CN104849346B - CRDM component omega welding seam is vortexed automatic checking device - Google Patents
CRDM component omega welding seam is vortexed automatic checking device Download PDFInfo
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- CN104849346B CN104849346B CN201510258928.4A CN201510258928A CN104849346B CN 104849346 B CN104849346 B CN 104849346B CN 201510258928 A CN201510258928 A CN 201510258928A CN 104849346 B CN104849346 B CN 104849346B
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Abstract
The invention discloses a kind of CRDM component omega welding seam to be vortexed automatic checking device, and it includes main supporting structure, rotational structure, eddy current probe frame, defect mark module, video module, locating module, Serve Motor Control portion, electrical control division.Using can cover and be brought into close contact comprehensively the eddy current probe on omega welding seam surface and minisize pick-up head is checked weld seam comprehensively.Probe holder can the compensation of multiple degrees of freedom end, can effectively make all standing abnormity probe fitting face of weld well, and the position error to caused by due to rotational structure and Ω girth joints center misaligned grade compensates.Probe holder and camera frame are arranged on the rotating mechanism by servo electrical machinery system driving, and probe positions are carried out with accurate positioning and quickly vortex and video check, analysis and evaluation to realize by the control to servomotor.
Description
Technical field
The present invention relates to nuclear power field of non destructive testing, more particularly to a kind of CRDM component omega welding seam vortex is certainly
Dynamic check device.
Background technology
CRDM is a kind of step-type hoisting mechanism, for making C＆P systems lift in heap in-core, insert
Enter or be held in place by, be to its action request：Require that the translational speed of rod is slow under accidental conditions；Quick
Require that C＆P systems can be disengaged automatically after breakdown signal is obtained when shutdown or accident conditions, make the latter fast by conducting oneself with dignity
Speed insertion reactor core, to ensure that reactor core is safe for operation.CRDM seal-welds are located at upper, middle and lower respectively, from design structure
On see, this three weld seams belong to unstructuredness pressure-bearing weld seam, only seal, and the load of primary Ioops by threaded connection by being held
Load.
Upper middle part omega welding seam belongs to special stainless steel thin-walled tubular construction, top weld seam exradius 5.7mm, wall thickness 2.3mm,
Middle part weld seam exradius 5.3mm, wall thickness 2.3mm, at a distance of 305mm or so, gap 188mm between adjacent component.Due at this
The particularity of welding line structure, size is small, wall thickness is thin, semicircle, can carry out eddy current inspection according to light-wall pipe；Adjacent C RDM inter-modules
Gap is narrow, and personnel can not reach, and can not carry out conventional visual and eddy current inspection；Omega welding seam is semicircle polymorphic structure, in single side
Comprehensive video check can not be carried out to whole welded seam area upwards, easily cause missing inspection, the flase drop of defect；Weld size at this
Small, inspection area is narrow annular region, and the position error of check device in the radial direction has a strong impact on the accurate of inspection result
Property and reliability.
The content of the invention
It is an object of the invention to provide a kind of CRDM that can be checked comprehensively upper middle part omega welding seam
Component omega welding seam is vortexed automatic checking device.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of CRDM component Ω welderings
Seam vortex automatic checking device, it includes the main supporting structure being substantially in the form of a column；It is rotationally connected with the main supporting structure lower end
Rotational structure；It is installed on eddy current probe frame, defect mark module, video module and the locating module of rotational structure lower end；With
In the Serve Motor Control portion for controlling the rotational structure to rotate；For controlled vortex flow probe holder, defect mark module, video screen module
Block and the electrical control division of locating module action.
Optimization, the eddy current probe frame includes what is be connected with rotational structure and be made up of the first stringer board and the first transverse slat
First L-type connecting plate, fixed the first guide cylinder being arranged on first transverse slat, it is fixed on the first guide cylinder upper end first
Limiting plate, two parallel settings and it is arranged in first limiting plate and the first guide rod on first guide cylinder, solid
The first double-needle type cylinder below first transverse slat, the piston rod and described for being fixed on the first double-needle type cylinder
First mounting seat of the lower end of one guide rod, first mounting seat is horizontally disposed and its both ends has the extended downwardly respectively
One wing plate, the eddy current probe frame also include be arranged on first wing plate the first horizontal litter, be sheathed on described first
First base on horizontal litter, it is sheathed on the described first horizontal litter and is fixed on one of them first wing plate and the first bottom
Counterbalance spring between seat, eddy current probe are installed in the first base.
