CN103928062A - Self-pressurized reactor core water supply system - Google Patents
Self-pressurized reactor core water supply system Download PDFInfo
- Publication number
- CN103928062A CN103928062A CN201310011904.XA CN201310011904A CN103928062A CN 103928062 A CN103928062 A CN 103928062A CN 201310011904 A CN201310011904 A CN 201310011904A CN 103928062 A CN103928062 A CN 103928062A
- Authority
- CN
- China
- Prior art keywords
- pressurising
- water
- water supply
- supply tank
- tank
- 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.)
- Granted
Links
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 invention belongs to the technical field of nuclear power plant reactor safety system design, and particularly relates to a small modular reactor passive self-pressurized reactor core water supply system. According to the small modular reactor passive self-pressurized reactor core water supply system, a refueling water tank is communicated with containment atmosphere, the headspace of a reactor pressure vessel is connected with a sprayer through a pressure reducing/pressurizing pipeline, the pressure reducing/pressurizing pipeline is provided with an electromagnetic valve, the sprayer is positioned in water on the lower portion of a self-pressurized water supply tank, the upper portion of the self-pressurized water supply tank is filled with nitrogen gas, the self-pressurized water supply tank is provided with a safety valve and is positioned in the refueling water tank, the refueling water tank is filled with water, the bottom of the self-pressurized water supply tank is connected with the lower portion of the reactor pressure vessel through a shared safe injection pipeline, the section of the pipeline is provided with a water supply tank check valve, the bottom of the refueling water tank is connected with the lower portion of the reactor pressure vessel through a shared safe injection pipeline, and the section of the pipeline is provided with a refueling water tank check valve. According to the present invention, with the simple principle, the small equipment and the low pressure bearing requirements, the small break loss of the coolant accident can be effectively relieved.
Description
Technical field
The invention belongs to the security system design field of nuclear power plant reactor, be specifically related to the non-actively from pressurising reactor core water charging system of a kind of small modular reactor.
Background technology
The engineered safety system of presurized water reactor, from two generation power station active system turn to gradually the passive system in three generations power station.Active security system is active system, and its operation needs power supply and pump that power is provided; The operation of passive safety system relies on the measures such as Natural Circulation or segregation drive, does not need external impetus.
Typical passive safety system, such as AP1000 nuclear power plant, comprises Heat Discharging System of Chinese, non-active safety injection system, Passive containment cooling system.Wherein non-active safety injection system is made up of high-pressure safety injection, middle pressure peace note and low pressure peace note.High-pressure safety injection is two high pressure water supply tanks that are communicated with coolant circuit, and the accident initial stage is injected reactor core by gravity by chilled water; Middle pressure peace note is the peace note case of two nitrogen preacceleration inflations, when coolant pressure is during lower than 5MPa, by nitrogen expansion pressure, chilled water is injected to reactor core; Low pressure peace note refers to be down to while approaching containment internal pressure when coolant pressure, and the chilled water in material-changing water tank injects reactor core by gravity, realizes cooling for a long time.The reactor core safety injection system of AP1000 needs Automatic Depressurization System to coordinate, and realizes default ground reactor core buck functionality rapidly, thereby before the chilled water of high-pressure safety injection and middle pressure peace note exhausts, low pressure peace note can start in time, ensures the long-lasting of Core cooling.
Small modular reactor (SMR) by steam generator, voltage stabilizer, even the equipment such as control rod drive mechanisms (CRD) is placed in pressure vessel, forms integrated reactor body construction.SMR, in security feature, has removed coolant system pipeline on the one hand, has eliminated the large-break LOCA causing due to large pipeline double; In pressure vessel, water loading amount is relatively many on the other hand, even if therefore there is cut accident, also can ensure in early stage core deluge.So the engineered safety system of small modular reactor and large-scale heap have certain difference.
The early stage IRIS reactor proposing of Westinghouse Electric, the measure of alleviating small break LOCA is as follows: the steam that accident utilizes non-active urgent heat-extraction system (EHRS) that reactor core is produced is in early days cooled to water, in reducing primary side pressure rapidly, has reduced coolant loss; In the time that cooling medium loading amount drops to a certain degree, utilize Automatic depressurize system for pressure vessel step-down; In the time that coolant pressure and small-sized safety shell internal pressure approach balance, utilize constrain water tank in containment to inject and provide long-term cooling water source for reactor core by gravity.
