Real-time online monitoring system for ship lock reverse radial gate

Abstract

The utility model belongs to the technical field of ship lock on-line monitoring, and provides a ship lock anti-radial gate real-time on-line monitoring system, which comprises an industrial personal computer, a data acquisition box communicated with the industrial personal computer, and a real-time on-line monitoring module communicated with the data acquisition box, the real-time on-line monitoring module comprises a working stress real-time on-line monitoring unit of main components of the ship lock anti-radial gate, a ship lock anti-radial gate vibration acceleration real-time on-line monitoring unit, a ship lock anti-radial gate bearing working state real-time on-line monitoring unit and a working valve well operation process sound real-time on-line monitoring unit. A working stress real-time on-line monitoring unit of the hydraulic hoist rack; and a vibration acceleration real-time on-line monitoring unit of the hydraulic hoist rack. Based on the structural characteristics of the ship lock anti-radial gate, the design of different measuring point positions and the model selection of the corresponding sensors, the operation change conditions of different parts of the ship lock anti-radial gate can be more accurately obtained, and abundant data support is provided for accurately evaluating the structural safety of the ship lock anti-radial gate.

Description

Technical Field

[0001] The utility model belongs to the technical field of on-line monitoring of ship locks. Specifically, it relates to a real-time on-line monitoring system for the reverse arc gate of a ship lock. Background Technique

[0002] The reverse arc gate of a ship lock mainly consists of a gate structure, support arms, water stop members, etc. The upstream and downstream sides of the gate structure are both enclosed by panels, and each reverse arc gate is equipped with a hydraulic hoist. The working principle of the reverse arc gate of a ship lock is as follows: The hoist group is driven by a hydraulic hoist to drive the reverse arc gate to rotate around the hinge shaft, realizing the opening and closing under dynamic water conditions; when closed, it forms a sealed water barrier, and when opened, it guides the water flow through the water conveyance corridor. The normal operation of the reverse arc gate of a ship lock is an indispensable part of the normal operation of the ship lock, and it is necessary to implement real-time monitoring; however, in the prior art, the operation monitoring of ship locks mainly focuses on the miter gates of ship locks. For example, in Chinese Patent CN217765081U, a real-time on-line monitoring system for the miter gate of a water conservancy and hydropower project, the sensors and measuring point arrangements used for monitoring are all based on the miter gate. Due to the difference in the structure between the reverse arc gate and the miter gate of a ship lock, the sensors and measuring point arrangements used in the miter gate monitoring scheme cannot be fully adapted to the on-line monitoring of the reverse arc gate of a ship lock. Content of the Utility Model

[0003] The purpose of the utility model is to provide a real-time on-line monitoring system for the reverse arc gate of a ship lock to solve the technical problems existing in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A real-time on-line monitoring system for the reverse arc gate of a ship lock includes an industrial control computer, a data acquisition box communicating with the industrial control computer, and a real-time on-line monitoring module communicating with the data acquisition box; the real-time on-line monitoring module includes a working stress real-time on-line monitoring unit for the main components of the reverse arc gate of the ship lock, a vibration acceleration real-time on-line monitoring unit for the reverse arc gate of the ship lock, a working state real-time on-line monitoring unit for the bearings of the reverse arc gate of the ship lock, a real-time on-line monitoring unit for the sound during the operation of the working valve well, a working stress real-time on-line monitoring unit for the hydraulic hoist frame, and a vibration acceleration real-time on-line monitoring unit for the hydraulic hoist frame.

[0006] Preferably, the working stress real-time on-line monitoring unit for the main components of the reverse arc gate of the ship lock includes a first stress sensor, a second stress sensor, a third stress sensor, and a fourth stress sensor arranged on the side of the reverse arc gate of the ship lock, a strain sensor A1, a strain sensor A2, a strain sensor A3, a strain sensor B1, a strain sensor B2, a strain sensor B3, and a strain sensor B4 arranged on the front of the reverse arc gate of the ship lock, a strain sensor C, a strain sensor D, and a strain sensor E.

[0007] Preferably, the strain sensors A1, A2, and A3 are located at the middle left position of the lock reverse arc gate and are arranged at intervals along the direction from the center to the shore on the lock reverse arc gate; the strain sensors B1, B2, B3, and B4 are located at the middle right position of the lock reverse arc gate and are arranged at intervals along the direction from the center to the shore on the lock reverse arc gate; the strain sensors C, D, and E are located at the lower middle side of the lock reverse arc gate and are arranged at intervals from top to bottom.

[0008] Preferably, the real-time online monitoring unit for the vibration acceleration of the lock reverse arc gate includes a first acceleration sensor arranged on the lower left side of the lock reverse arc gate and a second acceleration sensor arranged on the lower right side, a third acceleration sensor arranged on the upper left side of the lock reverse arc gate and a fourth acceleration sensor arranged on the upper right side, and the first acceleration sensor and the third acceleration sensor on the left side correspond vertically, and the second acceleration sensor and the fourth acceleration sensor on the right side correspond vertically.

[0009] Preferably, the real-time online monitoring unit for the working state of the lock reverse arc gate bearing includes a first acoustic emission sensor arranged at the lower end of the bearing and a second acoustic emission sensor arranged at the upper end of the bearing.

[0010] Preferably, the real-time online monitoring unit for the sound during the operation of the working valve well includes a piezoelectric vibration sensor installed on the solenoid valve body.

[0011] Preferably, the real-time online monitoring unit for the working stress of the hydraulic hoist frame includes strain sensors arranged on the flange plates of the left support structure and the right support structure.

[0012] Preferably, the real-time online monitoring unit for the vibration acceleration of the hydraulic hoist frame includes acceleration sensors arranged on the flange plates of the left support structure and the right support structure.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] (1) According to the structural characteristics of the lock reverse arc gate, the present utility model covers the real-time online monitoring of multiple key parts such as the main components of the lock reverse arc gate, vibration acceleration, bearing working state, sound during the operation of the working valve well, working stress and vibration acceleration of the hydraulic hoist frame. The design of different measuring point positions and the corresponding sensor selection can more accurately obtain the operation change conditions of different parts of the lock reverse arc gate, providing rich data support for accurately evaluating the structural safety of the lock reverse arc gate.

[0015] (2) In this utility model, considering the structural characteristics of the reverse arc gate of the ship lock, multiple groups of strain sensors are arranged in the middle left, middle right and lower side of the front of the reverse arc gate, covering the main areas where the gate body is impacted by water flow and mechanical loads. This layout can capture the stress gradient changes in different directions on the front of the gate body. Especially the symmetrical distribution in the middle left / right area can analyze the stress differences caused by uneven water pressure during the opening and closing process of the gate body; the 4 stress sensors on the side and the 3 strain sensors on the lower side complement each other, covering the stress distribution of the lateral support structure and the bottom water stop area of the gate body. These areas are prone to fatigue damage due to long-term impact and corrosion by high water heads.

[0016] (3) In this utility model, the real-time online monitoring unit for the vibration acceleration of the reverse arc gate of the ship lock adopts the first to fourth acceleration sensors and arranges them at different positions on the upper, lower, left and right of the reverse arc gate of the ship lock respectively, and the sensors on the left and right sides correspond vertically. Such a layout can comprehensively and accurately capture the vibration conditions of the reverse arc gate of the ship lock at different positions and directions, which helps to more accurately analyze the vibration characteristics and operating status of the reverse arc gate of the ship lock. Brief Description of the Drawings

[0017] Figure 1 is the principle block diagram of this utility model.

[0018] Figure 2 is the schematic diagram of the side view of the reverse arc gate of the ship lock in this utility model and the layout of the measuring points thereon.

[0019] Figure 3 is the schematic diagram of the top view of the reverse arc gate of the ship lock in this utility model and the layout of the measuring points thereon.

[0020] Figure 4 is the schematic diagram of the front view of the reverse arc gate of the ship lock in this utility model and the layout of the measuring points thereon.

