Intelligent synchronous take-up and pay-off device for underwater cable and laying operation and maintenance method thereof

Abstract

The invention provides an intelligent synchronous take-up and pay-off device for underwater cables and a laying operation and maintenance method thereof, and relates to the technical field of water conservancy and hydropower engineering metal structures. The intelligent synchronous take-up and pay-off device comprises a plurality of gate wells arranged in rows, gate grooves are formed in the two sides of each gate well, gates are arranged in the gate grooves, gate opening equipment is arranged on the gates, and each gate comprises a plurality of gate leaf devices; a locking platform, an underwater cable take-up and pay-off platform and an underwater cable disassembly and assembly platform are arranged at the top of the gate groove and above the normal water storage level in the elevation direction from top to bottom. The gate well adopts a vertical spatial arrangement method for structural design and arrangement, a platform structure at the top of a traditional gate well is designed into a plurality of communicated platform structures different in the height direction, and system units such as mechanisms and devices which are overlapped in a plane space are arranged at platform positions with different elevations; the requirement for convenient operation and overhaul and maintenance of the gate leaf device is met, the cable winding and unwinding device is provided with a cable winding and unwinding intelligent control system, and intelligent operation of the underwater cable winding and unwinding device is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of metal structures of water conservancy and hydropower engineering, and in particular to an intelligent synchronous retractable device for underwater cables and a method for laying out and maintaining the device. Background Art

[0002] Hydropower is a clean and renewable energy source. With the advancement of hydropower technology, my country's hydropower development has made great achievements. The hydropower development pattern of various river basins in my country has basically been formed. While cascade hydropower development has brought huge economic and social benefits, it has also caused certain adverse effects on the ecological environment. Among them, the problem of reservoir water temperature stratification and the low-temperature water discharged caused by it has become the focus of attention in the industry. Stratified water extraction, as an important ecological protection measure to mitigate the impact of low-temperature water discharged from reservoirs, has been widely used in hydropower projects implemented in recent years.

[0003] After the operation of multiple projects, it was found that the existing stratified water intake technologies such as stacked beam gates and multi-layer water intakes have problems such as limited water intake range, cumbersome operation, excessive time consumption, and difficulty in management and control. These directly restrict the effect of stratified water intake and make it difficult to achieve the expected ecological and environmental protection requirements.

[0004] To this end, my country has increased its research and development efforts in the field of reservoir stratified water intake technology, committed to improving the efficiency of stratified water intake operation, and achieving the effect of accurately controlling water temperature and water quality. It has proposed a stepless stratified water intake technology that directly operates the gate leaf device underwater through a driving mechanism. Each set of driving mechanisms of this technology needs to be powered and controlled, so it is necessary to lay underwater cables to connect them. Due to the operation and maintenance needs of the gate leaf device, the underwater cable also has various operating conditions such as lifting, lowering, disassembly and assembly. At present, the gate well adopts a gate slot to top structure and directly places the cable reel on the top of the gate well. The underwater cable adopts a reel-wound cable method. In order to prevent the underwater cable from being scratched, worn and damaged by the gate slot, the reel is set in the gate slot. The reel's position will affect the gate leaf device entering or lifting out of the gate well and overlap with the locking beam placement position on the plane, making it difficult to lock the gate leaf device. In addition, due to the various beams of electricity, The cables are connected to the driving mechanisms of gate leaf devices at different elevations respectively. If the speed of the cable reel for retracting and releasing the underwater cable is not coordinated with the operating speed of the gate leaf and its opening and closing equipment, the underwater cable will be subjected to a large pulling force during the sliding process, affecting the service life of the underwater cable. Sometimes it will even be torn off, causing the driving mechanism to fail to work, thereby affecting the environmental protection effect and engineering benefits. In addition, there are many cables between the upper and lower gate leaf devices, and the operation is easy to interfere with each other, and the assembly and disassembly are also difficult. The cable reel is subjected to the pulling force of the underwater cable. If the cable reel is not firmly fixed, it is easy to slide into the gate well and cause an engineering accident. In addition, the cable retracting and releasing device and the opening and closing equipment of the gate leaf device are independently controlled, and the systematicity and coordination of the on-site operation are poor, which affects the operating efficiency of the stratified water intake equipment. Therefore, the existing technology is not perfect enough and needs to be further improved. Summary of the invention

[0005] The present invention provides an intelligent synchronous retractable device for underwater cables and a method for laying out and maintaining the same, aiming to overcome the deficiencies of the prior art.

[0006] The present invention provides the following technical solutions to achieve the above objectives:

[0007] An intelligent synchronous retractable device for underwater cables comprises a gate well, gate slots are arranged on both sides of the gate well, gates are arranged in the gate slots, gate opening equipment is arranged on the gates, the gates comprise a plurality of gate leaf devices, a locking platform, an underwater cable retractable platform and an underwater cable disassembly and assembly platform are arranged on the gate slots from top to bottom above a normal water storage level in the elevation direction; a plurality of intelligent synchronous retractable devices for underwater cables are arranged on the underwater cable retractable platform.

[0008] Furthermore, a locking beam is arranged on the locking platform; and the underwater cable retracting and releasing platform and the underwater cable disassembling and assembling platform are symmetrically arranged on both sides of the center line of the door slot.

[0009] Furthermore, the plurality of door leaf devices are independent structures or connected by a pin device.

[0010] Furthermore, the underwater cable intelligent synchronous retraction and release device includes a cable reel, which is arranged on the top surface of the swinging frame, and a cable rope limiting pulley is arranged on the side of the cable reel facing the gate well, and an underwater cable is arranged on the cable reel. The underwater cable is connected to the driving mechanism through the cable rope limiting pulley, and the driving mechanism is arranged on the gate leaf device.

[0011] Furthermore, the swing frame includes an L-shaped arm frame, which is inverted, and a hinge plate is provided at the bottom end of the vertical axis of the L-shaped arm frame. The hinge plate is connected to a hinge seat through a hinge shaft, and the hinge seat is provided on the foundation.

[0012] Furthermore, the transverse axis end of the L-shaped arm is arranged toward the gate well, and a hydraulic press head connecting plate is arranged on the side of the L-shaped arm end away from the gate well. The hydraulic press head connecting plate is connected to the hydraulic press, and the hydraulic press is arranged on the underwater cable retracting and releasing platform.

[0013] Furthermore, a limiting pulley for preventing the cable from contacting the side wall is arranged on the swinging frame toward the gate shaft and directly below the cable rope limiting pulley.

[0014] Furthermore, a frame limit baffle is provided on the side of the swing frame facing the gate shaft.

[0015] Furthermore, the underwater cable is connected to the driving mechanism through an underwater sealer.

[0016] Furthermore, the locking platform, the underwater cable retracting and releasing platform and the underwater cable disassembling and assembling platform are connected by pedestrian steps.

[0017] Furthermore, the underwater cable retracting and releasing platform is also provided with a control cabinet and a power distribution cabinet, and the control cabinet and the power distribution cabinet are electrically connected to the cable reel.

[0018] Furthermore, corridors are provided between the symmetrically arranged underwater cable disassembly and assembly platforms.

[0019] A method for laying out an intelligent synchronous retractable device for underwater cables, the method comprising dividing the types of door leaf device combination units into three types: an integral combination unit, a stacked combination unit and a single-unit combination unit according to the number of door leaf devices arranged in a gate well and the capacity of a start-stop device, wherein the integral combination unit adopts a whole-bundle hierarchical laying method, the stacked combination unit adopts a beam hierarchical laying method, and the single-unit combination unit adopts a single-bundle single-level laying method;

[0020] The whole-bundle hierarchical arrangement method is to use a bundle of underwater cables to power and control all gate leaf devices in a gate shaft;

[0021] The said beam splitting and hierarchical layout method is to divide all gate leaf devices in a gate shaft into several groups of gate leaf device units, and each stack of gate leaf device units is powered and controlled by a bundle of underwater cables;

[0022] The single-beam single-stage arrangement method is to use a bundle of underwater cables to power and control all gate leaf devices in a gate well;

[0023] There are cable connector switches on both sides of each door leaf device in the overall combination unit, and the overall combination unit is equipped with one or two sets of underwater cable intelligent synchronous retracting and releasing devices;

[0024] A limited position slide groove is provided on the upper stacked door leaf device unit of any adjacent upper and lower stacked door leaf device units in the stacked combination unit, and cable connector switches are provided on both sides of each door leaf device in the stacked combination unit. The stacked combination unit is configured with a matching number of underwater cable intelligent synchronous retractable devices according to the number of door leaf device units;

[0025] A limited position slide groove is provided on the upper door leaf device of any two adjacent upper and lower door leaf devices in the monomer combination unit, and each door leaf device in the monomer combination unit is matched with an underwater cable intelligent synchronous retracting and releasing device;

[0026] The underwater cable intelligent synchronous retractable and unretractable devices of the integral assembly unit, the stacked assembly unit and the single assembly unit are provided with a cable retractable and unretractable intelligent control system. The cable retractable and unretractable intelligent control system automatically completes the start, stop and follow-up control of the underwater cable intelligent synchronous retractable and unretractable device according to the characteristic parameters of the controlled object, tracks the speed of the gate lifting or lowering in real time, and adjusts the retractable and unretractable speed of the underwater cable in real time.

[0027] Furthermore, an upper joint, a horizontal joint and a lower joint are arranged on the surface of the cable joint switch.

[0028] Furthermore, the limiting slide groove has a U-shaped cross-section, and end plates are respectively provided on both sides of the opening end of the limiting slide groove. A hinge cover plate is provided on one end plate and the hinge cover plate is rotatably connected to the end plate, and the hinge cover plate is fixedly connected to the other end plate by bolts.

[0029] Furthermore, a rib plate is arranged on the limiting slide groove behind the end plate connected by bolts to the hinge cover plate, and the bolts pass through the end plate and are connected to the rib plate bolts.

