CN110701488B - Pipeline water leakage detection device, system and method based on optical fiber humidity sensor - Google Patents
Pipeline water leakage detection device, system and method based on optical fiber humidity sensor Download PDFInfo
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- CN110701488B CN110701488B CN201910915232.2A CN201910915232A CN110701488B CN 110701488 B CN110701488 B CN 110701488B CN 201910915232 A CN201910915232 A CN 201910915232A CN 110701488 B CN110701488 B CN 110701488B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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Abstract
The invention provides an embedded type pipeline water leakage real-time detection device, a system and a method based on an optical fiber humidity sensor, the system comprises a protective cover, a protective pipe, a first optical fiber humidity sensor, a second optical fiber humidity sensor and a processor, wherein a probe of the first optical fiber humidity sensor extends out of the bottom of the protective pipe, the upper end of the first optical fiber humidity sensor is arranged in the protective cover, a probe of the second optical fiber humidity sensor penetrates through the side wall of the protective pipe, when the invention is installed, the processor judges the time sequence of the received first humidity information and the second humidity information and detects whether the pipeline leaks according to the judgment result, the system is simple and convenient, the required excavation construction surface is small, and the system can accurately detect and respectively detect the water leakage of the pipelines and is also an environmental factor.
Description
Technical Field
The invention relates to the technical field of sensor detection, in particular to a pipeline water leakage detection device, a pipeline water leakage detection system and a pipeline water leakage detection method based on an optical fiber humidity sensor.
Background
The existing real-time detection equipment for pipeline water leakage needs to install various sensors on the pipeline, and if the detection equipment is additionally arranged on the embedded pipeline, large-scale construction needs to be carried out, so that after the pipeline is exposed, relevant sensing equipment is additionally arranged on the pipeline. For the pipeline buried underground, the installation method generates a large amount of installation cost, and the regular maintenance and repair of the equipment are difficult to achieve.
The alarm device in the existing detection equipment and the sensing equipment are buried underground together, so that wireless signals are unstable, and effective data transmission and alarm cannot be realized. Some equipment adopts wired mode transmission, but has increased the construction degree of difficulty.
Disclosure of Invention
There is a need to provide an embedded pipe leakage real-time detection device based on an optical fiber humidity sensor.
It is also necessary to provide an embedded pipeline water leakage real-time detection system based on the optical fiber humidity sensor.
It is also necessary to provide an embedded pipeline water leakage real-time detection method based on the optical fiber humidity sensor.
The utility model provides an embedded pipeline real-time detection device that leaks based on optic fibre humidity transducer, includes protection casing, protecting tube, optic fibre humidity transducer, treater, the protection casing sets up in subaerial, and the protection casing is the hollow shell of rigidity, and the upper end and the protection casing of protecting tube are connected, and the lower extreme inserts to the below ground, is close to the pipeline setting, sets up the screw thread on the outer wall of protecting tube, the inside cavity that is of protecting tube, optic fibre humidity transducer's probe passes the protecting tube to stretch out from the bottom of protecting tube, optic fibre humidity transducer's upper end sets up inside the protection casing, in order being connected with the treater, in order to provide the real-time humidity information that will detect to the treater, the inside humidity limit value that prestores of treater, the treater is with above-mentioned real-time humidity.
Preferably, above-mentioned protective tube is a plurality of sections monomers, can dismantle the connection between the adjacent monomer to satisfy the demand that the different degree of depth detected.
