CN214590498U - Novel overhead line cable ground entry system - Google Patents
Novel overhead line cable ground entry system Download PDFInfo
- Publication number
- CN214590498U CN214590498U CN202023020660.6U CN202023020660U CN214590498U CN 214590498 U CN214590498 U CN 214590498U CN 202023020660 U CN202023020660 U CN 202023020660U CN 214590498 U CN214590498 U CN 214590498U
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- cable
- shaft
- pile foundation
- overhead line
- manhole
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Abstract
The utility model provides a novel overhead line cable system of going into ground, is including constructing in subaerial pile foundation (3), and the cable shaft has been pour to the periphery of pile foundation (3), and cable shaft rear end intercommunication cable pit sets up the cable hole on the roof of the cable shaft of pile foundation periphery, and power cable on the terminal tower on the pile foundation passes in the cable hole penetrates the cable shaft, and the duplex winding pile foundation gets into in the cable pit. The cable shaft is also provided with a manhole for people to pass through, so that maintenance personnel can enter the cable shaft for rush repair.
Description
Technical Field
The utility model belongs to overhead line cable field, concretely relates to novel overhead line cable system of going into ground.
Background
In recent years, with the acceleration of the urbanization process of China, the urban planning gradually improves the urban power line construction standard, and compared with the traditional overhead transmission line, the power cable tunnel has the advantages of high power supply safety and reliability, small damage to the environment, city land resource saving and the like, and is widely applied to more and more cities.
The urban power supply (power plant) is mainly located around the city, and the power supply line is generally led out in an overhead mode and is converted into a power cable tunnel form at a certain place entering the urban area. At present, cables are mainly connected into a cable tunnel in a mode of being directly buried underground (cable direct-buried mode), and more operation and maintenance experiences show that the cable direct-buried mode has more risks: (1) the cable has poor direct-buried heat dissipation capacity and reduced current-carrying capacity, is easy to become a 'neck' point of the power transmission line and reduces the power transmission efficiency; (2) the cable is directly buried underground and is easily damaged by actions such as nearby construction and the like, so that the power supply safety is reduced; (3) the direct-buried cable breaks down, and the ground needs to be excavated again, so that the maintenance is very inconvenient.
Disclosure of Invention
The to-be-solved technical problem of the utility model is convenient for cable heat dissipation and artifical the maintenance, for solving above-mentioned problem, the utility model provides a novel overhead line cable system of going into ground.
The purpose of the utility model is realized with the following mode:
the utility model provides a novel overhead line cable system of going into ground, is including constructing in subaerial pile foundation 3, and cable pit 4 has been pour to the periphery of pile foundation 3, and 4 rear end intercommunication cable ditches 9 of cable pit set up cable hole 5 on the roof of cable pit 4 of 3 peripheries of pile foundation, and power cable 10 on 1 ground passes in cable hole 5 penetrates cable pit 4, and it gets into in the cable ditch 9 to go round and leave pile foundation 3.
A manhole 6 for people to pass through is arranged on the top plate of the cable well 4 close to the cable trench 9.
The outermost layer of power cable 10 in the cable shaft 4 is connected with temperature sensor outward, and the PLC controller is connected to the temperature sensor electricity, and PLC controller electricity links the warning acoustic control device.
Compared with the prior art, the utility model discloses a be provided with the cable shaft that the cable passed under the subaerial under the terminal shaft tower to be provided with the manhole on the cable shaft, supply the maintainer to get into and salvage in the cable shaft.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is another angle diagram of the structure of the present invention.
Fig. 3 is a schematic diagram of a pile foundation.
Fig. 4 is a schematic of the wireline well and trench locations.
Fig. 5 is a schematic view of the cable well after the erection of the terminal tower.
Wherein 1 is the ground; 2 is a transmission tower; 3 is a pile foundation; 4 is a cable well; 5 is a cable hole; 6 is a manhole; 7 is a well cover; 8 is a ladder stand; 9 is a cable trench; 10 is a power cable; 11 is a cable holder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are only a part of the embodiments of the present invention, not all embodiments. Based on the utility model discloses the embodiment of applying for, to the technical personnel of this field, a plurality of changes and improvements etc. that make, all other embodiments that obtain all belong to the scope of the utility model protection.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, the utility model relates to a novel overhead line cable system of going into ground, including pile foundation 3 under ground 1, pouring of pile foundation 3's periphery has cable shaft 4, and cable shaft 4 intercommunication has cable pit 9, and cable shaft 4, cable pit 9 all set up under ground 1, and cable pit 9 intercommunication cable tunnel.
The cable 4 well comprises a top plate, a bottom plate and peripheral side walls, the other side of the cable 4 well is communicated with a cable trench 9, a terminal tower 2 is arranged on the ground 1, the upper end of the pile foundation 3 is connected with the terminal tower 2, and the lower end of the pile foundation 3 penetrates through the cable 4 well.
The up end plate of cable shaft 4 between cable pit 9 and pile foundation 3 is provided with manhole 6, is provided with the cat ladder 8 of being connected with manhole 6 in the cable shaft 4, and cat ladder 8 sets up on the inner wall of cable shaft 4, and ground 1 is stretched out to the entry of manhole 6 upper end, and manhole 6 leads to ground 1, and in maintainer accessible cat ladder 8 went into and out of cable shaft 4, the entrance cooperation that stretches out ground 1's manhole 6 has well lid 7. The maintainer can open well lid 7 on ground 1, get into cable shaft 4 through the entry of manhole 6 to inside going into cable shaft 4 along cat ladder 8 on the 4 inner walls of cable shaft, maintain power cable 10 under 1.
