CN202563900U - Uranium-plutonium fuel sphere bed type reactor - Google Patents
Uranium-plutonium fuel sphere bed type reactor Download PDFInfo
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- CN202563900U CN202563900U CN2012201950826U CN201220195082U CN202563900U CN 202563900 U CN202563900 U CN 202563900U CN 2012201950826 U CN2012201950826 U CN 2012201950826U CN 201220195082 U CN201220195082 U CN 201220195082U CN 202563900 U CN202563900 U CN 202563900U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a uranium-plutonium fuel sphere bed type reactor which is a cylinder body composed of a reactor inner casing and a reactor outer casing. A sphere bed type nuclear reactor core is arranged in the center of the reactor inner casing, a uranium fuel sphere feed tank and a plutonium fuel sphere feed tank are arranged outside the top end of the reactor outer casing, a reactor nuclear fuel sphere discharging valve is arranged at the bottom of the nuclear reactor core, a central area primary circuit cooling flow guide pipe is arranged in the nuclear reactor core, nuclear fuel spheres are filled around the central area primary circuit cooling flow guide pipe, a primary circuit heat exchanger and a second circuit heat exchanger are arranged between the reactor inner casing and the reactor outer casing, secondary circuit circulation water is filled between the reactor inner casing and the reactor outer casing, and inner thermal insulation layers are arranged between the primary circuit heat exchanger and the reactor outer casing and between the secondary circuit heat exchanger and the reactor outer casing. The uranium-plutonium fuel sphere bed type reactor enables nuclear energy to be safe, efficient, environmental-protection, clean, durable, sufficient, reliable, convenient, cheap and ideal energy in the future. Thus, a fifth generation super-safe and high-efficiency reactor which people wishes for a long time can be really achieved.
Description
Technical field
The utility model relates to a kind of nuclear reactor, particularly uranium, plutonium mixes the spherical-bed reactor that nuclear fuel pellet is added in not shutdown.
Background technology
Nuclear energy is the mother of the permanent energy in future.But present traditional core nuclear reactor art exists serious design view to misspoke mistake, inevitably must cause various serious nuclear accident.Although people take various measures to remedy, attempt avoids taking place serious nuclear accident.But because design concept fails fundamentally to break through the old system design and the constraint of structural design.Can not all nuclear accident hidden danger of slap-up elimination.Must also serious nuclear accident can take place.Ultra safety of the 5th generation " nuclear fuel spherical-bed reactor is added in not shutdown " is though proposed the ultra way of resolving safely.But still fail to solve uranium, the automatic mixed packing problem of plutonium nuclear fuel pellet.The difficult problem of the repetition recycling utilization of unresolved nuclear fuel also.In order to improve the repetition regeneration efficient of nuclear fuel, reduce nuke rubbish.Prolong nuclear fuel supply chain and nuclear fuel serviceable life, the whole world is needed badly and found a kind of ultra safety, and is automatically totally-enclosed, do not have any radioactive leak, and highly effective reaction that can cyclic regeneration is piled.Meet the arrival of nuclear energy New Times.
Summary of the invention
The purpose of the utility model is exactly to the problems referred to above, a kind of can satisfy uranium, the regeneration of plutonium mixing circulation is provided, the ultra safe and efficient reactor of the spherical-bed of totally-enclosed automatic filling nuclear fuel pellet.
