CN110987974A - Multi-caliber pipeline weld joint radiation-proof flaw detection device - Google Patents
Multi-caliber pipeline weld joint radiation-proof flaw detection device Download PDFInfo
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- CN110987974A CN110987974A CN201911305164.4A CN201911305164A CN110987974A CN 110987974 A CN110987974 A CN 110987974A CN 201911305164 A CN201911305164 A CN 201911305164A CN 110987974 A CN110987974 A CN 110987974A
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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
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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
- G01N23/02—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 by transmitting the radiation through the material
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- Analysing Materials By The Use Of Radiation (AREA)
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Abstract
The invention discloses a multi-caliber pipeline weld joint radiation-proof flaw detection device, which comprises a base; a house body is arranged above the base; the two ends of the house body are provided with variable-diameter clamping plates; a flaw detection device is arranged in the house body; and the variable diameter clamping plate and the flaw detection device are provided with openings corresponding to the positions of the variable diameter clamping plate and the flaw detection device for placing pipes. Compared with the prior art, the invention has the beneficial effects that: the device can be suitable for the weld seam flaw detection of pipelines with various calibers, has good radiation-proof performance and has the function of disposable dead-angle-free flaw detection operation.
Description
Technical Field
The invention relates to the technical field of pipeline flaw detection equipment, in particular to a multi-caliber pipeline weld joint radiation-proof flaw detection device.
Background
At present, the radiographic inspection, one of five conventional nondestructive inspection methods, has a very wide application in industry, and is used for both metal inspection and non-metal inspection; defects possibly generated in the metal, such as pores, pinholes, inclusions, looseness, cracks, segregation, incomplete penetration and insufficient fusion and the like, can be inspected by rays; the application industry comprises special equipment, aerospace, ships, weapons, hydraulic complete equipment and bridge steel structures, wherein the X-ray flaw detection is formed by exciting high-voltage electricity by an X-ray tube.
For pipeline installation, pipelines need to be welded and assembled, but due to the fact that field operation and circular welding are not uniform, the width and the depth of a welding seam are not uniform, and therefore radiographic inspection needs to be carried out on the welding seam, in actual flaw detection, tools such as an iron stand and a skid are often used for mounting an X-ray machine which excites the X-ray, proper focal length parameters are adjusted to meet the requirements of flaw detection of different workpieces, then the workpieces to be inspected are exposed, but the erection of a flaw detection support is difficult, and the erected support is difficult to accurately position, so that the flaw detection error is very large; the X-ray machine irradiates the pipeline, so that the X-ray has certain reflection, contacts the radiation source at a short distance for a long time, and has great radiation influence on operators.
Meanwhile, a welding mode in the longitudinal direction and the axial direction also exists in the aspect of pipeline welding, in consideration of the precision during flaw detection, the conventional flaw detection device can only meet the flaw detection operation in a single direction and single longitudinal flaw detection or axial flaw detection, and can not perform one-time all-dimensional flaw detection on a pipeline at the same time without dead angles.
Therefore, in view of the above, it is necessary to provide a multi-diameter pipe weld anti-radiation flaw detection device to solve the above problems in practice.
Disclosure of Invention
The invention provides a multi-caliber pipeline weld joint radiation-proof flaw detection device which is characterized by being suitable for weld joint flaw detection of pipelines with various calibers, having good radiation-proof performance and having the function of one-time dead-corner-free flaw detection operation.
In order to achieve the purpose, the invention provides the following technical scheme: the multi-caliber pipeline weld joint radiation-proof flaw detection device comprises a base; a house body is arranged above the base; the two ends of the house body are provided with variable-diameter clamping plates; a flaw detection device is arranged in the house body; and the variable diameter clamping plate and the flaw detection device are provided with openings corresponding to the positions of the variable diameter clamping plate and the flaw detection device for placing pipes.
As optimization, the reducing splint comprises a shell, a rotating gear, a driving gear and a clamping device; the rotating gear is provided with a plurality of rotating grooves which surround the geometric center of the rotating gear at equal intervals; a limiting shaft is arranged on the rotating groove; the rotating gear rotates in the rotating groove through the limiting shaft; the rotating gear is also provided with a plurality of sliding grooves which surround the geometric center as a circle center at equal intervals; the distance from one end of the sliding groove to the geometric center of the rotating gear is larger than the distance from the other end of the sliding groove to the geometric center of the rotating gear; one end of the clamping device is clamped and embedded in the sliding groove through a sliding shaft; the other end of the clamping device is provided with a sliding device; the driving gear is meshed with the rotating gear, and the reducing driving motor 10 is connected to the driving gear.
As optimization, clamping shafts are further arranged on two sides of the clamping device; a clamping groove is arranged on the clamping shaft; the clamping device is matched with the clamping groove.
Preferably, the sliding device is a roller or a rolling ball.
As optimization, a screw rod is arranged between the two reducing clamping plates; any one end of the screw rod is connected with a screw rod driving motor; the screw rod penetrates through the flaw detection device and is connected with the flaw detection device through threads.
As optimization, the opening in the flaw detector is arranged in the flaw detector; the flaw detection device is also provided with a flaw detector driving motor; and the flaw detector is connected with the flaw detector driving motor through an adjusting screw rod.
Preferably, the whole room body is of a closed structure, and an observation window and a door are arranged at the side end of the room body.
Preferably, the housing of the house body and the variable diameter splint is made of lead.
Compared with the prior art, the invention has the following beneficial effects: firstly, pipes with different calibers and models can be adapted through the reducing device, so that the overall adaptability of the equipment is improved; secondly, the variable diameter device ensures the stability in the process through a uniform driving mode and a linkage mode so as to ensure the accuracy in flaw detection operation; the whole equipment adopts a closed structure, so that the radiation influence on personnel caused by the exposure of rays is prevented as much as possible; in the whole flaw detection process, the pipeline can be subjected to one-time dead-angle-free flaw detection, repeated operation is avoided, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic view of the appearance structure of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is a schematic structural diagram of the variable diameter splint of the present invention.
Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.
The device comprises a base 1, a variable diameter splint 2, a house body 3, a pipe 4, a flaw detection device 5, a screw rod driving motor 6, a screw rod 7, a flaw detector driving motor 8, a flaw detector 9, a variable diameter driving motor 10, a rotating gear 11, a driving gear 12, a rotating groove 13, a limiting shaft 14, a sliding groove 15, a sliding shaft 16, a clamping shaft 17, a roller 18, a clamping groove 19 and a rolling ball 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 4 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the multi-caliber pipeline weld joint radiation-proof flaw detection device comprises a base 1; a house body 3 is arranged above the base 1; the two ends of the house body 3 are provided with the reducing clamping plates 2; a flaw detection device 5 is arranged in the house body 3; the reducing splint 2 and the flaw detection device 5 are provided with holes corresponding to each other in position for placing the pipes 4.
The reducing splint 2 comprises a shell, a rotating gear 11, a driving gear 12 and a clamping device; the rotating gear 11 is provided with a plurality of rotating grooves 13 which are circumferentially and equidistantly arranged by taking the geometric center as a circle center; the rotating groove 13 is provided with a limiting shaft 14; the rotating gear 11 rotates in the rotating groove 13 through the limiting shaft 14; the rotating gear 11 is also provided with a plurality of sliding grooves 15 which are circumferentially and equidistantly arranged by taking the geometric center as a circle center; the distance from one end of the sliding groove 15 to the geometric center of the rotating gear is larger than the distance from the other end of the sliding groove 15 to the geometric center of the rotating gear 11; one end of the clamping device is clamped and embedded in the sliding groove 15 through a sliding shaft 16; the other end of the clamping device is provided with a sliding device; the driving gear 12 is meshed with the rotating gear 11, and the reducing driving motor 10 is connected to the driving gear 12.
Clamping shafts 17 are further arranged on two sides of the clamping device; a clamping groove 19 is arranged on the clamping shaft 17; the clamping device is matched with the clamping groove 19.
The sliding means are rollers 18, the rollers 18 being designed in the direction of horizontal travel of the tube 4 as shown in figure 2.
The opening inside the flaw detector 5 is arranged on a flaw detector 9; the flaw detector 5 is also provided with a flaw detector driving motor 8; and the flaw detector 9 is connected with the flaw detector driving motor 8 through an adjusting screw rod.
The whole body of the house body 3 is of a closed structure, and an observation window and a door are arranged at the side end of the house body.
The housing of the house body 3 and the reducing splint 2 is made of lead.
The working principle and the implementation method of the embodiment 1 are as follows:
the pipe 4 is placed into the holes in the variable diameter clamping plates 2 at two ends of the house body 3 and the holes in the flaw detection device 5, the variable diameter driving motor 10 is adjusted to drive the rotating gear 11 and the driving gear 12 to move, the driving gear 12 realizes relative rotation through the sliding groove 15 of the structure of the driving gear 12 to drive the clamping device to displace, the clamping device realizes the guiding and bearing supporting effects through the clamping shafts 17 at two sides of the clamping device, and the pipe passes through the rollers 18 on the clamping device to realize the relative horizontal transportation of the pipe.
The flaw detection method here is: the pipe 4 is horizontally moved by the rollers 18, and the flaw detector 9 detects an axial weld on the pipe 4. The position of the flaw detector 9 is controlled by an adjusting screw of the flaw detector driving motor 8.
The method has the advantages that: the flaw detection device 5 is always positioned in the center of the house body 3, and meanwhile, the house body 3 and the shell of the reducing clamping plate 2 are made of lead, so that rays can be effectively isolated, and a protection effect is achieved.
Example 2:
the multi-caliber pipeline weld joint radiation-proof flaw detection device comprises a base 1; a house body 3 is arranged above the base 1; the two ends of the house body 3 are provided with the reducing clamping plates 2; a flaw detection device 5 is arranged in the house body 3; the reducing splint 2 and the flaw detection device 5 are provided with holes corresponding to each other in position for placing the pipes 4.
The reducing splint 2 comprises a shell, a rotating gear 11, a driving gear 12 and a clamping device; the rotating gear 11 is provided with a plurality of rotating grooves 13 which are circumferentially and equidistantly arranged by taking the geometric center as a circle center; the rotating groove 13 is provided with a limiting shaft 14; the rotating gear 11 rotates in the rotating groove 13 through the limiting shaft 14; the rotating gear 11 is also provided with a plurality of sliding grooves 15 which are circumferentially and equidistantly arranged by taking the geometric center as a circle center; the distance from one end of the sliding groove 15 to the geometric center of the rotating gear is larger than the distance from the other end of the sliding groove 15 to the geometric center of the rotating gear 11; one end of the clamping device is clamped and embedded in the sliding groove 15 through a sliding shaft 16; the other end of the clamping device is provided with a sliding device; the driving gear 12 is meshed with the rotating gear 11, and the reducing driving motor 10 is connected to the driving gear 12.
Clamping shafts 17 are further arranged on two sides of the clamping device; a clamping groove 19 is arranged on the clamping shaft 17; the clamping device is matched with the clamping groove 19.
The sliding means are balls 20 as shown in fig. 4 or rollers 18 designed in a direction corresponding to the direction of rotation of the tube 4 are not shown.
A screw rod 7 is arranged between the two reducing clamping plates 2; any one end of the screw rod 7 is connected with a screw rod driving motor 6; the screw rod 7 penetrates through the flaw detection device 5 and is connected with the flaw detection device through threads.
The opening inside the flaw detector 5 is arranged on a flaw detector 9; the flaw detector 5 is also provided with a flaw detector driving motor 8; and the flaw detector 9 is connected with the flaw detector driving motor 8 through an adjusting screw rod.
The whole body of the house body 3 is of a closed structure, and an observation window and a door are arranged at the side end of the house body.
The housing of the house body 3 and the reducing splint 2 is made of lead.
The working principle and the implementation method of the embodiment 2 are as follows:
the working principle of the pipe 4 placement and diameter changing device is as in embodiment 1, and therefore will not be described in detail, and the sliding device is specifically designed as a rolling ball 20 or a roller 18 consistent with the rotation direction of the pipe 4, so as to enable the pipe 4 to satisfy the radial rotation motion.
Further, the flaw detection device 5 is designed to be a movable structure by a screw 7.
The flaw detection method here is: the tube 4 can rotate by the rolling balls 20 or the rollers 18 which are consistent with the rotation direction of the tube 4, and the flaw detector 9 detects the radial welding seam on the tube 4. The position of the flaw detector 9 is controlled by an adjusting screw of the flaw detector driving motor 8. The tube 4 may be a multi-section radial seam type structure, so that the flaw detection device 5 can be moved by the screw rod 7 to meet the detection requirement.
Example 3:
example 3 differs from example 2 in that the sliding means is a ball 20 as shown in figure 4.
Working principle and implementation method of embodiment 3: the working principle is as in embodiment 1 and embodiment 2, and therefore, the description is omitted.
The flaw detection method here is: a clamp and a pipe rotating motor are additionally arranged at one end of the pipe 4, a gear structure is arranged outside the clamp, the gear structure of the clamp is meshed with a transmission chain or a transmission gear, and the pipe rotating motor drives the pipe 4 to rotate. The flaw detection device 5 moves between the two reducing clamping plates 2 through the screw rod 7 while the pipe 4 rotates, and the detection mode can realize one-time flaw detection without dead angles on the pipe.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. Many bore pipeline welding seam radiation protection device of detecting a flaw, its characterized in that: comprises a base (1); a house body (3) is arranged above the base (1); the two ends of the house body (3) are provided with variable diameter splints (2); a flaw detection device (5) is arranged in the house body (3); the reducing splint (2) and the flaw detection device (5) are provided with holes corresponding to each other in position for placing the pipes (4).
2. The multi-caliber pipeline weld joint radiation-proof flaw detection device of claim 1, which is characterized in that: the reducing splint (2) comprises a shell, a rotating gear (11), a driving gear (12) and a clamping device; the rotating gear (11) is provided with a plurality of rotating grooves (13) which are circumferentially and equidistantly arranged by taking the geometric center as a circle center; a limiting shaft (14) is arranged on the rotating groove (13); the rotating gear (11) rotates in the rotating groove (13) through a limiting shaft (14); the rotating gear (11) is also provided with a plurality of sliding grooves (15) which are circumferentially and equidistantly arranged by taking the geometric center as a circle center; the distance from one end of the sliding groove (15) to the geometric center of the rotating gear (11) is larger than the distance from the other end of the sliding groove to the geometric center of the rotating gear (11); one end of the clamping device is clamped and embedded in the sliding groove (15) through a sliding shaft (16); the other end of the clamping device is provided with a sliding device; the driving gear (12) is meshed with the rotating gear (11), and the reducing driving motor (10) is connected to the driving gear (12).
3. The multi-caliber pipeline weld joint radiation-proof flaw detection device of claim 1, which is characterized in that: clamping shafts (17) are arranged on two sides of the clamping device; a clamping groove (19) is arranged on the clamping shaft (17); the clamping device is matched with the clamping groove (19).
4. The multi-caliber pipeline weld joint radiation-proof flaw detection device of claim 1, which is characterized in that: the sliding device is a roller (18) or a rolling ball (20).
5. The multi-caliber pipeline weld joint radiation-proof flaw detection device of claim 1, which is characterized in that: a screw rod (7) is arranged between the two reducing clamping plates (2); any one end of the screw rod (7) is connected with a screw rod driving motor (6); the screw rod (7) penetrates through the flaw detection device (5) and is connected with the flaw detection device through threads.
6. The multi-caliber pipeline weld joint radiation-proof flaw detection device of claim 1, which is characterized in that: the open hole in the flaw detection device (5) is arranged on a flaw detector (9); the flaw detection device (5) is also provided with a flaw detector driving motor (8); and the flaw detector (9) is connected with the flaw detector driving motor (8) through an adjusting screw rod.
7. The multi-caliber pipeline weld joint radiation-proof flaw detection device of claim 1, which is characterized in that: the house body (3) is integrally of a closed structure, and an observation window and a door are arranged at the side end of the house body.
8. The multi-caliber pipeline weld joint radiation-proof flaw detection device of claim 1, which is characterized in that: the housing of the house body (3) and the variable diameter splint (2) is made of lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911305164.4A CN110987974A (en) | 2019-12-17 | 2019-12-17 | Multi-caliber pipeline weld joint radiation-proof flaw detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911305164.4A CN110987974A (en) | 2019-12-17 | 2019-12-17 | Multi-caliber pipeline weld joint radiation-proof flaw detection device |
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| CN110987974A true CN110987974A (en) | 2020-04-10 |
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| CN201911305164.4A Pending CN110987974A (en) | 2019-12-17 | 2019-12-17 | Multi-caliber pipeline weld joint radiation-proof flaw detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812128A (en) * | 2020-07-18 | 2020-10-23 | 王震 | Pipeline radiation-proof flaw detection device with adaptive pipe diameter adjustment function |
| CN114166940A (en) * | 2021-11-22 | 2022-03-11 | 淄博市特种设备检验研究院 | On-line nondestructive flaw detector for pressure pipeline detection |
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| US20120201347A1 (en) * | 2009-08-28 | 2012-08-09 | Shawcor Ltd. | Method and apparatus for external pipeline weld inspection |
| CN102818810A (en) * | 2012-05-08 | 2012-12-12 | 西安筑波科技有限公司 | X-ray nondestructive testing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111812128A (en) * | 2020-07-18 | 2020-10-23 | 王震 | Pipeline radiation-proof flaw detection device with adaptive pipe diameter adjustment function |
| CN114166940A (en) * | 2021-11-22 | 2022-03-11 | 淄博市特种设备检验研究院 | On-line nondestructive flaw detector for pressure pipeline detection |
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Application publication date: 20200410 |