CN101083153B - Ball bed high-temperature gascooled reactor online reloading system and functional subsystem - Google Patents
Ball bed high-temperature gascooled reactor online reloading system and functional subsystem Download PDFInfo
- Publication number
- CN101083153B CN101083153B CN2007101178054A CN200710117805A CN101083153B CN 101083153 B CN101083153 B CN 101083153B CN 2007101178054 A CN2007101178054 A CN 2007101178054A CN 200710117805 A CN200710117805 A CN 200710117805A CN 101083153 B CN101083153 B CN 101083153B
- Authority
- CN
- China
- Prior art keywords
- connects
- divider
- reactor
- ball valve
- fuel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002915 spent fuel radioactive waste Substances 0.000 claims abstract description 98
- 238000002955 isolation Methods 0.000 claims abstract description 59
- 238000007600 charging Methods 0.000 claims abstract description 33
- 239000001307 helium Substances 0.000 claims description 56
- 229910052734 helium Inorganic materials 0.000 claims description 56
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 48
- 238000007599 discharging Methods 0.000 claims description 43
- 239000000463 material Substances 0.000 claims description 41
- 238000003860 storage Methods 0.000 claims description 29
- 238000005259 measurement Methods 0.000 claims description 27
- 238000005070 sampling Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 190
- 238000000034 method Methods 0.000 abstract description 29
- 230000008569 process Effects 0.000 abstract description 27
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000003758 nuclear fuel Substances 0.000 description 19
- 238000012856 packing Methods 0.000 description 19
- 238000013461 design Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004941 influx Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention relates to a sphere-bed high-temperature gas-cooled online refueling system, which belongs to the reactor engineering technology area. The states system includes four function subsystem that new fuel loading system, reactor core fuel cycle main system, spent fuel removing system, reactor core evacuation and re-loading system; which is composed of the charging hole (1), the cross ball counter (2), the isolation ball valve (3), the emptying chute (10), the dumping device (11), the broken spherical tank (12), the divider (40) and so on. The end of the charging hole (1) connects the across ball counter (2), the end of the cross ball counter (2) connects the isolation ball valve (3),the end of isolation ball valve (3) connects the divider (40). The end of the divider (40) divides into two ways, each way connects a suit of the isolation ball valve (5). The invention saves the cost; guarantees the integrality of the fuel component in the entire reactor core loading process; can enhances the fuel simplification and the broken ball separation speed and the reliability, saves the cabin space; effectively control the transportation of the fuel element in system pipeline.
Description
Technical field
The present invention relates to a kind of ball bed high-temperature gascooled reactor online reloading system and functional subsystem thereof, belong to the reactor engineering technical field.
Background technology
The mode of reloading of reactor has two kinds, and a kind of is cold-refueling, and a kind of in addition to be that not shutdown is online reload, and what now most of in the world reactors adopted is the cold-refueling mode, and like presurized water reactor and boiling-water reactor, fuel element is for a long time in heap internal reaction and transfixion.The advantage of cold-refueling mode is that refuelling system is fairly simple, and the reliability and the security of the process of reloading are higher.The shortcoming of cold-refueling mode is whenever to need cold-refueling at a distance from the time more than 1 year, and about about 1 month of the time of reloading, cold-refueling has reduced the availability of reactor and the stressor in power station.
Adopt the reactor of not shutdown continuous fuel replacement mainly to comprise CANDU reactor and pebble bed high temperature reactor at present.The advantage of not shutdown continuous fuel replacement is that reactor can long-time running, helps improving the utilization factor in power station, thereby improves the economy in power station.The on-line refuelling system can also in time draw off damaged fuel assembly, reduces the pollution to coolant circuit.The major defect of not shutdown continuous fuel replacement is the refuelling system more complicated; Cost is higher; Because in the process of reloading, refuelling system has a lot of moving components, reliability and security requirement to these moving components in the process of reloading are very high simultaneously; If online refuelling system breaks down, with the normal operation that influences reactor.
Reloading of CANDU reactor accomplished by two Long-distance Control refueling machines that are positioned at the calandria both sides.A unloading spent fuel rods, another loads new fuel rod.Refuelling outage has been avoided in this design, can arrange shutdown plan more flexibly, also can shorten the maintenance shutdown time.
Pebble bed high temperature reactor is characteristics of utilizing spheric fuel element to be easy to roll, carries through pipeline, make the fresh fuel element continuous roll into reactor core, spent fuel element draws off reactor core.Pebble bed high temperature reactor both domestic and external has all adopted this principle, has designed fuel handling system separately, and external detailed design scheme is still unexposed.China 10MW ball bed high-temperature air cold test heap also is the principle according to this; Designed its unique fuel handling system; Through adopting some novel designs,, realized the continuous fuel replacement of test reactor like (specifically referring to patents 93119442.3) such as air pulse vollyball devices.
The ball bed high-temperature gascooled reactor online reloading system that the present invention mentions; Can be applied to the very big commercial power station of power; Because power is very big; Need to improve fuel element round-robin speed, the fuel handling system that is used for 10MW ball bed high-temperature air cold test heap can not meet the demands, and need design the fuel handling system in commercial power station again.This system is also with reference to some design experiences of China 10MW ball bed high-temperature air cold test heap; Do a large amount of improvement simultaneously, utilized the favourable geometric configuration of fuel element, during reactor operation; Continual to the reactor fresh fuel element of packing into; Draw off spent fuel element that reaches burn-up level and the fuel element that will not reach burn-up level and return reactor core and do recycle, thereby keep the continuous operation of reactor, improve the availability of reactor and the economy in power station.
Summary of the invention
The pebble bed high temperature reactor that the present invention proposes is realized not shutdown continuous fuel replacement through online refuelling system.The major function of online refuelling system comprises: accomplish the charging of reactor initial core; During the reactor operation with the fresh fuel element reactor core of packing into; Discharge duct is discharged fuel element from the reactor pressure vessel bottom; Separate damaged fuel element and element fragment; Fuel element to discharging from reactor core carries out burnup measurement, and the fuel element that will the not reach final burn-up level reactor core of packing into circulates once more; Draw off spent fuel element, and be transported in the irradiated fuel store storehouse and store; When needed with the reactor core emptying, and the whole fuel elements that will discharge transfer to and refill in the material hold-up tank temporaryly, and then feed again to reactor core.