The purpose of the utility model is achieved in that
Uranium, plutonium double fuel spherical-bed reactor are the right cylinders be made up of reactor inner casing and pile envelope.The center that is positioned at the reactor inner casing is provided with the nuclear reactor core of spherical-bed.A uranium fuel ball service tank and a plutonium fuel sphere service tank are housed outside the top of pile envelope; Uranium fuel ball service tank and plutonium fuel sphere service tank are isolated each other airtight casing; Subsequent use uranium fuel ball is housed in the uranium fuel ball service tank, subsequent use plutonium fuel sphere is housed in the plutonium fuel sphere service tank.Uranium fuel ball service tank bottom is equipped with uranium fuel ball feed gate, and plutonium fuel sphere service tank bottom is equipped with plutonium fuel sphere feed gate; The feed pipe of the feed pipe of uranium fuel ball feed gate control and the control of plutonium fuel sphere feed gate is combined into a pipe, joins through feed pressure transitional storehouse, spherical nucleus fuel-feed buffering pipe that is communicated with successively and the spherical nucleus fuel distributor of installing above the nuclear reactor core.The bottom of nuclear reactor core is provided with reactor nuclear fuel pellet discharge gate, and discharge control gate below links to each other with the nuclear fuel pellet discharge line.The discharge pressure transition storehouse of discharge line through its below is connected to spentnuclear fuel dress and receives case.At the central of nuclear reactor core is center one circuit cools mozzle, has filled up nuclear fuel pellet around the one circuit cools mozzle of center.Around the one circuit cools mozzle of center, outwards and between the nuclear reactor core inwall be evenly distributed with many reactor control rod conduits.Near the reactor core outer wall is the cylindrical shape control panel, and the cylindrical shape control panel is outward a circuit cools layer, and a circuit cools layer is outward the cold intermediate heat exchanger of a loop sodium, and the cold intermediate heat exchanger of a loop sodium is near the reactor inner casing.Be provided with one between reactor inner casing and the pile envelope, secondary circuit heat exchanger and be full of secondary circuit recirculated water; One, is provided with inner thermal insulating layer between secondary circuit heat exchanger and the pile envelope.
In the right cylinder bottom of forming by reactor inner casing and pile envelope, a loop major cycle valve B, a loop main circulation pump A, and a loop major cycle valve A forms first cover, one loop major circulatory system; One loop major cycle valve C, a loop main circulation pump B, and a loop major cycle valve D forms second cover, one loop major circulatory system.Secondary circuit recirculated water is full of the whole spaces between pile envelope and the reactor inner casing.
The effect of the utility model is:
Because the design of the utility model is to add in the ultra safe not shutdown of the 5th generation to increase by a cover plutonium fuel sphere feeding device on the basis of nuclear fuel spherical-bed reactor; That is to say that block response heap has two cover feeding devices; This system can realize the automatic filling of two kinds of nuclear fuel pellets; Realize rational uranium, the control of plutonium proportioning, uranium, rationally evenly distributing of two kinds of nuclear fuel pellets of plutonium are controlled on all right realization response heap ball bed.Also can two kinds of different IPs fuel sphere follow procedures be required to be assigned to the accurate position of spherical-bed reactor core, harmonious with the thermal response that ensures reactor core.Thereby realizing uranium, the recycle of plutonium double fuel mixed regeneration, nuclear fuel pellet, whole technical requirements of the reactor of ultra safe and efficient rate are added in totally-enclosed not shutdown.The spherical-bed reactor that the uranium plutonium mixes not shutdown interpolation nuclear fuel pellet really becomes safety in future, efficient, environmental protection by nuclear energy, cleaning, for a long time, the desirable energy of abundance, convenient and reliable, cheapness.It is more and more serious with pollution on the environment to skyrocket in the fossil fuel price, and under fossil fuel uses fewer and fewer the property condition.The 5th generation ultra safe uranium, plutonium double fuel ball reprocessing cycle automatic charge spherical-bed reactor, just have huge and permanent especially economical and practical value.Be enough to satisfy following 3300 human demands to ultra safe nuclear power.Real realize human for a long time to the expectation dreamed of of ultra safety, high-level efficiency reactor of the 5th generation.
Description of drawings
Fig. 1 is the utility model uranium plutonium double fuel spherical-bed reactor system synoptic diagram.
Fig. 2 is the A-A transverse section inner structure synoptic diagram among Fig. 1.
