CN110265157A - A kind of full natural circulation reactor and its application method of more power scales - Google Patents
A kind of full natural circulation reactor and its application method of more power scales Download PDFInfo
- Publication number
- CN110265157A CN110265157A CN201910548383.9A CN201910548383A CN110265157A CN 110265157 A CN110265157 A CN 110265157A CN 201910548383 A CN201910548383 A CN 201910548383A CN 110265157 A CN110265157 A CN 110265157A
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- China
- Prior art keywords
- reactor
- natural circulation
- isolating valve
- core
- heat
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- 238000000034 method Methods 0.000 title claims description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000012546 transfer Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000002826 coolant Substances 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims abstract description 3
- 238000013461 design Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/18—Emergency cooling arrangements; Removing shut-down heat
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D5/00—Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy
- G21D5/02—Reactor and engine structurally combined, e.g. portable
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention proposes a kind of full natural circulation reactor of more power scales, the major loop heat exchanger of reactor is big coils, is set to above the reactor core of reactor, and arrange around core barrel；In the circumferential equidistant installation workload demand isolating valve of the different height of the core barrel；The ascent stage that coolant is surrounded after reactor core heating by the core barrel, major loop heat exchanger side is flowed into via the workload demand isolating valve of unlatching, heating tube fluid is restrained by horizontal heat-transfer pipe of plunderring, to generate heat exchange, is flowed out after water supply is heated by steam/heat waterpipe.It realizes that heat removes by passive Natural Circulation, cancels main pump, utmostly reduce the initial event for losing flowing class；Cancel the relevant support system of main pump simultaneously, promotes economy；Integral reactor eliminates a possibility that large break occurs；With more power grade thermic load fan-out capabilities.
Description
Technical field
The present invention relates to integral reactor field, the full natural circulation reactor field of especially more power scales.
Background technique
At this stage, to meet the needs of different application scene, Small reactor research and development are paid close attention to by both domestic and external,
And Small reactor can be built individually or as the module of a larger association, capacity can increase with the growth of demand.
For small-sized heap, integrated design shows its unique advantage: main coolant system capital equipment is respectively positioned on pressure
In force container, including steam generator, control rod drive mechanism, voltage-stablizer etc., integrated design eliminate main pipeline, eliminate
A possibility that large break accident occurs.
After the accident, passive technology is received more and more attention Fukushima with its safety, reliability, economy,
The technology depends on nature physics law not against external input (power, power or signal, manual operation), their effect
Energy in (such as gravity, free convection, heat transfer etc.), inherent characteristic (such as material properties) or system is (as chemistry is anti-
It answers, decay heat etc.).The application of passive system makes system be in fail-safe state, improves the safety of system, make heap
The probability of core fusing reduces by 1 to 2 order of magnitude.
In addition, the demand based on district heating, power generation even cogeneration, reactor is designed as can be flexible and convenient
Realize that different steam quality outputs or cogeneration seem particularly necessary.
The present invention utilizes full Natural Circulation, integral reactor design concept, and design Natural Circulation integrated small is anti-
Heap is answered, using the design of different Cooling and Heat Source potential differences, realizes the workload demand of different capacity grade.
Summary of the invention
The object of the present invention is to provide a kind of full Natural Circulation integration heap-type that more power grade workload demands can be achieved,
Under conditions of guaranteeing safe enough, reactor purposes is expanded.
A kind of full natural circulation reactor of more power scales, it is characterised in that: reactor uses integrated design scheme,
Major loop heat exchanger is big coils, is set to above the reactor core of reactor, and is arranged around core barrel；In the core barrel
Different height circumferential equidistant installation workload demand isolating valve, to realize the design requirement of different Cooling and Heat Source potential differences；It is cooling
The ascent stage that agent is surrounded after reactor core heating by the core barrel, via the workload demand isolating valve of unlatching
Major loop heat exchanger side is flowed into, is passed through after water supply is heated by horizontal heat-transfer pipe tube bank heating tube fluid of plunderring with generating heat exchange
It is flowed out by steam/heat waterpipe.
Preferably, isolating valve is respectively provided on the feedwater piping and the steam/heat waterpipe.
A kind of application method of the full natural circulation reactor of more power scales: according to thermal load demands, by from as low as
Height switchs the workload demand isolating valve to adjust output power.
The present invention proposes a kind of full Natural Circulation integral reactor of more power scales, real by passive Natural Circulation
Existing heat removes, and cancels main pump, utmostly reduces the initial event for losing flowing class；Cancel the relevant support system of main pump simultaneously
System promotes economy；Integral reactor eliminates a possibility that large break occurs；It is hung using deep bid heat exchange of heat pipe and in reactor core
Basket different height installs the design form of isolating valve equidistantly circumferentially to realize the design requirement of different Cooling and Heat Source potential differences, has
More power grade thermic load fan-out capabilities.
Detailed description of the invention
Fig. 1 is a kind of more full Natural Circulation integral reactor schematic diagrames of power scale.
1-reactor pressure vessel；2-steam/heat water isolation valves；3-steam/heat waterpipes；4-major loop heat exchangers
Heat-transfer pipe；5-core barrels；6-feedwater isolation valves；7-feedwater pipings；8-reactor cores；9-the 4 stage load demand every
From valve；10-3rd level workload demand isolating valves；11-the 2 stage load demand segregation valve；12-the 1 stage load demand segregation valve.
Specific embodiment
Embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Main body of the invention includes integrated reacting core pressure vessel, deep bid heat exchange of heat pipe and in core barrel different height
The isolating valve equidistantly installed of circumferential direction.The present invention can make the reactor of design have more power grade thermic load fan-out capabilities.
As shown in Figure 1, by taking 4 stage load demands as an example.When thermal load demands are low, at this point, being needed defeated according to user demand
Low-quality steam or hot water out then close high-grade (the 2nd, 3,4 grade) workload demand isolating valve, and open inferior grade (the 1st grade)
Workload demand isolating valve, then reactor is exported with the energy of inferior grade power to user；
When user needs high grade heat to export energy, then high-grade (the 4th grade) workload demand isolating valve is opened, and close
Inferior grade (the 1st, 2,3 grade) workload demand isolating valve, then reactor is exported with the energy of high-grade power to user；
When the energy requirement of user between it is high-grade between inferior grade when, then regarding user demand and opening medium stage load needs
Isolating valve is sought, such as the 2nd or 3rd level workload demand isolating valve, meanwhile, close the isolating valve of other load levels.
The present invention is not strictly limited to the example, and scheme proposed by the present invention is suitable for any using more power rulers
Spend the heap-type of full Natural Circulation integral reactor design.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (3)
1. a kind of full natural circulation reactor of more power scales, it is characterised in that: reactor uses integrated design scheme, main
Loop heat exchanger is big coils, is set to above the reactor core of reactor, and is arranged around core barrel；In the core barrel
The circumferential equidistant installation workload demand isolating valve of different height；Coolant is hung after reactor core heating by the reactor core
The ascent stage that basket surrounds asks the load that isolating valve is needed to flow into major loop heat exchanger side, plunders heat-transfer pipe by horizontal via unlatching
Tube bank heating tube fluid is flowed out after water supply is heated by steam/heat waterpipe with generating heat exchange.
2. a kind of full natural circulation reactor of more power scales as described in claim 1, it is characterised in that: in the reactor core
The circumferential equidistant installation workload demand isolating valve of hanging basket different height.
3. a kind of application method of the full natural circulation reactor of more power scales, it is characterised in that: according to thermal load demands, lead to
Isolating valve is needed after switching the load from low to high to adjust output power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548383.9A CN110265157A (en) | 2019-06-24 | 2019-06-24 | A kind of full natural circulation reactor and its application method of more power scales |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548383.9A CN110265157A (en) | 2019-06-24 | 2019-06-24 | A kind of full natural circulation reactor and its application method of more power scales |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110265157A true CN110265157A (en) | 2019-09-20 |
Family
ID=67920808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910548383.9A Pending CN110265157A (en) | 2019-06-24 | 2019-06-24 | A kind of full natural circulation reactor and its application method of more power scales |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110265157A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02128192A (en) * | 1988-11-08 | 1990-05-16 | Power Reactor & Nuclear Fuel Dev Corp | Decentralized nuclear reactor |
| JP2002267784A (en) * | 2001-03-07 | 2002-09-18 | Toshiba Corp | Water injection flow rate adjusting facility for nuclear reactor water injection system |
| US20090129530A1 (en) * | 2007-11-15 | 2009-05-21 | The State Of Or Acting By And Through The State System Of Higher Education On Behalf Of Or State U | Passive emergency feedwater system |
| US20120307956A1 (en) * | 2010-02-05 | 2012-12-06 | Singh Krishna P | Nuclear reactor system having natural circulation of primary coolant |
| CN108648837A (en) * | 2018-05-15 | 2018-10-12 | 中国核动力研究设计院 | A kind of modular Small reactor of full Natural Circulation |
| CN210627924U (en) * | 2019-06-24 | 2020-05-26 | 上海核工程研究设计院有限公司 | Full natural circulation reactor with multiple power scales |
-
2019
- 2019-06-24 CN CN201910548383.9A patent/CN110265157A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02128192A (en) * | 1988-11-08 | 1990-05-16 | Power Reactor & Nuclear Fuel Dev Corp | Decentralized nuclear reactor |
| JP2002267784A (en) * | 2001-03-07 | 2002-09-18 | Toshiba Corp | Water injection flow rate adjusting facility for nuclear reactor water injection system |
| US20090129530A1 (en) * | 2007-11-15 | 2009-05-21 | The State Of Or Acting By And Through The State System Of Higher Education On Behalf Of Or State U | Passive emergency feedwater system |
| US20120307956A1 (en) * | 2010-02-05 | 2012-12-06 | Singh Krishna P | Nuclear reactor system having natural circulation of primary coolant |
| CN108648837A (en) * | 2018-05-15 | 2018-10-12 | 中国核动力研究设计院 | A kind of modular Small reactor of full Natural Circulation |
| CN210627924U (en) * | 2019-06-24 | 2020-05-26 | 上海核工程研究设计院有限公司 | Full natural circulation reactor with multiple power scales |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |
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