[0021] Figure 5 is Figure 4 the partial enlarged schematic diagram of the upper part in

[0022] Figure 6 is Figure 4 the partial enlarged schematic diagram of the lower part in

[0023] Figure 7 is the schematic diagram of the measuring point layout of the hydraulic hoist of the reverse arc gate of the ship lock in this utility model.

[0024] Figure 8 is Figure 7 the partial enlarged schematic diagram of

[0025] Among them, the names corresponding to the attached drawing reference numerals are as follows: 1 - industrial control computer, 2 - data acquisition box, 3 - real-time online monitoring unit for the working stress of the main components of the ship lock reverse arc gate, 4 - real-time online monitoring unit for the vibration acceleration of the ship lock reverse arc gate, 5 - real-time online monitoring unit for the working status of the bearings of the ship lock reverse arc gate, 6 - real-time online monitoring unit for the sound during the operation of the working valve well, 7 - real-time online monitoring unit for the working stress of the hydraulic hoist frame, 8 - real-time online monitoring unit for the vibration acceleration of the hydraulic hoist frame, 9 - ship lock reverse arc gate, 10 - cable tray;

[0026] 31 - first stress sensor, 32 - second stress sensor, 33 - third stress sensor, 34 - fourth stress sensor, 35 - strain sensor A1, 36 - strain sensor A2, 37 - strain sensor A3, 38 - strain sensor B1, 39 - strain sensor B2, 310 - strain sensor B3, 311 - strain sensor B4, 312 - strain sensor C, 313 - strain sensor D, 314 - strain sensor E;

[0027] 41 - first acceleration sensor, 42 - second acceleration sensor, 43 - third acceleration sensor, 44 - fourth acceleration sensor;

[0028] 51 - first acoustic emission sensor, 52 - second acoustic emission sensor;

[0029] 71 - strain sensor;

[0030] 81 - acceleration sensor. Specific embodiments

[0031] In order to enable those skilled in the art to have a clearer understanding and knowledge of the present utility model, the following further details the present utility model in conjunction with embodiments. It should be known that the specific embodiments described below are only used to explain the present utility model for easy understanding. The technical solutions provided by the present utility model are not limited to the technical solutions provided by the following embodiments, and the technical solutions provided by the embodiments should not limit the protection scope of the present utility model.

[0032] Embodiment

[0033] As Figures 1 to 8 shown, this embodiment provides a real-time online monitoring system for a ship lock reverse arc gate, which mainly consists of an industrial control computer 1, a data acquisition box 2, and a real-time online monitoring module. Among them, the data acquisition box 2 communicates with the industrial control computer 1 and is used to collect and transmit the data of each monitoring unit; the real-time online monitoring module communicates with the data acquisition box 2 and includes multiple real-time online monitoring units, which respectively monitor different parameters of the ship lock reverse arc gate and related equipment.

[0034] A data acquisition box is provided for each miter gate of the ship lock and is arranged in the corresponding hydraulic hoist room. Model description of the data acquisition box: Model example: H3C S5120-28P-SI. Technical requirements: Backplane switching rate ≥ 48 Gbps, packet forwarding rate ≥ 35.71 Mpps; Operating temperature range: -40°C to +75°C, waterproof level ≥ IP67; Adaptable sensor types: strain gauges, acceleration sensors, acoustic emission sensors, etc.; Sampling rate ≥ 10 kHz; Number of input channels: 16-channel analog input; Box body material: stainless steel 316L or aluminum alloy explosion-proof housing; Protection level: IP65 (dust and waterproof); Seismic performance: 5 Grms (5 - 500 Hz).

