CN201886790U - Automatic shifting platform for welding inspection of adapter of pressure vessel - Google Patents
Automatic shifting platform for welding inspection of adapter of pressure vessel Download PDFInfo
- Publication number
- CN201886790U CN201886790U CN2010206433723U CN201020643372U CN201886790U CN 201886790 U CN201886790 U CN 201886790U CN 2010206433723 U CN2010206433723 U CN 2010206433723U CN 201020643372 U CN201020643372 U CN 201020643372U CN 201886790 U CN201886790 U CN 201886790U
- Authority
- CN
- China
- Prior art keywords
- pressure vessel
- screw rod
- outer sleeve
- sleeve
- guide rail
- 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.)
- Expired - Lifetime
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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 utility model relates to the field of inspection of pressure vessels for nuclear reactors in a nuclear power station, and particularly discloses an automatic shifting platform for welding inspection of an adapter of a pressure vessel. The automatic shifting platform comprises an inner core tube and an outer sleeve, wherein a screw rod is fixedly arranged in the inner core tube; a linear guide rail is arranged on the outer wall of the inner core tube; a slotted channel is arranged on the inner wall of the outer sleeve; a screw rod sleeve is fixedly arranged in the outer sleeve; a guide rail support is arranged on the inner wall of the upper end of the outer sleeve; a nut is arranged at the upper end of the screw rod sleeve; threads are processed on the outer wall of the screw rod; and the upper end of the screw rod is connected with a worm gear drive device and a motor. The motor drives the worm gear drive device to rotate to further drive the screw rod to drive, so as to enable matched transmission of the screw rod and the screw rod sleeve, so that the platform can be lifted and lowered, and the horizontal heights of corresponding maintenance devices connected to the lower part of the automatic shifting platform are stable and controllable; meanwhile, by virtue of the cooperation of the linear guide rail and the guide rail support, and lifting and lowering of the platform can be limited to achieve stable running, so as to guarantee safety of the automatic shifting platform in a reactor.
Description
Technical field
The utility model belongs to the nuclear power station nuclear reactor pressure container and checks the field, is specifically related to a kind of pressure vessel and takes over the automatic displacement platform of welding inspection.
Background technology
Reactor pressure vessel (reactor pressure vessel) is the closed container of settling nuclear reactor and bearing its huge operating pressure, also claim reactor vessel, it is the key equipment in the pressurized-water reactor nuclear power plant, characteristics such as have manufacturing technology standard height, difficulty is big and the cycle is long, and be non-exchange equipment, must guarantee that it was perfectly safe in lifetime reliably at nuclear power station in 60 years.Because after the nuclear power station operation, the heat eliminating medium of examining in the loop (water) has had high radioactivity, high pollution, implementing these inspections all needs aid to implement, and checking needs long-range, robotization.
General reactor pressure vessel is made up of hood and pressure container cylinder.Top cover links up top cover and cylindrical shell by 45 kingbolts.The cylindrical shell of pressure vessel mainly is made up of main flange cylinder section, straight barrel section and low head.Main flange cylinder section is an annular forging piece, and 45 kingbolt threaded holes are arranged on the flange.Have 8 holes on the main flange cylinder section, wherein water inlet is taken over 4 holes, and water delivering orifice is taken over 2 holes, and peace is annotated pipe and taken over 2 holes, and this pore size distribution of three types is three aspects.Pressure vessel checks that object comprises above-mentioned three kinds of adapters.Every 90 ° of distribution keyways, originate in 0 ° in container on the main flange seam flange face, this keyway is as checking the platform locating slot.Pressure vessel is placed on nuclear island inside, the debugging assembling of personnel's facilities and equipments on the platform of nuclear island pond, ring in the nuclear island hangs, ring hangs highly about 20m, the stroke assurance operation erecting tools that ring hangs is sling equipment fully and is entered the pond, the pond approximate depth is at 9-10m, and installation suspension bridge in top, pond is convenient to personnel and is lifted pressure vessel checking machine in the above.
At present above-mentioned three kinds are taken over and implement to check main supreem (nuclear reactor pressure container inspection machine) check system that adopts US Westinghouse company, this check system adopts a plurality of stationary platforms, place and check mechanical hook-up, stationary platform is according to the reactor pressure vessel size design.The supreem check system checks that embodiment adopts layered plane stationary platform realization response core pressure vessel to check, as implementing to check according to former check system, need in the checking process frequent will check that machinery is portable and go out the water surface, change the locating device of platform, need the disassembly and assembly mechanical hook-up, and repeatedly dismounting will check that mechanical arm and locating platform hang out, and increase the supervision time.In addition, operation has frequently also strengthened the risk of implementing inspection on the reactor, and personnel's radioactive dose increases.
Summary of the invention
The purpose of this utility model is to provide the highly controlled pressure vessel of a kind of inspection to take over the automatic displacement platform of welding inspection, it can reduce the number of times that platform is left the water in checking the process of implementing, shortened because of checking the reactor holding time, reduced the risk of implementing inspection, the while compact conformation, the reliability height.
The technical solution of the utility model:
A kind of pressure vessel is taken over the automatic displacement platform of welding inspection, it comprises inner canister and outer sleeve, described inner canister internal fixation is provided with screw mandrel, outer wall is provided with line slideway, described outer sleeve inwall is provided with conduit, the outer sleeve internal fixation is provided with the screw mandrel sleeve, and outer sleeve upper end inwall is provided with guide rail bearing; Described screw mandrel sleeve upper end is a nut, is processed with screw thread on the screw mandrel outer wall; Described screw mandrel upper end connects worm gearing and motor.
Take in the automatic displacement platform of welding inspection at above-mentioned pressure vessel: described inner canister upper end is fixed with holder, and worm gearing and motor are installed in the holder, evenly are provided with supporting leg on the circumferencial direction of holder.
Take in the automatic displacement platform of welding inspection at above-mentioned pressure vessel: described guide rail bearing is a flange arrangement.
Take in the automatic displacement platform of welding inspection at above-mentioned pressure vessel: the conduit on the described guide rail bearing is 3, correspondingly evenly is provided with 3 line slideways on the outer wall circumferencial direction of inner canister, and line slideway moves in conduit respectively.
Take in the automatic displacement platform of welding inspection at above-mentioned pressure vessel: can fixedly connected mechanical arm under the described outer sleeve.
The beneficial effects of the utility model are: rotate by the driven by motor worm gearing, and then drive screw mandrel transmission, make the cooperation transmission of screw mandrel and screw mandrel sleeve, thereby the lifting of implementation platform and decline, the corresponding apparatus for examination and repair level height stable and controllable that therefore automatic displacement platform below connects; Cooperation by line slideway and guide rail bearing simultaneously to promoting and decline is carried out spacingly, realizes easy motion, guarantees the security of automatic displacement platform in reactor.
Description of drawings
Fig. 1 takes over the automatic displacement platform structure of welding inspection cut-open view for pressure vessel;
Fig. 2 takes over the structural representation of the automatic displacement platform of welding inspection for pressure vessel;
Fig. 3 is a holder interior details synoptic diagram;
Fig. 4 is inner canister and outer sleeve junction detailed schematic;
Fig. 5 takes over the automatic displacement platform of welding inspection scheme of installation for pressure vessel;
Among the figure: 1. motor; 2. worm gearing; 3. line slideway; 4. inner canister; 5. outer sleeve; 6. screw mandrel sleeve; 7. screw mandrel; 8. holder; 9. supporting leg; 10. mechanical arm; 11. joint flange; 12. guide rail bearing; 13. flange face; 14. pressure vessel; 15. nut; 16. conduit.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail:
All be fixedly mounted in the holder 8 as Fig. 1, Fig. 2 and Fig. 3 worm gearing 2 and motor 1, this worm gearing 2 is driven by motor 1.On the horizontal circumferencial direction in holder 8 outsides, can arrange that evenly three supporting legs 9 are as support platform for 120 ° in the interval.Holder 8 is fixedlyed connected with the upper end of inner canister 4 by joint flange 11.Inner canister 4 outer wall upper edge axis directions are installed line slideway 3, inner canister 4 housing type outer sleeves 5, screw mandrel 7 is arranged in the inner canister 4, and the worm screw of its upper end worm gearing 2 is fixedly connected, at outer sleeve 5 bottoms fixed installation screw mandrel sleeve 6, screw mandrel sleeve 6 upper ends are enclosed within outside screw mandrel 7 lower ends.Outer sleeve 5 upper ends also are equipped with guide rail bearing 12.In power station pressure vessel and equipment maintenance, can be in the lower end of outer sleeve 5 fixedly connected mechanical arm 10, perhaps other associative operation equipment can be realized the horizontal location of mechanical arm 10 and similar operations equipment.
