CN104979029B - Ultrasonic inspection device for omega welding seam of control rod drive mechanism in nuclear power station - Google Patents
Ultrasonic inspection device for omega welding seam of control rod drive mechanism in nuclear power station Download PDFInfo
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- CN104979029B CN104979029B CN201510259073.7A CN201510259073A CN104979029B CN 104979029 B CN104979029 B CN 104979029B CN 201510259073 A CN201510259073 A CN 201510259073A CN 104979029 B CN104979029 B CN 104979029B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses an ultrasonic inspection device for an omega welding seam of a control rod drive mechanism in a nuclear power station. The device comprises a drum body, an electrical control part, an action support, an ultrasonic acquisition part and a visual inspection part. The inspection device can load four water-logging ultrasonic probes and two high-resolution CCD cameras at the same time; a bubble-erasing unit of the device can erase bubbles on the welding seam; an in-built water circulation system can realize the function of internal recycling of a water coupling agent in the device; the device has five degrees of freedom; the electrical control part is mainly used to control mechanical movement and pneumatic action and realizes acquisition work of ultrasonic data through sequential operations; and an ultrasonic acquisition and analysis part realizes the function of probes to acquire defect datas of the welding seam under an water-logging environment; and the visual inspection part can visually inspect the welding seam and monitor an operation state of the device.
Description
Technical field
The present invention relates to nuclear power field of non destructive testing, more particularly to a kind of nuclear power station CRDM omega welding seam ultrasound
Check device.
Background technology
The CRDM of CPR heap-type（CRDM）Ω girth joints are a kind of special accurate weld seams of shape, belong to one
Circuit pressure border, is one-level part in RCCM specifications, plays the weight that unit seals primary Ioops cooling water during normal operation
Any leakage is not allow for all in wanting function, power station full phase in longevity.The integrity of the weld seam is directly connected to the safety of nuclear power station
Operation.Omega welding seam is the annular weld seam that radius is little, curvature is big, wall thickness is thin, ring outer radius R=5.7mm, wall thickness T=2.3mm, one
A total of 61 CRDM of individual reactor, have three Ω shape weld seams of upper, middle and lower on a CRDM.
CRDM includes internal hook component, drive shaft assembly, pressure shell component, yoke coil block and position
Instruction component is put, pressure shell component is the involucrum of drive shaft and latch assembly, by circle long tube seal and pressure bearing shell and its upper position
Conveyer sleeve pipe is constituted, and circle long tube seal and pressure bearing shell is formed by connecting by Ω sealing boxing by housing is segmented.Meanwhile, pneumatic shell peace
It is mounted on pressure vessel base, it is connected using trapezoidal thread with base and little Ω sealing rings welded seal.Pneumatic shell is pressure-bearing
Border, it is excessive that the breakage of the pressure-bearing boundary will produce radioactive coolant.Therefore, 3 road Ω sealing ring Weldings of the component
It is very crucial with quality.
Between 1997 to 2004, Electricite De France finds the accident that 4 CRDM omega welding seams are revealed altogether, in addition, according to the U.S.
The data of WSI companies, ends 2 months 2003, and the CRDM of existing 28 units in the U.S. is revealed due to Ω seal-welds and carried out dimension
Repair, also there was the record that omega welding seam is revealed the country from 2007.
According to disclosed data, Mitsubishi heavy industry carried out the coherence check of omega welding seam for 1984, but due to technology
Limit, ultrasonic examination at that time can only check the defect parallel to weld seam, and be contact method ultrasonic examination.The country was in 2007
Also there is the case for implementing that top omega welding seam is checked.So, to avoid omega welding seam from causing nuclear power station major accident, research and development be directed to
Upper, middle and lower omega welding seam carries out gamut ultrasound, vortex, the equipment of visual inspection and is necessary.
The content of the invention
It is an object of the invention to provide a kind of nuclear power station CRDM performing ultrasonic detection on omega welding line device.
To solve above-mentioned technical problem, the present invention is adopted the following technical scheme that：A kind of nuclear power station CRDM Ω
Welding line ultrasonic check device, which includes cylinder, the electrical control division being installed on the cylinder and action support, ultrasound acquisition portion
And visual detection portion, the cylinder is from top to bottom disposed with upper mounted plate, middle fixed plate, bottom plate, the ultrasound
Collection portion includes ultrasonic probe, and it also includes circulating part, and the circulating part is included for storage as the water of couplant
Water tank, the hydroecium that chamber is provided for ultrasonic scan, the water in the water tank is pumped into the water-filling water pump of the hydroecium and by institute
State the water in hydroecium and pump recovered water pump into the water tank, the hydroecium lower surface offers drives for being arranged the control rod
The opening of motivation structure, is provided with sealing mechanism, the sealer on the lower surface of the hydroecium and positioned at the border of the opening
Structure makes the hydroecium lower surface be tightly connected with the CRDM outer peripheral face, hydroecium and CRDM periphery
The space for being capable of water storage is formed between face, the ultrasonic probe is water logging ultrasonic probe.
Optimization, the sealing mechanism is included mutually being fixedly connected with the lower end of the hydroecium and is pressed on air bag in a ring
Plate is mutually fixedly connected with the lower end of the hydroecium and air bag lower platen in a ring, is installed on the air bag top board and air bag
Air bag between lower platen and for inflated airbag gas-charging connection in the air bag, the airbag aeration makes described after heaving
Hydroecium lower surface is tightly connected with the CRDM outer peripheral face, and the hydroecium lower surface has the installation for extending downwardly
Plate, the installing plate upper surface offer cannelure, and the air bag top board is covered on cannelure and O is provided with cannelure
Type circle, the installing plate stage casing are provided with the projection towards the CRDM outer peripheral face, and raised upper and lower end face is opened
Mounting groove is provided with, middle part offers aeration tank, and the upper of the air bag is arranged in the mounting groove of upper and lower end face below respectively, and
Enclose to form inflatable chamber with aeration tank.
Optimization, the action support includes the rotational structure for being installed on the bottom plate lower end；It is installed on rotation knot
The ultrasonic probe frame of structure lower end, defect mark module, camera bracket and locating module；Rotate for controlling the rotational structure
Serve Motor Control portion.
Further, it is the ultrasonic probe frame includes being connected with the rotational structure connecting plate for electric motor, vertical described
The bottom plate and probe oscillating motor that arranges down and one end are perpendicular and be mutually driven with the rotating shaft of the probe oscillating motor
Connection output probe holder, ultrasonic probe are installed on the other end of the output probe holder.
Further, the ultrasonic probe frame also includes being connected to the installation housing of probe oscillating motor lower end, is used for
The radial angle adjustment mechanism and axial angle adjustment mechanism of adjustment ultrasonic probe incident angle, described radial angle adjustment machine
The output probe holder that structure includes with the output shaft of the probe oscillating motor socket-connects mutually is fixedly connected with the output probe holder
The first pointer, the graduated disc fixed seat being fixed on the output shaft of the probe oscillating motor and to be fixed on the graduated disc solid
The first graduated disc in reservation, the output probe holder can with the output shaft rotation also can relatively described output shaft rotation, institute
State axial angle adjustment mechanism include with it is described probe oscillating motor the second output shaft be mutually fixedly connected graduated disc fix bar,
The second graduated disc for being fixed in the graduated disc fix bar, offer arcuate groove and with second graduated disc on curved point
The arc-shaped guide rail of the concyclic heart of graduation mark of cloth, the probe gripper being slidably connected in the arc-shaped guide rail and it is fixed on probe gripper
On the second pointer, the arc-shaped guide rail is fixed on second output shaft, and the ultrasonic probe is fixedly connected on described defeated
Go out on probe holder or be fixedly connected in probe gripper.
Further, the defect mark module is included the labelling connecting plate being connected with the rotational structure, is installed on
Labelling cylinder and the mark being connected with the piston rod of the labelling cylinder by labelling contiguous block on the labelling connecting plate
Pen, marking pen setting parallel with the piston rod of the labelling cylinder.
Further, the camera bracket include the extension board being connected with the rotational structure and with the extension board
Rotate connection and the adjustable plate with gripping block, and the miniature video photographic head in visual detection portion is installed in the gripping block.
Further, what shown locating module included that upper end is connected with rotational structure be located by connecting plate and it is installed on described
Be located by connecting plate lower end and axially perpendicular with the axial direction of control rod locating wheel.
Further, the rotational structure includes circumferential gear and the institute for being rotationally connected with the bottom plate lower surface
State drive gear that circumferential gear is meshed and driven by Serve Motor Control portion and be mutually fixedly connected with the circumferential gear
Gear clamping ring, the ultrasonic probe frame, defect mark module, camera bracket and locating module are installed on the gear connection
On circle.
Optimization, ultrasonic inspection apparatus also include being installed on below the hydroecium to be used to adjust and determine determining for cylinder position
Position base assembly, positioning base component include offering multiple grooves and positioning base in a ring, at least one piece be installed on institute
State in the groove of positioning base medial surface and for adjusting the radial positioning of ultrasonic inspection apparatus and control rod diametrically opposite position
Nylon block, be installed in one of them described groove for drive the radial positioning nylon block movement radial positioning cylinder,
The circumferentially positioned cylinder that is installed on the positioning base lateral surface and it is connected with the piston rod of the circumferentially positioned cylinder
Circumferentially positioned nylon block, is provided with a radial positioning nylon block in each groove, the circumferentially positioned cylinder is two-way cylinder,
Its two piston rod two ends have been respectively fixedly connected with circumferentially positioned nylon block, and it is to treat that the circumferentially positioned nylon block is pushed against respectively
Survey on two adjacent control rods of control rod.
The beneficial effects of the present invention is：This check device can carry four water logging ultrasonic probes and two high-resolution simultaneously
Rate CCD camera, built-in water circulation system can realize the function that water coincidence agent is circulated in device interior, and equipment has 5 freedom
Degree；Electro-pneumatic control section is mainly used in the control of the control made mechanical movement to equipment and pneumatic action, by there is order
Operation realize the collecting work of ultrasound data；Ultrasound acquisition analysis part realizes that probe gathers weld defect under water logging environment
The function of data, visual detection system can be visually inspected to weld seam and equipment running status are monitored.
Description of the drawings
Systematic schematic diagram of the accompanying drawing 1 for the present invention；
Check object of the accompanying drawing 2 for the present invention：On CRDM, the schematic diagram of middle part Ω girth joints；
Accompanying drawing 3 is schematic diagram of the check device on CRDM, respectively corresponding top omega welding seam and middle part omega welding seam
Check；
Accompanying drawing 4,5,6 is check device structure chart；
Accompanying drawing 7 is positioning base assembly assumption diagram；
Accompanying drawing 8 is circumferentially positioned schematic diagram；
Three-dimensional view of the accompanying drawing 9 for radial angle adjustment mechanism；
Three-dimensional view of the accompanying drawing 10 for axial angle adjustment mechanism；
Wherein：1st, cylinder；3rd, servomotor drive division；8th, locating module；1101st, rosette；1102nd, water-filling water pump；
1103rd, upper mounted plate；1104th, suspension ring；1105th, recovered water pump；1106th, two-way horizontal instrument；1201st, water tank；1202nd, circumferential electricity
Machine；1203；Axial connecting plate；1204th, circumferential gear ring；1205th, gear ring clamping ring；1206th, connecting plate for electric motor；1207th, probe pendulum
Galvanic electricity machine；1208th, export probe holder；1209th, ultrasonic probe；1210th, locating wheel；1211st, marking pen drive cylinder；1212nd, remember
Number pen；1213rd, photographic head；1214 first output shafts；1215th, graduated disc fixed seat；1216th, the second output shaft；1217th, graduated disc
Fix bar；13rd, hydroecium；1301st, air bag top board；1302nd, air bag；1303rd, air bag lower platen；14th, positioning base component；
1401st, base outer ring；1402；Radial positioning nylon block；1403rd, radial positioning cylinder；1404th, two-way cylinder；1405th, it is circumferential fixed
Position nylon block；1406th, cushion block；20th, CRDM to be checked（CRDM）, 2-01,2-02 and 2-03 are three adjacent
CRDM；35th, housing is installed；361st, the first pointer；363rd, the first graduated disc；365th, the second graduated disc；366th, arc-shaped guide rail；367、
Probe gripper；368th, proximity switch sensing chip；369th, lower limit proximity switch；360th, upper limit proximity switch；3610th, second refers to
Pin.
Specific embodiment
Shown embodiment is described in detail below to the present invention below in conjunction with the accompanying drawings：
As shown in figure 1, nuclear power station CRDM performing ultrasonic detection on omega welding line device, which includes cylinder 1, is installed on institute
State electrical control division and action support on cylinder 1, ultrasound acquisition portion, visual detection portion, circulating part and weld for wiping
Sew on the bubble erasing part of bubble.The cylinder 1 be from top to bottom disposed with upper mounted plate 1103, middle fixed plate 1107,
Bottom plate 1108, is provided with the rosette 1101 and suspension ring 1104 of electrical control division, middle fixed plate on upper mounted plate 1103
Axial connecting plate 1203 is connected between 1107 and bottom plate 1108.
The ultrasound acquisition portion includes ultrasonic probe 1209, Ultrasound Instrument and ultrasound acquisition analysis computer.
As shown in figure 4, the circulating part is included for storage as the water tank 1201 of the water of couplant, for ultrasonic scan
There is provided chamber hydroecium 13, the water in the water tank 1201 is pumped water-filling water pump 1102 into the hydroecium 13, by the water
Water in room 13 pumps recovered water pump 1105 into the water tank, be connected to 1201/ hydroecium of water tank, 13/ water-filling water pump 1102 and
Water pipe between recovered water pump 1105,13 lower surface of the hydroecium are offered for being arranged the opening of the CRDM,
Sealing mechanism is provided with the lower surface of the hydroecium 13 and positioned at the border of the opening, the sealing mechanism makes the hydroecium
13 lower surfaces are tightly connected with the CRDM outer peripheral face, shape between hydroecium 13 and CRDM outer peripheral face
Into the space for being capable of water storage, the ultrasonic probe 1209 is water logging ultrasonic probe.The ultrasonic probe 1209 is that water logging ultrasound is visited
Head.Water-filling water pump 1102 and recovered water pump 1105 are arranged in middle fixed plate 1107, are also equipped with two-way in middle fixed plate 1107
Level indicator.Water tank 1201 is arranged on bottom plate 1108, and which is curved, can be installed along 1 side wall of cylinder and is not take up more space.
The sealing mechanism includes mutually being fixedly connected with the lower end of the hydroecium 13 and air bag top board 1301 in a ring, and the water
The lower end of room 13 is mutually fixedly connected and air bag lower platen 1303 in a ring, is installed under the air bag top board 1301 and air bag
Air bag 1302 between pressing plate 1303, for inflated airbag gas-charging connection in the air bag 1302, the air bag 1302 fills
Tympanites makes 13 lower surface of the hydroecium be tightly connected with the CRDM outer peripheral face after rising, 13 lower surface of the hydroecium
With the installing plate for extending downwardly, the installing plate upper surface offers cannelure, and the air bag top board 1301 is covered in ring
O-ring is provided with shape groove and in cannelure, the installing plate stage casing is provided with towards the CRDM outer peripheral face
Projection, raised upper and lower end face offers mounting groove, and middle part offers aeration tank, and the upper following card respectively of the air bag sets
In the mounting groove of upper and lower end face, and enclose to form inflatable chamber with aeration tank.
As shown in figure 4, the action support 3 includes the rotational structure 31 for being installed on 1108 lower end of the bottom plate；Peace
Ultrasonic probe frame 32 loaded on 31 lower end of rotational structure, defect mark module 33, camera bracket 34 and locating module 8；For
Control the Serve Motor Control portion 3 of the rotation of the rotational structure 31.
The defect mark module 33 is included the labelling connecting plate being connected with the rotational structure 31, is installed on the mark
Labelling cylinder 1211, the mark being connected with the piston rod of the labelling cylinder 1211 by labelling contiguous block on note connecting plate
Pen 1212, marking pen setting parallel with the piston rod of the labelling cylinder 1211.
The camera bracket 34 includes that the extension board being connected with the rotational structure 31 and the extension board are rotated
Connection and the adjustable plate with gripping block, visual detection portion includes miniature video photographic head 1213, video-frequency monitor, Video processing
Device, wherein miniature video photographic head 1213 are installed in the gripping block, and miniature video photographic head 1213 is taken the photograph for high resolution CCD
As head.
Shown locating module 8 includes the plate that is located by connecting that upper end is connected with rotational structure 31, be installed on the positioning connects
Fishplate bar lower end and axially perpendicular with the axial direction of control rod locating wheel 1210.
The rotational structure 31 includes being rotationally connected with the circumferential gear 1204 of 1108 lower surface of the bottom plate, and institute
State circumferential gear 1204 be meshed and by Serve Motor Control portion 3 in circumferential motor 1202 drive drive gear 1200, and
Gear clamping ring 1205 that the circumferential gear 1204 is mutually fixedly connected, the guiding being installed on the lower surface of bottom plate 1108
Roller, guide roller have multiple and are uniformly distributed in 1204 border of circumferential gear, open up fluted on the wall of guide roller side,
Formed in the groove that 1204 periphery of circumferential gear is arranged on the wall of guide roller side and in all guide rollers and done in ring-shaped guide rail
Circular motion.
The ultrasonic probe frame 32, defect mark module 33, camera bracket 34 and locating module 8 are installed on the gear
On clamping ring 1205.
The ultrasonic probe frame 32 also includes being connected to the installation housing 35 of probe oscillating motor 1207 lower end, for adjusting
The radial angle adjustment mechanism and axial angle adjustment mechanism of 1209 incident angle of ultrasonic probe.Described radial angle adjustment machine
Structure includes the output probe holder 1208 that the first output shaft 1214 with the probe oscillating motor 1207 socket-connects, and the output
The first pointer 361 that probe holder 1208 is mutually fixedly connected, the first output shaft 1214 for being fixed on the probe oscillating motor 1207
On graduated disc fixed seat 1215, the first graduated disc 363 being fixed in the graduated disc fixed seat 1215, it is described output probe
Frame 1208 can be rotated with first output shaft 1214 and also can be rotated relative to first output shaft 1214, the ultrasonic probe
1209 are fixedly connected on the output probe holder 1208, and before detection, radial angle is adjusted as needed, need to only be rotated output and be visited
The headstock 1208, now the first output shaft 1214 do not rotate, graduated disc fixed seat 1215 is not also rotated, export probe holder 1208 turn
Dynamic angle is the angle-determining that the angle that ultrasonic probe 1209 is turned over is turned on the first graduated disc 363 according to the first pointer 361；
The axial angle adjustment mechanism includes the quarter being mutually fixedly connected with the second output shaft 1216 of the probe oscillating motor 1207
Scale fix bar 1217, the second graduated disc 365 being fixed in the graduated disc fix bar 1217, offer arcuate groove and with institute
State the arc-shaped guide rail 366 of the concyclic heart of graduation mark of curved distribution on the second graduated disc 365, be slidably connected to the arc-shaped guide rail
Probe gripper 367, the second pointer 3610 being fixed in probe gripper 367 in 366, the arc-shaped guide rail 366 are fixed on institute
State on the second output shaft 1216, the ultrasonic probe 1209 is fixedly connected in probe gripper 367, before detection, as needed axle
To angular adjustment, probe gripper 367 of need to only sliding, the second pointer 3610 are moved with probe gripper 367, now the second output shaft
1216th, graduated disc fix bar 1217 and the second graduated disc 365 are motionless, and the rotational angle of probe gripper 367 is ultrasonic probe
The angle-determining that 1209 angles for turning over are turned on the second graduated disc 365 according to the second pointer 3610.
As shown in Figure 5,6, the check device also includes being installed on below the hydroecium 13 and is used to adjust, determine cylinder 1
The positioning base component 14 put, positioning base component 14 include offering multiple grooves and positioning base in a ring 1401, extremely
Few one piece is installed in the groove of 1401 medial surface of the positioning base and for adjusting ultrasonic inspection apparatus with control rod radially
The radial positioning nylon block 1402 of relative position, it is installed in one of them described groove for driving the radial positioning nylon
The radial positioning cylinder 1403 of the movement of block 1402, the circumferentially positioned cylinder being installed on 1401 lateral surface of the positioning base
1404th, the circumferentially positioned nylon block 1405 that is connected with the piston rod of the circumferentially positioned cylinder 1404, it is installed on positioning base
Cushion block 1406 below 1401, is provided with a radial positioning nylon block 1402, the circumferentially positioned cylinder in each groove
1404 is two-way cylinder, and its two piston rod two ends have been respectively fixedly connected with circumferentially positioned nylon block 1405, described circumferentially positioned
It is on two adjacent control rods of control rod to be measured that nylon block 1405 is pushed against respectively.
To sum up, advantages of the present invention is as follows：
1st, the water logging ultrasonic examination to weld seam is realized using circulating part, improve the accuracy of inspection.
2nd, check device is cylindrical in shape structure, rotational structure, ultrasonic probe frame, defect mark module, camera bracket, positioning
Module and Serve Motor Control portion are coated in cylinder, are capable of achieving long-range lifting, reduce CRDM to installation personnel
Human exposure.Before checking, the device is hung in from the top of CRDM components, and makes wherein one tested CRDM from the hollow of device
Pass through in hole, axially position is realized by four locating wheels, by the radial positioning nylon block pair positioned at check device bottom
The holding of CRDM cylindrical sections, realizes radial positioning, and the circumferentially positioned cylinder and circumferentially positioned nylon block outside device is to phase
The holding out against of adjacent CRDM realize it is circumferentially positioned, so as to realize device axially, positioning radially and circumferentially and installation.Locating module is also
Comprising an electrolevel, whole installation process and positioning states real-time digitization can be monitored.
3rd, this check device adopts integrated electrical control unit, and radial direction positioning cylinder, circumferentially positioned cylinder, probe can be swung
Motor etc. carries out air pressure adjustment, monitoring.
4th, this check device using two adjustable mini photographic head omega welding seam up and down or inside and outside regarded
Frequency checks, realizes to the omnibearing observation of face of weld, prevent single camera due to the mistake of the not good defect for causing in observation place
Sentence and fail to judge.And illuminator is housed, can be checked in the environment of insufficient light.
5th, this device arranges defect mark module, and labelling cylinder is aciculiform cylinder, carries out ultrasound and video check to weld seam
During the defect that finds, be capable of achieving to be automatically positioned, and make outgoing-line type mark, conveniently carry out subsequent evaluation and maintenance.
6th, the bubble erasing apparatus of equipment can wipe the bubble on weld seam, it is to avoid have bubble to cause shadow to inspection on weld seam
Ring.
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.It is all according to the present invention
Equivalence changes or modification that spirit is made, should all be included within the scope of the present invention.
Claims (10)
1. a kind of nuclear power station CRDM performing ultrasonic detection on omega welding line device, which includes cylinder（1）, be installed on the cylinder
（1）On electrical control division and action support, ultrasound acquisition portion and visual detection portion, the cylinder（1）From top to bottom successively
It is provided with upper mounted plate（1103）, middle fixed plate（1107）, bottom plate（1108）, the ultrasound acquisition portion includes ultrasonic probe
（1209）, it is characterised in that：It also includes circulating part, and the circulating part includes the water for storage as the water of couplant
Case（1201）, the hydroecium of chamber is provided for ultrasonic scan（13）, by the water tank（1201）Interior water is pumped into the hydroecium
（13）Water-filling water pump（1102）With by the hydroecium（13）Interior water pumps the recovered water pump into the water tank（1105）, it is described
Hydroecium（13）Lower surface is offered for being arranged the opening of the CRDM, the hydroecium（13）Lower surface on and
The border of the opening is provided with sealing mechanism, the sealing mechanism makes the hydroecium（13）Lower surface and the control rod
Drive mechanism outer peripheral face is tightly connected, hydroecium（13）The space for being capable of water storage is formed and CRDM outer peripheral face between,
The ultrasonic probe（1209）For water logging ultrasonic probe.
2. nuclear power station CRDM performing ultrasonic detection on omega welding line device according to claim 1, it is characterised in that：Institute
Stating sealing mechanism includes and the hydroecium（13）Lower end be mutually fixedly connected and air bag top board in a ring（1301）, it is and described
Hydroecium（13）Lower end be mutually fixedly connected and air bag lower platen in a ring（1303）, be installed on the air bag top board（1301）
With air bag lower platen（1303）Between air bag（1302）With for the air bag（1302）Interior inflated airbag gas-charging connection,
The air bag（1302）Inflation makes the hydroecium after heaving（13）Lower surface is connected with CRDM periphery face seal
Connect, the hydroecium（13）Lower surface has the installing plate for extending downwardly, and the installing plate upper surface offers cannelure, the gas
Capsule top board（1301）O-ring is covered on cannelure and is provided with cannelure, the installing plate stage casing is provided with towards institute
The projection of CRDM outer peripheral face is stated, raised upper and lower end face offers mounting groove, and middle part offers aeration tank, institute
State the upper of air bag to be respectively arranged in the mounting groove of upper and lower end face in below, and enclose to form inflatable chamber with aeration tank.
3. nuclear power station CRDM performing ultrasonic detection on omega welding line device according to claim 1, it is characterised in that：Institute
Stating action support includes being installed on the bottom plate（1108）The rotational structure of lower end（31）；It is installed on rotational structure（31）Under
The ultrasonic probe frame at end（32）, defect mark module（33）, camera bracket（34）And locating module（8）；It is described for controlling
Rotational structure（31）The Serve Motor Control portion of rotation（3）.
4. nuclear power station CRDM performing ultrasonic detection on omega welding line device according to claim 3, it is characterised in that：Institute
State ultrasonic probe frame（32）Including with the rotational structure（31）The connecting plate for electric motor being connected（1206）, the vertical lower fixation
Plate and the probe oscillating motor for arranging down（1207）With one end and the probe oscillating motor（1207）Rotating shaft it is perpendicular and
Mutually be connected output probe holder（1208）, ultrasonic probe（1209）It is installed on the output probe holder（1208）The other end
Portion.
5. nuclear power station CRDM performing ultrasonic detection on omega welding line device according to claim 4, it is characterised in that：Institute
State ultrasonic probe frame（32）Also include being connected to probe oscillating motor（1207）The installation housing of lower end（35）, for adjusting ultrasound
Probe（1209）The radial angle adjustment mechanism and axial angle adjustment mechanism of incident angle, described radial angle adjustment mechanism
Including with the probe oscillating motor（1207）The first output shaft（1214）The output probe holder for socket-connecting（1208）, it is and described
Output probe holder（1208）The first pointer being mutually fixedly connected（361）, be fixed on the probe oscillating motor（1207）First
Output shaft（1214）On graduated disc fixed seat（1215）Be fixed on the graduated disc fixed seat（1215）On the first scale
Disk（363）, the output probe holder（1208）Can be with first output shaft（1214）Rotating also can relatively described first output
Axle（1214）Rotate, the axial angle adjustment mechanism includes and the probe oscillating motor（1207）The second output shaft
（1216）The graduated disc fix bar being mutually fixedly connected（1217）, be fixed on the graduated disc fix bar（1217）On the second scale
Disk（365）, offer arcuate groove and with second graduated disc（365）The arc of the concyclic heart of graduation mark of upper curved distribution is led
Rail（366）, be slidably connected to the arc-shaped guide rail（366）Interior probe gripper（367）Be fixed on probe gripper（367）On
Second pointer（3610）, the arc-shaped guide rail（366）It is fixed on second output shaft（1216）On, the ultrasonic probe
（1209）It is fixedly connected on the output probe holder（1208）Go up or be fixedly connected on probe gripper（367）It is interior.
6. nuclear power station CRDM performing ultrasonic detection on omega welding line device according to claim 3, it is characterised in that：Institute
State defect mark module（33）Including with the rotational structure（31）The labelling connecting plate that is connected, it is installed on the labelling connection
Labelling cylinder on plate（1211）With by labelling contiguous block and the labelling cylinder（1211）The mark that is connected of piston rod
Pen（1212）, the marking pen and the labelling cylinder（1211）The parallel setting of piston rod.
7. nuclear power station CRDM performing ultrasonic detection on omega welding line device according to claim 3, it is characterised in that：Institute
State camera bracket（34）Including with the rotational structure（31）The extension board that is connected and being rotated with the extension board is connected
And the adjustable plate with gripping block, the miniature video photographic head in visual detection portion（1213）It is installed in the gripping block.
8. nuclear power station CRDM performing ultrasonic detection on omega welding line device according to claim 3, it is characterised in that：Institute
Show locating module（8）Including upper end and rotational structure（31）Being located by connecting for being connected and is installed on described being located by connecting under plate at plate
End and axially perpendicular with the axial direction of control rod locating wheel（1210）.
9. nuclear power station CRDM performing ultrasonic detection on omega welding line device according to claim 3, it is characterised in that：Institute
State rotational structure（31）Including being rotationally connected with the bottom plate（1108）The circumferential gear of lower surface（1204）, and week
To gear（1204）It is meshed and by Serve Motor Control portion（3）The drive gear of driving（1200）And with the circumferential gear
（1204）The gear clamping ring being mutually fixedly connected（1205）, the ultrasonic probe frame（32）, defect mark module（33）, photographic head
Support（34）And locating module（8）It is installed on the gear clamping ring（1205）On.
10. nuclear power station CRDM performing ultrasonic detection on omega welding line device according to claim 1, it is characterised in that：
Ultrasonic inspection apparatus also include being installed on the hydroecium（13）Lower section is used to adjust, determine cylinder（1）The positioning base group of position
Part（14）, positioning base component（14）Including offering multiple grooves and positioning base in a ring（1401）, at least one piece peace
Loaded on the positioning base（1401）In the groove of medial surface and for adjusting ultrasonic inspection apparatus and control rod diametrically position
The radial positioning nylon block put（1402）, be installed in one of them described groove for driving the radial positioning nylon block
（1402）Mobile radial positioning cylinder（1403）, be installed on the positioning base（1401）Circumferentially positioned cylinder on lateral surface
（1404）And with the circumferentially positioned cylinder（1404）The circumferentially positioned nylon block that is connected of piston rod（1405）, each groove
One radial positioning nylon block is inside installed（1402）, the circumferentially positioned cylinder（1404）For two-way cylinder, its two pistons
Bar two ends have been respectively fixedly connected with circumferentially positioned nylon block（1405）, the circumferentially positioned nylon block（1405）Push against respectively and be
On two adjacent control rods of control rod to be measured.
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106429918B (en) * | 2016-09-30 | 2019-04-23 | 中广核检测技术有限公司 | The duplex type hoisting mechanism of control rod drive mechanism welding line ultrasonic check 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 |
| CN108267513B (en) * | 2016-12-30 | 2024-06-07 | 核动力运行研究所 | Couplant sealing and collecting device for ultrasonic inspection of control rod driving mechanism |
| CN109975405A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of mini zone centre bore bolt ultrasonic inspection devices composite structure |
| CN109115874A (en) * | 2018-07-31 | 2019-01-01 | 岭东核电有限公司 | Nuclear power station control rod drive mechanism weld joint ultrasonic scanning equipment |
| CN110231129A (en) * | 2018-11-29 | 2019-09-13 | 南京工业大学 | A kind of pressure vessel inspection of hermetic seal device and detection method |
| CN110253480B (en) * | 2019-06-26 | 2020-12-04 | 中国核动力研究设计院 | Mounting tool for welding seam sealing device of control rod driving mechanism |
| CN110632095A (en) * | 2019-09-27 | 2019-12-31 | 安徽广德威正光电科技有限公司 | PCB automatic check out system based on 5G uses |
| CN113823425A (en) * | 2021-09-24 | 2021-12-21 | 中国核动力研究设计院 | Integrated reactor pressure vessel ultrasonic phased array inspection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031816A (en) * | 1989-07-07 | 1991-07-16 | Westinghouse Electric Corp. | Control rod canopy seal positioning and welding system |
| US5075071A (en) * | 1989-08-04 | 1991-12-24 | Westinghouse Electric Corp. | Cleaning and excavating tool for control rod canopy seals |
| CN2616346Y (en) * | 2003-01-28 | 2004-05-19 | 上海市计祘技术研究所 | Ultrasonic checking job robot system |
| CN101192458B (en) * | 2006-11-30 | 2011-09-21 | 核动力运行研究所 | Pressure vessels top cover actuating device lower omega welding seam ultrasonic inspection method and device |
| CN101762637B (en) * | 2008-12-24 | 2011-12-28 | 中核武汉核电运行技术股份有限公司 | Probe swinging mechanism for performing ultrasonic detection on omega welding line of control bar driving mechanism |
| CN101916599B (en) * | 2010-08-19 | 2012-12-26 | 中广核检测技术有限公司 | Probe frame of supersonic inspection device for weld joint at safe end of nuclear reactor pressure vessel |
| CN104308399B (en) * | 2014-08-27 | 2016-03-02 | 中广核工程有限公司 | Nuclear power station CRDM pneumatic shell Ω seal weld weld defect repairing tool of automobile and method |
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