CN101598684A - Welding line detector of adapter tube and safety end of nuclear reactor pressure vessel and localization method thereof - Google Patents
Welding line detector of adapter tube and safety end of nuclear reactor pressure vessel and localization method thereof Download PDFInfo
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- CN101598684A CN101598684A CNA2009101156302A CN200910115630A CN101598684A CN 101598684 A CN101598684 A CN 101598684A CN A2009101156302 A CNA2009101156302 A CN A2009101156302A CN 200910115630 A CN200910115630 A CN 200910115630A CN 101598684 A CN101598684 A CN 101598684A
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Abstract
The present invention relates to a kind of ray detector that is used for the adapter tube and safety end of nuclear reactor pressure vessel weld seam detection, also relate to a kind of localization method that is used to locate this welding line detector.This welding line detector comprises: main body, air bag component, control lever, the rearward end of main body is connected with the axial location parts of the external peripheral surface that protrudes from body, and the axial location parts are pushed on the side wall surface that is against nuclear reactor pressure container after taking in main body and locate; Also be provided with at least one group of radially telescopic radial location parts along body on the main body, after the main body axial location, this radial location member supporting is carried out radial location to main body on the internal face of taking over; Determined after the position of main body,, be located at commissure to be measured, carried out welding inspection by mobile air bag component.The present invention not only can accurately locate in taking over, and can also pass through one-time positioning, repeats the twice weld seam is detected, and has improved work efficiency.
Description
Technical field
The present invention relates to a kind of ray detector that is used for the adapter tube and safety end of nuclear reactor pressure vessel weld seam detection, also relate to a kind of localization method that is used to locate this welding line detector.
Background technology
Nuclear reactor pressure container is the vitals of nuclear reactor, the quality of nuclear reactor pressure container is the key that guarantees nuclear power generating equipment and the normal safe operation of nuclear power unit, for determining the quality of pressure vessel, in the inspection specification and outline of nuclear power plant and nuclear power unit, the Compulsory Feature that weld seam and other position of reactor pressure vessel proposed Non-Destructive Testing, and specify respectively coming into operation before and the operation certain intervals in the time to reactor pressure vessel enforcement preservice inspection and inservice inspection.The result of preservice inspection and inservice inspection will provide extremely important foundation for the running status of analyzing evaluation pressure vessel.
The enforcement of nuclear reactor pressure container inspection is a complicated process, and it must rely on special-purpose mechanical verification equipment and electrical control drive unit and finish.As shown in Figure 3, to the adapter tube and safety end of nuclear reactor pressure vessel weld seam detection comprise the water inlet of pressure vessel take over 8 or water outlet take over respectively and the junction of safe end 81, trunk line 82 weld seam detection with safe end 81 junctions, wherein trunk line 82 is a metal solder of the same race with the junction of safe end 81, i.e. the second road weld seam 84; And the junction of the water inlet of pressure vessel adapter 8 and safe end 81 is a dissimilar metal welding line, i.e. the first road weld seam 83.Because pore, rosin joint, incomplete fusion or defective such as lack of penetration take place easily for the welding of foreign material, these defectives are the hidden danger that security incident takes place, and therefore need emphasis inspection.
Usually the Non-Destructive Testing to nuclear reactor pressure container mainly contains ultrasonic detecting technology and ray detection technology.According to RCCM standard (Design and Construction Rules for Mechanical Components of PWR Nuclear Islands, " design of pressurized-water reactor nuclear power plant nuclear island plant equipment and construction rule ") and RSEM standard (In-Service Inspection Rulesfor Mechanical Components of PWR Nuclear Islands, " pressurized-water reactor nuclear power plant nuclear island plant equipment inservice inspection rule ") requirement, the adapter tube and safety end of nuclear reactor pressure vessel weld seam also will carry out radiological survey X except carrying out the ultrasonic examination.Adopt the welding line detector of ray detection technology, generally include the checkout equipment main body, the air bag that is used to get rid of detection position liquid that have radiographic source and send source apparatus, be connected and be used on the main body main body is sent into the operating rod that into water is taken over or water outlet is taken over.When checking, welding line detector is in the inside of nuclear reactor pressure container, take over by water inlet adapter or water outlet that operating rod is slowly sent checkout equipment into the nuclear reactor pressure container that is arranged under water, checkout equipment is admitted to after into water adapter or the water outlet adapter, need position it, because taking over, water inlet has flare, and the surface of water inlet nozzle inner wall face for tilting, therefore be not easy it is carried out accurate localization.In addition, air bag is fixedly connected on the main body in the prior art, therefore before the per pass weld seam detects, all needs the butt welded seam checkout equipment to position separately, and work efficiency is lower.
In addition, in testing process, existing ray weld seam detection needs extreme care when entering adapter, because the checkout equipment main body is easy to touch the inwall of nuclear reactor pressure container, thereby cause secondary damage, brings potential safety hazard.
Summary of the invention
The purpose of this invention is to provide a kind of welding line detector of adapter tube and safety end of nuclear reactor pressure vessel, it is location in taking over rapidly and accurately.
For achieving the above object, the technical solution adopted in the present invention is: a kind of welding line detector of adapter tube and safety end of nuclear reactor pressure vessel, and it comprises:
The welding line detector main body is provided with the source apparatus that send that inside is equipped with radiogenic carrying shield and is used for the radiographic source in the described carrying shield is sent into collimating apparatus in the described main body;
Air bag component, described air bag component is used to get rid of the liquid at examine position, and described air bag component is arranged on the described main body movably, and described collimating apparatus is positioned at the center of described air bag component;
Control lever, described control lever is fixedly connected on the rear portion of described body, is used for described body is pushed in the adapter to be measured;
The rearward end of described main body is connected with the axial location parts of the external peripheral surface that protrudes from described body, described axial location parts are against on the side wall surface of described nuclear reactor pressure container after described main body is pushed into adapter, described axial location parts are provided with at least 3 touch sensors that protrude from the front end face of described axial location parts, and the center line of described main body is perpendicular to plane that described at least 3 sensors constituted; Also be provided with at least one group of radially telescopic radial location parts on the described main body along described body, after described main body axial location, described radial location member supporting is carried out radial location to described main body on the side wall surface of nuclear reactor pressure container.
After welding line detector is finished axial and radial location, air bag component just is positioned at the commissure, first road of nuclear reactor pressure container, next carry out the inspection of the first road weld seam, check finish after, air bag component is moved forward come commissure, second road and checks.
Further say, technical scheme of the present invention also comprises: described axial location parts comprise four throw-out levers that are fixedly connected on the described body, described four throw-out levers along the circumferential direction are evenly distributed in described external side of main body, and the leading section of described each throw-out lever is provided with described touch sensor respectively.
Many group radial location parts are set on the described main body vertically, flatly are fixed before and after can keeping to guarantee described welding line detector.
The described radial location parts of respectively organizing comprise at least 3 supporting legs that distribute along the external peripheral surface of described main body respectively.
Or rather, described at least 3 supporting legs along the circumferential direction are evenly distributed on the outside surface of described main body.
Conversion as technique scheme, the described radial location parts of respectively organizing can also comprise a upper support leg, lower support leg and an offside supporting leg respectively, be 180 degree angles between described upper support leg and the lower support leg, a described offside supporting leg is symmetrically distributed in the both sides of described lower support leg.
For avoiding taking in testing process by scratch, the front portion of described radial location parts also is provided with soft guard block, when described radial location parts were in contraction state, the outer face of described soft guard block protruded from the external peripheral surface of described radial location parts; When described radial location parts were in elongation state, the external peripheral surface of described radial location parts protruded from the outer face of described soft guard block.
Another object of the present invention provides a kind of localization method of welding line detector, by this method tack weld checkout equipment quickly and accurately.
For achieving the above object, the technical solution adopted in the present invention is: a kind of localization method of welding line detector of adapter tube and safety end of nuclear reactor pressure vessel, it comprises the steps:
A), coarse positioning: the main body of described welding line detector is slowly sent into adapter to be measured, the front end of described main body is entered in the described adapter, make the axial location parts that are positioned at described body rear relative with the side wall surface of nuclear reactor pressure container;
B), axial location: make have at least on the described axial location parts three the point on same straight line do not contact simultaneously with the side wall surface of nuclear reactor pressure container;
C), radial location: the radial location parts that are positioned at the described main body outside are radially increased, and are against on the internal face of described adapter, thus the location of finishing welding line detector;
D), welding inspection: mobile air bag component is located at commissure to be measured and carries out welding inspection.
The present invention further technical scheme is: described axial location parts are provided with a plurality of touch sensors, the plane at the front end face place of described a plurality of touch sensors is perpendicular to the center line of described body, at described B) in the step, if be checked through the side wall surface that a plurality of touch sensors that are positioned on these axial location parts have all touched nuclear reactor pressure container, illustrate that then welding line detector finishes axial location.
