CN105489258A - Non-kinetic energy containment vessel cooling system of floating nuclear power plant - Google Patents
Non-kinetic energy containment vessel cooling system of floating nuclear power plant Download PDFInfo
- Publication number
- CN105489258A CN105489258A CN201610003800.8A CN201610003800A CN105489258A CN 105489258 A CN105489258 A CN 105489258A CN 201610003800 A CN201610003800 A CN 201610003800A CN 105489258 A CN105489258 A CN 105489258A
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- CN
- China
- Prior art keywords
- seawater
- communicated
- cooling system
- nuclear power
- power plant
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 28
- 239000013535 sea water Substances 0.000 claims abstract description 125
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 87
- 238000002955 isolation Methods 0.000 claims description 52
- 230000002209 hydrophobic effect Effects 0.000 claims description 25
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000005253 cladding Methods 0.000 abstract 3
- 238000009423 ventilation Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- 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
-
- 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 provides a non-kinetic energy containment vessel cooling system of a floating nuclear power plant. The non-kinetic energy containment cooling system comprises a containment vessel, a cladding, seawater inlet pipes, seawater outlet pipes, a seawater-atmosphere-shared pipe, an atmosphere ventilation pipe and a drainage pipe, wherein the cladding is arranged outside the containment vessel in a sleeving mode, and a flow channel is formed between the cladding and the containment vessel; the seawater inlet pipes are communicated with the lower portion of the flow channel; the seawater outlet pipes are communicated with the upper portion of the flow channel; the seawater-atmosphere-shared pipe is communicated with the top of the flow channel; the atmosphere ventilation pipe is communicated with the top of the flow channel; the drainage pipe is communicated with the bottom of the flow channel. According to the non-kinetic energy containment vessel cooling system of the floating nuclear power plant, natural circulation is formed through gravity and floating force of seawater, the heat in the containment vessel is transferred to the seawater, it is guaranteed that hyperpressure of the containment vessel does not occur, the integrity of the containment vessel is maintained, and the non-kinetic energy containment vessel cooling system has the advantages of being simple and reliable.
Description
Technical field
Nuclear plant safety protection system of the present invention, particularly relates to a kind of non-kinetic containment cooling system of floating nuclear power plant.
Background technology
When conventional pressurized water piles up loss of-coolant accident (LOCA) or containment internal steam pipe road break accident, utilize containment spray system to discharge heat in containment, reduce containment pressure and temperature, to reach the integrality maintaining containment.When there is above-mentioned accident, third generation passive PWR nuclear power station utilizes steel containment vessel as a heating surface, and heat in the condensation of containment inside surface and heated interior surfaces, is then passed to steel sheel by heat conduction by steam.The box hat outside surface be heated, by heat transfer mechanisms such as convection current, radiation and evaporations, is cooled by water and air.Water is provided by containment top water tank, heat is taken out of by the air of Natural Circulation with the form of sensible heat and water vapor, air from environment is often opened runner by one and is entered, rise along containment outer wall, return environment eventually through a high-order exhausr port, realize the object taking away heat in containment.
In conventional pressurized water heap, the realization of ultimate heat sink function need rely on rotating machinery, and in the containment cooling system of third generation passive PWR nuclear power station, the capacity of containment top water tank is limited.For floating nuclear power plant, seawater is inexhaustible, use not to the utmost.Floating nuclear power plant can using seawater as natural ultimate heat sink; if one can be designed, and there is long-term refrigerating function; and there is the containment cooling system of non-energy dynamic characteristic, make heat enter seawater, by making, the safety system of floating nuclear power plant is more safe and reliable.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of Passive containment cooling system of floating nuclear power plant.
The Passive containment cooling system of floating nuclear power plant comprises:
Containment;
Involucrum; Described involucrum is set in the outside of described containment, and is provided with runner between described containment;
Seawater back with water inlet line; Described seawater back with water inlet line is communicated with the bottom of described runner;
Seawater water outlet pipeline; Described seawater water outlet pipeline is communicated with the top of described runner;
Seawater and air shared pipeline; Described seawater is communicated with the top of air bridging line with described runner;
Dtmospheric pipe; Described dtmospheric pipe is communicated with the top of described runner;
Hydrophobic pipeline; Described hydrophobic pipeline is communicated with the bottom of described runner.
