CN211475528U - Array type magnetostrictive ultrasonic guided wave transducer - Google Patents
Array type magnetostrictive ultrasonic guided wave transducer Download PDFInfo
- Publication number
- CN211475528U CN211475528U CN201922197816.9U CN201922197816U CN211475528U CN 211475528 U CN211475528 U CN 211475528U CN 201922197816 U CN201922197816 U CN 201922197816U CN 211475528 U CN211475528 U CN 211475528U
- Authority
- CN
- China
- Prior art keywords
- guided wave
- ultrasonic guided
- wave transducer
- organic material
- magnetostrictive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model provides an array magnetostrictive ultrasonic guided wave transducer, which comprises a fixed shell and a transducing component; the energy conversion components are circumferentially and uniformly distributed on the outer wall of a pipeline in an array mode, and the fixed shell is wrapped outside the energy conversion components. Through the even array distribution of transducer assembly circumference, greatly reduced at the length of spiral welded tube axial direction installation, the transducer assembly of disconnect-type has reduced the installation degree of difficulty, is applicable to major diameter spiral welded tube.
Description
Technical Field
The utility model relates to a nondestructive test's technical field, in particular to array magnetostrictive ultrasonic guided wave transducer.
Background
The spiral welded pipe is made up by rolling steel strip into pipe blank according to a certain spiral angle and seam-welding the pipe blank, and has good weldability and crack resistance, so that it can be extensively used in long-distance pipeline. The spiral welded pipe is affected by factors such as corrosion, external force damage and the like in the service process, so that various defects are generated in the spiral welded pipe. If defects in the spiral welded pipe cannot be found in time, leakage of a long-distance pipeline can be caused, and personal and property safety is endangered. In order to avoid accidents caused by defects of the spiral welded pipe, an effective in-service spiral welded pipe detection method must be sought.
The Chinese invention with the bulletin number of CN104880510B discloses a spiral adopting a spiral transducer
The method comprises arranging a spiral transducer along the spiral direction, controlling the excitation of the twisted guided wave by a guided wave detector, propagating along the spiral welded pipe in the axial direction, and receiving echo after encountering defect reflection; and determining the position of the defect according to the defect wave packet, and calculating to obtain the defect distance. The invention eliminates the phenomenon that the spiral weld signals continuously appear in the echoes when the traditional annular integrated magnetostrictive transducer carries out the guided wave detection, improves the signal-to-noise ratio of the echoes, enables the defect signals to be easily extracted and improves the reliability of the guided wave detection of the spiral welded pipe. The method is characterized in that the transducer is arranged along the spiral welding line of the spiral welding pipe, so that the transducer can be arranged in a whole circle in the circumferential direction of the spiral welding pipe, the length of the transducer is very long, and the conditions of high manufacturing cost, poor field construction process, inconvenience in application and the like of the transducer obviously exist particularly for a large-diameter spiral pipeline.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned prior art not enough, provide an array magnetostrictive ultrasonic guided wave transducer, through the even array distribution transduction subassembly in the circumference of pipeline, it aims at solving among the prior art magnetostrictive ultrasonic guided wave monitoring transducer of major diameter spiral welded tube with high costs, construction process is not good, use inconvenient and at the unsuitable technical problem of major diameter spiral welded tube.
In order to achieve the above object, the utility model provides an array type magnetostrictive ultrasonic guided wave transducer, which comprises a fixed shell and a transducing component; the energy conversion components are circumferentially and uniformly distributed on the outer wall of a pipeline in an array mode, and the fixed shell is wrapped outside the energy conversion components. Through the even array distribution of transducer assembly circumference, greatly reduced at the length of spiral welded tube axial direction installation, the transducer assembly of disconnect-type has reduced the installation degree of difficulty, is applicable to major diameter spiral welded tube.
Preferably, the transducer assembly comprises a magnetizing part fixed on the outer wall of the pipeline and a signal part connected with the magnetizing part. The magnetization unit receives a signal, and the signal unit transmits the signal.
