CN203070785U - Integrated reactor with double-layer structure on top - Google Patents

Integrated reactor with double-layer structure on top Download PDF

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Publication number
CN203070785U
CN203070785U CN2013200172348U CN201320017234U CN203070785U CN 203070785 U CN203070785 U CN 203070785U CN 2013200172348 U CN2013200172348 U CN 2013200172348U CN 201320017234 U CN201320017234 U CN 201320017234U CN 203070785 U CN203070785 U CN 203070785U
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China
Prior art keywords
pressure vessel
top cover
cylindrical shell
support platform
double
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Withdrawn - After Issue
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CN2013200172348U
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Chinese (zh)
Inventor
林千
司胜义
廖亮
申屠军
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Shanghai Nuclear Engineering Research and Design Institute Co Ltd
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Shanghai Nuclear Engineering Research and Design Institute Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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Abstract

The utility model provides an integrated reactor with a double-layer structure on the top. The integrated reactor comprises a reactor core arranged inside a pressure container, a built-in steam generator, a main pump and a control stick driving mechanism, wherein a barrel body at the upper part of the pressure container and an annular equipment supporting platform form an integrated structure; an inner top cover of the cambered pressure container is connected to the equipment supporting platform through flanges of the inner top cover of the pressure container and the equipment supporting platform; the control stick driving mechanism is arranged on the inner top cover of the pressure container; the main pump is arranged on the equipment supporting platform; the reactor core and the built-in steam generator are arranged below the equipment supporting platform; and an outer top cover of the pressure container is arranged on the top of the barrel body at the upper part of the pressure container and is connected with the barrel body at the upper part of the pressure container through flanges of the outer top cover of the pressure container and the barrel body at the upper part of the pressure container. According to the utility model, an integrated reactor structure design scheme has high safety and high engineering actionability.

Description

A kind of top has double-deck integral reactor
Technical field
The utility model relates to the design of novel nuclear reactor, is specifically related to a kind of top and has double-deck integral reactor form.
Background technology
The characteristics that integral reactor is different from conventional loop type reactor be with main equipments such as steam generator, main pump, control rod drive mechanisms (CRD) directly and pressure vessel be combined into an integral body, thereby make the main coolant system more compact structure of reactor, be conducive to the miniaturization of nuclear reactor; Owing to removed the connecting tube between these equipment, the frequency that the cut accident takes place reduces the security that is conducive to improve nuclear reactor.
International and domestic research and development institution has proposed the integral reactor of various ways, comprises the IRIS reactor of the leading research and development of US Westinghouse company, the SMART reactor of Korea S Institute for Atomic Research research and development, the MRX reactor of Japan Atomic Energy Research Institute's research and development etc.
Arrangement according to main equipments such as the main pump of these integral reactors, control rod drive mechanisms (CRD) can be summarized as these reactors two classes: sectoral integration and fully integratedization, the basic structure of these two kinds of reactors are respectively as depicted in figs. 1 and 2.In the reactor of sectoral integration, equipment such as main pump motor or control rod drive mechanisms (CRD) still are arranged in outside the pressure vessel; In the reactor of fully integratedization, equipment such as main pump and control rod drive mechanisms (CRD) are arranged in the pressure vessel fully, and are immersed in the Main Coolant.
In the reactor of sectoral integration, owing to equipment component is arranged in outside the pressure vessel, so the through hole of pressure vessel is more, has increased the risk of main coolant system pressure boundary breakage, has reduced the security of reactor.
In the reactor of fully integratedization, all main equipments all are arranged in the pressure vessel, thereby reduced the security that runs through and strengthened reactor of pressure vessel, but because electrical equipments such as main pump, control rod drive mechanisms (CRD) are immersed in the radioactive Main Coolant environment in high temperate zone the working environment very severe of equipment.On the one hand, all kinds of main pumps of prior art and control rod drive mechanisms (CRD) can not satisfy the condition of work requirement of harshness like this, and therefore the engineering construction that should design is relatively poor; On the other hand, these equipment are immersed in the radioactive Main Coolant in high temperate zone, the reliability of equipment is relatively poor, equipment inservice inspection and maintenance are inconvenient.
Summary of the invention
The purpose of this utility model is to provide a kind of shortcoming of avoiding above-mentioned fully integratedization reactor, and the top that has further strengthened nuclear reactor safety has double-deck integral reactor.
