CN205881479U - Containment cooling system of nuclear power station - Google Patents
Containment cooling system of nuclear power station Download PDFInfo
- Publication number
- CN205881479U CN205881479U CN201620406534.9U CN201620406534U CN205881479U CN 205881479 U CN205881479 U CN 205881479U CN 201620406534 U CN201620406534 U CN 201620406534U CN 205881479 U CN205881479 U CN 205881479U
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- Prior art keywords
- containment
- water
- cooling system
- power station
- nuclear power
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- 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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- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The utility model provides a containment cooling system of nuclear power station, it includes the water injection case, the water injection incasement is equipped with high -pressure gas and water, the water injection case utilizes high pressure injection to spill the containment surface with water to cool off the containment through the configuration, guarantees not superpressure of containment. The utility model provides a containment cooling system of nuclear power station to the atmosphere is final hot trap, utilizes high pressure injection to spill the containment surface with 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 nuclear power station safety full guard system, is 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, containment spray system is utilized to arrange
Go out heat in containment, reduce containment pressure and temperature, to reach to maintain the integrity of containment.There is above-mentioned accident
Time, third generation passive PWR nuclear power station utilizes steel containment vessel as a heating surface, and steam is at containment inner surface
Condensation heated interior surfaces, then transfer heat to steel sheel by heat conduction.The box hat outer surface being heated passes through convection current, radiation
With heat transfer mechanisms such as evaporations, water and air cool down.Water is provided by containment top water tank, and heat is with sensible heat and steam
Form is taken out of by the air of Natural Circulation, and the air from environment is entered by a normally opened runner, along containment outer wall
Rise, return environment eventually through high-order air vent, it is achieved take away the purpose of heat in containment.
In conventional pressurized water heap, the realization of ultimate heat sink function need to rely on rotating machinery, third generation passive PWR core
In the containment cooling system in power station, the Seismic Design Requirements of containment top water tank is high.If a kind of simple in construction can be designed
Containment cooling system, and with air as ultimate heat sink, by more safe and reliable for the safety system making nuclear power station.
Utility model content
This utility model, for the deficiencies in the prior art, proposes 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 note
Water 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 maintain the integrity of containment, there is 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 containment cooling system
Longtime running；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；The one of described spray thrower
End and described outlet, the other end connects with described shower nozzle；Gases at high pressure and water in described water injecting tank flow through described outlet
Enter described spray thrower, and be spread across containment outer surface by described shower nozzle.
Preferably, described outlet is connected with described spray thrower by injecting pipeline.
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 leads to respectively
Cross a road injection pipeline to connect 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, note
Water in water tank is injected into spray thrower, is spread across containment outer surface through shower nozzle, and water flashes in the heat absorption of containment outer surface
Gas, flows into air through steam drain, takes the heat in containment out of.
Compared with prior art, this utility model has the advantages that
1, the containment cooling system of the nuclear power station that this utility model provides, with air as ultimate heat sink, utilizes high pressure injection
Penetrate Jiang Shui to be spread across containment outer surface containment is cooled down, it is ensured that containment not superpressure, maintain the integrity of containment, tool
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 this utility model preferred embodiment.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings and tool
This utility model is described in further detail by body embodiment.
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-in
There are gases at high pressure and water；Described water injecting tank (4,4 ') is configured and utilizes high-pressure injection water to be spread across containment 1 outer surface to safety
Shell 1 cools down, it is ensured that containment 1 not superpressure, thus maintains the integrity of containment 1, has simple and reliable advantage；Institute
State water injecting tank (4,4 ') and be 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 go out
Mouthful corresponding with containment 1, it 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；Described spray thrower
One end of 11 and described outlet, the other end connects with described shower nozzle 12；Gases at high pressure in described water injecting tank (4,4 ') and
Water flows into described spray thrower 11 through described outlet, and is spread across containment 1 outer surface by described shower nozzle 12.
Preferably, described outlet is connected with described spray thrower 11 by injecting pipeline (5,5 ').
Preferably, described injection pipeline (5,5 ') is provided with injection pipeline isolating valve (7,7 '), in order to control described injection
The break-make of 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, at least two water injecting tank
Inject pipeline by a road respectively to connect 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
Time, the 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 is at containment 1
Outer surface heat absorption flashes to gas, flows into air through steam drain 3, takes 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, utilizes high-pressure injection
Water is spread across containment outer surface containment is cooled down, it is ensured that containment not superpressure, maintains the integrity of containment, have
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
Being 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, and 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 ')
Opening with injecting pipeline isolating valve (7,7 '), in high pressure water injection case (4,4 '), water is under the effect of gases at high pressure, passes through ascending pipe
Line (5,5 ') entrance spray thrower 11, and the outer surface of containment 1 it is spread across through shower nozzle 12, water is under gravity along peace
Full shell 1 flow downwards, in flow process, continuous endothermic transition is steam, departs from containment surface subsequently and flows 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, moisturizing interface (10,10 ') can be passed through and connect other available water
Source, profit pumps up and supplies water to spray thrower, maintains the longtime running of containment cooling system.Furthermore, it is possible to closedown ascending pipe
Line isolating valve (7,7 '), opens 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 to carry out containment
Cooling, 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 and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.For system disclosed in embodiment
For, owing to corresponding to the method disclosed in Example, so describe is fairly simple, relevant part sees method part explanation
?.
Those skilled in the art can use different methods to realize described function to each specifically should being used for, but
It is this realization 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 this practicality newly to utility model
The spirit and scope of type.So, if of the present utility model these amendment and modification belong to this utility model claim and
Within the scope of equivalent technologies, then this utility model 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 high pressure gas
Body 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, outside making
The moisturizing in described water injecting tank of water source, portion；Described outlet is corresponding with containment, the gases at high pressure in making described water injecting tank
It is spread across containment outer surface with water.
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 and described shower nozzle
Connection；Gases at high pressure and water in described water injecting tank flow into described spray thrower through described outlet, and are spread across by described shower nozzle
Containment outer surface.
3. the containment cooling system of nuclear power station as claimed in claim 2, it is characterised in that described outlet is by injecting pipeline
It is connected with described spray thrower.
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 note
Enter 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 be provided with outlet every
From 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 passes through moisturizing
Pipeline is connected with external water source.
7. the containment cooling system of nuclear power station as claimed in claim 6, it is characterised in that described moisturizing pipeline is only provided with
Return valve.
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 be to
Few two.
9. the containment cooling system of nuclear power station as claimed in claim 1, it is characterised in that the shielding Factory Building at containment place
Top be provided with steam drain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406534.9U CN205881479U (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 |
|---|---|---|---|
| CN201620406534.9U CN205881479U (en) | 2016-05-06 | 2016-05-06 | Containment cooling system of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205881479U true CN205881479U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620406534.9U Active CN205881479U (en) | 2016-05-06 | 2016-05-06 | Containment cooling system of nuclear power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825899A (en) * | 2016-05-06 | 2016-08-03 | 上海核工程研究设计院 | Containment cooling system of nuclear power station |
-
2016
- 2016-05-06 CN CN201620406534.9U patent/CN205881479U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825899A (en) * | 2016-05-06 | 2016-08-03 | 上海核工程研究设计院 | Containment cooling system of nuclear power station |
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| 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 |
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| CP01 | Change in the name or title of a patent holder |