CN207281002U - A kind of transient electromagnetic detection probe and detection device - Google Patents
A kind of transient electromagnetic detection probe and detection device Download PDFInfo
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- CN207281002U CN207281002U CN201721230420.4U CN201721230420U CN207281002U CN 207281002 U CN207281002 U CN 207281002U CN 201721230420 U CN201721230420 U CN 201721230420U CN 207281002 U CN207281002 U CN 207281002U
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Abstract
The utility model provides a kind of transient electromagnetic detection probe and detection device, is related to Non-Destructive Testing sensing equipment technical field, and transient electromagnetic detection probe includes yoke, induction coil and magnet exciting coil, wherein, induction coil is parallel and coaxial with magnet exciting coil.Magnet exciting coil is wound in the top of yoke, and induction coil is wound in the lower part of yoke, and direction of winding is consistent, forms two-layer composite.The coil diameter of magnet exciting coil is not more than the coil diameter of induction coil.Pulsed excitation signal outside the termination access of magnet exciting coil, the termination of induction coil export inductive impulse signal to outside.The technical solution alleviates the technical problem that detection range existing in the prior art is small, accuracy of detection is poor, and the defects of realizing chemical industry gathering line detects, and optimizes the structure of sensor, adds the investigative range of sensor, improves the detection accuracy of sensor.
Description
Technical field
Non-Destructive Testing sensing equipment technical field is the utility model is related to, more particularly, to a kind of transient electromagnetic detection probe
And detection device.
Background technology
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, at present, important instrument of the detection device based on transient electromagnetic principle as pipeline corrosion defect scanning
Equipment, has the characteristics that high certainty of measurement, cost are low, applicability is wide, easy to operate.The structure group of transient electromagnetic detection sensor
There is varied, the different line footpath of its transmitting terminal generally use into form, the transmitting terminal of different line footpaths is used for adapting to different walls
Thick, caliber, the various shapes such as elongated cylindrical, oblate cylindricality, square, ellipse are presented in it in structure.The knot of its receiving terminal
Symmetrical way double-line, isosceles triangle or matrix pattern is presented in structure respectively, to guarantee to receive enough feedback electromagnetic signals, to protect
Demonstrate,prove the accuracy of measurement data.
During the utility model is realized, inventor has found that at least there are the following problems in the prior art：Existing wink
It is excessively narrow to become the detection range of electromagnetic detection sensor, operating personnel need multi-pass operation to complete scanning so that testing process
Complexity, the probability increase for causing error to introduce, and existing transient electromagnetic detection sensor is due to equipment and its structure and line
The matching of the relations such as footpath is poor, causes the accuracy of detection of equipment entirety poor, is adapted to detect the pipeline with obvious shortcoming, it is difficult to
Gathering line extent of corrosion is detected, for actual production, it is difficult to realize the effect checked erroneous ideas at the outset, it is therefore, existing
There are the technical problem that investigative range is small, detection accuracy is poor for technology.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of transient electromagnetic detection probe and detection device, with slow
Solve the technical problem that investigative range existing in the prior art is small, detection accuracy is poor.
In a first aspect, the utility model embodiment provides a kind of transient electromagnetic detection probe, including：Yoke, the line of induction
Circle and magnet exciting coil, induction coil are parallel and coaxial with magnet exciting coil；
Magnet exciting coil is wound in the top of yoke, and induction coil is wound in the lower part of yoke, and direction of winding is consistent, is formed
Two-layer composite；
The coil diameter of magnet exciting coil is not more than the coil diameter of induction coil；
Pulsed excitation signal outside the termination access of magnet exciting coil；
The termination of induction coil exports inductive impulse signal to outside.
The utility model embodiment provides the first possible embodiment of first aspect, wherein, induction coil and
The diameter of wire scope of magnet exciting coil is：0.1mm~7.0mm.
The utility model embodiment provides second of possible embodiment of first aspect, wherein, induction coil and
The coil diameter scope of magnet exciting coil is：5mm~200mm.
The utility model embodiment provides the third possible embodiment of first aspect, wherein, induction coil and
The number of turns scope of magnet exciting coil is：1~2000.
The utility model embodiment provides the 4th kind of possible embodiment of first aspect, wherein, induction coil and
Magnet exciting coil is copper wire.
Second aspect, the utility model embodiment provide a kind of transient electromagnetic detection device, including：Mounting bracket, displacement
Sensor, communicator, get marker and above-mentioned transient electromagnetic detection probe ready；
One or more transient electromagnetic detection probes are equipped with mounting bracket, transient electromagnetic detection probe is distributed in arc-shaped
It is connected in the medial surface of mounting bracket, and with the marker of getting ready, displacement sensor and gets marker ready and be arranged on mounting bracket
Medial surface, respectively with transient electromagnetic detection probe, displacement sensor, get the communicator that marker is connected ready and be arranged at installation
The lateral surface of frame；
Pulsed excitation signal outside the access of transient electromagnetic detection probe, exports inductive impulse signal；
Displacement sensor generates displacement data according to motion track；
Communicator sends inductive impulse signal and displacement data；
Get marker ready and mark is got ready according to inductive impulse signal enabling.
The utility model embodiment provides the first possible embodiment of second aspect, wherein, outside mounting bracket
Side is additionally provided with handle.
The utility model embodiment brings following beneficial effect：The transient electromagnetic inspection that the utility model embodiment is provided
Probing head and detection device, wherein, transient electromagnetic detection probe includes：Yoke, induction coil and magnet exciting coil, wherein, sensing
Coil is parallel and coaxial with magnet exciting coil.Magnet exciting coil is wound in the top of yoke, and induction coil is wound in the lower part of yoke, and
Direction of winding is consistent, forms two-layer composite.The coil diameter of magnet exciting coil is not more than the coil diameter of induction coil.Excitation
Pulsed excitation signal outside the termination access of coil, the termination of induction coil export inductive impulse signal to outside.The technology
The double-layer combined structure that scheme is formed by using induction coil and magnet exciting coil, the defects of realizing chemical industry gathering line, are visited
Survey, optimize the structure of sensor, add the investigative range of sensor, improve the detection accuracy of sensor, and then realize
The simplification of detection flow, reduces the operation difficulty of detection, so as to alleviate, detection range existing in the prior art is small, detection
The technical problem of low precision.
To enable the above-mentioned purpose of the utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Attached drawing appended by cooperation, is described in detail below.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, describe below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is a kind of structure diagram for transient electromagnetic detection probe that the utility model embodiment provides；
Fig. 2 is a kind of structure diagram for transient electromagnetic detection device that the utility model embodiment provides.
Icon：
100- transient electromagnetic detection probes；110- yokes；120- induction coils；130- magnet exciting coils；200- mounting brackets；
300- displacement sensors；400- communicators；500- gets marker ready；600- handles.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model part is real
Example is applied, instead of all the embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making
All other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
At present, the detection range of existing transient electromagnetic detection sensor is excessively narrow, and operating personnel need multi-pass operation
Complete scanning so that testing process is complicated, the probability increase for causing error to introduce, and existing transient electromagnetic detection sensor by
It is poor in the matching of the relations such as equipment and its structure and line footpath, cause the accuracy of detection of equipment entirety poor, be adapted to detect tool
Have the pipeline of obvious shortcoming, it is difficult to gathering line extent of corrosion is detected, based on this, the utility model embodiment provide
A kind of transient electromagnetic detection probe and detection device, can increase the investigative range of sensor, improve the detection accuracy of sensor,
And then realize the simplification of detection flow.
Embodiment one：
Referring to Fig. 1, a kind of structure diagram for transient electromagnetic detection probe that the utility model embodiment is provided.This reality
The transient electromagnetic detection probe 100 provided with new embodiment, including：Yoke 110, induction coil 120 and magnet exciting coil 130,
Induction coil 120 is parallel and coaxial with magnet exciting coil 130.
Yoke 110 is coaxial with induction coil 120 and magnet exciting coil 130 respectively, and magnet exciting coil 130 is wound in yoke 110
Top, induction coil 120 is wound in the lower part of yoke 110, and induction coil 120 is consistent with the direction of winding of magnet exciting coil 130,
Induction coil 120 and magnet exciting coil 130 form two-layer composite, and the coil diameter of magnet exciting coil 130 is not more than the line of induction
The coil diameter of circle 120.The technical solution realizes excitation pulse using the magnet exciting coil of two-layer composite with induction coil
The concentration of signal is sent to be received with a wide range of of inductive impulse signal, and the wall thickness range for realizing defect of pipeline scanning increases to
20mm, the Detection accuracy of defect etching adjust bilayer up to more than 90%, and for the gathering line of different-diameter and wall thickness
The parameter of combined type coil, optimizes its structure, to improve its detection accuracy, increase its investigative range, and then reduces repeatedly measurement
Error introduce, while simplify its and detect flow, reduce its operation difficulty, improve detection efficient.
