CN111351527A - Intelligent cable explosion-proof box with pressure and gas monitoring function, system and application method thereof - Google Patents
Intelligent cable explosion-proof box with pressure and gas monitoring function, system and application method thereof Download PDFInfo
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- CN111351527A CN111351527A CN202010251826.0A CN202010251826A CN111351527A CN 111351527 A CN111351527 A CN 111351527A CN 202010251826 A CN202010251826 A CN 202010251826A CN 111351527 A CN111351527 A CN 111351527A
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- pressure
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- proof box
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
Abstract
The invention discloses an intelligent cable explosion-proof box with pressure and gas monitoring functions, a system and an application method thereof. The intelligent cable explosion-proof box and the system can monitor the pressure and gas generated at the position of the cable intermediate joint, thereby realizing timely handling of hidden trouble before a fire disaster occurs, protecting the safety of the intermediate joint, avoiding the fire disaster, and greatly improving the operation and maintenance level of the power cable.
Description
Technical Field
The invention relates to a cable connection detection technology of a power transmission technology, in particular to an intelligent cable explosion-proof box with a pressure and gas monitoring function, a system and an application method thereof.
Background
The urban development enables the use of power cables to be increased, the accident rate of the cables is increased, and the operation experience shows that the high-voltage cable accidents mostly occur at the position of the middle joint of the cable. Due to the quality, the installation process and other reasons, once the cable intermediate joint is exploded, an electrical fire is often caused, the adjacent cables around are also damaged, and the irreparable loss is caused to the whole power system. After the common explosion-proof box is installed at the position of the intermediate joint of the cable at present, the intermediate joint of the cable plays a certain protection role, and the protection role is mainly embodied in the prevention of spreading after the intermediate joint has an explosion accident. However, how to implement explosion monitoring and prevention of the cable explosion-proof box is still a technical problem to be solved.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the intelligent cable explosion-proof box and the system can monitor the pressure and gas generated at the position of the cable intermediate joint, so that the hidden trouble can be timely handled before a fire disaster occurs, the safety of the intermediate joint is protected, the fire disaster is avoided, and the operation and maintenance level of the power cable is greatly improved.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides an explosion-proof box of intelligent cable with pressure and gas monitoring function, includes explosion-proof box body, be equipped with pressure sensor, gaseous sensing subassembly, monitoring information sending module and battery that detects in the explosion-proof box body, pressure sensor, gaseous output that detects sensing subassembly link to each other with monitoring information sending module respectively, the battery links to each other with pressure sensor, gaseous sensing subassembly, monitoring information sending module's power end respectively, gaseous sensing subassembly that detects possesses at least one kind of gaseous detection function in hydrogen chloride, benzene, the acetaldehyde three.
Optionally, the explosion-proof box body is of a sleeve structure, the middle part of the explosion-proof box body protrudes transversely to form a mounting cavity inside the explosion-proof box body, and the pressure sensor, the gas detection sensing assembly, the monitoring information sending module and the battery are mounted in the mounting cavity.
Optionally, an energy release hole is formed in the outer wall of the part, protruding transversely, in the middle of the explosion-proof box body.
Optionally, the explosion-proof box body is made of glass fiber reinforced plastics.
In addition, the invention also provides an intelligent cable explosion-proof system with the pressure and gas monitoring function, which comprises a communication relay device and the intelligent cable explosion-proof box with the pressure and gas monitoring function, wherein a monitoring information sending module of the intelligent cable explosion-proof box is connected with a network through the communication relay device.
Optionally, the communication relay device includes a LoRaWAN communication relay module and a battery module connected to each other.
Optionally, an application method of the intelligent cable explosion-proof box with the pressure and gas monitoring function comprises the following implementation steps: the monitoring information sending module collects pressure data detected by the pressure sensor and gas data detected by the gas detection sensing assembly at regular time, and sends the gas data and the pressure data to the designated control background if the gas data or the pressure data exceed a preset threshold.
Optionally, the sending the gas data and the pressure data to the designated control background further includes: and the management and control background generates alarm information and pushes the alarm information to terminal equipment of operation and maintenance personnel in the station so as to remind the user of inquiring or solving the hidden trouble.
