CN108535353A - A kind of pipeline crack detection device - Google Patents
A kind of pipeline crack detection device Download PDFInfo
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- CN108535353A CN108535353A CN201810211535.1A CN201810211535A CN108535353A CN 108535353 A CN108535353 A CN 108535353A CN 201810211535 A CN201810211535 A CN 201810211535A CN 108535353 A CN108535353 A CN 108535353A
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- coil
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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
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- General Physics & Mathematics (AREA)
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The present invention relates to a kind of pipeline crack detection devices, including rear end cap, detection components, power supply, signal processing component, shell, gag lever post, spring, traveling wheel, connecting rod, hinge, drive end bearing bracket, draw ring to form.Detection components include yoke, tile, coil group, ring body, cylindrical type permanent magnet.Yoke is connected with cylindrical type permanent magnet both ends, there is the lock chamber similar with coil size shape in tile, for fixed coil to reduce influence of the shake to detection result.Coil group coil presses circumferential arrangement, differential each other two-by-two and every three are mutually triangle, is installed in ring body.Signal processing component is connected with coil group, is used for the detection signal for the treatment of coil group, detects after signal is handled again and stores to treated with compressed sensing technology.Gag lever post is ensureing that coil group works in the Lift-off effect range small to effect of signals always.The configuration of the present invention is simple can greatly improve the accuracy of detection to different directions crackle.
Description
Technical field
The present invention relates to pipeline inspection technology field, more particularly to a kind of pipeline crack carried out in the pipeline of oil gas field
Detection device.
Technical background
Oil gas field pipeline infrastructure used in China has largely had been subjected to the time limit of military service mid-term now, just gradually
Aging is moved towards, various pipeline damages start to influence the normal operation of pipeline.Since the medium type of conveying is different, conveying
Condition is different, and the influence to pipeline is different.Different defects is presented in pipeline, such as：Stomata, crackle, inner wall corrosion etc..
Crack defect proportion is very big in all kinds of defects that pipeline occurs, dangerous strong, and the disconnected of pipeline can be caused when situation is serious
It splits, the oil and gas leakage in pipeline is made to pollute environment, endanger personnel health's even personal safety.Therefore, pipeline is examined
It surveys with discovery defect as early as possible, the normal operation to ensure pipeline is particularly important.
Now there are Magnetic Flux Leakage Inspecting method, ultrasonic Detection Method, detection method of eddy, ray detection using the technology of detection crackle at present
Method, Liquid penetrant testing method etc..Wherein relatively it is widely used that Magnetic Flux Leakage Inspecting method, ultrasonic Detection Method and EDDY CURRENT both at home and abroad
Method.The reason of ultrasonic Detection Method is because of couplant, it is difficult to directly apply.Flux leakage detector almost can only be to one party now
To crackle preferably detected, but it is very undesirable to other direction crack defect detection results.Vortex is to ferromagnetic material
Penetration power is weak, and detection method of eddy can only be used for detecting surface corrosion.
Therefore, how simply to move towards crackle to be detected and good detection result can be reached to be current skill to different
The problem of art personnel's urgent need to resolve.
Invention content
The object of the present invention is to provide a kind of pipeline crack detection devices, so that the different lines that move towards are detected and are improved
Its accuracy of detection.
In order to solve the above technical problems, pipeline crack detection device provided by the invention includes rear end cap, detection components, electricity
Source, signal processing component, shell, gag lever post, spring, traveling wheel, connecting rod, hinge, drive end bearing bracket, draw ring.Detection components include magnetic
Yoke, tile, coil group, ring body, cylindrical type permanent magnet.Yoke be connected with cylindrical type permanent magnet both ends make the magnetic line of force be more easy into
Enter tube wall, pipeline is allowed easily to reach magnetic saturation state, to guarantee to detect that the outer wall of pipeline is split.Have in tile big with coil
The similar lock chamber of small shape, with the coil in fixed coil group to reduce influence of the shake to detection result.In coil group
Coil presses circumferential arrangement, differential each other two-by-two and every three are mutually equilateral triangle, is mounted in ring body, to improve to not Tongfang
To the accuracy of detection of crackle.Signal processing component is connected by the logical line mouth opened up in shell with cable with coil group, for letter
The detection signal of single treatment coil group, stores after being handled the signal of preliminary treatment with compressed sensing technology, to ensure
More useful informations can be stored under identical memory conditions.Ring body opens string holes semicircle by a semicircular feature and one
Component forms.Connecting rod one end is connected with traveling wheel, and the other end is fixed with hinge, and hinge is mounted in housing outer surface.Spring two
End is separately fixed at shell on connecting rod, and spring is in compressive state always during the work time, to ensure that traveling wheel always can
Enough and tube contacts.Gag lever post is located in spring and is welded on housing outer surface makes coil to limit the scope of activities of connecting rod
Group works in the Lift-off effect range small to effect of signals always.Draw ring with external impetus unit for being connected.
Wherein coil group coil number is n, coil diameter r, and distance is projected in ring between the edge of each two coil
It is s on body, ring body outer radius is R, then coil number is about n=[p], whereinLock chamber in the tile
Number is identical as coil group coil number.
Compared with the prior art, the present invention has the following advantages：
1, the device can disposably be completed to move towards the detection of crackle to different, and reach comparatively ideal detection result.
2, the device significantly reduces influence of the Lift-off effect to detection.
3, it is stored after being handled the signal of preliminary treatment using compressed sensing technology, greatly reduces the occupancy of memory
Amount.
4, make the magnetic line of force be more easy to enter tube wall with yoke, allow pipeline to reach magnetic saturation state, to guarantee to detect
To the outer wall crackle of pipeline.
Description of the drawings
Fig. 1 is a kind of general structure schematic diagram of pipeline crack detection device of the present invention.
Fig. 2 detection components structural schematic diagrams.
Fig. 3 coil relative position schematic diagrames.
Fig. 4 ring body structurc schematic side views.
Wherein, 1. rear end cap, 2. detection components, 3. power supplys, 4. signal processing components, 5. shells, 6. gag lever posts, 7. bullets
Spring, 8. traveling wheels, 9. connecting rods, 10. hinges, 11. pipelines, 12. drive end bearing brackets, 13. draw rings, 201. yokes, 202. tiles, 203. lines
Circle group, 204. ring bodies, 2011. semicircular features, 2012. open string holes semicircular feature.
Specific implementation mode
Core of the invention is to provide a kind of pipeline crack detection device, so as to detect splitting for different trends simultaneously
Line.
The present invention is described in further detail below in conjunction with the accompanying drawings, and those skilled in the art is made to more fully understand this
Invention.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of pipeline crack detection device of the present invention, including rear end cap 1, detection components
2, power supply 3, signal processing component 4, shell 5, gag lever post 6, spring 7, traveling wheel 8, connecting rod 9, hinge 10, drive end bearing bracket 12, draw ring
13.Detection components 2, power supply 3 and signal processing component 4 are installed in the inside of shell 5 respectively there are two installation cavity, and two installation cavitys it
Between be provided with logical line mouth, to ensure that detection components 2 are connect with power supply 3 and signal processing component 4.Detection components 2 include yoke 201,
Tile 202, coil group 203, ring body 204, cylindrical type permanent magnet 205, two pieces of cylindrical type permanent magnets 205 are former by there is a natural attraction between the sexes
Reason conjunction is fixed after being integral with ring body 204.The protruding end of semicircular feature 2011, which can just be installed into, opens string holes semicircle
The female end of component 2012, the female end of semicircular feature 2011 can just be installed by opening the protruding end of string holes semicircular feature 2012
To form ring body 204.203 coil of coil group presses circumferential arrangement, differential each other two-by-two and every three are mutually equilateral triangle,
In ring body 204, ensure that the crackle of different directions can very well be detected always by coil sections in coil group 203, from
And greatly improve the precision of detection.There is the lock chamber similar with coil size shape in tile 202, comes in fixed coil group 203
Coil to reduce influence of the shake to detection result.Tile 202 using splicing form formed a complete circle, then
Yoke 201 is mounted on the both ends of cylindrical type permanent magnet 205, and the magnetic line of force is made to be more easy to enter tube wall, allows pipeline 11 easily to reach magnetic full
And state, to guarantee to detect the outer wall crackle of pipeline 11.Passed through in yoke 201 and ring body 204 using bolt again
Threaded hole enables yoke 201 to fix tile 202 to assemble detection components 2.The logical line mouth and magnetic that cable passes through shell 5
Yoke 201 is connected signal processing component 4 with coil group 203 with the threading hole in ring body 204, carrys out the detection for the treatment of coil group 203
Signal and provide pumping signal for coil group 203, wherein power supply 3 is specifically and the power supply processing circuit in signal processing component 4
After being connected pumping signal is provided for coil group 203.With compression sensing skill in embeded processor in signal processing component 4
Art carrys out processing detection signal, and more useful signals can be stored under identical memory conditions.Etc. install detection components 2,
After power supply 3 and signal processing component 4 two installation cavitys inside shell 5 have been closed with drive end bearing bracket 12 and rear end cap 1 respectively.
There are gag lever post 6, spring 7, traveling wheel 8, connecting rod 9, hinge 10,9 one end of connecting rod and walking on the outer surface of shell 5
Wheel 8 is connected, and the other end is fixed with hinge 10, and hinge 10 is mounted on 5 outer surface of shell.7 both ends of spring are separately fixed at shell 5
With on connecting rod 9, spring 7 is in compressive state always during the work time, to ensure that traveling wheel 8 can connect always with pipeline 11
It touches.Gag lever post 6 is located in spring 7 and is welded on 5 outer surface of shell makes coil group 203 to limit the scope of activities of connecting rod 9
Always it works in the Lift-off effect range small to effect of signals.Draw ring (13) on drive end bearing bracket 12 is used for and external impetus unit
It is connected.
Wherein 203 coil number of coil group is n, and wherein coil diameter is r, and distance is thrown between the edge of each two coil
Shadow is s in ring body, and ring body outer radius is R, then coil number is about n=[p], whereinAnd in its tile 202
Lock chamber number is identical as 203 coil number of coil group.
Pipeline crack detection device provided by the present invention is described in detail above.It is described above to be only intended to help
Assistant solves the present invention and its core concept.It should be pointed out that for those skilled in the art, the principle of the invention is not being departed from
Under the premise of, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the claims in the present invention
In protection domain.
Claims (3)
1. a kind of pipeline crack detection device, including rear end cap (1), detection components (2), power supply (3), signal processing component (4),
Shell (5), gag lever post (6), spring (7), traveling wheel (8), connecting rod (9), hinge (10), drive end bearing bracket (12), draw ring (13)；It is special
Sign is, the detection components (2) include yoke (201), tile (202), coil group (203), ring body (204), cylindrical type forever
Long magnet (205)；The yoke (201) is connected with cylindrical type permanent magnet (205) both ends makes the magnetic line of force be more easy to enter tube wall, allows
Pipeline (11) easily reaches magnetic saturation state, to guarantee to detect the outer wall crackle of pipeline (11)；In the tile (202)
There is the lock chamber similar with coil size shape, with the coil in fixed coil group (203) to reduce shake to detection result
Influence；Coil group (203) coil presses circumferential arrangement, differential each other two-by-two and every three are mutually equilateral triangle, peace
In ring body (204), to improve the accuracy of detection to different directions crackle；The signal processing component (4) and coil group
(203) it is connected by the logical line mouth cable opened up in shell (5), is used for the detection signal of simple process coil group (203), fortune
It is stored after being handled the signal of preliminary treatment with compressed sensing technology, to guarantee to store under identical memory conditions
More useful informations.
2. a kind of pipeline crack detection device as described in claim 1, which is characterized in that the ring body (204) is by semicircle
Component (2011) is formed with string holes semicircular feature (2012) is opened；Described connecting rod (9) one end is connected with traveling wheel (8), another
End is fixed with hinge (10), and hinge (10) is mounted on shell (5) outer surface；Spring (7) both ends are separately fixed at shell
(5) on connecting rod (9), spring (7) is in compressive state always during the work time, to ensure that traveling wheel (8) always can be with
Pipeline (11) contacts；The gag lever post (6) is located in spring (7) and is welded on shell (5) outer surface, to limit connecting rod (9)
Scope of activities, so that coil group (203) is worked in the Lift-off effect range small to effect of signals always；The draw ring (13) is used
It is connected in external impetus unit.
3. a kind of pipeline crack detection device as described in claim 1, which is characterized in that coil group (203) coil
Number is n, and wherein coil diameter is r, and it is s that distance, which is projected in ring body, between the edge of each two coil, and ring body outer radius is
R, then coil number is about n=[p], whereinLock chamber number and coil group (203) in the tile (202)
Coil number is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810211535.1A CN108535353A (en) | 2018-03-14 | 2018-03-14 | A kind of pipeline crack detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810211535.1A CN108535353A (en) | 2018-03-14 | 2018-03-14 | A kind of pipeline crack detection device |
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| Publication Number | Publication Date |
|---|---|
| CN108535353A true CN108535353A (en) | 2018-09-14 |
Family
ID=63483905
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| CN201810211535.1A Pending CN108535353A (en) | 2018-03-14 | 2018-03-14 | A kind of pipeline crack detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341898A (en) * | 2018-12-13 | 2019-02-15 | 盐城市沿海新能源汽车科技有限公司 | A kind of dedicated temperature-detecting device of hot flow path |
| CN109884129A (en) * | 2019-03-27 | 2019-06-14 | 爱德森（厦门）电子有限公司 | A kind of device and method of rail aluminum weld quality testing |
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| JP2005055325A (en) * | 2003-08-05 | 2005-03-03 | Sumitomo Kinzoku Technol Kk | Eddy current flaw detecting probe |
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| JPH08136509A (en) * | 1994-11-09 | 1996-05-31 | Nikko Kensa Service Kk | Eddy current flaw detection method and apparatus for inner surface layer of pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341898A (en) * | 2018-12-13 | 2019-02-15 | 盐城市沿海新能源汽车科技有限公司 | A kind of dedicated temperature-detecting device of hot flow path |
| CN109341898B (en) * | 2018-12-13 | 2021-06-01 | 盐城市沿海新能源汽车科技有限公司 | Dedicated temperature-detecting device of hot runner |
| CN109884129A (en) * | 2019-03-27 | 2019-06-14 | 爱德森（厦门）电子有限公司 | A kind of device and method of rail aluminum weld quality testing |
| CN109884129B (en) * | 2019-03-27 | 2021-11-23 | 爱德森（厦门）电子有限公司 | Device and method for detecting thermite welding quality of steel rail |
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Application publication date: 20180914 |
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