Pulsed excitation signal outside the termination access of magnet exciting coil 130.The termination of magnet exciting coil and exterior current source
It is connected, receives the power supply excitation that current source is sent, magnet exciting coil sends pulsed excitation signal with certain frequency, the signal moment
Duct wall is penetrated, difference is produced according to the difference of tubing wall thickness by the feedback signal of duct wall, specifically, induction coil
120 termination exports inductive impulse signal to outside.Inductive impulse signal passes through the feedback letter of duct wall for pulsed excitation signal
Number, the induction coil of sensor should be with duct wall close to ensure the covering surface of signal reception as the receiving terminal of feedback signal
Product and the intensity for receiving signal.
In the transient electromagnetic detection probe that the utility model embodiment provides, the diameter of wire of induction coil and magnet exciting coil
Scope is：0.1mm~7.0mm.Preferably, the diameter of wire of induction coil and magnet exciting coil can be 0.15mm, 0.20mm,
0.55mm or 0.9mm.
In the transient electromagnetic detection probe that the utility model embodiment provides, the coil diameter of induction coil and magnet exciting coil
Scope is：5mm~200mm.Preferably, the coil diameter of induction coil can be 25mm, 30mm, 40mm, 50mm.Excitation wire
The coil diameter of circle can be 20mm, 25mm, 30mm, 35mm, 40mm or 45mm, and the coil diameter of magnet exciting coil is no more than sense
Answer the coil diameter of coil.
In the transient electromagnetic detection probe that the utility model embodiment provides, the number of turns of induction coil and magnet exciting coil
Scope is：1~2000.
In the transient electromagnetic detection probe that the utility model embodiment provides, induction coil and magnet exciting coil are copper wire,
Copper wire has the advantages that conductive capability is strong as cell winding, further, the present embodiment in force, above-mentioned induction coil
There can be multiple choices mode with magnet exciting coil, such as：Aluminum conductor, copper alloy wire or aluminium alloy conductor.
The transient electromagnetic detection probe that the utility model embodiment is provided, including：Yoke, induction coil and excitation wire
Circle, wherein, induction coil is parallel and coaxial with magnet exciting coil.Magnet exciting coil is wound in the top of yoke, and induction coil is wound in
The lower part of yoke, and direction of winding is consistent, forms two-layer composite.The coil diameter of magnet exciting coil is no more than induction coil
Coil diameter.Pulsed excitation signal outside the termination access of magnet exciting coil, the termination of induction coil export sensing arteries and veins to outside
Rush signal.The double-layer combined structure that the technical solution is formed by using induction coil and magnet exciting coil, realizes chemical industry collection
The defects of defeated pipeline, detects, and optimizes the structure of sensor, adds the investigative range of sensor, improves the detection of sensor
Precision, and then the simplification of detection flow is realized, the operation difficulty of detection is reduced, so as to alleviate inspection existing in the prior art
Survey the technical problem that scope is small, accuracy of detection is poor.
Embodiment two：
Referring to Fig. 2, a kind of structure diagram for transient electromagnetic detection device that the utility model embodiment provides.This practicality
The transient electromagnetic detection device that new embodiment provides, including：Mounting bracket 200, displacement sensor 300, communicator 400, get ready
Marker 500 and above-mentioned transient electromagnetic detection probe 100.
The transient electromagnetic detection probe 100 that the utility model embodiment provides, the transient electromagnetic provided with above-described embodiment
Detection probe 100 has identical technical characteristic, so can also solve identical technical problem, reaches identical technique effect.