Optionally, the gas detection sensing component is a sensor having three gas detection functions of hydrogen chloride, benzene, and acetaldehyde, the alarm information generated by the control background further includes a cable intermediate joint state detected according to gas data and pressure data, the gas data includes three gas content data of hydrogen chloride, benzene, and acetaldehyde, and the step of detecting the cable intermediate joint state according to the pressure data and the pressure data includes: and adopting a pre-trained machine learning classification model to obtain the states of the cable intermediate joints corresponding to the input data of the pressure, the hydrogen chloride content, the benzene content and the acetaldehyde content, wherein the machine learning classification model is pre-trained to contain the mapping relation among the four input data of the pressure, the hydrogen chloride content, the benzene content and the acetaldehyde content and the states of the corresponding cable intermediate joints.
Compared with the prior art, the intelligent cable explosion-proof box with the pressure and gas monitoring function has the following advantages: the intelligent cable explosion-proof box comprises an explosion-proof box body, wherein a pressure sensor, a gas detection sensing assembly, a monitoring information sending module and a battery are arranged in the explosion-proof box body, the output ends of the pressure sensor and the gas detection sensing assembly are respectively connected with the monitoring information sending module, the battery is respectively connected with the power ends of the pressure sensor, the gas detection sensing assembly and the monitoring information sending module, and the gas detection sensing assembly has at least one gas detection function of hydrogen chloride, benzene and acetaldehyde, so that the pressure and the gas generated at the position of a middle joint of a cable can be monitored, the potential fault hazard can be timely treated before a fire disaster occurs, the safety of the middle joint is protected, the fire disaster is avoided, and the operation and maintenance level of a power cable is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent cable explosion-proof box according to an embodiment of the invention.
Fig. 2 is a schematic view of a communication line structure of the intelligent cable explosion-proof box according to the embodiment of the invention.
Illustration of the drawings: 1. an explosion-proof box body; 10. a mounting cavity; 11. a vent hole; 2. a pressure sensor; 3. a gas detection sensing assembly; 4. a monitoring information sending module; 5. a battery.
Detailed Description
As shown in fig. 1, the intelligent cable explosion-proof box with pressure and gas monitoring functions of the embodiment includes an explosion-proof box body 1, a pressure sensor 2 is arranged in the explosion-proof box body 1, a gas detection sensing assembly 3, a monitoring information sending module 4 and a battery 5, the pressure sensor 2 and the output end of the gas detection sensing assembly 3 are respectively connected with the monitoring information sending module 4, the battery 5 is respectively connected with the pressure sensor 2, the gas detection sensing assembly 3 and the power end of the monitoring information sending module 4, and the gas detection sensing assembly 3 has a gas detection function of at least one of hydrogen chloride, benzene and acetaldehyde (three independent sensors or partially or fully integrated sensors can be adopted as required).
In order to conveniently and timely process the potential fault hazard when finding faults, in the embodiment, the explosion-proof box body 1 is made of glass fiber reinforced plastics which are high-melting-point and high-strength materials, so that the explosion-proof effect is good, and the field processing is convenient and rapid.
As shown in fig. 1, in the present embodiment, the explosion-proof box body 1 is of a sleeve structure, and the middle portion protrudes laterally to form a mounting cavity 10 therein, and the pressure sensor 2, the gas detection sensing assembly 3, the monitoring information sending module 4 and the battery 5 are mounted in the mounting cavity 10.
As shown in fig. 1, in the present embodiment, an energy release hole 11 is provided on an outer wall of a portion of the explosion-proof box body 1 protruding transversely from the middle.
In the embodiment, the diameter of the pressure sensor 2 is not more than 1cm, the measurement range is 0.1-60 Mpa, and the precision is not less than 0.1% FS. The smaller volume of the pressure sensor can be conveniently arranged in the explosion-proof box body 1, and the high precision and the larger measurement range can meet the pressure measurement requirement of the explosion-proof box body 1. And, a threshold value is set for the pressure sensor 2 in the monitoring information transmitting module 4, and the monitoring information transmitting module 4 transmits the monitoring data if and only if the threshold value is exceeded, which is abnormal data.
In the embodiment, the diameter of the gas detection sensing assembly 3 is not more than 1cm, the measurement range is 0.01-10%, and the precision is not less than 0.1%. The smaller volume of the gas sensor can be conveniently arranged in the explosion-proof box body 1, and the pressure measurement requirement on the explosion-proof box body 1 can be met with high precision and a larger measurement range. And, a threshold value is set in the monitoring information transmitting module 4 for the gas detection sensor assembly 3, and the abnormal data monitoring information transmitting module 4 transmits the monitoring data if and only if the threshold value is exceeded.
In this embodiment, the monitoring information sending module 4 is composed of a single chip microcomputer and a communication module, and has the advantage of low power consumption.
