CN205038969U - Integration top cap suitable for PWR nuclear power plant - Google Patents
Integration top cap suitable for PWR nuclear power plant Download PDFInfo
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- CN205038969U CN205038969U CN201520717505.XU CN201520717505U CN205038969U CN 205038969 U CN205038969 U CN 205038969U CN 201520717505 U CN201520717505 U CN 201520717505U CN 205038969 U CN205038969 U CN 205038969U
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- top cover
- pull bar
- power plant
- nuclear power
- antidetonation
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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 an integration top cap suitable for PWR nuclear power plant, include: the pressure vessel top cap, the ring flange, the ring flange pass through the bolt with pressure vessel header connection, the support column, the lower extreme of support column with the ring flange is connected, antidetonation bearing structure, the antidetonation bearing structure with the support column is connected, the antidetonation pull rod, antidetonation pull rod one end is installed on the antidetonation bearing structure, the other end is installed on the concrete built -in fitting of pond wall, the top cap hoist, the top cap hoist is used for the cooperation with hoisting accessory, will the pressure vessel top cap is hoist, control rod drive mechanism, control actuating mechanism install in the pressure vessel top cap with between the antidetonation bearing structure. Accord with the utility model discloses an integration top cap suitable for PWR nuclear power plant can be integrated into the integrative operation of reloading in order to simplify the reactor with several equipment or the part that the different functional requirement of top are piled to the reactor.
Description
Technical field
The utility model relates to a kind of integrated top cover being applicable to PWR nuclear power plant.
Background technology
Nuclear reactor is positioned at the containment of nuclear power plant, is one of key equipment of nuclear steam supply system, is made up of multiple subsets such as pressure vessel, in-pile component, control rod drive mechanisms (CRD) (CRDM), pressure vessels top covers.Reload the period heap Integral lifting of roof construction, control rod drive mechanisms (CRD) Horizontal Seismic support, the centralized arrangement of cable and dismounting, overall bolt stretching machine (split type) the function such as lifting, personnel's radiation shield of period of reloading cannot be realized by pressure vessels top cover one.
In the U.S. western room AP1000 integration heap roof construction enclose cylinder both assume responsibility for function of shielding and control rod drives structure ventilation boundary function, also assume responsibility for integrated support function; Meanwhile, blower fan structure is also with integral lifting.These all cause its one-piece construction weight large, add the difficulty of lifting.Meanwhile, adopt Split type bolt drawing machine because western room AP1000 designs, which increases the time of lifting operation.
In the design of the design antidetonation assembly of patent CN203026159U " a kind of integration heap roof construction being applicable to presurized water reactor ", reload in process, cable bridge assembly and external cooling duct and blower fan all need to remove and hang out with the needs of satisfied overall bolt stretching machine, add the running time of reloading.Pile roof construction for the presurized water reactor integration of enclosing barrel structure, the top cover suspender crane capacity of this structure shows slightly not enough.
Along with the development of shield analysis technology, the radiation shield limit value more and more refinement in Dui Dingge district.AP1000 adopts the shielding design of entirely enclosing cartridge type to seem unreasonable.
Therefore, how to develop a kind of integrated top cover and integrated top cover lifted convenient, lightweightly become problem demanding prompt solution.
Utility model content
The utility model, for the deficiencies in the prior art, proposes a kind of integrated top cover being applicable to PWR nuclear power plant.
The utility model provides a kind of integrated top cover being applicable to PWR nuclear power plant, comprising:
Pressure vessels top cover; Described pressure vessels top cover is positioned at bottom, coordinates with reactor pressure vessel;
Ring flange; Described ring flange is positioned at the top of described pressure vessels top cover, is connected with described pressure vessels top cover by bolt;
Support column; Described support column is positioned at above described ring flange; The lower end of described support column is connected with described ring flange;
Quake-proof supporting structure; Described quake-proof supporting structure rides against the upper end of described support column, is connected with described support column;
Antidetonation pull bar; Described antidetonation pull bar one end is arranged on described quake-proof supporting structure; The other end is arranged on the concrete embedded part of pool wall;
Top cover suspender; Described top cover suspender is arranged on above described pressure vessels top cover, is connected with described pressure vessels top cover, for coordinating with boom hoisting, is sling by described pressure vessels top cover;
Control rod drive mechanisms (CRD); Described control driving mechanism is installed between described pressure vessels top cover and described quake-proof supporting structure, is exposed in external environment, makes the coil of described control rod drive mechanisms (CRD) that natural ventilation methods for cooling can be adopted to cool.
Preferably, the quantity of described support column is multiple; Multiple described support column is along the circumferential direction arranged, around described control rod drive mechanisms (CRD).
Preferably, the two ends of described antidetonation pull bar are equipped with pull bar screw rod joint; Described quake-proof supporting structure and concrete embedded part are equipped with the inserted sheet adapted with described pull bar screw-rod structure; Described inserted sheet inserts described pull bar screw rod joint, and pull bar bearing pin runs through described pull bar screw rod joint and described inserted sheet, is connected by described antidetonation pull bar with quake-proof supporting structure, is connected by described antidetonation pull bar with concrete embedded part.
Preferably, the mode that is threaded connection of described pull bar screw rod joint and described antidetonation pull bar removably connect; The thread rotary orientation of two pull bar screw rod joints at described antidetonation pull bar two ends is contrary.
Preferably, the quantity of described antidetonation pull bar is four; Four described antidetonation pull bars are along the circumferential direction arranged, around described quake-proof supporting structure.
Preferably, described top cover suspender comprises oblique suspension rod; The upper end of described oblique suspension rod is by screw rod jiont treatment on lifting head, and lower end is connected with straight suspension rod by screw rod joint; The lower end of described straight suspension rod is arranged on described pressure vessels top cover.
Preferably, the quantity of described oblique suspension rod is 3; All described with one the straight suspension rod in lower end of each oblique suspension rod is connected; Cross bar is provided with between two adjacent oblique suspension rods.
Preferably, the top of described quake-proof supporting structure is furnished with cable support structure and the panel of wirerope composition; Described panel leaves polygon breach, for the cable in cable support structure from wherein drawing; The top of described quake-proof supporting structure is also provided with cable connection plate; The cable of drawing from described panel arrives corresponding cable connection plate.
Compared with prior art, the utility model has following beneficial effect:
1, meet the integrated top cover being applicable to PWR nuclear power plant of the present utility model, can by several equipment of different function requirements on PRV head package or component integration integral with the operation of reloading simplifying reactor.During reactor cold-refueling, by doing integrated operation with top cover of reactor pressure vessel, realizing the Integral lifting of heap top component, shifting and deposit.Meanwhile, be enormously simplify the take-down time of cable by the centralized arrangement of cable, improve the availability of nuclear power plant
2, meet the integrated top cover being applicable to PWR nuclear power plant of the present utility model, there is the period heap Integral lifting of roof construction that reloads, the Horizontal Seismic of control rod drive mechanisms (CRD) supports, the centralized arrangement of cable and dismounting, overall bolt stretching machine (split type) the function such as lifting, personnel's radiation shield of period of reloading.
3, meet the integrated top cover being applicable to PWR nuclear power plant of the present utility model, CRDM natural ventilation cooling can be met, thus the weight of integrated top cover is greatly reduced.Reload period, integrated top cover can also meet the request for utilization of overall bolt stretching machine.
4, meeting the integrated top cover being applicable to PWR nuclear power plant of the present utility model, except being applicable to reactor pressure vessel, can also other field be applicable to.
Accompanying drawing explanation
Fig. 1 is the schematic diagram being applicable to the integrated top cover of PWR nuclear power plant meeting the utility model preferred embodiment.
Another angle schematic diagram that Fig. 2 is structure shown in Fig. 1.
Fig. 3 is the scheme of installation being applicable to the integrated top cover of PWR nuclear power plant meeting the utility model preferred embodiment.
Fig. 4 is the schematic diagram being applicable to the antidetonation pull bar of the integrated top cover of PWR nuclear power plant meeting the utility model preferred embodiment.
Fig. 5 is the schematic diagram being applicable to the suspender of the integrated top cover of PWR nuclear power plant meeting the utility model preferred embodiment.
Fig. 6 is the schematic diagram being applicable to the lifting head of the integrated top cover of PWR nuclear power plant meeting the utility model preferred embodiment.
Fig. 7 is the schematic diagram being applicable to the cable connection plate of the integrated top cover of PWR nuclear power plant meeting the utility model preferred embodiment.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in further detail the utility model below in conjunction with the drawings and specific embodiments.
As Figure 1-5, the integrated top cover being applicable to PWR nuclear power plant comprises:
Pressure vessels top cover 1; Described pressure vessels top cover 1 is positioned at bottom, coordinates with reactor pressure vessel;
Ring flange 2; Described ring flange 2 is positioned at the top of described pressure vessels top cover 1, is connected with described pressure vessels top cover 1 by bolt;
Support column 3; Described support column 3 is positioned at above described ring flange 2; The lower end of described support column 3 is connected with described ring flange 2;
Quake-proof supporting structure 4; Described quake-proof supporting structure 4 rides against the upper end of described support column 3, is connected with described support column 3;
Antidetonation pull bar 5; Described antidetonation pull bar 5 one end is arranged on described quake-proof supporting structure 4; The other end is arranged on the concrete embedded part 01 of pool wall;
Top cover suspender 6; Described top cover suspender 6 is arranged on above described pressure vessels top cover 1, is connected with described pressure vessels top cover 1, for coordinating with boom hoisting, is sling by described pressure vessels top cover 1;
Control rod drive mechanisms (CRD) 8; Described control driving mechanism 8 is installed between described pressure vessels top cover 1 and described quake-proof supporting structure 4, is exposed in external environment, makes the coil of described control rod drive mechanisms (CRD) 8 that natural ventilation methods for cooling can be adopted to cool.
Preferably, the quantity of described support column 3 is multiple; Multiple described support column 3 is along the circumferential direction arranged.
Preferably, the two ends of described antidetonation pull bar 5 are equipped with pull bar screw rod joint 51; Described quake-proof supporting structure 4 and concrete embedded part 01 are equipped with the inserted sheet 52 adapted with described pull bar screw rod joint 51; Described inserted sheet 52 inserts described pull bar screw rod joint 51, and pull bar bearing pin 53 runs through described pull bar screw rod joint 51 and described inserted sheet 52, is connected by described antidetonation pull bar 5 with quake-proof supporting structure 4, is connected by described antidetonation pull bar 5 with concrete embedded part 01.
Preferably, the mode that is threaded connection of described pull bar screw rod joint 51 and described antidetonation pull bar 5 removably connect; The thread rotary orientation of two pull bar screw rod joints 51 at described antidetonation pull bar 5 two ends is contrary.
Preferably, the quantity of described antidetonation pull bar 5 is four; Four described antidetonation pull bars 5 are along the circumferential direction arranged, around described quake-proof supporting structure 4.
Preferably, described top cover suspender 6 comprises oblique suspension rod 61; The upper end of described oblique suspension rod 61 is arranged in lifting 63 by screw rod joint 62, and lower end is connected with straight suspension rod 64 by another group screw rod joint 62; The lower end of described straight suspension rod 64 is arranged on described pressure vessels top cover 1.
Preferably, the quantity of described oblique suspension rod 61 is 3; All described with one the straight suspension rod 64 in lower end of each oblique suspension rod 61 is connected; Cross bar 65 is provided with between adjacent two oblique suspension rods 61.As shown in Figure 6, during lifting, because the central axis X of integrated top cover is not on geometric central axis line Y, lifting head is eccentric design.
Preferably, as shown in Figure 7, the top of described quake-proof supporting structure 4 is furnished with cable support structure 71 and the panel 72 of wirerope composition; Described panel 72 leaves polygon breach, for the cable in cable support structure 71 from wherein drawing; The top of described quake-proof supporting structure 4 is also provided with cable connection plate 73; The cable of drawing from described panel 72 arrives corresponding cable connection plate 73.Cable connection plate 73 and the convertible or movable type cable crane span structure 03 on pool wall operating platform 02 with the use of, for patching fast of the period cable that reloads.Wherein, the multi-layer cable top of cable support structure 71 aligns substantially with the lower edge of cable connection plate 73.
Reload period, remove antidetonation pull bar 5.Then monoblock type bolt stretching machine carries out the operation of kingbolt by integrated top cover.Dismounting and the installment work of kingbolt can be carried out faster.
