CN211232436U - Real-time safety monitoring and diagnosing system for submarine pipeline - Google Patents
Real-time safety monitoring and diagnosing system for submarine pipeline Download PDFInfo
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- CN211232436U CN211232436U CN201922231812.8U CN201922231812U CN211232436U CN 211232436 U CN211232436 U CN 211232436U CN 201922231812 U CN201922231812 U CN 201922231812U CN 211232436 U CN211232436 U CN 211232436U
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Abstract
The utility model provides a submarine pipeline real-time safety monitoring and diagnostic system for the boats and ships that the leakage condition of monitoring submarine pipeline and be close to submarine pipeline, set up the multiunit sound sensor on the optical cable including data acquisition analytic system and interval, every group sound sensor includes a plurality of interval for the first sound sensor of L1 and a plurality of interval for the second sound sensor of L2, wherein L1 is not more than the half-wavelength of boats and ships sound, L2 is greater than L1; the optical cable is laid along the submarine pipeline, a gap is reserved between the optical cable and the submarine pipeline, and the data acquisition and analysis system is connected with the optical cable. The utility model discloses an useful part lies in, lays the optical cable and installs sound sensor along current submarine pipeline, can not cause the damage to current submarine pipeline, through the first sound sensor of intensive range in addition, can fix a position, test the speed and track invading boats and ships, is assisted with sparse arrangement's second sound sensor simultaneously to submarine pipeline's the leakage condition is monitored accurately.
Description
Technical Field
The utility model belongs to the technical field of subsea equipment, especially, relate to a submarine pipeline real-time safety monitoring and diagnostic system.
Background
Since the first submarine pipeline is built in Bohai sea in 1985, submarine pipelines with the total length exceeding 6202km are paved in the sea area of China in 2016, and the submarine pipelines comprise petroleum and natural gas transportation, gas-liquid mixed transportation and the like. Because the submarine environment is complex, submarine pipelines are prone to aging and corrosion, and leakage occurs. In order to prevent economic, environmental and personal hazards caused by leakage of the submarine pipeline, the leakage condition of the submarine pipeline needs to be monitored in time, and a ship operating close to the submarine pipeline needs to be monitored and positioned, but due to factors such as tides, sea waves, gusts, typhoons, ships, marine organisms, corrosiveness, shallow gas, ocean current scouring and variable pipeline water depth in the sea, a lot of challenges are brought to submarine pipeline monitoring. At present, the leakage condition of a pipeline is mainly monitored by adopting modes such as engineering geophysical prospecting, artificial diving, in-pipe monitoring and the like, and the methods have the problems of difficulty in real-time monitoring, high cost, low precision, difficulty in positioning and the like. In addition, the probability of risk occurrence of the submarine pipeline built in early years is increased due to the long-term overhaul, and when the monitoring system is arranged on the existing pipeline, the pipeline may be damaged, so that the risk of leakage is further increased, and therefore a monitoring system which is safer and has high positioning accuracy is needed.
SUMMERY OF THE UTILITY MODEL
To the above defect, the to-be-solved technical problem of the utility model is to provide a submarine pipeline real-time safety monitoring and diagnostic system, can effectively, accurately monitor current submarine pipeline and leak the condition, fix a position invading boats and ships, and can not cause the influence to current pipeline.
The utility model provides a submarine pipeline real-time safety monitoring and diagnostic system for the leak condition of monitoring submarine pipeline and be close to submarine pipeline's boats and ships, set up the multiunit sound sensor on the optical cable including data acquisition analytic system and interval, every group sound sensor includes a plurality of interval for the first sound sensor of L1 and a plurality of interval for the second sound sensor of L2, wherein L1 is not more than the half-wavelength of boats and ships sound, L2 is greater than L1; the optical cable is laid along the submarine pipeline, a gap is reserved between the optical cable and the submarine pipeline, and the data acquisition and analysis system is connected with the optical cable.
Preferably, the range of L1 is 0.1-20m, and the range of L2 is 100-500 m.
Preferably, the distance between the first sound sensor or the second sound sensor in the two adjacent groups of sound sensors is L3, and the range of L3 is 5-10 km.
Preferably, the first sound sensor and the second sound sensor are both fiber optic hydrophones.
Preferably, the data acquisition and analysis system comprises a demodulation module, an upper computer and a control center which are connected in sequence, wherein the demodulation module is connected with the optical cable.
Preferably, the control center is also in communication connection with a marine AIS system.
Preferably, the control center is further connected with an unmanned aerial vehicle system.
Preferably, a plurality of fiber bragg grating acceleration sensors are further arranged on the optical cable.
The utility model discloses an useful part lies in, lays the optical cable and installs sound sensor along current submarine pipeline, can not cause the damage to current submarine pipeline, through the first sound sensor of intensive range in addition, can fix a position, test the speed and track invading boats and ships, is assisted with sparse arrangement's second sound sensor simultaneously to submarine pipeline's the leakage condition is monitored accurately.
Drawings
Fig. 1 is a schematic diagram of the real-time safety monitoring and diagnosing system for submarine pipeline according to the present invention.
Element number description:
11 first acoustic sensor
12 second sound sensor
2 optical cable
3 submarine pipeline
4 leakage point
5 Ship
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, the utility model provides a density monitoring system for monitoring submarine pipeline 3's the leakage condition and being close to submarine pipeline 3's boats and ships 5, this density monitoring system includes that data acquisition analytic system and interval set up the multiunit sound sensor on optical cable 2, every group sound sensor includes that a plurality of intervals are L1's first sound sensor 11 and a plurality of intervals are L2's second sound sensor 12, in concrete implementation, the invasion condition of boats and ships 5 is responsible for monitoring by a plurality of first sound sensor 11 of intensive range, fix a position boats and ships 5, test the speed and track, set up a plurality of sparse range's second sound sensor 12 simultaneously and monitor submarine pipeline 3's the leakage condition, guarantee to have at least one sound sensor can monitor the leak point 4 of pipeline. Thus L1 is no more than half the wavelength of the characteristic sound emitted by the vessel 5 and L2 is greater than L1. Preferably, L1 is in the range of 0.1-20m, and L2 is in the range of 100-500 m. The distance between the first sound sensor 11 or the second sound sensor 12 which are positioned at the same position in the two adjacent groups of sound sensors is L3, and the range of L3 is 5-10km, so that at least one group of sound sensors can detect the invading ship 5.
The optical cable 2 is laid along the submarine pipeline 3 in parallel with the submarine pipeline 3 with a gap between the optical cable 2 and the submarine pipeline 3, i.e. the optical cable 2 is laid in a submarine trench adjacent to the submarine pipeline 3 but not in contact with the submarine pipeline 3, so that the laying of the optical cable 2 does not affect the structure of the existing submarine pipeline 3. The data acquisition and analysis system is connected with the optical cable 2. When a leakage point 4 is arranged on the submarine pipeline 3, fluid in the submarine pipeline 3 enters seawater and generates sound waves, and the sound sensor receives the sound waves and transmits output signals to the data acquisition and analysis system through the optical cable 2 for processing. Preferably, the first sound sensor 11 and the second sound sensor 12 both use fiber optic hydrophones, which can convert sound signals into optical signals and transmit the optical signals through the optical cable 2, and can perform hydrophone arrays for submarine manifold facilities, so as to map a submarine sound field.
The utility model discloses a in a concrete embodiment, data acquisition and analysis system is including the demodulation module, host computer and the control center that connect gradually, and demodulation module is connected with optical cable 2. The optical signal transmitted by the optical cable 2 is demodulated by the demodulation module, and information such as frequency spectrum data of sound can be obtained. The upper computer and the control center receive, store and analyze the related signal data, so that managers can master the working condition of the system in time and transmit working instructions. Preferably, the control center can be in communication connection with the ship AIS system, and further monitors and positions the ship 5 working close to the submarine pipeline 3, so as to prevent the ship working from causing artificial damage to the submarine pipeline 3. The control center can also be connected with the unmanned aerial vehicle system, carries out operation projects such as unmanned aerial vehicle video or infrared detection.
In addition, since the light waves are directly or indirectly changed by the external environment when propagating in the optical fiber of the optical cable 2, the optical fiber can also be directly used as a vibration sensor to detect the environmental conditions at the laying place of the submarine pipeline 3 and the optical cable 2. If tidal current and waves erode soil around the submarine pipeline 3, the submarine pipeline 3 is suspended, displaced or damaged, the nearby optical cable 2 can also vibrate due to the fact that the supporting effect of the soil is lost, and the data acquisition and analysis system can accurately position an erosion occurrence part after receiving and analyzing related signals and repair the erosion occurrence part in time. Preferably, a plurality of fiber grating acceleration sensors are further arranged on the optical cable 2 to assist in monitoring the vibration condition of the submarine pipeline 3.
To sum up, the utility model discloses an useful part lies in, lays the optical cable and installs sound sensor along current submarine pipeline, can not cause the damage to current submarine pipeline, through the first sound sensor of intensive range in addition, can fix a position, test the speed and track invading boats and ships, is assisted with sparse arrangement's second sound sensor simultaneously to submarine pipeline's the leakage condition is monitored accurately.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (8)
1. A subsea pipeline real-time safety monitoring and diagnostic system for monitoring a leak in a subsea pipeline (3) and a vessel (5) near the subsea pipeline (3), comprising a data acquisition and analysis system and a plurality of sets of acoustic sensors spaced apart on a fiber optic cable (2), each set of acoustic sensors comprising a plurality of first acoustic sensors (11) spaced apart at L1 and a plurality of second acoustic sensors (12) spaced apart at L2, wherein L1 is no greater than half the wavelength of the sound of the vessel (5), and L2 is greater than L1; the optical cable (2) is laid along the submarine pipeline (3), a gap is reserved between the optical cable and the submarine pipeline (3), and the data acquisition and analysis system is connected with the optical cable (2).
2. The subsea pipeline real-time safety monitoring and diagnosis system of claim 1, wherein the range of L1 is 0.1-20m, and the range of L2 is 100-500 m.
3. The subsea pipeline real-time safety monitoring and diagnostic system according to claim 1, characterized in that the spacing between the first (11) or second (12) acoustic sensor of two adjacent sets of acoustic sensors is L3, the L3 ranging from 5-10 km.
4. The subsea pipeline real-time safety monitoring and diagnostic system according to claim 1, characterized in that the first acoustic sensor (11) and the second acoustic sensor (12) are both fiber optic hydrophones.
5. The real-time safety monitoring and diagnosing system for submarine pipelines according to claim 1, wherein the data acquisition and analysis system comprises a demodulation module, an upper computer and a control center which are connected in sequence, and the demodulation module is connected with the optical cable (2).
6. The subsea pipeline real-time safety monitoring and diagnostic system according to claim 5, wherein the control center is further communicatively connected to a marine AIS system.
7. The subsea pipeline real-time safety monitoring and diagnosis system according to claim 5, wherein the control center is further connected to a drone system.
8. The subsea pipeline real-time safety monitoring and diagnosis system according to claim 1, wherein a plurality of fiber grating acceleration sensors are further provided on the optical cable (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922231812.8U CN211232436U (en) | 2019-12-13 | 2019-12-13 | Real-time safety monitoring and diagnosing system for submarine pipeline |
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| CN201922231812.8U CN211232436U (en) | 2019-12-13 | 2019-12-13 | Real-time safety monitoring and diagnosing system for submarine pipeline |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099105A (en) * | 2020-09-08 | 2020-12-18 | 北京洛达世安电子设备有限公司 | Optical fiber fence detection system and method |
| CN113008471A (en) * | 2021-03-03 | 2021-06-22 | 徐州睿晓智能科技有限公司 | Submarine pipeline leakage monitoring test system suitable for wharf and lake water areas |
| CN113944892A (en) * | 2021-11-09 | 2022-01-18 | 北京江河惠远科技有限公司 | Automatic monitoring method and device for critical state of riverbed area muddy water for long oil transportation pipeline |
-
2019
- 2019-12-13 CN CN201922231812.8U patent/CN211232436U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099105A (en) * | 2020-09-08 | 2020-12-18 | 北京洛达世安电子设备有限公司 | Optical fiber fence detection system and method |
| CN112099105B (en) * | 2020-09-08 | 2021-09-07 | 北京洛达世安电子设备有限公司 | Optical fiber fence detection system and method |
| CN113008471A (en) * | 2021-03-03 | 2021-06-22 | 徐州睿晓智能科技有限公司 | Submarine pipeline leakage monitoring test system suitable for wharf and lake water areas |
| CN113944892A (en) * | 2021-11-09 | 2022-01-18 | 北京江河惠远科技有限公司 | Automatic monitoring method and device for critical state of riverbed area muddy water for long oil transportation pipeline |
| CN113944892B (en) * | 2021-11-09 | 2024-04-30 | 北京江河惠远科技有限公司 | Automatic monitoring method and device for mud-water critical state of riverbed area for long oil pipeline |
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Effective date of registration: 20210324 Address after: 221000 a10-3f, Xuzhou national security science and Technology Industrial Park, Lijiang Road, Xuzhou high tech Industrial Development Zone, Jiangsu Province Patentee after: Xuzhou ruixiao Intelligent Technology Co.,Ltd. Address before: Room 509, No. 560, shengxia Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai 201210 Patentee before: Shanghai Ruier Ocean Engineering Technology Co.,Ltd. |
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