[0035] All data acquisition boxes are overall controlled by a set of industrial control computers (control cabinets) and are arranged in the control room of the hydraulic hoist at the upper lock head on the left bank. An optical fiber transmitter is installed inside each data acquisition box to send real-time data to the on-site control cabinet; Model examples for industrial control computers: Advantech UNO-2484G, Siemens SIMATIC IPC427E (6ES7647-0CA00-0AA5); Parameters: Temperature range: at least -20°C to +60°C (referring to the working conditions of high humidity and large temperature difference in the ship lock); Protection level: IP65 and above (dust and waterproof), vibration resistance ≥ 5 Grms; It is required to support Ethernet, RS-485 serial port (connecting data acquisition boxes), USB 3.0 (external debugging equipment); Minimum configuration: Intel i3 or equivalent ARM processor, 8 GB of memory, 256 GB SSD (meeting the real-time data caching requirements), Recommended configuration: i5 / i7 processor, 16 GB of memory, 1 TB SSD (complex spectrum analysis scenario).

[0036] Further preferably, a remote dispatching center can be configured. A server is arranged, and the real-time data of the gate can be observed simultaneously. After all the data is aggregated, it can be sent to the remote dispatching center through the optical fiber transmitter. In the dispatching center, the monitoring information of the gate can be observed simultaneously, and stress history curves, vibration history curves, etc. of any gate can also be generated, and reports at any time can also be generated for analysis needs.

[0037] The main innovation point of this embodiment lies in the layout of each measuring point and the corresponding sensor selection. Specifically, the layout of each monitoring unit and sensor is as follows:

[0038] 1. Real-time online monitoring unit 3 for the working stress of the main components of the miter gate of the ship lock.

[0039] The first stress sensor 31, the second stress sensor 32, the third stress sensor 33 and the fourth stress sensor 34 are arranged on the side of the miter gate of the ship lock to monitor the stress condition on the side of the miter gate. On the front of the miter gate of the ship lock, the strain sensors A1, A2, and A3 are located at the position slightly to the left of the middle of the miter gate 9 of the ship lock, and are arranged at intervals in the direction from the center to the shore; the strain sensors B1, B2, B3, and B4 are located at the position slightly to the right of the middle of the miter gate 9 of the ship lock, and are arranged at intervals in the direction from the center to the shore; the strain sensors C, D, and E are located at the lower side of the middle of the miter gate 9 of the ship lock, and are arranged at intervals from top to bottom. These sensors can comprehensively monitor the stress changes at different positions on the front of the miter gate.

[0040] The above stress sensors adopt fiber Bragg grating type strain sensors, with built-in temperature compensation, non-glue encapsulation, operating temperature range of -40~80°C, strain range not less than ±2500με, stainless steel housing, size not greater than 136×26×6mm, and installed by current spot welding; the sensor brand can adopt BAXSER.

[0041] Based on the above measurement point arrangement, sensors are scattered and arranged at multiple positions on the side and front of the miter gate, which can comprehensively cover the main stress-bearing areas of the miter gate. The arrangement at the positions slightly to the left, slightly to the right, and lower side of the middle takes into account the stress characteristics of different parts of the miter gate during actual operation, can accurately obtain the stress changes of each part of the miter gate, timely detect the stress abnormal areas, and provide detailed data for evaluating the structural safety of the miter gate.

[0042] II. Real-time online monitoring unit 4 for the vibration acceleration of the miter gate of the ship lock.

[0043] The first acceleration sensor 41 is arranged at the lower left side of the miter gate 9 of the ship lock, the second acceleration sensor 42 is arranged at the lower right side, the third acceleration sensor 43 is arranged at the upper left side, and the fourth acceleration sensor 44 is arranged at the upper right side. And the first acceleration sensor 41 and the third acceleration sensor 43 on the left correspond vertically, and the second acceleration sensor 42 and the fourth acceleration sensor 44 on the right correspond vertically. Through this symmetrical arrangement, the vibration acceleration conditions of different parts of the miter gate can be accurately monitored.

[0044] The above acceleration sensor uses a waterproof acceleration sensor with a safety overload of not less than 1000%, a frequency response range (23°C) of DC - 150Hz, a sensitivity deviation of not more than ±5%, a transverse sensitivity coefficient of not more than ±4%, a water pressure resistance of not less than 490 kPa, a rated capacity of the sensor of ±5g, a non-linearity of not less than ±1%RO, an allowable operating temperature range of -15°C to 65°C; for flow-induced vibration acquisition, it has an A / D sampling resolution of more than 24 bits and a synchronous sampling frequency of more than 125 kHz, with hardware anti-aliasing filtering. The sensor brand can be BAXSER.

[0045] Based on the above measurement point arrangement, adopting a symmetrical arrangement in the up, down, left, and right directions can comprehensively monitor the vibration conditions of the inverse arc gate in different directions and positions. The corresponding arrangement in the vertical direction is conducive to comparing and analyzing the vibration differences at different heights on the same side, accurately capturing the vibration characteristics of the inverse arc gate, judging whether the operating state of the inverse arc gate is stable, timely detecting abnormal vibrations, and preventing structural damage caused by excessive vibrations.

[0046] III. Real-time online monitoring unit 5 for the working state of the bearing of the ship lock inverse arc gate.

[0047] A first acoustic emission sensor 51 is arranged at the lower end of the bearing, and a second acoustic emission sensor 52 is arranged at the upper end, which can monitor the working state of the bearing in real time and capture the acoustic emission signals generated during the operation of the bearing.

[0048] The above acoustic emission sensor uses a highly sensitive composite sensor (picking up acoustic emission signals and vibration signals), with an accuracy of 16-bit AD and a sampling rate of 1 Mbps.

[0049] Based on the above measurement point arrangement, early damage and faults inside the bearing, such as cracks and wear, can be detected in a timely manner, providing a basis for the maintenance and replacement of the bearing, and avoiding accidents during the operation of the ship lock caused by bearing failures.

[0050] IV. Real-time online monitoring unit 6 for the noise during the operation of the working valve well.

[0051] A piezoelectric vibration sensor (not shown in the figure) is installed on the solenoid valve body to directly monitor the mechanical vibration signals, and the type of abnormal noise, such as looseness and friction, is identified by analyzing the spectral characteristics.

[0052] Based on the above measurement point arrangement, external interference is avoided, and the accuracy of signal monitoring is improved. According to the detection results, the type of abnormal noise can be accurately identified by analyzing the spectral characteristics, and problems such as looseness and friction during the operation of the valve well can be detected in a timely manner, ensuring the normal operation of the valve well.

[0053] Sensor parameters: Displacement range: 2000μm (peak-to-peak); Temperature range: -30°C to 120°C; Protection rating: IP65 / IP67 (dust and water protection); Shock resistance: 100g (instantaneous shock tolerance). Sensor selection examples: ZHUI series, PAS701.

[0054] V. Real-time online monitoring unit 7 for the working stress of the hydraulic hoist frame and real-time online monitoring unit 8 for the vibration acceleration of the hydraulic hoist frame.

[0055] Strain sensors 71 are arranged on the flange plates of the left support structure and the flange plates of the right support structure to monitor the working stress of the hydraulic hoist frame. Acceleration sensors 81 are arranged on the flange plates of the left support structure and the flange plates of the right support structure to monitor the vibration acceleration of the hydraulic hoist frame.

[0056] The strain sensors adopt fiber Bragg grating strain sensors. The above-mentioned strain sensors and acceleration sensors are of the same brand and model as the aforementioned strain sensors and acceleration sensors, and will not be elaborated here.

[0057] Based on the above measurement point arrangements, stress concentration and abnormal vibration of the frame can be detected in a timely manner, the structural safety of the frame can be evaluated, and references can be provided for the maintenance and adjustment of the hydraulic hoist.

[0058] All sensors are installed on the side of the grillage, that is, on the "back water surface of the rear flange" and on the "back water surface of the back tie rod"; all sensors are protected by special stainless steel protective covers to prevent damage caused by debris collision or accidental trampling; the cable trays of the sensors are arranged along the grillage, routed to the top of the gate through the manhole ladder inside the gate, and then enter the hydraulic hoist room through the preset buried pipes.

[0059] The above embodiments only illustrate the principles and effects of the present invention by way of example, and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A real-time online monitoring system for the reverse arc gate of a ship lock, characterized in that, It includes an industrial control computer (1), a data acquisition box (2) communicating with the industrial control computer (1), and a real-time online monitoring module communicating with the data acquisition box (2); the real-time online monitoring module includes a working stress real-time online monitoring unit (3) of the main components of the lock reverse arc gate, a vibration acceleration real-time online monitoring unit (4) of the lock reverse arc gate, a working condition real-time online monitoring unit (5) of the lock reverse arc gate bearing, a real-time online monitoring unit (6) of the sound during the operation of the working valve well, a working stress real-time online monitoring unit (7) of the hydraulic hoist rack, and a vibration acceleration real-time online monitoring unit (8) of the hydraulic hoist rack.

2. The real-time online monitoring system for the reverse arc gate of a ship lock according to claim 1, characterized in that: The working stress real-time online monitoring unit (3) of the main components of the lock reverse arc gate includes a first stress sensor (31), a second stress sensor (32), a third stress sensor (33), and a fourth stress sensor (34) arranged on the side of the lock reverse arc gate, a strain sensor A1 (35), a strain sensor A2 (36), a strain sensor A3 (37), a strain sensor B1 (38), a strain sensor B2 (39), a strain sensor B3 (310), and a strain sensor B4 (311) arranged on the front of the lock reverse arc gate, a strain sensor C (312), a strain sensor D (313), and a strain sensor E (314).

3. The real-time online monitoring system for the reverse arc gate of a ship lock according to claim 2, characterized in that: The strain sensor A1 (35), the strain sensor A2 (36), and the strain sensor A3 (37) are located at a position slightly to the left of the middle of the lock reverse arc gate (9), and are arranged at intervals in the direction from the center to the shore on the lock reverse arc gate (9); the strain sensor B1 (38), the strain sensor B2 (39), the strain sensor B3 (310), and the strain sensor B4 (311) are located at a position slightly to the right of the middle of the lock reverse arc gate (9), and are arranged at intervals in the direction from the center to the shore on the lock reverse arc gate (9); the strain sensor C (312), the strain sensor D (313), and the strain sensor E (314) are located at the lower side of the middle of the lock reverse arc gate (9), and are arranged at intervals from top to bottom.

4. The real-time online monitoring system for the miter gate of a ship lock according to claim 3, characterized in that: The vibration acceleration real-time online monitoring unit (4) of the lock reverse arc gate includes a first acceleration sensor (41) arranged on the lower left side of the lock reverse arc gate (9) and a second acceleration sensor (42) arranged on the lower right side, a third acceleration sensor (43) arranged on the upper left side of the lock reverse arc gate (9) and a fourth acceleration sensor (44) arranged on the upper right side, and the first acceleration sensor (41) and the third acceleration sensor (43) on the left side correspond in the vertical direction, and the second acceleration sensor (42) and the fourth acceleration sensor (44) on the right side correspond in the vertical direction.

5. The real-time online monitoring system for the miter gate of a ship lock according to claim 4, characterized in that: The working condition real-time online monitoring unit (5) of the lock reverse arc gate bearing includes a first acoustic emission sensor (51) arranged at the lower end of the bearing and a second acoustic emission sensor (52) arranged at the upper end of the bearing.

6. The real-time online monitoring system for the miter gate of a ship lock according to claim 5, characterized in that: The real-time online monitoring unit (6) of the sound during the operation of the working valve well includes a piezoelectric vibration sensor installed on the solenoid valve body.

7. The real-time online monitoring system for the miter gate of a ship lock according to claim 6, characterized in that: The real-time online monitoring unit (7) for the working stress of the hydraulic hoist frame includes strain sensors (71) arranged on the flange plates of the left support structure and the right support structure.

8. The real-time online monitoring system for the miter gate of a ship lock according to claim 7, characterized in that: The real-time online monitoring unit (8) for the vibration acceleration of the hydraulic hoist frame includes acceleration sensors (81) arranged on the flange plates of the left support structure and the right support structure.

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