CN110146591A - A kind of transient electromagnetic defect of pipeline scanning equipment that magnetic field focuses - Google Patents
A kind of transient electromagnetic defect of pipeline scanning equipment that magnetic field focuses Download PDFInfo
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- CN110146591A CN110146591A CN201910492178.5A CN201910492178A CN110146591A CN 110146591 A CN110146591 A CN 110146591A CN 201910492178 A CN201910492178 A CN 201910492178A CN 110146591 A CN110146591 A CN 110146591A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9006—Details, e.g. in the structure or functioning of sensors
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Abstract
The present invention discloses a kind of transient electromagnetic defect of pipeline scanning equipment that magnetic field focuses, including several probe, transient electromagnetic equipment and data processing terminals, the probe includes input terminal and output end, and the transient electromagnetic equipment is connect with the input terminal of the probe, the output end of probe and data processing terminal respectively；Wherein, several probes is are connected in series or are connected in parallel, and the probe for being connected in series or being connected in parallel is circular arrangement, and the bottom of the probe and the tube contacts position are arcwall face；The purpose that the present apparatus can be realized the fast checking to active service pipeline internal flaw, efficiently position corrosion abnormal position.
Description
Technical field
The present invention relates to chemical industry gathering line fault detection technique fields, and in particular to a kind of transient electromagnetic that magnetic field focuses
Defect of pipeline scanning equipment.
Background technique
In basic chemical industry and oil refining device operational process, to the pipeline wall thickness reduction state of emphasis high corrosion risk into
Row monitoring is very necessary, is generally used traditional sonigauge and carries out spot thickness measurement.
Traditional spot thickness measurement system, dependence is relevant risk standard and expertise reconnaissance, and it is multiple not adapt to scene
Miscellaneous changeable environment often results in missing inspection or can not detect the region of defect most serious, and drawback is more.Sonigauge is fixed
The problem of what point thickness measuring solved is residual wall thickness data accurate (assessment residue is emphasized), but can not solve to detect the standard for position of layouting
True property.Existing transient electromagnetic method can be realized the impulse eddy current scanning of certain wall thickness, realize the mesh that defective locations quickly position
's.But quick penetration is difficult to realize to the pipeline that clad is thicker and wall thickness is thicker, it needs using means such as reduction frequencies
The problem of being just able to achieve the positioning of defect, quickly positioning defective locations it is impossible to meet impulse eddy current.
In view of technical problem of the existing technology, there is an urgent need to a kind of applications by focusing function, realize to cladding
The biggish pipeline fast checking of the thicker and pipe wall thickness of layer, the purpose for positioning defect, to solve relatively thick Scanning speed
Relatively slowly, the problems such as accuracy rate is not high.
Summary of the invention
In view of this, the purpose of the present invention is to provide the transient electromagnetic defect of pipeline scanning equipment that a kind of magnetic field focuses,
Including several probe, transient electromagnetic equipment and data processing terminals, the probe includes input terminal and output end, the transition
Electromagnetic equipment is connect with the input terminal of the probe, the output end of probe and data processing terminal respectively；Wherein, several are popped one's head in
To be connected in series or being connected in parallel, the probe for being connected in series or being connected in parallel is circular arrangement, and the bottom of the probe and institute
Stating tube contacts position is arcwall face.
When the probe is connected, the output end of one of them probe connects the input terminal of another probe, another
The output end of probe connect with the transient electromagnetic equipment and forms ring-shaped emission.
When the probe is in parallel, several, which are popped one's head in, shares an output end and input terminal and transient electromagnetic equipment company
It connects, while emitting excitation pulse vortex.
Several probes can be individually transmitting signal and receive signal and connect with the transient electromagnetic equipment.
The probe includes transmitting probe and receiving transducer, wherein the transmitting probe is provided with several, the reception
Probe is connect with several transmitting probes and transient electromagnetic equipment respectively.
The transmitting probe is uniformly distributed centered on receiving transducer.
The transmitting probe centered on receiving transducer equal cloth length in 40mm-500mm.
The quantity of probe is 2-6.
The bottom of the probe and the tube contacts position are that the diameter of arcwall face is 30-600mm.
It is connected between the probe and the transient electromagnetic equipment using cable.
