CN103559923A - Padding block operation tool for repairing nuclear fuel assembly - Google Patents
Padding block operation tool for repairing nuclear fuel assembly Download PDFInfo
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- CN103559923A CN103559923A CN201310547931.9A CN201310547931A CN103559923A CN 103559923 A CN103559923 A CN 103559923A CN 201310547931 A CN201310547931 A CN 201310547931A CN 103559923 A CN103559923 A CN 103559923A
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- keel
- operation tool
- handgrip
- sleeve
- assembly
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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 provides a padding block operation tool for repairing a nuclear fuel assembly. The padding block operation tool comprises a framework assembly and a hoisting assembly arranged on the upper end face of the framework assembly, and further comprises a grabbing handle sleeve which is fixedly arranged on the lower end face of the framework assembly; the grabbing handle sleeve is provided with a channel and the channel is provided with a sliding block capable of moving up and down; a plurality of uniformly-distributed containing grooves are formed in the periphery of the grabbing handle sleeve; each containing groove is internally provided with a grabbing handle which is rotatable and is matched with a padding block; the inner wall of each grabbing handle comprises an inclined part and a straight part in sequence from top to bottom; when the sliding block is contacted with the straight parts, the grabbing handles are connected with the padding block; when the sliding block is contacted with the inclined parts, the grabbing handles are separated from the padding block. According to the padding block operation tool, the sliding block is moved up and down to drive the grabbing handles to be opened and closed so as to realize the connection and the separation of the grabbing handles and the padding block; the risk in the prior art caused by the fact that an expanding head is not returned in time or is cracked is avoided; the reliability of connecting the operation tool with the padding block is improved; the smooth proceeding of the repairing work of the nuclear fuel assembly is ensured.
Description
Technical field
The present invention relates to the servicing unit of a kind of nuclear power plant fuel reparation use, particularly relate to a kind of keel operation tool of nuclear fuel assembly reparation use.
Background technology
Fuel rod clad is the ground floor safety curtain of protection nuclear safety.In the operational process of nuclear power station, fuel assembly is owing to being subject to the multiple effects such as high temperature, high pressure, water impact, vibration, foreign matter shock, and fuel rod clad just likely occurs damaged, and then causes leaking of radiomaterial.So, have very much and need to repair in time damaged fuel assembly.Meanwhile, because existing fuel assembly adopts removable top nozzle design, therefore make the replacing of burst slug rod become possibility.
At present, the repair of fuel assembly is generally to carry out at Spent Fuel Pool screen work or in fresh fuel lifting basket (for quadra); In addition, for in repair process, be convenient to on the dismounting of base carry out underwater video monitoring, need at Spent Fuel Pool screen work or in fresh fuel lifting basket, to place keel in advance, thereby make fuel assembly top screen work to be repaired be exposed at the hydraucone top of Spent Fuel Pool screen work or fresh fuel lifting basket.
When placing keel in Spent Fuel Pool screen work or fresh fuel lifting basket, need to use keel operation tool, that this instrument need meet is safe, reliable, simple to operate, be easy to the features such as processing, but there is following defect in existing keel operation tool:
1, the backstay of operation tool is meticulous, when above the water surface, eminence operates, and the centering that is difficult to realize operation tool and keel;
2, the grasping mechanism of operation tool is elastic expansion head, and the faults such as in use, elastic expansion head easily occurs to reply not in time, fracture, make operation tool be connected with keel unreliable, affect the repair of fuel assembly;
3, operation tool adopts welded structure, and in its manufacture process, welding deformation easily occurs the framework of instrument, and then is difficult to guarantee assembly precision; Meanwhile, the weld seam of instrument is easy corrosion cracking in high radioactivity boric acid environment, reduces the safe reliability of operation tool;
4, the upper and lower surface of the framework of operation tool is all used stainless-steel sheet, is subject to the resistance of water while operating under water, therefore lifting or this operation tool that lands are relatively required great effort;
5, stop means without spin between operation tool and keel, thus promote or the process of landing operation tool in, keel easily misplaces, and after long-term use, easily causes the web member that is positioned at keel and operation tool cooperation place to rupture;
6, operation tool uses semicircular handle, is unfavorable for the inching of operation tool attitude in lifting or landing process.
Summary of the invention
The shortcoming of prior art, the object of the present invention is to provide a kind of keel operation tool that guarantees the nuclear fuel assembly reparation use that operation tool is reliably connected with keel in view of the above.
For achieving the above object, the invention provides a kind of keel operation tool of nuclear fuel assembly reparation use, comprise frame assembly and be located at the lifting assembly on frame assembly upper surface, also comprise that one is fixed on the handgrip sleeve on frame assembly lower surface, in described handgrip sleeve, offer a passage, in this passage, be provided with a sliding shoe moving up and down, the periphery of described handgrip sleeve also offers a plurality of equally distributed tanks, in each tank, be equipped with one rotatable, and the handgrip matching with keel, the inwall of described handgrip comprises rake and flat part from top to bottom successively, when sliding shoe contacts with flat part, described handgrip is connected with keel, when sliding shoe contacts with rake, described handgrip and keel are separated.
Further, described frame assembly comprises upper flat plate and the lower flat board being connected by support column, and described handgrip sleeve is fixedly connected with lower flat board.
Preferably, on described upper flat plate and lower flat board, all offer a plurality of osculums.
Further, also comprise one between upper flat plate and lower flat board and the cylinder being fixedly connected with lower flat board, the piston rod of this cylinder is connected with sliding shoe.
Preferably, between the cylinder body of described cylinder and upper flat plate, be provided with an orienting sleeve, the piston rod upper end of described cylinder is fixed with a supporting disk, is provided with a spring in compressive state all the time between this supporting disk and upper flat plate, and described supporting disk, spring are all positioned at orienting sleeve.
Further, also comprise a spring guidepost, described spring guidepost comprises connecting portion and guide part from top to bottom successively, and described connecting portion is connected with described lifting assembly through after upper flat plate, and described guide part stretches in spring downwards.
Preferably, described lifting assembly comprises suspension ring bar and the connecting link removably connecting, and the upper end of described suspension ring bar is provided with suspension ring.
Preferably, described lower flat board is provided with the register pin that two diagonal angles distribute, and the upper surface of described keel is provided with the dowel hole matching with register pin.
Further, the lower end of described handgrip outer wall is provided with a lug boss, is provided with a lock sleeve in keel, the inwall of this lock sleeve is provided with ring groove, when described handgrip is connected with keel, handgrip sleeve is positioned at lock sleeve, and the boss of handgrip outer wall is in the ring groove of lock sleeve inwall.
As mentioned above, the keel operation tool of the nuclear fuel assembly reparation use the present invention relates to, has following beneficial effect:
In this keel operation tool, moving up and down of sliding shoe drives handgrip to open or closure, and then realize handgrip and keel be connected or separated, it has avoided the risk of replying not in time or rupturing and cause because of swollen head in prior art, improve the reliability that operation tool is connected with keel, guaranteed carrying out smoothly of fuel assembly repair.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the cut-open view of Fig. 1.
Fig. 3 is the structural representation of keel in the present invention.
Fig. 4 is the connection diagram of handgrip and sliding shoe in the present invention.
Element numbers explanation
1 frame assembly
101 support columns
102 upper flat plates
103 times flat boards
104 nuts
105 osculums
106 hexagon counterbores
107 planes
2 lifting assemblies
21 suspension ring bars
22 connecting links
221 patchholes
23 suspension ring
24 lock screws
3 handgrip sleeves
31 passages
32 tanks
4 sliding shoes
41 trigger units
5 handgrips
51 rakes
52 flat parts
53 lug bosses
6 keels
61 lock sleeves
62 dowel holes
7 pins
8 screws
9 cylinders
91 piston rods
10 orienting sleeves
11 supporting disks
12 springs
13 spring guideposts
131 connecting portions
132 guide parts
133 hexagon boss
14 register pins
141 tapered portion
Embodiment
By particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this instructions below.
Notice, appended graphic the illustrated structure of this instructions, ratio, size etc., equal contents in order to coordinate instructions to disclose only, for person skilled in the art scholar, understand and read, not in order to limit the enforceable qualifications of the present invention, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under the effect that the present invention can produce and the object that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this instructions, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under without essence change technology contents, when being also considered as the enforceable category of the present invention.
As shown in Figure 1, the invention provides a kind of keel operation tool of nuclear fuel assembly reparation use, comprise frame assembly 1 and be located at the lifting assembly 2 on frame assembly 1 upper surface, this lifting assembly 2 is for promoting or this keel operation tool that lands, also comprise that one is fixed on the handgrip sleeve 3 on frame assembly 1 lower surface, see Fig. 2 to Fig. 4, in described handgrip sleeve 3, offer a passage 31, in this passage 31, be provided with a sliding shoe 4 moving up and down, the periphery of described handgrip sleeve 3 also offers a plurality of equally distributed tanks 32, described tank 32 is connected with passage 31, in each tank 32, be equipped with one rotatable, and the handgrip 5 matching with keel 6, the inwall of described handgrip 5 comprises rake 51 and flat part 52 from top to bottom successively, when sliding shoe 4 contacts with flat part 52, described handgrip 5 is connected with keel 6, when sliding shoe 4 contacts with rake 51, described handgrip 5 is separated with keel 6.
In this keel operation tool, sliding shoe 4 can move up and down in handgrip sleeve 3, by the outer wall of sliding shoe 4 and rake 51 or the flat part 52 of handgrip 5 inwalls, contact, realize this operation tool and keel 6 be connected or separated, it has effectively avoided the risk of replying not in time or rupturing and cause because of swollen head in prior art, improve operation tool and the reliability that keel 6 is connected, guaranteed carrying out smoothly of fuel assembly repair.Specifically, see Fig. 3 and Fig. 4, the lower end of described handgrip 5 outer walls is provided with a lug boss 53, is provided with a lock sleeve 61 in described keel 6, and the inwall of this lock sleeve 61 is provided with ring groove; The upper end of the rake 51 of described handgrip 5 inwalls slopes inwardly, therefore when handgrip 5 is connected with keel 6, handgrip sleeve 3 stretches in lock sleeve 61, sliding shoe 4 moves down and contacts with the flat part 52 of handgrip 5 inwalls, now handgrip 5 is open configuration, be the ring groove that the lug boss 53 of handgrip 5 outer walls is positioned at lock sleeve 61 inwalls, thus being connected operation tool and keel 6; When handgrip 5 and keel 6 disconnect, sliding shoe 4 moves up and contacts with the rake 51 of handgrip 5 inwalls, now handgrip 5 is closure state, the lug boss 53 that is handgrip 5 outer walls is inwardly retracted, shifting out from the ring groove of keel 6 lock sleeves 61, thus disconnecting operation tool and keel 6.
In the present embodiment, described handgrip 5 is arranged on handgrip sleeve 3 by pin 7 is rotating, and this pin 7 is the turning axle of handgrip 5, and the rotating fulcrum of handgrip 5 is between the rake 51 and flat part 52 of handgrip 5 inwalls.In addition, the outer wall of described sliding shoe 4 is provided with outwards outstanding trigger unit 41, see Fig. 4, this trigger unit 41 is that line contacts with handgrip 5 inwalls, thereby reduce sliding shoe 4 and move up and down the resistance in process, guarantee that handgrip 5 opens smoothly or closed, also reduce for driving the load of the driving mechanism that sliding shoe 4 moves up and down simultaneously.
Further, see Fig. 1 and Fig. 2, described frame assembly 1 comprises the upper flat plate 102 and lower dull and stereotyped 103 being connected by support column 101, described support column 101 is all fixedly connected with by nut 104 with lower dull and stereotyped 103 with upper flat plate 102, support column 101, and plane 107 has been cut at the middle part of support column 101, be convenient to spanner and tighten installation, described handgrip sleeve 3 is fixedly connected with by screw 8 with lower dull and stereotyped 103.Described frame assembly 1 is a square structure, is conducive to the location of operation tool in Spent Fuel Pool lattice or fuel lifting basket; Meanwhile, on described upper flat plate 102 and lower dull and stereotyped 103, all offer a plurality of osculums 105, when promoting in water or landing to reduce operation tool, the resistance of water to operation tool.Described lifting assembly 2 comprises suspension ring bar 21 and the connecting link 22 mutually removably connecting, the upper end of described suspension ring bar 21 is provided with suspension ring 23, by rope being located in these suspension ring 23, this keel operation tool that can promote or land, and can also make operation tool fine adjustment of attitude.In the present embodiment, described suspension ring bar 21 with connecting link 22 for being threaded; When there is the long rigidity straight-bar of 5-10 rice at scene, by suspension ring bar 21 and connecting link 22 removably connect realize connecting link 22 and be connected with the quick of rigidity straight-bar, with rigidity straight-bar, promote or the keel operation tool that lands, operation is very easy.
Further, see Fig. 2, also comprise one between upper flat plate 102 and lower dull and stereotyped 103 and with lower dull and stereotyped 103 cylinders that are fixedly connected with 9, the piston rod 91 of this cylinder 9 is threaded with sliding shoe 4; The ventilation of two ends up and down of cylinder 9, its piston rod 91 is moved up and down, and then drive moving up and down of sliding shoe 4, realize operation tool and keel 6 be connected or separated, be the power source of cylinder 9 for driving sliding shoe 4 to move, certainly, described cylinder 9 is also replaceable is other driving mechanisms such as hydraulic cylinder.Described cylinder 9, handgrip sleeve 3, handgrip 5, sliding shoe 4 have formed the pneumatic gripping device mechanism of operation tool.
Preferably, see Fig. 2, between the cylinder body of described cylinder 9 and upper flat plate 102, be provided with an orienting sleeve 10, piston rod 91 upper ends of described cylinder 9 are fixed with a supporting disk 11, preferably, supporting disk 11 is fixed on the upper end of piston rod 91 by a screw 8, be provided with a spring in compressive state 12 all the time between described supporting disk 11 and upper flat plate 102, and described supporting disk 11, spring 12 are all positioned at orienting sleeve 10; Spring 12, all the time in compressive state, guarantees in the situation that cylinder 9 loses source of the gas, still can make handgrip 5 reliably be connected with keel 6 lock sleeves 61, and there will not be reply phenomenon, meets " fault-safety " principle.
Further, as shown in Figure 2, also comprise a spring guidepost 13, described spring guidepost 13 comprises connecting portion 131 and guide part 132 from top to bottom successively, described connecting portion 131 is connected with described lifting assembly 2 through upper flat plate 102 is rear, described guide part 132 stretches into downwards in spring 12, for centering location and the flexible guiding of spring 12.Described connecting portion 131 stretches in connecting link 22 through after upper flat plate 102, and be threaded with connecting link 22, in the present embodiment, spring guidepost 13 is except plaing a part guiding, it also works to connect lifting assembly 2, and then makes the one-piece construction of this operation tool compacter.In addition, the installation for the ease of spring guidepost 13 with connecting link 22 offers a patchhole 221 on connecting link 22, and hex wrench can insert from this patchhole 221, and then convenient installation; Meanwhile, crossed a lock screw 24 in described connecting link 22, this lock screw 24 leans with the upper end of the connecting portion 131 of spring guidepost 13, plays locking effect, guarantees being fastenedly connected of connecting link 22 and spring guidepost 13.Meanwhile, in order to prevent that spring guidepost 13 from rotating, on spring guidepost 13, be provided with a hexagon boss 133, in described upper flat plate 102, be provided with a hexagon counterbore 106 matching with hexagon boss 133.
Preferably, see Fig. 2 and Fig. 3, described lower dull and stereotyped 103 are provided with the register pin 14 that two diagonal angles distribute, the upper surface of described keel 6 is provided with the dowel hole 62 matching with register pin 14, preferably, described dowel hole 62 has four, facilitates register pin 14 to insert dowel hole 62 from multiple directions.By matching of register pin 14 and dowel hole 62, can prevent in the process of lifting or landing operation tool and keel 6, there is relative rotation with keel 6 in operation tool, avoid operation tool or keel stuck in spentnuclear fuel screen work or fresh fuel lifting basket, improved the reliability of its use.Meanwhile, for register pin 14 can be inserted in dowel hole 62 smoothly, the lower end of described register pin 14 is a tapered portion 141, as shown in Figure 2.
This operation tool in use, is first placed in operation tool the top of keel 6, and the handgrip 5 in operation tool is closure state, and the trigger unit 41 of sliding shoe 4 peripheries leans with the rake 51 of handgrip 5; The register pin 14 of operation tool inserts in the dowel hole 62 of keel 6, and the handgrip sleeve 3 of operation tool stretches in the lock sleeve 61 of keel 6; Cylinder 9 actions, the piston rod 91 of cylinder 9 drives sliding shoe 4 to move down, the trigger unit 41 of sliding shoe 4 peripheries is leant with the flat part 52 of handgrip 5, make handgrip 5 in open configuration, the lug boss of handgrip 5 outer walls 53 is inserted in the ring groove of keel 6 lock sleeves 61, realize being connected of operation tool and keel 6; By rope, operation tool is communicated with to the bottom that keel 6 is put into Spent Fuel Pool lattice or fresh fuel lifting basket together again; Cylinder 9 moves again, the piston rod 91 of cylinder 9 drives on sliding shoe 4 and moves, the trigger unit 41 of sliding shoe 4 peripheries is leant with the rake 51 of handgrip 5, make handgrip 5 in closure state, the lug boss 53 of handgrip 5 outer walls is shifted out from the ring groove of keel 6 lock sleeves 61, by rope, operation tool is promoted and shifted out from water again, can carry out the repair of fuel assembly afterwards.After fuel assembly reparation completes, then according to above-mentioned steps, keel 6 is taken out from Spent Fuel Pool screen work or fresh fuel lifting basket.
In sum, the keel operation tool the present invention relates to has following beneficial effect:
1, handgrip sleeve 3 and register pin 14 sizes are larger, and the positioning error of permission is larger, the centering of convenient operation instrument and keel 6;
2, adopt pneumatic gripping device 5 structures, operation tool and keel 6 be connected or disconnect rely on handgrip 5 open or closure realizes, solved the problem that in prior art, swollen head is replied not in time, easily ruptured because of reason generations such as materials, the double action of cylinder 9 and spring 12 also can guarantee the reliability being connected simultaneously;
3, the use of register pin 14 prevent promote or landing process in the relative rotation of operation tool and keel 6, avoided operation tool or keel stuck in spentnuclear fuel screen work or fresh fuel lifting basket, improved the reliability of its use;
4, operation tool is with bolts, avoids adopting welded structure, has solved the problems such as the assembly precision causing because of welding deformation is poor;
5, the upper flat plate 102 of operation tool framework and lower dull and stereotyped 103 all has osculum 105, reduces device own wt, has reduced the resistance of water in operating process simultaneously, and rapid operation, has reduced labour intensity;
6, operation tool and rope connecting portion adopt suspension ring 23 structures in 131 minutes, are conducive to the adjustment of instrument attitude in lifting or landing process;
7, use safety, connect reliable, handling ease, easy and simple to handle laborsaving, can well serve the reparation of nuclear power plant's damaged fuel assembly.
So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (9)
1. the keel operation tool of a nuclear fuel assembly reparation use, comprise frame assembly (1) and be located at the lifting assembly (2) on frame assembly (1) upper surface, it is characterized in that: also comprise that one is fixed on the handgrip sleeve (3) on frame assembly (1) lower surface, in described handgrip sleeve (3), offer a passage (31), in this passage (31), be provided with a sliding shoe moving up and down (4), the periphery of described handgrip sleeve (3) also offers a plurality of equally distributed tanks (32), in each tank (32), be equipped with one rotatable, and the handgrip (5) matching with keel (6), the inwall of described handgrip (5) comprises rake (51) and flat part (52) from top to bottom successively, when sliding shoe (4) contacts with flat part (52), described handgrip (5) is connected with keel (6), when sliding shoe (4) contacts with rake (51), described handgrip (5) is separated with keel (6).
2. keel operation tool according to claim 1, it is characterized in that: described frame assembly (1) comprises upper flat plate (102) and the lower flat board (103) being connected by support column (101), and described handgrip sleeve (3) is fixedly connected with lower flat board (103).
3. keel operation tool according to claim 2, is characterized in that: on described upper flat plate (102) and lower flat board (103), all offer a plurality of osculums (105).
4. keel operation tool according to claim 2, it is characterized in that: also comprise that one is positioned between upper flat plate (102) and lower flat board (103) and the cylinder (9) being fixedly connected with lower flat board (103), the piston rod (91) of this cylinder (9) is connected with sliding shoe (4).
5. keel operation tool according to claim 4, it is characterized in that: between the cylinder body of described cylinder (9) and upper flat plate (102), be provided with an orienting sleeve (10), piston rod (91) upper end of described cylinder (9) is fixed with a supporting disk (11), between this supporting disk (11) and upper flat plate (102), be provided with a spring in compressive state (12) all the time, described supporting disk (11), spring (12) are all positioned at orienting sleeve (10).
6. keel operation tool according to claim 5, it is characterized in that: also comprise a spring guidepost (13), described spring guidepost (13) comprises connecting portion (131) and guide part (132) from top to bottom successively, described connecting portion (131) is connected with described lifting assembly (2) through after upper flat plate (102), and described guide part (132) stretches into downwards in spring (12).
7. according to the keel operation tool described in claim 1 or 6, it is characterized in that: described lifting assembly (2) comprises suspension ring bar (21) and the connecting link (22) removably connecting, and the upper end of described suspension ring bar (21) is provided with suspension ring (23).
8. keel operation tool according to claim 2, it is characterized in that: described lower flat board (103) is provided with the register pin (14) that two diagonal angles distribute, and the upper surface of described keel (6) is provided with the dowel hole (62) matching with register pin (14).
9. keel operation tool according to claim 1, it is characterized in that: the lower end of described handgrip (5) outer wall is provided with a lug boss (53), in keel (6), be provided with a lock sleeve (61), the inwall of this lock sleeve (61) is provided with ring groove, when described handgrip (5) is connected with keel (6), handgrip sleeve (3) is positioned at lock sleeve (61), and the lug boss (53) of handgrip (5) outer wall is positioned at the ring groove of lock sleeve (61) inwall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310547931.9A CN103559923B (en) | 2013-11-06 | 2013-11-06 | The keel operation tool of nuclear fuel assembly reparation use |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310547931.9A CN103559923B (en) | 2013-11-06 | 2013-11-06 | The keel operation tool of nuclear fuel assembly reparation use |
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| CN103559923A true CN103559923A (en) | 2014-02-05 |
| CN103559923B CN103559923B (en) | 2016-05-04 |
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| CN201310547931.9A Active CN103559923B (en) | 2013-11-06 | 2013-11-06 | The keel operation tool of nuclear fuel assembly reparation use |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023623A (en) * | 2015-06-24 | 2015-11-04 | 中广核核电运营有限公司 | Nuclear fuel assembly repair device and method |
| CN106128531A (en) * | 2016-07-05 | 2016-11-16 | 中国核动力研究设计院 | A kind of assembly and disassembly methods of fuel assembly base under water |
| CN106910538A (en) * | 2017-03-30 | 2017-06-30 | 上海核工程研究设计院 | A kind of vertically-mounted PWR nuclear power plant fuel assembly crawl test instrument |
| CN110718311A (en) * | 2019-10-10 | 2020-01-21 | 中国科学院近代物理研究所 | A first mechanism is grabbed in reloading for lead-based reactor fuel assembly |
| CN112091871A (en) * | 2020-08-27 | 2020-12-18 | 清华大学 | Disassembling tool |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101090008B (en) * | 2006-06-16 | 2011-11-09 | 秦山核电有限公司 | Failed fuel assemblies repair technology after irradiation |
| CN102208221B (en) * | 2011-03-31 | 2013-06-05 | 清华大学 | Tank plug claw for nuclear power station spent fuel storage tank |
| CN202292750U (en) * | 2011-10-13 | 2012-07-04 | 国核电站运行服务技术有限公司 | Long-handle gripper |
| CN203617001U (en) * | 2013-11-06 | 2014-05-28 | 国核电站运行服务技术有限公司 | Block-up block operational tool for repairing nuclear fuel assembly |
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2013
- 2013-11-06 CN CN201310547931.9A patent/CN103559923B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023623A (en) * | 2015-06-24 | 2015-11-04 | 中广核核电运营有限公司 | Nuclear fuel assembly repair device and method |
| CN105023623B (en) * | 2015-06-24 | 2017-10-10 | 中广核核电运营有限公司 | Nuclear fuel assembly prosthetic device and method |
| CN106128531A (en) * | 2016-07-05 | 2016-11-16 | 中国核动力研究设计院 | A kind of assembly and disassembly methods of fuel assembly base under water |
| CN106910538A (en) * | 2017-03-30 | 2017-06-30 | 上海核工程研究设计院 | A kind of vertically-mounted PWR nuclear power plant fuel assembly crawl test instrument |
| CN110718311A (en) * | 2019-10-10 | 2020-01-21 | 中国科学院近代物理研究所 | A first mechanism is grabbed in reloading for lead-based reactor fuel assembly |
| CN110718311B (en) * | 2019-10-10 | 2020-07-07 | 中国科学院近代物理研究所 | A first mechanism is grabbed in reloading for lead-based reactor fuel assembly |
| CN112091871A (en) * | 2020-08-27 | 2020-12-18 | 清华大学 | Disassembling tool |
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| Publication number | Publication date |
|---|---|
| CN103559923B (en) | 2016-05-04 |
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