CN207572074U - The patch system of irradiated fuel store container lead body shielded layer pouring defect - Google Patents
The patch system of irradiated fuel store container lead body shielded layer pouring defect Download PDFInfo
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- CN207572074U CN207572074U CN201721341915.4U CN201721341915U CN207572074U CN 207572074 U CN207572074 U CN 207572074U CN 201721341915 U CN201721341915 U CN 201721341915U CN 207572074 U CN207572074 U CN 207572074U
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- inner cylinder
- lead
- pouring defect
- lead body
- outer barrel
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Abstract
The utility model is related to a kind of patch systems of irradiated fuel store container lead body shielded layer pouring defect, pouring defect position can be determined by radioactive test detection, then it is heated layer by layer downwards from sprue gate by being set on the internal heat in inner cylinder and the external heating device outside outer barrel and the lead weight in shielding cavity is melt into lead liquid, external heating device and internal heat are finally moved to pouring defect position and heated perimeter are expanded to pouring defect position with up to the region of riser position, so that the lead body at pouring defect more than position to riser is remelted into lead liquid；Then external heating device and bottom-up the heating plate for closing internal heat corresponding position are promoted again bottom-uply, externally cylinder body outer wall is cooled down on cooling device bottom-up ground, so that the lead liquid in shielding cavity solidifies and pouring defect is eliminated in process of setting again again.
Description
Technical field
The utility model is related to a kind of patch systems and method of irradiated fuel store container lead body shielded layer pouring defect, belong to
In a kind of hold-up vessel and its manufacturing process for being used to manufacture radioactive waste.
Background technology
The spentnuclear fuel for unloading out from nuclear power plant reactor has high radioactivity, at present in the world for the place of the spentnuclear fuel
Reason mode is mainly interim storage, waits for the post processing to spentnuclear fuel.In the world for there are two types of the modes of interim storage：It is outdoor
The dry storage of placement and the wet type storage being stored in boron pond.
The method of spent fuel dry-type storage will be using hold-up vessel storage of spent fuel, and hold-up vessel needs that there is shielding to penetrate
The shielded layer of line, generally using lead as shielded layer, the effective thickness 102.5mm of shielded layer, shielding cavity thickness is
104.5mm.In order to ensure the shield effectiveness of lead screen layer, it is necessary to use the filling lead for being suitable for filling lead for spentnuclear fuel cask flask
System and method, to ensure to fill lead quality.But it does not ensure that and fills lead quality all qualifications, sometimes will appear and fill lead quality not
Qualified product, irradiated fuel store container involve great expense, if will directly fill the underproof product rejection of lead casting quality, damage
It loses huge.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of irradiated fuel store containers
The patch system and method for lead body shielded layer pouring defect can eliminate the pouring defect of hold-up vessel lead body shielded layer.
To achieve the above object, the utility model provides a kind of repairing for irradiated fuel store container lead body shielded layer pouring defect
Complement system, the semi-finished articles of the hold-up vessel include inner cylinder and the outer barrel being sleeved on the outside of inner cylinder, inner cylinder upper and lower two
End opening has the shielding cavity of annular between inner cylinder and outer barrel, shielding cavity upper end, which has, fills lead mouth, has in shielding cavity solidifying
Solid lead body shielded layer；Further include supporting tool, cooling device, external heating device, internal heat and temperature measuring equipment；Institute
Supporting tool is stated for supporting inner cylinder inner wall to prevent inner cylinder temperature distortion in the inner cylinder；The cooling device is set
On the outside of outer barrel；The external heating device is set on the outside of outer barrel to heat outer barrel, the internal heat
To heat inner cylinder on the inside of inner cylinder, external heating device is connect with derricking gear；The temperature measuring equipment includes being set on
Thermometric galvanic couple on the inner wall of inner cylinder, the thermometric galvanic couple on outer barrel outer wall and moving up and down at riser
Packaged type thermometric galvanic couple.
As described above, the utility model is related to a kind of irradiated fuel store container lead body shielded layer pouring defect repairing system
System, has the advantages that：After the semi-finished articles of hold-up vessel fill lead, the semi-finished articles of hold-up vessel can be put
Penetrating property testing inspection is to determine to fill whether lead casting quality is qualified, if the semi-finished articles of hold-up vessel fill lead casting quality and do not conform to
Lattice can determine pouring defect position by radioactive test detection, then be heated by the inside being set in inner cylinder
Device and the external heating device outside outer barrel heat downwards from sprue gate and layer by layer by the lead bodies in shielding cavity
Remelting into lead liquid, external heating device and internal heat is finally moved to pouring defect position and by heated perimeter
Pouring defect position is expanded to up to the region of riser position, so that the lead body at pouring defect more than position to riser
It is remelted into lead liquid；Then external heating device is promoted again bottom-uply and bottom-up closes internal heat pair
The heating plate of position is answered, externally cylinder body outer wall is cooled down on cooling device bottom-up ground, so that the lead liquid in shielding cavity
Again it solidifies.In this way, the lead weight of pouring defect position is melt into lead liquid, cast can be finally eliminated in process of setting again and is lacked
It falls into.It can be seen that the patch system and method for the irradiated fuel store container lead body shielded layer pouring defect of the utility model, it can
The pouring defect of hold-up vessel lead body shielded layer is eliminated, so as to save the manufacture cost of hold-up vessel, operational method is simple, operation
It is convenient.
Preferably, the packaged type thermometric galvanic couple is equipped with clump weight.Larger, packaged type thermometric is spent since lead is liquid-tight
Galvanic couple is difficult to by the buoyancy of lead liquid, and clump weight can make packaged type thermometric galvanic couple overcome the buoyancy of lead liquid and sink
To shielding cavity bottom to detect the temperature of shielding cavity bottom.
Preferably, control device, the cooling device, external heating device, internal heat and thermometric dress are further included
It puts and is connect with control device.By control device can according to the temperature data that temperature measuring equipment measures control cooling device,
External heating device, internal heat carry out operation so that whole operation process realizes automation.
Preferably, the supporting tool includes multi-layer circular support plate；Each support plate is put together by two semi-discs.
Since inner cylinder axial height is higher, so needing multiple support plates, to inner tube wall, axially distinct position is supported so that interior
Cylinder will not deform when heated.Support plate is put together by two semi-discs, is installed convenient for operating personnel.
Correspondingly, the utility model also provides a kind of repairing side of irradiated fuel store container lead body shielded layer pouring defect
Method is poured into a mould using the irradiated fuel store container lead body shielded layer described in above-mentioned technical proposal or its any preferred technical solution and lacked
Sunken patch system carries out operation, including following job step：
1) radioactive test detection is carried out to the semi-finished articles of the hold-up vessel, determines pouring defect according to testing result
Position；
2) external heating device and internal heat simultaneously heat lead body at riser, and lead weight is melt at riser
After lead liquid, external heating device and internal heat move down certain distance and heated perimeter are expanded to riser with bottom
It puts, so that the lead body below riser at position is also remelted into lead liquid；
3) external heating device and internal heat are finally moved to pouring defect position and by heated perimeters
Pouring defect position is expanded to up to the region of riser position, so that the lead body at pouring defect more than position to riser
It is remelted into lead liquid；
4) the packaged type thermometric galvanic couple is moved down as lead body is fused into lead liquid；
5) external heating device is above carried to certain distance so as to stop to the pouring defect position to external heating device
Outer barrel heating between lower end, and internal heat is simultaneously closed off under the pouring defect position to external heating device
The heating plate in region between end；
6) opening the bottom-up ground of cooling device, externally cylinder body outer wall is cooled down, so that the lead liquid weight in shielding cavity
New solidification；
7) continue above to carry external heating device, simultaneously close off internal heat in the pouring defect position to outside
The heating plate in region between heating unit lower end, to the pouring defect position to the outer barrel between external heating device lower end
Region is cooled down, finally so that lead liquid solidifies again；
8) as lead liquid solidifies again and moves up the packaged type thermometric galvanic couple.
A kind of method for repairing and mending of irradiated fuel store container lead body shielded layer pouring defect of the utility model has upper certainly
The advantageous effect of the patch system of the irradiated fuel store container lead body shielded layer pouring defect of the utility model is stated, it is no longer superfluous herein
It states.