Further, the front side of described radial location parts is provided with soft guard block, the front portion of described radial location parts also is provided with soft guard block, when described radial location parts were in contraction state, the outer face of described soft guard block protruded from the external peripheral surface of described radial location parts; When described radial location parts were in elongation state, the external peripheral surface of described radial location parts protruded from the outer face of described soft guard block.
Further, the front end of described main body is provided with the air bag component that is used to get rid of liquid in the described adapter, at described C) in the step, after described welding line detector radial location was finished, described air bag component just was positioned at commissure, first road; At described D) in the step, at first check the first road weld seam, mobile then air bag component is located at commissure, second road, checks the second road weld seam.
Pass through technique scheme, make welding line detector of the present invention fast in described adapter, to locate exactly, air bag component movably is set simultaneously, makes welding line detector process one-time positioning just can finish the inspection of twice weld seam, improved work efficiency.
Description of drawings
Accompanying drawing 1 is the front view of welding line detector of the present invention;
Accompanying drawing 2 is the left view of welding line detector of the present invention;
Accompanying drawing 3 is the course of action synoptic diagram one (before the axial location) of localization method of the present invention;
Accompanying drawing 5 is the course of action synoptic diagram three (after the radial location, when detecting the first road weld seam) of localization method of the present invention;
Accompanying drawing 6 is the course of action synoptic diagram four of localization method of the present invention when weld seam (detect second road);
Accompanying drawing 7 is the front view of supporting leg of the present invention;
Accompanying drawing 8 in the accompanying drawing 7 along the cut-open view (supporting leg is under the contraction state) of A-A;
Accompanying drawing 9 in the accompanying drawing 7 along the cut-open view (supporting leg is under the elongation state) of A-A;
Wherein: 1, body; 11, primary seal case; 13, level meter; 14, housing;
2, axial location parts; 21, throw-out lever; 22, sensor;
3, radial location parts; 30, upper support leg; 31, lower support leg; 32, side supporting leg; 33, guide; 34, drive cylinder; 35, pars contractilis; 36, contiguous block; 37, sleeve; 38, pin; 39, roller; 40, screw;
4, carrying shield;
5, send source apparatus; 51, motor; 52, screw mandrel; 53, stem pipe;
6, air bag component; 61, collimating apparatus; 62, air-bag support; 63, air bag;
7, control lever; 8, water inlet is taken over; 81, safe end; 82, trunk line; 83, the first road weld seam; 84, the second road weld seam.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in detail, " rear side " in the instructions refers to the left side in the accompanying drawing 1, and " front side " refers to the right side in the accompanying drawing 1.
As shown in Figure 1, a kind of welding line detector of adapter tube and safety end of nuclear reactor pressure vessel, it comprises:
Welding line detector main body 1, include primary seal case 11 in the described main body 1 and be located at primary seal case 11 outsides and be used to be connected the housing 14 of other assembly, be provided with inside in the described primary seal case 11 and the carrying shield 4 in γ source is housed and is used for sending source apparatus 5 what collimating apparatus 61 was sent in the γ sources in the described carrying shield 4;
Send source apparatus 5, it is used for the radioactive source in the carrying shield 4 is sent into collimating apparatus;
The rearward end of described main body 1 is connected with the axial location parts 2 of the external peripheral surface that protrudes from body 1, and described axial location parts 2 are pushed into in described main body and are against on the side wall surface of nuclear reactor pressure container after the water adapter 8.Specifically, described axial location parts 2 can be disk or the boss of a radius greater than main body 1, described in the present embodiment axial location parts 2 comprise four throw-out levers 21 that are fixedly connected on the described body 1, each throw-out lever 21 along the circumferential direction is evenly distributed on the outside of described main body 1, throw-out lever 21 earlier along main body 1 radially extend segment distance bending and along the segment distance that extends axially of main body 1 forward then, and the leading section of each throw-out lever 21 is provided with touch sensor 22 respectively.Instrument is taken over 8 junctions according to the side wall surface and the water inlet of nuclear reactor pressure container in design shape, axial location parts 2 are arranged to when four sensors 22 all touch the side wall surface of nuclear reactor pressure container, the center line of main body 1 is a level, by detecting the signal that sensor 22 is sent in real time, can know whether approximate horizontal of checkout equipment main body 1; Levelness for more accurate adjustment main body 1, also be provided with electrolevel 13 in the primary seal case 11, main body 1 is finished after the axial location, can also rock control lever 7 slightly by front and back, the horizontality of butt welded seam checkout equipment is finely tuned, observation electrolevel 13 has then been finished the axial location of welding line detector up to its reveal competence, guarantees that in the process of adjusting sensor 22 contacts the side wall surface of nuclear reactor pressure container all the time.
