CN207503653U - Nuclear reactor primary Ioops system and its voltage-stablizer spray system - Google Patents
Nuclear reactor primary Ioops system and its voltage-stablizer spray system Download PDFInfo
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- CN207503653U CN207503653U CN201721417210.6U CN201721417210U CN207503653U CN 207503653 U CN207503653 U CN 207503653U CN 201721417210 U CN201721417210 U CN 201721417210U CN 207503653 U CN207503653 U CN 207503653U
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- voltage
- stablizer
- main pump
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- pressure vessel
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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 is related to nuclear reactor primary Ioops system and its voltage-stablizer spray system, primary Ioops include pressure vessel and steam generator, main pump and voltage-stablizer.Steam generator, main pump are connected to outside pressure vessel, and voltage-stablizer is connect with steam generator.It is connected between main pump and pressure vessel by double-layer sleeve structure, double-layer sleeve structure includes inner sleeve and the outer tube being set in outside inner sleeve, it is formed between the internal face of outer tube and the outside wall surface of inner sleeve and enters the flow channel of main pump for cooling agent, the inner ring formation of inner sleeve allows the flow pass of the cooling agent outflow in main pump.Spray system includes water proof sleeve and spray circuit, and water proof sleeve is set inside pressure vessel, is connected on the inside of water proof sleeve with inner sleeve.The water proof sleeve connection inner sleeve of main pump, allows the intake pipe in spray circuit be directly welded on water proof sleeve, without outer tube access inner sleeve is needed guiding through, avoid may caused by internal and external casing the shortcomings that can not dismounting, can not overhauling.
Description
Technical field
The utility model is related to nuclear power field, more specifically to a kind of nuclear reactor primary Ioops system and its voltage stabilizing
Device spray system.
Background technology
4 main jet of Power Station With The Pressurized Water Reactor primary Ioops voltage-stablizer leaching at present, which is realized, is led under the driving of 3 discharge head of main pump
The vapor space that the nozzle positioned at 4 top of voltage-stablizer is injected into voltage-stablizer 4 is crossed, as shown in Fig. 2, every main spray pipe is installed
Aperture is adjusted to control spray flow in one shower valve.The pipeline that main jet leaching is connected to two cold legs by two respectively forms,
Spray pipe upstream is connected on the outlet main pipeline of 1, No. 2 loop main pump 3 of RCP systems, is linked to be one before two branch pipes to voltage-stablizer 4
The public spray main pipe of item.
For marine nuclear power station since the arrangement space in heap cabin is limited, primary Ioops use compact arrangement, cancel main pipeline, and master sets
The scheme of bilayer sleeve is used between standby, as Fig. 2 introduces a kind of compact primary Ioops system schema, entire reactor coolant system
System includes a cooling agent main pump 3 of steam generator 2, two of pressure vessel 1, two and a steam pressurizer 4 and reactor
Coolant pressure control and overpressure protection needed for ancillary equipment and pipeline, reactor core be placed in 1 lower part of pressure vessel, two
Platform steam generator 2 and two main pumps 3 are symmetrically connected on outside pressure vessel 1 respectively by " cross ", and it is dynamic to provide cooling agent cycle
Power, steam pressurizer 4 and control rod drive mechanism are respectively positioned on outside pressure vessel 1.
Program shower water exports inner sleeve 51 from main pump 3 and draws, and across outer tube 52, is driven in 3 discharge head of main pump
The vapor space of voltage-stablizer 4 is injected under dynamic by being located at the nozzle at 4 top of voltage-stablizer, uses the pneumatic control valve automatically controlled
Voltage-stablizer 4 of the control from two loop cold ends sprays.
It is linked to be one before two branch pipes to voltage-stablizer 4 and shares spray main pipe, the purpose of two independent shower valves of setting is
Even if a failsafe valve, another shower valve can still be put into.