Preferably, in the step 2) and step 3), the lead body in the shielding cavity be heated to 480~500 DEG C and
It is fused into lead liquid.In this temperature range, it can either ensure that lead liquid fully melts, additionally it is possible to ensure that inner cylinder or outer barrel are unlikely to
Heated high-temperature and generating material structure property changes.
Preferably, in the step 2) and step 3), the inner wall of the inner cylinder is with the heating speed of 100~150 DEG C/h
Rate is heated to 480~500 DEG C.In this way, inner cylinder is unlikely to heated high-temperature and generating material structure property becomes
Change, and the material structure performance of inner cylinder will not be influenced because the rate of heat addition is excessive.
Preferably, in the step 8), observation is located at the variation of the packaged type thermometric galvanic couple measured temperature in lead liquid,
When packaged type thermometric galvanic couple measured temperature is at 350~360 DEG C, the packaged type thermometric galvanic couple measured temperature is above carried
150~200mm.The fusing point of lead is about 327 DEG C, in this way, before the fusing point close to lead, the packaged type thermometric electricity in lead liquid
It is carried in idol and is set in lead liquid and can not move to prevent packaged type thermometric galvanic couple, packaged type thermometric galvanic couple above carries every time
150~200mm can ensure the gradual transition of the bottom-up temperature of lead liquid, prevent temperature jump and so that lead liquid when solidifying it is cast-in-place
Note defect.
Preferably, heat preservation 6 hours after the lead body in the shielding cavity is heated to 480~500 DEG C.In such manner, it is possible to it protects
Lead body in card shielding cavity is fully melted, and fully eliminates pouring defect.
Preferably, it in the step 6), observes outside thermometric galvanic couple and outer barrel on the inner cylinder inner wall of same position
The temperature change of thermometric galvanic couple on wall, when the thermometric galvanic couple on the inner cylinder inner wall of the same position and on outer barrel outer wall
When measured temperature is below 200 DEG C, cooling device stopping cools down the outer barrel of this position.When the inner cylinder of same position
When thermometric galvanic couple measured temperature on inner wall and on outer barrel outer wall is below 200 DEG C, the lead liquid at this position is fully solidifying
Gu, it is possible to stop cooling down outer barrel.
Preferably, in the step 6), observation cooling device is cooled down outside inner cylinder inner wall and outer barrel at position
The temperature change of thermometric galvanic couple on wall, when the thermometric galvanic couple on the inner cylinder inner wall of the cooling position and on outer barrel outer wall
Measured temperature in 2 minutes ascending temperature be less than 10 DEG C when, cooling device is above carried so that cooling down position moves up 150~200mm.
When it is described cooling position inner cylinder inner wall on and outer barrel outer wall on thermometric galvanic couple measured temperature in 2 minutes ascending temperature
During less than 10 DEG C, cooling device can stop that the cooling position is continued to cool down, and be carried on cooling device and on the cooling position
The lead liquid of side is cooled down so that lead liquid solidifies.
Preferably, starting heating location can ensure at pouring defect in this way apart from 100 millimeters of pouring defect position or more
Lead body fully melted and eliminate pouring defect.
Description of the drawings
Fig. 1 is shown as the entirety of the patch system of the irradiated fuel store container lead body shielded layer pouring defect of the utility model
Structure diagram；
Fig. 2 is shown as the part of the patch system of the irradiated fuel store container lead body shielded layer pouring defect of the utility model
Structure diagram.
Component label instructions
The 7 lead body shielded layer of semi-finished articles of 1 hold-up vessel
2 inner cylinder, 8 supporting tool
3 outer barrel, 9 support plate
4 shielding cavity, 10 internal heat
5 fill 11 external heating device of lead mouth
6 riser, 12 control device
Specific embodiment
Illustrate the embodiment of the utility model by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only specification to be coordinated to be taken off
The content shown so that those skilled in the art understands and reads, is not limited to the enforceable restriction item of the utility model
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of the utility model can be generated and the purpose that can reach, should all still it fall in the revealed technology of the utility model
In the range of Rong get Neng is covered.It is meanwhile cited such as " on ", " under ", "left", "right", " centre " and " one " in this specification
Deng term, be merely convenient to narration understand rather than to limit the enforceable range of the utility model, relativeness
It is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the utility model.
As depicted in figs. 1 and 2, the repairing system of the irradiated fuel store container lead body shielded layer pouring defect of the utility model
System, the semi-finished articles 1 of the hold-up vessel include inner cylinder 2 and are sleeved on the outer barrel 3 in 2 outside of inner cylinder, and inner cylinder is two about 2
End opening has the shielding cavity 4 of annular between inner cylinder 2 and outer barrel 3,4 upper end of shielding cavity, which has, fills lead mouth 5, in shielding cavity 4
Lead body shielded layer 7 with solidification；Further include supporting tool 8, cooling device (not shown), external heating device 11, interior
Portion's heating unit 10 and temperature measuring equipment；The supporting tool 8, which is used to be mounted in inner cylinder 2, supports 2 inner wall of inner cylinder to prevent
2 temperature distortion of inner cylinder；The cooling device is set on 3 outside of outer barrel；The external heating device 11 is set on the outer of outer barrel 3
To heat outer barrel 3, the internal heat 10 is set on 2 inside of inner cylinder to heat inner cylinder 2, outside heating dress for side
11 are put to connect with derricking gear (not shown)；The temperature measuring equipment include set on inner cylinder 2 inner wall on thermometric galvanic couple,
Thermometric galvanic couple on 3 outer wall of outer barrel and the packaged type thermometric galvanic couple moving up and down at riser 6.
After the semi-finished articles 1 of hold-up vessel fill lead, radioactive test inspection can be carried out to the semi-finished articles 1 of hold-up vessel
It surveys to determine to fill whether lead casting quality is qualified, if the filling lead casting quality of semi-finished articles 1 of hold-up vessel is unqualified, passes through radiation
Property testing inspection can determine pouring defect position, then by the internal heat 10 that is set in inner cylinder 2 and set
External heating device 11 outside outer barrel 3 from sprue gate heats downwards and melts the lead weight in shielding cavity 4 layer by layer
Into lead liquid, external heating device 11 and internal heat 10 are finally moved to pouring defect position and by heated perimeters
Pouring defect position is expanded to up to the region of 6 position of riser, so that the lead at pouring defect more than position to riser 6
Body is remelted into lead liquid；Then external heating device 11 is promoted again bottom-uply and bottom-up closes internal heating dress
The heating plate of 10 corresponding positions is put, cooling device bottom-uply cools down 3 outer wall of outer barrel, so that shielding cavity 4
In lead liquid solidify again.In this way, the lead weight of pouring defect position is melt into lead liquid, can finally disappear in process of setting again
Except pouring defect.It can be seen that the patch system of the irradiated fuel store container lead body shielded layer pouring defect of the utility model and
Method can eliminate the pouring defect of hold-up vessel lead body shielded layer 7, so as to save the manufacture cost of hold-up vessel, operator
Method is simple, easy to operate.
In the patch system of the irradiated fuel store container lead body shielded layer pouring defect of the utility model, in shielding cavity 4
Lead body be fused into after lead liquid, packaged type thermometric galvanic couple be inserted into lead liquid in detect the temperature of lead liquid, since lead is liquid-tight
Spend larger, packaged type thermometric galvanic couple is difficult to by the buoyancy of lead liquid, it is preferable that on the packaged type thermometric galvanic couple
Equipped with clump weight, clump weight can make packaged type thermometric galvanic couple overcome the buoyancy of lead liquid and sink down into 4 bottom of shielding cavity to examine
Survey the temperature of 4 bottom of shielding cavity.
In order to easily and efficiently control the irradiated fuel store container lead body shielded layer pouring defect of the utility model
Patch system, it is preferable that further include control device 12, the cooling device, external heating device 11,10 and of internal heat
Temperature measuring equipment is connect with control device 12.It can be controlled by control device 12 according to the temperature data that temperature measuring equipment measures
Cooling device, external heating device 11, internal heat 10 carry out operation so that whole operation process realizes automation.
In the patch system of the irradiated fuel store container lead body shielded layer pouring defect of the utility model, as a kind of excellent
The embodiment of choosing, the supporting tool 8 include multi-layer circular support plate 9；Each support plate 9 by two semi-disc splits and
Into.Since 2 axial height of inner cylinder is higher, so needing multiple support plates 9, to inner tube wall, axially distinct position is supported, and is made
Inner cylinder 2 will not deform when heated.Support plate 9 is put together by two semi-discs, is installed convenient for operating personnel.
Correspondingly, the utility model also provides a kind of repairing side of irradiated fuel store container lead body shielded layer pouring defect
Method is poured into a mould using the irradiated fuel store container lead body shielded layer described in above-mentioned technical proposal or its any preferred technical solution and lacked
Sunken patch system carries out operation, including following job step：
1) radioactive test detection is carried out to the semi-finished articles 1 of the hold-up vessel, determines that cast lacks according to testing result
Fall into position；
2) external heating device 11 and internal heat 10 simultaneously heat lead body at riser 6, lead body at riser 6
Into after lead liquid, external heating device 11 and internal heat 10 move down certain distance and are expanded to heated perimeter for remelting
Riser position below 6, so that lead body of the riser below 6 at position is also remelted into lead liquid；
3) external heating device 11 and internal heat 10 are finally moved to pouring defect position and will heat
Range is expanded to pouring defect position with up to the region of 6 position of riser, so that at pouring defect more than position to riser 6
Lead body be remelted into lead liquid；
4) the packaged type thermometric galvanic couple is moved down as lead body is fused into lead liquid；
5) external heating device 11 is above carried into certain distance so as to stop to the pouring defect position to outside heating dress
The outer barrel 3 put between 11 lower ends heats, and simultaneously closes off internal heat 10 and add in the pouring defect position to outside
The heating plate in region between 11 lower end of thermal；
6) it opens cooling device bottom-uply to cool down 3 outer wall of outer barrel, so that the lead liquid in shielding cavity 4
Again it solidifies；
7) continue above to carry external heating device 11, simultaneously close off internal heat 10 in the pouring defect position extremely
The heating plate in region between 11 lower end of external heating device, to the pouring defect position between 11 lower end of external heating device
3 region of outer barrel cooled down, finally so that lead liquid solidify again；
8) as lead liquid solidifies again and moves up the packaged type thermometric galvanic couple.
A kind of method for repairing and mending of irradiated fuel store container lead body shielded layer pouring defect of the utility model has upper certainly
The advantageous effect of the patch system of the irradiated fuel store container lead body shielded layer pouring defect of the utility model is stated, it is no longer superfluous herein
It states.
It is described in the step 2) and step 3) in order to which the lead body ensured in shielding cavity 4 is fully fused into lead liquid
Lead body in shielding cavity 4 is heated to 480~500 DEG C and is fused into lead liquid.In this temperature range, it can either ensure that lead liquid is abundant
Fusing, additionally it is possible to ensure inner cylinder 2 or outer barrel 3 is unlikely to heated high-temperature and generating material structure property becomes
Change.Preferably, heat preservation 6 hours after the lead body in the shielding cavity 4 is heated to 480~500 DEG C.In such manner, it is possible to ensure to shield
The lead body covered in chamber 4 is fully melted, and fully eliminates pouring defect.
The cylinder of hold-up vessel heats up and influences material property too quickly in order to prevent, it is preferable that in the step 2) and
In step 3), the inner wall of the inner cylinder 2 is heated to 480~500 DEG C with the heating rate of 100~150 DEG C/h.It is in this way, interior
Cylinder 2 is unlikely to heated high-temperature and generating material structure property changes, and will not be excessive because of the rate of heat addition
And influence the material structure performance of inner cylinder 2.
When packaged type thermometric galvanic couple is above carried, need to hold inning, if too early by packaged type thermometric galvanic couple
It above carries, is then unable to monitor lead liquid temperature, if after carrying packaged type thermometric galvanic couple, packaged type thermometric galvanic couple at night
It may be difficult to move together with the lead liquid knot of solidification；Preferably, in the step 8), observation be located at lead liquid in can
The variation of mobile thermometric galvanic couple measured temperature, when packaged type thermometric galvanic couple measured temperature is at 350~360 DEG C, by described in
Packaged type thermometric galvanic couple measured temperature above carries 150~200mm.The fusing point of lead is about 327 DEG C, in this way, in the fusing point close to lead
Before, the packaged type thermometric galvanic couple in lead liquid is above carried and is set in lead liquid and can not move to prevent packaged type thermometric galvanic couple
Dynamic, packaged type thermometric galvanic couple above carries 150~200mm every time can ensure the gradual transition of the bottom-up temperature of lead liquid, prevent temperature
Degree is mutated and causes pouring defect occur during the solidification of lead liquid.
As a preferred embodiment, in the step 6), the survey on 2 inner wall of inner cylinder of same position is observed
The temperature change of thermometric galvanic couple on 3 outer wall of warm galvanic couple and outer barrel, when on 2 inner wall of inner cylinder of the same position and outer barrel
When thermometric galvanic couple measured temperature on 3 outer wall of body is below 200 DEG C, cooling device stopping carries out the outer barrel 3 of this position cold
But.When the thermometric galvanic couple measured temperature on 2 inner wall of inner cylinder of same position and on 3 outer wall of outer barrel is below 200 DEG C, this
Lead liquid at position fully solidifies, it is possible to stop cooling down outer barrel 3.
As a preferred embodiment, in the step 6), observation cooling device cools down the inner cylinder at position
The temperature change of thermometric galvanic couple on 3 outer wall of 2 inner wall of body and outer barrel, when on 2 inner wall of inner cylinder of the cooling position and outer
Thermometric galvanic couple measured temperature on 3 outer wall of cylinder is above carried cooling device so that cold when ascending temperature is less than 10 DEG C in 2 minutes
But position moves up 150~200mm.When the thermometric galvanic couple institute on 2 inner wall of inner cylinder of the cooling position and on 3 outer wall of outer barrel
Testing temperature in 2 minutes ascending temperature be less than 10 DEG C when, cooling device can stop that the cooling position is continued to cool down, cooling dress
It puts and carries and the lead liquid above the cooling position is cooled down so that lead liquid solidifies.Preferably, starting heating location distance is poured
100 millimeters of defective locations or more are noted, can ensure that the lead body at pouring defect is fully melted and eliminates pouring defect in this way.
Below to a kind of tool of the method for repairing and mending of the irradiated fuel store container lead body shielded layer pouring defect of the utility model
Body embodiment does illustrative explanation.
First, preparation
The 1st, supporting tool 8 and thermometric galvanic couple in inner cylinder 2 are installed：According to thermometric galvanic couple layout drawing, first in 2 inner wall of inner cylinder
Spot welding thermometric galvanic couple seat, then internal support plate 9 is installed；The support plate 9 of semicircle dish type is lifted up into inner cylinder 2 using driving, inside
Portion is installed, and after location determination, is held round two semi-discs with voussoir, is fixed on container inner wall.9 points of voussoir and support plate
Solid welding is determined.After adjacent two layers support plate 9 fixes, upper and lower two layers of support plate 9 is connected together with bolt.As stated above by
Layer installation, by inner cylinder 2 thermometric galvanic couple seat, all installation is complete for support plate 9.The welding of each layer of thermometric galvanic couple seat and branch
The installation of support plate 9 can be carried out at the same time, it is ensured that whole to install simultaneously from bottom to top.Until the thermometric electricity at perfusing hole
Even seat spot welding is completed, and installation is complete for last layer of support plate 9, and installation personnel checks its fastness, prevents any loosening occur, most
Later layer support plate 9 can spot weld cylinder inboard wall.Shielding cavity 4 is cleared up, shielding cavity 4 is purged using pressure-air, it
Shielding cavity 4 is checked comprehensively with flashlight or endoscope afterwards, prevents shielding cavity 4 from impurity occur, influences to fill lead effect.
The 2nd, internal heat 10 in inner cylinder 2 is installed：Installation first layer heating plate, heating plate Three kinds of hors d'oeuvres, composition one are whole
Circle.By top in the portable heating plate to hold-up vessel of installation personnel, pay attention to protecting heating plate, prevent damage of colliding with.Treat first layer
After the installation of support plate 9 fixes, whole circle heating plate is fixed on 6 columns of support plate 9 using iron wire.Pay attention to：Every layer
The stretching conducting wire of heating plate answers consistency from top to bottom, is fixed convenient for anode.
The 3rd, 3 outer wall detecting temperature galvanic couple of outer barrel is installed：2 inside supporting tool 8 of inner cylinder is after installation is complete, by external thermometric electricity
Thermometric galvanic couple on even distribution map installation outer barrel 3, the fixing means and installation requirement of thermometric galvanic couple are the same as internal；External thermometric electricity
It is two every layer even, to be arranged symmetrically.After external thermometric galvanic couple is collected, it is respectively connected to DCS switch boards.
The 4th, external heating device 11 and cooling device are installed：External thermometric galvanic couple will be used as external heating after installation is complete
The infrared heated by natural gas piece tooling lifting in outside of device 11 is in place；To prevent in cool down water and water vapour to infrared
The influence of heating plate is loaded in external heater and adds water-mist-proof plate washer between portion and water ring pipe.
The 5th, packaged type thermometric galvanic couple is installed：The dedicated packaged type thermometric for measuring lead liquid temperature is installed at riser 6
Galvanic couple, packaged type thermometric galvanic couple are moved down after the fusing of lead body and are stretched into shielding cavity 4, and packaged type thermometric galvanic couple length is
6m to ensure that packaged type thermometric galvanic couple can sink to bottom in lead liquid, need to increase the clump weight of 50KG on top, notice that this is matched
Again cannot be excessive, it prevents from being stuck in shielding cavity 4.
2nd, remelting is carried out to the lead body in shielding cavity 4, solidifies again and eliminates pouring defect
A, radioactive test is carried out to the semi-finished articles of hold-up vessel 1, determines to pour according to radioactive test testing result
It notes defective locations and determines the depth of remelting, after the position for determining pouring defect, downward 100mm is left from the position of the defect
Right position starts to reheat, and again melts lead body, for the position that needs melt, to there is data record.
B, external heating device 11 first heats riser 6, after lead body fusing at riser 6, gradually heats hold-up vessel downwards
Cylinder, when heating shell, interior heater and external heater start simultaneously at heating, and each heated perimeter is added with inside
Backing physical location determines.Mode of heating from top to bottom, gradually heats, and first heats top lead body and melts, heating temperature reaches
480~500 DEG C, the heating rate of 3 outer wall of 2 inner wall of inner cylinder and outer barrel is advisable in 100~150 DEG C/h, at 480~500 DEG C
Soaking time be subject to the position lead body all melt.Internal heat 10 and external heating device are successively opened later
11 heating plate, guarantee have temperature gradient variation, the region to be heated to pouring defect position, and fusion temperature reaches 480~500
℃.The temperature gradient controls the mainly heating plate by controlling 11 corresponding position of internal heat 10 and external heating device
Heating power realize.After heating temperature reaches requirement, heat preservation 6 hours is carried out, it is ensured that the lead body of entire heating region is complete
Portion is melted, and in remelting overall process, records all related datas.
C, it promotes outer barrel 3 and heats tooling, first above carry the cooling water pipe of cooling device to molten lead region lower position, temperature
It spends in 200~250 DEG C of region, simultaneously closes off the inside electric heating layer of relative altitude；Water cooling system switch is opened, observes water
The effect of atomization, adjusts the pressure of water, ensures two adjacent nozzle nebulization regions overlappings, should not there are dead angles to be advisable；It sees at any time
Location is in the temperature change of the packaged type thermometric galvanic couple in lead liquid, when lead liquid temperature is at 350~360 DEG C, promotes lead liquid in time
In packaged type thermometric galvanic couple, 150~200mm of hoisting depth (marks) in advance, continues spray 30 minutes, closes water spray
Leaching system after stopping 2 minutes, observes the temperature change of the thermometric galvanic couple of 3 outer wall corresponding position of 2 inner wall of inner cylinder and outer barrel,
And the thermometric galvanic couple temperature of 2 inner wall of inner cylinder at least below 200 DEG C when, can stop spraying, if temperature increases again, be further continued for
Spray repeats this action, until temperature no longer rises；Barrel temperature at cooled position no longer rose or in 2 minutes
When ascending temperature is less than 10 DEG C, water sprinkler system can be promoted, 150~200mm of hoisting depth is (in advance on external tooling lead
Make marks), the electrical heating lamella of the internal heat 10 of respective heights is closed, carries out external spraying cooling, cooling requirement is same
On.It successively promotes external heating device 11, cooling device, close internal heat 10, (do not include until completing all lead liquid
At riser 6) solidify.After completing remelting and solidification, cutoff, power-off, site clearing；The semi-finished articles 1 of container to be stored are thorough
After being cooled to room temperature, by the size of cylinder 3, ellipticity measurement inside and outside former label measurement and record.
3rd, points for attention：
When I) promoting external heating device 11, the heating ring higher than the external heating device 11 of 6 position of riser can be closed successively
It closes；
II the state of lead liquid at riser 6) is observed at any time, ensures that it is in molten condition always；
III) according to scene temperature situation of change, pressure and the time of cooling device shower water can suitably be adjusted；
In conclusion the utility model effectively overcomes various shortcoming of the prior art and has high industrial exploitation value
Value.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications completed under refreshing and technological thought or change, should be covered by the claim of the utility model.
Claims (4)
1. a kind of patch system of irradiated fuel store container lead body shielded layer pouring defect, the semi-finished articles of the hold-up vessel
(1) including inner cylinder (2) and the outer barrel (3) being sleeved on the outside of inner cylinder (2), inner cylinder (2) upper and lower ends opening, inner cylinder
(2) there is the shielding cavity (4) of annular between outer barrel (3), shielding cavity (4) upper end, which has, fills lead mouth (5), in shielding cavity (4)
Lead body shielded layer (7) with solidification；It is characterized in that further include supporting tool (8), cooling device, external heating device (11),
Internal heat (10) and temperature measuring equipment；
The supporting tool (8) is for being mounted in inner cylinder (2) support inner cylinder (2) inner wall to prevent inner cylinder (2) heated
Deformation；
The cooling device is set on the outside of outer barrel (3)；
The external heating device (11) is set on the outside of outer barrel (3) heating outer barrel (3), the internal heat
(10) to heat inner cylinder (2) on the inside of inner cylinder (2), external heating device (11) is connect with derricking gear；
The temperature measuring equipment includes the thermometric galvanic couple on the inner wall of inner cylinder (2), the thermometric on outer barrel (3) outer wall
Galvanic couple and the packaged type thermometric galvanic couple moving up and down at riser (6).
2. the patch system of irradiated fuel store container lead body shielded layer pouring defect according to claim 1, feature exist
In：The packaged type thermometric galvanic couple is equipped with clump weight.
3. the patch system of irradiated fuel store container lead body shielded layer pouring defect according to claim 1, feature exist
In：Further include control device (12), the cooling device, external heating device (11), internal heat (10) and thermometric dress
It puts and is connect with control device (12).
4. the patch system of irradiated fuel store container lead body shielded layer pouring defect according to claim 1, feature exist
In：The supporting tool (8) includes multi-layer circular support plate (9)；Each support plate (9) is put together by two semi-discs.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721341915.4U CN207572074U (en) | 2017-10-18 | 2017-10-18 | The patch system of irradiated fuel store container lead body shielded layer pouring defect |
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|---|---|---|---|
| CN201721341915.4U CN207572074U (en) | 2017-10-18 | 2017-10-18 | The patch system of irradiated fuel store container lead body shielded layer pouring defect |
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| CN207572074U true CN207572074U (en) | 2018-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680700A (en) * | 2017-10-18 | 2018-02-09 | 上海阿波罗机械股份有限公司 | The patch system and method for irradiated fuel store container lead body screen layer pouring defect |
-
2017
- 2017-10-18 CN CN201721341915.4U patent/CN207572074U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680700A (en) * | 2017-10-18 | 2018-02-09 | 上海阿波罗机械股份有限公司 | The patch system and method for irradiated fuel store container lead body screen layer pouring defect |
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