CN208520820U - A pipeline longitudinal guided wave excitation device - Google Patents
A pipeline longitudinal guided wave excitation device Download PDFInfo
- Publication number
- CN208520820U CN208520820U CN201821056979.4U CN201821056979U CN208520820U CN 208520820 U CN208520820 U CN 208520820U CN 201821056979 U CN201821056979 U CN 201821056979U CN 208520820 U CN208520820 U CN 208520820U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- excitation coil
- magnetic yoke
- wave guide
- longitudinal wave
- 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.)
- Expired - Fee Related
Links
- 230000005284 excitation Effects 0.000 title claims abstract description 36
- 210000000003 hoof Anatomy 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to a kind of pipeline longitudinal wave guide exciting bank, including magnetic yoke, connector and excitation coil, the excitation coil connects to form a closed loop by connector, for being surrounded on outside tested pipeline；The magnetic yoke includes armature and two pieces of permanent magnets, and two pieces of permanent magnets are individually positioned in the two sides composition shape of a hoof of armature, and the spacing between two block permanent magnet is equal to the width of excitation coil；The magnetic yoke is fixed on tested pipeline outer peripheral surface across the excitation coil.The utility model can motivate longitudinal L (0,2) guided wave in the duct.
Description
Technical field
The utility model relates to pipeline inspection technology fields, more particularly to a kind of pipeline longitudinal wave guide exciting bank.
Background technique
Supersonic guide-wave is a kind of full particle pipeline inspection technology of long range, excites primary detecting distance up to up to a hundred
Rice, therefore be a kind of efficient pipeline inspection technology.Long range guided wave detection technology mainly has T (0,1) guided wave and L at this stage
(0,2) guided wave.Wherein L (0,2) guided wave and T (0,1) guided wave are compared, and the particle vibration direction of L (0,2) guided wave is axially, more to hold
Easily discovery circumferential defect signal, while its spread speed is fast, flaw indication is received by exciting bank earlier than interference signal, therefore
Flaw indication is easier identified.In the detection process of T (0,1) guided wave, arrangement is cumbersome, needs the detection of rich experiences
Personnel could preferably motivate T (0,1) guided wave.There are no set of device, and L (0,2) guided wave can be motivated to carry out pipe well in the market
Road detection.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of pipeline longitudinal wave guide exciting banks, can be in pipeline
Middle excitation longitudinal direction L (0,2) guided wave.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of pipeline longitudinal wave guide excitation dress
It sets, including magnetic yoke, connector and excitation coil, the excitation coil connects to form a closed loop by connector, for surrounding
In outside tested pipeline；The magnetic yoke includes armature and two pieces of permanent magnets, and two pieces of permanent magnets are individually positioned in the two sides composition of armature
The shape of a hoof, the spacing between two block permanent magnet are equal to the width of excitation coil；The magnetic yoke is solid across the excitation coil
It is scheduled on tested pipeline outer peripheral surface.
The excitation coil is 40P winding displacement, the FC-40P crimping head of both ends matching connection, and length is longer than the outer of tested pipeline
Perimeter.
The excitation coil is by belt or the fixed compacting of velcro outside tested pipeline.
The connector both ends are equipped with the plug of matching 40P winding displacement, one in two plugs and electric signal input line
It is connected.
The quantity of the magnetic yoke be tested pipeline outer perimeter divided by 50 integral multiple.
The armature is made of carbon steel.
Beneficial effect
Due to the adoption of the above technical solution, the utility model compared with prior art, has the following advantages that and accumulates
Pole effect: the utility model arrangement is simple, and using conveniently, whole device is a kind of dismountable structure, adapts to various outer diameter
Pipeline excitation L (0,2) guided wave is detected.In the detection process, the number for the outer diameter tube adjustment magnetic yoke that can be detected as needed
Amount and excitation coil length are realized and motivate longitudinal direction L (0,2) guided wave in the duct.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is the side view of Fig. 1.
