CN204758546U - Short forward position probe suitable for pipeline tee bend ultrasonic detection - Google Patents
Short forward position probe suitable for pipeline tee bend ultrasonic detection Download PDFInfo
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- CN204758546U CN204758546U CN201520367691.9U CN201520367691U CN204758546U CN 204758546 U CN204758546 U CN 204758546U CN 201520367691 U CN201520367691 U CN 201520367691U CN 204758546 U CN204758546 U CN 204758546U
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- 239000000523 sample Substances 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 238000013016 damping Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 238000002604 ultrasonography Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 235000012431 wafers Nutrition 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 238000009659 non-destructive testing Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003466 welding 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 short forward position probe suitable for pipeline tee bend ultrasonic detection, including the probe casing, install the convex cable joint that makes progress at the last top surface of probe casing, the inside top of probe casing for the probe cavity, the below of probe cavity adorn admittedly with cavity axis of ordinates vertically horizontal damping piece, adorn the piezoelectricity wafer admittedly in the below of damping piece, adorn the inside velocity of sound admittedly for 1422ms's macromolecular material entrant sound wedge in the below of piezoelectricity wafer, the contained angle of inclined plane and level one -tenth 15.8 degrees is detected to the lower part of this entrant sound wedge. The utility model discloses the probe forward position can be shortened, the area of popping one's head in is reduced to reduce the angle of ejected wave, increased the emissive power that is close to the work piece part, obviously improved sensitivity, simultaneously, the convenient direction of confirming the acoustic beam.
Description
Technical field
The utility model belongs to electric system technical field of nondestructive testing, particularly a kind of short-front probe being applicable to branch pipe tee connection ultrasound examination.
Background technology
Branch pipe tee connection (Fig. 1) is the vitals in power station, is to adopt certain mode to be welded by two pipelines, is that its interior media is assembled and shunting place.Due to factors such as welding technology reason, the reasons of material own, very easily make the inner existing defects of threeway weld seam, cause potential safety hazard.Especially the threeway of the equipment such as main steam line, high-temperature reheat pipe road subjects High Temperature High Pressure, if its inner existing defects, very easily causes the great person and device security accident, brings serious loss.Therefore, need regularly to carry out Non-Destructive Testing to threeway fillet weld.Main employing magnetic or infiltration at present carries out surface nondestructive detection to threeway fillet weld, but cannot detect internal defects.The method of the Non-Destructive Testing of the normal weld seam the checked inherent vice adopted is ray detection method and ultrasonic Detection Method at present, and because threeway wall thickness is large, area of section change greatly not easily implements ray detection, can only adopt hyperacoustic method.But there is the flaw detection difficult points such as complex-shaped, cross section wall thickness change is large, specification is many, radius-of-curvature makes coupling variation in threeway, make compressional wave, climb ripple, detection that guided wave is not all suitable for threeway, shear wave is only had to there is the possibility implemented, and primary reflection should be adopted to detect a flaw, but shear wave probe area can be caused so excessive, be not easy to coupling, and the incident angle of shear wave is comparatively large, and defect is not easily located.Therefore shortening Front distance size and namely reduce probe area, and reduce the angle of incident wave, is the key designing and producing probe.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and proposes a kind of short-front probe being applicable to branch pipe tee connection ultrasound examination.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of short-front probe being applicable to branch pipe tee connection ultrasound examination, comprise probing shell, at the upper end face of probing shell, cable splice protruding upward is installed, probing shell inner upper for probe cavity, the horizontal damping block with cavity axis oriented normal is fixedly mounted with in the below of probe cavity, piezoelectric chip is fixedly mounted with in the below of damping block, be fixedly mounted with the macromolecular material sound penetrating wedge that the inner velocity of sound is 1422m/s in the below of piezoelectric chip, the detection inclined-plane, bottom of this sound penetrating wedge becomes the angle of 15.8 degree with level.
And described piezoelectric chip is the square piezoelectric chip of length of side 9mm, this piezoelectric chip becomes 15.8 degree of angles with detection inclined-plane.
And described damping block and piezoelectric chip adopt casting mode to fix.
Advantage of the present utility model and good effect are:
The utility model probe is made up of probing shell, piezoelectric chip, sound penetrating wedge, damping block, cable splice, wherein sound penetrating wedge is its inner velocity of sound is the macromolecular material of 1422m/s, this material supply section is used to shorten Front distance, reduce probe area, and can reduce the angle of ejected wave, piezoelectric chip is the square wafers of length of side 9mm, compared with traditional Circular wafer, add the emissive porwer near workpiece portion, can sensitivity be significantly improved, conveniently determine the direction of acoustic beam simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of power station branch pipe tee connection;
Fig. 2 is the structural representation of short-front probe of the present utility model.
Embodiment
Implement to be further described to the utility model below in conjunction with accompanying drawing, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of short-front probe being applicable to branch pipe tee connection ultrasound examination, as shown in Figure 2, comprise square tubular probing shell 2, at the upper end face of probing shell, cable splice 1 protruding upward is installed, probing shell inner upper for probe cavity 3, the horizontal damping block 4 with cavity axis oriented normal is fixedly mounted with in the below of probe cavity, piezoelectric chip 5 is fixedly mounted with in the below of damping block, the macromolecular material sound penetrating wedge 6 that the inner velocity of sound is 1422m/s is fixedly mounted with in the below of piezoelectric chip, this sound penetrating wedge is used to shorten Front distance, reduce probe area, and the angle of ejected wave can be reduced, the detection inclined-plane, bottom of this sound penetrating wedge becomes the angle of 15.8 degree with level, the angle of 15.8 degree is namely become with piezoelectric chip.
In concrete enforcement of the present utility model, described piezoelectric chip is the square wafers of length of side 9mm, compared with traditional Circular wafer, add the emissive porwer near workpiece portion, significantly improve sensitivity, conveniently determine the direction of acoustic beam, wafer is close to sound penetrating wedge simultaneously, and becomes 15.8 degree of angles with detection inclined-plane.
In concrete enforcement of the present utility model, described damping block and piezoelectric chip are cast on together, and damping block has very large damping action, have stronger sound absorption, can absorb the sound wave of wafer backward launched in a large number.
Claims (3)
1. one kind is applicable to the short-front probe of branch pipe tee connection ultrasound examination, it is characterized in that: comprise probing shell, at the upper end face of probing shell, cable splice protruding upward is installed, probing shell inner upper for probe cavity, the horizontal damping block with cavity axis oriented normal is fixedly mounted with in the below of probe cavity, piezoelectric chip is fixedly mounted with in the below of damping block, be fixedly mounted with the macromolecular material sound penetrating wedge that the inner velocity of sound is 1422m/s in the below of piezoelectric chip, the detection inclined-plane, bottom of this sound penetrating wedge becomes the angle of 15.8 degree with level.
2. the short-front probe being applicable to branch pipe tee connection ultrasound examination according to claim 1, is characterized in that: described piezoelectric chip is the square piezoelectric chip of length of side 9mm, and this piezoelectric chip becomes 15.8 degree of angles with detection inclined-plane.
3. the short-front probe being applicable to branch pipe tee connection ultrasound examination according to claim 1, is characterized in that: described damping block and piezoelectric chip adopt casting mode to fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520367691.9U CN204758546U (en) | 2015-06-01 | 2015-06-01 | Short forward position probe suitable for pipeline tee bend ultrasonic detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520367691.9U CN204758546U (en) | 2015-06-01 | 2015-06-01 | Short forward position probe suitable for pipeline tee bend ultrasonic detection |
Publications (1)
| Publication Number | Publication Date |
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| CN204758546U true CN204758546U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520367691.9U Active CN204758546U (en) | 2015-06-01 | 2015-06-01 | Short forward position probe suitable for pipeline tee bend ultrasonic detection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613732A (en) * | 2018-07-10 | 2018-10-02 | 广东省计量科学研究院（华南国家计量测试中心） | A kind of ultrasound imitates the acoustic velocity measurement device of material in Tissue Phantom |
| CN109946377A (en) * | 2019-03-21 | 2019-06-28 | 西安热工研究院有限公司 | A kind of supersonic detection method for big radius-thickness ratio steel hot-pressed three-way pipe fitting shoulder |
| CN114295723A (en) * | 2021-12-30 | 2022-04-08 | 中铁检验认证(常州)机车车辆配件检验站有限公司 | Inner hole ultrasonic detection probe and detection method |
-
2015
- 2015-06-01 CN CN201520367691.9U patent/CN204758546U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613732A (en) * | 2018-07-10 | 2018-10-02 | 广东省计量科学研究院（华南国家计量测试中心） | A kind of ultrasound imitates the acoustic velocity measurement device of material in Tissue Phantom |
| CN108613732B (en) * | 2018-07-10 | 2024-02-20 | 广东省计量科学研究院（华南国家计量测试中心） | Sound velocity measuring device for material in ultrasonic tissue-imitating model |
| CN109946377A (en) * | 2019-03-21 | 2019-06-28 | 西安热工研究院有限公司 | A kind of supersonic detection method for big radius-thickness ratio steel hot-pressed three-way pipe fitting shoulder |
| CN114295723A (en) * | 2021-12-30 | 2022-04-08 | 中铁检验认证(常州)机车车辆配件检验站有限公司 | Inner hole ultrasonic detection probe and detection method |
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