Above-mentioned existing product structure or technology have the disadvantage that：
Main spray pipe, which needs guiding through outer tube 52 and reaches main pump 3, in above-mentioned existing product exports, and access inner sleeve 51, should
Scheme may cause inner sleeve 51 that can not install, and can not dismantle maintenance, and the present invention can overcome the shortcoming；
The pipeline that above-mentioned existing product is welded with internal and external casing 52 can be washed away by primary Ioops high flow rate cooling agent, be caused cold
But the local turbulent of agent and pipeline are washed away and are corroded, and the present invention can overcome the shortcoming；
Above-mentioned existing product need to design two main jet leaching water intaking pipelines, and the present invention can overcome the shortcoming.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of improved nuclear reactor primary Ioops system and its steady
Depressor spray system.
Technical solution is used by the utility model solves its technical problem：Construct a kind of primary Ioops voltage-stablizer spray system
System, the primary Ioops include pressure vessel and steam generator, main pump and voltage-stablizer；
The steam generator, the main pump are connected to outside the pressure vessel, the voltage-stablizer and the steam
Generator connects；
It is connected between the main pump and the pressure vessel by double-layer sleeve structure, the double-layer sleeve structure includes interior
Casing and the outer tube being set in outside the inner sleeve, shape between the internal face of the outer tube and the outside wall surface of the inner sleeve
Into the flow channel for entering the main pump for cooling agent, the cooling agent that the inner ring formation of the inner sleeve allows in the main pump flows out
Flow pass；
The spray system includes water proof sleeve and spray circuit, and the water proof sleeve is set inside the pressure vessel
It puts, is connected on the inside of the water proof sleeve with the inner sleeve；
The one end in the spray circuit passes through the side wall of the pressure vessel and the water proof sleeve, with the water proof sleeve
Inside connects, and the other end is connect with the voltage-stablizer.
Preferably, the spray circuit is equipped with the regulating valve of control loop flow.
Preferably, the spray circuit is equipped with the two or more regulating valves being arranged in parallel.
Preferably, the regulating valve is pneumatic control valve.
Preferably, the spray system is additionally included in the non-return valve set in the corresponding flow pass of the main pump.
Preferably, the water proof sleeve is in circular ring shape, and center is corresponding with the center of the pressure vessel.
The utility model also constructs a kind of nuclear reactor primary Ioops system, including the voltage-stablizer spray system.
Preferably, the primary Ioops include two steam generators and two main pumps, and two steam generators are symmetrical
The both sides of the pressure vessel are arranged on, two main pumps are symmetricly set on the both sides of the pressure vessel, each master
It is connected between pump and the pressure vessel by double-layer sleeve structure.
Preferably, two steam generators and two main pumps are staggered 90 degree in the circumferential direction of the pressure vessel
Setting.
Preferably, it is provided with non-return valve in the corresponding flow pass of at least one main pump.
Implement the nuclear reactor primary Ioops system of the utility model and its voltage-stablizer spray system, have below beneficial to effect
Fruit：The water proof sleeve connection inner sleeve of main pump, allows the intake pipe in spray circuit be directly welded on water proof sleeve, without
Access inner sleeve across outer tube, avoid may caused by internal and external casing the shortcomings that can not dismounting, can not overhauling.
In addition, a spray intake pipe need to be only designed, so as to simplify the design of spray system, after a main pump is stopped transport
Still the function of spray can be realized.Water proof sleeve is not needed to dismount and be overhauled after pressure vessel is fit into.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is that the structure of the nuclear reactor primary Ioops system and its voltage-stablizer spray system in the utility model embodiment is former
Manage schematic diagram；
Fig. 2 is the structural principle signal of the nuclear reactor primary Ioops system and its voltage-stablizer spray system in background technology
Figure.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
As shown in Figure 1, the nuclear reactor primary Ioops system in one preferred embodiment of the utility model includes pressure vessel 1
And two steam generators, 2, two main pumps 3 and a voltage-stablizer 4.Two steam generators, 2, two main pumps 3 connect respectively
Outside pressure vessel 1, voltage-stablizer 4 is connect with a wherein steam generator 2.
