CN108689299A - The dilatation of million kilowatt Spent Fuel Pool removes overturning technique with old screen work - Google Patents
The dilatation of million kilowatt Spent Fuel Pool removes overturning technique with old screen work Download PDFInfo
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- CN108689299A CN108689299A CN201810493561.8A CN201810493561A CN108689299A CN 108689299 A CN108689299 A CN 108689299A CN 201810493561 A CN201810493561 A CN 201810493561A CN 108689299 A CN108689299 A CN 108689299A
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- China
- Prior art keywords
- screen work
- old screen
- spent fuel
- fuel pool
- plate
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a kind of old screen works of million kilowatt Spent Fuel Pool dilatation to remove overturning technique, includes the following steps:Measure the radiation level of the old screen work in Spent Fuel Pool;If radiation level is less than or equal to the first preset value, old screen work is hung out into Spent Fuel Pool to preparing well;If radiation level is more than the first preset value and is less than the second preset value, old screen work is rinsed in Spent Fuel Pool, then old screen work is hung out into Spent Fuel Pool to preparing well;If radiation level is greater than or equal to the second preset value, old screen work is rinsed in Spent Fuel Pool, then whether the radiation level of the old screen work of repetition measurement is less than the second preset value;If so, old screen work is hung out Spent Fuel Pool to well is prepared, if it is not, then otherwise processed.The radiation level that the present invention prepares the old screen work in well is satisfied by requirement, can not only realize and be overturn to transporting equipment after removing old screen work, moreover it is possible to ensure that the radiation level of old screen work disclosure satisfy that the requirement of transportational process.
Description
Technical field
The present invention relates to the technical field of million kilowatt nuclear power station core supplement heat rejecter water more particularly to million kilowatt are weary
Fuel pit dilatation removes overturning technique with old screen work.
Background technology
Spentnuclear fuel refers to by radiation exposure, used nuclear fuel, is generated by the nuclear reactor of nuclear power station.Core is anti-
Include a large amount of radioactive elements in nuclear fuel after answering heap to react, therefore there are a large amount of radioactivity, if do not located properly
Reason, can seriously affect the health of environment and the personnel for contacting them.Therefore via the weary combustion after the reaction of the nuclear reactor of nuclear power station
Material needs to store many decades in Spent Fuel Pool, until its radioactivity is reduced to and can carry out the subsequently post-processing to spentnuclear fuel
When technique.With domestic nuclear power be on the increase and the lasting operation of nuclear power station, most domestic nuclear power station is weary at present
The old screen work of fuel pit screen work completely holds, and it is impossible to meet the need of spentnuclear fuel storage inside nuclear power station for existing container
It asks, therefore Spent Fuel Pool must expand Spent Fuel Pool storage capacity by transformation, ensure the normal production in nuclear power station.
When carrying out Spent Fuel Pool dilatation operation, it is necessary first to first the old screen work inside Spent Fuel Pool is removed,
It needs first to transport the spentnuclear fuel inside old screen work to external storage before carrying out old screen work dismounting, but the weary combustion inside old screen work
The radioactivity of material is not reduced to the emittance value that can be transported and carry out needed for the aftertreatment technology of follow-up spentnuclear fuel generally, therefore
Transport and storage to spentnuclear fuel bring great difficulty.
It after spentnuclear fuel empties, needs to remove old screen work, the dismounting of old screen work is at home and abroad to carry out for the first time, old lattice
Frame is soaked in the inside with radioactive pond due to being used to store spentnuclear fuel for a long time, therefore with a large amount of on old screen work
Radioactivity, staff can not directly close to old screen work and touching, staff can not slip into association inside weary pond
The operation for lifting old screen work is helped and observed, entire work is also given to bring great difficulty, in the installation of the old screen work of new screen work,
Due to also containing radioactive substance in pond, installation difficulty is also very big.
There are old screen work several to be set to the grid (irradiated fuel store unit) on bottom plate, bottom plate position corresponding with grid
With for several matched holes for hoist of hanging apparatus.Old screen work in bottom of pond can not manually installed hanging device into
Row is hung out, and the old grid size after dismounting is larger, and the size of the isolating door of workshop is limited, and old screen work can not be with vertical state
Across the isolating door of workshop, it is therefore desirable to be transported again by isolating door after overturning old screen work.
Invention content
The purpose of the present invention is to provide the old screen works of million kilowatt Spent Fuel Pool dilatation to remove overturning technique, it is intended to
It solves to hang out and overturn to the old screen work of transporting equipment to meet from Spent Fuel Pool in the prior art to preset emission requirements
Problem.
For this purpose, the present invention uses following technical scheme:
The dilatation of million kilowatt Spent Fuel Pool removes overturning technique with old screen work, includes the following steps:
S200, measure Spent Fuel Pool in old screen work radiation level;
S300, it is pre-processed according to radiation level:
If radiation level is less than or equal to the first preset value, step S500 is directly executed;
If radiation level is more than the first preset value and is less than the second preset value, step S400 is first carried out, then execute step
S500;
If radiation level is greater than or equal to the second preset value, first carry out step S400, then repetition measurement execute step S400 it
Whether the radiation level of old screen work afterwards is less than the second preset value;If so, S500 is thened follow the steps, if it is not, then otherwise processed;
S400, old screen work is rinsed in Spent Fuel Pool;
S500, old screen work is hung out into Spent Fuel Pool to preparing well using hanging apparatus;
S700, the old screen work prepared in well is hung out and is overturn to transporting equipment.