Finish after the axial location, also need the butt welded seam checkout equipment to carry out radial location, thus it is further fixing.Be provided with two groups of radially telescopic radial location parts 3 along body 1 on the main body 1 vertically, after described main body 1 axial location, described radial location parts 3 are supported on the internal face of into water adapter 8, and described main body 1 is carried out radial location.Say further, described radial location parts 3 can be radially expanded, thereby push against on the internal face of water inlet adapter 8, as, the parts that radial location parts 3 can adopt two mutual spirals to connect, one of them parts has a plurality of elastic arms, and after the another one parts rotate release, thereby a plurality of elastic arm opens radial location parts 3 are radially expanded; Perhaps these radial location parts 3 adopt airbag structure, by expanding to its inner inflatable.Radial location parts 3 comprise a plurality of supporting legs that distribute along the external peripheral surface of described main body 1 in the present embodiment, described a plurality of supporting leg 30 comprises a upper support leg 30, a lower support leg 31 and an offside supporting leg 32, be 180 degree angles between described upper support leg 30 and the lower support leg 31, a described offside supporting leg 32 is symmetrically distributed in the both sides of described lower support leg 31, and such structure can more benefit stationary body 1 stably.Above-mentioned a plurality of supporting legs also can be selected along the circumferential direction to be evenly distributed on the external peripheral surface of described main body 1.
Described each supporting leg comprises: be fixedly connected on sleeve 37 on the described main body 1, sliding connection at the guide 33 on the described sleeve 37 and be fixedly connected on pars contractilis 35 on the described guide 13, be provided with in the described sleeve 37 and drive cylinder 34, described pars contractilis 35 is fixedly connected on the piston rod of described driving cylinder 34.For the water inlet adapter 8 or the water outlet that make welding line detector of the present invention generally be adapted to all size and size are taken over, the outer end of described pars contractilis 35 removably is connected with the contiguous block 36 that the outer face is a curved surface, because there is the angle of inclination in the internal face of water inlet adapter 8, so fixing for ease of supporting leg, what the outer end of the pars contractilis 35 described in the present embodiment connected is that the outer face is the wedge shape contiguous block on inclined-plane, if the water outlet adapter is detected, the outer end of corresponding pars contractilis 35 then connects the curvature and the water outlet of an outer face and takes over the identical contiguous block 36 of curvature; In addition, contiguous block 36 removably is connected with pars contractilis 35, can make the present invention be applicable to that the inner-walls of duct of different size detects by the contiguous block of selecting proper height or the wedge shape contiguous block of selecting the outer face to have proper angle.
For making welding line detector enter the into further maintenance level in water adapter 8 backs, many group radial location parts 3 are set on the described main body 1 vertically, be more conducive to make main body 1 front portion and rear portion maintenance level like this, the while also makes it be fixed more reliably.
Taking in 8 processes of sending into to water inlet for avoiding welding line detector, supporting leg bumps with the inwall of water inlet adapter 8, the front side portion of described radial location parts 3 also is provided with soft guard block, shown in accompanying drawing 7 to 9, this soft guard member leans outward forward and tiltedly is arranged on each supporting leg, this soft guard member refers to the rubber roll 39 that is rotatably connected on the described sleeve 37 in the present embodiment, this roller 39 is spherical, when supporting leg was in contraction state, the outer face of roller 39 protruded from the external peripheral surface of supporting leg; When supporting leg was in elongation state, the outer face of supporting leg protruded from the outer face of roller 39.
Can scratch adapter for avoiding supporting leg to be against when water is into taken on 8 the internal face, described contiguous block 36 is the rubber material.In addition, contiguous block 36 removably is connected on the pars contractilis 35 by screw 40, can change contiguous block 36 when detecting the adapter at different size and angle of inclination.
The entire work process of welding line detector of the present invention is as follows:
A), coarse positioning: operator station is on operating platform, by control lever the main body 1 of described welding line detector is slowly sent into into water adapter 8, the front end of described main body 1 is entered in the into water adapter 8, make the axial location parts 2 that are positioned at described main body 1 rear end relative with the side wall surface of nuclear reactor pressure container;
B), axial location: when the sensor 22 on 4 throw-out levers 21 all touches the side wall surface of nuclear reactor pressure container, adjust the horizontality of welding line detector by the small size swinging operation bar 7 in front and back, till electrolevel 13 reveal competences, guarantee that in the process of adjusting 4 sensors 22 contact the side wall surface of nuclear reactor pressure container all the time, welding line detector is finished axial location;
C), radial location: stretch out supporting leg and make it be against water into to take on internal face of 8, thus the location of finishing welding line detector;
D), welding inspection: at this moment, according to predetermined design, air bag component 6 should just be positioned at the first road weld seam, 83 places, can begin air bag 63 inflations, after 5-10 minute, carry out radiological survey X under water by sending source apparatus 5 that exposure station (i.e. the first road weld seam, 83 places) is delivered in the γ source; After the first road weld seam, 83 radiological survey Xs finish, the γ source is regained in the carrying shield 4 air bag 63 exhausts; If air bag component 6 just is not positioned at the first road weld seam, 83 places according to predetermined design, also can pass through mobile air-bag support 62, regulate the position of air bag 63, the position of air-bag support 62 can be precisely controlled by motor 51 and leading screw 52.
Then, mobile air bag component 6 is located at the second road weld seam, 84 places, begins air bag 63 inflations after 5-10 minute, are carried out radiological survey X under water by sending source apparatus 5 that the exposure station place is delivered in the γ source;
E), end operation: air bag 63 exhausts, air-bag support 62 is return initial point, shrinks supporting leg, by control lever 7 welding line detector is taken over 8 from water inlet slowly to withdraw, and finishes whole testing process.
Claims (11)
1, a kind of welding line detector of adapter tube and safety end of nuclear reactor pressure vessel is used for the adapter of nuclear reactor pressure container and the attachment weld of safe end and the attachment weld of safe end and trunk line are detected, and it comprises:
The welding line detector main body is provided with the source apparatus that send that inside is equipped with radiogenic carrying shield and is used for the radiographic source in the described carrying shield is sent into collimating apparatus in the described main body;
Air bag component, described air bag component is used to get rid of the liquid at examine position, and described air bag component is arranged on the described main body movably, and described collimating apparatus is positioned at the center of described air bag component;
Control lever, described control lever is fixedly connected on the rear portion of described body, is used for described body is pushed in the adapter to be measured;
It is characterized in that: the rearward end of described main body is connected with the axial location parts of the external peripheral surface that protrudes from described body, described axial location parts are against on the side wall surface of nuclear reactor pressure container after described main body is pushed into adapter, and described axial location parts are provided with at least 3 touch sensors that protrude from the front end face of described axial location parts; Also be provided with at least one group of radially telescopic radial location parts along described body on the described main body, after described main body axial location, described radial location member supporting is carried out radial location to described main body on the internal face of taking over.
2, welding line detector of adapter tube and safety end of nuclear reactor pressure vessel according to claim 1, it is characterized in that: described axial location parts comprise four throw-out levers that are fixedly connected on the described body, described four throw-out levers along the circumferential direction are evenly distributed in described external side of main body, and the leading section of described each throw-out lever is provided with described touch sensor respectively.
3, welding line detector of adapter tube and safety end of nuclear reactor pressure vessel according to claim 1 is characterized in that: many group radial location parts are set on the described main body vertically.
4, welding line detector of adapter tube and safety end of nuclear reactor pressure vessel according to claim 3 is characterized in that: the described radial location parts of respectively organizing comprise at least 3 supporting legs that distribute along the external peripheral surface of described main body respectively.
5, welding line detector of adapter tube and safety end of nuclear reactor pressure vessel according to claim 4 is characterized in that: described at least 3 supporting legs along the circumferential direction are evenly distributed on the outside surface of described main body.
6, welding line detector of adapter tube and safety end of nuclear reactor pressure vessel according to claim 4, it is characterized in that: the described radial location parts of respectively organizing comprise a upper support leg, lower support leg and an offside supporting leg respectively, be 180 degree angles between described upper support leg and the lower support leg, a described offside supporting leg is symmetrically distributed in the both sides of described lower support leg.
7, welding line detector of adapter tube and safety end of nuclear reactor pressure vessel according to claim 1, it is characterized in that: the front portion of described radial location parts also is provided with soft guard block, when described radial location parts were in contraction state, the outer face of described soft guard block protruded from the external peripheral surface of described radial location parts; When described radial location parts were in elongation state, the external peripheral surface of described radial location parts protruded from the outer face of described soft guard block.
8, a kind of localization method of welding line detector of adapter tube and safety end of nuclear reactor pressure vessel, it is characterized in that: it comprises the steps:
A), coarse positioning: the main body of described welding line detector is slowly sent into adapter to be measured, the front end of described main body is entered in the described adapter, make the axial location parts that are positioned at described body rear relative with the side wall surface of nuclear reactor pressure container;
B), axial location: make on the described axial location parts at least three the point on same straight line do not contact with the side wall surface of nuclear reactor pressure container simultaneously;
C), radial location: the radial location parts that are positioned at the described main body outside are radially increased, and are against on the internal face of described adapter, thus the location of finishing welding line detector;
D), welding inspection: mobile air bag component is located at commissure to be measured and carries out welding inspection.
9, localization method according to claim 8, it is characterized in that: described axial location parts are provided with a plurality of touch sensors, at described B) in the step, if be checked through the side wall surface that a plurality of touch sensors that are positioned on these axial location parts have all touched nuclear reactor pressure container, illustrate that then welding line detector finishes axial location.
10, localization method according to claim 8, it is characterized in that: the front portion of described radial location parts is provided with soft guard block, when described radial location parts were in contraction state, the outer face of described soft guard block protruded from the external peripheral surface of described radial location parts; When described radial location parts were in elongation state, the external peripheral surface of described radial location parts protruded from the outer face of described soft guard block.
11, localization method according to claim 8, it is characterized in that: the front end of described main body is provided with and is used to get rid of the air bag component of taking over interior liquid, at described C) in the step, after described welding line detector radial location was finished, described air bag component just was positioned at commissure, first road; At described D) in the step, at first check the first road weld seam, mobile then air bag component is located at commissure, second road, checks the second road weld seam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101156302A CN101598684B (en) | 2009-06-30 | 2009-06-30 | Safety end welding line detector of adapter tube of nuclear reactor pressure vessel and positioning method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101156302A CN101598684B (en) | 2009-06-30 | 2009-06-30 | Safety end welding line detector of adapter tube of nuclear reactor pressure vessel and positioning method thereof |
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| CN101598684B CN101598684B (en) | 2011-05-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101916597A (en) * | 2010-08-19 | 2010-12-15 | 中广核检测技术有限公司 | Automatic detection device and positioning method for weld joint at safe end of nuclear reactor pressure vessel |
| CN102157210A (en) * | 2010-12-09 | 2011-08-17 | 华东理工大学 | Simplified assessment method for defects of welding joint area at piping safety end of pressure vessel of AP1000 nuclear reactor |
| CN102507610A (en) * | 2011-10-17 | 2012-06-20 | 中广核检测技术有限公司 | Automatic ray inspection arm for circumferential weld seam of pipe body |
| CN110828009A (en) * | 2019-11-15 | 2020-02-21 | 中广核检测技术有限公司 | Integrated automatic-positioning radiographic inspection equipment for welding seam of connecting pipe and safe end of pressure container |
| CN112743409A (en) * | 2020-12-15 | 2021-05-04 | 江苏维讯工业技术有限公司 | Flaw detection device based on visual sensor and detection method thereof |
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2009
- 2009-06-30 CN CN2009101156302A patent/CN101598684B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916597A (en) * | 2010-08-19 | 2010-12-15 | 中广核检测技术有限公司 | Automatic detection device and positioning method for weld joint at safe end of nuclear reactor pressure vessel |
| CN101916597B (en) * | 2010-08-19 | 2012-08-22 | 中广核检测技术有限公司 | Automatic detection device and positioning method for weld joint at safe end of nuclear reactor pressure vessel |
| CN102157210A (en) * | 2010-12-09 | 2011-08-17 | 华东理工大学 | Simplified assessment method for defects of welding joint area at piping safety end of pressure vessel of AP1000 nuclear reactor |
| CN102157210B (en) * | 2010-12-09 | 2012-11-21 | 华东理工大学 | Simplified assessment method for defects of welding joint area at piping safety end of pressure vessel of AP1000 nuclear reactor |
| CN102507610A (en) * | 2011-10-17 | 2012-06-20 | 中广核检测技术有限公司 | Automatic ray inspection arm for circumferential weld seam of pipe body |
| CN110828009A (en) * | 2019-11-15 | 2020-02-21 | 中广核检测技术有限公司 | Integrated automatic-positioning radiographic inspection equipment for welding seam of connecting pipe and safe end of pressure container |
| CN112743409A (en) * | 2020-12-15 | 2021-05-04 | 江苏维讯工业技术有限公司 | Flaw detection device based on visual sensor and detection method thereof |
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| CN101598684B (en) | 2011-05-04 |
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