Preferably, two steam generators 2 are symmetricly set on the both sides of pressure vessel 1, and two main pumps 3 are symmetricly set on
The both sides of pressure vessel 1, and two steam generators 2 and two main pumps 3 are staggered 90 degree of settings in the circumferential direction of pressure vessel 1.
In other embodiments, steam generator 2, main pump 3 are alternatively other arrangement modes outside pressure vessel 1.
It is connected between each main pump 3 and pressure vessel 1 by double-layer sleeve structure 5, double-layer sleeve structure 5 includes interior
Casing 51 and the outer tube 52 being set in outside inner sleeve 51, form between the internal face of outer tube 52 and the outside wall surface of inner sleeve 51
Enter the flow channel of main pump 3 for cooling agent, the outflow for the cooling agent outflow that the inner ring formation of inner sleeve 51 allows in main pump 3 is led to
Road.
Primary Ioops system is equipped with spray system 6, allows the cooling agent flowed out from inner sleeve 51 that can be sprayed to voltage-stablizer 4.It is excellent
Selection of land, spray system 6 include water proof sleeve 61 and spray circuit 62, and water proof sleeve 61 is set inside pressure vessel 1, water proof set
61 inside of cylinder is connected with inner sleeve 51.
In addition, the one end in spray circuit 62 passes through the side wall of pressure vessel 1 and water proof sleeve 61, with 61 inside of water proof sleeve
Connection, the other end are connect with voltage-stablizer 4.
The inner sleeve 51 of two main pumps 3 is connected to by designing water proof sleeve 61, makes the intake pipe in spray circuit 62 can be with
It is directly welded on water proof sleeve 61, accesses inner sleeve 51 without outer tube 52 is needed guiding through, avoid internal and external casing caused by possibility
52 the shortcomings that can not dismounting, can not overhauling.It is injected under the driving of 3 discharge head of main pump by being located at the nozzle at 4 top of voltage-stablizer
To the vapor space of voltage-stablizer 4.Water proof sleeve 61 is not needed to dismount and be overhauled after pressure vessel 1 is fit into.
Another advantage is to connect the inner sleeve 51 of two loops, the water intaking in spray circuit 62 by water proof sleeve 61
Pipe can be welded on water proof sleeve 61, thus only design one intake pipe can be sprayed, so as to simplify spray system 6
Design still can realize the function of spray after a main pump 3 is stopped transport.
It is double that program needs allow water proof sleeve 61 of the spray circuit 62 inside pressure vessel 1 and pressure vessel 1 to realize
Layer welding, but be directly welded on the cylinder of pressure vessel 1 because of water proof sleeve 61, do not consider its dismounting and inspection in design
It repaiies, so need to only consider the inservice inspection of this twice weld seam.
This spray system 6 improves the integrality of outer tube 52 without in 52 trepanning of outer tube and welding；It is outer without needing guiding through
Casing 52 accesses inner sleeve 51, can facilitate the installation and maintenance of inner sleeve 51；Simplify 6 designing scheme of spray system；Drop
The design difficulty of low internal and external casing 52；Facilitate the maintenance and inservice inspection of inner sleeve 51；Process system is simpler.
Preferably, water proof sleeve 61 is in circular ring shape, and center is corresponding with the center of pressure vessel 1, allows border channel
Section is suitable, coolant is enable to circulate in border more balanced.
In some embodiments, spray circuit 62 is equipped with the regulating valve 621 of control loop flow, and regulating valve 621 can be with
Flow is adjusted, promotes safety and reliability.Further, spray circuit 62 is equipped with the two or more adjustings being arranged in parallel
Valve 621, even if 621 failure of regulating valve, other regulating valves 621 can still be put into.Regulating valve 621 is pneumatic control valve, can
To be sprayed using pneumatic control valve to automatically control from two branches to voltage-stablizer 4.
Spray system 6 further includes the non-return valve 622 set in two 3 corresponding flow pass of main pump respectively, in main pump
3 outlet setting non-return valves 622, it is therefore an objective to which after a main pump 3 is stopped transport, the non-return valve 622 of outlet can prevent cooling agent
It flows backwards, still can realize spray function by the pressure head of another main pump 3.It in other embodiments, also can only one wherein
Setting non-return valve 622 in the flow pass of main pump 3.It in other embodiments, also can the only only connection one outside pressure vessel 1
Steam generator 2 and a main pump 3.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly used in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (10)
1. a kind of voltage-stablizer spray system of nuclear reactor primary Ioops system, which is characterized in that the primary Ioops hold including pressure
Device (1) and steam generator (2), main pump (3) and voltage-stablizer (4)；
The steam generator (2), the main pump (3) are connected to the pressure vessel (1) outside, the voltage-stablizer (4) with
Steam generator (2) connection；
It is connected between the main pump (3) and the pressure vessel (1) by double-layer sleeve structure (5), the double-layer sleeve structure
(5) including inner sleeve (51) and the outer tube (52) of the inner sleeve (51) outside, the internal face of the outer tube (52) are set in
The flow channel for entering the main pump (3) for cooling agent, the inner sleeve are formed between the outside wall surface of the inner sleeve (51)
(51) inner ring formation allows the flow pass of the cooling agent outflow in the main pump (3)；
The spray system (6) includes water proof sleeve (61) and spray circuit (62), and the water proof sleeve (61) is in the pressure
It sets inside container (1), is connected on the inside of the water proof sleeve (61) with the inner sleeve (51)；
One end of spray circuit (62) passes through the side wall of the pressure vessel (1) and the water proof sleeve (61), and described
It is connected on the inside of water proof sleeve (61), the other end is connect with the voltage-stablizer (4).
2. the voltage-stablizer spray system of nuclear reactor primary Ioops system according to claim 1, which is characterized in that the spray
Drench the regulating valve (621) that circuit (62) are equipped with control loop flow.
3. the voltage-stablizer spray system of nuclear reactor primary Ioops system according to claim 2, which is characterized in that the spray
Leaching circuit (62) is equipped with the two or more regulating valves (621) being arranged in parallel.
4. the voltage-stablizer spray system of the nuclear reactor primary Ioops system according to Claims 2 or 3, which is characterized in that institute
Regulating valve (621) is stated as pneumatic control valve.
5. the voltage-stablizer spray system of nuclear reactor primary Ioops system according to claim 1, which is characterized in that the spray
Leaching system (6) is additionally included in the non-return valve (622) set in the corresponding flow pass of the main pump (3).
6. the voltage-stablizer spray system of nuclear reactor primary Ioops system according to claim 1, which is characterized in that it is described every
Water mantle (61) is in circular ring shape, and center is corresponding with the center of the pressure vessel (1).
7. a kind of nuclear reactor primary Ioops system, which is characterized in that sprayed including claim 1 to 6 any one of them voltage-stablizer
Leaching system.
8. nuclear reactor primary Ioops system according to claim 7, which is characterized in that the primary Ioops include two steam
Generator (2) and two main pumps (3), two steam generators (2) are symmetricly set on the both sides of the pressure vessel (1),
Two main pumps (3) are symmetricly set on the both sides of the pressure vessel (1), each main pump (3) and the pressure vessel
(1) it is connected between by double-layer sleeve structure (5).
9. nuclear reactor primary Ioops system according to claim 8, which is characterized in that two steam generators (2)
It is staggered in the circumferential direction of the pressure vessel (1) 90 degree of settings with two main pumps (3).
10. nuclear reactor primary Ioops system according to claim 8 or claim 9, which is characterized in that at least one main pump
(3) it is provided with non-return valve (622) in the corresponding flow pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721417210.6U CN207503653U (en) | 2017-10-27 | 2017-10-27 | Nuclear reactor primary Ioops system and its voltage-stablizer spray system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721417210.6U CN207503653U (en) | 2017-10-27 | 2017-10-27 | Nuclear reactor primary Ioops system and its voltage-stablizer spray system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207503653U true CN207503653U (en) | 2018-06-15 |
Family
ID=62502064
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721417210.6U Active CN207503653U (en) | 2017-10-27 | 2017-10-27 | Nuclear reactor primary Ioops system and its voltage-stablizer spray system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108986933A (en) * | 2018-08-01 | 2018-12-11 | 中广核研究院有限公司 | Modularization supporting arrangement for multi-vessel system |
| CN108986932A (en) * | 2018-08-01 | 2018-12-11 | 中广核研究院有限公司 | Modularization for multi-vessel system is layered supporting arrangement |
| CN109273120A (en) * | 2018-08-08 | 2019-01-25 | 中广核研究院有限公司 | A kind of cold section of thermometry of the small-sized nuclear reactor of compact |
| CN109340184A (en) * | 2018-09-21 | 2019-02-15 | 中广核研究院有限公司 | A kind of nuclear reactor coolant pump and its anti-backflow pump shell structure |
| CN109340183A (en) * | 2018-09-21 | 2019-02-15 | 中广核研究院有限公司 | A kind of nuclear reactor coolant pump and its pump shell structure |
| CN111290443A (en) * | 2020-04-02 | 2020-06-16 | 广西防城港核电有限公司 | Continuous spraying flow control system of nuclear power station voltage stabilizer |
| CN112242205A (en) * | 2019-07-16 | 2021-01-19 | 中核核电运行管理有限公司 | Method for rapidly cooling voltage stabilizer of nuclear power unit |
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2017
- 2017-10-27 CN CN201721417210.6U patent/CN207503653U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108986933A (en) * | 2018-08-01 | 2018-12-11 | 中广核研究院有限公司 | Modularization supporting arrangement for multi-vessel system |
| CN108986932A (en) * | 2018-08-01 | 2018-12-11 | 中广核研究院有限公司 | Modularization for multi-vessel system is layered supporting arrangement |
| CN108986932B (en) * | 2018-08-01 | 2023-10-31 | 中广核研究院有限公司 | Modular layered support for multi-container systems |
| CN108986933B (en) * | 2018-08-01 | 2023-12-22 | 中广核研究院有限公司 | Modular support device for multi-container systems |
| CN109273120A (en) * | 2018-08-08 | 2019-01-25 | 中广核研究院有限公司 | A kind of cold section of thermometry of the small-sized nuclear reactor of compact |
| CN109340184A (en) * | 2018-09-21 | 2019-02-15 | 中广核研究院有限公司 | A kind of nuclear reactor coolant pump and its anti-backflow pump shell structure |
| CN109340183A (en) * | 2018-09-21 | 2019-02-15 | 中广核研究院有限公司 | A kind of nuclear reactor coolant pump and its pump shell structure |
| CN112242205A (en) * | 2019-07-16 | 2021-01-19 | 中核核电运行管理有限公司 | Method for rapidly cooling voltage stabilizer of nuclear power unit |
| CN112242205B (en) * | 2019-07-16 | 2022-08-19 | 中核核电运行管理有限公司 | Method for quickly cooling voltage stabilizer of nuclear power unit |
| CN111290443A (en) * | 2020-04-02 | 2020-06-16 | 广西防城港核电有限公司 | Continuous spraying flow control system of nuclear power station voltage stabilizer |
| CN111290443B (en) * | 2020-04-02 | 2023-04-07 | 广西防城港核电有限公司 | Continuous spraying flow control system of nuclear power station voltage stabilizer |
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