CN207572072U - The external-cooling type that lead is filled into irradiated fuel store container fills lead system - Google Patents
The external-cooling type that lead is filled into irradiated fuel store container fills lead system Download PDFInfo
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- CN207572072U CN207572072U CN201721350216.6U CN201721350216U CN207572072U CN 207572072 U CN207572072 U CN 207572072U CN 201721350216 U CN201721350216 U CN 201721350216U CN 207572072 U CN207572072 U CN 207572072U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model is related to fill the external-cooling type of lead in a kind of container to irradiated fuel store to fill lead system, when carrying out filling lead to the shielding cavity of the semi-finished articles of hold-up vessel, it can utilize supporting tool that can prevent inner cylinder temperature distortion in operation is perfused；Internal heat and external heating device can preheat the semi-finished articles of hold-up vessel to reduce the inner wall temperature of shielding cavity and the gap of lead liquid temperature, can ensure that mobility of the lead liquid in shielding cavity is preferable in this way, ensure to fill lead quality；After injecting lead liquid into shielding cavity by casting device, external heating device and internal heat are lifted up, and using bottom-up ground the cooling down to outer barrel of the cooling device on the outside of the outer barrel, lead liquid to be promoted to solidify；Temperature measuring equipment can be detected the preheating temperatures of the semi-finished articles of hold-up vessel, preheating temperature, the temperature of lead liquid of pouring into a mould pipeline etc. so that the temperature during lead perfusion is easily controllable, ensures the pouring quality of lead liquid.
Description
Technical field
The utility model is related to fill the external-cooling type of lead in a kind of container to irradiated fuel store to fill lead system, more particularly to one
Kind belongs to 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.The filling lead of spent fuel transport container is operated, is the difficult point in whole container manufacturing process.Due to the filling of container
2088 × Φ of lead cavity size Φ 1879 × 4086, during cast, easily there is the defects of slag inclusion, cold shut, stomata, shrinkage cavity in lead body.
In order to ensure the quality requirement of lead body, every technical parameter is controlled during filling lead, control entirety fills the lead time, particularly important.
In order to ensure the shield effectiveness of lead screen layer, it is necessary to use filling lead system and the side for being suitable for filling lead for spentnuclear fuel cask flask
Method, to ensure to fill lead quality.
Utility model content
In view of the foregoing deficiencies of prior art, hold the purpose of this utility model is to provide a kind of to irradiated fuel store
The external-cooling type that lead is filled in device fills lead system, shielding that can easily to the semi-finished articles of the semi-finished articles of irradiated fuel store container
Lead liquid is perfused in chamber.
To achieve the above object, the utility model provides a kind of system that lead is filled to irradiated fuel store container shield intracavitary,
The semi-finished articles of the hold-up vessel include inner cylinder and the outer barrel being sleeved on the outside of inner cylinder, and inner cylinder upper and lower ends are open,
There is the shielding cavity of annular, shielding cavity, which has, fills lead mouth between inner cylinder and outer barrel；Further include supporting tool, cooling device,
External heating device, internal heat, casting device and temperature measuring equipment；The supporting tool is used to be mounted in inner cylinder and prop up
Inner cylinder inner wall is supportted to prevent inner cylinder temperature distortion during lead is filled；The cooling device is set on the outside of outer barrel；It is described
External heating device is set on the outside of outer barrel, and the internal heat is set on the inside of inner cylinder, and external heating device is with rising
Loop wheel machine structure connects；The casting device include for accommodate molten lead liquid lead pan, for aspirate the lead pump of lead liquid, connection described in
Lead pump and the cast pipeline in shielding cavity；The end of the cast pipeline is equipped with sprue gate, and cast pipeline is connect with derricking gear；
The temperature measuring equipment includes the thermometric galvanic couple being set on the inner wall of inner cylinder, the thermometric galvanic couple on outer barrel outer wall, is set on
Thermometric galvanic couple in lead pan bottom and lead liquid, the thermometric galvanic couple on cast pipeline.
A kind of using the utility model fills the system of lead to the half of hold-up vessel to irradiated fuel store container shield intracavitary
When the shielding cavity of finished parts carries out filling lead, the inner wall of supporting tool support inner cylinder can be utilized, prevents inner cylinder from making in perfusion
Temperature distortion in industry；Internal heat and external heating device can preheat the semi-finished articles of hold-up vessel to reduce
The inner wall temperature of shielding cavity and the gap of lead liquid temperature, can ensure that mobility of the lead liquid in shielding cavity is preferable in this way, ensure
Fill lead quality；It is after injecting lead liquid into shielding cavity by casting device, external heating device and internal heat is upward
Lift, and using bottom-up ground the cooling down to outer barrel of the cooling device on the outside of the outer barrel, lead liquid to be promoted to coagulate
Gu；Temperature measuring equipment can be to the preheating temperatures of the semi-finished articles of hold-up vessel, preheating temperature, the temperature of lead liquid of pouring into a mould pipeline etc.
