CN108986935A - A kind of nuclear power plant's accident hot trap water tank passive cooling system - Google Patents
A kind of nuclear power plant's accident hot trap water tank passive cooling system Download PDFInfo
- Publication number
- CN108986935A CN108986935A CN201810545464.9A CN201810545464A CN108986935A CN 108986935 A CN108986935 A CN 108986935A CN 201810545464 A CN201810545464 A CN 201810545464A CN 108986935 A CN108986935 A CN 108986935A
- Authority
- CN
- China
- Prior art keywords
- cooling tower
- hot trap
- trap water
- water tank
- cooling
- 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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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
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
- G21C15/14—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices from headers; from joints in ducts
-
- 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
Abstract
The invention belongs to nuclear safety control technology fields, are related to a kind of nuclear power plant's accident hot trap water tank passive cooling system.The system includes gravity assisted heat pipe beam, the cooling tower that hot trap water tank, more gravity assisted heat pipes are formed；Hot trap water tank lower space contains hot trap water body；Cooling tower is placed in the top of hot trap water tank, exports for hot trap water tank further to be passed through heat exchange by heat derived from gravity assisted heat pipe from gravity assisted heat pipe；Every gravity assisted heat pipe runs through hot trap water tank and cooling tower, and for by the inner space of the heat derives in hot trap water body to cooling tower, its underpart to be immersed in hot trap water body, top is located in the inner space of cooling tower；The volume that gravity assisted heat pipe beam is located at the part in cooling tower inner space accounts for the ratio of cooling tower inner space volume 30% or more.Using system of the invention, the boiling of hot trap water body can be significantly inhibited, Passive containment cooling system effective run time is extended, improve the reliability of nuclear power plant's inherent safety and system cooling.
Description
Technical field
The invention belongs to nuclear safety control technology fields, are related to a kind of passive cooling system of nuclear power plant's accident hot trap water tank
System.
Background technique
Accident hot trap water tank is the important component of npp safety shell passive cooling system (PCCS), is can absorb
Heat number, directly decision the inert size of nuclear power plant's accident.Generation Ⅲ nuclear power system has passive containment heat more
Guiding system, such as: AP600&1000-PCS, ABWRII-PCCS, AHWR-PCCS, ESBWR-PCCS, SWR1000-PCCS,
WWER640-PCCS and WWER1000-PCCS etc..And numerous patent applications, such as US5,049,353 (US Westinghouse company,
1991), US5,282,230 (GE companies of the U.S., 1994), US5,295,168 (GE companies of the U.S., 1994), US5,
499,278 (GE companies of the U.S., 1996), US6,069,930 (GE company of the U.S., 2000) disclose such passive
Containment heat derives system.These passive containment thermal conduction systems all have the accident hot trap water for exclusively enjoying or sharing
Case, but its capacity is generally limited.And the prior art there is no that set up sub- cooling system for accident hot trap water tank passive to improve
The report of containment cooling system performance.
Summary of the invention
The purpose of the present invention is the requirements for nuclear safety control, and it is passive cold to provide a kind of nuclear power plant's accident hot trap water tank
But system extends Passive containment cooling system effective run time, improves nuclear power plant to significantly inhibit the boiling of hot trap water body
The reliability of inherent safety and system cooling.
In order to achieve this, the present invention provides a kind of nuclear power plant's accident hot trap water tank non-energy in the embodiment on basis
Dynamic cooling system, the passive cooling system include gravity assisted heat pipe beam, the cooling that hot trap water tank, more gravity assisted heat pipes are formed
Tower,
The hot trap water tank lower space contains hot trap water body, and upper space forms the gas compartment；
The cooling tower is placed in the top of the hot trap water tank, for the hot trap water tank to be passed through the weight
Heat derived from power heat pipe further passes through heat exchange and exports from the gravity assisted heat pipe；
Gravity assisted heat pipe described in every runs through the hot trap water tank and the cooling tower, for by the hot trap water
Heat derives in body are into the inner space of the cooling tower, and its underpart is immersed in the hot trap water body, upper bit
In the inner space of the cooling tower；
The volume that the gravity assisted heat pipe beam is located at the part in the cooling tower inner space accounts for the cooling tower
The ratio of inner space volume is 30% or more.
In a preferred embodiment, the present invention provides a kind of nuclear power plant's accident hot trap water tank passive cooling system
System, wherein the side wall of the cooling tower forms the thin-walled of double-curved shapes.
In a preferred embodiment, the present invention provides a kind of nuclear power plant's accident hot trap water tank passive cooling system
System, wherein the enveloping surface that the gravity assisted heat pipe beam is formed is similar to the inner surface configuration of the cooling tower.
In a preferred embodiment, the present invention provides a kind of nuclear power plant's accident hot trap water tank passive cooling system
System, wherein the hot trap water tank upper edge is provided with the extended structure faced out along cabinet upright side walls, described prolongs
Stretching structure includes being supported to be formed by reinforcing rib, the maintenance platform parallel with the upper surface of hot trap water tank.
In a preferred embodiment, the present invention provides a kind of nuclear power plant's accident hot trap water tank passive cooling system
System, wherein the maintenance platform is being furnished with multiple equipment shipping hole close to periphery punishment, the equipment conveying hole can be used as
Device channels when the passive cooling system installation and operating maintenance, diameter is at least than the gravity assisted heat pipe diameter
It is big by 50%.
In a preferred embodiment, the present invention provides a kind of nuclear power plant's accident hot trap water tank passive cooling system
System is located at the hot trap water tank and the cooling wherein the passive cooling system further includes cooling tower bracket
Between tower, it is used to support the cooling tower.
In a preferred embodiment, the present invention provides a kind of nuclear power plant's accident hot trap water tank passive cooling system
System, wherein in the cooling tower bracket at least one section for cooling tower bracket can be removed, for after removing it to described
Cooling tower is dismounted and is repaired.
In a preferred embodiment, the present invention provides a kind of nuclear power plant's accident hot trap water tank passive cooling system
System is used for wherein the one-step cooling tower side wall being located above the removable cooling tower bracket forms cooling tower flexibility clad can
The dismounting and maintenance of the cooling tower are carried out after conveniently dismantling to it.
In a preferred embodiment, the present invention provides a kind of nuclear power plant's accident hot trap water tank passive cooling system
System is set wherein being provided on the outlet passageway of supply fan and/or the cooling tower on the inlet channel of the cooling tower
It is equipped with scavenger fan.
In a preferred embodiment, the present invention provides a kind of nuclear power plant's accident hot trap water tank passive cooling system
System, wherein multiple cooling sprays are provided at the outlet passageway of the cooling tower, it is right when for after accident in the presence of water source can be used
The gravity assisted heat pipe Shu Jinhang spraying cooling, the cooling spray provide cooling water by spraying cooling pipeline.
The beneficial effects of the present invention are utilize nuclear power plant's accident hot trap water tank passive cooling system of the invention, energy
The thermal conductivity for enough improving Passive containment cooling system goes out efficiency, to significantly inhibit the boiling of hot trap water body, extends passive peace
Full shell cooling system effective run time, the inherent safety and system for improving nuclear power plant's nuclear reactor safety shell cool down reliable
Property.
The present invention is with following outstanding advantage: (1) the gravity assisted heat pipe beam that gravity assisted heat pipe is formed has biggish heat exchange
Area, the gross area can significantly inhibit the boiling of hot trap water body, extend passive peace up to 4-5 times of accident hot trap water tank surface area
Full shell cooling system effective run time；(2) cooling tower gravity-flow ventilation is passive process, and gravity assisted heat pipe is passive equipment,
Reinforce nuclear power plant's accident hot trap performance using it, nuclear power plant's inherent safety can be improved；(3) each branch gravity assisted heat pipe is set independently of one another
It sets, can make system refrigerating function that there is higher reliability.
Detailed description of the invention
Fig. 1 is the axial sectional view of illustrative nuclear power plant's accident hot trap water tank passive cooling system of the invention.
Fig. 2 is the axial semi-cutaway of illustrative nuclear power plant's accident hot trap water tank passive cooling system of the invention.
Fig. 3 is the perspective view of illustrative nuclear power plant's accident hot trap water tank passive cooling system of the invention.
Specific embodiment
A specific embodiment of the invention is further illustrated below in conjunction with attached drawing.
Illustrative nuclear power plant's accident hot trap water tank passive cooling system of the invention is as shown in Figure 1-3, include hot trap
Water body 1, hot trap water tank 2, cooling tower 3, cooling tower bracket 4, gravity assisted heat pipe 5, gravity assisted heat pipe upper-lower section joint face 6, heat pipe run through
Part 7, maintenance platform 9, reinforcing rib 10, cooling tower inner space 11, the hot trap water tank gas compartment 12, is set hot trap water tank gas vent 8
Cooling tower flexibility clad can 14, cooling tower bracket 15, scavenger fan 16, supply fan 17, cooling spray can be removed in standby shipping hole 13
18, spraying cooling pipeline 19.
2 lower space of hot trap water tank contains hot trap water body 1, and upper space forms the hot trap water tank gas compartment 12.Hot trap water
The side wall upper section of case 2 is provided with hot trap water tank gas vent 8, the gas for being discharged in the hot trap water tank gas compartment 12.Hot trap water tank 2
Upper edge is provided with the extended structure faced out along cabinet upright side walls, which includes supporting shape by reinforcing rib 10
At, the maintenance platform 9 parallel with the upper surface of hot trap water tank 2.Maintenance platform 9 is being furnished with multiple equipment fortune close to periphery punishment
Defeated hole 13, as passive cooling system installation and device channels when operating maintenance, minimum 5 diameter of force of gravity heat pipe of diameter
It is big by 50%.
Cooling tower 3 is placed in the top of hot trap water tank 2, and by supporting in the cooling tower bracket 4 being arranged among them.It is cooling
Tower 3 is used to hot trap water tank 2 further passing through heat exchange by heat derived from gravity assisted heat pipe 5 and export from gravity assisted heat pipe 5.It is cooling
The side wall of tower 3 forms the thin-walled of double-curved shapes (side wall of cooling tower 3 forms the upper section of gravity heat pipe bundle 5 and surrounds).It is cooling
At least one section is removable cooling tower bracket 15 in tower bracket 4, and the one-step cooling tower 3 of 15 top of cooling tower bracket can be removed
Side wall forms cooling tower flexibility clad can 14.Cooling tower bracket 15 can be removed and cooling tower flexibility clad can 14 is provided commonly for removing it
Cooling tower 3 is dismounted and repaired afterwards.Supply fan 17 is provided on the inlet channel of cooling tower 3, the outlet of cooling tower 3 is logical
Scavenger fan 16 is provided on road.Multiple cooling sprays 18 are provided at the outlet passageway of cooling tower 3, it can for existing after accident
When with water source, spraying cooling is carried out to gravity assisted heat pipe 5, cooling spray 18 provides cooling water by spraying cooling pipeline 19.
Gravity assisted heat pipe 5 runs through hot trap water tank 2 and cooling tower 3, for by the heat derives in hot trap water body 1 to cooling tower 3
Inner space in.Gravity assisted heat pipe 5 is made of two sections.5 lower section of gravity assisted heat pipe passes through heat pipe penetration piece 7 and (is set to hot trap
On 2 top plate of water tank) it is fixed on 2 top plate of hot trap water tank, and end is immersed in hot trap water body 1；5 upper section of gravity assisted heat pipe is in gravity warm
It is connected at pipe upper-lower section joint face 6 with 5 lower section of gravity assisted heat pipe.Gravity assisted heat pipe upper-lower section joint face 6 is located on 2 top plate of hot trap water tank
In the cooling tower inner space 11 of side.
Gravity assisted heat pipe beam is made of the different gravity assisted heat pipe 5 of more root long degree, and a fixed spacing is kept between gravity assisted heat pipe 5.Gravity
The volume that heat pipe bundle is located at the part in cooling tower inner space 11 account for the ratio of 11 volume of cooling tower inner space 30% with
On.The enveloping surface that gravity assisted heat pipe beam is formed is similar to the inner surface configuration of cooling tower 3.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.If in this way, belonging to the model of the claims in the present invention and its equivalent technology to these modifications and changes of the present invention
Within enclosing, then the present invention is also intended to include these modifications and variations.Above-described embodiment or embodiment are only to the present invention
For example, the present invention can also be implemented with other ad hoc fashions or other particular form, without departing from of the invention
Main idea or substantive characteristics.Therefore, the embodiment of description is regarded as illustrative and non-limiting in any way.This
The range of invention should be illustrated that any variation equivalent with the intention and range of claim also should include by appended claims
Within the scope of the invention.
Claims (10)
1. a kind of nuclear power plant's accident hot trap water tank passive cooling system, which is characterized in that the passive cooling system packet
Include hot trap water tank, gravity assisted heat pipe beam, the cooling tower that more gravity assisted heat pipes are formed,
The hot trap water tank lower space contains hot trap water body, and upper space forms the gas compartment；
The cooling tower is placed in the top of the hot trap water tank, for the hot trap water tank to be passed through the gravity heat
It manages derived heat and further passes through heat exchange from the gravity assisted heat pipe export；
Gravity assisted heat pipe described in every runs through the hot trap water tank and the cooling tower, for will be in the hot trap water body
Heat derives into the inner space of the cooling tower, its underpart is immersed in the hot trap water body, and top is located at institute
In the inner space for the cooling tower stated；
The volume that the gravity assisted heat pipe beam is located at the part in the cooling tower inner space accounts for inside the cooling tower
The ratio of spatial volume is 30% or more.
2. passive cooling system according to claim 1, it is characterised in that: the side wall of the cooling tower forms hyperbolic
The thin-walled of face shape.
3. passive cooling system according to claim 1, it is characterised in that: the envelope that the gravity assisted heat pipe beam is formed
Face is similar to the inner surface configuration of the cooling tower.
4. passive cooling system according to claim 1, it is characterised in that: the hot trap water tank upper edge is set
It is equipped with the extended structure faced out along cabinet upright side walls, the extended structure includes being supported to be formed by reinforcing rib, with institute
The parallel maintenance platform in the upper surface for the hot trap water tank stated.
