CN205582506U - Containment cooling system of floating nuclear power plant - Google Patents
Containment cooling system of floating nuclear power plant Download PDFInfo
- Publication number
- CN205582506U CN205582506U CN201620005991.7U CN201620005991U CN205582506U CN 205582506 U CN205582506 U CN 205582506U CN 201620005991 U CN201620005991 U CN 201620005991U CN 205582506 U CN205582506 U CN 205582506U
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- China
- Prior art keywords
- containment
- cooling system
- cooling
- water
- nuclear power
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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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- 238000001816 cooling Methods 0.000 title claims abstract description 76
- 239000013535 sea water Substances 0.000 claims abstract description 45
- 239000000498 cooling water Substances 0.000 claims abstract description 34
- 230000002209 hydrophobic effect Effects 0.000 claims description 30
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 230000001066 destructive effect Effects 0.000 claims description 8
- 238000007654 immersion Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 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
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 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
- 238000002372 labelling Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The utility model provides a containment cooling system of floating nuclear power plant includes: the containment, set up in the outside involucrum of containment, and the involucrum with the cooling chamber who constitutes between the containment, cooling system utilizes the siphonage to introduce the sea water cooling chamber is right the containment cools off. The utility model discloses regard as the cooling water with the sea water to the atmosphere is final hot trap, utilizes the siphonage to introduce cooling chamber with the sea water and cools off the containment, guarantees not superpressure of containment, maintains the integrality of containment, has simple and reliable advantage.
Description
Technical field
This utility model relates to the safety system of a kind of floating nuclear power plant, particularly relates to a kind of containment cooling system.
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 to maintain the integrity of containment.When there is above-mentioned accident, third generation passive PWR nuclear power station utilizes steel containment vessel at the condensation of containment inner surface heated interior surfaces, then to transfer heat to steel sheel by heat conduction as a heating surface, steam.The box hat outer surface being heated by convection current, radiate and the heat transfer mechanisms such as evaporation, water and air cool down.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 steam, and the air from environment is entered by a normally opened runner, rises along containment outer wall, environment is returned, it is achieved take away the purpose of heat in containment eventually through high position exhausting mouth.
In conventional pressurized water heap, the realization of ultimate heat sink function need to 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, sea water is inexhaustible, use not to the utmost.Floating nuclear power plant if a kind of containment cooling system with long-term refrigerating function can be designed, can make heat enter air, by more safe and reliable for the safety system making floating nuclear power plant using sea water as cooling water.
Utility model content
This utility model, for the deficiencies in the prior art, proposes a kind of to utilize siphonage that sea water introduces the containment cooling system that containment is cooled down by cooling chamber.
The containment cooling system of the floating nuclear power plant that this utility model provides includes containment, is arranged at the involucrum outside described containment, and between described involucrum and described containment constitute cooling chamber, described cooling system utilizes siphonage that sea water introduces described cooling chamber and cools down described containment；Wherein, siphon piping is set between sea water and described cooling chamber；Wherein, steam discharge pipeline is set between described cooling chamber and air；Cooling water collector, cooling water water injection pipe and vacuum extractor it is additionally provided with in described cooling chamber；When having an accident and need described containment as ultimate heat sink, sea water is driven to flow into described siphon piping and be assigned in described cooling water water injection pipe by described cooling water collector by the vacuum ejector in described vacuum extractor, sea water is made to flow to described containment surface and make described containment keep depth of immersion, make turn seawater be the heat that steam takes away in described containment by heat exchange, eventually through described steam discharge pipeline, heat is arranged to air；Wherein, described cooling water collector is arranged on described vacuum ejector exit, and, described cooling water water injection pipe around described containment circumferentially so that sea water flow to described containment surface and make described containment keep depth of immersion；Wherein, described steam discharge pipeline is arranged on the top of described cooling chamber；Wherein, described cooling system also includes hydrophobic pipeline and drainage pump, and it is arranged on bottom described cooling chamber, for discharging the sea water in cooling chamber without containment cooling system when running；Wherein, described vacuum extractor also includes that gas cylinder is as driving gas.
Preferably, described cooling system also includes: siphon destructive valve, and it is arranged on the siphon destructive pipeline being connected with described siphon piping；Driving gas isolation valve, it is arranged on the driving gas line being connected with described gas cylinder；And hydrophobic pipeline isolating valve, it is arranged on described hydrophobic pipeline.
