Ship lift lock head butt joint sealing frame water leakage positioning detection device
By using a positioning leak detection rope and controller system in the sealing frame of the ship lift gate, the problem of leaks not being detected in time was solved, enabling rapid and accurate location and handling of leaks, and ensuring the safe operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-21
AI Technical Summary
In the existing technology, water leakage in the docking sealing frame cannot be detected in time, which leads to unsafe operation of the ship lift equipment and makes inspection and handling difficult.
The system employs a location-based leak detection rope and controller system. The leak point is determined by short-circuiting the detection rope. Combined with the controller, local control station, and host computer, the leak location is displayed in real time, facilitating rapid handling.
It enables rapid location and accurate display of leak points, reduces response time, and ensures safe equipment operation and timely handling.
Smart Images

Figure CN224151913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ship lift technology, and more specifically, to a water leakage positioning and detection device for the docking sealing frame of a ship lift gate. Background Technology
[0002] Vertical lift ship lifts are equipped with docking sealing frames at the upper and lower lock gates. When the ship-carrying compartment needs to dock with the channel, both the lock gate and the ship-carrying compartment gate are closed first. Then, the U-shaped docking sealing frame is pushed out, forming a sealed gap between the ship-carrying compartment gate and the lock gate. The gap is then filled with water to create pressure. After this pressure is achieved, both lock gates are opened, completing the docking of the ship-carrying compartment with the channel. Ships can then enter and exit the ship-carrying compartment. The docking process is the reverse of the above steps. To ensure a tight seal, a C-type water seal and an L-type water-stop device are generally installed on the cross-section of the U-shaped docking sealing frame. The C-type water seal provides expandable space when the sealing frame is in operation, while the L-type water-stop device ensures the gap is sealed. When the ship-carrying compartment is docked, if the C-type water seal or L-type water-stop device fails to seal (due to obstruction by foreign objects in the water or damage to the device itself), a large amount of water may leak into the lock gate or ship-carrying compartment, causing equipment damage and the ship lift to stop operating. The working status of the docking sealing frame is generally determined by on-site inspections by maintenance personnel. Utility Model Content
[0003] The present invention aims to provide a water leakage location detection device for the docking sealing frame of a ship lift gate, so as to solve the problems of water leakage due to docking seal failure in the prior art, unsafe operation of ship lift equipment, and difficulty for staff to inspect and handle the problem.
[0004] The embodiments of this utility model are implemented as follows:
[0005] This utility model embodiment provides a water leakage positioning and detection device for the docking sealing frame of a ship lift gate, which includes a controller;
[0006] One end of the controller is equipped with a positioning leak detection rope that detects leaks by short-circuiting upon contact with water. The positioning leak detection rope is electrically connected to the controller. The other end of the controller is equipped with a local control station. The controller is electrically connected to one end of the local control station.
[0007] The other end of the aforementioned local control station is equipped with a host computer, which is electrically connected to the other end of the aforementioned local control station. The aforementioned positioning leakage detection rope is fixed to the back water surface of the gate head docking sealing frame.
[0008] In use, the aforementioned positioning leak detection rope is connected to the aforementioned controller. Once the water seal leaks, a short circuit will occur at a certain point on the positioning leak detection rope. The positioning leak detection rope will transmit the short circuit electrical signal to the aforementioned controller. The aforementioned controller calculates the location of the short circuit point and issues an audible and visual alarm. The aforementioned controller transmits the alarm signal to the aforementioned local control station. After receiving the alarm signal from the aforementioned controller, the aforementioned local control station performs calibration calculations and transmits the leak location calculated by the aforementioned local control station to the aforementioned host computer. The aforementioned host computer can then display the specific leak location, reminding the staff that a leak has occurred at the sealing frame and that they need to go to the indicated leak point for inspection and handling.
[0009] The leak location detection device for the docking sealing frame of a ship lift gate disclosed in this embodiment detects the distance from the leak point to the starting point using the aforementioned leak detection rope. This distance is then transmitted to the local control station via the aforementioned controller. The local control station, through calibration calculation, displays the specific location of the leak in the docking sealing frame on the aforementioned host computer. This facilitates rapid on-site inspection and handling by personnel, reducing response time and potential losses. Consequently, this leak location detection device for the docking sealing frame of a ship lift gate offers the advantages of simple structure, rapid response, high accuracy, reusability, easy timely detection of leaks, ensuring the safe operation of the ship lift equipment, and convenient and rapid handling by personnel.
