CN105405479B - PWR nuclear power plant integrates passive safety system - Google Patents
PWR nuclear power plant integrates passive safety system Download PDFInfo
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- CN105405479B CN105405479B CN201510751136.0A CN201510751136A CN105405479B CN 105405479 B CN105405479 B CN 105405479B CN 201510751136 A CN201510751136 A CN 201510751136A CN 105405479 B CN105405479 B CN 105405479B
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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
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- 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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Abstract
The invention discloses a kind of PWR nuclear power plant to integrate passive safety system, and it includes multiple passive safety systems and a synthesis water tank that cooling water source is provided for the multiple passive safety system；Comprehensive water tank is arranged in the high position outside containment, including at least three independent partitions being physically isolated, and is connected between different independent partitions by by stages to be opened/closed connection facility；Each independent partitions are provided with least one external connection interface being connected with passive safety system so that whole comprehensive water tank can provide cooling water source for multiple passive safety systems.Compared with prior art, the synthesis water tank of PWR nuclear power plant of the present invention synthesis passive safety system can simultaneously as multiple passive safety systems high-level water source, realize function derived from waste heat after accident, therefore, while npp safety is ensured, the economy of nuclear power plant can be improved.
Description
Technical field
The present invention relates to Nuclear Safety field, it is more particularly related to which a kind of PWR nuclear power plant integrates non-energy
Dynamic security system.
Background technology
As people understand in depth to Fukushima, Japan nuclear accident, the parties concerned propose higher to npp safety performance
Requirement, China also put into effect《New nuclear power factory safety requirements during " 12 "》、《Nuclear safety is prevented and treated with radioactive pollution
" 12 " are planned and the year two thousand twenty long-range objectives》、《Nuclear power plant improves action generic specifications after Fukushima nuclear accident》Deng a system
Row safety requirements.In the safety requirements of these new appearances, the experience and lessons of Fukushima nuclear accident to be drawn are emphasized, for super design
Base operation condition and major accident, prevention and mitigation strategy are proposed from the angle of depth defense, especially to extreme external thing
The aspect of setting up defences of part, it is desirable to depth defense measure is taken, by defending at many levels, caused by preventing and alleviating extreme external event
Major accident.
It is one of three big basic nuclear safety functions from reactor core and Spent Fuel Pool export heat.After Fukushima nuclear accident, disobey
Application of the passive safety system in power supply in the advanced light water reactor nuclear power plant newly researched and developed is relied increasingly to be taken seriously, because
This, in the design of new nuclear power plant, when the extreme accident works such as full factory's alternating current completely loses or normal cold chain completely loses occur
All it is to export reactor core, containment and the heat of Spent Fuel Pool by passive means under condition.These are common passive
Security system includes：Secondary side passive residual heat deriving system；Passive reactor pit flood pattern；Passive containment heat derives
System；Passive Spent Fuel Pool water charging system etc..
Above-mentioned each passive safety system relies on the passive spy such as free convection, Natural Circulation, gravity after accident
Sign carrys out the heat of band reactor core, containment and spentnuclear fuel after accidents happened, ensures the safety of nuclear power plant.They have a common spy
Sign, that is, be required for a high-level water source.In published nuclear power plant, the water tank of each system is all separately provided, so as to
It result in design of nuclear power plant complexity, the problems such as water source difficult arrangement, each water tank can not be fully used, economy is very poor.
In view of this, it can solve the problem that the PWR nuclear power plant of above mentioned problem integrates non-passive safety it is necessory to a kind of provide
System.
The content of the invention
It is an object of the invention to：A kind of PWR nuclear power plant synthesis passive safety system is provided, it makes after accident
Cooling water source is provided for multiple passive safety systems with comprehensive water tank, to solve the integration of nuclear power plant's passive safety system water source
The problem of.
In order to realize foregoing invention purpose, the invention provides a kind of PWR nuclear power plant to integrate passive safety system,
It includes multiple passive safety systems and a synthesis water tank that cooling water source is provided for the multiple passive safety system；
Comprehensive water tank is arranged in the high position outside containment, including at least three independent partitions being physically isolated, different independent partitions it
Between by by stages to be opened/closed connection facility connection；Each independent partitions are provided with least one and passive safety system and connected
The external connection interface connect so that whole comprehensive water tank can provide cooling water source for multiple passive safety systems.
Preferably, the multiple passive safety system includes secondary side passive residual heat deriving system, passive reactor pit
Flood pattern, passive containment thermal conduction system and passive Spent Fuel Pool water charging system, these non-passive safety systems
System provides cooling water source by comprehensive water tank.
Preferably, each independent partitions are provided with and secondary side passive residual heat deriving system and passive containment
The external connection interface of heat derives system connection, at least one independent partitions are provided with to be connected with passive reactor pit flood pattern
External connection interface, at least one independent partitions are provided with the external connection being connected with passive Spent Fuel Pool water charging system
Interface.
Preferably, the secondary side passive residual heat deriving system is that to be equipped with a row passive for each steam generator
Waste heat exports loop, and each row passive residual heat export loop connects from different independent partitions and is provided by it cooling down respectively.
Preferably, it is each for passive residual heat export loop provides cool down independent partitions be provided with bottom one it is cold
Condenser compartment, SPRHR condensers are disposed with condenser compartment；The hot side import pipe and hot side outlet pipe point of SPRHR condensers
Not Shen Chu where independent partitions, and with row SPRHR loops are corresponding connects.
Preferably, the bottom of at least one independent partitions is provided with reactor pit water injection interface, and reactor pit water injection interface is with being reactor pit
And/or the reactor pit waterflood-transmission line connection of reactor pit water injecting tank water filling, to be passive reactor pit water filling system after major accident occurs
System provides water filling/moisturizing.
Preferably, the passive containment thermal conduction system is provided with one or more passive containment heats
Loop is exported, each row containment heat derives loop connects from different independent partitions and is provided by it cooling down respectively.
Preferably, each containment heat derives loop is by evaporator, tedge, containment condensed exterior in containment
The loop that device and down-comer are sequentially connected and formed；Each independent partitions that cooling is provided for containment heat derives loop
A condenser compartment is provided with bottom, containment external condenser is disposed with condenser compartment；Containment external condenser
Inlet tube and outlet stretch out respectively where independent partitions, and with the tedge in corresponding containment heat derives loop and
Down-comer is corresponding to be connected.
Preferably, the bottom of at least one independent partitions is provided with spentnuclear fuel moisturizing interface, spentnuclear fuel moisturizing interface with it is weary
Fuel pit water supply line connects, to be passive Spent Fuel Pool water charging system moisturizing after major accident occurs.
Preferably, the total capacity sum of all independent partitions of the comprehensive water tank is passive remaining not less than secondary side is met
Hot guiding system, Passive containment cooling system, passive reactor pit flood pattern and Spent Fuel Pool gravity water charging system four
The water requirement summation of 24 hours or 72 hours after big security system accident.
Preferably, the comprehensive water tank also includes water tank circulation dosing facility and Stress control facility.
Preferably, the Stress control facility is one by the headroom of comprehensive water tank and the pressure control pipe of atmosphere
Line, Stress control pipeline are provided with breather valve for that can be opened and closed pipeline.
Preferably, divider wall is provided with the comprehensive water tank, the space of water tank bottom is divided into different by divider wall
Independent partitions；Headroom above these independent partitions interconnects, and the cooling water receiving space of bottom is then by be opened/closed
By stages connection facility is connected.
Preferably, each independent partitions are each equipped with water-filling pipeline, flowing line, steam outlet, water level and water temperature prison
Survey instrument.
Preferably, the water-filling pipeline includes normal moisturizing interface and interim moisturizing interface so that independent partitions are normal
The moisturizing of fire cistern is subjected under running situation, the moisturizing at interim water source is subjected to after accident.
Preferably, the steam outlet is arranged on the top of comprehensive water tank, and corresponding with independent partitions, for thing
Therefore discharged when producing a large amount of steam in comprehensive water tank after system puts into operation under operating mode, heat is finally arranged to atmospheric environment.