Said ball bed high-temperature gascooled reactor online reloading system; Be provided with a plurality of fuel elements at the some relevant positions of system and carry divider and manifold; The function of divider is to realize that fuel element is assigned to 2 pipelines from a pipeline in the course of conveying in pipe, the function of manifold be realize fuel element in managing in the course of conveying from 2 pipe influx to pipelines.
Ball bed high-temperature gascooled reactor online reloading system is provided with a plurality of ball count devices of crossing at the some relevant positions of system, conveying that can monitoring pipe fuel element, to the fuel element of carrying count or measuring channel in transporting velocity.
Carry divider and manifold and control system thereof through fuel element; The ball count device excessively of each key position setting of coupling system pipeline simultaneously; Can effectively control the course of conveying of fuel element in system pipeline, thereby realize the various functions that system fuel is packed into and drawn off.
The objective of the invention is to propose a kind of novel ball bed high-temperature gascooled reactor online reloading system, this system can supply the fresh fuel elements and draw off spent fuel element for two or more pebble bed reactors simultaneously, is applicable to all ball bed high-temperature air cooling reactors.
The synoptic diagram of the ball bed high-temperature gascooled reactor online reloading system that the present invention proposes is as shown in Figure 1.
System's critical piece comprises: 1-charging door, 2-are crossed the ball count device, 3-isolation ball valve, 4-divider, 5-isolation ball valve, 6-manifold, 7-manifold; The 8-reactor, 9-reactor core, 10-discharge duct, 11-device for discharging, the broken spherical tank of 12-, 13-manifold, 14-burnup measurement point; The 15-divider, 16-helium inlet, the outlet of 17-helium, 18-helium inlet, the outlet of 19-helium, 20-isolation ball valve, 21-manifold; The 22-isolation ball valve, 23-divider, 24-sampling jar, 25-burnup measurement point, 26-divider, 27-air intake, 28-air out; The 29-divider, the 30-spent fuel storage tank, the 31-device for discharging, the 32-air intake, 33-air out, 34-refill the material hold-up tank; The 35-device for discharging, the broken spherical tank of 36-, 37-air intake, 38-air out, 39-isolation ball valve, 40-divider.
Said ball bed high-temperature gascooled reactor online reloading system can be divided into four sub-systems on function: pack into system, reactor fuel circulation main system, spentnuclear fuel of fresh fuel draws off system and reactor core emptying and charging system again.In the above-mentioned critical piece, 1～6 is pack into the critical piece of system of fresh fuel, and 7～17 is the critical piece of reactor fuel circulation main system, and 18～31 for spentnuclear fuel draws off the critical piece of system, and 32～40 is the reactor core emptying and the critical piece of charging system again.
Among Fig. 1; Pack into the equipment erection sequence of system of fresh fuel is: ball count device 2 is taken in charging door 1 back, crosses ball count device 2 back and connects isolation ball valve 3, and isolation ball valve 3 back connect divider 4; Be divided into two-way behind the divider 4; Every road all connects a cover isolation ball valve 5, and isolation ball valve 5 back connect manifold 6, and manifold 6 back connect the manifold 7 of reactor fuel circulation main system.
The equipment erection sequence of said reactor fuel circulation main system is: reactor core 9 is positioned at the inside of reactor 8, and reactor core 9 bottoms connect discharge duct 10, the discharge duct 10 bottoms materials device 11 of unloading; Device for discharging 11 4 pipelines that come out; Wherein two pipelines connect 12,2 pipelines of broken spherical tank and connect manifold 13, and manifold 13 back connect burnup measurement point 14; Burnup measurement point 14 back connect divider 15; Divider 15 back connect manifold 7, and manifold 7 back connect helium inlet 16 and helium outlet 17, and helium outlet 17 back connect reactor 8.
The equipment erection sequence that said spentnuclear fuel draws off system is: divider 15 back of reactor fuel circulation main system connect helium inlet 18 and helium outlet 19, and helium outlet 19 back connect isolation ball valve 20, and isolation ball valve 20 back connect manifold 21; Synthetic 1 pipeline in manifold 21 back, the back connects isolation ball valve 22, and isolation ball valve 22 back connect divider 23; Divider 23 back 2 pipelines that come out, 1 pipeline connects 24,1 pipelines of sampling jar and connects burnup measurement point 25 at the back; Burnup measurement point 25 back connect divider 26; Divider 26 back are divided into 2 pipelines, and 1 pipeline leads to spent fuel storage tank, and other 1 pipeline leads to and refills the material hold-up tank; The pipeline that leads to spent fuel storage tank connects air intake 27 and air out 28 at the back; Air out 28 back connects divider 29, and divider 29 back connect spent fuel storage tank 30, the spent fuel storage tank 30 bottoms materials device 31 of unloading.
Said reactor core emptying with the equipment erection sequence of charging system again is: divider 26 back that spentnuclear fuel draws off system are divided into 2 pipelines, and wherein 1 leads to and refills the material hold-up tank, in this pipeline; Divider 26 back connects air intake 32 and air out 33, and air out 33 back connect and refill material hold-up tank 34, the bottom that refills material hold-up tank 34 materials device 35 of unloading; From device for discharging 35 2 pipelines that come out; Wherein 1 pipeline connects broken spherical tank 36, and other 1 pipeline connects air intake 37 and air out 38, and air out 38 back connect isolation ball valve 39; Isolation ball valve 39 back connects divider 40, and divider 40 back connect pack into the manifold 6 of system of fresh fuel.
The said fresh fuel system of packing into mainly is made up of charging aperture 1, counter 2, isolation ball valve 3 and 5, divider 4 and manifold 6 etc., is that atmosphere is switched pipeline section between the isolation ball valve 3 and 5.Fresh fuel is packed intrasystem fresh fuel element into through manifold 7 entering reactor fuel circulation main systems.
Said reactor fuel circulation main system mainly is made up of reactor 8, reactor core 9, discharge duct 10, device for discharging 11, manifold 13, divider 15 and manifold 7 etc.; Discharge duct 10 upper ends are connected to the bottom of reactor core 9; The lower end is connected to device for discharging 11; The function of divider 15 is spent fuel element to be assigned to spentnuclear fuel draw off system; The fuel element of miss the mark burn-up level is assigned to reactor fuel circulation main system, and the function of manifold 7 is to receive the fresh fuel element to the reactor fuel main system that circulates from the fresh fuel system of packing into.
