27.5 kV cable intelligent docking device for electrified railway

Abstract

The utility model provides a 27.5 kV cable intelligent docking device for an electrified railway, which relates to the technical field of railway cable docking and comprises a box body, and a monitoring host is arranged on the outer side of the box body. A connecting busbar is erected in the box body through an insulating assembly, the connecting busbar is connected with a plurality of terminals, and the terminals are used for connecting an incoming cable, an outgoing cable and the connecting busbar to form a continuous circuit; the monitoring assembly is arranged on the terminal head, and the monitoring assembly is connected with the monitoring host. According to the utility model, the incoming cable and the outgoing cable are respectively connected with the connecting busbar through the terminal head, so that all cable heads are visualized, maintenance and inspection are facilitated, the monitoring assembly is arranged on the terminal head, the state of the cable heads is monitored in real time in a temperature monitoring mode, faults are convenient to find, and the fault detection efficiency is improved. The problem that the cable intermediate joint is inconvenient to check when a fault occurs is solved, and the power supply reliability of the 27.5 kV cable of the power supply line of the railway power supply system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway cable butt joint technical field, specifically, 27.5kV cable intelligent butt joint device for electrified railway. BACKGROUND

[0002] High-speed railway has become a beautiful business card of China, and the high-speed railway system is a complex system composed of motor train units, line bridges and tunnels, traction power supply, operation control and passenger service subsystems, and the systems interact with each other and influence each other. The occurrence of faults in the operation process of high-speed railway also attracts high attention from the whole society. The accidents caused by the failure of the power supply system leading to the interruption of railway operation account for a large part of all accidents, so the power supply system of high-speed railway is directly related to the operation quality, safety and reliability of high-speed railway.

[0003] Improving the reliability of the operation of the 27.5kV special cable and its accessories of the power supply system is an important measure to improve the reliability of the power supply of high-speed railway. The 27.5kV power supply line long cable of the electrified railway catenary is generally divided into several units, and a cable intermediate joint is arranged between each unit; the cable intermediate joint is usually arranged in a cable well or a cable slot, which is inconvenient for inspection and maintenance management. The 27.5kV cable intermediate joint is a frequent failure part of the cable operation, and it is not convenient to find the fault in the cable operation, the interruption of train operation is long, the power supply recovery is slow, and the influence on railway transportation is great.

[0004] Therefore, the problem of inconvenient inspection of the failure of the cable intermediate joint needs to be solved, and the power supply reliability of the 27.5kV cable of the power supply line of the railway power supply system needs to be improved. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a 27.5kV cable intelligent butt joint device for electrified railway to improve the above problems. In order to realize the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] The application provides a 27.5kV cable intelligent butt joint device for electrified railway, which comprises:

[0007] The box body is used to be arranged above the hundred-year flood level, and a monitoring host is arranged on the outer side of the box body;

[0008] The connecting bus bar is erected in the box body through the insulation assembly, a plurality of terminal heads are connected to the connecting bus bar, and the terminal heads are used to connect the incoming cable and the outgoing cable with the connecting bus bar to form a continuous circuit;

[0009] The monitoring assembly is arranged on the terminal head, the monitoring assembly is connected with the monitoring host, and the monitoring assembly is used to monitor the temperature of each incoming cable and outgoing cable.

[0010] Preferably, a coupling sensor is arranged in the box, the coupling sensor is connected with the monitoring host, and the coupling sensor is used to collect partial discharge information in the box.

[0011] Preferably, the insulation assembly comprises:

[0012] A plurality of support composite insulators are connected with the connecting busbar through rectangular bus fixing fittings, the plurality of support composite insulators are arranged staggered up and down, and the plurality of support composite insulators are arranged equidistantly.

[0013] A plurality of support composite insulator fixing bases are fixedly connected in the box, and the support composite insulator fixing bases are fixedly connected with the support composite insulators.

[0014] Preferably, a grounding busbar is arranged in the box, the grounding busbar is connected with the inner wall of the box through a plurality of grounding busbar fixing bases, and the grounding busbar is used to connect a first grounding cable of an incoming cable and a second grounding cable of an outgoing cable.

[0015] Preferably, the plurality of terminal heads comprise:

[0016] A plurality of first terminal heads are connected below the connecting busbar, and the first terminal heads are used to connect the incoming cable.

[0017] A plurality of second terminal heads are connected above the connecting busbar, and the second terminal heads are used to connect the outgoing cable.

[0018] Preferably, the monitoring assembly comprises a plurality of temperature sensors, the temperature sensors are arranged on the terminal heads, the temperature sensors are connected with the monitoring host, and the temperature sensors are used to monitor the temperature of the incoming cable or the outgoing cable.

[0019] Preferably, a rain cover is arranged at the top end of the box, a power supply module is arranged in the box, the power supply module comprises a solar cell panel and a storage battery, the solar cell panel is connected with the rain cover, the storage battery is arranged in the box, the solar cell panel is connected with the storage battery, and the storage battery is used to supply power to electrical equipment.

[0020] Preferably, an intelligent temperature and humidity control heater is arranged in the box, and the intelligent temperature and humidity control heater is used to monitor and control the temperature and humidity in the box.

[0021] Preferably, the monitoring host comprises:

[0022] A data processing device connected with the monitoring component, the data processing device is used for data collection and processing;

[0023] A communication device connected with the data processing device, the communication device is used for uploading the monitoring data of the data processing device to a background management system or / and a mobile phone APP in real time;

[0024] An alarm device connected with the data processing device, the alarm device is used for alarming when the monitoring data of the data processing device is higher or lower than a threshold value.

[0025] Preferably, the peripheral wall of the box is provided with a heat dissipation hole, and a flow guide shielding cover is connected to the peripheral wall of the box, the flow guide shielding cover is arranged corresponding to the heat dissipation hole, and the flow guide shielding cover is used for shielding the upper side and the side of the heat dissipation hole.

[0026] The utility model discloses a beneficial effect is:

[0027] The utility model discloses a terminal head connects incoming line cable, outgoing line cable respectively with the connection female row, makes cable head all visual, is convenient for overhauling and is looked over, and sets up monitoring component on the terminal head, and the state of cable head is monitored in real time through the temperature monitoring mode, makes it convenient to find when the failure, solves the problem that the cable intermediate joint is inconvenient to check when the failure, improves the power supply reliability of railway power supply system power supply line 27.5kV cable.

[0028] The other features and advantages of the utility model will be described in the subsequent specification, and, partially become obvious from the specification, or through the implementation of the utility model embodiment. The purpose and other advantages of the utility model can be realized and obtained through the structure specially pointed out in the written specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced to the drawing needed to be used in the embodiment, should understand, the following drawings only shows some embodiments of the utility model, therefore should not be taken as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0030] Figure 1 It is the structural schematic diagram of the utility model;

[0031] Figure 2 It is the box internal structure plan view of the utility model;

[0032] Figure 3The box front view of the utility model;

[0033] Figure 4 The box side view of the utility model;

[0034] Figure 5 The line connection schematic view of the utility model;

[0035] Figure 6 The monitoring host connection schematic view of the utility model;

[0036] Mark in the drawing: box 1, rain cover 11, solar cell panel 12, battery 13, flow guide shield 14, monitoring host 2, connecting busbar 3, first terminal head 31, second terminal head 32, temperature sensor 33, insulation assembly 4, support composite insulator 41, rectangular busbar fixing hardware 42, support composite insulator fixing base 43, incoming line cable 5, first grounding cable 51, grounding busbar 52, grounding busbar fixing base 53, outgoing line cable 6, second grounding cable 61, coupling sensor 7, intelligent temperature and humidity control heater 8. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0038] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Meanwhile, in the description of the utility model, the terms "first", "second" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0039] As Figure 1 and Figure 5 shown, the embodiment provides a kind of 27.5kV cable intelligent docking device for electrified railway, comprising:

[0040] A box 1 is arranged above the hundred-year flood level, and a monitoring host 2 is arranged outside the box 1.

[0041] A connecting busbar 3 is arranged in the box 1 through an insulation assembly 4, and a plurality of terminal heads are connected to the connecting busbar 3, and the terminal heads are used to connect incoming cables 5 and outgoing cables 6 to the connecting busbar 3 to form a continuous circuit.