It is detected so that the temperature during lead perfusion is easily controllable, ensures the pouring quality of lead liquid.The utility model as a result,
A kind of semi-finished articles shielding cavity to irradiated fuel store container in fill lead system can be easily to irradiated fuel store container
Shielding cavity in be perfused lead liquid, simple in structure, easily fabricated and use, cost is relatively low.
Preferably, the casting device has multiple cast pipelines, each circumferencial direction for pouring into a mould pipeline along the shielding cavity
Distribution.In this way, when injecting lead liquid in the shielding cavity to hold-up vessel, lead liquid energy is enough relatively evenly circumferentially distributed along shielding cavity,
The lead density in the block formed after the solidification of lead liquid is more uniform, so that can be preferably in the hold-up vessel finally manufactured
Shield the ray in spentnuclear fuel.It is known that the mobility of lead liquid is poor, if only with a cast pipeline into shielding cavity
Lead liquid is injected, lead liquid flows out and from the sprue gate of cast pipe end into other positions flow process, and lead liquid is cooled work
Can be worse with mobility, easily cause pouring defect.And the gate spool that multiple circumferencial directions along the shielding cavity is used to be distributed
Road can solve the problems, such as this.
Preferably, smoke-discharging dust-eliminating device is further included, smoke-discharging dust-eliminating device fills the flue gas generated during lead for pump drainage.Row
Fume and dust device will will can fill the flue gas discharge generated during lead in time, operating personnel to be prevented to be poisoned.
Preferably, control device, the cooling device, external heating device, external heating device, casting device are further included
It is connect with temperature measuring equipment with control device.The temperature signal detected using control device to temperature measuring equipment is monitored place
Reason, and heating unit is controlled according to handling result, cooling device and casting device work.
Preferably, the agitating device for stirring lead liquid in lead pan is further included.Agitating device can promote the lead in lead pan
Liquid uniformity of temperature profile so that lead liquid fully melts.
Preferably, the derricking gear is driving.Cast pipeline, external heating device, inside can be added using driving
The equipment such as thermal are lifted by crane.
Preferably, the temperature measuring equipment is further included from the packaged type thermometric galvanic couple filled in lead mouth insertion shielding cavity, removable
Dynamic formula thermometric galvanic couple is equipped with clump weight.The temperature of shielding cavity bottom can be monitored using the packaged type thermometric galvanic couple, to make
Industry personnel, which provide, judges whether that the data of pouring practice can be carried out.Clump weight contributes to the packaged type thermometric galvanic couple to sink to screen
Cover bottom of chamber portion.
Correspondingly, the utility model also provides a kind of method that lead is filled to irradiated fuel store container shield intracavitary, in utilization
It states technical solution or the system for filling lead to irradiated fuel store container shield intracavitary described in its any preferred technical solution carries out
Operation, including following job step：
1) preparation work of the semi-finished articles of hold-up vessel
1.1) supporting tool that installation is used to support inner cylinder inner wall to prevent inner cylinder from deforming in inner cylinder；
1.2) internal heat and thermometric galvanic couple are installed in interior cylinder inboard wall；
1.3) thermometric galvanic couple and external heating device are installed in the outer wall of outer barrel；
1.4) internal heat and external heating device is opened to preheat the semi-finished articles of hold-up vessel；
2) it will be put into lead pan by the lead of cleaning and be fused into lead liquid；
3) preparation work of lead pump and cast pipeline
3.1) lead pump is preheated, then lead pump is put into lead liquid again；
3.2) the cast pipeline preheating between sprue gate and lead pump；Cast pipeline is connected to fill in lead mouth and is preheated；
4) Lead exposed is filled：
4.1) lead pump is opened, lead pump is by lead liquid by pouring into a mould in pipeline, the sprue gate injection shielding cavity；
4.2) during lead liquid is injected into shielding cavity, stop the semi-finished articles heating to hold-up vessel；To emitting oral area
Divide continuous heating heat preservation；
4.3) during lead liquid is injected into shielding cavity, cast pipeline is lifted up to keep pouring together with sprue gate
There is distance between geat lower end and lead liquid；
4.4) cooling device in inner cylinder is opened, cooling device from the bottom to top cools down the inner wall of inner cylinder.
As described above, a kind of of the utility model fills the method for lead certainly with upper to irradiated fuel store container shield intracavitary
A kind of advantageous effect of system that lead is filled to irradiated fuel store container shield intracavitary of the utility model is stated, moreover, being poured
Before note, first storage is held with preventing hold-up vessel temperature distortion in casting process with the inner wall of supporting tool support inner cylinder
Device semi-finished articles, lead pump, cast pipeline are preheated the mobility to improve lead liquid, are prevented lead liquid local solidification and are influenced to pour into a mould
Operation is normally carried out, set in inner cylinder internal heat, outside outer barrel setting external heating device to hold-up vessel
It is heated, can so that the temperature in hold-up vessel is more uniform, be conducive to lead liquid and flowed in shielding cavity；Cooling device by
The inner wall of inner cylinder is cooled down down toward Shangdi, in this way, can cause the lead having been injected into liquid energy is enough to solidify in time, is improved
The quality of lead liquid solidification；Also, during lead is filled, pour into a mould and be lifted upward to keep under sprue gate together with pipeline and sprue gate
There is distance, so as to avoid being blocked at sprue gate between end and lead liquid.It can be seen that the utility model is a kind of to weary combustion
Expect that the method that lead is filled in hold-up vessel shielding cavity can reliably pay close attention to lead liquid into hold-up vessel shielding cavity, improve and fill lead matter
Amount.
Preferably, lead liquid has been filled before the step 4.4), in shielding cavity.In this way, before cooling, screen
It covers and lead liquid is filled in chamber, lead liquid is fully filled full shielding cavity and then using cooling device from bottom to up in shielding cavity
Lead liquid cooled down, lead liquid solidifies from bottom to up, and the lead liquid energy on upper strata reaches feeding downward in time, therefore, the lead of solidification
The defects of shrinkage cavity, loose, cold shut are less prone in liquid.
Preferably, in the step 2), the temperature of lead liquid is heated to after 550 DEG C, keeps the temperature 1 hour.It in this way can be with
Ensure that lead liquid is fully melted, prevent the lead not being melted from entering shielding cavity and causing pouring defect.
Preferably, after lead liquid insulation 1 hour, derricking gear lifts agitating device to stirring lead liquid in lead pan
It mixes.It can cause that lead liquid temperature is more uniform in this way, be conducive to lead liquid and fully melt.
Preferably, in the step 1.4), heat preservation 2 is small after outer barrel and inner cylinder are heated to 465-495 DEG C
When.It can ensure that temperature close to the temperature of lead liquid, is conducive to lead liquid in shielding cavity everywhere in the shielding cavity of hold-up vessel in this way
The defects of middle flowing is to be full of shielding cavity, prevent underpriming.
Description of the drawings
Fig. 1 is shown as a kind of structural representation of system that lead is filled to irradiated fuel store container shield intracavitary of the utility model
Figure；
Fig. 2 is shown as the structure diagram of hold-up vessel.
Component label instructions
1 lead pan, 7 shielding cavity
2 lead pumps 8 fill lead mouth
3 cast 9 supporting tools of pipeline
10 internal heat of semi-finished articles of 4 hold-up vessels
5 inner cylinder, 11 casting device
6 outer barrel, 12 external heating 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 utility model provides a kind of system that lead is filled into irradiated fuel store container shield chamber 7,
The semi-finished articles 4 of the hold-up vessel include inner cylinder 5 and are sleeved on the outer barrel 6 in 5 outside of inner cylinder, 5 upper and lower ends of inner cylinder
Opening has the shielding cavity 7 of annular between inner cylinder 5 and outer barrel 6, shielding cavity 7, which has, fills lead mouth 8；Further include supporting tool
9th, cooling device (not shown), external heating device 12, internal heat 10, casting device 11 and temperature measuring equipment；Institute
Supporting tool 9 is stated for supporting inner cylinder inner wall to prevent inner cylinder 5 from being become during lead is filled by heat in the inner cylinder 5
Shape；The cooling device is set on 6 outside of outer barrel；The external heating device 12 is set on the outside of outer barrel 6, and the inside adds
Thermal 10 is set on 5 inside of inner cylinder, and external heating device 12 is connect with derricking gear (not shown)；The casting device
11 include for accommodate molten lead liquid lead pan 1, for aspirate the lead pump 2 of lead liquid, the connection lead pump 2 in shielding cavity 7
Pour into a mould pipeline 3；The end of the cast pipeline 3 is equipped with sprue gate, and cast pipeline 3 is connect with derricking gear；The temperature measuring equipment
Including being set on the thermometric galvanic couple on the inner wall of inner cylinder 5, the thermometric galvanic couple on 6 outer wall of outer barrel, set on 1 bottom of lead pan and
Thermometric galvanic couple in lead liquid, the thermometric galvanic couple on cast pipeline 3 can also set infrared thermometry on 6 outer wall of outer barrel
Probe.Using the utility model a kind of system that lead is filled into irradiated fuel store container shield chamber 7 to the half of hold-up vessel into
When the shielding cavity 7 of product part 4 carries out filling lead, supporting tool 9 can be utilized to support the inner wall of inner cylinder 5, inner cylinder 5 is prevented to be perfused
Temperature distortion in operation；Internal heat 10 and external heating device 12 can carry out the semi-finished articles 4 of hold-up vessel pre-
Heat can ensure mobility of the lead liquid in shielding cavity 7 in this way to reduce the gap of the inner wall temperature of shielding cavity 7 and lead liquid temperature
Preferably, ensure to fill lead quality；After injecting lead liquid into shielding cavity 7 by casting device 11, by external heating device 12 and interior
Portion's heating unit 10 is lifted up, and utilizes the bottom-up progress to outer barrel 6 of ground of the cooling device set on the outside of outer barrel 6
Cooling, lead liquid to be promoted to solidify；Temperature measuring equipment can to the preheating temperatures of the semi-finished articles 4 of hold-up vessel, cast pipeline 3 it is pre-
Hot temperature, temperature of lead liquid etc. are detected so that the temperature during lead perfusion is easily controllable, ensures the perfusion matter of lead liquid
Amount.The system for filling lead in a kind of 4 shielding cavity 7 of semi-finished articles to irradiated fuel store container of the utility model as a result, can be square
Just lead liquid is perfused into the shielding cavity 7 of irradiated fuel store container, simple in structure, easily fabricated and use, cost are relatively low.
