CN106229015A - A kind of high-temperature molten salt manometer tube and pipe tube type graphite high-temperature molten salt reactor - Google Patents
A kind of high-temperature molten salt manometer tube and pipe tube type graphite high-temperature molten salt reactor Download PDFInfo
- Publication number
- CN106229015A CN106229015A CN201610712584.4A CN201610712584A CN106229015A CN 106229015 A CN106229015 A CN 106229015A CN 201610712584 A CN201610712584 A CN 201610712584A CN 106229015 A CN106229015 A CN 106229015A
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- China
- Prior art keywords
- molten salt
- temperature molten
- manometer tube
- reactor
- tube
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- 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.)
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/06—Casings; Jackets
- G21C3/07—Casings; Jackets characterised by their material, e.g. alloys
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/42—Selection of substances for use as reactor fuel
- G21C3/44—Fluid or fluent reactor fuel
- G21C3/54—Fused salt, oxide or hydroxide compositions
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C5/00—Moderator or core structure; Selection of materials for use as moderator
- G21C5/12—Moderator or core structure; Selection of materials for use as moderator characterised by composition, e.g. the moderator containing additional substances which ensure improved heat resistance of the moderator
- G21C5/126—Carbonic moderators
-
- 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 discloses a kind of high-temperature molten salt manometer tube and pipe tube type graphite subregion reloads MSR, high-temperature molten salt is only at high-temperature molten salt pressure Bottomhole pressure, manometer tube has stronger heat-insulating capability, graphite moderator temperature outside manometer tube is significantly reduced, control rod interlocks with manometer tube, the low temperature graphite moderator district being arranged between manometer tube；The present invention not only significantly reduces control rod system placement technique difficulty, it is also possible to significantly improves control rod and arranges quantity, intensified response control ability；Arranging quantity and form by manometer tube, MSR is divided into multiple region, each region arranges independent circuit system, and each circuit system is separate；Utilizing subregion to reload and replace online chemical treatment, significantly simplify the design of MSR system, build and run difficulty, circuit system is greatly simplified；MSR reactor core, control rod and circuit system arrangement that the present invention proposes are simpler, can significantly improve MSR engineering realizability.
Description
Technical field
The invention belongs to nuclear reactor technology field, be specifically related to a kind of high-temperature molten salt manometer tube, fusedsalt reactor reactor core
Arrange and the arrangement of circuit system.
Background technology
MSR is one of six kinds of candidate's heap-type filtering out of iv generation international nuclear energy forum, is also unique liquid fuel
Reactor, has unique advantage at aspects such as inherent safety, economy, nuclear fuel sustainable development and prevention of nuclear proliferations.Molten
In reactant salt heap, the fused salt containing fissioner, with the temperature higher than 500 DEG C, flows through reactor core and reaches critical state, and liquid is fired
There is fission reaction release heat in material, by own absorption, takes away, it is not necessary to other coolant.MSR simple in construction, passes through
Online chemical processing system removes fission product the periodically fueling that reactor core produces, and can realize MSR continuous service.This
Outward, arrange some bundle control rods at reactor core high temperature moderator district or reflector region, it is achieved the normal start and stop of reactor, power adjustments and
The functions such as scram.
The online chemical processing system of liquid fuel of MSR is to ensure that one of properly functioning core system of MSR, but
Molten salt fuel temperature, more than 500 DEG C and containing a large amount of fission products and radionuclide, causes the liquid of high-temperature molten salt reactor to be fired
Expect that the design of online chemical processing system is extremely complex, need to consider the factors such as high temperature, high radioactivity, fuel throughput and speed,
Manufacture and design extremely difficult, seriously hinder the through engineering approaches application of high-temperature molten salt reactor.No matter at the reactor core graphite of MSR
District, or graphite reflector region, temperature is the highest, and radioactivity is the most extremely strong, and it is extremely difficult that this causes control rod to be arranged, its fortune
Row reliability is also difficult to ensure that.The pressure to control rod system is controlled, after reducing reactor core as far as possible in order to reduce reactor core reactivity
Standby reactive, fill a small amount of fuel mode guarantee reactor core criticality safety by uninterrupted.During MSR Power operation, frequently
Numerous fueling, this runs for system and fuel management brings problems.Therefore, it is highly desirable to fire for high-temperature liquid state
Material MSR design and operation characteristic, propose simpler reactor core display mode, safer reactive control mode.
Summary of the invention
The present invention is directed to high-temperature liquid state fuel MSR need to carry out online chemical treatment, frequent fueling, control rod
The problems such as system placement technique difficulty is big, propose simpler high-temperature liquid state fuel MSR reactor core and circuit system layout side
Formula, safer reactive control mode, improve MSR engineering realizability further.Concrete technical scheme is as follows.
The application provide firstly a kind of high-temperature molten salt manometer tube, and described manometer tube is the sleeve structure of at least two-layer, institute
Stating and be filled with heat-barrier material between the adjacent layer of manometer tube, be molten salt fuel in manometer tube, molten salt fuel only flows in manometer tube
Dynamic.
Preferably, described heat-barrier material is zirconia ceramics.
Preferably, the material of described tubular structure is the composite silicon carbide ceramic material that neutron absorption cross-section is less.
Present invention also provides pipe tube type graphite high-temperature molten salt reactor based on above-mentioned high-temperature molten salt manometer tube, it is main
MSR reactor core to be included and circuit system, described MSR reactor core is by high-temperature molten salt manometer tube, reactor vessel, graphite
Agent and control rod are constituted；Described high-temperature molten salt manometer tube is arranged in reactor vessel, fills graphite in reactor vessel
Agent, graphite moderator and reactor vessel are in close contact to support manometer tube holding level；Control rod is arranged between manometer tube,
And interlock with manometer tube；Described MSR reactor core is connected by mozzle with circuit system, and mozzle is located at reactor vessel two
End two ends with high-temperature molten salt manometer tube respectively are connected and communicate.
Preferably, described high-temperature molten salt manometer tube is horizontally disposed in reactor vessel, control rod be arranged in manometer tube it
Between, and vertical with manometer tube.
Further, the quantity of the high-temperature molten salt manometer tube in described reactor vessel and control rod is according to MSR reactor core
Watt level, power density and refulling cycle adjustable.
Further, by adjusting spacing and the size of high-temperature molten salt manometer tube, fused salt combustion in MSR reactor core is i.e. changed
Material and the ratio of the volume of graphite moderator, adjust reactor core neutron energy spectrum type.
Further, the circuit system of described MSR is made up of loop heat exchanger, pump for liquid salts and low-temperature molten salt header；
Described loop heat exchanger, pump for liquid salts and low-temperature molten salt header are sequentially connected with；
The mozzle being located at described reactor vessel two ends is respectively hot junction mozzle and cold end mozzle；Described hot junction mozzle
Connect successively with the cold end mozzle of the loop heat exchanger of circuit system, pump for liquid salts, low-temperature molten salt header and reactor vessel
Connect.
Preferably, described high-temperature molten salt reactor reactor core can be divided at least two region, the high-temperature molten salt in each region
Manometer tube has identical fused salt flow velocity, flow, pressure and inlet temperature.
Further, each high-temperature molten salt reactor core region includes a circuit system, and the most each region arranges independent
Pump for liquid salts, heat exchanger, header etc., constitute independent circuit system.So can be according to the combustion of each district manometer tube molten salt fuel
The consumption degree of depth and fused salt characteristic, be replaced and corresponding circuit overhaul of the equipments the molten salt fuel in each district manometer tube successively, it is achieved
Reactor continuous service.
Beneficial effect: the present invention proposes a kind of high-temperature molten salt manometer tube and pipe tube type graphite subregion reloads fused salt
Heap, high-temperature molten salt is only at high-temperature molten salt pressure Bottomhole pressure, and manometer tube has stronger heat-insulating capability so that the stone outside manometer tube
Ink moderator temperature significantly reduces, and control rod interlocks with manometer tube, the low temperature graphite moderator district being arranged between manometer tube, this
Invention
1) control rod system placement technique difficulty is not only significantly reduced, it is also possible to significantly improve control rod and arrange quantity, strengthen
Reactive control ability；
2) press manometer tube and arrange quantity and form, MSR is divided into multiple region, independent loop is set for each region
System, each circuit system is separate；
3) according to the burn-up level of molten salt fuel in each areal pressure pipe and fused salt characteristic, carry out successively reloading and circuit units inspection
Repair；
4) utilize subregion to reload and replace online chemical treatment, significantly simplify the design of MSR system, build and run difficulty, return
Road system is greatly simplified；
5) present invention proposes MSR reactor core, control rod and circuit system arrangement are simpler, can significantly improve molten
Salt heap engineering realizability.
Accompanying drawing explanation
Fig. 1 high-temperature molten salt manometer tube structural representation；
Fig. 2 reactor core and circuit system structural representation；
Cross-sectional view arranged by Fig. 3 reactor pressure tube and control rod；
Fig. 4 reactor core manometer tube subregion schematic diagram；
In figure: 1-manometer tube trocar sheath, 2-manometer tube thermal insulation layer, 3-manometer tube inner sleeve, 4-manometer tube high-temperature molten salt passage, 5-
High-temperature molten salt manometer tube, 6-control rod, 7-reactor vessel, 8-graphite moderator, 9-mozzle, 10-low-temperature molten salt header,
11-pump for liquid salts, 12-loop heat exchanger.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme carried out clearly, be fully described by, it is clear that institute
The embodiment described is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, this
All other embodiments that the those of ordinary skill in field is obtained on the premise of not making creative work, broadly fall into this
The scope of invention protection.
The high-temperature molten salt manometer tube that the application provides, is the sleeve structure of at least two-layer, fills out between the adjacent layer of manometer tube
It is filled with heat-barrier material, is molten salt fuel in manometer tube.As it is shown in figure 1, be the high-temperature molten salt manometer tube of double-layer sleeve structure, by pressing
Solenoid trocar sheath 1 and manometer tube inner sleeve 2 form, and are filled with heat-barrier material between sleeve pipe, constitute manometer tube thermal insulation layer 3, pressure
Being manometer tube high-temperature molten salt passage 4 in Guan, molten salt fuel only flows in manometer tube passage 4, and inside and outside sleeve pipe uses neutron-absorbing
The composite that cross section is less, filling with insulation material between inside and outside sleeve pipe, to ensure at the outside graphite moderator temperature of manometer tube
In reduced levels, reduce control rod driving system design and the technical difficulty arranged.
It is being illustrated in figure 2 pipe tube type graphite high-temperature molten salt reactor reactor core and the structural representation of circuit system, institute
State MSR reactor core to be made up of high-temperature molten salt manometer tube 5, reactor vessel 7, graphite moderator 8 and control rod 6；Described high temperature melting
Salt manometer tube is horizontally disposed in reactor vessel 7, fills graphite moderator 8, graphite moderator 8 and reaction in reactor vessel
Heap container 7 is in close contact to support manometer tube 5 holding level；The low temperature graphite district that control rod 6 is arranged between manometer tube, and with
Manometer tube 5 is vertical；Described MSR reactor core is connected by mozzle 9 with circuit system, and mozzle 9 is located at reactor vessel 7 liang
End two ends with high-temperature molten salt manometer tube 5 respectively are connected and communicate；The circuit system of described MSR is by loop heat exchanger 12, fused salt
Pump 11 and low-temperature molten salt header 10 are constituted.Fig. 2 is cylindrical reactor container and uses horizontal, arranges multiple rules in container
The high-temperature molten salt manometer tube 5 as shown in Figure 1 of arrangement, generally presses the arrangement of square grid form, makes manometer tube 5 and control rod 6
Between occur without interference；Control rod 6 is mutually perpendicular to manometer tube 5, and control rod 6 can rely on gravity quick insertion reactor core activity
District, along fused salt flow direction, can be sequentially arranged more control rod 6；High-temperature molten salt in each manometer tube 5, holds through being located at reactor
Device hot junction mozzle, enters loop heat exchanger 12, conducts heat to other loop, after flowing out loop heat exchanger 12, formation
Low-temperature molten salt enters fused salt header 10 through pump for liquid salts 11, (such as heating, degasification etc.) after required process, is reallocated to each
The cold end mozzle of manometer tube, back flows back into reactor core active region manometer tube.
