CN106328223A - Novel passive safety shell energy control system - Google Patents
Novel passive safety shell energy control system Download PDFInfo
- Publication number
- CN106328223A CN106328223A CN201610801851.5A CN201610801851A CN106328223A CN 106328223 A CN106328223 A CN 106328223A CN 201610801851 A CN201610801851 A CN 201610801851A CN 106328223 A CN106328223 A CN 106328223A
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- containment
- valve
- heat
- cooling water
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- 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
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- 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 novel passive safety shell energy control system which comprises an open circulating heat exchange device, a high-position cooling water tank, a safety shell inner heat exchange device, a low-position cooling water tank and a safety shell outer heat exchange device. The high-position cooling water tank and the open circulating heat exchange device are connected to form an open circulating loop, a valve is arranged on the open circulating loop, the safety shell inner heat exchange device and the safety shell outer heat exchange device are connected to form a closed circulating loop, and a valve is arranged on the closed circulating loop. The novel passive safety shell energy control system can quickly respond to a breaking accident of a high-energy pipeline in a safety shell and can effectively guide out heat in the safety shell to inhibit rising pressure and temperature in the safety shell; a passive structure is reasonable in design, so that failing of the system can be avoided greatly, and safety and economic efficiency of a nuclear power plant are improved.
Description
Technical field
The present invention relates to nuclear power field, particularly relate to a kind of novel passive containment energy management system.
Background technology
The passive containment cooling of the existing steel containment vessel energy management system applied and AP1000 nuclear power plant
There is following technical problem in system:
1, steel containment vessel energy management system uses the outside mode flooded to derive heat in containment, in the effect of gravity
Under, the water in the outer elevated tank of containment is injected into outside containment and floods pond and flood whole steel containment vessel.For containment
The nuclear power plant that volume is bigger, needs to arrange the water tank of large volume, and accommodates in steel containment vessel external enwergy when using this technology
The pond of all cooling water, economy is poor, higher to space requirement.
2, the steel containment vessel of AP1000 nuclear power plant needs the biggest free volume, and the physical dimension of containment requires non-
Chang great, adds construction cost；Additionally, the cooling capacity of AP1000 nuclear power plant depends on the outside spray of steel containment vessel, and outer
The moisture film of portion's steel wall is most important to its exchange capability of heat, and can moisture film be effectively formed certain scale the most extremely matter in the field of business
Doubt.
Summary of the invention
The technical problem to be solved is, it is provided that a kind of novel passive containment energy management system, energy
Enough quickly respond under high energy pipeline cut accident in containment, effectively derive the heat in containment, in making containment
The pressure and temperature raised is inhibited；Passive reasonable in design, can greatly avoid thrashing, improves the peace of nuclear power plant
Full property and economy.
In order to solve above-mentioned technical problem, The embodiment provides a kind of novel passive containment energy hole
System, including: it is arranged in containment, in order to discharge the open circulation of heat in the case of high energy pipeline breaking in absorption safety shell
Heat-exchanger rig；The cooling water head tank being arranged on outside containment, cooling water head tank and open circulation heat-exchanger rig connect formation
Open circulation loop, is provided with multiple valve in order to be turned on and off open circulation loop on open circulation loop；It is arranged on
In containment, in order to discharge heat-exchanger rig in the containment of heat in the case of high energy pipeline breaking in absorption safety shell；It is arranged on
Low level cooling water tank outside containment；It is arranged on the heat-exchanger rig containment in low level cooling water tank Wai, heat exchange dress in containment
Put heat-exchanger rig outer with containment and be connected formation closed cycle loop, closed cycle loop is provided with multiple in order to open or to close
Close the valve in closed cycle loop, wherein: when pressure rises to containment high pressure setting valve in containment, open open type and follow
Valve in loop back path and/or closed cycle loop, is conducted heat to by open circulation loop and/or closed cycle loop
In cooling water tank outside containment.
Wherein, also include: around being arranged on the constrain pond of containment inner pressure vessel surrounding, constrain pond and containment
Inner atmosphere connection, wherein: in containment during high energy pipeline breaking, in containment the mixture of steam and air due to pressure
Difference enters the cooling of constrain pond, raises with pressure in suppressing containment.
Wherein, open circulation loop includes first entering cooling water head tank is connected with open circulation heat-exchanger rig respectively
Mouth pipeline and the first export pipeline；Valve on open circulation loop includes being arranged on inside the containment on the first entrance pipe
A valve and containment outside a valve, and be arranged on a valve within the containment on the first export pipeline
Door and a valve outside containment.
Wherein, a valve within the containment on the first entrance pipe and a valve outside containment it are arranged on
It is in normally open；It is arranged on a valve within the containment on the first export pipeline and a valve outside containment
It is in normally off.
Wherein, closed cycle loop include being connected by outer to heat-exchanger rig in containment and containment heat-exchanger rig respectively the
Two entrance pipes and the second export pipeline；Valve on closed cycle loop includes the containment being arranged on the second entrance pipe
A valve outside an internal valve and containment, and it is arranged within the containment on the second export pipeline
A valve outside individual valve and containment.
Wherein, a valve within the containment on the second entrance pipe and a valve outside containment it are arranged on
It is in normally open；It is arranged on a valve within the containment on the second export pipeline and a valve outside containment
It is in normally off.
Wherein, the position set by low level cooling water tank is higher than the position of heat-exchanger rig in the containment being arranged in containment
Put, using the hot trap as closed cycle loop.
Wherein, cooling water head tank is arranged on the elevation location of containment, using the hot trap as open circulation loop.
Novel passive containment energy management system provided by the present invention, has the advantages that
The first, when pressure rises to containment high pressure setting valve in containment, open open circulation loop and/or enclosed is followed
Valve in loop back path, conducts heat to the cooling water outside containment by open circulation loop and/or closed cycle loop
In case.Absorbed heat by heat exchanger in using containment, in a circulating manner heat is reached the cooling water tank outside containment, nothing
Need to flood containment, institute's water requirement is less, and without arranging the pond accommodating cooling water；Additionally, in design basis thing
Therefore and beyond design basis accident (including major accident) under, it is not necessary to off-site power and the intervention of operator in factory, rely on native system
The heat in containment can be taken away for a long time, it is ensured that the radioactivity of containment contains function.
Second, in containment during high energy pipeline breaking, in containment, the mixture of steam and air is due to pressure reduction entrance
Constrain pond cools down, it is possible in suppression containment, pressure raises, it is possible to quickly ring under high energy pipeline cut accident in containment
Should, effectively derive the heat in containment, enhance the safety of reactor.
3rd, passive reasonable in design, can greatly avoid thrashing, use two separate modes of looping back
Road, it is ensured that the multiformity of system design and redundancy, improves safety and the economy of nuclear power plant.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the present invention novel passive containment energy management system.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
In conjunction with seeing Fig. 1, for the embodiment one of the present invention novel passive containment energy management system.
Novel passive containment energy management system in the present embodiment, including: it is arranged in containment 1, in order to inhale
The open circulation heat-exchanger rig 21 of heat is discharged in the case of high energy pipeline breaking in receipts containment 1；It is arranged on the height outside containment 1
Position cooling water tank 22, cooling water head tank 22 and open circulation heat-exchanger rig 21 connect formation open circulation loop 2, follow in open type
Loop back path 2 is provided with multiple valve in order to be turned on and off open circulation loop 2；It is arranged in containment 1, in order to absorb peace
Heat-exchanger rig 31 in the containment of heat is discharged in the case of high energy pipeline breaking in full shell；The low level being arranged on outside containment 1 is cold
But water tank 32；It is arranged on heat-exchanger rig 33 containment in low level cooling water tank 32 Wai, heat-exchanger rig 31 and safety in containment
The outer heat-exchanger rig 33 of shell connects and forms closed cycle loop 3, is provided with and multiple closes in order to being turned on and off on closed cycle loop 3
The valve of formula closed circuit, wherein: when pressure rises to containment high pressure setting valve in containment 1, opens open circulation
Valve on loop 2 and/or closed cycle loop 3, is conducted heat by open circulation loop 2 and/or closed cycle loop 3
In cooling water tank outside containment 1 22,33.
