CN203037626U - Guided wave detecting system based on magnetostrictive effect - Google Patents
Guided wave detecting system based on magnetostrictive effect Download PDFInfo
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- CN203037626U CN203037626U CN 201220724792 CN201220724792U CN203037626U CN 203037626 U CN203037626 U CN 203037626U CN 201220724792 CN201220724792 CN 201220724792 CN 201220724792 U CN201220724792 U CN 201220724792U CN 203037626 U CN203037626 U CN 203037626U
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- guided wave
- system based
- wave detection
- magnetostrictive effect
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Abstract
The utility model provides a guided wave detecting system based on magnetostrictive effect. The guided wave detecting system based on the magnetostrictive effect comprises a pipe to be detected and a guided wave detecting device. The pipe to be detected comprises a pipe body, and the guided wave detecting device comprises a probe and a main control device. The probe is arranged on the surface of the pipe body and is provided with one or more magnetostrictive energy converters, the main control device comprises a back wave receiving device and a signal output device, wherein the back wave receiving device is connected between the probe and the signal output device. The guided wave detecting system based on the magnetostrictive effect can achieve long-distance pipe detection.
Description
Technical field
The utility model relates to the pipe detection technology, especially, relates to a kind of guided wave detection system based on magnetostrictive effect that is applicable to that long-distance pipe detects.
Background technology
Marine oil industrial development in recent years is swift and violent, and each oil company has set up the petroleum drilling and mining platform that varies in size at sea.Usually these petroleum drilling and mining platforms need be laid subsea pipeline and subsea cable, connect by the standpipe that is installed on the jacket between subsea pipeline and the platform upper module.The industrial accident that corrosion failure causes because of the influence of factors such as the impact of the burn into stormy waves that is subjected to seawater for a long time and internal corrosion medium, thereby usually can take place in these ocean platform standpipe nets.Therefore strengthen the online detection and long-term status monitoring of the corrosion of ocean platform standpipe net, to ensureing continuous production, preventing that security incident from having very significance.
The standpipe normal length of offshore platform is longer, such as, general about about 130 meters of zone, the South Sea, and position more special (about 100 meters long below seawater, remainder is unsettled), the testing staff is difficult to approach.Traditional pipe detection is usually based on visual testing, ultrasonic thickness test, and routine inspection technologies such as assisting ultrasonic wave inspection and ray detection are spot-check.But, the sensing range of above-mentioned pipeline detection system is very limited, is difficult to realize long-distance pipe is detected.
The utility model content
For addressing the above problem, the utility model provides a kind of guided wave detection system based on magnetostrictive effect that can realize that long-distance pipe detects.
The guided wave detection system based on magnetostrictive effect that the utility model provides comprises pipe under test and guided wave detection device, described pipe under test comprises body, described guided wave detection device comprises probe and main control equipment, described probe is arranged on described body surface, and have one or more magnetostrictive transducers, described main control equipment comprises echo receiving equipment and signal output apparatus, and described echo receiving equipment is connected between described probe and the described signal output apparatus.
In a preferred embodiment of the present utility model, described pipe under test is petroleum pipe line.
In a preferred embodiment of the present utility model, described pipe under test is subsea pipeline or the ocean platform standpipe of offshore oil pipeline system.
In a preferred embodiment of the present utility model, described pipeline also comprises weld seam and flange, and the zone of described body between described weld seam and flange has defect of pipeline.
In a preferred embodiment of the present utility model, described probe is coupled to described body surface by doing coupling scheme.
In a preferred embodiment of the present utility model, described probe is positioned at the position of contiguous described body end.
In a preferred embodiment of the present utility model, described probe is Armco magnetic iron cobalt band.
Compared to prior art, the guided wave detection system based on magnetostrictive effect that the utility model provides utilizes magnetostrictive effect to make probe produce the ultrasonic stress wave of axially propagating along body, and the ultrasonic echo that returns in described body propagation according to described ultrasonic stress wave obtains corresponding pulse waveform, utilize described pulse waveform, not only can realize the detection of long-distance pipe, and positioning and analysis etc. defect of pipeline.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation based on a kind of embodiment of guided wave detection system of magnetostrictive effect that the utility model provides.
Fig. 2 is the detection waveform synoptic diagram of guided wave detection system based on magnetostrictive effect shown in Figure 1.
Embodiment
To the technical scheme among the utility model embodiment be clearly and completely described below, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtain under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1, the structural representation based on a kind of embodiment of guided wave detection system of magnetostrictive effect that it provides for the utility model.Described guided wave detection system based on magnetostrictive effect comprises: pipe under test 100 and guided wave detection device 200.Described pipe under test 100 can be petroleum pipe line, such as the subsea pipeline in the offshore oil pipeline system or ocean platform standpipe, wherein said pipe under test 100 comprises body 110, weld seam 120 and flange 140, and the zone of described body 110 between described weld seam 120 and flange 140 has defect of pipeline 130.
For ease of understanding, the body 110 of pipe under test 100 shown in Figure 1 but should be appreciated that in specific embodiment described body 110 can also or comprise crooked pipeline and the mixing duct of straight tube for crooked pipeline with straight tube as an example.In addition, Fig. 1 only is at described body 110 schematically draw a weld seam 120, a defect of pipeline 130 and a flange 140.In actual applications, described pipe under test 100 also can have a plurality of weld seams and a plurality of flange, and the position of described weld seam and described flange can be decided according to actual pipe applications needs.In addition, in actual pipeline, also may have a plurality of defect of pipeline 130 between described weld seam 120 and the described flange 140, and described defect of pipeline 130 also may appear at other positions, wherein said defect of pipeline 130 can be pipeline crack or corrosive pipeline zone, such as outer surface of tube body corrosion area or interior pipe corrosion area etc.
Described guided wave detection device 200 comprises probe 210 and master control set 220, and wherein said probe 210 is arranged on body 110 surfaces of described pipe under test 100 and is positioned at the position of contiguous described body 110 ends.Described master control set 220 can comprise echo receiving equipment 221 and signal output apparatus 222, and wherein said echo receiving equipment 221 can be connected to described probe 210 by lead, and further is connected to described signal output apparatus 222.
Described probe 210 can adopt dried coupling scheme to be coupled to described body 110 surfaces, perhaps is coupled to described body 110 surfaces by couplant (such as epoxide-resin glue).In specific embodiment, described probe 210 also can adopt the probe sheath ring structure that is socketed in described body 110 surfaces, such as, the described probe collar can adopt and be divided into two structure and be installed to described body 110 by locking part (such as screw or buckle), also can adopt the inflatable flexible collar and guarantee that by internal pump pressure probe fully contacts with described body 110.
Described probe 210 can be provided with one or more magnetostrictive transducers, described magnetostrictive transducer can carry out periodic duty under the control of the pumping signal that described master control set 220 provides, when each work, described probe 210 can utilize magnetostrictive effect that described body 110 is produced the magnetic field effect, causes described body 110 to produce strain and then produce ultrasonic stress wave.Described ultrasonic stress wave can axially propagating along described body 110, reflection will take place and form ultrasonic echo when discontinuous zone (as pipeline junction or defect of pipeline) appears in the propagation medium of described ultrasonic stress wave, such as, when described ultrasonic stress wave propagation will occur reflection during to described weld seam 120, described defect of pipeline 130 and described flange 140 respectively and produce ultrasonic echo, and described ultrasonic echo is back to described probe 210 in the opposite direction.
Described probe 210 is after detecting described ultrasonic echo, can further described ultrasonic echo be transferred to described echo receiving equipment 221, described echo receiving equipment 221 can use magnetostrictive reaction, producing magnetic according to described ultrasonic echo changes, and magnetic changed be converted to magnetic strength Strength Changes and magnetic flux conversion successively, and finally produce induced voltage, further, described induced voltage can be converted into reflected signal and export to described signal output apparatus 222.Described signal output apparatus 222 can be according to described reflected signal, the position corresponding with described weld seam 120, described defect of pipeline 130 and described flange 140 produces respectively pulse waveform (as shown in Figure 2 in its output waveform figure as shown in Figure 2, correspond respectively to the pulse of positive phase at described weld seam 120 and described flange 140, and described defect of pipeline 130 is corresponding to the pulse of minus phase).According to described pulse waveform, the pipeline inspection personnel just can go out position and the defect level that described defect of pipeline 130 appears in described body 110 respectively, and can further analyze the rate of expansion of described defect of pipeline 130, and then find out reason that described defect of pipeline 130 occurs etc.
Compared to prior art, the guided wave detection system based on magnetostrictive effect that the utility model provides utilizes magnetostrictive effect to make described probe 210 produce the ultrasonic stress wave of axially propagating along described body 110, and the ultrasonic echo that returns in described body 110 is propagated according to described ultrasonic stress wave obtains corresponding pulse waveform, utilize described pulse waveform, not only can realize the detection of long-distance pipe, and positioning and analysis etc. defect of pipeline.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model description to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present utility model.
Claims (7)
1. guided wave detection system based on magnetostrictive effect, it is characterized in that, comprise pipe under test and guided wave detection device, described pipe under test comprises body, described guided wave detection device comprises probe and main control equipment, and described probe is arranged on described body surface, and has one or more magnetostrictive transducers, described main control equipment comprises echo receiving equipment and signal output apparatus, and described echo receiving equipment is connected between described probe and the described signal output apparatus.
2. the guided wave detection system based on magnetostrictive effect according to claim 1 is characterized in that, described pipe under test is petroleum pipe line.
3. the guided wave detection system based on magnetostrictive effect according to claim 2 is characterized in that, described pipe under test is subsea pipeline or the ocean platform standpipe of offshore oil pipeline system.
4. according to each described guided wave detection system based on magnetostrictive effect in the claim 1 to 3, it is characterized in that described pipeline also comprises weld seam and flange, and the zone of described body between described weld seam and flange has defect of pipeline.
5. the guided wave detection system based on magnetostrictive effect according to claim 1 is characterized in that, described probe is coupled to described body surface by doing coupling scheme.
6. the guided wave detection system based on magnetostrictive effect according to claim 5 is characterized in that, described probe is positioned at the position of contiguous described body end.
7. the guided wave detection system based on magnetostrictive effect according to claim 1 is characterized in that, described probe is Armco magnetic iron cobalt band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724792 CN203037626U (en) | 2012-12-25 | 2012-12-25 | Guided wave detecting system based on magnetostrictive effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724792 CN203037626U (en) | 2012-12-25 | 2012-12-25 | Guided wave detecting system based on magnetostrictive effect |
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| Publication Number | Publication Date |
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| CN203037626U true CN203037626U (en) | 2013-07-03 |
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| CN 201220724792 Expired - Fee Related CN203037626U (en) | 2012-12-25 | 2012-12-25 | Guided wave detecting system based on magnetostrictive effect |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651856A (en) * | 2014-11-13 | 2016-06-08 | 广东核电合营有限公司 | Apparatus and method for pipeline corrosion online inspection |
| CN108088907A (en) * | 2017-12-14 | 2018-05-29 | 哈尔滨零声科技有限公司 | A kind of high temperature pipe hurt on-line monitoring system based on electromagnetic acoustic |
| CN113567539A (en) * | 2021-07-26 | 2021-10-29 | 广西电网有限责任公司玉林供电局 | Nondestructive testing method for tower foundation bolt |
-
2012
- 2012-12-25 CN CN 201220724792 patent/CN203037626U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651856A (en) * | 2014-11-13 | 2016-06-08 | 广东核电合营有限公司 | Apparatus and method for pipeline corrosion online inspection |
| CN108088907A (en) * | 2017-12-14 | 2018-05-29 | 哈尔滨零声科技有限公司 | A kind of high temperature pipe hurt on-line monitoring system based on electromagnetic acoustic |
| CN113567539A (en) * | 2021-07-26 | 2021-10-29 | 广西电网有限责任公司玉林供电局 | Nondestructive testing method for tower foundation bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Guided wave detecting system based on magnetostrictive effect Effective date of registration: 20150106 Granted publication date: 20130703 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: Shenzhen Fairness Component Mechanical Technology Service Co., Ltd. Registration number: 2015990000012 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20191225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |