CN205351280U - Vertical takeover foreign body proof device of steam generator - Google Patents
Vertical takeover foreign body proof device of steam generator Download PDFInfo
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- CN205351280U CN205351280U CN201521015889.7U CN201521015889U CN205351280U CN 205351280 U CN205351280 U CN 205351280U CN 201521015889 U CN201521015889 U CN 201521015889U CN 205351280 U CN205351280 U CN 205351280U
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- leather cup
- steam generator
- action bars
- foreign matter
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Abstract
The utility model belongs to nuclear power station nondestructive testing technique specifically discloses a vertical takeover foreign body proof device of steam generator, including the action bars on upper portion and the leather cup of lower part, action bars and lower part leather cup between be equipped with detachable connection structure, the leather cup its make by elastic material, leather cup upper portion epitaxy is equipped with the lip limit, the middle section of leather cup is conic section, the leather cup bottom is equipped with the bottom plate, adopts elastic material to make the leather cup, the design on elastic lip limit can guarantee that leather cup and nozzle inner wall closely laminate, guarantees to prevent the foreign matter effect, reduces the leather cup simultaneously taking over inside decline during the installation, with nozzle inner wall's frictional force, the installation of being convenient for, the bottom plate of leather cup bottom is placed on the main pump impeller, adapts to the superstructure of impeller, leather cup side adopts the design of conic section structure can reduce its and nozzle inner wall's frictional force, has guiding orientation's effect simultaneously.
Description
Technical field
This utility model belongs to nuclear power station Dynamic Non-Destruction Measurement, has been specifically related to a kind of steam generator and has vertically taken over anti-foreign matter device.
Background technology
AP1000 nuclear power plant reactor cooling medium pump (also referred to as main pump) is arranged on steam generator bottom by welding vertical inversion, this design eliminates the ooling channel between steam generator and main pump, reduce the pressure drop of loop, simplify pedestal and the support system of steam generator, main pump and pipeline.But this weld seam bears the bad working environments such as high temperature, high pressure, high capacity and high-intensity oscillation when running.Constantly vibration in main pump running is likely to the extension of generation or the manufacturing defect causing defect risk in this weld seam, and it is checked the mandatory check scope listing China's nuclear facility goal in.
AP1000 steam generator water outlet adapter and main pump pump case are by weld connection, and water outlet adapter is vertically arranged.Main pump is canned motor pump, is broadly divided into hydraulic part and the big parts of motor two, and hydraulic part includes several parts such as pump case, suction inlet, impeller and diffusion room, and motor component connects pump case by flange bolt and is integrally togather.Water outlet adapter and main pump hydraulic modular construction.
When steam generator is implemented Non-Destructive Testing with main pump attachment weld, detected weld, in the lower section of water outlet adapter closure plate, causes this adapter closure plate to install.Inspection equipment and inspection personnel arrive water outlet adapter only by steam generator manhole, and water outlet tube diameter is much larger than people's bore dia.The part that comes off when inspection equipment is installed and in work process can directly crash into main pump impeller, in some instances it may even be possible to is rolled to main pipeline with impeller collision rift, and because steam generator internal irradiation dosage is big, impeller is narrow to main pipeline passage, pendant thing is substantially difficult to fetch.Thing can be fallen after unit reruns and primary Ioops equipment can be caused damage, therefore when steam generator is implemented Non-Destructive Testing with main pump attachment weld, take effective anti-foreign body measure extremely important.
Summary of the invention
The purpose of this utility model is in that to provide a kind of steam generator vertically to take over anti-foreign matter device, it is possible to ensureing to fit tightly with nozzle inner wall, anti-foreign body is effective, it is to avoid primary Ioops equipment is caused damage by foreign body.
The technical solution of the utility model is as follows:
Anti-foreign matter device vertically taken over by a kind of steam generator, including the leather cup of the action bars on top and bottom, is provided with dismountable attachment structure between described action bars and bottom leather cup；Described leather cup its be made up of elastomeric material, leather cup upper epitaxial is provided with lip, the stage casing of leather cup for cone section, be provided with base plate bottom leather cup.
Vertically take in anti-foreign matter device at above-mentioned a kind of steam generator: described dismountable attachment structure is the electric magnet being located on action bars and the Magnet suction block being located on adapting structure for electric.
Vertically taking in anti-foreign matter device at above-mentioned a kind of steam generator: described electric magnet is connected with action bars by pulley and operating rope, described Magnet suction block is connected with the hanger being located at leather cup upper end by connecting rope.
Vertically take in anti-foreign matter device at above-mentioned a kind of steam generator: described dismountable attachment structure is the hook being located in operation structure and the shackle being located on adapting structure for electric.
Vertically take in anti-foreign matter device at above-mentioned a kind of steam generator: described hook is connected with action bars by pulley and operating rope；Described shackle is connected with the hanger being located at leather cup upper end by connecting rope.
Vertically take in anti-foreign matter device at above-mentioned a kind of steam generator: described dismountable attachment structure is be located in operation structure gas and grab and be located to grab block on adapting structure for electric.
Vertically take in anti-foreign matter device at above-mentioned a kind of steam generator: described gas is grabbed and is connected with action bars by pulley and operating rope；Described block of grabbing is connected with the hanger being located at leather cup upper end by connecting rope.
Vertically take in anti-foreign matter device at above-mentioned a kind of steam generator: described elastomeric material is rubber.
Vertically take in anti-foreign matter device at above-mentioned a kind of steam generator: described rubber is polyurethane rubber.
The beneficial effects of the utility model are in that:
Adopting elastomeric material to make leather cup, the guarantee leather cup that is designed to of elastic lip fits tightly with nozzle inner wall, it is ensured that anti-foreign body effect, reduces leather cup when nozzle interior declines and installs, with the frictional force of nozzle inner wall, it is simple to installation simultaneously；
Base plate bottom leather cup is placed in main pump impeller, adapts to the superstructure of impeller；Leather cup side adopt cone section structure be designed to reduce its frictional force with nozzle inner wall, there is the effect of guide-localization simultaneously；
Further, the material of leather cup selects to have elastic material and make, for instance rubber.During installation, it is possible to folded laggard manhole, fit tightly with nozzle inner wall, it is simple to install simultaneously, applied widely, and anti-foreign body effect is better.
The additionally operation structure of design above leather cup, its electric magnet installed by action bars and front end, operation structure matches with the Magnet suction block on leather cup top, utilizes the effect of Magnet placed by leather cup or take out during installation or removal.
Accompanying drawing explanation
Fig. 1 is leather cup schematic diagram；
Anti-foreign matter device schematic diagram vertically taken over by the steam generator that Fig. 2 is embodiment 1；
Fig. 3 is leather cup shirt rim view when transferring；
Fig. 4 is leather cup shirt rim view when lifting up；
In figure: 1. leather cup；2. connect rope；3. Magnet suction block；4. electric magnet；5. action bars；6. operating rope；7. base plate；8. cone section；9. hanger；10. lip；
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, this utility model is described in further detail.
Steam generator is vertically taken over anti-foreign matter device and is included the action bars 5 on top and leather cup 1 structure of bottom, and the connection of the leather cup 1 of action bars 5 and bottom is dismountable.
Action bars 5 is that operator utilize dismountable attachment structure in order to be placed in the middle of adapter by the leather cup 1 of bottom, outside manhole, leather cup 1 is operated；
Leather cup 1 fits tightly nozzle inner wall, utilizes deadweight to be arranged in main pump impeller.The pendant thing in detection process is avoided to enter primary Ioops.
As it is shown in figure 1, leather cup 1 includes the cone section 8 at middle part, cone section is for 8 times base plate 7, and described cone section 8 and base plate 7 integration are processed, and the top processing of cone section 8 has the lip 10 that a circle turns up, and in cone section 8, also processing has hanger 9.
Described dismountable attachment structure has two kinds, and Magnet connects, hook connects or gas is grabbed block and connected.
Embodiment 1
As shown in Figure 2, the absorption utilizing Magnet realizes action bars 5 and the dismounting of leather cup 1, installing electric magnet 4 in one end of action bars 5 by pulley and operating rope 6, install Magnet suction block 3 in leather cup 1 upper end, this Magnet suction block 3 is connected with the hanger 9 of leather cup 1 upper end by connecting rope 2.
Before AP1000 steam generator is implemented Non-Destructive Testing with main pump attachment weld, first steam generator water outlet adapter closure plate is removed, operator's bending leather cup 1, sends into inside steam generator by steam generator manhole, is connected with leather cup 1 by action bars 5 after electric magnet 4 energising.
Then leather cup 1 is delivered to water outlet adapter top by action bars 5 by operator, is slowly put down operating rope 6 by pulley, and leather cup 1 declines under Gravitative Loads, because of frictional force effect, lip 10 is turned over, as shown in Figure 3.Base plate 7 at leather cup 1 is transferred to impeller, electric magnet 4 power-off, is taken out from steam generator is internal by action bars 5, completes installation process, come into effect Non-Destructive Testing.
After completing whole Detection task, action bars 5 is delivered in water outlet adapter by operator, and operating rope 6 is put to appropriate length, and then electric magnet 5 is energized, and leather cup 1 is connected with action bars 5 by electric magnet 4 under magneticaction, then tightens up operating rope 6, lifts up leather cup 1.Leather cup 1 is in lifting up process, and because of frictional force effect, lip turns over reduction and inwall frictional force for 10 times, it is simple to take out, as shown in Figure 4.Leather cup 1 takes to steam generator man-hole opening place, owing to it adopts elastomeric material to make, it is simple to take out from manhole, thus completing disassembly process.
Above-mentioned electric magnet 5 can adopt minisize dc sucked type electric magnet, and volume is little, absorption affinity is big, uses unidirectional current during work.
Embodiment 2
Difference from Example 1 is in that, hook and shackle is utilized to realize action bars 5 and the dismounting of leather cup 1, in one end of action bars 5 by pulley and operating rope 6 mounting hook, installing shackle in leather cup 1 upper end, this shackle is connected with the hanger 9 of leather cup 1 upper end by connecting rope 2.
Hook catches on shackle and realizes action bars 5 and the connection of leather cup 1, links up with and realizes action bars 5 and the dismounting of leather cup 1 from shackle removal.
Embodiment 3
Difference from Example 1 is in that, utilize gas to grab and grab block and realize action bars 5 and the dismounting of leather cup 1, being installed gas in one end of action bars 5 grabbed by pulley and operating rope 6, install in leather cup 1 upper end and grab block, this is grabbed block and is connected with the hanger 9 of leather cup 1 upper end by connecting rope 2.
Gas is grabbed to tighten up and is picked up, by grabbing block, the connection realizing action bars 5 and leather cup 1, and gas is grabbed and unclamped grabbing block, it is achieved the dismounting of action bars 5 and leather cup 1.
Claims (9)
1. an anti-foreign matter device vertically taken over by steam generator, including the leather cup of the action bars on top and bottom, it is characterised in that: it is provided with dismountable attachment structure between described action bars and bottom leather cup；Described leather cup its be made up of elastomeric material, leather cup upper epitaxial is provided with lip, the stage casing of leather cup for cone section, be provided with base plate bottom leather cup.
2. anti-foreign matter device vertically taken over by a kind of steam generator as claimed in claim 1, it is characterised in that: described dismountable attachment structure is the electric magnet being located on action bars and the Magnet suction block being located on adapting structure for electric.
3. anti-foreign matter device vertically taken over by a kind of steam generator as claimed in claim 2, it is characterised in that: described electric magnet is connected with action bars by pulley and operating rope, and described Magnet suction block is connected with the hanger being located at leather cup upper end by connecting rope.
4. anti-foreign matter device vertically taken over by a kind of steam generator as claimed in claim 1, it is characterised in that: described dismountable attachment structure is the hook being located in operation structure and the shackle being located on adapting structure for electric.
5. anti-foreign matter device vertically taken over by a kind of steam generator as claimed in claim 4, it is characterised in that: described hook is connected with action bars by pulley and operating rope；Described shackle is connected with the hanger being located at leather cup upper end by connecting rope.
6. anti-foreign matter device vertically taken over by steam generator as claimed in claim 1 a kind of, it is characterised in that: described dismountable attachment structure is be located in operation structure gas and grab and be located to grab block on adapting structure for electric.
7. anti-foreign matter device vertically taken over by a kind of steam generator as claimed in claim 6, it is characterised in that: described gas is grabbed and is connected with action bars by pulley and operating rope；Described block of grabbing is connected with the hanger being located at leather cup upper end by connecting rope.
8. anti-foreign matter device vertically taken over by a kind of steam generator as described in claim 1～7 any one, it is characterised in that: described elastomeric material is rubber.
9. anti-foreign matter device vertically taken over by a kind of steam generator as claimed in claim 8, it is characterised in that: described rubber is polyurethane rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521015889.7U CN205351280U (en) | 2015-12-09 | 2015-12-09 | Vertical takeover foreign body proof device of steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521015889.7U CN205351280U (en) | 2015-12-09 | 2015-12-09 | Vertical takeover foreign body proof device of steam generator |
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| Publication Number | Publication Date |
|---|---|
| CN205351280U true CN205351280U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521015889.7U Active CN205351280U (en) | 2015-12-09 | 2015-12-09 | Vertical takeover foreign body proof device of steam generator |
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| CN (1) | CN205351280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855225A (en) * | 2015-12-09 | 2017-06-16 | 核动力运行研究所 | A kind of steam generator takes over anti-foreign matter device vertically |
-
2015
- 2015-12-09 CN CN201521015889.7U patent/CN205351280U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855225A (en) * | 2015-12-09 | 2017-06-16 | 核动力运行研究所 | A kind of steam generator takes over anti-foreign matter device vertically |
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