CN102543230A - Tipping device with interlocking function - Google Patents
Tipping device with interlocking function Download PDFInfo
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- CN102543230A CN102543230A CN201110309765XA CN201110309765A CN102543230A CN 102543230 A CN102543230 A CN 102543230A CN 201110309765X A CN201110309765X A CN 201110309765XA CN 201110309765 A CN201110309765 A CN 201110309765A CN 102543230 A CN102543230 A CN 102543230A
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- China
- Prior art keywords
- basket
- tumbling
- slide plate
- tipping
- block
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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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Abstract
The invention belongs to operating devices in the field of nuclear fuel of a pressurized water reactor nuclear power station, and particularly discloses a tipping device with an interlocking function. The tipping device comprises a tipping basket, a top cover is arranged at the upper end of the tipping basket, a base cover is arranged at the lower end of the tipping basket, same interlocking devices are symmetrically arranged on the upper portion and the lower portion of the tipping basket respectively, each interlocking device comprises a slider and a sliding board which are hinged, a push rod is arranged on a short side of the sliding board, a supporting block is fixedly arranged on the tipping basket, two cylindrical rods are fixedly arranged on the supporting block, back-moving springs are installed on the cylindrical rods, and the back-moving springs are located between the side of the short side of the sliding board and the supporting block. The tipping device can guarantee safety of damaged fuel assemblies after irradiation during tipping, effectively avoid artificial incorrect manipulation, and enable tipping movement of damaged fuel assemblies after irradiation to be in a safe state continuously.
Description
Technical field
The invention belongs to pressurized-water reactor nuclear power plant nuclear fuel field operating means, be specifically related to a kind of tipple with interlock.
Background technology
Nuclear power station reloads in the process, finds that damaged or its grid spacer coaming plate of the fuel rod of multiplexing fuel assembly has damage in various degree.The security generation significant impact of damaged meeting to the power station operation appears in fuel assembly behind the irradiation.The damaged leakage of fuel rod can cause radioactive fission product to leak in the circuit cools agent, causes system's radioactive level to increase.Damaged fuel assembly considers that the risk control of security of operation does not allow to return again stack operation in principle.The damage of spacer grid of fuel assembly coaming plate is meant the local slight damage of the peripheral coaming plate of screen work behind the irradiation, outer the sticking up of indivedual guide vane distortion.Because reactor core fuel assembly spacing distance is very little; The local slight damage of grid spacer coaming plate, the outer fuel assembly that sticks up of guide vane distortion are in loading and unloading material process; Be easy to block, scrape, draw, thereby the safety of adjacent fuel assembly is produced threat with the generation of adjacent fuel assembly.If these assemblies are not handled, in view of safe consideration will not allow back heap multiplexing.
In addition, if the fuel assembly of and grid spacer coaming plate damage damaged to fuel rod behind the irradiation is not repaired and handled, also can cause enormous economic loss.According to desired 1/4, the 1/8 symmetrical requirement of refuelling scheme; Supposing that group fuel assembly damage is unavailable will cause other three groups of normal fuel assemblies on the reactor core symmetric position can't go into heap using; Will be with causing great waste; And interim calculating and checks that starts emergent refuelling scheme needs nearly one month, and this reloads prolongation time of overhaul, and the economic loss that causes will be will ten minutes huge.
Therefore, repair being carried out in the fuel rod breakage of fuel assembly behind the irradiation or grid spacer damage is significant.
For fuel assembly behind the dismountable irradiation of bottom nozzle, no matter be fuel rod breakage or grid spacer damage, repair process all needs damaged fuel assembly is tumbled, and just can carry out follow-up repair.Yet the fuel assembly behind the irradiation self has been activated and has become radioactive source, has extremely strong radioactivity, and the staff can't be approaching under normal condition, need be down in boron water shielding, use tumble basket with the damaged fuel assembly safety and steady tumble.
Summary of the invention
The object of the present invention is to provide a kind ofly to make that the action of tumbling of damaged fuel assembly is in a safe condition all the time behind the irradiation, can prevent effectively that the people from being the tipple with interlock of maloperation.
Technical scheme of the present invention is following:
A kind of tipple with interlock, it comprises the basket of tumbling, and the said basket upper end of tumbling is fixed with top cover, and the lower end is fixed with bottom, and two parts are arranged with identical interlocking device respectively about the described basket of tumbling; Described interlocking device comprises a pair of slide block that is hinged on the basket middle part of tumbling, and this slide block top is provided with slide plate, and this slide plate and slide block are hinged; Described slide plate is the L type, and its short brink is provided with two circular holes, and is fixed with push rod on the slide plate short brink; On the basket of tumbling, be fixed with back-up block, be fixed with two cylindrical bars on it, and with the slide plate short brink on the position of circular hole corresponding, on the described cylindrical bar back-moving spring is housed, this back-moving spring is between the short brink and back-up block of slide plate.
In above-mentioned tipple with interlock: be fixed with two briquettings on the described basket of tumbling, this briquetting lays respectively at the both sides of slide plate.
In above-mentioned tipple with interlock: the described basket upper end of tumbling is connected through flange with top cover; The lower end is connected through flange with bottom; Be respectively equipped with top cover coupling bolt and bottom coupling bolt on the flange face up and down, and both and push rod are positioned on the same vertical direction.
In above-mentioned tipple with interlock: described slide plate lower end is provided with hole A, and said slide block is provided with hole B and hole C, and an end relative with B position, hole be provided with block face, and slide plate and slide block are hinged through hole B and hole A.
Remarkable result of the present invention is: through on the basket of tumbling of routine, interlocking device being set; After the end cap of the feasible basket of tumbling all was in locking state, the slide block on the basket of tumbling can be removed with the bearing of tumbling and interfere, and the basket of tumbling just can be tumbled; And when other states; The slide block on the basket of tumbling can form with the bearing of tumbling interferes, and the basket of tumbling can not be tumbled, thereby guarantees the security of damaged fuel assembly when tumbling behind the irradiation.Behind the irradiation of tumbling, during damaged fuel assembly, can prevent effectively that the people from being maloperation, the action of tumbling is in a safe condition all the time with making behind the irradiation damaged fuel assembly.
Description of drawings
Fig. 1 is the tipple general structure synoptic diagram with interlock of the present invention;
Fig. 2 is the local relative position synoptic diagram that amplifies of back-moving spring, slide plate, briquetting, slide block, back-up block and cylindrical bar;
Fig. 3 a is the slide plate synoptic diagram;
Fig. 3 b is the left view of Fig. 3 a;
Fig. 4 is the slide block synoptic diagram;
Fig. 5 is the bearing synoptic diagram of tumbling;
Fig. 6 is the synoptic diagram that slide block and block are removed interlocking
Fig. 7 is the synoptic diagram that slide block and block form interlocking
Among the figure: 1. top cover; 2. top cover coupling bolt; 3. push rod; 4. slide plate; 5. briquetting; 6. slide block; 7. the basket of tumbling; 8. bottom coupling bolt; 9. bottom; 10. back-up block; 11. cylindrical bar; 12. back-moving spring; 13. hole A; 14. hole B; 15. hole C; 16. block face; 17. block; The bearing 18. tumble.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further explain.
As depicted in figs. 1 and 2, two parts up and down of the basket 7 of tumbling symmetry be separately installed with a cover interlocking device.
Interlocking device with the first half is the example explanation: this interlocking device comprises a pair of slide block 6 that is hingedly mounted on the basket 7 of tumbling; The be articulated and connected slide plate 4 of its top of two slide blocks 6, slide plate 4 be the L type, on its minor face, vertically fixedly mounts push rod 3; And the short brink at slide plate 4 is processed with two circular holes; On the basket 7 of tumbling, be fixed with back-up block 10, be installed with two springs on the back-up block 10 cylindrical bars 11 are installed, the position of this cylindrical bar 11 just in time with slide plate 4 short brinks on two circular hole positions corresponding; Back-moving spring 12 is housed on the cylinder post 11; Therefore back-moving spring 12 is between slide plate 4 and back-up block 10, and when slide plate 4 pressed home springs 12, cylindrical bar 11 stretches out two holes from slide plate 4 short brinks.
In basket 7 upper ends of tumbling top cover 1 is installed, bottom 9 is installed in the lower end.Top cover coupling bolt 2 is installed on the flange face of top cover 1.The top of described push rod 3 is positioned at top cover coupling bolt 2 belows, and with top cover coupling bolt 2 on same vertical direction.When the top cover 1 and the basket 7 of tumbling were connected completion through top cover coupling bolt 2 after, top cover coupling bolt 2 can contact the top of push rods 3, promoted push rod 3 simultaneously and moved downwards.
Fig. 3 has provided the synoptic diagram of slide plate, two hole A13 of its long side below processing, and Fig. 4 is the slide block synoptic diagram, porose B14 of processing and hole C15 on it, an end relative with B14 position, hole is processed with block face 16.Through hole C15, slide block 6 is hingedly mounted on the basket 7 of tumbling.And hole B14 and hole A13 are hinged, make that slide block 6 can be the center of circle with the hole A13 on the slide plate 4, does the circular motion (shrinking/open) of certain angle.
In order to make slide plate 4 under the drive of push rod 3, to move along vertical direction all the time, do not squint, on the basket 7 of tumbling, fix two briquettings 5, lay respectively at the both sides of slide plate 4, make slide plate 4 only can under the cross spacing of briquetting 5, move.
Equally, in the latter half of the basket 7 of tumbling identical interlocking device has been installed.
The bearing 18 of tumbling among tipple of the present invention and Fig. 5 is united use, is processed with U type mouth in the middle of this bearing 18 of tumbling, and a block 17 is respectively installed in both sides, and one jiao of block 17 is the inclined-plane.It matches with block face 16 on the slide block 6.
During use, the top cover 1 of dismantling earlier is again with the basket 7 of tumbling of packing into of damaged fuel assembly behind the irradiation; Top cover 1 is installed on the basket 7 of tumbling; Tighten top cover coupling bolt 2, top cover coupling bolt 2 contacts with push rod 3 and produces acting force; Top cover coupling bolt 2 promotes push rod 3 and moves downward; Push rod 3 links to each other with slide plate 4, is synchronized with the movement; Slide plate 4 motion under briquetting 5 restrictions, compression reseting spring 12 deformation; Slide plate 4 links to each other with slide block 6, and slide plate 4 motion is ordered about slide block 6 and shunk (inwardly doing the circular motion of certain angle), makes that the block face 16 on the slide block 6 breaks away from blocks 17 (as shown in Figure 6), this moment slide block 6 with the interlocking releasing of tumbling between the bearing block 17.
After confirming that interlocking is removed, damaged fuel assembly was tumbled after the basket 7 of tumbling carried irradiation; After safety and steady is tumbled and put in place, stop to tumble; Unclamp bottom coupling bolt 8, the bottom 9 of dismantling, bottom coupling bolt 8 separates no interaction force with push rod 3; Back-moving spring 12 recovery of elasticity deformation, and produce acting force between the slide plate 4; The acting force of back-moving spring 12 promotes slide plate 4 and is synchronized with the movement with push rod 3; Slide plate 4 orders about slide block 6 actions, open-shaped attitude (outwards doing the circular motion of certain angle), and the block face 16 on the slide block 6 contacts with block 17, and this moment, the slide block 6 and the generation interference between the bearing block 18 of tumbling formed interlocking (as shown in Figure 7), the basket 7 of can't tumbling.
Claims (4)
1. tipple with interlock; It comprises the basket of tumbling (7); The said basket of tumbling (7) upper end is fixed with top cover (1), and the lower end is fixed with bottom (9), it is characterized in that: described tumble basket about in the of 7 two parts be arranged with identical interlocking device respectively; Described interlocking device comprises a pair of slide block (6) that is hinged on basket 7 middle parts of tumbling, and this slide block (6) top is provided with slide plate (4), and this slide plate (4) is hinged with slide block (6); Described slide plate (4) is the L type, and its short brink is provided with two circular holes, and is fixed with push rod (3) on slide plate (4) short brink; On the basket of tumbling (7), be fixed with back-up block (10); Be fixed with cylindrical bar (11) on the back-up block (10); And cylindrical bar (11) is corresponding with the circular hole position on slide plate (4) short brink; Back-moving spring (12) is housed on the described cylindrical bar (11), and this back-moving spring position (12) is between the short brink and back-up block (10) of slide plate (4).
2. the tipple with interlock as claimed in claim 1 is characterized in that: be fixed with two briquettings (5) on the described basket of tumbling (7), this briquetting (5) lays respectively at the both sides of slide plate (4).
3. the tipple with interlock as claimed in claim 1; It is characterized in that: the described basket of tumbling (7) upper end is connected through flange with top cover (1); The lower end is connected through flange with bottom (9); On the flange face of top cover (1) and bottom (9), be respectively equipped with top cover coupling bolt (2) and bottom coupling bolt (8), and both are positioned on the same vertical direction with push rod (3) all.
4. like claim 1 or 2 or 3 described tipples with interlock; It is characterized in that: described slide plate (4) long side lower end is provided with hole A (13); Said slide block (6) is provided with hole B (14) and hole C (15); And be provided with block face (16) with the relative end in hole B (14) position, (140 is hinged with hole A (13) through hole B for slide plate (4) and slide block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309765XA CN102543230A (en) | 2011-10-13 | 2011-10-13 | Tipping device with interlocking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309765XA CN102543230A (en) | 2011-10-13 | 2011-10-13 | Tipping device with interlocking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102543230A true CN102543230A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110309765XA Pending CN102543230A (en) | 2011-10-13 | 2011-10-13 | Tipping device with interlocking function |
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| CN (1) | CN102543230A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003149382A (en) * | 2001-11-15 | 2003-05-21 | Mitsubishi Heavy Ind Ltd | Rectangular pipe and basket for storing spent fuel assembly, and radioactive substance storing vessel |
| CN201717013U (en) * | 2010-06-30 | 2011-01-19 | 上海核工程研究设计院 | Fuel basket tipping device |
| CN102097140A (en) * | 2009-12-11 | 2011-06-15 | 上海核工程研究设计院 | Underwater fuel conveying trolley and tipping-over device for pressurized water reactor |
| CN202307169U (en) * | 2011-10-13 | 2012-07-04 | 秦山核电有限公司 | Tipping device with interlocking function |
-
2011
- 2011-10-13 CN CN201110309765XA patent/CN102543230A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003149382A (en) * | 2001-11-15 | 2003-05-21 | Mitsubishi Heavy Ind Ltd | Rectangular pipe and basket for storing spent fuel assembly, and radioactive substance storing vessel |
| CN102097140A (en) * | 2009-12-11 | 2011-06-15 | 上海核工程研究设计院 | Underwater fuel conveying trolley and tipping-over device for pressurized water reactor |
| CN201717013U (en) * | 2010-06-30 | 2011-01-19 | 上海核工程研究设计院 | Fuel basket tipping device |
| CN202307169U (en) * | 2011-10-13 | 2012-07-04 | 秦山核电有限公司 | Tipping device with interlocking function |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20120704 |