CN105784729A - X-ray detection method and device for small-diameter drum longitudinal welds - Google Patents
X-ray detection method and device for small-diameter drum longitudinal welds Download PDFInfo
- Publication number
- CN105784729A CN105784729A CN201610120051.7A CN201610120051A CN105784729A CN 105784729 A CN105784729 A CN 105784729A CN 201610120051 A CN201610120051 A CN 201610120051A CN 105784729 A CN105784729 A CN 105784729A
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- bar
- push rod
- ray
- supporting plate
- bracket
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
Abstract
The invention discloses an X-ray detection method and device for small-diameter drum longitudinal welds.The device comprises a stand composed of a push rod, a pull rod, a bracket and an elastic support.The bracket is composed of a rotary rod and a supporting plate fixed to the top of the rotary rod.The pull rod is hinged to the upper end of the rotary rod through a first bolt pair.The push rod is hinged to the lower end of the rotary rod through a second bolt pair.A pair of or more locating holes are formed in corresponding positions of the pull rod and the push rod.The elastic support is supported between the pull rod and the push rod.A camera bag filled with a film is fixed to the bracket of the stand, the rotation diameter of the stand can be adjusted according to the inner diameter of a tested drum, the rotation direction of the stand can be further reduced during measurement, the shrunk stand can stretch into the drum to conduct X-ray flaw detection on flaw detection portions accordingly, and therefore the X-ray detection work problems of the small-diameter drum longitudinal welds are effectively solved, and detection efficiency is improved.
Description
Technical field
The present invention relates to the detection method of X-ray of a kind of cylinders with small diameter longitudinal seam and device, belong to cylinders with small diameter X ray detection technique field.
Background technology
Pressure vessel is subject to the Sealing Arrangement of various fluid media (medium), and the harm of its sudden explosion is very serious, is ensureing product quality and is using secure context to need higher safety requirements and tightened up production standard compared with general industry equipment.Ray detection is a kind of important Dynamic Non-Destruction Measurement, is especially ensureing pressure vessel product quality and is using secure context to be particularly important.X ray for pressure container cylinder longitudinal seam detects, and when cylinder internal diameter is bigger, staff can be directly entered in cylinder and carry out pieces of cloth；When cylinder internal diameter is less, cylinder is longer, and on-the-spot available resources has in limited time, and staff generally makes simple rack by oneself, and camera bag is fixed on the flaw detection position in cylinder by support.Owing to self-control simple rack is generally heavy, mobile inconvenience, waste time and energy during operation, position inaccuracy, not wear-resisting, inconvenient maintenance, and do not adapt to the barrel dliameter of many specifications, particularly when workload is bigger, various weak points have had a strong impact on job schedule especially.
Summary of the invention
It is an object of the invention to: provide that a kind of structure is reliable, manufacture, easy to maintenance, simple to operate, use detection method of X-ray and the device of the cylinders with small diameter longitudinal seam of safety and economical and efficient, to overcome the deficiencies in the prior art.
Technical scheme: the detection method of X-ray of a kind of cylinders with small diameter longitudinal seam, the method is the camera bag installing film to be fixed on one in cylinder on the support of movement, camera bag to be made to coordinate X-ray production apparatus to carry out radiographic inspection again after arriving flaw detection position by traversing carriage.
In said method, before detection, first distance and the cylinder internal diameter size at body end surface extremely flaw detection position are measured, then support is assembled according to the internal diameter size of cylinder, described support includes push rod, pull bar, bracket and resiliency supported, wherein bracket be by rotate bar and be fixed on rotate masthead portion supporting plate constitute, pull bar with rotate bar upper end chain connection, push rod with rotate bar lower end chain connection；During detection, first the camera bag double faced adhesive tape installing film is fixed on the supporting plate of bracket, then pull bar is pulled, the rotation bar making pull bar and push rod end tilts, thus reducing the rotating diameter of whole support, push rod is now utilized to stretch in cylinder by the bracket being loaded with camera bag, push rod is made to be equal to the body end surface distance to position of detecting a flaw to the distance of movement in cylinder, then pull bar is pulled will to rotate bar righting again, so that the center of camera bag just aligns with flaw detection position, finally resiliency supported is supported between pull bar and push rod, the whole support of locking, so just by X-ray production apparatus, the flaw detection position of cylinder can be carried out radiographic inspection.
In said method, after flaw detection terminates, first take off resiliency supported, then pull pull bar, make the rotation bar of tie rod end tilt, again reduce the rotating diameter of whole support, so just support can be taken out from cylinder, and be placed under film viewer to observe the film in camera bag, evaluation.
In said method, the internal diameter of described cylinder is φ 300～φ 600mm, length is 1000～3000mm.
The x-ray detection device of the cylinders with small diameter longitudinal seam that a kind of said method builds, including by push rod, pull bar, the support that bracket and resiliency supported are constituted, described bracket be by rotate bar and be fixed on rotate masthead portion supporting plate constitute, pull bar is by the first bolt pair and the upper end chain connection rotating bar, push rod is by the second bolt pair and the lower end chain connection rotating bar, the correspondence position of pull bar and push rod has hole, more than one pair of location, hole, the location rear support in pull bar and push rod is inserted respectively between pull bar and push rod in the two ends of resiliency supported.
In said apparatus, described bracket includes rotating bar and being fixed on the supporting plate rotating masthead portion, wherein rotating bar is be made up of upper loop bar and lower loop bar, upper loop bar and lower loop bar are provided with more than one connecting hole, upper loop bar and lower loop bar are fastenedly connected by the 3rd bolt pair after the connecting hole on upper loop bar and lower loop bar, upper loop bar is welded with brace, brace is connected by the 4th bolt pair and supporting plate are fixing, bottom center at supporting plate is provided with block rubber, and upper loop bar is enclosed within block rubber and is supported on the bottom of supporting plate.
In said apparatus, described supporting plate is rubber slab, and the center of top at supporting plate is provided with placing trough.
In said apparatus, described resiliency supported includes adjusting rod and lower dolly bar, upper adjusting rod and lower dolly bar are provided with more than one spacing hole, upper adjusting rod and lower dolly bar are fastenedly connected by the 5th bolt pair after the spacing hole on upper adjusting rod and lower dolly bar, end points at upper adjusting rod is welded with pad, and spring is arranged between the 5th bolt pair and pad.
Owing to adopting technique scheme, it is an advantage of the current invention that: the present invention is that the camera bag that will be equipped with film is fixed on the bracket of support, and the rotating diameter of support can be adjusted according to the internal diameter of tested cylinder, the rotating diameter of support can also be reduced further during measurement, so just the support after reducing can be stretched in cylinder and flaw detection position is carried out x-ray inspection, thus efficiently solving an X ray detection operation difficult problem for cylinders with small diameter longitudinal seam, improve detection efficiency.Compared with prior art, the present invention not only have easy to detect laborsaving, work efficiency is high, the detection measured advantage of matter, but also has the advantage that can well adapt to different cylinder internal diameters.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of bracket in the present invention；
Fig. 3 is the structural representation of supporting plate in the present invention；
Fig. 4 is the structural representation that Elastic of the present invention supports；
Fig. 5 is structural representation during the invention process.
Description of reference numerals: 1-push rod, 2-pull bar, 3-bracket, 4-resiliency supported, 5-rotates bar, 6-supporting plate, 7-camera bag, 8-cylinder, 9-the first bolt pair, 10-the second bolt pair, 11-positions hole, the upper loop bar of 12-, loop bar under 13-, 14-connecting hole, 15-the 3rd bolt pair, 16-brace, 17-the 4th bolt pair, 18-block rubber, 19-placing trough, the upper adjusting rod of 20-, 21-lower dolly bar, 22-spring, 23-pad, 24-the 5th bolt pair, 25-spacing hole.
Detailed description of the invention
In order to make the object of the invention, technical scheme and advantage clearly, below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiments of the invention: the structural representation of the x-ray detection device of cylinders with small diameter longitudinal seam is as shown in Figure 1, including by push rod 1, pull bar 2, the support that bracket 3 and resiliency supported 4 are constituted, described bracket 3 be by rotate bar 5 and be fixed on rotate bar 5 top supporting plate 6 constitute, pull bar 2 is by the first bolt pair 9 and the upper end chain connection rotating bar 5, push rod 1 is by the second bolt pair 10 and the lower end chain connection rotating bar 5, the correspondence position of pull bar 2 and push rod 1 has hole, more than one pair of location 11, hole, location 11 rear support in pull bar 2 and push rod 1 is inserted respectively between pull bar 2 and push rod 1 in the two ends of resiliency supported 4.Referring to Fig. 2, described bracket 3 includes rotating bar 5 and being fixed on the supporting plate 6 rotating bar 5 top, wherein rotating bar 5 is be made up of upper loop bar 12 and lower loop bar 13, upper loop bar 12 and lower loop bar 13 are provided with more than one connecting hole 14, upper loop bar 12 and lower loop bar 13 are fastenedly connected by the 3rd bolt pair 15 after the connecting hole 14 on upper loop bar 12 and lower loop bar 13, upper loop bar 12 is welded with brace 16, brace 16 is connected by the 4th bolt pair 17 is fixing with supporting plate 6, bottom center at supporting plate 6 is provided with block rubber 18, upper loop bar 12 is enclosed within block rubber 18 and is supported on the bottom of supporting plate 6.Referring to Fig. 3, described supporting plate 6 is rubber slab, and the center of top at supporting plate 6 is provided with placing trough 19.Referring to Fig. 4, described resiliency supported 4 includes adjusting rod 20 and lower dolly bar 21, upper adjusting rod 20 and lower dolly bar 21 are provided with more than one spacing hole 25, upper adjusting rod 20 and lower dolly bar 21 are fastenedly connected by the 5th bolt pair 24 after the spacing hole 25 on upper adjusting rod 20 and lower dolly bar 21, end points at upper adjusting rod 20 is welded with pad 23, and spring 22 is arranged between the 5th bolt pair 24 and pad 23.
Referring to Fig. 5, when adopting said apparatus that cylinders with small diameter longitudinal seam carries out X ray detection, first measure distance and the cylinder 8 internal diameter size at cylinder 8 end face extremely flaw detection position, then assemble support according to the internal diameter size of cylinder 8.During detection, first camera bag 7 double faced adhesive tape installing film is fixed on the supporting plate 6 of bracket 3, makes camera bag 7 put into the placing trough 19 of supporting plate 6 center of top completely, it is to avoid camera bag 7 is scraped off in the process sent in cylinder 8；Then pull bar 2 is pulled, the rotation bar 5 making pull bar 2 and push rod 1 end tilts, thus reducing the rotating diameter of whole support, push rod 1 is now utilized to stretch in cylinder 8 by the bracket 3 being loaded with camera bag 7, push rod 1 is made to be equal to cylinder 8 end face distance to position of detecting a flaw to the distance of movement in cylinder 8, then pull bar 2 is pulled will to rotate bar 5 righting again, so that the center of camera bag 7 just aligns with flaw detection position, finally resiliency supported 4 is supported between pull bar 2 and push rod 1, the whole support of locking, so just by X-ray production apparatus, the flaw detection position of cylinder 8 can be carried out radiographic inspection.After flaw detection terminates, first take off resiliency supported 4, then pull pull bar 2, the rotation bar 5 making pull bar 2 end tilts, again reduce the rotating diameter of whole support, so just support can be taken out in cylinder 8, and be placed under film viewer to observe the film in camera bag 7, evaluation.Therefore, the present invention efficiently solves an X ray detection operation difficult problem for cylinders with small diameter longitudinal seam, improves detection efficiency.Compared with prior art, the present invention not only have easy to detect laborsaving, work efficiency is high, the detection measured advantage of matter, but also has the advantage that can well adapt to different cylinder internal diameters.It is φ 300～φ 600mm, length is the cylinders with small diameter of 1000～3000mm that the detection method of the present invention is particularly suited for internal diameter.
