CN205538834U - Structure is surveyed to reactor control cluster subassembly ultrasonic test - Google Patents
Structure is surveyed to reactor control cluster subassembly ultrasonic test Download PDFInfo
- Publication number
- CN205538834U CN205538834U CN201521017632.5U CN201521017632U CN205538834U CN 205538834 U CN205538834 U CN 205538834U CN 201521017632 U CN201521017632 U CN 201521017632U CN 205538834 U CN205538834 U CN 205538834U
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- China
- Prior art keywords
- probe
- bearing
- mandrel
- ultrasonic examination
- installing hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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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)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model belongs to nuclear power station control cluster subassembly ultrasonic testing technique specifically discloses a structure is surveyed to reactor control cluster subassembly ultrasonic test, including probe, probe dabber and bearing frame, the center processing of probe dabber has axially extending bore, and the probe spindle is equipped with resigns sovereign authority the groove, is equipped with upper bearing mounting hole and lower bearing mounting hole on the bearing frame, is equipped with the upper bearing in the upper bearing mounting hole, is equipped with the lower bearing in the lower bearing mounting hole, bearing Kit is outside the probe dabber from top to bottom, a plurality of reactor control cluster subassembly ultrasonic tests probes during operation of mutually supporting, probe on the probe installation handle with step down the slot combination, can arrange that a plurality of probes detect under the very little condition of control rod interval, be suitable for convenient operation, realize many places and detect simultaneously, do not interfere mutually. At probe spindle installation gear, drive gear rotates, realizes the meshing of the gear on a plurality of probes for the linkage of a plurality of detection structures.
Description
Technical field
This utility model belongs to nuclear power station control rod tread assembly ultrasonic detecting technology, is specifically related to a kind of ultrasonic examination detecting structure.
Background technology
Nuclear power station control rod tread assembly (Rod Cluster Control Assembly, hereinafter referred to as RCCA) bears important function in whole nuclear plant safety runs, be used for regulating reactor capability and urgent time shutdown.Increasing along with nuclear power station runs the time, metal material properties reduces, and RCCA there will be the defects such as swelling, abrasion and crackle.For ensureing the safe operation of nuclear power station, RCCA need to be implemented inservice inspection, and according to repeatedly checking that the data obtained is analyzed, compares, the evaluation and test rate of wear and trend, thus extend the RCCA life-span as far as possible and ensure the safety and economic operation of nuclear power station.
A branch of RCCA is generally made up of a star-like frame, the many mono-rods of RCCA, and between single rod, spacing is less, and conventional ultrasound probes is difficult to arrange, it is impossible to single rod is implemented ultrasound detection.
RCCA inservice inspection mainly uses ultrasonic examination technology and eddy-current test technology, and wherein eddy-current test is typically only capable to detect crackle, to other defects detection DeGrain；Ultrasonic examination then can detect swelling, abrasion and control rod can wall thickness and measure, and is the major technique of RCCA inspection.
Due to the special construction of RCCA, its single interrod spacing is relatively near, and probe is installed limited, and multiple detecting structures can not realize detecting simultaneously.It is thus desirable to design novel detecting structure, it is achieved multiple detection agencies link detection simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of reactor control rod tread assembly ultrasonic examination detecting structure, and it detects while being capable of reactor control rod tread assembly list rod, realizes the stable transmission of probe signal simultaneously.
The technical solution of the utility model is as follows:
A kind of reactor control rod tread assembly ultrasonic examination detecting structure, including probe and probe mandrel, described probe mandrel is provided with bulge-structure, the central axial installing hole that is machined with of bulge-structure, is provided with probe in hole；Described probe mandrel center is machined with axially extending bore, and described through hole communicates with installing hole；Described probe mandrel is provided with slot to make way, and when multiple ultrasonic examination detecting structures work simultaneously, the probe installing handle position of described slot to make way and adjacent ultrasonic examination detecting structure coordinates, probe installing handle with in the slot to make way of adjacent ultrasonic examination detecting structure；
Also including the bearing block being located at outside probe mandrel, it is installed by bearing；
Described bearing block is provided with upper bearing (metal) installing hole and lower bearing installing hole, is provided with upper bearing (metal), is provided with lower bearing in lower bearing installing hole in upper bearing (metal) installing hole；Metal (upper is sleeved on outside probe mandrel；
Drawing privates from the heart yearn of probe, described upper bearing (metal) inner ring is to privates radial compaction；The outer, bottom of upper bearing (metal) installing hole is provided with privates；
Drawing the first wire from the shielding line of probe, described lower bearing inner ring is to the first wire radial compaction；The stage outer of lower bearing installing hole is provided with the second wire；
Described privates and the second wire are drawn as signal lead-out wire from probe mandrel perforation.
In above-mentioned a kind of reactor control rod tread assembly ultrasonic examination detecting structure: described probe core outer shaft sleeve cogged, it is positioned at below the probe installing handle of projection.
In above-mentioned a kind of reactor control rod tread assembly ultrasonic examination detecting structure: be provided with trip bolt on described probe installing handle.
In above-mentioned a kind of reactor control rod tread assembly ultrasonic examination detecting structure: the lower section of described lower bearing is provided with snap ring, it is installed on outside probe mandrel, from below lower bearing is positioned.
In above-mentioned a kind of reactor control rod tread assembly ultrasonic examination detecting structure: the upper end suit of described probe mandrel installs bearing, by snap ring by its axial restraint.
The beneficial effects of the utility model are:
Probe mandrel processes slot to make way, bulge-structure is processed on sidewall, and at convex center processing mounting holes, bossing is as probe installing handle so that probe placement is in installing hole, multiple reactor control rod tread assembly ultrasonic examinations are popped one's head in when cooperating work, probe and slot to make way on probe installing handle coordinate, and can arrange that multiple probe detects, be suitable for easy to operate in the case of control rod spacing is the least, realize many places to detect simultaneously, do not interfere with each other.
Further, in order to realize multiple probe linkage, the most multiple probes rotation work simultaneously, probe mandrel installs gear, drives pinion rotation, it is achieved the engagement of the gear on multiple probes so that multiple detecting structures link.
By designing upper and lower two groups of sliding brush configurations, it is capable of the transmission that the signal of heart yearn and the shielding line popped one's head in is reliable and stable, it is suitable for bearing and signal conductor is installed, by frame for movement, the signal of probe is drawn, substantially prolongs the shelf life of sliding brush, bearing is capable of precise rotation simultaneously, it is achieved the reliable and stable transmission of signal.
Further design flexibility snap ring, axial restraint bearing, and then ensure that the axial compression of sliding brush, further ensure the reliability that sliding brush is installed；Additionally use snap ring, it is possible to realize the fast assembling-disassembling of sliding brush；
Accompanying drawing explanation
Fig. 1 is reactor control rod tread assembly ultrasonic examination detecting structure schematic diagram；
In figure: 1. probe mandrel；2. snap ring；3. bearing is installed；301. upper bearing (metal)；302. lower bearing；4 trip bolts；5 probes；6. gear；7. bearing block；701. upper bearing (metal) installing holes；702. lower bearing installing holes；8. detected object；9. the first wire；10. the second wire；11. privates；12. privates；13. slots to make way；14. probe installing handles.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is described in further detail by specific embodiment.
As it is shown in figure 1, probe mandrel 1 central axial processing through hole, the Milling Machining symmetrical in the stage casing of probe mandrel 1 goes out slot to make way 13.
Being machined with bulge-structure on the outer wall of this section, protruding center is machined with installing hole, installs probe 5 in hole.Bulge-structure is as probe installing handle 14.Detected object 8 is placed in the through hole of probe mandrel 1.In order to be fixed by probe 5, in the direction that bulge-structure is axially vertical with probe 5 installation, trip bolt 4 is installed.
The protrusion direction of probe installing handle 14 is vertical with the machine direction of slot to make way 13.
Probe 5 is provided with heart yearn and shielding line.
It is outside that bearing block 7 is arranged on probe mandrel 1 by bearing.
At the probe outer set gear of mandrel 16, it is positioned at below the probe installing handle 14 of projection, and when multiple detecting structures work together, the gear 6 of adjacent detector structure engages each other, it is achieved multiple detecting structures link.
Process two bearing mounting holes 701,702 up and down on bearing block 7, in upper bearing (metal) installing hole 701, install bearing, lower bearing is installed in lower bearing installing hole 702；Metal (upper 301,302 is sleeved on outside probe mandrel 1.
Installing lower two groups of sliding brush configurations on probe mandrel 1, often group includes two wires and an above-mentioned bearing (upper bearing (metal) or lower bearing).
The privates 12 of the sliding brush configuration of top are drawn from the heart yearn of probe 5, are arranged on the inner ring of upper bearing (metal) 301, by upper bearing (metal) 301 inner ring to its radial compaction so that it is be arranged on probe mandrel 1 outer wall in the groove processed；Privates 11 is arranged on the outer, bottom of the upper bearing (metal) installing hole 701 of bearing block 7, makes the outer ring axial compression wire of upper bearing (metal) 301, and privates 11 draws the signal lead-out wire as whole probe 5 from bearing block 7 perforation；
First wire 9 of the sliding brush configuration of lower section, from the shielding line extraction of probe 5, is arranged on lower bearing 302 inner ring, leads tight by the inner ring of lower bearing 302 to its radial direction pressure so that it is be arranged on probe mandrel 1 outer wall in the groove processed；Second wire 10 is arranged on the outer, bottom of the lower bearing installing hole 702 of bearing block 7, makes the outer ring axial compression wire of lower bearing 302, and the second wire 10 draws the signal lead-out wire as whole probe 5 from bearing block 7 perforation；
The signal that above-mentioned probe 5 is drawn delivers to Ultrasound Instrument.
Snap ring 2 is installed in the lower section of lower bearing 302, is installed on outside probe mandrel 1, positions lower bearing 302 from below.
Bearing 3 installed by the upper end suit of probe mandrel 1, then by snap ring 2 by its axial restraint, it is simple to the connection between this device and other equipment.
Above-mentioned probe 5 is normal probe, and detected object 8 can be the mono-rod of RCCA, and normal probe is relatively big because of focal length, increases probe core axle construction size, and then when causing RCCA to check, multiple probes interfere.For solving this problem, probe mandrel having slot to make way 13, installing handle 14 of popping one's head in during rotation can proceed to slot to make way 13.
Due to the installation of gear 6, during whole bundle RCCA mono-rod ultrasonic examination, realize the synchronization of multiple RCCA ultrasonic examination probe, synchronized rotation by gear drive, and then realize the ultrasonic examination of rod mono-to all RCCA.
When carrying out RCCA site inspection, the mono-rod of RCCA passes from ultrasonic examination center probe hole, rotates around single rod under the driven dynamic action of normal probe, and circumferential ultrasonic testing implemented by rod mono-to RCCA.
Claims (5)
1. a reactor control rod tread assembly ultrasonic examination detecting structure, including probe (5) and probe mandrel (1), it is characterized in that: described probe mandrel (1) is provided with bulge-structure, the central axial installing hole that is machined with of bulge-structure, is provided with probe (5) in hole；Described probe mandrel (1) center is machined with axially extending bore, and described through hole communicates with installing hole；Described probe mandrel (1) is provided with slot to make way (13), when multiple ultrasonic examination detecting structures work simultaneously, described slot to make way (13) coordinates with probe installing handle (14) position of adjacent ultrasonic examination detecting structure, and probe installing handle (14) is interior with the slot to make way (13) of adjacent ultrasonic examination detecting structure；
Also including being located at probe mandrel (1) bearing block (7) outward, it is installed by bearing；
Described bearing block (7) is provided with upper bearing (metal) installing hole (701) and lower bearing installing hole (702), it is provided with upper bearing (metal) (301) in upper bearing (metal) installing hole (701), in lower bearing installing hole 702, is provided with lower bearing (302)；Metal (upper (301,302) is sleeved on probe mandrel (1) outward；
Drawing privates from the heart yearn of probe (5), described upper bearing (metal) (301) inner ring is to privates radial compaction；The outer, bottom of upper bearing (metal) installing hole (701) is provided with privates；
Drawing the first wire from the shielding line of probe (5), described lower bearing (302) inner ring is to the first wire radial compaction；The stage outer of lower bearing installing hole (702) is provided with the second wire；
Described privates and the second wire are drawn as signal lead-out wire from probe mandrel (1) perforation.
2. a kind of reactor control rod tread assembly ultrasonic examination detecting structure as claimed in claim 1, it is characterised in that: described probe mandrel (1) outer set gear (6), it is positioned at probe installing handle (14) lower section of projection.
3. a kind of reactor control rod tread assembly ultrasonic examination detecting structure as claimed in claim 1, it is characterised in that: described probe installing handle (14) is provided with trip bolt (4).
4. a kind of reactor control rod tread assembly ultrasonic examination detecting structure as claimed in claim 1, it is characterized in that: the lower section of described lower bearing (302) is provided with snap ring (2), it is installed on probe mandrel (1) outward, from below lower bearing (302) is positioned.
5. a kind of reactor control rod tread assembly ultrasonic examination detecting structure as claimed in claim 1, it is characterized in that: the upper end suit of described probe mandrel (1) installs bearing (3), by snap ring (2) by its axial restraint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521017632.5U CN205538834U (en) | 2015-12-09 | 2015-12-09 | Structure is surveyed to reactor control cluster subassembly ultrasonic test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521017632.5U CN205538834U (en) | 2015-12-09 | 2015-12-09 | Structure is surveyed to reactor control cluster subassembly ultrasonic test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538834U true CN205538834U (en) | 2016-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521017632.5U Withdrawn - After Issue CN205538834U (en) | 2015-12-09 | 2015-12-09 | Structure is surveyed to reactor control cluster subassembly ultrasonic test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205538834U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855538A (en) * | 2015-12-09 | 2017-06-16 | 核动力运行研究所 | A kind of reactor control rod tread assembly ultrasonic examination detecting structure |
| CN108269633A (en) * | 2016-12-30 | 2018-07-10 | 核动力运行研究所 | Nuclear power station reactor control stick tread assembly check device detection probe driving device |
-
2015
- 2015-12-09 CN CN201521017632.5U patent/CN205538834U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855538A (en) * | 2015-12-09 | 2017-06-16 | 核动力运行研究所 | A kind of reactor control rod tread assembly ultrasonic examination detecting structure |
| CN106855538B (en) * | 2015-12-09 | 2023-08-15 | 核动力运行研究所 | Ultrasonic inspection detection structure of reactor control rod bundle assembly |
| CN108269633A (en) * | 2016-12-30 | 2018-07-10 | 核动力运行研究所 | Nuclear power station reactor control stick tread assembly check device detection probe driving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20230815 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20230815 |