CN204405601U - A kind of defect inspection device - Google Patents
A kind of defect inspection device Download PDFInfo
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- CN204405601U CN204405601U CN201420847847.9U CN201420847847U CN204405601U CN 204405601 U CN204405601 U CN 204405601U CN 201420847847 U CN201420847847 U CN 201420847847U CN 204405601 U CN204405601 U CN 204405601U
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- probe rod
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Abstract
The utility model relates to a kind of defect inspection device, is applied to oil and gas pipes Non-Destructive Testing.Defect inspection device stores transport module form primarily of main body 1, bearing 2, angular displacement sensor 3, distance measuring sensor 4, probe rod 5, leaf spring 6, defect sensor 7, mileage module 8 and data acquisition, wherein: bearing 2 and angular displacement sensor 3, distance measuring sensor 4, probe rod 5, leaf spring 6, defect sensor 7 are multiple and are evenly arranged on the axis periphery of main body 1; Probe rod 5 one end is fixedly connected with defect sensor 7, the other end and bearing 2 hinge.The utility model defect inspection device, can detect pipeline internal strain and defect simultaneously, and probe and the gap of inner-walls of duct can be calculated, revise and detect defects detection value, be conducive to the accurate quantification identification detecting data, improve whole detection precision.
Description
Technical field
The utility model relates to a kind of defect inspection device, is applied to oil and gas pipes Non-Destructive Testing.
Background technology
Pipe-line is subject to the factor of interior media burn into external environmental factor, human factor in operational process, easily produces defect or the damages such as distortion, corrosion, needs regularly to detect pipeline, and these defects of Timeliness coverage, prevent oil and gas leakage.The more employing flux leakage detector of current oil and gas pipes defects detection or ultrasonic detector carry out, but cannot obtain deformation data in pipeline, also need to utilize deformation detector to carry out an internal strain and detect; Affect by pipeline is enterolithic carrying out Magnetic Flux Leakage Inspecting or Ultrasonic Detection process in addition, defect sensor cannot all the time with duct wall close contact, in time there is gap in defect sensor and duct wall, need to revise measured value, otherwise significantly can reduce the accuracy detecting data analysis.
Utility model content
The purpose of this utility model is for prior art Problems existing, provides a kind of defect inspection device that simultaneously can carry out defect inspection and shape changing detection.
Defect inspection device of the present utility model, store transport module primarily of main body 1, bearing 2, angular displacement sensor 3, distance measuring sensor 4, probe rod 5, leaf spring 6, defect sensor 7, mileage module 8 and data acquisition to form, wherein: main body 1 fixes soft leather cup at the axis two ends axially arranged; Bearing 2 and angular displacement sensor 3, distance measuring sensor 4, probe rod 5, leaf spring 6, defect sensor 7 are multiple and are evenly arranged on the axis periphery of main body 1; Data acquisition transport module is arranged on the body 1; Probe rod 5 one end is fixedly connected with defect sensor 7, the other end and bearing 2 hinge; Leaf spring 6 is arranged between probe rod 5 and main body 1 axis; Angular displacement sensor 3 is arranged on bearing 2, and forms angle rotatable engagement with probe rod 5; Distance measuring sensor 4 is located at bearing 2 top; Mileage module 8 is arranged on the axis of main body 1.
Described defect sensor 7 is Hall element or is sonac.
Outstanding advantage of the present utility model is: can detect pipeline internal strain and defect simultaneously, and the gap of probe and inner-walls of duct can be calculated, revise and detect defects detection value, be conducive to the accurate quantification identification detecting data, improve whole detection precision.
Accompanying drawing explanation
Fig. 1 is defect inspection device normal operating condition schematic diagram;
Fig. 2 is that defect inspection device runs into deformation state schematic diagram;
In figure: 1, main body, 2, bearing, 3, angular displacement sensor, 4, distance measuring sensor, 5, probe rod, 6, leaf spring, 7, defect sensor, 8, mileage module.
Embodiment
Now in conjunction with Figure of description, the utility model is further described:
With reference to attached Fig. 1 and 2, defect inspection device comprises main body 1, bearing 2, angular displacement sensor 3, distance measuring sensor 4, probe rod 5, leaf spring 6, defect sensor 7, mileage module 8 and data acquisition and stores transport module formation.Probe rod 5 one end is fixedly connected with defect sensor 7, one end joint angle displacement transducer 3, and simultaneously the inductive head of angular displacement sensor 3 is fixing with bearing 2, and bearing 2 top is provided with distance measuring sensor 4.Defect inspection device circumference is evenly arranged many group bearing 2, angular displacement sensor 3, distance measuring sensor 4, probe rod 5, leaf spring 6, defect sensor 7, and each group is a passage.Be provided with data acquisition in defect inspection apparatus main body 1 and store transport module (as comprising the PLC processor of power module and memory module, transport module), for sensor power and data record, transmission.If defects detection is Magnetic Flux Leakage Inspecting principle, then main body 1 also comprises magnetic circuit system, magnetizes duct wall.
The effect of defect inspection device detects pipe deforming and defect, detailed process is: defect inspection device puts into pipeline, and the medium utilizing pipeline to carry or the outside medium injected mineralization pressure difference before and after defect inspection device promotes defect inspection device and advances along pipeline.In advance process, probe rod 5 is outwards opened under the effect of leaf spring 6, causes defect sensor 7 close contact tube wall, defect sensor 7 recording defect signal.The inductive head of angular displacement sensor 3 is fixed on bearing 2, and angular displacement sensor 3 records the anglec of rotation between probe rod 5 and bearing 2.Distance measuring sensor 4 measures the distance that itself arrives inner-walls of duct.Mileage module measuring channel pick-up unit walking mileage.
Defect inspection data analysis process is:
Step 1: need the detection correction function of experimental method establishment defect sensor 5 under distance detection faces different gap before testing, F (t, A), (wherein t is the gap of defect sensor distance detection faces, and A is the detected value had in the situation of gap)
After detection completes, exchanges data is carried out by defect inspection device special purpose interface, read data and carry out pre-service, the signal of all angular displacement sensors 3 is converted into the angle value of probe rod 5 and bearing 2 according to calibration value, the signal of distance measuring sensor 4 is converted to the distance value of bearing perforate centre distance inner-walls of duct.
Step 2: a certain defective data reading Water demand, comprises mileage value X1, defective value A1, angle value B1, channel number N1, calculates H1, X2.
H1=L1×sin（B1）+H1，X2=X1-L1×cos（B1）
(wherein: L1 is probe rod length, H1 is the distance at thickness+bearing 2 perforate centre distance main body 1 center of defect sensor 7.）
Step 3: read the distance value C1 that mileage value is the N1 passage at X2 place, and calculate H2, t1.
H2=C1+H1，t1=H2-H1
Step 4: if t1 is less than f, (wherein f is probe rod location tolerance), then store the defective value that A1 is mileage X1 passage N1 place; If t1 is not less than f, then A2=F(t1, A1), store the defective value that A2 is mileage X1 passage N1 place.
Step 5: repeat step 2 to step 4, all data are processed.
Step 6: utilize numerical method to quantize defect, identify.
Claims (2)
1. a defect inspection device, store transport module primarily of main body (1), bearing (2), angular displacement sensor (3), distance measuring sensor (4), probe rod (5), leaf spring (6), defect sensor (7), mileage module (8) and data acquisition to form, it is characterized in that: main body (1) fixes soft leather cup at the axis two ends axially arranged; Bearing (2) and angular displacement sensor (3), distance measuring sensor (4), probe rod (5), leaf spring (6), defect sensor (7) are multiple and are evenly arranged on the axis periphery of main body (1); Data acquisition transport module is arranged in main body (1); Probe rod (5) one end is fixedly connected with defect sensor (7), the other end and bearing (2) hinge; Leaf spring (6) is arranged between probe rod (5) and main body (1) axis; Angular displacement sensor (3) is arranged on bearing (2), and forms angle rotatable engagement with probe rod (5); Distance measuring sensor (4) is located at bearing (2) top; Mileage module (8) is arranged on the axis of main body (1).
2. defect inspection device as claimed in claim 1, is characterized in that: defect sensor (7) is for Hall element or be sonac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420847847.9U CN204405601U (en) | 2014-12-29 | 2014-12-29 | A kind of defect inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420847847.9U CN204405601U (en) | 2014-12-29 | 2014-12-29 | A kind of defect inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204405601U true CN204405601U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420847847.9U Expired - Fee Related CN204405601U (en) | 2014-12-29 | 2014-12-29 | A kind of defect inspection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204405601U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806936A (en) * | 2014-12-29 | 2016-07-27 | 中石化胜利石油工程有限公司钻井工艺研究院 | Pipeline defect detection device and data analysis method |
| CN105866237A (en) * | 2016-04-22 | 2016-08-17 | 中国石油大学(北京) | Alternating-current magnetic field detection probe applied to inner detection of pipelines |
| CN105911134A (en) * | 2016-04-22 | 2016-08-31 | 中国石油大学(北京) | Alternating current electromagnetic field detection device for pipeline internal detection |
| CN106323153A (en) * | 2016-08-04 | 2017-01-11 | 南京航空航天大学 | Pipeline inner bore quality detection mini-sized mobile robot and control method therefor |
| CN107219050A (en) * | 2017-05-19 | 2017-09-29 | 亿信标准认证集团有限公司 | A kind of mattress combination property Automated inspection machine |
| CN108592846A (en) * | 2018-04-08 | 2018-09-28 | 中国石油天然气集团有限公司 | A kind of portable petroleum pipe inner wall defect measuring instrument |
| CN109557179A (en) * | 2018-11-27 | 2019-04-02 | 中国矿业大学 | Main shaft of hoister crackle on-line monitoring system and its working method |
| CN111076029A (en) * | 2019-12-31 | 2020-04-28 | 中国人民解放军92578部队 | Internal detection device for micro pipeline corrosion eddy |
-
2014
- 2014-12-29 CN CN201420847847.9U patent/CN204405601U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806936A (en) * | 2014-12-29 | 2016-07-27 | 中石化胜利石油工程有限公司钻井工艺研究院 | Pipeline defect detection device and data analysis method |
| CN105866237A (en) * | 2016-04-22 | 2016-08-17 | 中国石油大学(北京) | Alternating-current magnetic field detection probe applied to inner detection of pipelines |
| CN105911134A (en) * | 2016-04-22 | 2016-08-31 | 中国石油大学(北京) | Alternating current electromagnetic field detection device for pipeline internal detection |
| CN105911134B (en) * | 2016-04-22 | 2019-06-11 | 中国石油大学(北京) | Alternating current field measurement device for pipeline detection |
| CN105866237B (en) * | 2016-04-22 | 2019-06-11 | 中国石油大学(北京) | Alternating current field measurement for pipeline detection is popped one's head in |
| CN106323153A (en) * | 2016-08-04 | 2017-01-11 | 南京航空航天大学 | Pipeline inner bore quality detection mini-sized mobile robot and control method therefor |
| CN106323153B (en) * | 2016-08-04 | 2019-07-09 | 南京航空航天大学 | Miniature mobile robot and its control method for inner bore of pipeline quality testing |
| CN107219050A (en) * | 2017-05-19 | 2017-09-29 | 亿信标准认证集团有限公司 | A kind of mattress combination property Automated inspection machine |
| CN108592846A (en) * | 2018-04-08 | 2018-09-28 | 中国石油天然气集团有限公司 | A kind of portable petroleum pipe inner wall defect measuring instrument |
| CN108592846B (en) * | 2018-04-08 | 2020-01-07 | 中国石油天然气集团有限公司 | Portable petroleum pipe inner wall defect measuring instrument |
| CN109557179A (en) * | 2018-11-27 | 2019-04-02 | 中国矿业大学 | Main shaft of hoister crackle on-line monitoring system and its working method |
| CN111076029A (en) * | 2019-12-31 | 2020-04-28 | 中国人民解放军92578部队 | Internal detection device for micro pipeline corrosion eddy |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20201229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |