CN207517366U - Reactor-loop and its voltage-stablizer spray circuit - Google Patents
Reactor-loop and its voltage-stablizer spray circuit Download PDFInfo
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- CN207517366U CN207517366U CN201721416805.XU CN201721416805U CN207517366U CN 207517366 U CN207517366 U CN 207517366U CN 201721416805 U CN201721416805 U CN 201721416805U CN 207517366 U CN207517366 U CN 207517366U
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- spray
- stablizer
- voltage
- reactor
- 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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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model is related to reactor-loops and its voltage-stablizer spray circuit, primary Ioops to 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 sprays circuit and includes the first spray branch；First spray branch road is equipped with the first spray pump, is connected inside one end outer tube corresponding with a main pump of the first spray branch.Spray circuit is connect with outer tube, improves the integrality of outer tube and primary Ioops pressure boundary；Reduce the design difficulty of internal and external casing；Facilitate the installation, maintenance and inspection of inner sleeve.
Description
Technical field
The utility model is related to nuclear power fields, are sprayed more specifically to a kind of reactor-loop and its voltage-stablizer
Circuit.
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 voltage-stablizer 4 and reactor cooling
Agent pressure is controlled is placed in 1 lower part of pressure vessel, two steamings with the ancillary equipment and pipeline needed for overpressure protection, reactor core
Vapour generator 2 and two main pumps 3 are symmetrically connected on outside pressure vessel 1 respectively by " cross ", provide cooling agent circulation power,
Voltage-stablizer 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；
Weld seam between above-mentioned existing product inner sleeve 51 and spray tube is difficult to realize the in-service inspection of weld seam during overhaul
It looks into, 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 reactor-loop and its voltage-stablizer spray
Drench circuit.
Technical solution is used by the utility model solves its technical problem：A kind of primary Ioops voltage-stablizer is constructed to spray back
Road, 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 circuit includes the first spray branch；
The first spray branch road is equipped with the first spray pump, and one end of the first spray branch is corresponding with the main pump
The outer tube inside connect, the other end connect with the inner cavity of the voltage-stablizer.
Preferably, the first spray branch road is additionally provided with first entrance valve, and the first entrance valve is located at described first
On pipeline between spray pump and the corresponding outer tube.
Preferably, the first spray branch road is additionally provided with the first non-return valve, and first non-return valve is arranged on described the
On pipeline between one spray pump and the voltage-stablizer.
Preferably, the first spray branch road is additionally provided with the first regulating valve, and first regulating valve is arranged on described the
On pipeline between one non-return valve and the voltage-stablizer.
Preferably, the primary Ioops include two steam generators and two main pumps,
Two steam generators, two main pumps are connected to outside the pressure vessel, the voltage-stablizer with
The wherein one steam generator connection, is connected between each main pump and the pressure vessel by double-layer sleeve structure
It connects；
The spray circuit further includes the second spray branch, and the second spray branch road is equipped with the second spray pump, described
It is connected inside one end outer tube corresponding with main pump another described of second spray branch, the other end and the voltage-stablizer
Inner cavity connection；
The second spray branch road is additionally provided with second entrance valve, the second entrance valve be located at second spray pump with
On pipeline between the corresponding outer tube.
Preferably, the second spray branch road is additionally provided with the second non-return valve, and second non-return valve is arranged on described the
On pipeline between two spray pumps and the voltage-stablizer.
Preferably, the second spray branch road is additionally provided with the second regulating valve, and second regulating valve is arranged on described the
On pipeline between two non-return valves and the voltage-stablizer.
Preferably, the first spray branch, second corresponding with voltage-stablizer one end of spray branch are incorporated into same
On main pipeline, then it connect with the voltage-stablizer.
The utility model also constructs a kind of nuclear reactor primary Ioops system, and circuit is sprayed including the voltage-stablizer.
Preferably, two steam generators are symmetricly set on the both sides of the pressure vessel, two main pumps pair
Title is arranged on the both sides of the pressure vessel, and two steam generators and two main pumps are in the pressure vessel
Be staggered 90 degree of settings in circumferential direction.
Implement the reactor-loop of the utility model and its voltage-stablizer spray circuit, have the advantages that：This spray
The spray circuit of leaching system is directly connect with outer tube, without outer tube access inner sleeve is needed guiding through, improves outer tube and one
The integrality on circuit pressure boundary；Meanwhile reduce the design difficulty of internal and external casing；Installation, the maintenance of inner sleeve can also be facilitated
And inservice inspection.
In addition, spray pump is separately provided in each branch provides pressure head for voltage-stablizer, do not depend on main pump and pressure head, spray system are provided
The reliability enhancing of system.
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 the structural principle signal of the reactor-loop and voltage-stablizer spray circuit in the utility model embodiment
Figure；
Fig. 2 is the principle schematic diagram of the reactor-loop and its voltage-stablizer spray circuit in background technology.
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.
The spray circuit 6 that cooling agent is injected into voltage-stablizer 4 is equipped on primary Ioops, spray circuit 6 includes being arranged in parallel
First spray branch 61, second spray branch 62.First spray branch 61 is equipped with the first spray pump 611, the first spray branch
The one end on road 61 is connected with 3 corresponding 52 inside of outer tube of main pump, and the other end is connect with the inner cavity of voltage-stablizer 4；Second spray
Drench branch 62 be equipped with the second spray pump 621, second spray branch 62 one end in another 3 corresponding outer tube 52 of main pump
Portion connects, and the other end is connect with the inner cavity of voltage-stablizer 4.
This spray circuit 6 is directly connect with outer tube 52, is accessed inner sleeve 51 without outer tube 52 is needed guiding through, is improved housing
Pipe 52 and the integrality of primary Ioops pressure boundary；Meanwhile reduce the design difficulty of internal and external casing 52；Inner sleeve can also be facilitated
51 installation, maintenance and inservice inspection.In addition, spray pump is separately provided in each branch provides pressure head for voltage-stablizer 4, do not depend on
Main pump 3 provides pressure head, the reliability enhancing of spray system.
This spray circuit 6 drives spray without using the pressure head of main pump 3, in addition using two spray pumps, one when normal
Spare, an operation nor affects on spray function, the reliability of lifting system when main pump 3 is stopped transport.
In other embodiments, the first spray branch 61 or the second spray branch 62 also can only be separately provided, can not depend on
Main pump 3 provides cooling agent spray to voltage-stablizer 4.Also a steam generator 2 and one only can be only connected outside pressure vessel 1
A main pump 3, corresponding, spray circuit 6 then only sets the first spray branch 61 or second to spray a branch in branch 62.
First entrance valve 612 is additionally provided on first spray branch 61, first entrance valve 612 is located at 611 He of the first spray pump
On pipeline between corresponding outer tube 52.The first non-return valve 613 and the first regulating valve are additionally provided on first spray branch 61
614, the first non-return valve 613 is arranged on the pipeline between the first spray pump 611 and voltage-stablizer 4, and the first regulating valve 614 is set
On pipeline between the first non-return valve 613 and voltage-stablizer 4.
Second entrance valve 622 is additionally provided on second spray branch 62, second entrance valve 622 is located at 621 He of the second spray pump
On pipeline between corresponding outer tube 52.
The second non-return valve 623 and the second regulating valve 624 are additionally provided on second spray branch 62, the second non-return valve 623 is set
On pipeline between the second spray pump 621 and voltage-stablizer 4, the second regulating valve 624 is arranged on the second non-return valve 623 and voltage-stablizer
On pipeline between 4.
Spray system utilizes spray pump and regulating valve, can adjust spray flux, promotes safety；Two spray branches are expired
Sufficient spray system designs single failure criteria, promotes the reliability of spray system.
Preferably, the first spray branch 61, second sprays branch 62 and is incorporated into same supervisor with 4 corresponding one end of voltage-stablizer
On road, then it connect with voltage-stablizer 4.In other embodiments, the first spray branch 61, second, which sprays branch 62, also can respectively connect
Onto voltage-stablizer 4, respectively sprayed to voltage-stablizer 4.
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 reactor-loop voltage-stablizer sprays circuit, which is characterized in that the primary Ioops include pressure vessel (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)；
Spray circuit (6) includes the first spray branch (61)；
The first spray branch (61) is equipped with the first spray pump (611), one end of the first spray branch (61) and institute
It states and is connected inside the corresponding outer tube (52) of main pump (3), the other end is connect with the inner cavity of the voltage-stablizer (4).
2. reactor-loop voltage-stablizer according to claim 1 sprays circuit, which is characterized in that the first spray branch
It is additionally provided with first entrance valve (612) on road (61), the first entrance valve (612) is positioned at first spray pump (611) and right
On pipeline between the outer tube (52) answered.
3. reactor-loop voltage-stablizer according to claim 1 sprays circuit, which is characterized in that the first spray branch
Be additionally provided with the first non-return valve (613) on road (61), first non-return valve (613) be arranged on first spray pump (611) and
On pipeline between the voltage-stablizer (4).
4. reactor-loop voltage-stablizer according to claim 3 sprays circuit, which is characterized in that the first spray branch
Be additionally provided with the first regulating valve (614) on road (61), first regulating valve (614) be arranged on first non-return valve (613) and
On pipeline between the voltage-stablizer (4).
5. reactor-loop voltage-stablizer according to claim 1 sprays circuit, which is characterized in that the primary Ioops include
Two steam generators (2) and two main pumps (3),
Two steam generators (2), two main pumps (3) are connected to the pressure vessel (1) outside, the voltage stabilizing
Device (4) is connect with wherein one steam generator (2), is passed through between each main pump (3) and the pressure vessel (1)
Double-layer sleeve structure (5) connects；
Spray circuit (6) further includes the second spray branch (62), and the second spray branch (62) is equipped with the second spray
It pumps (621), one end outer tube (52) corresponding with main pump another described (3) of the second spray branch (62) is internal
Connection, the other end are connect with the inner cavity of the voltage-stablizer (4)；
It is additionally provided with second entrance valve (622) on second spray branch (62), the second entrance valve (622) is positioned at described the
On pipeline between two spray pumps (621) and the corresponding outer tube (52).
6. reactor-loop voltage-stablizer according to claim 5 sprays circuit, which is characterized in that the second spray branch
Be additionally provided with the second non-return valve (623) on road (62), second non-return valve (623) be arranged on second spray pump (621) and
On pipeline between the voltage-stablizer (4).
7. reactor-loop voltage-stablizer according to claim 6 sprays circuit, which is characterized in that the second spray branch
Be additionally provided with the second regulating valve (624) on road (62), second regulating valve (624) be arranged on second non-return valve (623) and
On pipeline between the voltage-stablizer (4).
8. reactor-loop voltage-stablizer according to claim 5 sprays circuit, which is characterized in that the first spray branch
Road (61), second spray branch (62) corresponding with the voltage-stablizer (4) one end are incorporated on same main pipeline, then with it is described surely
Depressor (4) connects.
9. a kind of reactor-loop, which is characterized in that spray circuit including claim 1 to 8 any one of them voltage-stablizer.
10. reactor-loop according to claim 9, which is characterized in that two steam generators (2) symmetrically set
It puts in the both sides of the pressure vessel (1), two main pumps (3) are symmetricly set on the both sides of the pressure vessel (1), and two
Steam generator described in platform (2) and two main pumps (3) are staggered 90 degree of settings in the circumferential direction of the pressure vessel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416805.XU CN207517366U (en) | 2017-10-27 | 2017-10-27 | Reactor-loop and its voltage-stablizer spray circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416805.XU CN207517366U (en) | 2017-10-27 | 2017-10-27 | Reactor-loop and its voltage-stablizer spray circuit |
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| Publication Number | Publication Date |
|---|---|
| CN207517366U true CN207517366U (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721416805.XU Active CN207517366U (en) | 2017-10-27 | 2017-10-27 | Reactor-loop and its voltage-stablizer spray circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2022237216A1 (en) * | 2021-05-10 | 2022-11-17 | 中广核研究院有限公司 | Reactor primary circuit spray system |
-
2017
- 2017-10-27 CN CN201721416805.XU patent/CN207517366U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2022237216A1 (en) * | 2021-05-10 | 2022-11-17 | 中广核研究院有限公司 | Reactor primary circuit spray system |
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