CN112881436A - Nondestructive testing device and method for special-shaped small-diameter pipe of nuclear power station - Google Patents
Nondestructive testing device and method for special-shaped small-diameter pipe of nuclear power station Download PDFInfo
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- CN112881436A CN112881436A CN202110022904.4A CN202110022904A CN112881436A CN 112881436 A CN112881436 A CN 112881436A CN 202110022904 A CN202110022904 A CN 202110022904A CN 112881436 A CN112881436 A CN 112881436A
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- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 71
- 239000000523 sample Substances 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 12
- 238000003384 imaging method Methods 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 6
- 206010066054 Dysmorphism Diseases 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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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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Abstract
The invention discloses a nondestructive testing device for a special-shaped small-diameter pipe of a nuclear power station, which comprises: a ray machine movable in Y, Z two directions; a probe movable in both directions Y, Z; and the detection clamp is positioned between the ray machine and the detector, can move along the X direction, and is used for clamping the special-shaped small-diameter pipe to be detected and allowing the special-shaped small-diameter pipe to rotate around the axis of the special-shaped small-diameter pipe. Compared with the prior art, the nondestructive testing device for the special-shaped small-diameter pipe of the nuclear power station has the advantages of simple structure, high position adjusting precision and accurate positioning, is convenient for field operation to complete ray detection work, and improves the working efficiency. In addition, the invention also discloses a nondestructive testing method for the special-shaped small-diameter pipe of the nuclear power station.
Description
Technical Field
The invention belongs to the technical field of nuclear power, and particularly relates to a nondestructive testing device and a nondestructive testing method for a special-shaped small-diameter pipe of a nuclear power station.
Background
In the related technology, the nondestructive testing of the special-shaped small-diameter tube in the nuclear power prefabrication plant mainly adopts ray detection, and the ray detection can detect all defects of a welding seam, so that the method is an effective nondestructive testing means.
At present, the conventional radiographic inspection mainly adopts a film photographic technology based on X rays or gamma rays, the technology is easy to pollute the environment, and because a nuclear power prefabrication plant does not have a special inspection tool, the inspection of each welding seam position needs manual arrangement and manual control inspection, the inspection labor intensity is high, the work efficiency is low, and part of positions are not easy to inspect.
In view of this, it is necessary to provide an efficient nondestructive testing apparatus and a detection method for a special-shaped small-diameter pipe of a nuclear power plant.
Disclosure of Invention
The invention aims to: the defects of the prior art are overcome, and the efficient nondestructive testing device and the efficient nondestructive testing method for the special-shaped small-diameter pipe of the nuclear power station are provided.
In order to achieve the above object, the present invention provides a nondestructive testing apparatus for a special-shaped small diameter tube of a nuclear power station, comprising:
a ray machine movable in Y, Z two directions;
a probe movable in both directions Y, Z; and
and the detection clamp is positioned between the ray machine and the detector, can move along the X direction, and is used for clamping the special-shaped small-diameter pipe to be detected and allowing the special-shaped small-diameter pipe to rotate around the axis of the special-shaped small-diameter pipe.
As an improvement of the nondestructive testing device for the special-shaped small-diameter pipe of the nuclear power station, the testing clamp can clamp the special-shaped small-diameter pipe manually or automatically.
As an improvement of the nondestructive testing device for the special-shaped small-diameter tube of the nuclear power station, the ray machine and the detector are arranged on the rotary table component and can rotate along with the rotary table component to realize angular rotation.
As an improvement of the nondestructive testing device for the special-shaped small-diameter tube of the nuclear power station, the rotary table component realizes angular rotation in an external automatic or manual mode.
As an improvement of the nondestructive testing device for the special-shaped small-diameter pipe of the nuclear power station, two testing clamps are arranged at intervals along the X direction of the nondestructive testing device for the special-shaped small-diameter pipe of the nuclear power station.
As an improvement of the nondestructive testing device for the special-shaped small-diameter tube of the nuclear power station, the detection clamp is provided with a roller set, and Z-direction adjustment is realized through the roller set.
In order to achieve the purpose, the invention also provides a nondestructive testing method for the special-shaped small-diameter pipe of the nuclear power station, which comprises the following steps:
installing the detected special-shaped small-diameter pipe on a detection clamp;
adjusting the X-direction position of the detection clamp and the Y, Z-direction positions of the ray machine and the detector to enable the weld to be detected of the detected special-shaped small-diameter tube to be located in a detection area with proper focal distance between the ray machine and the detector;
enabling the detection clamp to clamp the special-shaped small-diameter pipe to be detected in an automatic or manual mode; and
the digital radiographic imaging detection is started after the detection personnel leave the radiographic room, the detection clamp is controlled to drive the special-shaped small-diameter pipe to be detected to rotate, the digital radiographic imaging detection of different angle positions of the detected weld joint is realized, and the detection full coverage of the detected weld joint is completed.
