CN110007363B - Buried cable loss reporting system - Google Patents
Buried cable loss reporting system Download PDFInfo
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- CN110007363B CN110007363B CN201910396869.5A CN201910396869A CN110007363B CN 110007363 B CN110007363 B CN 110007363B CN 201910396869 A CN201910396869 A CN 201910396869A CN 110007363 B CN110007363 B CN 110007363B
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- 238000003860 storage Methods 0.000 claims abstract description 23
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 230000000007 visual effect Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000013589 supplement Substances 0.000 claims description 5
- 230000008030 elimination Effects 0.000 claims description 4
- 238000003379 elimination reaction Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000002274 desiccant Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 13
- 230000009466 transformation Effects 0.000 abstract description 13
- 230000006837 decompression Effects 0.000 description 14
- 238000010276 construction Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 238000011835 investigation Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Locating Faults (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a buried cable loss reporting system, which comprises a plurality of cables buried underground, wherein the cables comprise core wires, an outer insulating layer and an armor layer which are sequentially sleeved from inside to outside, and an air cavity is formed between the outer insulating layer and the armor layer; the air conditioner further comprises a compressor and an air storage tank which are sequentially arranged along the air flow direction, wherein a main pipeline is communicated with the downstream of the air storage tank, a plurality of data acquisition assemblies which are in one-to-one correspondence with the air cavities and are communicated with each other are communicated with the downstream of the main pipeline, and each data acquisition assembly comprises an air pressure sensor and a data feedback device; and a monitor cooperating with each of the data acquisition components and the compressor. The buried cable damage reporting system can rapidly and accurately judge the damaged part of the cable, so that corresponding cable faults can be removed in time, and stable and continuous operation of the power transmission and transformation system is ensured.
Description
Technical Field
The invention relates to the technical field of cable damage detection and fault investigation, in particular to a buried cable damage reporting system.
Background
Buried cables are the most common way for power transmission and transformation systems to access power distribution facilities such as communities and factories, and in long-term work and practice, it is found that cable sheaths are often damaged due to external force in the processes of building construction, road administration construction and the like, and in most cases, only the sheaths of the cables are damaged in construction without directly causing power failure, so that power departments cannot timely find the cables, and in the case, a construction unit generally directly backfills a construction site, so that great potential safety hazards and huge economic losses are caused for normal and stable operation and power supply of the power transmission and transformation systems.
Accordingly, in the operation process of the subsequent power transmission and transformation system, if the whole power transmission and transformation system fails due to the damaged part of the cable, the cable is buried underground and backfilled in time, and the damaged position of the cable cannot be directly determined, so that the fault checking time is long, the loss of manpower and material resources required in the checking process is large, and a plurality of inconveniences are caused for the normal work and life of related power utilization units and users.
Therefore, how to quickly and accurately judge the damaged part of the cable, and to timely remove the corresponding cable fault, and to ensure the stable and continuous operation of the power transmission and transformation system is an important technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
The invention aims to provide a buried cable loss reporting system which can rapidly and accurately judge the damaged part of a cable, so that corresponding cable faults can be removed in time, and stable and continuous operation of a power transmission and transformation system is ensured.
In order to solve the technical problems, the invention provides a buried cable loss reporting system, which comprises a plurality of cables buried underground, wherein the cables comprise core wires, an outer insulating layer and an armor layer which are sequentially sleeved from inside to outside, and an air cavity is formed between the outer insulating layer and the armor layer;
The air conditioner further comprises a compressor and an air storage tank which are sequentially arranged along the air flow direction, wherein a main pipeline is communicated with the downstream of the air storage tank, a plurality of data acquisition assemblies which are in one-to-one correspondence with the air cavities and are communicated with each other are communicated with the downstream of the main pipeline, and each data acquisition assembly comprises an air pressure sensor and a data feedback device;
and a monitor cooperating with each of the data acquisition components and the compressor.
Preferably, the data acquisition assembly further comprises an audible and visual alarm.
Preferably, a valve device is openably and closably arranged at a communication position between the data acquisition assembly and the air cavity.
Preferably, a filtering device filled with a drying agent is communicated between the air storage tank and the main pipeline.
Preferably, the data feedback device is connected with the monitor through a wired signal connection or a wireless signal connection.
Compared with the background technology, in the arrangement and operation process of the buried cable loss reporting system, the compressor is matched with the air storage tank to inflate each air cavity through the main pipeline, the air pressure sensor senses and monitors the air pressure in the air cavity in real time until the air pressure in the air cavity of each cable reaches a preset air pressure value, at the moment, the air pressure sensor feeds back signals to the monitor through the data feedback device, and the monitor controls the compressor to stop inflating and maintains the pressure of the main pipeline and each air cavity; when the cable is normally operated and used, if the main structure of the cable such as an armor layer is damaged due to external construction or other reasons, an air cavity at the damaged position can leak air to lose pressure, if the air pressure value at the air cavity is rapidly reduced and reaches the lower limit of the air pressure, an air pressure sensor feeds back a rapid pressure loss signal to a monitor through a data feedback device, and a worker accurately judges the position of the cable corresponding to the data feedback device which feeds back the rapid pressure loss signal through the monitor and timely reaches the site to perform site repair and fault elimination operation on the corresponding damaged cable; if the air pressure in the air cavity is slowly reduced and reaches the lower limit of the air pressure due to long-term operation or local fine breakage in the operation process of the cable, the air pressure sensor feeds back a slow decompression signal to the monitor through the data feedback device, then the monitor controls the compressor to supplement air to the air cavity corresponding to the data feedback device for feeding back the slow decompression signal through the main pipeline in cooperation with the air storage tank until the air pressure of the air cavity is restored to a preset air pressure value, so that the accuracy of the follow-up operation and breakage fault feedback of the corresponding cable is ensured, and if necessary, even if the monitor receives the slow decompression signal, a worker can directly reach the cable corresponding to the data feedback device for feeding back the slow decompression signal according to the pre-judging working condition, so that the pre-investigation and the timely treatment of the cable breakage and the fault are finished, and the stable continuous operation of the power transmission and transformation system is ensured.
In another preferred aspect of the present invention, the data acquisition assembly further comprises an audible and visual alarm. When the cable is damaged, the audible and visual alarm gives out alarm sound and alarm light, so that after a worker receives a damaged decompression feedback signal sent by the data feedback device and reaches the scene, the position of the damaged cable can be rapidly determined according to the alarm sound and the alarm light, the positioning and checking time of the worker is further shortened, the damage maintenance and fault removal efficiency of the corresponding cable is improved, and the labor intensity and the labor cost of the worker are reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a buried cable loss reporting system according to an embodiment of the present invention.
The device comprises an 11-compressor, a 111-gas storage tank, a 112-filtering device, a 12-main pipeline, a 13-data acquisition component, a 14-monitor, a 21-outer insulating layer, a 22-armor layer, a 23-air cavity and a 231-valve device.
Detailed Description
The core of the invention is to provide a buried cable loss reporting system which can rapidly and accurately judge the damaged part of a cable, thereby timely eliminating corresponding cable faults and ensuring the stable and continuous operation of a power transmission and transformation system.
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a buried cable loss reporting system according to an embodiment of the present invention.
In a specific embodiment, the buried cable loss reporting system provided by the invention comprises a plurality of cables buried underground, wherein the cables comprise core wires, an outer insulating layer and an armor layer which are sequentially sleeved from inside to outside, and an air cavity is formed between the outer insulating layer and the armor layer; the air conditioner further comprises a compressor and an air storage tank which are sequentially arranged along the air flow direction, a main pipeline is communicated with the downstream of the air storage tank, a plurality of data acquisition assemblies which are in one-to-one correspondence with and are communicated with the air cavities are communicated with the downstream of the main pipeline, and each data acquisition assembly comprises an air pressure sensor and a data feedback device; and the monitor is matched with each data acquisition component and the compressor.
In the arrangement and operation process, the compressor is matched with the air storage tank to charge each air cavity through the main pipeline, the air pressure sensor senses and monitors the air pressure in the air cavities in real time until the air pressure in the air cavities of each cable reaches a preset air pressure value, at the moment, the air pressure sensor feeds back signals to the monitor through the data feedback device, and the monitor controls the compressor to stop charging and maintains the pressure of the main pipeline and each air cavity; when the cable is normally operated and used, if the main structure of the cable such as an armor layer is damaged due to external construction or other reasons, an air cavity at the damaged position can leak air to lose pressure, if the air pressure value at the air cavity is rapidly reduced and reaches the lower limit of the air pressure, an air pressure sensor feeds back a rapid pressure loss signal to a monitor through a data feedback device, and a worker accurately judges the position of the cable corresponding to the data feedback device which feeds back the rapid pressure loss signal through the monitor and timely reaches the site to perform site repair and fault elimination operation on the corresponding damaged cable; if the air pressure in the air cavity is slowly reduced and reaches the lower limit of the air pressure due to long-term operation or local fine breakage in the operation process of the cable, the air pressure sensor feeds back a slow decompression signal to the monitor through the data feedback device, then the monitor controls the compressor to supplement air to the air cavity corresponding to the data feedback device for feeding back the slow decompression signal through the main pipeline in cooperation with the air storage tank until the air pressure of the air cavity is restored to a preset air pressure value, so that the accuracy of the follow-up operation and breakage fault feedback of the corresponding cable is ensured, and if necessary, even if the monitor receives the slow decompression signal, a worker can directly reach the cable corresponding to the data feedback device for feeding back the slow decompression signal according to the pre-judging working condition, so that the pre-investigation and the timely treatment of the cable breakage and the fault are finished, and the stable continuous operation of the power transmission and transformation system is ensured.
In addition, because the local tiny damage or slow corrosion phenomenon of the cable main body structure occurs in the actual running process of the equipment, the air pressure in the air cavity does not rapidly decline, when the compressor is matched with the air storage tank to carry out pressure supplementing treatment on the slow pressure loss condition, if the air cavity is not restored to a preset air pressure value after the pressure supplementing treatment lasts for a certain time, the air pressure sensor feeds back corresponding signals according to the rapid pressure loss condition, so that workers can reach a construction site in time to carry out investigation, the follow-up power transmission and transformation system faults caused by the tiny damage or slow corrosion of the cable are avoided, and the stable and continuous running of the power system is ensured.
It should be noted that, in practical application, considering the compression resistance of related equipment and devices and meeting the working condition requirements in most cases, the preset air pressure value in the air cavity is preferably 2atm (standard atmospheric pressure, 1 standard atmospheric pressure is 101.325 kPa), the lower limit value of the air pressure is preferably 1.5atm, if the air cavity is slowly depressurized, the compressor is matched with the air storage tank to supplement the air cavity to 2atm, if the air cavity is rapidly depressurized and rapidly depressurized to below 1.5atm, the staff rapidly reaches the broken part of the cable to perform treatment, and in this case, the compressor is not usually started, and after the corresponding cable is repaired, the air supplementing operation is performed on the corresponding air cavity.
In addition, when the cable is damaged due to building construction or municipal construction, after the cable damage part is rapidly and timely judged by the buried cable damage reporting system, workers can arrive at the site in time and divide the cable damage responsibility with related construction units, so that the cost of cable maintenance caused by directly carrying out site backfilling without judging the construction damage responsible party is independently born by the related units of the power system, the equipment maintenance cost of the related units of the power system is greatly reduced, the responsibility division of the cable damage accident is clarified, and the construction efficiency of related engineering is improved.
The method is characterized in that in actual application, the monitor is arranged in a monitoring room of an operation supervision unit of a related power system, so that a worker can know the operation condition of the cable in time, and can quickly acquire related information and implement corresponding processing when the air cavity of the cable is subjected to voltage loss alarm.
Further, the data acquisition assembly also comprises an audible and visual alarm. When the cable is damaged, the audible and visual alarm gives out alarm sound and alarm light, so that after a worker receives a damaged decompression feedback signal sent by the data feedback device and reaches the scene, the position of the damaged cable can be rapidly determined according to the alarm sound and the alarm light, the positioning and checking time of the worker is further shortened, the damage maintenance and fault removal efficiency of the corresponding cable is improved, and the labor intensity and the labor cost of the worker are reduced.
More specifically, a valve device is openably and closably arranged at a communication position between the data acquisition assembly and the air chamber. In the cable manufacturing process, when sealing the cable armor layer and the outer insulating layer, a valve device is arranged at the corresponding position, so that an air cavity and a main pipeline are reliably communicated through the valve device when the cable is buried, the gas environment sensing capability of the data acquisition assembly is effectively ensured, and breakage information can be fed back quickly and accurately when the air cavity is subjected to pressure loss, so that a worker can perform relevant treatment in time.
On the other hand, a filtering device filled with a drying agent is communicated between the air storage tank and the main pipeline. The filtering device can thoroughly remove the moisture mixed in the gas output from the gas storage tank, so that adverse effects are caused on the normal conductive operation of the cable after the moisture and humidity flow passes through the air cavity, and the stable and reliable operation of the power transmission and transformation system is ensured.
In addition, the data feedback device is connected with the monitor through a wired signal or a wireless signal. Specifically, the data feedback device and the monitor can adopt a wired connection mode such as a data cable or a wireless connection mode such as bluetooth to transmit signals, and in practical application, a worker can flexibly select a connection mode between the data feedback device and the monitor according to the practical environment of a cable embedded position and related construction maintenance cost, so long as the connection mode can meet the practical use requirement of the buried cable loss reporting system in principle.
In summary, in the arrangement and operation process of the buried cable loss reporting system provided by the invention, the compressor is matched with the air storage tank to inflate each air cavity through the main pipeline, the air pressure sensor senses and monitors the air pressure in the air cavity in real time until the air pressure in the air cavity of each cable reaches a preset air pressure value, at the moment, the air pressure sensor feeds back a signal to the monitor through the data feedback device, and the monitor controls the compressor to stop inflating and maintains the pressure of the main pipeline and each air cavity; when the cable is normally operated and used, if the main structure of the cable such as an armor layer is damaged due to external construction or other reasons, an air cavity at the damaged position can leak air to lose pressure, if the air pressure value at the air cavity is rapidly reduced and reaches the lower limit of the air pressure, an air pressure sensor feeds back a rapid pressure loss signal to a monitor through a data feedback device, and a worker accurately judges the position of the cable corresponding to the data feedback device which feeds back the rapid pressure loss signal through the monitor and timely reaches the site to perform site repair and fault elimination operation on the corresponding damaged cable; if the air pressure in the air cavity is slowly reduced and reaches the lower limit of the air pressure due to long-term operation or local fine breakage in the operation process of the cable, the air pressure sensor feeds back a slow decompression signal to the monitor through the data feedback device, then the monitor controls the compressor to supplement air to the air cavity corresponding to the data feedback device for feeding back the slow decompression signal through the main pipeline in cooperation with the air storage tank until the air pressure of the air cavity is restored to a preset air pressure value, so that the accuracy of the follow-up operation and breakage fault feedback of the corresponding cable is ensured, and if necessary, even if the monitor receives the slow decompression signal, a worker can directly reach the cable corresponding to the data feedback device for feeding back the slow decompression signal according to the pre-judging working condition, so that the pre-investigation and the timely treatment of the cable breakage and the fault are finished, and the stable continuous operation of the power transmission and transformation system is ensured.
The buried cable loss reporting system provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (5)
1. The utility model provides a buried cable loss reporting system which characterized in that: the cable comprises a plurality of cables buried underground, wherein the cables comprise core wires, an outer insulating layer and an armor layer which are sequentially sleeved from inside to outside, and an air cavity is formed between the outer insulating layer and the armor layer;
The air conditioner further comprises a compressor and an air storage tank which are sequentially arranged along the air flow direction, wherein a main pipeline is communicated with the downstream of the air storage tank, a plurality of data acquisition assemblies which are in one-to-one correspondence with the air cavities and are communicated with each other are communicated with the downstream of the main pipeline, and each data acquisition assembly comprises an air pressure sensor and a data feedback device;
The monitor is matched with each data acquisition component and each compressor;
The air cavities are inflated through the main pipeline by the aid of the compressor in combination with the air storage tank, the air pressure sensor senses and monitors the air pressure in the air cavities in real time until the air pressure in the air cavities of the cables reaches a preset air pressure value, at the moment, the air pressure sensor feeds back signals to the monitor through the data feedback device, and the monitor controls the compressor to stop inflation and maintains pressure on the main pipe body and the air cavities; if the armor layer structure is damaged, an air cavity at the damaged position can leak air to lose pressure, if the air pressure value at the air cavity is rapidly reduced and reaches the air pressure lower limit, the air pressure sensor feeds back a rapid pressure loss signal to the monitor through the data feedback device, and a worker accurately judges the cable position corresponding to the data feedback device which feeds back the rapid pressure loss signal through the monitor and timely reaches the site to carry out site repair and fault elimination operation on the corresponding damaged cable; if the air pressure in the air cavity slowly decreases and reaches the air pressure lower limit, the air pressure sensor feeds back a slow pressure loss signal to the monitor through the data feedback device, and then the monitor controls the compressor to cooperate with the air storage tank to supplement air to the air cavity corresponding to the data feedback device feeding back the slow pressure loss signal through the main pipeline until the air pressure of the air cavity is restored to a preset air pressure value.
2. The buried cable loss reporting system of claim 1, wherein: the data acquisition assembly further comprises an audible and visual alarm.
3. The buried cable loss reporting system of claim 1, wherein: and a valve device is arranged at the communication part between the data acquisition assembly and the air cavity in an openable and closable manner.
4. The buried cable loss reporting system of claim 1, wherein: and a filtering device filled with a drying agent is communicated between the air storage tank and the main pipeline.
5. The buried cable loss reporting system of claim 1, wherein: the data feedback device is connected with the monitor through a wired signal or a wireless signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910396869.5A CN110007363B (en) | 2019-05-13 | 2019-05-13 | Buried cable loss reporting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910396869.5A CN110007363B (en) | 2019-05-13 | 2019-05-13 | Buried cable loss reporting system |
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| CN110007363A CN110007363A (en) | 2019-07-12 |
| CN110007363B true CN110007363B (en) | 2024-05-17 |
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| CN114508702A (en) * | 2022-03-01 | 2022-05-17 | 青岛西海岸市政新能源热力有限公司 | Optimization control method for pressure difference and flow at tail end of main pipe network |
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