CN109975333B - Container girth weld ray detection device and method - Google Patents
Container girth weld ray detection device and method Download PDFInfo
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- CN109975333B CN109975333B CN201910240379.6A CN201910240379A CN109975333B CN 109975333 B CN109975333 B CN 109975333B CN 201910240379 A CN201910240379 A CN 201910240379A CN 109975333 B CN109975333 B CN 109975333B
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- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000005291 magnetic effect Effects 0.000 claims abstract description 10
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 230000005251 gamma ray Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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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
- G01N23/04—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 and forming images of the material
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention discloses a container girth weld ray detection device and method, comprising a base and a support rod; the base is characterized by comprising two bottom plates hinged through two hinges, a screwing nut is connected to the hinges through threads, the supporting rod penetrates through the space between the two bottom plates, a lower supporting ring and an upper supporting ring are sleeved on the supporting rod, the two supporting rings are hinged with the two bottom plates through connecting rods at two sides, and fastening screws are arranged on the upper supporting ring; more than one magnetic wheel is arranged on the two bottom plates; the support rod is connected with a mounting seat through a set screw, and an infrared collimator and a ray source are fixedly arranged on the mounting seat; the invention can realize quick and accurate focusing and is suitable for cylinders with different diameters, has the advantages of convenient operation, good use stability, accurate positioning and high success rate of one-time shooting, and can improve detection efficiency and imaging quality.
Description
Technical Field
The invention relates to a ray detection device and a ray detection method, in particular to a ray detection device and a ray detection method for container girth welds.
Background
Along with the progress of technology, the temperature and the pressure of the parameters of special container equipment used in industry are higher and higher, the change of the parameters brings higher requirements to the quality of welding seams of the pressure container, the welding process is used in the manufacturing process of the container, the quality of the welding seams relates to the service life of the container and the safe and reliable operation, and the radiographic inspection is one of important means for guaranteeing the quality of the welding seams. At present, the common radiation detection has the advantages of X-ray detection and gamma-ray detection, and the gamma-ray detection has the advantages of small volume, strong penetrating power, high detection efficiency, capability of adopting central transillumination for the circumferential seam of the container, capability of completing the detection of the whole welding seam by one transillumination, and the like, and is widely used in the circumferential seam radiation detection of the container.
When the container circumferential seam is subjected to one-time transmission irradiation ray detection, in order to uniformly expose the whole seam, the distances from the focal point of the radiation source to each point of the seam should be equal, and the gamma-ray source needs to be fixed at the center of the circumferential seam. In the prior art, a temporary support is generally erected, the distance from a radiation source to the center of a circular seam is measured and adjusted by using a tape measure, and the radiation source is fixed on the support by using tape winding; the support of the device is unstable, the impact force generated by the ray source in the conveying process can impact the fixed support, if the support is impacted and collapsed, the source conveying pipe can be distorted, and the accident of source clamping can be caused seriously; on the other hand, in order to fix the ray source in the center of the circular seam, the distance from the source to the welding seam needs to be measured by a tape measure, the position of the ray source is adjusted, the ray source is wound by an adhesive tape after repeated back and forth for many times, the ray source is fixed on a support, the ray source is difficult to accurately place on the center line of the circular seam, uneven irradiation of the whole welding seam is easily caused, the blackness difference of a negative film is large as a detection result, if the blackness difference exceeds the standard regulation range, the position of the ray source needs to be readjusted for ray re-detection, the radiation re-irradiation rate is high, a large amount of manpower and material resources are consumed, and the production progress is influenced.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art, and provides a container girth weld ray detection device and method, which can realize rapid and accurate focusing and are suitable for cylinders with different diameters, and have the advantages of convenient operation, good use stability, accurate positioning and high success rate of one-time shooting, and can improve detection efficiency and imaging quality.
In order to achieve the purpose, the container girth weld ray detection device comprises a base and a support rod; the base is characterized by comprising two bottom plates hinged through two hinges, a screwing nut is connected to the hinges through threads, the supporting rod penetrates through the space between the two bottom plates, a lower supporting ring and an upper supporting ring are sleeved on the supporting rod, the two supporting rings are hinged with the two bottom plates through connecting rods at two sides, and fastening screws are arranged on the upper supporting ring; more than one magnetic wheel is arranged on the two bottom plates; the support rod is connected with a mounting seat through a set screw, and an infrared collimator and a ray source are fixedly arranged on the mounting seat;
The method for using the container girth weld ray detection device is characterized by comprising the following steps of: 1) The base is arranged in the cylinder to be detected, the angle of the two bottom plates is adjusted through the hinge, so that the radian of the base is matched with that of the cylinder, the screw nut is screwed down, and meanwhile, the supporting rod is contacted with the cylinder; 2) The base is moved, the preset position of the ray source is positioned on the plane where the center of the circular seam is positioned through the infrared collimator, the position of the mounting seat on the supporting rod is adjusted up and down, the ray source is positioned at the radius position of the cylinder, the positioning is accurate, the magnetic wheel is adsorbed on the cylinder of ferromagnetic material, and the whole device is positioned;
The device is convenient to accurately place the ray source at the exact center of the circular seam, the device can be suitable for ray detection of cylinders with different diameters through adjustment of the hinge, the operation is convenient, each fastener ensures that the device has good use stability and high detection efficiency, the defective rate of shooting caused by inaccurate focal length adjustment can be reduced to the greatest extent, and the detection efficiency and imaging quality can be improved;
As a further improvement of the invention, sliding sleeves are fixedly arranged at the lower ends of the bottom plates, the two sliding sleeves are positioned between the magnetic wheels of the two bottom plates, supporting blocks are arranged in the sliding sleeves in a sliding manner, and tightening screws for fixing the supporting blocks are arranged on the sliding sleeves; the supporting blocks are adjusted to be in contact with the cylinder body and locked, so that the supporting strength of the two bottom plates can be increased, and the use stability and the detection effect are improved;
as a further improvement of the invention, the support rod is provided with scales, and the bottom is conical; the scale is helpful for accurately positioning the ray source at the radial position of the cylinder, and the conical bottom is convenient for contacting with the inner wall of the small-diameter cylinder;
As a further improvement of the invention, two hoops are fixedly arranged on the mounting seat, and the infrared collimator and the ray source are fixed in the respective hoops; the assembly and the disassembly are convenient;
In conclusion, the invention can realize quick and accurate focusing and is suitable for cylinders with different diameters, has the advantages of convenient operation, good use stability, accurate positioning and one-time shooting success rate, and can improve the detection efficiency and the imaging quality.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a usage state diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the container girth weld ray detection device of this embodiment includes a base and a supporting rod 3, the base includes two bottom plates 1 hinged by two hinges 2, a screwing nut 4 is screwed on the hinges 2, the supporting rod 3 passes between the two bottom plates 1, the supporting rod 3 is provided with scales, the bottom of the supporting rod is conical, a lower supporting ring 5 and an upper supporting ring 6 are sleeved on the supporting rod 3, the lower supporting ring 5 is hinged with the two bottom plates 1 by two connecting rods 7 on two sides, the upper supporting ring 6 is hinged with the two bottom plates 1 by two connecting rods 8 on two sides, and a fastening screw 9 is arranged on the upper supporting ring 6; two magnetic wheels 10 are arranged on the two bottom plates 1, sliding sleeves 11 are fixedly arranged at the lower ends of the bottom plates 1, the two sliding sleeves 11 are positioned between the magnetic wheels 10 of the two bottom plates 1, supporting blocks 12 are slidably arranged on the sliding sleeves 11, the lower ends of the supporting blocks 12 are conical, and tightening screws 13 for fixing the supporting blocks 12 are arranged on the sliding sleeves 11; the support rod 3 is connected with a mounting seat 15 through a set screw 14, two hoops 16 are fixedly arranged on the mounting seat 15, and an infrared collimator 17 and a ray source 18 are fixed in the hoops 16;
The method for using the container girth weld ray detection device is shown in fig. 3, 1) a base is placed in a detected cylinder 19, the angle of two bottom plates 1 is adjusted through a hinge 2 to enable the radian of the base to be matched with the radian of the cylinder, then a screwing nut 4 is screwed down to fix the angle of the two bottom plates 1, meanwhile, a supporting rod 3 and a supporting block 12 are contacted with the cylinder 19, a fastening screw 9 and a screwing screw 13 are locked, and the supporting rod 3 can be firmly supported by an upper supporting ring 6; 2) The base is moved, the preset position of the ray source 18 is positioned on the plane where the center of the circular seam is positioned through the infrared collimator 17, the position of the mounting seat 15 on the supporting rod 3 is adjusted up and down, the ray source 18 is positioned at the radius position of the cylinder (namely, the ray source 18 is positioned at the center of the circular seam) through the set screw 14, and the magnetic wheel 10 positions the whole device through the functions of adsorption and the two supporting blocks 12;
The device can conveniently and accurately place the ray source 18 at the center of the circular seam, the device can be suitable for ray detection of cylinders with different diameters through adjustment of the hinge 2, the operation is convenient, each fastener ensures that the device has good use stability and high detection efficiency, the defective rate of shooting caused by inaccurate focal length adjustment can be reduced to the greatest extent, and the detection efficiency and imaging quality can be improved; the supporting blocks 12 are adjusted to be in contact with the cylinder 19 and are locked by the tightening screws 13, so that the supporting strength of the two bottom plates 1 can be increased, and the use stability and the detection effect are improved; the scale helps to accurately position the radiation source 18 at the radius of the cylinder, and the conical bottom of the support rod 3 is convenient to contact with the inner wall of the small-diameter cylinder.
Claims (1)
1. A container girth weld ray detection method, its use device includes the base, support bar; the base comprises two bottom plates hinged through two hinges, a screwing nut is connected to the hinges through threads, the supporting rod penetrates through the space between the two bottom plates, scales are arranged on the supporting rod, and the bottom of the supporting rod is conical; the support rod is sleeved with a lower support ring and an upper support ring, the two support rings are hinged with the two bottom plates through connecting rods at two sides, and the upper support ring is provided with fastening screws; the two bottom plates are provided with more than one magnetic wheel, the lower ends of the bottom plates are fixedly provided with sliding sleeves, the two sliding sleeves are positioned between the magnetic wheels of the two bottom plates, supporting blocks are arranged in the sliding sleeves in a sliding manner, and tightening screws for fixing the supporting blocks are arranged on the sliding sleeves; the support rod is connected with a mounting seat through a set screw, an infrared collimator, a ray source and two hoops are fixedly arranged on the mounting seat, and the infrared collimator and the ray source are fixed in the hoops respectively; the method is characterized in that: 1) The base is placed in the cylinder to be detected, the angle of the two bottom plates is adjusted through the hinge to enable the radian of the base to be matched with the radian of the cylinder, then the screwing nut is screwed down to fix the angle of the two bottom plates, meanwhile, the supporting rod and the supporting block are enabled to be in contact with the cylinder, the fastening screw is locked, the screw is screwed down, and the supporting rod can be stabilized by the upper supporting ring; 2) The base is moved, the preset position of the ray source is located on the plane where the center of the circular seam is located through the infrared collimator, the position of the installation seat on the supporting rod is adjusted up and down and is fixed through the set screw, the ray source is located at the radius position of the cylinder, and the magnetic wheel positions the whole device through the functions of adsorption and addition of the two supporting blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910240379.6A CN109975333B (en) | 2019-03-28 | 2019-03-28 | Container girth weld ray detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910240379.6A CN109975333B (en) | 2019-03-28 | 2019-03-28 | Container girth weld ray detection device and method |
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| Publication Number | Publication Date |
|---|---|
| CN109975333A CN109975333A (en) | 2019-07-05 |
| CN109975333B true CN109975333B (en) | 2024-05-24 |
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| CN201910240379.6A Active CN109975333B (en) | 2019-03-28 | 2019-03-28 | Container girth weld ray detection device and method |
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