Specific embodiment
The present invention will be further illustrated below in conjunction with specific embodiments.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction
Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen
It please the appended claims limited range.
The embodiments of the present invention is related to a kind of pipeline longitudinal direction L (0,2) guided wave exciting bank, such as Fig. 1 and Fig. 2 institute
Show, including magnetic yoke 1, connector 4 and excitation coil 5 form, which motivates in pipeline 6 generates longitudinal direction L (0,2) guided wave.
The excitation coil 5 is 40P winding displacement, and the FC-40P crimping head of both ends matching connection, 5 length of excitation coil is longer than pipe
Road outer perimeter length.Excitation coil forms a closed loop by the connection of connector 4, is surrounded on outside pipe, and passes through belt or evil spirit
The tools such as art patch are by the fixed compacting of excitation coil on pipeline.There is the plug of matching 40P winding displacement at 4 both ends of connector respectively,
One in two plugs is connected with electric signal input line, can input electric excitation signal by the electric signal input line.
The magnetic yoke 1 is made of one block of armature 2 and two pieces of permanent magnets 3, and two pieces of permanent magnets 3 are respectively placed in the two of armature 2
Side forms shape of a hoof magnetic yoke, and the spacing of two block permanent magnets 3 is equal to the width of excitation coil 5.The quantity of magnetic yoke 1 is by the outer of pipeline 6
Perimeter determine, optimal number be pipeline 6 outer perimeter divided by 50 integral multiple (unit mm).Armature in present embodiment uses
Carbon steel is made.
The utility model application method is as follows: the excitation coil 5 that length is longer than 6 outer perimeter of pipeline is connected by connector 4
It connects to form a closed loop, and the closed loop of formation is surrounded on outside pipeline 6, by tools such as belt or velcro by excitation coil 5
Fixed compacting is on pipeline 6.The electric excitation signal that the connection of electric signal input end 7 on connector 4 needs to input.
Two block permanent magnets 3 are placed respectively with the two sides of armature 2 on so that the spacing of two groups of permanent magnets 3 be equal to excitation line
The width of circle 5, composition completes a shape of a hoof magnetic yoke 1 at this time.Magnetic yoke 1 is placed on pipeline 6 across excitation coil 5.Magnetic yoke 1
The optimum layout quantity be pipeline 6 outer perimeter divided by 50 integral multiple (unit mm).After being passed through electric excitation signal, because of faraday
Electromagnetic induction will form magnetic field, and shape of a hoof magnetic yoke 1 can motivate longitudinal direction L (0,2) guided wave in the duct.
It is not difficult to find that the utility model arrangement is simple, using conveniently, whole device is a kind of dismountable structure, is adapted to
Pipeline excitation L (0,2) guided wave of various outer diameter is detected.In the detection process, the outer diameter tube tune that can be detected as needed
The quantity and excitation coil length of whole magnetic yoke are realized and motivate longitudinal direction L (0,2) guided wave in the duct.
Claims (6)
1. a kind of pipeline longitudinal wave guide exciting bank, including magnetic yoke (1), connector (4) and excitation coil (5), which is characterized in that
The excitation coil (5) forms a closed loop by connector (4) connection, for being surrounded on tested pipeline (6) outside；The magnetic yoke
Including armature and two pieces of permanent magnets, two pieces of permanent magnets (3) be individually positioned in armature (2) two sides composition the shape of a hoof, described two pieces
Spacing between permanent magnet (3) is equal to the width of excitation coil (5)；The magnetic yoke (1) is fixed on across the excitation coil (5)
On tested pipeline (6) outer peripheral surface.
2. pipeline longitudinal wave guide exciting bank according to claim 1, which is characterized in that the excitation coil (5) is 40P
Winding displacement, the FC-40P crimping head of both ends matching connection, length are longer than the outer perimeter of tested pipeline (6).
3. pipeline longitudinal wave guide exciting bank according to claim 1, which is characterized in that the excitation coil (5) passes through
The fixed compacting of belt or velcro tested pipeline (6) outside.
