Half-leaf and double-leaf miter gate online monitoring system and implementation method thereof

Abstract

The invention belongs to the technical field of hydraulic engineering, and provides a half-leaf and double-leaf miter gate online monitoring system and an implementation method thereof. The sensor unit comprises a stress monitoring unit, a flow-induced vibration monitoring unit, an operation attitude monitoring unit, a bearing monitoring unit, a hydraulic hoist stress monitoring unit, a hydraulic hoist vibration monitoring unit and a power pump station motor monitoring unit, the monitoring points of all the monitoring units are arranged perfectly, the monitoring effect is guaranteed, and meanwhile the monitoring accuracy is improved. On the basis of the arrangement of the measuring points, the stress monitoring unit, the flow-induced vibration monitoring unit, the running posture monitoring unit and the bearing monitoring unit achieve wiring of sensor cables on the half-leaf double-leaf miter gate through a wiring structure, wiring of the sensor cables is scientific and reasonable, installation of sensors is facilitated, and the monitoring accuracy of the miter gate is improved. And in the subsequent maintenance, the sensor and the cable thereof can be quickly positioned, so that the maintenance and overhaul are convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy engineering, and in particular relates to an online monitoring system for a half-leaf double-leaf miter door and a realization method thereof. Background Art

[0002] The double-leaf miter gate includes two door leaves on the left and right, which rotate around the vertical door axis in the side wall of the waterway respectively. When the waterway is closed, a gate in the shape of a "person" is formed when viewed from above. When the miter gate is working, the two door leaves form a three-hinged arch to withstand water pressure; when the waterway is open, the two door leaves are located in the door niche of the side wall, do not withstand water pressure, and are in a non-working state. For the monitoring of double-leaf miter gates, the existing monitoring scheme mainly uses stress and strain sensors, three-axis two-way vibration sensors, attitude sensors and other sensors to realize stress monitoring, flow-induced vibration monitoring, operation attitude monitoring and other monitoring contents of the double-leaf miter gates. For example: my country's authorized patent CN202021685142.3 discloses a real-time online monitoring system for the health status of a ship lock miter gate and hoist. The inventor of the present invention discovered that although the monitoring of double-leaf miter doors by various manufacturers includes stress monitoring, flow-induced vibration monitoring, operating posture monitoring and other monitoring contents, the specific measurement point arrangements are not the same. Moreover, since these sensors are basically wired sensors and are all installed on the gates, the measurement point arrangement of the prior art will cause the sensor cable wiring on the gates to be messy, which is not only inconvenient for the installation of the sensors, but also not conducive to the inspection and repair of the sensors and their cables in subsequent maintenance. On the other hand, the measurement point arrangement of the prior art for double-leaf miter doors is not perfect, which can easily affect the actual monitoring effect. Summary of the invention

[0003] The purpose of the present invention is to provide an online monitoring system for a half-leaf double-leaf miter door and an implementation method thereof, so as to solve the technical problems existing in the prior art.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A half-leaf double-leaf miter door online monitoring system comprises a sensor unit, a data acquisition unit for receiving data collected by the sensor unit, and an edge computing unit communicating with the data acquisition unit; characterized in that the sensor unit comprises a stress monitoring unit, a flow-induced vibration monitoring unit, an operation posture monitoring unit, a bearing monitoring unit, a hydraulic hoist stress monitoring unit, a hydraulic hoist vibration monitoring unit and a power pump station motor monitoring unit, and the stress monitoring unit, the flow-induced vibration monitoring unit, the operation posture monitoring unit and the bearing monitoring unit realize the wiring of sensor cables on the half-leaf double-leaf miter door through a wiring structure.

[0006] In one embodiment, the stress monitoring unit includes a first surface strain gauge arranged in the axial direction of the main back tie rod of the half-leaf double-leaf miter door, a second surface strain gauge arranged in the axial direction of the secondary back tie rod of the half-leaf double-leaf miter door, and a third surface strain gauge arranged in the mid-span area of ​​the rear flange of the second main beam from bottom to top of the half-leaf double-leaf miter door.