Preferably, described hydrophobic pipeline includes that hydrophobic inlet line and hydrophobic outlet line, described hydrophobic inlet line, described hydrophobic pipeline isolating valve, described drainage pump and described hydrophobic outlet line are sequentially connected with.
Preferably, described gas cylinder, driving gas check valve, described driving gas isolation valve, described driving gas line are sequentially connected with described vacuum ejector.
Preferably, filter screen is set in described siphon piping porch.
Preferably, described cooling system includes at least two siphon loop.
Compared with prior art, this utility model has the advantages that
1. this utility model devises involucrum outside containment, cooling chamber is constituted between involucrum and containment, by the setting of cooling chamber, using sea water as cooling water, with air as ultimate heat sink, utilize siphonage that sea water is introduced cooling chamber and containment is cooled down, it is ensured that containment not superpressure, maintain the integrity of containment, there is simple and reliable advantage.
2. between sea water and cooling chamber, it is provided with siphon piping and drives sea water to flow into siphon by vacuum extractor, perforate below the liquid level of sea level can be avoided to cause sea water to leak.
3. being provided with cooling water collector and around containment cooling water water injection pipe circumferentially, logical supercooled water collector is assigned in cooling water water injection pipe circumferentially so that cooling water flows to containment surface the certain depth of immersion making containment keep.
4. consider based on redundancy, be provided with two siphon loops, for ensureing the availability of system.
Accompanying drawing explanation
Fig. 1 is the front view of the containment cooling system general flow chart of floating nuclear power plant.
Fig. 2 is the partial top view of the containment cooling system general flow chart of floating nuclear power plant.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, with detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
For apparent understanding this utility model, below as a example by containment system runs, in conjunction with Fig. 1 and Fig. 2, the containment cooling system of floating nuclear power plant of the present utility model is described further.
As depicted in figs. 1 and 2, the containment cooling system of the floating nuclear power plant of embodiment of the present utility model, including containment 1, it is arranged at the involucrum 2 outside containment, and between involucrum 1 and containment 2 constitute cooling chamber 3, described cooling system utilizes siphonage that sea water introduces cooling chamber 3 and cools down containment 1.This utility model, using sea water as cooling water, with air as ultimate heat sink, utilizes siphonage that sea water is introduced cooling chamber and cools down containment, it is ensured that containment not superpressure, maintains the integrity of containment, has simple and reliable advantage.
As it is shown in figure 1, arrange siphon piping 5 between sea water and described cooling chamber, it is to avoid below the liquid level of sea level, perforate causes sea water to leak.Steam discharge pipeline 15 is set between cooling chamber 3 and air；Cooling water collector 9, cooling water water injection pipe 10 and vacuum extractor it is additionally provided with in cooling chamber 3.When having an accident and need described containment as ultimate heat sink, sea water is driven to flow into siphon piping 5 and be assigned to cool down in water water injection pipe 10 by described cooling water collector 9 by the vacuum ejector 8 in described vacuum extractor, sea water is made to flow to containment 1 surface and make containment 1 keep depth of immersion, make turn seawater be the heat that steam takes away in described containment by heat exchange, eventually through steam discharge pipeline 15, heat is arranged to air.
As depicted in figs. 1 and 2, cooling water collector 9 is arranged on described vacuum ejector exit；Wherein, water water injection pipe 10 is cooled down around containment 1 circumferentially, so that sea water flows to containment 1 surface and makes containment 1 keep depth of immersion.Such as, around containment 1 circumferentially, cooling water water injection pipe 10 is distributed in circumference on cooling water collector 9 and is evenly arranged cooling water collector 9, to reach to inject cooling water to containment 1.
As it is shown in figure 1, described steam discharge pipeline is arranged on the top of described cooling chamber；Described cooling system also includes hydrophobic pipeline and drainage pump 18, and it is arranged on bottom cooling chamber 3, for discharging the sea water in cooling chamber 3 without containment cooling system when running.
As it is shown in figure 1, described vacuum extractor also includes that gas cylinder 14 is as driving gas.
Preferably, as it is shown in figure 1, described cooling system also includes: siphon destructive valve 7, it is arranged on the siphon destructive pipeline 6 being connected with siphon piping 5；Driving gas isolation valve 12, it is arranged on the driving gas line 11 being connected with described gas cylinder；And hydrophobic pipeline isolating valve 17, it is arranged on described hydrophobic pipeline.The containment cooling system of described floating nuclear power plant is arranged in floating nuclear power plant dividing plate, and when power station is properly functioning, containment system is in resting state, siphon destructive valve 7 is closed, driving gas isolation valve 12 to close, hydrophobic pipeline isolating valve 17 cuts out, cooling chamber 3 and atmosphere.
Preferably, as it is shown in figure 1, described hydrophobic pipeline includes hydrophobic inlet line 16 and hydrophobic outlet line 19.Wherein, hydrophobic inlet line 16, hydrophobic pipeline isolating valve 17, drainage pump 18 and hydrophobic outlet line 19 are sequentially connected with.When running without containment cooling system, siphon destructive valve 7 can be opened and terminate sea water and flow into cooling chamber 3, then open hydrophobic pipeline isolating valve 17, utilize drainage pump 18 to be discharged through hydrophobic outlet line 19 by sea water.
Preferably, as it is shown in figure 1, gas cylinder 14, driving gas check valve 13, driving gas isolation valve 12, driving gas line 11 are sequentially connected with vacuum ejector 8.
Preferably, as it is shown in figure 1, arrange filter screen 4 in siphon piping 5 porch.
Preferably, as depicted in figs. 1 and 2, when having an accident and need containment system as ultimate heat sink, open driving gas isolation valve 12, gas in gas cylinder 14 enters vacuum ejector 8 through gas line 11 of overdriving, air in siphon 5 is extracted out, pressure reduction is formed between sea water and siphon 5, thus sea water enters siphon 5 through siphon tube inlet filter screen 4, cooling water collector 9 is entered through vacuum ejector 8, flowing to containment Surface absorption heat through supercooled water water injection pipe 10 again, the final sea water maintained in cooling chamber floods height.Sea water is converted to steam after heat absorption, and steam enters air through steam discharge pipeline 15, thus takes away the heat in containment.
Preferably, described cooling system includes that at least two siphon loop, the design of the loop of at least two siphon herein are to consider based on redundancy, for ensureing the availability of system.Wherein, 4～8,10～14 is pipeline and the equipment of siphon loop 1, and 4 '～8 ', 10 '～14 ' is pipeline and the equipment of siphon loop 2, itself and the labelling one_to_one corresponding of siphon loop 1.
Seeing figures.1.and.2, said structure and work process are equally applicable to respective lines and the equipment of siphon loop 2.
Compared with prior art, this utility model has the advantages that
1. this utility model devises involucrum outside containment, cooling chamber is constituted between involucrum and containment, by the setting of cooling chamber, using sea water as cooling water, with air as ultimate heat sink, utilize siphonage that sea water is introduced cooling chamber and containment is cooled down, it is ensured that containment not superpressure, maintain the integrity of containment, there is simple and reliable advantage.
2. between sea water and cooling chamber, it is provided with siphon piping and drives sea water to flow into siphon by vacuum extractor, perforate below the liquid level of sea level can be avoided to cause sea water to leak.
3. being provided with cooling water collector and around containment cooling water water injection pipe circumferentially, logical supercooled water collector is assigned in cooling water water injection pipe circumferentially so that cooling water flows to containment surface the certain depth of immersion making containment keep.
Consider based on redundancy, be provided with two siphon loops, for ensureing the availability of system.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and between each embodiment, identical similar portion sees mutually.For system disclosed in embodiment, owing to corresponding to the method disclosed in Example, so describe is fairly simple, relevant part sees method part and illustrates.
Those skilled in the art specifically should can be used for using different methods to realize described function to each, but this realization is it is not considered that exceed scope of the present utility model.
Obviously, those skilled in the art can carry out various change and modification without deviating from spirit and scope of the present utility model to utility model.So, if these amendments of the present utility model and modification belong within the scope of this utility model claim and equivalent technologies thereof, then this utility model is also intended to change and including modification include these.
