CN106448771A - Center graphite pillar replacing device of nuclear reactor - Google Patents
Center graphite pillar replacing device of nuclear reactor Download PDFInfo
- Publication number
- CN106448771A CN106448771A CN201611179172.5A CN201611179172A CN106448771A CN 106448771 A CN106448771 A CN 106448771A CN 201611179172 A CN201611179172 A CN 201611179172A CN 106448771 A CN106448771 A CN 106448771A
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- China
- Prior art keywords
- handgrip
- nuclear reactor
- gear
- platform
- main shaft
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/34—Apparatus or processes for dismantling nuclear fuel, e.g. before reprocessing ; Apparatus or processes for dismantling strings of spent fuel elements
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a center graphite pillar replacing device of nuclear reactor, comprising a lifting mechanism, a rotation driving mechanism and a grasp component mechanism which are linked to each other through a platform and an axial rod; the lifting mechanism drives the grasp component mechanism to vertically move, and the rotation driving mechanism drives the grasp component mechanism to rotate and move; a group of grasp corresponding to a grasp hole on the center graphite component is fixedly arranged on the main body of the grasp component mechanism. The replacing device can accurately position the grasp action through cooperation of rotation movement on horizontal direction and overall slow lifting movement, so as to conveniently replace the center graphite pillar of the reactor, and further fully use the nuclear reactor and prolong the overall service lie of the nuclear reactor.
Description
Technical field
The invention belongs to nuclear equipment technical field, especially relate to one kind for crawl center graphite column in nuclear reactor heap
Assembly such as carries out rotating, is lifted at being accurately positioned and grabbing device of displacement process.
Background technology
The service life of nuclear reactor about 60 years, and the service life of center graphite column only has 40 years about, therefore
It is accomplished by periodic replacement center graphite column to extend nuclear reactor whole service life, and at present in nuclear reactor center graphite
The design of post grasping mechanism, has the problems such as design is complicated, and manufacturing price is expensive, and the equipment requirements using in nuclear reactor
It is required for very high reliability and safety, for this reason, considering problem above and feature has carried out the structure design of the present invention.
Content of the invention
It is an object of the invention to provide a kind of safe and reliable machinery, its function is in graphite column Renewal process
In, can be accurately positioned and capture center graphite column by the slow velocity of displacement adjusting rotating driving device and elevating mechanism
It is ensured that it captures the safety of process, the present invention improves the bulk life time of nuclear reactor by more switching center9's graphite column to assembly.
In view of this, it is contemplated that proposing a kind of nuclear reactor center graphite column more changing device, anti-to be convenient for changing core
Answer the center graphite column of heap, and then so that the nuclear reactor heart is fully utilized, extend the bulk life time of nuclear reactor.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of nuclear reactor center graphite column more changing device, including:Elevating mechanism, by platform and the interconnection of shaft configurations phase
The rotary drive mechanism connecing and handgrip components mechanism, constitute overall, and elevating mechanism drives handgrip components mechanism vertically movable, rotation
Drive mechanism drives handgrip components mechanism rotary motion, in fixed and arranged You Yu center graphite components in handgrip components mechanism main body
One group of corresponding handgrip of crawl hole;
Further, elevating mechanism includes:Reductor, lifting motor and be fixed on the flat surface of circular platform close to middle part
The gear housing of position, elevating mechanism is driven by lifting motor, drives the first worm screw to rotate by driving gear and driven gear,
Pass through first worm-gear driven the first main axis again, the first main shaft is connected on the reductor at platform two ends, the first main shaft and snail
