CN107958713A - A kind of video inspection device of steam generator nozzle inner wall - Google Patents
A kind of video inspection device of steam generator nozzle inner wall Download PDFInfo
- Publication number
- CN107958713A CN107958713A CN201610898312.8A CN201610898312A CN107958713A CN 107958713 A CN107958713 A CN 107958713A CN 201610898312 A CN201610898312 A CN 201610898312A CN 107958713 A CN107958713 A CN 107958713A
- Authority
- CN
- China
- Prior art keywords
- shaft
- housing
- pressing plate
- steam generator
- inspection device
- Prior art date
- 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.)
- Granted
Links
- 238000007689 inspection Methods 0.000 title claims abstract description 25
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/017—Inspection or maintenance of pipe-lines or tubes in nuclear installations
-
- 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
Landscapes
- 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
Present invention design nuclear power station service technique field, specifically disclose a kind of video inspection device of steam generator nozzle inner wall, including shaft, motor, mounting base for camera head and housing, shaft passes through housing, housing lower end is equipped with circumferential slider and pressing plate, the pressing plate pushes down circumferential slider bottom, make bottom mounting plate between pressing plate and housing, arc chute is machined with the pressing plate, the main body of circumferential slider is located in arc chute, shifting block is fixed with the shaft, the shifting block is located at below pressing plate.Motor drives camera mount to rotate, and then drives and check that camera carries out video check.Design shifting block slide block structure prevents cable winds, while countershaft progress is circumferentially positioned.
Description
Technical field
The invention belongs to technical field, and in particular to a kind of check device of steam generator nozzle inner wall.
Background technology
Inservice inspection for steam generator main pipeline adapter inner circle angular region, ASME XI volume (98 editions+99 and 2000 benefits
Lose) eliminate inspection requirements to steam generator adapter inner circle angular region.But in the CFR50 regulations that U.S.'s core pipe can be promulgated clearly
It need to implement volume inspection to this adapter inner circle angular region or high power visually inspects, and no longer adopt the related request of ASME XI volume.
Since CFR50 belongs to United States Federal Regulations, its legal effect is higher than specification, therefore the project belongs to mandatory check content in the U.S..
The generation Ⅲ nuclear power unit that AP1000 type nuclear power generating sets are China to be introduced from the western room in the U.S., nuclear facility portion of China
Door also accordingly proposes the inservice inspection requirement of steam generator main pipeline adapter inner circle angular region, and has brought three, Haiyang into
Inservice inspection outline.It can be appreciated that following all AP1000 type units are both needed to perform the inspection of the project.
AP1000 steam generators usually have 5 adapters, and adapter 1 of respectively intaking, is arranged in evaporator hydroecium hot junction；
Water outlet pipe 2, remaining row's adapter 1, CVS adapters 1 are arranged in hydroecium cold end.Respectively there is 1 manhole in hydroecium cold end and hot junction
Hydroecium passage is passed in and out for personnel, equipment.
The content of the invention
It is an object of the invention to provide a kind of video inspection device of steam generator nozzle inner wall, it can realize steaming
The video check of vapour generator nozzle inner wall.
Technical scheme is as follows：
A kind of video inspection device of steam generator nozzle inner wall, including shaft, be connected with shaft upper end driving electricity
Machine, the mounting base for camera head being connected with shaft lower end, further include housing, and the shaft passes through housing, and housing lower end is equipped with week
To sliding block and pressing plate, the pressing plate pushes down circumferential slider bottom, makes bottom mounting plate between pressing plate and housing, described
Pressing plate on be machined with arc chute, the main body of circumferential slider is located in arc chute, and shifting block is fixed with the shaft,
The shifting block is located at below pressing plate.
In a kind of video inspection device of above-mentioned steam generator nozzle inner wall, the shaft upper end passes through shaft coupling
The output axis connection of device and motor.
In a kind of video inspection device of above-mentioned steam generator nozzle inner wall, the shaft, which is equipped with, slows down
Device.
In a kind of video inspection device of above-mentioned steam generator nozzle inner wall, connection is equipped with above the housing
Bar, the connecting rod are the ladder rod-like structure with inner cavity, and the output shaft of the driving motor is located at the inner cavity of connecting rod,
And output shaft is coaxial with connecting rod.
In a kind of video inspection device of above-mentioned steam generator nozzle inner wall, between the housing and connecting rod
Motor cabinet is fixed with, the driving motor is installed by motor cabinet and fixed.
In a kind of video inspection device of above-mentioned steam generator nozzle inner wall, the circumferential slider connects with shifting block
Tactile end face is equipped with rubber block.
The remarkable result of the present invention is：Video inspection device is pacified by connecting rod, rotational drive motor, housing, camera
Fill seat composition.Motor drives camera mount to rotate, and then drives and check that camera carries out video check.Driven using motor
Harmonic gear reducer；Mounting means is fixed for steel wheel, the flexbile gear way of output；Flexbile gear drives shaft to rotate, and then drives shooting
Head mounting base rotates.Video check circumferential direction scanning scope is 360 °, and to avoid cable winds, rotation driving part has circumferential spacing
Function, it is circumferentially spacing to use mechanical position limitation, drive circumferential slider to rotate by being connected with the rotating shaft shifting block, to avoid impact,
There is rubber block at sliding block both ends.
Brief description of the drawings
Fig. 1 is the video inspection device schematic diagram of the steam generator nozzle inner wall of the present invention；
Fig. 2 is circumferential slider and shifting block scheme of installation；
In figure：1st, connecting rod；2nd, shaft coupling；3rd, retarder；4th, housing；5th, shaft；6th, mounting base for camera head；7th, shifting block；
8th, circumferential slider；9th, pressing plate；10th, motor；11st, motor cabinet.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail the present invention.
As shown in Figure 1, connecting rod 1 is the ladder rod-like structure with inner cavity, the output shaft of motor 10 is located at connecting rod 1
Inner cavity.Motor cabinet 11 is located at the lower section of connecting rod 1, is bolted with connecting rod 1.
In motor cabinet 11, the output shaft of motor 10 is connected with the upper end of shaft 5 by shaft coupling 2, and motor 10 is with turn
Axis 5 rotates.The lower end of motor cabinet 11, which is bolted, installs housing 4, and the retarder 3 in shaft 5 is located in the housing 4, together
When shaft 5 pass through housing 4, stretch out the lower section of housing 4.Mounting base for camera head 6 is fixedly mounted in the lower end of shaft 5, is examined for installing
Survey camera.
The upper end of connecting rod 1 is installed with flange, is connected for whole video inspection device with other equipment.
Motor 10 can be fixedly mounted on outside connecting rod 1, and the output terminal of motor 10 is located at the inner cavity of connecting rod 1, and motor is defeated
Shaft and connecting rod 1 are coaxial, and the lower end of output shaft is fixedly connected with the upper end of shaft 5, therefore motor 10 passes through output shaft band turn
Axis 5 rotates.
Shaft 5 sequentially passes through shaft coupling 2 and retarder 3 from top to bottom, extend into housing 4.4 company of being fixedly mounted on of housing
1 lower end of extension bar, the upper end of housing 4 are connected by screw or other modes that are fixedly connected with 1 lower surface of connecting rod.Retarder 3
By way of conventional, as steel wheel is fixed, the flexbile gear way of output is installed on inside housing 4.4 lower ending opening of housing, above-mentioned turns
Axis 5 is pierced by housing 4 by the opening.
After motor 10 drives shaft 5 to rotate, shaft 5 drives camera in steam generator by mounting base for camera head 6
Rotated in adapter, realize the scanning in the range of 360 °.Due to having cable on camera, to avoid cable from winding, to turning
Axis takes circumferential machinery positioning.As shown in Fig. 2, pressing plate 9 is fixedly mounted in 4 lower end of housing, the upper Machining Arc shape of pressing plate 9 is slided
Groove, the bottom panel of circumferential slider 8 is installed between 4 lower surface of pressing plate 9 and housing.That is pressing plate 9 is by the bottom panel of circumferential slider 8
Compression is installed on 4 lower surface of housing, and both circumferentially the main body of sliding block 8 is located in the arc chute of pressing plate 9.Installed in shaft 5
There is shifting block 7, shifting block 7 is fixed with shaft 5, and when shaft 5 rotates, shifting block 7 coordinates with above-mentioned circumferential slider 8, passes through arc-shaped cunning
Groove is spacing, and the rotation of shaft 5 is limited in circumferential a certain range.Therefore prevent that the camera rotation that shaft 5 drives is excessive, prevent
Only cable is wound.
Claims (6)
1. a kind of video inspection device of steam generator nozzle inner wall, including shaft (5), the drive that is connected with shaft (5) upper end
Dynamic motor, the mounting base for camera head (6) being connected with shaft (5) lower end, it is characterised in that：Further include housing (4), the shaft
(5) housing (4) is passed through, housing (4) lower end is equipped with circumferential slider (8) and pressing plate (9), and the pressing plate (9) is by circumferential slider (8)
Bottom push down, bottom mounting plate is located between pressing plate (9) and housing (4), arc chute be machined with the pressing plate 9,
The main body of circumferential slider (8) is located in arc chute, and shifting block (7), the shifting block (7) are fixed with the shaft (5)
Below pressing plate (9).
A kind of 2. video inspection device of steam generator nozzle inner wall as claimed in claim 1, it is characterised in that：Described
The output axis connection that shaft (5) upper end passes through shaft coupling (2) and motor.
A kind of 3. video inspection device of steam generator nozzle inner wall as claimed in claim 1, it is characterised in that：Described
Shaft (5) is equipped with retarder (3).
A kind of 4. video inspection device of steam generator nozzle inner wall as claimed in claim 1, it is characterised in that：Described
It is equipped with connecting rod (1) above housing (4), the connecting rod (1) is the ladder rod-like structure with inner cavity, the driving motor
Output shaft be located at the inner cavity of connecting rod (1), and output shaft and connecting rod (1) are coaxial.
A kind of 5. video inspection device of steam generator nozzle inner wall as claimed in claim 4, it is characterised in that：Described
Motor cabinet (11) is fixed between housing (4) and connecting rod (1), the driving motor is installed solid by motor cabinet (11)
It is fixed.
A kind of 6. video inspection device of steam generator nozzle inner wall as claimed in claim 1, it is characterised in that：Described
The end face that circumferential slider (8) is contacted with shifting block (7) is equipped with rubber block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610898312.8A CN107958713B (en) | 2016-10-14 | 2016-10-14 | Video inspection device for inner wall of steam generator connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610898312.8A CN107958713B (en) | 2016-10-14 | 2016-10-14 | Video inspection device for inner wall of steam generator connecting pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107958713A true CN107958713A (en) | 2018-04-24 |
| CN107958713B CN107958713B (en) | 2024-02-09 |
Family
ID=61953198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610898312.8A Active CN107958713B (en) | 2016-10-14 | 2016-10-14 | Video inspection device for inner wall of steam generator connecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107958713B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110689977A (en) * | 2019-09-11 | 2020-01-14 | 苏州热工研究院有限公司 | Video inspection equipment and method suitable for steam generator tube plate |
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| CN104078088A (en) * | 2014-07-01 | 2014-10-01 | 中科华核电技术研究院有限公司 | Nuclear power station climbing robot system and method for detecting secondary side of steam generator |
| CN204044081U (en) * | 2013-12-30 | 2014-12-24 | 山东北方光学电子有限公司 | Continuous stepping rotating mechanism |
| CN204270661U (en) * | 2014-12-25 | 2015-04-15 | 福建宁德核电有限公司 | A kind of used in nuclear power station image pick-up detection device and image mechanism thereof |
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| CN204785652U (en) * | 2015-06-04 | 2015-11-18 | 绍兴路曼光电科技有限公司 | LED fluorescent tube base rotary device |
| CN105810264A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Vector control underwater planktonic video inspection device |
| CN206179529U (en) * | 2016-10-14 | 2017-05-17 | 核动力运行研究所 | Steam generator nozzle inner wall's video inspection device |
-
2016
- 2016-10-14 CN CN201610898312.8A patent/CN107958713B/en active Active
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| US6313869B1 (en) * | 1999-03-09 | 2001-11-06 | Edward J. Hyp | J nozzle articulating camera system |
| DE10130343A1 (en) * | 2001-06-27 | 2003-01-16 | Webasto Tuersysteme Gmbh | Rotation angle measurement device for a rotating shaft, especially a motor vehicle steering wheel shaft is configured so that errors caused by deflection of the rotating shaft end are avoided |
| US6639959B1 (en) * | 2002-05-06 | 2003-10-28 | General Electric Company | Guide tube camera inspection fixture and method of use |
| JP2009180595A (en) * | 2008-01-30 | 2009-08-13 | Hitachi-Ge Nuclear Energy Ltd | Pipe inner face inspecting device |
| CN101364451A (en) * | 2008-09-28 | 2009-02-11 | 苏州热工研究院有限公司 | Closed-circuit television inspection apparatus for top cover of reactor pressure vessel |
| CN101936679A (en) * | 2009-07-01 | 2011-01-05 | 韩电Kps株式会社 | Apparatus for visually inspecting and removing foreign object in gaps of bundle of heating tubes of upper portion of tube sheet of secondary side of steam generator |
| US20120148010A1 (en) * | 2010-12-13 | 2012-06-14 | Westinghouse Electric Company Llc | Top guide inspection fixture |
| CN203164823U (en) * | 2012-11-27 | 2013-08-28 | 王新杰 | Safe plastic housing chassis portable computer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110689977A (en) * | 2019-09-11 | 2020-01-14 | 苏州热工研究院有限公司 | Video inspection equipment and method suitable for steam generator tube plate |
| CN110689977B (en) * | 2019-09-11 | 2021-01-01 | 苏州热工研究院有限公司 | Video inspection equipment and method suitable for steam generator tube plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107958713B (en) | 2024-02-09 |
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