Preferably, the magnetized portion includes a magnetostrictive tape adhered to the pipe by a coupling agent, a film layer adhered to an upper side of the magnetostrictive tape, and an induction coil adhered to an upper side of the film layer. The magnetostrictive strip is bonded with the pipeline through the coupling agent, so that the efficiency of energy conversion can be maximized; the thin film layer above the magnetostrictive strip can isolate the strip from air, so that the performance of the strip is ensured to be stable all the time, and the reliability and stability of the collected signals are greatly improved.
Preferably, the signal part comprises a signal cable connected to the induction coil and penetrating through the fixed shell and a waterproof cable joint installed on the fixed shell and penetrating through the signal cable; the joint of the induction coil and the signal cable is sealed through a sealant. The signal cable is led out through the waterproof cable joint and is conveniently connected with a detection instrument. The signal accuracy can be improved after the sealant is sealed.
Preferably, the fixed shell comprises a flexible organic material coating layer and a hoop; the flexible organic material coating layer is coated on the energy conversion assembly and then clings to the pipeline, and the anchor ear fastens the flexible organic material coating layer on the pipeline. The flexible organic material coating can be better fixed transducer assembly, prevent that transducer assembly and pipeline from appearing the too big influence detection effect in clearance. The staple bolt can firmly fix flexible organic material, prevents to become flexible.
Preferably, the head end and the tail end of the flexible organic material coating layer are connected in a sealing mode through a sealant. The head and the tail are connected through the sealant to form a closed inner space, so that the detection accuracy is improved.
Preferably, the flexible organic material coating layer is 1 mm-6 mm. The thickness of the flexible organic material coating layer is thin, and the influence on the detection effect is small.
Compared with the prior art, the utility model provides a pair of array magnetostrictive ultrasonic guided wave transducer's beneficial effect does: through the even array distribution of transducer assembly circumference, greatly reduced at the length of spiral welded tube axial direction installation, the transducer assembly of disconnect-type has reduced the installation degree of difficulty, is applicable to major diameter spiral welded tube. The helix angle of different helical welded tubes is accommodated by adjusting the angle of each transducer assembly. The magnetization unit receives a signal, and the signal unit transmits the signal. The signal cable is led out through the waterproof cable joint and is conveniently connected with a detection instrument. The signal accuracy can be improved after the sealant is sealed. The flexible organic material coating can be better fixed transducer assembly, prevent that transducer assembly and pipeline from appearing the too big influence detection effect in clearance. The staple bolt can firmly fix flexible organic material, prevents to become flexible. The head and the tail are connected through the sealant to form a closed inner space, so that the detection accuracy is improved. The thickness of the flexible organic material coating layer is thin, and the influence on the detection effect is small. The magnetostrictive strip is bonded with the pipeline through the coupling agent, so that the efficiency of energy conversion can be maximized; the thin film layer above the magnetostrictive strip can isolate the strip from air, so that the performance of the strip is ensured to be stable all the time, and the reliability and stability of the collected signals are greatly improved.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an array magnetostrictive ultrasonic guided wave transducer according to an embodiment of the present invention.
Fig. 2 is an exploded schematic view of an array magnetostrictive ultrasonic guided wave transducer according to an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating an installation of a transducer assembly of an array magnetostrictive ultrasonic guided wave transducer according to an embodiment of the present invention.
In the figure: 1. fixing the housing; 11. a flexible organic material coating layer; 12. hooping; 2. a transducer assembly; 21. a magnetizing section; 211. a magnetostrictive strip; 212. a thin film layer; 213. an induction coil; 22. a signal section; 221. a signal cable; 222. a waterproof cable joint; 3. a pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, an embodiment of the present invention provides an array type magnetostrictive ultrasonic guided wave transducer, including a fixed housing 1 and a transducer assembly 2. The transducer assemblies 2 are circumferentially and uniformly distributed on the outer wall of a pipeline 3 in an array mode, and the outer portions of the transducer assemblies 2 are coated with fixed shells 1. In particular, the transducer assembly 2 is bonded to the conduit 3 by a coupling agent. The pipeline 3 is a spiral welded pipe. The stationary housing 1 encloses the transducer assembly 2 and secures it to the pipe 3. The measurement accuracy is improved by adjusting the angle of each transducer assembly 3 to accommodate the helix angles of different helically welded tubes. The energy conversion component 3 is arranged in parallel with the spiral weld seam of the spiral welded pipe.
Referring to fig. 3, in an alternative embodiment, the transducer assembly 2 includes a magnetized portion 21 fixed on the outer wall of the pipe 3 and a signal portion 22 connected to the magnetized portion 21. Specifically, the magnetization portion 21 receives a signal, and the signal portion 22 is welded to the magnetization portion 21 to transmit the signal.
Referring to fig. 2, in an alternative embodiment, the magnetized portion 21 includes a magnetostrictive tape 211 adhered to the pipe 3 by a coupling agent, a film layer 212 adhered over the magnetostrictive tape 211, and an induction coil 213 adhered over the film layer 212. Specifically, the bias magnetic field of the magnetostrictive strip 211 is magnetized along the length direction, and the bias magnetic field orientation of the magnetostrictive strip needs to be the same. The magnetostrictive strip 211, the film layer 212 and the induction coil 213 are bonded together by a glue layer. The magnetostrictive strip 211 is bonded to the pipe 3 by a coupling agent to ensure maximum efficiency of energy conversion. The thin film layer 212 above the magnetostrictive strip 211 can isolate the magnetostrictive strip 211 from air, so that the performance of the magnetostrictive strip 211 is always stable, and the reliability and stability of the acquired signals are greatly improved.
Referring to fig. 2, in an alternative embodiment, the signal part 22 includes a signal cable 221 connected to the induction coil 213 and penetrating the fixed housing 1, and a waterproof cable connector 222 installed on the fixed housing 1 and penetrating the signal cable 221. The connection between the induction coil 213 and the signal cable 221 is sealed by a sealant. Specifically, the signal cable 221 is fixed by the waterproof cable connector 222 after passing through the fixing housing 1. After the induction coil 213 and the signal cable 221 are welded, the welding seam is sealed by sealant, so that the signal cable is not easy to scatter.
Referring to fig. 2, in an alternative embodiment, the stationary housing 1 includes a flexible organic material coating 11 and an anchor ear 12. The flexible organic material coating layer 11 is tightly attached to the pipeline 3 after coating the transducer assembly 2, and the anchor ear 12 fastens the flexible organic material coating layer 11 on the pipeline 3. Specifically, the anchor ear 12 fixes the flexible organic material coating layer 11 on the pipe 3 in a close manner. The flexible organic material coating layer 11 is sealed end to end through sealant to form a closed inner space, so that the measurement accuracy is improved.
Referring to fig. 2, in an alternative embodiment, the flexible organic material covering layer 11 is connected with the end portion thereof by a sealant. The flexible organic material coating 11 is 2 mm. Specifically, the thickness of the flexible organic material coating layer 11 should not be too large or too small, and is too small to be easily broken, so that the measurement accuracy is affected too much.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (8)
1. An array type magnetostrictive ultrasonic guided wave transducer comprises a fixed shell (1) and a transducer component (2); the method is characterized in that: the energy conversion components (2) are circumferentially and uniformly distributed on the outer wall of a pipeline (3) in an array mode, and the fixed shell (1) is coated outside the energy conversion components (2).
2. The arrayed magnetostrictive ultrasonic guided wave transducer according to claim 1, wherein: the energy conversion assembly (2) comprises a magnetization part (21) fixed on the outer wall of the pipeline (3) and a signal part (22) connected with the magnetization part (21).
3. The arrayed magnetostrictive ultrasonic guided wave transducer according to claim 2, wherein: the magnetizing part (21) comprises a magnetostrictive strip (211) adhered to the pipeline (3) through a coupling agent, a thin film layer (212) adhered to the upper portion of the magnetostrictive strip (211), and an induction coil (213) adhered to the upper portion of the thin film layer (212).
4. The array magnetostrictive ultrasonic guided wave transducer according to claim 3, wherein: the signal part (22) comprises a signal cable (221) which is connected to the induction coil (213) and penetrates through the fixed shell (1) and a waterproof cable joint (222) which is arranged on the fixed shell (1) and penetrates through the signal cable (221); the joint of the induction coil (213) and the signal cable (221) is sealed by a sealant.