Further, also include: around being arranged on the constrain pond 4 of containment 1 inner pressure vessel 11 surrounding, constrain pond
4 connect, wherein with the inner atmosphere of containment 1: in containment 1 during high energy pipeline breaking, steam and air in containment
Mixture cools down owing to pressure reduction enters constrain pond 4, raises with pressure in suppressing containment.
When being embodied as, constrain pond 4 is arranged ringwise around pressure vessel 11 in containment 1, and constrain pond 4 has
Hydrospace and headroom.Constrain pond 4 is by exhaust passage and the atmosphere in containment 1, and the effect in constrain pond 4 is,
Quickly can respond under high energy pipeline cut accident in containment, in suppression containment, pressure raises, and effectively derives safety
Heat in shell, with the safety of intensified response heap.
The middle and late stage of accident reduces due to the pressure reduction between containment 1 free space and constrain pond 4, constrain pond 4
Condensation weakens, and is mainly derived by heat by open circulation loop 2 or closed cycle loop 3.
Specifically, open circulation loop 2 includes being connected with open circulation heat-exchanger rig 21 by cooling water head tank 22 respectively
The first entrance pipe 23 and the first export pipeline 24；Valve on open circulation loop includes being arranged on the first entrance pipe 23
On within containment 1 valve 231 and a valve 232 outside containment 1, and be arranged on the first export pipeline
Within containment 1 valve 241 on 24 and a valve 242 outside containment 1.
Wherein, the valve 231 within containment 1 being arranged on the first entrance pipe 23 and the valve outside containment 1
232 are in normally open；The valve 241 within containment 1 being arranged on the first export pipeline 24 and the valve outside containment 1
Door 242 is in normally off.
When being embodied as, cooling water head tank 22 is arranged on the top of containment 1, using the heat as open circulation loop 2
Trap.Valve 241,242 when the pressure in containment 1 reaches setting valve, on the export pipeline 24 of open circulation loop 2 first.
After containment 1 swing-in cycle heat exchange device 21 tube fluid absorbs heat, temperature raises, in the effect of Natural Circulation driving force
Under flow up, enter in the outer cooling water head tank of containment 1 22 and cool down, in cooling water head tank 22, the temperature of water is relatively
The fluid low, heat-exchanger rig Midst density is bigger returns in open circulation heat-exchanger rig 21 under gravity, thus forms one
The closed circuit of open type.
Further, closed cycle loop 3 includes respectively by outer to heat-exchanger rig in containment 31 and containment heat-exchanger rig
33 the second entrance pipe 35 and the second export pipelines 36 being connected；On closed cycle loop, the valve of 3 includes that being arranged on second enters
Within containment 1 valve 351 on mouth pipeline 35 and a valve 352 outside containment 1, and it is arranged on second
Within containment 1 valve 361 on export pipeline 36 and a valve 362 outside containment 1.
Wherein, the valve 351 within containment 1 being arranged on the second entrance pipe 35 and the valve outside containment 1
352 are in normally open；The valve 361 within containment 1 being arranged on the second export pipeline 36 and the valve outside containment 1
Door 362 is in normally off.
When being embodied as, the position set by low level cooling water tank 32 is changed higher than in being arranged on the containment in containment 1
The position of thermal 31, using the hot trap as closed cycle loop.When pressure reaches setting valve in containment 1, open enclosed
The valve 361,362 of closed circuit 3 second export pipeline 36.In containment 1 inner containment, heat-exchanger rig 31 tube fluid absorbs
After heat, temperature raises, and flows up under the effect of Natural Circulation driving force, enters outside low level cooling water tank 32 inner containment
In the pipe of heat-exchanger rig 33, after rejecting heat to the fluid in low level cooling water tank 32, temperature declines, and returns in containment 1
In containment in heat-exchanger rig 31, form the closed circuit of an enclosed.
The novel passive containment energy management system of the present invention, when having enforcement, after there is cut accident, presses down
Setting-out pond 4 can suppress containment pressure and temperature rapid increase at the accident initial stage, containment 1 free space and constrain pond it
Between pressure reduction be gradually reduced, the condensation in constrain pond gradually weakens.When in containment 1, pressure rises to containment high pressure
During setting valve, open open circulation loop 2 and or closed cycle loop 3 on valve opening, by heat in the way of Natural Circulation
Amount passes in the outer cooling water tank of containment, and by the temperature rise of water in cooling water tank, seething with excitement and evaporating is discharged to external environment by heat
In.The novel passive containment energy management system of invention can whole after accident during the most passive realize heap
Core and the discharge of containment heat.