Be provided with the cable hole 5 that supplies power cable 10 to pass on the roof of cable shaft 4 along 3 peripheral directions on the pile foundation, power cable 10 on cable hole 5 and the cable mount 11 is located same vertical direction. The power cable 10 vertically passes through the cable hole 5 through the cable fixing frame 11 to enter the cable well 4 and bypasses the pile foundation 3 to enter the cable trench 9.
And a temperature sensor is arranged outside the outermost insulation layer of the power cable 10 in the cable well 4, the temperature sensor is electrically connected with an indoor PLC (programmable logic controller), and the PLC is electrically connected with a voice-operated alarm device. The temperature sensor is used for detecting the heat dissipation of the power cable 10, when the heat dissipation is poor, the peripheral temperature of the outer insulating layer of the power cable 10 is high, the temperature sensor transmits a detected temperature signal to the PLC, and the PLC controls the voice control alarm device to give an alarm after receiving the signal transmitted by the temperature sensor.
The working process of the utility model is as follows:
firstly, the construction of a pile foundation 3 of a terminal tower 2 is carried out, then foundation pit excavation is carried out on the ground 1 by combining the size of a cable well 4, a bottom plate, peripheral side walls and a top plate of the cable well 4 are poured after the foundation pit excavation is finished, and a cable trench 9 is simultaneously constructed.
In the roof of cable shaft 4 pours the in-process, reserve cable hole 5, the entrance cooperation well lid 7 of simultaneously construction manhole 6 and manhole 6 to lay cat ladder 8 on the inner wall of cable shaft 4.
And then, after the cable well 4 meets the design strength requirement, assembling construction of the terminal tower 2 is carried out on the pile foundation 3.
Finally, the power cable 10 on the terminal tower 2 sequentially and vertically penetrates through the soil layer on the cable well 4 and the cable hole 5 through the cable fixing frame 11 to enter the cable well 4, and the power cable 10 bypasses the pile foundation 3 to enter the cable trench 9 so as to enter the cable tunnel. A temperature sensor is mounted on the outer periphery of the outer insulation layer of the power cable 10 in the cable well 4.
The utility model discloses a cable shaft 4, cable pit 9, manhole 6, cat ladder 8, 7 several parts of well lid. Firstly, the construction of the pile foundation 3 of the terminal tower 2 is carried out, then the construction of the cable well 4, the cable trench 9, the manhole 6, the ladder stand 8 and the well cover 7 is carried out, and finally the laying construction of the power cable 10 is carried out.
The mode of aerial [ insulated ] line cable ingression can realize that power cable 10 inserts cable tunnel from terminal shaft tower 2 direct access cable shaft 4, cable pit 9, can not only make things convenient for laying construction of power cable 10, satisfies power cable 10's heat dissipation, current-carrying capacity requirement, adopts manhole 6 to make things convenient for personnel to get into simultaneously, and the trouble of being convenient for is salvageed, guarantees line power supply safety.
When the acoustic control alarm device reported to the police, open well lid 7, the maintainer got into the inside of cable shaft 4 along cat ladder 8 on 4 inner walls of cable shaft through manhole 6, carried out maintenance work.
The above description of the present invention is only the preferred embodiments shown in the attached drawings, but not intended to limit the scope of the present invention, and it should be noted that, for those skilled in the art, those skilled in the art should not pay any modification, equivalent replacement, improvement, etc. made by creative work without departing from the overall concept of the present invention, and these should be all included in the scope of the present invention.
Claims (4)
1. A novel overhead line cable ground system which is characterized in that: including building in subaerial pile foundation (3), cable shaft (4) have been pour to the periphery of pile foundation (3), and cable shaft (4) rear end intercommunication cable pit (9), set up cable hole (5) on the roof of cable shaft (4) of pile foundation (3) periphery, power cable (10) on ground (1) pass in cable hole (5) penetrate cable shaft (4), and it gets into in cable pit (9) to go round and leave pile foundation (3).
2. The novel overhead line cable entry system of claim 1, wherein: a manhole (6) for people to pass through is arranged on the top plate of the cable well (4) close to the cable trench (9).
3. The novel overhead line cable entry system of claim 2, wherein: the entry of manhole (6) stretches out ground (1) and the cooperation has well lid (7), and inside being provided with of cable shaft (4) is connected with manhole (6) cat ladder (8).
4. The novel overhead line cable entry system of claim 1, wherein: the outermost layer of power cable (10) in cable shaft (4) is connected with temperature sensor outward, and the PLC controller is connected to the temperature sensor electricity, and PLC controller electricity links the warning acoustic control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023020660.6U CN214590498U (en) | 2020-12-16 | 2020-12-16 | Novel overhead line cable ground entry system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023020660.6U CN214590498U (en) | 2020-12-16 | 2020-12-16 | Novel overhead line cable ground entry system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214590498U true CN214590498U (en) | 2021-11-02 |
Family
ID=78364749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023020660.6U Active CN214590498U (en) | 2020-12-16 | 2020-12-16 | Novel overhead line cable ground entry system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214590498U (en) |
-
2020
- 2020-12-16 CN CN202023020660.6U patent/CN214590498U/en active Active
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