CN106996806A - Pipeline health status on-line detecting system - Google Patents
Pipeline health status on-line detecting system Download PDFInfo
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- CN106996806A CN106996806A CN201710326099.8A CN201710326099A CN106996806A CN 106996806 A CN106996806 A CN 106996806A CN 201710326099 A CN201710326099 A CN 201710326099A CN 106996806 A CN106996806 A CN 106996806A
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- pipeline
- strain
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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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- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses a kind of pipeline health status on-line detecting system, the wireless strain (FBG) demodulator and data sink that are connected including the resistance strain-gauge transducer on pipeline, with resistance strain-gauge transducer and the data processing module being connected with data sink, resistance strain-gauge transducer are pasted onto pipe surface；Wireless strain (FBG) demodulator receives the data that resistance strain-gauge transducer is transmitted, and the data are sent into data sink by data source, and the data are being transmitted to data processing module by data sink.The present invention can monitor the various important informations of pipeline in real time, and judge by its data processing module the working condition of pipeline, it is ensured that the health and safety operation of pipeline.
Description
Technical field
The present invention relates to a kind of detecting system of pipeline, and in particular to a kind of pipeline health status on-line detecting system, category
In testing techniques of equipment field.
Background technology
Pipeline is important component in the fields such as petrochemical industry, but is also a link for being easy to accident occur.Pipe
Road may bear the effect of many kinds of external force, including itself weight, fluid matasomatism pipe end thrust, wind and snow load, soil
Pressure, expand with heat and contract with cold caused thermal stress, oscillating load and earthquake disaster etc., shadow of these uncontrollable extraneous factors to pipeline
Sound can not be reflected directly；The pipeline mediums such as petrochemical industry, are much corrosive, and fact proved, the danger of metal erosion
Evil property is very universal and extremely serious, and corrosion can cause being thinned for tube wall, so as to potential safety hazard occur, cause directly or
Indirect loss.
And at present safety detection of pipelines mainly plant downtime maintenance, or after pipeline goes wrong just use one
Fixed detection method is detected to pipeline；Or alarm can only be carried out after going wrong, pipeline fortune can not be monitored in real time
The region for the leakage that state and prediction pipeline during row may occur.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of pipeline health status for above-mentioned technical problem
On-line detecting system, the parameters of monitoring pipeline in real time is carried out in conduit running, the wall thickness change of such as pipeline, pipeline exist
Real-time stress during operation etc..By these data, we can speculate the state of pipeline operationally, for example whether by soil
Whether there is crackle to produce on additional bending moment, pipeline produced by sedimentation etc., and predict the position for being likely to occur danger.
The present invention solves the technical scheme that is used of above-mentioned technical problem：
Pipeline health status on-line detecting system, including resistance strain-gauge transducer and resistance on pipeline
The connected wireless strain (FBG) demodulator of strain-gauge transducer and data sink and the data processing being connected with data sink
Module；Resistance strain-gauge transducer is in contact with pipe surface, and resistance strain-gauge transducer passes through wire and wireless strain
(FBG) demodulator is connected；The wireless strain (FBG) demodulator is placed on resistance strain-gauge transducer, and wireless strain (FBG) demodulator receives resistance
The data that formula foil gauge is transmitted, and the data are transmitted to data sink by the data source of wireless strain (FBG) demodulator, number
It is connected according to transmitter with power supply；Data sink is connected with data processing module, and data sink is by the data transfer received
Handled to data processing module.
The pipeline health status on-line detecting system of the application, passes through resistance strain-gauge transducer cooperation, transmitting
The data of collection are sent to data processing module by device by wireless strain (FBG) demodulator, pass through the disparate modules of data processing module
Analysis is calculated, and result is finally shown over the display.
Further scheme is：
Described resistance strain-gauge transducer is installed on pipe surface ring at a certain distance, each ring peace
Fill multiple resistance strain-gauge transducers.
Further scheme is：
Each resistance strain-gauge transducer is made up of three foil gauges, is in 45 ゜ angles between adjacent foil gauge.
Further scheme is：
Sensor on each ring is one group, is connected with wire with wireless strain (FBG) demodulator, and the method for connection is strain
The ridge method of piece 1/4.
Further scheme is：
The mounting means of the resistance strain-gauge transducer and pipeline is the Nian Jie mode of instantaneous solidification adhesive.
Further scheme is：
The wireless strain (FBG) demodulator transmits data with data sink by WLAN.
Further scheme is：
The data processing module includes duct thickness detection module, and pipeline is by curved situation detection module, pipeline crack inspection
Survey module.
Further scheme is：
The duct thickness detection module, is the strain data received by data sink, by technician's input pipe
Road modulus of elasticity, outer diameter tube, the real-time internal pressure data of pipeline calculate the thickness for obtaining tube wall.
