CN108962407A - A kind of advanced Core makeup tank structure - Google Patents
A kind of advanced Core makeup tank structure Download PDFInfo
- Publication number
- CN108962407A CN108962407A CN201810609165.7A CN201810609165A CN108962407A CN 108962407 A CN108962407 A CN 108962407A CN 201810609165 A CN201810609165 A CN 201810609165A CN 108962407 A CN108962407 A CN 108962407A
- Authority
- CN
- China
- Prior art keywords
- horizontal baffle
- makeup tank
- core makeup
- discharge orifice
- water
- 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
- 230000003020 moisturizing effect Effects 0.000 claims abstract description 22
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 39
- 238000002347 injection Methods 0.000 abstract description 8
- 239000007924 injection Substances 0.000 abstract description 8
- 230000005574 cross-species transmission Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 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
-
- 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
It is an object of the invention to disclose a kind of advanced Core makeup tank structure, it includes moisturizing box body, the top of the moisturizing box body is provided with horizontal baffle, injection-tube in cabinet is connected in the middle part of the horizontal baffle, injection-tube lower part is provided with discharge orifice in the cabinet, and passive float-type discharge orifice controller for opening and closing is provided on the horizontal baffle；Compared with prior art, in the case where Core makeup tank is in water circular flow mode, the Core makeup tank water loading amount for Natural Circulation can be effectively reduced, effectively reduce volume expansion caused by whole system is mixed due to hot and cold water, further prevent voltage-stablizer spill-over, while boronation requirement when moisturizing requirement when this water loading amount is able to satisfy chemical volume control system failure and main steam line rupture；In the case where Core makeup tank is in draining operational mode, the Core makeup tank water loading amount for safety injection is not influenced, is achieved the object of the present invention.
Description
Technical field
The present invention relates to a kind of Core makeup tank structure, in particular to a kind of advanced reactor core suitable for passive nuclear plant
Moisturizing box structure.
Background technique
Core makeup tank is in a high position, and the low temperature boron water containing higher concentration, bottom and top are separately connected injection-tube
And balance pipe, major function are: moisturizing and boronation are carried out to reactor coolant loop, it is cooling to reactor under loss of-coolant accident (LOCA)
Agent system implements total pressure peace note.
Core makeup tank meeting automatic trigger in accident, under the conditions of certain Non-LOCA accidents, Core makeup tank investment fortune
It after row, is run with water-cycling mode, after cold water is mixed with the hot water of reactor coolant loop, whole system water volume occurs
Expansion, voltage-stablizer liquid level rising degree is larger, if operator may make voltage-stablizer that spill-over occur, cause steady without intervening
Depressor safety valve crosses water card and the negative consequences such as opens.Therefore, it be not avoided that the case where Core makeup tank triggers under certain accidents
Under, voltage-stablizer spill-over can be further prevented by suitably reducing Core makeup tank loading amount under this operational mode.
Under the conditions of loss of-coolant accident (LOCA), after Core makeup tank puts into operation, after first running a period of time with water-cycling mode, by
In the lasting loss of reactor coolant loop water loading amount, Core makeup tank is changed into draining operational mode, provides to reactor
Safety injection.This safety injection needs continue until material-changing water tank injection in containment, and therefore, the water of Core makeup tank fills
Amount cannot be too small.
Core makeup tank in existing passive PWR nuclear power plant is a cabinet, be can satisfy cooling to reactor
Agent system carries out the requirement of moisturizing and boronation, and executes under loss of-coolant accident (LOCA) and implement total pressure peace note to reactor coolant loop
Function, but there is also the factors that may bring adverse effect after triggering under the conditions of certain Non-LOCA accidents to accident.
It is accordingly required in particular to which a kind of advanced Core makeup tank structure, above-mentioned existing to solve the problems, such as.
Summary of the invention
The purpose of the present invention is to provide a kind of advanced Core makeup tank structures, in view of the deficiencies of the prior art, by skilful
Wonderful, passive structure can effectively reduce the water loading amount for participating in water circulation natural circulation mode, while not influence draining fortune
The water loading amount of safety injection is used under row mode.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of advanced Core makeup tank structure, which is characterized in that it includes moisturizing box body, in the moisturizing box body
Top is provided with horizontal baffle, and injection-tube in cabinet is connected in the middle part of the horizontal baffle, injection-tube lower part in the cabinet
It is provided with discharge orifice, passive float-type discharge orifice controller for opening and closing is provided on the horizontal baffle.
In one embodiment of the invention, horizontal baffle discharge orifice is provided on the horizontal baffle.