Embodiment
The right cylinder that uranium plutonium double fuel spherical-bed reactor shown in Figure 1 is made up of the reactor inner casing 16 and the pile envelope 15 of left and right sides two hemispheres.A uranium fuel ball service tank 23 and a plutonium fuel sphere service tank 24 are housed outside the top of pile envelope 15, and they have firm support to be fastened on the body frame 001 for anti-earthquake.Uranium fuel ball service tank 23 is isolated each other airtight casing with plutonium fuel sphere service tank 24, and subsequent use uranium fuel ball 22 is housed in the uranium fuel ball service tank 23, and subsequent use plutonium fuel sphere 25 is housed in the plutonium fuel sphere service tank 24.Uranium fuel ball service tank 23 bottoms are equipped with uranium fuel ball feed gate 21, and plutonium fuel sphere service tank 24 bottoms are equipped with plutonium fuel sphere feed gate 26; The feed pipe of the feed pipe of uranium fuel ball feed gate 21 controls and 26 controls of plutonium fuel sphere feed gate is combined into a sealed tube, joins with the spherical nucleus fuel distributor of installing above the nuclear reactor core 11 33 through feed pressure transitional storehouse 28, the spherical nucleus fuel-feed buffering pipe 14 that is communicated with successively.The effect of uranium fuel ball feed gate 21 and plutonium fuel sphere feed gate 26 is inlet amounies of the subsequent use uranium of control, plutonium nuclear fuel pellet.Between sealed tube that is connected with uranium fuel ball feed gate 21 and plutonium fuel sphere feed gate 26 and the feed pressure transitional storehouse 28 charging separation valve door A27 is arranged, between feed pressure transitional storehouse 28 lower ends and the ball-type nuclear fuel blanking buffering pipe 14 charging separation valve door B29 is arranged.Under the control of spherical nucleus fuel distributor 33, automatic equalization be assigned in the spherical-bed nuclear reactor core 11 precisely position, to improve the reaction efficiency of nuclear fuel.
The bed rearrangement nuclear reactor is to build on accident nuclear fuel cooling pond 2, when needing maintenance or when catastrophic failure and under the accident conditions, can the whole nuclear fuel pellet follow procedures controls in the reactor be discharged in the accident nuclear fuel cooling pond 2.Can ensure being perfectly safe of maintainer and equipment.
Sectional drawing shown in Figure 2 is the section structure cut-open view of reactor.The center outwards is successively: a circuit cools mozzle 36 at reactor core center, be used to improve reactor core thermal equilibrium degree, and filled up nuclear fuel pellet 003 around the circuit cools mozzle 36.Around a circuit cools mozzle 36, outwards and between nuclear reactor core 11 inwalls be evenly distributed with a plurality of control rod sleeve pipes 34, in control rod sleeve pipe 34, be with reactor control rod 13 (seeing shown in Figure 1).Near nuclear reactor core 11 outer walls are cylindrical shape control panels 12 of reactor, and this is one of important difference of the utility model and other reactor.Reactor core 11 outer walls are provided with a loop sodium cooling layer 005, are used to improve the regulation and control performance of reactor.Cylindrical shape control panel 12 is immersed in the cooling medium of a loop sodium cooling layer 005.The cold intermediate heat exchanger 004 of one loop sodium is positioned between a reactor inner casing 16 (being the interval absciss layer) and the loop sodium cooling layer 005; Be used for preventing because the cooling medium of a loop sodium cooling layer 005 breaks at separation layer and directly sneaks into secondary circuit recirculated water 7, cause the radioactive contamination accident that leaks.Between reactor inner casing 16 and the pile envelope 15 be one, secondary circuit heat exchanger 10, and be full of secondary circuit recirculated water 7.In pile envelope 15 inboards inner thermal insulating layer 002 being arranged, is insulation screen layer 35 outside the pile envelope 15, is processed by insulation and shielding property excellent insulating and radiation proof material.Prevent that further nuclear radiation from leaking, do not leak to guarantee nuclear radiation.Reactor main support 001 is the base carrier of reactor, and all equipment and parts all are fixed on the reactor main support 001, the more double-deck basis of main support 001 and antidetonation is linked to each other the safe operation that the bed rearrangement reactor just can be firm.