[0030] Furthermore, a handle is provided on a side of the hinge cover away from the limiting slide groove.

[0031] Furthermore, the characteristic parameters include the gate's lifting and lowering, stop state, moving direction, moving speed, position elevation and load.

[0032] An intelligent control method for an intelligent synchronous retractable device for underwater cables, characterized in that: the intelligent control method includes real-time tracking of the start-up door-lifting or door-dropping signal of the door-opening device, and controlling the cable reel to reel in or unreel the underwater cable at the same speed as the start-up door-lifting or door-dropping speed; when a plurality of door leaf devices are successively lifted or lowered to the elevation of the underwater cable disassembly and assembly platform, the underwater cable and the door leaf device are released or connected.

[0033] An operating method of a method for laying out an intelligent synchronous retractable device for an underwater cable, the operating method comprising:

[0034] The first step is to use the door opening device to lift the door leaf device and start the underwater cable intelligent synchronous retracting and releasing device to synchronously and at the same speed to retract the underwater cable. After the door leaf device is lifted to the underwater cable disassembly and assembly platform, the underwater sealer plug-in connector is separated and the underwater cable is removed from the limit slide and / or the cable connector switch, so that the underwater cable is separated from the door leaf device above the underwater cable disassembly and assembly platform;

[0035] The second step is to lift the door leaf device above the underwater cable disassembly and assembly platform to the locking platform, fix it with the locking beam, dismantle the pin device between the door leaf devices, and then move it into the gate warehouse. For the independent door leaf device that is not connected by the pin, lift it to the locking platform and move it directly into the gate warehouse;

[0036] In the third step, after the inspection of the door leaf device is completed, the door opening device is used to assemble it on the locking platform. After the assembly is completed, it is lowered to the underwater cable disassembly and assembly platform, and then the underwater seal is connected and the underwater cable is moved into the limit slide and / or the cable joint switch;

[0037] The fourth step is to use the door opening device to lower the door leaf device while starting the underwater cable intelligent synchronous retraction and release device to synchronously and quickly lower the underwater cable to the door leaf device to the working position.

[0038] Beneficial Effects

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] 1. The gate shaft of the present invention adopts the vertical space layout method for structural design and layout, and designs a platform structure on the top of the traditional gate shaft into multiple interconnected platform structures with different height directions, and arranges the system units such as mechanisms and devices overlapping in the plane space at platform positions at different elevations, thereby meeting the requirements for convenient operation, inspection and maintenance of the gate leaf device.

[0041] 2. The underwater cable retracting and releasing device of the present invention is composed of a cable drum, a cable rope limiting pulley, a swinging frame and a frame limiting baffle, etc., wherein: the cable rope limiting pulley has a steering limiting effect on the underwater cable, so that the underwater cable can be connected to the cable connector switcher or driving mechanism of the gate device through the underwater close connector in the vertical direction after passing through the cable rope limiting pulley, which not only facilitates the connection or disconnection of the underwater cable with the gate device, but also greatly reduces the pulling effect of the lateral force of gravity on the underwater cable during its lifting process. It effectively ensures the reliable contact of the underwater seal; the underwater cable retracting and releasing device is provided with a swinging frame which has a giving way function. The underwater cable retracting and releasing device can be rotated as a whole to the outside of the gate slot through the drive of a hydraulic press, which does not affect the operation of the door leaf device entering or being lifted out of the gate slot. The frame limit baffle set on the outer edge of the gate slot can prevent the swinging frame from being offside and transmit the pulling force of the underwater cable to the foundation, preventing the underwater cable retracting and releasing device from slipping into the gate well, and effectively improving the safety of the operation of the underwater cable retracting and releasing device.

[0042] 3. The underwater cable of the present invention adopts the whole bundle grading, bundle grading, and single bundle single-stage laying methods which are adapted to three different combination unit types, namely, integral combination unit of gate leaf device, stacked combination unit, and single combination unit. The combination unit type of the gate leaf device is determined according to the number of gate leaf devices installed in each gate well of different projects, the requirements for stratified water intake operation, the capacity of the opening and closing equipment at the top of the gate well, the structure and size of the hydraulic gate well, etc., so that the underwater cable is arranged in an orderly manner and does not interfere with the gate leaf device during the lifting and lowering operation, thereby reducing the probability of dislocation and cable jumping during the retraction and release of the underwater cable, and effectively ensuring the smooth retraction and release of the underwater cable.

[0043] 4. The cable retraction and release device of the present invention is equipped with a cable retraction and release intelligent control system. The cable retraction and release intelligent control system adopts a programmable controller and a frequency conversion speed regulation device for control and drive. The control system automatically completes the start, stop and follow-up control of the cable retraction and release device according to the characteristic parameters of the controlled object (the gate's lifting and lowering, stop state, moving direction, moving speed, position elevation, load and other parameters), tracks the gate lifting or lowering speed in real time, adjusts the cable retraction and release speed in real time, keeps the two synchronized in real time, realizes the intelligent operation of the underwater cable retraction and release device, and the synchronous tracking of the gate lifting and lowering, thereby greatly improving the maintenance efficiency of the stepless stratified water intake equipment, shortening the maintenance time, increasing the economic benefits of power generation of the power station while ensuring the environmental protection benefits of downstream water supply.

[0044] 5. The inspection and maintenance of the gate leaf device of the present invention adopts the operation method of disconnecting the underwater cable from the gate leaf device on the underwater cable disassembly and assembly platform, synchronously retracting and releasing the underwater cable according to the lifting speed of the gate leaf device on the underwater cable retracting and releasing platform, and locking the gate leaf device by locking beams on the locking platform to realize disassembly and assembly of the gate leaf device, so as to realize orderly connection of assembly and disassembly processes of assembling the gate leaf device and the underwater cable connection, and the operation is simple, fast and convenient, which effectively improves work efficiency.

[0045] 6. The limiting slide groove of the present invention adopts a hinge cover plate with a handle, which is connected to the end plates on both sides by bolts to seal the open end, which can effectively prevent the underwater cable from detaching from the door leaf device during the retraction and release process, and the bolts are double-fixed by nuts at both ends, wherein one end of the bolt head is fixed to the rib plate of the limiting slide groove by a nut, and the other end of the screw is fixed to the end plates on both sides of the limiting slide groove by a nut to achieve the limitation of the underwater cable. When releasing the limitation between the underwater cable and the door leaf device, it is only necessary to remove the nut at one end of the screw to release the constraint of the hinge cover plate, and then use a tool to hook the handle and flip the hinge cover plate to open the closed end of the limiting slide groove, and the underwater cable can be removed from the limiting slide groove; oblong holes are set at the corresponding positions of the hinge cover plate and the screw rod to facilitate its embedding or extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a schematic diagram of the arrangement of embodiment 1 of the present invention;

[0047] Figure 2 yes Figure 1 AA section view;

[0048] Figure 3 yes Figure 1 BB cross-sectional view;

[0049] Figure 4 Schematic diagram of disassembling and assembling an underwater cable on an underwater cable disassembling and assembling platform according to Embodiment 1 of the present invention;

[0050] Figure 5Schematic diagram of a door leaf disassembly and assembly device on a locking platform according to Embodiment 1 of the present invention;

[0051] Figure 6 yes Figure 1 The large sample C picture;

[0052] Figure 7 yes Figure 2 Large sample D picture;

[0053] Figure 8 yes Figure 3 The large sample E drawing;

[0054] Fig. 9 yes Figure 4 The large sample F figure;

[0055] Fig.10 is a schematic diagram of the arrangement of embodiment 2 of the present invention;

[0056] Fig.11 yes Fig.10 GG cross-sectional view;

[0057] Fig.12 yes Fig.10 HH cross-sectional view;

[0058] Fig.13 Schematic diagram of disassembling and assembling an underwater cable on an underwater cable disassembling and assembling platform according to Embodiment 2 of the present invention;

[0059] Fig.14 yes Fig.10 The large sample I picture;

[0060] Fig.15 yes Fig.10 The large sample J diagram;

[0061] Fig.16 yes Fig.11 Large sample K chart;

[0062] Fig.17 yes Fig.11 Large sample L diagram;

[0063] Fig.18 yes Fig.12 The large sample M picture;

[0064] Fig.19 yes Fig.13 N large pictures;

[0065] Fig. 20 is a schematic diagram of the arrangement of embodiment 3 of the present invention;

[0066] Fig.21 yes Fig. 20 OO section view;

[0067] Fig. 22 yes Fig. 20 PP cross-sectional view;

[0068] Fig.23 Schematic diagram of disassembling and assembling an underwater cable on an underwater cable disassembling and assembling platform according to Embodiment 2 of the present invention;

[0069] Fig.24 yes Fig. 20 Large sample Q graph;

[0070] Fig.25 yes Fig.21 The large R graph;

[0071] Fig.26 yes Fig. 22 The large sample S diagram;

[0072] Fig. 27 yes Fig.23 Large sample T chart;

[0073] Fig.28 It is a cable winding control flow chart of Embodiment 1, Embodiment 2 and Embodiment 3 of the present invention;

[0074] Fig.29 It is a cable unwinding control flow chart of Embodiment 1, Embodiment 2 and Embodiment 3 of the present invention.