In one embodiment of the invention, float-type discharge orifice controller for opening and closing includes float limiter and titanium
Alloy hollow float ball, the float limiter are arranged in below the discharge orifice of horizontal baffle, the titanium alloy hollow float ball
It is arranged in the float limiter.
In one embodiment of the invention, bubbler is provided at the top of the moisturizing box body.
Advanced Core makeup tank structure of the invention is in water circular flow in Core makeup tank compared with prior art
Under mode, the Core makeup tank water loading amount for Natural Circulation can be effectively reduced, effectively reduces whole system since hot and cold water is mixed
Volume expansion caused by closing further prevents voltage-stablizer spill-over, while this water loading amount is able to satisfy chemical volume control system event
Boronation requirement when moisturizing requirement and main steam line when barrier rupture；In the case where Core makeup tank is in draining operational mode,
The water loading amount for safety injection is not influenced, is achieved the object of the present invention.
The features of the present invention sees the detailed description of the drawings of the present case and following preferable embodiment and obtains clearly
Solution.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of advanced Core makeup tank structure of the invention；
Fig. 2 is the present invention (is not yet fully completed water circulation) under water circulation model schematic diagram above horizontal baffle；
Fig. 3 is the present invention (is fully completed water circulation) under water circulation model schematic diagram above horizontal baffle；
Fig. 4 is the schematic diagram of under discharging mode (liquid level is higher than horizontal baffle) of the invention；
Fig. 5 is the schematic diagram of under discharging mode (liquid level is lower than horizontal baffle) of the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Embodiment
As shown in Figures 1 to 5, advanced Core makeup tank structure of the invention, it includes moisturizing box body 10, in water supply tank
The top of cabinet 10 is provided with horizontal baffle 20, and the middle part of horizontal baffle 20 is connected with injection-tube 30 in cabinet, case internal injection
30 lower part of pipe is provided with discharge orifice 31, and float-type discharge orifice controller for opening and closing 40 is provided on horizontal baffle 20.
In the present embodiment, 20 two sides of horizontal baffle are provided with horizontal baffle discharge orifice 21.
Float-type discharge orifice controller for opening and closing 40 is (passive) using structure cleverly, passive, utilizes natural force
The effect of (buoyancy) realizes that horizontal baffle discharge orifice 21 is only opened and other shapes after Core makeup tank liquid level is lower than horizontal baffle
The function of being closed under state.
In the present embodiment, float-type discharge orifice controller for opening and closing 40 includes that float limiter 41 and titanium alloy are hollow floating
The lower section of horizontal baffle discharge orifice 21 is arranged in bulbec 42, float limiter 41, and titanium alloy hollow float ball 42 is arranged in float
In limiter 41.
In the present embodiment, the top of moisturizing box body 10 is provided with bubbler 50.
When advanced Core makeup tank arrangement works of the invention:
(1) Core makeup tank water circular flow mode
When thermally stratified layer is in 20 top of horizontal baffle, the cold water in moisturizing box body 10 is flowed by injection-tube 30 in cabinet
Out, hot water is flowed by bubbler 50.Titanium alloy float ball 42 withstands under buoyancy and blocks horizontal baffle discharge orifice 21,
The water loading amount of 20 lower section of horizontal baffle is not involved in Natural Circulation.(referring to fig. 2)
When 20 top hot water loading amount of horizontal baffle gradually increases, after thermally stratified layer gradually decreases down horizontal baffle 20, titanium alloy
Float ball 42 still withstands under buoyancy and blocks horizontal baffle discharge orifice 21, and the water loading amount of 20 lower section of horizontal baffle is still
It can not participate in Natural Circulation.Then, Core makeup tank Natural Circulation, which gradually weakens, even disappears.Need to participate in the water of Natural Circulation
Loading amount is set by design requirement by the position of horizontal baffle 20.(referring to Fig. 3)
(2) Core makeup tank drains operational mode
After the fluid for entering moisturizing box body 10 from bubbler 50 is steam, moisturizing box body 10 enters draining operation mould
Formula.When 10 liquid level of moisturizing box body is higher than 20 top of horizontal baffle, titanium alloy float ball 42 withstands and blocks up under buoyancy
Horizontal baffle discharge orifice 21 is filled in, the water loading amount of 20 lower section of horizontal baffle can not be discharged.(referring to fig. 4)
When 10 liquid level of moisturizing box body is decreased below horizontal baffle 20, titanium alloy float ball 42 declines together with liquid level,
Discharge orifice 21 on horizontal baffle 20 is no longer blocked in can be with circulation status, and the steam of 20 top of horizontal baffle can lead to
It crosses discharge orifice 21 and enters 20 lower space of horizontal baffle, and then the water energy in 20 lower chamber of horizontal baffle enough passes through note in cabinet
The discharge orifice 31 for penetrating 30 lower part of pipe flow to injection-tube 30 in cabinet and is used for reactor core moisturizing.(referring to Fig. 5)
Advanced Core makeup tank structure of the invention, automatic realize participate in nature under reduction Core makeup tank water circulation model
The water loading amount of circulation, while moisturizing requirement when the water loading amount meets chemical volume control system failure and main steam pipe are revealed
Boronation requirement when splitting；The water loading amount that safety injection is used under Core makeup tank draining operational mode is not influenced.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. a kind of advanced Core makeup tank structure, which is characterized in that it includes moisturizing box body, in the upper of the moisturizing box body
Portion is provided with horizontal baffle, injection-tube in cabinet is connected in the middle part of the horizontal baffle, injection-tube lower part is set in the cabinet
It is equipped with discharge orifice, passive float-type discharge orifice controller for opening and closing is provided on the horizontal baffle.
2. advanced Core makeup tank structure as described in claim 1, which is characterized in that be provided with non-energy on the horizontal baffle
Dynamic horizontal baffle discharge orifice.
3. advanced Core makeup tank structure as described in claim 1, which is characterized in that float-type discharge orifice open and close control
Device includes float limiter and titanium alloy hollow float ball, and the float limiter is arranged under the discharge orifice of horizontal baffle
Side, the titanium alloy hollow float ball are arranged in the float limiter.
4. advanced Core makeup tank structure as described in claim 1, which is characterized in that the top of the moisturizing box body is arranged
There is bubbler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810609165.7A CN108962407B (en) | 2018-06-13 | 2018-06-13 | Advanced reactor core water supplementing tank structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810609165.7A CN108962407B (en) | 2018-06-13 | 2018-06-13 | Advanced reactor core water supplementing tank structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108962407A true CN108962407A (en) | 2018-12-07 |
| CN108962407B CN108962407B (en) | 2024-02-02 |
Family
ID=64488551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810609165.7A Active CN108962407B (en) | 2018-06-13 | 2018-06-13 | Advanced reactor core water supplementing tank structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108962407B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364276A (en) * | 2019-08-15 | 2019-10-22 | 上海阿波罗机械股份有限公司 | A kind of ASME evidence obtaining reactor core replenisher tank |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07209468A (en) * | 1994-01-20 | 1995-08-11 | Power Reactor & Nuclear Fuel Dev Corp | Control float device for reactor |
| RU2066490C1 (en) * | 1994-04-18 | 1996-09-10 | Центральный научно-исследовательский институт им.акад.А.Н.Крылова | Marine nuclear steam-generating plant |
| CN202887751U (en) * | 2012-09-27 | 2013-04-17 | 中国核电工程有限公司 | Kinetic and passive combined injection heat leading-out device of reactor core |
| CN103413582A (en) * | 2013-07-31 | 2013-11-27 | 中科华核电技术研究院有限公司 | Safety injection tank |
| CN103928062A (en) * | 2013-01-14 | 2014-07-16 | 上海核工程研究设计院 | Self-pressurized reactor core water supply system |
| CN105047236A (en) * | 2015-06-09 | 2015-11-11 | 中国核动力研究设计院 | Passive cooling system for retention of melts in serious accident state of reactor |
| CN204991158U (en) * | 2015-05-12 | 2016-01-20 | 国核华清（北京）核电技术研发中心有限公司 | A active gravity ann notes system of non - for nuclear power station |
| CN105788670A (en) * | 2016-06-01 | 2016-07-20 | 中国核动力研究设计院 | Improved structure of reactor core water compensating box simulator |
| CN206450671U (en) * | 2017-01-07 | 2017-08-29 | 天津市科达斯实业有限公司 | Recirculated cooling water dynamic simulation tester with automatic water-replenishing device |
| KR101789135B1 (en) * | 2016-10-28 | 2017-10-25 | 한국원자력연구원 | Safety injection system and nuclear power plant having the same |
| CN107393605A (en) * | 2017-07-07 | 2017-11-24 | 西安交通大学 | The passive air-cooling apparatus and method of a kind of modular small nuclear reactor |
| CN108122622A (en) * | 2017-11-23 | 2018-06-05 | 中国核电工程有限公司 | A kind of cooling water tank of Passive containment cooling system |
-
2018
- 2018-06-13 CN CN201810609165.7A patent/CN108962407B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07209468A (en) * | 1994-01-20 | 1995-08-11 | Power Reactor & Nuclear Fuel Dev Corp | Control float device for reactor |
| RU2066490C1 (en) * | 1994-04-18 | 1996-09-10 | Центральный научно-исследовательский институт им.акад.А.Н.Крылова | Marine nuclear steam-generating plant |
| CN202887751U (en) * | 2012-09-27 | 2013-04-17 | 中国核电工程有限公司 | Kinetic and passive combined injection heat leading-out device of reactor core |
| CN103928062A (en) * | 2013-01-14 | 2014-07-16 | 上海核工程研究设计院 | Self-pressurized reactor core water supply system |
| CN103413582A (en) * | 2013-07-31 | 2013-11-27 | 中科华核电技术研究院有限公司 | Safety injection tank |
| CN204991158U (en) * | 2015-05-12 | 2016-01-20 | 国核华清（北京）核电技术研发中心有限公司 | A active gravity ann notes system of non - for nuclear power station |
| CN105047236A (en) * | 2015-06-09 | 2015-11-11 | 中国核动力研究设计院 | Passive cooling system for retention of melts in serious accident state of reactor |
| CN105788670A (en) * | 2016-06-01 | 2016-07-20 | 中国核动力研究设计院 | Improved structure of reactor core water compensating box simulator |
| KR101789135B1 (en) * | 2016-10-28 | 2017-10-25 | 한국원자력연구원 | Safety injection system and nuclear power plant having the same |
| CN206450671U (en) * | 2017-01-07 | 2017-08-29 | 天津市科达斯实业有限公司 | Recirculated cooling water dynamic simulation tester with automatic water-replenishing device |
| CN107393605A (en) * | 2017-07-07 | 2017-11-24 | 西安交通大学 | The passive air-cooling apparatus and method of a kind of modular small nuclear reactor |
| CN108122622A (en) * | 2017-11-23 | 2018-06-05 | 中国核电工程有限公司 | A kind of cooling water tank of Passive containment cooling system |
Non-Patent Citations (1)
| Title |
|---|
| 喻娜;李峰;周科;冉旭;初晓;张晓华;: "补水箱水装量对非能动余热排出系统运行的影响分析", 核科学与工程, no. 06 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364276A (en) * | 2019-08-15 | 2019-10-22 | 上海阿波罗机械股份有限公司 | A kind of ASME evidence obtaining reactor core replenisher tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108962407B (en) | 2024-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2954136C (en) | Containment cooling system and containment and reactor pressure vessel joint cooling system | |
| CN201689688U (en) | System for cooling reactor core, filling water in reactor cavity and guiding out heat of containment | |
| US7983376B2 (en) | Boiling water nuclear reactor and emergency core cooling system of the same | |
| CN103903659B (en) | Floating nuclear power plant Heat Discharging System of Chinese | |
| US9859027B2 (en) | Multi stage safety injection device and passive safety injection system having the same | |
| CN107293341A (en) | Pool reactor | |
| CN108122622B (en) | Cooling water tank of passive containment cooling system | |
| CN201788707U (en) | Safety system for ensuring safety of nuclear power station | |
| CN106328223B (en) | A kind of novel passive containment energy management system | |
| CN104103325B (en) | Heat derivation system for long-term passive containment | |
| CN104979024B (en) | The passive blood pressure lowering water filling cooling system of floating nuclear power plant and its operation method | |
| CN104091621B (en) | Passive out-pile cooling system | |
| EP0030698A3 (en) | Boiling-water reactor | |
| CN110097982A (en) | A kind of injection of npp safety and residual heat removal system | |
| CN114038590A (en) | Passive and active reactor cavity water injection cooling system and method | |
| KR20130000572A (en) | Apparatus for safety improvement of passive type emergency core cooling system with a safeguard vessel and method for heat transfer-function improvement using thereof | |
| CN209232422U (en) | The coolant of reactor and reactor emergency injected system | |
| CN108962407A (en) | A kind of advanced Core makeup tank structure | |
| CN207529679U (en) | A kind of safety injection system and nuclear power system | |
| Chun et al. | Safety evaluation of small-break LOCA with various locations and sizes for SMART adopting fully passive safety system using MARS code | |
| CN108932984B (en) | Double-fluid molten salt fast reactor overflow tank system and control method thereof | |
| CN103413582B (en) | Peace note case | |
| CN106033686A (en) | Nuclear reactor shutdown device with high reliability | |
| CN208271569U (en) | Naval reactor and its Passive residual heat removal system | |
| CN203950557U (en) | Fused mass gaseous-waste holdup system in heap after nuclear power plant accident |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
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 Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |