CN105825899A - Containment cooling system of nuclear power station - Google Patents
Containment cooling system of nuclear power station Download PDFInfo
- Publication number
- CN105825899A CN105825899A CN201610297957.6A CN201610297957A CN105825899A CN 105825899 A CN105825899 A CN 105825899A CN 201610297957 A CN201610297957 A CN 201610297957A CN 105825899 A CN105825899 A CN 105825899A
- Authority
- CN
- China
- Prior art keywords
- containment
- cooling system
- water
- power station
- nuclear power
- 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 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000002347 injection Methods 0.000 claims abstract description 27
- 239000007924 injection Substances 0.000 claims abstract description 27
- 239000007921 spray Substances 0.000 claims description 25
- 230000003020 moisturizing effect Effects 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 12
- 230000008901 benefit Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 6
- 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
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000007704 transition Effects 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
-
- 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
- G21C15/182—Emergency cooling arrangements; Removing shut-down heat comprising powered means, e.g. pumps
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The invention provides a containment cooling system of a nuclear power station. The containment cooling system comprises a water injection tank, high-pressure gas and water are contained in the water injection tank, the water injection tank sprinkles water to the outer surface of a containment through high-pressure injection to cool the containment by means of configuration, and it is ensured that pressure of the containment does not exceed. According to the containment cooling system of the nuclear power station, atmosphere is used as a final heat sink, the water is sprinkled to the outer surface of the containment to cool the containment through high-pressure injection, it is ensured that pressure of the containment does not exceed, and integrity of the containment is maintained. The containment cooling system has the advantages of being simple and reliable.
Description
Technical field
The present invention relates to nuclear power station safety full guard system, be specifically related to the containment cooling system of a kind of nuclear power station.
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-order air vent.
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 Seismic Design Requirements of containment top water tank is high.If the containment cooling system of a kind of simple in construction can be designed, and with air as ultimate heat sink, by more safe and reliable for the safety system making nuclear power station.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose the containment cooling system of a kind of nuclear power station.
The containment cooling system of nuclear power station includes water injecting tank；Described water injecting tank is built with gases at high pressure and water；Described water injecting tank is configured and utilizes high-pressure injection that water is spread across containment outer surface to cool down containment, it is ensured that containment not superpressure, thus maintains the integrity of containment, has simple and reliable advantage；Described water injecting tank is provided with moisturizing interface and outlet；Described moisturizing interface connects with external water source, in order to make external water source moisturizing in described water injecting tank, to maintain the longtime running of containment cooling system；Described outlet is corresponding with containment, and gases at high pressure and water in making described water injecting tank are spread across containment outer surface.
Preferably, spray equipment is also included；Described spray equipment includes spray thrower and shower nozzle；One end of described spray thrower and described outlet, the other end connects with described shower nozzle；Gases at high pressure and water in described water injecting tank flow into described spray thrower through described outlet, and are spread across containment outer surface by described shower nozzle.
Preferably, described outlet is connected with described spray thrower by waterflood-transmission line.
Preferably, described injection pipeline is provided with injection pipeline isolating valve, in order to control the break-make of described injection pipeline.
Preferably, described exit is provided with outlet isolating valve, in order to control the switch of described outlet.
Preferably, described moisturizing interface is connected with external water source by moisturizing pipeline.
Preferably, described moisturizing pipeline is provided with check-valves.
Being preferably based on redundancy to consider, the number of described water injecting tank is at least two, and at least two water injecting tank injects pipeline by a road respectively and connects with spray equipment, for ensureing the availability of system.
Preferably, the top of the shielding Factory Building at containment place is provided with steam drain.When containment cooling system runs, the water in water injecting tank is injected into spray thrower, is spread across containment outer surface through shower nozzle, and water flashes to gas in the heat absorption of containment outer surface, flows into air through steam drain, takes the heat in containment out of.
Compared with prior art, the method have the advantages that
1, the containment cooling system of the nuclear power station that the present invention provides, with air as ultimate heat sink, utilize high-pressure injection that water is spread across containment outer surface and containment is cooled down, it is ensured that containment not superpressure, maintain the integrity of containment, there is simple and reliable advantage.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the containment cooling system of the nuclear power station meeting the preferred embodiment of the present invention.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, the present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
As it is shown in figure 1, the containment cooling system of nuclear power station includes water injecting tank (4,4 ')；Described water injecting tank (4,4 ') is built with gases at high pressure and water；Described water injecting tank (4,4 ') is configured and utilizes high-pressure injection that water is spread across containment 1 outer surface to cool down containment 1, it is ensured that containment 1 not superpressure, thus maintains the integrity of containment 1, has simple and reliable advantage；Described water injecting tank (4,4 ') is provided with moisturizing interface (10,10 ') and outlet；Described moisturizing interface (10,10 ') connects with external water source, in order to make external water source moisturizing in described water injecting tank (4,4 '), to maintain the longtime running of containment cooling system；Described outlet is corresponding with containment 1, is used for making the gases at high pressure in described water injecting tank (4,4 ') and water to be spread across containment 1 outer surface.
Preferably, spray equipment is also included；Described spray equipment includes spray thrower 11 and shower nozzle 12；One end of described spray thrower 11 and described outlet, the other end connects with described shower nozzle 12；Gases at high pressure and water in described water injecting tank (4,4 ') flow into described spray thrower 11 through described outlet, and are spread across containment 1 outer surface by described shower nozzle 12.
Preferably, described outlet is connected with described spray thrower 11 by waterflood-transmission line (5,5 ').
Preferably, described injection pipeline (5,5 ') is provided with injection pipeline isolating valve (7,7 '), in order to control the break-make of described injection pipeline (5,5 ').
Preferably, described exit is provided with outlet isolating valve (6,6 '), in order to control the switch of described outlet.
Preferably, described moisturizing interface (10,10 ') is connected with external water source by moisturizing pipeline (9,9 ').
Preferably, described moisturizing pipeline (9,9 ') is provided with check-valves (8,8 ').
Being preferably based on redundancy to consider, the number of described water injecting tank (4,4 ') is at least two, and at least two water injecting tank injects pipeline by a road respectively and connects with spray equipment, for ensureing the availability of system.
Preferably, the top of the shielding Factory Building 2 at containment 1 place is provided with steam drain 3.When containment cooling system runs, water in water injecting tank (4,4 ') is injected into spray thrower 11, is spread across containment 1 outer surface through shower nozzle 12, and water flashes to gas in the heat absorption of containment 1 outer surface, flow into air through steam drain 3, take the heat in containment 1 out of.
Compared with prior art, the present embodiment has the advantages that
1, the containment cooling system of the nuclear power station that the present embodiment provides, with air as ultimate heat sink, utilize high-pressure injection that water is spread across containment outer surface and containment is cooled down, it is ensured that containment not superpressure, maintain the integrity of containment, there is simple and reliable advantage.
The operation principle of the containment cooling system of the nuclear power station of the present embodiment is as follows: the containment cooling system of nuclear power station is arranged on outside containment, when power station is properly functioning, containment cooling system is in resting state, high pressure water injection case outlet isolating valve (6,6 ') and injection pipeline isolating valve (7,7 ') are closed, high pressure water injection case is isolated, and steam drain 3 is in normally open all the time.
When having an accident and need containment cooling system as hot trap, high pressure water injection case outlet isolating valve (6, 6 ') and inject pipeline isolating valve (7, 7 ') open, high pressure water injection case (4, 4 ') in, water is under the effect of gases at high pressure, by injecting pipeline (5, 5 ') spray thrower 11 is entered, and the outer surface of containment 1 it is spread across through shower nozzle 12, water is under gravity along containment 1 flow downwards, in flow process, continuous endothermic transition is steam, depart from containment surface subsequently to flow up, eventually pass through steam drain 3 and flow into air, thus the heat of containment 1 is taken out of.
When needs containment cooling system longtime running, can pass through moisturizing interface (10,10 ') and connect other available water sources, profit pumps up and supplies water to spray thrower, maintains the longtime running of containment cooling system.Inject pipeline isolating valve (7,7 ') furthermore, it is possible to close, open high pressure water injection case outlet isolating valve (6,6 '), by moisturizing interface (10,10 ') to high pressure water injection case moisturizing.
The containment cooling system of said process utilizes high-pressure injection that water is spread across containment outer surface and cools down containment, it is ensured that containment not superpressure, maintains the integrity of containment, has simple and reliable advantage
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 can use different methods to realize described function to each specifically should being used for, but this realization is it is not considered that beyond the scope of this invention.
Obviously, those skilled in the art can carry out various change and modification without departing from the spirit and scope of the present invention to invention.So, 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 change and including modification include these.
Claims (9)
1. the containment cooling system of a nuclear power station, it is characterised in that include water injecting tank；Described water injecting tank is built with gases at high pressure and water；Described water injecting tank is configured and utilizes high-pressure injection that water is spread across containment outer surface to cool down containment, it is ensured that containment not superpressure；Described water injecting tank is provided with moisturizing interface and outlet；Described moisturizing interface connects with external water source, in order to make external water source moisturizing in described water injecting tank；Described outlet is corresponding with containment, and gases at high pressure and water in making described water injecting tank are spread across containment outer surface.
2. the containment cooling system of nuclear power station as claimed in claim 1, it is characterised in that also include spray equipment；Described spray equipment includes spray thrower and shower nozzle；One end of described spray thrower and described outlet, the other end connects with described shower nozzle；Gases at high pressure and water in described water injecting tank flow into described spray thrower through described outlet, and are spread across containment outer surface by described shower nozzle.
3. the containment cooling system of nuclear power station as claimed in claim 2, it is characterised in that described outlet is connected with described spray thrower by waterflood-transmission line.
4. the containment cooling system of nuclear power station as claimed in claim 3, it is characterised in that described injection pipeline is provided with injection pipeline isolating valve, in order to control the break-make of described injection pipeline.
5. the containment cooling system of nuclear power station as claimed in claim 1, it is characterised in that described exit is provided with outlet isolating valve, in order to control the switch of described outlet.
6. the containment cooling system of nuclear power station as claimed in claim 1, it is characterised in that described moisturizing interface is connected with external water source by moisturizing pipeline.
7. the containment cooling system of nuclear power station as claimed in claim 6, it is characterised in that described moisturizing pipeline is provided with check-valves.
8. the containment cooling system of nuclear power station as claimed in claim 1, it is characterised in that the number of described water injecting tank is at least two.
9. the containment cooling system of nuclear power station as claimed in claim 1, it is characterised in that the top of the shielding Factory Building at containment place is provided with steam drain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610297957.6A CN105825899A (en) | 2016-05-06 | 2016-05-06 | Containment cooling system of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610297957.6A CN105825899A (en) | 2016-05-06 | 2016-05-06 | Containment cooling system of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105825899A true CN105825899A (en) | 2016-08-03 |
Family
ID=56528328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610297957.6A Pending CN105825899A (en) | 2016-05-06 | 2016-05-06 | Containment cooling system of nuclear power station |
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| Country | Link |
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| CN (1) | CN105825899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107564592A (en) * | 2017-07-25 | 2018-01-09 | 中国核电工程有限公司 | A kind of passive air cooling containment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202816402U (en) * | 2012-06-13 | 2013-03-20 | 中国核动力研究设计院 | Passive containment spraying-submerged cooling system |
| CN103489490A (en) * | 2012-06-13 | 2014-01-01 | 中国核动力研究设计院 | Passive containment vessel spraying device |
| CN104751910A (en) * | 2013-12-31 | 2015-07-01 | 中国广核集团有限公司 | Emergency spray cooling system for containment in accident condition of nuclear power plant |
| CN104934078A (en) * | 2015-05-11 | 2015-09-23 | 中国核电工程有限公司 | Passive containment cooling system keeping dynamic circulation of cooling water |
| 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 |
| CN205881479U (en) * | 2016-05-06 | 2017-01-11 | 上海核工程研究设计院 | Containment cooling system of nuclear power station |
-
2016
- 2016-05-06 CN CN201610297957.6A patent/CN105825899A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202816402U (en) * | 2012-06-13 | 2013-03-20 | 中国核动力研究设计院 | Passive containment spraying-submerged cooling system |
| CN103489490A (en) * | 2012-06-13 | 2014-01-01 | 中国核动力研究设计院 | Passive containment vessel spraying device |
| CN104751910A (en) * | 2013-12-31 | 2015-07-01 | 中国广核集团有限公司 | Emergency spray cooling system for containment in accident condition of nuclear power plant |
| CN104934078A (en) * | 2015-05-11 | 2015-09-23 | 中国核电工程有限公司 | Passive containment cooling system keeping dynamic circulation of cooling water |
| 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 |
| CN205881479U (en) * | 2016-05-06 | 2017-01-11 | 上海核工程研究设计院 | Containment cooling system of nuclear power station |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107564592A (en) * | 2017-07-25 | 2018-01-09 | 中国核电工程有限公司 | A kind of passive air cooling containment |
| CN107564592B (en) * | 2017-07-25 | 2021-08-24 | 中国核电工程有限公司 | Passive air-cooling containment vessel |
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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. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
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