CN209591541U - A kind of reactor core cooling system - Google Patents
A kind of reactor core cooling system Download PDFInfo
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- CN209591541U CN209591541U CN201920121087.6U CN201920121087U CN209591541U CN 209591541 U CN209591541 U CN 209591541U CN 201920121087 U CN201920121087 U CN 201920121087U CN 209591541 U CN209591541 U CN 209591541U
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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 utility model provides a kind of reactor core cooling system, comprising: spray equipment and N root cooling tube；The first end of each cooling tube is connected to the hot water outlet of the reactor pressure vessel, each cooling tube is each along being connected with cooling tube isolating valve, pump and heat exchanger in turn on the direction of respective first end to second end, wherein, the N is the integer more than or equal to 2；The second end of each cooling tube passes through at least one pressure vessel isolating valve and is connected to the water inlet of the reactor pressure vessel；The second end of each cooling tube passes through at least one spray equipment isolating valve and connect with the spray equipment.Reactor core cooling system provided in this embodiment can be provided simultaneously with container spray function and reactor waste discharge function, to simplify cooling equipment, reduce costs.
Description
Technical field
The utility model relates to technical field of nuclear power, in particular to a kind of reactor core cooling system.
Background technique
With the development of science and technology the type of the electric energy used in people's life is also more and more abundant, and what nuclear power station generated
Nuclear power occupies more and more important position in people's lives.It is general to be provided with more sets for cooling anti-in practice
The cooling equipment of heap and containment is answered, but since the cooling equipment of every suit can only realize single refrigerating function, such as: it is each
Covering cooling equipment may be implemented the spray function to containment, or realize the function of discharge reactor waste, so as to cause cold
But equipment more redundancy, higher cost.
Utility model content
The utility model embodiment is designed to provide a kind of reactor core cooling system, solve cooling equipment compared with
For redundancy, the problem of higher cost.
In order to achieve the above object, the utility model embodiment provides a kind of reactor core cooling system, is applied to core
In power station, the nuclear power station includes reactor pressure vessel, Spent Fuel Pool cooling system, and chemistry and volumetric void fraction system
System, the reactor core cooling system includes: spray equipment and N root cooling tube；
The first end of each cooling tube is connected to the hot water outlet of the reactor pressure vessel, each equal edge of cooling tube
Be connected with cooling tube isolating valve, pump and heat exchanger in turn in respective first end to the direction of second end, wherein the N
For the integer more than or equal to 2；
The second end of each cooling tube passes through at least one pressure vessel isolating valve and the reactor pressure vessel
Water inlet connection；
The second end of each cooling tube passes through at least one spray equipment isolating valve and connect with the spray equipment.
Optionally, the nuclear power station further includes material-changing water tank, and each cooling tube is set between respective first end and pump
It is equipped with the first communication port；
The reactor core cooling system further includes material-changing water tank water intaking pipeline, and the material-changing water tank and each first connects
Port passes through a material-changing water tank water intaking pipeline connection, is respectively connected at least one in each material-changing water tank water intaking pipeline and reloads
Water tank isolating valve.
Optionally, connected by filter between each material-changing water tank water intaking pipeline and the water outlet of the material-changing water tank
It is logical.
Optionally, the reactor core cooling system further includes at least one material-changing water tank return piping, each cooling
The second end of pipe passes through a material-changing water tank return piping and is connected to the material-changing water tank.
Optionally, the pump in each cooling tube and heat exchanger are all set in outside the containment of the nuclear power station.
Optionally, each cooling tube is connected with check-valves between respective pump and heat exchanger.
Optionally, the second end of each cooling tube passes through at least two spray equipment isolating valves and the spray equipment connects
It connects, and at least two spray equipments isolating valve is in parallel each other.
Optionally, also there is the second communication port and third connecting mouth, each second communication port is located at every in each cooling tube
Between pump in the first end of a cooling tube and each cooling tube, each third connecting mouth is located at the heat exchange in each cooling tube
Between device and the second end of each cooling tube；
The reactor core cooling system further includes at least one flow pipeline, and the first end of each flow pipeline passes through
The second communication port in one cooling tube is connected to the water intaking pipeline of the Spent Fuel Pool cooling system, each flow pipeline
Second end is connected to by the third connecting mouth in corresponding cooling tube with the return piping of the Spent Fuel Pool cooling system.
Optionally, the reactor core cooling system further include at least one first collector and/or at least one second
Collector；
Each cooling tube is provided with the 4th communication port between respective pump and heat exchanger；
It is connected in the 4th communication port of each cooling tube with the letdown line of the chemistry and volume system；
Each first collector is respectively communicated with the 4th communication port of two adjacent cooling tubes, and each second collector is respectively communicated with two
The third connecting mouth of a adjacent cooling tube.
Optionally, each cooling tube is connected with flow control valve between respective heat exchanger and third connecting mouth.
Optionally, each cooling tube is connected with overpressure protection safety valve between respective first end and pump.
A technical solution in above-mentioned technical proposal have the following advantages that or the utility model has the advantages that
The reactor core cooling system provided in the utility model embodiment, comprising: spray equipment and N root cooling tube；
The first end of each cooling tube is connected to the hot water outlet of the reactor pressure vessel, and each cooling tube is each along respective
Be connected with cooling tube isolating valve, pump and heat exchanger in first end to the direction of second end in turn, wherein the N be greater than or
Person is equal to 2 integer；The second end of each cooling tube passes through at least one pressure vessel isolating valve and the reactor pressure
The water inlet of container is connected to；The second end of each cooling tube passes through at least one spray equipment isolating valve and the spray equipment
Connection.In this way, reactor core cooling system provided in this embodiment can be provided simultaneously with container spray function and reactor
Residual heat removal function reduces costs to simplify cooling equipment.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of reactor core cooling system provided by the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the embodiments are a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of reactor core cooling system, it is applied in nuclear power station,
The nuclear power station includes reactor pressure vessel 1, Spent Fuel Pool cooling system 2 and cvcs 3, institute
Stating reactor core cooling system includes: spray equipment 4 and N root cooling tube 5；
The first end of each cooling tube 5 is connected to the hot water outlet of the reactor pressure vessel 1, each cooling tube 5
Each along being connected with cooling tube isolating valve 6, pump 7 and heat exchanger 8 on the direction of respective first end to second end in turn,
In, the N is the integer more than or equal to 2；
The second end of each cooling tube 5 passes through at least one pressure vessel isolating valve 9 and the reactor pressure vessel 1
Water inlet connection；
The second end of each cooling tube 5 passes through at least one spray equipment isolating valve 10 and connect with the spray equipment 4.
Wherein, the working principle of the present embodiment may refer to as follows:
The first end of each cooling tube 5 extracts hot water from the water inlet of reactor pressure vessel 1, and successively by above-mentioned hot water
By cooling tube isolating valve 6, the pump 7 and heat exchanger 8 in each cooling tube 5, and obtained in heat exchanger 8 by pipeline have it is cold
But water, above-mentioned hot water and above-mentioned cooling water carry out heat exchange in heat exchanger 8, after the temperature of above-mentioned hot water reduces,
Hot water after temperature is reduced again is through in the second end piii reactor pressure vessel 1 of cooling tube 5.In this way, so as to will
Heat in reactor pressure vessel 1 is preferably discharged.It should be noted that either in normal conditions, or in design base
Under quasi- accident, the heat in reactor pressure vessel 1 can be discharged through the above steps for cooling tube 5.
In addition, being directly injected into reactor pressure vessel 1 in heat exchanger 8 by the water after heat exchange, rather than infuse
Enter in the cold depot siding of reactor pressure vessel 1, can rupture to avoid cold depot siding cannot inject reaction so as to cause above-mentioned water
The generation of phenomenon in core pressure vessel 1, and then improve safety.
In addition, occurring when in the main pipeline that Main steam line break or the reactor coolant loop in nuclear power station occurs
When the design basis accidents such as large break, pressure is increased rapidly in containment 11, can open spray equipment isolating valve 10, In at this time
When pressure reaches the trigger point of spray equipment 4, spray equipment 4 starts to spray cold water, to reduce the pressure in containment 11 to peace
Total head.
It, both can in time will be in reactor pressure vessel 1 in this way, reactor core cooling system provided in this embodiment
Heat discharge, also may be implemented to the spray function in containment 11, to reduce the pressure in containment 11, to simplify cold
But equipment reduces costs.
In addition, optional, the containment 11 in nuclear power station is can be set in pump 7 and heat exchanger 8 in each cooling tube 5
Outside, the remaining part in entire reactor core cooling system in addition to pump 7 and heat exchanger 8 can be set in containment 11.
In this way, the small volume of containment 11 can be made, to further reduce use cost.Certainly, not specific herein to limit
The setting position of fixed above-mentioned component.Such as: all components of reactor core cooling system can be set in containment 11.
It should be noted that cooling tube when cooling tube 5 passes through containment 11, in containment 11 and outside containment 11
Isolating valve 1101 is provided on 5, and above-mentioned isolating valve 1101 is required to be arranged close to the shell of containment 11.
Wherein, the hot water outlet of reactor pressure vessel 1 may also be referred to as reactor coolant loop hot arc.
Wherein, the concrete type of spray equipment 4 it is not limited here, such as: spray equipment 4 can be spraying ring pipe shape
Formula.And check-valves is also provided between spray equipment 4 and spray equipment isolating valve 10.
The reactor core cooling system provided in the utility model embodiment, comprising: spray equipment and N root cooling tube；
The first end of each cooling tube is connected to the hot water outlet of the reactor pressure vessel, and each cooling tube is each along respective
Be connected with cooling tube isolating valve, pump and heat exchanger in first end to the direction of second end in turn, wherein the N be greater than or
Person is equal to 2 integer；The second end of each cooling tube passes through at least one pressure vessel isolating valve and the reactor pressure
The water inlet of container is connected to；The second end of each cooling tube passes through at least one spray equipment isolating valve and the spray equipment
Connection.In this way, reactor core cooling system provided in this embodiment can be provided simultaneously with container spray function and reactor
Residual heat removal function reduced costs to simplify cooling equipment.
Optionally, the nuclear power station further includes material-changing water tank 12, each cooling tube 5 respective first end and pump 7 it
Between be provided with the first communication port；
As shown in Figure 1, the reactor core cooling system further includes material-changing water tank water intaking pipeline 1201, the water that reloads
Case 12 passes through a material-changing water tank water intaking pipeline 1201 with each first communication port and is connected to, each material-changing water tank water intaking pipeline
At least one material-changing water tank isolating valve 1202 is respectively connected in 1201.
Wherein, spray equipment 4 can fetch water from material-changing water tank 12, then by above-mentioned water spray, to reduce containment 11
Pressure.It should be noted that can successively reach spray after pump 7 and heat exchanger 8 from the water taken in material-changing water tank 12
In device 4, in this way, heat exchange can be carried out to water by heat exchanger 8, to reduce the temperature of water, so that spray equipment 4
Spraying effect it is more preferable.
Wherein, it is preferred that there are two material-changing water tank isolating valves 1202 for connection in each material-changing water tank water intaking pipeline 1201, change
Expect that water tank isolating valve 1202 can be motor-driven valve, so that opening or closing more convenient when material-changing water tank isolating valve 1202.
It should be noted that material-changing water tank 12 can also be placed in containment 11.
In the utility model embodiment, by the way that material-changing water tank is arranged, so that spray equipment is fetched water more in spray
It is convenient.
Optionally, as shown in Figure 1, between each material-changing water tank water intaking pipeline 1201 and the water outlet of the material-changing water tank 12
It is connected to by filter 1203.
Wherein, the concrete type of filter 1203 is it is not limited here.Such as: filter 1203 can be strainer or band
Porose plate etc..
In the utility model embodiment, passed through between each material-changing water tank water intaking pipeline and the water outlet of material-changing water tank
Filter connection, in this way, it is possible to reduce the large volume of impurity in material-changing water tank enters in material-changing water tank water intaking pipeline, and then stifled
The generation for the phenomenon that filling in material-changing water tank water intaking pipeline.
Optionally, as shown in Figure 1, the reactor core cooling system further includes at least one material-changing water tank return piping
1204, the second end of each cooling tube 5 passes through a material-changing water tank return piping 1204 and is connected to the material-changing water tank 12.
Wherein, when being in design basis accident, pressure rapid increase in containment 11, to easily lead to material-changing water tank
Water temperature in 12 also rapid increase, in this way, the water in material-changing water tank 12 can successively be passed through to material-changing water tank water intaking pipeline at this time
1201, pump 7 and heat exchanger 8, and heat exchange is carried out to above-mentioned water in heat exchanger 8, to reduce the temperature of above-mentioned water, and
Water after temperature is reduced is back in material-changing water tank 12 through material-changing water tank return piping 1204, to reduce material-changing water tank 12
In water temperature, and then material-changing water tank 12 is cooled down.
In addition, material-changing water tank water intaking pipeline 1201 and material-changing water tank return piping 1204 can be all set in containment 11
It is interior, to reduce the component through containment 11, so that the surface of containment 11 is more complete.
In addition, isolating valve can be set between the second end and material-changing water tank return piping 1204 of cooling tube 5, and above-mentioned
Isolating valve is preferably motor-operated isolation valve.
In the utility model embodiment, reactor core cooling system further includes at least one material-changing water tank return piping,
The second end of each cooling tube passes through a material-changing water tank return piping and is connected to material-changing water tank, changes so as to reach reduction
Expect the purpose of the water temperature in water tank, and then achievees the purpose that cooling material-changing water tank.
Optionally, as shown in Figure 1, each cooling tube 5 is connected with check-valves between respective pump 7 and heat exchanger 8
13。
Wherein, it is connected with check-valves 13 between pump 7 and heat exchanger 8, since check-valves 13 has the characteristic of one-way flow,
It thereby may be ensured that water can only flow to heat exchanger 8 from pump 7, prevent water from the flow direction of heat exchanger 8 pump 7, especially avoid hot friendship
Hot water return in parallel operation 8 is to pump 7, and then hair the phenomenon that be back in material-changing water tank 12, damage to material-changing water tank 12
It is raw.
In the utility model embodiment, check-valves is connected between pump and heat exchanger, to prevent in heat exchanger
Water be back in pump.
Optionally, as shown in Figure 1, the second end of each cooling tube 5 pass through at least two spray equipment isolating valves 10 with
The spray equipment 4 connects, and at least two spray equipments isolating valve 10 is in parallel each other.
Wherein, it is preferred that the quantity of spray equipment isolating valve 10 is two.
In the utility model embodiment, since above-mentioned spray equipment isolating valve is in parallel each other, in this way, with above-mentioned spray
Concatenated mode is compared between device isolating valve, when defective valve can be isolated to avoid a spray equipment, entire spray dress
The generation for the phenomenon that setting cisco unity malfunction, to improve the stabilization of the spray function of entire reactor core cooling system
Property.
Optionally, as shown in Figure 1, also having the second communication port and third connecting mouth in each cooling tube 5, each second connects
Port is located between the pump 7 in the first end and each cooling tube 5 of each cooling tube 5, and each third connecting mouth is located at each cold
But between the heat exchanger 8 in pipe 5 and the second end of each cooling tube 5；
The reactor core cooling system further includes at least one flow pipeline 14, the first end of each flow pipeline 14
It is connected to by the second communication port in a cooling tube 5 with the water intaking pipeline 201 of the Spent Fuel Pool cooling system 2, it is each
The second end of flow pipeline 14 passes through the third connecting mouth and the Spent Fuel Pool cooling system 2 in corresponding cooling tube 5
Return piping 202 is connected to.
Wherein, the second communication port being connected to the first end of flow pipeline 14, and connect with the second end of flow pipeline 14
Logical third connecting mouth is respectively positioned in the same cooling tube 5.
Wherein, optionally, as shown in Figure 1, the reactor core cooling system further includes at least one first collector
1501 and/or at least one second collector 1502；
Each cooling tube 5 is provided with the 4th communication port between respective pump 7 and heat exchanger 8；
It is connected in the 4th communication port of each cooling tube 5 with the letdown line of the chemistry and volume system 3；
Each first collector 1501 is respectively communicated with the 4th communication port of two adjacent cooling tubes 5, each second collector 1502
It is respectively communicated with the third connecting mouth of two adjacent cooling tubes 5.
Wherein, two neighboring cooling tube 5 can be connected to the second collector 1502 by the first collector 1501, when a certain cooling
When section components in pipe 5 fail, it is connected to by the first collector 1501 and the second collector 1502 with adjacent cooling tube 5, thus
So that the cooling tube 5 can also work normally.
Such as: it is in an off state when between the first end of a certain cooling tube 5 and the hot water outlet of reactor pressure vessel 1
When, then the cooling tube 5 cannot fetch water from reactor pressure vessel 1.But the cooling tube 5 can pass through the first collector 1501
It fetches water from reactor pressure vessel 1 from the first end of the cooling tube 5 adjacent with this, so that entire reactor core is cooling
The stability of system is more preferable.
It should be noted that multiple isolating valves can also be respectively arranged on the first collector 1501 and the second collector 1502,
Preferably, isolating valve may be motor-operated isolation valve.
In the utility model embodiment, it can make two neighboring cooling tube can be with by the first collector and the second collector
It interconnects, when the section components in some cooling tube fail, the first collector can also be passed through and the second collector plays and makees
With to improve the stability of each cooling tube work.
Wherein, when nuclear power station works normally, between pump 7 and the first end of cooling tube 5 and heat exchanger 8 and cooling
Off-state can be between the second end of pipe 5, i.e. cooling tube isolating valve 6, pump 7 and pressure vessel isolating valve 9 is in
Closed state, and the part cooling tube pumped between 7 and heat exchanger 8 may be at connected state, then can pass through weary combustion at this time
Expect that the water intaking pipeline 201 of pond cooling system 2 is fetched water from Spent Fuel Pool cooling system, so that between pump 7 and heat exchanger 8
Water can be full of in part cooling tube and flow pipeline 14.
Under reactor shutdown condition, reactor core cooling system can play reactor waste discharge function at this time,
I.e. cooling tube isolating valve 6 is in the open state, then at this time can be by the first end of cooling tube 5 from reactor pressure vessel 1
Hot water is extracted, then above-mentioned hot water can flow to the return piping of Spent Fuel Pool cooling system 2 by flow pipeline 14 respectively
202 and cvcs 3 letdown line in, to complete to " heating coil " function of cooling tube 5.Certainly, In
When pump 7 is just opened, the water flow that pump 7 passes through is smaller, then is extracted from reactor pressure vessel 1 by the first end of cooling tube 5
Hot water, three parts can be divided at this time, a part is flowed in heat exchanger 8 by pump 7, and a part flow to chemistry and volume control
In the letdown line of system 3 processed, remainder can flow to the return pipe of Spent Fuel Pool cooling system 2 by flow pipeline 14
Line 202, to continue to complete " heating coil " function to cooling tube 5.Certainly, it after the temperature of cooling tube 5 rises, can increase logical
The flow of the water of pump 7 is crossed, then can accordingly be reduced by the flow of the water in flow pipeline 14 at this time.
When there is large break in the main pipeline that the reactor coolant loop in Main steam line break or nuclear power station occurs
Etc. design basis accidents when, reactor core cooling system can play spray function at this time, i.e., pressure is rapid in containment 11
It increasing, spray equipment isolating valve 10 and material-changing water tank isolating valve 1202 can be opened at this time, and spray equipment 4 is sprayed, with
Reduce the pressure and temperature in containment 11.