5. The array magnetostrictive ultrasonic guided wave transducer according to claim 1 or 4, wherein: the fixed shell (1) comprises a flexible organic material coating layer (11) and a hoop (12); the energy conversion component (2) is coated by the flexible organic material coating layer (11) and then is tightly attached to the pipeline (3), and the anchor ear (12) fastens the flexible organic material coating layer (11) on the pipeline (3).
6. The arrayed magnetostrictive ultrasonic guided wave transducer according to claim 5, wherein: the head end and the tail end of the flexible organic material coating layer (11) are connected in a sealing mode through sealing glue.
7. The arrayed magnetostrictive ultrasonic guided wave transducer according to claim 5, wherein: the flexible organic material coating layer (11) is 1-6 mm.
8. The arrayed magnetostrictive ultrasonic guided wave transducer according to claim 6, wherein: the flexible organic material coating layer (11) is 1-6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922197816.9U CN211475528U (en) | 2019-12-10 | 2019-12-10 | Array type magnetostrictive ultrasonic guided wave transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922197816.9U CN211475528U (en) | 2019-12-10 | 2019-12-10 | Array type magnetostrictive ultrasonic guided wave transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211475528U true CN211475528U (en) | 2020-09-11 |
Family
ID=72373661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922197816.9U Active CN211475528U (en) | 2019-12-10 | 2019-12-10 | Array type magnetostrictive ultrasonic guided wave transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211475528U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324603A (en) * | 2021-04-16 | 2021-08-31 | 浙江纺织服装职业技术学院 | Detection apparatus for nonmetal pipe flow through state |
-
2019
- 2019-12-10 CN CN201922197816.9U patent/CN211475528U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324603A (en) * | 2021-04-16 | 2021-08-31 | 浙江纺织服装职业技术学院 | Detection apparatus for nonmetal pipe flow through state |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3186810B2 (en) | Apparatus for ultrasonic nondestructive inspection of elongated components having a substantially constant cross section | |
| US9134278B2 (en) | Method for testing the integrity of a flexible tubular pipe | |
| US4593568A (en) | Ultrasonic inspection of tube to tube plate welds | |
| CN105043312B (en) | The spherical densely covered formula Probe Ultrasonic Searching measuring thickness device of detection in a kind of pressure pipeline | |
| CN103512951B (en) | The method of low frequency ultrasound Guided waves Pipeline butt seam defect | |
| CN104515807A (en) | Pressure pipeline ultrasonic internal detection automation device | |
| CN107790363A (en) | Array multi-angle spiral class SH guided wave electromagnet ultrasonic changers | |
| CN211475528U (en) | Array type magnetostrictive ultrasonic guided wave transducer | |
| CN204214815U (en) | The ultrasonic interior detection automation equipment of a kind of pressure pipeline | |
| CN101339164A (en) | Ultrasonic damage-free checking focusing probe device | |
| CN113588774A (en) | Acousto-magnetic combined detector in pipeline | |
| CN107430096A (en) | Apparatus and method for checking pipeline | |
| CN117890472A (en) | Online rapid detection device and detection method for high-temperature pipeline | |
| CN111999392B (en) | Submarine pipeline ultrasonic guided wave omnidirectional focusing acoustic lens flexible transducer and detection method | |
| Bertoncini et al. | Overview and Experimental Evaluation of Magnetostrictive Transducers for Guided Wave Inspection | |
| CN204575596U (en) | A kind of spiral welded pipe twist and warping guided wave detection device adopting spiral transduction device | |
| CN209028039U (en) | It is a kind of can flexible self-adapting detecting pipeline low frequency ultrasound automatic flaw detection device | |
| CN105408688A (en) | Method for measuring thickness of boiler water tube | |
| CN106442719A (en) | Pipeline bended waveguide detection method and system based on spiral comb type transducer | |
| US11150221B2 (en) | Sensor system | |
| CN110346451B (en) | Ultrasonic guided wave monitoring transducer | |
| CN110672719A (en) | Phased array ultrasonic detection device for in-pipe detection | |
| CN203310810U (en) | Bicrystal tandem ultrasonic probe for small-diameter thin-wall pipe | |
| CN210690483U (en) | Piezoelectric ultrasonic flaw detection internal detector for long-distance pipeline | |
| CN113567559B (en) | Ultrasonic detection device and method for corrosion of inhaul cable steel wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |