CN220102890U - Oil gas pipeline leakage monitoring system - Google Patents
Oil gas pipeline leakage monitoring system Download PDFInfo
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- CN220102890U CN220102890U CN202320538462.3U CN202320538462U CN220102890U CN 220102890 U CN220102890 U CN 220102890U CN 202320538462 U CN202320538462 U CN 202320538462U CN 220102890 U CN220102890 U CN 220102890U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 56
- 238000004891 communication Methods 0.000 claims abstract description 17
- 230000003068 static effect Effects 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 5
- 230000003750 conditioning effect Effects 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000013500 data storage Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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- 238000003745 diagnosis Methods 0.000 description 1
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- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses an oil gas pipeline leakage monitoring system, which comprises: the signal acquisition equipment consists of a static pressure sensor, a dynamic pressure sensor and a flow sensor, a plurality of monitoring points are arranged along the oil gas pipeline, and the monitoring points are provided with the signal acquisition equipment; the signal conditioner is connected with the signal acquisition equipment and is used for processing the signal output by the signal acquisition equipment to obtain a pure signal; the acquisition controller is connected with the signal conditioner and used for acquiring signals processed by the signal conditioner; the leakage monitoring server is connected with the acquisition controller through communication equipment and is used for leakage monitoring of the oil and gas pipeline. The monitoring system provided by the utility model realizes high-precision real-time monitoring of oil and gas pipeline leakage, and ensures the safety of oil and gas pipeline operation.
Description
Technical Field
The utility model relates to the technical field of pipeline monitoring, in particular to an oil and gas pipeline leakage monitoring system.
Background
With the construction of pipelines, pipeline operation monitoring technology is also continuously developed, and leakage monitoring technology which is an important component of pipeline monitoring is always paid attention to by scientific and technological workers in various countries. There are a number of methods of monitoring for pipe leakage. Two general categories can be distinguished: an internal monitoring method and an external monitoring method. The internal monitoring method is expensive and cannot achieve continuous real-time monitoring. The monitoring accuracy of the external monitoring method needs to be further improved.
Disclosure of Invention
In view of the foregoing drawbacks or shortcomings of the prior art, it is desirable to provide an oil and gas pipeline leakage monitoring system that enables high-precision real-time monitoring of oil and gas pipeline leakage.
The utility model provides an oil gas pipeline leakage monitoring system, which comprises:
the signal acquisition equipment consists of a static pressure sensor, a dynamic pressure sensor and a flow sensor, wherein a plurality of monitoring points are arranged along the oil gas pipeline, and the signal acquisition equipment is installed at the monitoring points;
the signal conditioner is connected with the signal acquisition equipment and is used for processing the signal output by the signal acquisition equipment to obtain a pure signal;
the acquisition controller is connected with the signal conditioner and is used for acquiring signals processed by the signal conditioner;
and the leakage monitoring server is connected with the acquisition controller through communication equipment and is used for monitoring leakage of the oil and gas pipeline.
Further, the signal conditioner includes:
the current loop unit is electrically connected with the signal acquisition equipment and is used for converting a current signal output by the signal acquisition equipment into a voltage signal;
the first signal conditioning unit is electrically connected with the current loop unit and comprises a low-pass filter circuit and an FIR second-order active low-pass filter circuit, and is used for eliminating high-frequency interference signals of the voltage signals;
the first signal output unit is electrically connected with the first signal conditioning unit and is used for adjusting the range of the output signal of the first signal conditioning unit to +/-5V;
the first microprocessor is electrically connected with the first signal output unit;
the temperature acquisition unit is electrically connected with the first microprocessor and is used for acquiring the ambient temperature;
the first power supply unit is respectively and electrically connected with the current loop unit, the first signal conditioning unit, the first signal output unit, the temperature acquisition unit and the first microprocessor.
Further, the acquisition controller includes:
AD acquisition unit: the signal conditioner is electrically connected with the power supply and is used for collecting voltage signals;
the second signal conditioning unit is electrically connected with the AD acquisition unit and comprises a low-pass filter circuit and a chebyshev low-pass filter circuit, and is used for eliminating high-frequency interference signals of signals output by the AD acquisition unit;
the second signal output unit is electrically connected with the second signal conditioning unit and is used for adjusting the range of the output signal of the second signal conditioning unit to +/-10V;
the second microprocessor is electrically connected with the AD acquisition unit and the second signal output unit;
the NTP unit is electrically connected with the second microprocessor and has an NTP synchronous time service function;
the GPS unit is electrically connected with the second microprocessor and has a GPS positioning function and a GPS synchronous time service function;
the communication transmission unit is electrically connected with the second microprocessor and comprises RS485 and RJ45, and is used for controlling and debugging instructions and transmitting signals to communication equipment through a network port;
the data storage unit is electrically connected with the second microprocessor and is used for storing data;
the second power supply unit is respectively and electrically connected with the AD acquisition unit, the second signal conditioning unit, the second signal output unit, the second microprocessor, the NTP unit, the GPS unit, the communication transmission unit and the data storage unit.
Further, the communication equipment is a 4G/5G router.
Compared with the prior art, the utility model has the beneficial effects that:
the monitoring system consists of signal acquisition equipment, a signal conditioner, an acquisition controller and a leakage monitoring server. A plurality of monitoring points are configured on the oil gas pipeline, and each monitoring point is provided with signal acquisition equipment; and collecting static pressure data, dynamic pressure data and flow data of each monitoring point position of the oil and gas pipeline through signal collecting equipment. By combining static pressure monitoring, dynamic pressure monitoring and flow monitoring, whether the oil gas pipeline leaks or not is judged, and the problem of misjudgment caused by fluctuation of a pipeline transmission medium is avoided. The utility model realizes high-precision real-time monitoring of oil and gas pipeline leakage and ensures the safety of oil and gas pipeline operation.
It should be understood that the description in this summary is not intended to limit the critical or essential features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model. Other features of the present utility model will become apparent from the description that follows.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a system for monitoring oil and gas pipeline leakage;
FIG. 2 is a schematic diagram of the structure of the signal conditioning phase;
fig. 3 is a schematic diagram of the structure of the acquisition controller.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 3, an embodiment of the present utility model further provides an oil and gas pipeline leakage monitoring system, including:
the signal acquisition equipment consists of a static pressure sensor, a dynamic pressure sensor and a flow sensor, a plurality of monitoring points are arranged along the oil gas pipeline, and the monitoring points are provided with the signal acquisition equipment;
the signal conditioner is connected with the signal acquisition equipment and is used for processing the signal output by the signal acquisition equipment to obtain a pure signal;
the acquisition controller is connected with the signal conditioner and used for acquiring signals processed by the signal conditioner;
the leakage monitoring server is connected with the acquisition controller through communication equipment and is used for leakage monitoring of the oil and gas pipeline.
In this embodiment, when the oil and gas pipeline breaks and leaks, the static pressure of the leakage point suddenly drops, and the leakage point propagates upwards and downwards. Due to the waveguide effect of the pipe wall, the static pressure is less attenuated in the propagation process, and the static pressure can propagate for a quite long distance. Thus, the static pressure sensor can monitor the moment when the static pressure reaches the measurement point. The position of the leak can be determined by the time difference between the static pressure passing through the upstream and downstream measuring points and the propagation velocity of the static pressure in the hydrocarbon pipeline.
The liquid of the leakage point rubs with the pipe wall to generate sound, wherein the low-frequency sound can be transmitted in the medium for a long distance, so that dynamic pressure sensors are arranged on the upper and the lower stream of the pipeline to obtain low-frequency sound waves, and the leakage judgment is carried out by combining with static pressure, so that the accuracy of the leakage identification is improved.
Meanwhile, in order to improve the sensitivity of the leakage monitoring system, a flow sensor is arranged on the oil gas pipeline to acquire a flow signal so as to more accurately judge the leakage of the oil gas pipeline.
The monitoring system provided by the utility model realizes high-precision real-time monitoring of oil and gas pipeline leakage, and ensures the safety of oil and gas pipeline operation.
In a preferred embodiment, as shown in fig. 2, the signal conditioner comprises:
the current loop unit is electrically connected with the signal acquisition equipment and is used for converting a current signal output by the signal acquisition equipment into a voltage signal;
the first signal conditioning unit is electrically connected with the current loop unit and comprises a low-pass filter circuit and an FIR second-order active low-pass filter circuit, and is used for eliminating high-frequency interference signals of voltage signals;
the first signal output unit is electrically connected with the first signal conditioning unit and is used for adjusting the range of the output signal of the first signal conditioning unit to +/-5V;
the first microprocessor is electrically connected with the first signal output unit;
the temperature acquisition unit is electrically connected with the first microprocessor and is used for acquiring the ambient temperature;
the first power supply unit is electrically connected with the current loop unit, the first signal conditioning unit, the first signal output unit, the temperature acquisition unit and the first microprocessor respectively.
In the embodiment, the data acquired by the signal acquisition equipment are processed through the signal conditioner, the high-frequency interference signals are removed, the pure signals suitable for acquisition are obtained, and the accuracy of leakage point monitoring is ensured.