[0007] In one embodiment, the flow-induced vibration monitoring unit includes a first three-axis acceleration sensor arranged on the upper part of the web of the connection between the bottom hinge and the bottom beam of the half-leaf double-leaf miter door, a second three-axis acceleration sensor arranged on the upper part of the web of the connection between the bottom beam and the miter column of the half-leaf double-leaf miter door, and a third three-axis acceleration sensor arranged in the connection area between the top beam and the miter column of the half-leaf double-leaf miter door.

[0008] In one embodiment, the operation posture monitoring unit includes a dual-axis inclinometer arranged on the downstream side of the miter column at the top of the half-leaf double-leaf miter gate.

[0009] In one embodiment, the bearing monitoring unit includes a first acoustic emission sensor arranged on the upper part of the web of the connection between the bottom hinge and the bottom beam of the half-leaf double-leaf miter gate, and a second acoustic emission sensor arranged on the top of the top pivot hinge of the half-leaf double-leaf miter gate.

[0010] In one embodiment, the hydraulic hoist stress monitoring unit includes a fourth surface strain gauge arranged on the flange plate of the left supporting structure of the hydraulic hoist frame, and a fifth surface strain gauge arranged on the flange plate of the right supporting structure of the hydraulic hoist frame.

[0011] In one embodiment, the hydraulic hoist vibration monitoring unit includes a fourth three-axis acceleration sensor arranged on the flange plate of the left supporting structure of the hydraulic hoist frame, and a fifth three-axis acceleration sensor arranged on the flange plate of the right supporting structure of the hydraulic hoist frame.

[0012] In one embodiment, the power pump station motor monitoring unit includes a first unidirectional acceleration sensor arranged on the vertical axis of the free end of the motor, and a second unidirectional acceleration sensor arranged on the horizontal axis of the free end of the motor.

[0013] In one embodiment, the wiring structure includes a first sensor cable wiring portion located at the bottom of a half-leaf double-leaf miter door, a first Z-shaped sensor cable wiring portion arranged vertically and connected to the first sensor cable wiring portion at a lower end, a second sensor cable wiring portion located on the right side of the first Z-shaped sensor cable wiring portion and connected to its upper end, a second Z-shaped sensor cable wiring portion arranged vertically and connected to the second sensor cable wiring portion at a lower end, a third sensor cable wiring portion located on the right side of the second Z-shaped sensor cable wiring portion and connected to its upper end, and a sensor cable lead-out portion located on the left side of the upper end of the half-leaf double-leaf miter door and connected to the third sensor cable wiring portion and the second Z-shaped sensor cable wiring portion.

[0014] In order to achieve the above object, the present invention also provides a method for implementing an online monitoring system for a half-leaf double-leaf miter door, comprising:

[0015] (1) wiring the cables of the first acoustic emission sensor and the second three-axis acceleration sensor sequentially through the first sensor cable wiring portion, the first Z-shaped sensor cable wiring portion, the second Z-shaped sensor cable wiring portion, and the sensor cable lead-out portion;

[0016] (2) wiring the cables of the first three-axis acceleration sensor, the first surface strain gauge, the second surface strain gauge, and the third surface strain gauge sequentially through the second sensor cable wiring portion, the second Z-type sensor cable wiring portion, and the sensor cable lead-out portion;

[0017] (3) routing the cable of the dual-axis inclinometer through the third sensor cable routing portion and the sensor cable lead-out portion in sequence;

