CN205027680U - Circumferential weld ray detection device - Google Patents
Circumferential weld ray detection device Download PDFInfo
- Publication number
- CN205027680U CN205027680U CN201520724755.6U CN201520724755U CN205027680U CN 205027680 U CN205027680 U CN 205027680U CN 201520724755 U CN201520724755 U CN 201520724755U CN 205027680 U CN205027680 U CN 205027680U
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- Prior art keywords
- stereotype
- circumferential weld
- girth joint
- film
- shielding
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- Withdrawn - After Issue
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Abstract
The utility model belongs to the technical field of the welding seam detects, a circumferential weld ray detection device is related to, including gamma ray source (1), shelter from stereotype (2), circumferential weld (3), film (4), shielding stereotype (5), drive mechanism, its characterized in that, gamma ray source (1) sets up directly over sheltering from stereotype (2), shelter from stereotype (2) and set up in circumferential weld (3) top, shelter from stereotype (2) middle slot (w) of seting up, the vertical central line in hole (w) passes the centre of a circle of circumferential weld (3), and film (4) set up on the inner wall of circumferential weld (3), and as the transillumination, shielding stereotype (5) sets up in film (4) inboard, drive mechanism and the pipe connections who welds the circumferential weld, and the film, the shielding stereotype that drive circumferential weld and circumferential weld inside rotate. Compared with the prior art, the utility model, solved circumferential weld segmentation transillumination, the transillumination number of times is many, detection efficiency hangs down, detect scheduling problem with high costs, can effectively improve detection efficiency, reduces detection scheme, and scheme implementation is simple, easily.
Description
Technical field
The invention belongs to weld seam detection technical field, relate to a kind of girth joint ray detecting apparatus, particularly relate to a kind of caliber and be greater than the radiography pick-up unit of 89mm girth joint.
Background technology
Hoop open joint weld seam (abbreviation girth joint) is weld seam form common in pipeline, container, and its internal soundness mainly relies on radiography to detect and evaluates.It is one of method of five large conventional Non-Destructive Testings that radiography detects, the existing history for many years of application in detection ring weld seam, very ripe, diameter is greater than to the girth joint of 89mm, in order to consider Detection capability and annular open joint midfeather thickness on beam direction of transversal crack, the problems such as both sides wall thickness is large, according to GB3323-2005 " radiography of metal molten weldering welding joint ", the regulations such as JB4730.2-2005 " bearing device Non-Destructive Testing part 2: ray detection ", adopt segmentation, repeatedly transillumination has detected, such as caliber 100mm, the girth joint of wall thickness 3mm does ray detection, the detection number of times needed is: when conventional focal length 600mm, look in JB4730.2-2005 and scheme D.3< source single wall transillumination hoop butt welded joint outside, transillumination is than the transmiting time figure > of K=1.1, obtaining minimum transmiting time is 9 times, weld seam by this φ 100 is along the circumferential direction divided into 9 sections, 1 transillumination length is 35mm, 9 times transillumination completes detection, this is the situation of the requirement transillumination according to general detection sensitivity, if under high sensitivity technical requirement, detect number of times more, take 1 needs segmentation, paste font 3 minutes, 3 minutes transillumination time, develop a film 30 minutes time, 60 ~ 240 minutes drying times etc., amount to about 1.5 hours, so, existing girth joint ray detection method for detecting efficiency is low, testing cost is higher.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide the girth joint ray detecting apparatus that a kind of detection efficiency avoiding girth joint segmentation to detect is low, testing cost is high, improve detection efficiency.
In order to solve above technical matters, the invention provides following technical scheme:
A kind of girth joint ray detecting apparatus, comprise radiographic source (1), block stereotype (2), girth joint (3), film (4), shielding stereotype (5), gear train, it is characterized in that, described radiographic source (1) is arranged on and blocks directly over stereotype (2), the described stereotype (2) that blocks is arranged on girth joint (3) top, block in the middle of stereotype (2) and offer slot (w), the vertical center line of described hole (w) passes the center of circle of girth joint (3), film (4) is arranged on the inwall of girth joint (3), as transillumination, shielding stereotype (5) is arranged on film (4) inner side, gear train is connected with the pipe fitting being welded with girth joint, drive the film of girth joint and circumferential weld internal, shielding stereotype rotates.
Further, described shielding stereotype (5) is the cylindrical shape coaxial with girth joint.
Further, described hole (w) width is 3-8mm, length determines with girth joint width and heat-affected zone width.
Beneficial effect of the present invention is:
Compared with prior art, the problem such as solve girth joint segmentation transillumination, transmiting time is many, detection efficiency is low, testing cost is high, effectively can improve detection efficiency, reduce detection scheme in the present invention, and scheme implementation is simple, easily.
Accompanying drawing explanation
Fig. 1 is ray detection scheme schematic diagram.
In figure: 1, radiographic source, 2, block stereotype, 3, girth joint, 4, film, 5, shielding stereotype.
Embodiment
Below in conjunction with Figure of description, the specific embodiment of the present invention is described,
A kind of girth joint ray detecting apparatus, comprise radiographic source 1, block stereotype 2, girth joint 3, film 4, shielding stereotype 5, gear train, it is characterized in that, described radiographic source 1 is arranged on and blocks directly over stereotype 2, the described stereotype 2 that blocks is arranged on above girth joint 3, block in the middle of stereotype 2 and offer slot w, the vertical center line of described hole w passes the center of circle of girth joint 3, film 4 is arranged on the inwall of girth joint 3, as transillumination, shielding stereotype 5 is arranged on inside film 4, gear train is connected with the pipe fitting being welded with girth joint, drive the film of girth joint and circumferential weld internal, shielding stereotype rotates.
Further, described shielding stereotype 5 is cylindrical shapes coaxial with girth joint.
Further, described hole (w) width is 3-8mm, length determines with girth joint width and heat-affected zone width.
Adopt pick-up unit of the present invention and detection method, compared with traditional radiographic photograph detection method, have following advantage: transmiting time is minimum, be 1 time, detection efficiency is high; Beam and annular butt-weld near normal in transillumination process, and transillumination district variation in thickness is little, detection sensitivity is high.
A kind of girth joint ray detecting apparatus provided the application above and method are described in detail, apply embodiment herein to set forth the principle of the application and embodiment, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.
Claims (3)
1. a girth joint ray detecting apparatus, comprise radiographic source (1), block stereotype (2), girth joint (3), film (4), shielding stereotype (5), gear train, it is characterized in that, described radiographic source (1) is arranged on and blocks directly over stereotype (2), the described stereotype (2) that blocks is arranged on girth joint (3) top, block in the middle of stereotype (2) and offer slot (w), the vertical center line of described hole (w) passes the center of circle of girth joint (3), film (4) is arranged on the inwall of girth joint (3), as transillumination, shielding stereotype (5) is arranged on film (4) inner side, gear train is connected with the pipe fitting being welded with girth joint, drive the film of girth joint and circumferential weld internal, shielding stereotype rotates.
2. a kind of girth joint ray detecting apparatus according to claim 1, is characterized in that, described shielding stereotype (5) is the cylindrical shape coaxial with girth joint.
3. a kind of girth joint ray detecting apparatus according to claim 1, is characterized in that, described hole (w) width is 3-8mm, length is determined with girth joint width and heat-affected zone width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520724755.6U CN205027680U (en) | 2015-09-18 | 2015-09-18 | Circumferential weld ray detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520724755.6U CN205027680U (en) | 2015-09-18 | 2015-09-18 | Circumferential weld ray detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205027680U true CN205027680U (en) | 2016-02-10 |
Family
ID=55260203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520724755.6U Withdrawn - After Issue CN205027680U (en) | 2015-09-18 | 2015-09-18 | Circumferential weld ray detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205027680U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158281A (en) * | 2015-09-18 | 2015-12-16 | 宁夏共享集团股份有限公司 | Device and method for radio-graphically testing girth joint |
| CN109490341A (en) * | 2018-12-25 | 2019-03-19 | 四川中核艾瑞特工程检测有限公司 | A kind of ray detecting apparatus of nuclear island Leak-tight liner and the butt weld of penetration piece flange |
-
2015
- 2015-09-18 CN CN201520724755.6U patent/CN205027680U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158281A (en) * | 2015-09-18 | 2015-12-16 | 宁夏共享集团股份有限公司 | Device and method for radio-graphically testing girth joint |
| CN109490341A (en) * | 2018-12-25 | 2019-03-19 | 四川中核艾瑞特工程检测有限公司 | A kind of ray detecting apparatus of nuclear island Leak-tight liner and the butt weld of penetration piece flange |
| CN109490341B (en) * | 2018-12-25 | 2024-04-16 | 四川中核艾瑞特工程检测有限公司 | Radial detection device for butt welding seam between nuclear island steel lining and penetrating piece flange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160210 Effective date of abandoning: 20180227 |