In a preferred embodiment, as shown in FIG. 3, the acquisition controller comprises:
AD acquisition unit: the signal conditioner is electrically connected with the power supply and is used for collecting voltage signals;
the second signal conditioning unit is electrically connected with the AD acquisition unit and comprises a low-pass filter circuit and a chebyshev low-pass filter circuit, and is used for eliminating high-frequency interference signals of signals output by the AD acquisition unit;
the second signal output unit is electrically connected with the second signal conditioning unit and is used for adjusting the range of the output signal of the second signal conditioning unit to +/-10V;
the second microprocessor is respectively and electrically connected with the AD acquisition unit and the second signal output unit;
the NTP unit is electrically connected with the second microprocessor and has an NTP synchronous time service function;
the GPS unit is electrically connected with the second microprocessor and has a GPS positioning function and a GPS synchronous time service function;
the communication transmission unit is electrically connected with the second microprocessor and comprises RS485 and RJ45, and is used for controlling and debugging instructions and transmitting signals to communication equipment through a network port;
the data storage unit is electrically connected with the second microprocessor and is used for storing data;
the second power supply unit is respectively and electrically connected with the AD acquisition unit, the second signal conditioning unit, the second signal output unit, the second microprocessor, the NTP unit, the GPS unit, the communication transmission unit and the data storage unit.
In this embodiment, the acquisition controller is a high-speed data acquisition device designed based on international industry standards, and includes functions of data processing, communication, time service, storage, diagnosis and the like, so that the accuracy of leakage point monitoring is ensured.
In a preferred embodiment, the communication device is a 4G/5G router.
In the description of the present specification, the terms "one embodiment," "some embodiments," and the like, mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (4)
1. An oil and gas pipeline leak monitoring system, comprising:
the signal acquisition equipment consists of a static pressure sensor, a dynamic pressure sensor and a flow sensor, wherein a plurality of monitoring points are arranged along the oil gas pipeline, and the signal acquisition equipment is installed at the monitoring points;
the signal conditioner is connected with the signal acquisition equipment and is used for processing the signal output by the signal acquisition equipment to obtain a pure signal;
the acquisition controller is connected with the signal conditioner and is used for acquiring signals processed by the signal conditioner;
and the leakage monitoring server is connected with the acquisition controller through communication equipment and is used for monitoring leakage of the oil and gas pipeline.
2. The oil and gas pipeline leak monitoring system of claim 1, wherein the signal conditioner comprises:
the current loop unit is electrically connected with the signal acquisition equipment and is used for converting a current signal output by the signal acquisition equipment into a voltage signal;
the first signal conditioning unit is electrically connected with the current loop unit and comprises a low-pass filter circuit and an FIR second-order active low-pass filter circuit, and is used for eliminating high-frequency interference signals of the voltage signals;
the first signal output unit is electrically connected with the first signal conditioning unit and is used for adjusting the range of the output signal of the first signal conditioning unit to +/-5V;
the first microprocessor is electrically connected with the first signal output unit;
the temperature acquisition unit is electrically connected with the first microprocessor and is used for acquiring the ambient temperature;
the first power supply unit is respectively and electrically connected with the current loop unit, the first signal conditioning unit, the first signal output unit, the temperature acquisition unit and the first microprocessor.
3. The oil and gas pipeline leak monitoring system of claim 1, wherein the acquisition controller comprises:
AD acquisition unit: the signal conditioner is electrically connected with the power supply and is used for collecting voltage signals;
the second signal conditioning unit is electrically connected with the AD acquisition unit and comprises a low-pass filter circuit and a chebyshev low-pass filter circuit, and is used for eliminating high-frequency interference signals of signals output by the AD acquisition unit;
the second signal output unit is electrically connected with the second signal conditioning unit and is used for adjusting the range of the output signal of the second signal conditioning unit to +/-10V;
the second microprocessor is respectively and electrically connected with the AD acquisition unit and the second signal output unit;
the NTP unit is electrically connected with the second microprocessor and has an NTP synchronous time service function;
the GPS unit is electrically connected with the second microprocessor and has a GPS positioning function and a GPS synchronous time service function;
the communication transmission unit is electrically connected with the second microprocessor and comprises RS485 and RJ45, and is used for controlling and debugging instructions and transmitting signals to communication equipment through a network port;
the data storage unit is electrically connected with the second microprocessor and is used for storing data;
the second power supply unit is respectively and electrically connected with the AD acquisition unit, the second signal conditioning unit, the second signal output unit, the second microprocessor, the NTP unit, the GPS unit, the communication transmission unit and the data storage unit.
4. The oil and gas pipeline leak monitoring system of claim 1, wherein the communication device is a 4G/5G router.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320538462.3U CN220102890U (en) | 2023-03-20 | 2023-03-20 | Oil gas pipeline leakage monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320538462.3U CN220102890U (en) | 2023-03-20 | 2023-03-20 | Oil gas pipeline leakage monitoring system |
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| Publication Number | Publication Date |
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| CN220102890U true CN220102890U (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320538462.3U Active CN220102890U (en) | 2023-03-20 | 2023-03-20 | Oil gas pipeline leakage monitoring system |
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| CN (1) | CN220102890U (en) |
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- 2023-03-20 CN CN202320538462.3U patent/CN220102890U/en active Active
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