CN107945893B - A kind of nuclear power plant's emergence core stacking cool system - Google Patents
A kind of nuclear power plant's emergence core stacking cool system Download PDFInfo
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- CN107945893B CN107945893B CN201710931494.9A CN201710931494A CN107945893B CN 107945893 B CN107945893 B CN 107945893B CN 201710931494 A CN201710931494 A CN 201710931494A CN 107945893 B CN107945893 B CN 107945893B
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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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- 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 kind of nuclear power plant's emergence core stacking cool system, which specifically includes high-pressure safety injection pump, low pressure safety injection pump, peace water injecting tank, automatically unloading system, voltage-stablizer, is directly injected into pipeline, residual heat removal exchanger, pressure vessel and containment suppression pool；Wherein, automatically unloading system, containment suppression pool, voltage-stablizer, pressure vessel and be directly injected into pipeline be arranged in containment, high-pressure safety injection pump, low pressure safety injection pump, peace water injecting tank, residual heat removal exchanger be arranged outside containment.In terms of existing technologies, the present invention merges low pressure peace note with Residual heat removal function, simplifies system configuration, improves economy.Suppression pool is set in containment, cancels containment sump setting, substantially reduces the configuration of containment volume and recirculating filter.Pacify water injecting tank outside setting containment, eliminates because of the problems such as material-changing water tank bring containment penetration increases, and pipeline arrangement is complicated in setting containment.
Description
Technical field
The present invention relates to Nuclear Power Plant Equipment technical fields, and in particular to a kind of nuclear power plant's emergence core stacking cool system.
Background technique
Safety injection system, which is called, does emergence core stacking cool system, is mainly used under various hypothetical accident operating conditions, really
It protects the shutdown of reactor emergency safety and residual heat of nuclear core is discharged for a long time.Currently, being provided with peace in most large pressurized water reactors nuclear power plant
Full injected system to carry out emergency Core cooling under accident conditions, and maintains primary Ioops water loading amount.To realize above-mentioned function,
Safety injection system must decline situation according to primary Ioops system pressure when accident, inject under different stress levels.
Safety injection system is made of three subsystems in the prior art:
High-pressure safety injection subsystem: boric acid solution is injected into reactor coolant loop using high-pressure safety injection pump.
Low pressure peace note subsystem: it is directly injected into stage and long-term cooling stage after accident, two low pressure safety injection pumps can incite somebody to action
Boron water is injected into reactor coolant loop to cool down reactor core.
Middle pressure peace note subsystem: being a passive system, including three independent safety injection tanks.During accident, work as reaction
When the pressure of reactor coolant system drops below safety injection tank pressure, the boron water in safety injection tank is automatically injected in primary Ioops.
Such as a kind of safety injection system disclosed in Chinese patent CN200910108230.9, such as Figure of description Fig. 1 institute
Show, including high-pressure safety injection pump, low pressure safety injection pump and safety injection tank, further includes the material-changing water tank for accommodating peace water filling.It is wherein described
Material-changing water tank is located in containment；The safety injection tank is connected to direct pressure container injection pipe by being provided with the pipeline of isolating valve
On line；By being provided with, the pipeline of isolating valve is connected to the material-changing water tank to the high-pressure safety injection pump and pressure vessel is directly injected into
Between pipeline；By being provided with, the pipeline of isolating valve is connected to the material-changing water tank to the low pressure safety injection pump and pressure vessel is direct
It injects between pipeline.It further include automatically unloading subsystem, the automatically unloading subsystem is connected to the material-changing water tank and pressure stabilizing
Between device.Safety injection system disclosed in the Chinese patent has the following problems: 1) its high-pressure safety injection and low pressure peace note are using female
Control injection, i.e., as shown in Figure 1, the injection pipeline of safety injection pump outlet is connected with each other, every pump can be injected into any injection
Point, injection pipeline increase, and secondly material-changing water tank is arranged in containment, as can be seen from Figure 1 the company of system and material-changing water tank 207
It connects and needs through containment, containment penetration will be arranged in every pipeline through containment, run through so as to cause containment
Part increases；2) system configuration is complicated, since the safety injection system is injected using piping-main scheme, causes to inject pipeline and accordingly set
The increase of standby quantity, while the assignment of traffic that will lead to each decanting point is uneven, for this purpose, every injection pipeline is both needed to setting flow
Regulating valve periodic adjustment；3) for penetration piece there are certain disclosure risk, quantity, which increases, can directly result in containment as third
The failure risk of road barrier increases, and security of system is to be improved.
In conclusion safety injection system in the prior art exists, configuration is complicated, have a single function and economy is poor
The problems such as.Therefore, how to simplify the configuration of emergence core stacking cool system in nuclear power plant, reduce containment penetration quantity, improve
Its security of system and its economy of improvement, become urgent problem to be solved.
Summary of the invention
It is an object of the invention to aiming at the shortcomings in the prior art, propose a kind of configuration is simple, security of system is higher,
The better nuclear power plant's emergence core stacking cool system of economy.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of nuclear power plant's emergence core stacking cool system, including high-pressure safety injection pump, low pressure safety injection pump, peace water injecting tank, unload automatically
Pressure system and voltage-stablizer, nuclear power plant's emergence core stacking cool system further include that residual heat removal exchanger and containment are constrain
Pond；
The high-pressure safety injection pump by be provided with the pipeline of isolating valve and check-valves be connected to the containment suppression pool and
It is directly injected between pipeline；
The low pressure safety injection pump is connected to the containment suppression pool and Residual heat removal by being provided with the pipeline of isolating valve
Between heat exchanger；
The peace water injecting tank by be provided with the pipeline of isolating valve respectively with the high-pressure safety injection pump, the low pressure safety injection pump
Connection；
The automatically unloading system is arranged between voltage-stablizer and containment suppression pool；
The suppression pool discharges coolant for accommodating recycling water and primary loop depressurization.
As the preferred technical solution of the present invention, the high-pressure safety injection pump is by being provided with the pipeline of isolating valve and check-valves
It is connected to the peace water injecting tank and is directly injected between pipeline；The low pressure safety injection pump is connected by being provided with the pipeline of isolating valve
Between peace water injecting tank and the residual heat removal exchanger.
As the preferred technical solution of the present invention, the containment suppression pool is arranged in containment, and the containment presses down
It presses and is equipped with wet-well and recirculating filter in pond, be provided with sprinkler in the wet-well.
As the preferred technical solution of the present invention, bottom in the pond of containment suppression pool is arranged in the recirculating filter
Portion, the recirculating filter are connected by being provided with the pipeline of isolating valve with high-pressure safety injection pump, low pressure safety injection pump.
As the preferred technical solution of the present invention, automatically unloading system one end passes through the pipeline of setting isolating valve and steady
Depressor headroom is connected, and the other end is connected by the way that the pipeline of regulating valve is arranged with the sprinkler.
As the preferred technical solution of the present invention, the automatically unloading system includes several series, the automatically unloading
What pressure relief valve in parallel is each series of system include, and every level-one includes several concatenated valves.
As the preferred technical solution of the present invention, the low pressure safety injection pump is connected to one by being provided with the pipeline of isolating valve
Between circuit lines hot arc and residual heat removal exchanger；The residual heat removal exchanger is by being provided with isolating valve and non-return
The pipeline of valve is connected to low pressure safety injection pump and is directly injected between pipeline.
As the preferred technical solution of the present invention, the low pressure safety injection pump include mutually independent first low pressure safety injection pump and
Second low pressure safety injection pump；The high-pressure safety injection pump includes mutually independent first high-pressure safety injection pump and the second high-pressure safety injection pump；Institute
Stating residual heat removal exchanger includes mutually independent first residual heat removal exchanger and the second residual heat removal exchanger.
As the preferred technical solution of the present invention, the first low pressure safety injection pump is connected by being provided with the pipeline of isolating valve
Between primary Ioops pipeline hot arc and the first residual heat removal exchanger；First residual heat removal exchanger is by being provided with
The pipeline of isolating valve and check-valves is connected to the first low pressure safety injection pump and is directly injected between pipeline.
As the preferred technical solution of the present invention, the second low pressure safety injection pump is connected by being provided with the pipeline of isolating valve
Between primary Ioops pipeline hot arc and the second residual heat removal exchanger；Second residual heat removal exchanger is by being provided with
The pipeline of isolating valve and check-valves is connected to the second low pressure safety injection pump and is directly injected between pipeline.
Compared with prior art, the invention has the following advantages:
1) automatically unloading system is set, and primary Ioops reduction of blood pressure in high-speed after realization accident increases peace beam amount and is quickly cooled down heap
Core improves safety；
2) low pressure peace note merges with Residual heat removal function, simplifies system configuration, improves economy；
3) suppression pool is set in containment, cancels containment sump setting, substantially reduces containment volume and recycled
The configuration of filter；
4) pacify water injecting tank outside setting containment, eliminate because of material-changing water tank bring containment penetration in setting containment
Increase, pipeline arranges the problems such as complicated.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of safety injection system of the prior art；
Fig. 2 is a kind of structural schematic diagram of nuclear power plant's emergence core stacking cool system of the present invention.
In figure, the first high-pressure safety injection pump 11, the second high-pressure safety injection pump 12, the first low pressure safety injection pump 21, the second low pressure peace note
Pump 22, peace water injecting tank 3, automatically unloading system 4, residual heat removal exchanger 5, containment suppression pool 6, recirculating filter 61,
Isolating valve 7, peace water injecting tank water intaking pipeline isolating valve 71, containment suppression pool water intaking pipeline isolating valve 72, voltage-stablizer 8, pressure are held
Device 9, check-valves 10.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details understands the embodiment of the present invention to cut thoroughly.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Embodiment 1
The present embodiment is a kind of nuclear power plant's emergence core stacking cool system, after system structure diagram is as shown in Fig. 2, improve
Emergence core stacking cool system compared with the prior art systems, still use high, medium and low three stress levels under safety note
Mode is penetrated, but the present embodiment enormously simplifies system configuration.Specifically, nuclear power plant's emergence core stacking cool system packet of the present embodiment
High-pressure safety injection pump, low pressure safety injection pump, peace water injecting tank 3, automatically unloading system (ADS) 4, voltage-stablizer 8, pressure vessel 9 and straight are included
Connect injection pipeline, residual heat removal exchanger 5 and containment suppression pool 6, wherein the automatically unloading system (ADS) 4, safety
Shell suppression pool 6, voltage-stablizer 8, pressure vessel 9 and be directly injected into pipeline be arranged in containment, the high-pressure safety injection pump, low pressure peace
Note pump, peace water injecting tank 3, residual heat removal exchanger 5 are arranged outside containment.
In the present embodiment, the high-pressure safety injection pump, low pressure safety injection pump, peace water injecting tank 3, automatically unloading system 4, Residual heat removal
Connection relationship between heat exchanger 5, containment suppression pool 6, voltage-stablizer 8 and pressure vessel 9 is as shown in Fig. 2, specifically, high pressure
Safety injection pump is connected to the containment suppression pool 6 by being provided with the pipeline of isolating valve 7 and check-valves 10 and is directly injected into pipeline
Between；The high-pressure safety injection pump is also connected to the peace water injecting tank 3 and straight by being provided with the pipeline of isolating valve 7 and check-valves 10
It connects between injection pipeline；Wherein, which is arranged outside containment, and the check-valves 10 is arranged in containment.
In the present embodiment, the low pressure safety injection pump is connected to 3 He of peace water injecting tank by being provided with the pipeline of isolating valve 7
Between residual heat removal exchanger 5, and the low pressure safety injection pump is connected by being provided with isolating valve 7 with the pipeline of check-valves 10
Between the containment suppression pool 6 and residual heat removal exchanger 5.Wherein, which is arranged outside containment, described
Check-valves 10 is arranged in containment.
In the present embodiment, the peace water injecting tank 3 and containment suppression pool 6 are the high-pressure safety injection pump and low pressure peace
The water intaking source of pump is infused, specifically, the present embodiment system is according to level condition in primary Ioops pressure condition and the peace water injecting tank
It is used as water intaking source to choose peace water injecting tank 3 or containment suppression pool 6, and pacifies and is provided with peace water filling on water injecting tank water intaking pipeline
Case fetch water pipeline isolating valve 71, containment suppression pool water intaking pipeline on be provided with containment suppression pool water intaking pipeline isolating valve 71.
