CN103559923B - The keel operation tool of nuclear fuel assembly reparation use - Google Patents
The keel operation tool of nuclear fuel assembly reparation use Download PDFInfo
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- CN103559923B CN103559923B CN201310547931.9A CN201310547931A CN103559923B CN 103559923 B CN103559923 B CN 103559923B CN 201310547931 A CN201310547931 A CN 201310547931A CN 103559923 B CN103559923 B CN 103559923B
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- keel
- handgrip
- operation tool
- sliding shoe
- sleeve
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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 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 multiple 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, in the time that sliding shoe contacts with flat part, described handgrip is connected with keel, in the time that sliding shoe contacts with rake, described handgrip and keel are separated. in this keel operation tool, moving up and down of sliding shoe drives handgrip to open or closure, and then realize being connected or separation of handgrip and keel, it has been avoided in prior art because swollen head is replied not in time or the risk causing that ruptures, improve the reliability that operation tool is connected with keel, guaranteed carrying out smoothly of fuel assembly repair.
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 pad of nuclear fuel assembly reparation useHigh block operations instrument.
Background technology
Fuel rod clad is the ground floor safety curtain of protection nuclear safety. In the running of nuclear power station, fuel assembly is owing to being subject toTo multiple effects such as high temperature, high pressure, water impact, vibration, foreign matter shocks, fuel rod clad just likely occurs damaged, entersAnd cause leaking of radioactive substance. So, have very much and need to repair in time damaged fuel assembly. Meanwhile, due toExisting 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 at Spent Fuel Pool screen work or in fresh fuel lifting basket (for quadra)In carry out; In addition, in repair process, be convenient to on the dismounting of base carry out underwater video monitoring, need in advance in weary combustionExpect pond screen work or place keel in fresh fuel lifting basket, thereby making fuel assembly top screen work to be repaired be exposed at spentnuclear fuelThe horn mouth top of pond screen work or fresh fuel lifting basket.
Place keel in Spent Fuel Pool screen work or fresh fuel lifting basket time, need to use keel operation tool, this workThat tool need meet is safe, reliable, simple to operate, be easy to the features such as processing, but existing keel operation tool exists following defect:
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 in use, elastic expansion head easily occurs to reply not in time, breakThe fault such as split, operation tool is connected unreliable with keel, affect the repair of fuel assembly;
3, operation tool adopts Welding Structure, and in its manufacture process, welding deformation easily occurs the framework of instrument, and then is difficult to protectCard assembly precision; Meanwhile, the weld seam of instrument is easy corrosion cracking in high radioactivity boric acid environment, reduces the safety of operation toolReliability;
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 operation under water, therefore promoteOr this operation tool that lands is relatively required great effort;
5, stopping means without spin between operation tool and keel, thus promote or the process of landing operation tool in, keelEasily misplace, after long-term use, easily cause the connector 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 in view of the above, the object of the present invention is to provide a kind of guarantee operation tool and keel reliableThe keel operation tool of the nuclear fuel assembly reparation use connecting.
For achieving the above object, the invention provides a kind of keel operation tool of nuclear fuel assembly reparation use, comprise frame assemblyWith the lifting assembly being located on frame assembly upper surface, also comprise that one is fixed on the handgrip sleeve on frame assembly lower surface, described inIn handgrip sleeve, offer a passage, be provided with a sliding shoe moving up and down in this passage, the periphery of described handgrip sleeve is also openedBe provided with multiple equally distributed tanks, in each tank, be equipped with the rotatable and handgrip that matches with keel, described in grabThe inwall of hand comprises rake and flat part from top to bottom successively, in the time that sliding shoe contacts with flat part, and described handgrip and paddedPiece is connected; In the time that sliding shoe contacts with rake, described handgrip and keel are separated.
Further, described frame assembly comprises the upper flat plate and the lower flat board that are connected by support column, described handgrip sleeve with underFlat board is fixedly connected with.
Preferably, on described upper flat plate and lower flat board, all offer multiple osculums.
Further, the cylinder that also comprises and be fixedly connected with between upper flat plate and lower flat board and with lower flat board, this cylinderPiston rod is connected with sliding shoe.
Preferably, be provided with a fairlead between the cylinder body of described cylinder and upper flat plate, the piston rod upper end of described cylinder is fixed with oneSupporting disk, is provided with a spring in compressive state all the time between this supporting disk and upper flat plate, described supporting disk, spring are all positioned atIn fairlead.
Further, also comprise a spring lead, described spring lead comprises connecting portion and guide part from top to bottom successively,Described connecting portion is connected with described lifting assembly through after upper flat plate, and described guide part stretches into downwards in spring.
Preferably, described lifting assembly comprises the suspension ring bar and the connecting rod that removably connect, and the upper end of described suspension ring bar is provided with one and hangsRing.
Preferably, described lower flat board is provided with the alignment pin that two diagonal angles distribute, and the upper surface of described keel is provided with and locatesThe dowel hole that pin matches.
Further, the lower end of described handgrip outer wall is provided with a lug boss, is provided with a lock sleeve, in this lock sleeve in keelWall is provided with cannelure, and when described handgrip is connected with keel, handgrip sleeve is positioned at lock sleeve, and the lug boss of handgrip outer wallBe positioned at the cannelure 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 realizes handgrip and keelConnection or separation, it has avoided in prior art, because of the risk that swollen head is replied not in time or fracture causes, having improved operative employeeThe reliability that tool is connected with keel, guarantees carrying out smoothly of fuel assembly repair.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the cutaway 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 rods
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 fairleads
11 supporting disks
12 springs
13 spring leads
131 connecting portions
132 guide parts
133 hexagon boss
14 alignment pins
141 tapered portion
Detailed description of the invention
By particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can be taken off by this description belowThe content of revealing is understood other advantages of the present invention and effect easily.
Notice, appended graphic the illustrated structure of this description, ratio, size etc., all only in order to coordinate description to discloseContent, understands and reads for person skilled in the art scholar, not in order to limit the enforceable qualifications of the present invention, therefore tool notTechnical essential meaning, the adjustment of the modification of any structure, the change of proportionate relationship or size, is not affecting institute of the present invention energyUnder the effect producing and the object that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Meanwhile, in this description, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease ofUnderstanding of narration, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, changing without essenceUnder 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 HeBe 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, offerOne passage 31, is provided with a sliding shoe 4 moving up and down in this passage 31, the periphery of described handgrip sleeve 3 also offers multipleEqually distributed tank 32, described tank 32 is connected with passage 31, in each tank 32, be equipped with one rotatable and withThe handgrip 5 that keel 6 matches, the inwall of described handgrip 5 comprises rake 51 and flat part 52 from top to bottom successively, works as cunningWhen motion block 4 contacts with flat part 52, described handgrip 5 is connected with keel 6; When sliding shoe 4 and rake 51 joinWhile touching, 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, the outer wall by sliding shoe 4 and grabbingRake 51 or the flat part 52 of hand 5 inwalls contact, and realize being connected or separation of this operation tool and keel 6, and it hasEffect has been avoided in prior art because of the risk that swollen head is replied not in time or fracture causes, and has improved operation tool and keel 6 evenThe reliability connecing, guarantees carrying out smoothly of fuel assembly repair. Specifically, see Fig. 3 and Fig. 4, described handgrip 5 outer wallsLower end be provided with a lug boss 53, in described keel 6, be provided with a lock sleeve 61, the inwall of this lock sleeve 61 is provided with annularGroove; The upper end of the rake 51 of described handgrip 5 inwalls slopes inwardly, therefore in the time that handgrip 5 is connected with keel 6, handgrip sleeve3 stretch in lock sleeve 61, and sliding shoe 4 moves down and contacts with the flat part 52 of handgrip 5 inwalls, now handgrip 5For open configuration, the lug boss 53 of handgrip 5 outer walls is positioned at the cannelure of lock sleeve 61 inwalls, thus by operation tool withThe connection of keel 6; In the time that handgrip 5 and keel 6 disconnect, sliding shoe 4 moves up and with handgrip 5 inwallsRake 51 contacts, and now handgrip 5 is closure state, the lug boss 53 of handgrip 5 outer walls inwardly retract, from keelShifting out in the cannelure of 6 lock sleeves 61, thereby 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 handgrip 5Rotating shaft, the rotating fulcrum of handgrip 5 is between the rake 51 and flat part 52 of handgrip 5 inwalls. In addition, described cunningThe outer wall of motion block 4 is provided with outwards outstanding trigger unit 41, sees Fig. 4, and this trigger unit 41 is that line contacts with handgrip 5 inwalls, fromMove up and down the resistance in process and reduce sliding shoe 4, ensure that handgrip 5 opens smoothly or closure, also reduce for driving simultaneouslyThe load of the driving mechanism that sliding shoe 4 moves up and down.