4. pipeline longitudinal wave guide exciting bank according to claim 1, which is characterized in that connector (4) both ends are equal
Equipped with the plug for matching 40P winding displacement, one in two plugs is connected with electric signal input line (7).
5. pipeline longitudinal wave guide exciting bank according to claim 1, which is characterized in that the quantity of the magnetic yoke (1) is
The outer perimeter of tested pipeline (6) divided by 50 integral multiple.
6. pipeline longitudinal wave guide exciting bank according to claim 1, which is characterized in that the armature (2) uses carbon
Steel is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821056979.4U CN208520820U (en) | 2018-07-05 | 2018-07-05 | A pipeline longitudinal guided wave excitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821056979.4U CN208520820U (en) | 2018-07-05 | 2018-07-05 | A pipeline longitudinal guided wave excitation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208520820U true CN208520820U (en) | 2019-02-19 |
Family
ID=65338164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821056979.4U Expired - Fee Related CN208520820U (en) | 2018-07-05 | 2018-07-05 | A pipeline longitudinal guided wave excitation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208520820U (en) |
-
2018
- 2018-07-05 CN CN201821056979.4U patent/CN208520820U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107422027B (en) | Torsional Mode Guided Wave Magnetostrictive Sensor Based on Double Ring Permanent Magnet Array | |
| WO2017080133A1 (en) | Open magnetic circuit-based method and device for detecting magnetostrictive guided-wave | |
| US20070090904A1 (en) | Method of generating and measuring torsional waves in cylindrical structure using magnetostrictive effect, and magnetostrictive transducer and structure diagnosis apparatus using the method | |
| CN106052922B (en) | A kind of more magnetic pole micro-magnetic sensors of steel band residual stress non-destructive testing | |
| CN108562642B (en) | Longitudinal mode ultrasonic guided wave electromagnetic transducer device, pipeline detection system and method | |
| CN104603612B (en) | Eddy current flaw detection probe and eddy current flaw inspection apparatus | |
| CN102348972A (en) | Eddy current flaw detection probe | |
| CN106290552B (en) | A steel plate magnetic flux leakage detection device based on rotating magnetization field | |
| Pan et al. | Analysis of the eccentric problem of wire rope magnetic flux leakage testing | |
| RU117186U1 (en) | MULTI-SECTION IN-TUBE MAGNETIC DEFECTOSCOPE | |
| RU2016109941A (en) | NUCLEAR MAGNETIC FLOWMETER AND METHOD OF OPERATION OF NUCLEAR MAGNETIC FLOWMETERS | |
| CN208520820U (en) | A pipeline longitudinal guided wave excitation device | |
| CN101852775B (en) | Device for adjusting magnetostrictive detection of longitudinal static magnetic field | |
| CN205210021U (en) | Magnetic induced shrinkage or elongation guided wave detects sensor and detecting system based on open magnetic circuit | |
| CN103217481A (en) | Magnetoacoustic tomography-with-magnetic-induction probe applying magnetostriction | |
| CN116930325B (en) | Electromagnetic and ultrasonic hybrid transducer for metal pipeline defect imaging | |
| CN118112094A (en) | Differential eddy current internal detection probe, array probe and defect detection device and method | |
| CN213903409U (en) | Magnetic flux leakage detection sensor excited by rotating magnetic field | |
| CN206281962U (en) | Device of the test interference fit to electric machine iron core yoke portion performance impact | |
| CN204594941U (en) | A kind of magnetic striction wave guide receiving sensor | |
| CN108871472A (en) | A kind of magnetic circuit device enhancing Electromagnetic Flow signal | |
| CN208313897U (en) | A kind of guided wave energizing apparatus based on MsS | |
| JP5721475B2 (en) | Interpolation probe for eddy current testing of ferromagnetic steel tubes | |
| CN106546932A (en) | Test device of the interference fit to electric machine iron core yoke portion performance impact | |
| CN108918653B (en) | Nondestructive testing device and method for ferromagnetic slender component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 Termination date: 20200705 |