CN202939161U - Portable ultrasonic series test block for detecting oil and gas conveying steel pipes - Google Patents
Portable ultrasonic series test block for detecting oil and gas conveying steel pipes Download PDFInfo
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- CN202939161U CN202939161U CN 201220694640 CN201220694640U CN202939161U CN 202939161 U CN202939161 U CN 202939161U CN 201220694640 CN201220694640 CN 201220694640 CN 201220694640 U CN201220694640 U CN 201220694640U CN 202939161 U CN202939161 U CN 202939161U
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Abstract
The utility model discloses a portable ultrasonic series test block for detecting oil and gas conveying steel pipes. The test block comprises first detection holes, second detection holes and more than two split test blocks with different wall thicknesses, wherein more than two split test blocks are manufactured on a whole test block; each first detection hole is formed in one end of the corresponding split test block, and each second detection hole is formed in the inner surface of the other end of the corresponding split test block; the first detection holes are vertical through holes and used for checking the flaw detection sensitivity of steel pipe weld joints; and the second detection holes are flat-bottom holes and used for detecting the flaw detection sensitivity of steel pipe base metal layers. The test block is portable, wide in detection coverage, simple in structure, light and handy and convenient to use, so that the detection efficiency is effectively improved, and the workload is reduced.
Description
Technical field
The utility model relates to metal Ultrasonic Flaw Defect field, and oil gas conveying steel pipe Site Detection industry especially relates to a kind of portable ultraphonic series test block that detects for the oil gas conveying steel pipe.
Background technology
Detect a kind of specification steel pipe in the sector at present and just must carry a cover test block, detect the plurality of specifications steel pipe and just must carry the test block of many covers.Site Detection carries the test blocks of many covers, test block quantity is many, volume large, heavy, carry inconvenience, coverage rate is little, use is inconvenient, waste material, testing cost is high.The present invention can effectively address the above problem.
The utility model content
The purpose of this utility model is to design a kind of novel portable ultraphonic series test block that is used for the detection of oil gas conveying steel pipe, addresses the above problem.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of portable ultraphonic series test block that detects for the oil gas conveying steel pipe comprises that first detects minute test block that hole and two above different wall are detected in hole, second, and test block in described minute of described two above different wall is produced in a whole test block; One end of each test block in described minute is provided with described first and detects the hole, and other end inside surface is provided with described second and detects the hole.
Described first detects the hole is
Perpendicular through hole is used for verification steel pipe seam flaw detection sensitivity; Described second detects the hole is
Flat-bottom hole is for detection of steel pipe mother metal layering flaw detection sensitivity.
Described second to detect the hole be on described minute test block inside surface one
Flat-bottom hole is positioned at the position, middle of corresponding wall thickness, and hole depth is half of wall thickness,
Flat-bottom hole is at least apart from test block edge 20mm.
Described first detects the hole at least apart from test block edge 20mm.
The wall thickness width of each minute test block must satisfy probe detection width, 40mm at least.
The arc length of the described portable ultraphonic series test block that detects for the oil gas conveying steel pipe must satisfy the turnover zone length of probe.
The arc length of the described portable ultraphonic series test block that detects for the oil gas conveying steel pipe is the maximum turnover zone length of wherein dimension wall thickness.
Described first detects hole and described second detects the position, middle that Kong Jun is positioned at corresponding wall thickness.
The test block of the utility model series is on the steel pipe of a certain caliber, and the detection weld seam is used
Perpendicular through hole, the layering of detection steel pipe mother metal
Flat-bottom hole, the specification wall thickness optimization that will commonly use (being detected) is produced in the same test block, and the user can select corresponding serial test block according to self product.Optimize the test block size, comprise thickness, width (arc length), length,
Perpendicular through hole,
The parameters such as flat-bottom hole, test block diameter.Therefore a cover test block can be applied to the ultrasonic inspection of plurality of specifications steel pipe simultaneously.
The test block of the utility model series mainly comprises
Perpendicular through hole,
Flat-bottom hole, in same test block, same external diameter, different range wall thickness, material are that the mild carbon steel of about average density 7.95g/cm3 is made and got final product.Can make the special making of family by test block, guarantee
Perpendicular through hole,
Flat-bottom hole is perpendicular to corresponding wall thickness, and precision can reach
The test block surface roughness can be controlled in 6.3 μ m, even more among a small circle.