Shown in Figure 4, outer sleeve 5 upper ends fixed installation guide rail bearing 12,12 one-tenth flange arrangements of guide rail bearing, guide rail bearing 12 are fixed on the upper end of outer sleeve 5 by flange arrangement, at outer sleeve 5 internal fixation screw mandrel sleeve 6 is installed, screw mandrel sleeve 6 upper ends are equipped with nut 15 by screw retention.Be processed with screw thread on screw mandrel 7 outer walls, its lower end is installed in the screw mandrel sleeve 6, and passes the nut 15 that is located at screw mandrel sleeve 6 quilts, by threaded engagement, realizes moving up and down.Fixed installation line slideway 3 on inner canister 4 outer walls, line slideway can be 3, becomes 120 ° evenly to arrange at inner canister 4 outer wall circumferencial directions, so at this moment, on the inwall correspondence position of outer sleeve 5, be processed with 3 conduits 16, become 120 ° evenly to arrange on the inherent outer sleeve 5 inwall circumferencial directions.
As shown in Figure 5, when pressure vessel 14 overhauls of the equipments begin, automatically the displacement platform adopts special-purpose lifting device to mount, locate by flange face 13 on the main flange cylindrical shell of pressure vessel 14 and positioning spline at three supporting legs 9 of installing on the holder 8, realize the fixing of whole automatic displacement platform, also determined the circumferential location of automatic displacement platform in pressure vessel 14 simultaneously.Platform falls behind the position, and the lifting checkout facility is mounted on the outer sleeve 5 of automatic displacement platform below by mechanical arm 10 or relevant device, and checkout facility is installed ready.
Claims (5)
1. a pressure vessel is taken over the automatic displacement platform of welding inspection, it comprises inner canister (4) and outer sleeve (5), it is characterized in that: inner canister (4) internal fixation is provided with screw mandrel (7), outer wall is provided with line slideway (3), described outer sleeve (5) inwall is provided with conduit (16), outer sleeve (5) internal fixation is provided with screw mandrel sleeve (6), and outer sleeve (5) upper end inwall is provided with guide rail bearing (12); Described screw mandrel sleeve (6) upper end is nut (15), is processed with screw thread on screw mandrel (7) outer wall; Described screw mandrel (7) upper end connects worm gearing (2) and motor (1).
2. pressure vessel as claimed in claim 1 is taken over the automatic displacement platform of welding inspection, it is characterized in that: described inner canister (4) upper end is fixed with holder (8), worm gearing (2) and motor (1) are installed in the holder (8), evenly are provided with supporting leg (9) on the circumferencial direction of holder (8).
3. pressure vessel as claimed in claim 1 or 2 is taken over the automatic displacement platform of welding inspection, and it is characterized in that: described guide rail bearing (12) is a flange arrangement.
4. pressure vessel as claimed in claim 3 is taken over the automatic displacement platform of welding inspection, it is characterized in that: conduit is 3 on described outer sleeve (5) inwall, corresponding 3 line slideways (3) that evenly are provided with on the outer wall circumferencial direction of inner canister (4), line slideway (3) move in conduit (16) respectively.
5. pressure vessel as claimed in claim 1 or 2 is taken over the automatic displacement platform of welding inspection, it is characterized in that: described outer sleeve (5) down can fixedly connected mechanical arm (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206433723U CN201886790U (en) | 2010-12-02 | 2010-12-02 | Automatic shifting platform for welding inspection of adapter of pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206433723U CN201886790U (en) | 2010-12-02 | 2010-12-02 | Automatic shifting platform for welding inspection of adapter of pressure vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886790U true CN201886790U (en) | 2011-06-29 |
Family
ID=44184338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206433723U Expired - Lifetime CN201886790U (en) | 2010-12-02 | 2010-12-02 | Automatic shifting platform for welding inspection of adapter of pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886790U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486943A (en) * | 2010-12-02 | 2012-06-06 | 核动力运行研究所 | Automatic shifting platform for welding inspection of adapter of pressure vessel |
| CN105142864A (en) * | 2013-04-15 | 2015-12-09 | 气体运输技术公司 | Equipment for carrying out maintenance and/or inspection operations inside a tank and method for installing such equipment |
-
2010
- 2010-12-02 CN CN2010206433723U patent/CN201886790U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486943A (en) * | 2010-12-02 | 2012-06-06 | 核动力运行研究所 | Automatic shifting platform for welding inspection of adapter of pressure vessel |
| CN102486943B (en) * | 2010-12-02 | 2014-11-05 | 核动力运行研究所 | Automatic shifting platform for welding inspection of adapter of pressure vessel |
| CN105142864A (en) * | 2013-04-15 | 2015-12-09 | 气体运输技术公司 | Equipment for carrying out maintenance and/or inspection operations inside a tank and method for installing such equipment |
| CN105142864B (en) * | 2013-04-15 | 2017-09-08 | 气体运输技术公司 | It is a kind of performed in container safeguard and/or inspection operation equipment and method for installing this equipment |
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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 |
Granted publication date: 20110629 Effective date of abandoning: 20141105 |
|
| RGAV | Abandon patent right to avoid regrant |