Preferably, the comprehensive water tank is civil engineering structure, and its casing is made up of reinforced concrete wall panel, and in casing
Wall anchors stainless steel lining back veneer as steel linear.
Preferably, the comprehensive water tank arranges or is arranged in the top of containment around the external wall of upper portion of containment
Compared with prior art, the synthesis water tank of PWR nuclear power plant synthesis passive safety system of the present invention can be made simultaneously
For the high-level water source of multiple passive safety systems, function derived from waste heat after accident is realized, therefore, it is possible to ensure nuclear power
While factory's security, the economy of nuclear power plant is improved.
Brief description of the drawings
With reference to the accompanying drawings and detailed description, to PWR nuclear power plant of the present invention integrate passive safety system and its
Beneficial effect is described in detail.
Fig. 1 is the flow principle schematic that PWR nuclear power plant of the present invention integrates passive safety system.
Fig. 2 is the synthesis water tank subregion and interface diagram that PWR nuclear power plant of the present invention integrates passive safety system.
Embodiment
In order that the purpose of the present invention, technical scheme and its advantageous effects become apparent from, below in conjunction with accompanying drawing and tool
Body embodiment, the present invention will be described in further detail.It should be appreciated that the specific embodiment party described in this specification
Formula is not intended to limit the present invention just for the sake of explaining the present invention.
Fig. 1 and Fig. 2 are referred to, PWR nuclear power plant synthesis passive safety system of the present invention includes multiple non-passive safeties
System and a synthesis water tank 40 that cooling water source is provided for these passive safety systems.
Comprehensive water tank 40 arranges around the external wall of upper portion of containment 10, it include three independent partitions being physically isolated 42,
44th, 46, by stages community installations and by stages connection facility 402.Comprehensive water tank 40 is civil engineering structure, and its casing is by reinforcing bar
Concrete panel is formed, and in cabinet wall anchoring stainless steel lining back veneer as steel linear, to prevent seepage and maintain water quality.It is comprehensive
Divider wall 400 is provided with Heshui case 40, so as to which the space of water tank bottom to be divided into different independent partitions 42,44,46.This
Although being separated between a little independent partitions 42,44,46 by divider wall 400, the headroom of top interconnects, the cooling of bottom
Water receiving space is connected further through by stages to be opened/closed connection facility 402.
Each independent partitions 42,44,46 are each equipped with water-filling pipeline, flowing line, steam outlet 404, water level and water
Warm measuring instrument and one or more external connection interfaces.Water-filling pipeline includes normal moisturizing interface and interim moisturizing interface,
So that independent partitions 42,44,46 are subjected to the moisturizing of fire cistern under normal operating conditions, can receive when necessary after accident
The moisturizing at interim water source.Flowing line is used for draining when water tank maintenance or undesirable roof tank water quality.Steam outlet 404
The top of comprehensive water tank 40 is arranged on, and it is corresponding with independent partitions 42,44,46, after being put into operation for system under accident conditions
Discharged when producing a large amount of steam in comprehensive water tank 40, so that heat is finally arranged to atmospheric environment.External connection interface is used for
It is connected with the passive safety system for receiving its water supply/cooling, to be corresponding passive safety system under accident conditions
Supply water or provide cooling so that comprehensive water tank 40 can play a role as the synthesis water source of all passive safety systems.
The community installations of by stages includes water tank circulation dosing facility, Stress control facility etc..Water tank circulates dosing facility
For stiring and make muddy the cooling water in comprehensive water tank 40 and carrying out dosing and purification.Stress control facility refers at the comprehensive top of water tank 40
One set and the Stress control pipeline 406 of atmosphere, isolation when Stress control pipeline 406 is flat, it is necessary to when can open, use
Pressure when balanced reservoir normally fills draining.Breather valve is installed on Stress control pipeline 406, in power station during normal operation,
When atmospheric temperature change, which causes to integrate the inside and outside pressure difference of water tank 40, exceedes definite value, can open to balance pressure.
By stages connection facility 402 is used to connect each independent partitions 42,44,46, and they usually isolate, and open when needed
Open, such as：In water tank circulation dosing facility open when dosing circulation is stired and make muddy, to realize that different independent partitions 42,44,46 are same
When stir and make muddy；Or opened after the generation of some accidents, to make full use of the water in each independent partitions 42,44,46.
It can be readily appreciated that in other embodiments, comprehensive water tank 40 can also use other arrangements, example
Such as：Position can be arranged in the top of containment 10, and the number of independent partitions can also increase and decrease according to actual conditions.Always
It, if comprehensive water tank 10 is located at the high position outside containment 10, and independent partitions 42,44,46 be enough to be embodied as it is main non-
Active security system supplies water.
Multiple passive safety systems that cooling water source is provided by comprehensive water tank 40 export including secondary side passive residual heat
System, passive reactor pit flood pattern, passive containment thermal conduction system and passive Spent Fuel Pool water charging system.With
Under will be described in integrating water tank 40 each independent partitions 42,44,46 external connection interface facilities, and these are right
Annexation between outer connecting interface and each passive safety system of nuclear power plant.
Comprehensive water tank 40 and the connection of secondary side passive residual heat deriving system：In containment 10, each steam generation
Device 12 has been equipped with row passive residual heat export (SPRHR) loop 120.In order to realize to the cold of each SPRHR loops 120
But, each independent partitions 42,44,46 of the invention are provided with a condenser compartment 48 in bottom, in condenser compartment 48
It is disposed with SPRHR condensers 480.Where the hot side import pipe 482 and hot side outlet pipe 484 of SPRHR condensers 480 stretch out respectively
Independent partitions 42,44,46, and with row SPRHR loops 120 are corresponding connects.In this way, to become SPRHR cold for comprehensive water tank 40
The ultimate heat sink of condenser 480, steam caused by steam generator 12 condense into cold after the heat exchange cooling of SPRHR condensers 480
Condensate refills steam generator 12, forms the residual heat removal loop of an enclosed.It can be readily appreciated that in order to improve heat exchange
Efficiency, each independent partitions 42,44,46 are preferably only connected with a row SPRHR loops 120, therefore, the independence point of comprehensive water tank 40
Area's number should be equal to the quantity of steam generator 12, or the appropriate quantity more than steam generator 12 as standby.
Comprehensive water tank 40 and the connection of passive reactor pit flood pattern：The bottom of an independent partitions 42 is provided with wherein
Reactor pit water injection interface 50, reactor pit water injection interface 50 are used for and the reactor pit water injection pipe for reactor pit 14 and/or the water filling of reactor pit water injecting tank 15
Line 16 connects.After major accident occurs, comprehensive water tank 40 can carry out gravity water filling by reactor pit waterflood-transmission line 16 to reactor pit 14, with
Reactor core fused mass heat is taken away, reduces the temperature of the outer wall of reactor pressure vessel 18, maintains the integrality of pressure vessel 18, is realized
The delay of reactor core fused mass in pressure vessel 18.Certainly, for being provided with the passive heap of reactor pit water injecting tank 15 in containment 10
Cheat for flood pattern, can also be the moisturizing of reactor pit water injecting tank 15 that empties after accident by reactor pit water injection interface 50, to ensure
The realization of reactor pit water-filling function.It can be readily appreciated that in comprehensive water tank 40 can also two or more independent partitions 42,
44th, 46 bottom set reactor pit water injection interface, with ensure some reactor pit water injection interface damage when, be still able to as passive heap
Cheat flood pattern water filling/moisturizing.
The connection of comprehensive water tank 40 and passive containment thermal conduction system：Passive containment thermal conduction system is set
One or more passive containment heat derives loops are equipped with, each containment heat derives loop is by containment
The loop that evaporator 200, tedge 202, containment external condenser 520 and down-comer 204 are sequentially connected and formed.In order to
The cooling to each containment heat derives loop is realized, each independent partitions 42,44,46 of the invention are provided with bottom
One condenser compartment 52, containment external condenser 520 are arranged in condenser compartment 52.Condenser compartment 52 and condenser every
Between 48 can be located at the same independent partitions 42,44,46 of independent partitions 42,44,46 or different, but the two is independent compartment,
That is even if the SPRHR condensers 480 of containment external condenser 520 and secondary side passive residual heat deriving system are by same
The water extraction cooling of independent partitions 42,44,46 is but, it is also desirable in different condenser compartments.Containment external condenser 520
Inlet tube 522 and outlet 524 stretch out the independent partitions 42,44,46 at place respectively, and are returned with corresponding containment heat derives
The tedge 202 and down-comer 204 on road connect.In this way, comprehensive water tank 40 becomes the final heat of containment external condenser 520
Trap, steam caused by evaporator 200 is after the heat exchange cooling of containment external condenser 520 in containment, and regelation is into condensation
Current return evaporator 200 in containment, form the residual heat removal loop of a closing.The bottom of evaporator 200 can in containment
To set apparatus for collecting condensed water 22, for collect in containment 10 by containment heat derives system condensing into condensate, and
The reactor pit water injecting tank 15 being injected into containment 10.It can be readily appreciated that in order to improve heat exchange efficiency, each independent partitions
42nd, 44,46 preferably only it is connected with a containment heat derives loop, therefore, the independent partitions number of comprehensive water tank 40 should
Equal to the quantity in containment heat derives loop, or the appropriate quantity more than containment heat derives loop is as standby.
The connection of comprehensive water tank 40 and passive Spent Fuel Pool water charging system：The bottom of an independent partitions 44 wherein
Spentnuclear fuel moisturizing interface 54 is provided with, spentnuclear fuel moisturizing interface 54 is used to be connected with Spent Fuel Pool water supply line 24.Serious thing
Therefore after occurring, comprehensive water tank 40 can be that Spent Fuel Pool 26 carries out moisturizing, spentnuclear fuel water by Spent Fuel Pool water supply line 24
Steam caused by pond 26, through smoke stack emission, spentnuclear fuel is taken away by moisturizing evaporation mode by the discharge duct on fuel hall top
Decay heat.Certainly, weary combustion can also be set in the bottom of two or more independent partitions 42,44,46 in comprehensive water tank 40
Expect moisturizing interface, with ensure some spentnuclear fuel moisturizing interface damage when, be still able to as the moisturizing of Spent Fuel Pool 26.
Because comprehensive water tank 40 is used as the synthesis water source of passive safety system, therefore its all independent partitions
42nd, 44,46 total capacity sum is at least required to meet secondary side passive residual heat deriving system, passive containment cooling
After four big security system accident of system, passive reactor pit flood pattern and Spent Fuel Pool gravity water charging system in certain time
The water requirement summation of (24 hours or 72 hours), include but is not limited to：The moisturizing stage needs water again outside passive reactor pit water filling shell
Amount；The water requirement of passive Spent Fuel Pool moisturizing (considers, spentnuclear fuel water according to the maximum heating load of accidental conditions
There is certain self-holding ability in pond due to itself possessing larger water loading amount)；The water requirement of passive containment thermal conduction system
(evaporation capacity).
The operation of PWR nuclear power plant synthesis passive safety system of the present invention and control situation are as follows：
1) during normal operation, each passive safety system is in stand-by state to unit, comprehensive water tank 40 be in every
From state, without performing security function, but need periodically to purify comprehensive water tank 40, to maintain water quality；
2) when the not degraded beyond design basis accident of the reactor cores such as generation station blackout, lost if emergency feedwater supply system starts
Effect, then secondary side passive residual heat deriving system is put into discharge the heat of primary Ioops, now, comprehensive water tank 40 is that secondary side is non-
Active waste heat guiding system provides cooling；
If 3) primary Ioops occur in containment 10 or secondary circuit pipeline cut, reactor core heat are exported in containment 10,
The passive heat derives system cooling containment of the containment that then comes into operation, now, comprehensive water tank 40 is that the passive heat of containment is led
Go out system and cooling is provided；
4) under above-mentioned operating mode, if the cooling way forfeiture that Spent Fuel Pool is active, in order to take the decay heat of spentnuclear fuel out of, is protected
The safety of Spent Fuel Pool is demonstrate,proved, then needs to put into passive Spent Fuel Pool water charging system, is spentnuclear fuel by comprehensive water tank 40
The moisturizing of pond 26；
5) when full factory's alternating current occur the extreme accident conditions such as completely losing, if reactor core degrades, into major accident operating mode,
When core exit temperature is more than 650 DEG C, the outlet isolating valve of the passive reactor pit water injecting tank 15 in containment 10 should be opened, is opened
Move passive reactor pit flood pattern；Legacy systems inject reactor pit 14 with larger flow, and reach the water filling of requirement in 30 minutes
Highly, system is transferred to low discharge injection stage afterwards；If water exhausts in reactor pit water injecting tank 15, comprehensive water tank 40 and peace are opened
Reactor pit waterflood-transmission line 16 in full shell between reactor pit water injecting tank 15, the moisturizing again of reactor pit water injecting tank 15 is realized using gravity, and then
Realize the low discharge moisturizing of reactor pit 14；Under such operating mode, the heat in containment 10 passes through passive containment heat derives system
Command out；
6) comprehensive water tank 40 divides for multiple independent partitions 42,44,46, when some independent partitions is broken down, other
Independent partitions are unaffected；When the water level of some independent partitions reduces excessive, by stages connection facility can be opened
402 obtain appropriate supplement from the higher independent partitions of other water levels.
Compared with prior art, PWR nuclear power plant synthesis passive safety system of the present invention at least has advantages below：
1) security of nuclear power plant is improved：(full factory's alternating current is complete under the extreme accident conditions of similar Fukushima nuclear accident
The major accident operating mode that the beyond design basis accident such as full forfeiture or normal cold chain forfeiture and these accidents trigger), without extra
External source and power supply intervention, passive safety system synthesis water tank 40 can be just cooling reactor core, containment 10 and weary
The passive safety system of fuel pit provides required cooling water source, and reactor core, containment are taken out of by passive safety system
10 and the heat of Spent Fuel Pool, the reliability and nuclear power plant for further increasing each passive safety system tackle extreme work
The ability of condition, largely prevent nuclear power plant from occurring " steep side effect " under extreme accident, it is ensured that unit after accident
Safety；
2) economy of nuclear power plant has been taken into account：The water source that the present invention realizes each passive safety system is integrated, and is avoided
The problems such as each passive safety system is separately provided the complex designing brought in pond, water wastes, difficult arrangement, has one
Fixed economy；
3) the operation operation of nuclear power plant is not influenceed：The present invention does not influence the operation operation of nuclear power plant during normal operation, only
Related system is started by operator under super design reference operating mode, you can put into operation, and the operation of system can control oneself；
4) making full use of for Quan Chang water sources is realized：Other water sources of plant area such as the synthesis water tank 40 and fire cistern of the present invention
Between interface is set, the preferable integration at Quan Chang water sources can be accomplished and made full use of.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out appropriate change and modification.Therefore, the invention is not limited in embodiment disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification
In used some specific terms, but these terms are merely for convenience of description, do not form any restrictions to the present invention.
Claims (17)
1. a kind of PWR nuclear power plant integrates passive safety system, including multiple passive safety systems；It is characterized in that：Also
The synthesis water tank of cooling water source is provided including one for the multiple passive safety system；Comprehensive water tank is arranged in outside containment
A high position, including at least three independent partitions being physically isolated, connected by by stages to be opened/closed between different independent partitions
Facility connects；Each independent partitions are provided with least one external connection interface being connected with passive safety system so that
Whole comprehensive water tank can provide cooling water source for multiple passive safety systems；The multiple passive safety system includes two
Secondary side passive residual heat guiding system, passive reactor pit flood pattern, passive containment thermal conduction system and passive weary
Fuel pit water charging system, these passive safety systems provide cooling water source by comprehensive water tank.
2. PWR nuclear power plant according to claim 1 integrates passive safety system, it is characterised in that：Each independence point
Area be provided be connected with secondary side passive residual heat deriving system and passive containment thermal conduction system externally connect
Connection interface, at least one independent partitions are provided with the external connection interface being connected with passive reactor pit flood pattern, at least one
Independent partitions are provided with the external connection interface being connected with passive Spent Fuel Pool water charging system.
3. PWR nuclear power plant according to claim 1 or 2 integrates passive safety system, it is characterised in that：Described two
Secondary side passive residual heat guiding system is that each steam generator is equipped with row passive residual heat export loop, respectively arranges non-energy
Dynamic waste heat export loop connects from different independent partitions and is provided by it cooling down respectively.
4. PWR nuclear power plant according to claim 3 integrates passive safety system, it is characterised in that：Each is non-energy
The independent partitions that dynamic waste heat export loop provides cooling are provided with a condenser compartment in bottom, are arranged in condenser compartment
There are SPRHR condensers；The hot side import pipe and hot side outlet pipe of SPRHR condensers stretch out respectively where independent partitions, and with
One row SPRHR loops are corresponding to be connected.
5. PWR nuclear power plant according to claim 1 or 2 integrates passive safety system, it is characterised in that：At least one
The bottom of individual independent partitions is provided with reactor pit water injection interface, and reactor pit water injection interface is with being reactor pit and/or reactor pit water injecting tank water filling
Reactor pit waterflood-transmission line connects, to provide water filling/moisturizing after major accident occurs for passive reactor pit flood pattern.
6. PWR nuclear power plant according to claim 1 or 2 integrates passive safety system, it is characterised in that：It is described non-
Active containment heat derives system is provided with one or more passive containment heat derives loops, each row containment heat
Amount export loop connects from different independent partitions and is provided by it cooling down respectively.
7. PWR nuclear power plant according to claim 6 integrates passive safety system, it is characterised in that：Each containment
Heat derives loop is to be sequentially connected and formed by evaporator, tedge, containment external condenser and down-comer in containment
Loop；Each independent partitions that cooling is provided for containment heat derives loop are provided with a condenser in bottom
Compartment, containment external condenser is disposed with condenser compartment；The inlet tube and outlet of containment external condenser stretch out respectively
The independent partitions at place, and connection corresponding with the tedge in corresponding containment heat derives loop and down-comer.
8. PWR nuclear power plant according to claim 1 or 2 integrates passive safety system, it is characterised in that：At least one
The bottom of individual independent partitions is provided with spentnuclear fuel moisturizing interface, and spentnuclear fuel moisturizing interface is connected with Spent Fuel Pool water supply line,
To be passive Spent Fuel Pool water charging system moisturizing after major accident occurs.
9. PWR nuclear power plant according to claim 1 or 2 integrates passive safety system, it is characterised in that：It is described comprehensive
The total capacity sum of all independent partitions of Heshui case is not less than and meets secondary side passive residual heat deriving system, non-passive safety
24 hours after four big security system accident of shell cooling system, passive reactor pit flood pattern and Spent Fuel Pool gravity water charging system
Or the water requirement summation of 72 hours.
10. PWR nuclear power plant according to claim 1 or 2 integrates passive safety system, it is characterised in that：It is described comprehensive
Heshui case also includes water tank circulation dosing facility and Stress control facility.
11. PWR nuclear power plant according to claim 10 integrates passive safety system, it is characterised in that：The pressure
Control facility for one by the headroom of comprehensive water tank and the Stress control pipeline of atmosphere, Stress control pipeline is to be opened and closed
Pipeline, and breather valve is installed.
12. PWR nuclear power plant according to claim 1 or 2 integrates passive safety system, it is characterised in that：It is described comprehensive
Divider wall is provided with Heshui case, the space of water tank bottom is divided into different independent partitions by divider wall；These independent partitions
The headroom of top interconnects, and the cooling water receiving space of bottom then connects facility by by stages to be opened/closed and is connected.
13. PWR nuclear power plant according to claim 1 or 2 integrates passive safety system, it is characterised in that：It is each only
Vertical subregion is each equipped with water-filling pipeline, flowing line, steam outlet, water level and water temperature detection instrument.
14. PWR nuclear power plant according to claim 13 integrates passive safety system, it is characterised in that：The water-filling
Pipeline includes normal moisturizing interface and interim moisturizing interface so that independent partitions are subjected to fire cistern under normal operating conditions
Moisturizing, the moisturizing at interim water source is subjected to after accident.
15. PWR nuclear power plant according to claim 14 integrates passive safety system, it is characterised in that：The steam
Floss hole is arranged on the top of comprehensive water tank, and corresponding with independent partitions, comprehensive after being put into operation for system under accident conditions
Discharged when a large amount of steam are produced in water tank, heat is finally arranged to atmospheric environment.
16. PWR nuclear power plant according to claim 1 or 2 integrates passive safety system, it is characterised in that：It is described comprehensive
Heshui case is civil engineering structure, and its casing is made up of reinforced concrete wall panel, and is made in cabinet wall anchoring stainless steel lining back veneer
For steel linear.
17. PWR nuclear power plant according to claim 1 or 2 integrates passive safety system, it is characterised in that：It is described comprehensive
Heshui case arranges or is arranged in the top of containment around the external wall of upper portion of containment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751136.0A CN105405479B (en) | 2015-11-06 | 2015-11-06 | PWR nuclear power plant integrates passive safety system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751136.0A CN105405479B (en) | 2015-11-06 | 2015-11-06 | PWR nuclear power plant integrates passive safety system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105405479A CN105405479A (en) | 2016-03-16 |
| CN105405479B true CN105405479B (en) | 2017-11-17 |
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| CN105741890B (en) * | 2016-04-15 | 2018-09-11 | 新核（北京）能源科技有限公司 | Presurized water reactor passive resistance protection system and pressure difference Self force valve |
| CN107464590A (en) * | 2017-08-23 | 2017-12-12 | 中国船舶重工集团公司第七〇九研究所 | Marine PWR Passive residual heat removal system |
| CN108511090A (en) * | 2018-03-08 | 2018-09-07 | 中国核电工程有限公司 | A kind of cooling water tank component of nuclear power plant's secondary side passive cooling system |
| CN113661547B (en) * | 2020-01-07 | 2023-10-31 | 中广核研究院有限公司 | Nuclear power plant serious accident handling safety system and control method thereof |
| CN111075235B (en) * | 2020-01-10 | 2021-03-12 | 中广核工程有限公司 | Construction method of passive water tank of nuclear power plant |
| CN112164482B (en) * | 2020-09-25 | 2023-09-29 | 中国核电工程有限公司 | Comprehensive thermal hydraulic test device for containment |
| CN113089777B (en) * | 2021-03-26 | 2022-07-12 | 中广核工程有限公司 | Modular annular concrete stainless steel water tank and construction method thereof |
| CN113140338A (en) * | 2021-03-26 | 2021-07-20 | 中广核工程有限公司 | Emergency waste heat discharging and water supplementing system for nuclear power plant |
| CN113380433B (en) * | 2021-05-07 | 2022-10-18 | 苏州热工研究院有限公司 | Passive special safety system and water supply system for nuclear power plant |
| CN113314238B (en) * | 2021-05-10 | 2023-10-24 | 中国核电工程有限公司 | Three-generation nuclear power station reactor plant, arrangement method thereof and nuclear power station |
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| CN102163469B (en) * | 2011-02-14 | 2014-04-30 | 中国核电工程有限公司 | Nuclear power station non-active engineering safety system |
| CN202102728U (en) * | 2011-05-06 | 2012-01-04 | 中科华核电技术研究院有限公司 | Safety system used for guaranteeing safety of nuclear power plant |
| CN102522127B (en) * | 2011-12-23 | 2014-07-30 | 中国核电工程有限公司 | Passive containment thermal conduction system |
| JP2013224889A (en) * | 2012-04-23 | 2013-10-31 | Toshiba Corp | High pressure core injection system |
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| CN102881342A (en) * | 2012-09-27 | 2013-01-16 | 中国核电工程有限公司 | Active and passive combined heat removal device for containment |
| CA2887741C (en) * | 2014-04-10 | 2018-05-29 | Hitachi-Ge Nuclear Energy, Ltd. | Reactor containment cooling system and nuclear power plant |
| CN104464846A (en) * | 2014-12-03 | 2015-03-25 | 中广核工程有限公司 | Passive high-order emergency cooling water supply system for nuclear power plant |
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