An embedded pipeline water leakage real-time detection system based on an optical fiber humidity sensor comprises a protective cover, a protective pipe, a first optical fiber humidity sensor, a second optical fiber humidity sensor and a processor, wherein the protective cover is arranged on the ground and is a rigid hollow shell, the upper end of the protective pipe is connected with the protective cover, the lower end of the protective pipe is inserted into the ground and is close to the pipeline, threads are arranged on the outer wall of the protective pipe, a cavity is formed inside the protective pipe, a probe of the first optical fiber humidity sensor penetrates through the protective pipe and extends out of the bottom of the protective pipe, the upper end of the first optical fiber humidity sensor is arranged inside the protective cover and is connected with the processor to provide detected first real-time humidity information to the processor, a probe of the second optical fiber humidity sensor penetrates through the side wall of the protective pipe to detect external humidity information, and the upper end of the second optical fiber humidity sensor is arranged inside the, the processor compares the received first humidity information and the received second humidity information with the first humidity limit value and the second humidity limit value respectively, judges the time sequence of the first humidity information and the second humidity information, and detects whether the pipeline leakage exists according to the judgment result.
Preferably, the detection system further comprises a communication unit, a power supply unit and an alarm unit which are all connected with the processor, the communication unit, the power supply unit and the alarm unit are all arranged inside the protective cover, the power supply unit is connected with the external nearby mains supply to provide a working power supply, the communication unit sends the information received by the processor to an external terminal, and the processor sends alarm information to the alarm unit according to the judgment result and sends the alarm information to the cloud platform through the communication unit.
An embedded type pipeline water leakage real-time detection method based on an optical fiber humidity sensor comprises the following steps:
arranging a first optical fiber humidity sensor near the pipeline;
detecting the humidity information of soil below the pipeline or at a position flush with the pipeline through a first optical fiber humidity sensor, and providing the humidity information to a processor;
the processor compares the humidity information with a humidity limit value to determine whether the pipeline leaks water.
An embedded type pipeline water leakage real-time detection method based on an optical fiber humidity sensor comprises the following steps:
arranging a first optical fiber humidity sensor and a second optical fiber humidity sensor near the pipeline, wherein the height of the second optical fiber humidity sensor is higher than that of the first optical fiber humidity sensor;
detecting first humidity information of soil below the pipeline or at a position flush with the pipeline through a first optical fiber humidity sensor and providing the first humidity information to the processor, and detecting second humidity information of soil above the pipeline or at the middle upper part through a second optical fiber humidity sensor and providing the second humidity information to the processor;
the processor compares the first humidity information with a first humidity limit value, if the first humidity information exceeds the first humidity limit value, the processor records the generation time of the first humidity information, compares the second humidity information with a second humidity limit value, if the second humidity information exceeds the second humidity limit value, the processor records the generation time of the second humidity information, compares the generation time of the first humidity information with the generation time of the second humidity information, if the generation time of the first humidity information is earlier than the generation time of the second humidity information, the pipeline leakage is judged, and if the generation time of the first humidity information is later than the generation time of the second humidity information, the pipeline leakage is judged.
In the invention, during installation, a hole-opening tool is only used for excavating a long and thin deeper vertical hole near a pipeline, then the protective pipe of the device is inserted into the hole until the surface of the protective cover is flush with the ground, then soil is buried, after the device is used for a certain time, when the device needs to be taken out, the protective cover is only required to be screwed to drive the protective pipe to rotate, the thread on the pipe wall of the protective pipe rotates in the soil, and the device is pushed to rise by the reaction force provided by the soil until the protective pipe is screwed out of the ground. The structure is convenient and labor-saving when being taken out, and the excavation construction surface near the pipeline is smaller.
Drawings
Fig. 1 is a schematic diagram of an embedded pipe water leakage real-time detection device based on an optical fiber humidity sensor.
Fig. 2 is a schematic view of another embodiment of fig. 1.
Fig. 3 and 4 are a front view and a right view of the system installed near a ground pipeline.
Fig. 5 is a functional block diagram of the present system.
In the figure: the protection cover 10, the protection pipe 20, the threads 21, the first optical fiber humidity sensor 30, the second optical fiber humidity sensor 40, the processor 50, the communication unit 60, the power supply unit 70, the alarm unit 80 and the pipeline 100.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 to 5, an embodiment of the present invention provides an embedded pipe leakage real-time detection apparatus based on an optical fiber humidity sensor, including a protective cover 10, a protective pipe 20, an optical fiber humidity sensor, and a processor 50, where the protective cover 10 is disposed on the ground, the protective cover 10 is a rigid hollow housing, the upper end of the protective pipe 20 is connected to the protective cover 10, the lower end is inserted below the ground and disposed near the pipe, a thread 21 is disposed on the outer wall of the protective pipe 20, a cavity is formed inside the protective pipe 20, a probe of the optical fiber humidity sensor passes through the protective pipe 20 and extends out of the bottom of the protective pipe 20, the upper end of the optical fiber humidity sensor is disposed inside the protective cover 10 to be connected to the processor 50, so as to provide detected real-time humidity information to the processor 50, a humidity limit value is pre-stored inside the processor 50, and the processor 50 compares the real-, to judge whether the pipe leaks water.
In the invention, during installation, a hole-opening tool is only used for excavating a long and thin deeper vertical hole near a pipeline, then the protective pipe 20 of the device is inserted into the hole until the surface of the protective cover 10 is flush with the ground, then soil is buried, after the device is used for a certain time, when the device needs to be taken out, the protective cover 10 is only required to be screwed to drive the protective pipe 20 to rotate, the threads 21 on the pipe wall of the protective pipe 20 rotate in the soil, and the device is pushed to rise by the reaction force provided by the soil until the device is screwed out of the ground. The structure is convenient and labor-saving when being taken out, and the excavation construction surface near the pipeline is smaller.
Further, above-mentioned protective tube 20 is a plurality of sections monomers, can dismantle the connection between the adjacent monomer to satisfy the demand that the different degree of depth detected.
The invention also provides an embedded pipeline water leakage real-time detection system based on the optical fiber humidity sensor, which comprises a protective cover 10, a protective pipe 20, a first optical fiber humidity sensor 30, a second optical fiber humidity sensor 40 and a processor 50, wherein the protective cover 10 is arranged on the ground, the protective cover 10 is a rigid hollow shell, the upper end of the protective pipe 20 is connected with the protective cover 10, the lower end of the protective pipe 20 is inserted below the ground and is arranged close to the pipeline, the outer wall of the protective pipe 20 is provided with a thread 21, the inner part of the protective pipe 20 is a cavity, a probe of the first optical fiber humidity sensor 30 penetrates through the protective pipe 20 and extends out from the bottom of the protective pipe 20, the upper end of the first optical fiber humidity sensor 30 is arranged in the protective cover 10 to be connected with the processor 50 so as to provide the detected first real-time humidity information to the processor 50, a probe of the second optical fiber humidity sensor 40 penetrates through the, in order to detect the external humidity information, the upper end of the second optical fiber humidity sensor 40 is disposed inside the protective cover 10 to be connected to the processor 50, so as to provide the detected second real-time humidity information to the processor 50, the height of the second optical fiber humidity sensor 40 is higher than the height of the first optical fiber humidity sensor 30 (preferably, the height is higher than the middle upper portion of the pipeline 100), the first humidity limit value and the second humidity limit value are disposed inside the processor 50, the processor 50 compares the received first humidity information and the received second humidity information with the first humidity limit value and the second humidity limit value respectively, determines the time sequence of the first humidity information and the second humidity information, and detects whether the water leakage of the pipeline 100 occurs according to the determination result.
Further, the detection system further comprises a communication unit 60, a power supply unit 70 and an alarm unit 80 which are all connected with the processor 50, wherein the communication unit 60, the power supply unit 70 and the alarm unit 80 are all arranged inside the protective cover 10, the power supply unit 70 is connected with the nearby mains supply outside to provide a working power supply, the communication unit 60 sends the information received by the processor 50 to an external terminal, the processor 50 further sends alarm information to the alarm unit 80 according to the judgment result, and the alarm information is sent to the cloud platform through the communication unit 60.