Compared with prior art, the beneficial effects of the present invention are: probe is formed different by series connection and two kinds of forms in parallel
The type of focusing, the purpose realized the biggish pipeline fast checking of and pipe wall thickness thicker to clad, position defect, thus
Solve the problems such as relatively thick Scanning speed is slower, and accuracy rate is not high；It is relatively high that probe is able to detect wall thickness value when in parallel
Pipeline；Series connection is able to detect the relatively small pipeline wall thickness of wall thickness value, and detection range is in 2-30mm, tandem working fast speed,
It can satisfy the purpose of fast checking；Meanwhile can closely to be connected with the clad outside pipeline or pipeline convenient for probe, institute
Using the series connection or the probe being connected in parallel as circular arrangement, and the bottom of the probe is with the tube contacts position
Arcwall face.
Detailed description of the invention
Fig. 1 show the structure of transient electromagnetic defect of pipeline scanning equipment of the invention；
Fig. 2 show the structural schematic diagram of probe and attachment base of the invention；
Fig. 3 show probe cascaded structure schematic diagram of the invention；
Fig. 4 show probe parallel-connection structure schematic diagram of the invention；
Fig. 5 show the mounting structure schematic diagram of transmitting probe and receiving transducer of the invention.
In attached drawing: 1 be probe, 2 be transient electromagnetic equipment, 3 be data processing terminal, 4 be attachment base, 11 be transmitting visit
Head, 12 are receiving transducers.
Specific embodiment
Below in conjunction with specific embodiment, invention is further described in detail.It should be appreciated that described herein specific
Embodiment is only used to explain the present invention, is not intended to limit the present invention.
As shown in Figs. 1-5, the transient electromagnetic defect of pipeline scanning equipment that a kind of magnetic field focuses, including several probe 1, wink
Power transformation magnetic machine 2 and data processing terminal 3, the probe 1 includes input terminal and output end, and the transient electromagnetic equipment 2 is distinguished
It is connect with the input terminal of the probe, the output end of probe and data processing terminal 3；Wherein, several probes are series connection
Or be connected in parallel, the probe for being connected in series or being connected in parallel be circular arrangement, and it is described probe 1 bottom and the tube contacts
Position is arcwall face.Probe forms the different types of focusing by series connection and two kinds of forms in parallel, realize it is thicker to clad with
And the biggish pipeline fast checking of pipe wall thickness, the purpose of defect is positioned, so that it is slower to solve relatively thick Scanning speed, accurately
The problems such as rate is not high；Probe is able to detect wall thickness value relatively high pipeline when in parallel, 2-50mm, but relative to tandem working
Speed is relatively slow；Series connection is able to detect the relatively small pipeline wall thickness of wall thickness value, and detection range is in 2-30mm, tandem working speed
Degree is very fast, can satisfy the purpose of fast checking；Meanwhile for convenient for probe can be close with the clad outside pipeline or pipeline
Connection, so the series connection or the probe being connected in parallel are circular arrangement, and the bottom of the probe 1 connects with the pipeline
Contact portion position is arcwall face, and in the present embodiment, the probe 1 is mounted on attachment base 4, attachment base 4 and tube contacts position
For arcwall face.
In the process of work, probe cooperation transient electromagnetic equipment can be realized quickly sweeping to active service pipeline internal flaw
It looks into, the purpose that efficiently abnormal position is corroded in positioning；Probe 1 receives the electromagnetic pulse signal that transient electromagnetic equipment 2 emits first, so
It is reacted on the clad outside pipeline or pipeline by the transmitting of probe afterwards, for defective part, probe can generate one
Voltage signal, voltage signal are sent to transient electromagnetic equipment 2, and transient electromagnetic equipment 2 receives voltage signal, and voltage signal is sent out
It is raw that the scanning for obtaining wall thickness value, and then completing defect is parsed to data processing terminal.
In the above-described embodiments, the power in magnetic field of popping one's head in is adjusted according to the variation of voltage, the range that voltage is adjusted
Biggish inductance can be generated in the coil of probe when voltage increases for 2v to 24V, and inductance is the pass for measuring magnetic field
Bond parameter, so inductance is bigger, then magnetic field ability is stronger, and the pipeline wall thickness that can be detected is bigger, in use, root
The ability that voltage increases probe detection is adjusted according to wall thickness value.
When 1 series connection of probe, the output end of one of them probe connects the input terminal of another probe, another
The output end of probe connect with the transient electromagnetic equipment 2 and forms ring-shaped emission；The voltage signal fed back of popping one's head in then leads to
Transient electromagnetic equipment 2 is crossed to be received.
When the probe is in parallel, several, which are popped one's head in, shares an output end and input terminal and the transient electromagnetic equipment 2 company
It connects, while emitting excitation pulse vortex, the voltage signal fed back of popping one's head in is received by transient electromagnetic equipment 2.
