CN103871514B - Automatic mounting platform for steam generator connecting tube weld joint detecting device - Google Patents
Automatic mounting platform for steam generator connecting tube weld joint detecting device Download PDFInfo
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- CN103871514B CN103871514B CN201210549931.8A CN201210549931A CN103871514B CN 103871514 B CN103871514 B CN 103871514B CN 201210549931 A CN201210549931 A CN 201210549931A CN 103871514 B CN103871514 B CN 103871514B
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- bar
- turntable
- rod
- platform
- steam generator
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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
Abstract
The invention belongs to the technical field of non-destructive detection of a loop system of a nuclear power plant, and particularly relates to an automatic mounting platform for a steam generator connecting tube weld joint detecting device. A conveying platform is composed of a platform support, a first rod, a second rod, a quick-change joint, a turntable and other parts; the platform support is a 1/3 circular ring fixedly connected to a manhole surface of a steam generator, and the circular ring is provided with a pair of locating plates vertical to a disk surface; the turntable is of a worm wheel and a worm rod meshed structure, and the rotary motion of a mandrel of the turntable is realized through the worm wheel and worm rod mechanism; the first rod is of a cylindrical structure, the ascending and the descending of the conveying platform are realized through the first rod, and the first rod rotates along with the rotation of the mandrel of the turntable; the second rod is of a loop rod structure and connected with the first rod through a rotary joint, and the second rod axially stretches out and draws back on a loop rod through a motor, a sliding lead screw and a guide rail which are arranged in the second rod; and the tail end of the second rod is connected with a rotating shaft through a rotary joint, the other end of the rotating shaft is connected with the quick-change joint, and the weld joint detecting device is connected through the quick-change joint.
Description
Technical field
The invention belongs to one loop of nuclear power station system technical field of nondestructive testing is and in particular to a kind of be used for steam generator
The platform that welding inspection of adapter device is installed automatically.
Background technology
According to the related request of ASME specification, the steam generator water inlet of nuclear power generating sets and water outlet pipe dissimilar metal welding line
As the heavy wall weld seam of major loop, belonging to regulation must examine content, and test range is weld seam inwall 1/3 wall thickness.
Up to now, the ultrasonic examination of the steam generator nozzle weld of nuclear power generating sets, all selects connecing from weld seam outer wall
Nearly mode.Design with nuclear power generating sets improves, and the wall thickness dimension of nozzle weld relatively has a larger increase before.By ultrasonic examination side
The limitation of method itself, for heavy wall weld seam, need to implement to check from nozzle weld inwall, can cover the test range of weld seam.
In the steam generator of part advanced Nuclear Power unit, its low head is the hemisphere of a diameter about 4500mm.
There is a dividing plate inside end socket.As selected from nozzle interior close to by inspection weld seam, its turnover unique channel of hydroecium is the manhole of hydroecium,
People's bore dia only 457.2mm, and the internal diameter of nozzle weld is 657.4mm, and adapter deposits 45 ° of angles with manhole, water chamber structure is special
Levy the accessibility to ultrasonic scan device and bring extreme difficulties.
Therefore, need badly and develop a kind of platform automatically installed for steam generator welding inspection of adapter device, to ensure
Scanning equipment passes through manhole and installs, positions in nozzle interior, is to realize the key that welding line ultrasonic checks automatically.
Content of the invention
The technical problem to be solved in the present invention is：One kind is provided automatically to pacify for steam generator welding inspection of adapter device
The platform of dress, thus solve the technical difficulty installed with positioning from nozzle inner wall scanning for the ultrasonic weld testing apparatus.
In order to realize this purpose, the present invention adopts the technical scheme that：Carrying platform by platform support, the first bar,
The part such as two bars, hydraulic quick coupler, turntable forms；Platform support be in the people's hole face be fixedly connected on steam generator three/
One annulus, equipped with a pair location-plate perpendicular to disc face on annulus；Each location-plate is correspondingly arranged three pin holes respectively
In order to connect turntable and platform support；
Turntable is a turbine and worm engaging structure, by the pin on the two of platform support location-plates by it in platform
Support connects, positioning；Turntable realizes the rotary motion of turntable mandrel by worm-and-wheel gear；
First bar is cylindrical-shaped structure, and length is 1.6-2m, a diameter of 50-70mm, by the motor of its internal setting, cunning
Dynamic leading screw and guide rail are moved in the direction perpendicular to turntable, realize the raising and lowering of carrying platform；First bar and turntable
Mandrel is fixedly connected with slide block by line slideway, rotates with the rotation of turntable mandrel；
Second bar is loop bar structure, and the first bar is connected by cradle head, and the angle between the second bar and the first bar leads to
Cross cradle head to adjust in the range of 0-100 °；Second pole length is can be flexible between 1.4-2m by loop bar, a diameter of
40-60mm, by the motor of its internal setting, lead screw and guide rail in loop bar axial stretching；
Second bar end and rotary shaft are connected by cradle head, and the angle between the second bar and rotary shaft is closed by rotation
Section is adjusted in the range of 0-100 °；The other end of rotary shaft is connected with snap joint, is filled by snap joint attachment weld inspection
Put.
Further, a kind of platform automatically installed for steam generator welding inspection of adapter device as above,
Platform support is fixedly connected in people's hole face of steam generator by 6 bolts.
Further, a kind of platform automatically installed for steam generator welding inspection of adapter device as above,
Equipped with a pair location-plate perpendicular to disc face on annulus, between two pieces of location-plates apart from L=a+0.5mm, wherein, a is turntable
Width.
Further, a kind of platform automatically installed for steam generator welding inspection of adapter device as above,
Each location-plate is correspondingly arranged three pin holes respectively in order to connect turntable and platform support：First pin hole and the second pin hole
Axle center line perpendicular to disk place plane, the line in axle center of the second pin hole and the 3rd pin hole and disk are located flat
Face angle at 45 °.
Further, a kind of platform automatically installed for steam generator welding inspection of adapter device as above,
Cradle head between second bar and the first bar, between the second bar and rotary shaft is to carry out turning by sliding screw and oscillating arm mechanisms
Dynamic.
Technical solution of the present invention is passed through to adjust the angle of carrying platform first bar and platform support, by weld testing apparatus with
And each kinematic axiss place plane is parallel to adapter axis, installation process is made to be reduced to a plane three from a space three bar motion
Bar moves, and significantly reduces automatic installation difficulty.
Brief description
Fig. 1 is the platform structure schematic diagram automatically installed for steam generator welding inspection of adapter device；
Fig. 2 is the structural representation of carrying platform structure；
Fig. 3 is turntable and the first bar structural representation.
In figure：Platform support (1), the first bar (2), turntable (3), the second bar (4), rotary shaft (5), snap joint (6),
One pin hole (7), the second pin hole (8), the 3rd pin hole (9), turntable worm-and-wheel gear (10), turntable mandrel (11),
One bar is internal lead screw (12), the first bar is internal nut (13).
Specific embodiment
Below technical solution of the present invention is described in detail.
The present invention passes through to design carrying platform and the automatic installation method of ultrasonic weld testing apparatus.Advised according to method
Fixed operating procedure and delivery track, by weld testing apparatus at steam generator manhole, through being transported to inside hydroecium in adapter
Wall is simultaneously located on the boss of nozzle inner wall.After the completion of automatic scanning, according to the reverse step of equipment installation, automatically reclaim super
Sound weld testing apparatus.
As shown in figure 1, a kind of platform automatically installed for steam generator welding inspection of adapter device of the present invention, delivery
Platform is made up of the part such as platform support, the first bar, the second bar, hydraulic quick coupler, turntable；Platform support is and steam generator
People's hole face connects 1/3rd annulus of cooperation, equipped with a pair location-plate perpendicular to disc face on annulus, two pieces of location-plates
Between apart from L=a+0.5mm, wherein, a is the diameter of turntable；Each location-plate is correspondingly arranged three pin holes respectively, and wherein
The line in the axle center of one pin hole and the second pin hole is perpendicular to disk place plane, the axle of the second pin hole and the 3rd pin hole
The line of the heart and disk place plane angle at 45 °；Concrete structure is as shown in Figure 2.
As shown in figure 3, turntable is a turbine and worm engaging structure, by the pin on the two of platform support location-plates
It is connected, positions in platform support；First bar is cylindrical-shaped structure, and length is 1.6-2m, and a diameter of 50-70mm, by it
The motor of internal setting, lead screw and guide rail are moved in the direction perpendicular to turntable；The front end of the first bar is connected to and turns
The circumferentially continuous rotation of the first bar on sewing platform base, is driven by the motion of turntable；Specifically, the first bar is cylindrical-shaped structure, long
Spend for 1.8m, a diameter of 70mm.
Second bar is loop bar structure, and the first bar is connected by cradle head, and the angle between the second bar and the first bar leads to
Cross cradle head to adjust in the range of 0-100 °；Second pole length is can be flexible between 1.4-2m by loop bar, a diameter of
40-60mm, by the motor of its internal setting, lead screw and guide rail in loop bar axial stretching；Specifically, the second pole length is straight
Footpath is 50mm.
Second bar end and rotary shaft are connected by cradle head, and the angle between the second bar and rotary shaft is closed by rotation
Section is adjusted in the range of 0-100 °；The other end of rotary shaft is connected with snap joint, is filled by snap joint attachment weld inspection
Put.
Specifically, between the second bar and the first bar, the cradle head between the second bar and rotary shaft is by sliding screw
Rotated with oscillating arm mechanisms.
Carrying platform operation principle is as follows：
Mounting platform support first, then passes through the fixed and positioned carrying platform of bearing pin, platform support and carrying platform it
Between have 0 ° and 45 ° of two states, carry out the installation of carrying platform and weld testing apparatus under 0 ° of state, by manpower along manhole
Axial direction, carrier mechanism is filled in manhole, realizes positioning and the fixation of carrier mechanism；Then carry out weld testing apparatus peace
The preparation of dress.After weld testing apparatus are installed, the first bar moves into manhole, and the second bar is retracted simultaneously, finally makes weld seam
Check device is completely introduced in tank container；Then pass through manpower, rotate the first bar, make to be between the first bar and platform support
45 ° of states, the purpose being processed as is that the motor control making weld testing apparatus below enter adapter becomes simply (i.e. from one
Individual space three bar motion problems are converted into a plane three bar motion problems), so far installment work completes；It is exactly finally by weld seam
Check device is sent in adapter, and (this angle can be by the bulk between manhole and adapter to make integral-rotation certain angle first
Relation calculates in advance), then ratated 90 degrees relative to the first bar by making the second bar, and make the second bar stretch out 500mm, make weldering
Seam check device ratates 90 degrees with respect to the second bar and becomes vertical to arrange, and center and adapter center superposition, so far weld seam
Check device positioning work completes.All of above parameter all can determine in advance, and need not adjust in the operation below again, or only
Need to finely tune, control fairly simple.
It is as follows that application apparatus of the present invention carry out the automatic method installed of weld testing apparatus：
1. platform support is arranged on people's hole end surface, and is bolted.Carrying platform is fixed on platform support,
Carrying platform diameter parallel is made in people's axially bored line by pin, that is, with ground in angle of 45 degrees；
2. adopt snap joint, attachment weld check device termination and carrying platform；
3. weld testing apparatus are integrally transported to inside manhole；
4. by 45 degree of carrying platform integral-rotation, and fixed by pin.Now carrying platform axis vertical ground；
5. drive the cradle head between carrying platform first bar and the second bar, open the second bar to close to horizontality；
6. drive the second bar elongation, make weld testing apparatus near adapter upper end center；
7. drive rotary shaft, weld testing apparatus are rotated about 90 degree along the second bar end, makes weld testing apparatus axis
Parallel to adapter axis；
8. drive the first bar lifting platform motion, make weld testing apparatus vertical downward movement, until check device is leaned on
Proximity pipe boss.
So far, the installation of whole weld testing apparatus, positioning work are fully completed.After scanning terminates, walking according to above
Rapid contrary operation, reclaims weld testing apparatus and withdraws carrying platform.
Claims (5)
1. a kind of platform automatically installed for steam generator welding inspection of adapter device it is characterised in that：Carrying platform by
Platform support, the first bar, the second bar, hydraulic quick coupler, turntable composition；
Platform support is 1/3rd annulus in the people's hole face be fixedly connected on steam generator, hangs down equipped with a pair on annulus
Directly in the location-plate of disc face；Each location-plate is correspondingly arranged three pin holes respectively in order to connect turntable and platform support；
Turntable is a turbine and worm engaging structure, by the pin on the two of platform support location-plates by it in platform support
Connect, position；Turntable realizes the rotary motion of turntable mandrel by worm-and-wheel gear；
First bar is cylindrical-shaped structure, and length is 1.6-2m, a diameter of 50-70mm, by the motor of its internal setting, slip silk
Thick stick and guide rail are moved in the direction perpendicular to turntable, realize the raising and lowering of carrying platform；First bar and turntable mandrel
It is fixedly connected with slide block by line slideway, rotate with the rotation of turntable mandrel；
Second bar is loop bar structure, and the first bar is connected by cradle head, and the angle between the second bar and the first bar passes through to turn
Movable joint is adjusted in the range of 0-100 °；Second pole length is can be flexible between 1.4-2m by loop bar, a diameter of 40-
60mm, by the motor of its internal setting, lead screw and guide rail in loop bar axial stretching；
Second bar end and rotary shaft are connected by cradle head, and the angle between the second bar and rotary shaft is existed by cradle head
Adjust in the range of 0-100 °；The other end of rotary shaft is connected with snap joint, by snap joint attachment weld check device.
2. a kind of platform automatically installed for steam generator welding inspection of adapter device as claimed in claim 1, it is special
Levy and be：Cradle head between second bar and the first bar, between the second bar and rotary shaft passes through sliding screw and oscillating arm mechanisms
Rotated.
3. a kind of platform automatically installed for steam generator welding inspection of adapter device as claimed in claim 1, it is special
Levy and be：Platform support is fixedly connected in people's hole face of steam generator by 6 bolts.
4. a kind of platform automatically installed for steam generator welding inspection of adapter device as claimed in claim 1, it is special
Levy and be：Equipped with a pair location-plate perpendicular to disc face on annulus, between two pieces of location-plates apart from L=a+0.5mm, its
In, a is the width of turntable.
5. a kind of platform automatically installed for steam generator welding inspection of adapter device as claimed in claim 1, it is special
Levy and be：Each location-plate is correspondingly arranged three pin holes respectively in order to connect turntable and platform support：First pin hole and
The line in the axle center of two pin holes is perpendicular to disk place plane, the line in axle center of the second pin hole and the 3rd pin hole and circle
Disk place plane angle at 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210549931.8A CN103871514B (en) | 2012-12-17 | 2012-12-17 | Automatic mounting platform for steam generator connecting tube weld joint detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210549931.8A CN103871514B (en) | 2012-12-17 | 2012-12-17 | Automatic mounting platform for steam generator connecting tube weld joint detecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103871514A CN103871514A (en) | 2014-06-18 |
| CN103871514B true CN103871514B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210549931.8A Active CN103871514B (en) | 2012-12-17 | 2012-12-17 | Automatic mounting platform for steam generator connecting tube weld joint detecting device |
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| CN (1) | CN103871514B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269626B (en) * | 2016-12-30 | 2023-08-15 | 核动力运行研究所 | Ultrasonic inspection system for inner wall of vertical connecting pipe of nuclear reactor steam generator |
| CN109979618A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of enhancing sight check device based on inside container |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2574925B1 (en) * | 1984-12-14 | 1987-03-20 | Framatome Sa | METHOD AND DEVICE FOR OPTICAL CONTROL OF THE SHAPE AND DIMENSIONS OF THE END OF THE TUBES OF A STEAM GENERATOR |
| JPH06148378A (en) * | 1992-11-02 | 1994-05-27 | Mitsubishi Heavy Ind Ltd | Ultrasonic flaw-detecting inspection equipment for fitted bolt |
| CN101364451B (en) * | 2008-09-28 | 2011-09-28 | 苏州热工研究院有限公司 | Closed-circuit television inspection apparatus for top cover of reactor pressure vessel |
| JP5314609B2 (en) * | 2010-01-27 | 2013-10-16 | 三菱重工業株式会社 | Water chamber working device |
| CN102486469B (en) * | 2010-12-02 | 2014-10-01 | 核动力运行研究所 | Device for ultrasonic inspection of pressure vessel connection pipe welding line |
| CN203026174U (en) * | 2012-12-17 | 2013-06-26 | 核动力运行研究所 | Automatic mounting platform for steam generator connecting tube weld joint detecting device |
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| CN103871514A (en) | 2014-06-18 |
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