The SMART reactor that Korea S KAERI proposes, its engineered safety system mixes the active system of employing and passive system.In the time there is small break LOCA, Heat Discharging System of Chinese (PRHRS) is taken away part reactor core heat by Natural Circulation, and active safety injection system draws the water in material-changing water tank, for reactor core provides long-term cooling water source.
The mPower reactor of Ba Wei company exploitation, the measure of alleviating small break LOCA is similar to IRIS, has both utilized non-active emergent condensing heat exchanger to discharge reactor core decay heat, utilizes again Automatic depressurize system for pressure vessel release.Water tank in last small-sized safety shell is injected and is provided long-term cooling water source for reactor core by gravity.
The W-SMR reactor of Westinghouse Electric's recent development, its measure of alleviating small break LOCA is as follows: accident is early stage, on the one hand take decay heat out of by the other row of secondary side steam, the Core makeup tank being communicated with cooling medium on the other hand (CMT) by gravity to reactor core moisturizing.In the time that coolant pressure drops to a certain degree, Automatic depressurize system starts, and is pressure vessel release.After final pressure container internal and external pressure balance, the water tank in small-sized safety shell is injected and is provided long-term cooling water source for reactor core by gravity.
Patent (patent No.: 201210050421.6, the non-passive safety injecting systems of nuclear reactor) provides a kind of reactor core water charging system taking high-voltage safety shell and low pressure peace note as principal character.Specifically, in the time there is minor break accident, accident early stage is by other means or only rely on water loading amount in pressure vessel to ensure core deluge; In the time that refrigerant level drops to a certain degree, open Automatic Depressurization System; When after pressure vessel internal and external pressure balance, pond is injected and is provided long-term cooling water source for reactor core by gravity in containment.
More than introduce reactor core moisturizing concept or the scheme that current small modular reactor adopts of having set forth roughly.Such scheme cuts both ways, specifically:
1.IRIS, mPower and the patent (patent No.: in the moisturizing scheme 201210050421.6) proposing, really injecting chilled water to reactor core is after coolant pressure and containment internal pressure reach balance.For ensureing Core cooling, must provide other cooling way before this, general using heat interchanger is taken away cooling medium heat.
2. patent (the patent No.: require containment to bear pressure to a certain degree in the moisturizing scheme 201210050421.6) proposing, this has proposed high requirement to containment design with material.
3.W-SMR is provided with Core makeup tank CMT, to realize the accident initial stage to reactor core moisturizing.Core makeup tank, owing to being communicated with cooling medium, is therefore to hold high-tension apparatus, and occupies space in containment.
Summary of the invention
The present invention is according to the security feature of small modular reactor, design a kind of from pressurising reactor core water charging system, this system can reduce the requirement to other Core cooling means, reduce the number that holds high-tension apparatus, effectively utilize space in containment, effectively alleviate small break LOCA with simple principle, small-sized equipment, lower bearing requirements.
For achieving the above object, the technical solution used in the present invention is:
A kind of from pressurising reactor core water charging system, this system comprise containment and be arranged at reactor pressure vessel wherein, solenoid valve, step-down/pressurising pipeline, safety valve, from pressurising water supply tank, sprinkler, material-changing water tank, material-changing water tank non-return valve, water supply tank non-return valve, share peace note pipeline; Described material-changing water tank is communicated with containment atmosphere;
Described reactor pressure vessel headroom is connected with sprinkler by step-down/pressurising pipeline, on step-down/pressurising pipeline, is provided with solenoid valve, and sprinkler is arranged in from pressurising water supply tank bottom water, is filled with nitrogen from pressurising water supply tank top; Be provided with safety valve from pressurising water supply tank; Be arranged in material-changing water tank from pressurising water supply tank, in material-changing water tank, be filled with water; Bottom from pressurising water supply tank is connected with reactor pressure vessel bottom by sharing peace note pipeline, is provided with water supply tank non-return valve on this section of pipeline; The bottom of material-changing water tank is connected with reactor pressure vessel bottom by sharing peace note pipeline, is provided with material-changing water tank non-return valve on this section of pipeline.
Described is a closed container in normal temperature and pressure from pressurising water supply tank, and the inside major part is filled chilled water, and upper space is filled with nitrogen.
Described solenoid valve is opened when after accident occurs, in reactor pressure vessel, coolant pressure reaches setting valve, is communicated with by reactor pressure vessel with from pressurising water supply tank by step-down/pressurising pipeline.
Described in the time that pressurising water supply tank starts pressurising and inject to reactor pressure vessel, utilize water in material-changing water tank to being undertaken cooling from pressurising water supply tank by wall.
Described material-changing water tank is communicated with containment atmosphere, and in the time that in reactor pressure vessel internal pressure and containment, atmospheric pressure approaches balance, the water conservancy in material-changing water tank uses gravity pressure reduction to reactor pressure vessel water filling.
Described from pressurising water supply tank and the shared peace note pipeline of material-changing water tank.
The obtained beneficial effect of the present invention is:
One of the present invention is from pressurising reactor core water charging system, can effectively alleviate the small break LOCA of small modular reactor, high-pressure safety injection and the middle pressure safety injection system in large-scale non-active power station are removed, in accident mitigation process, do not need other Decay heat removal system means to get involved, system is simple, equipment volume is little, pressure-bearing is low, containment surge pressure is low, occupies containment space few, and there is no additionally to increase the probability that other accident occurs;
Of the present inventionly a kind ofly mainly comprise a water supply tank from pressurising from pressurising reactor core water charging system, after cut accident occurs, be communicated with reactor pressure vessel from pressurising water supply tank, in reactor pressure vessel step-down, from the pressurising of pressurising water supply tank, after both balances, utilize gravity pressure reduction to inject chilled water to reactor core from pressurising water supply tank.This reactor core water charging system has following characteristics:
(1) when system is idle, from pressurising water supply tank and pipeline thereof in normal temperature and pressure state;
(2) reactor pressure vessel and the pressure equilibrium between pressurising water supply tank are set up after accident occurs;
(3), when solenoid valve is to reactor pressure vessel release, give from the pressurising of pressurising water supply tank;
(4) from pressurising water supply tank pressure-bearing low (being less than 4MPa), volume little (being less than 10m3);
(5) be placed in material-changing water tank from pressurising water supply tank, share peace note pipeline, both reduced number of lines, also reduced the probability of peace note pipeline generation cut;
(6) do not need the high-pressure safety injection of large-scale non-active nuclear power station and the middle pressure peace note of preacceleration inflation;
(7) surge pressure that containment bears belongs to low pressure (being less than 0.5MPa).
Brief description of the drawings
Fig. 1 is that one of the present invention is from pressurising reactor core water charging system structural drawing;
In figure: 1, reactor pressure vessel; 2, solenoid valve; 3, step-down/pressurising pipeline; 4, safety valve; 5, from pressurising water supply tank; 6, sprinkler; 7, material-changing water tank; 8, material-changing water tank non-return valve; 9, water supply tank non-return valve; 10, share peace note pipeline; 11, containment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, of the present invention a kind of from pressurising reactor core water charging system comprise containment 11 and be arranged at reactor pressure vessel 1 wherein, solenoid valve 2, step-down/pressurising pipeline 3, safety valve 4, from pressurising water supply tank 5, sprinkler 6, material-changing water tank 7, material-changing water tank non-return valve 8, water supply tank non-return valve 9, share peace note pipeline 10; Described material-changing water tank 7 is communicated with containment 11 atmosphere;
Described reactor pressure vessel 1 headroom is connected with sprinkler 6 by step-down/pressurising pipeline 3, on step-down/pressurising pipeline 3, is provided with solenoid valve 2, and sprinkler 6 is arranged in from pressurising water supply tank 5 bottom water, is filled with nitrogen from pressurising water supply tank 5 tops; Be provided with safety valve 4 from pressurising water supply tank 5; Be arranged in material-changing water tank 7 from pressurising water supply tank 5, in material-changing water tank 7, be filled with water; Bottom from pressurising water supply tank 5 is connected with reactor pressure vessel 1 bottom by sharing peace note pipeline 10, is provided with water supply tank non-return valve 9 on this section of pipeline; The bottom of material-changing water tank 7 is connected with reactor pressure vessel 1 bottom by sharing peace note pipeline 10, is provided with material-changing water tank non-return valve 8 on this section of pipeline;
Described is the closed containers in normal temperature and pressure from pressurising water supply tank 5, and the inside major part is filled chilled water, and upper space is filled with nitrogen.Inflated with nitrogen is the pressure surge causing in order to alleviate the shrinkage of chilled water heat expansion, ensures cooling water quality simultaneously.The object that safety valve 4 is set from pressurising water supply tank 5 is to avoid hypertonia in the process of boosting to cause the destruction to casing;
Described solenoid valve 2 is opened when after accident occurs, the interior coolant pressure of reactor pressure vessel 1 reaches setting valve, is communicated with by reactor pressure vessel 1 with from pressurising water supply tank 5 by step-down/pressurising pipeline 3.The interior cooling medium of reactor pressure vessel 1 flows out so on the one hand, realizes step-down; Enter from pressurising water supply tank 5 from the superheated vapor of reactor pressure vessel 1 on the other hand, casing is boosted;
The sprinkler 6 of described step-down/pressurising pipeline 3 ends stretches into from the hydrospace of pressurising water supply tank 5, has cushioned like this process of boosting from pressurising water supply tank 5, and buck/boost process is comparatively gently carried out;
It is described in pressurising water supply tank 5 is placed in material-changing water tank 7, save on the one hand the interior space of containment 11, on the other hand in the time starting pressurising from pressurising water supply tank 5 and inject to reactor pressure vessel 1, can utilize water in material-changing water tank 7 to being undertaken cooling from pressurising water supply tank 5 by wall;
Described material-changing water tank 7 is containers that are communicated with containment 11 atmosphere, in the time that reactor pressure vessel 1 internal pressure and the interior atmospheric pressure of containment 11 approach balance, the water conservancy in material-changing water tank 7 with gravity pressure reduction to reactor pressure vessel 1 water filling;
Describedly share one from pressurising water supply tank 5 and material-changing water tank 7 and share peace note pipeline 10, both reduced number of lines, also reduced the probability of peace note pipeline generation cut;
When after reactor generation small break LOCA, the cooling medium in reactor pressure vessel 1 spurts to containment 11 inside by cut, and the liquid level in reactor pressure vessel 1 reduces, pressure decreased, and the pressure in containment 11 raises;
When the Pressure Drop of reactor pressure vessel 1 is to a certain extent time (as 4MPa), trigger the start signal of solenoid valve 2; The unlatching of solenoid valve 2 does not rely on external power source; The cooling medium of steam state (may have operative liquid) is sprayed in the hydrospace of pressurising water supply tank 5 by sprinkler 6 by step-down/pressurising pipeline 3; The further step-down of reactor pressure vessel 1; In pressurising water supply tank 5 due to high temperature carbonated drink inject boost fast.
By reactor pressure vessel 1 internal pressure with in the time that pressurising water supply tank 5 internal pressures reach in a basic balance (as 3MPa), chilled water in pressurising water supply tank 5 utilizes gravity pressure reduction to be injected in reactor pressure vessel 1 by sharing peace note pipeline 10, for reactor core provides the chilled water of certain hour (such as 2000 seconds), ensure core deluge.
Along with cut spurts and from the proceeding of pressurising water supply tank 5 water fillings, the interior atmospheric pressure of containment 11 raises gradually.Before exhausting from pressurising water supply tank 5 chilled waters, reactor pressure vessel 1 and containment 11 are realized pressure equilibrium (such as 0.4MPa).Now, the chilled water in material-changing water tank 7 utilizes gravity pressure reduction to note pipeline 10 by peace and is injected in reactor pressure vessel 1, for reactor core provides the chilled water of long period.
Long-term cooling dependence containment 11 external refrigeration facilities and the condensation water collection facility of reactor core are realized.This part non-content of the present invention, but the general facility of reactor engineered safety system.
To sum up, in the time that cut occurs, early stage, waterflood system was failure to actuate; In the time that coolant pressure drops to a certain degree, make reactor pressure vessel 1 and be communicated with from pressurising water supply tank 5, give reactor core moisturizing from pressurising water supply tank 5; Till the moisturizing process of pressurising water supply tank 5 continues up to material-changing water tank 7 and starts water filling.
Claims (6)
1. from a pressurising reactor core water charging system, it is characterized in that: this system comprise containment (11) and be arranged at reactor pressure vessel (1) wherein, solenoid valve (2), step-down/pressurising pipeline (3), safety valve (4), from pressurising water supply tank (5), sprinkler (6), material-changing water tank (7), material-changing water tank non-return valve (8), water supply tank non-return valve (9), share peace note pipeline (10); Described material-changing water tank (7) is communicated with containment (11) atmosphere;
Described reactor pressure vessel (1) headroom is connected with sprinkler (6) by step-down/pressurising pipeline (3), on step-down/pressurising pipeline (3), be provided with solenoid valve (2), sprinkler (6) is arranged in from pressurising water supply tank (5) bottom water, is filled with nitrogen from pressurising water supply tank (5) top; Be provided with safety valve (4) from pressurising water supply tank (5); Be arranged in material-changing water tank (7) from pressurising water supply tank (5), material-changing water tank is filled with water in (7); Bottom from pressurising water supply tank (5) is connected with reactor pressure vessel (1) bottom by sharing peace note pipeline (10), is provided with water supply tank non-return valve (9) on this section of pipeline; The bottom of material-changing water tank (7) is connected with reactor pressure vessel (1) bottom by sharing peace note pipeline (10), is provided with material-changing water tank non-return valve (8) on this section of pipeline.
2. one according to claim 1, from pressurising reactor core water charging system, is characterized in that: described is a closed container in normal temperature and pressure from pressurising water supply tank (5), and the inside major part is filled chilled water, and upper space is filled with nitrogen.
3. one according to claim 1 is from pressurising reactor core water charging system, it is characterized in that: described solenoid valve (2) is opened when after accident occurs, in reactor pressure vessel (1), coolant pressure reaches setting valve, is communicated with by reactor pressure vessel (1) with from pressurising water supply tank (5) by step-down/pressurising pipeline (3).
4. one according to claim 1 is from pressurising reactor core water charging system, it is characterized in that: described in the time that pressurising water supply tank (5) starts pressurising and injects to reactor pressure vessel (1), utilize the interior water of material-changing water tank (7) to being undertaken cooling from pressurising water supply tank (5) by wall.
5. one according to claim 1 is from pressurising reactor core water charging system, it is characterized in that: described material-changing water tank (7) is communicated with containment (11) atmosphere, in the time that in reactor pressure vessel (1) internal pressure and containment (11), atmospheric pressure approaches balance, the water conservancy in material-changing water tank (7) uses gravity pressure reduction to reactor pressure vessel (1) water filling.
6. one according to claim 1, from pressurising reactor core water charging system, is characterized in that: described from pressurising water supply tank (5) and the shared peace note pipeline of material-changing water tank (7) (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310011904.XA CN103928062B (en) | 2013-01-14 | 2013-01-14 | One kind is from pressurising reactor core water charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310011904.XA CN103928062B (en) | 2013-01-14 | 2013-01-14 | One kind is from pressurising reactor core water charging system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103928062A true CN103928062A (en) | 2014-07-16 |
| CN103928062B CN103928062B (en) | 2017-03-01 |
Family
ID=51146256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310011904.XA Active CN103928062B (en) | 2013-01-14 | 2013-01-14 | One kind is from pressurising reactor core water charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103928062B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979024A (en) * | 2015-05-20 | 2015-10-14 | 中国核动力研究设计院 | Passive pressure-relief, water-injection and cooling system for floating nuclear power plant and operation method therefor |
| CN105070326A (en) * | 2015-08-18 | 2015-11-18 | 上海核工程研究设计院 | Primary loop feeding and discharging system for nuclear power plant |
| CN105070325A (en) * | 2015-08-14 | 2015-11-18 | 上海核工程研究设计院 | Nuclear power station safety injection system adopting steam-jet pump |
| CN108962407A (en) * | 2018-06-13 | 2018-12-07 | 上海核工程研究设计院有限公司 | A kind of advanced Core makeup tank structure |
| CN111916234A (en) * | 2020-08-13 | 2020-11-10 | 中国核动力研究设计院 | Passive and active combined nuclear power plant safety injection system and using method thereof |
| CN113124387A (en) * | 2021-03-26 | 2021-07-16 | 华能山东石岛湾核电有限公司 | Protection device and protection method for spiral coil type steam generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0405720A2 (en) * | 1989-06-26 | 1991-01-02 | Westinghouse Electric Corporation | Passive safety injection system using borated water |
| CN1080773A (en) * | 1992-06-24 | 1994-01-12 | 西屋电气公司 | Staged depressurization system |
| JPH06130174A (en) * | 1992-10-21 | 1994-05-13 | Ishikawajima Harima Heavy Ind Co Ltd | Emergency reactor core cooling water injecting system for light water reactor |
| CN101127251A (en) * | 2007-09-27 | 2008-02-20 | 华北电力大学 | Temperature induction type safe syringe system of nuclear power plant |
| CN202549319U (en) * | 2012-02-29 | 2012-11-21 | 上海核工程研究设计院 | Diverse safety system specially arranged for nuclear reactor |
| US20120321030A1 (en) * | 2011-06-15 | 2012-12-20 | Malloy John D | Integrated emergency core cooling system condenser for pressurized water reactor |
-
2013
- 2013-01-14 CN CN201310011904.XA patent/CN103928062B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0405720A2 (en) * | 1989-06-26 | 1991-01-02 | Westinghouse Electric Corporation | Passive safety injection system using borated water |
