CN108689299B - 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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- CN108689299B CN108689299B CN201810493561.8A CN201810493561A CN108689299B CN 108689299 B CN108689299 B CN 108689299B CN 201810493561 A CN201810493561 A CN 201810493561A CN 108689299 B CN108689299 B CN 108689299B
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- screen work
- old screen
- spent fuel
- plate
- fuel pool
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Classifications
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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
- B66C1/62—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: the radiation level for measuring 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 greater than the first preset value and 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 be greater than or equal to the second preset value, old screen work is rinsed in Spent Fuel Pool, then the old screen work of repetition measurement radiation level whether 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 all satisfied requirement, can not only realize and overturn after removing old screen work to transporting equipment, moreover it is possible to guarantee that the radiation level of old screen work can satisfy 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 technique
Spentnuclear fuel refers to through overshoot irradiation, 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 with the personnel for contacting them.Therefore via the weary combustion after the nuclear reactor reaction 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 subsequent post-processing to spentnuclear fuel
When technique.With domestic nuclear power be increasing 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, guarantee the normal production in nuclear power station.
When carrying out Spent Fuel Pool dilatation operation, it is necessary first to first remove the old screen work inside Spent Fuel Pool, In
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 emittance value needed for can transporting and carrying out the aftertreatment technology of subsequent 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, also brings great difficulty to entire work, 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.
Old screen work has several grids (irradiated fuel store unit) set on the bottom plate, bottom plate position corresponding with grid
With several holes for hoist for being matched with 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 will be transported again by isolating door after the overturning of old screen work.
Summary of the invention
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 from Spent Fuel Pool in the prior art to the old screen work of transporting equipment to meet default emission requirements
Problem.
To achieve this purpose, the present invention adopts the following technical scheme:
The dilatation of million kilowatt Spent Fuel Pool removes overturning technique with old screen work, includes the following steps:
S200, measurement 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, directly execution step S500；
If radiation level is greater than the first preset value and 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: first measuring the radiation level on 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 all satisfied 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 can satisfy the requirement of transportational process.
Detailed description of the invention
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 is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is million kilowatt Spent Fuel Pool dilatation old screen work dismounting overturning process flow in the embodiment of the present invention
Block diagram；
Fig. 2 is the structural schematic diagram of the workshop in the embodiment of the present invention with Spent Fuel Pool；
Fig. 3 is the structural schematic diagram of old screen work in the embodiment of the present invention；
Fig. 4 is the connection schematic diagram of grabbing assembly and lifting cross beam in the embodiment of the present invention；
Fig. 5 is that grabbing assembly protrudes 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 protrudes into top 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 old screen work of the 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 support frame in the embodiment of the present invention；
Figure 15 is the structural schematic diagram of support frame 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 in the embodiment of the present invention after the overturning of old screen work；
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 grabbed；23, grasping mechanism；231, grabbing claw；2311, circular arc
Face；232, rotational pin；24, driving mechanism is grabbed；241, mandril；242, jacking block；25, reset 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, support frame；61, support portion；
611, support slot；6111, arc sections；6112, notch；62, fixed part；621, plate；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 embodiment
In order to make the objectives, technical solutions, and advantages of the present invention 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.
Realization of the 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, measurement 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, directly execution step S500；
If radiation level is greater than the first preset value and 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, first measurement is located at the radiation level on the surface of the old screen work 1 in Spent Fuel Pool 17,
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 greater than the first preset value and less than the second preset value 10mSv/h, first in 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 old screen work 1 to reduce radiation level in Spent Fuel Pool 17, then
The radiation level of the old screen work 1 of repetition measurement, if the radiation level of repetition measurement utilizes hanging apparatus by old screen work 1 less than the second preset value
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
Row processing is specially to continue to rinse to lower radiation level until meeting the requirements, and can also be directly lifting 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 overturns after removing to the radiation level of the old screen work 1 of transporting equipment 12 and can satisfy 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 embodiment, step S200 specifically: first measurement point is taken to be surveyed at the top of the grid of old screen work 1
Amount, takes a measurement point to measure along the inner wall of grid one pre-determined distance of every decline.Specifically, every along the inner wall of grid
Declining a pre-determined distance takes a measurement point to measure, and guarantees the comprehensive of measurement, marks for radiating biggish part
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 embodiment, 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.By other around the old screen work 1 for needing to hang 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 embodiment, further include following steps before step S700: S600, take out hanging apparatus, prepare well 16
It is interior that old screen work 1 is rinsed.After hanging apparatus is by old screen work 1 lifting 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 embodiment, 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 embodiment of overturning technique, and hanging apparatus includes: for the hole for hoist 111 with old 1 bottom plate 11 of screen work
The grabbing assembly 2 matched, the lifting cross beam 3 for installing grabbing assembly 2 and the drive for driving lifting cross beam 3 mobile
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 grabs 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 manner set on bottom plate 11, grid 12 are hollow and for placing spentnuclear fuel, In
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 grabs old 1 bottom plate 11 of 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 by lifting cross beam 3 drive 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 protrudes into
Inside grid 12, the crawl driving mechanism 24 set on the inside of vertical loading board 21 drives grasping mechanism 23 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 in grasping mechanism 23 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 embodiment, step S500 specifically: 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 mobile in vertical direction, will be in releasing orientation
Grabbing assembly 2 protrudes into the grid of old screen work 1, and grasping mechanism 23 is protruded 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 embodiment of overturning technique, and grasping mechanism 23 includes two grabbing claws 231 being oppositely arranged, each to grab
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 in 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 and release process of grasping mechanism 23
Are as follows: for jacking block 242 when moving to the direction close to 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 respectively and is rotated,
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 passes through arc surface 2311 for 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 embodiment of overturning technique, further includes for driving mandril 241 to move 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 mandril 241 is abutted far from one end of jacking block 242；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 push vertical push rod 41 mobile.Specifically, long bar body 51 is pushed to drive
Push-down head 52 is mobile, 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 of 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 embodiment 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 by sliding limiting slot knot
Structure is slidably connected with vertical loading board 21；Sliding limit slot structure includes level trough 211, set on 211 one end of level trough and along far from grabbing
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 greater than the length of the second vertical slots 213, and push-down head 52 offers
For pushing the rotation pushing slot 521 that push rod 42 matches with rotation, reset spring is equipped between mandril 241 and vertical loading board 21
25.Specifically, the rotation that vertical push rod 41 is arranged in pushes the rotation pushing slot that push rod 42 is used for is arranged on push-down head 52
521 match, and rotation pushing slot 521 is set in rotation and pushes outside push rod 42, drive 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: pushing long bar body 51 to drive push-down head 52 mobile, push-down head 52 is mobile
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 moves 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 reset spring 25 are compressed), it rotates long bar body 51 and push-down head 52 is driven to rotate, rotation pushes push rod 42
As the rotation of push-down head 52 rotates the end that certain angle reaches the second vertical slots 213 along level trough 211, will grow at this time
Bar body 51 is moved along the direction far from vertical loading board 21, and reset spring 25 pushes vertical push rod 41 that rotation is driven to push 42 edge of push rod
The second vertical slots 213 move to second one end of vertical slots 213 far from level trough 211, at this time 213 pairs of the second vertical slots rotation
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: the rotation in the second vertical slots 213 also being pushed 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 reset spring 25 is so that rotation pushes 42 edge of push rod
The first vertical slots 212 move to first one end of vertical slots 212 far from level trough 211.Due to the length of the first vertical slots 212
The first vertical slots are moved to along the first vertical slots 212 greater than the length of the second vertical slots 213, therefore when rotation pushes push rod 42
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 motion to far from level trough 211 end when, jacking block 242 by grasping mechanism 23 be pushed in unclamp shape
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 motion to the end far from level trough 211,
Mandril 241 has moved 40 millimeters to the direction close to grasping mechanism 23 along the axis of vertical loading board 21, namely is arranged in mandril 241
End jacking block 242 with mandril 241 along vertical loading board 21 axis to close to grasping mechanism 23 direction moved 40 milli
Rice.The both ends of reset 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 as million kilowatt Spent Fuel Pool dilatation provided by the invention with old screen work
Except a kind of specific embodiment 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 the perforative first through hole 5111 of connecting shaft 512, and connecting shaft 512 is opened far from one end of wire 513
Equipped with for perforative second through-hole of pin 514.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 in the disassembly process of long bar body 51,513 pin 514 of wire for being easy to fall 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 Spent Fuel Pool 17 in disassembly process；In turn
It can satisfy and not have component in hoisting process and fall in Spent Fuel Pool 17.