[0042] A monitoring assembly is arranged on the terminal heads, and the monitoring assembly is connected to the monitoring host 2, and the monitoring assembly is used to monitor the temperature of each incoming cable 5 and outgoing cable 6.

[0043] It can be understood that the box 1 is arranged above the hundred-year flood level, which solves the problem that the cable intermediate joint is easily soaked by water. The connecting busbar 3 is arranged in the box 1 through the insulation assembly 4, which avoids the risk of electric leakage caused by the contact between the connecting busbar 3 and the box 1. The incoming cables 5 and outgoing cables 6 are connected to the connecting busbar 3 through the terminal heads, which reduces the form of cable intermediate joint, unifies the form of terminal head, and reduces the fault point, improves the power supply reliability, and is convenient for management. After opening the box door of the box 1, the state of the cable head can be directly observed. The cable head is fully visualized, which is convenient for maintenance and repair management. The monitoring assembly is arranged on the terminal head to monitor the temperature of each incoming cable 5 and outgoing cable 6 in real time. The monitoring host 2 collects the temperature information of each incoming cable 5 and outgoing cable 6 in real time and uploads it to the background management system or / and the mobile phone APP. When the temperature of the incoming cable 5 or / and the outgoing cable 6 is abnormal, an alarm is given. In this technical scheme, the incoming cable 5 and outgoing cable 6 are connected to the connecting busbar 3 through the terminal heads, so that the cable head is fully visualized, which is convenient for maintenance and inspection. The monitoring assembly is arranged on the terminal head, the state of the cable head is monitored in real time through the temperature monitoring mode, which makes it easy to find the fault, solves the problem that the cable intermediate joint is not convenient to check when a fault occurs, and improves the power supply reliability of the 27.5kV power supply cable of the railway power supply system.

[0044] As shown in Figures 1-2 The box 1 is provided with a coupling sensor 7 connected to the monitoring host 2, and the coupling sensor 7 is used to collect the partial discharge information in the box 1.

[0045] It can be understood that when the partial discharge information in the box 1 is abnormal, there is a risk of electric leakage. Therefore, the coupling sensor 7 is used to collect the partial discharge information in the box 1, the partial discharge information in the box 1 is monitored in real time, and the monitoring host 2 uploads it to the background management system or / and the mobile phone APP. When the partial discharge information in the box 1 is abnormal, an alarm is given through the monitoring host 2.

[0046] AsFigure 1 As shown, the insulation assembly 4 comprises:

[0047] A plurality of support composite insulators 41 are connected with the connecting busbar 3 through rectangular bus fixing fittings 42, the plurality of support composite insulators 41 are arranged staggered up and down, and the plurality of support composite insulators 41 are arranged equidistantly.

[0048] A plurality of support composite insulator fixing bases 43 are fixedly connected in the box body 1, and the support composite insulator fixing bases 43 are fixedly connected with the support composite insulators 41.

[0049] It can be understood that the support composite insulator fixing bases 43 fix and limit the support composite insulators 41 in the box body 1, the connecting busbar 3 is erected in the box body 1 through the plurality of support composite insulators 41, so that a fixed distance is maintained between the connecting busbar 3 and the inner wall of the box body 1, and the leakage accident caused by the change of the distance between the connecting busbar 3 and the box body 1 is avoided, and the equidistant arrangement of the plurality of support composite insulators 41 guarantees the connection stability of the connecting busbar 3.

[0050] As shown in the figure, Figures 1-2 The box body 1 is provided with a grounding busbar 52, the grounding busbar 52 is connected with the inner wall of the box body 1 through a plurality of grounding busbar fixing bases 53, and the grounding busbar 52 is used for connecting a first grounding cable 51 of the incoming cable 5 and a second grounding cable 61 of the outgoing cable 6.

[0051] It can be understood that the grounding busbar 52 is connected on one side in the box body 1 through the plurality of grounding busbar fixing bases 53, each incoming cable 5 is connected with the grounding busbar 52 after the first grounding cable 51 is led out, and each outgoing cable 6 is connected with the grounding busbar 52 after the second grounding cable 61 is led out, so as to realize the grounding of the incoming cable 5 and the outgoing cable 6.

[0052] It should be noted that the incoming cable 5 obtains the first grounding cable 51 by leading out the metal shielding layer and the armored layer, and the outgoing cable 6 obtains the second grounding cable 61 by leading out the metal shielding layer and the armored layer.

[0053] As shown in the figure, Figure 1 The plurality of terminal heads comprise:

[0054] A plurality of first terminal heads 31 are connected below the connecting busbar 3, and the first terminal heads 31 are used for connecting the incoming cable 5.

[0055] A plurality of second terminal heads 32 are connected above the connecting busbar 3, and the second terminal heads 32 are used for connecting the outgoing cable 6.

[0056] It can be understood that the first terminal head 31 and the second terminal head 32 are arranged above and below the connecting busbar 3 respectively, and after the incoming cable 5 is connected with the first terminal head 31 and the outgoing cable 6 is connected with the second terminal head 32, the incoming cable 5 and the outgoing cable 6 are arranged above and below the connecting busbar 3 respectively, so that the incoming cable 5 and the outgoing cable 6 are arranged separately, which is convenient for the staff to overhaul and patrol.

[0057] As shown in Figure 1 The monitoring assembly comprises a plurality of temperature sensors 33 arranged on the terminal heads, the temperature sensors 33 are connected with the monitoring host 2, and the temperature sensors 33 are used for monitoring the temperature of the incoming cable 5 or the outgoing cable 6.

[0058] It can be understood that the temperature information of the incoming cable 5 or the outgoing cable 6 is monitored by the temperature sensor 33, the temperature information monitored by the temperature sensor 33 is collected by the monitoring host 2, and the temperature information is uploaded to the background management system or / and the mobile phone APP, when the cable intermediate joint fails, the staff can quickly judge the fault point according to the temperature information of the incoming cable 5 or / and the outgoing cable 6, and the power supply recovery can be realized in a short time.

[0059] As shown in Figures 1-4 The box 1 is provided with a rain cover 11 at the top end, a power supply module is arranged in the box 1, the power supply module comprises a solar cell panel 12 and a storage battery 13, the solar cell panel 12 is connected to the rain cover 11, the storage battery 13 is arranged in the box 1, the solar cell panel 12 is connected with the storage battery 13, and the storage battery 13 is used for power supply of the electric equipment.

[0060] As shown in Figures 1-2 The box 1 is provided with a smart temperature and humidity control heater 8, which is used for monitoring and regulating the temperature and humidity in the box 1.

[0061] It can be understood that the smart temperature and humidity control heater 8 is used for monitoring the temperature and humidity in the box 1, and regulating the temperature and humidity in the box 1 by heating, which has the functions of moisture-proof and condensation prevention.

[0062] It should be noted that the smart temperature and humidity control heater 8 is provided with a protective cover for preventing current interference and guiding heating air flow, and the smart temperature and humidity control heater 8 is away from the cable in the box 1, so as to avoid affecting the normal operation of the cable.

[0063] As shown in Figure 6 The monitoring host 2 comprises:

[0064] a data processing device connected with the monitoring component, the data processing device being used for data collection and processing;

[0065] a communication device connected with the data processing device, the communication device being used for uploading the monitoring data of the data processing device to a background management system or / and a mobile phone APP in real time;

[0066] an alarm device connected with the data processing device, the alarm device being used for alarming when the monitoring data of the data processing device is higher or lower than a threshold value.

[0067] It can be understood that the data processing device collects and processes the temperature information monitored by the temperature sensor 33 and the partial discharge information monitored by the coupling sensor 7, and the data processing device uploads the collected and processed data to the background management system or / and the mobile phone APP in real time through the communication device, so as to facilitate the staff to check, and the data processing device configures a temperature information abnormal threshold value and a partial discharge information abnormal threshold value, and when the temperature information or the partial discharge information is higher or lower than the threshold value, the alarm device alarms to prompt the staff to repair.

[0068] As shown in Figure 4 The peripheral wall of the box body 1 is provided with a heat dissipation hole, and a flow guide shielding cover 14 is connected to the peripheral wall of the box body 1, the flow guide shielding cover 14 is arranged corresponding to the heat dissipation hole, and the flow guide shielding cover 14 is used for shielding the upper side and the side of the heat dissipation hole.

[0069] It can be understood that the peripheral wall of the box body 1 is provided with a heat dissipation hole to ensure the heat dissipation performance of the box body 1, and the flow guide shielding cover 14 is connected to the peripheral wall of the box body 1 to shield the upper side and the side of the heat dissipation hole, so as to avoid rainwater entering the box body 1 through the heat dissipation hole and avoid liquid accumulated on the outer wall of the box body 1 entering the box body 1 through the heat dissipation hole.

[0070] It should be noted that the box body 1 is a stainless steel box body, and the wall thickness of the stainless steel box body is 3mm.

[0071] The above only describes preferred embodiments of the present application and is not intended to limit the present application, and for those skilled in the art, the present application can be changed and varied. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0072] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A smart cable splicing device for 27.5kV cables used in electrified railways, characterized in that, include: The enclosure is designed to be installed above the 100-year flood level, and a monitoring host is installed on the outside of the enclosure; A connecting busbar is mounted inside the enclosure via an insulating component. The connecting busbar is connected to multiple terminal heads, which are used to connect the incoming cable and the outgoing cable to the connecting busbar to form a continuous circuit. A monitoring component is disposed on the terminal head and connected to the monitoring host. The monitoring component is used to monitor the temperature of each incoming cable and outgoing cable.

2. The intelligent cable docking device for 27.5kV electrified railways according to claim 1, characterized in that, A coupling sensor is installed inside the enclosure and is connected to the monitoring host. The coupling sensor is used to collect partial discharge information inside the enclosure.

3. The intelligent cable docking device for 27.5kV electrified railways according to claim 1, characterized in that, The insulating component includes: Multiple supporting composite insulators are provided, and the supporting composite insulators are connected to the connecting busbar through rectangular busbar fixing hardware. The multiple supporting composite insulators are arranged alternately vertically and equidistantly between each other. Multiple supporting composite insulator fixing bases are fixedly connected to the housing, and the supporting composite insulator fixing bases are fixedly connected to the supporting composite insulators.

4. The intelligent cable docking device for 27.5kV electrified railways according to claim 1, characterized in that, The enclosure is equipped with a grounding busbar, which is connected to the inner wall of the enclosure through multiple grounding busbar fixing bases. The grounding busbar is used to connect the first grounding cable of the incoming cable and the second grounding cable of the outgoing cable.

5. The intelligent cable docking device for 27.5kV electrified railways according to claim 1, characterized in that, The plurality of terminal headers include: Multiple first terminal heads are connected below the connecting busbar and are used to connect the incoming cable. Multiple second terminal heads are connected above the connecting busbar and are used to connect outgoing cables.

6. The intelligent cable docking device for 27.5kV electrified railways according to claim 1, characterized in that, The monitoring component includes multiple temperature sensors, which are mounted on the terminal head and connected to the monitoring host. The temperature sensors are used to monitor the temperature of the incoming or outgoing cable.

7. The intelligent cable docking device for 27.5kV electrified railways according to claim 1, characterized in that, The top of the enclosure is equipped with a rain cover, and a power supply module is installed inside the enclosure. The power supply module includes a solar panel and a battery. The solar panel is connected to the rain cover, and the battery is installed inside the enclosure. The solar panel is connected to the battery, and the battery is used to supply power to the electrical equipment.

8. The intelligent cable docking device for 27.5kV electrified railways according to claim 1, characterized in that, The chamber is equipped with an intelligent temperature and humidity control heater, which is used to monitor and regulate the temperature and humidity inside the chamber.

9. The intelligent splicing device for 27.5kV cables used in electrified railways according to claim 1, characterized in that, The monitoring host includes: A data processing device, connected to the monitoring component, is used for data acquisition and processing. A communication device, which is connected to the data processing device, is used to upload the monitoring data of the data processing device to the background management system and / or mobile APP in real time. An alarm device is connected to the data processing equipment and is used to issue an alarm when the monitoring data of the data processing equipment is higher or lower than a threshold.

10. The intelligent cable docking device for 27.5kV electrified railways according to claim 1, characterized in that, The casing has heat dissipation holes on its peripheral wall, and a flow guide shield is also connected to the peripheral wall of the casing. The flow guide shield is set corresponding to the heat dissipation holes and is used to shield the top and sides of the heat dissipation holes.

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