| CN1080773A (en) * | 1992-06-24 | 1994-01-12 | 西屋电气公司 | Staged depressurization system |
| JPH06130174A (en) * | 1992-10-21 | 1994-05-13 | Ishikawajima Harima Heavy Ind Co Ltd | Emergency reactor core cooling water injecting system for light water reactor |
| CN101127251A (en) * | 2007-09-27 | 2008-02-20 | 华北电力大学 | Temperature induction type safe syringe system of nuclear power plant |
| US20120321030A1 (en) * | 2011-06-15 | 2012-12-20 | Malloy John D | Integrated emergency core cooling system condenser for pressurized water reactor |
| CN202549319U (en) * | 2012-02-29 | 2012-11-21 | 上海核工程研究设计院 | Diverse safety system specially arranged for nuclear reactor |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979024A (en) * | 2015-05-20 | 2015-10-14 | 中国核动力研究设计院 | Passive pressure-relief, water-injection and cooling system for floating nuclear power plant and operation method therefor |
| CN105070325A (en) * | 2015-08-14 | 2015-11-18 | 上海核工程研究设计院 | Nuclear power station safety injection system adopting steam-jet pump |
| CN105070326A (en) * | 2015-08-18 | 2015-11-18 | 上海核工程研究设计院 | Primary loop feeding and discharging system for nuclear power plant |
| CN108962407A (en) * | 2018-06-13 | 2018-12-07 | 上海核工程研究设计院有限公司 | A kind of advanced Core makeup tank structure |
| CN108962407B (en) * | 2018-06-13 | 2024-02-02 | 上海核工程研究设计院股份有限公司 | Advanced reactor core water supplementing tank structure |
| CN111916234A (en) * | 2020-08-13 | 2020-11-10 | 中国核动力研究设计院 | Passive and active combined nuclear power plant safety injection system and using method thereof |
| CN113124387A (en) * | 2021-03-26 | 2021-07-16 | 华能山东石岛湾核电有限公司 | Protection device and protection method for spiral coil type steam generator |
| CN113124387B (en) * | 2021-03-26 | 2022-10-04 | 华能山东石岛湾核电有限公司 | Protection device and protection method for spiral coil type steam generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103928062B (en) | 2017-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103928062A (en) | Self-pressurized reactor core water supply system | |
| CN102169733B (en) | Passive and active combined special safety system for nuclear power plant | |
| CN102903403B (en) | A kind of active and non-active reactor core water filling heat derivation device combined | |
| CN103295656B (en) | Diversified engineered safety system for nuclear reactor | |
| CN101847451B (en) | Safety injection system | |
| CN109903863B (en) | Safe injection system and nuclear power system | |
| CN202855316U (en) | Containment cooling system for PWR (pressurized water reactor) nuclear power plant | |
| CN105719706A (en) | Small reactor passive core cooling system | |
| CN202102728U (en) | Safety system used for guaranteeing safety of nuclear power plant | |
| CN102737739A (en) | Passive high pressure safety injection tank system (hpsit) for responding to station blackout (sbo) and loss-of-coolant accidents (loca) | |
| CN204496934U (en) | The non-active core cooling system of Small reactor | |
| GB2523949A (en) | High-pressure safe injection system for nuclear power stations | |
| CN201788707U (en) | Safety system for ensuring safety of nuclear power station | |
| CN110097982B (en) | Safe injection and waste heat discharge system of nuclear power plant | |
| CN103578581A (en) | Safety injection tank system pressurized with separated nitrogen gas tank | |
| US20140016733A1 (en) | Passive safety injection system using safety injection tank | |
| CN105489257A (en) | Nitrogen pressure stabilization and high-pressure safety injection system for nuclear power plant | |
| KR101463441B1 (en) | High concentration boron injection system and safety injection system having the same | |
| GB2539988A (en) | Safety injection system | |
| CN104766637A (en) | Safety injection integrated system | |
| CN103295654B (en) | The passive safety injection system of nuclear reactor | |
| Chun et al. | Safety evaluation of small-break LOCA with various locations and sizes for SMART adopting fully passive safety system using MARS code | |
| CN207529679U (en) | A kind of safety injection system and nuclear power system | |
| CN106409355A (en) | Passive automatic control system for starting containment cooling system | |
| CN102881341B (en) | Volume expansion component and method for increasing gravity safety injection pressure head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| 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 & 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 | ||
| 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 Co.,Ltd. |