Said spentnuclear fuel draws off system and mainly is made up of isolation ball valve 20 and 22, manifold 21, divider 23,26,29, spent fuel storage tank 30 and spentnuclear fuel device for discharging 31 etc.; Pipeline section between the isolation ball valve 20 and 22 is that atmosphere is switched pipeline section; The function of manifold 21 is respectively the spent fuel element of two reactor systems to be entered atmosphere to switch pipeline section; The function of divider 23 is from main line, to distribute one or more spent fuel elements to spentnuclear fuel sampling jar 24; The function of divider 26 is to be used under the reactor core emptying operating mode; All fuel elements in the reactor core are assigned to refill in the material hold-up tank 34 temporaryly, the function of divider 29 is spent fuel element to be assigned in the different spent fuel storage tanks store.
Said reactor core emptying mainly constitutes by refilling material hold-up tank 34, device for discharging 35, isolation ball valve 39 and divider 40 etc. with charging system again; Refill the fuel element amount that material hold-up tank 34 can hold 1 reactor core; Isolation ball valve 39 charging system and the fresh fuel system of packing into is again kept apart, and the function of divider 40 is that the fresh fuel that the fuel element of feeding again is assigned to the reactor that need feed is again packed in the system.
The ball bed high-temperature gascooled reactor online reloading system that the present invention proposes, fuel element are packed into and the method that draws off reactor core can comprise the steps:
The fresh fuel element of packing into:
The ball bed high-temperature gascooled reactor online reloading system that the present invention proposes, the fresh fuel element enters into the high-pressure helium atmosphere of reactor by air atmosphere, needs to realize the switching of two kinds of atmosphere through one group of spherical isolation ball valve.
The fresh fuel element by charging door 1 through the simplification fresh fuel system of packing into of packing into; Count through crossing 2 pairs of fuel elements of packing into of ball count device; The fresh fuel element of packing into forms a line before isolation ball valve 3; After reaching some (as 200), open isolation ball valve 3, the atmosphere that makes these fresh fuel elements all get into isolation ball valve 3 back is switched pipeline section.
After the fresh fuel element all gets into atmosphere switching pipeline section; Close isolation ball valve 3, the atmosphere that atmosphere is switched in the pipeline section switches to the helium atmosphere under the high pressure by the air atmosphere under the normal pressure, after atmosphere is switched completion; Open isolation ball valve 5, these fresh fuel elements all get into the reactor-loop system.
The ball bed high-temperature gascooled reactor online reloading system that the present invention proposes is in order to save cost, adopts the cover fresh fuel system of packing into, is two reactors supply fresh fuel elements simultaneously.
Through the fuel element of atmosphere switching entering system, can select be respectively two reactors supply fresh fuel elements through divider 4 controls.Fresh fuel element after over-allocation arrives the front of the manifold 7 that gets into the reactor fuel major circulatory system and waits for entering, and after the instruction of receiving entering, the fresh fuel element gets into major circulatory system through manifold 7.
The pipeline of dress fresh fuel element is horizontal by 6 degree angles, is convenient to fuel element and leans on the action of gravity system of packing into of rolling.Fresh fuel element pipeline shape is in the shape of a spiral arranged, to save the space, cabin.
Said ball bed high-temperature gascooled reactor online reloading system, the fresh fuel element behind the entering major circulatory system rises to the top of reactor core 9 through pneumatic mode.
The circulation of reactor fuel element:
Said pebble bed high temperature reactor distributes than uniform power with realization for making full use of fuel element, and pebble bed reactor adopts fuel element repeatedly through the fuel recycle mode of reactor core, makes fuel element reach the target burn-up degree of depth through repeatedly circulating.
Said pebble bed high temperature reactor is at run duration, and fuel element flows in reactor core 9 from top to bottom, discharges out-pile through the discharge duct 10 of reactor bottom at last.The fuel element of discharging from discharge duct 10 at first gets into device for discharging 11, and the 26S Proteasome Structure and Function of device for discharging 11 is referring to patent of invention " ball high temperature gas-cooled reactor integrated fuel discharging device ".
Fuel element from discharge duct 10 discharges; After process device for discharging 11 carries out simplification and broken ball sorting; Undesirable damaged ball and fragment thereof are sorted out; Be transported to broken spherical tank 12 and store, and satisfactory intact fuel element is seen device for discharging off from the good shot conveyance conduit, still in system, continue circulation.
Consider the fuel handling system reliability of operation, device for discharging 11 considers that 100% is subsequent use, and normal operation period has only an operation; If the device for discharging of operation breaks down; Then shutdown waits Awaiting Overhaul, starts an other device for discharging simultaneously, two public 1 broken ball hold-up tanks of device for discharging; Receive the good shot that sub-elects from two devices for discharging with manifold 13 controls, continue in system, to circulate.
The ball bed high-temperature gascooled reactor online reloading system that the present invention proposes; After the intact fuel element that comes out from device for discharging 11 arrives burnup measurement point 14, it is carried out the burn-up level measurement, if this fuel element has reached the target burn-up degree of depth; Then regard it as spent fuel element; Through divider 15 it is entered spentnuclear fuel and draw off system, and do not reach the fuel element of burn-up level, still can continue to return reactor core 9 and circulate once more.
The fuel element of miss the mark burn-up level drives through the helium that helium inlet 16 gets into, and fuel element is thus lifted to the top of reactor 8, circulates once more in the top that relies on gravity to fall into reactor core 9 then.
Said pebble bed high temperature reactor reactor fuel circulation main system; The helium that is used to promote fuel element is by inflow entrance 16 entering fuel riser tubings; Flow out through flow export 17 then; The helium that is used to promote fuel element drives through helium gas circulator and carries out uninterrupted operation continuously, and the helium circuit domestic demand is filtered helium flow.
Helium outlet 17 has certain distance apart from the peak that fuel element promotes; This distance is relevant with the pulling speed of fuel element; The pulling speed of fuel element is 5～10m/s, and helium outlet 17 is 2～5m apart from the distance of the peak that fuel element promotes, and the purpose of this design is the speed when reducing fuel element arrival peak; To reduce wearing and tearing in the elbow; Also can reduce simultaneously the speed when rolling into the reactor core top, the fuel element that buffering is carried and the bump of reactor core top fuel element play the effect of protection fuel element.
Draw off spent fuel element:
The ball bed high-temperature gascooled reactor online reloading system that the present invention proposes; Reach the fuel element of the target burn-up degree of depth through repeatedly circulating; After measurement point 14 is confirmed as spent fuel element through burnup measurement, be discharged to spentnuclear fuel through divider 15 and draw off system, the spent fuel element that draws off need be transported to spent fuel storage tank 30 through twice airlift; Airlift is the helium lifting under high pressure helium atmosphere for the first time, and airlift is the air-lift unit under air atmosphere and atmospheric pressure environment for the second time.
Said ball bed high-temperature gascooled reactor online reloading system is from the spent fuel element of reactor fuel major circulatory system discharge, under the helium that gets into from helium inlet 18 drives; Keep in before rising to the isolation ball valve 20 before atmosphere is switched pipeline section; After reaching some (as 200), open isolation ball valve 20, the spent fuel element of all waits switches pipeline section through the atmosphere that manifold 21 all gets into isolation ball valve 20 back; Close isolation ball valve 20; Carry out atmosphere then and switch, switch to the air atmosphere under the normal pressure by the helium atmosphere under the high pressure, thereby make these spent fuel elements leave the reactor-loop system.
Said pebble bed high temperature reactor spentnuclear fuel draws off system, and the manifold 21 through before the controlled atmospher switching pipeline section can draw off spent fuel element from two reactor systems respectively, makes two public cover spentnuclear fuels of reactors draw off system, to save cost.
Said pebble bed high temperature reactor spentnuclear fuel draws off system; Helium outlet 19 distances of driving fuel element once promote peak has certain distance; This distance is relevant with the pulling speed of fuel element, and the pulling speed of fuel element is 5～10m/s, and helium outlet 19 is 2～5m apart from the distance of the peak that fuel element promotes; Purpose is the speed when reducing fuel element arrival peak; To reduce wearing and tearing in the elbow, also can cushion the fuel element of conveying and the bump of other fuel element simultaneously, play the effect of protection fuel element.
Spent fuel element after atmosphere is switched can make one or more spent fuel elements be transported to sampling jar 24 through control dispenser 23 through divider 23 time as required, then it is transported to the laboratory and researchs and analyses.
Said pebble bed high temperature reactor spentnuclear fuel draws off system, and under the normal operating condition, atmosphere is switched all spent fuel element arrival burnup measurement points 25 in back and carried out burnup measurement, its objective is the graphite component of telling in the spent fuel element.Graphite component is used for reactor core feeds for the first time, can the equilibrium core distribute power, and be the needs of reactor physics.
After burnup measurement point 25 is told graphite component; Can graphite component be transported in the graphite component hold-up tank in the irradiated fuel store storehouse through control dispenser 29 and store, spent fuel element then is transported in the spent fuel storage tank in the irradiated fuel store storehouse and stores.
Said pebble bed high temperature reactor spentnuclear fuel draws off system, and the spent fuel element after switching through atmosphere need be transported to the irradiated fuel store storehouse through the airlift mode, and the driving gas of employing is an air, and drive unit is roots blower or other air driven device.Air 27 gets into the pipeline of losing and promotes spent fuel element from entering the mouth, and flows out from exporting 28 then, through getting back to the roots blower pressurization behind the dust-filtering, accomplishes closed circulation.
Air out 28 distances promote peak has certain distance; This distance is relevant with the pulling speed of fuel element, and the pulling speed of fuel element is 5～10m/s, and air out 28 is 2～5m apart from the distance that fuel element promotes peak; The purpose of this design is the speed when reducing fuel element arrival peak; To reduce wearing and tearing in the elbow, also can cushion the spent fuel element of conveying and the bump of other spent fuel element simultaneously, play the effect of protection spent fuel element.
The pebble bed high temperature reactor spentnuclear fuel that the present invention proposes draws off system, and through second lift, the spent fuel element behind the arrival peak is assigned in each spent fuel storage tank in the irradiated fuel store storehouse through divider 29 to be stored.
The pebble bed high temperature reactor that the present invention mentions; When normal reactor operation; In each hold-up tank, this method of operation can effectively reduce the spentnuclear fuel thermal value in each hold-up tank to spent fuel element, helps the derivation of spentnuclear fuel decay heat with mean allocation; Effectively guarantee the integrality and the security of spent fuel element and hold-up tank thereof; If can not guarantee fully blower fan then to be set the integrality and the security of spent fuel element to carry out air blast cooling through the natural cooling mode, guarantee the complete sum safety of spent fuel element and hold-up tank thereof.
The design of the spent fuel storage tank 30 that the present invention mentions is as shown in Figure 2, and hold-up tank mainly is made up of shell 42 and newel 45, and spent fuel element is stored in the annular cavity between shell 42 and the newel 45, is filled with anti-critical materials in the newel 45.
Because the tank body height of spent fuel storage tank 30 is very high; Break into pieces for avoiding spent fuel element to fall the bottom from the top; Outside newel, be provided with the spiral ladder 43 of losing, the spent fuel element that gets in the spent fuel storage tank falls along the falling sphere ladder, is falling the process of next joint falling sphere ladder 44 from a joint falling sphere ladder 43; Spent fuel element is through slowing down with the collision of falling sphere ladder 44; Through with the continuous collision of falling sphere ladder, the speed when guaranteeing finally to fall the irradiated fuel store pot bottom is lower than the limit value of requirement, thereby guarantees to be transported to the integrality of the spent fuel element in the spent fuel storage tank 30.
The capacity of the spent fuel storage tank 30 that the present invention mentions is very big, the spent fuel element that each hold-up tank can hold reactor operation 1 year even the longer time draws off.
The storage of the spent fuel element that the present invention mentions in hold-up tank 30 is not terminal storage; Under the condition of technical feasibility, can spent fuel element be discharged in hold-up tank 30; Through device for discharging 31 spent fuel element is entered in the spentnuclear fuel transhipment jar; The transhipment jar that spentnuclear fuel will be housed then lifts in the outside transport vehicle of depots, is transported to the appointed place and carries out fuel aftertreatment and terminal storage.
Reactor core emptying and charging again:
The pebble bed high temperature reactor that the present invention mentions under some extreme special operation conditions, possibly require reactor core 9 emptyings, and the process of reactor core emptying is similar with the process that draws off spent fuel element, but does not need burnup measurement.
Under reactor core emptying operating mode, can pressure be dropped to atmospheric pressure in the reactor-loop, the helium in the reactor is transported to the helium jar stores, become air atmosphere by helium atmosphere in the reactor.
The pebble bed high temperature reactor that the present invention mentions; Under reactor core emptying operating mode; After the fuel element of discharging from reactor core 9 carries out broken ball sorting through device for discharging 11; Complete fuel element is seen off from device for discharging 11, need not burnup measurement, directly enters spentnuclear fuel through control dispenser 15 and draws off system.
Enter the fuel element that spentnuclear fuel draws off system, adopt air driven to substitute the helium driving and once promote, lift gas flows into from inflow entrance 18; Flow out from flow export 19, temporary before the isolation ball valve 20 of the fuel element after the lifting before atmosphere is switched pipeline, after reaching some (as 200); Open isolation ball valve 20; Need not atmosphere and switch,, can pneumaticly rise to and refill temporary transient storage in the material hold-up tank 34 through control dispenser 26.
The pebble bed high temperature reactor that the present invention mentions under reactor core emptying operating mode, adopts air driven to refill the fuel element second lift that material is stored, and lift gas flows into from air intake 32, flows out from exporting 33.
Air out 33 has certain distance apart from the second lift peak; This distance is relevant with the pulling speed of fuel element, and the pulling speed of fuel element is 5～10m/s, and air out 33 is 2～5m apart from the distance that fuel element promotes peak; The purpose of this design is the speed when reducing fuel element arrival peak; To reduce wearing and tearing in the elbow, also can cushion the fuel element of conveying and the bump of other fuel element simultaneously, play the effect of protection fuel element.
The inner structure and the spent fuel storage tank 30 that refill material hold-up tank 34 that the present invention mentions are similar, all are the annular cavities of band newel, are filled with anti-critical materials in the newel.Because it is also very high to refill the height of material hold-up tank; Fall damage for avoiding fuel element to fall the bottom from the hold-up tank top; Outside newel, also be provided with the spiral ladder of losing; The fuel element that gets into again in the charge can falls along the falling sphere ladder, the process of falling next joint falling sphere ladder from a joint falling sphere ladder, through slowing down with the collision of falling sphere ladder, guarantees finally to fall the integrality that refills back, material hold-up tank bottom fuel element.
The pebble bed high temperature reactor that the present invention mentions is under reactor core emptying operating mode, because the fuel element that the reactor core emptying draws off does not also reach the target burn-up degree of depth; Its reactivity is very big; The decay heating amount is also very big, and therefore refilling material hold-up tank 34 needs to fill a large amount of anti-critical materials, and adds air blast cooling at hold-up tank; If cooling power can not meet the demands, then also need add the pressure water-cooled.
The pebble bed high temperature reactor that the present invention mentions after reactor core emptying a period of time, satisfies the condition of charging again if reactor reaches, and needs to be temporarily stored in to refill to expect that hold-up tank 34 interior fuel elements are reinstalled reactor core 9 and carry out recycle.
Device for discharging 35 through refilling material hold-up tank 34 bottoms carries out simplification and broken ball sorting with fuel element; Undesirable fuel element and element fragment are separated and are transported to broken spherical tank 36 storages; Intact fuel element then is transported to from device for discharging 35 and refills material riser front; Rise to certain altitude through pneumatic mode, driving gas is an air.
The pebble bed high temperature reactor that the present invention mentions is in refilling the material process, and lift gas flows into from inflow entrance 37, flows out from exporting 38; Flow export 38 distances promote peak has certain distance; This distance is relevant with the pulling speed of fuel element, and the pulling speed of fuel element is 5～10m/s, and air out 29 is 2～5m apart from the distance of the peak that fuel element promotes; The purpose of this design is the speed when reducing fuel element arrival peak; To reduce wearing and tearing in the elbow, also can cushion the fuel element of conveying and the bump of other fuel element simultaneously, play the effect of protection fuel element.
The pebble bed high temperature reactor that the present invention mentions is in refilling the material process; Fuel element after promoting is transported to pack into the atmosphere of system of fresh fuel and switches the pipeline back; Temporary before isolation ball valve 39, the fresh fuel that delivers into the reactor that need feed again through divider 40 and manifold 6 system of packing into.
The pebble bed high temperature reactor that the present invention mentions gets into pack into the fuel element of system of fresh fuel and is transported to the pipeline before the reactor fuel major circulatory system in refilling the material process, waits for getting into the reactor fuel major circulatory system.Behind manifold 7 entering major circulatory systems, through pneumatic mode fuel element is risen to reactor core 9, the driving gas that promote this moment is an air, promotes air from 16 inflows that enter the mouth, from exporting 17 outflows.
The pebble bed high temperature reactor that the present invention mentions is in refilling the material process; Because the height of reactor 8 is very high, and there is not or has only the small amount of fuel element in the charging starting stage reactor core 9, if fuel element is directly fallen the reactor core bottom from reactor roof; The damage of falling that will cause fuel element; Therefore in the process of reactor core 9 chargings, need feed through the core loading charging gear, the design of core loading charging gear is as shown in Figure 3.
The core loading charging gear that the present invention mentions is made up of the more piece supply pipe, and the connection hinge 47 through easy disassembly between the supply pipe 46 connects, and is provided with multilayer baffle plate 48 in the supply pipe 46.
The core loading charging gear that the present invention mentions, fuel element slow down through collision when baffle plate 48 is fallen baffle plate 49, through the final integrality that guarantees to fall back, reactor core bottom fuel element of this frequent collision in supply pipe in the dropping process.
The supply pipe that does not need is pulled down in the variation of material level in can be according to reactor core in the charging process, regulates the length of charging gear, and along with the rising of material level in the reactor core, charging gear will shorten gradually, to the last fill reactor core, accomplishes the material process that refills of reactor core.