[0075] Figure numerals: 1-gate well; 2-gate slot; 3-gate leaf device; 4-driving mechanism; 5-underwater cable; 6-underwater cable intelligent synchronous retracting and releasing device; 7-locking platform; 8-underwater cable retracting and releasing platform; 9-underwater cable disassembly and assembly platform; 10-locking beam; 11-pedestrian steps; 12-corridor; 13-cable reel; 14-cable rope limit pulley; 15-swinging rack; 16-rack limit baffle; 17-control cabinet; 18-distribution cabinet; 19-underwater seal; 20-cable connector switch 1-hydraulic press; 21-hydraulic press; 22-hydraulic press head connecting plate; 23-L-shaped arm; 24-hinge plate; 25-hinge shaft; 26-hinge seat; 27-foundation; 28-pin device; 29-upper joint; 30-horizontal joint; 31-lower joint; 32-door machine; 33-limiting pulley to prevent cable from contacting side wall; 34-limiting slide groove; 35-handle; 36-hinge cover plate; 37-bolt; 38-end plate; 39-nut; 40-bolt head; 41-rib plate; 42-screw; 43-long round hole. DETAILED DESCRIPTION

[0076] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0077] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0078] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0079] Embodiment 1. An intelligent synchronous retractable device for underwater cables. When the gate well 1 adopts an integral combined unit type, the structure is referenced Figures 1 to 9 , including a plurality of gate wells 1 arranged in a row, gate grooves 2 are arranged on both sides of the gate well 1 in the width direction, gates are arranged in the gate grooves 2, and gate opening equipment is arranged on the gates. The gates include a plurality of gate leaf devices 3 arranged along the elevation direction, and a locking platform 7, an underwater cable retracting and releasing platform 8 and an underwater cable disassembly and assembly platform 9 are arranged from top to bottom along the elevation direction at the top of the gate groove 2 and above the normal water storage level; the underwater cable retracting and releasing platform 8 is provided with a plurality of underwater cable intelligent synchronous retracting and releasing devices 6; the underwater cable disassembly and assembly platform 9 is symmetrically arranged on both sides of the center line of the gate groove 2. The locking platform 7 is provided with a locking beam 10. The gate leaf devices 3 are connected by a pin device 28. The gate opening equipment includes a door machine 32, a trolley, etc. By dividing the platform into a locking platform 7, an underwater cable retracting and releasing platform 8 and an underwater cable disassembly and assembly platform 9 and arranging them at different elevations, it is convenient to install and deploy multiple devices and systems (such as an underwater cable intelligent synchronous retracting and releasing device 6, etc.) and allocate working space, thereby meeting the requirements for convenient operation, inspection and maintenance of the gate leaf device 3; the underwater cable 5 is disconnected from the gate leaf device 3 on the underwater cable disassembly and assembly platform 9, the underwater cable 5 is synchronously retracted and released according to the lifting speed of the gate leaf device 3 on the underwater cable retracting and releasing platform 8, and the gate leaf device 3 is locked by the locking beam 10 on the locking platform 7 to realize the operation method of disassembling and assembling the gate leaf device 3, thereby realizing the orderly connection of the assembly and disassembly processes of the connection between the assembling gate leaf device 3 and the underwater cable 5, and the operation is simple, fast and convenient, thereby effectively improving the work efficiency.

[0080] The underwater cable intelligent synchronous retracting and releasing device 6 includes a cable reel 13, which is arranged on the top surface of a swinging frame 15. A cable rope limiting pulley 14 is arranged on the side of the cable reel 1 facing the gate well 1. An underwater cable 5 is arranged on the cable reel 13. The underwater cable 5 is connected to the driving mechanism 4 through the cable rope limiting pulley 14. The driving mechanism 4 is arranged on the gate leaf device 3.

[0081] The swing frame 15 includes an L-shaped arm 23, which is inverted, and a hinge plate 24 is provided at the bottom end of the vertical axis of the L-shaped arm 23, and the hinge plate 24 is connected to a hinge seat 26 through a hinge shaft 25, and the hinge seat 26 is provided on a foundation 27. The horizontal axis of the L-shaped arm 23 is arranged toward the gate well 1, and a hydraulic press head connecting plate 22 is provided on the side of the L-shaped arm 23 away from the gate well 1, and the hydraulic press head connecting plate 22 is connected to a hydraulic press 21, and the hydraulic press 21 is arranged on the underwater cable retracting and releasing platform 8. The swing frame 15 is provided with a frame limit baffle 16 on the side facing the gate well 1. The underwater cable retracting and releasing device 6 is provided with a swinging frame 15 which has a giving way function. The underwater cable retracting and releasing device 6 can be driven by a hydraulic press 21 to rotate as a whole to the outside of the gate slot 2 without affecting the operation of the door leaf device 3 entering or being lifted out of the gate slot 2. The frame limit baffle 16 provided on the outer edge of the gate slot 2 can prevent the swinging frame 15 from being offside and transmit the pulling force of the underwater cable 5 to the foundation 27, thereby preventing the underwater cable retracting and releasing device 6 from sliding into the gate well 1, and effectively improving the safety of the operation of the underwater cable retracting and releasing device 6.

[0082] The swing frame 15 is facing the side of the gate shaft 1 and is provided with a cable-proof sidewall-contacting limiting pulley 33 just below the cable-proof limiting pulley 14. The underwater cable 5 is connected to the driving mechanism 4 through the underwater seal 19. The cable-proof limiting pulley 14 is provided to have a steering limiting effect on the underwater cable 5, so that the underwater cable 5 can be connected to the cable connector switch 20 of the gate leaf device 3 through the underwater seal 19 in the vertical direction after passing through the cable-proof limiting pulley 14. In addition to facilitating the connection or disconnection of the underwater cable 5 with the gate leaf device 3, the pulling effect of the lateral force of gravity on the underwater cable 5 during its lifting process is greatly reduced, and the contact of the underwater seal 19 is effectively guaranteed to be reliable.

[0083] The locking platform 7, the underwater cable retracting platform 8 and the underwater cable disassembling platform 9 are connected by a pedestrian staircase 11; a corridor 12 is arranged between the symmetrically arranged underwater cable disassembling platforms 9. The pedestrian staircase 11 and the corridor 12 facilitate maintenance work between the locking platform 7, the underwater cable retracting platform 8 and the underwater cable disassembling platform 9.

[0084] The underwater cable retracting and releasing platform 8 is also provided with a control cabinet 17 and a power distribution cabinet 18, which are electrically connected to the cable drum 13. The drive mechanism 4 is powered and the system is controlled by providing the control cabinet 17 and the power distribution cabinet 18 electrically connected to the cable drum 13.

[0085] The laying method of the intelligent synchronous retractable device of the underwater cable of the integral combined unit type is a whole-bundle hierarchical laying method;

[0086] The whole-bundle hierarchical arrangement method is to use a bundle of underwater cables to power and control all gate leaf devices 3 in a gate shaft 1;

[0087] There are cable connector switches 20 on both sides of each door leaf device 3 in the overall assembly unit, and the overall assembly unit is equipped with one or two sets of underwater cable intelligent synchronous retractable devices 6;

[0088] An upper connector 29 , a horizontal connector 30 and a lower connector 31 are arranged on the surface of the cable connector switch 20 .

[0089] The underwater cable intelligent synchronous retractable device 6 of the overall combined unit is provided with a cable retractable intelligent control system, which automatically completes the start, stop and follow-up control of the underwater cable intelligent synchronous retractable device 6 according to the characteristic parameters of the controlled object, tracks the speed of the gate lifting or lowering in real time, and adjusts the retractable speed of the underwater cable 5 in real time. The cable retractable intelligent control system is controlled and driven by a programmable controller and a variable frequency speed regulating device. The control system automatically completes the start, stop and follow-up control of the cable retractable device according to the characteristic parameters of the controlled object, including the lifting, stop state, moving direction, moving speed, position elevation, load and other parameters of the gate, tracks the speed of the gate lifting or lowering in real time, adjusts the retractable speed of the cable in real time, keeps the two synchronized in real time, realizes the intelligent operation of the underwater cable retractable device, and the synchronous tracking of the gate lifting, thereby greatly improving the maintenance efficiency of the stepless stratified water intake equipment, shortening the maintenance time, increasing the economic benefits of power generation of the power station and ensuring the environmental protection benefits of downstream water supply.

[0090] The motor power and control requirements of the underwater cable 5 are determined according to the number of gate devices 3 that are operated simultaneously for stratified water extraction in each sluice well, and then the cross-sectional diameter of the underwater cable 5 can be determined.

[0091] The type and specification of the cable drum 13 are determined according to the retracted and released length of the underwater cable 5 and the structural dimensions of the gate shaft 1 .

[0092] The gate leaf device 3 is an integral combined unit assembled into one by a pin shaft device 28. Two bundles of underwater cables 5 are used for power supply and control (one for use and one for backup) on both sides of the gate leaf device 3 in each gate well 1, and underwater connectors 19 are arranged on both sides and the top of the gate leaf device 3, and cable connector switches 20 are arranged on both sides of each set of gate leaf devices 3. The outer end surface of the cable connector switch 20 has an upper connector 29, a horizontal connector 30 and a lower connector 31. The horizontal connector 30 is connected to the underwater cable 5 of the driving mechanism 4 of the gate leaf device 3, the upper connector 29 is connected to the upper underwater cable 5 through the top underwater connector 19, and the lower connector 31 is connected to the lower underwater cable 5 through the underwater connector 19.

[0093] The operating method of the intelligent synchronous retractable device of the underwater cable of the integral combined unit type comprises:

[0094] The first step is to use the gantry machine 32 to lift the gate device 3 and start the underwater cable intelligent synchronous retracting device 6 to synchronously and at the same speed retract the underwater cable 5. After the gate device 3 is lifted to the underwater cable disassembly platform 9, the underwater seal 19 plug-in connector is separated and the underwater cable 5 is removed from the cable connector switch 20, so that the underwater cable 5 is separated from the gate device 3 above the underwater cable disassembly platform 9;

[0095] The second step is to lift the door leaf device 3 above the underwater cable disassembly and assembly platform 9 to the locking platform 7, fix it with the locking beam 10, disassemble the pin device 28 between the door leaf devices 3, and then move it into the gatehouse;

[0096] In the third step, the door leaf device 3 is overhauled and assembled on the locking platform 7 using the door machine 32. After the assembly is completed, it is lowered to the underwater cable disassembly platform 9, and then the underwater seal 19 is connected and the underwater cable 5 is connected to the cable connector switch 20;

[0097] The fourth step is to use the gantry crane 32 to lower the door leaf device 3 while starting the underwater cable intelligent synchronous retracting and releasing device 6 to synchronously and at the same speed lower the underwater cable 5 to the door leaf device 3 to the working position.

[0098] The control cabinet 17 is equipped with a cable retracting intelligent control system, and each set of cable retracting device 6 is equipped with a cable retracting intelligent control system. The cable retracting intelligent control system adopts a programmable controller and a variable frequency speed regulating device for control and driving. The control system automatically completes the start, stop and follow-up control of the cable retracting device according to the characteristic parameters of the controlled object (gate lifting, stop state, moving direction, moving speed, position elevation, load and other parameters), tracks the speed of gate lifting or lowering in real time, adjusts the cable retracting speed in real time, and keeps the two synchronized in real time. Thereby realizing the intelligent operation of the underwater cable retracting device and the synchronous tracking of gate lifting and lowering.

[0099] An intelligent control method for an intelligent synchronous retractable device for underwater cables, the intelligent control method includes real-time tracking of a door-lifting start or door-dropping start signal of a door machine 32, and controlling a cable reel 13 to reel in or unreel an underwater cable 5 at the same speed as the door-lifting start or door-dropping start. When a plurality of door leaf devices 3 are successively lifted or dropped to the elevation of an underwater cable disassembly and assembly platform 9, the underwater cable 5 is untied or connected with the door leaf devices 3. The intelligent control method is implemented by an intelligent control system for cable retractable and retractable, and the specific control process is as follows:

[0100] The reeling control process of the underwater cable reeling intelligent control system is as follows (e.g. Fig.28 As shown): When the door machine 32 starts to start lifting the door, it transmits the "start lifting the door" signal to the above-mentioned control system through the wireless network, and the control system "starts" the cable retracting device to rotate in the reeling direction; at the same time, the speed sensor installed on the door machine 32 detects the gate lifting speed in real time, and transmits the "speed" signal to the control system through the wireless network in real time, and the control system tracks the gate lifting speed in real time, and controls the rotation speed of the cable retracting device in real time, so that the cable reeling speed is consistent with the gate lifting speed; when the Nth door leaf device 3 is lifted to the height of the underwater cable disassembly and assembly platform 9, the door machine 32 stops lifting the door, and transmits the "stop lifting the door" signal to the control system through the wireless network. , the control system "stops" the rotation of the cable retracting device; unties the underwater cable 5 of the Nth door leaf device 3 from the door leaf device 3, and the control system "starts" the swinging frame of the cable retracting device to rotate outside the door slot to make way for the door leaf device 3; the door machine 32 continues to start the door lifting, and transmits the "restart door lifting" signal to the control system; when the Nth door leaf device 3 is lifted to the height of the locking platform 7, the door machine 32 stops lifting the door, and transmits "stop lifting the door" to the control system; unties the pin device 28 between the upper and lower door leaf devices 3, and the door machine 32 removes the Nth door leaf device 3; in this way, remove each section of the door leaf device 3 in the gate shaft 1 until all the door leaf devices 3 to be removed are removed.

[0101] The unwinding control process of the underwater cable retracting and unwinding intelligent control system is as follows (e.g. Fig.29As shown): the door machine 32 first moves the Nth door leaf device 3 to the height of the locking platform 7, fixes the pin device 28 between the upper and lower door leaf devices 3, and starts to start the door to fall. At the same time, the "start door to fall" signal is transmitted to the above-mentioned control system through the wireless network, and the control system "starts" the cable retracting device to rotate in the unwinding direction; at the same time, the speed sensor installed on the door machine 32 detects the gate falling speed in real time, and transmits the "speed" signal to the control system in real time through the wireless network. The control system tracks the gate falling speed in real time and controls the rotation speed of the cable retracting device in real time to keep the cable unwinding speed consistent with the gate falling speed; when the Nth door leaf device 3 falls to the height of the underwater cable disassembly and assembly platform 9, the door machine 32 stops falling the door, and transmits the "stop door to fall" signal through the wireless network. The network is transmitted to the control system, the control system "stops" the rotation of the cable retracting device, and connects the underwater cable 5 of the Nth door leaf device 3 to the door leaf device 3; the door machine 32 continues to start the door drop, and transmits the "start door drop again" signal to the control system, and the control system "starts" the cable retracting device to start rotating in the unwinding direction; the speed sensor on the door machine 32 transmits the "speed" signal to the control system in real time, the control system tracks the door drop speed in real time, and keeps the cable unwinding speed consistent with the door drop speed; when the gate falls to the set position elevation, the door machine 32 stops the door drop, and transmits "stop door drop" to the control system, and the control system "stops" the rotation of the cable retracting device; install each door leaf device 3 of the gate in this way until all the door leaf devices 3 to be installed are installed.

[0102] The intelligent control system for cable retraction and release adopts programmable controller and frequency conversion speed regulation device for control and drive. The control system automatically completes the start, stop and follow-up control of the cable retraction and release device according to the characteristic parameters of the controlled object (gate lifting, stopping state, moving direction, moving speed, position elevation, load and other parameters), tracks the speed of gate lifting or lowering in real time, adjusts the cable retraction and release speed in real time, keeps the two synchronized in real time, realizes intelligent operation of underwater cable retraction and release device, and synchronous tracking of gate lifting, thereby greatly improving the maintenance efficiency of stepless stratified water intake equipment, shortening the maintenance time, increasing the economic benefits of power generation of power stations while ensuring the environmental protection benefits of downstream water supply.

[0103] Embodiment 2. An intelligent synchronous retractable device for underwater cables, when the gate well 1 adopts a stacked combination unit type, the structure is referenced Figures 10 to 19, including a plurality of gate wells 1 arranged in a row, gate grooves 2 are arranged on both sides of the gate well 1 in the width direction, gates are arranged in the gate grooves 2, and gate opening equipment is arranged on the gates. The gates include a plurality of gate leaf devices 3 arranged along the elevation direction, and a locking platform 7, an underwater cable retracting and releasing platform 8 and an underwater cable disassembly and assembly platform 9 are arranged from top to bottom along the elevation direction at the top of the gate groove 2 and above the normal water storage level; the underwater cable retracting and releasing platform 8 is provided with a plurality of underwater cable intelligent synchronous retracting and releasing devices 6; the underwater cable retracting and releasing platform 8 and the underwater cable disassembly and assembly platform 9 are symmetrically arranged on both sides of the center line of the gate groove 2. The locking platform 7 is provided with a locking beam 10. The gate leaf devices 3 are connected by a pin device 28. The gate opening equipment includes a door machine 32, a trolley, etc. By dividing the platform into a locking platform 7, an underwater cable retracting platform 8 and an underwater cable disassembly and assembly platform 9 and arranging them at different elevations, it is convenient to install and deploy multiple devices and systems (such as an underwater cable intelligent synchronous retracting and releasing device 6, etc.) and allocate working space, thereby meeting the requirements for convenient operation, inspection and maintenance of the gate leaf device 3; the underwater cable 5 is disconnected from the gate leaf device 3 on the underwater cable disassembly and assembly platform 9, the underwater cable 5 is synchronously retracted and released according to the lifting speed of the gate leaf device 3 on the underwater cable retracting and releasing platform 8, and the gate leaf device 3 is locked by the locking beam 10 on the locking platform 7 to realize the operation method of disassembling and assembling the gate leaf device 3, thereby realizing the orderly connection of the assembly and disassembly processes of the connection between the assembling gate leaf device 3 and the underwater cable 5, and the operation is simple, fast and convenient, thereby effectively improving the work efficiency.

[0104] The underwater cable intelligent synchronous retracting and releasing device 6 includes a cable reel 13, which is arranged on the top surface of a swinging frame 15. A cable rope limiting pulley 14 is arranged on the side of the cable reel 1 facing the gate well 1. An underwater cable 5 is arranged on the cable reel 13. The underwater cable 5 is connected to the driving mechanism 4 through the cable rope limiting pulley 14. The driving mechanism 4 is arranged on the gate leaf device 3.

[0105] The swing frame 15 includes an L-shaped arm 23, which is inverted, and a hinge plate 24 is provided at the bottom end of the vertical axis of the L-shaped arm 23, and the hinge plate 24 is connected to a hinge seat 26 through a hinge shaft 25, and the hinge seat 26 is provided on a foundation 27. The horizontal axis of the L-shaped arm 23 is arranged toward the gate well 1, and a hydraulic press head connecting plate 22 is provided on the side of the L-shaped arm 23 away from the gate well 1, and the hydraulic press head connecting plate 22 is connected to a hydraulic press 21, and the hydraulic press 21 is arranged on the underwater cable retracting and releasing platform 8. The swing frame 15 is provided with a frame limit baffle 16 on the side facing the gate well 1. The underwater cable retracting and releasing device 6 is provided with a swinging frame 15 which has a giving way function. The underwater cable retracting and releasing device 6 can be driven by a hydraulic press 21 to rotate as a whole to the outside of the gate slot 2 without affecting the operation of the door leaf device 3 entering or being lifted out of the gate slot 2. The frame limit baffle 16 provided on the outer edge of the gate slot 2 can prevent the swinging frame 15 from being offside and transmit the pulling force of the underwater cable 5 to the foundation 27, thereby preventing the underwater cable retracting and releasing device 6 from sliding into the gate well 1, and effectively improving the safety of the operation of the underwater cable retracting and releasing device 6.

[0106] The swing frame 15 is facing the side of the gate shaft 1 and is provided with a cable-proof sidewall-contacting limiting pulley 33 just below the cable-proof limiting pulley 14. The underwater cable 5 is connected to the driving mechanism 4 through the underwater seal 19. The cable-proof limiting pulley 14 is provided to have a steering limiting effect on the underwater cable 5, so that the underwater cable 5 can be connected to the cable connector switch 20 and the driving mechanism 4 of the gate leaf device 3 through the underwater seal 19 in the vertical direction after passing through the cable-proof limiting pulley 14. In addition to facilitating the connection or disconnection of the underwater cable 5 with the gate leaf device 3, the pulling effect of the lateral force of gravity on the underwater cable 5 during its lifting process is greatly reduced, and the contact of the underwater seal 19 is effectively guaranteed to be reliable.

[0107] The locking platform 7, the underwater cable retracting platform 8 and the underwater cable disassembling platform 9 are connected by a pedestrian staircase 11; a corridor 12 is arranged between the symmetrically arranged underwater cable disassembling platforms 9. The pedestrian staircase 11 and the corridor 12 facilitate maintenance work between the locking platform 7, the underwater cable retracting platform 8 and the underwater cable disassembling platform 9.

[0108] The underwater cable retracting and releasing platform 8 is also provided with a control cabinet 17 and a power distribution cabinet 18, which are electrically connected to the cable drum 13. The drive mechanism 4 is powered and the system is controlled by providing the control cabinet 17 and the power distribution cabinet 18 electrically connected to the cable drum 13.

[0109] The laying method of the intelligent synchronous retractable device of the underwater cable of the stacked combined unit type is a beam-by-bundle hierarchical laying method;

[0110] The said beam splitting and hierarchical layout method is to divide all gate leaf devices 3 in a gate shaft 1 into several groups of gate leaf device units, and each stack of gate leaf device units is powered and controlled by a bundle of underwater cables;

[0111] A limit slot 34 is provided on the upper stacked door leaf device unit of any adjacent upper and lower stacked door leaf device units in the stacked assembly unit, and a cable connector switch 20 is provided on both sides of each door leaf device 3 in the stacked assembly unit. The stacked assembly unit is configured with a matching number of underwater cable intelligent synchronous retractable devices 6 according to the number of door leaf device units;

[0112] The limiting slide 34 is a structure with a U-shaped cross section. End plates 38 are respectively arranged on both sides of the opening end of the limiting slide 34. A hinge cover plate 36 is arranged on one end plate 38 and the hinge cover plate 36 is rotatably connected to the end plate 38. The hinge cover plate 36 is fixedly connected to the other end plate 38 by bolts 37. Ribs 41 are arranged on the rear of the end plate 38 connected by bolts 37 and on the limiting slide 34. The bolts 37 pass through the end plate 38 and are connected to the ribs 41. A handle 35 is arranged on the side of the hinge cover plate 36 away from the limiting slide 34. The bolts 37 are double-fixed by nuts 39 at both ends, wherein one end of the bolt head 40 is fixed to the ribs 41 of the limiting slide 34 by nuts 39, and the other end of the screw rod 42 is fixed to the end plates 38 on both sides of the limiting slide 34 by nuts 39 to limit the underwater cable. When releasing the limit between the underwater cable 5 and the door leaf device 3, the nut 39 at one end of the screw rod 42 is removed to release the constraint of the hinge cover plate 36, and then a tool is used to hook the handle 35 to flip the hinge cover plate 36 to open the closed end of the limit slide groove 34. An oblong hole 43 is provided at the position corresponding to the position of the hinge cover plate 36 and the screw rod 42. The limit slide 34 is provided with a hinge cover plate 36 with a handle 35 connected to its two side end plates 38 by bolts 37 to seal the open end, which can effectively prevent the underwater cable 5 from escaping from the door leaf device 3 during the retraction and release process, and the bolts 37 are double-fixed by nuts 39 at both ends, wherein one end of the bolt head 37 is fixed to the rib 41 of the limit slide 34 by a nut 39, and the other end screw 42 is fixed to the two side end plates 38 of the limit slide 34 by nuts 39 to limit the underwater cable 5. When the limit between the underwater cable 5 and the door leaf device 3 is released, it is only necessary to remove the nut 39 at one end of the screw 42 to release the constraint of the hinge cover plate 36, and then use a tool to hook the handle 35 to flip the hinge cover plate 36 to open the closed end of the limit slide 34, and the underwater cable 5 can remove the limit slide 34; an oblong hole 43 is provided at the corresponding position of the hinge cover plate 36 and the screw 42 to facilitate its insertion or extraction.

[0113] The motor power and control requirements of the underwater cable 5 are determined according to the number of gate devices 3 that are operated simultaneously for stratified water extraction in each sluice well, and then the cross-sectional diameter of the underwater cable 5 can be determined.

[0114] The type and specification of the cable drum 13 are determined according to the retracted and released length of the underwater cable 5 and the structural dimensions of the gate shaft 1 .

[0115] The door leaf device 3 is a stacked combined unit type, which is divided into 5 stacked door leaf device units. The underwater cable is laid out in a bundled and graded manner. Each stack of door leaf device units is powered and controlled by a bundle of underwater cables 5. Underwater connectors 19 are arranged on both sides and the top of the door leaf device 3, and cable connector switches 20 are arranged on both sides of each set of door leaf devices 3. The outer end surface of the cable connector switch 20 has an upper connector 29, a horizontal connector 30 and a lower connector 31. The horizontal connector 30 is connected to the underwater cable 5 of the driving mechanism 4 of the door leaf device 3. The upper connector 29 is connected to the upper underwater cable 5 through the top underwater connector 19, and the lower connector 31 is connected to the lower underwater cable 5 through the underwater connector 19. The upper stack of the door leaf device units in the adjacent upper and lower stacks of door leaf device units is provided with an openable limiting slide groove 34 to facilitate the passage of the underwater cable 5 of the lower stack of the door leaf device unit.

[0116] The underwater cable intelligent synchronous retractable device 6 of the stacked combination unit is provided with a cable retractable intelligent control system, which automatically completes the start, stop and follow-up control of the underwater cable intelligent synchronous retractable device 6 according to the characteristic parameters of the controlled object, tracks the speed of the gate lifting or lowering in real time, and adjusts the retractable speed of the underwater cable 5 in real time.

[0117] The operation method of the underwater cable intelligent synchronous retracting and releasing device of the stacked combined unit type includes: the first step, while using the door machine 32 to lift the door leaf device 3, start the underwater cable intelligent synchronous retracting and releasing device 6 to synchronously and speedily retract the underwater cable 5, after the door leaf device 3 is lifted to the underwater cable disassembly and assembly platform 9, separate the underwater seal 19 plug-in connector and remove the underwater cable 5 from the limit slide 34 and the cable connector switch 20, so that the underwater cable 5 is separated from the door leaf device 3 above the underwater cable disassembly and assembly platform 9;

[0118] The second step is to lift the door leaf device 3 above the underwater cable disassembly and assembly platform 9 to the locking platform 7, fix it through the locking beam 10, dismantle the pin device 28 between the door leaf devices 3, and then move it into the gate warehouse. For the independent door leaf device 3 that is not connected by a pin, lift it to the locking platform 7 and move it directly into the gate warehouse;

[0119] In the third step, the door leaf device 3 is overhauled and assembled on the locking platform 7 using the door machine 32. After the assembly is completed, it is lowered to the underwater cable disassembly platform 9, and then the underwater seal 19 is connected and the underwater cable 5 is moved into the limit slide 34 and connected to the cable connector switch 20;

[0120] The fourth step is to use the gantry crane 32 to lower the door leaf device 3 while starting the underwater cable intelligent synchronous retracting and releasing device 6 to synchronously and at the same speed lower the underwater cable 5 to the door leaf device 3 to the working position.

[0121] The control cabinet 17 is equipped with a cable retracting intelligent control system, and each set of cable retracting device 6 is equipped with a cable retracting intelligent control system. The cable retracting intelligent control system adopts a programmable controller and a variable frequency speed regulating device for control and driving. The control system automatically completes the start, stop and follow-up control of the cable retracting device according to the characteristic parameters of the controlled object (gate lifting, stop state, moving direction, moving speed, position elevation, load and other parameters), tracks the speed of gate lifting or lowering in real time, adjusts the cable retracting speed in real time, and keeps the two synchronized in real time. Thereby realizing the intelligent operation of the underwater cable retracting device and the synchronous tracking of gate lifting and lowering.

[0122] An intelligent control method for an intelligent synchronous retractable device for underwater cables, the intelligent control method includes real-time tracking of a door-lifting start or door-dropping start signal of a door machine 32, and controlling a cable reel 13 to reel in or unreel an underwater cable 5 at the same speed as the door-lifting start or door-dropping start. When a plurality of door leaf devices 3 are successively lifted or dropped to the elevation of an underwater cable disassembly and assembly platform 9, the underwater cable 5 is untied or connected with the door leaf devices 3. The intelligent control method is implemented by an intelligent control system for cable retractable and retractable, and the specific control process is as follows:

[0123] The reeling control process of the underwater cable reeling intelligent control system is as follows (e.g. Fig.28As shown): When the door machine 32 starts to start lifting the door, it transmits a "start lifting the door" signal to the above-mentioned control system through the wireless network, and the control system "starts" the cable retracting device to rotate in the reeling direction; at the same time, the speed sensor installed on the door machine 32 detects the gate lifting speed in real time, and transmits the "speed" signal to the control system through the wireless network in real time, and the control system tracks the gate lifting speed in real time, and controls the rotation speed of the cable retracting device in real time, so that the cable reeling speed is consistent with the gate lifting speed; when the Nth section of the door leaf device 3 is lifted to the elevation of the underwater cable disassembly and assembly platform 9, the door machine 32 stops lifting the door, and transmits the "stop lifting the door" signal to the control system through the wireless network, and the control system "stops" the rotation of the cable retracting device; the Nth section of the door leaf device 3 The underwater cable 5 is untied from the gate leaf device 3, and the underwater cable 5 of the gate leaf device 3 below the Nth section is removed from the limiting slide groove 34. The control system "starts" the swinging frame of the cable retracting device to rotate to the outside of the gate groove to make way for the gate leaf device 3; the gate machine 32 continues to start the door lifting and transmits the "restart door lifting" signal to the control system; the speed sensor on the gate machine 32 transmits the "speed" signal to the control system in real time. When the Nth section of the gate leaf device 3 is lifted to the height of the locking platform 7, the gate machine 32 stops lifting the door and transmits "stop lifting the door" to the control system, untied the pin device 28 between the upper and lower gate leaf devices 3, and the gate machine 32 removes the Nth section of the gate leaf device 3; in this way, the gate leaf devices 3 of each section in the gate shaft 1 are removed until all the gate leaf devices 3 to be removed are removed.