A kind of top described in the utility model has double-deck integral reactor, and it comprises reactor core, built-in steam generator, main pump and the control rod drive mechanisms (CRD) that is arranged in the pressure vessel; Pressure vessel top cylindrical shell constitutes one-piece construction with the device support platform of annular, and the pressure vessel internal head cover of arc is connected the device support platform by the flange of pressure vessel internal head cover and device support platform; Control rod drive mechanisms (CRD) is arranged on the pressure vessel internal head cover, and main pump is arranged on the device support platform; Reactor core and built-in steam generator are arranged in device support platform below;
The outer top cover of pressure vessel is arranged on pressure vessel top cylinder top, and is connected with pressure vessel top cylindrical shell with the flange of pressure vessel top cylindrical shell by the outer top cover of pressure vessel.
Aforesaid a kind of top has double-deck integral reactor, its described pressure vessel internal head cover and device support platform top cover and pressure vessel top cylindrical shell outside the pressure vessel top constitutes pressure boundary, first road, pressure vessel constitute pressure boundary, second road at the pressure vessel top, formed the airtight cavity at pressure vessel top in this twice pressure boundary, main pump, control rod drive mechanisms (CRD) are arranged in the airtight cavity; Preliminary filling blanket gas in airtight cavity.
Aforesaid a kind of top has double-deck integral reactor, the pipeline that its many groups link to each other with Main Coolant runs through device support platform, pressure vessel top cylindrical shell successively, extend to outside the pressure vessel, with pipeline that Main Coolant links to each other on also be provided with isolation valve or non-return valve, and isolation valve or non-return valve are arranged in the airtight cavity.
Aforesaid a kind of top has double-deck integral reactor, and its described device support platform is the ring plate structure, at the ring plate upper and lower deep floor is set; Perhaps described device support platform is the ring plate structure, and the ring plate below is the arc corner.
Aforesaid a kind of top has double-deck integral reactor, its on pressure vessel top and the cylindrical shell below the device support platform pressure vessel middle and upper part joint flange is set one.
Another kind of top described in the utility model has double-deck integral reactor, and it comprises reactor core, built-in steam generator, main pump and the control rod drive mechanisms (CRD) that is arranged in the pressure vessel; Pressure vessel top cylindrical shell and plate top cover constitute one-piece construction, plate shaped top cover double as device support platform; Main pump and control rod drive mechanisms (CRD) are arranged on the plate top cover; Reactor core and built-in steam generator are arranged in plate top cover below; The outer top cover of pressure vessel is arranged on pressure vessel top cylinder top, and is connected with pressure vessel top cylindrical shell with the flange of pressure vessel top cylindrical shell by the outer top cover of pressure vessel.
Aforesaid a kind of top has double-deck integral reactor, its described plate shaped top cover is the seal-off pressure border, first road at pressure vessel top, the outer top cover of pressure vessel and pressure vessel top cylindrical shell constitute seal-off pressure border, second road at the pressure vessel top, formed the airtight cavity at pressure vessel top in this twice seal-off pressure border, main pump, control rod drive mechanisms (CRD) are arranged in the above-mentioned airtight cavity; Preliminary filling blanket gas in airtight cavity.
Aforesaid a kind of top has double-deck integral reactor, the pipeline that its many groups link to each other with Main Coolant runs through plate top cover, pressure vessel top cylindrical shell successively, extend to outside the pressure vessel, with pipeline that Main Coolant links to each other on also be provided with isolation valve or non-return valve, and isolation valve or non-return valve are arranged in the airtight cavity.
Aforesaid a kind of top has double-deck integral reactor, and it arranges pressure vessel middle and upper part joint flange again one on pressure vessel top and the cylindrical shell below the plate top cover.
Aforesaid a kind of top has double-deck integral reactor, and its described plate top cover is circular slab construction, at the dull and stereotyped upper and lower of circle deep floor is set; Perhaps described plate top cover is circular slab construction, and circular dull and stereotyped below is the arc corner.
Effect of the present utility model is:
A kind of top described in the utility model has double-deck integral reactor; it is by arranging inside and outside bi-layer tip cap; and inside and outside top cover is connected with pressure vessel top cylindrical shell with the device support platform respectively by seal flange; constitute twice seal-off pressure border (pressure boundary, first road is internal head cover and device support platform at the pressure vessel top; pressure boundary, second road is outer top cover and pressure vessel top cylindrical shell), thus depth, duplicate protection provided for reactor.Owing to have the bi-layer tip cap structure, form twice radioactivity entity isolation barrier at the pressure vessel top, even pressure boundary, first road takes place to leak or break, the band radiomaterial that discharges is still contained by the second road physical barrier, thereby stops radioactivity to discharge to containment and environment.