The ball bed high-temperature gascooled reactor online reloading system that the present invention proposes has the following advantages:
1. the ball bed high-temperature gascooled reactor online reloading system that proposes of the present invention makes the public cover fresh fuel of the two or more reactors system of packing into draw off system with spentnuclear fuel, not influencing under the prerequisite that reactor system moves, can effectively save cost;
2. the ball bed high-temperature gascooled reactor online reloading system of the present invention's proposition adopts the helium circulator of operation continuously or roots blower under helium atmosphere and air atmosphere, to promote fuel element respectively, effectively improves operational efficiency.Driving gas outlet distance promotes peak has certain distance; Speed in the time of can effectively reducing fuel element arrival peak; Reduce the wearing and tearing in the elbow, the fuel element of buffering conveying simultaneously and the bump of other fuel element play the effect of protection fuel element;
3. the ball bed high-temperature gascooled reactor online reloading system that proposes of the present invention; Spent fuel storage tank expects that with refilling hold-up tank is designed to the annular cavity structure with newel; Can fill anti-critical materials in the newel, newel is provided with spirality falling sphere ladder outward, and spent fuel element falls along the falling sphere ladder; Through slowing down, can guarantee to be transported to the integrality of the fuel element in the hold-up tank with the continuous collision of falling sphere ladder;
4. the ball bed high-temperature gascooled reactor online reloading system that proposes of the present invention; Adopting the core loading charging gear to reactor core when filling with substance again; Be provided with the multilayer baffle plate in the supply pipe of core loading charging gear; Fuel element through slowing down with the continuous collision of baffle plate, guarantees to fall the integrality of back, reactor core bottom fuel element in dropping process.Easy accessibility between the supply pipe, the length that in the charging process, can regulate charging gear according to the variation of material level effectively guarantees the integrality of fuel element in the whole core loading process;
5. the ball bed high-temperature gascooled reactor online reloading system that proposes of the present invention; The device for discharging that adopts in the reactor bottom; Can carry out simplification and broken ball sorting from the fuel element that reactor is discharged simultaneously; Can improve the speed and the reliability of fuel simplification and broken ball sorting, also can effectively reduce cabin altitude simultaneously, save the space, cabin;
6. the ball bed high-temperature gascooled reactor online reloading system that proposes of the present invention; Be provided with a plurality of fuel at the some relevant positions of system and carry dividers and manifold, realize that fuel element is assigned to 2 pipelines and from 2 pipe influx to pipelines from a pipeline in the course of conveying in pipeline.Carry divider and manifold and control system thereof through these fuel elements, can effectively control the conveying of fuel element in system pipeline.
Description of drawings
Fig. 1 is the system schematic of the ball bed high-temperature gascooled reactor online reloading system that proposes of the present invention.
Fig. 2 is the spent fuel element hold-up tank of the pebble bed high temperature reactor that proposes of the present invention.
Fig. 3 is the core loading charging gear of the pebble bed high temperature reactor that proposes of the present invention.
Among Fig. 1,1-charging door, 2-are crossed the ball count device, 3-isolation ball valve, 4-divider, 5-isolation ball valve, 6-manifold; The 7-manifold, 8-reactor, 9-reactor core, 10-discharge duct, 11-device for discharging, the broken spherical tank of 12-, 13-manifold; 14-burnup measurement point, 15-divider, 16-helium inlet, the outlet of 17-helium, 18-helium inlet, the outlet of 19-helium, 20-isolation ball valve; The 21-manifold, 22-isolation ball valve, 23-divider, 24-sampling jar, 25-burnup measurement point, 26-divider, 27-air intake; The 28-air out, the 29-divider, the 30-spent fuel storage tank, the 31-device for discharging, the 32-air intake, 33-air out, 34-refill the material hold-up tank; The 35-device for discharging, the broken spherical tank of 36-, 37-air intake, 38-air out, 39-isolation ball valve, 40-divider.
Among Fig. 2,41-feed pipe, 42-hold-up tank shell, 43-falling sphere ladder 1,44-falling sphere ladder 2,45 newels.
Among Fig. 3,46-supply pipe, 47-connection hinge, 48-falling sphere ladder 1,49-falling sphere ladder 2.
Embodiment
Introduce the embodiment of the ball bed high-temperature gascooled reactor online reloading system of the present invention's proposition in conjunction with accompanying drawing:
The ball bed high-temperature gascooled reactor online reloading system that the present invention proposes, major function be included as pebble bed high temperature reactor pack into the fresh fuel element, draw off emptying that spent fuel element, reactor fuel element repeatedly cycle through reactor core, reactor core fuel element and reload etc.
Said ball bed high-temperature gascooled reactor online reloading system, the fresh fuel element fresh fuel system of packing into of after charging door 1 carries out simplification, packing into after switching through atmosphere, switches to the helium atmosphere under the high pressure by the air atmosphere under the normal pressure.Switch the divider 4 behind the pipeline section through atmosphere, fuel element is assigned to two reactor systems, gets into reactor fuel circulation main systems through manifold 7 then, through the top of helium airlift to reactor core 9, accomplishes pack into the process of reactor core of fresh fuel.
Said ball bed high-temperature gascooled reactor online reloading system; Fuel element from reactor core 9 discharges; Carry out simplification and broken ball sorting through device for discharging 11; The intact fuel element that comes out arrives burnup measurement point 14 and carries out burnup measurement, and the fuel element that reaches the target burn-up degree of depth draws off reactor fuel circulation main system through divider 15, gets into spentnuclear fuel and draws off system; The fuel element airlift that does not reach the target burn-up degree of depth circulates to the top of reactor core 9 once more, up to reaching the target burn-up degree of depth.
Said ball bed high-temperature gascooled reactor online reloading system; Entering spent fuel element that spentnuclear fuel draws off system at first once promotes through helium and arrives atmosphere and switch before the isolation ball valve 20 of pipeline temporary; Get into atmosphere then and switch pipeline, after accomplishing the atmosphere switching, switch to the air atmosphere under the normal pressure by the helium atmosphere under the high pressure; Promote through air secondary again; Be transported in the spent fuel storage tank 30 and store, can the spent fuel element in the spent fuel storage tank 30 be moved away through spentnuclear fuel device for discharging 31 when needed, carry out aftertreatment and terminal storage.
Said pebble bed high temperature reactor need be with the fuel element emptying in the reactor core 9 under some extreme operating conditions, and the process of emptying is similar with the process that draws off spent fuel element.At first with reactor 8 releases, helium is stored in the helium hold-up tank, reactor atmosphere switches to the air atmosphere under the normal pressure.Fuel element in the reactor core 9 need not burnup measurement after carrying out simplification and broken ball sorting through device for discharging 11, directly enters spentnuclear fuel and draws off system; After the process air once promotes; Need not atmosphere and switch, directly carry out air secondary and promote, be transported to refill in the material hold-up tank 34 and store.
Under the needs operating mode, can the fuel element that refill in the material hold-up tank 34 be reinstalled reactor core 9.In this process; The fuel element that refills in the material hold-up tank 34 carries out simplification and broken ball sorting through device for discharging 35; Intact fuel element to the fresh fuel back that the atmosphere of system switches pipeline of packing into, is respectively charged into two reactor systems through divider 40 and manifold 6 through the air airlift.After getting into the reactor fuel major circulatory system,,, accomplish the material process that refills of reactor core then through the core loading charging gear reactor core 9 of packing into through the top of air airlift to reactor 8.
The ball bed high-temperature gascooled reactor online reloading system of the present invention's design; Need with the identical HTHP helium-atmosphere of reactor operation operating mode under; Carry out full-scale verification experimental verification; After process experimental verification system is reliable, be used further on the actual reactor, to improve the reliability and the security of reactor operation.
Claims (1)
1. ball bed high-temperature gascooled reactor online reloading system is characterized in that, this ball bed high-temperature gascooled reactor online reloading system contains charging door (1), crosses ball count device (2), first isolation ball valve (3), and first divider (4),
Second isolation ball valve (5), first manifold (6), second manifold (7), reactor (8), reactor core (9); Discharge duct (10), first device for discharging (11), broken spherical tank (12), the 3rd manifold (13); First burnup measurement point (14), second divider (15), first helium inlet (16), first helium outlet (17); Second helium inlet (18), second helium outlet (19), the 3rd isolation ball valve (20)
The 4th manifold (21), the 4th isolation ball valve (22), the 3rd divider (23), sampling jar (24); Second burnup measurement point (25), the 4th divider (26), first air intake (27), first air out (28); The 5th divider (29), spent fuel storage tank (30), device for discharging (31), second air intake (32); Second air out (33) refills material hold-up tank (34), second device for discharging (35), broken spherical tank (36); The 3rd air intake (37), the 3rd air out (38), the 5th isolation ball valve (39), the 6th divider (40);
Said charging door (1) connected ball count device (2), crossed ball count device (2) and connected first isolation ball valve (3), and first isolation ball valve (3) connects first divider (4), and first divider is divided into two-way after (4),
Each Lu Douyou of said two-way: second isolation ball valve (5) links to each other with above-mentioned first divider (4), and said second isolation ball valve (5) connects first manifold (6), and first manifold (6) connects second manifold (7); Reactor core (9) is positioned at the inside of reactor (8), and reactor core (9) bottom connects discharge duct (10), and discharge duct (10) bottom connects first device for discharging (11); First device for discharging (11), 4 pipelines that come out, 2 pipelines connect broken spherical tank (12), and 2 pipelines connect the 3rd manifold (13) in addition; The 3rd manifold (13) connects first burnup measurement point (14); First burnup measurement point (14) connects second divider (15), and second divider (15) connects second manifold (7), and second manifold (7) connects first helium inlet (16); First helium inlet (16) connects first helium outlet (17), first helium outlet (17) coupled reaction heap (8); Second divider (15) connects second helium inlet (18), and second helium inlet (18) connects second helium outlet (19), and second helium outlet (19) connects the 3rd isolation ball valve (20);
Two the 3rd isolation ball valve (20) of said two-way are connected to the 4th manifold (21) jointly;
Above-mentioned the 4th manifold (21) back connects the 4th isolation ball valve (22) through a pipeline; The 4th isolation ball valve (22) connects the 3rd divider (23), the 3rd divider (23) back two pipelines that come out, and a pipeline connects sampling jar (24); Another root pipeline connects second burnup measurement point (25); Second burnup measurement point (25) connects the 4th divider (26), and the 4th divider (26) back is divided into two pipelines, and a pipeline connects first air intake (27); Said first air intake (27) connects first air out (28); First air out (28) connects the 5th divider (29), and the 5th divider (29) connects spent fuel storage tank (30), spent fuel storage tank (30) the bottom materials device (31) of unloading; Another root pipeline of the 4th divider (26) back connects second air intake (32); Second air intake (32) connects second air out (33); Second air out (33) connects and to refill material hold-up tank (34), and the bottom that refills material hold-up tank (34) connects second device for discharging (35), from second device for discharging (35), two pipelines that come out; A pipeline connects broken spherical tank (36); Another root pipeline connects the 3rd air intake (37), and the 3rd air intake (37) connects the 3rd air out (38), and the 3rd air out (38) connects the 5th isolation ball valve (39); The 5th isolation ball valve (39) connects the 6th divider (40), and the 6th divider (40) connects first manifold (6) in each road of said two-way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101178054A CN101083153B (en) | 2007-06-25 | 2007-06-25 | Ball bed high-temperature gascooled reactor online reloading system and functional subsystem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101178054A CN101083153B (en) | 2007-06-25 | 2007-06-25 | Ball bed high-temperature gascooled reactor online reloading system and functional subsystem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101083153A CN101083153A (en) | 2007-12-05 |
| CN101083153B true CN101083153B (en) | 2012-07-25 |
Family
ID=38912619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101178054A Active CN101083153B (en) | 2007-06-25 | 2007-06-25 | Ball bed high-temperature gascooled reactor online reloading system and functional subsystem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101083153B (en) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777396B (en) * | 2010-01-28 | 2012-02-08 | 清华大学 | Ball flow pipeline locker of pebble bed high temperature reactor |
| CN102081059B (en) * | 2010-11-25 | 2013-02-06 | 哈尔滨工程大学 | Forced-convection heat transfer experimental device for strong inner heat source containing porous medium passage |
| CN102201269B (en) * | 2011-04-18 | 2013-06-05 | 清华大学 | Spent fuel loading device for peddle-bed high-temperature gas cooled reactor |
| CN102750996B (en) * | 2012-06-29 | 2013-05-01 | 清华大学 | Grouped pneumatic lifting system and method for pebble-bed reactor fuel elements |
| CN103578575B (en) * | 2012-07-25 | 2016-08-31 | 李正蔚 | Pebble-bed reactor |
| CN102855951B (en) * | 2012-09-27 | 2015-04-22 | 清华大学 | Loading and temporary storage device for new fuel of pebble-bed high-temperature reactor |
| CN102881343B (en) * | 2012-09-29 | 2015-03-04 | 清华大学 | Temporary storage device for discharged spent fuel of pebble-bed high-temperature reactor |
| CN103745757B (en) * | 2014-01-24 | 2016-02-24 | 清华大学 | A kind of steering gear being applied to high temperature gas cooled reactor |
| JP6484390B2 (en) * | 2015-12-31 | 2019-03-13 | 清華大学Ｔｓｉｎｇｈｕａ Ｕｎｉｖｅｒｓｉｔｙ | Spent fuel negative pressure unloading system for nuclear power plants |
| CN105427909B (en) * | 2015-12-31 | 2017-07-07 | 清华大学 | A kind of Nuclear Power Station's Exhausted Fuels negative pressure discharge system |
| CN105784257B (en) * | 2016-03-10 | 2018-04-17 | 西安交通大学 | A kind of minor diameter ball bed high-temperature helium pressure drop measuring device and method |
| CN108665983B (en) * | 2017-03-29 | 2020-08-18 | 中广核（北京）仿真技术有限公司 | Generation method and device of simulated high-temperature gas cooled reactor fuel ball system |
| CN110097989B (en) * | 2018-01-31 | 2022-11-18 | 中国辐射防护研究院 | Graphite dust pollution removing method for pebble-bed high-temperature gas cooled reactor |
| CN110097979B (en) * | 2018-01-31 | 2022-11-18 | 中国辐射防护研究院 | Graphite dust collecting device for ball bed high-temperature gas cooled reactor |
| CN109801725B (en) * | 2018-12-07 | 2020-07-07 | 清华大学 | Single-way device applied to ball bed pile |
| CN109509562B (en) * | 2018-12-07 | 2023-09-19 | 中国科学院上海应用物理研究所 | Reactor core structure, molten salt pebble bed reactor, fuel management method of molten salt pebble bed reactor and reactor core loading method |
| CN112309595B (en) * | 2020-11-06 | 2022-06-14 | 西安热工研究院有限公司 | Device and method for high-temperature gas cooled reactor core subregion loading |
| CN112397207B (en) * | 2020-11-20 | 2023-01-31 | 西安热工研究院有限公司 | Testing device for functional verification of absorption ball shutdown system |
| CN113505871B (en) * | 2021-04-19 | 2023-12-15 | 华能山东石岛湾核电有限公司 | Counting method, device and storage medium |
| CN113188835B (en) * | 2021-04-21 | 2022-10-11 | 华能伊敏煤电有限责任公司汇流河热电分公司 | System for detecting PH value of thermal power plant |
| CN113205897B (en) * | 2021-04-29 | 2022-11-15 | 西安热工研究院有限公司 | Novel lifting device for spherical fuel of high-temperature gas cooled reactor |
| CN113488209B (en) * | 2021-06-01 | 2022-10-14 | 华能山东石岛湾核电有限公司 | Sliding block type ball conveying device and method for pebble bed type high-temperature gas cooled reactor |
| CN113643834B (en) * | 2021-08-11 | 2022-10-04 | 华能山东石岛湾核电有限公司 | Configuration implementation system and implementation method for fuel ball lifting time of high-temperature gas cooled reactor |
| CN114220569B (en) * | 2021-11-11 | 2022-10-25 | 华能核能技术研究院有限公司 | Compact ball bed high temperature gas cooled reactor primary loop device |
| CN114715671B (en) * | 2022-04-19 | 2023-11-28 | 华能山东石岛湾核电有限公司 | Negative pressure adjustment method of unloading bulb tube based on spent fuel storage system |
| CN114898906B (en) * | 2022-06-09 | 2023-05-16 | 华能核能技术研究院有限公司 | Ball passing device and ball bed type high-temperature reactor with same |
| CN115083632B (en) * | 2022-06-22 | 2023-08-22 | 华能核能技术研究院有限公司 | High-temperature gas cooled reactor and waste heat discharging system |
| CN115083642B (en) * | 2022-06-30 | 2023-08-22 | 华能核能技术研究院有限公司 | High-temperature gas cooled reactor fuel element conveying system and high-temperature gas cooled reactor system |
| CN116137189A (en) * | 2023-02-24 | 2023-05-19 | 华能山东石岛湾核电有限公司 | Method and device for judging whether fuel element overtime is dropped |
| CN117038128A (en) * | 2023-07-07 | 2023-11-10 | 华能核能技术研究院有限公司 | Ball bed type reactor fuel element counting instrument mounting device |
-
2007
- 2007-06-25 CN CN2007101178054A patent/CN101083153B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101083153A (en) | 2007-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101083153B (en) | Ball bed high-temperature gascooled reactor online reloading system and functional subsystem | |
| CN101740147B (en) | Dry vertical shaft storage system for spent fuel of nuclear power station and storage method thereof | |
| CN101315815B (en) | Method and device for fast breeding and converting nuclear fuel | |
| Reutler et al. | The modular high-temperature reactor | |
| CN108511089B (en) | Molten salt reactor loading and unloading material system | |
| CN102412000B (en) | Vertical shaft storage system for spent fuel of nuclear power station | |
| WO2024001740A1 (en) | Fuel element delivery system for high-temperature gas-cooled reactor, and high-temperature gas-cooled reactor system | |
| CN1447342A (en) | Second shutdown system of absorption ball applicable to gas-cooled reactor | |
| CN114883019A (en) | High-temperature gas cooled reactor fuel loading and unloading system and method | |
| CN115171927A (en) | Absorbent ball shutdown system and absorbent ball transport method | |
| CN105427909A (en) | Nuclear power station spent fuel negative pressure discharging system | |
| CN102201269B (en) | Spent fuel loading device for peddle-bed high-temperature gas cooled reactor | |
| CN101777397B (en) | Reactor core ball feeding device of high temperature gas cooled reactor | |
| CN218333143U (en) | Non-stop pile changing system for ball bed type high-temperature gas cooled reactor | |
| CN102208221B (en) | Tank plug claw for nuclear power station spent fuel storage tank | |
| CN115410733A (en) | Hanging-basket type fuel ball transmission system for high-temperature gas cooled reactor | |
| WO2019085712A1 (en) | Solar thermal power generation system and heat transfer and obtaining method | |
| CN103021486B (en) | Multifunctional spent fuel transportation rack of nuclear power plant and discharging and cooling method | |
| US3293137A (en) | Power generation from nuclear reactor plant | |
| CN211555487U (en) | Full underground compact reactor refueling device | |
| RU2316067C1 (en) | Solid-cooled thermal-neutron power reactor | |
| CN106297923A (en) | A kind of Spent Fuel Pool of pair of pond design | |
| CN208752973U (en) | A kind of offline cooling back installation for spent fuel transport container | |
| CN214336343U (en) | Novel loop for transferring water between fuel transfer cabin and loading well of nuclear power station | |
| CN109887628A (en) | A kind of weary pond of PWR nuclear power plant and refuelling pool integrated apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210120 Address after: 100193 building 26, Zhongguancun Software Park, 8 Dongbeiwang West Road, Haidian District, Beijing Patentee after: CHINERGY Co.,Ltd. Address before: 100084 mailbox 100084-82, Beijing City Patentee before: TSINGHUA University |
|
| TR01 | Transfer of patent right |