Wherein, the isolating valve 7, peace water injecting tank water intaking pipeline isolating valve 71 and containment suppression pool water intaking pipeline isolating valve 72 are identical
The isolating valve of structure.Wherein, the connection of pressure vessel 9 for being directly injected into pipeline and nuclear power plant, the suppression pool is for accommodating
It recycles water and primary loop depressurization discharges coolant.
In the present embodiment, the automatically unloading system 4 is arranged between voltage-stablizer 8 and containment suppression pool 6, specifically,
The automatically unloading system 4 is that one end is connected by the way that the pipeline of isolating valve is arranged with 8 headroom of voltage-stablizer, and the other end is by setting
It sets the pipeline of regulating valve and the sprinkler is connected.
In the present embodiment, the automatically unloading system 4(ADS) it include several series, the automatically unloading system 4 is each
What pressure relief valve in parallel is series include, and every level-one includes several concatenated valves.
When adding automatically unloading system 4- and being directly injected into the primary Ioops cut accident such as line fracture, system puts into operation height
It presses safety injection pump to carry out Safety Injection to primary Ioops, because primary Ioops pressure is higher, pacifies beam amount majority through cut by-pass flow, can not inject
Reactor core；By opening automatically unloading system 4(ADS) pressure relief valve, the headroom of voltage-stablizer 8 and suppression pool wet-well are together with one time
Road steam is through automatically unloading system 4(ADS) release pipeline is discharged into suppression pool, and it realizes that primary Ioops pressure quickly reduces, pacifies beam amount
Reactor core is injected, guarantees reactor core water loading amount and cooling reactor core, improves npp safety；Meanwhile by adding automatically unloading system
4, effectively pacify the increase of beam amount after accident, the configuration of safety injection pump flow can be reduced, improve nuclear power plant's economy.
In the present embodiment, the containment suppression pool 6 is arranged in containment, and is equipped in the containment suppression pool 6 wet
Well and recirculating filter 61 are provided with sprinkler in the wet-well.The setting of recirculating filter 61 is constrain in containment
Bottom in the pond in pond 6, the recirculating filter 61 are infused by the pipeline and high-pressure safety injection pump, low pressure peace for being provided with isolating valve 71
Pump is connected, which is arranged outside containment.Containment suppression pool 6 is provided in the present embodiment instead of conventional peace
Full shell melt pit executes the recycling that coolant is leaked under accident conditions, greatly reduces containment volume；Meanwhile the cloth in suppression pool
Recirculating filter 61 is set, comparatively safe shell melt pit can be greatly decreased recirculating filter 61 and configure quantity, improve nuclear power plant's warp
Ji property.
In the present embodiment, the low pressure safety injection pump is connected to primary Ioops pipeline hot arc by being provided with the pipeline of isolating valve 7
Between residual heat removal exchanger 5；The residual heat removal exchanger 5 is by being provided with the pipe of isolating valve 7 and check-valves 10
Road is connected to low pressure safety injection pump and is directly injected between pipeline, which is arranged in containment.
When the low pressure safety injection pump executes peace pouring functions, pass through the connecting pipeline with peace water injecting tank 3 or containment suppression pool 6
It fetches water and carries out Safety Injection to primary Ioops；When the low pressure safety injection pump executes Residual heat removal function, by hot with primary Ioops pipeline
The connecting pipeline water intaking of section, returns to primary Ioops after downstream residual heat removal exchanger 5 is cooling.Low pressure peace note and Residual heat removal function
It can merge, cancel the separate configurations of residual heat removal system, simplify safety-related systems configuration, improve nuclear power plant's economy.
The present embodiment can be when cut accident occurs for nuclear power plant's primary Ioops, according to the feelings of primary Ioops system pressure decline
Condition is realized and is filled the water under different stress levels to reactor core.Under primary Ioops large break accident conditions, believe once receiving peace note
Number, system will execute following operation:
High-pressure safety injection pump and low pressure safety injection pump start automatically, and peace water injecting tank water intaking pipeline isolating valve 71 automatically opens, simultaneously
It triggers automatically unloading system 4 to start, carries out primary Ioops reduction of blood pressure in high-speed.When primary Ioops pressure reduction to high-pressure safety injection pump injection pressure
When following, high-pressure safety injection pump is fetched water from peace water injecting tank 3, carries out Safety Injection to primary Ioops；When primary Ioops pressure reduction to middle pressure
When pacifying 3 pressure of water injecting tank or less, middle pressure peace water injecting tank 3 carries out big flow injection from trend primary Ioops by nitrogen pressure；When one time
When below road pressure reduction to low pressure safety injection pump injection pressure, low pressure safety injection pump from peace water injecting tank 3 fetch water, start to primary Ioops into
Row injection.
When peace water injecting tank 3 reaches low liquid level, automatic trigger containment suppression pool water intaking pipeline isolating valve 72 is opened, peace note
Water tank water intaking pipeline isolating valve 71 is closed, and high-pressure safety injection pump and low pressure safety injection pump start to fetch water from containment suppression pool 6, into length
Phase recycles injection stage.Meanwhile by low pressure safety injection pump downstream residual heat removal exchanger 5, the heat in containment is taken out of.
Embodiment 2
Embodiment 2 is further to install pump and high-pressure safety injection pump and Residual heat removal to low pressure on the basis of embodiment 1
The quantity and its arrangement of heat exchanger 5 carry out further preferred design, but low pressure installation pump and high-pressure safety injection pump and waste heat
Discharge heat exchanger 5 is not limited to the design of the present embodiment.
In the present embodiment, first high-pressure safety injection pump 11, the second high-pressure safety injection pump 12, the first low pressure safety injection pump 21,
Two low pressure safety injection pumps 22, peace water injecting tank 3, automatically unloading system 4, the first residual heat removal exchanger 5, the second Residual heat removal heat are handed over
Connection relationship between parallel operation 5, containment suppression pool 6, voltage-stablizer 8 and pressure vessel 9 is as shown in Fig. 2, specifically, the low pressure
Safety injection pump includes mutually independent first low pressure safety injection pump 21 and the second low pressure safety injection pump 22；The high-pressure safety injection pump includes mutual
Independent first high-pressure safety injection pump 11 and the second high-pressure safety injection pump 12；The residual heat removal exchanger 5 includes mutually independent
First residual heat removal exchanger 51 and the second residual heat removal exchanger 52；The pipeline that is directly injected into includes the first direct note
Enter pipeline and second and be directly injected into pipeline, first, which is directly injected into pipeline and second, is directly injected into pipeline and holds with the pressure of nuclear power plant
Device 9 connects.
In the present embodiment, the first low pressure safety injection pump 21 is connected to primary Ioops pipe by being provided with the pipeline of isolating valve 7
Between road hot arc and the first residual heat removal exchanger 51；First residual heat removal exchanger 51 is by being provided with isolating valve
7 and the pipeline of check-valves 10 be connected to the first low pressure safety injection pump 21 and first and be directly injected between pipeline.The second low pressure peace
Note pump 22 by be provided with the pipeline of isolating valve 7 be connected to primary Ioops pipeline hot arc and the second residual heat removal exchanger 52 it
Between；Second residual heat removal exchanger 52 is connected to the second low pressure by being provided with the pipeline of isolating valve 7 and check-valves 10
Safety injection pump 22 and second is directly injected between pipeline.
In the present embodiment, first high-pressure safety injection pump 11 is connected by being provided with isolating valve 7 with the pipeline of check-valves 10
It is directly injected between pipeline in the containment suppression pool 6 and first, second high-pressure safety injection pump 12 is by being provided with isolation
The pipeline of valve 7 and check-valves 10 is connected to the containment suppression pool 6 and second and is directly injected between pipeline.Pass through setting two
Mutual independent high-pressure safety injection pump, enables to system to have two completely self-contained series, meets wanting for single failure criteria
It asks, reduces the potential risk of high-pressure safety injection disabler.
The present embodiment can be when cut accident occurs for nuclear power plant's primary Ioops, according to the feelings of primary Ioops system pressure decline
Condition is realized and is filled the water under different stress levels to reactor core.Under primary Ioops large break accident conditions, believe once receiving peace note
Number, system will execute following operation:
First high-pressure safety injection pump 11, the second high-pressure safety injection pump 12, the first low pressure safety injection pump 21, the second low pressure safety injection pump
22 automatic startings, peace water injecting tank water intaking pipeline isolating valve 71 automatically opens, while triggering the starting of automatically unloading system 4, carries out one
Circuit reduction of blood pressure in high-speed.Below primary Ioops pressure reduction to 12 injection pressure of the first high-pressure safety injection pump 11 and the second high-pressure safety injection pump
When, first high-pressure safety injection pump 11 and the second high-pressure safety injection pump 12 are fetched water from peace water injecting tank 3, carry out safe note to primary Ioops
Enter；When below primary Ioops pressure reduction to middle pressure peace 3 pressure of water injecting tank, middle pressure peace water injecting tank 3 leans on nitrogen pressure from trend one
Circuit carries out big flow injection；When primary Ioops pressure reduction to the first low pressure safety injection pump 21 and 22 note of the second low pressure safety injection pump
When entering pressure or less, the first low pressure safety injection pump 21 and the second low pressure safety injection pump 22 are fetched water from peace water injecting tank 3, are started to one time
Road is injected.
When peace water injecting tank 3 reaches low liquid level, automatic trigger containment suppression pool water intaking pipeline isolating valve 72 is opened, peace note
Water tank water intaking pipeline isolating valve 71 is closed, first high-pressure safety injection pump 11, the second high-pressure safety injection pump 12, the first low pressure safety injection pump
21, the second low pressure safety injection pump 22 starts to fetch water from containment suppression pool 6, into long-term circulation injection stage.Meanwhile by described
First residual heat removal exchanger 51 and the second Residual heat removal in 22 downstream of the first low pressure safety injection pump 21 and the second low pressure safety injection pump
Heat exchanger 52 takes the heat in containment out of.
In conclusion present system is provided with automatically unloading system 4, primary Ioops reduction of blood pressure in high-speed after realization accident increases
Peace beam amount is simultaneously quickly cooled down reactor core, improves safety；And low pressure peace note merges with Residual heat removal function, and the system of simplifying is matched
Set and improve the economy of system；In addition, suppression pool is arranged in the present embodiment 1 and 2 in containment, cancels containment sump and set
It sets, substantially reduces the configuration of containment volume and recirculating filter 61；And it is arranged outside containment and pacifies water injecting tank 3, eliminate
Because of the problems such as material-changing water tank bring containment penetration increases, and pipeline arrangement is complicated in setting containment.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completing
The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units.In addition, each function
Unit, module specific name be also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above-mentioned system
The specific work process of unit in system, module, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In embodiment provided by the present invention, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, system embodiment described above is only schematical, for example, the division of the module or unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be with
In conjunction with or be desirably integrated into another system, or some features can be ignored or not executed.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and model of each embodiment technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (9)
1. a kind of nuclear power plant's emergence core stacking cool system, including high-pressure safety injection pump, low pressure safety injection pump, peace water injecting tank, automatically unloading
System and voltage-stablizer, which is characterized in that nuclear power plant's emergence core stacking cool system further includes residual heat removal exchanger and peace
Full shell suppression pool；
The high-pressure safety injection pump is connected to the peace water injecting tank and is directly injected by being provided with the pipeline of isolating valve and check-valves
Between pipeline；
The low pressure safety injection pump is connected to the peace water injecting tank and residual heat removal exchanger by being provided with the pipeline of isolating valve
Between；
The peace water injecting tank is connected with the high-pressure safety injection pump, the low pressure safety injection pump respectively by being provided with the pipeline of isolating valve
It connects；
The automatically unloading system is arranged between voltage-stablizer and containment suppression pool；
The suppression pool discharges coolant for accommodating recycling water and primary loop depressurization.
2. nuclear power plant's emergence core stacking cool system according to claim 1, which is characterized in that the containment suppression pool is set
It sets in containment, and is equipped with wet-well and recirculating filter in the containment suppression pool, be provided with sprinkler in the wet-well.
3. nuclear power plant's emergence core stacking cool system according to claim 2, which is characterized in that the recirculating filter is set
Set the bottom in the pond of containment suppression pool, the recirculating filter is by being provided with the pipeline and high-pressure safety injection of isolating valve
Pump, low pressure safety injection pump are connected.
4. nuclear power plant's emergence core stacking cool system according to claim 3, which is characterized in that the automatically unloading system one
End is connected by the way that the pipeline of isolating valve is arranged with voltage-stablizer headroom, pipeline and the spray of the other end by setting regulating valve
Device is spilt to be connected.
5. nuclear power plant's emergence core stacking cool system according to claim 1, which is characterized in that the automatically unloading system packet
Several series are included, what pressure relief valve in parallel is each series of automatically unloading system include, and every level-one includes several
Concatenated valve.
6. nuclear power plant's emergence core stacking cool system according to claim 1 or 2, which is characterized in that the low pressure safety injection pump
Pipeline by being provided with isolating valve is connected between primary Ioops pipeline hot arc and residual heat removal exchanger；The Residual heat removal
Heat exchanger is connected to low pressure safety injection pump by being provided with the pipeline of isolating valve and check-valves and is directly injected between pipeline.
7. nuclear power plant's emergence core stacking cool system according to claim 6, which is characterized in that the low pressure safety injection pump includes
Mutually independent first low pressure safety injection pump and the second low pressure safety injection pump；The high-pressure safety injection pump includes mutually independent first high pressure
Safety injection pump and the second high-pressure safety injection pump；The residual heat removal exchanger includes mutually independent first residual heat removal exchanger
With the second residual heat removal exchanger.
8. nuclear power plant's emergence core stacking cool system according to claim 7, which is characterized in that the first low pressure safety injection pump
Pipeline by being provided with isolating valve is connected between primary Ioops pipeline hot arc and the first residual heat removal exchanger；Described first
Residual heat removal exchanger is connected to the first low pressure safety injection pump and is directly injected by being provided with the pipeline of isolating valve and check-valves
Between pipeline.
9. nuclear power plant's emergence core stacking cool system according to claim 8, which is characterized in that the second low pressure safety injection pump
Pipeline by being provided with isolating valve is connected between primary Ioops pipeline hot arc and the second residual heat removal exchanger；Described second
Residual heat removal exchanger is connected to the second low pressure safety injection pump and is directly injected by being provided with the pipeline of isolating valve and check-valves
Between pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931494.9A CN107945893B (en) | 2017-10-09 | 2017-10-09 | A kind of nuclear power plant's emergence core stacking cool system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931494.9A CN107945893B (en) | 2017-10-09 | 2017-10-09 | A kind of nuclear power plant's emergence core stacking cool system |
Publications (2)
| Publication Number | Publication Date |
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| CN107945893A CN107945893A (en) | 2018-04-20 |
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| CN108597630B (en) * | 2018-04-26 | 2021-05-28 | 中国核动力研究设计院 | Nuclear power plant full-pressure passive gravity injection system |
| CN109300556A (en) * | 2018-09-19 | 2019-02-01 | 中广核研究院有限公司 | A kind of reactor voltage-stabilizing system having peace pouring functions |
| CN109473185B (en) * | 2018-11-13 | 2022-07-29 | 中国核动力研究设计院 | Testing device and testing method for automatic chemical reactor shutdown system |
| CN109599192B (en) * | 2018-12-28 | 2024-04-12 | 长江勘测规划设计研究有限责任公司 | Underground nuclear power station reactor cavity injection system |
| CN109855814B (en) * | 2019-01-22 | 2020-11-06 | 中广核工程有限公司 | Method and system for detecting tightness of RCPB isolation valve of nuclear power plant |
| CN109659046A (en) * | 2019-02-01 | 2019-04-19 | 中国原子能科学研究院 | The reactor waste guiding system of coupling |
| CN110097982B (en) * | 2019-05-09 | 2023-03-21 | 中国核电工程有限公司 | Safe injection and waste heat discharge system of nuclear power plant |
| CN112037949B (en) * | 2020-09-09 | 2022-05-13 | 三门核电有限公司 | Method for executing cap buckling after loading in AP1000 containment overall leakage rate test |
| CN113808764B (en) * | 2021-08-03 | 2023-09-19 | 中国核电工程有限公司 | Method and system for guiding out residual heat of reactor core in containment |
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