Further, referring to Fig. 9, being torn open as million kilowatt Spent Fuel Pool dilatation provided by the invention with old screen work
Except a kind of specific embodiment 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 greater 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 be it is multiple, first through hole 5111 be 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 the process of part installation wire 513 are as follows: third through-hole of the wire 513 on installation sheet, due to 513 pin of wire
514 outer diameter is greater than the internal diameter of third through-hole, since the outer diameter of the thinner one end of connecting shaft 512 is greater 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, guarantees 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 as million kilowatt Spent Fuel Pool dilatation provided by the invention with old screen work
Except a kind of specific embodiment of overturning technique, long bar body 51 is equipped with rotating horizontal pole 53, stock far from one end of push-down head 52
Fourth hole is offered on ontology 51, rotating horizontal pole 53 is detachably connected by fourth hole with long bar body 51.Specifically, it pulls
Dynamic rotating horizontal pole 53 and then realization drive the long rotation of bar body 51, and rotating horizontal pole 53 is removable by fourth hole and long bar body 51
The rotating horizontal pole 53 for connecting and then realizing replacement different length is unloaded, the rotating horizontal pole 53 for replacing different length can provide different turn
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 embodiment, 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, vertical loading board 21 is equipped with conical pipe far from one end of grasping mechanism 23；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, Figure 14-Figure 15 is please referred to, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific embodiment of overturning technique, further includes the support frame 6 for installing long bar body 51；Support frame 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
The support pendant matched with support portion 61.Specifically, support frame 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 support frame 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, Figure 14-Figure 15 is please referred to, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific embodiment 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 greater than
The internal diameter of arc sections 6111.Specifically, long bar body 51 is placed in the process of support portion 61 are as follows: the 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 greater 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, Figure 14-Figure 15 is please referred to, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific embodiment of overturning technique, and fixed part 62 includes the plate 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 is gap, the first vertical plate 622 is arranged in parallel with the second vertical plate 623, and 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 plate 621
There is a hanging piece 6211 matched with suspension hook, hanging piece 6211 and the first vertical plate 622 two sides that be located at plate 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 embodiment 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 two namely four grabbing claws for the quantity of grasping mechanism 23
231 respectively correspond a hole for hoist 111；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 and release process of grasping mechanism 23 are as follows: jacking block
242 to the direction close to grasping mechanism 23 when 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 embodiment, 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 old 1 bottom plate of screen work
Perpendicular that the inner wall of 11 hole for hoist 111 abuts and for being abutted with old 1 bottom plate 11 of screen work far from the side of grid 12
Horizontal plane.Specifically, rotor plate and crawl mounting plate 22 are rotatablely connected, from rotation section to the direction far from crawl mounting plate 22
The crawl section extended to form is for grabbing old 1 bottom plate 11 of screen work；Specifically, the perpendicular on crawl section is used for and hole for hoist
111 inner wall, which abuts, realizes firmly grasping to old 1 bottom plate 11 of screen work；When grasping mechanism 23 is in promptly state, on crawl section
Horizontal plane is abutted with old 1 bottom plate 11 of screen work far from the side of grid 12, 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 old 1 dragging for side of the bottom plate 11 far from grid 12 of screen work is held in conjunction with horizontal plane, guarantee grasping mechanism 23 to old 1 bottom of 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 embodiment, 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 guarantee 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 as million kilowatt Spent Fuel Pool dilatation provided by the invention with old screen work
Except a kind of specific embodiment 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 be set to gantry body and for
The suspension hook that hanging hole matches.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 embodiment, 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 being installed in the bottom of old screen work 1, returning face plate 9 wraps
Include the horizontal part 91 being connected with old 1 bottom of screen work, with old 1 side plate of screen work vertical portion 92 disposed in parallel and positioned at horizontal part
Curved portion 93 between 91 and vertical portion 92；S760, by the lifting of old screen work 1 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 above returning face plate 9
Connecting rope 11 deflects old screen work 1 towards side；S770, the overturning of old screen work 1 is placed in 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 old 1 bottom of screen work for being connected namely the horizontal part 91 of returning face plate 9 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 side plate of old screen work 1 and the intersection of bottom plate 11；The first connecting rope 11 being located at right above returning face plate 9 is removed, 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, vertical lifting tool drives old screen work
1 transverse shifting overturns old screen work 1 slowly 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 embodiment, further include following steps before step S760: 730, install support component 13: 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 the same thickness of returning face plate 9, guarantees
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 propagating outward by the first isolating door, guarantees the safety of operation.
