CN204008569U - A kind of porcelain bushing ultrasonic wave detects uses twin crystal transverse wave double-bevel detector - Google Patents
A kind of porcelain bushing ultrasonic wave detects uses twin crystal transverse wave double-bevel detector Download PDFInfo
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- CN204008569U CN204008569U CN201420410143.5U CN201420410143U CN204008569U CN 204008569 U CN204008569 U CN 204008569U CN 201420410143 U CN201420410143 U CN 201420410143U CN 204008569 U CN204008569 U CN 204008569U
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- 239000013078 crystal Substances 0.000 title claims abstract description 15
- 229910052573 porcelain Inorganic materials 0.000 title claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims abstract description 26
- 239000000523 sample Substances 0.000 claims abstract description 11
- 239000003292 glue Substances 0.000 claims abstract description 8
- 239000007799 cork Substances 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 3
- 239000012212 insulator Substances 0.000 abstract description 15
- 238000001514 detection method Methods 0.000 abstract description 11
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000001303 quality assessment method Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to a kind of porcelain bushing ultrasonic wave detection twin crystal transverse wave double-bevel detector, the cube probing shell that comprises lower openings, lower housing portion opening part is arc contact surface, the inner side, top of arc contact surface is shaped with vertically upward, and enclosure interior space interval is become to the cork sound panel of left and right same structure, it in the space of left and right same structure, is sound penetrating wedge, the cammed surface of left and right sound penetrating wedge is swelled to sound panel place, center, protuberance angle θ=6 °, angle between the cammed surface of sound penetrating wedge and sound penetrating wedge top levels is 90 °-α=45 °, the bonding piezoelectric chip that is fixed with respectively in the cammed surface of left and right sound penetrating wedge, in the enclosure interior space on sound penetrating wedge and piezoelectric chip top, be filled with absorption glue, the cable of piezoelectric chip both sides is passed by case top through absorbing glue.The utility model can complete transmitting and the reception of shear wave signal, and probe and insulator coupling situation is better.
Description
Technical field
The utility model belongs to electric system technical field of nondestructive testing, and especially a kind of porcelain bushing ultrasonic wave detects uses twin crystal transverse wave double-bevel detector.
Background technology
Insulator is the vitals of electrical network and power plant electricity equipment.Due to reasons such as design, manufacture, installation, maintenance maintenance are improper, and be in operation and be influenced by the adverse circumstances, easily cause failure fracture, jeopardize the safe operation of electrical network.Therefore, strengthen effective detection and quality assessment to the in-service insulator of electrical network, most important to guaranteeing the safe and reliable economical operation of electrical network.Effective detection method for insulator is supercritical ultrasonics technology at present, but the ultrasound examination of insulator, without unified technical standard, cannot detect a large amount of defects effectively and timely at present.
Shear wave be compressional wave from first medium with the angle between first critical angle and second critical angle, incide and in second medium, produce wave mode conversion and obtain, in second medium without refracted longitudinal wave.In same material, shear wave velocity is about half of velocity of longitudinal wave, and therefore, for the ultrasound wave of same frequency, its wavelength also reduces half, and therefore better than compressional wave directive property, resolution is higher, and sensitivity is stronger.Angle probe shear wave detection method is usually used in detecting the defect angled with detection faces, therefore angle probe shear wave detection method can be for the detection of insulator, but because the design feature of insulator is hollow thin-wall, the inwall convex surface of insulator causes dispersing of shear wave incident acoustic beam, affect detection sensitivity, therefore the detection of insulator often adopts potable crystal probe shear wave detection method.Because the external diameter of insulator is different, therefore need to make one group of probe that cambered surface is different, probe is better contacted with insulator outer wall, reduce coupling loss.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, provides a kind of porcelain bushing ultrasonic wave to detect and uses twin crystal transverse wave double-bevel detector.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of porcelain bushing ultrasonic wave detects uses twin crystal transverse wave double-bevel detector, the cube probing shell that comprises lower openings, lower housing portion opening part is arc contact surface, the inner side, top of arc contact surface is shaped with vertically upward, and enclosure interior space interval is become to the cork sound panel of left and right same structure, it in the space of left and right same structure, is sound penetrating wedge, the cammed surface of left and right sound penetrating wedge is swelled to sound panel place, center, protuberance angle θ=6 °, angle between the cammed surface of sound penetrating wedge and sound penetrating wedge top levels is 90 °-α=45 °, the bonding piezoelectric chip that is fixed with respectively in the cammed surface of left and right sound penetrating wedge, in the enclosure interior space on sound penetrating wedge and piezoelectric chip top, be filled with absorption glue, the cable of piezoelectric chip both sides is passed by case top through absorbing glue.
And described twin crystal transverse wave double-bevel detector is six one group, the radius-of-curvature of six probe bottom arc contact surfaces is respectively 80mm, 100mm, 120mm, 150mm, 300mm and infinity.
And the size of described two piezoelectric chips is 8mm * 12mm, frequency is 5MHz.
And the thickness of described cork sound panel is 1mm.
Advantage of the present utility model and good effect are:
The utility model can complete transmitting and the reception of shear wave signal, and probe and insulator coupling situation is better.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the three-dimensional structure diagram of sound penetrating wedge part in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is implemented to be further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of porcelain bushing ultrasonic wave detects uses twin crystal transverse wave double-bevel detector, as shown in Figure 1, the cube probing shell 1 that comprises lower openings, lower housing portion opening part is arc contact surface 7, the inner side, top of arc contact surface is shaped with vertically upward, and enclosure interior space interval is become to the cork sound panel 5 of left and right same structure, it in the space of left and right same structure, is sound penetrating wedge 6, the cammed surface 3 of left and right sound penetrating wedge is swelled to sound panel place, center, as shown in Figure 2, protuberance angle θ=6 °, angle between the cammed surface of sound penetrating wedge and sound penetrating wedge top levels 9 is 90 °-α=45 °, the bonding piezoelectric chip 4 that is fixed with respectively in the cammed surface of left and right sound penetrating wedge, in the enclosure interior space on sound penetrating wedge and piezoelectric chip top, be filled with and absorb glue 2, the cable 8 of piezoelectric chip both sides has case top to pass through absorbing glue.
In concrete enforcement of the present utility model, for meeting the outside specification of various in-service insulators, make probe good with the coupling of insulator surface, described twin crystal transverse wave double-bevel detector is six one group, the radius-of-curvature of six probe bottom arc contact surfaces is respectively 80mm, 100mm, 120mm, 150mm, 300mm and infinity, can meet the detection of various in-service insulators.
In concrete enforcement of the present utility model, the size of described two piezoelectric chips is 8mm * 12mm, and frequency is 5MHz, completes the conversion of sound/electric signal by positive/negative-pressure electrical effect.
In concrete enforcement of the present utility model, the thickness of described cork sound panel is 1mm, and transmitting wafer and reception wafer are separated, and prevents that the signal of radiating portion signal and receiving unit from mixing interference.
In concrete enforcement of the present utility model, described sound penetrating wedge is that organic glass is made, and wedge angle is between compressional wave first critical angle and second critical angle, and the application is designed to 45 degree.
Claims (4)
1. a porcelain bushing ultrasonic wave detects and uses twin crystal transverse wave double-bevel detector, it is characterized in that comprising the cube probing shell of lower openings, lower housing portion opening part is arc contact surface, the inner side, top of arc contact surface is shaped with vertically upward, and enclosure interior space interval is become to the cork sound panel of left and right same structure, it in the space of left and right same structure, is sound penetrating wedge, the cammed surface of left and right sound penetrating wedge is swelled to sound panel place, center, protuberance angle θ=6 °, angle between the cammed surface of sound penetrating wedge and sound penetrating wedge top levels is 90 °-α=45 °, the bonding piezoelectric chip that is fixed with respectively in the cammed surface of left and right sound penetrating wedge, in the enclosure interior space on sound penetrating wedge and piezoelectric chip top, be filled with absorption glue, the cable of piezoelectric chip both sides is passed by case top through absorbing glue.
2. porcelain bushing ultrasonic wave according to claim 1 detects and uses twin crystal transverse wave double-bevel detector, it is characterized in that: described twin crystal transverse wave double-bevel detector is six one group, the radius-of-curvature of six probe bottom arc contact surfaces is respectively 80mm, 100mm, 120mm, 150mm, 300mm and infinity.
3. porcelain bushing ultrasonic wave according to claim 1 detects and uses twin crystal transverse wave double-bevel detector, it is characterized in that: the size of described two piezoelectric chips is 8mm * 12mm, and frequency is 5MHz.
4. porcelain bushing ultrasonic wave according to claim 1 detects and uses twin crystal transverse wave double-bevel detector, it is characterized in that: the thickness of described cork sound panel is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410143.5U CN204008569U (en) | 2014-07-24 | 2014-07-24 | A kind of porcelain bushing ultrasonic wave detects uses twin crystal transverse wave double-bevel detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410143.5U CN204008569U (en) | 2014-07-24 | 2014-07-24 | A kind of porcelain bushing ultrasonic wave detects uses twin crystal transverse wave double-bevel detector |
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| Publication Number | Publication Date |
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| CN204008569U true CN204008569U (en) | 2014-12-10 |
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| CN201420410143.5U Active CN204008569U (en) | 2014-07-24 | 2014-07-24 | A kind of porcelain bushing ultrasonic wave detects uses twin crystal transverse wave double-bevel detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458919A (en) * | 2014-12-03 | 2015-03-25 | 北京中电龙源环保科技有限公司 | Small K-value ultrasonic flaw detection dual-crystal probe and flaw detection method thereof |
| CN107102166A (en) * | 2017-03-28 | 2017-08-29 | 天津大学 | Ultrasonic Doppler multiphase flow velocity flow profile detection device |
-
2014
- 2014-07-24 CN CN201420410143.5U patent/CN204008569U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458919A (en) * | 2014-12-03 | 2015-03-25 | 北京中电龙源环保科技有限公司 | Small K-value ultrasonic flaw detection dual-crystal probe and flaw detection method thereof |
| CN107102166A (en) * | 2017-03-28 | 2017-08-29 | 天津大学 | Ultrasonic Doppler multiphase flow velocity flow profile detection device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee after: State Grid Corporation of China Patentee after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: State Grid Tianjin Electric Power Company |