CN216162469U - Based on GIL pipeline outer wall circulation electricity-taking device - Google Patents
Based on GIL pipeline outer wall circulation electricity-taking device Download PDFInfo
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- CN216162469U CN216162469U CN202121859676.8U CN202121859676U CN216162469U CN 216162469 U CN216162469 U CN 216162469U CN 202121859676 U CN202121859676 U CN 202121859676U CN 216162469 U CN216162469 U CN 216162469U
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Abstract
The utility model discloses a GIL pipeline outer wall circulation electricity taking device which comprises an A phase pipe body, a B phase pipe body and a C phase pipe body, wherein the A phase pipe body, the B phase pipe body and the C phase pipe body respectively comprise an inner GIL conductor and a GIL pipe wall wrapped at the periphery, electricity taking devices are arranged between the lower side pipe wall of the A phase pipe body and the upper side pipe wall of the B phase pipe body, between the lower side pipe wall of the B phase pipe body and the upper side pipe wall of the C phase pipe body and between the lower side pipe wall of the C phase pipe body and the ground, the electricity taking devices comprise guide rows arranged at the upper end and the lower end and an electricity taking sensor arranged in the middle, and the electricity taking sensor is externally connected with an output power line. The device has solved that battery power supply time is short, there is the potential safety hazard in the troublesome existence of active cable power supply construction, solar energy power supply receives weather and environmental impact problem. The GIL outer wall circulation electricity taking device has the advantages of being simple and convenient to install, stable in power supply and the like.
Description
Technical Field
The utility model relates to the technical field of electric power detection equipment, in particular to a GIL pipeline outer wall based circulation electricity taking device.
Background
A gas-insulated metal-enclosed transmission line (GIL) is a high-voltage, large-current, long-distance power transmission device which adopts SF6 gas insulation and has a shell and a conductor coaxially arranged. In the transportation and installation process of the GIL equipment, due to the fact that process control is not tight, faults such as tiny metal particles left in the GIL, damage of an insulating part and settlement of a GIL pipeline can easily occur. These faults may cause the GIL transmission lines to operate abnormally, causing GIL equipment faults, and therefore are essential for GIL pipeline state monitoring.
The existing monitoring sensor power supply technology has the following structure, as shown in fig. 1, the power supply is generally battery-powered or field active power-powered or solar power-powered, and when faults such as insulation, settlement, displacement and the like occur in the GIL, the monitoring and early warning can be timely carried out through the sensor. The sensor power supply mode of mainstream at present is lithium cell and active cable power supply, and few outdoor GIL transmission lines adopt solar energy power supply mode on the spot, adopt current power supply mode to have a series of problems: 1. the power supply of the lithium battery needs to adopt an ultra-low power consumption circuit design, the battery increases the volume of the sensor, the power consumption can reach an ultra-low standard at present, but the self-attenuation energy loss of the lithium battery cannot ensure the normal power supply of the battery for 3 to 5 years, so that the lithium battery needs to be frequently replaced or charged, and great burden is brought to later maintenance; 2. active cable power supply is the most extensive power supply mode at present, sensors are generally connected in series to supply power uniformly, a large number of cables need to be consumed by a long-distance GIL, when a sensor short-circuit fault exists midway, other sensors can stop working, and then the construction of a sensor power line is complicated, so that certain potential safety hazards exist for GIL power transmission safety; 3. the outdoor GIL power transmission line is powered by the solar energy on the spot, is only suitable for the outdoor, is greatly influenced by the weather, and is less in application at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a circulation electricity taking device based on the outer wall of a GIL pipeline, which takes a circulation loop formed by a high-voltage current-carrying conductor in GIL equipment as a primary side circuit of a mutual inductor, a grounding device, a ground wire, a shell grounding point and a metal shell as a secondary side circuit of the mutual inductor, and automatically takes electricity on the GIL shell as a power supply to supply power for a sensor for monitoring the operation state of the GIL through the circulation electricity taking device, so that the problems of short battery power supply time, troublesome power supply construction of an active cable, potential safety hazard and weather and environmental influence on solar power supply are solved. The GIL outer wall circulation electricity taking device has the advantages of being simple and convenient to install, stable in power supply and the like.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a get electric installation based on GIL pipeline outer wall circulation, includes A looks body, B looks body and C looks body, A looks body, B looks body and C looks body in all include inside GIL conductor and the GIL pipe wall of peripheral parcel, wherein all be equipped with between A looks body downside pipe wall and B looks body upside pipe wall, B looks body downside pipe wall and C looks body upside pipe wall and C looks body downside pipe wall and the ground and get the electric installation, get the electric installation including setting up at the water conservancy diversion of upper and lower extreme row and setting get the electric sensor in the centre, get the external output power line of electric sensor.
Furthermore, the water guide bar is connected to the wall of the GIL pipe, an induction electricity taking mode is adopted, and a surface-mounted installation mode is adopted for installation.
Further, the output power supply of the three-phase power taking device at each node of the A-phase tube body, the B-phase tube body and the C-phase tube body adopts a parallel structure.
Furthermore, a rechargeable battery is added in the output circuit of the power taking device.
Compared with the prior art, the utility model has the following beneficial effects:
the method adopts an induction electricity taking mode, does not need wiring, simplifies the power supply problem of the sensor for monitoring the GIL running state, is more stable than a lithium battery and a solar battery, has no regional use limitation, is more convenient than an active cable, and does not leave potential safety hazard on the GIL running; the three-phase GIL electricity taking device is connected with a power supply and excess energy recovery circuit in parallel, so that a more stable and safer power supply is provided for the sensor, and the problem of low output power of the single-phase electricity taking device is solved; the electricity taking device has an ultra-wide electricity voltage range, intelligent induction and wide application range; the electricity taking device is installed in a surface-mounted mode, installation is convenient and rapid, the structural design of the GIL is not changed, and potential safety hazards are avoided.
Drawings
FIG. 1 is a schematic diagram of a power supply mode and an installation structure of a conventional GIL sensor;
FIG. 2 is a schematic view of a power-taking device according to the present invention;
FIG. 3 is a schematic diagram of the power supply of the GIL power-taking device according to the present invention;
in the figure: 1. a power line; 2. an active powered sensor; 3. a battery, a passive powered sensor; 4. GIL tube wall; 5. a GIL conductor; 6. flow guiding and discharging; 7. taking a power sensor; 8. an output power line; 9. and (4) the earth.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific figures.
As shown in fig. 2 to 3, a GIL pipeline outer wall circulation electricity-taking device comprises an a-phase pipe body, a B-phase pipe body and a C-phase pipe body, wherein the a-phase pipe body, the B-phase pipe body and the C-phase pipe body respectively comprise an inner GIL conductor 5 and a GIL pipe wall 4 wrapped on the periphery, wherein all be equipped with between A looks pipe body downside pipe wall and B looks pipe body upside pipe wall, B looks pipe body downside pipe wall and C looks pipe body upside pipe wall and C looks pipe body downside pipe wall and the earth 9 and get the electric installation, it includes that the water conservancy diversion of setting at last lower extreme is arranged 6 and the electricity sensor 7 of getting of setting in the centre to get the electric installation, it connects output power line 8 to get electric sensor 7, water conservancy diversion is arranged 6 and is connected on GIL pipe wall 4, adopt the induction and get the electric mode, the installation adopts table to paste formula mounting means, the three-phase of every node of A looks pipe body, B looks pipe body and C looks pipe body is got the electric installation output and is adopted parallel structure, add rechargeable battery in getting electric installation output circuit.
In actual work, the self-circulation current taking device is arranged on the GIL grounding bar, the GIL is similar to a high-voltage cable in structure, a sealed protective aluminum shell is arranged on the outer layer of the conductor, and an induced electromotive force is generated in the shell when the current normally flows through the middle conductor of the aluminum shell. Under the rated current condition, the longer the GIL transmission line, the higher the electromotive force is, the guide bar 6 is additionally arranged on the surface of the shell of the GIL pipe wall 4, the induction electricity taking device is arranged on the guide bar 6, and a power supply is provided for a sensor for monitoring the operation state of the GIL in an induction electricity taking mode.
As shown in fig. 3, the output power supply diagram of the gir pipeline outer wall loop current power taking device is shown, the voltage amplitudes Ea, Eb and Ec induced by the pipeline outer shell are in direct proportion to the current of the conductor, overvoltage and overcurrent protection are designed in the power taking device, and as the induced electromotive force of the middle phase B is weaker than that of other two phases, a three-phase power taking device parallel power supply mode is designed, so that the problems of small single-phase power supply current and unstable voltage are solved; a small-capacity rechargeable battery is added in an output power circuit of the electricity taking device, when the output power of the electricity taking device is larger than the electric power used by the sensor, redundant electric energy of the electricity taking device is stored in a storage battery, and when the instantaneous power of the sensor is larger than the output power of the electricity taking device, the lithium battery supplements the electric energy, so that the stable operation of the sensor is ensured.
The device designs a GIL pipeline outer wall circulation electricity taking device which is arranged on a GIL shell flow guide row line and adopts an induction electricity taking mode; the output power supply of the three-phase power taking device of each node of the GIL three-phase power transmission pipeline adopts a parallel structure, so that the problem of weak current is solved, and a more stable power supply is provided for the sensor; a rechargeable battery is added in an output circuit of the power taking device, and the residual electric energy of the power taking device is provided with a large current guarantee for the high instantaneous power of the sensor; the electricity taking device adopts an induction electricity taking mode, adopts a surface-mounted installation mode for installation, does not change the original GIL design structure, and has no influence on the normal operation of the GIL; the ultra-wide primary side voltage range is matched with related equipment, and the electricity taking device is intelligently adjusted in an induction mode.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a get electric installation based on GIL pipeline outer wall circulation which characterized in that: including A looks body, B looks body and C looks body, A looks body, B looks body and C looks body in all include inside GIL conductor and the GIL pipe wall of peripheral parcel, wherein all be equipped with between A looks body downside pipe wall and B looks body upside pipe wall, B looks body downside pipe wall and C looks body upside pipe wall and the C looks body downside pipe wall and the ground and get the electric installation, get the electric installation including setting up at the water conservancy diversion row of upper and lower extreme and setting up the electric sensor of getting in the centre, the external output power line of electric sensor of getting.
2. The GIL pipeline outer wall based circulation current taking device is characterized in that: the water guide row is connected to the wall of the GIL pipe, an induction electricity taking mode is adopted, and a surface-mounted installation mode is adopted in installation.
3. The GIL pipeline outer wall based circulation current taking device is characterized in that: the output power supply of the three-phase electricity taking device at each node of the A-phase tube body, the B-phase tube body and the C-phase tube body adopts a parallel structure.
4. The GIL pipeline outer wall based circulation current taking device is characterized in that: and a rechargeable battery is added into the output circuit of the power taking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121859676.8U CN216162469U (en) | 2021-08-10 | 2021-08-10 | Based on GIL pipeline outer wall circulation electricity-taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121859676.8U CN216162469U (en) | 2021-08-10 | 2021-08-10 | Based on GIL pipeline outer wall circulation electricity-taking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216162469U true CN216162469U (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121859676.8U Active CN216162469U (en) | 2021-08-10 | 2021-08-10 | Based on GIL pipeline outer wall circulation electricity-taking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216162469U (en) |
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2021
- 2021-08-10 CN CN202121859676.8U patent/CN216162469U/en active Active
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