Claims (8)
1. the detection method of X-ray of a cylinders with small diameter longitudinal seam, it is characterized in that: the method is the camera bag installing film to be fixed on one in cylinder on the support of movement, camera bag to be made to coordinate X-ray production apparatus to carry out radiographic inspection again after arriving flaw detection position by traversing carriage.
2. the detection method of X-ray of cylinders with small diameter longitudinal seam according to claim 1, it is characterized in that: before detection, first distance and the cylinder internal diameter size at body end surface extremely flaw detection position are measured, then support is assembled according to the internal diameter size of cylinder, described support includes push rod, pull bar, bracket and resiliency supported, wherein bracket be by rotate bar and be fixed on rotate masthead portion supporting plate constitute, pull bar with rotate bar upper end chain connection, push rod with rotate bar lower end chain connection；During detection, first the camera bag double faced adhesive tape installing film is fixed on the supporting plate of bracket, then pull bar is pulled, the rotation bar making pull bar and push rod end tilts, thus reducing the rotating diameter of whole support, push rod is now utilized to stretch in cylinder by the bracket being loaded with camera bag, push rod is made to be equal to the body end surface distance to position of detecting a flaw to the distance of movement in cylinder, then pull bar is pulled will to rotate bar righting again, so that the center of camera bag just aligns with flaw detection position, finally resiliency supported is supported between pull bar and push rod, the whole support of locking, so just by X-ray production apparatus, the flaw detection position of cylinder can be carried out radiographic inspection.
3. the detection method of X-ray of cylinders with small diameter longitudinal seam according to claim 2, it is characterized in that: after flaw detection terminates, first take off resiliency supported, then pull bar is pulled, the rotation bar making tie rod end tilts, again reduce the rotating diameter of whole support, so just support can be taken out from cylinder, and be placed under film viewer to observe the film in camera bag, evaluation.
4. the detection method of X-ray of cylinders with small diameter longitudinal seam according to claim 1, it is characterised in that: the internal diameter of described cylinder is φ 300～φ 600mm, length is 1000～3000mm.
null5. the x-ray detection device of the cylinders with small diameter longitudinal seam of the method structure described in Claims 1 to 4 any one，It is characterized in that: include by push rod (1)、Pull bar (2)、The support that bracket (3) and resiliency supported (4) are constituted，Described bracket (3) be by rotate bar (5) and be fixed on rotate bar (5) top supporting plate (6) constitute，Pull bar (2) is by the first bolt pair (9) and the upper end chain connection rotating bar (5)，Push rod (1) is by the second bolt pair (10) and the lower end chain connection rotating bar (5)，The correspondence position of pull bar (2) and push rod (1) has hole, more than one pair of location (11)，Hole, location (11) rear support in pull bar (2) and push rod (1) is inserted respectively between pull bar (2) and push rod (1) in the two ends of resiliency supported (4).
null6. the x-ray detection device of cylinders with small diameter longitudinal seam according to claim 5，It is characterized in that: described bracket (3) includes rotating bar (5) and being fixed on the supporting plate (6) rotating bar (5) top，Wherein rotating bar (5) is be made up of upper loop bar (12) and lower loop bar (13)，Upper loop bar (12) and lower loop bar (13) are provided with more than one connecting hole (14)，Upper loop bar (12) and lower loop bar (13) are fastenedly connected after the connecting hole (14) on loop bar (12) and lower loop bar (13) by the 3rd bolt pair (15) traverse，Upper loop bar (12) is welded with brace (16)，Brace (16) is connected by the 4th bolt pair (17) and supporting plate (6) are fixing，Bottom center at supporting plate (6) is provided with block rubber (18)，Upper loop bar (12) is enclosed within block rubber (18) and is supported on the bottom of supporting plate (6).
7. the x-ray detection device of cylinders with small diameter longitudinal seam according to claim 6, it is characterised in that: described supporting plate (6) is rubber slab, and the center of top at supporting plate (6) is provided with placing trough (19).
8. the x-ray detection device of cylinders with small diameter longitudinal seam according to claim 5, it is characterized in that: described resiliency supported (4) includes adjusting rod (20) and lower dolly bar (21), upper adjusting rod (20) and lower dolly bar (21) are provided with more than one spacing hole (25), upper adjusting rod (20) and lower dolly bar (21) are fastenedly connected after the spacing hole (25) on adjusting rod (20) and lower dolly bar (21) by the 5th bolt pair (24) traverse, end points at upper adjusting rod (20) is welded with pad (23), spring (22) is arranged between the 5th bolt pair (24) and pad (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610120051.7A CN105784729B (en) | 2016-03-03 | 2016-03-03 | A kind of detection method of X-ray and device of cylinders with small diameter longitudinal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610120051.7A CN105784729B (en) | 2016-03-03 | 2016-03-03 | A kind of detection method of X-ray and device of cylinders with small diameter longitudinal seam |
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| Publication Number | Publication Date |
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| CN105784729A true CN105784729A (en) | 2016-07-20 |
| CN105784729B CN105784729B (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610120051.7A Expired - Fee Related CN105784729B (en) | 2016-03-03 | 2016-03-03 | A kind of detection method of X-ray and device of cylinders with small diameter longitudinal seam |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414540A (en) * | 2018-02-27 | 2018-08-17 | 岭东核电有限公司 | A kind of defect positioning method of million kilowatt nuclear power station BOSS weld seams |
| CN108645873A (en) * | 2018-05-14 | 2018-10-12 | 合肥聚能电物理高技术开发有限公司 | CFETR vacuum chambers beforehand research part cross weld automatic flaw detection positioning device and method of detection |
| CN112489837A (en) * | 2020-11-27 | 2021-03-12 | 中广核检测技术有限公司 | Sheet distribution device and method for in-service inspection of claw gasket of control rod drive mechanism |
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| CN205404450U (en) * | 2016-03-03 | 2016-07-27 | 贵州航天乌江机电设备有限责任公司 | X ray detection device of minor diameter barrel longitudinal seam |
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2016
- 2016-03-03 CN CN201610120051.7A patent/CN105784729B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4311905A (en) * | 1977-02-11 | 1982-01-19 | Mannesmann Aktiengesellschaft | Film strip positioning for X-ray testing of pipes |
| US4435829A (en) * | 1981-05-19 | 1984-03-06 | Johnson Service Company | Apparatus for radiographic examination of pipe welds |
| CN2784924Y (en) * | 2005-04-27 | 2006-05-31 | 沈阳重型机械集团有限责任公司 | Rotary support device for X-ray flaw detection and radiography of cylinder of double-in double-out coal mill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108414540A (en) * | 2018-02-27 | 2018-08-17 | 岭东核电有限公司 | A kind of defect positioning method of million kilowatt nuclear power station BOSS weld seams |
| CN108645873A (en) * | 2018-05-14 | 2018-10-12 | 合肥聚能电物理高技术开发有限公司 | CFETR vacuum chambers beforehand research part cross weld automatic flaw detection positioning device and method of detection |
| CN112489837A (en) * | 2020-11-27 | 2021-03-12 | 中广核检测技术有限公司 | Sheet distribution device and method for in-service inspection of claw gasket of control rod drive mechanism |
| CN112489837B (en) * | 2020-11-27 | 2024-04-02 | 中广核检测技术有限公司 | Sheet distributing device and method for in-service inspection of claw gaskets of control rod driving mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105784729B (en) | 2018-10-12 |
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Granted publication date: 20181012 Termination date: 20190303 |