CN105806931A - Steam generator heat-transfer pipe eddy current detection rotation platform - Google Patents
Steam generator heat-transfer pipe eddy current detection rotation platform Download PDFInfo
- Publication number
- CN105806931A CN105806931A CN201410848230.3A CN201410848230A CN105806931A CN 105806931 A CN105806931 A CN 105806931A CN 201410848230 A CN201410848230 A CN 201410848230A CN 105806931 A CN105806931 A CN 105806931A
- Authority
- CN
- China
- Prior art keywords
- fixed
- guide rail
- steam generator
- transfer pipe
- column guide
- 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.)
- Pending
Links
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention relates to a steam generator heat-transfer pipe eddy current detection rotation platform. The platform comprises a stand column guide rail, a support block, a rotation ring, a large gear and a driving assembly. The support block is fixed to the stand column guide rail. The rotation ring sleeves the stand column guide rail. The lower end surface of the support block is fixed to the upper surface of the rotation ring. The large gear sleeves the rotation ring. A gap is formed between the large gear and the rotation ring. A fixing ring sleeves the stand column guide rail. The large gear is fixed to the upper surface of the fixed ring. The lower part of the fixed ring is provided with a positioning pin. A driving assembly matches with the large gear and drives the large gear to rotate. The platform improves rigidity of the whole eddy current collection device and greatly improves a collection device circumferential positioning precision.
Description
Technical field
The present invention relates to nuclear engineering technical field, be specifically related to the rotation platform of a kind of steam generator heat-transfer pipe vortex detection.
Background technology
In nuclear power station, steam generator heat-transfer pipe is the pressure boundary of the capital equipment of nuclear power station and reactor cooling system, and its pressure boundary area accounts for more than the 70% of primary Ioops border.Owing to heat-transfer pipe is the light-wall pipe of about 1mm, and operating condition is very severe, so heat-transfer pipe is always up the link that primary Ioops pressure boundary is the weakest.International nuclear power operational data statistics shows, be about more than 50% all there is heat-transfer pipe breakage in various degree with steam generator.Steam generator heat-transfer pipe is all regularly implemented preservice inspection and inservice inspection by domestic and international each nuclear power country.
The steam generator of the horizontal pair of collecting pipe structure that the steam generator of VVER-1000M unit adopts, heat-transfer pipe adopts horizontally disposed, is called horizontal steam generator.More than 10000 heat-transfer pipe passes through internal diameterHeat-transfer pipe is divided into cold and hot two large divisions by two vertical headers of wall thickness 171mm, and utilizes hydraulic pressure and mechanical expanding on header, shown in Fig. 1.In view of the particularity of horizontal steam generator structure, probe used location and taper attachment and vertical steam generator are entirely different.It is thus desirable to the rotation platform of a kind of novel steam generator heat-transfer pipe vortex detection, to realize detection equipment in the rotation within steam generator.
Summary of the invention
It is an object of the invention to provide a kind of rigidity improving a whole set of eddy current collecting device, improve the rotation platform of the steam generator heat-transfer pipe vortex detection of the circumferentially positioned precision of harvester greatly.
The present invention is achieved in that the rotation platform that a kind of steam generator heat-transfer pipe vortex detects, including column guide rail, bracer, rotating ring, gear wheel, driving assembly；
Prop up bracer to be fixed on column guide rail；Rotating ring is enclosed within outside column guide rail, and a bracer lower surface and rotating ring upper surface are fixed；Gear wheel is enclosed within outside rotating ring, and leaves gap between rotating ring；Fixing shrink ring is outside column guide rail, and gear wheel is fixed on described retainer ring upper surface；Retainer ring bottom is provided with alignment pin；Described driving assembly coordinates with described gear wheel, drives described bull gear drive.
Also include that its upper surface is fixed on the base plate of described retainer ring lower surface, its upper surface is fixed on the protection lid of described base plate lower surface；Described alignment pin is fixed on described protection lid lower surface.
Described driving assembly includes motor cabinet, motor；Described motor cabinet is fixed on described rotating ring upper surface；Described motor output shaft is equipped with little gear, and described little gear engages with described gear wheel.
Also including four-point contact ball, it is enclosed within outside column guide rail and is arranged between described rotating ring and retainer ring.
The invention has the beneficial effects as follows:
(1) present invention adopts gear wheel to be fixed on the structure of header upper end, improves the circumferentially positioned precision of harvester greatly.
(2) present invention adopts thin-walled four-point contact ball can bear connected load simultaneously, simplifies the supporting structure of harvester, the weight of alleviator.
(3) present invention adopts plastic part, it is to avoid rotation platform damages header.
Accompanying drawing explanation
Fig. 1 is horizontal steam generator header and heat-transfer pipe schematic diagram；
Fig. 2 is the rotation platform application schematic diagram of the steam generator heat-transfer pipe vortex detection of the present invention；
Fig. 3 is the rotation platform schematic diagram of the steam generator heat-transfer pipe vortex detection of the present invention；
In figure: 1-header；2-heat-transfer pipe；3-column guide rail；4-props up bracer；5-rotating ring；6-gear wheel；The little gear of 7-；8-motor cabinet；9-four-point contact ball；10-retainer ring；11-bottom end cover；12-base plate；13-protects lid；14-alignment pin；15-motor；16-change speed gear box；17-rotation platform.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail:
Horizontal steam generator is arranged horizontally, both sides are respectively perpendicular and arrange a cold and hot end header 1, it is assigned to each heat-transfer pipe 2 from the primary Ioops medium entrance hot junction header 1 that reactor pressure vessel comes and carries out heat exchange, after being then pooled to cold end header 1 again, enter cold section of reactor-loop；Header 1 upper end is provided with manhole and manhole flange.
The rotation platform 17 of the steam generator heat-transfer pipe vortex detection of the present invention includes motor 15, change speed gear box 16, column guide rail 3, a bracer 4, rotating ring 5, gear wheel 6, little gear 7, motor cabinet 8, four-point contact ball 9, retainer ring 10, bottom end cover 11, base plate 12, protection lid 13, alignment pin 14；
As it is shown on figure 3, two root post guide rails 3 be arranged in parallel, bottom is connected by connecting plate；Two bracer 4 sides are fixed with two column guide rails 3 respectively；Rotating ring 5 is enclosed within outside two root post guide rails 3；Two bracer 4 lower surfaces are fixed with rotating ring 5 upper surface；Motor cabinet 8 is fixed on described rotating ring upper surface；
Gear wheel 6 is enclosed within outside rotating ring 5, and leaves gap between rotating ring 5；
Gear wheel 6 is fixed on retainer ring 10 upper surface；Retainer ring 10 is enclosed within outside column guide rail 3；
Bottom end cover 11 and rotating ring 5 lower surface are fixed；Base plate 12 upper surface and retainer ring 10 lower surface are fixed, and base plate 12 lower surface is fixed with protection lid 13 upper surfaces；Two alignment pins 14 are fixed through protection lid 13 with base plate 12 lower surface；
Motor 15 is fixed on motor cabinet 8, and is connected with change speed gear box 16, and change speed gear box 16 output shaft is equipped with little gear 7；Little gear 7 engages with gear wheel 6.
Plastic protection cover 13 and alignment pin 14 in base plate 12 lower end; protection lid 13 is avoided that device scratch header upper end sealing surface; alignment pin 14 inserts the screwed hole on the manhole flange of header 1 upper end to being axially fixed, it is prevented that rotation platform damages sealing surface and the screwed hole at manhole place, header upper end.Four-point contact ball 9 is arranged between rotating ring 5 and retainer ring 10, and two relative movement parts are play supporting role, and can bear the connected loads such as axial, radial direction, reduces rotary part frictional resistance in motor process.Motor 15 rotates around gear wheel 6 through the little gear 7 of change speed gear box 16 speed change rear drive, thus the circumferential movement that rotate harvester that realization be arranged on column guide rail 3 between of ring 5 is rotated.
The reference diameter of gear wheel 6 is about suitable with the header diameter of heat-transfer pipe distribution section, and the position error of rotation depends primarily on the machining accuracy of gear.When Errors in Gear Processing is identical, the circumferentially positioned error of equipment relatively prior art can reduce 3 times accordingly.
Being provided with thin-walled four-point contact ball 9 in retainer ring 10, this bearing can bear radially, axially load and torque load.By using a bearing can bear connected load, the combination of alternative diagonally contact ball bearing, paired taper roll bearing or two kinds of different bearings, optimize overall structure, save space, decrease the size of entirety, alleviate weight.
The eddy current inspection rotation platform installed based on manhole flange face, header upper end in the present invention is a kind of special equipment implementing the detection of horizontal steam generator heat-transfer pipe vortex.In detection, rotation platform 17 is fixed on header upper end, as shown in Figure 2.
Claims (4)
1. the rotation platform of a steam generator heat-transfer pipe vortex detection, it is characterised in that: include column guide rail, bracer, rotating ring, gear wheel, driving assembly；
Prop up bracer to be fixed on column guide rail；Rotating ring is enclosed within outside column guide rail, and a bracer lower surface and rotating ring upper surface are fixed；Gear wheel is enclosed within outside rotating ring, and leaves gap between rotating ring；Fixing shrink ring is outside column guide rail, and gear wheel is fixed on described retainer ring upper surface；Retainer ring bottom is provided with alignment pin；Described driving assembly coordinates with described gear wheel, drives described bull gear drive.
2. the rotation platform of the steam generator heat-transfer pipe vortex detection described in claim 1, it is characterised in that: also include that its upper surface is fixed on the base plate of described retainer ring lower surface, its upper surface is fixed on the protection lid of described base plate lower surface；Described alignment pin is fixed on described protection lid lower surface.
3. the rotation platform of the steam generator heat-transfer pipe vortex detection described in claim 1, it is characterised in that: described driving assembly includes motor cabinet, motor；Described motor cabinet is fixed on described rotating ring upper surface；Described motor output shaft is equipped with little gear, and described little gear engages with described gear wheel.
4. the rotation platform of the steam generator heat-transfer pipe vortex detection described in claim 1, it is characterised in that: also including four-point contact ball, it is enclosed within outside column guide rail and is arranged between described rotating ring and retainer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848230.3A CN105806931A (en) | 2014-12-30 | 2014-12-30 | Steam generator heat-transfer pipe eddy current detection rotation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848230.3A CN105806931A (en) | 2014-12-30 | 2014-12-30 | Steam generator heat-transfer pipe eddy current detection rotation platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105806931A true CN105806931A (en) | 2016-07-27 |
Family
ID=56421501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410848230.3A Pending CN105806931A (en) | 2014-12-30 | 2014-12-30 | Steam generator heat-transfer pipe eddy current detection rotation platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105806931A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254436A (en) * | 2016-12-29 | 2018-07-06 | 核动力运行研究所 | A kind of cable installation for the detection of horizontal steam generator heat-transfer pipe vortex |
| CN109975394A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | Probe door stretching structure for the detection of horizontal steam generator heat-transfer pipe vortex |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09329686A (en) * | 1996-06-11 | 1997-12-22 | Mitsubishi Heavy Ind Ltd | Multiple probe-sending device assembly |
| JP2000046492A (en) * | 1998-07-30 | 2000-02-18 | Mitsubishi Heavy Ind Ltd | Scale removing apparatus for heat exchanger |
| CN101147030A (en) * | 2005-09-26 | 2008-03-19 | Inetec学院核工艺学有限公司 | DPS-double pusher system for pushing two eddy current probes simultaneously through two steam generator tubes of nuclear power plants |
| CN101667465A (en) * | 2009-11-27 | 2010-03-10 | 哈尔滨工程大学 | Robot for overhauling primary side of steam generator of nuclear power plant |
| CN102456420A (en) * | 2010-10-25 | 2012-05-16 | 韩国原子力研究院 | Finger grip type heat pipe inspection robot of steam generation |
| CN204758534U (en) * | 2014-12-30 | 2015-11-11 | 中核武汉核电运行技术股份有限公司 | Steam generator heat -transfer pipe eddy current inspection's rotary platform |
-
2014
- 2014-12-30 CN CN201410848230.3A patent/CN105806931A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09329686A (en) * | 1996-06-11 | 1997-12-22 | Mitsubishi Heavy Ind Ltd | Multiple probe-sending device assembly |
| JP2000046492A (en) * | 1998-07-30 | 2000-02-18 | Mitsubishi Heavy Ind Ltd | Scale removing apparatus for heat exchanger |
| CN101147030A (en) * | 2005-09-26 | 2008-03-19 | Inetec学院核工艺学有限公司 | DPS-double pusher system for pushing two eddy current probes simultaneously through two steam generator tubes of nuclear power plants |
| CN101667465A (en) * | 2009-11-27 | 2010-03-10 | 哈尔滨工程大学 | Robot for overhauling primary side of steam generator of nuclear power plant |
| CN102456420A (en) * | 2010-10-25 | 2012-05-16 | 韩国原子力研究院 | Finger grip type heat pipe inspection robot of steam generation |
| CN204758534U (en) * | 2014-12-30 | 2015-11-11 | 中核武汉核电运行技术股份有限公司 | Steam generator heat -transfer pipe eddy current inspection's rotary platform |
Non-Patent Citations (2)
| Title |
|---|
| NADINIC B ET AL.: "New advanced eddy current data acquisition and data analysis software for inspection of VVER 1000 steam generator’s tubes", 《THE EIGHTH INTERNATIONAL SEMINAR ON HORIZONTAL STEAM GENERATORS》 * |
| SERGIO GALOSIC ET AL.: "System for Eddy Current Inspection of VVER-440/1000 Steam Generator’s tubes", 《INTERNATIONAL CONFERENCE NUCLEAR ENERGY FOR NEW EUROPE 2009》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254436A (en) * | 2016-12-29 | 2018-07-06 | 核动力运行研究所 | A kind of cable installation for the detection of horizontal steam generator heat-transfer pipe vortex |
| CN108254436B (en) * | 2016-12-29 | 2023-10-24 | 核动力运行研究所 | Cable device for vortex detection of horizontal steam generator heat transfer tube |
| CN109975394A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | Probe door stretching structure for the detection of horizontal steam generator heat-transfer pipe vortex |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104708263A (en) | Clamp of welding platform for welding between pipelines | |
| CN211219634U (en) | Positioning device for processing inner ring and outer ring of bearing | |
| CN202382675U (en) | Geometric tolerance detecting device of inner cone holes and end faces of shaft parts | |
| CN106644480B (en) | Film in Tilting Pad Bearings lubrication property development test platform | |
| CN103111855A (en) | Large-diameter-height-ratio ultra-precision hydrostatic pressure rotary table | |
| CN105806931A (en) | Steam generator heat-transfer pipe eddy current detection rotation platform | |
| CN103256909A (en) | Roundness measurement device for turbine runner examination and repair | |
| JP6242589B2 (en) | How to assemble a wind turbine generator vertically | |
| CN204758534U (en) | Steam generator heat -transfer pipe eddy current inspection's rotary platform | |
| CN105562568A (en) | Vertical rolling expansion machine and rolling expansion method | |
| CN104964825A (en) | Vibration measuring instrument for super-large or super-heavy bearing | |
| CN104209738B (en) | Thrust foundation ring and lower machine frame assembling method | |
| CN201841489U (en) | Crankshaft flywheel positioning device | |
| CN103452867A (en) | Test bench for vertical double-flywheel canned motor pump | |
| CN104897103B (en) | Elastic locking transmission mechanism used for rotating shaft | |
| CN107676594A (en) | Precise rotating platform for X ray CT detection device | |
| CN215370615U (en) | High-strength self-aligning roller bearing convenient for mounting shrink sleeve | |
| CN216176788U (en) | Circumferential drilling device for gas seal ring of gas turbine | |
| CN103934722A (en) | Fixing mechanism for hollow ball screw pair | |
| CN203726253U (en) | Hollow ball screw pair fixing mechanism | |
| CN209773153U (en) | A steam turbine overhauls return bend auxiliary device for thermal power plant | |
| CN104551812B (en) | A kind of built-in machine tool main spindle driving device | |
| CN207353925U (en) | Easy to the large-scale vertical AC permanent-magnet torque direct driving motor mounting structure adjusted | |
| CN206254092U (en) | A kind of wind-driven generator centering tooling | |
| CN106272111A (en) | The efficient clamping positioning method of a kind of blower fan tower barrel and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160727 |