Further, see Fig. 1 and Fig. 2, described frame assembly 1 comprises upper flat plate 102 Hes that are connected by support column 101Lower dull and stereotyped 103, described support column 101 with upper flat plate 102, support column 101 with lower dull and stereotyped 103 all by the fixing companies of nut 104Connect, and the middle part of support column 101 cut plane 107, be convenient to spanner and tighten installation, described handgrip sleeve 3 is with lower dull and stereotyped 103Be fixedly connected with by screw 8. Described frame assembly 1 is a square structure, is conducive to operation tool in Spent Fuel Pool lattice or combustionLocation in material lifting basket; Meanwhile, on described upper flat plate 102 and lower dull and stereotyped 103, all offer multiple osculums 105, to subtractWhen few operation tool promotes or lands in water, the resistance of water to operation tool. Described lifting assembly 2 comprises mutually and detachably connectingThe suspension ring bar 21 connecing and connecting rod 22, the upper end of described suspension ring bar 21 is provided with suspension ring 23, by rope being located in to this suspension ringIn 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 in hangRing bar 21 with connecting rod 22 for being threaded; In the time that there is the long rigidity straight-bar of 5-10 rice at scene, by suspension ring bar 21 with connectThe quick connection that removably connects to realize connecting rod 22 and rigidity straight-bar of extension bar 22, promotes or lands with rigidity straight-barKeel operation tool, 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 fixingThe cylinder 9 connecting, 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, lives itStopper rod 91 moves up and down, and then drives the moving up and down of sliding shoe 4, and realizes being connected or separation of operation tool and keel 6,Be the power source of cylinder 9 for driving sliding shoe 4 to move, certainly, described cylinder 9 is also replaceable is other driving machines such as hydraulic cylinderStructure. 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 a fairlead 10, described cylinder 9Piston rod 91 upper ends are fixed with a supporting disk 11, and preferably, supporting disk 11 is fixed on the upper of piston rod 91 by a screw 8End, is provided with a spring 12 in compressive state all the time between described supporting disk 11 and upper flat plate 102, described supporting disk 11,Spring 12 is all positioned at fairlead 10; Spring 12, all the time in compressive state, ensures 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, meet " fault-safety "Principle.
Further, as shown in Figure 2, also comprise a spring lead 13, described spring lead 13 from top to bottom wraps successivelyDraw together connecting portion 131 and guide part 132, 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 131Stretch in connecting rod 22 through after upper flat plate 102, and be threaded with connecting rod 22, in the present embodiment, spring lead 13Except plaing a part guiding, it also works to connect lifting assembly 2, and then the overall structure of this operation tool is more stepped upGather. In addition, the installation for the ease of spring lead 13 with connecting rod 22 offers a patchhole 221 on connecting rod 22,Die nut can insert from this patchhole 221, and then convenient installation; Meanwhile, in described connecting rod 22, crossed a locking screwSilk 24, this lock screw 24 leans with the upper end of the connecting portion 131 of spring lead 13, plays locking effect, ensures to connectBar 22 is fastenedly connected with spring lead 13. Meanwhile, in order to prevent that spring lead 13 from rotating, at spring lead13 are provided with a hexagon boss 133, are provided with a hexagon matching with hexagon boss 133 heavy in described upper flat plate 102Hole 106.
Preferably, see Fig. 2 and Fig. 3, described lower dull and stereotyped 103 are provided with the alignment pin 14 that two diagonal angles distribute, described keel6 upper surface is provided with the dowel hole 62 matching with alignment pin 14, and preferably, described dowel hole 62 has four, sideJust alignment pin 14 inserts dowel hole 62 from multiple directions. By matching of alignment pin 14 and dowel hole 62, can preventOnly, in the process of lifting or landing operation tool and keel 6, there is relative rotation in operation tool and keel 6, has avoidedOperation tool or keel are stuck in spentnuclear fuel screen work or fresh fuel lifting basket, have improved the reliability of its use. Meanwhile, forAlignment pin 14 can be inserted in dowel hole 62 smoothly, the lower end of described alignment pin 14 is a tapered portion 141, as Fig. 2Shown in.
This operation tool in use, is first placed in operation tool the top of keel 6, and the handgrip 5 in operation tool is closedState, the trigger unit 41 of sliding shoe 4 peripheries leans with the rake 51 of handgrip 5; The alignment pin 14 of operation tool insertsIn the dowel hole 62 of keel 6, the handgrip sleeve 3 of operation tool stretches in the lock sleeve 61 of keel 6; Cylinder 9 is movingDo, the piston rod 91 of cylinder 9 drives sliding shoe 4 to move down, and makes the trigger unit 41 of sliding shoe 4 peripheries and the flat part of handgrip 552 lean, and make handgrip 5 in open configuration, the lug boss 53 of handgrip 5 outer walls are inserted to the ring of keel 6 lock sleeves 61In shape groove, realize being connected of operation tool and keel 6; By rope, operation tool being communicated with to keel 6 again puts into weary togetherThe bottom of fuel pit lattice or fresh fuel lifting basket; Cylinder 9 moves again, and 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, by handgripThe lug boss 53 of 5 outer walls shifts out from the cannelure of keel 6 lock sleeves 61, then by rope, operation tool is carried from waterRise and shift out, can carry out afterwards the repair of fuel assembly. After fuel assembly reparation completes, then according to above-mentioned steps by paddedPiece 6 takes 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 alignment pin 14 sizes are larger, and the position error of permission is larger, convenient operation instrument and keel 6Centering;
2, adopt pneumatic gripping device 5 structures, being connected or disconnecting and rely on opening or closure of handgrip 5 of operation tool and keel 6Realization, has solved the problem that in prior art, swollen head is replied not in time, easily ruptured because of reason generations such as materials, cylinder 9 simultaneouslyAlso can ensure with the double action of spring 12 reliability being connected;
3, the use of alignment pin 14 prevent promote or landing process in the relative rotation of operation tool and keel 6, avoidedOperation tool or keel are stuck in spentnuclear fuel screen work or fresh fuel lifting basket, have improved the reliability of its use;
4, operation tool is with bolts, avoids adopting Welding Structure, has solved the assembly precision causing because of welding deformation poor etc.Problem;
5, the upper flat plate 102 of operation tool framework and lower dull and stereotyped 103 all has osculum 105, reduces device own wt, withTime reduced the resistance of water in operating process, rapid operation, has reduced labour intensity;
6,131 points of employing suspension ring 23 structures of operation tool and rope connecting portion, are conducive to instrument appearance in lifting or landing processThe adjustment of state;
7, use safety, connect reliable, handling ease, easy and simple to handle laborsaving, can well serve nuclear power plant's burst slug groupThe reparation of part.
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. Anyly be familiar with this skillThe personage of art all can, under spirit of the present invention and category, modify or change above-described embodiment. Therefore, such asUnder have in technical field conventionally know the knowledgeable do not depart under disclosed spirit and technological thought, complete all etc.Effect is modified or is changed, and must be contained by claim of the present invention.