The test block of the utility model series is produced on the test block of a plurality of different wall in a test block, and each wall thickness width is 40mm (considering the probe width) at least.One end of each wall thickness steel tube has one
Perpendicular through hole is positioned at the position, middle of corresponding wall thickness, for preventing test block edge reflections wave interference,
Perpendicular through hole is at least apart from test block edge 20mm; Steel pipe other end inside surface has one
Flat-bottom hole is positioned at the position, middle of corresponding wall thickness, and hole depth is half of wall thickness, considers the diameter of normal probe,
Flat-bottom hole is at least apart from test block edge 20mm.The arc length of test block satisfies the turnover zone length of probe, selects the maximum turnover zone length of this test block specification wall thickness.
The beneficial effects of the utility model can be summarized as follows:
1, the utility model is portable, detects broad covered area, simple in structure, Portable light, easy to use, thereby effectively improved detection efficiency, reduced working strength.
2, the utility model series test block and existing test block testing result reliability are equal to, and 1 cover test block of the present utility model can replace the existing many covers test block used that detects, easy to carry, detection broad covered area, and simple in structure, easy processing, due to portable, practical, thereby greatly improve detection efficiency, reduced working strength.
Description of drawings
Fig. 1 is the front view of the utility model series test block;
Fig. 2 is the vertical view of the utility model series test block;
Fig. 3 is that the utility model series test block front view A-A is to cut-open view;
Fig. 4 is that the utility model series test block front view B-B is to cut-open view;
Fig. 5 is that the utility model series test block front view C-C is to cut-open view.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
A kind of portable ultraphonic series test block for the detection of oil gas conveying steel pipe as extremely shown in Figure 5 in Fig. 1, comprise that first detects minute test block that hole and two above different wall are detected in hole, second, test block in described minute of described two above different wall is produced in a whole test block; One end of each test block in described minute is provided with described first and detects the hole, and other end inside surface is provided with described second and detects the hole.In a preferred embodiment, described first detect the hole and be
Perpendicular through hole is used for verification steel pipe seam flaw detection sensitivity; Described second detects the hole is
Flat-bottom hole is for detection of steel pipe mother metal layering flaw detection sensitivity.
In the embodiment that is more preferably, described second to detect the hole be on described minute test block inside surface one
Flat-bottom hole is positioned at the position, middle of corresponding wall thickness, and hole depth is half of wall thickness,
Flat-bottom hole is at least apart from test block edge 20mm.Described first detects the hole at least apart from test block edge 20mm.The wall thickness width of each minute test block must satisfy probe detection width, 40mm at least.The arc length of the described portable ultraphonic series test block that detects for the oil gas conveying steel pipe is the maximum turnover zone length of wherein dimension wall thickness.Described first detects hole and described second detects the position, middle that Kong Jun is positioned at corresponding wall thickness.
During actual the use, angle probe is aimed at
Perpendicular through hole is found out the highest direct wave, and it is transferred to the benchmark wave height, and mobile probe is found out the highest primary reflection, makes the DAC curve, and namely adjustment of sensitivity is good.Normal probe is aimed at
Flat-bottom hole is found out once (secondary) end ripple, it is transferred to reference sensitivity gets final product.
10 kinds of specification steel pipes of Site Detection:
Prior art need be made 10 cover test blocks.General assembly (TW) is 50--100Kg approximately, after adopting the utility model test block, only needs 1 cover test block to replace, and weight is 20Kg approximately, and very easy to use, detection efficiency improves greatly, has reduced working strength.
Table 1 has exemplified common American Standard outer diameter of steel pipes and the nominal wall thickness (user can select the serial test block of correspondence and the different wall steel pipe number that this test block comprises according to self products characteristics, and the user also can select outer diameter of steel pipes and the wall thickness of other specifications simultaneously) of the utility model series test block part in oil gas conveying steel pipe industry.The arc length of test block satisfies the turnover zone length (selecting the maximum turnover zone length of this test block specification wall thickness) of probe.
With
The specification steel pipe is example, K=2 probe turnover zone length S 〉=2.5KT+20mm 〉=2.5 * 2 * 17.5+20 〉=110mm;
With
The specification steel pipe is example, K=3, probe turnover zone length S 〉=2.5KT+20 〉=2.5 * 3 * 5.6+20 〉=62mm.
For each external diameter specification steel pipe, a cover utility model series test block can replace the test block of existing many covers, and test block weight can be relieved to original 60%-90% at least.
For example: take external diameter as the 711mm steel pipe as example, the series wall thickness is 7.1mm, 8.0mm, 8.7mm, 9.5mm, 10.5mm, 11.7mm, 12.7mm, 14.3mm, these 10 kinds of wall thickness specifications of 16mm, 17.5mm., prior art must be equipped with the 10 corresponding test blocks of cover, general assembly (TW) is 50-100Kg approximately, after adopting the utility model test block, only need 1 cover test block just to replace existing 10 cover test blocks, weight is 20Kg approximately.Not only the dependability effect is equal to, and smaller volume, portable, easy to use, detection efficiency improve greatly, has reduced working strength.