In a kind of system that lead is filled into irradiated fuel store container shield chamber 7 of the utility model, in order to enable lead liquid
It is evenly distributed in shielding cavity 7, it is preferable that the casting device 11 has multiple cast pipelines 3, and each pipeline 3 of pouring into a mould is along institute
State the circumferencial direction distribution of shielding cavity 7.In this way, when injecting lead liquid in the shielding cavity 7 to hold-up vessel, lead liquid energy is enough more uniform
Ground is circumferentially distributed along shielding cavity 7, and the lead density in the block formed after the solidification of lead liquid is more uniform, so that finally manufacture
The ray in spentnuclear fuel can be preferably shielded in hold-up vessel.It is known that the mobility of lead liquid is poor, if only with one
A cast pipeline 3 inject lead liquid into shielding cavity 7, and lead liquid flows out from the sprue gate of 3 end of cast pipeline and to other positions stream
During dynamic, lead liquid is cooled action flow can be worse, easily causes pouring defect.And it uses multiple along the shielding cavity
The cast pipeline 3 of 7 circumferencial direction distribution can solve the problems, such as this.
In Lead exposed is filled, lead liquid can generate some leaded flue gases when melting, and have toxicity, it is preferable that further include
Smoke-discharging dust-eliminating device, smoke-discharging dust-eliminating device fill the flue gas generated during lead for pump drainage.Smoke-discharging dust-eliminating device can be in time
The flue gas discharge generated during lead will will be filled, operating personnel to be prevented to be poisoned.
Filling Lead exposed is controlled in order to the temperature data easily surveyed according to temperature measuring equipment, in the utility model
A kind of system that lead is filled into irradiated fuel store container shield chamber 7 in, it is preferable that further include control device, the cooling dress
It puts, internal heat 10, external heating device 12, casting device 11 and temperature measuring equipment are connect with control device.Utilize control
The temperature signal that device processed detects temperature measuring equipment is monitored processing, and controls heating unit according to handling result, cold
But device and casting device 11 work.In order to comprehensively detect the temperature in shielding cavity 7, it is preferable that the thermometric
Device is further included from the packaged type thermometric galvanic couple filled in the insertion shielding cavity 7 of lead mouth 8, and packaged type galvanic couple can move up and down,
Packaged type thermometric galvanic couple is equipped with clump weight.The temperature of 7 bottom of shielding cavity can be monitored using the packaged type thermometric galvanic couple,
The data for judging whether that pouring practice can be carried out are provided for operating personnel.Clump weight contributes to the packaged type thermometric galvanic couple to sink
Enter 7 bottom of shielding cavity.
It is fully melted in order to enable lead liquid energy is enough, it is preferable that further include the stirring dress for stirring lead liquid in lead pan 1
It puts.Agitating device can promote the lead liquid uniformity of temperature profile in lead pan 1 so that lead liquid fully melts.Usually, workshop is all
There is driving, it is preferable that the derricking gear is driving.It can be to cast pipeline 3, external heating device 12, inside using driving
The equipment such as heating unit 10 are lifted by crane.
Correspondingly, the utility model also provides a kind of method that lead is filled into irradiated fuel store container shield chamber 7, in utilization
It states technical solution or the system that lead is filled into irradiated fuel store container shield chamber 7 described in its any preferred technical solution carries out
Operation, including following job step：
1) preparation work of the semi-finished articles 4 of hold-up vessel
1.1) supporting tool 9 that installation is used to support 5 inner wall of inner cylinder to prevent inner cylinder 5 from deforming in inner cylinder 5；
1.2) internal heat 10 and thermometric galvanic couple are installed in 5 inner wall of inner cylinder；
1.3) thermometric galvanic couple and external heating device 12 are installed in the outer wall of outer barrel 6；
1.4) it opens the internal heat 10 and external heating device 12 preheats the semi-finished articles 4 of hold-up vessel；
2) it will be put into lead pan 1 by the lead of cleaning and be fused into lead liquid；
3) preparation work of lead pump 2 and cast pipeline 3
3.1) lead pump 2 is preheated, then lead pump 2 is put into lead liquid again；
3.2) the cast pipeline 3 between sprue gate and lead pump 2 preheats；Cast pipeline 3 is connected to and fills pre- in lead mouth 8
Heat；
4) Lead exposed is filled：
4.1) lead pump 2 is opened, lead pump 2 is by lead liquid by pouring into a mould in pipeline 3, the sprue gate injection shielding cavity 7；
4.2) during lead liquid is injected into shielding cavity 7, stop heating the semi-finished articles 4 of hold-up vessel；To riser
Part continuous heating heat preservation；
4.3) during lead liquid is injected into shielding cavity 7, cast pipeline 3 is lifted up keeping together with sprue gate
There is distance between sprue gate lower end and lead liquid；
4.4) cooling device in inner cylinder 5 is opened, cooling device from the bottom to top carries out the inner wall of inner cylinder 5 cold
But.
As described above, a kind of method for filling lead into irradiated fuel store container shield chamber 7 of the utility model has certainly
The advantageous effect of a kind of system that lead is filled into irradiated fuel store container shield chamber 7 of above-mentioned the utility model, moreover, carrying out
Before cast, the inner wall of inner cylinder 5 first is supported to prevent hold-up vessel temperature distortion in casting process with supporting tool 9, to storage
It deposits container semi-finished articles, lead pump 2, cast pipeline 3 and is preheated mobility to improve lead liquid, prevent lead liquid local solidification and shadow
It rings pouring practice to be normally carried out, external heating device is set outside the interior setting internal heat 10 of inner cylinder 5, outer barrel 6
12 pairs of hold-up vessels heat, and can so that the temperature in hold-up vessel is more uniform, are conducive to lead liquid and are flowed in shielding cavity 7
It is dynamic；Cooling device from the bottom to top cools down the inner wall of inner cylinder 5, in this way, the lead having been injected into liquid energy can be caused to reach
It solidifies in time, improves the quality of lead liquid solidification；Also, during lead is filled, cast pipeline 3 is carried upwards together with sprue gate
It rises to keep that there is distance between sprue gate lower end and lead liquid, so as to avoid being blocked at sprue gate.It can be seen that this practicality
A kind of novel method that lead is filled into irradiated fuel store container shield chamber 7 can be closed reliably into hold-up vessel shielding cavity 7
Lead liquid is noted, improves and fills lead quality.
A kind of method that lead is filled into irradiated fuel store container shield chamber 7 of the utility model has above-mentioned practicality certainly
A kind of advantageous effect of novel system that lead is filled into irradiated fuel store container shield chamber 7, moreover, before being poured into a mould,
First support the inner wall of inner cylinder 5 with supporting tool 9 to prevent hold-up vessel temperature distortion in casting process, to hold-up vessel half into
Product part, lead pump 2, cast pipeline 3 are preheated the mobility to improve lead liquid, are prevented lead liquid local solidification and are influenced pouring practice
It is normally carried out, setting external heating device 12 holds storage outside the interior setting internal heat 10 of inner cylinder 5, outer barrel 6
Device is heated, and can so that the temperature in hold-up vessel is more uniform, is conducive to lead liquid and is flowed in shielding cavity 7；Cooling dress
It puts and the inner wall of inner cylinder 5 is cooled down from the bottom to top, in this way, can cause the lead having been injected into liquid energy is enough to coagulate in time
Gu improve the quality of lead liquid solidification；Also, during lead is filled, cast pipeline 3 is lifted upward to keep together with sprue gate
There is distance, so as to avoid being blocked at sprue gate between sprue gate lower end and lead liquid.It can be seen that the one of the utility model
The method that kind fills lead into irradiated fuel store container shield chamber 7 can reliably pay close attention to lead liquid into hold-up vessel shielding cavity 7, carry
Height fills lead quality.
In order to obtain good casting quality, it is preferable that before the step 4.4), lead has been filled in shielding cavity 7
Liquid.In this way, before cooling, lead liquid is filled in shielding cavity 7, lead liquid is fully filled full shielding cavity 7 and then utilizes cold
But device from bottom to up cools down the lead liquid in shielding cavity 7, and lead liquid solidifies from bottom to up, the lead liquid energy on upper strata it is enough and
When downward feeding, therefore, the defects of shrinkage cavity, loose, cold shut are less prone in the lead liquid of solidification.
It is fully melted in order to enable lead liquid energy is enough, it is preferable that in the step 2), the temperature of lead liquid is heated to
After 550 DEG C, 1 hour is kept the temperature.It can ensure that lead liquid is fully melted, and prevents the lead not being melted from entering shielding cavity in this way
7 and cause pouring defect.As a preferred embodiment, after lead liquid insulation 1 hour, derricking gear is by agitating device
Lead liquid is stirred in lifting to lead pan 1.It can cause that lead liquid temperature is more uniform in this way, be conducive to lead liquid and fully melt.
Further, in the step 1.4), outer barrel 6 and inner cylinder 5 are heated to 465-495 DEG C of heat preservation 2 hours later.This
Sample can ensure that temperature close to the temperature of lead liquid, is conducive to lead liquid and is flowed in shielding cavity 7 everywhere in the shielding cavity 7 of hold-up vessel
The defects of moving to be full of shielding cavity 7, prevent underpriming.
The impurity effect casting quality of lead surface adhesion in order to prevent needs block-by-block to check the surface cleanness of lead,
There must not be the dirts such as dust, soil, greasy dirt.It to be purged if there are dirt, applied compression air or nitrogen on lead surface.If
There is greasy dirt on lead surface, then is cleaned with acetone.Lead shove charge enters before lead pan 1 using flame baking surface, removes lead table
Face steam.
The semi-finished articles 4 of the hold-up vessel are before Lead exposed is filled, 7 lower ending opening of shielding cavity, it is therefore desirable to will store
Container semi-finished articles, which turn, makes the opening up as filling lead mouth 8 of shielding cavity 7.Then by installation personnel according to thermometric galvanic couple
Layout drawing installs thermometric galvanic couple seat and thermometric galvanic couple in inner cylinder 5, and thermometric galvanic couple seat is used to install thermometric galvanic couple.Then pacify again
The heating plate on 5 inner wall of inner cylinder is filled, each layer of thermometric galvanic couple and heating plate are installed simultaneously, simultaneously, it is ensured that all thermometric electricity
Even not neglected loading；Ensure that the heating of heating plate is in the right direction, towards cylinder inboard wall；The conducting wire of heating plate draws each along a direction
Go out, fixation is uniformly tied up for the conducting wire of same position after convenient, installs from top to bottom, is finally completed all heating plates and survey
Warm galvanic couple installation.The thermometric galvanic couple of lead liquid temperature at dedicated measurement riser is additionally provided at cast riser.
5 inside tooling of inner cylinder is after installation is complete, by the thermometric electricity on external thermometric galvanic couple distribution map installation outer barrel 6
Even, the fixing means and installation requirement of thermometric galvanic couple are the same as internal；External thermometric galvanic couple two every layer, to be arranged symmetrically.Outside is surveyed
After warm galvanic couple is collected, it is respectively connected to switch board.Then external heating device 12 and cooling device are installed again.Outside outer barrel 6
Thermometric galvanic couple lifts the external heating device 12 outside outer barrel 6 in place after installation is complete；To prevent in cool down
The influence of water and water vapour to external heating device 12 adds between 12 lower part of external heating device and the water ring pipe of cooling device
Water-mist-proof plate washer.
When installing thermometric galvanic couple, in the both ends of each channel Temperature Measuring galvanic couple metal label card mark；The benefit of thermometric galvanic couple
It repays conducting wire both ends and uses papery identifying plate.The label of identifying plate presses the correspondence label system in inside and outside 6 thermometric galvanic couple expanded view of cylinder
Make, identifying plate should be solid and reliable, does not allow to come off.On each channel Temperature Measuring galvanic couple, at least need and marked at 4.Thermometric galvanic couple should
Mark is carried out in advance, is corresponded with the position on cylinder, is uniformly connected to DCS switch boards and relevant power control cabinet, has connected
Cheng Houying is detected piece by piece, to ensure the good of thermometric galvanic couple, flame local heating can be used, observe and record the variation of temperature to examine
Whether intact survey thermometric galvanic couple.It must assure that thermometric galvanic couple end must be close to equipment wall surface when thermometric galvanic couple is installed, anti-
Turn, do not allow thermometric galvanic couple loose end in mobile hold-up vessel semi-finished articles and heating process；All inside thermometric galvanic couples
It is unified by thermometric galvanic couple, heating plate connecting line access DCS switch boards and electric heating sheets switch board with heating tape after installation is complete；
After thermometric galvanic couple and inside and outside heating plate install, it is necessary to through could be heated after the assay was approved to equipment.
When melting lead, it is 650 DEG C to set lead pan 1 bottom-heated temperature by control device, heating rate for 200~
300 DEG C/h is advisable, and after checking that various aspects are errorless, igniting is begun to warm up；It should have staff on duty in heating process, prevent fortuitous event
Generation；When the thermometric galvanic couple temperature in lead pan 1 reaches 300 DEG C or so, the fusing situation of lead is observed at any time, when all
After lead fusing in pot, then be packed into remaining lead in batches, the amount of inserting cannot be too many every time, wait the lead inserted melt after again
It is packed into, until all leads melt.It should be noted that when inserting and be slowly put into along pot inner wall, prevent the splashing of lead liquid from personnel being caused to scald
Wound；After all lead fusings, persistently lead liquid is heated, until the temperature of lead liquid is heated to 550 DEG C, adjustment heating work(
Rate keeps the temperature lead liquid, keeps the temperature 1 hour；After the completion of heat preservation, agitating device is slowly lifted into lead pan 1, installation is in place,
Lead liquid is stirred, using speed regulating motor, mixing speed is slowly accelerated to 150 revs/min (15 points from slow to fast, by 0 rev/min
It is more than clock), it is stirred 0.5 hour under 150 revs/min of rotating speed；Treat that lead liquid is static after five minutes after stirring, using special fishing slag work
Tool removes lead liquid surface irregularities；After continuing heat preservation 30 minutes, repeat stirring and fishing slag work is primary；Lead melts and stirring
When, fume extractor should be opened, absorbs and filters lead fume.
While lead is melted, reply, which fills lead cavity and inside and outside cylinder 6 and fills lead pipe road, starts simultaneously at preheating；Outside
480 ± 15 DEG C of the heating temperature of cylinder 6, heating rate are advisable for 100~150 DEG C/h, and it is small that heating temperature reaches requirement heat preservation 2
When；The HEATING INFRARED temp probe of outer barrel 6 should combine the thermometric electricity for being arranged in 6 outer wall of outer barrel since measurement error is larger
The temperature occasionally fed back is modified, and to adjust heating power, final temperature is measured as with the thermometric galvanic couple on 6 outer wall of outer barrel
It is accurate；Begun to warm up after internal check various aspects are errorless, respectively will cast pipeline 3 and 5 heating temperature of inner cylinder be set as 480 DEG C ±
15 DEG C, heating rate is advisable for 100 DEG C~150 DEG C/h；Heating temperature keeps the temperature 2 hours when reaching requirement.To ensure to fill lead cavity
Bulk temperature must reach the temperature of 327 DEG C of the fusion temperature of lead or more, the heat insulation layer cover in 7 lower part of shielding cavity (is located at screen
Cover 7 bottom of chamber) at one packaged type thermometric galvanic couple of arrangement (packaged type thermometric galvanic couple and heat insulation layer are ensured using special tooling
Cover is close to) temperature herein is measured, temperature change herein is observed at any time, it if temperature change is smaller in insulating process, can
The temperature of heat preservation is improved, the temperature of requirement herein should just have the condition for filling lead at this time at 400 DEG C or more after the completion of heat preservation；It is interior
The whole heating of cylinder 5 and outer barrel 6 should be as close possible to adjusting heating power, the temperature difference is controlled in the range of 20 DEG C in due course.
The requirement of following aspect should be met before the implementation filling lead of filling lead：
A) lead liquid temperature is met the requirements after stirring, fishing slag, and minimum temperature is not less than 480 DEG C；
B) not less than 480 DEG C, the temperature of cast pipeline 3 is not less than 480 DEG C for inner cylinder 5 and 6 each point temperature of outer barrel；Especially
The heat insulation layer cover temperature for being 7 bottom of shielding cavity should be at 400 DEG C or more；
C) it has been taken out for detecting the thermometric galvanic couple of heat insulation layer cover temperature, the thermometric galvanic couple for measuring lead fluid temperature has been charged into
With fixation (being 50~100mm apart from cavity the lowermost distance)；
D) it fills lead pipe (90 ° of lower part elbow) to have installed to the specified location of shielding cavity 7, apart from 30~50mm of bottom；
E) to outer barrel 6 heat external heating device 12 and derricking gear, cooling device, inner ventilation system and
The lifting device of lead liquid thermometric galvanic couple checks normal；
When above-mentioned condition is satisfied by, starts to fill lead, operate in accordance with the following steps：
Lead pump 2 (lower end of lead pump 2 should be no less than 50mm with the bottom of a pan) is hung in, blunting of attention segmentation (point three steps, head when hanging in
Portion, centre and top duct), every section of preheating is sunk again after stopping 5 minutes or so, avoids lead liquid being caused to be blown due to excessive temperature differentials
It splashes；
Connect lead pump 2 and cast pipeline 3；2 power supply of valve and lead pump is opened, lead liquid is disposably filled by pouring into a mould pipeline 3
Enter to fill in lead cavity, record filling temperature and time；
Lead liquid raising at fluid change and the riser in lead pan 1 is observed, when the lead joint at riser closely specifies graticule, is closed
2 power supply of lead pump；
Remove cast pipeline 3, propose the cast pipeline 3 in shielding cavity 7, promoting speed should not be too fast, prevent gas into
Enter；
Heating and thermal insulation is carried out to lead liquid, holding temperature is 480 ± 15 DEG C, keeps the temperature 2 hours；
It is bottom-up successively to cool down：After the completion of the heat preservation of the lead liquid in shielding cavity 7 is poured into, start bottom-up successively to filling
The lead liquid for entering cavity is cooled down；
The external heating device 12 of outer barrel 6 is promoted, hoisting depth 100mm makes the lower water cooling ring vessel of cooling device
7 bottom of nozzle alignment shielding cavity position on the lower side simultaneously closes off the electric heating sheets of the internal heat 10 of relative altitude position
Layer；
Water-cooling apparatus switch is opened, top forging and lead layer are cooled down, observes the effect of water atomization, adjusts the pressure of water
Power ensures two adjacent nozzle nebulization regions overlappings, should not there are dead angles to be advisable；
At any time observation be located at 7 lead liquid of shielding cavity in thermometric galvanic couple temperature change, when lead liquid temperature at 350~360 DEG C and
Thermometric galvanic couple in Shi Tisheng lead liquid, 150~200mm of hoisting depth (are marked) in advance, continue spray 30 minutes, close water
Spray system, after stopping 2 minutes, the thermometric galvanic couple variation of this position of observation surfaces externally and internally, and internal thermometric galvanic couple temperature is at least
When below 200 DEG C, can stop spraying, if temperature increases again, be further continued for spraying, repeat this action, until temperature no longer on
It rises；
When hold-up vessel the lowermost temperature no longer rises or ascending temperature is less than 10 DEG C in 2 minutes, water spray can be promoted
Leaching system, 150~200mm of hoisting depth close the electrical heating lamella of the internal heat 10 of respective heights, are filled by cooling down
The external spraying cooling of progress is put, cooling requirement is same as above；
It successively promoted, close internal heat 10, spraying cooling, until completing all lead layers (at not including riser)
Cooling is completed.