[0018] (4) The cables of the third three-dimensional acceleration sensor and the second acoustic emission sensor are routed through the sensor cable lead-out portion.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The sensor units in the present invention include a stress monitoring unit, a flow-induced vibration monitoring unit, an operation posture monitoring unit, a bearing monitoring unit, a hydraulic gate hoist stress monitoring unit, a hydraulic gate hoist vibration monitoring unit and a power pump station motor monitoring unit. The measuring points of each monitoring unit are perfectly arranged to ensure the monitoring effect. At the same time, based on the above-mentioned measuring point arrangement, the stress monitoring unit, the flow-induced vibration monitoring unit, the operation posture monitoring unit and the bearing monitoring unit in the present invention realize the wiring of the sensor cables on the half-leaf double-leaf miter door through a wiring structure. The wiring of the sensor cables is scientific and reasonable, which not only facilitates the installation of the sensor, but also in the subsequent maintenance, the sensor and its cable can be quickly located, which is convenient for maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a diagram showing the arrangement of sensor measuring points for the half-leaf double-leaf miter gate of the present invention.

[0022] Figure 2 Arrangement of sensor measuring points of the hydraulic gate hoist in the present invention Figure 1 .

[0023] Figure 3 Arrangement of sensor measuring points of the hydraulic gate hoist in the present invention Figure 2 .

[0024] Among them, the names corresponding to the figure marks are as follows: 1-first surface strain gauge, 2-second surface strain gauge, 3-third surface strain gauge, 4-first three-axis acceleration sensor, 5-second three-axis acceleration sensor, 6-third three-axis acceleration sensor, 7-dual-axis inclinometer, 8-first acoustic emission sensor, 9-second acoustic emission sensor, 10-fourth surface strain gauge, 11-fifth surface strain gauge, 12-fourth three-axis acceleration sensor, 13-fifth three-axis acceleration sensor, 14-first sensor cable wiring part, 15-first Z-type sensor cable wiring part, 16-second sensor cable wiring part, 17-second Z-type sensor cable wiring part, 18-third sensor cable wiring part, 19-sensor cable lead-out part. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to have a clearer understanding and knowledge of the present invention, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described below are only used to explain the present invention, and are convenient for understanding. The technical solutions provided by the present invention 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 invention.

[0026] Example

[0027] like Figures 1 to 3 As shown, this embodiment provides an online monitoring system for a half-leaf double-leaf miter door. The half-leaf double-leaf miter door refers to one of the double-leaf miter doors. Since they have the same structure, the measurement point arrangement of the other leaf is also the same. The double-leaf miter door is arranged at the upper and lower gate heads as a working gate, and the arrangement of its measurement points at the upper and lower gate heads is also the same. Therefore, the monitoring system is described using a half-leaf double-leaf miter door.

[0028] In this embodiment, the monitoring system includes a sensor unit, a data acquisition unit and an edge computing unit; wherein the sensor unit mainly collects relevant data of the metal components of the half-leaf double-leaf miter door, and the data acquisition unit is used to collect the original data of the sensor and transmit it to the edge computing unit. It is composed of a data acquisition card, a sensor power supply and other equipment, and is electrically connected to the sensor by a cable. In this embodiment, the data acquisition unit adopts an existing mature product, and the data acquisition unit is installed in the opening and closing machine room, and its protection level should not be lower than IP54; the edge computing unit adopts an edge computing high-performance PC, including an on-site display unit, print output, network server, network security device and other equipment. The edge computing unit is installed in the opening and closing machine room, and its protection level is not lower than IP54. It is an existing mature product and can adopt an industrial all-in-one machine, model GFACE-104.

[0029] The sensor unit is the core improvement, which mainly includes three aspects: (1) sensor selection; (2) measurement point layout based on sensor selection; (3) sensor cable wiring based on measurement point layout.

[0030] The first is the selection of sensors. In this embodiment, the sensor units include stress monitoring units, flow-induced vibration monitoring units, operating posture monitoring units, bearing monitoring units, hydraulic gate hoist stress monitoring units, hydraulic gate hoist vibration monitoring units and power pump station motor monitoring units. Based on the above monitoring units, the sensors used include surface strain gauges, three-axis acceleration sensors, dual-axis inclinometers, acoustic emission sensors and unidirectional acceleration sensors.

[0031] The second is the arrangement of the sensor's measuring points, which is significantly different from the prior art and is not a technical solution that can be easily thought of by those skilled in the art. The details are as follows:

[0032] 1. The stress monitoring unit includes a first surface strain gauge arranged on the axial direction of the main back tie rod of the half-leaf double-leaf miter door, a second surface strain gauge arranged on the axial direction of the secondary back tie rod of the half-leaf double-leaf miter door, and a third surface strain gauge arranged in the mid-span area of ​​the rear flange of the second main beam from bottom to top of the half-leaf double-leaf miter door; through the arrangement of the surface strain gauges, the structural strength of the gate can be monitored.

[0033] 2. The flow-induced vibration monitoring unit includes a first three-axis acceleration sensor arranged on the upper part of the web of the connection between the bottom hinge and the bottom beam of the half-leaf double-leaf miter door, a second three-axis acceleration sensor arranged on the upper part of the web of the connection between the bottom beam and the miter column of the half-leaf double-leaf miter door, and a third three-axis acceleration sensor arranged in the connection area between the top beam and the miter column of the half-leaf double-leaf miter door; through the arrangement of the three-axis acceleration sensors, the safety of the flow-induced vibration of the gate during the opening and closing process can be monitored.

[0034] 3. The operation attitude monitoring unit includes a dual-axis inclinometer arranged on the downstream side of the miter column at the top of the half-leaf double-leaf miter gate; the dual-axis inclinometer is used to monitor the operation attitude of the gate and grasp the gate operation status in real time.

[0035] 4. The bearing monitoring unit includes a first acoustic emission sensor arranged on the upper part of the web of the connection between the bottom pivot and the bottom beam of the half-leaf double-leaf miter gate, and a second acoustic emission sensor arranged on the top of the top pivot hinge of the half-leaf double-leaf miter gate. Through the arrangement of the acoustic emission sensors, the operating status of the top pivot and bottom pivot bearings of the radial gate can be grasped in real time.

[0036] 5. The stress monitoring unit of the hydraulic gate hoist includes a fourth surface strain gauge arranged on the flange plate of the left supporting structure of the hydraulic gate hoist frame, and a fifth surface strain gauge arranged on the flange plate of the right supporting structure of the hydraulic gate hoist frame; surface strain gauges are arranged on the double-leaf miter door gate hoist frame to monitor the structural strength of the frame.

[0037] 6. The vibration monitoring unit of the hydraulic gate hoist includes a fourth three-axis acceleration sensor arranged on the flange plate of the left supporting structure of the hydraulic gate hoist frame, and a fifth three-axis acceleration sensor arranged on the flange plate of the right supporting structure of the hydraulic gate hoist frame; a three-axis acceleration sensor is arranged on the double-leaf miter door gate hoist frame to realize the safety monitoring of the frame vibration during the opening and closing process.

[0038] 7. The motor monitoring unit of the power pump station includes a first unidirectional acceleration sensor arranged on the vertical axis of the free end of the motor, and a second unidirectional acceleration sensor arranged on the horizontal axis of the free end of the motor; in the prior art, the monitoring of the motor group of the power pump station is ignored. This embodiment incorporates it into the overall monitoring of the half-leaf double-leaf miter door. By arranging the unidirectional acceleration sensor, the vibration of the motor is monitored, and the motor operation status is grasped in real time, which is one of the monitoring targets of the operation of the double-leaf miter door.

[0039] In this embodiment, the stress monitoring unit, the flow-induced vibration monitoring unit, the operation posture monitoring unit and the bearing monitoring unit are all installed on the half-leaf double-leaf miter door. The existing measurement point arrangement is not only imperfect, but also the design of the measurement point arrangement is unreasonable, and regular sensor cable wiring cannot be achieved. Therefore, this embodiment improves the measurement point arrangement of the sensor. At the same time, based on the improved measurement point arrangement, the wiring structure is used to realize the wiring of the sensor cables on the half-leaf double-leaf miter door, thereby improving the regularity of the sensor cable wiring.

[0040] In this embodiment, the wiring structure includes a first sensor cable wiring portion located at the bottom of the half-leaf double-leaf miter door, a first Z-shaped sensor cable wiring portion arranged vertically and connected to the first sensor cable wiring portion at the lower end, a second sensor cable wiring portion located on the right side of the first Z-shaped sensor cable wiring portion and connected to its upper end, a second Z-shaped sensor cable wiring portion arranged vertically and connected to the second sensor cable wiring portion at the lower end, a third sensor cable wiring portion located on the right side of the second Z-shaped sensor cable wiring portion and connected to its upper end, and a sensor cable lead-out portion located on the left side of the upper end of the half-leaf double-leaf miter door and connected to the third sensor cable wiring portion and the second Z-shaped sensor cable wiring portion.

[0041] According to the above wiring structure, the first acoustic emission sensor and the second three-axis acceleration sensor are respectively located at the left and right ends of the first sensor cable wiring part, and the cables of the first acoustic emission sensor and the second three-axis acceleration sensor are wired in sequence through the first sensor cable wiring part, the first Z-type sensor cable wiring part, the second Z-type sensor cable wiring part and the sensor cable lead-out part.

[0042] The first three-axis acceleration sensor is located at the right end of the second sensor cable wiring portion, the first surface strain gauge and the second surface strain gauge are located at the upper end of the second sensor cable wiring portion and close to the middle of the second sensor cable wiring portion, and the cables of the first three-axis acceleration sensor, the first surface strain gauge, the second surface strain gauge and the third surface strain gauge are wired in sequence through the second sensor cable wiring portion, the second Z-type sensor cable wiring portion and the sensor cable lead-out portion.

[0043] The dual-axis inclinometer is located at the right end of the third sensor cable wiring portion, and the cable of the dual-axis inclinometer is wired sequentially through the third sensor cable wiring portion and the sensor cable lead-out portion.

[0044] The second acoustic emission sensor is located in the middle of the sensor cable lead-out portion, and cables of the second acoustic emission sensor and the third three-directional acceleration sensor are wired through the sensor cable lead-out portion.

[0045] Through the above arrangement, orderly wiring of the sensor cables is achieved. At the same time, the cables of the sensors installed on the half-leaf double-leaf miter door are uniformly led out from the sensor cable lead-out part, which is convenient for centralized arrangement and management.

[0046] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An online monitoring system for a half-leaf double-leaf miter door, comprising a sensor unit, a data acquisition unit for receiving data collected by the sensor unit, and an edge computing unit communicating with the data acquisition unit; characterized in that: The sensor unit includes a stress monitoring unit, a flow-induced vibration monitoring unit, an operation posture monitoring unit, a bearing monitoring unit, a hydraulic gate hoist stress monitoring unit, a hydraulic gate hoist vibration monitoring unit and a power pump station motor monitoring unit, and the stress monitoring unit, the flow-induced vibration monitoring unit, the operation posture monitoring unit and the bearing monitoring unit realize the wiring of the sensor cables on the half-leaf double-leaf miter door through a wiring structure.

2. The half-leaf double-leaf miter door online monitoring system according to claim 1 is characterized in that: The stress monitoring unit comprises a first surface strain gauge (1) arranged in the axial direction of the main back tie rod of the half-leaf double-leaf miter door, a second surface strain gauge (2) arranged in the axial direction of the secondary back tie rod of the half-leaf double-leaf miter door, and a third surface strain gauge (3) arranged in the mid-span area of ​​the rear flange of the second main beam from bottom to top of the half-leaf double-leaf miter door.

