Intelligent synchronous winding and unwinding device of underwater cable and laying operation and maintenance method thereof

Abstract

The application provides an intelligent synchronous cable laying and taking device of underwater cable and a laying operation method thereof, and relates to the technical field of metal structures of water conservancy and hydropower engineering. The device comprises a plurality of gate wells arranged in rows, gate slots arranged on both sides of the gate wells, gate doors arranged in the gate slots, gate opening equipment arranged on the gate doors, a plurality of gate leaf devices, a locking platform arranged on the top of the gate slots and above the normal water level in the elevation direction, an underwater cable laying and taking platform, and an underwater cable dismounting platform arranged from top to bottom in the elevation direction. The gate wells are designed and arranged by using a vertical space arrangement method. A platform structure at the top of a traditional gate well is designed into a plurality of connected platform structures different in the height direction. System units such as mechanisms and devices overlapped in the planar space are arranged at platform positions of different elevations. The gate leaf devices meet the requirements of operation and maintenance convenience. The cable laying and taking device is provided with a cable laying and taking intelligent control system to realize intelligent operation of the underwater cable laying and taking device.

Description

Technical Field

[0001] This invention relates to the field of metal structure technology for water conservancy and hydropower engineering, and in particular to an intelligent synchronous cable deployment and retraction device and its deployment and maintenance method. Background Technology

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

[0003] Through the practical experience of multiple projects, 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 great difficulty in management and control. These problems directly restrict the effectiveness of stratified water intake and make it difficult to achieve the expected ecological and environmental protection requirements.

[0004] To address this, my country has intensified its research and development efforts in the field of stratified water intake technology for reservoirs, aiming to improve the operational efficiency of stratified water intake and achieve precise control of water temperature and quality. A stepless stratified water intake technology has been proposed, allowing direct underwater operation of the gate leaf device via a drive mechanism. Each drive mechanism in this technology requires power supply and control, necessitating the installation of underwater cables. Due to the maintenance requirements of the gate leaf device, the underwater cables undergo various operating conditions, including lifting, lowering, disassembly, and assembly. Currently, the gate well adopts a gate slot-to-top structure, with the cable reel placed directly on top. The underwater cable is wound around the reel. To prevent scratching and wear between the underwater cable and the gate slot, the reel is placed within the gate slot. However, the reel's placement hinders the gate leaf device's entry or exit from the gate well and overlaps with the locking beam's position on the plane, making locking the gate leaf device difficult. Furthermore, the various electrical bundles... The cables are connected to the drive mechanisms of gate leaf devices at different elevations. If the speed at which the cable reel winds up and unwinds the underwater cable is not coordinated with the operating speed of the gate leaf and its opening and closing equipment, the underwater cable will experience a large pull force during sliding, affecting its service life and sometimes even causing it to break, rendering the drive mechanism inoperable. This impacts environmental protection and project efficiency. Furthermore, the large number of cables between the upper and lower gate leaf devices makes them prone to mutual interference, and assembly and disassembly are also difficult. The cable reel is subjected to the pull force of the underwater cable, and if the cable reel is not securely fixed, it may slip into the gate well, causing an engineering accident. In addition, the cable winding and unwinding device and the gate leaf device's opening and closing equipment are independently controlled, resulting in poor systemic and coordinated operation on site, which affects the operating efficiency of the stratified water intake equipment. Therefore, the existing technology is not yet perfect and needs further improvement. Summary of the Invention

[0005] This invention provides an intelligent synchronous deployment and retraction device for underwater cables and its deployment and maintenance method, aiming to overcome the shortcomings of existing technologies.

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

[0007] An intelligent synchronous deployment and retrieval device for underwater cables includes a gate well, gate slots on both sides of the gate well, gates installed in the gate slots, gate opening devices on the gates, and gate leaf devices. On the gate slots, above the normal water level, from top to bottom along the elevation direction, there are a locking platform, an underwater cable deployment and retrieval platform, and an underwater cable assembly and disassembly platform; several intelligent synchronous deployment and retrieval devices for underwater cables are installed on the underwater cable deployment and retrieval platform.

[0008] Furthermore, a locking beam is provided on the locking platform; the underwater cable deployment and retraction platform and the underwater cable assembly and disassembly platform are symmetrically arranged on both sides of the center line of the gate 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 winding and unwinding device includes a cable reel, which is set on the top surface of the swing frame. A cable rope limiting pulley is set on the side of the cable reel facing the gate well. An underwater cable is set on the cable reel, and the underwater cable is connected to the drive mechanism through the cable rope limiting pulley. The drive mechanism is set on the gate leaf device.

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

[0012] Furthermore, the horizontal axis end of the L-shaped boom is oriented towards the gate well, and a hydraulic press head connecting plate is provided on the side of the L-shaped boom away from the gate well. The hydraulic press head connecting plate is connected to the hydraulic press, and the hydraulic press is set on the underwater cable reeling platform.

[0013] Furthermore, the swing frame is provided with a cable contact prevention sidewall limiting pulley on the side facing the gate well and directly below the cable rope limiting pulley.

[0014] Furthermore, the swing frame is equipped with a frame limiting baffle on the side facing the gate well.

[0015] Furthermore, the underwater cable is connected to the drive mechanism via an underwater connector.

[0016] Furthermore, the locking platform, the underwater cable deployment and retrieval platform, and the underwater cable assembly and disassembly platform are connected by pedestrian steps.

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

[0018] Furthermore, a corridor is provided between the symmetrically arranged underwater cable assembly and disassembly platforms.

[0019] A method for deploying an intelligent synchronous take-up and release device for underwater cables. The method includes classifying the gate leaf device combination unit into three types according to the number of gate leaf devices installed in the gate well and the capacity of the opening and closing equipment: integral combination unit, stacked combination unit, and single combination unit. The integral combination unit adopts the whole bundle hierarchical deployment method, the stacked combination unit adopts the bundle hierarchical deployment method, and the single combination unit adopts the single bundle single level deployment method.

[0020] The method of bundling and hierarchical deployment involves using a single underwater cable to power and control all gate leaf devices within a gate well.

[0021] The method of bundling and hierarchical deployment is to divide all the gate leaf devices in a gate well 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-bundle single-level deployment method involves using a single bundle of underwater cables to power and control all gate leaf devices within a gate well.

[0023] Each gate leaf device in the overall assembly unit has a cable connector switcher on both sides, and the overall assembly unit is equipped with one or two sets of intelligent synchronous underwater cable deployment and retraction devices.

[0024] In the stacked combination unit, the upper stacked door leaf device unit of any two adjacent upper and lower stacked door leaf device units is provided with a limit sliding groove. Each door leaf device in the stacked combination unit has a cable connector switch on both sides. The stacked combination unit is configured with a matching number of underwater cable intelligent synchronous winding and unwinding devices according to the number of door leaf device units.

[0025] In the single-unit combination unit, any two adjacent upper and lower gate leaf devices are provided with a limit sliding groove, and each gate leaf device in the single-unit combination unit is matched with an underwater cable intelligent synchronous winding and unwinding device.

[0026] The underwater cable intelligent synchronous winding and unwinding device of the overall combination unit, the stacked combination unit and the single combination unit is equipped with an intelligent cable winding and unwinding control system. The intelligent cable winding and unwinding control system automatically completes the start, stop and follow-up control of the underwater cable intelligent synchronous winding and unwinding device according to the characteristic parameters of the controlled object, tracks the speed of gate lifting or lowering in real time, and adjusts the winding and unwinding speed of the underwater cable in real time.

[0027] Furthermore, the surface of the cable connector switch is provided with an upper connector, a horizontal connector, and a lower connector.

[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. The hinge cover plate is fixedly connected to the other end plate by bolts.

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

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

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

[0032] A smart control method for an intelligent synchronous winding and unwinding device for underwater cables is characterized in that: the smart control method includes real-time tracking of the gate opening device's start-up gate lifting or start-up gate lowering signal, and controlling the cable reel to wind or unwind the underwater cable at the same speed as the start-up gate lifting or start-up gate lowering; when several gate leaf devices are sequentially raised or lowered to the elevation of the underwater cable dismantling and assembly platform, the underwater cable is disconnected or connected to the gate leaf devices.

[0033] An operational method for deploying an intelligent synchronous reel-in / deel-out device for underwater cables, the operational method comprising:

[0034] The first step involves using the gate opening device to lift the gate leaf device while simultaneously activating the underwater cable intelligent synchronous reeling and releasing device to retrieve the underwater cable at the same speed. After the gate leaf device is lifted to the underwater cable disassembly and assembly platform, the underwater connector plug-in joint is separated and the underwater cable is removed from the limit slide and / or cable connector switcher, so that the underwater cable is detached from the gate leaf device above the underwater cable disassembly and assembly platform.

[0035] The second step is to lift the gate leaf device above the underwater cable dismantling and assembly platform to the locking platform, fix it with the locking beam, disassemble the pin shaft device between the gate leaf devices, and then move it into the gate storage. For independent gate leaf devices that do not use pin shaft connection, lift them to the locking platform and then move them directly into the gate storage.

[0036] The third step is to complete the maintenance of the gate leaf device, assemble it on the locking platform using the gate opening equipment, and then lower it to the underwater cable disassembly and assembly platform. Then, connect the underwater connector and move the underwater cable into the limit slide and / or cable connector switch.

[0037] The fourth step involves simultaneously lowering the gate leaf device using the gate opening equipment and simultaneously lowering the underwater cable to the working position of the gate leaf device at the same speed using the intelligent synchronous winding and unwinding device.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. The gate well of this invention adopts a vertical spatial arrangement method for structural design and layout. The traditional single platform structure at the top of the gate well is designed into multiple interconnected platform structures with different height directions. The overlapping mechanisms, devices and other system units in the planar space are arranged at platform positions at different elevations, which meets the requirements for convenient operation, inspection and maintenance of the gate leaf device.

[0040] 2. The underwater cable reeling and unloading device of the present invention comprises a cable reel, a cable rope limiting pulley, a swing-type frame, and a frame limiting baffle, etc. The cable rope limiting pulley provides a steering and limiting function for the underwater cable, allowing it to pass vertically through the underwater connector and into the cable connector switcher or drive mechanism of the gate device after passing through the cable rope limiting pulley. Besides facilitating the connection or disconnection of the underwater cable from the gate device, it significantly reduces the lateral gravitational force pulling on the underwater cable during its ascent and descent. This effectively ensures reliable contact of the underwater connector; the underwater cable reeling device is equipped with a swing-type frame that provides clearance. Driven by a hydraulic press, the entire underwater cable reeling device can be rotated outside the gate slot without affecting the entry or lifting of the gate leaf device out of the gate slot. Furthermore, the frame limit baffle set on the outer edge of the gate slot prevents the swing-type frame from overstepping and transfers the tension of the underwater cable to the foundation, preventing the underwater cable reeling device from sliding into the gate well, thus effectively improving the safety of the underwater cable reeling device operation.

[0041] 3. The underwater cable of this invention adopts three different combination unit types: overall combination unit, stacked combination unit, and single-unit combination unit, which are adapted to the gate leaf device. The combination unit type of the gate leaf device is determined according to the number of gate leaf devices in each gate well of different projects, the requirements of layered water intake operation, the capacity of the gate well top opening and closing equipment, and the structure and size of the hydraulic gate well. This makes the underwater cable layout orderly and does not interfere with each other during the lifting and lowering operation of the gate leaf device. It reduces the probability of misalignment and cable jump during the underwater cable retrieval and deployment, and effectively ensures the smooth retrieval and deployment of the underwater cable.

[0042] 4. The cable winding and unwinding device of this invention is equipped with an intelligent cable winding and unwinding control system. The intelligent cable winding and unwinding control system uses a programmable logic controller and a variable frequency speed control device for control and drive. The control system automatically completes the start, stop and follow-up control of the cable winding and unwinding device according to the characteristic parameters of the controlled object (the gate's lifting and stopping status, moving direction, moving speed, position elevation, load, etc.). It tracks the gate's lifting or lowering speed in real time and adjusts the cable winding and unwinding speed in real time to keep the two synchronized in real time. This realizes intelligent operation of the underwater cable winding and unwinding device and synchronous tracking of the gate's lifting and lowering, thereby greatly improving the maintenance efficiency of the stepless stratified water intake equipment, shortening the maintenance time, increasing the power plant's economic benefits while ensuring the environmental benefits of downstream water supply.

[0043] 5. The gate leaf device maintenance of this invention adopts the following operation method: disconnecting the underwater cable from the gate leaf device on the underwater cable disassembly platform, synchronously retrieving and releasing the underwater cable according to the lifting speed of the gate leaf device on the underwater cable retraction platform, and locking the gate leaf device on the locking platform through the locking beam. This achieves the orderly connection of the assembly and disassembly processes of assembling the gate leaf device and connecting the underwater cable, and the operation is simple, fast and convenient, effectively improving work efficiency.

[0044] 6. The limiting slide of this invention uses a hinged cover plate with a handle, which is bolted to the end plates on both sides to seal the opening end. This effectively prevents the underwater cable from detaching from the gate device during deployment and retrieval. The bolts are double-fixed at both ends with nuts. One end of the bolt head is fixed to the rib plate of the limiting slide with a nut, while the other end of the bolt is fixed to the end plates on both sides of the limiting slide with nuts to limit the underwater cable. To release the underwater cable from the gate device, only the nut at one end of the bolt needs to be removed to release the constraint of the hinged cover plate. Then, a tool is used to hook the handle and flip the hinged cover plate to open the closed end of the limiting slide, allowing the underwater cable to be removed from the limiting slide. An elongated hole is provided at the position corresponding to the position of the bolt on the hinged cover plate to facilitate insertion or removal. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the arrangement in Embodiment 1 of the present invention;

[0046] Figure 2 yes Figure 1 AA section view;

[0047] Figure 3 yes Figure 1 BB cross-sectional view;

[0048] Figure 4 This is a schematic diagram of underwater cable disassembly and assembly on an underwater cable disassembly and assembly platform according to Embodiment 1 of the present invention;

[0049] Figure 5This is a schematic diagram of the door leaf disassembly and assembly device on the locking platform according to Embodiment 1 of the present invention;

[0050] Figure 6 yes Figure 1 Enlarged view at point C;

[0051] Figure 7 yes Figure 2 Enlarged view at point D;

[0052] Figure 8 yes Figure 3 Enlarged view at point E;

[0053] Figure 9 yes Figure 4 Enlarged view at point F;

[0054] Figure 10 This is a schematic diagram of the arrangement in Embodiment 2 of the present invention;

[0055] Figure 11 yes Figure 10 GG cross-sectional view;

[0056] Figure 12 yes Figure 10 HH sectional view;

[0057] Figure 13 This is a schematic diagram of underwater cable disassembly and assembly on an underwater cable disassembly and assembly platform according to Embodiment 2 of the present invention;

[0058] Figure 14 yes Figure 10 Enlarged view at point I;

[0059] Figure 15 yes Figure 10 Enlarged view at point J;

[0060] Figure 16 yes Figure 11 Enlarged view at point K;

[0061] Figure 17 yes Figure 11 Enlarged view at point L;

[0062] Figure 18 yes Figure 12 Enlarged view at point M;

[0063] Figure 19 yes Figure 13 Enlarged view at point N;

[0064] Figure 20 This is a schematic diagram of the arrangement in Embodiment 3 of the present invention;

[0065] Figure 21 yes Figure 20 OO sectional view;

[0066] Figure 22 yes Figure 20 PP sectional view;

[0067] Figure 23 This is a schematic diagram of underwater cable disassembly and assembly on an underwater cable disassembly and assembly platform according to Embodiment 2 of the present invention;

[0068] Figure 24 yes Figure 20 Enlarged view at point Q;

[0069] Figure 25 yes Figure 21 Enlarged view at point R;

[0070] Figure 26 yes Figure 22 Enlarged view at point S;

[0071] Figure 27 yes Figure 23 Enlarged view at point T;

[0072] Figure 28 This is a flowchart of the cable winding control according to Embodiments 1, 2, and 3 of the present invention;

[0073] Figure 29 This is a flowchart of the cable unwinding control according to Embodiments 1, 2, and 3 of the present invention.

[0074] Reference numerals: 1-Gate well; 2-Gate slot; 3-Gate leaf device; 4-Drive mechanism; 5-Underwater cable; 6-Underwater cable intelligent synchronous winding and unwinding device; 7-Locking platform; 8-Underwater cable winding and unwinding platform; 9-Underwater cable dismantling and assembly platform; 10-Locking beam; 11-Pedestrian steps; 12-Corridor; 13-Cable reel; 14-Cable rope limiting pulley; 15-Swing frame; 16-Frame limiting baffle; 17-Control cabinet; 18-Distribution cabinet; 19-Underwater sealing device; 20-Cable joint switcher; 21-Hydraulic press; 22-Hydraulic press lifting head connecting plate; 23- L-shaped boom; 24-hinge plate; 25-hinge shaft; 26-hinge seat; 27-foundation; 28-pin device; 29-upper joint; 30-horizontal joint; 31-lower joint; 32-gantry crane; 33-anti-cable contact side wall limiting pulley; 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-oblong hole. Detailed Implementation

[0075] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0076] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0077] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0078] Example 1. An intelligent synchronous deployment and retraction device for underwater cables, when the gate well 1 adopts an integrated modular unit type, the structure is referenced. Figures 1 to 9 The system includes several gate wells 1 arranged in a row. Gate slots 2 are located on both sides of the width of each gate well 1. Gates are installed within the gate slots 2, and each gate is equipped with opening devices. Each gate includes several gate leaf devices 3 arranged along the elevation direction. A locking platform 7, an underwater cable deployment / retraction platform 8, and an underwater cable assembly / disassembly platform 9 are arranged from top to bottom along the elevation direction above the normal water level on the top of the gate slots 2. Several underwater cable intelligent synchronous deployment / retraction devices 6 are installed on the underwater cable deployment / retraction platform 8. The underwater cable assembly / disassembly platforms 9 are symmetrically arranged on both sides of the centerline of the gate slots 2. Locking beams 10 are installed on the locking platform 7. The gate leaf devices 3 are connected by pin devices 28. The opening devices include a gate operator 32 and a trolley, etc. By dividing the platform into a locking platform 7, an underwater cable deployment and retrieval platform 8, and an underwater cable assembly and disassembly platform 9, and setting them at different elevations, it is convenient to install and deploy multiple devices and systems (such as the underwater cable intelligent synchronous deployment and retrieval device 6) and allocate work space, thus meeting the requirements for convenient operation and maintenance of the gate leaf device 3. The operation method of assembling and disassembling the gate leaf device 3 is achieved by disconnecting the underwater cable 5 from the gate leaf device 3 on the underwater cable assembly and disassembly platform 9, synchronously deploying and retrievaling the underwater cable 5 according to the lifting and lowering speed of the gate leaf device 3 on the underwater cable deployment and retrieval platform 8, and locking the gate leaf device 3 on the locking platform 7 through the locking beam 10. This ensures that the assembly and disassembly processes of assembling the gate leaf device 3 and connecting the underwater cable 5 are connected in an orderly manner, making the operation simple, quick, and convenient, and effectively improving work efficiency.

[0079] The underwater cable intelligent synchronous winding and unwinding device 6 includes a cable reel 13, which is set on the top surface of the swing frame 15. A cable rope limiting pulley 14 is set on the side of the cable reel 13 facing the gate well 1. An underwater cable 5 is set on the cable reel 13. The underwater cable 5 is connected to the drive mechanism 4 through the cable rope limiting pulley 14. The drive mechanism 4 is set on the gate leaf device 3.

[0080] The swing-type frame 15 includes an L-shaped boom 23, which is inverted. A hinge plate 24 is located at the bottom of the vertical axis of the L-shaped boom 23. The hinge plate 24 is connected to a hinge seat 26 via a hinge shaft 25, and the hinge seat 26 is mounted on a foundation 27. The horizontal axis of the L-shaped boom 23 faces the gate well 1. A hydraulic press lifting head connecting plate 22 is located on the side of the L-shaped boom 23 away from the gate well 1. The hydraulic press lifting head connecting plate 22 is connected to a hydraulic press 21, which is mounted on an underwater cable reeling platform 8. A frame limiting baffle 16 is located on the side of the swing-type frame 15 facing the gate well 1. The underwater cable reeling device 6 is equipped with a swing-type frame 15, which has a clearance function. Driven by the hydraulic press 21, the underwater cable reeling device 6 can be rotated to the outside of the gate slot 2 without affecting the operation of the gate leaf device 3 entering or being lifted out of the gate slot 2. The frame limiting baffle 16 set on the outer edge of the gate slot 2 can limit the swing-type frame 15 to prevent it from overstepping and transfer the tension of the underwater cable 5 to the foundation 27, preventing the underwater cable reeling device 6 from sliding into the gate well 1, and effectively improving the safety of the operation of the underwater cable reeling device 6.

[0081] The swing frame 15 faces the gate well 1 and is equipped with a cable contact prevention sidewall limiting pulley 33 directly below the cable rope limiting pulley 14. The underwater cable 5 is connected to the drive mechanism 4 through the underwater sealing connector 19. By setting the cable rope limiting pulley 14, the underwater cable 5 has a steering limiting function, so that after passing through the cable rope limiting pulley 14, the underwater cable 5 can be connected vertically to the cable connector switch 20 of the gate leaf device 3 through the underwater sealing connector 19. In addition to facilitating the connection or disconnection of the underwater cable 5 from the gate leaf device 3, it greatly reduces the lateral component of gravity pulling force on the underwater cable 5 during its lifting and lowering process, effectively ensuring the reliable contact of the underwater sealing connector 19.

[0082] The locking platform 7, the underwater cable deployment / retraction platform 8, and the underwater cable assembly / disassembly platform 9 are connected by pedestrian steps 11; a corridor 12 is provided between the symmetrically arranged underwater cable assembly / disassembly platforms 9. The pedestrian steps 11 and the corridor 12 facilitate maintenance work between the locking platform 7, the underwater cable deployment / retraction platform 8, and the underwater cable assembly / disassembly platform 9.

[0083] The underwater cable reeling platform 8 is also equipped with a control cabinet 17 and a power distribution cabinet 18, which are electrically connected to the cable reel 13. The drive mechanism 4 is powered and controlled by the electrical connection between the control cabinet 17 and the power distribution cabinet 18 and the cable reel 13.

[0084] The deployment method for the intelligent synchronous deployment and take-up device of the integrated modular underwater cable is a bundle-level deployment method.

[0085] The method of tiered deployment is to use a bundle of underwater cables to power and control all the gate leaf devices 3 in a gate well 1.

[0086] Each gate leaf device 3 in the overall combination unit has a cable connector switcher 20 on both sides, and the overall combination unit is equipped with one or two sets of underwater cable intelligent synchronous winding and unwinding devices 6.

[0087] The cable connector switcher 20 is provided with an upper connector 29, a horizontal connector 30 and a lower connector 31 on its surface.

[0088] The underwater cable intelligent synchronous deployment and retraction device 6 of the integrated unit is equipped with an intelligent cable deployment and retraction control system. This system automatically controls the start, stop, and follow-up of the device based on the characteristic parameters of the controlled object, tracks the gate's lifting or lowering speed in real time, and adjusts the deployment and retraction speed of the underwater cable 5 accordingly. The intelligent cable deployment and retraction control system uses a programmable logic controller (PLC) and a variable frequency drive (VFD) for control and drive. Based on the characteristic parameters of the controlled object, including the gate's lifting / lowering status, direction of movement, speed, elevation, and load, the system automatically controls the start, stop, and follow-up of the cable deployment and retraction device, tracks the gate's lifting or lowering speed in real time, and adjusts the cable deployment and retraction speed to maintain real-time synchronization. This achieves intelligent operation of the underwater cable deployment and retraction device and synchronous tracking of the gate's lifting and lowering, significantly improving the maintenance efficiency of the stepless stratified water intake equipment, shortening maintenance time, increasing the power plant's economic benefits, and ensuring the environmental benefits of downstream water supply.

[0089] The motor power and control requirements of the underwater cable 5 are determined according to the number of gate leaf devices 3 that operate simultaneously in each gate well for layered water intake, and then the cross-sectional diameter of the underwater cable 5 can be determined.

[0090] The type and specifications of the cable reel 13 are determined based on the winding and unwinding length of the underwater cable 5 and the structural dimensions of the gate well 1.

[0091] The gate leaf device 3 is an integral unit assembled by the pin device 28. The gate leaf device 3 in each gate well 1 is powered and controlled by two bundles of underwater cables 5 on both sides (one for use and one for backup). Underwater connectors 19 are installed on both sides and the top of the gate leaf device 3. Cable connector switchers 20 are installed on both sides of each gate leaf device 3. The outer end face of the cable connector switcher 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 drive mechanism 4 of the gate leaf device 3. The upper connector 29 is connected to the upper underwater cable 5 through the underwater connector 19 at the top. The lower connector 31 is connected to the lower underwater cable 5 through the underwater connector 19.

[0092] The operation method of the intelligent synchronous deployment and retraction device for integrated modular underwater cables includes:

[0093] First, while using the gantry crane 32 to lift the gate leaf device 3, the underwater cable intelligent synchronous reeling and releasing device 6 is activated to synchronously and at the same speed retrieve the underwater cable 5. After the gate leaf device 3 is lifted to the underwater cable disassembly and assembly platform 9, the underwater connector 19 plug-in joint is separated and the underwater cable 5 is removed from the cable connector switcher 20, so that the underwater cable 5 is detached from the gate leaf device 3 above the underwater cable disassembly and assembly platform 9.

[0094] The second step is to lift the gate leaf device 3 above the underwater cable disassembly and assembly platform 9 to the locking platform 7, fix it by the locking beam 10, disassemble the pin shaft device 28 between the gate leaf devices 3, and then move it into the gatehouse.

[0095] The third step is to complete the maintenance of the gate leaf device 3, and then use the gate machine 32 to assemble it on the locking platform 7. After the assembly is completed, it is lowered to the underwater cable disassembly and assembly platform 9, and then the underwater tight connector 19 is connected and the underwater cable 5 is connected to the cable connector switcher 20.

[0096] The fourth step involves simultaneously lowering the gate leaf device 3 using the gantry crane 32, and simultaneously lowering the underwater cable 5 to the gate leaf device 3 at the same speed to the working position.

[0097] Control cabinet 17 is equipped with an intelligent cable reeling and deployment control system. Each set of intelligent cable reeling and deployment devices 6 is equipped with one such control system. The intelligent cable reeling and deployment control system uses a programmable logic controller (PLC) and a variable frequency drive (VFD) for control and drive. Based on the characteristic parameters of the controlled object (gate lifting / lowering status, direction of movement, speed of movement, elevation, load, etc.), the control system automatically completes the start, stop, and follow-up control of the cable reeling and deployment device, tracking the gate's lifting or lowering speed in real time and adjusting the cable reeling and deployment speed accordingly to maintain real-time synchronization. This achieves intelligent operation of the underwater cable reeling and deployment device and synchronous tracking of gate lifting and lowering.

[0098] A smart control method for an intelligent synchronous winding and unwinding device for underwater cables includes real-time tracking of the gate operator 32's start-up or start-down signal, and controlling the cable reel 13 to wind or unwind the underwater cable 5 at the same speed as the start-up or start-down signal. When several gate leaf devices 3 are sequentially raised or lowered to the elevation of the underwater cable dismantling platform 9, the underwater cable 5 is disconnected or connected to the gate leaf devices 3. The smart control method is implemented through a cable winding and unwinding intelligent control system, and the specific control flow is as follows:

[0099] The winding control process of the underwater cable winding and unwinding intelligent control system is as follows (e.g.) Figure 28 As shown): Simultaneously, when the gantry crane 32 starts lifting the gate, it transmits a "start lifting gate" signal to the aforementioned control system via a wireless network. The control system then "starts" the cable winding device to rotate in the winding direction. At the same time, a speed sensor installed on the gantry crane 32 detects the gate lifting speed in real time and transmits a "speed" signal to the control system via a wireless network. The control system tracks the gate lifting speed in real time and controls the rotation speed of the cable winding device accordingly, ensuring that the cable winding speed matches the gate lifting speed. When the Nth gate leaf device 3 is lifted to the elevation of the underwater cable dismantling platform 9, the gantry crane 32 stops lifting the gate and transmits a "stop lifting gate" signal to the control system via a wireless network. The control system "stops" the rotation of the cable reel; the underwater cable 5 of the Nth gate leaf device 3 is disconnected from the gate leaf device 3, and the control system "starts" the swing frame of the cable reel to rotate outside the gate slot to make way for the gate leaf device 3; the gantry crane 32 continues to start lifting the gate and transmits the "start lifting the gate again" signal to the control system; when the Nth gate leaf device 3 is raised to the elevation of the locking platform 7, the gantry crane 32 stops lifting the gate and transmits the "stop lifting the gate" signal to the control system; the pin device 28 between the upper and lower gate leaf devices 3 is released, and the gantry crane 32 removes the Nth gate leaf device 3; each section of the gate leaf device 3 in the gate well 1 is removed in this manner until all the gate leaf devices 3 that need to be removed are removed.

[0100] The unwinding control process of the underwater cable rewinding intelligent control system is as follows (e.g.) Figure 29(As shown): The gantry crane 32 first moves the Nth gate leaf device 3 to the elevation of the locking platform 7, fixes the pin shaft device 28 between the upper and lower gate leaf devices 3, and starts to lower the gate. At the same time, it transmits the "start lowering gate" signal to the control system via the wireless network. The control system "starts" the cable winding device to rotate in the unwinding direction. Simultaneously, the speed sensor installed on the gantry crane 32 detects the gate's falling speed in real time and transmits the "speed" signal to the control system via the wireless network in real time. The control system tracks the gate's falling speed in real time and controls the rotation speed of the cable winding device in real time to keep the cable unwinding speed consistent with the gate's falling speed. When the Nth gate leaf device 3 falls to the elevation of the underwater cable dismantling platform 9, the gantry crane 32 stops lowering the gate and transmits the "stop lowering gate" signal via the wireless network. The network transmits the signal to the control system, which then "stops" the cable winding device from rotating and connects the underwater cable 5 of the Nth gate leaf device 3 to the gate leaf device 3. The gantry crane 32 continues to start lowering the gate and transmits a "restart lowering gate" signal to the control system, which then "starts" the cable winding device to rotate in the unwinding direction. The speed sensor on the gantry crane 32 transmits a "speed" signal to the control system in real time, which tracks the lowering speed and keeps the cable unwinding speed consistent with the lowering speed. When the gate falls to the set elevation, the gantry crane 32 stops lowering the gate and transmits a "stop lowering gate" signal to the control system, which then "stops" the cable winding device from rotating. This process is repeated for each section of the gate leaf device 3 until all required gate leaf devices 3 are installed.

[0101] The intelligent cable reeling and deployment control system uses a programmable logic controller (PLC) and a variable frequency speed control device for control and drive. The control system automatically completes the start, stop, and follow-up control of the cable reeling and deployment device based on the characteristic parameters of the controlled object (gate lifting and stopping status, moving direction, moving speed, position elevation, load, etc.). It tracks the speed of gate lifting or lowering in real time and adjusts the cable reeling and deployment speed in real time to keep the two synchronized. This realizes intelligent operation of the underwater cable reeling and deployment device and synchronous tracking of gate lifting and lowering, thereby greatly improving the maintenance efficiency of the stepless stratified water intake equipment, shortening maintenance time, increasing the economic benefits of power plant power generation, and ensuring the environmental benefits of downstream water supply.

[0102] Example 2. An intelligent synchronous deployment and retraction device for underwater cables, when the gate well 1 adopts a stacked modular unit type, the structure is referenced. Figures 10 to 19The system includes several gate wells 1 arranged in a row. Gate slots 2 are located on both sides of the width of each gate well 1. Gates are installed within the gate slots 2, and each gate is equipped with opening devices. Each gate includes several gate leaf devices 3 arranged along the elevation direction. A locking platform 7, an underwater cable deployment / retraction platform 8, and an underwater cable assembly / disassembly platform 9 are arranged from top to bottom along the elevation direction above the normal water level on the top of the gate slots 2. Several intelligent synchronous underwater cable deployment / retraction devices 6 are installed on the underwater cable deployment / retraction platform 8. The underwater cable deployment / retraction platform 8 and the underwater cable assembly / disassembly platform 9 are symmetrically arranged on both sides of the centerline of the gate slots 2. A locking beam 10 is installed on the locking platform 7. The gate leaf devices 3 are connected by pin devices 28. The opening devices include a gate operator 32 and a trolley, etc. By dividing the platform into a locking platform 7, an underwater cable deployment and retrieval platform 8, and an underwater cable assembly and disassembly platform 9, and setting them at different elevations, it is convenient to install and deploy multiple devices and systems (such as the underwater cable intelligent synchronous deployment and retrieval device 6) and allocate work space, thus meeting the requirements for convenient operation and maintenance of the gate leaf device 3. The operation method of assembling and disassembling the gate leaf device 3 is achieved by disconnecting the underwater cable 5 from the gate leaf device 3 on the underwater cable assembly and disassembly platform 9, synchronously deploying and retrievaling the underwater cable 5 according to the lifting and lowering speed of the gate leaf device 3 on the underwater cable deployment and retrieval platform 8, and locking the gate leaf device 3 on the locking platform 7 through the locking beam 10. This ensures that the assembly and disassembly processes of assembling the gate leaf device 3 and connecting the underwater cable 5 are connected in an orderly manner, making the operation simple, quick, and convenient, and effectively improving work efficiency.

[0103] The underwater cable intelligent synchronous winding and unwinding device 6 includes a cable reel 13, which is set on the top surface of the swing frame 15. A cable rope limiting pulley 14 is set on the side of the cable reel 13 facing the gate well 1. An underwater cable 5 is set on the cable reel 13. The underwater cable 5 is connected to the drive mechanism 4 through the cable rope limiting pulley 14. The drive mechanism 4 is set on the gate leaf device 3.

[0104] The swing-type frame 15 includes an L-shaped boom 23, which is inverted. A hinge plate 24 is located at the bottom of the vertical axis of the L-shaped boom 23. The hinge plate 24 is connected to a hinge seat 26 via a hinge shaft 25, and the hinge seat 26 is mounted on a foundation 27. The horizontal axis of the L-shaped boom 23 faces the gate well 1. A hydraulic press lifting head connecting plate 22 is located on the side of the L-shaped boom 23 away from the gate well 1. The hydraulic press lifting head connecting plate 22 is connected to a hydraulic press 21, which is mounted on an underwater cable reeling platform 8. A frame limiting baffle 16 is located on the side of the swing-type frame 15 facing the gate well 1. The underwater cable reeling device 6 is equipped with a swing-type frame 15, which has a clearance function. Driven by the hydraulic press 21, the underwater cable reeling device 6 can be rotated to the outside of the gate slot 2 without affecting the operation of the gate leaf device 3 entering or being lifted out of the gate slot 2. The frame limiting baffle 16 set on the outer edge of the gate slot 2 can limit the swing-type frame 15 to prevent it from overstepping and transfer the tension of the underwater cable 5 to the foundation 27, preventing the underwater cable reeling device 6 from sliding into the gate well 1, and effectively improving the safety of the operation of the underwater cable reeling device 6.

[0105] The swing frame 15 faces the gate well 1 and is equipped with a cable contact prevention sidewall limiting pulley 33 directly below the cable rope limiting pulley 14. The underwater cable 5 is connected to the drive mechanism 4 through the underwater sealing connector 19. By setting the cable rope limiting pulley 14, the underwater cable 5 has a steering limiting function, so that after passing through the cable rope limiting pulley 14, the underwater cable 5 can be connected vertically through the underwater sealing connector 19 to the cable connector switch 20 of the gate leaf device 3 and the drive mechanism 4. In addition to facilitating the connection or disconnection of the underwater cable 5 from the gate leaf device 3, it greatly reduces the lateral force of gravity pulling on the underwater cable 5 during its lifting and lowering process, effectively ensuring the reliable contact of the underwater sealing connector 19.

[0106] The locking platform 7, the underwater cable deployment / retraction platform 8, and the underwater cable assembly / disassembly platform 9 are connected by pedestrian steps 11; a corridor 12 is provided between the symmetrically arranged underwater cable assembly / disassembly platforms 9. The pedestrian steps 11 and the corridor 12 facilitate maintenance work between the locking platform 7, the underwater cable deployment / retraction platform 8, and the underwater cable assembly / disassembly platform 9.

[0107] The underwater cable reeling platform 8 is also equipped with a control cabinet 17 and a power distribution cabinet 18, which are electrically connected to the cable reel 13. The drive mechanism 4 is powered and controlled by the electrical connection between the control cabinet 17 and the power distribution cabinet 18 and the cable reel 13.

[0108] The intelligent synchronous deployment and take-up device for the stacked and combined unit type of underwater cable is deployed by a bundled and graded deployment method.

[0109] The method of bundling and hierarchical deployment is to divide all the gate leaf devices 3 in a gate well 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.

[0110] In the stacked combination unit, the upper stacked door leaf device unit of any two adjacent upper and lower stacked door leaf device units is provided with a limit groove 34. Each door leaf device 3 in the stacked combination unit has a cable connector switcher 20 on both sides. The stacked combination unit is configured with a matching number of underwater cable intelligent synchronous winding and unwinding devices 6 according to the number of door leaf device units.

[0111] The limiting slide 34 has a U-shaped cross-section. End plates 38 are respectively provided on both sides of the open end of the limiting slide 34. A hinge cover plate 36 is provided on one end plate 38 and 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. A rib plate 41 is provided behind the end plate 38 connected to the hinge cover plate 36 by bolts 37 and on the limiting slide 34. The bolts 37 pass through the end plate 38 and connect to the rib plate 41. A handle 35 is provided on the side of the hinge cover plate 36 away from the limiting slide 34. The bolts 37 are double-fixed at both ends by nuts 39. One end of the bolt head 40 is fixed to the rib plate 41 of the limiting slide 34 by the nut 39, and the other end, the screw 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 limiting position between the underwater cable 5 and the door leaf device 3, the constraint of the hinge cover plate 36 is released by removing the nut 39 at one end of the screw 42. Then, a tool is used to hook the handle 35 to flip the hinge cover plate 36 and open the closed end of the limiting slide groove 34. An elongated hole 43 is provided at the position corresponding to the screw 42 on the hinge cover plate 36. By setting a limiting slide groove 34 and using a hinge cover plate 36 with a handle 35 connected to its two end plates 38 by bolts 37 to seal the opening end, the underwater cable 5 can be effectively prevented from detaching from the door leaf device 3 during the deployment and retrieval process. The bolts 37 are double-fixed at both ends by nuts 39. One end of the bolt 37 is fixed to the rib plate 41 of the limiting slide groove 34 by the nut 39, and the other end of the bolt 42 is fixed to the two end plates 38 of the limiting slide groove 34 by the nut 39 to limit the underwater cable 5. When the underwater cable 5 is released from the limiting between the door leaf device 3, it is only necessary to remove the nut 39 at one end of the bolt 42 to release the constraint of the hinge cover plate 36. Then, a tool is used to hook the handle 35 to flip the hinge cover plate 36 to open the closed end of the limiting slide groove 34, and the underwater cable 5 can be removed from the limiting slide groove 34. The hinge cover plate 36 is provided with an elongated hole 43 at the corresponding position of the bolt 42 to facilitate its insertion or removal.

[0112] The motor power and control requirements of the underwater cable 5 are determined according to the number of gate leaf devices 3 that operate simultaneously in each gate well for layered water intake, and then the cross-sectional diameter of the underwater cable 5 can be determined.

[0113] The type and specifications of the cable reel 13 are determined based on the winding and unwinding length of the underwater cable 5 and the structural dimensions of the gate well 1.

[0114] The gate leaf device 3 is a stacked combination unit type, consisting of 5 stacked gate leaf device units. The underwater cables are laid out in bundles and levels. Each stacked gate leaf device unit uses a bundle of underwater cables 5 for power supply and control. Underwater connectors 19 are installed on both sides and the top of the gate leaf device 3. Cable connector switchers 20 are installed on both sides of each set of gate leaf devices 3. The outer end face of the cable connector switcher 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 drive mechanism 4 of the gate leaf device 3. The upper connector 29 is connected to the upper underwater cable 5 through the underwater connector 19 at the top. The lower connector 31 is connected to the lower underwater cable 5 through the underwater connector 19. The upper stacked gate leaf device unit in the adjacent upper and lower stacked gate leaf device units is provided with an openable limiting groove 34 to allow the underwater cable 5 of the lower stacked gate leaf device unit to pass through.

[0115] The underwater cable intelligent synchronous winding and unwinding device 6 of the stacked combination unit is equipped with an intelligent cable winding and unwinding control system. The intelligent cable winding and unwinding control system automatically completes the start, stop and follow-up control of the underwater cable intelligent synchronous winding and unwinding device 6 according to the characteristic parameters of the controlled object, tracks the speed of gate lifting or lowering in real time, and adjusts the winding and unwinding speed of underwater cable 5 in real time.

[0116] The operation method of the intelligent synchronous reeling and deployment device for underwater cables of the stacked and combined unit type includes: First, while the gate leaf device 3 is lifted by the gantry crane 32, the intelligent synchronous reeling and deployment device 6 for underwater cables is started to synchronously and at the same speed to retrieve the underwater cable 5. After the gate leaf device 3 is lifted to the underwater cable disassembly and assembly platform 9, the plug-in connector of the underwater sealing connector 19 is separated and the underwater cable 5 is removed from the limiting slide 34 and the cable connector switcher 20, so that the underwater cable 5 is separated from the gate leaf device 3 above the underwater cable disassembly and assembly platform 9.

[0117] The second step is to lift the gate leaf device 3 above the underwater cable disassembly and assembly platform 9 to the locking platform 7, fix it through the locking beam 10, disassemble the pin shaft device 28 between the gate leaf devices 3, and then move it into the storage compartment. For independent gate leaf devices 3 that are not connected by pin shafts, lift them to the locking platform 7 and then move them directly into the storage compartment.

[0118] The third step is to complete the maintenance of the gate leaf device 3, and then use the gate machine 32 to assemble it on the locking platform 7. After the assembly is completed, it is lowered to the underwater cable disassembly and assembly platform 9, and then the underwater sealing device 19 is connected and the underwater cable 5 is moved into the limiting slide 34 and connected to the cable connector switch 20.

[0119] The fourth step involves simultaneously lowering the gate leaf device 3 using the gantry crane 32, and simultaneously lowering the underwater cable 5 to the gate leaf device 3 at the same speed to the working position.

[0120] Control cabinet 17 is equipped with an intelligent cable reeling and deployment control system. Each set of intelligent cable reeling and deployment devices 6 is equipped with one such control system. The intelligent cable reeling and deployment control system uses a programmable logic controller (PLC) and a variable frequency drive (VFD) for control and drive. Based on the characteristic parameters of the controlled object (gate lifting / lowering status, direction of movement, speed of movement, elevation, load, etc.), the control system automatically completes the start, stop, and follow-up control of the cable reeling and deployment device, tracking the gate's lifting or lowering speed in real time and adjusting the cable reeling and deployment speed accordingly to maintain real-time synchronization. This achieves intelligent operation of the underwater cable reeling and deployment device and synchronous tracking of gate lifting and lowering.

[0121] A smart control method for an intelligent synchronous winding and unwinding device for underwater cables includes real-time tracking of the gate operator 32's start-up or start-down signal, and controlling the cable reel 13 to wind or unwind the underwater cable 5 at the same speed as the start-up or start-down signal. When several gate leaf devices 3 are sequentially raised or lowered to the elevation of the underwater cable dismantling platform 9, the underwater cable 5 is disconnected or connected to the gate leaf devices 3. The smart control method is implemented through a cable winding and unwinding intelligent control system, and the specific control flow is as follows:

[0122] The winding control process of the underwater cable winding and unwinding intelligent control system is as follows (e.g.) Figure 28As shown): Simultaneously, when the gantry crane 32 starts lifting the gate, it transmits a "start lifting gate" signal to the control system via a wireless network. The control system then "starts" the cable winding device to rotate in the winding direction. At the same time, a speed sensor installed on the gantry crane 32 detects the gate lifting speed in real time and transmits a "speed" signal to the control system via a wireless network. The control system tracks the gate lifting speed in real time and controls the rotation speed of the cable winding device accordingly, ensuring the cable winding speed matches the gate lifting speed. When the Nth section of the gate leaf device 3 reaches the elevation of the underwater cable dismantling platform 9, the gantry crane 32 stops lifting the gate and transmits a "stop lifting gate" signal to the control system via a wireless network. The control system then "stops" the cable winding device. The Nth section of the gate leaf device 3... The underwater cable 5 is disconnected from the gate leaf device 3. 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 swing frame of the cable reel-in device to rotate outside the gate slot to make way for the gate leaf device 3. The gate operator 32 continues to start lifting the gate and transmits the "start lifting the gate again" signal to the control system. The speed sensor on the gate operator 32 transmits the "speed" signal to the control system in real time. When the Nth section of the gate leaf device 3 is raised to the elevation of the locking platform 7, the gate operator 32 stops lifting the gate and transmits the "stop lifting the gate" signal to the control system. The pin device 28 between the upper and lower gate leaf devices 3 is released, and the gate operator 32 removes the Nth section of the gate leaf device 3. The gate leaf devices 3 in the gate well 1 are removed in this way until all the gate leaf devices 3 that need to be removed are removed.

[0123] The unwinding control process of the underwater cable rewinding intelligent control system is as follows (e.g.) Figure 29(As shown): The gantry crane 32 first moves the Nth gate leaf device 3 to the elevation of the locking platform 7, fixes the pin shaft device 28 between the upper and lower gate leaf devices 3, and starts to lower the gate. At the same time, it transmits the "start lowering gate" signal to the control system via the wireless network. The control system "starts" the cable winding device to rotate in the unwinding direction. Simultaneously, the speed sensor installed on the gantry crane 32 detects the gate's falling speed in real time and transmits the "speed" signal to the control system via the wireless network in real time. The control system tracks the gate's falling speed in real time and controls the rotation speed of the cable winding device in real time to keep the cable unwinding speed consistent with the gate's falling speed. When the Nth gate leaf device 3 falls to the elevation of the underwater cable dismantling platform 9, the gantry crane 32 stops lowering the gate and transmits the "stop lowering gate" signal to the control system via the wireless network. The system "stops" the rotation of the cable winding and unwinding device; connects the underwater cable 5 of the Nth section of the gate leaf device 3 to the gate leaf device 3, and moves the underwater cables 5 of the gate leaf devices 3 below the Nth section into the limiting slide groove 34; the gate operator 32 continues to start the gate lowering, and transmits the "restart gate lowering" signal to the control system, and the control system "starts" the cable winding and unwinding device to start rotating in the unwinding direction; the speed sensor on the gate operator 32 transmits the "speed" signal to the control system in real time, and the control system tracks the gate lowering speed in real time and keeps the cable unwinding speed consistent with the gate lowering speed; when the gate falls to the set position elevation, the gate operator 32 stops the gate lowering and transmits the "stop gate lowering" signal to the control system, and the control system "stops" the rotation of the cable winding and unwinding device; install each section of the gate leaf device 3 in this way until all the required gate leaf devices 3 are installed.

[0124] The intelligent cable reeling and deployment control system uses a programmable logic controller (PLC) and a variable frequency speed control device for control and drive. The control system automatically completes the start, stop, and follow-up control of the cable reeling and deployment device based on the characteristic parameters of the controlled object (gate lifting and stopping status, moving direction, moving speed, position elevation, load, etc.). It tracks the speed of gate lifting or lowering in real time and adjusts the cable reeling and deployment speed in real time to keep the two synchronized. This realizes intelligent operation of the underwater cable reeling and deployment device and synchronous tracking of gate lifting and lowering, thereby greatly improving the maintenance efficiency of the stepless stratified water intake equipment, shortening maintenance time, increasing the economic benefits of power plant power generation, and ensuring the environmental benefits of downstream water supply.

[0125] Example 3. An intelligent synchronous deployment and retraction device for underwater cables, when the gate well 1 adopts a single-unit combination type, the structure is referenced. Figures 20 to 27The system includes several gate wells 1 arranged in a row. Gate slots 2 are located on both sides of the width of each gate well 1. Gates are installed within the gate slots 2, and each gate is equipped with opening devices. Each gate includes several gate leaf devices 3 arranged along the elevation direction. A locking platform 7, an underwater cable deployment / retraction platform 8, and an underwater cable assembly / disassembly platform 9 are arranged from top to bottom along the elevation direction above the normal water level in the gate slots 2. Several intelligent synchronous underwater cable deployment / retraction devices 6 are installed on the underwater cable deployment / retraction platform 8. The underwater cable deployment / retraction platform 8 and the underwater cable assembly / disassembly platform 9 are symmetrically arranged on both sides of the centerline of the gate slots 2. A locking beam 10 is installed on the locking platform 7. The gate leaf devices 3 are independent structures. The opening devices include a gate operator 32, a trolley, etc. By dividing the platform into a locking platform 7, an underwater cable deployment and retrieval platform 8, and an underwater cable assembly and disassembly platform 9, and setting them at different elevations, it is convenient to install and deploy multiple devices and systems (such as the underwater cable intelligent synchronous deployment and retrieval device 6) and allocate work space, thus meeting the requirements for convenient operation and maintenance of the gate leaf device 3. The operation method of disconnecting the underwater cable 5 from the gate leaf device 3 on the underwater cable assembly and disassembly platform 9, synchronously deploying and retrievaling the underwater cable 5 according to the lifting and lowering speed of the gate leaf device 3 on the underwater cable deployment and retrieval platform 8, and locking the gate leaf device 3 on the locking platform 7 through the locking beam 10, realizes the orderly connection of the assembly and disassembly processes of the gate leaf device 3 and the underwater cable 5. The operation is simple, fast and convenient, effectively improving work efficiency.

[0126] The underwater cable intelligent synchronous winding and unwinding device 6 includes a cable reel 13, which is set on the top surface of the swing frame 15. A cable rope limiting pulley 14 is set on the side of the cable reel 13 facing the gate well 1. An underwater cable 5 is set on the cable reel 13. The underwater cable 5 is connected to the drive mechanism 4 through the cable rope limiting pulley 14. The drive mechanism 4 is set on the gate leaf device 3.

[0127] The swing-type frame 15 includes an L-shaped boom 23, which is inverted. A hinge plate 24 is provided at the bottom end of the vertical axis of the L-shaped boom 23. The hinge plate 24 is connected to a hinge seat 26 via a hinge shaft 25, and the hinge seat 26 is mounted on a foundation 27. The horizontal axis of the L-shaped boom 23 faces the gate well 1. A hydraulic press lifting head connecting plate 22 is provided on the side of the L-shaped boom 23 away from the gate well 1. The hydraulic press lifting head connecting plate 22 is connected to a hydraulic press 21, which is mounted on an underwater cable reeling platform 8. A frame limiting baffle 16 is provided on the side of the swing-type frame 15 facing the gate well 1. The underwater cable reeling device 6 is equipped with a swing-type frame 15, which has a clearance function. Driven by the hydraulic press 21, the underwater cable reeling device 6 can be rotated to the outside of the gate slot 2 without affecting the operation of the gate leaf device 3 entering or being lifted out of the gate slot 2. The frame limiting baffle 16 set on the outer edge of the gate slot 2 can limit the swing-type frame 15 to prevent it from overstepping and transfer the tension of the underwater cable 5 to the foundation 27, preventing the underwater cable reeling device 6 from sliding into the gate well 1, and effectively improving the safety of the operation of the underwater cable reeling device 6.

[0128] The swing frame 15 faces the gate well 1 and is equipped with a cable contact prevention sidewall limiting pulley 33 directly below the cable rope limiting pulley 14. The underwater cable 5 is connected to the drive mechanism 4 through the underwater sealing connector 19. By setting the cable rope limiting pulley 14, the underwater cable 5 has a steering limiting function, so that after passing through the cable rope limiting pulley 14, the underwater cable 5 can be vertically connected to the drive mechanism 4 of the gate leaf device 3 through the underwater sealing connector 19. In addition to facilitating the connection or disconnection of the underwater cable 5 from the gate leaf device 3, it greatly reduces the lateral component of gravity pulling force on the underwater cable 5 during its lifting and lowering process, effectively ensuring the reliable contact of the underwater sealing connector 19.

[0129] The locking platform 7, the underwater cable deployment / retraction platform 8, and the underwater cable assembly / disassembly platform 9 are connected by pedestrian steps 11; a corridor 12 is provided between the symmetrically arranged underwater cable assembly / disassembly platforms 9. The pedestrian steps 11 and the corridor 12 facilitate maintenance work between the locking platform 7, the underwater cable deployment / retraction platform 8, and the underwater cable assembly / disassembly platform 9.

[0130] The underwater cable reeling platform 8 is also equipped with a control cabinet 17 and a power distribution cabinet 18, which are electrically connected to the cable reel 13. The drive mechanism 4 is powered and controlled by the electrical connection between the control cabinet 17 and the power distribution cabinet 18 and the cable reel 13.

[0131] The deployment method for the intelligent synchronous deployment and take-up device of the single-unit combined underwater cable is a single-bundle single-stage deployment method;

[0132] The single-bundle single-level deployment method is to use a single bundle of underwater cables to power and control all the gate leaf devices 3 in a gate well 1.

[0133] In the single-unit combination unit, any two adjacent upper and lower gate leaf devices 3 are provided with a limit groove 34 on the upper gate leaf device 3, and each gate leaf device 3 in the single-unit combination unit is matched with an underwater cable intelligent synchronous winding and unwinding device 6.

[0134] The limiting slide 34 has a U-shaped cross-section. End plates 38 are respectively provided on both sides of the open end of the limiting slide 34. A hinge cover plate 36 is provided on one end plate 38 and 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. A rib plate 41 is provided behind the end plate 38 connected to the hinge cover plate 36 by bolts 37 and on the limiting slide 34. The bolts 37 pass through the end plate 38 and connect to the rib plate 41. A handle 35 is provided on the side of the hinge cover plate 36 away from the limiting slide 34. The bolts 37 are double-fixed at both ends by nuts 39. One end of the bolt head 40 is fixed to the rib plate 41 of the limiting slide 34 by the nut 39, and the other end, the screw 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 limiting position between the underwater cable 5 and the door leaf device 3, the constraint of the hinge cover plate 36 is released by removing the nut 39 at one end of the screw 42. Then, a tool is used to hook the handle 35 to flip the hinge cover plate 36 and open the closed end of the limiting slide groove 34. An elongated hole 43 is provided at the position corresponding to the screw 42 on the hinge cover plate 36. By setting a limiting slide groove 34 and using a hinge cover plate 36 with a handle 35 connected to its two end plates 38 by bolts 37 to seal the opening end, the underwater cable 5 can be effectively prevented from detaching from the door leaf device 3 during the deployment and retrieval process. The bolts 37 are double-fixed at both ends by nuts 39. One end of the bolt 37 is fixed to the rib plate 41 of the limiting slide groove 34 by the nut 39, and the other end of the bolt 42 is fixed to the two end plates 38 of the limiting slide groove 34 by the nut 39 to limit the underwater cable 5. When the underwater cable 5 is released from the limiting between the door leaf device 3, it is only necessary to remove the nut 39 at one end of the bolt 42 to release the constraint of the hinge cover plate 36. Then, a tool is used to hook the handle 35 to flip the hinge cover plate 36 to open the closed end of the limiting slide groove 34, and the underwater cable 5 can be removed from the limiting slide groove 34. The hinge cover plate 36 is provided with an elongated hole 43 at the corresponding position of the bolt 42 to facilitate its insertion or removal.

[0135] The underwater cable 5 is operated according to the gate leaf device 3 to determine the motor power and control requirements, and then the cross-sectional diameter of the underwater cable 5 can be determined.

[0136] The type and specifications of the cable reel 13 are determined based on the winding and unwinding length of the underwater cable 5 and the structural dimensions of the gate well 1.

[0137] The gate leaf device 3 is an independent single unit, which is divided into 20 single units. The underwater cable adopts a single bundle and single-stage laying method. Each gate leaf device unit uses a bundle of underwater cables 5 for power supply and control. The upper stack gate leaf device unit in the adjacent upper and lower stack gate leaf device units is equipped with an openable limiting groove 34 to allow the underwater cable 5 of the lower stack gate leaf device unit to pass through.

[0138] The underwater cable intelligent synchronous winding and unwinding device 6 of the single-unit combination is equipped with an intelligent cable winding and unwinding control system. The intelligent cable winding and unwinding control system automatically completes the start, stop and follow-up control of the underwater cable intelligent synchronous winding and unwinding device 6 according to the characteristic parameters of the controlled object, tracks the speed of gate lifting or lowering in real time, and adjusts the winding and unwinding speed of underwater cable 5 in real time.

[0139] The operation method of the intelligent synchronous reeling and deployment device for underwater cables of the single-unit combination type includes: First, while using the gantry crane 32 to lift the gate leaf device 3, the intelligent synchronous reeling and deployment device 6 for underwater cables is started to synchronously and at the same speed retrieves the underwater cable 5. After the gate leaf device 3 is lifted to the underwater cable disassembly and assembly platform 9, the plug-in connector of the underwater sealing device 19 is separated and the underwater cable 5 is removed from the limiting slide 34, so that the underwater cable 5 is detached from the gate leaf device 3 above the underwater cable disassembly and assembly platform 9.

[0140] The second step is to lift the gate leaf device 3 above the underwater cable disassembly and assembly platform 9 to the locking platform 7 and then move it directly into the gatehouse.

[0141] The third step is to complete the maintenance of the gate leaf device 3, and then use the gate crane 32 to lower it to the underwater cable disassembly and assembly platform 9, and then connect the underwater connector 19 and move the underwater cable 5 into the limiting slide 34.

[0142] The fourth step involves simultaneously lowering the gate leaf device 3 using the gantry crane 32, and simultaneously lowering the underwater cable 5 to the gate leaf device 3 at the same speed to the working position.

[0143] Control cabinet 17 is equipped with an intelligent cable winding and unwinding control system. Each set of intelligent cable winding and unwinding devices 6 is equipped with one set of intelligent cable winding and unwinding control system. The intelligent cable winding and unwinding control system uses a programmable logic controller and a variable frequency speed control device for control and drive. The control system automatically completes the start, stop and follow-up control of the cable winding and unwinding device according to the characteristic parameters of the controlled object (the gate's lifting and stopping status, moving direction, moving speed, position elevation, load and other parameters), tracks the gate's lifting or lowering speed in real time, and adjusts the cable winding and unwinding speed in real time to keep the two synchronized in real time; thus realizing the intelligent operation of the underwater cable winding and unwinding device and the synchronous tracking of the gate's lifting and lowering.

[0144] A smart control method for an intelligent synchronous winding and unwinding device for underwater cables includes real-time tracking of the gate operator 32's start-up or start-down signal, and controlling the cable reel 13 to wind or unwind the underwater cable 5 at the same speed as the start-up or start-down signal. When several gate leaf devices 3 are sequentially raised or lowered to the elevation of the underwater cable dismantling platform 9, the underwater cable 5 is disconnected or connected to the gate leaf devices 3. The smart control method is implemented through a cable winding and unwinding intelligent control system, and the specific control flow is as follows:

[0145] The winding control process of the underwater cable winding and unwinding intelligent control system is as follows (e.g.) Figure 28 As shown): Simultaneously, when the gantry crane 32 starts lifting the gate, it transmits a "start lifting gate" signal to the control system via a wireless network. The control system then "starts" the cable winding device to rotate in the winding direction. At the same time, a speed sensor installed on the gantry crane 32 detects the gate lifting speed in real time and transmits a "speed" signal to the control system via a wireless network. The control system tracks the gate lifting speed in real time and controls the rotation speed of the cable winding device accordingly, ensuring that the cable winding speed matches the gate lifting speed. When the Nth gate leaf device 3 is raised to the elevation of the underwater cable dismantling platform 9, the gantry crane 32 stops lifting the gate and transmits a "stop lifting gate" signal to the control system via a wireless network. The control system then "stops" the cable winding. The cable retraction device rotates; the underwater cable 5 of the Nth gate leaf device 3 is disconnected from the gate leaf device 3, and the underwater cable 5 of the gate leaf devices 3 below the Nth section is removed from the limiting slide groove 34; the gantry crane 32 continues to start lifting the gate and transmits the "start lifting the gate again" signal to the control system. The control system "starts" the cable retraction device to start rotating in the winding direction; the speed sensor on the gantry crane 32 transmits the "speed" signal to the control system in real time. The control system tracks the lifting speed in real time. When the Nth gate leaf device 3 is raised to the elevation of the locking platform 7, the gantry crane 32 stops lifting the gate and transmits the "stop lifting the gate" signal to the control system. The gantry crane 32 moves the Nth gate leaf device 3 to the gate storage. Each section of gate leaf device 3 in the gate well 1 is removed in this manner.

[0146] The unwinding control process of the underwater cable rewinding intelligent control system is as follows (e.g.) Figure 29(As shown): The gantry crane 32 first moves the Nth gate leaf device 3 to the elevation of the locking platform 7. Simultaneously, it initiates the gate lowering process and transmits a "start lowering" signal to the control system via a wireless network. The control system then "starts" the cable winding device to rotate in the unwinding direction. At the same time, a speed sensor installed on the gantry crane 32 monitors the gate's descent speed in real time and transmits a "speed" signal to the control system via a wireless network. The control system tracks the gate's descent speed and controls the rotation speed of the cable winding device to ensure the cable unwinding speed matches the gate's descent speed. When the Nth gate leaf device 3 descends to the elevation of the underwater cable dismantling platform 9, the gantry crane 32 stops lowering the gate and transmits a "stop lowering" signal to the control system via a wireless network. The control system then "stops" the cable winding... The cable winding device rotates; the underwater cable 5 of the Nth section of the gate leaf device 3 is connected to the gate leaf device 3, and the underwater cables 5 of the gate leaf devices 3 below the Nth section are moved into the limiting groove 34; the gate operator 32 continues to start the gate lowering and transmits the "start gate lowering again" signal to the control system. The control system "starts" the cable winding device to start rotating in the unwinding direction; the speed sensor on the gate operator 32 transmits the "speed" signal to the control system in real time. The control system tracks the gate lowering speed in real time and keeps the cable unwinding speed consistent with the gate lowering speed; when the gate falls to the set position elevation, the gate operator 32 stops the gate lowering and transmits the "stop gate lowering" signal to the control system. The control system "stops" the rotation of the cable winding device; each section of the gate leaf device 3 is lowered in this manner until all the gate leaf devices 3 are lowered.

[0147] The intelligent cable reeling and deployment control system uses a programmable logic controller (PLC) and a variable frequency speed control device for control and drive. The control system automatically completes the start, stop, and follow-up control of the cable reeling and deployment device based on the characteristic parameters of the controlled object (gate lifting and stopping status, moving direction, moving speed, position elevation, load, etc.). It tracks the speed of gate lifting or lowering in real time and adjusts the cable reeling and deployment speed in real time to keep the two synchronized. This realizes intelligent operation of the underwater cable reeling and deployment device and synchronous tracking of gate lifting and lowering, thereby greatly improving the maintenance efficiency of the stepless stratified water intake equipment, shortening maintenance time, increasing the economic benefits of power plant power generation, and ensuring the environmental benefits of downstream water supply.

[0148] Obviously, the above description is only a part of the embodiments of the present invention, and not all of the embodiments. The above embodiments are not intended to limit the present invention, and various modifications and variations can be made to the present invention by those skilled in the art. Any combination, modification, equivalent substitution, improvement, and all other embodiments that can be made by those skilled in the art within the spirit and principles of the present invention should be within the protection scope of the present invention.

Claims

1. An intelligent synchronous deployment and retraction device for underwater cables, characterized in that: Includes a gate well (1), with gate slots (2) on both sides of the gate well (1), a gate in the gate slot (2), and a gate opening device on the gate. The gate includes several gate leaf devices (3). On the gate slot (2) and above the normal water level, along the elevation direction from top to bottom, there are a locking platform (7), an underwater cable reeling and laying platform (8), and an underwater cable disassembly and assembly platform (9). Several underwater cable intelligent synchronous reeling and laying devices (6) are installed on the underwater cable reeling and laying platform (8). The underwater cable intelligent synchronous winding and unwinding device (6) includes a cable drum (13), which is set on the top surface of the swing frame (15). A cable rope limiting pulley (14) is set on the side of the cable drum (13) facing the gate well (1). An underwater cable (5) is set on the cable drum (13). The underwater cable (5) is connected to the drive mechanism (4) through the cable rope limiting pulley (14). The drive mechanism (4) is set on the gate leaf device (3). The swing frame (15) includes an L-shaped boom (23), which is inverted and has a hinge plate (24) at the bottom of the vertical axis of the L-shaped boom (23). The hinge plate (24) is connected to the hinge seat (26) through the hinge shaft (25), and the hinge seat (26) is set on the foundation (27). The horizontal axis of the L-shaped boom (23) is set towards the gate well (1). A hydraulic press head connecting plate (22) is set on the side of the L-shaped boom (23) away from the gate well (1). The hydraulic press head connecting plate (22) is connected to the hydraulic press (21). The hydraulic press (21) is set on the underwater cable reeling platform (8). The swing frame (15) is facing the gate well (1) and is provided with a cable contact prevention side wall limiting pulley (33) directly below the cable rope limiting pulley (14). The swing frame (15) is provided with a frame limiting baffle (16) on the side facing the gate well (1).

2. The intelligent synchronous deployment and retraction 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 deployment and take-up platform (8) is symmetrically arranged on both sides of the center line of the gate slot (2), and the underwater cable assembly and disassembly platform (9) is symmetrically arranged on both sides of the center line of the gate slot (2).

3. The intelligent synchronous deployment and retraction device for underwater cables according to claim 1, characterized in that: The plurality of door leaf devices (3) are independent structures or interconnected by a pin device (28).

4. The intelligent synchronous deployment and retraction device for underwater cables according to claim 1, characterized in that: The underwater cable (5) is connected to the drive mechanism (4) via an underwater connector (19).

5. The intelligent synchronous deployment and retraction device for underwater cables according to claim 1, characterized in that: The locking platform (7), the underwater cable deployment and retrieval platform (8), and the underwater cable assembly and disassembly platform (9) are connected by a pedestrian step (11).

6. The intelligent synchronous deployment and retraction device for underwater cables according to claim 1, characterized in that: The underwater cable reeling platform (8) is also equipped with a control cabinet (17) and a power distribution cabinet (18), which are electrically connected to the cable reel (13).

7. The intelligent synchronous deployment and retraction device for underwater cables according to claim 2, characterized in that: A corridor (12) is provided between the symmetrically arranged underwater cable dismantling and assembly platforms (9).

8. The method for deploying the intelligent synchronous reeling and laying device for underwater cables according to claim 1, characterized in that: The deployment method includes classifying the gate leaf device combination unit into three types according to the number of gate leaf devices (3) installed in the gate well (1) and the capacity of the opening and closing equipment: overall combination unit, stacked combination unit and single combination unit. The overall combination unit adopts the whole bundle hierarchical deployment method, the stacked combination unit adopts the bundle hierarchical deployment method, and the single combination unit adopts the single bundle single level deployment method. The method of tiered deployment is to use a bundle of underwater cables to power and control all gate leaf devices (3) in a gate well (1); The method of bundling and grading is to divide all the gate leaf devices (3) in a gate well (1) into several groups of gate leaf device units, and each group of gate leaf device units is powered and controlled by a bundle of underwater cables. The single-bundle single-level deployment method is to use a single bundle of underwater cables to power and control all the gate leaf devices (3) in a gate well (1); Each gate leaf device (3) in the overall combination unit has a cable connector switch (20) on both sides, and the overall combination unit is equipped with one or two sets of underwater cable intelligent synchronous winding and unwinding devices (6). In the stacked combination unit, the upper stacked door leaf device unit of any two adjacent upper and lower stacked door leaf device units is provided with a limit slide groove (34). Each door leaf device (3) in the stacked combination unit has a cable connector switch (20) on both sides. The stacked combination unit is configured with a matching number of underwater cable intelligent synchronous winding and unwinding devices (6) according to the number of door leaf device units. In the single-unit combination unit, the upper door leaf device (3) of any two adjacent upper and lower door leaf devices (3) is provided with a limit groove (34), and each door leaf device (3) in the single-unit combination unit is matched with an underwater cable intelligent synchronous winding and unwinding device (6). The underwater cable intelligent synchronous winding and unwinding device (6) of the overall combination unit, the stacked combination unit and the single combination unit is equipped with a cable winding and unwinding intelligent control system. The cable winding and unwinding intelligent control system automatically completes the start, stop and follow-up control of the underwater cable intelligent synchronous winding and unwinding device (6) according to the characteristic parameters of the controlled object, tracks the speed of gate lifting or lowering in real time, and adjusts the winding and unwinding speed of the underwater cable (5) in real time.

9. The method for deploying the intelligent synchronous reeling and laying device for underwater cables according to claim 8, characterized in that: The cable connector switch (20) is provided with an upper connector (29), a horizontal connector (30) and a lower connector (31) on its surface.

10. The method for deploying the intelligent synchronous reeling and laying device for underwater cables according to claim 8, characterized in that: The limiting slide (34) has a U-shaped cross section. End plates (38) are provided on both sides of the opening end of the limiting slide (34). A hinge cover plate (36) is provided 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).

11. The method for deploying the intelligent synchronous reel-in and cast-out device for underwater cables according to claim 10, characterized in that: The hinge cover plate (36) is located behind the end plate (38) connected by bolts (37) and has a rib plate (41) on the limiting slide groove (34). The bolts (37) pass through the end plate (38) and are connected to the rib plate (41).

12. The method for deploying the intelligent synchronous reel-in and cast-out device for underwater cables according to claim 10, characterized in that: A handle (35) is provided on the side of the hinge cover plate (36) away from the limiting slide groove (34).

13. The method for deploying the intelligent synchronous reel-in and lay-out device for underwater cables according to claim 8, characterized in that: The characteristic parameters include the gate's lifting / lowering, stopping status, direction of movement, speed of movement, position elevation, and load.

14. The method for deploying the intelligent synchronous deployment and retraction device for underwater cables according to claim 8, characterized in that: The deployment method includes the following steps: First, while using the gate opening device to lift the gate leaf device (3), start the underwater cable intelligent synchronous retraction device (6) to synchronously and at the same speed retrieve the underwater cable (5). After the gate leaf device (3) is lifted to the underwater cable disassembly and assembly platform (9), separate the underwater connector (19) plug-in joint and remove the underwater cable (5) from the limiting slide (34) and / or cable connector switch (20) so that the underwater cable (5) is removed from the gate leaf device (3) above the underwater cable disassembly and assembly platform (9). The second step is to lift the gate leaf device (3) above the underwater cable disassembly and assembly platform (9) to the locking platform (7), fix it by the locking beam (10), disassemble the pin shaft device (28) between the gate leaf devices (3) and move it into the storage room. For independent gate leaf devices (3) that are not connected by pin shafts, lift them to the locking platform (7) and move them directly into the storage room. The third step is to complete the maintenance of the door leaf device (3), use the door opening equipment to assemble it on the locking platform (7), and after the assembly is completed, lower it to the underwater cable disassembly and assembly platform (9), and then connect the underwater connector (19) and move the underwater cable (5) into the limiting slide (34) and / or cable connector switch (20). In the fourth step, while using the door opening device to lower the door leaf device (3), start the underwater cable intelligent synchronous winding and unwinding device (6) to synchronously and at the same speed lower the underwater cable (5) to the door leaf device (3) to the working position.

15. The intelligent control method for the intelligent synchronous deployment and retraction device of underwater cable according to claim 1, characterized in that: The intelligent control method includes real-time tracking of the start-up or start-down signal of the door opening device, and controlling the cable reel (13) to wind up or unwind the underwater cable (5) at the same speed as the start-up or start-down signal. When several door leaf devices (3) are raised or lowered to the elevation of the underwater cable disassembly and assembly platform (9) in sequence, the underwater cable (5) is disconnected or connected to the door leaf device (3).

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