CN201408181Y - Pressure Pipe Elbow Ultrasonic Probe with Rounded Wedge - Google Patents
Pressure Pipe Elbow Ultrasonic Probe with Rounded Wedge Download PDFInfo
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- CN201408181Y CN201408181Y CN2009200960513U CN200920096051U CN201408181Y CN 201408181 Y CN201408181 Y CN 201408181Y CN 2009200960513 U CN2009200960513 U CN 2009200960513U CN 200920096051 U CN200920096051 U CN 200920096051U CN 201408181 Y CN201408181 Y CN 201408181Y
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Abstract
本实用新型涉及一种具有圆拱形楔块的压力管道弯头超声波探头，由外壳、阻尼块、楔块和压电晶片组成，楔块安装在外壳的下端部，该楔块上端部凸起的一侧斜面表面固装压电晶片，该压电晶片上套装有阻尼块，压电晶片表面的导电镀层通过电缆与嵌装在外壳上的同轴电缆连接，在外壳内剩余的空间内填充吸声材料，其中所述楔块的下端面制成圆拱形。本实用新型结构简单、成本低廉，通过同轴电缆与后端的显示设备连接，由于其具有圆拱形的楔块，能更好的与压力管道弯头表面贴合，能探测出管道内部微小的损伤，而且灵敏度高，同时能适用于电厂内常见的不同直径的压力管道弯头内部损伤的检测。
The utility model relates to a pressure pipe elbow ultrasonic probe with a circular arched wedge, which is composed of a shell, a damping block, a wedge and a piezoelectric chip. The wedge is installed at the lower end of the shell, and the upper end of the wedge protrudes A piezoelectric chip is fixed on one side of the inclined surface, and a damping block is set on the piezoelectric chip. The conductive coating on the surface of the piezoelectric chip is connected to the coaxial cable embedded in the shell through a cable, and the remaining space in the shell is filled. Sound-absorbing material, wherein the lower end surface of the wedge is made into a circular arch. The utility model is simple in structure and low in cost. It is connected to the display device at the rear end through a coaxial cable. Because it has a round arched wedge, it can better fit the surface of the elbow of the pressure pipeline and can detect tiny cracks inside the pipeline. damage, and has high sensitivity, and can be applied to the detection of internal damage of pressure pipe elbows of different diameters that are common in power plants.
Description
Technical field
The utility model belongs to material defect-detecting equipment field, especially a kind of pressure pipeline elbow ultrasonic probe with dome-shaped voussoir.
Background technology
For building materials and metallic conduit, the damage of material internal appears after using under particular surroundings or the condition for a long time easily, such as: need bear the pressure pipeline of use in the power plant of High Temperature High Pressure etc.At present, realize by ultrasound wave, more commonly form, transmit signal by concentric cable between the two by ultrasonic probe and display device for the material internal damage check.Wherein the structure of ultrasonic probe is: mainly by shell, voussoir and piezoelectric chip are formed, voussoir is installed in the bottom of shell, one skew back face surface of this voussoir upper end projection installs piezoelectric chip, on piezoelectric chip, be set with damping block, piezoelectric chip is connected with concentric cable by cable, filling sucting sound material in the remaining space in the enclosure, above-mentioned voussoir is that pmma material is made, when reality is used, the lower surface of voussoir is flat, to carry out inside when flaw detection very convenient to having large surface area and more smooth parts, but it is less for surface area, the pipeline that outer rim curvature is higher, the above-mentioned ultrasonic probe that has a flat wedge structure is just very inconvenient, and because the two contact is not very tight, the result of detection is prone to error.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, with low cost, can be applicable to common different-diameter pressure pipeline elbow and the pressure pipeline elbow ultrasonic probe with dome-shaped voussoir that can accurately detect.
The technical scheme that the utility model is taked is:
A kind of pressure pipeline elbow ultrasonic probe with dome-shaped voussoir, form by shell, damping block, voussoir and piezoelectric chip, voussoir is installed in the bottom of shell, one skew back face surface of this voussoir upper end projection installs piezoelectric chip, be set with damping block on this piezoelectric chip, the conductive coating on piezoelectric chip surface is connected with concentric cable on being inlaid in shell by cable, filling sucting sound material in the remaining space in the enclosure, it is characterized in that: dome-shaped is made in the lower surface of described voussoir.
And the radius of curvature R of described voussoir dome-shaped lower surface is 66.5mm or 79.5mm.
And the surface area S of described piezoelectric chip is 9 * 9mm
2Or 13 * 13mm
2
And the frequency of operation of described piezoelectric chip is:
When S is 9 * 9mm
2The time, the frequency of operation F of piezoelectric chip is 5MHz;
When S is 13 * 13mm
2The time, the frequency of operation F of piezoelectric chip is 2.5MHz.
Advantage of the present utility model and good effect are:
1. this probe mainly is made up of shell, damping block, voussoir and piezoelectric chip, be that with the difference of existing probe the lower surface of voussoir makes dome-shaped, and the radius-of-curvature of this dome-shaped can be 66.5mm or 79.5mm, probe with these two radius-of-curvature goes for pressure pipeline elbow commonly used in the present power plant, in actual use, the testing staff does not need to carry the probe of a large amount of different sizes, and is very convenient.
2. the surface area S of piezoelectric chip can be 9 * 9mm in this probe
2Or 13 * 13mm
2, the piezoelectric chip of these two kinds of sizes is applicable to the pressure pipeline elbow of different-thickness commonly used in the power plant, the testing staff does not need to carry the different probe of a large amount of piezoelectric chip sizes, and is very convenient.
3. the frequency of operation F of piezoelectric chip and the surface area S use that cooperatively interacts in this probe makes probe can detect out the microlesion of power plant pressure pipeline elbow inside, and its testing result is more accurate, and sensitivity is higher.
4. the utility model is simple in structure, with low cost, be connected with the display device of rear end by concentric cable, because it has the voussoir of dome-shaped, can better fit with pressure pipeline elbow surface, can detect the small damage of pipe interior, and highly sensitive, can be applicable to the detection of the pressure pipeline elbow internal injury of different-diameter common in the power plant simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the synoptic diagram of panel radius-of-curvature.
Embodiment
Below in conjunction with embodiment, the utility model is further specified, following embodiment is illustrative, is not determinate, can not limit protection domain of the present utility model with following embodiment.
A kind of pressure pipeline elbow ultrasonic probe with dome-shaped voussoir, as shown in Figure 1, form by shell 6, damping block 3, voussoir 7 and piezoelectric chip 5, voussoir is installed in the bottom of shell, skew back face surface in voussoir upper end projection installs piezoelectric chip, on piezoelectric chip, be set with damping block, the conductive coating on the upper and lower surface of piezoelectric chip is connected with concentric cable 1 on being inlaid in shell by cable 2, filling sucting sound material 4 in the remaining space in the enclosure, innovation of the present utility model is: dome-shaped is made in the lower surface of voussoir.
This have the dome-shaped lower surface voussoir radius-of-curvature as shown in Figure 2, the foundation that radius of curvature R is selected is:
UT (Ultrasonic Testing) belongs to the contact method flaw detection, generally requires the surface of used probe to contact well with tested surface of the work for obtaining optimum detection sensitivity.Therefore require the radius-of-curvature of voussoir dome-shaped lower surface and the outer rim curvature of tested workpiece to match, draw R=66.5mm or R=79.5mm according to site test, the voussoir of these two radius-of-curvature goes for channel bends such as power plant φ 133, φ 159 commonly used and φ 219.
When detecting the workpiece of same thickness, compare with existing flat probe, the sound path of transmission was longer in ultrasound wave was popped one's head in the present embodiment, in order to guarantee enough detection sensitivities, the piezoelectric chip size should be tried one's best greatly, the thickness of the channel bend that uses in the power plant generally is divided into two kinds of thin plate (16mm is following) and cut deals (between the 16mm-46mm), and the surface area S that designs piezoelectric chip thus is 9 * 9mm
2Or 13 * 13mm
2To adapt to different pipe thicknesses.
Flaw detection process medium frequency is high more, and wavelength is short more, helps finding tiny flaw more.The material of power plant's channel bend generally is fit to frequency range 2.5～5.0MHz, and for taking into account the effect (N is the shear wave probe near field length) of 1.64N and the index request of self signal to noise ratio (S/N ratio) of popping one's head in, the frequency of operation of designing piezoelectric chip is simultaneously:
When S is 9 * 9mm
2The time, the frequency of operation F of piezoelectric chip is 5MHz, when S is 13 * 13mm
2The time, the frequency of operation F of piezoelectric chip is 2.5MHz.
Principle of work of the present utility model is:
The testing staff selects the suitable probe of radius-of-curvature for use, and with the surface of probe placement at channel bend to be tested, to pop one's head in and connect ultrasonic generator (ultra-sonic defect detector) by concentric cable, under inverse piezoelectric effect, piezoelectric chip is the vibration of generator tool under the electric signal of vibration, produce ultrasound wave, ultrasound wave penetrates in the voussoir, on voussoir and the surface of the work interface that contacts, (between probe and surface of the work, apply couplant usually) and reflect, ultrasound wave is entered in the workpiece detect to guarantee sound characteristics; When echoed signal, echo (mechanical wave) is after medium interface reflects, and NE BY ENERGY TRANSFER is given piezoelectric chip, and under the effect of piezoelectric effect, mechanical signal changes into electric signal, passes to oscillograph by concentric cable and shows.
Claims (4)
1, a kind of pressure pipeline elbow ultrasonic probe with dome-shaped voussoir, form by shell, damping block, voussoir and piezoelectric chip, voussoir is installed in the bottom of shell, one skew back face surface of this voussoir upper end projection installs piezoelectric chip, be set with damping block on this piezoelectric chip, the conductive coating on piezoelectric chip surface is connected with concentric cable on being inlaid in shell by cable, filling sucting sound material in the remaining space in the enclosure, it is characterized in that: dome-shaped is made in the lower surface of described voussoir.
2, the pressure pipeline elbow ultrasonic probe with dome-shaped voussoir according to claim 1, it is characterized in that: the radius of curvature R of described voussoir dome-shaped lower surface is 66.5mm or 79.5mm.
3, the pressure pipeline elbow ultrasonic probe with dome-shaped voussoir according to claim 1, it is characterized in that: the surface area S of described piezoelectric chip is 9 * 9mm
2Or 13 * 13mm
2
4, the pressure pipeline elbow ultrasonic probe with dome-shaped voussoir according to claim 3, it is characterized in that: the frequency of operation of described piezoelectric chip is:
When S is 9 * 9mm
2The time, the frequency of operation F of piezoelectric chip is 5MHz;
When S is 13 * 13mm
2The time, the frequency of operation F of piezoelectric chip is 2.5MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200960513U CN201408181Y (en) | 2009-03-26 | 2009-03-26 | Pressure Pipe Elbow Ultrasonic Probe with Rounded Wedge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200960513U CN201408181Y (en) | 2009-03-26 | 2009-03-26 | Pressure Pipe Elbow Ultrasonic Probe with Rounded Wedge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201408181Y true CN201408181Y (en) | 2010-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200960513U Expired - Lifetime CN201408181Y (en) | 2009-03-26 | 2009-03-26 | Pressure Pipe Elbow Ultrasonic Probe with Rounded Wedge |
Country Status (1)
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| CN (1) | CN201408181Y (en) |
Cited By (12)
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|---|---|---|---|---|
| CN102183586A (en) * | 2011-03-03 | 2011-09-14 | 山西潞安环保能源开发股份有限公司 | Probe special for scraper ring chain ultrasonic flaw detection |
| CN102608216A (en) * | 2012-04-13 | 2012-07-25 | 中国计量学院 | Ultrasonic nondestructive testing wedge block |
| CN105004790A (en) * | 2015-07-13 | 2015-10-28 | 中国人民解放军装甲兵工程学院 | Compressor impeller defect phased array ultrasonic detection method |
| CN105004788A (en) * | 2015-07-07 | 2015-10-28 | 广州特种承压设备检测研究院 | Thick wall pipeline ultrasonic detection apparatus and method thereof |
| CN105547991A (en) * | 2016-01-30 | 2016-05-04 | 湖南工程学院 | Steel pipe inner wall corrosion detecting probe and steel pipe inner wall corrosion detecting method |
| CN105987959A (en) * | 2016-06-30 | 2016-10-05 | 中国特种设备检测研究院 | Wedge block and detection method of weld joint of reactor heat exchanging pipe cap |
| CN106264605A (en) * | 2016-08-04 | 2017-01-04 | 无锡海斯凯尔医学技术有限公司 | Vltrasonic device and the device of generation mechanical vibration |
| CN107917953A (en) * | 2017-11-03 | 2018-04-17 | 中国石油天然气集团公司 | A kind of pressure break elbow moving part method of inspection |
| CN107991387A (en) * | 2017-10-31 | 2018-05-04 | 天津恒枫东晟科技有限公司 | A kind of pipe ultrasonic waveguide ripple detecting system |
| CN108008021A (en) * | 2018-01-09 | 2018-05-08 | 东莞理工学院 | For the supersonic guide-wave angle probe of rail examination and its method of detection |
| CN111220713A (en) * | 2020-04-07 | 2020-06-02 | 国电科学技术研究院有限公司 | Intelligent monitoring and detecting system and method for defects and stress of in-service wind power bolts |
| CN114152669A (en) * | 2021-11-12 | 2022-03-08 | 中车长江运输设备集团有限公司 | Probe and method for detecting bubble defects of composite sandwich plate |
-
2009
- 2009-03-26 CN CN2009200960513U patent/CN201408181Y/en not_active Expired - Lifetime
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183586A (en) * | 2011-03-03 | 2011-09-14 | 山西潞安环保能源开发股份有限公司 | Probe special for scraper ring chain ultrasonic flaw detection |
| CN102608216A (en) * | 2012-04-13 | 2012-07-25 | 中国计量学院 | Ultrasonic nondestructive testing wedge block |
| CN102608216B (en) * | 2012-04-13 | 2014-03-12 | 中国计量学院 | Ultrasonic nondestructive testing wedge block |
| CN105004788A (en) * | 2015-07-07 | 2015-10-28 | 广州特种承压设备检测研究院 | Thick wall pipeline ultrasonic detection apparatus and method thereof |
| CN105004790A (en) * | 2015-07-13 | 2015-10-28 | 中国人民解放军装甲兵工程学院 | Compressor impeller defect phased array ultrasonic detection method |
| CN105547991B (en) * | 2016-01-30 | 2018-11-09 | 湖南工程学院 | A kind of steel pipe inner wall Corrosion monitoring probe and steel pipe inner wall corrosion detecting method |
| CN105547991A (en) * | 2016-01-30 | 2016-05-04 | 湖南工程学院 | Steel pipe inner wall corrosion detecting probe and steel pipe inner wall corrosion detecting method |
| CN105987959A (en) * | 2016-06-30 | 2016-10-05 | 中国特种设备检测研究院 | Wedge block and detection method of weld joint of reactor heat exchanging pipe cap |
| CN106264605A (en) * | 2016-08-04 | 2017-01-04 | 无锡海斯凯尔医学技术有限公司 | Vltrasonic device and the device of generation mechanical vibration |
| WO2018024124A1 (en) * | 2016-08-04 | 2018-02-08 | 无锡海斯凯尔医学技术有限公司 | Ultrasonic device and device for generating mechanical vibration |
| US11090028B2 (en) | 2016-08-04 | 2021-08-17 | Wuxi Hisky Medical Technologies Co., Ltd. | Ultrasonic device and device for generating mechanical vibration |
| CN106264605B (en) * | 2016-08-04 | 2020-10-09 | 无锡海斯凯尔医学技术有限公司 | Ultrasonic device and device for generating mechanical vibration |
| CN107991387A (en) * | 2017-10-31 | 2018-05-04 | 天津恒枫东晟科技有限公司 | A kind of pipe ultrasonic waveguide ripple detecting system |
| CN107991387B (en) * | 2017-10-31 | 2021-07-20 | 天津恒枫东晟科技有限公司 | Pipeline ultrasonic guided wave detecting system |
| CN107917953B (en) * | 2017-11-03 | 2021-07-02 | 中国石油天然气集团公司 | Method for inspecting movable part of fracturing elbow |
| CN107917953A (en) * | 2017-11-03 | 2018-04-17 | 中国石油天然气集团公司 | A kind of pressure break elbow moving part method of inspection |
| CN108008021A (en) * | 2018-01-09 | 2018-05-08 | 东莞理工学院 | For the supersonic guide-wave angle probe of rail examination and its method of detection |
| CN108008021B (en) * | 2018-01-09 | 2023-10-13 | 东莞理工学院 | Ultrasonic guided wave oblique probe for rail flaw detection and its flaw detection method |
| CN111220713A (en) * | 2020-04-07 | 2020-06-02 | 国电科学技术研究院有限公司 | Intelligent monitoring and detecting system and method for defects and stress of in-service wind power bolts |
| CN111220713B (en) * | 2020-04-07 | 2024-03-29 | 国家能源集团科学技术研究院有限公司 | Intelligent supervision and detection system and method for defects and stress of in-service wind power bolts |
| CN114152669A (en) * | 2021-11-12 | 2022-03-08 | 中车长江运输设备集团有限公司 | Probe and method for detecting bubble defects of composite sandwich plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: TIANJIN ELECTRIC POWER CORP. Effective date: 20130522 Owner name: TIANJIN ELECTRIC POWER CORP. Effective date: 20130522 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300010 HEBEI, TIANJIN TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130522 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Tianjin Electric Power Corp. Address before: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee before: Tianjin Electric Power Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100217 |