Points for attention：
I it) can successively be closed higher than the external heating ring of riser height；
II the state of lead liquid at riser) 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 shower water can suitably be adjusted；
IV cast, cutoff, power-off, site clearing) are completed；
V after) container to be stored is thoroughly cooled to room temperature, by the size of cylinder 6, ellipticity measurement inside and outside former label measurement simultaneously
Record.
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 (5)
1. the external-cooling type that lead is filled in a kind of container to irradiated fuel store fills lead system, semi-finished articles (4) packet of the hold-up vessel
The outer barrel (6) for including inner cylinder (5) and being sleeved on the outside of inner cylinder (5), inner cylinder (5) upper and lower ends opening, inner cylinder (5) and outside
There is the shielding cavity (7) of annular, shielding cavity (7), which has, fills lead mouth (8) between cylinder (6)；It is characterized in that further include supporting tool
(9), cooling device, external heating device (12), internal heat (10), casting device (11) and temperature measuring equipment；
The supporting tool (9) is for being mounted in inner cylinder (5) support inner cylinder inner wall to prevent inner cylinder (5) from filling lead mistake
Temperature distortion in journey；
The cooling device is set on the outside of outer barrel (6)；
The external heating device (12) is set on the outside of outer barrel (6), and the internal heat (10) is set on inner cylinder (5)
Inside, external heating device (12) are connect with derricking gear；
The casting device (11) including being used to accommodating the lead pan (1) of molten lead liquid, for aspirating the lead pump of lead liquid (2), connection
The lead pump (2) and the cast pipeline (3) in shielding cavity (7)；The end of the cast pipeline (3) is equipped with sprue gate, gate spool
Road (3) is connect with derricking gear；
The temperature measuring equipment includes the thermometric galvanic couple on the inner wall of inner cylinder (5), the thermometric on outer barrel (6) outer wall
Galvanic couple, the thermometric galvanic couple in lead pan (1) bottom and lead liquid, the thermometric galvanic couple on cast pipeline (3).
2. the external-cooling type that lead is filled in the container according to claim 1 to irradiated fuel store fills lead system, it is characterised in that：
The casting device (11) has multiple cast pipelines (3), respectively pours into a mould circumference side of the pipeline (3) along the shielding cavity (7)
To distribution.
3. the external-cooling type that lead is filled in the container according to claim 1 to irradiated fuel store fills lead system, it is characterised in that：
Further include control device, the cooling device, external heating device, internal heat, casting device (11) and thermometric
Device is connect with control device.
4. the external-cooling type that lead is filled in the container according to claim 1 to irradiated fuel store fills lead system, it is characterised in that：Also
Agitating device including being used to stir lead liquid in lead pan (1).
5. the external-cooling type that lead is filled in the container according to claim 1 to irradiated fuel store fills lead system, it is characterised in that：Institute
Temperature measuring equipment is stated to further include from the packaged type thermometric galvanic couple filled in lead mouth (8) insertion shielding cavity (7), packaged type thermometric galvanic couple
It is equipped with clump weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721350216.6U CN207572072U (en) | 2017-10-18 | 2017-10-18 | The external-cooling type that lead is filled into irradiated fuel store container fills lead system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721350216.6U CN207572072U (en) | 2017-10-18 | 2017-10-18 | The external-cooling type that lead is filled into irradiated fuel store container fills lead system |
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| CN207572072U true CN207572072U (en) | 2018-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633890A (en) * | 2017-10-18 | 2018-01-26 | 上海阿波罗机械股份有限公司 | The external-cooling type that lead is filled into irradiated fuel store container fills lead system and method |
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2017
- 2017-10-18 CN CN201721350216.6U patent/CN207572072U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633890A (en) * | 2017-10-18 | 2018-01-26 | 上海阿波罗机械股份有限公司 | The external-cooling type that lead is filled into irradiated fuel store container fills lead system and method |
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