In the transmitting of above-mentioned probe serial or parallel connection, several probes 1 can be individually transmitting signal and receive signal simultaneously
It is connect with the transient electromagnetic equipment 2.
In the transmitting of above-mentioned probe serial or parallel connection, the probe 1 includes transmitting probe 11 and receiving transducer 12, wherein
The transmitting probe 11 is provided with several, the receiving transducer 12 respectively with several transmitting probes 11 and transient electromagnetic equipment
2 connections, wherein the transmitting probe 11 is uniformly distributed centered on receiving transducer 12；The transmitting probe 11 is with receiving transducer 12
The equal cloth length in center is in 40mm-500mm.
In the above-described embodiments, the quantity of the probe is 2-6, by different number, different structure, different location
Probe variation, can be realized different focusing effects, enable adaptation to different pipeline wall thickness values, meet caliber wall thickness
The detection of 2-50mm.
It is 30-600mm that the bottom and the tube contacts position of the probe 1, which are the diameter of arcwall face, enables probe 1
Clad outside enough and pipeline or pipeline closely connects.
Meanwhile the stability in order to guarantee transmission, connected between the probe 1 and the transient electromagnetic equipment 2 using cable
It connects.
At work, due to needing to be motivated by pulse voltage electric current, so probe 1 will appear at work
The phenomenon that expansion, in order to avoid probe 1 between due to expansion wear the phenomenon that, pop one's head in 1 on encapsulating flexible glue (in attached drawing not
Show), flexible glue can play the role of fixed simultaneously and buffer, and protect the service life of each probe and device.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. the transient electromagnetic defect of pipeline scanning equipment that a kind of magnetic field focuses, it is characterised in that: including several pop one's head in (1), wink
Power transformation magnetic machine (2) and data processing terminal (3), the probe (1) includes input terminal and output end, the transient electromagnetic equipment
(2) it is connect respectively with the input terminal of the probe, the output end of probe and data processing terminal (3)；Wherein, several probes are
Be connected in series or be connected in parallel, the probe for being connected in series or being connected in parallel be circular arrangement, and it is described probe (1) bottom and institute
Stating tube contacts position is arcwall face.
2. the transient electromagnetic defect of pipeline scanning equipment that magnetic field according to claim 1 focuses, it is characterised in that: the spy
When head (1) series connection, the output end of one of them probe connects the input terminal of another probe, the output end of another probe
It is connect with the transient electromagnetic equipment (2) and forms ring-shaped emission.
3. the transient electromagnetic defect of pipeline scanning equipment that magnetic field according to claim 1 focuses, it is characterised in that: the spy
When head (1) is in parallel, several probes share an output end and input terminal is connect with the transient electromagnetic equipment (2), send out simultaneously
Penetrate excitation pulse vortex.
4. the transient electromagnetic defect of pipeline scanning equipment that magnetic field according to claim 1 to 3 focuses, feature
Be: several probes (1) can be individually transmitting signal and receive signal and connect with the transient electromagnetic equipment (2).
5. the transient electromagnetic defect of pipeline scanning equipment that magnetic field according to claim 1 to 3 focuses, feature
Be: the probe (1) includes transmitting probe (11) and receiving transducer (12), wherein the transmitting probe (11) is if be provided with
Dry, the receiving transducer (12) connect with several transmitting probes (11) and transient electromagnetic equipment (2) respectively.
6. the transient electromagnetic defect of pipeline scanning equipment that magnetic field according to claim 5 focuses, it is characterised in that: the hair
It is uniformly distributed centered on receiving transducer (12) to penetrate probe (11).
7. the transient electromagnetic defect of pipeline scanning equipment that magnetic field according to claim 6 focuses, it is characterised in that: the hair
Penetrate probe (11) centered on receiving transducer (12) equal cloth length in 40mm-500mm.
8. the transient electromagnetic defect of pipeline scanning equipment that magnetic field according to claim 1 focuses, it is characterised in that: probe
Quantity is 2-6.
9. the transient electromagnetic defect of pipeline scanning equipment that magnetic field according to claim 1 focuses, it is characterised in that: the spy
The bottom and the tube contacts position of head (1) are that the diameter of arcwall face is 30-600mm.
