. At the bottom position of the downstream wall of the wing wall body, a lower-end infrared induction device 1-2 is provided for sensing the position of the signal point on the B surface of the escalator; at the top position of the upstream wall of the wing wall body, an upstream water level monitor 1-3 is provided, and at the top position of the downstream wall of the wing wall body, a downstream water level monitor 1-4 is provided to monitor the upstream and downstream water levels respectively.

[0040] The fishway wing wall 1-1 is used to protect the fishway from the scouring of water flow. The lower-end infrared induction device 1-2 of the fishway wing wall 1-1 is used to sense the position of the baffle 3-1 and the signal point on the B surface of the escalator; the upstream water level monitor 1-3 is used to detect the upstream water level and transmit a signal to the computer terminal, so as to control the lifting height of the first lift 4-1 and keep the escalator at a suitable height position; the downstream water level monitor 1-4 is used to detect the downstream water level, also transmit a signal to the computer terminal, and control the third lift 4-5 to keep the lower end of the escalator at a suitable height.

[0041] As an alternative embodiment, the rotary escalator device includes an escalator. The escalator has two sides A and B. The baffle and the power generation component are installed on the A surface 2-1 of the escalator to realize the fish passage and power generation functions. The B surface 2-2 of the escalator is a smooth surface for realizing the flood discharge function of the fishway. When the B surface 2-2 of the escalator is placed in the front, a signal point on the B surface of the escalator is provided at a position close to the upstream. The rotary escalator device also includes rollers 2-4, a chain 2-5, a passive wheel 2-6, a driven wheel 2-8 and a driving wheel 2-7. Each two rollers 2-4 are connected by a chain 2-5. The roller 2-4 meshes with the passive wheel 2-6. The passive wheel 2-6 is power-connected to the driving wheel 2-7. The passive wheel 2-6 and the driven wheel 2-8 are respectively arranged at the higher end and the other end of the escalator.

[0042] The A surface 2-1 of the escalator is used to realize the fish passage function and the power generation function of the fishway; the B surface 2-2 of the escalator is used to realize the flood discharge function of the fishway; the signal point on the B surface of the escalator is used to transmit the signal that the B surface 2-2 of the escalator is completely placed in the front of the escalator; the roller 2-4 is used to mesh with the passive wheel 2-6 to drive the rolling of the escalator; the chain 2-5 is used to connect two rollers 2-4 to facilitate the roller 2-4 to turn around and change the forward direction; the passive wheel 2-6 is used to drive the roller 2-4 to move forward; the driving wheel 2-7 is used to provide power for the passive wheel 2-6.

[0043] As an alternative embodiment, the baffle and the power generation assembly include a plurality of baffles 3-1. The baffles 3-1 are installed on the A side 2-1 of the escalator, and further include connecting telescopic rods 3-2 with two ends respectively connected to the A side 2-1 of the escalator and the baffles 3-1. A power generation assembly 3-3 is installed on the baffles 3-1 for converting the kinetic energy of the upstream water flow into electric energy.

[0044] The baffle 3-1 is used to form a fish passage and facilitate the rest of fish schools; the connecting telescopic rod 3-2 is used to support the baffle 3-1 and control its lifting and lying; the power generation assembly 3-3 is used to convert the kinetic energy of the upstream water flow into electric energy, provide power support for the connecting telescopic rod 3-2, and store the excess energy for the power support of the rotary escalator device.

[0045] As an alternative embodiment, the lift device includes a first lift 4-1, a second lift 4-3 and a third lift 4-5. The first lift 4-1 is connected to a first telescopic rod 4-2, and the movable end of the first telescopic rod 4-2 is connected to the passive wheel 2-6 for controlling the height of the upper end of the escalator; the second lift 4-3 is connected to a second telescopic rod 4-4, and the movable end of the second telescopic rod 4-4 is connected to the driving wheel 2-7 to fix the position of the driving wheel 2-7; the third lift 4-5 is connected to a third telescopic rod 4-6, and the movable end of the third telescopic rod 4-6 is connected to the driven wheel 2-8 for controlling the height of the lower end of the escalator.

[0046] The first lift 4-1 is used to control the telescopic length and angle of the first telescopic rod 4-2; the first telescopic rod 4-2 is used to control the height of the upper end of the escalator; the second lift 4-3 is used to control the length and angle of the second telescopic rod 4-4; the second telescopic rod 4-4 is used to fix the position of the driving wheel 2-7; the third lift 4-5 is used to control the length of the third telescopic rod 4-6; the third telescopic rod 4-6 is used to control the height of the lower end of the escalator.

[0047] As an alternative embodiment, the water stop device includes a water stop fixed rod 5-1, a water stop telescopic rod 5-3, a first water stop rubber 5-2 and a second water stop rubber 5-4. The water stop fixed rod 5-1 is fixedly installed on the passive wheel 2-6 at the upper end of the escalator, and the water stop telescopic rod 5-3 is fixedly installed on the driven wheel 2-8 at the lower end of the escalator. The length of the water stop fixed rod 5-1 and the contracted length of the water stop telescopic rod 5-3 are equal to the radius of the escalator arc. One end of the first water stop rubber 5-2 is fixed on the water stop fixed rod 5-1, and the other end is fixed on the dam surface. One end of the second water stop rubber 5-4 is fixed on the water stop telescopic rod 5-3, and the other end is fixed on the dam surface. Both the first water stop rubber 5-2 and the second water stop rubber 5-4 are designed to be foldable and telescopic.

[0048] The water-stop fixing rod 5-1 is used to control the first water-stop rubber 5-2 at the upper end of the escalator to closely adhere to the upper end of the escalator; the first water-stop rubber 5-2 is used to make up for the gap between the upper end of the escalator and the dam surface, playing a role in water-stop. At the same time, when the height of the upper end of the escalator changes, its length is adjusted through its stretchable ability to keep it in close contact with the upper end of the escalator all the time; the water-stop telescopic rod 5-3 is used to control the position of the second water-stop rubber 5-4 at the lower end of the escalator, which can make it closely adhere to or move away from the lower end of the escalator; the second water-stop rubber 5-4 is used to make up for the gap between the lower end of the escalator and the dam surface, playing a role in water-stop. At the same time, during the process of the water-stop telescopic rod 5-3 extending, the displacement difference can be made up through its stretchable ability.

[0049] As an optional implementation manner, the power control system includes a first power distribution room 6-1, a second power distribution room 6-2 and a third power distribution room 6-3 that are integrally cast in the concrete dam and reserved with maintenance openings. A first motor is arranged in the first power distribution room 6-1, and the first motor is connected to the first elevator 4-1. A second motor is arranged in the second power distribution room 6-2, and the second motor is connected to the second elevator 4-3 and the driving wheel 2-7. A third motor is arranged in the third power distribution room 6-3, and the third motor is connected to the third elevator 4-5 and the water-stop telescopic rod 5-3.

[0050] Optionally, the first motor, the second motor and the third motor are respectively a first waterproof three-phase motor 6-4, a second waterproof three-phase motor 6-5 and a third waterproof three-phase motor 6-6.

[0051] As a specific implementation manner, three power distribution rooms are installed in the power control system. The power distribution rooms are integrally cast in the concrete dam and two maintenance openings are reserved for maintaining the motors. Each power distribution room is equipped with a motor and a PLC controller 6-7. The first power distribution room 6-1 is installed beside the first elevator 4-1, and the lines between the first power distribution room 6-1 and the first elevator 4-1 are accommodated through the corrugated pipe 6-9. The second power distribution room 6-2 is installed at the upper end position of the first power distribution room 6-1, and the lines between the second power distribution room 6-2 and the driving wheel 2-7 are accommodated through the corrugated pipe 6-9. The third power distribution room 6-3 is installed beside the second elevator 4-3, and the lines between the third power distribution room 6-3 and the third elevator 4-5 are accommodated through the corrugated pipe 6-9. Each motor is installed with a PLC controller 6-7 for receiving the signal commands sent from the computer terminal.

[0052] The two maintenance openings are respectively the power distribution room maintenance opening No. 1 6-8 and the power distribution room maintenance opening No. 2 6-10.

[0053] The first power distribution room 6-1 is used to control the telescoping of the first elevator 4-1; the second power distribution room 6-2 is used to control the telescoping of the second elevator 4-3; the third power distribution room 6-3 is used to control the telescoping of the third elevator 4-5 and the telescoping of the water-stop telescopic rod 5-3; the first waterproof three-phase motor 6-4 is used to supply power to the first elevator 4-1; the second waterproof three-phase motor 6-5 is used to supply power to the second elevator 4-3 and the driving wheel 2-7; the third waterproof three-phase motor 6-6 is used to supply power to the third elevator 4-5 and the water-stop telescopic rod 5-3; the PLC controller 6-7 is used to receive the signals transmitted by the computer terminal and control the motor to start the power supply to the elevator; the first power distribution room maintenance opening 6-8 is used to maintain the first power distribution room 6-1 and the second power distribution room 6-2; the second power distribution room maintenance opening 6-10 is used to maintain the third power distribution room 6-3.

[0054] As the second aspect of the present invention, the embodiment of the present invention also provides an operation method for a rotating escalator fishway, including the following steps:

[0055] When fish passage is required, the water-stop telescopic rod 5-3 extends, driving the second water-stop rubber 5-4 away from the escalator, starting the escalator to rotate counterclockwise to a preset position, making the escalator A surface 2-1 face the front of the escalator, the connecting telescopic rod 3-2 extends, making the baffle 3-1 stand upright on the escalator A surface 2-1, the water-stop telescopic rod 5-3 contracts, driving the second water-stop rubber 5-4 to tightly adhere to the escalator to make up for the gap between the lower end of the escalator and the dam surface, and the baffle 3-1 and the escalator A surface 2-1 define a fish passage; when the fish school starts to pass through the fishway, the upstream water level monitor 1-3 and the downstream water level monitor 1-4 respectively detect the changes in the upstream and downstream water levels in real time. If the water level changes exceed the preset range, adjust the extended lengths of the first elevator 4-1 and the third elevator 4-5 to adjust the positions of the upper and lower ends of the escalator to adapt to the fish passage function under different water level conditions;

[0056] When power generation is required, the connecting telescopic rod 3-2 contracts, driving the baffle 3-1 to lie flat on the escalator A surface 2-1, and the water flow impacts the power generation component 3-3 to generate electricity;

[0057] When flood discharge is required, the water-stop telescopic rod 5-3 extends, driving the second water-stop rubber 5-4 away from the escalator, starting the escalator, and rotating it clockwise to a preset position, making the escalator A surface 2-1 face the back of the escalator and the escalator B surface 2-2 face the front of the escalator to enable the escalator to conduct flood discharge.

[0058] To further facilitate the understanding of the embodiments of the present invention, the following embodiments are used for illustration.

[0059] Embodiment

[0060] 1. Fish passage

[0061] As Figure 7As shown in the figure, for the convenience of explanation, the baffles and connecting telescopic rods in the figure are numbered sequentially. The water-stop telescopic rod 5-3 is extended, driving the second water-stop rubber 5-4 away from the escalator, and at the same time the escalator starts to rotate counterclockwise. The baffle 3-1#1 passes through the infrared induction device 1-2 at the lower end of the fishway wing wall. The infrared induction device 1-2 at the lower end of the fishway wing wall sends a signal to the computer terminal, and the computer terminal issues an instruction to the corresponding connecting telescopic rod 3-2#1 to extend. As the connecting telescopic rod 3-2#1 extends to the set length, the baffle 3-1#1 stands upright on the A side 4-1 of the escalator. And so on, as the escalator runs, the computer terminal sends instructions to the connecting telescopic rods 3-2#2 to 3-2#7 respectively, making the baffles 3-1#2 to 3-1#7 stand upright on the A side 4-1 of the escalator; then an instruction to contract the water-stop telescopic rod 5-3 is issued, driving the second water-stop rubber 5-4 to close to the escalator, which is used to make up for the gap between the lower end of the escalator and the dam surface and play a role in blocking water; a command to stop rotating is sent to the rotary escalator device, and the escalator stops running. At this point, the A side of the escalator is placed in the front of the escalator. The baffle 3-1 stands upright on the A side of the escalator supported by the telescopic rod 3-2. The first water-stop rubber 5-2 and the second water-stop rubber 5-4 are close to the escalator, and the fishway realizes the fish-passing function. The side views of the fish school at different positions when the fishway realizes the fish-passing function can be referred to in Figure 10.

[0062] The fish school starts to pass through the fishway. The upstream water level monitor 1-3 starts to monitor the upstream water level in real time. The downstream water level monitor 1-4 monitors the downstream water level and sends the water level change signal to the computer terminal in real time. The computer terminal receives the signal. If the water level change exceeds the preset range, the computer will calculate the appropriate water level height positions at the upper end and the lower end of the escalator through the preset algorithm, and issue instructions to the first elevator 4-1 and the third elevator 4-5 to make them reach the set height, such as Figure 2 、 Figure 3 As shown in the cross-sectional view of the fish-passing function of the fishway at high and low upstream water levels, the fishway can adapt to the fish-passing function under different water level conditions.

[0063] The following further elaborates on the specific operation methods of different devices during the fish-passing function:

[0064] (1) Fishway wing wall device

[0065] The escalator starts to rotate counterclockwise. When the first row of baffles 3-1#1 passes by the infrared induction device 1-2 at the lower end of the fishway wing wall, the infrared induction device 1-2 at the lower end of the fishway wing wall sends a signal 11 to the computer terminal. The first row of connecting telescopic rods 3-2#1 extends to drive the first row of baffles 3-1#1 to stand upright on the A side of the escalator. And so on. As the escalator runs, the computer terminal sends instructions to the connecting telescopic rods 3-2#2~3-2#7 respectively, making the baffles 3-1#2~baffles 3-1#7 stand upright on the A side 4-1 of the escalator; until the seventh row of baffles 3-1#7 passes by the infrared induction device 1-2 at the lower end of the fishway wing wall, the infrared induction device 1-2 at the lower end of the fishway wing wall sends three signals. Under the control of these three signals, all seven rows of baffles 3-1 stand upright on the A side of the escalator. The first water-stop rubber and the second water-stop rubber are closely attached to the escalator. The escalator stops rotating, and the fishway starts to pass fish. The upstream water level monitor 1-3 starts to monitor the upstream water level in real time, and the downstream water level monitor 1-4 monitors the downstream water level and transmits the water level change situation to the computer terminal in real time.

[0066] (2) Rotating escalator device

[0067] The escalator starts to rotate counterclockwise until the baffle 3-1#7 is located at the infrared signal device 1-2 at the lower end of the fishway wing wall after rotating counterclockwise by the escalator. The computer receives the signal and issues an instruction to the PLC controller in the second power distribution room, ordering the second waterproof three-phase motor to stop supplying power to the driving wheel 2-7, and the escalator stops rotating. At this time, the A side of the escalator is placed in the front of the escalator, and the fishway starts to realize the fish-passing function. The layout form of the A side of the escalator when realizing the fish-passing function is as Figure 7 shown. During the fish-passing period, if the upstream water level monitor detects an increase in the water level, after the computer terminal receives the water level increase signal from the upstream water level monitor, it sends an instruction to the first elevator to rise. As the elevator rises, the height of the upper end of the escalator is raised. Due to the connection between the driving wheel 2-7 and the driven wheel 2-6, the position of the driving wheel 2-7 will rise as the height of the escalator is raised, and the second telescopic rod will also expand and contract as the position of the driving wheel 2-7 changes. Similarly, when the upstream water level drops, the rotating escalator will correspondingly lower the height of the upper end of the escalator; when the downstream water level rises, the rotating escalator will correspondingly raise the height of the lower end of the escalator; when the downstream water level drops, the rotating escalator will correspondingly lower the height of the lower end of the escalator. Therefore, the fishway can adapt to the fish-passing function under different water level conditions.

[0068] (3) Power control device

[0069] The power control device issues an instruction to the PLC controller 6-7 in the third power distribution room 6-3, commanding the third waterproof three-phase motor 6-6 to supply power to the water-stop telescopic rod 5-3. The water-stop telescopic rod 5-3 extends, driving the second water-stop rubber 5-4 away from the escalator. At the same time, an instruction is issued to the PLC controller 6-7 in the second power distribution room 6-2, commanding the second waterproof three-phase motor 6-5 to supply power to the driving wheel, and the escalator starts to rotate counterclockwise. When the baffle 3-1#7 passes by the infrared induction device 1-2 at the lower end of the fishway wing wall, a signal is sent to the computer terminal. The computer terminal issues an instruction to the PLC controller 6-7 in the third power distribution room 6-3, commanding the third waterproof three-phase motor 6-6 to supply power to the water-stop telescopic rod 5-3, driving the second water-stop rubber to closely adhere to the fishway of the escalator. At the same time, the computer terminal receives the end signal and issues an instruction to the PLC controller 6-7 in the second power distribution room 6-2, commanding the second waterproof three-phase motor 6-5 to stop supplying power to the driving wheel, and the escalator stops rotating. At this time, the fishway starts to perform the fish-passing function, and the water level monitor monitors the water levels upstream and downstream. If the upstream water level rises, the computer terminal receives the signal and issues an instruction to the PLC controller 6-7 in the first power distribution room 6-1, commanding the first waterproof three-phase motor 6-4 to supply power to the first elevator. As the first telescopic rod extends, the upper end of the rotary escalator device will be raised; if the upstream water level drops, the PLC controller 6-7 in the first power distribution room 6-1 will command the first waterproof three-phase motor 6-4 to supply power to the first elevator, controlling the first telescopic rod to descend. As the first telescopic rod contracts, the upper end of the rotary escalator device will be lowered; if the downstream water level rises, the PLC controller 6-7 in the third power distribution room 6-3 will command the third waterproof three-phase motor 6-6 to supply power to the third elevator. As the third telescopic rod extends, the lower end of the rotary escalator device will be raised; if the downstream water level drops, the PLC controller 6-7 in the third power distribution room 6-3 will command the third waterproof three-phase motor 6-6 to supply power to the third elevator. As the third telescopic rod contracts, the lower end of the rotary escalator device will be lowered. During the operation of the power control system, in case of problems such as motor failures, the staff can enter the power distribution room through the inspection opening to check, repair or replace the motor.

[0070] 2. Power Generation

[0071] As Figure 6 As shown in the cross-sectional view of the fishway realizing the power generation function. When the fishway realizes the power generation function and the fish school is no longer upstream, at this time, the A side of the escalator is placed in the front of the escalator, the baffle 3-1 stands upright on the A side of the escalator, the first water-stop rubber 5-2 and the second water-stop rubber 5-3 closely adhere to the escalator, and the connecting telescopic rod 3-2 contracts, driving the baffle 3-1 to lie flat on the A side. For reference, Figure 12Process diagram of the baffle from vertical to horizontal when the fishway realizes the power generation function. Then, the power generation component 3-3 is activated. Under the continuous scouring of the upstream water flow, the power generation component collects the kinetic energy of the water flow and converts it into electrical energy, providing power support for the extension and contraction of the telescopic rod 3-2, achieving self-sufficiency in energy, storing the excess electrical energy, and using it to provide power for the rotary escalator device and the lift device, thereby reducing the electrical energy waste of the entire fishway device. The layout form of the escalator A surface when realizing the power generation function is as Figure 8 shown.

[0072] 3. Conversion from fish passage / power generation to flood discharge

[0073] As shown in Figure 11, at the beginning, the escalator A surface is placed in the front of the escalator, the baffle 3-1 lies flat on the escalator A surface, the power generation component on the baffle is retracted into the baffle, and the second water-stop rubber at the lower end of the escalator is closely attached to the escalator. At this time, it is necessary to complete the clockwise rotation of the escalator A surface from the front of the escalator to the back of the escalator, so as to realize the conversion from the fish passage / power generation function to the flood discharge function.

[0074] Extend the water-stop telescopic rod 5-3 to drive the second water-stop rubber 5-4 away from the escalator, and at the same time, the escalator starts to rotate clockwise. Until the signal point 3-9 on the escalator B surface rotates to the position corresponding to the infrared device 1-2 at the lower end of the fishway wing wall, the infrared device 1-2 at the lower end of the fishway wing wall sends a signal to the computer terminal, and the water-stop telescopic rod 5-3 issues a contraction command to drive the second water-stop rubber 5-4 to closely attach to the escalator, which is used to make up for the gap between the lower end of the escalator and the dam surface and play a role in water-stop; and control the second waterproof three-phase motor 6-5 to stop supplying power to the driving wheel 2-7, and the escalator stops rotating. At this time, the escalator A surface is placed on the back of the escalator, the escalator B surface is placed in the front of the escalator, and the fishway completes the conversion of the escalator A surface and the escalator B surface, that is, completes the conversion from the fish passage / power generation function to the flood discharge function of the fishway. During the function conversion of the fishway, the height of the upper end or the lower end of the fishway escalator is no longer changed according to the water level change.

[0075] 4. Flood discharge

[0076] As Figure 4 , Figure 5 shown, at this time, the escalator A surface is placed on the back of the escalator, the escalator B surface is placed in the front of the escalator, the signal point 3-9 on the escalator B surface is in the position corresponding to the infrared device 1-2 at the lower end of the fishway wing wall, the fishway completes the conversion from the fish passage / power generation function to the flood discharge function, and the fishway starts to realize the flood discharge function. The layout form of the escalator B surface when the fishway realizes the flood discharge function is as Figure 9As shown. During flood discharge, the upstream water level monitor 1-3 and the downstream water level monitor 1-4 monitor the upstream and downstream water levels in real time and transmit signals to the computer terminal. The computer terminal receives the signals. If the water level change is within the set range, it will not issue lifting instructions to the first elevator 4-1 and the third elevator 4-5. If the water level change exceeds the range, the computer will calculate the optimal height positions of the upper and lower ends of the escalator through the set algorithm and issue instructions to the first elevator 4-1 and the third elevator 4-5 to reach the set height. Under the action of the elevator, the fishway can adapt to the flood discharge function under different water level conditions.

[0077] The upstream and downstream water level monitors monitor the changes in the upstream flood water level and the downstream discharge water level. If the increase or decrease in the incoming flood volume is small, and the water level change is within the set range, no lifting instructions will be issued to the first elevator 4-1 and the third elevator 4-5. If the increase or decrease in the incoming flood volume is large, and the water level change exceeds the range, the computer terminal issues lifting instructions to the first elevator 4-1 and the third elevator 4-5. After receiving the instructions, the elevator controls the extension or contraction lengths of the first telescopic rod 4-2 and the third telescopic rod 4-6 to make the upper and lower ends of the escalator at the set height.

[0078] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0079] The present invention aims to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rotary escalator fishway, comprising a fishway wing wall device installed on a dam surface, characterized in that, A rotary escalator device is arranged between the two side wing walls of the fishway wing wall device. The rotary escalator device is fixed between the dam surface and the two side wing walls through a lift device. A baffle and a power generation assembly are installed on the escalator A surface of the rotary escalator device. The rotary escalator device and the dam surface are blocked from water through a water stop device. A power control system is arranged on the dam body. The power control system provides power support for the rotary escalator device and the lift device. Among them, the lift device adjusts the height of the rotary escalator device to adapt to different water level heights; The rotary escalator device includes an escalator. The escalator has two sides, namely side A and side B. The baffle and the power generation assembly are installed on side A of the escalator, which is used to realize the functions of fish passage and power generation. Side B of the escalator is a smooth surface, which is used to realize the flood discharge function of the fishway. When side B of the escalator is placed in the front, an escalator side B signal point is arranged at a position close to the upstream on side B of the escalator. The rotary escalator device also includes rollers, chains, a passive wheel, a driven wheel and a driving wheel. Each two rollers are connected by a chain. The rollers are meshed with the passive wheel. The passive wheel is power-connected to the driving wheel. The passive wheel and the driven wheel are respectively arranged at the higher end and the other end of the escalator; The baffle and the power generation assembly include a plurality of baffles. The baffles are installed on side A of the escalator. It also includes a connecting telescopic rod with two ends respectively connected to side A of the escalator and the baffle. A power generation assembly is installed on the baffle, which is used to convert the kinetic energy of the upstream water flow into electric energy.

2. The spiral escalator fishway according to claim 1, characterized in that, The fishway wing wall device includes wing wall bodies arranged on both sides. A lower-end infrared induction device is arranged at the bottom of the downstream wall of the wing wall body, which is used to sense the position of the escalator side B signal point and the position of the baffle. An upstream water level monitor is arranged at the top of the upstream wall of the wing wall body. A downstream water level monitor is arranged at the top of the downstream wall of the wing wall body to monitor the upstream and downstream water levels respectively.

3. The fishway of the escalator according to claim 1, characterized in that, The lift device includes a first lift, a second lift and a third lift. The first lift is connected to a first telescopic rod. The movable end of the first telescopic rod is connected to the passive wheel, which is used to control the height of the upper end of the escalator. The second lift is connected to a second telescopic rod. The movable end of the second telescopic rod is connected to the driving wheel to fix the position where the driving wheel is located. The third lift is connected to a third telescopic rod. The movable end of the third telescopic rod is connected to the driven wheel, which is used to control the height of the lower end of the escalator.

4. The spiral escalator fishway according to claim 3, wherein The water stop device includes a water stop fixed rod, a water stop telescopic rod, a first water stop rubber and a second water stop rubber. The water stop fixed rod is fixedly installed on the passive wheel at the upper end of the escalator. The water stop telescopic rod is fixedly installed on the driven wheel at the lower end of the escalator. The length of the water stop fixed rod and the contracted length of the water stop telescopic rod are equal to the radius of the escalator arc. One end of the first water stop rubber is fixed on the water stop fixed rod, and the other end is fixed on the dam surface. One end of the second water stop rubber is fixed on the water stop telescopic rod, and the other end is fixed on the dam surface. Both the first water stop rubber and the second water stop rubber are designed to be foldable and telescopic.

5. The spiral escalator fishway according to claim 4, wherein The power control system includes a first power distribution room, a second power distribution room, and a third power distribution room that are integrally cast in a concrete dam and reserved with maintenance openings. A first motor is arranged in the first power distribution room, and the first motor is connected to a first elevator. A second motor is arranged in the second power distribution room, and the second motor is connected to a second elevator and a driving wheel. A third motor is arranged in the third power distribution room, and the third motor is connected to a third elevator and a water stop telescopic rod.

6. The operating method of the spiral escalator fishway according to any one of claims 1-5, characterized in that It includes the following steps: When fish passage is required, the water stop telescopic rod extends, driving the second water stop rubber away from the escalator, starting the escalator to rotate counterclockwise to a preset position, making the A side of the escalator face the front of the escalator, the connecting telescopic rod extends, making the baffle stand upright on the A side of the escalator, the water stop telescopic rod contracts, driving the second water stop rubber to tightly adhere to the escalator to make up for the gap between the lower end of the escalator and the dam surface, and the baffle and the A side of the escalator define a fish passage; when the fish group starts to pass through the fish passage, the upstream water level monitor and the downstream water level monitor respectively detect the changes in the upstream and downstream water levels in real time. If the water level change exceeds the preset range, adjust the extended lengths of the first elevator and the third elevator to adjust the positions of the upper and lower ends of the escalator to adapt to the fish passage function under different water level conditions; When power generation is required, the connecting telescopic rod contracts, driving the baffle to lie flat on the A side of the escalator, and the water flow impacts the power generation component to generate electricity; When flood discharge is required, the water stop telescopic rod extends, driving the second water stop rubber away from the escalator, starting the escalator to rotate clockwise to a preset position, making the A side of the escalator face the back of the escalator, and the B side of the escalator face the front of the escalator, so that the escalator conducts flood discharge.

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