Table 1 oil gas conveying steel pipe external diameter commonly used and wall thickness table (mm)
Annotate: table 1 is listed part outer diameter of steel pipes and wall thickness, can select other external diameters and wall thickness according to actual conditions.
More than by the detailed description of concrete and preferred embodiment the utility model; but those skilled in the art should be understood that; the utility model is not limited to the above embodiment; all within spirit of the present utility model and principle; any modification of doing, be equal to replacement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. one kind is used for the portable ultraphonic series test block that the oil gas conveying steel pipe detects, it is characterized in that, comprise that first detects minute test block that hole and two above different wall are detected in hole, second, test block in described minute of described two above different wall is produced in a whole test block; The end one by one of each test block in described minute is provided with described first and detects the hole, and other end inside surface is provided with described second and detects the hole.
2. the portable ultraphonic series test block for the detection of oil gas conveying steel pipe according to claim 1, it is characterized in that: described first detects the hole is
Perpendicular through hole is used for verification steel pipe seam flaw detection sensitivity; Described second detects the hole is
Flat-bottom hole is for detection of steel pipe mother metal layering flaw detection sensitivity.
3. that states according to claim 2 is used for the portable ultraphonic series test block that the oil gas conveying steel pipe detects, and it is characterized in that: described second to detect the hole be on described minute test block inside surface one
Flat-bottom hole is positioned at the position, middle of corresponding wall thickness, and hole depth is half of wall thickness,
Flat-bottom hole is at least apart from test block edge 20mm.
4. the portable ultraphonic series test block that is used for the detection of oil gas conveying steel pipe of stating according to claim 1, it is characterized in that: described first detects the hole at least apart from test block edge 20mm.
5. the portable ultraphonic series test block for the detection of oil gas conveying steel pipe according to claim 1, it is characterized in that: the wall thickness width of each minute test block must satisfy probe detection width, 40mm at least.
6. that states according to claim 1 is used for the portable ultraphonic series test block that the oil gas conveying steel pipe detects, and it is characterized in that: the arc length of the described portable ultraphonic series test block that detects for the oil gas conveying steel pipe must satisfy the turnover zone length of probe.
7. the portable ultraphonic series test block that detects for the oil gas conveying steel pipe according to claim 6 is characterized in that: the arc length of the described portable ultraphonic series test block that detects for the oil gas conveying steel pipe is the maximum turnover zone length of dimension wall thickness wherein.
8. the portable ultraphonic series test block for the detection of oil gas conveying steel pipe according to claim 1 is characterized in that: described first detects hole and described second detects the position, middle that Kong Jun is positioned at corresponding wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220694640 CN202939161U (en) | 2012-12-14 | 2012-12-14 | Portable ultrasonic series test block for detecting oil and gas conveying steel pipes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220694640 CN202939161U (en) | 2012-12-14 | 2012-12-14 | Portable ultrasonic series test block for detecting oil and gas conveying steel pipes |
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| CN202939161U true CN202939161U (en) | 2013-05-15 |
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| CN 201220694640 Expired - Fee Related CN202939161U (en) | 2012-12-14 | 2012-12-14 | Portable ultrasonic series test block for detecting oil and gas conveying steel pipes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512958A (en) * | 2013-09-29 | 2014-01-15 | 哈尔滨汽轮机厂有限责任公司 | Ultrasonic flaw detection test block for welded joint of radial pin of nuclear power cylinder |
| US20160139081A2 (en) * | 2014-03-03 | 2016-05-19 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | System and method for a nondestructive testing of metal fusion welds at thin-walled pipes |
| CN109317854A (en) * | 2018-09-14 | 2019-02-12 | 中核核电运行管理有限公司 | Heavy water reactor spentnuclear fuel basket shroud RB-C2# welds comparison test block |
-
2012
- 2012-12-14 CN CN 201220694640 patent/CN202939161U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512958A (en) * | 2013-09-29 | 2014-01-15 | 哈尔滨汽轮机厂有限责任公司 | Ultrasonic flaw detection test block for welded joint of radial pin of nuclear power cylinder |
| CN103512958B (en) * | 2013-09-29 | 2015-09-16 | 哈尔滨汽轮机厂有限责任公司 | The test block of nuclear power cylinder radial peg weld seam supersonic detection |
| US20160139081A2 (en) * | 2014-03-03 | 2016-05-19 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | System and method for a nondestructive testing of metal fusion welds at thin-walled pipes |
| CN109317854A (en) * | 2018-09-14 | 2019-02-12 | 中核核电运行管理有限公司 | Heavy water reactor spentnuclear fuel basket shroud RB-C2# welds comparison test block |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20181214 |