Concrete scheme details below in conjunction with Figure of description explanation the utility model:
Among Fig. 1, in the right cylinder bottom of forming by reactor inner casing 16 and pile envelope 15, a loop major cycle valve B4, a loop main circulation pump A5, and a loop major cycle valve A6 forms first cover, one loop major circulatory system; One loop major cycle valve C38, a loop main circulation pump B39, and a loop major cycle valve D41 forms second cover, one loop major circulatory system.The first cover one loop major circulatory system and second cover, one loop major circulatory system constitute a subsequent use each other loop binary cycle system; Thereby realize a cover one loop major circulatory system when maintenance, an another set of loop major circulatory system still can keep reactor to run well.Therefore can ensure the reactor long-time running.Do not need shutdown just can carry out the maintenance of a loop major circulatory system.
Secondary circuit recirculated water 7 is full of the whole spaces between pile envelope 15 and the reactor inner casing 16 among Fig. 1.Between pile envelope 15 and inner casing 16, be provided with one, secondary circuit heat exchanger 10, secondary circuit recirculated water 7 surrounds one, secondary circuit heat exchanger 10, effect be increase by one, the secondary circuit heat exchanger effectiveness.Reflection horizon 37 around nuclear reactor core 11 is outside equipped with is used to improve nuclear fuel pellet 003 reactive and harmonious on spherical-bed nuclear reactor core 11, increases the burn-up level of nuclear reactor core 11 peripheral nuclear fuel pellets.Cylindrical shape control panel 12 is arranged on nuclear reactor core 11 and all around between the reflection horizon 37; When regulating and control heat output of reactor or needing shutdown; With cylindrical shape control panel 12 insertion nuclear reactor cores 11 with all around between the reflection horizon 37; Not only can absorb the neutron of nuclear fuel emission in the nuclear reactor core 11, and block the neutron reflection effect in reflection horizon 37 all around, play the effect of more effective regulating and controlling effect and controlling depth shutdown.Be with reactor control rod 13 in the control rod sleeve pipe 34, reactor control rod 13 is as the reaction power of regulating nuclear reactor core 11.Its effect is when nuclear reactor core 11 filling nuclear fuel pellets 003, to keep reactor control rod 13 that the space of unimpeded insertion and extraction is arranged.Control rod sleeve pipe 34 is to process with stainless steel, and porous is arranged around the tube wall, and the thermal dissipating path of nuclear fuel and a circuit cools agent mozzle 36 of center, a loop play the effect that improves reactor thermal balance property jointly in the double as nuclear reactor core 11 simultaneously.
Steam generation district 17 be between pile envelope 15 tops belows and reactor inner casing 16 top custom-designed one than large space.Reactor inner casing 16 top lower inner are secondary circuit steam dryers 31, be positioned at nuclear reactor core 11 hot-fluids directly over, be the most concentrated heating center of a loop heating power.Can make it to become dry water vapour through steam dryer 31 heating superheated vapors, simultaneously the heat in a loop concentrated the steam generation district of heating secondary circuit, improve the utilization efficiency of heat energy of reactor.On steam dryer 31, be provided with steam (vapor) outlet 18, deliver to main Turbo-generator Set generating through steam (vapor) outlet 18 through the superheated vapor of steam dryer 31 heating.On steam (vapor) outlet 18, be equipped with vapor pressure safety valve 30, be used for vapor pressure exhaust steam when too high.
Simultaneously, steam (vapor) outlet 18 is provided with the small-sized Turbo-generator Set 20 of providing for oneself, and small-sized providing for oneself between Turbo-generator Set 20 and the steam (vapor) outlet 18 is equipped with steam control valve 19.Under accident conditions; When other standby power supply failover all have a power failure, open the steam control valve 19 on the steam (vapor) outlet 18, HP steam is delivered to the small-sized Turbo-generator Set 20 of providing for oneself; Need not other utility appliance direct starting-generating unit immediately; Whole process only needs just can realize normal power supply several seconds, till the complete shutdown cooling of reactor, all can be the reactor circulation system reliable service power is provided.Only this item just can improve the security of nuclear power station greatly.This direct emergency generator group than other any type of standby power supply more reliably, more convenient, more simple, more cheap.The small-sized Turbo-generator Set 20 of providing for oneself is integrated into a guest machine pack module with electric regulation and control module, can improves the reliability of subsequent use unit and the reduced volume that reduces cost more.
Right cylinder top being made up of reactor inner casing 16 and pile envelope 15 is provided with spare core fuel sphere service tank 22, and spare core fuel sphere 21 is housed in the nuclear fuel pellet service tank 22.Subsequent use uranium fuel ball 21 is rradiated nuclear fuels not, in the spare core fuel sphere service tank 22 the nuclear poison suppressant is housed, and guarantees that nuclear fuel is in the state of being perfectly safe in the case.The effect of the charging control gate 23 of spare core fuel sphere service tank 22 bottoms is inlet amounies of control spare core fuel sphere 21; To avoid too much spare core fuel sphere 21 to enter into charging separation valve door A27; Because of causing charging separation valve door A27, obstruction can't close, and the situation that appearance possibly squeezed broken spare core fuel sphere 21.The acting in conjunction of the charging separation valve door A27 of nuclear fuel pellet, feed pressure transitional storehouse 28 and charging separation valve door B29 is: when reactor need add nuclear fuel pellet, cooperatively interact; Under the stable situation of a circuit pressure in keeping reactor inner casing 16, realize the nuclear fuel pellet that interpolation is new.Its course of action is: earlier the charging control gate 23 of nuclear fuel pellet is opened, from spare core fuel service tank 22, emitted in the closed conduit between a certain amount of spare core fuel sphere 21 entering charging control gates 23 and the charging separation valve door A27.At this moment close charging control gate 23, open charging separation valve door A27 then, spare core fuel sphere 21 falls into feed pressure transitional storehouse 28 under action of gravity.After nuclear fuel pellet gets into feed pressure transitional storehouse 28 fully; Close charging separation valve door A27; Confirm that it is closed and open charging separation valve door B29 after tight, nuclear fuel pellet falls into spherical nucleus fuel blanking buffering pipe 14 through charging separation valve door B29 under action of gravity.In the nuclear fuel blanking buffering pipe 14 cushioning fender that slows down the nuclear fuel pellet falling speed is arranged, effect is to slow down nuclear fuel pellet at ducted sinking speed, in case because the excessive nuclear fuel pellet that causes in the reinforced process of impulsive force is damaged.After spare core fuel sphere 21 in confirming feed pressure transitional storehouse 28 all falls into spherical nucleus fuel blanking buffering pipe 14, close charging separation valve door B29.Circuit pressure in keeping reactor inner casing 16 is stable, and under the situation of any radiomaterial that do not leak, accomplishes the interpolation process of primary nuclear fuel ball smoothly.Because the limited amount of the nuclear fuel pellet that once adds, reinforced process can by predetermined operation programs, realize repeatedly adding automatically the repetitive operation of nuclear fuel under the control of intelligence control system.Till reaching predetermined loading amount.Be provided with the buffer deceleration plate washer in the spherical nucleus fuel blanking buffering pipe 14,, avoid nuclear fuel pellet too fast, impact excessively, cause the breakage of spare core fuel sphere 21 because of falling speed to slow down the falling speed of nuclear fuel pellet.In reactor inner casing 16, be provided with reactor core regulating and controlling mechanism 32; It mainly acts on is the reactor control rod 13 and reactor core 11 cylindrical shape control panel 12 on every side in control and the driving reactor core 11, with the operation thermal power and the shutdown control of regulation and control reactor core 11.In reactor inner casing 16, also be provided with spherical nucleus fuel distributor 33, its effect be with the nuclear fuel pellet of sending here by spherical nucleus fuel blanking buffering pipe 14 according to predefined requirement, be distributed to the relevant position in the reactor core 11.
The discharge process of spentnuclear fuel ball 40 is similar with the operating principle of reinforced process.When discharge not, drainage line gate 9, discharge valve A42 and discharge valve B44 close, and do not leak with the pressure that keeps a loop; When needs are discharged spentnuclear fuel ball 40.Open drainage line gate 9 earlier; Rely on action of gravity that the spentnuclear fuel ball 40 that a certain amount of walkthrough in nuclear reactor core 11 bottoms goes out is discharged, get into nuclear fuel pellet discharge line 8, close drainage line gate 9 then; Open discharge valve A42; Spentnuclear fuel ball 40 gets into discharge pressure transition storehouse 43 through discharge valve A42, after the nuclear fuel pellet 40 of confirming whole walkthroughs all gets into pressure transition storehouses 43, discharge valve A42 is closed again.At this moment the spentnuclear fuel in the accident nuclear fuel cooling pond 2 dress being received case 3 receives case track 1 through the spentnuclear fuel dress and moves to the spentnuclear fuel ball and discharge flopgate 45 1 sides; And then open discharge valve B44 and spentnuclear fuel ball and discharge flopgate 45, spentnuclear fuel ball 40 is entered the spentnuclear fuel dress receive in the case 3.Spentnuclear fuel ball 40 is just keeping realizing once discharging operation smoothly under the stable situation of reactor inner casing 16 internal pressures.Because a withdrawal rate is limited, the discharge action can repeatedly repeat.Still can keep a circuit pressure stable, and "dead" leakage.
Under accident conditions, discharge all nuclear fuel pellets in the reactor as if need; In such cases; Only need that the spentnuclear fuel ball is discharged flopgate 45 and be put into accident nuclear fuel cooling pond 2 one sides, still press discharge program repetitive operation drainage line gate 9, discharge valve A42 and discharge valve B44, still can guarantee under the situation that radiating matter does not leak outside; Nuclear fuel pellet in the reactor all is discharged in the accident nuclear fuel cooling pond 2; Realization is taken away the firewood under the cauldron, and fundamentally thoroughly eradicates the root of nuclear accident, guarantees that the nuclear power station surrounding environment does not receive any pollution.
Because the utility model has adopted under the accident conditions, automatic program control safety is discharged the technology of whole nuclear fuel pellets in the reactor, and nuclear accident has been played the effect of taking away the firewood under the cauldron, and adds the reserve nuclear fuel that has only in the reactor seldom.Nuclear fuel pellet in the reactor can all be discharged in the accident nuclear fuel cooling pond 2 very soon, does not have any nuclear fuel that produces heat again in the reactor fully, and reactor is just safer.Serious nuclear accident such as heap dry combustion method and fusible core fully more can not react.Reactor just has been perfectly safe.Moreover because the heap type structure of the utility model is the spherical-bed reactor core, reactor-loop is full of cooling medium.No matter be light water reactor, presurized water reactor, or the cold fast neutron reactor of sodium.Nuclear fuel pellet in the reactor core all is to be submerged in the cooling medium forever.Even rupture and leakage occurs just in case a loop takes place, also have the protection of pile envelope 15, guarantee that the active cooling medium of a loop band can not leak.Moreover a large amount of secondary circuit recirculated water 7 is arranged in the pile envelope 15, can guarantee in the nuclear reactor core 11 nuclear fuel 003 ball dry combustion method and fusible core never fully.Therefore no matter any situation takes place, the exhausted possibility of not having generation dry combustion method and fusible core in for a long time.For absolute plenty of time is won in the thorough safe handling of nuclear accident.
Reactor main support shown in Figure 2 001, pile envelope 15, heat-insulation layer 35, one, secondary circuit heat exchanger 10, reactor inner casing 16, a loop intermediate heat exchanger 004 (not adorning during light water reactor), cylindrical shape control panel 12, reactor core 11; And all critical pieces such as 13 main circulation pump A5 of the control rod among Fig. 1 all are to be fixed on the reactor main support 001; It is whole to make it to become a firm complete reactor; Formation is main supporter with reactor main support 001; By about two hemisphere form symmetrical reactor right cylinder.When reactor is overhauled, as long as be discharged in the cooling pond the whole nuclear fuel pellets in the reactor or nuclear fuel dress is received in the case.Each layer housing that is fixed on the reactor main support 001 opened, and each critical piece in the reactor is just as opening the onion that is cut into two halves, in face of being exposed in layer, easily overhauls.
In sum, the utility model ultra safe uranium of the 5th generation, plutonium double fuel spherical-bed reactor can be realized complete leak free interpolation nuclear fuel pellet and fully leak freely the spentnuclear fuel ball is discharged to the nuclear fuel dress receives in the case.And then realizing nuclear reactor under the situation of not shutdown, nuclear fuel pellet and the safety circulation of discharging the spentnuclear fuel ball are added in complete leak free completion.Because structure makes the ultra security reaction heap of the 5th generation of the utility model more safer than existing reactor, more efficient.It is a kind of advanced person's the brand-new type reactor type of highly reliable, ultra safe, dynamical multi-usage.Its structure and system can constitute multiple embodiments: 1. can be used as and implement to build light water reactor.2. can be used as and implement to build presurized water reactor, 3. also can be used as and build the cold fast neutron reactor of sodium.When implementing to build the cold fast neutron reactor of sodium, only needing increases the cold interval absciss layer of one deck sodium between the loop and secondary circuit in reactor inner casing 16.To guarantee when take place to leak in a loop and secondary circuit shutdown early when breaking down.Avoid causing serious nuclear leakage accident.
In the 5th generation,, ultra security reaction heap was the update technology of existing nuclear power plant reactor, can guarantee that nuclear reactor thoroughly eradicates nuclear accident, thoroughly eliminated the terrified cloudy shape of nuclear accident.From then on open the safe gate of peaceful use of nuclear energy completely.For brighter finer development prospect is opened up in the peaceful utilization of atomic energy.
In the 5th generation of the utility model,, ultra security reaction heap can be used for building more advanced, safer land nuclear power station; Build ultra safe nuclear power ship at sea, build more advanced nuclear-powered aircraft, nuclear power warship, nuclear merchant ship etc.
Claims (9)
1. uranium, plutonium double fuel spherical-bed reactor are the right cylinders be made up of reactor inner casing and pile envelope, and the center that is positioned at the reactor inner casing is provided with the nuclear reactor core of spherical-bed; It is characterized in that: a uranium fuel ball service tank and a plutonium fuel sphere service tank are housed outside the top of pile envelope; Uranium fuel ball service tank and plutonium fuel sphere service tank are isolated each other airtight casing; Subsequent use uranium fuel ball is housed in the uranium fuel ball service tank, subsequent use plutonium fuel sphere is housed in the plutonium fuel sphere service tank; Uranium fuel ball service tank bottom is equipped with uranium fuel ball feed gate, and plutonium fuel sphere service tank bottom is equipped with plutonium fuel sphere feed gate; The feed pipe of the feed pipe of uranium fuel ball feed gate control and the control of plutonium fuel sphere feed gate is combined into a sealed tube, joins through feed pressure transitional storehouse, spherical nucleus fuel-feed buffering pipe that is communicated with successively and the spherical nucleus fuel distributor of installing above the nuclear reactor core; The bottom of nuclear reactor core is provided with reactor nuclear fuel pellet discharge gate, and discharge control gate below links to each other with the nuclear fuel pellet discharge line; The discharge pressure transition storehouse of discharge line through its below is connected to spentnuclear fuel dress and receives case; At the central of nuclear reactor core is center one circuit cools mozzle, has filled up nuclear fuel pellet around the one circuit cools mozzle of center; Around the one circuit cools mozzle of center, outwards and between the nuclear reactor core inwall be evenly distributed with many reactor control rod conduits; Near the reactor core outer wall is the cylindrical shape control panel, and the cylindrical shape control panel is outward a circuit cools layer, and a circuit cools layer is outward the cold intermediate heat exchanger of a loop sodium, and the cold intermediate heat exchanger of a loop sodium is near the reactor inner casing; Be provided with one between reactor inner casing and the pile envelope, secondary circuit heat exchanger and be full of secondary circuit recirculated water; One, is provided with inner thermal insulating layer between secondary circuit heat exchanger and the pile envelope; In the right cylinder bottom of forming by reactor inner casing and pile envelope, a loop major cycle valve B, a loop main circulation pump A, and a loop major cycle valve A forms first cover, one loop major circulatory system; One loop major cycle valve C, a loop main circulation pump B, and a loop major cycle valve D forms second cover, one loop major circulatory system; Secondary circuit recirculated water is full of the whole spaces between pile envelope and the reactor inner casing.