[0010] Optionally: A U-shaped sealing frame is provided on one side of the aforementioned positioning leak detection rope, and the aforementioned positioning leak detection rope is detachably and fixedly connected to the back surface of the aforementioned U-shaped sealing frame.
[0011] With this setup, when the ship carrier needs to connect with the waterway, the lock gates at the head gate and the ship carrier are closed first. Then, the U-shaped sealing frame is pushed out through the hydraulic system, sealing the two outer sides and bottom of the ship carrier door. The gap between the ship carrier door and the lock gate is sealed. The gap is then filled with water. After the water level is increased, the ship carrier rises. When it reaches the appropriate position, the two ship carrier doors and the lock gate at the other end of the ship carrier are opened, completing the connection between the ship carrier and the waterway. Ships can then enter and exit the ship carrier. During this process, the positioning leak detection rope can detect leaks and cause a short circuit. The short circuit signal is transmitted to the controller, which transmits it to the local control station, which then transmits it to the host computer. The host computer can then directly display the specific leak location, allowing staff to address potential leaks early.
[0012] Optionally: A lead wire is provided between the above-mentioned positioning leak detection rope and the above-mentioned controller, one end of the lead wire is electrically connected to one end of the above-mentioned positioning leak detection rope, and the other end of the lead wire is electrically connected to the above-mentioned controller.
[0013] With this setup, if the water seal leaks, the lead wire can quickly transmit the signal detected by the positioning leak detection rope to the controller, which can then issue an alarm.
[0014] Optionally: The aforementioned positioning leak detection rope has a first sensing wire and a second sensing wire, the outer surfaces of the first sensing wire and the second sensing wire have a water-conductive outer shell, and both the first sensing wire and the second sensing wire are electrically connected to the controller.
[0015] With this configuration, the first and second sensor lines can detect whether there is leakage at the water seal in real time. Once leakage occurs, a short circuit will be established, and the short circuit signal will be transmitted to the controller for alarm activation.
[0016] Optionally, the above-mentioned positioning leak detection rope also has a first signal line and a second signal line, both of which are electrically connected to the controller.
[0017] With this configuration, the first signal line and the second signal line are arranged to facilitate the controller in sending electrical signals to the first signal line and the second signal line, and to detect changes in the first sensing line and the second sensing line in real time, thereby achieving effective and rapid transmission of electrical signals.
[0018] Optionally, the controller is electrically connected to an audible and visual alarm device for alerting the user and an LED display screen for showing the distance to the leak.
[0019] With this configuration, when the first and second sensor lines short-circuit at a certain point due to water, the short-circuit point will cause a change in the transmission of electrical signals on the first and second signal lines. After the controller detects the water leakage, it will trigger an audible and visual alarm and display the distance to the water leakage point on the LED display screen, making it easier for staff to judge the size of the water leakage point and thus determine the level of danger.
[0020] Optionally, the controller is equipped with a relay output and an RS485 communication output, and the controller is electrically connected to the local control station through the relay output and the RS485 communication output.
[0021] With this configuration, the relay output and RS485 communication output facilitate the transmission of the controller's alarm signal to the local control station. This allows the local control station to perform calibration calculations, and the calculated data is then transmitted to the host computer. The host computer can then visually display the specific location of the leak in the sealing frame, enabling staff to quickly arrive at the site for targeted inspection and repair, thus reducing response time and potential losses.
[0022] Optionally: The host computer has a graphical interface for the docking sealing frame, and the outer periphery of the graphical interface for the docking sealing frame has a number indicating the location of the leak.
[0023] With this configuration, after the distance signal of the leak point detected by the controller is transmitted to the host computer, the graphical interface of the docking sealing frame of the host computer will pop up, and the corresponding leak location will be displayed at the leak location number. The staff can intuitively know the leak location, rush to the leak point as soon as possible, and take control measures to prevent the situation from escalating.
[0024] Optionally: The above-mentioned U-shaped sealing frame has a U-shaped structure, and the above-mentioned positioning leakage detection rope is located on the back water surface of the above-mentioned U-shaped structure.
[0025] This design ensures the strength of the U-shaped sealing frame, allowing it to be securely sealed to the sides and bottom of the cabin, thus facilitating the detection of leaks by the positioning leak detection rope.
[0026] Optionally, the cross-section of the above-mentioned U-shaped structure is equipped with a C-type water seal and an L-type water-stopping device, which are slidably sealed and clamped on both sides and the bottom of the ship compartment.
[0027] With this configuration, the aforementioned C-type water seal and L-type water-stopping device are pressed tightly against the mating surface, creating a sealed water-filling gap between the gate head and the two gates of the ship chamber, facilitating water injection.
[0028] In summary, the leakage location detection device for the docking sealing frame of the ship lift gate disclosed in this utility model has the advantages of simple structure, rapid response, high accuracy, reusability, easy timely detection of leakage points, ensuring the safe operation of the ship lift equipment, and facilitating quick handling by staff. Attached Figure Description
[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is an electrical schematic diagram of a water leakage positioning and detection device for the docking sealing frame of a ship lift gate in an embodiment of this utility model;
[0031] Figure 2 This is a layout diagram of a water leakage positioning and detection device for the docking sealing frame of a ship lift gate in an embodiment of this utility model;
[0032] Figure 3 This is a schematic diagram of the structure of the U-shaped sealing frame in an embodiment of this utility model.
[0033] Icons: 1-Controller, 2-Location leak detection rope, 3-Local control station, 4-Host computer, 5-U-shaped sealing frame, 6-Leading wire, 7-First sensor wire, 8-Second sensor wire, 9-First signal wire, 10-Second signal wire, 11-Relay output, 12-RS485 communication output, 13-Connecting sealing frame graphical interface, 14-Leakage location number, 15-U-shaped structure, 16-C-type water seal, 17-L-type water-stopping device. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0036] Example
[0037] See Figure 1 , Figure 2 and Figure 3 This embodiment proposes a water leakage positioning and detection device for the docking sealing frame of the ship lift gate, including a controller 1;
[0038] One end of the controller 1 is equipped with a positioning leak detection rope 2 that detects leaks by short-circuiting when exposed to water. The positioning leak detection rope 2 is electrically connected to the controller 1. The other end of the controller 1 is equipped with a local control station 3. The controller 1 is electrically connected to one end of the local control station 3.
[0039] The other end of the local control station 3 is equipped with a host computer 4, which is electrically connected to the other end of the local control station 3. The positioning leakage detection rope 2 is fixed to the back water surface of the gate head docking sealing frame.
[0040] In use, the positioning leak detection rope 2 is connected to the controller 1. Once the water seal leaks, a short circuit will occur at a certain point on the positioning leak detection rope 2. The positioning leak detection rope 2 will transmit the short circuit electrical signal to the controller 1. The controller 1 calculates the location of the short circuit point and issues an audible and visual alarm. The controller 1 transmits the alarm signal to the local control station 3. After receiving the alarm signal from the controller 1, the local control station 3 performs calibration calculations and transmits the leak location calculated by the local control station 3 to the host computer 4. The host computer 4 can then display the specific leak location and remind the staff that there is a leak in the sealing frame and that they need to go to the indicated leak point for inspection and treatment.
[0041] The leak location detection device for the docking sealing frame of a ship lift gate disclosed in this embodiment detects the distance from the leak point to the starting point by using a leak detection rope 2. The distance is transmitted to the local control station 3 via the controller 1. The local control station 3 calculates the distance through calibration and displays the specific location of the leak in the docking sealing frame on the host computer 4. This allows staff to quickly arrive at the site for targeted inspection and treatment, reducing response time and potential losses. As a result, the leak location detection device for the docking sealing frame of a ship lift gate has the advantages of simple structure, rapid response, high accuracy, reusability, easy timely detection of leak points, ensuring the safe operation of the ship lift equipment, and facilitating quick handling by staff.
[0042] See Figure 1 , Figure 2 and Figure 3 The positioning leak detection rope 2 is equipped with a U-shaped sealing frame 5 on one side. The positioning leak detection rope 2 is detachably fixed to the back surface of the U-shaped sealing frame 5. When the ship compartment needs to be connected to the channel, the lock gate and the ship compartment gate are closed first. Then, the U-shaped sealing frame 5 is pushed out through the hydraulic system, so that the U-shaped sealing frame 5 seals the two outer sides and bottom surface of the ship compartment door. The gap between the ship compartment door and the lock gate is sealed. Then, water is filled into the gap. After the horizontal pressure is filled, the ship compartment rises. When it rises to the appropriate position, the two ship compartment doors and the lock gate at the other end of the ship compartment are opened to complete the connection between the ship compartment and the channel. Ships can enter and exit the ship compartment. During this process, the positioning leak detection rope 2 can detect the leak and cause a short circuit. The short circuit signal is transmitted to the controller 1, the controller 1 transmits it to the local control station 3, the local control station 3 transmits it to the host computer 4, and the host computer 4 can directly display the specific leak location, which is convenient for staff to deal with the potential leak in advance.
[0043] A lead wire 6 is provided between the positioning leak detection rope 2 and the controller 1. One end of the lead wire 6 is electrically connected to one end of the positioning leak detection rope 2, and the other end of the lead wire 6 is electrically connected to the controller 1. Once the water seal leaks, the lead wire 6 can quickly transmit the signal detected by the positioning leak detection rope 2 to the controller 1, so that the controller 1 can issue an alarm prompt.
[0044] The positioning leak detection rope 2 has a first sensing line 7 and a second sensing line 8. The outer surfaces of the first sensing line 7 and the second sensing line 8 have a shell that conducts electricity when exposed to water. The first sensing line 7 and the second sensing line 8 are both electrically connected to the controller 1. The first sensing line 7 and the second sensing line 8 can detect whether there is a leak at the water seal in real time. Once a leak occurs, a short circuit will be generated, and the short circuit signal will be transmitted to the controller 1 for convenient control and alarm.
[0045] The positioning leak detection rope 2 also has a first signal line 9 and a second signal line 10. Both the first signal line 9 and the second signal line 10 are electrically connected to the controller 1. The arrangement of the first signal line 9 and the second signal line 10 facilitates the controller 1 to send electrical signals to the first signal line 9 and the second signal line 10, and detects changes in the first sensing line 7 and the second sensing line 8 in real time, thus achieving effective rapid transmission of electrical signals.
[0046] The controller 1 is electrically connected to an audible and visual alarm device (not shown in the figure) for alerting and an LED display screen (not shown in the figure) for displaying the distance to the leak point. When the first sensor line 7 and the second sensor line 8 are short-circuited at a certain position due to water, the short circuit will cause a change in the transmission of electrical signals of the first signal line 9 and the second signal line 10. After the controller 1 detects the leak, it will issue an audible and visual alarm through the audible and visual alarm device and display the distance to the leak point on the LED display screen, so that the staff can judge the size of the leak point and thus determine the danger level.
[0047] See Figure 1 , Figure 2 and Figure 3 The controller 1 is equipped with a relay output 11 and an RS485 communication output 12. The controller 1 is electrically connected to the local control station 3 through the relay output 11 and the RS485 communication output 12. The relay output 11 and the RS485 communication output 12 facilitate the transmission of alarm signals from the controller 1 to the local control station 3. The local control station 3 can then perform calibration calculations, and the calculated data is transmitted to the host computer 4. The host computer 4 can then visually display the specific location of the leak in the sealing frame, allowing staff to quickly arrive at the site for targeted inspection and treatment, reducing response time and potential losses.
[0048] The host computer 4 has a docking sealing frame graphical interface 13. The outer perimeter of the docking sealing frame graphical interface 13 has a water leakage location number 14. This setting allows the docking sealing frame graphical interface 13 of the host computer 4 to pop up after the water leakage point distance signal detected by the controller 1 is transmitted to the host computer 4. The corresponding water leakage point will be displayed at the water leakage location number 14. The staff can intuitively know the water leakage point, rush to the water leakage point as soon as possible, and take control measures to prevent the situation from escalating.
[0049] The U-shaped sealing frame 5 has a U-shaped structure 15, and the positioning leak detection rope 2 is located on the back side of the U-shaped structure 15. This ensures the strength of the U-shaped sealing frame 5, so that the U-shaped sealing frame 5 can be firmly sealed on both sides and the bottom of the ship compartment, thereby facilitating the positioning leak detection rope 2 to detect whether there is a leak.
[0050] The cross-section of the U-shaped structure 15 is equipped with a C-type water seal 16 and an L-type water-stopping device 17. The C-type water seal 16 and the L-type water-stopping device 17 are slidably sealed and clamped on both sides and the bottom of the ship chamber. The C-type water seal 16 and the L-type water-stopping device 17 are pressed tightly on the mating surface, so that a sealed water-filling gap is formed between the gate head and the two gates of the ship chamber, which facilitates water injection.
[0051] See Figure 1 , Figure 2 and Figure 3 The specific working principle of the leakage positioning and detection device of the lock head docking sealing frame of the ship lift in this embodiment is as follows:
[0052] First, the U-shaped sealing frame 5 is a telescopic structure that moves back and forth under the drive of the hydraulic cylinder. The movable end of the C-shaped water seal 16 moves together with the U-shaped sealing frame 5 and is pressed against the mating surface by the L-shaped water-stopping device 17 to form a water-filling gap. The positioning leakage detection rope 2 is arranged on the back water surface of the U-shaped sealing frame 5 and can be installed on the U-shaped structure 15 next to the water seal by adhesive.
[0053] Secondly, the controller 1 sends electrical signals to the first signal line 9 and the second signal line 10 of the leak detection rope 2, and monitors the changes of the first sensing line 7 and the second sensing line 8 in real time. When the first sensing line 7 and the second sensing line 8 short-circuit at a certain position due to water, the short-circuit point will cause the transmission of electrical signals to change. This change is transmitted to the controller 1 through the first signal line 9 and the second signal line 10. The controller 1 accurately calculates the position of the short-circuit point by measuring the time difference of signal transmission or analyzing the degree of signal attenuation, thereby realizing the location of the leak.
[0054] Finally, after detecting a leak, controller 1 sounds an alarm via an audible and visual alarm and displays the distance to the leak point on an LED display screen. Controller 1 transmits the leak point distance signal to the local control station 3 via relay output 11 or RS485 communication output 12. After receiving the alarm signal or leak point distance signal from controller 1, the local control station 3 performs its own calibration calculation. After processing the alarm signal or leak point distance signal, the local control station 3 transmits it to the host computer 4. The docking sealing frame graphical interface 13 of the host computer 4 pops up, and the leak point distance signal is displayed at the leak location number 14 on the docking sealing frame graphical interface 13. The corresponding position light at the leak location number 14 is lit, allowing staff to intuitively identify the leak location and rush to the leak point as soon as possible to take control measures to prevent the situation from escalating.
[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A device for detecting and locating water leakage in the sealing frame of a ship lift lock head, characterized in that: Includes controller (1); One end of the controller (1) is provided with a positioning leak detection rope (2) that determines leakage by short circuit when exposed to water. The positioning leak detection rope (2) is electrically connected to the controller (1). The other end of the controller (1) is provided with a local control station (3). The controller (1) is electrically connected to one end of the local control station (3). The other end of the local control station (3) is equipped with a host computer (4), which is electrically connected to the other end of the local control station (3). The positioning leakage detection rope (2) is fixed on the back water surface of the gate head docking sealing frame.
2. The leakage positioning and detection device for the docking sealing frame of a ship lift gate as described in claim 1, characterized in that: The positioning leak detection rope (2) has a U-shaped sealing frame (5) on one side, and the positioning leak detection rope (2) is detachably and fixedly connected to the back surface of the U-shaped sealing frame (5).
3. The leakage positioning and detection device for the docking sealing frame of the ship lift gate as described in claim 1, characterized in that: A lead wire (6) is provided between the positioning leak detection rope (2) and the controller (1). One end of the lead wire (6) is electrically connected to one end of the positioning leak detection rope (2), and the other end of the lead wire (6) is electrically connected to the controller (1).
4. The leakage positioning and detection device for the docking sealing frame of the ship lift gate as described in claim 1, characterized in that: The positioning leak detection rope (2) has a first sensing line (7) and a second sensing line (8). The outer surfaces of the first sensing line (7) and the second sensing line (8) have a water-conductive outer shell. The first sensing line (7) and the second sensing line (8) are both electrically connected to the controller (1).
5. A leakage positioning and detection device for the docking sealing frame of a ship lift lock as described in claim 4, characterized in that: The positioning leak detection rope (2) also has a first signal line (9) and a second signal line (10), both of which are electrically connected to the controller (1).
6. The leakage positioning and detection device for the docking sealing frame of a ship lift gate as described in claim 1, characterized in that: The controller (1) is electrically connected to an audible and visual alarm device for alerting and an LED display screen for displaying the distance to the leak point.
7. The leakage positioning and detection device for the docking sealing frame of the ship lift gate as described in claim 1, characterized in that: The controller (1) is equipped with a relay output (11) and an RS485 communication output (12). The controller (1) is electrically connected to the local control station (3) through the relay output (11) and the RS485 communication output (12).
8. The leakage positioning and detection device for the docking sealing frame of the ship lift gate as described in claim 1, characterized in that: The host computer (4) has a docking sealing frame graphical interface (13), and the outer periphery of the docking sealing frame graphical interface (13) has a water leakage location number (14).
9. A leakage positioning and detection device for the docking sealing frame of a ship lift gate according to claim 2, characterized in that: The U-shaped sealing frame (5) has a U-shaped structure (15), and the positioning leakage detection rope (2) is located on the back side of the U-shaped structure (15).
10. A leakage positioning and detection device for the docking sealing frame of a ship lift gate according to claim 9, characterized in that: The cross section of the U-shaped structure (15) is equipped with a C-type water seal (16) and an L-type water-stopping device (17), which are slidably sealed and clamped on both sides and the bottom of the cabin.