Further scheme is：
The pipeline is by curved situation detection module, and when being that detection pipeline is embedded in soil, pipeline is uneven by ground settlement
When the moment of flexure that produces, the additional stress size produced according to the moment of flexure, and then judge whether pipeline can be after under the stress
Continuous work.
Further scheme is：
The pipeline crack detection module, is to determine whether that crackle is produced by stress variation trend, and then splitting
Sensor, monitoring crack spread scenarios are set up at line.
Wireless strain (FBG) demodulator is powered with signal projector by the battery carried.
The beneficial effects of the invention are as follows：
1st, the various important informations of pipeline are monitored in real time, the safety coefficient of system is improved, it is to avoid unnecessary parking inspection
Look into, use manpower and material resources sparingly；And the failure being likely to occur is predicted, processing in time, it is to avoid occur unexpected storms.
2nd, wall thickness is pushed away by the way that the method for strain measurement is counter, it is to avoid the back drop such as thrust pump surveys wall thickness to conventional ultrasonic wave
Influence, it is time saving and energy saving without the thickness measuring that stops, it is cost-effective.
3rd, by surveying pipeline strain, to monitor the change of pipeline all directions stress, it is possible to contrasted with normal value, pipe is judged
The force-bearing situation in road, and then judge whether pipeline is damaged, if there is crackle, if can be continuing with.
Brief description of the drawings
Fig. 1 is the structural representation of pipeline health status on-line detecting system；
Fig. 2 is resistance strain-gauge transducer, wireless strain (FBG) demodulator, the connection diagram of pipeline；
Fig. 3 is resistance strain-gauge transducer structural representation.
Description of reference numerals：
1-pipeline；2-resistance strain-gauge transducer；3-wireless strain (FBG) demodulator；
4-data sink；5-data processing module；6-electric lead；7- foil gauges.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in accompanying drawing 1,2, the present invention includes the resistance strain-gauge transducer 2 being arranged on pipeline 1, with resistance-strain
The connected wireless strain (FBG) demodulators 3 of chip sensing 2, data sink 4, the data processing module 5 being connected with data sink, company
The wire 6 of connecting resistance strain-gauge transducer 2 and wireless strain (FBG) demodulator 3.The resistance strain-gauge transducer 2 and pipeline 1
Mounting means be instantaneous solidification adhesive be bonded mode.The connected mode of the wire 6 and resistance strain-gauge transducer 2
For welding.The upward all resistance strain-gauge transducers 2 of pipe ring are connected with wireless strain (FBG) demodulator 3 respectively.Wireless strain
The data source of (FBG) demodulator 3 transmits data with data sink 4 by WLAN.The data that data sink 4 is received pass through
The different parameters of pipeline are obtained after the processing of data processing module 5.5 points of data processing module is duct thickness detection module, pipeline
By curved situation detection module, pipeline crack detection module.The strain data that Thickness sensitivity module is received by data sink,
The pipeline elasticity modulus of technician's input, outer diameter tube, the data such as the real-time internal pressure of pipeline, COMPREHENSIVE CALCULATING obtains the thickness of tube wall.
Pipeline is mainly detection pipeline by curved situation detection module when being embedded in soil, pipeline by ground settlement produced when uneven it is curved
Square, and then judge whether pipeline can work under the stress.Pipeline crack detection module, the module, which is mainly, to be passed through
Stress variation sets up sensor to determine whether that crackle is produced in cracks, and monitoring crack spread scenarios are made corresponding
Measure.
In the present embodiment, the number of probes on the ring of pipeline 1 can be adjusted with actual conditions.
As shown in Figure 3, each resistance strain-gauge transducer is made up of three foil gauges 7, between adjacent foil gauge
In 45° angle.
In the present embodiment, the energy of wireless strain (FBG) demodulator 3 comes from solar power generation.
In the present embodiment, data processing module 5 processing after data can obtain the thickness of pipeline, pipeline institute's bending moment and
Whether cracked on pipeline.
During practice of construction, determined to need arrangement resistance-strain chip to sense first according to the diameter of pipeline 1, length etc.
The number of device 2 and position；By position it is selected after, pipeline 1 is polished, and with instantaneous solidification adhesive by resistance-strain chip
Sensor 2 is arranged on pipeline 1, and with pipe ring upwards all resistance strain-gauge transducer 2 for one group by its with it is wireless
Strain (FBG) demodulator 3 is connected with wire 6, and packaged, it is to avoid device is contacted with pipeline environment, influences monitoring effect；Then
Data sink 4 is connected with data processing module 5, the data that data sink 4 is received are handled by data processing module 5
The different parameters of pipeline are obtained afterwards.Data processing module is divided into duct thickness detection module, and pipeline is by curved situation detection module, pipe
Road crack detection module.The strain data that Thickness sensitivity module is received by data sink, the pipeline bullet of technician's input
Property modulus, outer diameter tube, the data such as the real-time internal pressure of pipeline, COMPREHENSIVE CALCULATING obtains the thickness of tube wall.Pipeline is detected mould by curved situation
Block is mainly detection pipeline when being embedded in soil, the moment of flexure that pipeline is produced by ground settlement when uneven, and then judges that pipeline exists
Whether can be worked under the stress.Pipeline crack detection module, the module mainly judged by stress variation be
It is no to have crackle generation, and then sensor is set up in cracks, monitoring crack spread scenarios make corresponding measure.The present invention is installed
Simply, the degree of accuracy is high, but requires higher to data treatment people.
For more detailed description technical scheme, illustrated below with a more specifically detection example.It is false
If a pipeline, outer diameter tube D=273mm, thickness t=13mm, elastic modulus E=2.06*105MPa, Poisson's ratio μ=0.3,
Internal pressure is born for P=0.7MPa, it is assumed that it is 30 μ ε by formula to measure the strain on the ring at this Wherein σz=0, t=12.52mm is obtained, and original thickness is 13mm.When conduit running, if
Only by internal pressure, then ring and the stress of radial direction are only had on pipeline, the stress very little on remaining direction, if detecting other
The appearance of stress on direction, or strain value there is situation about diminishing or be negative value (only by during internal pressure strain be stretching strain,
For on the occasion of), then have moment of flexure occur or crackle occur, if strain is excessive, need site inspection.(sentence at this to be qualitative
It is disconnected).If live ultrasound detection needs further to monitor situation at this to there is micro-crack.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall within this practicality hair
In the protection domain of bright scheme.
Claims (10)
1. pipeline health status on-line detecting system, it is characterised in that：Including the resistance-strain chip sensing on pipeline
Device, the wireless strain (FBG) demodulator being connected with resistance strain-gauge transducer, and data sink and it is connected with data sink
Data processing module.
2. pipeline health status on-line detecting system according to claim 1, it is characterised in that：
Described resistance strain-gauge transducer is installed on pipe surface ring at a certain distance, and each ring is installed many
Individual resistance strain-gauge transducer.
3. pipeline health status on-line detecting system according to claim 2, it is characterised in that：
Described resistance strain-gauge transducer is made up of three foil gauges, is in 45 ゜ angles between adjacent foil gauge.
4. pipeline health status on-line detecting system according to claim 3, it is characterised in that：
Sensor on each ring is one group, is connected with wire with wireless strain (FBG) demodulator, and the method for connection is foil gauge 1/4
Ridge method.
5. the pipeline health status on-line detecting system according to Claims 1-4 any claim, it is characterised in that：
The mounting means of the resistance strain-gauge transducer and pipeline is the Nian Jie mode of instantaneous solidification adhesive.
6. pipeline health status on-line detecting system according to claim 1, it is characterised in that：
The wireless strain (FBG) demodulator transmits data with data sink by WLAN.
7. pipeline health status on-line detecting system according to claim 1, it is characterised in that：
The data processing module includes duct thickness detection module, and pipeline is by curved situation detection module, pipeline crack detection mould
Block.
8. pipeline health status on-line detecting system according to claim 7, it is characterised in that：
The duct thickness detection module, is the strain data received by data sink, by technician's input channel bullet
Property modulus, outer diameter tube, the real-time internal pressure data of pipeline calculate and obtain the thickness of tube wall.
9. pipeline health status on-line detecting system according to claim 7, it is characterised in that：
The pipeline when being that detection pipeline is embedded in soil, is produced by curved situation detection module when pipeline is by ground settlement inequality
Raw moment of flexure, the additional stress size produced according to the moment of flexure, and then judge whether pipeline can continue work under the stress
Make.
10. pipeline health status on-line detecting system according to claim 7, it is characterised in that：
The pipeline crack detection module, is to determine whether that crackle is produced by stress variation trend, and then in cracks
Set up sensor, monitoring crack spread scenarios.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326099.8A CN106996806A (en) | 2017-05-10 | 2017-05-10 | Pipeline health status on-line detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326099.8A CN106996806A (en) | 2017-05-10 | 2017-05-10 | Pipeline health status on-line detecting system |
Publications (1)
| Publication Number | Publication Date |
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| CN106996806A true CN106996806A (en) | 2017-08-01 |
Family
ID=59435433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710326099.8A Pending CN106996806A (en) | 2017-05-10 | 2017-05-10 | Pipeline health status on-line detecting system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727055A (en) * | 2017-10-13 | 2018-02-23 | 河南理工大学 | A kind of gas pumping tube lifetime detecting system based on foil gauge |
| CN109029578A (en) * | 2018-08-09 | 2018-12-18 | 北京建筑大学 | A kind of feedwater piping safe operation monitoring system and method |
| CN109489735A (en) * | 2018-12-30 | 2019-03-19 | 江苏恒丰波纹管有限公司 | Pipeline compensator intelligent measurement and monitoring system |
| CN109655114A (en) * | 2019-02-25 | 2019-04-19 | 吉林建筑大学 | Urban Underground piping lane monitors system and its monitoring method |
| CN109900199A (en) * | 2019-03-25 | 2019-06-18 | 西安电子科技大学 | A kind of bending sensor structure and method for pipeline deformation detection |
| CN110398306A (en) * | 2019-07-08 | 2019-11-01 | 华电电力科学研究院有限公司 | A kind of thermal power plant pipe stress Decoupling Analysis system and analysis method |
| CN110715175A (en) * | 2019-10-25 | 2020-01-21 | 兰州交通大学 | A intelligent monitoring oil and gas pipeline for frozen soil district |
| CN111022933A (en) * | 2019-12-31 | 2020-04-17 | 西南交通大学 | In-service pipeline girth weld defect monitoring system |
| CN112924061A (en) * | 2021-01-29 | 2021-06-08 | 华南理工大学 | Wireless real-time monitoring system and method for non-uniform settlement stress of natural gas pipeline |
| CN113236985A (en) * | 2021-06-11 | 2021-08-10 | 北京市劳动保护科学研究所 | Fluid pipeline leakage online monitoring and positioning device and control method thereof |
| CN114413742A (en) * | 2022-01-12 | 2022-04-29 | 国家石油天然气管网集团有限公司 | Measuring system and method for environmental load of buried large-diameter oil and gas pipeline |
| CN114777988A (en) * | 2022-04-21 | 2022-07-22 | 天津大学 | Method and equipment for detecting internal pressure of metal pipeline by using strain gauge and storage medium |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727055A (en) * | 2017-10-13 | 2018-02-23 | 河南理工大学 | A kind of gas pumping tube lifetime detecting system based on foil gauge |
| CN109029578A (en) * | 2018-08-09 | 2018-12-18 | 北京建筑大学 | A kind of feedwater piping safe operation monitoring system and method |
| CN109489735A (en) * | 2018-12-30 | 2019-03-19 | 江苏恒丰波纹管有限公司 | Pipeline compensator intelligent measurement and monitoring system |
| CN109655114A (en) * | 2019-02-25 | 2019-04-19 | 吉林建筑大学 | Urban Underground piping lane monitors system and its monitoring method |
| CN109900199A (en) * | 2019-03-25 | 2019-06-18 | 西安电子科技大学 | A kind of bending sensor structure and method for pipeline deformation detection |
| CN110398306B (en) * | 2019-07-08 | 2024-05-07 | 华电电力科学研究院有限公司 | Thermal power plant pipeline stress decoupling analysis system and analysis method |
| CN110398306A (en) * | 2019-07-08 | 2019-11-01 | 华电电力科学研究院有限公司 | A kind of thermal power plant pipe stress Decoupling Analysis system and analysis method |
| CN110715175A (en) * | 2019-10-25 | 2020-01-21 | 兰州交通大学 | A intelligent monitoring oil and gas pipeline for frozen soil district |
| CN111022933A (en) * | 2019-12-31 | 2020-04-17 | 西南交通大学 | In-service pipeline girth weld defect monitoring system |
| CN112924061A (en) * | 2021-01-29 | 2021-06-08 | 华南理工大学 | Wireless real-time monitoring system and method for non-uniform settlement stress of natural gas pipeline |
| CN113236985A (en) * | 2021-06-11 | 2021-08-10 | 北京市劳动保护科学研究所 | Fluid pipeline leakage online monitoring and positioning device and control method thereof |
| CN113236985B (en) * | 2021-06-11 | 2022-04-26 | 北京市科学技术研究院城市安全与环境科学研究所(北京市劳动保护科学研究所) | Fluid pipeline leakage online monitoring and positioning device and control method thereof |
| CN114413742A (en) * | 2022-01-12 | 2022-04-29 | 国家石油天然气管网集团有限公司 | Measuring system and method for environmental load of buried large-diameter oil and gas pipeline |
| CN114777988A (en) * | 2022-04-21 | 2022-07-22 | 天津大学 | Method and equipment for detecting internal pressure of metal pipeline by using strain gauge and storage medium |
| CN114777988B (en) * | 2022-04-21 | 2024-03-22 | 天津大学 | Method, apparatus and storage medium for detecting internal pressure of metal pipe using strain gauge |
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