Further, Figure 17 is please referred to, as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
Remove overturning technique a kind of specific embodiment, 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 separated 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 old 1 bottom of screen work is due to corrosion etc.
When not being available, another replaceable interconnecting piece guarantees first for connecting the first support plate 131 and the second support plate 132
Fagging 131 and the second support plate 132 are convenient for subsequent water identical as the length of old 1 bottom of screen work is stretched out after the connection of old screen work 1
Flat lifting.
Further, Figure 16-Figure 18 is please referred to, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific embodiment of overturning technique, vertical lifting tool include: for the company that is connected at the top of old screen work 1
Connected components 8, connection component 8 includes two connecting plate 82 opposite and disposed in parallel, the vertical plate 83 that is fixedly connected with connecting plate 82, with
And the first shackle 81 positioned at the two sides of connecting plate 82；Vertical plate 83 is connect with old 1 top bolt of 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 sets transport
Standby 12 enter inside workshop with posture of moving backward 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 the corresponding side of returning face plate 9 will be located 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 self 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 old screen work 1 is flipped until from vertical state along curved portion 93
Become horizontality, and then complete overturning, the height of the old screen work 1 after overturning closes the second isolating door less than the first 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, Figure 16-Figure 18 is please referred to, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific embodiment of overturning technique, the pin shaft of the axis of the pin shaft of third shackle 104 and the second shackle 102
Axis it is vertical；The axis of the pin shaft of first shackle 81 is parallel with the axis of pin shaft of the second shackle 102.Specifically, it first unloads
Button 81 pin shaft axis it is parallel with the axis of pin shaft of the second shackle 102, gantry body work when the first connecting rope 11 not
It can occur to knot and reverse.
Further, Figure 16-Figure 18 is please referred to, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific embodiment of overturning technique, and the first support plate 131 offers the first lifting circular hole 1312, and 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, circular hole 1322 is lifted using lifting equipment connection the first lifting circular hole 1312, second and third lifts circular hole 821,
By old screen work 1, horizontal dragging is in placement plate 121 to adjust horizontal position, so that old screen work 1 is located at the surface of sleeper 122.
Further, Figure 16-Figure 18 is please referred to, as million kilowatt Spent Fuel Pool dilatation provided by the invention with old
Screen work removes a kind of specific embodiment 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 old 1 bottom bolts of 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 old 1 bottom bolts of 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 old 1 bottom of screen work.
Further, Figure 17 is please referred to, as the old screen work of million kilowatt Spent Fuel Pool dilatation provided by the invention
A kind of specific embodiment of overturning technique is removed, horizontal part 91 is equipped with third connecting bracket 911, and horizontal part 91 is connected by third
Bracket 911 is connect to connect with old 1 bottom bolts of 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 in order to which the horizontal part 91 of returning face plate 9 is connected with old screen work 1.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
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
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (30)
1. the dilatation of million kilowatt Spent Fuel Pool removes overturning technique with old screen work, which comprises the steps of:
S200, measurement 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, directly execution step S500；
If radiation level is greater than the first preset value and 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 specifically:
First measurement point is taken to measure at the top of the grid of old screen work, along the inner wall of grid one pre-determined distance of every decline
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. million kilowatt Spent Fuel Pool dilatation according to claim 1-6 removes overturning work with old screen work
Skill, which is characterized in that the hanging apparatus includes:
Grabbing assembly for being matched with the hole for hoist of old screen work bottom plate, the lifting cross beam for installing the grabbing assembly,
And the driving device for driving the lifting cross beam mobile；The grabbing assembly includes being fixedly connected with the lifting cross beam
And it is grabbed for the vertical loading board of hollow form, the crawl mounting plate set on the vertical loading board far from described lifting cross beam one end, set on described
Take mounting plate at least one grasping mechanism and set on the vertical loading board inside 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 specifically:
S510, the driving device move in the horizontal direction, and the grabbing assembly for being set to lifting cross beam is lifted to old screen work
Surface；
S520, the driving device are mobile in vertical direction, and the grabbing assembly in releasing orientation is protruded into old screen work
In grid, and the grasping mechanism is protruded 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 the top for driving the jacking block of the grabbing claw rotation and 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 move along the axis of the vertical loading board and be set to 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 long bar body end and
Push-down head for pushing the vertical push rod mobile.
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 pushing push rod far from the rotation of described mandril one end set on the vertical 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 greater than second vertical slots length, the push-down head offer for
The rotation pushes the rotation pushing slot that push rod matches, and reset 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 wire far from one end of the connecting shaft and described in
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 connecting shaft are offered far from one end of the wire 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 greater 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 be it is multiple, 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 long bar body is equipped with rotating horizontal pole far from one end of the push-down head, offers the 4th 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 with the long bar body
It connects, the vertical loading board is equipped with conical pipe far from one end of the grasping mechanism；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 support frame 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 the support portion one；The long bar body is equipped with the branch matched with 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 communicates with the arc sections
Mouthful；The support pendant includes the first support ring and the second support ring with the 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 greater 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 plate being connected with the support portion, set on described plate 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 plate is hung equipped with what is matched with suspension hook
Part, the hanging piece and first vertical plate two sides that be located at the plate opposite.
19. million kilowatt Spent Fuel Pool dilatation according to claim 9 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 extending 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 screen work bottom plate far from the side of 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 board ends and for installing the fixing groove of the vertical loading board；The lifting plate opens up
There is hanging hole；The driving device includes gantry body and is set to the gantry body and is used to match with the hanging hole
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: being arranged several first connecting ropes between the top and vertical lifting tool of old screen work,
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, lift old screen work 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 above the returning face plate and makes old screen work towards one
Lateral deviation turns；
S770, the overturning of old screen work is placed in the placement plate: sleeper, the vertical lifting tool is 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, it is 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 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 vertical plate being fixedly connected with the connecting plate and the first shackle positioned at the two sides of the connecting plate；The vertical plate 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 pin shaft of the third shackle is vertical with the axis of pin shaft of second shackle；
And/or the axis of the pin shaft of first shackle is parallel with the axis of pin shaft of 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
The connection of screen work bottom bolts, second support plate are equipped with the second connecting bracket, and second support plate connects by described second
Bracket 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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| CN201810493561.8A CN108689299B (en) | 2018-05-22 | 2018-05-22 | The dilatation of million kilowatt Spent Fuel Pool removes overturning technique with old screen work |
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| CN201810493561.8A CN108689299B (en) | 2018-05-22 | 2018-05-22 | The dilatation of million kilowatt Spent Fuel Pool removes overturning technique with old screen work |
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Families Citing this family (3)
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| 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 |
| CN111807207B (en) * | 2020-07-20 | 2022-04-26 | 中国核动力研究设计院 | Spent fuel storage grid underwater installation position measuring device and grid installation method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2907324C2 (en) * | 1979-02-24 | 1982-10-14 | Brown Boveri Reaktor GmbH, 6800 Mannheim | Device for the safe transport of loads inside and above water-filled fuel storage pools |
| JPH077093B2 (en) * | 1989-03-13 | 1995-01-30 | 原子燃料工業株式会社 | Combustible poison rod assembly processing device |
| JP2000508426A (en) * | 1996-04-12 | 2000-07-04 | シーメンス アクチエンゲゼルシヤフト | How to place individual irradiated reactor fuel elements into the canister |
| CN1323405C (en) * | 2004-12-16 | 2007-06-27 | 中国核动力研究设计院 | Material changing, loading and unloading process flow for fuel assembly of straight-moving nuclear reactor |
| JP6125343B2 (en) * | 2013-06-20 | 2017-05-10 | 三菱重工業株式会社 | Radioactive substance storage container transfer method, radioactive substance storage container suspension device, and radioactive substance storage container |
| CN105304150B (en) * | 2015-09-30 | 2017-05-17 | 大亚湾核电运营管理有限责任公司 | Radiation protective control method for repairing damaged spent fuel assembly of mega-kilowatt nuclear power plant |
| CN106229020A (en) * | 2016-08-26 | 2016-12-14 | 上海核工程研究设计院 | A kind of Spent Fuel Pool expansion method |
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