Beneficial effects of the present invention:The radiation level for first measuring the surface of old screen work, further according to the radiation level to old lattice
Frame carries out different processing steps;The old screen work prepared in well is hung out again and is overturn to transporting equipment, due to preparing in well
The radiation level of old screen work is satisfied by preset requirement, therefore can not only realize overturning after the dismounting of old screen work to transporting equipment,
Also ensure that the radiation level of old screen work disclosure satisfy that the requirement of transportational process.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is that the dilatation of million kilowatt Spent Fuel Pool removes overturning technological process with old screen work in the embodiment of the present invention
Block diagram;
Fig. 2 is the structural schematic diagram of the workshop with Spent Fuel Pool in the embodiment of the present invention;
Fig. 3 is the structural schematic diagram of old screen work in the embodiment of the present invention;
Fig. 4 is the connection diagram of grabbing assembly and lifting cross beam in the embodiment of the present invention;
Fig. 5 is that grabbing assembly stretches into the crawl schematic diagram in grid in the embodiment of the present invention;
Fig. 6 is the structural schematic diagram of grasping mechanism releasing orientation in the embodiment of the present invention;
Fig. 7 is that grasping mechanism firmly grasps state in the embodiment of the present invention;
Fig. 8 stretches into vertical view when grid for grabbing assembly in the embodiment of the present invention;
Fig. 9 is the structural schematic diagram of external driving mechanism in the embodiment of the present invention;
Figure 10 is the structural schematic diagram of the bottom of the old screen work of the present invention;
Figure 11 be the embodiment of the present invention in old screen work at Spent Fuel Pool bottom external drive mechanism to grabbing assembly
Operation chart;
External drive mechanism is to grabbing assembly when Figure 12 is old screen work disengaging Spent Fuel Pool in the embodiment of the present invention
Operation chart;
Figure 13 is the cooperation schematic diagram that rotation pushes push rod and vertical loading board in the embodiment of the present invention;
Figure 14 is the cooperation schematic diagram of external driving mechanism and supporting rack in the embodiment of the present invention;
Figure 15 is the structural schematic diagram of supporting rack in the embodiment of the present invention;
Figure 16 is the overturning flow chart of the old screen work in the embodiment of the present invention;
Figure 17 is the old screen work in the embodiment of the present invention and the exploded view after the cooperation of vertical lifting tool;
Figure 18 is the schematic diagram moved horizontally after old screen work is overturn in the embodiment of the present invention;
In figure:
1, old screen work;11, bottom plate;111, hole for hoist;12, grid;2, grabbing assembly;21, vertical loading board;211, level trough;
212, the first vertical slots;213, the second vertical slots;22, mounting plate is captured;23, grasping mechanism;231, grabbing claw;2311, circular arc
Face;232, rotational pin;24, driving mechanism is captured;241, mandril;242, jacking block;25, resetting spring;3, lifting cross beam;31, horizontal
Beam ontology;32, plate is lifted;33, fixed plate;331, fixing groove;4, transmission mechanism;41, vertical push rod;42, rotation pushes push rod;
5, external drive mechanism;51, long bar body;511, connecting rod;5111, first through hole;512, connecting shaft;513, wire;
514, pin;515, lifting lug;52, push-down head;521, pushing slot is rotated;53, rotating horizontal pole;6, supporting rack;61, support portion;
611, support slot;6111, arc sections;6112, notch;62, fixed part;621, tablet;6211, hanging piece;622, the first vertical plate;
623, the second vertical plate;7, pool wall;8, connection component;81, the first shackle;82, connecting plate;821, third lifts circular hole;83, it stands
Plate;9, returning face plate;91, horizontal part;911, third connecting bracket;92, vertical portion;93, curved portion;10, hanger rod component;101, it hangs
Bar body;102, the second shackle;103, mounting plate;104, third shackle;11, the first connecting rope;12, transporting equipment;121, it puts
Set plate;122, sleeper;13, support component;131, the first support plate;1311, the first connecting bracket;1312, the first lifting circular hole;
132, the second support plate;1321, the second connecting bracket;1322, the second lifting circular hole;14, the second connecting rope;15, loading hatch;
16, prepare well;17, Spent Fuel Pool.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The realization of the present invention is described in detail below in conjunction with specific embodiment.
As shown in Fig. 1-Figure 18, the embodiment of the present invention proposes a kind of old screen work of million kilowatt Spent Fuel Pool dilatation
Overturning technique is removed, is included the following steps:
S200, measure Spent Fuel Pool 17 in old screen work 1 radiation level;
S300, it is pre-processed according to radiation level:
If radiation level is less than or equal to the first preset value, step S500 is directly executed;
If radiation level is more than the first preset value and is less than the second preset value, step S400 is first carried out, then execute step
S500;
If radiation level is greater than or equal to the second preset value, first carry out step S400, then repetition measurement execute step S400 it
Whether the radiation level of old screen work 1 afterwards is less than the second preset value;If so, S500 is thened follow the steps, if it is not, then otherwise processed;
S400, old screen work 1 is rinsed in Spent Fuel Pool 17;
S500, old screen work 1 is hung out into Spent Fuel Pool 17 to preparation well 16 using hanging apparatus;
S700, the old screen work 1 prepared in well 16 is hung out and is overturn to transporting equipment 12.
In an embodiment of the present invention, the radiation level on the surface for the old screen work 1 being located in Spent Fuel Pool 17 is first measured,
Different processing steps is carried out to old screen work 1 further according to the radiation level;When radiation level is less than or equal to the first preset value
Old screen work 1 is directly hung out into Spent Fuel Pool 17 to preparation well 16 using hanging apparatus when 2mSv/h (mSv is per hour);
When radiation level is more than the first preset value and is less than the second preset value 10mSv/h, first in the Spent Fuel Pool 17 to old screen work 1 into
Row is rinsed to reduce radiation level, recycles hanging apparatus that old screen work 1 is hung out Spent Fuel Pool 17 to preparation well 16;Work as radiation
Level is greater than or equal to the second preset value, is first rinsed to old screen work 1 in Spent Fuel Pool 17 to reduce radiation level, then
The radiation level of the old screen work of repetition measurement 1, if the radiation level of repetition measurement is less than the second preset value, using hanging apparatus by old screen work 1
Hang out Spent Fuel Pool 17 to prepare well 16, if repetition measurement radiation level be greater than or equal to the second preset value if otherwise processed, separately
Processing of going is specially to continue to rinse to lower radiation level until meeting the requirements, or directly lift to area of isolation;Again will
The old screen work 1 prepared in well 16 hangs out and overturns to transporting equipment 12, since the radiation level for preparing the old screen work 1 in well 16 is equal
Meet preset requirement, therefore is overturn to the radiation level of the old screen work 1 of transporting equipment 12 after removing and disclosure satisfy that transportational process
It is required that.
Further, overturning technique is removed as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
A kind of specific implementation mode, step S200 is specially:First measurement point is taken to be surveyed at the top of the grid of old screen work 1
Amount, often declines a pre-determined distance along the inner wall of grid and a measurement point is taken to measure.Specifically, every along the inner wall of grid
Declining a pre-determined distance takes a measurement point to measure, and ensures the comprehensive of measurement, for radiating larger part into rower
Note.
Further, overturning technique is removed as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
A kind of specific implementation mode, further include following steps before step S200:S100, will be around old screen work 1 to be removed
Irradiated fuel assembly in other old screen works 1 removes.It will need other around the old screen work 1 that is hung out out of Spent Fuel Pool 17
Irradiated fuel assembly in old screen work 1 removes, and avoids the influence in operating process.
Further, overturning technique is removed as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
A kind of specific implementation mode, further include following steps before step S700:S600, hanging apparatus is taken out, is preparing well 16
It is interior that old screen work 1 is rinsed.After hanging apparatus is by the lifting of old screen work 1 to preparation well 16, hanging apparatus unclamps old screen work 1 simultaneously
It is removed from old screen work 1, then is preparing to be rinsed operation to old screen work 1 in well 16.
Further, overturning technique is removed as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
A kind of specific implementation mode, the first preset value be 2mSv/h (mSv is per hour), the second preset value be 10mSv/h, in advance
If distance is 1000 millimeters.
Further, Fig. 4-Fig. 8 is please referred to, as the old lattice of million kilowatt Spent Fuel Pool dilatation provided by the invention
Frame removes a kind of specific implementation mode of overturning technique, and hanging apparatus includes:For the hole for hoist 111 with 1 bottom plate 11 of old screen work
Matched grabbing assembly 2, the lifting cross beam 3 for installing grabbing assembly 2 and the drive for driving lifting cross beam 3 to move
Dynamic device;Grabbing assembly 2 include be fixedly connected with lifting cross beam 3 and for the vertical loading board 21 of hollow form, to be set to vertical loading board 21 separate
3 one end of lifting cross beam captures mounting plate 22, set at least one grasping mechanism 23 of crawl mounting plate 22 and set on lifting
The inside of bar 21 and the crawl driving mechanism 24 for being used to that grasping mechanism 23 to be driven to complete grasping movement.Old screen work 1 includes bottom plate 11
And several grids 12 arranged with array way set on bottom plate 11, grid 12 are hollow and for placing spentnuclear fuel,
Several holes for hoist 111 are equipped on the bottom plate 11 of the corresponding position in bottom of each grid 12, grabbing assembly 2 is used for by hanging
Dress hole 111 captures 1 bottom plate 11 of old screen work, and lifting cross beam 3 is hung for installing several grabbing assemblies 2, driving device with driving
It fills crossbeam 3 in the horizontal direction and vertical direction moves.In this present embodiment, 17 dilatation of Spent Fuel Pool is lifted with old screen work 1 and is filled
It is setting use process is as follows:Driving device drives lifting cross beam 3 to predeterminated position so that each grabbing assembly 2 is located at certain
The top of a grid 12, driving device driving lifting cross beam 3 are moved straight down so that the vertical loading board 21 in grabbing assembly 2 stretches into
Inside grid 12, the crawl driving mechanism 24 set on the inside of vertical loading board 21 drives grasping mechanism 23 so that grasping mechanism 23 is in
Releasing orientation (namely non-gripping state), after grasping mechanism 23 runs through hole for hoist 111, crawl driving mechanism 24 drives gripper
Structure 23 is so that grasping mechanism 23 is in promptly state (namely grasping mechanism 23 lives the bottom clamping of old screen work 1);Then driving
Device driving lifting cross beam 3 moves straight up, and the have been friends in the past grabbing assembly 2 of screen work 1 of crawl is moved upwards with lifting cross beam 3
Old screen work 1 is taken away into the bottom of pond of Spent Fuel Pool 17 in the process and rises to certain height, until leaving spentnuclear fuel water completely
Pond 17, and then realize that old screen work 1 hangs out old screen work 1 from Spent Fuel Pool 17 in demolishing process.
Further, overturning technique is removed as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
A kind of specific implementation mode, step S500 is specially:S510, driving device move in the horizontal direction, and will be set to lifting cross beam 3
The lifting of grabbing assembly 2 to the surface of old screen work 1;S520, driving device are moved in vertical direction, will be in releasing orientation
Grabbing assembly 2 stretches into the grid of old screen work 1, and grasping mechanism 23 is stretched into hole for hoist 111;S530, crawl driving machine
Structure 24 drives grasping mechanism 23 to complete grasping movement;S540, old screen work 1 is hung out to Spent Fuel Pool 17 to preparation well 16.
Further, Fig. 4-Fig. 8 is please referred to, as the old lattice of million kilowatt Spent Fuel Pool dilatation provided by the invention
Frame removes a kind of specific implementation mode of overturning technique, and grasping mechanism 23 includes two grabbing claws 231 being oppositely arranged, each to capture
Pawl 231 is rotatablely connected with crawl mounting plate 22;Crawl driving mechanism 24 includes the jacking block for driving grabbing claw 231 to rotate
242 and the mandril 241 that is connected with jacking block 242;Arc surface 2311, jacking block 242 and each circular arc are all had on each grabbing claw 231
Face 2311 abuts.Specifically, the center of circle that the arc surface 2311 on grabbing claw 231 is arranged is located at except grabbing claw 231, therefore circle
Cambered surface 2311 is that grabbing claw 231 is recessed;Jacking block 242 is located between two grabbing claws 231 of grasping mechanism 23 namely jacking block
242 abut with two grabbing claws 231 on a grasping mechanism 23 simultaneously simultaneously;The crawl of grasping mechanism 23 and release process
For:For jacking block 242 when to being moved close to the direction of grasping mechanism 23, jacking block 242 moves through circular arc along arc surface 2311
Face 2311 is pushed two grabbing claws 231 on a grasping mechanism 23 to direction far from another grabbing claw 231 and is rotated respectively,
So that grasping mechanism 23 is in the non-gripping state opened;When jacking block 242 is moved to the direction far from grasping mechanism 23
When, jacking block 242 is moved along arc surface 2311, and by arc surface 2311 by two grabbing claws on a grasping mechanism 23
231 push to rotate close to the direction of another grabbing claw 231 respectively, so that grasping mechanism 23 is in the crawl shape closed
State.
Further, Fig. 4-Figure 13 is please referred to, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific implementation mode of overturning technique, further includes for driving mandril 241 to be moved along the axis of vertical loading board 21
External drive mechanism 5 and the transmission mechanism 4 between mandril 241 and external drive mechanism 5;Transmission mechanism 4 include with
The vertical push rod 41 that the one end of mandril 241 far from jacking block 242 abuts;External drive mechanism 5 includes long bar body 51 and is set to
The end of long bar body 51 and the push-down head 52 for being used to that vertical push rod 41 to be pushed to move.Specifically, long bar body 51 is pushed to drive
Push-down head 52 moves, and drives vertical push rod 41 along the axis of vertical loading board 21 inside vertical loading board 21 in 52 moving process of push-down head
Movement, since vertical push rod 41 is abutted with mandril 241, vertical push rod 41 is along the axis of vertical loading board 21 in vertical loading board 21
Drive mandril 241 that, in 21 internal motion of vertical loading board, the top in 241 end of mandril is set along the axis of vertical loading board 21 when portion moves
Block 242 is moved with the movement of mandril 241.
Further, Fig. 4-Fig. 8 is please referred to, as the old lattice of million kilowatt Spent Fuel Pool dilatation provided by the invention
Frame removes a kind of specific implementation mode of overturning technique, and transmission mechanism 4 further includes being set to vertical push rod 41 far from 241 one end of mandril
Rotation push push rod 42, vertical loading board 21 offer sliding limit slot structure, rotation push push rod 42 pass through slide limiting slot knot
Structure is slidably connected with vertical loading board 21;Sliding limit slot structure includes level trough 211, is grabbed set on 211 one end of level trough and along separate
Take the first vertical slots 212 of 23 direction of mechanism extension and set on 211 other end of level trough and along far from 23 direction of grasping mechanism
The second vertical slots 213 extended;The length of first vertical slots 212 is more than the length of the second vertical slots 213, and push-down head 52 offers
For pushing 42 matched rotation pushing slot 521 of push rod with rotation, resetting spring is equipped between mandril 241 and vertical loading board 21
25.Specifically, it is arranged and rotates the rotation pushing slot for pushing push rod 42 and being used for and being arranged on push-down head 52 in vertical push rod 41
521 match, and rotation pushing slot 521 is set in rotation and pushes outside push rod 42, is driven under rotation when push-down head 52 moves linearly
Pressure push rod 42 moves in a straight line, and drives rotation to push push rod 42 when push-down head 52 rotates and rotates.Push-down head 52 drives rotation to push
The process that push rod 42 is moved in a straight line and rotated is as follows:Push long bar body 51 that push-down head 52 is driven to move, push-down head 52 moves
It drives rotation to push push rod 42 along the axis of vertical loading board 21 in 21 internal motion of vertical loading board in the process, and rotates and push push rod 42
It is moved along the first vertical slots 212, the linear motion for driving rotation to push push rod 42 is completed with this, moved when rotation pushes push rod 42
It moves to the end of the first vertical slots 212 and (rotation pushes push rod 42 and moved along the first vertical slots 212 with 211 level of level trough
During transfer mandril 241 move a certain distance in vertical loading board 21 so that grasping mechanism 23 is pushed into pine by jacking block 242
Open state, this process resetting spring 25 are compressed), it rotates long bar body 51 and push-down head 52 is driven to rotate, rotation pushes push rod 42
The end that certain angle reaches the second vertical slots 213 is rotated along level trough 211 with the rotation of push-down head 52, will be grown at this time
Bar body 51 is moved along the direction far from vertical loading board 21, and resetting spring 25 pushes vertical push rod 41 that rotation is driven to push 42 edge of push rod
It the second vertical slots 213 and moves to second one end of vertical slots 213 far from level trough 211, the second vertical slots 213 are to rotation at this time
Push rod 42 is pushed to limit so that rotation pushes push rod 42 and can not rotate, namely the position of mandril 241 is fixed at this time, therefore by
The grasping mechanism 23 that mandril 241 drives jacking block 242 to control also keeps the state unclamped.It is required that grasping mechanism 23 also keeps grabbing
When tight state, along above-mentioned opposite step:Also the rotation in the second vertical slots 213 is pushed into push rod 42 and presses to level trough
It is rotated backward again in 211 to the end of the first vertical slots 212, since the effect of resetting spring 25 makes rotation push 42 edge of push rod
It the first vertical slots 212 and moves to first one end of vertical slots 212 far from level trough 211.Due to the length of the first vertical slots 212
More than the length of the second vertical slots 213, therefore when rotation pushes push rod 42 the first vertical slots are moved to along the first vertical slots 212
When 212 end far from level trough 211, grasping mechanism 23 is pushed in seized condition by jacking block 242;When rotation pushes push rod
42 along the second vertical and straight movement to the end far from level trough 211 when, grasping mechanism 23 is pushed in unclamping shape by jacking block 242
State.For example, the length of the first vertical slots 212 is 50 millimeters, the length of the second vertical slots 213 is 10 millimeters;First vertical slots 212
End far from level trough 211 is to level trough 211, then during reaching the second vertical and straight movement to the end far from level trough 211,
Mandril 241 has moved 40 millimeters along the axis of vertical loading board 21 to close to the direction of grasping mechanism 23, namely is arranged in mandril 241
The jacking block 242 of end along the axis of vertical loading board 21 moved 40 millis to close to the direction of grasping mechanism 23 with mandril 241
Rice.The both ends of resetting spring 25 are connected with the inner wall of mandril 241 and vertical loading board 21 respectively, realize that mandril 241 is grabbed close with this
Compression reseting spring 25 when taking mechanism 23, it is multiple when mandril 241 is not by external force or by the external force put down far from grasping mechanism 23
The elastic force that position spring 25 resets, which pushes up mandril 241 to the direction far from grasping mechanism 23, to be moved.
Further, referring to Fig. 9, being torn open with old screen work as million kilowatt Spent Fuel Pool dilatation provided by the invention
Except a kind of specific implementation mode of overturning technique, long bar body 51 includes two or more connecting rods 511, for connecting adjacent company
The connecting shaft 512 of extension bar 511, the wire 513 being connected with the end of connecting shaft 512 and wire 513 are far from connecting shaft 512
The connected pin 514 in one end and mounting fixing parts set on connecting rod 511 and for installing wire 513;Connecting rod
511 have been disposed radially for 512 perforative first through hole 5111 of connecting shaft, and the one end of connecting shaft 512 far from wire 513 is opened
Equipped with for 514 perforative second through-hole of pin.Specifically, using the mounting fixing parts being arranged in connecting rod 511 by metal
Silk 513 is installed in connecting rod 511, and the both ends of wire 513 are connected with connecting shaft 512 and 513 pin 514 of wire respectively,
Therefore it in the disassembly process of long bar body 51, is easy 513 pin 514 of the wire fallen and is connected with wire 513, wire
513 are installed on mounting fixing parts so that 513 pin 514 of wire is not fallen out to Spent Fuel Pool 17;And due to connection
Axis 512 is connected with wire 513, therefore connecting shaft 512 will not be fallen in disassembly process in Spent Fuel Pool 17;In turn
It disclosure satisfy that not having component in hoisting process falls in Spent Fuel Pool 17.
Further, referring to Fig. 9, being torn open with old screen work as million kilowatt Spent Fuel Pool dilatation provided by the invention
Except a kind of specific implementation mode of overturning technique, mounting fixing parts are the installation sheet with third through-hole, and wire 513 is through the
Three through-holes, the outer diameter of pin 514 are more than the internal diameter of third through-hole;Connecting shaft 512 is equipped with the circle for being connected with wire 513
Ring, the outer diameter of annulus are less than the internal diameter of third through-hole;The quantity of first through hole 5111 is multiple, and first through hole 5111 is located at connection
The both ends of bar 511, the outer diameter of 511 one end of connecting rod are less than or equal to the internal diameter of 511 other end of connecting rod.Specifically, installation is solid
Determine part installation wire 513 process be:Third through-hole of the wire 513 on installation sheet, due to 513 pin of wire
514 outer diameter is more than the internal diameter of third through-hole, since the outer diameter of 512 thinner one end of connecting shaft is more than 513 pin 514 of wire
Outer diameter, it may thus be appreciated that internal diameter of the outer diameter of connecting shaft 512 also greater than third through-hole;Therefore wire 513 can be logical along third
Hole is mobile but can not be detached from third through-hole, and then realizes installation to wire 513 and be fixed on installation sheet, ensures wire
513 pins 514 and connecting shaft 512 are not fallen out in the disassembly process of long bar body 51 to Spent Fuel Pool 17.
Further, referring to Fig. 9, being torn open with old screen work as million kilowatt Spent Fuel Pool dilatation provided by the invention
Except a kind of specific implementation mode of overturning technique, the one end of long bar body 51 far from push-down head 52 is equipped with rotating horizontal pole 53, stock
Fourth hole is offered on ontology 51, rotating horizontal pole 53 is detachably connected by fourth hole and long bar body 51.Specifically, it pulls
Dynamic rotating horizontal pole 53 and then realization drive the long rotation of bar body 51, rotating horizontal pole 53 removable by fourth hole and long bar body 51
It unloads and connects and then realize the rotating horizontal pole 53 for replacing different length, different turn can be provided by replacing the rotating horizontal pole 53 of different length
Power arm, to satisfy the use demand.
Further, overturning technique is removed as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
A kind of specific implementation mode, the outside of long bar body 51 is equipped with guide pad, and guide pad is removable by screw and long bar body 51
Connection is unloaded, the one end of vertical loading board 21 far from grasping mechanism 23 is equipped with conical pipe;Guide pad is polyethylene blocks, guide pad along bottom extremely
The outer diameter of top-direction gradually increases, and the outer diameter at the top of guide pad is less than or equal to the internal diameter of vertical loading board 21.
Further, 4- Figure 15 is please referred to Fig.1, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific implementation mode of overturning technique, further includes the supporting rack 6 for installing long bar body 51;Supporting rack 6
Fixed part 62 including being used to support the support portion 61 of long bar body 51 and with 61 one of support portion;Long bar body 51 is equipped with
With 61 matched support pendant of support portion.Specifically, supporting rack 6 is used to support connecting rod 511, and then realizes supporting linkage
The long bar body 51 of 511 compositions;The fixed part 62 of supporting rack 6 is for the side with the external environment such as top of Spent Fuel Pool 17
Wall is fixed, and support portion 61 is directly contacted with connecting rod 511 and supporting linkage 511.
Further, 4- Figure 15 is please referred to Fig.1, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific implementation mode of overturning technique, and support portion 61 offers support slot 611, and support slot 611 includes circular arc
Portion 6111 and the notch 6112 communicated with arc sections 6111;Support pendant include the first support ring and with the first support ring
Second support ring of one;The outer diameter of first support ring is less than the distance at 6112 both ends of notch, and the outer diameter of the second support ring is more than
The internal diameter of arc sections 6111.Specifically, the process for long bar body 51 being placed in support portion 61 is:First support ring passes through notch
6112 enter the inside of arc sections 6111, and the second support ring for being now placed in the top of the first support ring is located at the upper of annular portion
Side, since the outer diameter of the second support ring is more than the internal diameter of arc sections 6111, the second support ring and the surface of support portion 61 are supported
It taps into and realizes that long bar body 51 is placed in support portion 61, while the outer diameter of the first support ring is less than the internal diameter of arc sections 6111, because
This first support ring and the long bar body 51 integrated with it can be rotated relative to support portion 61, to realize to long bar body 51
Rotation operation.
Further, 4- Figure 15 is please referred to Fig.1, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific implementation mode of overturning technique, and fixed part 62 includes the tablet 621 being connected with support portion 61, is set to and puts down
First vertical plate 622 and the second vertical plate 623 of 621 the same side of plate;Have between first vertical plate 622 and the second vertical plate 623
There are gap, the first vertical plate 622 to be arranged in parallel with the second vertical plate 623, it is remote that the first vertical plate 622 is located at the second vertical plate 623
Side from support portion 61, the first vertical plate 622 are equipped with the screw being threadedly coupled with the first vertical plate 622;It is set on tablet 621
Have and the matched hanging piece 6211 of suspension hook, hanging piece 6211 and the first vertical plate 622 both sides that be located at tablet 621 opposite.Tool
Body, the gap between the first vertical plate 622 and the second vertical plate 623 is tightened and is arranged in the first vertical plate for accommodating pool wall 7
622 screw makes the end of screw tightly be connected to pool wall 7, and then realizes that the first vertical plate 622 and the second vertical plate 623 block
In on pool wall 7.
Further, Fig. 5-Fig. 7 is please referred to, as the old lattice of million kilowatt Spent Fuel Pool dilatation provided by the invention
Frame removes a kind of specific implementation mode of overturning technique, and the quantity of grasping mechanism 23 is two, and crawl mounting plate 22, which is equipped with, to be used for
The mounting groove for installing grabbing claw 231 is equipped with rotational pin 232 between grabbing claw 231 and the side wall of mounting groove.Specifically, Mei Gege
The quantity of the hole for hoist 111 of the bottom of grid 12 is 4, sets the quantity of grasping mechanism 23 to two namely four grabbing claws
231 correspond to a hole for hoist 111 respectively;The four direction of jacking block 242 abutted with arc surface 2311 namely jacking block 242 simultaneously
It is abutted simultaneously with four grabbing claws 231 on two grasping mechanisms 23;The crawl of grasping mechanism 23 and release process are:Jacking block
242 close to the direction of grasping mechanism 23 when to moving, and jacking block 242 moves through arc surface 2311 along arc surface 2311 will
Two grabbing claws 231 one grasping mechanism 23 (can realize while control two grasping mechanisms 23) herein on are pushed to separate respectively
The direction of another grabbing claw 231 rotates, so that grasping mechanism 23 is in the non-gripping state opened.
Further, Fig. 5-Fig. 7 is please referred to, as the old lattice of million kilowatt Spent Fuel Pool dilatation provided by the invention
Frame remove overturning technique a kind of specific implementation mode, grabbing claw 231 include with crawl mounting plate 22 be rotatablely connected rotation section,
And the crawl section extended to form by rotation section;Arc surface 2311 is set to rotation section;Crawl section have for 1 bottom plate of old screen work
Perpendicular that the inner wall of 11 hole for hoist 111 abuts and for being abutted with 1 side of the bottom plate 11 far from grid 12 of old screen work
Horizontal plane.Specifically, rotor plate is rotatablely connected with crawl mounting plate 22, from rotation section to the direction far from crawl mounting plate 22
The crawl section extended to form is for capturing 1 bottom plate 11 of old screen work;Specifically, the perpendicular on crawl section is used for and hole for hoist
111 inner wall, which abuts, realizes firmly grasping to 1 bottom plate 11 of old screen work;When grasping mechanism 23 is in promptly state, on crawl section
Horizontal plane is abutted with 1 side of the bottom plate 11 far from grid 12 of old screen work, namely old screen work 1 is taken away spentnuclear fuel in grasping mechanism 23
Horizontal plane when pond 17 on crawl section can drag the bottom plate 11 handled on old screen work 1.Perpendicular supports the inner wall of hole for hoist 111
It connects and 1 dragging for side of the bottom plate 11 far from grid 12 of old screen work is held in conjunction with horizontal plane, ensure grasping mechanism 23 to 1 bottom of old screen work
The crawl effect of plate 11.
Further, overturning technique is removed as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
A kind of specific implementation mode, the both ends of the inner wall of vertical loading board 21 are respectively equipped with the first guide ring and the second guide ring, mandril 241
One end be slidably connected with the first guide ring, the other end of mandril 241 is slidably connected with the second guide ring.Specifically, it is provided with
First guide ring and the second guide ring ensure mandril 241 along the axis of vertical loading board 21 reversely in 21 internal motion of vertical loading board
Stability.
Further, referring to Fig. 8, being torn open with old screen work as million kilowatt Spent Fuel Pool dilatation provided by the invention
Except a kind of specific implementation mode of overturning technique, lifting cross beam 3 includes cross-beam body 31, the lifting set on 31 middle part of cross-beam body
Plate 32, set on the fixed plate 33 at 31 both ends of cross-beam body and set on 33 both ends of fixed plate and for installing consolidating for vertical loading board 21
Determine slot 331;Lifting plate 32 offers hanging hole;Driving device include gantry body and set on gantry body and for
The matched suspension hook of hanging hole.Specifically, the hanging hole on plate 32 is lifted to be used to match with the suspension hook in the equipment such as crane.
Further, overturning technique is removed as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
A kind of specific implementation mode, step S700 specifically comprises the following steps:S710, the vertical lifting tool of installation:In old screen work 1
Several first connecting ropes 11 are set between top and vertical lifting tool, and the interconnecting piece of the first connecting rope 11 and old screen work 1 is old
The opposite both ends at the top of screen work 1;720, turning tool is installed:Returning face plate 9 is installed in the bottom of old screen work 1, returning face plate 9 wraps
Include the horizontal part 91 being connected with 1 bottom of old screen work, with 1 side plate of old screen work vertical portion 92 disposed in parallel and positioned at horizontal part
Curved portion 93 between 91 and vertical portion 92;S760, old screen work 1 is lifted to transporting equipment 12:Vertical lifting tool is by old lattice
Frame 1 is lifted to the preset height of the surface of the placement plate 121 of transporting equipment 12, removes first be located at right over returning face plate 9
Connecting rope 11 is so that old screen work 1 is deflected towards side;S770, the overturning of old screen work 1 is positioned over placement plate 121:In placement plate 121
Upper setting sleeper 122,1 slowly land of old screen work that vertical lifting tool will deflect so that the vertical portion 92 of returning face plate 9 with
Sleeper 122 abuts, and vertical lifting tool drives old 1 transverse shifting of screen work that old screen work 1 is slowly overturn to placement plate 121;
780, the old screen work 1 after overturning is transported workshop by transporting equipment 12.Specifically, using the first connecting rope 11 by vertical lifting tool
It is connected with the top of old screen work 1, to realize that vertical lifting tool operates the lifting of old screen work 1;It is installed in the bottom of old screen work 1
Returning face plate 9, returning face plate 9 with an edge of 1 bottom of old screen work for being connected namely the horizontal part of returning face plate 9 91 and old screen work 1
Bottom is connected, and vertical portion 92 and the side plate of old screen work 1 are arranged in parallel, the curved portion 93 between horizontal part 91 and vertical portion 92
Positioned at the intersection of the side plate and bottom plate 11 of old screen work 1;Remove the first connecting rope 11 being located at right over returning face plate 9 so that old
1 side of screen work is free state and then deflects, and sleeper 122 is arranged in placement plate 121, and vertical lifting tool will occur inclined
1 slowly land of old screen work turned so that the vertical portion 92 of returning face plate 9 is abutted with sleeper 122, and vertical lifting tool drives old screen work
1 transverse shifting makes old screen work 1 slowly overturn to placement plate 121, and the overturning of old screen work 1 is realized with this;Then transporting equipment
Old screen work 1 is transported workshop by 12.
Further, overturning technique is removed as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
A kind of specific implementation mode, further include following steps before step S760:730, support component 13 is installed:In old screen work 1
Bottom support component 13 is installed, support component 13 and returning face plate 9 both ends that be located at old screen work 1 opposite;S740, workshop is opened
First isolating door, transporting equipment 12 enter workshop in a manner of reversing;S750, the first isolating door is closed, opens loading hatch 15
Second isolating door.Specifically, the opposite side of returning face plate 9 is provided with the support component 13 with 9 same thickness of returning face plate, ensures
The bottom of old screen work 1 is still smooth after installing returning face plate 9, avoids old screen work 1 from placing unstable.Open the second isolating door it
It is preceding to close the first isolating door, it avoids radiation from being propagated outward by the first isolating door, ensures the safety of operation.
Further, 7 are please referred to Fig.1, as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
Remove overturning technique a kind of specific implementation mode, support component 13 include the first support plate 131 and with the first support plate
131 second support plates 132 disposed in parallel, the length of the first support plate 131 are different from the length of the second support plate 132.Specifically
Ground, the first support plate 131 and the second support plate 132 that support component 13 is detached by two pieces form, by the length of the first support plate 131
Degree is set as different from the length of the second support plate 132, when some interconnecting piece of 1 bottom of old screen work is due to corrosion etc.
It can not be in use, another replaceable interconnecting piece ensures first for connecting the first support plate 131 and the second support plate 132
It is identical that fagging 131 and the second support plate 132 stretch out the length of 1 bottom of old screen work after being connected with old screen work 1, is convenient for subsequent water
Flat lifting.
Further, 6- Figure 18 is please referred to Fig.1, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific implementation mode of overturning technique, and vertical lifting tool includes:Company for being connected with 1 top of old screen work
Connected components 8, connection component 8 includes two connecting plate 82 opposite and disposed in parallel, the riser 83 that is fixedly connected with connecting plate 82, with
And the first shackle 81 positioned at the both sides of connecting plate 82;Riser 83 is connect with 1 top bolt of old screen work;Hanger rod component 10, sunpender
Component 10 includes sunpender ontology 101, positioned at several second shackles 102 at 101 both ends of sunpender ontology and set on sunpender ontology
The mounting plate 103 at 101 both ends;The top of mounting plate 103 is equipped with third shackle 104, and one end of the first connecting rope 11 is unloaded with first
Button 81 is connected, and the other end of the first connecting rope 11 is connected with the second shackle 102;Gantry body with suspension hook, third shackle
The second connecting rope 14 is equipped between 104 and suspension hook.Specifically, gantry body, which hangs old screen work 1, prepares well 16 to one
The platform for determining height installs returning face plate 9 in the bottom of old screen work 1;Opening outermost first isolating door of workshop makes transport set
Standby 12 enter with posture of moving backward inside workshop and reach 0 meter of platform of loading hatch 15;The first isolating door is closed, loading hatch 15 is opened
The second isolating door old screen work 1 is hung to the surface of placement plate 121, each the first of side will be corresponded to positioned at returning face plate 9 at this time
Shackle 81 dismantle so that the old screen work 1 of the side be free state, and the first shackle 81 of the other side appoint so by hanger rod component 10 with
Connection component 8 is connected, and since its own gravity is far from deflecting, gantry body slowly puts down old screen work 1 to be made old screen work 1
The curved portion 93 for obtaining returning face plate 9 is contacted with placement plate 121, and along curved portion 93 overturning occurs for old screen work 1 until from vertical state
Become horizontality, and then complete overturning, the height of the old screen work 1 after overturning is less than the first isolating door, closes the second isolating door
And it opens the first isolating door and old screen work 1 is transported into workshop.Sleeper 122 is provided in drip tray, returning face plate 9 in switching process
The overturning convenient for old screen work 1 is abutted with sleeper 122.
Further, 6- Figure 18 is please referred to Fig.1, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific implementation mode of overturning technique, the axis pin of the axis of the axis pin of third shackle 104 and the second shackle 102
Axis it is vertical;The axis of the axis pin of first shackle 81 is parallel with the axis of axis pin of the second shackle 102.Specifically, it first unloads
Button 81 axis pin axis it is parallel with the axis of axis pin of the second shackle 102, gantry body work when the first connecting rope 11 not
It can occur to knot and reverse.
Further, 6- Figure 18 is please referred to Fig.1, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific implementation mode of overturning technique, and the first support plate 131 offers the first lifting circular hole 1312, second
Fagging 132 offers the second lifting circular hole 1322, and connecting plate 82 offers third lifting circular hole 821.Specifically, when old screen work 1
After overturning, lifts circular hole 1322 using lifting equipment connection the first lifting circular hole 1312, second and third lifts circular hole 821,
By old screen work 1, level is dragged to adjust horizontal position in placement plate 121 so that old screen work 1 is located at the surface of sleeper 122.
Further, 6- Figure 18 is please referred to Fig.1, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific implementation mode of overturning technique, and the first support plate 131 is equipped with the first connecting bracket 1311, the first support
Plate 131 is connect by the first connecting bracket 1311 with 1 bottom bolts of old screen work, and the second support plate 132 is equipped with the second connecting bracket
1321, the second support plate 132 is connect by the second connecting bracket 1321 with 1 bottom bolts of old screen work.Specifically, the first connection branch
Frame 1311, the second connecting bracket 1321 be inverted U-shaped structure, for bolt through in order to the first support plate 131 and the
The connection of two support plates 132 and 1 bottom of old screen work.
Further, 7 are please referred to Fig.1, as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
A kind of specific implementation mode of overturning technique is removed, horizontal part 91 is equipped with third connecting bracket 911, and horizontal part 91 is connected by third
Holder 911 is connect to connect with 1 bottom bolts of old screen work, the height of the first connecting bracket 1311, the height of the second connecting bracket 1321,
And the height of third connecting bracket 911 is identical.Specifically, third connecting bracket 911 is inverted U-shaped structure, for passing through for bolt
It wears and is connected with old screen work 1 in order to the horizontal part 91 of returning face plate 9.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and it is pair to be not
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (30)
1. the dilatation of million kilowatt Spent Fuel Pool removes overturning technique with old screen work, which is characterized in that include the following steps:
S200, measure Spent Fuel Pool in old screen work radiation level;
S300, it is pre-processed according to radiation level:
If radiation level is less than or equal to the first preset value, step S500 is directly executed;
If radiation level is more than the first preset value and is less than the second preset value, step S400 is first carried out, then execute step S500;
If radiation level is greater than or equal to the second preset value, step S400 is first carried out, then after repetition measurement executes step S400
Whether the radiation level of old screen work is less than the second preset value;If so, S500 is thened follow the steps, if it is not, then otherwise processed;
S400, old screen work is rinsed in Spent Fuel Pool;
S500, old screen work is hung out into Spent Fuel Pool to preparing well using hanging apparatus;
S700, the old screen work prepared in well is hung out and is overturn to transporting equipment.
2. million kilowatt Spent Fuel Pool dilatation according to claim 1 removes overturning technique, feature with old screen work
It is, the step S200 is specially:
It takes first measurement point to measure at the top of the grid of old screen work, often declines a pre-determined distance along the inner wall of grid
A measurement point is taken to measure.
3. million kilowatt Spent Fuel Pool dilatation according to claim 1 removes overturning technique, feature with old screen work
It is, further includes following steps before the step S200:
S100, the irradiated fuel assembly in other old screen works around old screen work to be removed is removed.
4. million kilowatt Spent Fuel Pool dilatation according to claim 1 removes overturning technique, feature with old screen work
It is, further includes following steps before the step S700:
S600, the hanging apparatus is taken out, is preparing to be rinsed old screen work in well.
5. million kilowatt Spent Fuel Pool dilatation according to claim 1 removes overturning technique, feature with old screen work
It is, first preset value is 2mSv/h, and second preset value is 10mSv/h.
6. million kilowatt Spent Fuel Pool dilatation according to claim 2 removes overturning technique, feature with old screen work
It is, the pre-determined distance is 1000 millimeters.
7. removing overturning work according to the old screen work of claim 1-6 any one of them million kilowatt Spent Fuel Pool dilatation
Skill, which is characterized in that the hanging apparatus includes:
For the matched grabbing assembly of hole for hoist with old screen work bottom plate, the lifting cross beam for installing the grabbing assembly,
And the driving device for driving the lifting cross beam movement;The grabbing assembly includes being fixedly connected with the lifting cross beam
And it is grabbed for the vertical loading board of hollow form, set on crawl mounting plate of the vertical loading board far from described lifting cross beam one end, set on described
Take at least one grasping mechanism of mounting plate and set on the inside of the vertical loading board and for driving the grasping mechanism to complete
The crawl driving mechanism of grasping movement.
8. million kilowatt Spent Fuel Pool dilatation according to claim 7 removes overturning technique, feature with old screen work
It is, the step S500 is specially:
S510, the driving device move in the horizontal direction, and will be lifted to old screen work set on the grabbing assembly of lifting cross beam
Surface;
S520, the driving device are moved in vertical direction, and the grabbing assembly in releasing orientation is stretched into old screen work
In grid, and the grasping mechanism is stretched into hole for hoist;
S530, the crawl driving mechanism drive the grasping mechanism to complete grasping movement;
S540, old screen work is hung out to Spent Fuel Pool to preparing well.
9. million kilowatt Spent Fuel Pool dilatation according to claim 8 removes overturning technique, feature with old screen work
It is, the grasping mechanism includes two grabbing claws being oppositely arranged, and each grabbing claw is rotated with the crawl mounting plate
Connection;The crawl driving mechanism includes for driving the jacking block that the grabbing claw rotates and the top being connected with the jacking block
Bar;Arc surface is all had on each grabbing claw, the jacking block is abutted with each arc surface.
10. million kilowatt Spent Fuel Pool dilatation according to claim 9 removes overturning technique, feature with old screen work
It is, further includes external drive mechanism for driving the mandril to be moved along the axis of the vertical loading board and set on described
Transmission mechanism between mandril and the external drive mechanism;The transmission mechanism includes with the mandril far from the jacking block
The vertical push rod that one end abuts;The external drive mechanism include long bar body and set on the end of the long bar body and
Push-down head for pushing the vertical push rod movement.
11. million kilowatt Spent Fuel Pool dilatation according to claim 10 removes overturning technique with old screen work, special
Sign is that the transmission mechanism further includes being set to rotation of the vertical push rod far from described mandril one end to push push rod, described
Vertical loading board offers sliding limit slot structure, and the rotation pushes push rod and limits slot structure and the vertical loading board by the sliding
It is slidably connected;The sliding limit slot structure includes level trough, is set to described level trough one end and along far from the grasping mechanism
The first vertical slots that direction extends and set on the level trough other end and along the extended far from the grasping mechanism direction
Two vertical slots;The length of first vertical slots be more than second vertical slots length, the push-down head offer for
The rotation pushes the matched rotation pushing slot of push rod, and resetting spring is equipped between the mandril and the vertical loading board.
12. million kilowatt Spent Fuel Pool dilatation according to claim 10 removes overturning technique with old screen work, special
Sign is that long bar body includes two or more connecting rods, the connecting shaft for connecting the adjacent connecting rod and the connection
The connected wire in the end of axis, the pin being connected with the one end of the wire far from the connecting shaft and described in being set to
Connecting rod and the mounting fixing parts for being used to install the wire;The connecting rod has been disposed radially so that the connecting shaft is passed through
The first through hole worn, the one end of the connecting shaft far from the wire offer for perforative second through-hole of the pin.
13. million kilowatt Spent Fuel Pool dilatation according to claim 12 removes overturning technique with old screen work, special
Sign is that mounting fixing parts are the installation sheet with third through-hole, and the wire runs through the third through-hole, the pin
Outer diameter is more than the internal diameter of the third through-hole;The connecting shaft is equipped with the annulus for being connected with the wire, the annulus
Outer diameter be less than the third through-hole internal diameter;The quantity of the first through hole is multiple, and the first through hole is located at the company
The both ends of extension bar, the outer diameter of described connecting rod one end are less than or equal to the internal diameter of the connecting rod other end.
14. million kilowatt Spent Fuel Pool dilatation according to claim 11 removes overturning technique with old screen work, special
Sign is that the described one end of long bar body far from the push-down head is equipped with rotating horizontal pole, and the 4th is offered in the long bar body
Through-hole, the rotating horizontal pole are detachably connected by the fourth hole and the long bar body.
15. million kilowatt Spent Fuel Pool dilatation according to claim 10 removes overturning technique with old screen work, special
Sign is that the outside of the long bar body is equipped with guide pad, and the guide pad is detachably connected by screw and the long bar body
It connects, the one end of the vertical loading board far from the grasping mechanism is equipped with conical pipe;The guide pad is polyethylene blocks, the guide pad
Outer diameter along bottom to top-direction gradually increases, and the outer diameter at the top of the guide pad is less than or equal to the interior of the vertical loading board
Diameter.
16. million kilowatt Spent Fuel Pool dilatation according to claim 11 removes overturning technique with old screen work, special
Sign is, further includes the supporting rack for installing the long bar body;Support frame as described above includes being used to support the long bar body
Support portion and fixed part with support portion one;The long bar body is equipped with and the matched branch of the support portion
Support part.
17. million kilowatt Spent Fuel Pool dilatation according to claim 16 removes overturning technique with old screen work, special
Sign is, the support portion offers support slot, and the support slot includes arc sections and the slot that is communicated with the arc sections
Mouthful;The support pendant includes the first support ring and the second support ring with first support ring one;Described first
The outer diameter of pushing out ring is less than the distance at the notch both ends, and the outer diameter of second support ring is more than the internal diameter of the arc sections.
18. million kilowatt Spent Fuel Pool dilatation according to claim 16 removes overturning technique with old screen work, special
Sign is, the fixed part include the tablet being connected with the support portion, set on described tablet the same side the first vertical plate and
Second vertical plate;There is gap, first vertical plate and described the between first vertical plate and second vertical plate
Two vertical plates are arranged in parallel, and first vertical plate is located at the side of second vertical plate far from the support portion, and described
One vertical plate is equipped with the screw being threadedly coupled with first vertical plate;The tablet is equipped with and suspension hook is matched hangs
Part, the hanging piece and first vertical plate both sides that be located at the tablet opposite.
19. million kilowatt Spent Fuel Pool dilatation according to claim 7 removes overturning technique, feature with old screen work
It is, the quantity of the grasping mechanism is two, and the crawl mounting plate is equipped with the mounting groove for installing the grabbing claw, institute
It states and is equipped with rotational pin between grabbing claw and the side wall of the mounting groove.
20. million kilowatt Spent Fuel Pool dilatation according to claim 9 removes overturning technique, feature with old screen work
It is, the grabbing claw includes being extended to form with the rotation section of the crawl mounting plate rotation connection and by the rotation section
Crawl section;The arc surface is set to the rotation section;The crawl section have for in the hole for hoist of old screen work bottom plate
The perpendicular that wall abuts and the horizontal plane for being abutted with old side of the screen work bottom plate far from grid.
21. million kilowatt Spent Fuel Pool dilatation according to claim 9 removes overturning technique, feature with old screen work
It is, the both ends of the inner wall of the vertical loading board are respectively equipped with the first guide ring and the second guide ring, one end of the mandril and institute
It states the first guide ring to be slidably connected, the other end of the mandril is slidably connected with second guide ring.
22. million kilowatt Spent Fuel Pool dilatation according to claim 9 removes overturning technique, feature with old screen work
It is, the lifting cross beam includes cross-beam body, the lifting plate in the middle part of the cross-beam body, is set to the cross-beam body two
The fixed plate at end and set on the fixed plate both ends and for installing the fixing groove of the vertical loading board;The lifting plate opens up
There is hanging hole;The driving device include gantry body and set on the gantry body and be used for and the hanging hole match
The suspension hook of conjunction.
23. million kilowatt Spent Fuel Pool dilatation according to claim 4 removes overturning technique, feature with old screen work
It is, the step S700 specifically comprises the following steps:
S710, the vertical lifting tool of installation:Several first connecting ropes are set between the top of old screen work and vertical lifting tool,
The interconnecting piece of first connecting rope and old screen work is the opposite both ends at the top of old screen work;
S720, installation turning tool:Returning face plate is installed in the bottom of old screen work, the returning face plate includes being connected with old screen work bottom
Horizontal part and old screen work side plate vertical portion disposed in parallel and the arc between the horizontal part and the vertical portion
Shape portion;
S760, old screen work is lifted to transporting equipment:The vertical lifting tool lifts old screen work to the placement of transporting equipment
The preset height of the surface of plate removes first connecting rope being located at right over the returning face plate and makes old screen work towards one
Lateral deviation turns;
S770, the overturning of old screen work is positioned over the placement plate:Sleeper, the vertical lifting tool are set in the placement plate
The old screen work slowly land that will be deflected so that the vertical portion of the returning face plate is abutted with the sleeper, described vertical
Lifting tool drives old screen work transverse shifting that old screen work is slowly overturn to the placement plate;
Old screen work after overturning is transported workshop by S780, the transporting equipment.
24. million kilowatt Spent Fuel Pool dilatation according to claim 23 removes overturning technique with old screen work, special
Sign is, further includes following steps before the step S760:
S730, installation support component:Support component is installed in the bottom of old screen work, the support component is located at the returning face plate
The opposite both ends of old screen work;
S740, the first isolating door for opening workshop, the transporting equipment enter workshop in a manner of moving backward;
S750, first isolating door is closed, opens the second isolating door of loading hatch.
25. million kilowatt Spent Fuel Pool dilatation according to claim 24 removes overturning technique with old screen work, special
Sign is, the support component include the first support plate and with first support plate the second support plate disposed in parallel, institute
The length for stating the first support plate is different from the length of the second support plate.
26. million kilowatt Spent Fuel Pool dilatation according to claim 23 removes overturning technique with old screen work, special
Sign is that the vertical lifting tool includes:
For with the connection component that is connected at the top of old screen work, the connection component include with respect to and two connecting plate disposed in parallel,
The riser being fixedly connected with the connecting plate and the first shackle positioned at the both sides of the connecting plate;The riser and old lattice
Top of the trellis is bolted;
Hanger rod component, the hanger rod component include sunpender ontology, positioned at sunpender ontology both ends several second shackles and
Mounting plate set on sunpender ontology both ends;The top of the mounting plate be equipped with third shackle, the one of first connecting rope
End is connected with first shackle, and the other end of first connecting rope is connected with second shackle;
Gantry body with suspension hook is equipped with the second connecting rope between the third shackle and the suspension hook.
27. million kilowatt Spent Fuel Pool dilatation according to claim 26 removes overturning technique with old screen work, special
Sign is that the axis of the axis pin of the third shackle is vertical with the axis of axis pin of the second shackle;
And/or the axis of the axis pin of first shackle is parallel with the axis of axis pin of the second shackle.
28. million kilowatt Spent Fuel Pool dilatation according to claim 25 removes overturning technique with old screen work, special
Sign is that first support plate offers the first lifting circular hole, and second support plate offers the second lifting circular hole, described
Connecting plate offers third lifting circular hole.
29. million kilowatt Spent Fuel Pool dilatation according to claim 25 removes overturning technique with old screen work, special
Sign is, first support plate is equipped with the first connecting bracket, first support plate by first connecting bracket with it is old
Screen work bottom bolts connect, and second support plate is equipped with the second connecting bracket, and second support plate connects by described second
Holder is connect to connect with old screen work bottom bolts.
30. million kilowatt Spent Fuel Pool dilatation according to claim 29 removes overturning technique with old screen work, special
Sign is that the horizontal part is equipped with third connecting bracket, and the horizontal part passes through the third connecting bracket and old screen work bottom
It is bolted, the height of first connecting bracket, the height of second connecting bracket and the third connecting bracket
It is highly identical.
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| CN111807207A (en) * | 2020-07-20 | 2020-10-23 | 中国核动力研究设计院 | Spent fuel storage grid underwater installation position measuring device and grid installation method |
| CN111816337A (en) * | 2020-07-20 | 2020-10-23 | 中国核动力研究设计院 | Precise underwater installation pushing device for spent fuel grillwork in narrow space of spent fuel pool |
| CN111824938A (en) * | 2020-07-20 | 2020-10-27 | 中国核动力研究设计院 | Spent fuel storage framework transporting and overturning device and mounting method |
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