In other embodiment, the novel passive containment energy management system of the present invention can be applied 3～2,000,000
The PWR nuclear power plant of kilowatt (electrical power) rank.Passive containment energy management system is to the structure of containment, size, material
The requirement of material is less (being such as applicable to the reactor room system design of ocean nuclear power platform).In reactor generation design basis thing
Therefore and beyond design basis accident (including major accident) after, both needed not rely on active system, need not again Operator actions, energy
In ensureing containment, the long-term of heat is persistently discharged, and reactor is maintained at safe condition.Additionally, use heat exchanger to derive heat
Mode, exchange capability of heat do not rely on formation uncontrollable moisture film, it is not necessary to arrange be provided that flood containment cooling water water
Case, and without arranging the pond accommodating cooling water.Safety is improve again while reducing cost.
The passive containment energy management system of the present invention accommodates the pond of cooling water, beneficially nuclear power plant without arranging
Close-coupled arrange；Without using expensive Emergency diesel, greatly reduce number of devices, reduce equipment purchase, installation,
The expenses such as operation and maintenance, the construction cost and the operation and maintenance expenses that greatly reduce nuclear power plant are used.
Implement the novel passive containment energy management system of the present invention, have the advantages that
The first, when pressure rises to containment high pressure setting valve in containment, open open circulation loop and/or enclosed is followed
Valve in loop back path, conducts heat to the cooling water outside containment by open circulation loop and/or closed cycle loop
In case.Absorbed heat by heat exchanger in using containment, in a circulating manner heat is reached the cooling water tank outside containment, nothing
Need to flood containment, institute's water requirement is less, and without arranging the pond accommodating cooling water；Additionally, in design basis thing
Therefore and beyond design basis accident (including major accident) under, it is not necessary to off-site power and the intervention of operator in factory, rely on native system
The heat in containment can be taken away for a long time, it is ensured that the radioactivity of containment contains function.
Second, in containment during high energy pipeline breaking, in containment, the mixture of steam and air is due to pressure reduction entrance
Constrain pond cools down, it is possible in suppression containment, pressure raises, it is possible to quickly ring under high energy pipeline cut accident in containment
Should, effectively derive the heat in containment, enhance the safety of reactor.
3rd, passive reasonable in design, can greatly avoid thrashing, use two separate modes of looping back
Road, it is ensured that the multiformity of system design and redundancy, improves safety and the economy of nuclear power plant.
Claims (8)
1. a novel passive containment energy management system, it is characterised in that including:
It is arranged in described containment, follows in order to absorb the open type discharging heat in described containment in the case of high energy pipeline breaking
Ring heat-exchanger rig；
It is arranged on the cooling water head tank outside described containment, described cooling water head tank and described open circulation heat-exchanger rig even
Connect formation open circulation loop, described open circulation loop is provided with multiple in order to be turned on and off described open circulation loop
Valve；
It is arranged in described containment, in order to absorb the containment discharging heat in described containment in the case of high energy pipeline breaking
Interior heat-exchanger rig；
The low level cooling water tank being arranged on outside described containment；
It is arranged on the heat-exchanger rig containment in described low level cooling water tank Wai, heat-exchanger rig and described safety in described containment
The outer heat-exchanger rig of shell connects formation closed cycle loop, is provided with multiple in order to be turned on and off on described closed cycle loop
State the valve in closed cycle loop, wherein:
When in containment, pressure rises to containment high pressure setting valve, open described open circulation loop and/or described in close
Valve on formula closed circuit, conducts heat to safety by described open circulation loop and/or described closed cycle loop
In cooling water tank outside shell.
Novel passive containment energy management system the most as claimed in claim 1, it is characterised in that also include: around setting
Putting the constrain pond in containment inner pressure vessel surrounding, described constrain pond connects with the inner atmosphere of containment, wherein:
In containment during high energy pipeline breaking, in containment, the mixture of steam and air is cold owing to pressure reduction enters described constrain pond
But, raise with pressure in suppressing containment.
Novel passive containment energy management system the most as claimed in claim 1 or 2, it is characterised in that described open type is followed
Loop back path includes the first entrance pipe and being connected by described cooling water head tank respectively with described open circulation heat-exchanger rig
One export pipeline；
Valve on described open circulation loop includes be arranged on described first entrance pipe within described containment one
A valve outside individual valve and described containment, and be arranged on inside the described containment on described first export pipeline
A valve and described containment outside a valve.
Novel passive containment energy management system the most as claimed in claim 3, it is characterised in that be arranged on described first
Within described containment valve on entrance pipe and a valve outside described containment are in normally open；
Outside within described containment the valve being arranged on described first export pipeline and described containment one
Valve is in normally off.
Novel passive containment energy management system the most as claimed in claim 1 or 2, it is characterised in that described enclosed is followed
Loop back path includes the second entrance pipe being connected by outer to heat-exchanger rig in described containment and described containment heat-exchanger rig respectively
With the second export pipeline；
Valve on described closed cycle loop includes be arranged on described second entrance pipe within described containment one
A valve outside individual valve and described containment, and be arranged on inside the described containment on described second export pipeline
A valve and described containment outside a valve.
Novel passive containment energy management system the most as claimed in claim 5, it is characterised in that be arranged on described second
Within described containment valve on entrance pipe and a valve outside described containment are in normally open；
Outside within described containment the valve being arranged on described second export pipeline and described containment one
Valve is in normally off.
Novel passive containment energy management system the most as claimed in claim 1, it is characterised in that described low level cooling water
Position set by case is higher than being arranged on the position of heat-exchanger rig in the containment in described containment, to follow as described enclosed
The hot trap of loop back path.
Novel passive containment energy management system the most as claimed in claim 1, it is characterised in that described high-order cooling water
Case is arranged on the elevation location of described containment, using the hot trap as described open circulation loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610801851.5A CN106328223B (en) | 2016-09-05 | 2016-09-05 | A kind of novel passive containment energy management system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610801851.5A CN106328223B (en) | 2016-09-05 | 2016-09-05 | A kind of novel passive containment energy management system |
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| CN106328223A true CN106328223A (en) | 2017-01-11 |
| CN106328223B CN106328223B (en) | 2018-06-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424654A (en) * | 2017-08-01 | 2017-12-01 | 中广核研究院有限公司 | The system and method for exporting heat in containment |
| CN107420552A (en) * | 2017-05-02 | 2017-12-01 | 华北电力大学 | A kind of passive valve |
| CN108346475A (en) * | 2018-01-24 | 2018-07-31 | 中广核研究院有限公司 | A kind of passive constrain system of small-sized heap containment |
| CN109545401A (en) * | 2018-12-19 | 2019-03-29 | 岭东核电有限公司 | A kind of lead base fast reactor out-pile passive residual heat removal system |
| CN109903862A (en) * | 2019-02-20 | 2019-06-18 | 哈尔滨工程大学 | A kind of low pressure natural-circulation capacity lifting scheme |
| CN114023470A (en) * | 2021-09-17 | 2022-02-08 | 中国船舶重工集团公司第七一九研究所 | Passive heat exchange system and reactor system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107420552A (en) * | 2017-05-02 | 2017-12-01 | 华北电力大学 | A kind of passive valve |
| CN107424654A (en) * | 2017-08-01 | 2017-12-01 | 中广核研究院有限公司 | The system and method for exporting heat in containment |
| CN108346475A (en) * | 2018-01-24 | 2018-07-31 | 中广核研究院有限公司 | A kind of passive constrain system of small-sized heap containment |
| CN109545401A (en) * | 2018-12-19 | 2019-03-29 | 岭东核电有限公司 | A kind of lead base fast reactor out-pile passive residual heat removal system |
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| CN114023470B (en) * | 2021-09-17 | 2024-04-16 | 中国船舶重工集团公司第七一九研究所 | Passive heat exchange system and reactor system |
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|---|---|
| CN106328223B (en) | 2018-06-22 |
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