Preferably, seawater back with water inlet line isolation valve is also comprised; Described seawater back with water inlet line isolation valve is arranged in described seawater back with water inlet line, for controlling being communicated with or isolation of seawater outside described seawater back with water inlet line and described runner.
Preferably, seawater back with water inlet line filter screen is also comprised; Described seawater back with water inlet line filter screen is arranged in described seawater back with water inlet line.
Preferably, seawater water outlet pipeline isolation valve is also comprised; Described seawater water outlet pipeline isolation valve is arranged on described seawater water outlet pipeline, for controlling being communicated with or isolation of seawater outside described seawater water outlet pipeline and described runner.
Preferably, seawater water outlet pipeline filter screen is also comprised; Described seawater water outlet pipeline filter screen is arranged on described seawater water outlet pipeline.
Preferably, described runner is communicated with air shared pipeline with described seawater by described dtmospheric pipe.
Preferably, hydrophobic pipeline isolation valve is also comprised; Described hydrophobic pipeline isolation valve is arranged on described hydrophobic pipeline, for controlling being communicated with or isolation of seawater outside described hydrophobic pipeline and described runner.
Preferably, also drainage pump is comprised; Described drainage pump is arranged on described hydrophobic pipeline.
Preferably, dtmospheric pipe isolation valve is also comprised; Described dtmospheric pipe isolation valve is arranged on described dtmospheric pipe, for controlling being communicated with or isolation of air outside described dtmospheric pipe and described runner.
Preferably, the number of described seawater back with water inlet line is two.
Preferably, the number of described seawater water outlet pipeline is two.
The Passive containment cooling system of floating nuclear power plant provided by the invention is arranged in floating nuclear power plant dividing plate.When power station is normally run, passive containment system is in stand-by state, is isolated by the seawater outside runner and runner by seawater back with water inlet line isolation valve and seawater water outlet pipeline isolation valve.Dtmospheric pipe isolation valve is opened, and runner is communicated with the air outside runner, and hydrophobic pipeline isolation valve 14 cuts out.
When having an accident and need passive containment system as ultimate heat sink, close dtmospheric pipe isolation valve, open seawater back with water inlet line isolation valve and seawater water outlet pipeline isolation valve, seawater enters runner through seawater back with water inlet line filter screen, seawater back with water inlet line, seawater water outlet pipeline filter screen and seawater water outlet pipeline.Heat in containment passes to seawater in runner by containment, after seawater is heated, upwards flows under the effect of buoyancy, discharges, heat is entered seawater through seawater water outlet pipeline.Seawater constantly enters runner through seawater back with water inlet line filter screen, completes Natural Circulation, thus takes away the heat in containment.
When running without the need to Passive containment cooling system, hydrophobic pipeline isolation valve can be opened, utilizing drainage pump to be discharged by the seawater remained in runner.
Compared with prior art, the present invention has following beneficial effect:
1, the non-kinetic containment cooling system of floating nuclear power plant provided by the invention, utilize the gravity of seawater and buoyancy to form Natural Circulation, the heat in containment is passed to seawater, ensures containment not superpressure, maintain the integrality of containment, there is simple and reliable advantage.
2, consider based on redundancy, seawater back with water inlet line and seawater water outlet pipeline are provided with two loops respectively, for ensureing the availability of system.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the Passive containment cooling system of the floating nuclear power plant meeting the preferred embodiment of the present invention.
Another angle schematic diagram that Fig. 2 is structure shown in Fig. 1.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As illustrated in fig. 1 and 2, the Passive containment cooling system of floating nuclear power plant comprises:
Containment 1;
Involucrum 2; Described involucrum 2 is set in the outside of described containment 1, and is provided with runner 3 between described containment 1;
Two seawater back with water inlet line (6,6 '); Seawater back with water inlet line (6/6 ') is communicated with the bottom of described runner 3;
Two seawater water outlet pipelines (10,10 '); Described seawater water outlet pipeline (10/10 ') is communicated with the top of described runner 3;
Seawater and air shared pipeline 8; Described seawater is communicated with the top of air bridging line 8 with described runner 3;
Dtmospheric pipe 7; Described dtmospheric pipe 7 is communicated with the top of described runner 3, is communicated with by the air of runner 3 with sea level more than 02;
Hydrophobic pipeline 13; Described hydrophobic pipeline 13 is communicated with the bottom of described runner 3.