Claims (6)
1. the containment cooling system of a floating nuclear power plant, it is characterized in that, described cooling system includes containment, is arranged at the involucrum outside described containment, and between described involucrum and described containment constitute cooling chamber, described cooling system utilizes siphonage that sea water introduces described cooling chamber and cools down described containment；
Wherein, steam discharge pipeline is set between described cooling chamber and air；
Cooling water collector, cooling water water injection pipe and vacuum extractor it is additionally provided with in described cooling chamber；
When having an accident and need described containment as ultimate heat sink, sea water is driven to flow into siphon piping and be assigned in described cooling water water injection pipe by described cooling water collector by the vacuum ejector in described vacuum extractor, sea water is made to flow to described containment surface and make described containment keep depth of immersion, make turn seawater be the heat that steam takes away in described containment by heat exchange, eventually through described steam discharge pipeline, heat is arranged to air；
Wherein, described cooling water collector is arranged on described vacuum ejector exit, and, described cooling water water injection pipe around described containment circumferentially so that sea water flow to described containment surface and make described containment keep depth of immersion；
Wherein, described steam discharge pipeline is arranged on the top of described cooling chamber；
Wherein, described cooling system also includes hydrophobic pipeline and drainage pump, and it is arranged on bottom described cooling chamber, for discharging the sea water in cooling chamber without containment cooling system when running；
Wherein, described vacuum extractor also includes that gas cylinder is as driving gas.
2. the containment cooling system of floating nuclear power plant as claimed in claim 1, it is characterised in that described cooling system also includes: siphon destructive valve, and it is arranged on the siphon destructive pipeline being connected with described siphon piping；Driving gas isolation valve, it is arranged on the driving gas line being connected with described gas cylinder；And hydrophobic pipeline isolating valve, it is arranged on described hydrophobic pipeline.
3. the containment cooling system of floating nuclear power plant as claimed in claim 2, it is characterized in that, described hydrophobic pipeline includes that hydrophobic inlet line and hydrophobic outlet line, described hydrophobic inlet line, described hydrophobic pipeline isolating valve, described drainage pump and described hydrophobic outlet line are sequentially connected with.
4. the containment cooling system of floating nuclear power plant as claimed in claim 2, it is characterised in that described gas cylinder, driving gas check valve, described driving gas isolation valve, described driving gas line are sequentially connected with described vacuum ejector.
5. the containment cooling system of floating nuclear power plant as claimed in claim 1, it is characterised in that filter screen is set in described siphon piping porch.
6. the containment cooling system of the floating nuclear power plant as described in any claim in claim 1-5, it is characterised in that described cooling system includes at least two siphon loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620005991.7U CN205582506U (en) | 2016-01-04 | 2016-01-04 | Containment cooling system of floating nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620005991.7U CN205582506U (en) | 2016-01-04 | 2016-01-04 | Containment cooling system of floating nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205582506U true CN205582506U (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620005991.7U Withdrawn - After Issue CN205582506U (en) | 2016-01-04 | 2016-01-04 | Containment cooling system of floating nuclear power plant |
Country Status (1)
| Country | Link |
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| CN (1) | CN205582506U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448357A (en) * | 2016-01-04 | 2016-03-30 | 上海核工程研究设计院 | Containment shell cooling system of floating nuclear power plant |
| CN106531244A (en) * | 2016-11-28 | 2017-03-22 | 哈尔滨工程大学 | Passive containment vessel cooling system applicable to floating nuclear power plants |
| CN112582091A (en) * | 2020-12-25 | 2021-03-30 | 福建福清核电有限公司 | Exhaust device of nuclear power station nuclear island drainage exhaust system |
-
2016
- 2016-01-04 CN CN201620005991.7U patent/CN205582506U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448357A (en) * | 2016-01-04 | 2016-03-30 | 上海核工程研究设计院 | Containment shell cooling system of floating nuclear power plant |
| CN105448357B (en) * | 2016-01-04 | 2024-05-14 | 上海核工程研究设计院股份有限公司 | Containment cooling system of floating nuclear power station |
| CN106531244A (en) * | 2016-11-28 | 2017-03-22 | 哈尔滨工程大学 | Passive containment vessel cooling system applicable to floating nuclear power plants |
| CN112582091A (en) * | 2020-12-25 | 2021-03-30 | 福建福清核电有限公司 | Exhaust device of nuclear power station nuclear island drainage exhaust system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160914 Effective date of abandoning: 20240514 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160914 Effective date of abandoning: 20240514 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |