Temperature monitoring system for trench cable

Abstract

The utility model provides a temperature monitoring system for a trench cable, which relates to the technical field of trench cable monitoring, and comprises a cable rack, a trench cable, a connecting part, a temperature sensor and a spectrum monitor, the cable rack is installed on the side wall of a trench, the trench cable is placed on the cable rack, the trench cable is provided with the connecting part, and the temperature sensor is connected with the spectrum monitor. A temperature sensor is installed at the connecting part, a spectrum monitor is installed on the side wall of the trench, and the trench cable is located in a monitoring area of the spectrum monitor. Comprehensive monitoring is carried out through the spectrum monitor, when the spectrum monitor gives an alarm, specific temperature abnormal points can be checked out by further analyzing numerical values fed back by the temperature sensors at the connecting parts, monitoring is comprehensive, positioning is accurate, and the problem of missing detection is not prone to occurring.

Description

Technical Field

[0001] This utility model relates to the field of trench cable monitoring technology, and more specifically, to a temperature monitoring system for trench cables. Background Technology

[0002] Cable trenches present a complex environment and involve confined space operations. There are many unknown factors inside the cable trenches, such as hazardous gases, tree branches, or other debris. There are certain safety risks for inspection personnel when they go down into the trenches to inspect cables.

[0003] The long intervals between inspections by patrol personnel make it difficult to detect and resolve issues such as rainwater backflow and water accumulation caused by external factors in a timely manner. In addition, regular manual inspections of cables in cable trenches are greatly affected by human factors, making it impossible to monitor the working conditions inside the cable trench and the operating status of the lines in real time. It is also impossible to detect whether the cables are overheating in real time, making it difficult to detect potential overheating hazards and leading to missed inspections. Utility Model Content

[0004] The problem this invention aims to solve is that manual periodic inspections cannot detect the working conditions inside the cable trench and the operating status of the line in real time, nor can they detect whether the cable is overheating in a local area, which easily leads to missed inspections.

[0005] To address the aforementioned problems, this utility model provides a temperature monitoring system for trench cables, comprising a cable rack, a trench cable, a connecting part, a temperature sensor, and a spectral monitor. The cable rack is installed on the side wall of the trench, the trench cable is placed on the cable rack, the trench cable is provided with a connecting part, the temperature sensor is installed at the connecting part, the spectral monitor is installed on the side wall of the trench, and the trench cable is within the monitoring area of ​​the spectral monitor.

[0006] Optionally, the temperature monitoring system for the trench cable further includes a camera, which is installed on the side wall of the trench, and the number on the trench cable is within the camera's field of view.

[0007] Optionally, a smoke sensor is installed on the camera.

[0008] Optionally, the temperature monitoring system for the trench cable also includes a scale line, which is engraved on the side wall of the trench and is located within the shooting area of ​​the camera.

[0009] Optionally, the camera is equipped with a light.

[0010] Optionally, a plurality of cameras are installed in the trench, and the plurality of cameras are arranged on the inner walls of both sides of the trench.

[0011] Optionally, the spectral monitor is mounted on the sidewall of the trench perpendicular to the length of the cable.

[0012] Optionally, the temperature monitoring system for the trench cable further includes an adjustment component, which is installed on the side wall of the trench, and the camera is installed on the adjustment component. The adjustment component is used to adjust the shooting angle of the camera.

[0013] Optionally, the adjustment assembly includes a drive member and a connecting rod. The drive member is mounted on the side wall of the trench, and the connecting rod is connected to the output shaft of the drive member. The camera is rotatably connected to the side wall of the trench, and the end of the connecting rod away from the drive member is connected to the camera. The connecting rod is used to drive the camera to rotate.

[0014] Optionally, the adjustment assembly further includes a lifting component, which is mounted on the connecting rod, and the telescopic end of the lifting component is connected to the end of the camera away from the side wall of the trench.

[0015] The beneficial effects of the temperature monitoring system for underground cables of this utility model are:

[0016] Spectral monitors can comprehensively monitor temperature changes over a large area of ​​the irradiated zone. By setting alarms, they can trigger responses and take preventative measures when the monitored temperature reaches the alarm threshold, thus preventing accidents. Connection points are typically located at the joints or damaged sections of underground cables. These connections can be intermediate joints or reconnections. Temperature sensors are installed at these connection points to monitor the temperature at the cable connection location. Temperature sensors effectively monitor the temperature at vulnerable points in the underground cables, allowing for targeted measures to ensure safe and stable cable operation. Placing underground cables on cable racks keeps them elevated above the ground, reducing water accumulation and moisture damage, facilitating heat dissipation, and preventing water damage to the temperature sensors. Comprehensive monitoring with a spectral monitor allows for real-time detection of the internal conditions of the cable trench and the operating status of the line. When the spectral monitor issues an alarm, further analysis of the temperature sensor readings at each connection point can pinpoint specific temperature anomalies, enabling comprehensive and accurate monitoring of localized cable overheating, minimizing the risk of missed detections. Attached Figure Description

[0017] Figure 1 A right-side view of a temperature monitoring system for trench cables provided in an embodiment of this utility model;

[0018] Figure 2 A front view schematic diagram of a temperature monitoring system for trench cables provided in an embodiment of this utility model;

[0019] Figure 3A partial top view of a temperature monitoring system for trench cables provided in this embodiment of the present invention;

[0020] Figure 4 for Figure 1 Enlarged diagram of point A in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Trench; 2. Cable rack; 3. Trench cable; 4. Camera; 5. Base; 6. Smoke sensor; 7. Lifting component; 8. Drive component; 9. Linkage rod; 10. Connecting part; 11. Temperature sensor; 12. Spectrum monitor; 13. Scale line. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0024] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0025] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0026] When the trench cable 3 is a smelting cable, it is necessary to monitor the temperature of the trench cable 3. When the machine connected to the trench cable 3 is not involved in smelting, the temperature of the trench cable 3 is the ambient temperature of the trench. When it is involved in smelting, the temperature of the trench cable 3 will change with the load. Therefore, when monitoring the temperature, it is necessary to look up the temperature curve corresponding to the load of the trench cable 3 to determine the normal cable temperature corresponding to different loads, and then use the normal cable temperature as the temperature threshold for temperature monitoring.

[0027] To address the problems existing in the aforementioned related technologies, this embodiment provides a temperature monitoring system for trench cables.

[0028] like Figure 1 and Figure 2 As shown in the figure, a temperature monitoring system for trench cables provided by this utility model includes a cable rack 2, a trench cable 3, a connecting part 10, a temperature sensor 11, and a spectrum monitor 12. The cable rack 2 is installed on the side wall of the trench 1, the trench cable 3 is placed on the cable rack 2, the trench cable 3 is provided with a connecting part 10, the temperature sensor 11 is installed at the connecting part 10, the spectrum monitor 12 is installed on the side wall of the trench 1, and the trench cable 3 is within the monitoring area of ​​the spectrum monitor 12.

[0029] Specifically, such as Figure 1 and Figure 3 As shown, cable racks 2 can be installed on both sides of trench 1. The cable racks 2 on both sides of trench 1 can be installed symmetrically or staggered. Multiple trench cables 3 can be placed on each cable rack 2 on each side of trench 1, and each trench cable 3 is marked with a number. Additionally, the spectral monitor 12 can be installed on the side wall of trench 1 perpendicular to the cable length direction, i.e., installed as shown in the diagram. Figure 2 The two ends of the trench 1 along its length are shown, which makes it easier for the spectral monitor 12 to monitor along the length of the trench 1, increasing the monitoring area of ​​the trench cable 3 and making it easier to monitor the various positions of the trench cable 3.

[0030] In this optional embodiment, the spectral monitor 12 can monitor temperature changes over a large area of ​​the irradiated region, providing comprehensive monitoring. By setting alarms, when the temperature reaches the alarm value, an alarm is triggered and measures are taken to prevent accidents. Connecting parts 10 are provided at the connection points or damaged sections of the trench cable 3. These connecting parts 10 can be intermediate joints or reconnection sections. Temperature sensors 11 are installed at the locations of the connecting parts 10 to monitor the temperature at the cable connection points. Intermediate joints or reconnection points in fault conditions are prone to moisture absorption and overheating under large load changes. Temperature sensors 11 can effectively monitor the temperature at weak points of the trench cable 3, allowing for measures to be taken to ensure the safe and stable operation of the cable. The trench cable 3 is placed on the cable rack 2, making it suspended above the ground, reducing water erosion and moisture absorption, facilitating heat dissipation, and preventing the temperature sensor 11 from being damaged by water immersion. Comprehensive monitoring is performed by the spectral monitor 12, which can detect the working conditions inside the cable trench and the operating status of the line in real time. When the spectral monitor 12 issues an alarm, the specific temperature anomaly points can be identified by further analyzing the values ​​fed back by the temperature sensors 11 at each connection 10. This enables the monitoring of local overheating of the cable, providing comprehensive monitoring, accurate positioning, and reducing the likelihood of missed detections.

[0031] Optionally, such as Figure 1 As shown, the temperature monitoring system for the trench cable also includes a camera 4, which is installed on the side wall of the trench 1, and the number of the trench cable 3 is within the field of view of the camera 4.

[0032] Specifically, camera 4 is installed near the location of the cable code on the trench cable 3, allowing multiple trench cables 3 to be marked with their codes and captured by camera 4. Therefore, after temperature anomalies are identified by temperature sensor 11, camera 4 can further determine the number of the entire trench cable 3. Multiple cameras 4 are installed inside the trench 1, positioned on the inner walls of both sides of the trench 1, facilitating comprehensive monitoring of the long trench cables 3.

[0033] In this optional embodiment, such as Figure 4 As shown, a smoke sensor 6 is installed on the camera 4. When the underground cable 3 overheats and catches fire, producing smoke, the smoke sensor 6 will trigger a smoke alarm. The camera 4 will then view the specific location of the fire, corresponding to the underground cable 3, thereby quickly locating the fire location and the burning cable, and taking appropriate measures.

[0034] Optionally, such as Figure 2 As shown, the temperature monitoring system for the trench cable also includes a scale line 13, which is engraved on the side wall of the trench 1 and is located within the shooting area of ​​the camera 4.

[0035] Specifically, when water accumulates in the ditch 1, the water level can be observed through the camera 4, and the changes in water level can be monitored in real time by combining the scale line 13, so that drainage measures can be taken in advance to avoid excessive water accumulation that submerges the cable 3 in the ditch.

[0036] Optionally, a lighting lamp (not shown in the figure) is installed on the camera 4. In the dim light in the ditch 1, the lighting lamp can be used to make it easier for the camera 4 to capture clear scale lines 13 and monitor changes in the water level in the ditch.

[0037] Optionally, such as Figure 1 and Figure 4 As shown, the temperature monitoring system for the trench cable also includes an adjustment component, which is installed on the side wall of the trench 1. The camera 4 is installed on the adjustment component, and the adjustment component is used to adjust the shooting angle of the camera 4.

[0038] Specifically, since the shooting range of camera 4 is limited, and sometimes the water level rises rapidly or exceeds the shooting range, the shooting angle of camera 4 can be adjusted by adjusting the component to capture the scale line 13 corresponding to the water surface. On the other hand, the shooting range of camera 4 can be expanded by adjusting the component, making it easier to observe the situation in a larger area of ​​the ditch 1 and expanding the function of camera 4.

[0039] Optionally, such as Figure 4 As shown, the adjustment assembly includes a drive component 8 and a connecting rod 9. The drive component 8 is installed on the side wall of the trench 1. The connecting rod 9 is connected to the output shaft of the drive component 8. The camera 4 is rotatably connected to the side wall of the trench 1. The end of the connecting rod 9 away from the drive component 8 is connected to the camera 4. The connecting rod 9 is used to drive the camera 4 to rotate.

[0040] Specifically, the driving component 8 can be a drive motor or a motor gear assembly, etc. The driving component 8 drives the connecting rod 9 to rotate, and the camera 4 is rotatably mounted on the side wall of the trench 1. For example, the camera 4 is connected to the side wall of the trench 1 through a connector. The connecting rod 9 can drive the camera 4 to rotate under the drive of the driving component 8, thereby expanding the horizontal imaging range of the camera 4.

[0041] Optionally, such as Figure 4 As shown, the adjustment assembly also includes a lifting component 7, which is mounted on the connecting rod 9. The telescopic end of the lifting component 7 is connected to the end of the camera 4 away from the side wall of the trench 1.

[0042] Specifically, the lifting component 7 can be a cylinder or a hydraulic cylinder, etc. The lifting component 7 can drive one end of the camera 4 to rise and fall. Since the other end of the camera 4 is rotatably connected to the side of the trench 1, the angle between the camera 4 and the side wall of the trench 1 changes, thereby expanding the longitudinal imaging range of the camera 4.

[0043] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A temperature monitoring system for underground cables, characterized in that, The device includes a cable rack (2), a trench cable (3), a connector (10), a temperature sensor (11), and a spectrum monitor (12). The cable rack (2) is installed on the side wall of the trench (1), the trench cable (3) is placed on the cable rack (2), the trench cable (3) is provided with a connector (10), the temperature sensor (11) is installed at the connector (10), the spectrum monitor (12) is installed on the side wall of the trench (1), and the trench cable (3) is within the monitoring area of ​​the spectrum monitor (12).

2. The temperature monitoring system for trench cables according to claim 1, characterized in that, It also includes a camera (4), which is installed on the side wall of the trench (1), and the number on the trench cable (3) is within the field of view of the camera (4).

3. The temperature monitoring system for trench cables according to claim 2, characterized in that, A smoke sensor (6) is installed on the camera (4).

4. The temperature monitoring system for trench cables according to claim 2, characterized in that, It also includes a scale line (13) which is engraved on the side wall of the trench (1) and is located within the shooting area of ​​the camera (4).

5. The temperature monitoring system for trench cables according to claim 2, characterized in that, The camera (4) is equipped with a light.

6. The temperature monitoring system for trench cables according to claim 2, characterized in that, Multiple cameras (4) are installed inside the trench (1), and the multiple cameras (4) are arranged on the inner walls of both sides of the trench (1).

7. The temperature monitoring system for trench cables according to claim 1, characterized in that, The spectral monitor (12) is installed on the side wall of the trench (1) perpendicular to the length of the cable.

8. The temperature monitoring system for trench cables according to claim 2, characterized in that, It also includes an adjustment component, which is installed on the side wall of the trench (1), and the camera (4) is installed on the adjustment component. The adjustment component is used to adjust the shooting angle of the camera (4).

9. The temperature monitoring system for trench cables according to claim 8, characterized in that, The adjustment assembly includes a drive member (8) and a connecting rod (9). The drive member (8) is installed on the side wall of the trench (1). The connecting rod (9) is connected to the output shaft of the drive member (8). The camera (4) is rotatably connected to the side wall of the trench (1). The end of the connecting rod (9) away from the drive member (8) is connected to the camera (4). The connecting rod (9) is used to drive the camera (4) to rotate.

10. The temperature monitoring system for trench cables according to claim 9, characterized in that, The adjustment assembly also includes a lifting component (7), which is mounted on the connecting rod (9). The telescopic end of the lifting component (7) is connected to the end of the camera (4) away from the side wall of the trench (1).

Images