CN106935286B - A kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tool - Google Patents
A kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tool Download PDFInfo
- Publication number
- CN106935286B CN106935286B CN201511017023.4A CN201511017023A CN106935286B CN 106935286 B CN106935286 B CN 106935286B CN 201511017023 A CN201511017023 A CN 201511017023A CN 106935286 B CN106935286 B CN 106935286B
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- CN
- China
- Prior art keywords
- probe
- swivel base
- motor
- main shaft
- pressure vessel
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/003—Remote inspection of vessels, e.g. pressure vessels
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention belongs to nuclear power station non-destructive testing technologies, specifically disclose a kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tool.Main shaft including pedestal, set on base interior, and the motor being connect with main shaft, further include the probe swivel base for being set to the lower end of pedestal and being connect with main shaft, the probe swivel base is equipped with several along the circumferentially uniformly distributed probe socket of probe swivel bases, and the probe socket is equipped with immersion probe；The pointer is fixed at pedestal lower end, and graduation mark is circumferentially carved in the hole at the probe swivel base center, and pointer is directed toward graduation mark.Motor drives the immersion probe on probe swivel base to rotate by main shaft, and rotate a circle the ultrasonic examination that can be realized to pressure vessel threaded hole, checks efficient, easy to operate；There is kidney slot above probe socket, is immersion probe in hole, finely tunes radius of investigation；Design motor cover plays sealing function by being passed through high pressure gas into cover to equipment such as motors.
Description
Technical field
The invention belongs to nuclear power station non-destructive testing technologies, and in particular to a kind of reactor pressure vessel flange threaded hole is automatic
Ultrasonic examination tool.
Background technology
Nuclear reactor pressure container threaded hole band is located at the top of pressure vessel, is uniformly distributed several bolts above
Hole, pressure vessel during operation head cover buckle its top blending bolt nut fastened.The contact band of bolt hole, Kong Yukong
Between material property quality directly, directly affect the fastening reliability of pressure vessel and head cover, affect pressure appearance
The security performance of device.It is required according to ARSM, needs to carry out regularly non-destructive testing to nuclear reactor pressure container threaded hole band.
When ultrasonic examination is done in pressure container flange face, threaded hole screw thread end plug installed above, due to cannot be guaranteed when installation
The end of thread surface and flange face flush beyond the Great Wall, therefore, the common manual or semi-automatic ultrasonic examination of this part.Using in this way
Method, check the quantitative difference of quantity, efficiency is low, while the labor intensity of inspection personnel is big, and nuclear radiation risk is high.
Invention content
The purpose of the present invention is to provide a kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tools, can
Realize the ultrasonic examination to pressure vessel threaded hole.
Technical scheme is as follows：
A kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tool, including pedestal, set on base interior
Main shaft, and the motor that is connect with main shaft further include set on the lower end of pedestal and the probe swivel base that is connect with main shaft, the spy
Head swivel base is equipped with several along the circumferentially uniformly distributed probe socket of probe swivel base, and the probe socket is equipped with immersion probe；It is described
Pointer be fixed at pedestal lower end, graduation mark is circumferentially carved in the hole at the probe swivel base center, and pointer is directed toward graduation mark.
In a kind of above-mentioned reactor pressure vessel flange threaded hole automatic ultrasonic checking tool, the probe swivel base
On be fixed with circumferential position fixed block, circumferential limit work is equipped in the gap between the circumferential position fixed block and probe swivel base
Motion block, the circumferential limit movable block are slided along the circumferential position fixed block, and the tail portion of the pointer is located at circumferential position
The side of fixed block.
In a kind of above-mentioned reactor pressure vessel flange threaded hole automatic ultrasonic checking tool, it is fixed on pedestal
Motor mount, motor mount top are fixed with motor cover, and the motor is set to inside motor cover, and motor passes through electricity
Machine mounting base is fixedly mounted.
The remarkable result of the present invention is：Motor drives the immersion probe on probe swivel base to rotate by main shaft, rotation one
The ultrasonic examination to pressure vessel threaded hole can be realized week, check efficient, easy to operate；
There is kidney slot above probe socket, is immersion probe in hole, finely tunes radius of investigation；
Design motor cover plays sealing function by being passed through high pressure gas into cover to equipment such as motors；
The circumferential position of pointer instruction probe swivel base.Circumferential limit movable block can be in a certain range of circumferentially limit fixed block
Interior sliding.Pointer is reliably circumferentially limited, the indicating range of pointer can be more than 360 °, can ensure ultrasonic examination requirement
Coverage rate.
Description of the drawings
Fig. 1 is a kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tool schematic diagram；
Fig. 2 is probe swivel base schematic diagram；
In figure：1. motor cover；2. motor；3. motor mount；4. pedestal；5. main shaft；6. nut；7. swivel base of popping one's head in；8.
Immersion probe；9. probe socket；10. pointer；11. circumferential limit fixed block；12. circumferential limit movable block.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment invention is further described in detail.
As shown in Figure 1, entire checking tool is mounted on by pedestal 4 in the check device of pressure vessel circumferential movement
Face.
Motor mount 3 is fixedly mounted on pedestal 4, motor cover 1 is fixedly mounted in 3 top of motor mount, and motor 2 is mounted on
Inside motor cover 1, motor 2 is fixedly mounted by motor mount 3.
Main shaft 5 is mounted on by bearing inside pedestal 4, and in the lower end of pedestal 4 installation probe swivel base 7, the probe turns
7 centers of seat are mounting hole, install main shaft 5 in hole, are fixed main shaft 5 by nut 6.
The upper end of main shaft 5 is connected with the rotor of motor 2.In this way, motor 2 drives probe swivel base 7 to rotate by main shaft 5.
Several (4,6,8) edge probe swivel base 7 circumferentially uniformly distributed probe sockets 9 are installed on the probe swivel base 7,
Probe socket 9 installs immersion probe 8.
It is machined with kidney slot on the probe socket 9, immersion probe 8 is installed in hole, for finely tuning radius of investigation.
Pointer 10 is fixedly mounted on pedestal 4, and graduation mark is circumferentially carved in the hole at 7 center of probe swivel base, when 7 turns of swivel base of probe
When dynamic, pointer 10 can correctly indicate current circumferential angle.
Circumferential position fixed block 11 is fixedly mounted on probe swivel base 7.Circumferential limit movable block 12 is stuck in circumferential limit and fixes
Between block 11 and probe swivel base 7, and it can circumferentially limit fixed block 11 and slide in a certain range.
The tail portion of above-mentioned pointer 10 is located at the side of circumferential limit movable block 12, is moved by circumferential limit movable block 12
Restriction, it is circumferential to limit that movable block 12 is circumferential to pointer 10 to be limited.
After swivel base 7 of popping one's head in rotates one week i.e. 360 °, the circumferential movable block 12 that limits moves so that pointer 10 continues to turn
Dynamic, the indicating range of pointer 10 can be more than 360 °, can ensure the coverage rate of ultrasonic examination requirement.
Claims (3)
1. a kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tool, including pedestal (4), it is set in pedestal (4)
The main shaft (5) in portion, and the motor (2) that is connect with main shaft (5), it is characterised in that：Further include set on pedestal (4) lower end and with
The probe swivel base (7) of main shaft (5) connection, it is circumferentially uniformly distributed along probe swivel base (7) that the probe swivel base (7) is equipped with several
Probe socket (9), the probe socket (9) are equipped with immersion probe (8)；Pointer (10) is fixed at pedestal (4) lower end, described
Graduation mark is circumferentially carved in the hole at probe swivel base (7) center, and pointer (10) is directed toward graduation mark.
2. a kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tool as described in claim 1, feature exist
In：Be fixed with circumferential limit fixed block (11) on the probe swivel base (7), the circumferential limit fixed block (11) and
Circumferential limit movable block (12) is equipped in gap between probe swivel base (7), the circumferential movable block (12) that limits is along described
Circumferential limit fixed block (11) slide, the tail portion of the pointer (10) is located at the side of circumferential limit fixed block (11).
3. a kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tool as claimed in claim 1 or 2, feature
It is：It is fixed with motor mount (3) on pedestal (4), motor cover (1) is fixed with above motor mount (3), it is described
Motor (2) is set in motor cover (1) inside, and motor (2) passes through motor mount (3) and is fixedly mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017023.4A CN106935286B (en) | 2015-12-29 | 2015-12-29 | A kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017023.4A CN106935286B (en) | 2015-12-29 | 2015-12-29 | A kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106935286A CN106935286A (en) | 2017-07-07 |
| CN106935286B true CN106935286B (en) | 2018-11-02 |
Family
ID=59441477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511017023.4A Active CN106935286B (en) | 2015-12-29 | 2015-12-29 | A kind of reactor pressure vessel flange threaded hole automatic ultrasonic checking tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106935286B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548509B (en) * | 2018-04-18 | 2023-07-25 | 洛阳理工学院 | Deep hole quality detection device |
| CN112349438B (en) * | 2020-11-06 | 2024-07-19 | 重庆大学 | Method for on-line monitoring sealing state of O-shaped sealing ring of nuclear reactor pressure vessel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706022A (en) * | 1984-03-29 | 1987-11-10 | Sanyo Special Steel | Rotating-probe defect detecting device |
| CN201273892Y (en) * | 2008-08-27 | 2009-07-15 | 邓明晰 | Working rack for ultrasonic detection transducer |
| CN204086222U (en) * | 2014-10-22 | 2015-01-07 | 燕山大学 | A kind of four Probe Ultrasonic Searching wave inspection multiple degrees of freedom probe holders |
| CN204214811U (en) * | 2014-11-05 | 2015-03-18 | 江阴市恒润重工股份有限公司 | Pointer-type wind power flange end face the cannot-harm-detection device |
| CN104749246A (en) * | 2013-12-31 | 2015-07-01 | 中核武汉核电运行技术股份有限公司 | Ultrasonic automatic checking device of large forging pieces of drum body and sealing head |
| CN205541971U (en) * | 2015-12-29 | 2016-08-31 | 核动力运行研究所 | Automatic supersound inspection tool of reactor pressure vessel flange screw hole |
-
2015
- 2015-12-29 CN CN201511017023.4A patent/CN106935286B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706022A (en) * | 1984-03-29 | 1987-11-10 | Sanyo Special Steel | Rotating-probe defect detecting device |
| CN201273892Y (en) * | 2008-08-27 | 2009-07-15 | 邓明晰 | Working rack for ultrasonic detection transducer |
| CN104749246A (en) * | 2013-12-31 | 2015-07-01 | 中核武汉核电运行技术股份有限公司 | Ultrasonic automatic checking device of large forging pieces of drum body and sealing head |
| CN204086222U (en) * | 2014-10-22 | 2015-01-07 | 燕山大学 | A kind of four Probe Ultrasonic Searching wave inspection multiple degrees of freedom probe holders |
| CN204214811U (en) * | 2014-11-05 | 2015-03-18 | 江阴市恒润重工股份有限公司 | Pointer-type wind power flange end face the cannot-harm-detection device |
| CN205541971U (en) * | 2015-12-29 | 2016-08-31 | 核动力运行研究所 | Automatic supersound inspection tool of reactor pressure vessel flange screw hole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106935286A (en) | 2017-07-07 |
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