2. reactor according to claim 1 is characterized in that: in the pile envelope inboard inner thermal insulating layer being arranged, is the insulation screen layer outside the pile envelope.
3. reactor according to claim 1 is characterized in that: reflection horizon around nuclear reactor core is outside equipped with; The cylindrical shape control panel is arranged on nuclear reactor core and all around between the reflection horizon.
4. reactor according to claim 1 is characterized in that: the control rod sleeve pipe is to process with stainless steel, and porous is arranged around the tube wall.
5. according to claim 1 or 4 described reactors, it is characterized in that: be with reactor control rod in the control rod sleeve pipe.
6. reactor according to claim 1 is characterized in that: reactor inner casing top lower inner is the secondary circuit steam dryer, be positioned at the nuclear reactor core hot-fluid directly over; On steam dryer, be provided with steam (vapor) outlet, steam (vapor) outlet is provided with the small-sized Turbo-generator Set of providing for oneself, and small-sized providing for oneself between Turbo-generator Set and the steam (vapor) outlet is equipped with steam control valve.
7. reactor according to claim 1; It is characterized in that: between sealed tube that is connected with uranium fuel ball feed gate and plutonium fuel sphere feed gate and the feed pressure transitional storehouse charging separation valve door A is arranged, between feed pressure transitional storehouse lower end and the ball-type nuclear fuel blanking buffering pipe charging separation valve door B is arranged.
8. reactor according to claim 7 is characterized in that: be provided with the reactor core regulating and controlling mechanism in the reactor inner casing, in the reactor inner casing, also be provided with the spherical nucleus fuel distributor.
9. reactor according to claim 1 is characterized in that: the drainage line gate is arranged at the bottom of nuclear reactor core, and the drainage line gate is the palisade baffle plate, and its below connects the nuclear fuel pellet discharge line; The below of nuclear fuel pellet discharge line links to each other with discharge valve A; The lower end of discharge valve A and upper end, discharge pressure transition storehouse join; The lower end and the discharge valve B in discharge pressure transition cabin join; Discharge valve B lower end is received spentnuclear fuel ball on the case by closed conduit and spentnuclear fuel dress and is discharged the guiding valve and join.
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| CN2012201950826U CN202563900U (en) | 2012-05-04 | 2012-05-04 | Uranium-plutonium fuel sphere bed type reactor |
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| CN2012201950826U CN202563900U (en) | 2012-05-04 | 2012-05-04 | Uranium-plutonium fuel sphere bed type reactor |
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| US9786391B2 (en) | 2015-02-19 | 2017-10-10 | X-Energy, Llc | Nuclear fuel pebble and method of manufacturing the same |
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| US10522255B2 (en) | 2015-02-19 | 2019-12-31 | X-Energy, Llc | Nuclear fuel pebble and method of manufacturing the same |
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2012
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| US11081241B2 (en) | 2015-02-19 | 2021-08-03 | X-Energy, Llc | Nuclear fuel pebble and method of manufacturing the same |
| CN108331628A (en) * | 2018-04-24 | 2018-07-27 | 贵州电网有限责任公司 | A kind of power supply system of Anti-icing of Transmission Lines mitigation on-Line Monitor Device |
| CN108331628B (en) * | 2018-04-24 | 2024-02-27 | 贵州电网有限责任公司 | Power supply system of anti-icing disaster-reduction on-line monitoring device for power transmission line |
| CZ308944B6 (en) * | 2020-09-08 | 2021-09-22 | Západočeská Univerzita V Plzni | Refrigerant displacement and containment equipment |
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