Optimization, the defect mark module includes with rotational structure being connected and being made up of the second stringer board and the second transverse slat
The second L-type connecting plate, fixed the second guide cylinder being arranged on second transverse slat, be fixed on the second guide cylinder upper end the
Two limiting plates, two parallel settings and be arranged in second limiting plate and the second guide rod on second guide cylinder,
The second double-needle type cylinder for being fixed on below second transverse slat, the piston rod for being fixed on the second double-needle type cylinder and described
Second mounting seat of the lower end of the second guide rod, second mounting seat is horizontally disposed and its both ends has what is extended downwardly respectively
Second wing plate, the second horizontal litter that the defect mark module also includes being arranged on second wing plate, be sheathed on it is described
Second base on second horizontal litter, the grip block being fixed in the second base, it is arranged in and accommodates on block and accommodated
The identification pencil that block clamps.
Optimization, extension board that the video module includes being connected with the rotational structure, mutually incline with the extension board
Tiltedly set and offer the adjustable plate of regulation chute, the miniature video camera that can be adjustably mounted in chute, each regulation
Two miniature video cameras are installed on plate.
Optimization, shown locating module include upper end be connected with rotational structure the plate that is located by connecting, be installed on it is described fixed
Position connecting plate lower end and locating wheel axially perpendicular with the axial direction of the main supporting structure.
The beneficial effects of the present invention are：Using can comprehensively cover and be brought into close contact the eddy current probe and two on omega welding seam surface
Individual minisize pick-up head carries out all standing inspection to omega welding seam.Its probe holder can multiple degrees of freedom end compensation, can effectively make
All standing abnormity probe fitting face of weld, and to caused by due to the misaligned grade of rotational structure and Ω girth joints center well
Position error compensates.Probe holder and camera frame are arranged on the rotating mechanism by servo electrical machinery system driving, by right
The control of servomotor come realize probe positions are carried out accurate positioning and quickly vortex and video check, analyze and comment
Valency.
Brief description of the drawings
Fig. 1 is a kind of nuclear power station CRDM omega welding seam pipe vortex detection device scheme of installation；
Fig. 2 is check device structural representation；
Fig. 3 is probe holder structural representation；
Fig. 4 is defect label frame structural representation；
Fig. 5 is camera frame structural representation；
In figure：1st, electrical control division；2nd, main supporting structure；3rd, Serve Motor Control portion；4th, rotational structure；5th, eddy current probe
Frame；6th, defect mark module；7th, video module；8th, locating module；9th, the first L-type connecting plate；10th, the first limiting plate；12nd, first lead
To cylinder；13rd, the first guide rod；14th, the first double-needle type cylinder；15th, counterbalance spring；16th, the first mounting seat；18th, first base；
19th, eddy current probe；20th, the second L-type connecting plate；21st, the second horizontal litter；22nd, second base；23rd, grip block；24th, identification pencil；
25th, extension board；26th, miniature video camera；27th, the second guide cylinder；28th, the second limiting plate；29th, the second guide rod；30th, it is detected
CRDM components where omega welding seam；31st, the second mounting seat；32nd, for circumferentially positioned adjacent C RDM components；33rd, the second double-needle type
Cylinder；34th, adjustable plate；35th, grip slipper.
Embodiment
Shown embodiment is described in detail below to the present invention below in conjunction with the accompanying drawings：
As shown in Figure 1, 2, CRDM component omega welding seam vortex automatic checking device includes what is be substantially in the form of a column
Main supporting structure 2；It is rotationally connected with the rotational structure 4 of the lower end of main supporting structure 2；It is installed on the whirlpool of the lower end of rotational structure 4
Flow probe holder 5, defect mark module 6, video module 7 and locating module 8；For the servo for controlling the rotational structure 4 to rotate
Motor controling part 3；For the electrical control for controlling probe holder 5, defect mark module 6, video module 7 and locating module 8 to act
Portion 1.