Claims (7)
1. a keel operation tool for nuclear fuel assembly reparation use, comprises frame assembly (1) and is located at frame assembly (1) upper endLifting assembly (2) on face, is characterized in that: described frame assembly (1) is square structure, also comprises that one is fixed on frameHandgrip sleeve (3) on frame component (1) lower surface, offers a passage (31) in described handgrip sleeve (3), this is logicalIn road (31), be provided with a sliding shoe moving up and down (4), the periphery of described handgrip sleeve (3) also offers multiple equalThe tank (32) of even distribution, is equipped with one rotatably and the handgrip matching with keel (6) in each tank (32)(5), the inwall of described handgrip (5) comprises rake (51) and flat part (52), described sliding shoe from top to bottom successively(4) outer wall is provided with outwards outstanding trigger unit (41), and this trigger unit (41) is that line connects with the inwall of handgrip (5)Touch, in the time that the trigger unit (41) of sliding shoe (4) contacts with flat part (52), described handgrip (5) and keel (6)Be connected; In the time that the trigger unit (41) of sliding shoe (4) contacts with rake (51), described handgrip (5) is with paddedPiece (6) is separated; Described frame assembly (1) comprise the upper flat plate (102) that is connected by support column (101) and underDull and stereotyped (103), described handgrip sleeve (3) is fixedly connected with lower flat board (103), and described lower flat board (103) is provided withAlignment pins (14) that two diagonal angles distribute, the upper surface of described keel (6) is provided with matches with alignment pin (14)Dowel hole (62).
2. keel operation tool according to claim 1, is characterized in that: described upper flat plate (102) and lower flat board (103)On all offer multiple osculums (105).
3. keel operation tool according to claim 1, is characterized in that: also comprise one be positioned at upper flat plate (102) and underBetween dull and stereotyped (103) and the cylinder (9) being fixedly connected with lower flat board (103), the piston rod (91) of this cylinder (9)Be connected with sliding shoe (4).
4. keel operation tool according to claim 3, is characterized in that: the cylinder body of described cylinder (9) and upper flat plate (102)Between be provided with a fairlead (10), piston rod (91) upper end of described cylinder (9) is fixed with a supporting disk (11), shouldBetween 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) is all positioned at fairlead (10).
5. keel operation tool according to claim 4, is characterized in that: also comprise a spring lead (13), described inSpring lead (13) comprises connecting portion (131) and guide part (132), described connecting portion (131) from top to bottom successivelyBe connected with described lifting assembly (2) through after upper flat plate (102), described guide part (132) stretches into spring (12) downwardsIn.
6. keel operation tool according to claim 1 or 5, is characterized in that: described lifting assembly (2) comprises removableThe suspension ring bar (21) and the connecting rod (22) that unload connection, the upper end of described suspension ring bar (21) is provided with suspension ring (23).
7. keel operation tool according to claim 1, is characterized in that: the lower end of described handgrip (5) outer wall is provided with oneLug boss (53), is provided with a lock sleeve (61) in keel (6), the inwall of this lock sleeve (61) is provided with cannelure,When described handgrip (5) is connected with keel (6), handgrip sleeve (3) is positioned at lock sleeve (61), and handgrip (5)The lug boss (53) of outer wall is positioned at the cannelure 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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| 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 CN103559923A (en) | 2014-02-05 |
| CN103559923B true CN103559923B (en) | 2016-05-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106128531B (en) * | 2016-07-05 | 2017-10-27 | 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 |
| 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 |
| CN112091871B (en) * | 2020-08-27 | 2021-12-14 | 清华大学 | Disassembling tool |
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| CN101090008A (en) * | 2006-06-16 | 2007-12-19 | 秦山核电公司 | Burst slug assembly repair technology after irridiation and its special equipment |
| CN102208221A (en) * | 2011-03-31 | 2011-10-05 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101090008A (en) * | 2006-06-16 | 2007-12-19 | 秦山核电公司 | Burst slug assembly repair technology after irridiation and its special equipment |
| CN102208221A (en) * | 2011-03-31 | 2011-10-05 | 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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