The invention also provides an embedded pipeline water leakage real-time detection method based on the optical fiber humidity sensor, which comprises the following steps:
a first optical fiber humidity sensor 30 is arranged near the pipeline;
detecting humidity information of soil below the pipeline or at a position flush with the pipeline 100 through the first optical fiber humidity sensor 30 and providing the information to the processor 50;
the processor 50 compares the humidity information with the humidity limit to determine whether the pipe 100 leaks water.
The invention also provides an embedded pipeline water leakage real-time detection method based on the optical fiber humidity sensor, which comprises the following steps:
arranging a first optical fiber humidity sensor 30 and a second optical fiber humidity sensor 40 near the pipeline, wherein the height of the second optical fiber humidity sensor 40 is higher than that of the first optical fiber humidity sensor 30;
detecting first humidity information of soil below or at a position flush with the pipeline through a first optical fiber humidity sensor 30 and providing the first humidity information to a processor 50, and detecting second humidity information of soil above or at an upper middle portion of the pipeline through a second optical fiber humidity sensor 40 and providing the second humidity information to the processor 50;
the processor 50 compares the first humidity information with a first humidity limit value, if the first humidity limit value is exceeded, the processor 50 records generation time of the first humidity information, the processor 50 compares the second humidity information with a second humidity limit value, if the second humidity limit value is exceeded, the processor 50 records generation time of the second humidity information, the processor 50 compares the generation time of the first humidity information with the generation time of the second humidity information, if the generation time of the first humidity information is earlier than the generation time of the second humidity information, it is determined that the pipeline leaks, and if the generation time of the first humidity information is later than the generation time of the second humidity information, it is determined that the pipeline leaks.
When the scheme is implemented, for example, a processing unit, a first comparator, a second comparator, a first timer and a second timer may be arranged inside the processor 50, where the first comparator compares the first humidity information with the first humidity limit, if the first humidity information exceeds the first humidity limit, the soil is subject to water seepage, and at this time, the first comparator sends a timing message to the first timer, and the first timer records a time, which is a time when the first optical fiber humidity sensor 30 detects water seepage; similarly, the second comparator compares the second humidity information with the second humidity limit, if the second humidity information exceeds the second humidity limit, it indicates that water seepage occurs in the soil, at this time, the second comparator sends second timing information to the second timer, and the second timer records a time, which is the time when the second optical fiber humidity sensor 40 detects water seepage; the control unit compares the two times, judges that the pipeline leaks if the generation time of the first humidity information is earlier than that of the second humidity information, and judges that the pipeline does not leak water, such as raining, ground watering and other problems, if the generation time of the first humidity information is later than that of the second humidity information.
The pipeline is buried under the ground, when the pipeline leaks water, the water leaks from top to bottom, the first optical fiber humidity sensor 30 detects the water leakage, if the water amount is more, the water slowly diffuses upwards, and the second optical fiber humidity sensor 40 can detect the water leakage, so that the first optical fiber humidity sensor 30 detects the water leakage before the second optical fiber humidity sensor 40 detects the water leakage;
when a non-pipe leak occurs, such as rain or ground watering, water leaks downwardly from the ground, the higher-level second fiber optic humidity sensor 40 first detects the water penetration and then the first fiber optic humidity sensor 30 can detect it, so this condition is detected as a non-pipe leak.
According to the arrangement of the scheme, the pipeline leakage or external environmental factors are accurately judged according to the different directions and the time difference of the water leakage, and the sensor misdetection is avoided.
The modules or units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides an embedded pipeline real-time detection device that leaks based on optic fibre humidity transducer which characterized in that: the protection cover is arranged on the ground, the protection cover is a rigid hollow shell, the upper end of the protection pipe is connected with the protection cover, the lower end of the protection pipe is inserted into the ground and is close to the pipeline, threads are arranged on the outer wall of the protection pipe, the protection pipe is internally provided with a cavity, the optical fiber humidity sensor comprises a first optical fiber humidity sensor and a second optical fiber humidity sensor, a probe of the first optical fiber humidity sensor penetrates through the protection pipe and extends out of the bottom of the protection pipe, a probe of the second optical fiber humidity sensor penetrates through the side wall of the protection pipe, the setting height of the second optical fiber humidity sensor is higher than that of the first optical fiber humidity sensor, the upper ends of the two optical fiber humidity sensors are arranged inside the protection cover and are connected with the processor, so that detected real-time humidity information is provided to the processor, the processor pre-stores a humidity limit value, compares the real-time humidity information with the humidity limit value, and compares the time sequences of the real-time humidity information and the humidity limit value to judge whether the pipeline leakage occurs.
2. The apparatus of claim 1, wherein the apparatus comprises: the protective tube is a plurality of single bodies, and adjacent single bodies are detachably connected to meet the requirements of different depth detection.
3. The utility model provides an embedded pipeline real-time detection system that leaks based on optic fibre humidity transducer which characterized in that: the protection cover is arranged on the ground, the protection cover is a rigid hollow shell, the upper end of the protection pipe is connected with the protection cover, the lower end of the protection pipe is inserted below the ground and is close to a pipeline, threads are arranged on the outer wall of the protection pipe, a cavity is formed in the protection pipe, a probe of the first optical fiber humidity sensor penetrates through the protection pipe and extends out of the bottom of the protection pipe, the upper end of the first optical fiber humidity sensor is arranged in the protection cover and is connected with the processor to provide detected first real-time humidity information to the processor, a probe of the second optical fiber humidity sensor penetrates through the side wall of the protection pipe to detect external humidity information, the upper end of the second optical fiber humidity sensor is arranged in the protection cover and is connected with the processor to provide detected second real-time humidity information to the processor, the setting height of the second optical fiber humidity sensor is higher than that of the first optical fiber humidity sensor, a first humidity limit value and a second humidity limit value are set inside the processor, the processor compares the received first humidity information and the received second humidity information with the first humidity limit value and the second humidity limit value respectively, the time sequence of the first humidity information and the second humidity information is judged, and whether pipeline water leakage exists is detected according to the judgment result.
4. The system of claim 3, wherein the embedded pipe leakage real-time detection system based on the optical fiber humidity sensor comprises: the detection system further comprises a communication unit, a power supply unit and an alarm unit which are all connected with the processor, the communication unit, the power supply unit and the alarm unit are all arranged inside the protective cover, the power supply unit is connected with the external nearby mains supply to provide a working power supply, the communication unit sends information received by the processor to an external terminal, the processor sends alarm information to the alarm unit according to the judgment result, and sends the alarm information to the cloud platform through the communication unit.
5. An embedded type pipeline water leakage real-time detection method based on an optical fiber humidity sensor is characterized by comprising the following steps:
arranging a first optical fiber humidity sensor and a second optical fiber humidity sensor near the pipeline, wherein the height of the second optical fiber humidity sensor is higher than that of the first optical fiber humidity sensor;
detecting first humidity information of soil below the pipeline or at a position flush with the pipeline through a first optical fiber humidity sensor and providing the first humidity information to the processor, and detecting second humidity information of soil above the pipeline or at the middle upper part through a second optical fiber humidity sensor and providing the second humidity information to the processor;
the processor compares the first humidity information with a first humidity limit value, if the first humidity information exceeds the first humidity limit value, the processor records the generation time of the first humidity information, compares the second humidity information with a second humidity limit value, if the second humidity information exceeds the second humidity limit value, the processor records the generation time of the second humidity information, compares the generation time of the first humidity information with the generation time of the second humidity information, if the generation time of the first humidity information is earlier than the generation time of the second humidity information, the pipeline leakage is judged, and if the generation time of the first humidity information is later than the generation time of the second humidity information, the pipeline leakage is judged.
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| CN112963739B (en) * | 2021-02-04 | 2022-10-28 | 曹海涛 | South-to-north water diversion and water transfer system with fault self-checking function |
| CN114719896B (en) * | 2022-02-25 | 2023-04-11 | 中国电子科技集团公司第二十九研究所 | Device, method and system for monitoring environment of offshore closed space |
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