Wheel is located at box house, and reductor can be with the movement velocity of the whole driving mechanism of precise control and displacement, and reductor passes through transmission
Axle drive gear wheel linkage tooth bar scroll-up/down on being fixed on sleeve for the little gear, so that whole circular platform is perpendicular on sleeve
Straight motion;
Further, flat surface edge several slide blocks uniform, and slide block can slide on the line slideway on sleeve
For support platform;
Further, rotary drive mechanism is fixed on the center of platform, and rotary drive mechanism is driven by electric rotating machine, leads to
Cross second worm drive the second worm gear wheel, the second worm gear drives its second worm-wheel shaft to rotate, by first gear and the second tooth
Second main axis of wheel linkage rotation drive mechanism, the second main shaft of rotary drive mechanism passes vertically through the center of platform,
The lower end of the second main shaft is connected with the connecting bushing of handgrip components mechanism, drives handgrip components mechanism rotation fortune in the horizontal plane
Dynamic;
Further, each handgrip includes electric magnet, guide rod, the linear bearing for guide rod slip, leader casing, is used for even
Some groups of bearing pins, hook pawl seat and a pair of the hook pawl in hook pawl seat with bearing pin hinge joint connecing, to control electromagnetism by electric-controlled switch
The polarity of ferrum, the repulsion of electric magnet or attraction make guide rod move up and down in leader casing, guide rod extremely lower and pole in leader casing
Upper two kinds of positions have corresponded to relieving state and the retracted state hooking pawl respectively;
Further, the handgrip of handgrip components mechanism is configured with photographic head, and handgrip on handgrip components mechanism point
Cloth design attitude is supporting corresponding with the position in the crawl hole of center graphite components;
Center graphite column changes crawl and the lifting that mechanism mainly realizes center graphite components, in crawl center graphite components
When, by elevating mechanism drive handgrip components mechanism so that handgrip is moved downward, when handgrip move to close with center graphite components
Afterwards, rotary fine adjustment makes the crawl hole pair of handgrip and center graphite components in the horizontal direction to drive handgrip mechanism by rotary drive mechanism
Standard, Zai Shi mechanism integrally slowly moves downward certain distance, allows handgrip enter graphite components crawl hole, cardiolith in handgrip reaches
After ink assembly captures the bottom in hole, control electric magnet to decontrol handgrip by proximity switch, realize the crawl work of center graphite components
Make, after graphite components crawl, then make grasping mechanism and graphite components slow along the tooth bar of sleeve vertical rail by elevating mechanism
Slowly move upwards, realize the lifting of graphite components.
With respect to prior art, nuclear reactor center of the present invention graphite column more changing device has the advantage that:
More changing device of the present invention can adapt to nuclear reactor environmental condition and realizes changing the slow of platform entirety
And smoothly elevating movement, by rotary motion in the horizontal direction disposably by handgrip and crawl hole precise positioning, it is right to realize
The quick-replaceable of nuclear reactor center graphite column, and then so that the nuclear reactor heart is fully utilized, extend the whole of nuclear reactor
Body life time.
Brief description
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings:
Brief description
Fig. 1 is the elevating mechanism and platform general assembly drawing described in the embodiment of the present invention;
Fig. 2 is the broken section enlarged drawing of the general assembly drawing of Fig. 1;
Fig. 3 is the elevating mechanism and platform front view described in the embodiment of the present invention;
Fig. 4 is the elevating mechanism and platform top view described in the embodiment of the present invention;
Fig. 5 is partial sectional view at the elevating mechanism in Fig. 4 and platform W-W;
Fig. 6 is the rotating actuator sectional view described in the embodiment of the present invention;
Fig. 7 is sectional view at the V-V shown in Fig. 6;
Fig. 8 is the handgrip mechanism and view described in the embodiment of the present invention;
Fig. 9 is the handgrip mechanism assembling schematic diagram described in the embodiment of the present invention.
Description of reference numerals:
A- elevating mechanism;B- platform;C- rotary drive mechanism;D- handgrip components mechanism;1- reductor;2- gear housing;
3- flat surface;4- sleeve;5- lifting motor;6- driving gear;7- driven gear;8- first worm screw;9- first main shaft;10-
One worm gear;11- transmission axle;12- gear wheel;13- little gear;14- tooth bar;15- slide block;16- line slideway;17- electric rotating machine;
18- second worm screw;19- second worm gear;20- second worm-wheel shaft;21- first gear;22- second gear;23- second main shaft;24-
Connecting bushing;25- handgrip;26- electric magnet;27- guide rod;28- linear bearing;29- leader casing;30- bearing pin;31- hooks pawl seat;
32- hooks pawl.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combine.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or hint phase
To importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can
To express or to implicitly include one or more this feature.In describing the invention, unless otherwise stated, " multiple "
It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected;Can
To be to be mechanically connected or electrical connection;Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in Figure 1, 2, a kind of nuclear reactor center graphite column more changing device, including:Elevating mechanism A, rotary driving machine
Structure C and handgrip components mechanism D is interconnected by platform B and shaft configurations, constitutes overall, elevating mechanism A drives handgrip assembly
Mechanism D is vertically movable, and rotary drive mechanism C drives handgrip components mechanism D rotary motion;
As shown in Fig. 3,4,5, elevating mechanism A includes:Reductor 1, lifting motor 5 and the platform being fixed on circular platform B
Face 3 is driven by lifting motor 5 close to the gear housing 2 of medium position, elevating mechanism A, by driving gear 6 and driven gear 7
Drive the first worm screw 8 to rotate, then drive the first main shaft 9 to rotate by the first worm gear 10, the first main shaft 9 is connected on platform two ends
Reductor 1, the first main shaft 9 and the first worm gear 10 be located inside gear housing 2, and reductor 1 entirely can be driven with precise control
The movement velocity of mechanism and displacement, reductor 1 is being fixed on sleeve 4 by transmission axle 11 drive gear wheel 12 linkage little gear 13
On tooth bar 14 scroll-up/down so that whole circular platform B is vertically movable on sleeve 4;
Uniform four slide blocks 15 in flat surface 3 edge, and slide block 15 can slide on the line slideway 16 on sleeve for
Support platform B;
As shown in Figure 6,7, rotary drive mechanism C is fixed on the center of platform B, and rotary drive mechanism C is by electric rotating machine
17 drivings, drive the second worm gear 19 to rotate by the second worm screw 18, and the second worm gear 19 drives its second worm-wheel shaft 20 to rotate, and passes through
Second main shaft 23 of first gear 21 and second gear 22 linkage rotation drive mechanism C rotates, and the second of rotary drive mechanism C is main
Axle 23 passes vertically through the center of platform B, and the lower end of the second main shaft 23 is connected with the connecting bushing 24 of handgrip components mechanism D, drives
Dynamic handgrip components mechanism D rotary motion in the horizontal plane;
As shown in Figure 8,9, in fixed and arranged You Yu center graphite components in handgrip components mechanism D main body, crawl hole is corresponding
One group of handgrip 25, can adjust handgrip components mechanism D by the second main shaft 23 on rotary drive mechanism C makes handgrip 25 in water
The projected position of plane is alignd with the crawl hole in the graphite components of center;
Each handgrip 25 includes electric magnet 26, guide rod 27, the linear bearing 28 for guide rod slip, leader casing 29, is used for
The some groups of bearing pins 30 connecting, hook pawl seat 31, and a pair of the hook pawl 32 being linked in hook pawl seat 31 with bearing pin 30, are opened by automatically controlled
Close and to control the polarity of electric magnet 26, the repulsion of electric magnet or attraction that guide rod 27 is moved up and down in leader casing 29, guide rod
27 extremely go up down and extremely two kinds of positions in leader casing 29 has corresponded to relieving state and the retracted state hooking pawl 32 respectively.
Center graphite column changes crawl and the lifting that mechanism mainly realizes center graphite components, in crawl center graphite components
When, drive handgrip components mechanism D so that handgrip 25 is moved downward by elevating mechanism A, when handgrip 25 moves to and center graphite group
After part is close, rotary fine adjustment makes handgrip 25 and center graphite components in the horizontal direction to drive handgrip mechanism by rotary drive mechanism C
Crawl hole be aligned, Zai Shi mechanism integrally slowly moves downward certain distance, allows handgrip 25 enter graphite components crawl hole, when grabbing
After handss 25 reach the bottom that center graphite components capture hole, electric magnet 26 is controlled to decontrol handgrip 25 by proximity switch, in realization
The crawl of cardiolith ink assembly, after graphite components crawl, then makes grasping mechanism and graphite components along sleeve 4 by elevating mechanism A
The tooth bar 14 of vertical rail slowly moves upwards, realizes the lifting of graphite components;
It is configured with photographic head on the handgrip 25 of handgrip components mechanism D, photographic head is not shown, and handgrip 25 is in handgrip
Distribution design attitude on components mechanism D is supporting corresponding with the position in the crawl hole of center graphite components;
So the present invention can be matched and be carried out by rotary motion in the horizontal direction and overall slow elevating movement
What crawl was dynamic is accurately positioned work.