In this embodiment, the battery 5 is powered by a number 5 battery with a large capacity, so that the sensor and the communication relay can be ensured to be capable of replacing the battery differently for a long time.
As shown in fig. 1 and fig. 2, the present embodiment further provides an intelligent cable explosion-proof system with pressure and gas monitoring functions, which includes a communication relay device (shown as b in fig. 1) and the aforementioned intelligent cable explosion-proof box with pressure and gas monitoring functions, and the monitoring information sending module 4 of the intelligent cable explosion-proof box is connected to a network through the communication relay device. The communication relay device is installed in a cable tunnel/cable trench (shown as a in fig. 1). The intelligent cable explosion-proof system with the pressure and gas monitoring function can effectively improve the communication capacity of the intelligent cable explosion-proof box by adding the communication relay device, and is particularly suitable for monitoring the cable intermediate joint in a cable tunnel/cable trench under a closed environment.
In this embodiment, the communication relay apparatus includes a LoRaWAN communication relay module and a battery module that are connected to each other. The LoRaWAN communication relay module adopts LoRaWAN multimedia wireless communication technology, the communication distance and the receiving sensitivity of the LoRaWAN communication relay module far exceed the current FSK and GFSK modulation, a plurality of transmitted signals occupy the same channel and are not influenced, and the communication relay receives data of super-threshold pressure and gas concentration detected by a sensor and sends the signals to a control platform; the communication relay device adopts a No. 5 battery, and the endurance is durable.
As shown in fig. 1 and fig. 2, this embodiment further provides an application method of the foregoing intelligent cable explosion-proof box with pressure and gas monitoring functions, which includes the following implementation steps: the monitoring information sending module 4 collects pressure data detected by the pressure sensor 2 and gas data detected by the gas detection sensing assembly 3 at regular time, and sends the gas data and the pressure data to a designated control background (shown in c in fig. 1) if the gas data or the pressure data exceeds a preset threshold. The method of the embodiment sends the data only when the gas data or the pressure data exceeds the preset threshold value, thereby avoiding the consumption of the battery power when normal data are transmitted and prolonging the service life of the battery.
In this embodiment, after sending the gas data and the pressure data to the designated management and control background, the method further includes: and the management and control background generates alarm information and pushes the alarm information to terminal equipment of operation and maintenance personnel in the station so as to remind the user of inquiring or solving the hidden trouble. The management and control platform sets up in operation and maintenance on duty room, can adopt wireless communication or optical fiber communication as required with communication relay, and the management and control backstage sends alarm information for operation and maintenance personnel information terminal equipment (cell-phone APP) in the station, reminds the inquiry, solves the trouble hidden danger, forms complete closed loop, can effectively promote power cable's operation and maintenance level.
In order to further improve the processing efficiency of operation and maintenance personnel in the station, the method further performs the step of diagnosing the state of the cable intermediate joint through the control background. In this embodiment, gaseous detection sensing subassembly 3 is for possessing the sensor of three kinds of gaseous detection functions of hydrogen chloride, benzene, acetaldehyde, and gaseous data includes three kinds of gaseous content data of hydrogen chloride, benzene, acetaldehyde, detects through three kinds of gaseous detection of hydrogen chloride, benzene, acetaldehyde and improves the diagnosis degree of accuracy, and the alarm information that the management and control backstage generated still contains the cable intermediate head state that obtains according to gaseous data and pressure data detection, and the step of the cable intermediate head state that obtains according to pressure data and pressure data detection includes: and adopting a pre-trained machine learning classification model to obtain the states of the cable intermediate joints corresponding to the input data of the pressure, the hydrogen chloride content, the benzene content and the acetaldehyde content, wherein the machine learning classification model is pre-trained to contain the mapping relation among the four input data of the pressure, the hydrogen chloride content, the benzene content and the acetaldehyde content and the states of the corresponding cable intermediate joints.
In this embodiment, the cable intermediate head state includes two types of states, including normal state, unusual, wherein unusual state can carry out the classification as required, for example need regular maintenance, urgent need to handle etc. regular maintenance also can be subdivided into according to needs and carry out regular maintenance according to different maintenance cycle.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The present application is directed to methods, apparatus (systems), and computer program products according to embodiments of the application wherein instructions, which execute via a flowchart and/or a processor of the computer program product, create means for implementing functions specified in the flowchart and/or block diagram block or blocks. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. The utility model provides an explosion-proof box of intelligent cable with pressure and gas monitoring function, its characterized in that, includes explosion-proof box body (1), be equipped with pressure sensor (2), gaseous sensing subassembly (3), monitoring information sending module (4) and battery (5) that detect in explosion-proof box body (1), pressure sensor (2), the output of gaseous sensing subassembly (3) that detects link to each other with monitoring information sending module (4) respectively, battery (5) link to each other with pressure sensor (2), gaseous sensing subassembly (3), the power end of monitoring information sending module (4) respectively, gaseous sensing subassembly (3) that detect possesses at least one kind of gaseous detection function in hydrogen chloride, benzene, the acetaldehyde three.
2. The intelligent cable explosion-proof box with the pressure and gas monitoring function according to claim 1, wherein the explosion-proof box body (1) is of a sleeve structure, the middle part of the explosion-proof box body protrudes transversely to form a mounting cavity (10) inside the explosion-proof box body, and the pressure sensor (2), the gas detection sensing assembly (3), the monitoring information sending module (4) and the battery (5) are mounted in the mounting cavity (10).
3. An intelligent cable explosion-proof box with pressure and gas monitoring function according to claim 2, wherein the outer wall of the part of the explosion-proof box body (1) which protrudes transversely is provided with an energy leakage hole (11).
4. A smart cable flameproof box with pressure and gas monitoring capabilities according to claim 2, characterized in that the flameproof box body (1) is made of glass fiber reinforced plastic.
5. An intelligent cable explosion-proof system with pressure and gas monitoring function, which is characterized by comprising a communication relay device and the intelligent cable explosion-proof box with pressure and gas monitoring function of any one of claims 1 to 4, wherein a monitoring information sending module (4) of the intelligent cable explosion-proof box is connected with a network through the communication relay device.
6. A smart cable explosion-proof system with pressure and gas monitoring capabilities as recited in claim 5, wherein said communication relay device comprises a LoRaWAN communication relay module and a battery module connected to each other.
7. A method for applying the intelligent cable explosion-proof box with the pressure and gas monitoring function as claimed in any one of claims 1 to 4, is characterized by comprising the following implementation steps: the monitoring information sending module (4) collects pressure data detected by the pressure sensor (2) and gas data detected by the gas detection sensing assembly (3) at regular time, and sends the gas data and the pressure data to a designated management and control background if the gas data or the pressure data exceed a preset threshold.
8. The method for applying a smart cable flameproof box with pressure and gas monitoring function according to claim 7, characterized in that the sending of gas data and pressure data to the designated management background further comprises: and the management and control background generates alarm information and pushes the alarm information to terminal equipment of operation and maintenance personnel in the station so as to remind the user of inquiring or solving the hidden trouble.
9. The application method of the intelligent cable explosion-proof box with the pressure and gas monitoring function according to claim 8, wherein the gas detection sensing assembly (3) is a sensor with three gas detection functions of hydrogen chloride, benzene and acetaldehyde, the alarm information generated by the control background further includes a cable intermediate joint state detected according to gas data and pressure data, the gas data includes three gas content data of hydrogen chloride, benzene and acetaldehyde, and the step of detecting the cable intermediate joint state according to the pressure data and the pressure data includes: and adopting a pre-trained machine learning classification model to obtain the states of the cable intermediate joints corresponding to the input data of the pressure, the hydrogen chloride content, the benzene content and the acetaldehyde content, wherein the machine learning classification model is pre-trained to contain the mapping relation among the four input data of the pressure, the hydrogen chloride content, the benzene content and the acetaldehyde content and the states of the corresponding cable intermediate joints.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010251826.0A CN111351527A (en) | 2020-04-01 | 2020-04-01 | Intelligent cable explosion-proof box with pressure and gas monitoring function, system and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010251826.0A CN111351527A (en) | 2020-04-01 | 2020-04-01 | Intelligent cable explosion-proof box with pressure and gas monitoring function, system and application method thereof |
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| CN202010251826.0A Pending CN111351527A (en) | 2020-04-01 | 2020-04-01 | Intelligent cable explosion-proof box with pressure and gas monitoring function, system and application method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113252114A (en) * | 2021-06-11 | 2021-08-13 | 中国煤炭科工集团太原研究院有限公司 | Method and device for monitoring internal environment state of explosion-proof electrical equipment |
| CN113296032A (en) * | 2021-05-12 | 2021-08-24 | 广东新电电力科技有限公司 | Operation monitoring method and device for cable joint flexible explosion-proof device |
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Application publication date: 20200630 |