10. the transient electromagnetic defect of pipeline scanning equipment that magnetic field according to claim 1 focuses, it is characterised in that: described
It is connect between probe (1) and the transient electromagnetic equipment (2) using cable.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910492178.5A CN110146591A (en) | 2019-06-06 | 2019-06-06 | A kind of transient electromagnetic defect of pipeline scanning equipment that magnetic field focuses |
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| CN201910492178.5A CN110146591A (en) | 2019-06-06 | 2019-06-06 | A kind of transient electromagnetic defect of pipeline scanning equipment that magnetic field focuses |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730598A (en) * | 2020-12-27 | 2021-04-30 | 北京工业大学 | Method for manufacturing non-excavation harmonic magnetic field focusing detection probe of buried steel pipeline |
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| EP0382981A2 (en) * | 1988-12-29 | 1990-08-22 | Atlantic Richfield Company | Transient electromagnetic method for detecting irregularities on conductive containers having variations in jacket thickness |
| US5233297A (en) * | 1990-08-06 | 1993-08-03 | Atlantic Richfield Company | Transient electromagnetic method and apparatus for inspecting conductive objects utilizing sensors that move during inspection |
| US20050007108A1 (en) * | 2003-07-11 | 2005-01-13 | Teodor Dogaru | Probes and methods for detecting defects in metallic structures |
| CN103472488A (en) * | 2013-09-18 | 2013-12-25 | 安徽惠洲地下灾害研究设计院 | PCB coil board for transient electromagnetic surveying |
| US20160123928A1 (en) * | 2013-03-14 | 2016-05-05 | Kabushiki Kaisha Toshiba | Eddy current flaw detection device, eddy current flaw detection method, and eddy current flaw detection program |
| CN106154341A (en) * | 2016-06-21 | 2016-11-23 | 山东大学 | A kind of nuclear magnetic resonance, NMR and transient electromagnetic integrative detection instrument and method of work |
| CN107272074A (en) * | 2017-05-16 | 2017-10-20 | 中国矿业大学(北京) | A kind of apparatus and method for realizing Mine transient electromagnetic focusing-detection |
| CN107402254A (en) * | 2017-09-25 | 2017-11-28 | 天津特米斯科技有限公司 | A kind of transient electromagnetic defect of pipeline checking method and device |
| CN107505385A (en) * | 2017-09-25 | 2017-12-22 | 天津特米斯科技有限公司 | A kind of transient electromagnetic sensor and detection sensing device |
| CN210221902U (en) * | 2019-06-06 | 2020-03-31 | 天津特米斯科技有限公司 | Magnetic field focusing transient electromagnetic pipeline defect scanning device |
-
2019
- 2019-06-06 CN CN201910492178.5A patent/CN110146591A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0382981A2 (en) * | 1988-12-29 | 1990-08-22 | Atlantic Richfield Company | Transient electromagnetic method for detecting irregularities on conductive containers having variations in jacket thickness |
| US5233297A (en) * | 1990-08-06 | 1993-08-03 | Atlantic Richfield Company | Transient electromagnetic method and apparatus for inspecting conductive objects utilizing sensors that move during inspection |
| US20050007108A1 (en) * | 2003-07-11 | 2005-01-13 | Teodor Dogaru | Probes and methods for detecting defects in metallic structures |
| US20160123928A1 (en) * | 2013-03-14 | 2016-05-05 | Kabushiki Kaisha Toshiba | Eddy current flaw detection device, eddy current flaw detection method, and eddy current flaw detection program |
| CN103472488A (en) * | 2013-09-18 | 2013-12-25 | 安徽惠洲地下灾害研究设计院 | PCB coil board for transient electromagnetic surveying |
| CN106154341A (en) * | 2016-06-21 | 2016-11-23 | 山东大学 | A kind of nuclear magnetic resonance, NMR and transient electromagnetic integrative detection instrument and method of work |
| CN107272074A (en) * | 2017-05-16 | 2017-10-20 | 中国矿业大学(北京) | A kind of apparatus and method for realizing Mine transient electromagnetic focusing-detection |
| CN107402254A (en) * | 2017-09-25 | 2017-11-28 | 天津特米斯科技有限公司 | A kind of transient electromagnetic defect of pipeline checking method and device |
| CN107505385A (en) * | 2017-09-25 | 2017-12-22 | 天津特米斯科技有限公司 | A kind of transient electromagnetic sensor and detection sensing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730598A (en) * | 2020-12-27 | 2021-04-30 | 北京工业大学 | Method for manufacturing non-excavation harmonic magnetic field focusing detection probe of buried steel pipeline |
| CN112730598B (en) * | 2020-12-27 | 2024-02-02 | 北京工业大学 | Manufacturing method of non-excavation harmonic magnetic field focusing detection probe for buried steel pipeline |
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