As an improvement of the nondestructive testing method for the special-shaped small-diameter tube of the nuclear power station, the nondestructive testing method for the special-shaped small-diameter tube further comprises the following steps: the rotary table assembly provided with the ray machine and the detector is controlled to rotate in a manual or automatic mode, the rotary table assembly is rotated by a certain angle according to the detection process, Y, Z position positions of the ray machine and the detector are adjusted, ray detection is carried out after adjustment is finished, and the detection process of the elliptical transillumination is realized.
As an improvement of the nondestructive testing method for the special-shaped small-diameter tube of the nuclear power station, the nondestructive testing method for the special-shaped small-diameter tube further comprises the following steps: after the detected welding line is detected, personnel enter the special-shaped small-diameter pipe to be detected to adjust the small-diameter pipe to be detected, and then the next welding line is subjected to radiographic inspection.
As an improvement of the nondestructive testing method for the special-shaped small-diameter tube of the nuclear power station, the nondestructive testing method for the special-shaped small-diameter tube further comprises the following steps: the detection clamp is provided with a roller set, the angle rotation of the detection clamp is realized through external control, and the all-position ray detection of the position of the detected welding seam is ensured.
Compared with the prior art, the nondestructive testing device and the nondestructive testing method for the special-shaped small-diameter pipe of the nuclear power station have the following advantages:
the structure is simple, the position adjusting precision is high, the positioning is accurate, the on-site operation is convenient for completing the ray detection work, and the work efficiency is improved;
the detection clamp can be used for clamping the detected special-shaped small-diameter pipe and realizing the angular rotation meeting the process requirements;
ray machine, detector and detection anchor clamps all can carry out position adjustable to ray machine, detector are all installed on the revolving stage, realize detecting the dysmorphism path pipe butt weld of isostructure, and realize the oval transillumination formation of image of ray to the butt weld.
Drawings
The following detailed description is made of the nondestructive testing device and the nondestructive testing method for the special-shaped small-diameter tube of the nuclear power plant in combination with the accompanying drawings and the specific implementation modes, wherein:
FIG. 1 is a schematic structural diagram of a nondestructive testing device for a special-shaped small-diameter tube of a nuclear power plant according to the invention.
FIG. 2 is a schematic structural diagram of a detection clamp in the nondestructive detection device for the special-shaped small-diameter tube of the nuclear power station.
In the figure:
10-ray machine; 20-a radiation detector; 30-detecting the clamp; 300-a handle; 302-a first roller set; 304-a second roller set; 40-special-shaped small-diameter pipes; 50-a turntable assembly; a 60-X direction slide rail; a 70-Y-direction sliding rail; 80-Z direction adjusting wheels; and (5) a 90-X directional sliding table.
Detailed Description
In order to make the objects, technical solutions and technical effects of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, the present invention provides an efficient nondestructive testing apparatus for a special-shaped small diameter tube of a nuclear power station, which includes:
a ray machine 10, movable in two directions Y, Z;
a probe 20 movable in both directions Y, Z; and
and the detection clamp 30 is positioned between the ray machine 10 and the detector 20 and can move along the X direction, and is used for clamping the special-shaped small-diameter tube 40 to be detected and allowing the special-shaped small-diameter tube 40 to rotate around the axis of the special-shaped small-diameter tube 40.
Referring to fig. 1, the ray machine 10 and the detector 20 may be respectively mounted on corresponding structures, and both may realize Y, Z two-directional movement, so as to realize adjustment of the height of the detection position and the focal length between the ray machine 10 and the detector 20. The special-shaped small-diameter pipe 40 to be detected is installed on the detection clamp 30, the detection clamp 30 can clamp the special-shaped small-diameter pipe 40 in a manual or automatic mode, and can rotate around the pipe axis of the clamping section, so that the requirement that the special-shaped small-diameter pipe 40 to be detected rotates in the detection process is met, and the all-position detection of a single welding seam is completed. The ray machine 10 is installed on the turntable assembly 50, and when the detection process requires elliptical imaging of a weld to be detected, angular rotation can be performed in an external automatic or manual mode, and the ray machine 10, the detector 20 and the special-shaped small-diameter tube 40 are adjusted, so that the elliptical transillumination is completed by ray detection.