3. The half-leaf double-leaf miter door online monitoring system according to claim 2 is characterized in that: The flow-induced vibration monitoring unit comprises a first three-dimensional acceleration sensor (4) arranged on the upper part of the web of the connection between the bottom hinge and the bottom beam of the half-leaf double-leaf miter door, a second three-dimensional acceleration sensor (5) arranged on the upper part of the web of the connection between the bottom beam and the miter column of the half-leaf double-leaf miter door, and a third three-dimensional acceleration sensor (6) arranged in the connection area between the top beam and the miter column of the half-leaf double-leaf miter door.

4. The half-leaf double-leaf miter door online monitoring system according to claim 3 is characterized in that: The operation posture monitoring unit comprises a dual-axis inclinometer (7) arranged on the downstream side of the miter column at the top of the half-leaf double-leaf miter gate.

5. The half-leaf double-leaf miter door online monitoring system according to claim 4 is characterized in that: The bearing monitoring unit comprises a first acoustic emission sensor (8) arranged on the upper part of the web of the connection between the bottom hinge and the bottom beam of the half-leaf double-leaf miter gate, and a second acoustic emission sensor (9) arranged on the top of the top pivot hinge of the half-leaf double-leaf miter gate.

6. The half-leaf double-leaf miter door online monitoring system according to claim 5 is characterized in that: The hydraulic hoist stress monitoring unit comprises a fourth surface strain gauge (10) arranged on the flange plate of the left supporting structure of the hydraulic hoist frame, and a fifth surface strain gauge (11) arranged on the flange plate of the right supporting structure of the hydraulic hoist frame.

7. The half-leaf double-leaf miter door online monitoring system according to claim 6 is characterized in that: The hydraulic hoist vibration monitoring unit comprises a fourth three-dimensional acceleration sensor (12) arranged on the flange plate of the left supporting structure of the hydraulic hoist frame, and a fifth three-dimensional acceleration sensor (13) arranged on the flange plate of the right supporting structure of the hydraulic hoist frame.

8. The half-leaf double-leaf miter door online monitoring system according to claim 7 is characterized in that: The power pump station motor monitoring unit comprises a first unidirectional acceleration sensor arranged on the vertical axis of the free end of the motor, and a second unidirectional acceleration sensor arranged on the horizontal axis of the free end of the motor.

9. The half-leaf double-leaf miter door online monitoring system according to claim 8 is characterized in that: The wiring structure comprises a first sensor cable wiring portion (14) located at the bottom of the half-leaf double-leaf miter door, a first Z-shaped sensor cable wiring portion (15) arranged vertically and connected to the first sensor cable wiring portion (14) at its lower end, a second sensor cable wiring portion (16) located on the right side of the first Z-shaped sensor cable wiring portion (15) and connected to its upper end, a second Z-shaped sensor cable wiring portion (17) arranged vertically and connected to the second sensor cable wiring portion (16) at its lower end, a third sensor cable wiring portion (18) located on the right side of the second Z-shaped sensor cable wiring portion (17) and connected to its upper end, and a sensor cable lead-out portion (19) located on the left side of the upper end of the half-leaf double-leaf miter door and connected to the third sensor cable wiring portion (18) and the second Z-shaped sensor cable wiring portion (17).

10. The method for realizing the online monitoring system of the half-leaf double-leaf miter door according to claim 9 is characterized in that: include: (1) wiring the cables of the first acoustic emission sensor and the second three-axis acceleration sensor sequentially through the first sensor cable wiring portion, the first Z-shaped sensor cable wiring portion, the second Z-shaped sensor cable wiring portion, and the sensor cable lead-out portion; (2) wiring the cables of the first three-axis acceleration sensor, the first surface strain gauge, the second surface strain gauge, and the third surface strain gauge sequentially through the second sensor cable wiring portion, the second Z-type sensor cable wiring portion, and the sensor cable lead-out portion; (3) routing the cable of the dual-axis inclinometer through the third sensor cable routing portion and the sensor cable lead-out portion in sequence; (4) The cables of the third three-dimensional acceleration sensor and the second acoustic emission sensor are routed through the sensor cable lead-out portion.

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