It should be noted that reactor shutdown condition contains shutdown after normal shutdown and design basis accident.
When the pressure and temperature in containment 11 is down to security value (s), reactor core cooling system can be played at this time
Reactor waste discharge function, it can close spray equipment isolating valve 10 and material-changing water tank isolating valve 1202, open cooling
Pipe isolating valve 6 and pressure vessel isolating valve 9 are discharged cooling tube 5 from the heat of reactor pressure vessel 1 by first end
Hot water taking in mouthful, and after being cooled down by heat exchanger 8 to above-mentioned hot water, then water after cooling is returned into reactor pressure
In container 1, to achieve the effect that cooled reactor pressure vessel 1.In this way, reactor core cooling system is sprayed by containment
The switching for drenching function and reactor waste discharge function, reduces reactor core cooling system and is chronically at container spray function
It is damaged caused by the equipment in containment 11 when energy.
In addition, it is necessary to illustrate, it can connect one on the water intaking pipeline 201 of Spent Fuel Pool cooling system 2 and reload
One end of water tank purge lines 203, the material-changing water tank purge lines 203 passes through cooling tube 5 and material-changing water tank water intaking pipeline 1202
It is connected to material-changing water tank 12, the other end and the water that reloads in Spent Fuel Pool cooling system 2 of the material-changing water tank purge lines 203
Case purge lines connection, to achieve the purpose that purify the water in material-changing water tank 12.I.e. by material-changing water tank fetch water pipeline 1202,
Material-changing water tank purge lines forming circuit in cooling tube 5, material-changing water tank purge lines 203 and Spent Fuel Pool cooling system 2,
So as to replace the water in material-changing water tank 12.
In the utility model embodiment, by the way that flow pipeline is arranged, the function of reactor core cooling system can be made
It is more diversified while also more stable.
Optionally, as shown in Figure 1, each cooling tube 5 is connected between respective heat exchanger 8 and third connecting mouth
Flow control valve 16.
Wherein, when flow control valve 16 is when playing a role, extra water can be flowed from flow pipeline 14 in cooling tube 5
It is dynamic, to play the role of shunting.
Furthermore it is also possible to be provided with the communicating pipe 1503 for being respectively communicated with the first collector 1501 and the second collector 1502, it is connected to
The communication port for being connected to the letdown line of cvcs 3 can be set on pipe 1503.It needs to illustrate
It is that bypass flow regulator 1504 is also provided on communicating pipe 1503, in this way, flow control valve 16, bypass flow are adjusted
Valve 1504 and flow pipeline 14 can cooperate, to adjust in each cooling tube 5 through the stream of pump 7 and the water of heat exchanger 8
Amount, and the flow in each cooling tube 5 by pump 7 and the water of heat exchanger 8 can be made more stable and uniform.
In the utility model embodiment, it is connected with flow control valve between heat exchanger and third connecting mouth, so as to
Facilitate the flow for adjusting the water in each cooling tube.
Optionally, as shown in Figure 1, each cooling tube 5 is connected with overpressure protection peace between respective first end and pump 7
Full valve 17.
Wherein, when the reactor coolant loop in nuclear power station is in cold conditions superpressure operating condition, such as since reactor is cooling
Agent pumps error starting, and when being in cold conditions superpressure operating condition so as to cause reactor coolant loop, opening overpressure protection safety valve 17 can
Preventing system pressure is more than design pressure, protects the reactor core cooling system in reactor coolant loop and the present embodiment
It is not destroyed.
In the utility model embodiment, each cooling tube is connected with overpressure protection peace between respective first end and pump
Full valve can promote the security performance of reactor core cooling system.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of reactor core cooling system is applied in nuclear power station, the nuclear power station includes reactor pressure vessel, weary combustion
Expect pond cooling system and cvcs, which is characterized in that the reactor core cooling system includes:
Spray equipment and N root cooling tube；
The first end of each cooling tube is connected to the hot water outlet of the reactor pressure vessel, and each cooling tube is each along each
From first end to the direction of second end on be connected with cooling tube isolating valve, pump and heat exchanger in turn, wherein the N is big
In or equal to 2 integer；
The second end of each cooling tube passes through the water inlet of at least one pressure vessel isolating valve and the reactor pressure vessel
Mouth connection；
The second end of each cooling tube passes through at least one spray equipment isolating valve and connect with the spray equipment.
2. reactor core cooling system according to claim 1, which is characterized in that the nuclear power station further includes the water that reloads
Case, each cooling tube are provided with the first communication port between respective first end and pump；
The reactor core cooling system further includes material-changing water tank water intaking pipeline, the material-changing water tank and each first communication port
It is connected to by a material-changing water tank water intaking pipeline, is respectively connected at least one material-changing water tank in each material-changing water tank water intaking pipeline
Isolating valve.
3. reactor core cooling system according to claim 2, which is characterized in that each material-changing water tank water intaking pipeline with
It is connected to by filter between the water outlet of the material-changing water tank.
4. reactor core cooling system according to claim 2, which is characterized in that the reactor core cooling system
Further include at least one material-changing water tank return piping, the second end of each cooling tube pass through a material-changing water tank return piping with
The material-changing water tank connection.
5. reactor core cooling system according to claim 1, which is characterized in that pump and heat in each cooling tube are handed over
Parallel operation is all set in outside the containment of the nuclear power station.
6. reactor core cooling system according to claim 1, which is characterized in that the second end of each cooling tube is logical
At least two spray equipment isolating valves are crossed to connect with the spray equipment, and at least two spray equipments isolating valve each other it
Between it is in parallel.
7. reactor core cooling system according to claim 1, which is characterized in that also have second in each cooling tube
Communication port and third connecting mouth, each second communication port be located at each cooling tube first end and each cooling tube in pump it
Between, each third connecting mouth is located between the heat exchanger in each cooling tube and the second end of each cooling tube；
The reactor core cooling system further includes at least one flow pipeline, and the first end of each flow pipeline passes through one
The second communication port in cooling tube is connected to the water intaking pipeline of the Spent Fuel Pool cooling system, and the second of each flow pipeline
End is connected to by the third connecting mouth in corresponding cooling tube with the return piping of the Spent Fuel Pool cooling system.
8. reactor core cooling system according to claim 7, which is characterized in that the reactor core cooling system
It further include at least one first collector and/or at least one second collector；
Each cooling tube is provided with the 4th communication port between respective pump and heat exchanger；
It is connected in the 4th communication port of each cooling tube with the letdown line of the chemistry and volume system；
Each first collector is respectively communicated with the 4th communication port of two adjacent cooling tubes, and each second collector is respectively communicated with two phases
The third connecting mouth of adjacent cooling tube.
9. reactor core cooling system according to claim 7, which is characterized in that each cooling tube is in respective warm
Flow control valve is connected between exchanger and third connecting mouth.
10. -9 described in any item reactor core cooling systems according to claim 1, which is characterized in that each cooling tube is equal
Overpressure protection safety valve is connected between respective first end and pump.
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| CN201920121087.6U CN209591541U (en) | 2019-01-24 | 2019-01-24 | A kind of reactor core cooling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111477363A (en) * | 2019-01-24 | 2020-07-31 | 华龙国际核电技术有限公司 | A reactor core cooling system |
| CN113658723A (en) * | 2020-05-12 | 2021-11-16 | 华龙国际核电技术有限公司 | A cooling and make-up water system |
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111477363A (en) * | 2019-01-24 | 2020-07-31 | 华龙国际核电技术有限公司 | A reactor core cooling system |
| CN111477363B (en) * | 2019-01-24 | 2024-11-22 | 华龙国际核电技术有限公司 | Reactor core cooling system |
| CN113658723A (en) * | 2020-05-12 | 2021-11-16 | 华龙国际核电技术有限公司 | A cooling and make-up water system |
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