CN217766250U - Chain type scanning device for detecting welding line phased array of pipeline in narrow space - Google Patents
Chain type scanning device for detecting welding line phased array of pipeline in narrow space Download PDFInfo
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- CN217766250U CN217766250U CN202221920081.3U CN202221920081U CN217766250U CN 217766250 U CN217766250 U CN 217766250U CN 202221920081 U CN202221920081 U CN 202221920081U CN 217766250 U CN217766250 U CN 217766250U
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Abstract
The utility model discloses a chain type scanning device for the phased array detection of pipeline welding seams in narrow spaces, which comprises a telescopic connecting buckle, a U-shaped probe wedge block clamping device, chain connecting pieces with different specifications, a connecting rolling wheel, an encoder gear and a buckle groove; one end of the telescopic connecting buckle is connected with one side of the U-shaped probe wedge block clamping device, the other end of the telescopic connecting buckle is used for being connected with the buckle groove in an end-to-end mode, the other side of the U-shaped probe wedge block clamping device is connected with one ends of chain connecting pieces of different specifications, the other ends of the chain connecting pieces of the different specifications are connected with one side of the encoder, the other side of the encoder is connected with the buckle groove, the chain connecting pieces of the different specifications are connected through connecting rolling wheels, and the encoder gear is connected with the encoder. The utility model discloses can be used to the various size and specification pipeline welding seam phased array of nuclear power station and detect, have simple structure, the operation of being convenient for, more be suitable for narrow and small space welding seam phased array and detect.
Description
Technical Field
The utility model belongs to the technical field of detection device, especially, relate to a be used for narrow and small space pipeline welding seam phased array to detect chain formula and sweep and look into device.
Background
As the therapeutic requirements of the device increase in the modern industry, the sensitivity of conventional ultrasound detection also needs to increase. Ultrasonic phased array detection is developed through ultrasonic detection. The probe for traditional ultrasonic detection only has one wafer, and the deflection angle of the sound beam is changed by adding wedges with different angles, so that sawtooth scanning is not needed in detection, the detection efficiency is high, a phased array has a focusing function, and the resolution and the sensitivity are higher than those of the conventional ultrasonic detection.
The pipeline is a key component of a power plant, wherein a main steam pipeline is a 'life pulse' for connecting a reactor steam generator and a steam turbine and is a power source of a generator, if welding defects exist in a welding opening of the steam pipeline, explosion events can occur, once explosion occurs, a large area can be filled instantly, and equipment and personnel in the steam pipeline can endanger nuclear safety under the serious condition of danger, so that uncontrollable disasters can be caused. The daily maintenance of the steam pipeline is an important basis for ensuring and prolonging the service life and avoiding accidents. The main means for detecting the welding quality of the steam pipeline is ultrasonic and ray detection, and the ray detection has radiation and has too long exposure time for some thick-wall pipelines, so the ray detection of the steam pipeline at the limited space part cannot be detected. If the distance between the phased array probe and the center of the welding seam during actual detection is larger than the set model deviation during phased array pipeline detection modeling, the ultrasonic sound field does not cover the whole welding seam area during actual phased array detection, so that detection leakage is caused, explosion accidents are caused, and in the using process, the detection accuracy is influenced by the cleanliness of the pipeline surface and the temperature of the pipeline surface.
The phased array ultrasonic detection technology is widely applied to actual detection due to the characteristics of strong controllability of sound beams, wide coverage range and the like, and can obviously improve the defect detection rate and the defect quantitative precision. At present, ultrasonic detection of the weld joint of the main pipeline of the nuclear power station generally adopts a mode of combining manual conventional ultrasonic detection and manual phased array ultrasonic detection.
However, the conventional phased array scanning device mainly has two problems in the detection process:
(1) Local unevenness exists on the surface of the pipeline welding line, deviation is easy to occur in the scanning process, misjudgment is easy to be caused to the detection result of the welding joint, and therefore the detection quality is influenced.
(2) Due to the fact that pipelines produced by different manufacturers are purchased in the construction period of a power plant, and some dimensional deviation exists in the manufacturing process of the pipelines. The traditional scanning device is designed according to the standard size without considering the size deviation of the pipeline, so that the scanning device cannot be used in a working site.
(3) Some supports and instruments can be arranged near the welding seam in the process of installing the pipeline, the traditional phased array scanning device is complex in structure, and the pipeline welding seam in a limited space cannot be detected due to large size.
The whole welding seam detection is difficult to complete once in the manual ultrasonic detection process, and the detection needs to be divided into multiple sections, so that the detection efficiency is low.
SUMMERY OF THE UTILITY MODEL
To above problem, the utility model aims at providing a be used for narrow and small space pipeline welding seam phased array to detect chain formula to sweep and look into device has solved that there is local unevenness in pipeline welding seam surface, sweeps and looks into the in-process and easily takes place skew and cause the erroneous judgement to the testing result. The pipelines produced by different manufacturers are purchased in the construction period of a power plant, and the pipelines have certain size deviation in the manufacturing process, so that the pipelines cannot be used in a working field. And the problems that some supports and instruments are near the welding seam, the welding seam of the pipeline in a limited space cannot be detected and the like exist in the process of installing the pipeline.
The utility model discloses a following technical scheme realizes:
a phased array detection chain type scanning device for a pipeline welding seam in a narrow space comprises a telescopic connecting buckle, a U-shaped probe wedge block clamping device, chain type connecting pieces of different specifications, a connecting rolling wheel, an encoder gear and a buckle groove;
one end of the telescopic connecting buckle is connected with one side of the U-shaped probe wedge block clamping device, the other end of the telescopic connecting buckle is used for being connected with the buckle groove in an end-to-end mode, the other side of the U-shaped probe wedge block clamping device is connected with one ends of chain connecting pieces of different specifications, the other ends of the chain connecting pieces of the different specifications are connected with one side of the encoder, the other side of the encoder is connected with the buckle groove, the chain connecting pieces of the different specifications are connected through connecting rolling wheels, and the encoder gear is connected with the encoder.
The utility model discloses further improvement lies in, still includes supplementary fixing device, and supplementary fixing device sets up at U-shaped probe voussoir clamping device rear portion for adjust U-shaped probe voussoir clamping device's width.
The utility model discloses further improvement lies in, still includes the welding seam locating rule, and the welding seam locating rule is connected with the encoder, arrives the distance that is detected the welding seam edge through observing the welding seam locating rule in detecting, and the route is swept and examined in time to the adjustment.
The utility model discloses further improvement lies in, connects the wheel that rolls and takes turns to by the cladding of rubber circle on the metal wheel and make, plays the buffering when using and prevents that the wearing and tearing back of the body examines work piece surface effect.
The utility model discloses further improvement lies in, and encoder gear size is greater than and connects the roll wheel size to the encoder gear synchronous rotation when guaranteeing to connect the roll wheel rotation.
The utility model discloses a further improvement lies in, U-shaped probe voussoir clamping device's screenshot is the U type form.
The utility model discloses further improvement lies in, the chain connection spare of different specifications is according to actual detection pipeline welding seam size free assembly combination.
The utility model discloses further improvement lies in, can rotate through connecting the wheel that rolls between the chain connection spare of different specifications.
Compared with the prior art, the utility model provides a pair of be used for narrow and small space pipeline welding seam phased array to detect chain formula and sweep and look into device has following profitable technological effect at least:
1. the utility model provides a be used for narrow and small space pipeline welding seam phased array to detect chain formula and sweep and look into device, chain connecting piece, encoder, fifth wheel, telescopic connection buckle, location chi, supplementary fixing device including U-shaped probe voussoir clamping device, different specifications. Thereby simple structure, small in size, be convenient for through narrow and small space, solved traditional phased array and swept the problem that looks into the device and can't pass through narrow and small space.
2. The utility model provides a be used for narrow and small space pipeline welding seam phased array to detect chain formula and sweep and look into device, retractable connection buckle has solved because the pipeline of the different producers production of power plant's construction phase purchase, and the pipeline also can have some size deviation in making moreover, and traditional sweeping looks into the device and does not consider the size deviation of pipeline according to the standard dimension design, causes the problem that can't use in the job site.
3. The utility model provides a be used for narrow and small space pipeline welding seam phased array to detect chain formula and sweep and look into device has solved the easy skew that takes place of the in-process of looking into of sweeping through having increased the welding seam location chi before U-shaped probe voussoir clamping device, causes the problem of erroneous judgement to the welded joint testing result easily.
To sum up, the utility model provides a pair of be used for narrow and small space pipeline welding seam phased array to detect chain formula scanning device can effectively avoid the influence of human factor and coupling inconsistency to the defect detection among the current manual ultrasonic testing, improves defect detectable rate and defect quantitative precision, and can carry out automatic scanning in succession to the trunk line welding seam of major diameter, and detection efficiency is showing and is improving, has significant to improving nuclear power station trunk line welding seam ultrasonic testing effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of a single connector according to the present invention.
Description of reference numerals:
1. a telescopic connecting buckle; 2. a U-shaped probe wedge clamping device; 3. chain type connecting pieces with different specifications; 4. connecting a rolling wheel; 5. an encoder; 6. an encoder gear; 7. a fastening groove; 8. a welding seam positioning ruler; 9. and an auxiliary fixing device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a pair of be used for narrow and small space pipeline welding seam phased array to detect chain formula and sweep and look into device, it mainly includes the essential element and constitutes: the device comprises a telescopic connecting buckle 1, a U-shaped probe wedge block clamping device 2, chain type connecting pieces 3 of different specifications, a connecting rolling wheel 4, an encoder 5, an encoder gear 6, a buckle groove 7, a welding seam positioning ruler 8 and an auxiliary fixing device 9. The telescopic connecting buckle 1 and the buckle groove 7 are connected end to end, and the chain type connecting pieces 3 with different specifications are freely assembled and combined according to the actual detection pipeline welding seam size, so that the requirement of detecting the welding seams of pipelines with various specifications is met; the auxiliary fixing device 9 is arranged at the rear part of the U-shaped probe wedge block clamping device 2 and is used for adjusting the width of the U-shaped probe wedge block clamping device 2 so as to better fix and stabilize the phased array probe wedge block; the connecting rolling wheel 4 is made by coating a rubber ring on a metal wheel, and plays a role in buffering and preventing abrasion on the surface of a back-checking workpiece when in use; the encoder gear 6 is connected with the encoder 5, the size of the encoder gear 6 is slightly larger than that of the connecting rolling wheel 4, so that the encoder gear 6 can synchronously rotate when the connecting rolling wheel 4 rotates, the detection leakage can be effectively avoided in the detection, and the detection quality is improved; the welding seam positioning ruler 8 and the encoder 5 are connected in the detection process, the scanning path is adjusted in time by observing the distance from the welding seam positioning ruler 8 to the edge of the detected welding seam, and the problem that the detection result of the welding joint is easily misjudged due to the fact that the welding seam positioning ruler is easy to deviate in the scanning process is solved.
The during operation according to the pipeline external diameter of on-the-spot physical examination demand, selects 3 combinations of chain connection spare of assorted different specifications with it, will the utility model discloses the device is placed on the pipeline surface at the pipeline welding seam edge of required detection, then makes telescopic connecting buckle 1 and 7 end to end in buckle groove the utility model discloses the device closely laminates with the pipeline surface. And in the scanning process, the device makes circular motion around the pipeline, and the device rotates for a circle to complete the comprehensive detection of the detected welding line.
Although the invention has been described in detail with respect to specific embodiments and general description, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of this invention without departing from the spirit thereof.
Claims (8)
1. A phased array detection chain type scanning device for a narrow space pipeline welding seam is characterized by comprising a telescopic connecting buckle (1), a U-shaped probe wedge block clamping device (2), chain type connecting pieces (3) of different specifications, a connecting rolling wheel (4), an encoder (5), an encoder gear (6) and a buckle groove (7);
one end of a telescopic connecting buckle (1) is connected with one side of a U-shaped probe wedge block clamping device (2), the other end of the telescopic connecting buckle is used for being connected with a buckle groove (7) end to end, the other side of the U-shaped probe wedge block clamping device (2) is connected with one ends of chain connecting pieces (3) of different specifications, the other ends of the chain connecting pieces (3) of different specifications are connected with one side of an encoder (5), the other side of the encoder (5) is connected with the buckle groove (7), the chain connecting pieces (3) of different specifications are connected through connecting rolling wheels (4), and an encoder gear (6) is connected with the encoder (5).
2. The phased array chain type scanning device for the narrow space pipeline weld joint detection according to claim 1, characterized by further comprising an auxiliary fixing device (9), wherein the auxiliary fixing device (9) is arranged at the rear part of the U-shaped probe wedge block clamping device (2) and used for adjusting the width of the U-shaped probe wedge block clamping device (2).
3. The chain type scanning device for the phased array detection of the welding seam of the pipeline in the narrow space according to claim 1, characterized by further comprising a welding seam positioning ruler (8), wherein the welding seam positioning ruler (8) is connected with the encoder (5), and a scanning path is adjusted in time by observing the distance from the welding seam positioning ruler (8) to the edge of the detected welding seam during detection.
4. The phased array chain type scanning device for the pipeline welding seam detection in the narrow space as claimed in claim 1, wherein the connecting rolling wheel (4) is made of a rubber ring coated on a metal wheel, and plays a role in buffering and preventing abrasion of the surface of a back-inspection workpiece in use.
5. The phased array chain type scanning device for the pipeline welding seam detection in the narrow space as claimed in claim 1, wherein the size of the encoder gear (6) is larger than that of the connecting rolling wheel (4) so as to ensure that the encoder gear (6) synchronously rotates when the connecting rolling wheel (4) rotates.
6. The phased array chain type scanning device for the pipeline welding seam detection in the narrow space as claimed in claim 1, wherein a screenshot of the U-shaped probe wedge clamping device (2) is in a U shape.
7. The phased array chain type scanning device for the pipeline weld joint detection in the narrow space as claimed in claim 1, wherein the chain type connecting pieces (3) with different specifications are freely assembled and combined according to the actual size of the pipeline weld joint detection.
8. The phased array chain type scanning device for the pipeline welding seam detection in the narrow space is characterized in that chain type connecting pieces (3) with different specifications can rotate through connecting rolling wheels (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221920081.3U CN217766250U (en) | 2022-07-22 | 2022-07-22 | Chain type scanning device for detecting welding line phased array of pipeline in narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221920081.3U CN217766250U (en) | 2022-07-22 | 2022-07-22 | Chain type scanning device for detecting welding line phased array of pipeline in narrow space |
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| Publication Number | Publication Date |
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| CN217766250U true CN217766250U (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221920081.3U Active CN217766250U (en) | 2022-07-22 | 2022-07-22 | Chain type scanning device for detecting welding line phased array of pipeline in narrow space |
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| Country | Link |
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| CN (1) | CN217766250U (en) |
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- 2022-07-22 CN CN202221920081.3U patent/CN217766250U/en active Active
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