The present invention is applied not only in the Renewal process of center graphite column of nuclear reactor, can also use in other classes with holes
The occasion of material handling.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of nuclear reactor center graphite column more changing device, including:Elevating mechanism (A), by circular platform (B) and axostylus axostyle
Rotary drive mechanism (C) and handgrip components mechanism (D) that structure is coupled to each other, elevating mechanism (A) drives handgrip components mechanism (D)
Do vertical motion, rotary drive mechanism (C) drives handgrip components mechanism (D) to rotate, in handgrip components mechanism (D) main body
Fixed and arranged has handgrip (25).
2. nuclear reactor center according to claim 1 graphite column more changing device it is characterised in that:Elevating mechanism (A) wraps
Include:Reductor (1), lifting motor (5), it is fixed on the flat surface (3) of platform (B), close to the gear housing (2) of medium position,
Elevating mechanism (A) is driven by lifting motor (5), drives the first worm screw (8) to rotate by driving gear (6) and driven gear (7),
The first main shaft (9) is driven to rotate by the first worm gear (10) again, the first main shaft (9) is connected on the reductor (1) at platform two ends,
First main shaft (9) and the first worm gear (10) are located at gear housing (2) inside, and reductor (1) drives canine tooth by transmission axle (11)
Tooth bar (14) scroll-up/down on being fixed on sleeve (4) for the wheel (12) linkage little gear (13), so that whole circular platform (B) exists
Sleeve does vertical motion on (4).
3. nuclear reactor center according to claim 1 graphite column more changing device it is characterised in that:Rotary drive mechanism
(C) it is fixed on the geometric center of platform (B), rotary drive mechanism (C) is driven by electric rotating machine (17), by the second worm screw (18)
Drive the second worm gear (19) to rotate, the second worm gear (19) drives its second worm-wheel shaft (20) to rotate, by first gear (21) and
Second main shaft (23) of second gear (22) linkage rotation drive mechanism (C) rotates, the second main shaft of rotary drive mechanism (C)
(23) geometric center of platform (B), the connecting bushing of the lower end of the second main shaft (23) and handgrip components mechanism (D) are passed vertically through
(24) it is connected, drive handgrip components mechanism (D) rotary motion in the horizontal plane.
4. nuclear reactor center according to claim 1 graphite column more changing device it is characterised in that:Handgrip (25) includes electricity
Magnet (26), guide rod (27), the linear bearing (28) sliding for guide rod (27), leader casing (29), for some groups connected
Bearing pin (30), hooks pawl seat (31), and is hooking a pair of in pawl seat (31) hook pawl (32) with bearing pin (30) hinge joint, by electric-controlled switch
To control the polarity of electric magnet (26), the repulsion of electric magnet or attraction that guide rod (27) is moved up and down in leader casing (29),
Guide rod (27) is extremely gone up down and extremely two kinds of positions in leader casing (29) and has been corresponded to the relieving state of hook pawl (32) respectively and withdrawn shape
State.
5. nuclear reactor center according to claim 2 graphite column more changing device it is characterised in that:Flat surface (3) edge
Uniform several slide blocks (15) in place, and slide block (15) can be in the upper slip of the line slideway (16) on sleeve (4).
6. nuclear reactor center according to claim 1 graphite column more changing device it is characterised in that:Handgrip components mechanism
(D) it is configured with photographic head on handgrip (25).
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CN201611179172.5A CN106448771B (en) | 2016-12-19 | 2016-12-19 | A kind of nuclear reactor center graphite column more changing device |
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CN201611179172.5A CN106448771B (en) | 2016-12-19 | 2016-12-19 | A kind of nuclear reactor center graphite column more changing device |
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CN106448771B CN106448771B (en) | 2018-09-21 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107123453A (en) * | 2017-06-08 | 2017-09-01 | 清华大学天津高端装备研究院 | A kind of replacing platform for reactor inner part |
CN107393614A (en) * | 2017-07-31 | 2017-11-24 | 清华大学天津高端装备研究院 | The grasping mechanism of graphite block in a kind of reactor |
CN110018320A (en) * | 2019-03-29 | 2019-07-16 | 赫安仕科技(苏州)有限公司 | A kind of detection driving device and driving method |
CN114986199A (en) * | 2022-05-08 | 2022-09-02 | 昆明云内动力股份有限公司 | Turning operation device of cross workbench vertical drilling machine |
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CN114986199A (en) * | 2022-05-08 | 2022-09-02 | 昆明云内动力股份有限公司 | Turning operation device of cross workbench vertical drilling machine |
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