Specifically, being equipped with one or more transient electromagnetic detection probes 100 on mounting bracket 200, transient electromagnetic detection is visited
First 100, displacement sensor 300 and get the number of marker 500 ready and can be extended according to the scope diameter of pipeline, according to making
With need select 1 to 20 transient electromagnetic detection probes.Transient electromagnetic detection probe is distributed in the inner side of mounting bracket in arc-shaped
Face, and being connected with the marker 500 of getting ready, displacement sensor 300 and gets marker 500 ready and is arranged on mounting bracket 200
Medial surface, respectively with transient electromagnetic detection probe 100, displacement sensor 300, get the communicator 400 that marker 500 is connected ready
It is arranged at the lateral surface of mounting bracket 200.
Transient electromagnetic detection probe 100 accesses the pulsed excitation signal of outside, exports inductive impulse signal.By transient electromagnetic
The outside that detection probe is placed in reference block carries out wall thickness detection to it, records the inductive impulse signal of the reference block as base
Standard, reference block have multiple standard sizes.For there is corrosive pipeline or defect damage, the sensing fed back
Had differences between pulse signal and the inductive impulse signal of reference block, and difference degree and corrosion damage degree are into positive
Close, embody the corrosion default situation of pipeline.The technical solution realizes the measurement to tube performance parameter using electromagnetic principle,
The insulating layer of pipeline external need not be dismantled, reduces substantial amounts of drain on manpower and material resources, and the safety for avoiding disassembling section from bringing
Hidden danger.
Displacement sensor 300 generates displacement data according to motion track.Specifically, testing staff holds transient electromagnetic detection
Device is axially moved along pipeline, and displacement sensor 300 records the motion track of transient electromagnetic detection device, and shifting is calculated
Dynamic path and coordinate, generate corresponding displacement data.
Communicator 400 sends inductive impulse signal and displacement data.Specifically, communicator and exterior transient electromagnetic host
It is connected, inductive impulse signal and displacement data are sent to transient electromagnetic host, communicator and also send inductive impulse by communicator
Signal is to getting marker ready, since pulsed excitation signal with inductive impulse signal generates difference, it is necessary to right after duct wall
The position that wall thickness data have differences is marked, subsequently to carry out the Accurate Analysis for corrosion default.Get marker ready
Mark is got ready according to inductive impulse signal enabling, marker is got ready and receives the inductive impulse signal that communicator is sent, and according to logical
Interrogate the inductive impulse signal that device is sent and complete relative different calculating, the value that difference is calculated exceedes the opposite position of threshold value
Carry out getting mark ready.
Further, in the transient electromagnetic detection device that the utility model embodiment provides, the lateral surface of mounting bracket is also set
It is equipped with handle 600.Testing staff holds the handle, by transient electromagnetic detection device along pipeline axial translation, detects pipeline in real time
Corrosion condition.
The transient electromagnetic detection device that the utility model embodiment is provided, including：Mounting bracket, displacement sensor, communication
Device, get marker and transient electromagnetic detection probe ready.Wherein, transient electromagnetic detection probe includes yoke, induction coil and excitation
Coil, induction coil are parallel and coaxial with magnet exciting coil.Magnet exciting coil is wound in the top of yoke, and induction coil is wound in yoke
Lower part, and direction of winding is consistent, forms two-layer composite.The coil diameter of magnet exciting coil is not more than the coil of induction coil
Diameter.Pulsed excitation signal outside the termination access of magnet exciting coil, the termination of induction coil are believed to outside output inductive impulse
Number.Pulsed excitation signal outside the access of transient electromagnetic detection probe, exports inductive impulse signal.Displacement sensor is according to movement
Track Pick-up displacement data, communicator send inductive impulse signal and displacement data, get marker ready according to inductive impulse signal
Mark is got in startup ready.Transient electromagnetic detection probe in the technical solution forms double by using induction coil and magnet exciting coil
Layer composite structure, adds the investigative range of sensor, improves the detection accuracy of sensor, and then realizes detection flow
Simplification, reduce the operation difficulty of detection, meanwhile, displacement sensor, get matching somebody with somebody for marker and transient electromagnetic detection probe ready
Closing realizes corrosion default scanning and the mark of chemical industry gathering line, alleviates the existing inspection of existing transient electromagnetic detection device
Survey the technical problem that scope is small, accuracy of detection is poor.
In the description of the utility model embodiment, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in utility model.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
Finally it should be noted that：Embodiment described above, is only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the scope of protection of the utility model is not limited thereto, although with reference to foregoing
The utility model is described in detail in embodiment, it will be understood by those of ordinary skill in the art that：It is any to be familiar with this skill
For the technical staff in art field in the technical scope that the utility model discloses, it still can be to the skill described in previous embodiment
Art scheme is modified or can readily occur in change, or carries out equivalent substitution to which part technical characteristic；And these modifications,
Change is replaced, and the essence of appropriate technical solution is departed from the spirit and model of the utility model embodiment technical solution
Enclose, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be wanted with the right
Subject to the protection domain asked.
Claims (7)
1. a kind of transient electromagnetic detection probe, including：Yoke, induction coil and magnet exciting coil, it is characterised in that the line of induction
Circle is parallel and coaxial with the magnet exciting coil；
The magnet exciting coil is wound in the top of the yoke, and the induction coil is wound in the lower part of the yoke, and coiling
Direction is consistent, forms two-layer composite；
The coil diameter of the magnet exciting coil is not more than the coil diameter of the induction coil；
Pulsed excitation signal outside the termination access of the magnet exciting coil；
The termination of the induction coil exports inductive impulse signal to outside.
2. transient electromagnetic detection probe according to claim 1, it is characterised in that the induction coil and the excitation wire
The diameter of wire scope of circle is：0.1mm~7.0mm.
3. transient electromagnetic detection probe according to claim 1, it is characterised in that the induction coil and the excitation wire
The coil diameter scope of circle is：5mm~200mm.
4. transient electromagnetic detection probe according to claim 1, it is characterised in that the induction coil and the excitation wire
The number of turns scope of circle is：1~2000.
5. transient electromagnetic detection probe according to claim 1, it is characterised in that the induction coil and the excitation wire
Circle is copper wire.
A kind of 6. transient electromagnetic detection device, it is characterised in that including：Mounting bracket, displacement sensor, communicator, get mark ready
Device and the transient electromagnetic detection probe as any one of claim 1 to 5；
One or more transient electromagnetic detection probes are equipped with the mounting bracket, the transient electromagnetic detection probe is in circle
Arcuation is distributed in the medial surface of mounting bracket, and is connected with the marker of getting ready, institute's displacement sensors and described gets mark ready
Note device is arranged on the medial surface of the mounting bracket, respectively with the transient electromagnetic detection probe, displacement sensor, get marker ready
The communicator being connected is arranged at the lateral surface of the mounting bracket；
Pulsed excitation signal outside the transient electromagnetic detection probe access, exports inductive impulse signal；
Institute's displacement sensors generate displacement data according to motion track；
The communicator sends the inductive impulse signal and the displacement data；
The marker of getting ready gets mark ready according to the inductive impulse signal enabling.
7. transient electromagnetic detection device according to claim 6, it is characterised in that the lateral surface of the mounting bracket is also set up
There is handle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721230420.4U CN207281002U (en) | 2017-09-25 | 2017-09-25 | A kind of transient electromagnetic detection probe and detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721230420.4U CN207281002U (en) | 2017-09-25 | 2017-09-25 | A kind of transient electromagnetic detection probe and detection device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109342549A (en) * | 2018-11-28 | 2019-02-15 | 中国石油大学(华东) | A kind of aluminium alloy pipeline inside and outside wall flaw detection probe |
| CN110095526A (en) * | 2019-06-06 | 2019-08-06 | 天津特米斯科技有限公司 | A kind of transient electromagnetic method probe apparatus |
| CN110275223A (en) * | 2019-06-26 | 2019-09-24 | 中国海洋石油集团有限公司 | The monitoring while drilling system and monitoring while drilling of a kind of deep water geological disaster and recognition methods |
-
2017
- 2017-09-25 CN CN201721230420.4U patent/CN207281002U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109342549A (en) * | 2018-11-28 | 2019-02-15 | 中国石油大学(华东) | A kind of aluminium alloy pipeline inside and outside wall flaw detection probe |
| CN110095526A (en) * | 2019-06-06 | 2019-08-06 | 天津特米斯科技有限公司 | A kind of transient electromagnetic method probe apparatus |
| CN110095526B (en) * | 2019-06-06 | 2024-04-02 | 天津特米斯科技有限公司 | Transient electromagnetic method probe device |
| CN110275223A (en) * | 2019-06-26 | 2019-09-24 | 中国海洋石油集团有限公司 | The monitoring while drilling system and monitoring while drilling of a kind of deep water geological disaster and recognition methods |
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