CN104361912B - It is applicable to caisson type marine nuclear power station water inlet system in emergency circumstances - Google Patents
It is applicable to caisson type marine nuclear power station water inlet system in emergency circumstances Download PDFInfo
- Publication number
- CN104361912B CN104361912B CN201410612844.1A CN201410612844A CN104361912B CN 104361912 B CN104361912 B CN 104361912B CN 201410612844 A CN201410612844 A CN 201410612844A CN 104361912 B CN104361912 B CN 104361912B
- Authority
- CN
- China
- Prior art keywords
- temperature
- water intaking
- caisson
- magnetic valve
- intaking valve
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000013535 sea water Substances 0.000 claims abstract description 12
- 230000008520 organization Effects 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 239000002826 coolant Substances 0.000 claims description 22
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 230000004044 response Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 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
- G21C15/182—Emergency cooling arrangements; Removing shut-down heat comprising powered means, e.g. pumps
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
- G21C17/112—Measuring temperature
-
- 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 discloses a kind of water inlet system being applicable to caisson type marine nuclear power station in emergency circumstances.It includes controlling organization and executing agency；Controlling organization includes temperature-sensing element, control circuit and the magnetic valve I being sequentially connected electrically；Temperature-sensing element temperature in the caisson monitoring nuclear power station, when temperature is higher than setting value, controls control circuit connection, and then control magnetic valve I is opened；Executing agency includes that water intaking valve drives pipeline and at least one connected water intaking valve, and water intaking valve is located on caisson；Magnetic valve I drives pipeline to be connected with water intaking valve and controls its connection.The invention have the advantages that (1) uses temperature-sensing element, it is possible to fast direct ground connection triggers water inrush system, it is to avoid system low-response.(2) power supply has seawater battery, after primary source failure, it is ensured that the reliability of system.(3) water intaking valve passes through air pressure or hydraulic-driven, evades the problem that electric drive may lose efficacy further, further increases the stability that system is run.
Description
Technical field
The present invention relates to a kind of water inlet system being applicable to caisson type marine nuclear power station in emergency circumstances, belong to marine nuclear power
Security technology area.
Background technology
Nuclear power station can not cool down in time and often produce catastrophic effect, below as a example by Fukushima nuclear power station leakage accident,
Understand the process that its accident occurs, in order to evade the reason that nuclear accident occurs pointedly, it is provided that nuclear safety.
Owing to earthquake intensity is beyond the antidetonation limit of Fukushima nuclear power station.After earthquake, in reactor, control rod inserts, and automatically stops
Heap.But after shutdown, after-heat needs to continue transfer release, but externally fed electrical network cannot be powered because of earthquake damage, this
Time emergency power diesel-driven generator start working, but suffer that tsunami destroys subsequently, it has to enable the second set standby should
Anxious battery power, continues pump water cooling, but battery can only maintain eight hours.Electric power can not stably be supplied, and water pump can not
Very well work, is evaporated and the water discharged is far more than the water in piii reactor, and water is fewer and feweri, some fuel
Rod begins to exposed on water level, and temperature rises rapidly, and temperature is more than 1200 degrees Celsius, so under high-temperature, and combustion
Zirconium and the water generation chemical reaction of material involucrum, produces zirconium oxide and hydrogen, and hydrogen runs up to finite concentration, and in air
Oxygen reaction, therefore there occurs the blast that outer layer is built.Damage, finally for preventing the temperature of containment from continuing to raise
Have to inject seawater cooling.
The process occurred from Fukushima nuclear power plant accident is it can be seen that the deficiency of its emergent water inlet system: emergency power diesel oil is sent out
Motor is easy to because earthquake and other reasons are damaged；Reserve battery is held time short；Seawater cools down not in time, regulates
Journey is sluggish.
Summary of the invention
It is an object of the invention to provide a kind of water inlet system being applicable to caisson type marine nuclear power station in emergency circumstances, this enters
Water system includes controlling organization and executing agency, and in controlling organization, temperature-sensing element can be under nuclear accident operating mode around perception
Temperature, and quickly, directly trigger water intaking valve water inrush in executing agency；And power supply outfit accessory power supply energy is reliable,
Lasting offer power, makes water inlet system stable operation, so that nuclear power station temperature reduces, to ensure that nuclear power station is even
The safety of surrounding environment.
What the present invention provided is applicable to caisson type marine nuclear power station water inlet system in emergency circumstances, and it includes controlling organization
And executing agency；
Described controlling organization includes temperature-sensing element, control circuit and the magnetic valve I being sequentially connected electrically；Described temperature-sensing element
Temperature in the caisson monitoring caisson type marine nuclear power station, when the temperature in described caisson is higher than setting value, institute
State temperature-sensing element and control the connection of described control circuit, and then control the unlatching of described magnetic valve I；
Described executing agency includes that water intaking valve drives pipeline and at least one connected water intaking valve, described water intaking valve
It is located on described caisson；
Described magnetic valve I drives pipeline to be connected with described water intaking valve, drives the company of pipeline for controlling described water intaking valve
Logical.
Above-mentioned water inlet system, the driving source of described water intaking valve uses pneumatic actuation source or hydraulic drive source.
Above-mentioned water inlet system, described magnetic valve I is powered by battery, emergency generator or seawater battery；Described storage
Battery and/or described emergency generator are as main power source, and described seawater battery is as accessory power supply, and described seawater battery exists
Seawater enters after destroying main power source and provides electric power to greatest extent, to extend the water inlet system operation time.
Above-mentioned water inlet system, described water inlet system also includes being connected with described temperature-sensing element and described control circuit
Magnetic valve II；The material selection fusing point of described temperature-sensing element is higher than the releasable maximum temperature of nuclear power station, prevents temperature-sensitive unit
Part fusing was lost efficacy, and material can be copper alloy, titanium alloy or nickel alloy；
Described temperature-sensing element is the key element of described control circuit, and a described temperature-sensing element substantially temperature is opened
Close, its increase with external temperature and the heat that produces be delivered on its internal sheet metal arranged, reach operating temperature and set
Timing action rapidly, is used by mechanism's effect and is a little opened or closed, and then realize described control circuit on off operating mode
Control；
Described magnetic valve II is connected with cooling agent injection pump, and described control circuit controls the unlatching of described magnetic valve II,
And then control the unlatching of described cooling agent injection pump；
Described cooling agent injection pump is connected with described cooling agent storage tank, and described cooling agent storage tank is used for providing cooling agent boron
Acid, boric acid is sucked in described caisson by described cooling agent injection pump, is used for absorbing residue neutron and a part of iodine.
Compared with prior art, the invention have the advantages that
(1) present invention uses temperature-sensing element, by the temperature change under direct feeling nuclear accident operating mode, it is possible to quickly
Directly trigger water inrush system, it is to avoid the drawback of system low-response.
(2) in the present invention, power supply has seawater battery, after making main power source lose efficacy under natural calamity or major accident, and energy
Enough provided by seawater battery, it is ensured that the reliability of system.
(3) in the present invention, water intaking valve, by air pressure or hydraulic-driven, evades the problem that electric drive may lose efficacy further,
Further increase the stability that system is run.
Accompanying drawing explanation
Fig. 1 is the structural representation being applicable to caisson type marine nuclear power station water inlet system in emergency circumstances in the present invention.
Fig. 2 is the structural representation being applicable to caisson type marine nuclear power station water inlet system in emergency circumstances in the present invention.
Figure marks as follows:
1 control circuit, 2 power supplys, 3 temperature-sensing elements, 4 magnetic valves I, 5 water intaking valves drive pipeline, and 6 drive source,
7 water intaking valves, 8 magnetic valves II, 9 cooling agent injection pumps, 10 cooling agent storage tanks.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings, but the invention is not limited in following example.
Show as it is shown in figure 1, be applicable to the structure of caisson type marine nuclear power station water inlet system in emergency circumstances for the present invention
Being intended to, it includes controlling organization and executing agency；Control circuit 1, temperature-sensing element 3 (using memorial alloy to make) and
Magnetic valve I 4 is sequentially connected electrically formation controlling organization, and magnetic valve I 4 is powered by power supply 2.Temperature-sensing element 3 is to control
The key element of circuit 1, a temperature-sensing element 3 substantially temperature switch, it increases with external temperature and produces
Heat is delivered on its internal sheet metal arranged, and reaches rapid action when operating temperature sets, is made by mechanism's effect
Go out a little to be opened or closed, and then realize the control to control circuit 1 on off operating mode；Temperature-sensing element 3 is used for monitoring sea
The temperature of caisson in nuclear power station, when monitoring temperature higher than setting value, temperature-sensing element 3 controls control circuit 1 and connects,
And then control magnetic valve I 4 unlatching.Water intaking valve 7 drives pipeline 5 to connect driving source 6 composition by water intaking valve and holds
Row mechanism, wherein water intaking valve 7 is located on caisson, and magnetic valve I 4 drives pipeline 5 to be connected with water intaking valve, works as electromagnetism
When valve I 4 is opened, even if water intaking valve drives pipeline 5 to connect, now, under the effect driving source 6, water intaking valve 7
I.e. being opened, seawater just can be injected in caisson from water intaking valve 7 and cool.
As in figure 2 it is shown, in order to improve the cooling-down effect to nuclear power station caisson, reduce contingent core thing to greatest extent
Therefore, water inlet system of the present invention also sets up the magnetic valve II 8 being connected with temperature-sensing element 3 and control circuit 1, this magnetic valve
II 8 are connected with cooling agent injection pump 9, and control circuit 1 is carried out according to the monitored environment temperature of temperature-sensing element 3
Connect, and then control circuit 1 control the unlatching of magnetic valve II 8, control the unlatching of cooling agent injection pump 9 further,
Now the cooling agent in coupled cooling agent storage tank 10 can be injected in caisson by cooling agent injection pump 9.
The course of work using water inlet system of the present invention is as follows:
Water inlet system as shown in Figure 1, in case of emergency, when being increased to setting value along with heavy the temperature inside the box, temperature-sensitive
Element 3 action so that control circuit 1 connects (power supply 2 provides electric energy), and now magnetic valve I 4 is opened, even if entering
Water valve drives pipeline 5 to connect；Simultaneously drive source 6 (air pressure or hydraulic drive source) to open, owing to driving source 6 all the time
Maintaining working pressure conditions, under the effect in driving source 6, water intaking valve 7 is opened；Caisson type marine nuclear power station is provided with
Passage is connected with external environment condition, and therefore caisson is internal is normal pressure, and after water intaking valve 7 is opened, seawater is at pressure itself
Under entered in caisson by water intaking valve 7 nuclear island cooled down, reach to alleviate the purpose of reactor accident, to avoid more
Big loss.If water inlet system of the present invention arranges cooling agent injection part, as in figure 2 it is shown, open at magnetic valve I 4
While, magnetic valve II 8 is opened, and cooling agent is sucked in caisson by cooling agent injection pump 9 by cooling agent storage tank 10,
It is used for absorbing remaining neutron and a part of iodine, lowers contingent nuclear accident to greatest extent.
Claims (4)
1. the water inlet system being applicable to caisson type marine nuclear power station in emergency circumstances, it is characterised in that: it includes
Controlling organization and executing agency；
Described controlling organization includes temperature-sensing element, control circuit and the magnetic valve I being sequentially connected electrically；Described temperature-sensing element
Temperature in the caisson monitoring caisson type marine nuclear power station, when the temperature in described caisson is higher than setting value, institute
State temperature-sensing element and control the connection of described control circuit, and then control the unlatching of described magnetic valve I；
Described executing agency includes that water intaking valve drives pipeline and at least one connected water intaking valve, described water intaking valve
It is located on described caisson；
Described magnetic valve I drives pipeline to be connected with described water intaking valve, drives the company of pipeline for controlling described water intaking valve
Logical.
Water inlet system the most according to claim 1, it is characterised in that: the driving source of described water intaking valve uses gas
Pressure driving source or hydraulic drive source.
Water inlet system the most according to claim 1 and 2, it is characterised in that: described magnetic valve I by battery,
Emergency generator or seawater battery are powered.
Water inlet system the most according to claim 1 and 2, it is characterised in that: described water inlet system also include with
The magnetic valve II that described temperature-sensing element is connected with described control circuit；
Described magnetic valve II is connected with cooling agent injection pump, and described control circuit controls the unlatching of described magnetic valve II,
And then control the unlatching of described cooling agent injection pump；
Described cooling agent injection pump is connected with cooling agent storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410612844.1A CN104361912B (en) | 2014-11-04 | 2014-11-04 | It is applicable to caisson type marine nuclear power station water inlet system in emergency circumstances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410612844.1A CN104361912B (en) | 2014-11-04 | 2014-11-04 | It is applicable to caisson type marine nuclear power station water inlet system in emergency circumstances |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104361912A CN104361912A (en) | 2015-02-18 |
| CN104361912B true CN104361912B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410612844.1A Active CN104361912B (en) | 2014-11-04 | 2014-11-04 | It is applicable to caisson type marine nuclear power station water inlet system in emergency circumstances |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046374B (en) * | 2021-10-28 | 2024-02-13 | 苏州热工研究院有限公司 | Nuclear power unit power supply system based on electromagnetic valve and pneumatic electromagnetic valve |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| YU142276A (en) * | 1976-06-09 | 1984-06-30 | Zelimir Sladoljev | Floating nuclear electric plant |
| US4102752A (en) * | 1976-07-09 | 1978-07-25 | Rugh Ii John L | Municipal water supply system |
| US4302291A (en) * | 1979-05-03 | 1981-11-24 | Severs Stephen B | Underwater nuclear power plant structure |
| JPH0587962A (en) * | 1991-09-25 | 1993-04-09 | Mitsui Mining & Smelting Co Ltd | Off-shore nuclear power plant and construction, supporting and operation of power plant site and facility thereof |
| JPH06324190A (en) * | 1993-03-17 | 1994-11-25 | Hitachi Ltd | Nuclear power plant water intake facility |
| RU2188466C2 (en) * | 2000-01-11 | 2002-08-27 | Федеральное Государственное Унитарное Предприятие "Санкт-Петербургское Морское Бюро Машиностроения "Малахит" | Floating nuclear power plant |
| JP4324640B1 (en) * | 2009-01-27 | 2009-09-02 | 宏一郎 森 | Marine mobile nuclear power plant |
| CN201600931U (en) * | 2010-02-20 | 2010-10-06 | 华北电力大学 | Temperature Sensitive Safety Injection Device for Nuclear Power Plant |
| CN102693764A (en) * | 2011-03-21 | 2012-09-26 | 常州市福驰电动车辆科技有限公司 | Nuclear power station with reactor placed in pit |
| US8867691B1 (en) * | 2011-08-26 | 2014-10-21 | Warren N. Root | Seismic safe nuclear power plant |
| JP2013238539A (en) * | 2012-05-16 | 2013-11-28 | Mitsubishi Heavy Ind Ltd | Relief ship |
| KR20140012817A (en) * | 2012-07-23 | 2014-02-04 | 삼성중공업 주식회사 | Emergency cooling system for nuclear plant in ocean |
| CN103903659B (en) * | 2014-03-28 | 2016-08-03 | 哈尔滨工程大学 | Floating nuclear power plant Heat Discharging System of Chinese |
| CN203826014U (en) * | 2014-05-23 | 2014-09-10 | 中国核动力研究设计院 | Semi-submersible platform floating nuclear power station |
| CN203826013U (en) * | 2014-05-23 | 2014-09-10 | 中国核动力研究设计院 | Waste heat long-term passive exporting system for floating nuclear power station |
| CN204189460U (en) * | 2014-11-04 | 2015-03-04 | 中国海洋石油总公司 | A kind ofly be applicable to caisson type marine nuclear power station water inlet system in emergency circumstances |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |
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