Preferably, two seawater back with water inlet line isolation valves (5,5 ') are also comprised; Two described seawater back with water inlet line isolation valves (5,5 ') are separately positioned on two described seawater back with water inlet line (6,6 '), for controlling being communicated with or isolation of seawater outside described seawater back with water inlet line (6/6 ') and described runner 3.
Preferably, two seawater back with water inlet line filter screens (4,4 ') are also comprised; Two described seawater back with water inlet line filter screens (4,4 ') are separately positioned on two described seawater back with water inlet line (6,6 ').
Preferably, two seawater water outlet pipelines isolation valve (11,11 ') are also comprised; Two described seawater water outlet pipelines isolation valve (11,11 ') are separately positioned on two described seawater water outlet pipelines (10,10 '), for controlling being communicated with or isolation of seawater outside described seawater water outlet pipeline (10/10 ') and described runner 3.
Preferably, two seawater water outlet pipelines filter screen (12,12 ') are also comprised; Two described seawater water outlet pipelines filter screen (12,12 ') are separately positioned on two described seawater water outlet pipelines (10,10 ').
Preferably, described runner 3 is communicated with air shared pipeline 7 with described seawater by described dtmospheric pipe 8.
Preferably, hydrophobic pipeline isolation valve 14 is also comprised; Described hydrophobic pipeline isolation valve 14 is arranged on described hydrophobic pipeline 13, for controlling being communicated with or isolation of seawater outside described hydrophobic pipeline 13 and described runner 3.
Preferably, drainage pump 15 is also comprised; Described drainage pump 15 is arranged on described hydrophobic pipeline 13.
Preferably, dtmospheric pipe isolation valve 9 is also comprised; Described dtmospheric pipe isolation valve 9 is arranged on described dtmospheric pipe 8, for controlling being communicated with or isolation of air outside described dtmospheric pipe 8 and described runner 3.
The Passive containment cooling system of the floating nuclear power plant that the present embodiment provides is arranged in floating nuclear power plant dividing plate 01.When power station is normally run, passive containment system is in stand-by state, is isolated by the seawater outside runner and runner by seawater back with water inlet line isolation valve and seawater water outlet pipeline isolation valve.Dtmospheric pipe isolation valve is opened, and runner is communicated with the air outside runner, and hydrophobic pipeline isolation valve 14 cuts out.
When having an accident and need passive containment system as ultimate heat sink, close dtmospheric pipe isolation valve, open seawater back with water inlet line isolation valve and seawater water outlet pipeline isolation valve, seawater enters runner through seawater back with water inlet line filter screen, seawater back with water inlet line, seawater water outlet pipeline filter screen and seawater water outlet pipeline.Heat in containment passes to seawater in runner by containment, after seawater is heated, upwards flows under the effect of buoyancy, discharges, heat is entered seawater through seawater water outlet pipeline.Seawater constantly enters runner through seawater back with water inlet line filter screen, completes Natural Circulation, thus takes away the heat in containment.
When running without the need to Passive containment cooling system, hydrophobic pipeline isolation valve can be opened, utilizing drainage pump to be discharged by the seawater remained in runner.
Compared with prior art, the present invention has following beneficial effect:
1, the non-kinetic containment cooling system of floating nuclear power plant provided by the invention, utilize the gravity of seawater and buoyancy to form Natural Circulation, the heat in containment is passed to seawater, ensures containment not superpressure, maintain the integrality of containment, there is simple and reliable advantage.