The eddy current probe frame 5 includes the first L for being connected with rotational structure 4 and being made up of the first stringer board and the first transverse slat
Type connecting plate 9, fixed the first guide cylinder 12 being arranged on the transverse slat, to be fixed on the upper end first of the first guide cylinder 12 spacing
The parallel setting of plate 10, two and the first guide rod being arranged on first limiting plate 10 and first guide cylinder 12
13rd, the first double-needle type cylinder 14 for being fixed on below first transverse slat, the piston for being fixed on the first double-needle type cylinder 14
First mounting seat 16 of the lower end of bar and first guide rod 13, first mounting seat 16 is horizontally disposed and its both ends is distinguished
With the first wing plate extended downwardly, the eddy current probe frame 5 also first including being arranged on first wing plate is laterally sliding
Pole, the first base 18 being sheathed on the described first horizontal litter, it is sheathed on the described first horizontal litter and is fixed on wherein
Counterbalance spring 15 between one the first wing plate and first base 18, eddy current probe 19 are installed in the first base 18.
The defect mark module 6 includes for being connected with rotational structure 4 and being made up of the second stringer board and the second transverse slat
Two L-type connecting plates 20, fixed the second guide cylinder 27 being arranged on the transverse slat, it is fixed on the upper end second of the second guide cylinder 27
The parallel setting of limiting plate 28, two and the second guide rod being arranged on the guide cylinder 27 of the second limiting plate 28 and second
29th, the second double-needle type cylinder 33 for being fixed on below second transverse slat, the piston for being fixed on the second double-needle type cylinder 33
Second mounting seat 31 of the lower end of bar and second guide rod 29, second mounting seat 31 is horizontally disposed and its both ends is distinguished
With the second wing plate extended downwardly, the defect mark module 6 also second including being arranged on second wing plate is horizontal
Litter 21, the second base 22 being sheathed on the described second horizontal litter 21, the grip block being fixed in the second base 22
23rd, it is arranged in the identification pencil 24 for accommodating and being clamped on block 23 and by blessing block 23.
Extension board 25 that the video module 7 includes being connected with the rotational structure 4, tilt with the extension board 25
Set and offer regulation chute adjustable plate 34, can be adjustably mounted in chute grip slipper 35, installed in grip slipper 35
On miniature video camera 26, two miniature video cameras 26, the rotating clip in chute are installed on each adjustable plate 34
Hold the angle of the adjustable mini video frequency pick-up head 26 of seat 35, the position of the mobile adjustable mini video frequency pick-up head 26 of grip slipper 35.
Shown locating module 8 include upper end be connected with rotational structure 4 the plate that is located by connecting, be installed on described in be located by connecting
Plate lower end and locating wheel axially perpendicular with the axial direction of the main supporting structure 2.
To sum up：The present invention has advantages below：
1st, the present invention using it is a kind of can cover comprehensively omega welding seam surface be close to close eddy current probe and two minisize pick-up heads
All standing inspection is carried out to omega welding seam.Its probe holder can multiple degrees of freedom end compensation, can effectively make all standing abnormity visit
Head fitting face of weld, and position error is carried out to caused by due to rotational structure and Ω girth joints center misaligned grade well
Compensation.Probe holder and camera frame are arranged on the rotating mechanism by servo electrical machinery system driving, pass through the control to servomotor
System carries out accurate positioning and quickly vortex and video check, analysis and evaluation to probe positions to realize.
2nd, check device is cylindrical in shape structure, and eddy current probe frame 5, defect mark module 6, video module 7 are coated on outside tubular
In shell, long-range lifting can be achieved, reduce human exposure of the control rod mechanism to installation personnel.Check the preceding device from CRDM components
Top hang in, and a wherein tested CRDM is passed through from the hollow hole of device, by positioned at the three of check device bottom
Individual centering locating wheel is to the holding of CRDM cylindrical sections, clamping of the Telescopic cylinder to adjacent C RDM outside device, CRDM
Support of the base step surface to rotary rail wheel, carry out realization device in the radially, circumferentially positioning and installation with axial direction.Locating module
An electrolevel is also included, whole installation process and positioning states real-time digitization can be monitored.
3rd, this check device uses integrated electrical control unit, and centering positioning cylinder, circumferentially positioned cylinder, probe holder can be pushed away
Inlet casing etc. carries out air pressure adjustment, monitoring.The pneumatic control system uses hand-operated pneumatic control cabinet, convenient that dress is realized under electroless state
The installation and dismounting put.
4th, the probe holder of this check device be it is a kind of carry end adaptive ability comprising multiple frees degree, it is achievable micro-
The probe holder system of width regulation.It uses double-needle type cylinder to promote and compress, and prevents single cylinder thrust direction from offseting or visiting
Head end unbalance stress, cause the signal noises caused by reason such as probe can not be bonded face of weld very well or probe does not press tightly
Increase or signal are inaccurate；Error in position fixing process is installed, is likely to result in the rotation of detected weld center and check device
Turn that center is misaligned, the inside and outside skew of probe diametrically can be caused, probe holder is provided with end counterbalance spring, can be in probe position
Micro skew caused by putting compensation position error, reduce the frictional resistance of probe and face of weld in checking process.
5th, this check device using two adjustable mini cameras omega welding seam up and down or inside and outside regarded
Frequency checks, realizes the observation comprehensive to face of weld, prevents mistake of the single camera due to observation position bad the defects of causing
Sentence and fail to judge.And illuminator is housed, it can be checked in the environment of insufficient light.
6th, the present apparatus sets defect mark module, is promoted using needle-like cylinder, weld seam is vortexed and video check mistake
It the defects of finding in journey, can be achieved to be automatically positioned, and make outgoing-line type mark, it is convenient to carry out subsequent evaluation and maintenance.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that spirit is made, should all be included within the scope of the present invention.
Claims (5)
1. a kind of CRDM component omega welding seam is vortexed automatic checking device, it is characterised in that：It includes being in substantially post
The main supporting structure (2) of shape；It is rotationally connected with the rotational structure (4) of the main supporting structure (2) lower end；It is installed on rotational structure
(4) the eddy current probe frame (5) of lower end, defect mark module (6), video module (7) and locating module (8)；It is described for controlling
The Serve Motor Control portion (3) that rotational structure (4) rotates；For controlled vortex flow probe holder (5), defect mark module (6), video
Module (7) and the electrical control division (1) of locating module (8) action.
2. CRDM component omega welding seam according to claim 1 is vortexed automatic checking device, it is characterised in that：
The first L-type that the eddy current probe frame (5) includes being connected with rotational structure (4) and is made up of the first stringer board and the first transverse slat connects
Plate (9), fixed the first guide cylinder (12) being arranged on first transverse slat, it is fixed on the first guide cylinder (12) upper end the
One limiting plate (10), two it is parallel setting and be arranged on first limiting plate (10) and first guide cylinder (12)
First guide rod (13), the first double-needle type cylinder (14) being fixed on below first transverse slat, it is fixed on first crosspointer
The first mounting seat (16) of the lower end of the piston rod of type cylinder (14) and first guide rod (13), first mounting seat
(16) it is horizontally disposed with and its both ends has the first wing plate extended downwardly respectively, the eddy current probe frame (5) also includes being arranged in
The first horizontal litter on first wing plate, the first base (18) being sheathed on the described first horizontal litter, it is sheathed on institute
The counterbalance spring (15) stated on the first horizontal litter and be fixed between one of them first wing plate and first base (18), vortex
Probe (19) is installed in the first base (18).
3. CRDM component omega welding seam according to claim 1 is vortexed automatic checking device, it is characterised in that：
The defect mark module (6) includes the second L-type for being connected with rotational structure (4) and being made up of the second stringer board and the second transverse slat
Connecting plate (20), fixed the second guide cylinder (27) being arranged on second transverse slat, it is fixed on second guide cylinder (27)
Hold the second limiting plate (28), two parallel settings and be arranged in second limiting plate (28) and second guide cylinder (27)
On the second guide rod (29), be fixed on below second transverse slat the second double-needle type cylinder (33), be fixed on described second
The second mounting seat (31) of the lower end of the piston rod of double-needle type cylinder (33) and second guide rod (29), second installation
Seat (31) is horizontally disposed and its both ends has the second wing plate extended downwardly respectively, and the defect mark module (6) also includes wearing
The second horizontal litter (21) on second wing plate, the second base being sheathed on the described second horizontal litter (21)
(22) grip block (23) that, is fixed in the second base (22), it is arranged on grip block (23) and clamped block (23) folder
Tight identification pencil (24).
4. CRDM component omega welding seam according to claim 1 is vortexed automatic checking device, it is characterised in that：
Extension board (25) that the video module (7) includes being connected with the rotational structure (4), tilt with the extension board (25)
Set and offer the adjustable plate (34) of regulation chute, the miniature video camera (26) that can be adjustably mounted in chute, often
Two miniature video cameras (26) are installed on individual adjustable plate (34).
5. CRDM component omega welding seam according to claim 1 is vortexed automatic checking device, it is characterised in that：
Shown locating module (8) include upper end be connected with rotational structure (4) the plate that is located by connecting, be installed on described in be located by connecting under plate
End and locating wheel axially perpendicular with the axial direction of the main supporting structure (2).
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| CN201510258928.4A CN104849346B (en) | 2015-05-20 | 2015-05-20 | CRDM component omega welding seam is vortexed automatic checking device |
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| CN201510258928.4A CN104849346B (en) | 2015-05-20 | 2015-05-20 | CRDM component omega welding seam is vortexed automatic checking device |
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| CN104849346A CN104849346A (en) | 2015-08-19 |
| CN104849346B true CN104849346B (en) | 2017-11-28 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116050A (en) * | 2015-09-15 | 2015-12-02 | 昆山斯格威电子科技有限公司 | Weld flaw detection device for friction stir welding |
| CN106442715A (en) * | 2016-11-21 | 2017-02-22 | 北京金风科创风电设备有限公司 | Surface defect detection device |
| CN108269631B (en) * | 2016-12-30 | 2023-12-26 | 核动力运行研究所 | Ultrasonic inspection device for upper sealing weld joint of control rod driving mechanism |
| CN107991382B (en) * | 2017-10-16 | 2024-04-05 | 中广核检测技术有限公司 | Eddy current inspection device |
| CN108204989A (en) * | 2017-12-27 | 2018-06-26 | 福建省永正工程质量检测有限公司 | A kind of construction steel structure detection device |
| CN108760745A (en) * | 2018-04-12 | 2018-11-06 | 上海建工集团股份有限公司 | Diaphram wall seam leakage inspector and method |
| CN108828061B (en) * | 2018-06-14 | 2022-05-27 | 上海应用技术大学 | Eddy current detection device for surface micro-defects of stainless steel seamless short pipe |
| CN111896613A (en) * | 2020-07-29 | 2020-11-06 | 上海应用技术大学 | Stainless steel flat welded pipe welding seam defect eddy current on-line measuring device |
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Owner name: SUZHOU NUCLEAR POWER RESEARCH INSTITUTE CO., LTD. Free format text: FORMER OWNER: SUZHOU NUCLEAR POWER RESEARCH INSTITUTE CO., LTD. CHINA GENERAL NUCLEAR GROUP CO., LTD. Effective date: 20150805 |
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Effective date of registration: 20150805 Address after: Futian District Shenzhen City, Guangdong province 518000 Shennan Road No. 2002 building building room 1258 Applicant after: CGNPC Inspection Technology Co., Ltd. Applicant after: Suzhou Nuclear Power Research Institute Co., Ltd. Applicant after: China General Nuclear Power Corporation Applicant after: China wide nuclear electricity incorporated company Address before: Futian District Shenzhen City, Guangdong province 518000 Shennan Road No. 2002 building building room 1258 Applicant before: CGNPC Inspection Technology Co., Ltd. Applicant before: Suzhou Nuclear Power Research Institute Co., Ltd. Applicant before: China General Nuclear Power Corporation |
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