Reactor in-core high-temperature molten salt manometer tube 5 and the arrangement form of control rod 6 as shown in Figure 3, can be according to reactor core
Thermal power rating, body power density, refulling cycle and neutron energy spectrum type, adjust the quantity of active region manometer tube, spacing, control
Rod quantity, makes Core Design scheme have the strongest motility.
Fig. 4 show reactor core manometer tube subregion schematic diagram, in order to realize fusedsalt reactor on-line refuelling, cancellation
Online chemical processing system also alleviates system design and operation pressure, and reactor core is divided into A, B, C, D isolated area, each region
Inside comprise multiple manometer tube, and arrange match with this region flow rate of molten salt pump for liquid salts, heat exchanger, the equipment such as header, shape
Become separate high-temperature molten salt circuit system.In the same area, the flow rate of molten salt of each manometer tube, pressure, entrance fused salt temperature
The parameters such as degree, burn-up level are identical.In actual application, according to each district fused salt burn-up level and characteristic, carry out molten salt fuel successively
Change and overhaul of the equipments.
Claims (10)
1. a high-temperature molten salt manometer tube, it is characterised in that described manometer tube is the sleeve structure of at least two-layer, the phase of manometer tube
Heat-barrier material it is filled with between adjacent bed.
A kind of high-temperature molten salt manometer tube the most according to claim 1, it is characterised in that the material of described sleeve structure is multiple
Close silicon carbide ceramics.
A kind of high-temperature molten salt manometer tube the most according to claim 1, it is characterised in that described heat-barrier material is zirconium oxide pottery
Porcelain.
4. pipe tube type graphite high-temperature molten salt reactor based on high-temperature molten salt manometer tube described in the claims, its feature exists
In, including MSR reactor core and circuit system, described MSR reactor core includes high-temperature molten salt manometer tube, reactor vessel, graphite
Moderator and control rod；Described high-temperature molten salt manometer tube is arranged in reactor vessel, fills graphite in reactor vessel
Agent, described graphite moderator is in close contact with reactor vessel；Control rod is arranged between manometer tube, and interlocks with manometer tube；
Described MSR reactor core is connected by mozzle with circuit system, mozzle be located at reactor vessel two ends respectively with high-temperature molten salt
The two ends connection of manometer tube communicates.
Pipe tube type graphite high-temperature molten salt reactor the most according to claim 4, it is characterised in that described high-temperature molten salt pressure
Solenoid is horizontally disposed in reactor vessel, and control rod is arranged between manometer tube, and vertical with manometer tube.
Pipe tube type graphite high-temperature molten salt reactor the most according to claim 4, it is characterised in that described reactor vessel
In high-temperature molten salt manometer tube and the quantity of control rod can according to watt level, power density and the refulling cycle of MSR reactor core
Adjust.
Pipe tube type graphite high-temperature molten salt reactor the most according to claim 4, it is characterised in that by adjusting high temperature melting
The spacing of salt manometer tube and size, i.e. change molten salt fuel and the ratio of the volume of graphite moderator in MSR reactor core, adjust heap
Core neutron energy spectrum type.
8. the pipe tube type graphite high-temperature molten salt reactor according to claim 4, described in 5,6 or 7, it is characterised in that described time
Road system is made up of loop heat exchanger, pump for liquid salts and low-temperature molten salt header；Described loop heat exchanger, pump for liquid salts and low temperature
Fused salt header is sequentially connected with.
Pipe tube type graphite high-temperature molten salt reactor the most according to claim 8, it is characterised in that described high-temperature molten salt reactor
Reactor core is divided at least two region, the high-temperature molten salt manometer tube in each region have identical fused salt flow velocity, flow, pressure with
And inlet temperature.
Pipe tube type graphite high-temperature molten salt reactor the most according to claim 9, it is characterised in that each high-temperature molten salt
Heap core region includes a circuit system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712584.4A CN106229015B (en) | 2016-08-24 | 2016-08-24 | A kind of high-temperature molten salt pressure pipe and pipe tube type graphite high-temperature molten salt reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712584.4A CN106229015B (en) | 2016-08-24 | 2016-08-24 | A kind of high-temperature molten salt pressure pipe and pipe tube type graphite high-temperature molten salt reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106229015A true CN106229015A (en) | 2016-12-14 |
| CN106229015B CN106229015B (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610712584.4A Active CN106229015B (en) | 2016-08-24 | 2016-08-24 | A kind of high-temperature molten salt pressure pipe and pipe tube type graphite high-temperature molten salt reactor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231220A (en) * | 2018-01-12 | 2018-06-29 | 中国核动力研究设计院 | A kind of pipe tube type pressurized water reactor system |
| CN108511091A (en) * | 2018-05-10 | 2018-09-07 | 中国核动力研究设计院 | A kind of pipe tube type pressurized water reactor system |
| CN110689984A (en) * | 2019-10-23 | 2020-01-14 | 中国科学院上海应用物理研究所 | Molten salt reactor core refueling management method |
| CN111370146A (en) * | 2020-03-17 | 2020-07-03 | 中国核动力研究设计院 | Reactor structure suitable for spherical fuel and high-temperature coolant |
| CN111739665A (en) * | 2020-07-07 | 2020-10-02 | 中国科学院上海应用物理研究所 | Graphite nodule moderated molten salt reactor |
| CN112259263A (en) * | 2020-10-26 | 2021-01-22 | 中国科学院上海应用物理研究所 | Three-channel molten salt reactor core structure and three-channel molten salt reactor system |
| WO2022206072A1 (en) * | 2021-03-29 | 2022-10-06 | 中国核电工程有限公司 | Gas-cooled micro-reactor core and gas-cooled micro-reactor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231220A (en) * | 2018-01-12 | 2018-06-29 | 中国核动力研究设计院 | A kind of pipe tube type pressurized water reactor system |
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| CN111370146A (en) * | 2020-03-17 | 2020-07-03 | 中国核动力研究设计院 | Reactor structure suitable for spherical fuel and high-temperature coolant |
| CN111739665A (en) * | 2020-07-07 | 2020-10-02 | 中国科学院上海应用物理研究所 | Graphite nodule moderated molten salt reactor |
| CN112259263A (en) * | 2020-10-26 | 2021-01-22 | 中国科学院上海应用物理研究所 | Three-channel molten salt reactor core structure and three-channel molten salt reactor system |
| CN112259263B (en) * | 2020-10-26 | 2022-08-02 | 中国科学院上海应用物理研究所 | Three-channel molten salt reactor core structure and three-channel molten salt reactor system |
| WO2022206072A1 (en) * | 2021-03-29 | 2022-10-06 | 中国核电工程有限公司 | Gas-cooled micro-reactor core and gas-cooled micro-reactor |
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| Publication number | Publication date |
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| CN106229015B (en) | 2018-09-11 |
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