It will be appreciated that the movement in the direction X, Y, Z may be achieved in any suitable manner. For example, in the embodiment shown in fig. 1, the nondestructive testing apparatus for the irregular small diameter pipe of the nuclear power plant is provided with an X-direction slide rail 60 and an X-direction slide table 90 positioned on the X-direction slide rail 60, and the X-direction movement can be realized by the slide of the X-direction slide table 90 on the X-direction slide rail 60. Y-direction movement may also be achieved by a slide-and-slide arrangement (e.g., Y-direction slide 70 in fig. 1), and Z-direction movement may be achieved by operation of Z-direction adjustment wheel 80.
Referring to fig. 1 and 2, in the illustrated embodiment, two detection jigs 30 are provided at intervals along the X direction of the nondestructive testing apparatus for the irregular small-diameter tube of the nuclear power plant, the detection jigs 30 are provided with first and second roller sets 302 and 304, and the irregular small-diameter tube is clamped between the first and second roller sets 302 and 304 and can be adjusted and clamped by a handle 300.
Referring to fig. 1 and 2, the method for nondestructive testing of the special-shaped small-diameter pipe of the nuclear power plant of the invention includes the following steps:
installing the detected special-shaped small-diameter pipe 40 on the detection clamp 30;
adjusting the X-direction position of the detection clamp 30 and the Y, Z-direction positions of the ray machine 10 and the detector 20, so that the weld to be detected of the detected special-shaped small-diameter tube is located in a detection area with a proper focal distance between the ray machine 10 and the detector 20;
the detection clamp 30 is used for clamping the special-shaped small-diameter pipe 40 to be detected in an automatic or manual mode;
after leaving the radiographic room, the detector starts digital radiographic imaging detection, drives the special-shaped small-diameter pipe to be detected 40 to rotate by controlling the detection clamp 30, realizes digital radiographic imaging detection of different angle positions of the detected weld joint, and completes detection full coverage of the detected weld joint; and
after the detected welding seam is detected, the personnel enters the special-shaped small-diameter pipe 40 to be detected to adjust and carry out the ray detection of the next welding seam.
If the elliptical transillumination is required, the rotary table assembly 50 provided with the ray machine 10 and the detector 20 is controlled to rotate in a manual or automatic mode, the rotary table assembly rotates for a certain angle according to the detection process, Y, Z position positions of the ray machine 10 and the detector 20 are adjusted, the ray detection is carried out after the adjustment is finished, and the detection process of the elliptical transillumination is realized.
According to an embodiment of the nondestructive testing method for the special-shaped small-diameter pipe of the nuclear power station, the nondestructive testing method for the special-shaped small-diameter pipe further comprises the following steps: the detection clamp 30 is provided with a roller set, the angle rotation of the detection clamp 30 is realized through external control, and the all-position ray detection of the position of the detected welding seam is ensured. The roller group is adjusted in the Z direction, namely the position height of the special-shaped small-diameter pipe 40 is adjusted.
Compared with the prior art, the nondestructive testing device and the nondestructive testing method for the special-shaped small-diameter pipe of the nuclear power station have the following advantages:
the structure is simple, the position adjusting precision is high, the positioning is accurate, the on-site operation is convenient for completing the ray detection work, and the work efficiency is improved;
the detection clamp can be used for clamping the detected special-shaped small-diameter pipe and realizing the angular rotation meeting the process requirements;
ray machine, detector and detection anchor clamps all can carry out position adjustable to ray machine, detector are all installed on the revolving stage, realize detecting the dysmorphism path pipe butt weld of isostructure, and realize the oval transillumination formation of image of ray to the butt weld.
The control of each movement and imaging link is realized by software, the labor intensity of detection personnel is reduced, and the detection efficiency is greatly improved.
The present invention can be modified and adapted appropriately from the above-described embodiments, according to the principles described above. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. The utility model provides a nuclear power station dysmorphism path pipe nondestructive test device which characterized in that includes:
a ray machine movable in Y, Z two directions;
a probe movable in both directions Y, Z; and
and the detection clamp is positioned between the ray machine and the detector, can move along the X direction, and is used for clamping the special-shaped small-diameter pipe to be detected and allowing the special-shaped small-diameter pipe to rotate around the axis of the special-shaped small-diameter pipe.
2. The nondestructive testing device for the special-shaped small-diameter pipe in the nuclear power plant as recited in claim 1, wherein the testing fixture can clamp the special-shaped small-diameter pipe manually or automatically.
3. The apparatus of claim 1, wherein the ray machine and the detector are mounted on and rotatable with the turntable assembly.
4. The nondestructive testing device for the special-shaped small-diameter pipe of the nuclear power plant as recited in claim 3, wherein the turntable assembly is capable of angular rotation by an external automatic or manual method.
5. The nondestructive testing device for the special-shaped small-diameter pipe of the nuclear power plant as recited in claim 1, wherein two testing clamps are provided at intervals along an X direction of the nondestructive testing device for the special-shaped small-diameter pipe of the nuclear power plant.
6. The nondestructive testing device for the special-shaped small-diameter pipe of the nuclear power plant as recited in claim 1, wherein the testing jig is provided with a roller set, and the roller set is used for realizing Z-direction adjustment and angular rotation.
7. The nondestructive testing method for the special-shaped small-diameter pipe of the nuclear power plant by adopting the nondestructive testing device for the special-shaped small-diameter pipe of the nuclear power plant as defined in any one of claims 1 to 6, which is characterized by comprising the following steps:
installing the detected special-shaped small-diameter pipe on a detection clamp;
adjusting the X-direction position of the detection clamp and the Y, Z-direction positions of the ray machine and the detector to enable the weld to be detected of the detected special-shaped small-diameter tube to be located in a detection area with proper focal distance between the ray machine and the detector;
enabling the detection clamp to clamp the special-shaped small-diameter pipe to be detected in an automatic or manual mode; and
and after leaving the ray room, the detector starts digital ray imaging detection, and drives the special-shaped small-diameter pipe to be detected to rotate by controlling the detection clamp, so that the digital ray imaging detection of different angle positions of the detected weld joint is realized.
8. The nondestructive testing method for the special-shaped small-diameter pipe of the nuclear power plant as recited in claim 7, further comprising: the rotary table assembly provided with the ray machine and the detector is controlled to rotate in a manual or automatic mode, the ray machine and the detector are rotated by a certain angle according to the detection process, the Y, Z position of the ray machine and the detector is adjusted, ray detection is carried out after adjustment is completed, and the detection process of the elliptical transillumination is realized.
9. The nondestructive testing method for the special-shaped small-diameter pipe of the nuclear power plant as recited in claim 7, further comprising: after the detected welding line is detected, personnel enter the special-shaped small-diameter pipe to be detected to adjust the small-diameter pipe to be detected, and then the next welding line is subjected to radiographic inspection.
10. The nondestructive testing method for the special-shaped small-diameter pipe of the nuclear power plant as recited in claim 7, further comprising: the detection clamp is provided with a roller set, the angle rotation of the detection clamp is realized through external control, and the all-position ray detection of the position of the detected welding seam is ensured.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110022904.4A CN112881436A (en) | 2021-01-08 | 2021-01-08 | Nondestructive testing device and method for special-shaped small-diameter pipe of nuclear power station |
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| CN202110022904.4A CN112881436A (en) | 2021-01-08 | 2021-01-08 | Nondestructive testing device and method for special-shaped small-diameter pipe of nuclear power station |
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| CN112881436A true CN112881436A (en) | 2021-06-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588690A (en) * | 2021-07-20 | 2021-11-02 | 中国电子科技集团公司第三十八研究所 | X-ray nondestructive testing device for large-scale component |
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| CN209878628U (en) * | 2019-05-21 | 2019-12-31 | 河南华探检测技术有限公司 | Horizontal cylindrical entity detecting system |
| CN210221864U (en) * | 2019-06-06 | 2020-03-31 | 苏州科耐视智能科技有限公司 | Workpiece rotating nondestructive inspection equipment |
| CN111595871A (en) * | 2020-06-02 | 2020-08-28 | 西安航天发动机有限公司 | Flexible X-ray digital detection system for small-diameter conduit weld joint |
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2021
- 2021-01-08 CN CN202110022904.4A patent/CN112881436A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105765375A (en) * | 2013-10-21 | 2016-07-13 | 依科视朗国际有限公司 | X-ray inspection system and method for rotating a test object by means of such an x-ray inspection system |
| CN209878628U (en) * | 2019-05-21 | 2019-12-31 | 河南华探检测技术有限公司 | Horizontal cylindrical entity detecting system |
| CN210221864U (en) * | 2019-06-06 | 2020-03-31 | 苏州科耐视智能科技有限公司 | Workpiece rotating nondestructive inspection equipment |
| CN111595871A (en) * | 2020-06-02 | 2020-08-28 | 西安航天发动机有限公司 | Flexible X-ray digital detection system for small-diameter conduit weld joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588690A (en) * | 2021-07-20 | 2021-11-02 | 中国电子科技集团公司第三十八研究所 | X-ray nondestructive testing device for large-scale component |
| CN113588690B (en) * | 2021-07-20 | 2023-10-03 | 中国电子科技集团公司第三十八研究所 | X-ray nondestructive testing device for large-sized component |
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