2, consider based on redundancy, seawater back with water inlet line and seawater water outlet pipeline are provided with two loops respectively, for ensureing the availability of system.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For system disclosed in embodiment, owing to corresponding to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Those skilled in the art can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a Passive containment cooling system for floating nuclear power plant, is characterized in that, comprising:
Containment;
Involucrum; Described involucrum is set in the outside of described containment, and is provided with runner between described containment;
Seawater back with water inlet line; Described seawater back with water inlet line is communicated with the bottom of described runner;
Seawater water outlet pipeline; Described seawater water outlet pipeline is communicated with the top of described runner;
Seawater and air shared pipeline; Described seawater is communicated with the top of air bridging line with described runner;
Dtmospheric pipe; Described dtmospheric pipe is communicated with the top of described runner;
Hydrophobic pipeline; Described hydrophobic pipeline is communicated with the bottom of described runner.
2. the Passive containment cooling system of floating nuclear power plant as claimed in claim 1, is characterized in that, also comprise seawater back with water inlet line isolation valve; Described seawater back with water inlet line isolation valve is arranged in described seawater back with water inlet line, for controlling being communicated with or isolation of seawater outside described seawater back with water inlet line and described runner.
3. the Passive containment cooling system of floating nuclear power plant as claimed in claim 1, is characterized in that, also comprise seawater back with water inlet line filter screen; Described seawater back with water inlet line filter screen is arranged in described seawater back with water inlet line.
4. the Passive containment cooling system of floating nuclear power plant as claimed in claim 1, is characterized in that, also comprise seawater water outlet pipeline isolation valve; Described seawater water outlet pipeline isolation valve is arranged on described seawater water outlet pipeline, for controlling being communicated with or isolation of seawater outside described seawater water outlet pipeline and described runner.
5. the Passive containment cooling system of floating nuclear power plant as claimed in claim 1, is characterized in that, also comprise seawater water outlet pipeline filter screen; Described seawater water outlet pipeline filter screen is arranged on described seawater water outlet pipeline.
6. the Passive containment cooling system of floating nuclear power plant as claimed in claim 1, it is characterized in that, described runner is communicated with air shared pipeline with described seawater by described dtmospheric pipe.
7. the Passive containment cooling system of floating nuclear power plant as claimed in claim 1, is characterized in that, also comprise hydrophobic pipeline isolation valve; Described hydrophobic pipeline isolation valve is arranged on described hydrophobic pipeline, for controlling being communicated with or isolation of seawater outside described hydrophobic pipeline and described runner.
8. the Passive containment cooling system of floating nuclear power plant as claimed in claim 1, is characterized in that, also comprise drainage pump; Described drainage pump is arranged on described hydrophobic pipeline.
9. the Passive containment cooling system of floating nuclear power plant as claimed in claim 1, is characterized in that, also comprise dtmospheric pipe isolation valve; Described dtmospheric pipe isolation valve is arranged on described dtmospheric pipe, for controlling being communicated with or isolation of air outside described dtmospheric pipe and described runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610003800.8A CN105489258A (en) | 2016-01-04 | 2016-01-04 | Non-kinetic energy containment vessel cooling system of floating nuclear power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610003800.8A CN105489258A (en) | 2016-01-04 | 2016-01-04 | Non-kinetic energy containment vessel cooling system of floating nuclear power plant |
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| CN105489258A true CN105489258A (en) | 2016-04-13 |
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| CN201610003800.8A Pending CN105489258A (en) | 2016-01-04 | 2016-01-04 | Non-kinetic energy containment vessel cooling system of floating nuclear power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273115A (en) * | 2018-10-31 | 2019-01-25 | 中国船舶重工集团公司第七〇九研究所 | A kind of the containment heat derivation device and its heat derives method of nuclear power unit |
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2016
- 2016-01-04 CN CN201610003800.8A patent/CN105489258A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273115A (en) * | 2018-10-31 | 2019-01-25 | 中国船舶重工集团公司第七〇九研究所 | A kind of the containment heat derivation device and its heat derives method of nuclear power unit |
| CN109273115B (en) * | 2018-10-31 | 2023-08-15 | 中国船舶重工集团公司第七一九研究所 | Containment heat-conducting device and heat-conducting method for nuclear power plant |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
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Effective date of registration: 20181015 Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Applicant after: Shanghai Shen Nuclear Energy Engineering Technology 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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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Applicant after: Shanghai Shen Nuclear Energy Engineering Technology Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Applicant before: Shanghai Shen Nuclear Energy Engineering Technology Co.,Ltd. |
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