5. passive cooling system according to claim 4, it is characterised in that: the maintenance platform is close at periphery
Multiple equipment shipping hole is distributed with, the equipment conveying hole can be used as the passive cooling system installation and operating maintenance
When device channels, diameter is at least bigger by 50% than the gravity assisted heat pipe diameter.
6. passive cooling system according to claim 1, it is characterised in that: the passive cooling system further includes
Cooling tower bracket is used to support the cooling tower between the hot trap water tank and the cooling tower.
7. passive cooling system according to claim 6, it is characterised in that: at least one in the cooling tower bracket
Is cooling tower bracket can be removed in section, for the cooling tower to be dismounted and repaired after removing it.
8. passive cooling system according to claim 7, it is characterised in that: positioned at the removable cooling tower bracket
The one-step cooling tower side wall of top forms cooling tower flexibility clad can, for carrying out tearing open for the cooling tower after conveniently dismantling to it
Dress and maintenance.
9. passive cooling system according to claim 1, it is characterised in that: set on the inlet channel of the cooling tower
It is equipped on the outlet passageway of supply fan and/or the cooling tower and is provided with scavenger fan.
10. passive cooling system according to claim 1, it is characterised in that: at the inlet channel of the cooling tower
Multiple cooling sprays are provided with, when for after accident in the presence of water source can be used, to the gravity assisted heat pipe Shu Jinhang spraying cooling, institute
The cooling spray stated provides cooling water by spraying cooling pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810545464.9A CN108986935A (en) | 2018-05-25 | 2018-05-25 | A kind of nuclear power plant's accident hot trap water tank passive cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810545464.9A CN108986935A (en) | 2018-05-25 | 2018-05-25 | A kind of nuclear power plant's accident hot trap water tank passive cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108986935A true CN108986935A (en) | 2018-12-11 |
Family
ID=64542792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810545464.9A Pending CN108986935A (en) | 2018-05-25 | 2018-05-25 | A kind of nuclear power plant's accident hot trap water tank passive cooling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108986935A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260682A (en) * | 2019-06-24 | 2019-09-20 | 福建远致环保科技有限公司 | A kind of cooling tower |
| KR20200110971A (en) * | 2019-03-18 | 2020-09-28 | 한국전력기술 주식회사 | Cooling water storage tank passive cooling device for containment passive cooling system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1755129A2 (en) * | 2005-08-18 | 2007-02-21 | Kabushiki Kaisha Toshiba | Reactor containment vessel cooling equipment and nuclear power plant |
| CN101710494A (en) * | 2009-11-17 | 2010-05-19 | 华北电力大学 | Passive heat rejection serious accident relieving device for nuclear power stations |
| CN102644996A (en) * | 2012-04-09 | 2012-08-22 | 中国核电工程有限公司 | Spent fuel water tank natural ventilation and water recovery system responding to serious accident |
| CN104051032B (en) * | 2014-06-13 | 2017-01-04 | 长江勘测规划设计研究有限责任公司 | Underground nuclear power station spentnuclear fuel pond is passive continues cooling system |
| CN106653106A (en) * | 2017-01-19 | 2017-05-10 | 华南理工大学 | Nuclear power station spent fuel pool multistage long-distance passive heat pipe cooling system |
| 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 |
-
2018
- 2018-05-25 CN CN201810545464.9A patent/CN108986935A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1755129A2 (en) * | 2005-08-18 | 2007-02-21 | Kabushiki Kaisha Toshiba | Reactor containment vessel cooling equipment and nuclear power plant |
| CN101710494A (en) * | 2009-11-17 | 2010-05-19 | 华北电力大学 | Passive heat rejection serious accident relieving device for nuclear power stations |
| CN102644996A (en) * | 2012-04-09 | 2012-08-22 | 中国核电工程有限公司 | Spent fuel water tank natural ventilation and water recovery system responding to serious accident |
| CN104051032B (en) * | 2014-06-13 | 2017-01-04 | 长江勘测规划设计研究有限责任公司 | Underground nuclear power station spentnuclear fuel pond is passive continues cooling system |
| CN106653106A (en) * | 2017-01-19 | 2017-05-10 | 华南理工大学 | Nuclear power station spent fuel pool multistage long-distance passive heat pipe cooling system |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200110971A (en) * | 2019-03-18 | 2020-09-28 | 한국전력기술 주식회사 | Cooling water storage tank passive cooling device for containment passive cooling system |
| KR102192650B1 (en) * | 2019-03-18 | 2020-12-17 | 한국전력기술 주식회사 | Cooling water storage tank passive cooling device for containment passive cooling system |
| CN110260682A (en) * | 2019-06-24 | 2019-09-20 | 福建远致环保科技有限公司 | A kind of cooling tower |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181211 |
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| RJ01 | Rejection of invention patent application after publication |