Another kind of top described in the utility model has double-deck integral reactor; it arranges plate top cover and the outer top cover of pressure vessel; plate shaped top cover double as device support platform; and plate shaped top cover is connected with pressure vessel top cylindrical shell respectively with the outer top cover of pressure vessel; constitute twice seal-off pressure border (pressure boundary, first road is plate shaped top cover and pressure vessel top cylindrical shell at the pressure vessel top; pressure boundary, second road is the outer top cover of pressure vessel and pressure vessel top cylindrical shell), thus depth, duplicate protection provided for reactor.Because the top has double-decker, form twice radioactivity entity isolation barrier at the pressure vessel top, even pressure boundary, first road takes place to leak or break, the band radiomaterial that discharges is still contained by the second road physical barrier, thereby stops radioactivity to discharge to containment and environment.
The utility model with equipment layout such as main pump, control rod drive mechanisms (CRD) in the closed cavity at pressure vessel top, realized the design philosophy of fully integratedization, with respect to the reactor of fully integratedization among Fig. 2, avoided equipment directly to be immersed in the radioactive Main Coolant in high temperate zone, thereby main pump, control rod drive mechanisms (CRD) need not to move under rigorous environment, the equipment of prior art can satisfy the requirement of service condition, the utlity model has good engineering construction; And the reliability of these equipment is protected, and overhauling, safeguard in labour of equipment is also easier.
Because main pump, control rod drive mechanisms (CRD), the pipeline that links to each other with Main Coolant etc. all are arranged on the pressure boundary, first road at pressure vessel top, the pressure vessel middle and lower part does not have any running through, so the integrality of pressure vessel middle and lower part structure is further enhanced.In a word, the utility model has proposed advanced design concept from keeping reactor pressure border integrality, reduction radioactivity to discharge, reduce coolant loss damage sequence aspect, is a kind of integral reactor structural design scheme higher-security, better engineering construction that has.
Description of drawings
Fig. 1 is sectoral integration reactor structure synoptic diagram;
Fig. 2 is fully integratedization reactor structure synoptic diagram;
Fig. 3 is a kind of integral reactor structural representation with bi-layer tip cap described in the utility model;
Fig. 4 is stiffening rib template device support platform synoptic diagram;
Fig. 5 is arc corner type device support platform synoptic diagram;
Fig. 6 has the integral reactor structural representation of bi-layer tip cap for another kind described in the utility model;
Fig. 7 is the plate top cover synoptic diagram of stiffening rib template;
Fig. 8 is the plate top cover synoptic diagram of arc corner type;
Among the figure: 1. reactor core; 2. pressure vessel; 3. built-in steam generator; 5. main pump; 6. control rod drive mechanisms (CRD); 7. pressure vessel top cylindrical shell; 8. device support platform; 9. the airtight cavity at pressure vessel top; 10. pressure vessel internal head cover; 11. the outer top cover of pressure vessel; 12. the flange of pressure vessel internal head cover and device support platform; 13. the flange of the outer top cover of pressure vessel and pressure vessel top cylindrical shell; 14. deep floor; 15. arc corner; 16. the flange of pressure vessel middle and upper part; A 17. loop associated line; 18. isolation valve or non-return valve; 19. plate top cover.
Embodiment
Below in conjunction with the drawings and specific embodiments a kind of integral reactor with bi-layer tip cap described in the utility model is further described.
Embodiment 1
As shown in Figure 3, a kind of top described in the utility model has double-deck integral reactor, and equipment such as its reactor core 1 and built-in steam generator 3, main pump 5, control rod drive mechanisms (CRD) 6 all are installed in the pressure vessel 2.
Wherein, reactor core 1 and built-in steam generator 3 are arranged in device support platform 8 belows.
Pressure vessel top cylindrical shell 7 constitutes one-piece construction with the device support platform 8 of annular, and the pressure vessel internal head cover 10 of arc is connected the through hole edge at device support platform 8 centers by the flange 12 of pressure vessel internal head cover and device support platform.Control rod drive mechanisms (CRD) 6 is arranged on pressure vessel internal head cover 10 tops, and control rod assembly drive wire passes pressure vessel internal head cover 10.Main pump 5 is arranged on the device support platform 8, and main pump shaft and impeller pass device support platform 8.
The outer top cover 11 of pressure vessel is arranged on cylindrical shell 7 tops, pressure vessel top, and is connected with pressure vessel top cylindrical shell 7 with the flange 13 of pressure vessel top cylindrical shell by the outer top cover of pressure vessel.
Pressure vessel internal head cover and device support platform top cover and pressure vessel top cylindrical shell outside the pressure vessel top constitutes pressure boundary, first road, pressure vessel constitute pressure boundary, second road at the pressure vessel top, formed the airtight cavity 9 at pressure vessel top in this twice pressure boundary, main pump 5, control rod drive mechanisms (CRD) 6 are arranged in the airtight cavity 9.Gas by preliminary filling certain pressure in airtight cavity 9, reduce or eliminate the pressure reduction in the outside in the pressure boundary, first road, the sealing integrity of the flange on the pressure boundary, first road, various weld seams etc. is protected, thus the possibility that reduces or eliminate the generation leakage of pressure boundary, first road or break; Preliminary filling blanket gas (as nitrogen, inert gas etc.) can further reduce inside cavity equipment and parts oxidation corrosion, avoid the spontaneous combustion of combustible.
The pipeline 17 that many groups link to each other with Main Coolant runs through device support platform 8, pressure vessel top cylindrical shell 7 successively, extend to outside the pressure vessel, on the pipeline 17 that links to each other with Main Coolant, also be provided with isolation valve or non-return valve 18, and isolation valve or non-return valve 18 are arranged in the airtight cavity 9.
Because the gas of preliminary filling certain pressures in the airtight cavity 9, reduce or eliminated the possibilities that the pipeline 17 that links to each other with Main Coolant breaks in airtight cavity 9 inside.If the pipeline 17 that links to each other with Main Coolant breaks at the pipeline section in the pressure vessel outside, can be by closing isolation valve or non-return valve 18 auto-closings, thus stopped the release of radiomaterial to containment, and the forfeiture of termination Main Coolant.
As shown in Figure 4 and Figure 5, device support platform 8 is the ring plate structure, can deep floor 14 be set at the ring plate upper and lower, and perhaps the ring plate below is arc corner 15.Device support platform 8 can further strengthen the intensity of vessel internal pressure force boundary.
The utility model is further to strengthen the interior equipment of pressure vessel and auditability and the maintenanceability of parts, and pressure vessel middle and upper part joint flange 16 can be set one on the cylindrical shell below 8 on pressure vessel 2 tops and device support platform again.When needed, can open the interior equipment of 16 pairs of heaps of pressure vessel middle and upper part joint flange overhauls and changes.Such design also will be of value to segmentation manufacturing, dismounting and the transportation of pressure vessel.
Embodiment 2
As shown in Figure 6, another kind of top described in the utility model has double-deck integral reactor, and major equipments such as its reactor core 1, built-in steam generator 3, main pump 5, control rod drive mechanisms (CRD) 6 are directly installed in the pressure vessel 2.
Wherein, reactor core 1 and built-in steam generator 3 are arranged in plate top cover 19 belows.
Pressure vessel top cylindrical shell 7 constitutes one-piece construction, plate shaped top cover 19 double as device support platforms with plate top cover 19.At the cylindrical shell of plate top cover below 19 flange 16 of pressure vessel middle and upper part is set, so that the dismounting of plate top cover 19.Main pump 5 and control rod drive mechanisms (CRD) 6 are arranged on the plate top cover 19, and main pump shaft and impeller and control rod assembly drive wire pass plate top cover 19.
The outer top cover 11 of pressure vessel is arranged on cylindrical shell 7 tops, pressure vessel top, and is connected with pressure vessel top cylindrical shell 7 with the flange 13 of pressure vessel top cylindrical shell by the outer top cover of pressure vessel.
Above-mentioned plate shaped top cover 19 is the seal-off pressure borders, first road at pressure vessel top, the outer top cover 11 of pressure vessel constitutes seal-off pressure border, second road with pressure vessel top cylindrical shell 7 at the pressure vessel top, formed the airtight cavity 9 at pressure vessel top in this twice seal-off pressure border, main pump 5, control rod drive mechanisms (CRD) 6 are arranged in the above-mentioned airtight cavity 9.Gas by preliminary filling certain pressure in airtight cavity 9, reduce or eliminate the pressure reduction in the outside in the pressure boundary, first road, the sealing integrity of the flange on the pressure boundary, first road, various weld seams etc. is protected, thus the possibility that reduces or eliminate the generation leakage of pressure boundary, first road or break; Preliminary filling blanket gas (as nitrogen, inert gas etc.) can further reduce inside cavity equipment and parts oxidation corrosion, avoid the spontaneous combustion of combustible.
The pipeline 17 that many groups link to each other with Main Coolant runs through plate top cover 19, pressure vessel top cylindrical shell 7 successively, extend to outside the pressure vessel, on the pipeline 17 that links to each other with Main Coolant, also be provided with isolation valve or non-return valve 18, and isolation valve or non-return valve 18 are arranged in the airtight cavity 9.
Because the gas of preliminary filling certain pressures in the airtight cavity 9, reduce or eliminated the possibilities that the pipeline 17 that links to each other with Main Coolant breaks in airtight cavity 9 inside.If the pipeline 17 that links to each other with Main Coolant breaks at the pipeline section in the pressure vessel outside, can be by closing isolation valve or non-return valve 18 auto-closings, thus stopped the release of radiomaterial to containment, and the forfeiture of termination Main Coolant.
As shown in Figure 7 and Figure 8, plate top cover 19 is circular slab construction, can deep floor 14 be set at the dull and stereotyped upper and lower of circle, and perhaps circular dull and stereotyped below is arc corner 15.Plate top cover 19 can further strengthen the intensity of vessel internal pressure force boundary.
Compare with embodiment 1, present embodiment has further been cancelled pressure vessel internal head cover 10, directly adopts all-in-one-piece plate shaped top cover 19.If be provided with pressure vessel internal head cover 10, in the process of reloading, need open inside and outside top cover, and the device support platform does not need dismounting; If the cancellation internal head cover needs in the process of reloading plate shaped top cover 19, pressure vessel top structure and associated line complete removal.

Claims (9)

1. a top has double-deck integral reactor, and it comprises reactor core (1), built-in steam generator (3), main pump (5) and the control rod drive mechanisms (CRD) (6) that is arranged in the pressure vessel (2), it is characterized in that:
Pressure vessel top cylindrical shell (7) constitutes one-piece construction with the device support platform (8) of annular, and the pressure vessel internal head cover (10) of arc is connected device support platform (8) by the flange (12) of pressure vessel internal head cover and device support platform; Control rod drive mechanisms (CRD) (6) is arranged on the pressure vessel internal head cover (10), and main pump (5) is arranged on the device support platform (8); Reactor core (1) and built-in steam generator (3) are arranged in device support platform (8) below;
The outer top cover (11) of pressure vessel is arranged on pressure vessel top cylindrical shell (7) top, and is connected with pressure vessel top cylindrical shell (7) with the flange (13) of pressure vessel top cylindrical shell by the outer top cover of pressure vessel.
2. a kind of top according to claim 1 has double-deck integral reactor, it is characterized in that: described pressure vessel internal head cover (10) constitutes pressure boundary, second road with device support platform (8) top cover (11) outside the pressure vessel top constitutes pressure boundary, first road, pressure vessel with pressure vessel top cylindrical shell (7) at the pressure vessel top, formed the airtight cavity (9) at pressure vessel top in this twice pressure boundary, main pump (5), control rod drive mechanisms (CRD) (6) are arranged in the airtight cavity (9); Preliminary filling blanket gas in airtight cavity (9).
3. a kind of top according to claim 1 and 2 has double-deck integral reactor, it is characterized in that: the pipeline (17) that many groups link to each other with Main Coolant runs through device support platform (8), pressure vessel top cylindrical shell (7) successively, extend to outside the pressure vessel, on the pipeline that links to each other with Main Coolant (17), also be provided with isolation valve or non-return valve (18), and isolation valve or non-return valve (18) are arranged in the airtight cavity (9).
4. a kind of top according to claim 1 and 2 has double-deck integral reactor, it is characterized in that: described device support platform (8) is the ring plate structure, at the ring plate upper and lower deep floor (14) is set; Perhaps described device support platform (8) is the ring plate structure, and the ring plate below is arc corner (15).
5. a kind of top according to claim 1 and 2 has double-deck integral reactor, it is characterized in that: on pressure vessel (2) top and the cylindrical shell below the device support platform (8) one pressure vessel middle and upper part joint flange (16) is set.
6. a top has double-deck integral reactor, and it comprises reactor core (1), built-in steam generator (3), main pump (5) and the control rod drive mechanisms (CRD) (6) that is arranged in the pressure vessel (2), it is characterized in that:
Pressure vessel top cylindrical shell (7) constitutes one-piece construction with plate top cover (19), plate shaped top cover (19) double as device support platform, at the cylindrical shell of plate top cover below 19 flange (16) of pressure vessel middle and upper part is set, so that the dismounting of plate top cover (19); Main pump (5) and control rod drive mechanisms (CRD) (6) are arranged on the plate top cover (19); Reactor core (1) and built-in steam generator (3) are arranged in plate top cover (19) below;
The outer top cover (11) of pressure vessel is arranged on pressure vessel top cylindrical shell (7) top, and is connected with pressure vessel top cylindrical shell (7) with the flange (13) of pressure vessel top cylindrical shell by the outer top cover of pressure vessel.
7. a kind of top according to claim 6 has double-deck integral reactor, it is characterized in that: described plate shaped top cover (19) is the seal-off pressure border, first road at pressure vessel top, the outer top cover (11) of pressure vessel constitutes seal-off pressure border, second road with pressure vessel top cylindrical shell (7) at the pressure vessel top, formed the airtight cavity (9) at pressure vessel top in this twice seal-off pressure border, main pump (5), control rod drive mechanisms (CRD) (6) are arranged in the above-mentioned airtight cavity (9); Preliminary filling blanket gas in airtight cavity (9).
8. have double-deck integral reactor according to claim 6 or 7 described a kind of tops, it is characterized in that: the pipeline (17) that many groups link to each other with Main Coolant runs through plate top cover (19), pressure vessel top cylindrical shell (7) successively, extend to outside the pressure vessel, on the pipeline that links to each other with Main Coolant (17), also be provided with isolation valve or non-return valve (18), and isolation valve or non-return valve (18) are arranged in the airtight cavity (9).
9. have double-deck integral reactor according to claim 6 or 7 described a kind of tops, it is characterized in that: described plate top cover (19) is circular slab construction, at the dull and stereotyped upper and lower of circle deep floor (14) is set; Perhaps described plate top cover (19) is circular slab construction, and circular dull and stereotyped below is arc corner (15).
CN2013200172348U 2013-01-14 2013-01-14 Integrated reactor with double-layer structure on top Withdrawn - After Issue CN203070785U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103187108A (en) * 2013-01-14 2013-07-03 上海核工程研究设计院 Integral reactor with top double-layer structure
CN105118532A (en) * 2015-09-11 2015-12-02 中广核(北京)仿真技术有限公司 Integrated reactor
CN105976878A (en) * 2016-07-05 2016-09-28 上海核工程研究设计院 Integrated nuclear energy equipment
CN106531238A (en) * 2016-12-15 2017-03-22 中国核动力研究设计院 Main pump pressure vessel provided with double layers of casings
CN112923109A (en) * 2021-03-22 2021-06-08 上海核工程研究设计院有限公司 Safety relief valve door system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103187108A (en) * 2013-01-14 2013-07-03 上海核工程研究设计院 Integral reactor with top double-layer structure
CN103187108B (en) * 2013-01-14 2016-01-27 上海核工程研究设计院 A kind of top is with double-deck integral reactor
CN105118532A (en) * 2015-09-11 2015-12-02 中广核(北京)仿真技术有限公司 Integrated reactor
CN105976878A (en) * 2016-07-05 2016-09-28 上海核工程研究设计院 Integrated nuclear energy equipment
CN106531238A (en) * 2016-12-15 2017-03-22 中国核动力研究设计院 Main pump pressure vessel provided with double layers of casings
CN112923109A (en) * 2021-03-22 2021-06-08 上海核工程研究设计院有限公司 Safety relief valve door system
CN112923109B (en) * 2021-03-22 2024-04-09 上海核工程研究设计院股份有限公司 Safety pressure relief valve system

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130717

Effective date of abandoning: 20160127

C25 Abandonment of patent right or utility model to avoid double patenting