[0124] The unwinding control process of the underwater cable retracting and unwinding intelligent control system is as follows (e.g. Fig.29As shown): the door machine 32 first moves the Nth door leaf device 3 to the height of the locking platform 7, fixes the pin device 28 between the upper and lower door leaf devices 3, and starts to start the door to fall. At the same time, the "start door to fall" signal is transmitted to the above-mentioned control system through the wireless network, and the control system "starts" the cable retracting device to rotate in the unwinding direction; at the same time, the speed sensor installed on the door machine 32 detects the gate falling speed in real time, and transmits the "speed" signal to the control system in real time through the wireless network, the control system tracks the gate falling speed in real time, and controls the rotation speed of the cable retracting device in real time, so that the cable unwinding speed is consistent with the gate falling speed; when the Nth door leaf device 3 falls to the height of the underwater cable disassembly and assembly platform 9, the door machine 32 stops falling the door, and transmits the "stop door to fall" signal to the control system through the wireless network, and the control system The system "stops" the rotation of the cable retracting device; the underwater cable 5 of the Nth section of the door leaf device 3 is connected to the door leaf device 3, and the underwater cable 5 of the door leaf device 3 below the Nth section is moved into the limiting slide groove 34; the door machine 32 continues to start the door drop, and transmits the "restart door drop" signal to the control system, and the control system "starts" the cable retracting device to start rotating in the unwinding direction; the speed sensor on the door machine 32 transmits the "speed" signal to the control system in real time, and the control system tracks the door drop speed in real time, and keeps the cable unwinding speed consistent with the door drop speed; when the gate falls to the set position elevation, the door machine 32 stops the door drop, and transmits "stop door drop" to the control system, and the control system "stops" the rotation of the cable retracting device; install the door leaf devices 3 of each section of the gate in this way until all the door leaf devices 3 to be installed are installed.

[0125] The intelligent control system for cable retraction and release adopts programmable controller and frequency conversion speed regulation device for control and drive. The control system automatically completes the start, stop and follow-up control of the cable retraction and release device according to the characteristic parameters of the controlled object (gate lifting, stopping state, moving direction, moving speed, position elevation, load and other parameters), tracks the speed of gate lifting or lowering in real time, adjusts the cable retraction and release speed in real time, keeps the two synchronized in real time, realizes intelligent operation of underwater cable retraction and release device, and synchronous tracking of gate lifting, thereby greatly improving the maintenance efficiency of stepless stratified water intake equipment, shortening the maintenance time, increasing the economic benefits of power generation of power stations while ensuring the environmental protection benefits of downstream water supply.

[0126] Embodiment 3. An intelligent synchronous retractable device for underwater cables, when the gate well 1 adopts a monomer combination unit type, the structure is referenced Figures 20 to 27, including a plurality of gate wells 1 arranged in a row, gate grooves 2 are arranged on both sides of the gate well 1 in the width direction, gates are arranged in the gate grooves 2, and gate opening equipment is arranged on the gates. The gates include a plurality of gate leaf devices 3 arranged along the elevation direction, and a locking platform 7, an underwater cable retracting and releasing platform 8 and an underwater cable disassembly and assembly platform 9 are arranged from top to bottom along the elevation direction at the top of the gate groove 2 and above the normal water storage level; the underwater cable retracting and releasing platform 8 is provided with a plurality of underwater cable intelligent synchronous retracting and releasing devices 6; the underwater cable retracting and releasing platform 8 and the underwater cable disassembly and assembly platform 9 are symmetrically arranged on both sides of the center line of the gate groove 2. The locking platform 7 is provided with a locking beam 10. The gate leaf device 3 is an independent structure. The gate opening equipment includes a door machine 32, a trolley, etc. By dividing the platform into a locking platform 7, an underwater cable retracting platform 8 and an underwater cable disassembly and assembly platform 9 and arranging them at different elevations, it is convenient to install and deploy multiple devices and systems (such as an underwater cable intelligent synchronous retracting and releasing device 6, etc.) and allocate working space, thereby meeting the requirements for convenient operation, inspection and maintenance of the gate leaf device 3; the underwater cable 5 is disconnected from the gate leaf device 3 on the underwater cable disassembly and assembly platform 9, the underwater cable 5 is synchronously retracted and released according to the lifting speed of the gate leaf device 3 on the underwater cable retracting and releasing platform 8, and the gate leaf device 3 is locked by the locking beam 10 on the locking platform 7 to realize the operation method of disassembling and assembling the gate leaf device 3, so that the assembly and disassembly processes of the door leaf device 3 and the underwater cable 5 are connected in an orderly manner, and the operation is simple, fast and convenient, thereby effectively improving work efficiency.

[0127] The underwater cable intelligent synchronous retracting and releasing device 6 includes a cable reel 13, which is arranged on the top surface of a swinging frame 15. A cable rope limiting pulley 14 is arranged on the side of the cable reel 1 facing the gate well 1. An underwater cable 5 is arranged on the cable reel 13. The underwater cable 5 is connected to the driving mechanism 4 through the cable rope limiting pulley 14. The driving mechanism 4 is arranged on the gate leaf device 3.

[0128] The swing frame 15 includes an L-shaped arm 23, which is inverted, and a hinge plate 24 is provided at the bottom end of the vertical axis of the L-shaped arm 23, and the hinge plate 24 is connected to a hinge seat 26 through a hinge shaft 25, and the hinge seat 26 is provided on a foundation 27. The horizontal axis of the L-shaped arm 23 is arranged toward the gate well 1, and a hydraulic press head connecting plate 22 is provided on the side of the L-shaped arm 23 away from the gate well 1, and the hydraulic press head connecting plate 22 is connected to the hydraulic press 21, and the hydraulic press 21 is arranged on the underwater cable retracting and releasing platform 8. The swing frame 15 is provided with a frame limit baffle 16 on the side facing the gate well 1. The underwater cable retracting and releasing device 6 is provided with a swinging frame 15 which has a giving way function. The underwater cable retracting and releasing device 6 can be driven by a hydraulic press 21 to rotate as a whole to the outside of the gate slot 2 without affecting the operation of the door leaf device 3 entering or being lifted out of the gate slot 2. The frame limit baffle 16 provided on the outer edge of the gate slot 2 can prevent the swinging frame 15 from being offside and transmit the pulling force of the underwater cable 5 to the foundation 27, thereby preventing the underwater cable retracting and releasing device 6 from sliding into the gate well 1, and effectively improving the safety of the operation of the underwater cable retracting and releasing device 6.

[0129] The swing frame 15 is facing the side of the gate shaft 1 and is provided with a cable-proof sidewall-contacting limiting pulley 33 just below the cable-proof limiting pulley 14. The underwater cable 5 is connected to the driving mechanism 4 through the underwater seal 19. The cable-proof limiting pulley 14 is provided to have a steering limiting effect on the underwater cable 5, so that the underwater cable 5 can be connected to the driving mechanism 4 of the gate leaf device 3 through the underwater seal 19 in the vertical direction after passing through the cable-proof limiting pulley 14. In addition to facilitating the connection or disconnection of the underwater cable 5 with the gate leaf device 3, the pulling effect of the lateral force of gravity on the underwater cable 5 during its lifting process is greatly reduced, and the contact of the underwater seal 19 is effectively guaranteed to be reliable.

[0130] The locking platform 7, the underwater cable retracting platform 8 and the underwater cable disassembling platform 9 are connected by a pedestrian staircase 11; a corridor 12 is arranged between the symmetrically arranged underwater cable disassembling platforms 9. The pedestrian staircase 11 and the corridor 12 facilitate maintenance work between the locking platform 7, the underwater cable retracting platform 8 and the underwater cable disassembling platform 9.

[0131] The underwater cable retracting and releasing platform 8 is also provided with a control cabinet 17 and a power distribution cabinet 18, which are electrically connected to the cable drum 13. The drive mechanism 4 is powered and the system is controlled by providing the control cabinet 17 and the power distribution cabinet 18 electrically connected to the cable drum 13.

[0132] The laying method of the intelligent synchronous retractable device of the underwater cable of the monomer combined unit type is a single-bundle single-stage laying method;

[0133] The single-beam single-stage arrangement method is to use a bundle of underwater cables to power and control all gate leaf devices 3 in a gate shaft 1;

[0134] A limit slide groove 34 is provided on the upper door leaf device 3 of any two adjacent upper and lower door leaf devices 3 in the monomer assembly unit, and each door leaf device 3 in the monomer assembly unit is matched with an underwater cable intelligent synchronous retracting and releasing device 6;

[0135] The limiting slide 34 is a structure with a U-shaped cross section. End plates 38 are respectively arranged on both sides of the opening end of the limiting slide 34. A hinge cover plate 36 is arranged on one end plate 38 and the hinge cover plate 36 is rotatably connected to the end plate 38. The hinge cover plate 36 is fixedly connected to the other end plate 38 by bolts 37. Ribs 41 are arranged on the rear of the end plate 38 connected by bolts 37 and on the limiting slide 34. The bolts 37 pass through the end plate 38 and are connected to the ribs 41. A handle 35 is arranged on the side of the hinge cover plate 36 away from the limiting slide 34. The bolts 37 are double-fixed by nuts 39 at both ends, wherein one end of the bolt head 40 is fixed to the ribs 41 of the limiting slide 34 by nuts 39, and the other end of the screw rod 42 is fixed to the end plates 38 on both sides of the limiting slide 34 by nuts 39 to limit the underwater cable. When releasing the limit between the underwater cable 5 and the door leaf device 3, the nut 39 at one end of the screw rod 42 is removed to release the constraint of the hinge cover plate 36, and then a tool is used to hook the handle 35 to flip the hinge cover plate 36 to open the closed end of the limit slide groove 34. An oblong hole 43 is provided at the position corresponding to the position of the hinge cover plate 36 and the screw rod 42. The limit slide 34 is provided with a hinge cover plate 36 with a handle 35 connected to its two side end plates 38 by bolts 37 to seal the open end, which can effectively prevent the underwater cable 5 from escaping from the door leaf device 3 during the retraction and release process, and the bolts 37 are double-fixed by nuts 39 at both ends, wherein one end of the bolt head 37 is fixed to the rib 41 of the limit slide 34 by a nut 39, and the other end screw 42 is fixed to the two side end plates 38 of the limit slide 34 by nuts 39 to limit the underwater cable 5. When the limit between the underwater cable 5 and the door leaf device 3 is released, it is only necessary to remove the nut 39 at one end of the screw 42 to release the constraint of the hinge cover plate 36, and then use a tool to hook the handle 35 to flip the hinge cover plate 36 to open the closed end of the limit slide 34, and the underwater cable 5 can remove the limit slide 34; an oblong hole 43 is provided at the corresponding position of the hinge cover plate 36 and the screw 42 to facilitate its insertion or extraction.

[0136] The motor power and control requirements of the underwater cable 5 are determined according to the operation of one gate leaf device 3 , and then the cross-sectional diameter of the underwater cable 5 can be determined.

[0137] The type and specification of the cable drum 13 are determined according to the retracted and released length of the underwater cable 5 and the structural dimensions of the gate shaft 1 .

[0138] The gate leaf device 3 is an independent single-unit assembly unit, which is divided into 20 single-unit assembly units. The underwater cable adopts a single-bundle single-stage laying method. Each gate leaf device unit adopts a bundle of underwater cables 5 for power supply and control; the upper gate leaf device unit in the adjacent upper and lower stacks of gate leaf device units is provided with an openable limiting slide groove 34 to facilitate the passage of the underwater cable 5 of the lower gate leaf device unit.

[0139] The underwater cable intelligent synchronous retractable device 6 of the monomer combination unit is provided with a cable retractable intelligent control system, which automatically completes the start, stop and follow-up control of the underwater cable intelligent synchronous retractable device 6 according to the characteristic parameters of the controlled object, tracks the speed of the gate lifting or lowering in real time, and adjusts the retractable speed of the underwater cable 5 in real time.

[0140] The operating method of the intelligent synchronous retractable device for underwater cables of the monomer combination unit type comprises: the first step, while using the door machine 32 to lift the door leaf device 3, the underwater cable intelligent synchronous retractable device 6 is started to synchronously and speedily retract the underwater cable 5, after the door leaf device 3 is lifted to the underwater cable disassembly and assembly platform 9, the underwater seal 19 plug-in connector is separated and the underwater cable 5 is removed from the limit slide 34, so that the underwater cable 5 is separated from the door leaf device 3 above the underwater cable disassembly and assembly platform 9;

[0141] The second step is to lift the door leaf device 3 above the underwater cable disassembly and assembly platform 9 to the locking platform 7 and then directly move it into the gatehouse;

[0142] In the third step, the gate device 3 is overhauled and lowered to the underwater cable disassembly and assembly platform 9 by using the gate machine 32, and then the underwater sealer 19 is connected and the underwater cable 5 is moved into the limit slide 34;

[0143] The fourth step is to use the gantry crane 32 to lower the door leaf device 3 while starting the underwater cable intelligent synchronous retracting and releasing device 6 to synchronously and at the same speed lower the underwater cable 5 to the door leaf device 3 to the working position.

[0144] The control cabinet 17 is equipped with an intelligent cable retraction and release control system, and each set of cable intelligent retraction and release device 6 is equipped with a set of cable retraction and release intelligent control system. The cable retraction and release intelligent control system adopts a programmable controller and a frequency conversion speed regulation device for control and drive. The control system automatically completes the start, stop and follow-up control of the cable retraction and release device according to the characteristic parameters of the controlled object (the gate's lifting and lowering, stop state, moving direction, moving speed, position elevation, load and other parameters), tracks the gate's lifting or lowering speed in real time, adjusts the cable retraction and release speed in real time, and keeps the two synchronized in real time; thereby realizing the intelligent operation of the underwater cable retraction and release device and the synchronous tracking of the gate lifting and lowering.

[0145] An intelligent control method for an intelligent synchronous retractable device for underwater cables, the intelligent control method includes real-time tracking of a door-lifting start or door-dropping start signal of a door machine 32, and controlling a cable reel 13 to reel in or unreel an underwater cable 5 at the same speed as the door-lifting start or door-dropping start. When a plurality of door leaf devices 3 are successively lifted or dropped to the elevation of an underwater cable disassembly and assembly platform 9, the underwater cable 5 is untied or connected with the door leaf devices 3. The intelligent control method is implemented by an intelligent control system for cable retractable and retractable, and the specific control process is as follows:

[0146] The reeling control process of the underwater cable reeling intelligent control system is as follows (e.g. Fig.28 As shown): When the door machine 32 starts to start lifting the door, it transmits the "start lifting the door" signal to the above-mentioned control system through the wireless network, and the control system "starts" the cable retracting device to rotate in the reeling direction; at the same time, the speed sensor installed on the door machine 32 detects the gate lifting speed in real time, and transmits the "speed" signal to the control system through the wireless network in real time, and the control system tracks the gate lifting speed in real time, and controls the rotation speed of the cable retracting device in real time, so that the cable reeling speed is consistent with the gate lifting speed; when the Nth door leaf device 3 is lifted to the elevation of the underwater cable disassembly and assembly platform 9, the door machine 32 stops lifting the door, and transmits the "stop lifting the door" signal to the control system through the wireless network, and the control system "stops" the cable The retracting and releasing device rotates; the underwater cable 5 of the Nth door leaf device 3 is untied from the door leaf device 3, and the underwater cable 5 of the door leaf devices 3 below the Nth section is removed from the limiting slide groove 34; the door machine 32 continues to start the door lifting, and transmits the "restart door lifting" signal to the control system, and the control system "starts" the cable retracting and releasing device to start rotating in the winding direction; the speed sensor on the door machine 32 transmits the "speed" signal to the control system in real time, and the control system tracks the door lifting speed in real time. When the Nth door leaf device 3 is lifted to the height of the locking platform 7, the door machine 32 stops lifting the door and transmits "stop lifting the door" to the control system. The door machine 32 moves the Nth door leaf device 3 to the door warehouse, and the door leaf devices 3 of each section in the gate shaft 1 are removed in this way.

[0147] The unwinding control process of the underwater cable retracting and unwinding intelligent control system is as follows (e.g. Fig.29As shown): the door machine 32 first moves the Nth door leaf device 3 to the height of the locking platform 7, and starts to start the door to fall. At the same time, the "start door to fall" signal is transmitted to the above-mentioned control system through the wireless network, and the control system "starts" the cable retracting device to rotate in the unwinding direction; at the same time, the speed sensor installed on the door machine 32 detects the gate falling speed in real time, and transmits the "speed" signal to the control system in real time through the wireless network, the control system tracks the gate falling speed in real time, and controls the rotation speed of the cable retracting device in real time, so that the cable unwinding speed is consistent with the gate falling speed; when the Nth door leaf device 3 falls to the height of the underwater cable disassembly and assembly platform 9, the door machine 32 stops falling, and transmits the "stop door to fall" signal to the control system through the wireless network, and the control system "stops" the cable retracting device. The releasing device rotates; the underwater cable 5 of the Nth section of the door leaf device 3 is connected to the door leaf device 3, and the underwater cable 5 of the door leaf device 3 below the Nth section is moved into the limiting slide groove 34; the door machine 32 continues to start the door to fall, and transmits the "start door to fall again" signal to the control system, and the control system "starts" the cable retracting and releasing device to start rotating in the unwinding direction; the speed sensor on the door machine 32 transmits the "speed" signal to the control system in real time, and the control system tracks the door falling speed in real time, and makes the cable unwinding speed consistent with the door falling speed; when the gate falls to the set position elevation, the door machine 32 stops falling, and transmits "stop door falling" to the control system, and the control system "stops" the rotation of the cable retracting and releasing device; each section of the door leaf device 3 is lowered in this way until all the door leaf devices 3 are completely lowered.

[0148] The intelligent control system for cable retraction and release adopts programmable controller and frequency conversion speed regulation device for control and drive. The control system automatically completes the start, stop and follow-up control of the cable retraction and release device according to the characteristic parameters of the controlled object (gate lifting, stopping state, moving direction, moving speed, position elevation, load and other parameters), tracks the speed of gate lifting or lowering in real time, adjusts the cable retraction and release speed in real time, keeps the two synchronized in real time, realizes intelligent operation of underwater cable retraction and release device, and synchronous tracking of gate lifting, thereby greatly improving the maintenance efficiency of stepless stratified water intake equipment, shortening the maintenance time, increasing the economic benefits of power generation of power stations while ensuring the environmental protection benefits of downstream water supply.

[0149] Obviously, the above is only a part of the embodiments of the present invention, not all of the embodiments. The above embodiments are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any combination, modification, equivalent replacement, improvement and all other embodiments that can be made by those of ordinary skill in the art within the spirit and principle of the present invention should be within the protection scope of the present invention.

Claims

1. An intelligent synchronous retractable device for underwater cables, characterized in that: The invention comprises a gate well (1), gate grooves (2) are arranged on both sides of the gate well (1), gates are arranged in the gate grooves (2), gate opening equipment is arranged on the gates, the gates comprise a plurality of gate leaf devices (3), a locking platform (7), an underwater cable retracting and releasing platform (8) and an underwater cable disassembling and installing platform (9) are arranged on the gate grooves (2) and above the normal water storage level from top to bottom along the elevation direction; and a plurality of underwater cable intelligent synchronous retracting and releasing devices (6) are arranged on the underwater cable retracting and releasing platform (8).

2. The intelligent synchronous retractable device for underwater cables according to claim 1, characterized in that: The locking platform (7) is provided with a locking beam (10); the underwater cable retracting and releasing platform (8) and the underwater cable disassembly and assembly platform (9) are symmetrically arranged on both sides of the center line of the door slot (2).

3. The intelligent synchronous retractable device for underwater cables according to claim 1, characterized in that: The plurality of door leaf devices (3) are independent structures or are connected to each other via a pin device (28).

4. The intelligent synchronous retractable device for underwater cables according to claim 1, characterized in that: The underwater cable intelligent synchronous retracting and releasing device (6) comprises a cable drum (13), the cable drum (13) is arranged on the top surface of a swinging frame (15), a cable rope limiting pulley (14) is arranged on the side of the cable drum (13) facing the gate well (1), an underwater cable (5) is arranged on the cable drum (13), the underwater cable (5) is connected to a driving mechanism (4) through the cable rope limiting pulley (14), and the driving mechanism (4) is arranged on the gate leaf device (3).

5. The intelligent synchronous retractable device for underwater cables according to claim 4, characterized in that: The swing frame (15) comprises an L-shaped arm frame (23), the L-shaped arm frame (23) is arranged inverted, and a hinge plate (24) is arranged at the bottom end of the vertical axis of the L-shaped arm frame (23), the hinge plate (24) is connected to a hinge seat (26) through a hinge shaft (25), and the hinge seat (26) is arranged on a foundation (27).

6. The intelligent synchronous retractable device for underwater cables according to claim 4, characterized in that: The horizontal axis of the L-shaped arm (23) is arranged toward the gate well (1), and a hydraulic press head connecting plate (22) is arranged on the side of the L-shaped arm (23) away from the gate well (1), the hydraulic press head connecting plate (22) is connected to the hydraulic press (21), and the hydraulic press (21) is arranged on the underwater cable retracting and releasing platform (8).

7. The intelligent synchronous retractable device for underwater cables according to claim 4, characterized in that: The swing-type frame (15) is provided with a cable-preventing sidewall limiting pulley (33) facing one side of the gate shaft (1) and directly below the cable rope limiting pulley (14).

8. The intelligent synchronous retractable device for underwater cables according to any one of claims 4 to 7, characterized in that: The swing-type frame (15) is provided with a frame limit baffle (16) on the side facing the gate well (1).

9. The intelligent synchronous retractable device for underwater cables according to claim 1, characterized in that: The underwater cable (5) is connected to the driving mechanism (4) via an underwater seal (19).

10. The intelligent synchronous retractable device for underwater cables according to claim 1, characterized in that: The locking platform (7), the underwater cable retracting and releasing platform (8) and the underwater cable disassembling and assembling platform (9) are connected via pedestrian steps (11).

11. The intelligent synchronous retractable device for underwater cables according to claim 1, characterized in that: The underwater cable retracting and releasing platform (8) is also provided with a control cabinet (17) and a power distribution cabinet (18), and the control cabinet (17) and the power distribution cabinet (18) are electrically connected to the cable reel (13).

12. The intelligent synchronous retractable device for underwater cables according to claim 1, characterized in that: A corridor (12) is arranged between the symmetrically arranged underwater cable disassembly and assembly platforms (9).

13. The method for laying out the intelligent synchronous retractable device for underwater cables according to claim 1, characterized in that: The arrangement method comprises dividing the door leaf device assembly unit types into three types: an integral assembly unit, a stacked assembly unit and a single assembly unit according to the number of door leaf devices (3) arranged in the gate shaft (1) and the capacity of the opening and closing equipment, wherein the integral assembly unit adopts a whole-bundle hierarchical arrangement method, the stacked assembly unit adopts a beam hierarchical arrangement method, and the single assembly unit adopts a single-bundle single-stage arrangement method; The whole-bundle hierarchical layout method is to use a bundle of underwater cables to power and control all gate leaf devices (3) in a gate well (1); The beam splitting and hierarchical layout method is to divide all gate leaf devices (3) in a gate shaft (1) into a plurality of groups of gate leaf device units, and each stack of gate leaf device units is powered and controlled by a bundle of underwater cables; The single-bundle single-stage arrangement method is to use a bundle of underwater cables to supply power and control all gate leaf devices (3) in a gate well (1); Each door leaf device (3) in the overall assembly unit is provided with a cable connector switch (20) on both sides, and the overall assembly unit is provided with one or two sets of underwater cable intelligent synchronous retractable devices (6); A limit slide groove (34) is provided on the upper stacked door leaf device unit of any adjacent upper and lower stacked door leaf device units in the stacked assembly unit, and cable connector switches (20) are provided on both sides of each door leaf device (3) in the stacked assembly unit. The stacked assembly unit is configured with a matching number of underwater cable intelligent synchronous retractable devices (6) according to the number of door leaf device units. A limit sliding groove (34) is provided on the upper door leaf device (3) of any two adjacent upper and lower door leaf devices (3) in the monomer assembly unit, and each door leaf device (3) in the monomer assembly unit is matched with an underwater cable intelligent synchronous retracting and releasing device (6); The underwater cable intelligent synchronous retractable device (6) of the integral assembly unit, the stacked assembly unit and the single assembly unit is provided with a cable retractable intelligent control system. The cable retractable intelligent control system automatically completes the start, stop and follow-up control of the underwater cable intelligent synchronous retractable device (6) according to the characteristic parameters of the controlled object, tracks the speed of the gate lifting or lowering in real time, and adjusts the retractable speed of the underwater cable (5) in real time.

14. The method for laying out the intelligent synchronous retractable device for underwater cables according to claim 13, characterized in that: An upper joint (29), a horizontal joint (30) and a lower joint (31) are arranged on the surface of the cable joint switch (20).

15. The method for laying out the intelligent synchronous retractable device for underwater cables according to claim 13, characterized in that: The limiting slide groove (34) has a U-shaped cross-section. End plates (38) are respectively arranged on both sides of the opening end of the limiting slide groove (34). A hinge cover plate (36) is arranged on one end plate (38) and the hinge cover plate (36) is rotatably connected to the end plate (38). The hinge cover plate (36) is fixedly connected to the other end plate (38) by bolts (37).

16. The method for laying out the intelligent synchronous retractable device for underwater cables according to claim 13, characterized in that: A rib plate (41) is arranged on the limiting slide groove (34) behind the end plate (38) connected to the hinge cover plate (36) by bolts (37), and the bolts (37) pass through the end plate (38) and are connected to the rib plate (41).

17. The method for laying out the intelligent synchronous retractable device for underwater cables according to claim 13, characterized in that: A handle (35) is provided on one side of the hinge cover plate (36) away from the limiting sliding groove (34).

18. The method for laying out the intelligent synchronous retractable device for underwater cables according to claim 13, characterized in that: The characteristic parameters include the gate's lifting and lowering, stopping state, moving direction, moving speed, position elevation and load.

19. The intelligent control method of the intelligent synchronous retractable device of underwater cable according to claim 1, characterized in that: The intelligent control method includes real-time tracking of the start-up door lifting or start-down door signal of the door opening device, and controlling the cable reel (13) to reel in or unreel the underwater cable (5) at the same speed as the start-up door lifting or start-down door. When a plurality of door leaf devices (3) are successively lifted or lowered to the height of the underwater cable disassembly and assembly platform (9), the underwater cable (5) and the door leaf device (3) are untied or connected.

20. The method for operating the method for laying out the intelligent synchronous retractable device for underwater cables according to claim 13, characterized in that: The operation methods include: The first step is to use the door opening device to lift the door leaf device (3) and start the underwater cable intelligent synchronous retracting and releasing device (6) to synchronously and speedily retract the underwater cable (5). After the door leaf device (3) is lifted to the underwater cable disassembly and assembly platform (9), the underwater sealer (19) is separated and the plug-in connector is removed from the limit slide groove (34) and / or the cable connector switch (20), so that the underwater cable (5) is separated from the door leaf device (3) above the underwater cable disassembly and assembly platform (9); The second step is to lift the door leaf device (3) above the underwater cable disassembly and assembly platform (9) to the locking platform (7), fix it with the locking beam (10), dismantle the pin shaft device (28) between the door leaf devices (3), and then move it into the gate warehouse. For the independent door leaf device (3) that is not connected by the pin shaft, lift it to the locking platform (7) and move it directly into the gate warehouse; In the third step, the door leaf device (3) is overhauled and assembled on the locking platform (7) using the door opening device. After the assembly is completed, it is lowered to the underwater cable disassembly and assembly platform (9), and then the underwater seal (19) is connected and the underwater cable (5) is moved into the limit slide groove (34) and / or the cable joint switch (20); The fourth step is to use the door opening device to lower the door leaf device (3) and at the same time start the underwater cable intelligent synchronous retracting and releasing device (6) to synchronously and at the same speed lower the underwater cable (5) to the door leaf device (3) to the working position.

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