Compared with prior art, the utility model has following beneficial effect:
1, meet the integrated top cover being applicable to PWR nuclear power plant of the present utility model, can by several equipment of different function requirements on PRV head package or component integration integral with the operation of reloading simplifying reactor.During reactor cold-refueling, by doing integrated operation with top cover of reactor pressure vessel, realizing the Integral lifting of heap top component, shifting and deposit.Meanwhile, be enormously simplify the take-down time of cable by the centralized arrangement of cable, improve the availability of nuclear power plant
2, meet the integrated top cover being applicable to PWR nuclear power plant of the present utility model, there is the period heap Integral lifting of roof construction that reloads, the Horizontal Seismic of control rod drive mechanisms (CRD) supports, the centralized arrangement of cable and dismounting, overall bolt stretching machine (split type) the function such as lifting, personnel's radiation shield of period of reloading.
3, meet the integrated top cover being applicable to PWR nuclear power plant of the present utility model, CRDM natural ventilation cooling can be met, thus the weight of integrated top cover is greatly reduced.Reload period, integrated top cover can also meet the request for utilization of overall bolt stretching machine.
4, meeting the integrated top cover being applicable to PWR nuclear power plant of the present utility model, except being applicable to reactor pressure vessel, can also other field be applicable to.
Upper and lower even Fig. 2 in the utility model is reference, is all reference with Fig. 4 clockwise, counterclockwise, for clearly the utility model being described and the relative concept used.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For system disclosed in embodiment, owing to corresponding to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Those skilled in the art can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present utility model.
Obviously, those skilled in the art can carry out various change and modification to utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (8)
1. be applicable to an integrated top cover for PWR nuclear power plant, it is characterized in that, comprising:
Pressure vessels top cover; Described pressure vessels top cover is positioned at bottom, coordinates with reactor pressure vessel;
Ring flange; Described ring flange is positioned at the top of described pressure vessels top cover, is connected with described pressure vessels top cover by bolt;
Support column; Described support column is positioned at above described ring flange; The lower end of described support column is connected with described ring flange;
Quake-proof supporting structure; Described quake-proof supporting structure rides against the upper end of described support column, is connected with described support column;
Antidetonation pull bar; Described antidetonation pull bar one end is arranged on described quake-proof supporting structure; The other end is arranged on the concrete embedded part of pool wall;
Top cover suspender; Described top cover suspender is arranged on above described pressure vessels top cover, is connected with described pressure vessels top cover, for coordinating with boom hoisting, is sling by described pressure vessels top cover;
Control rod drive mechanisms (CRD); Described control driving mechanism is installed between described pressure vessels top cover and described quake-proof supporting structure.
2. be applicable to the integrated top cover of PWR nuclear power plant as claimed in claim 1, it is characterized in that, the quantity of described support column is multiple; Multiple described support column is along the circumferential direction arranged, around described control rod drive mechanisms (CRD).
3. be applicable to the integrated top cover of PWR nuclear power plant as claimed in claim 1, it is characterized in that, the two ends of described antidetonation pull bar are equipped with pull bar screw rod joint; Described quake-proof supporting structure and concrete embedded part are equipped with the inserted sheet adapted with described pull bar screw-rod structure; Described inserted sheet inserts described pull bar screw rod joint, and pull bar bearing pin runs through described pull bar screw rod joint and described inserted sheet, is connected by described antidetonation pull bar with quake-proof supporting structure, is connected by described antidetonation pull bar with concrete embedded part.
4. be applicable to the integrated top cover of PWR nuclear power plant as claimed in claim 1, it is characterized in that, the mode that described pull bar screw rod joint is threaded connection and described antidetonation pull bar removably connect; The thread rotary orientation of two pull bar screw rod joints at described antidetonation pull bar two ends is contrary.
5. be applicable to the integrated top cover of PWR nuclear power plant as claimed in claim 1, it is characterized in that, the quantity of described antidetonation pull bar is four; Four described antidetonation pull bars are along the circumferential direction arranged, around described quake-proof supporting structure.
6. be applicable to the integrated top cover of PWR nuclear power plant as claimed in claim 1, it is characterized in that, described top cover suspender comprises oblique suspension rod; The upper end of described oblique suspension rod is by screw rod jiont treatment on lifting head, and lower end is connected with straight suspension rod by screw rod joint; The lower end of described straight suspension rod is arranged on described pressure vessels top cover.
7. be applicable to the integrated top cover of PWR nuclear power plant as claimed in claim 6, it is characterized in that, the quantity of described oblique suspension rod is 3; All described with one the straight suspension rod in lower end of each oblique suspension rod is connected; Cross bar is provided with between two adjacent oblique suspension rods.
8. be applicable to the integrated top cover of PWR nuclear power plant as claimed in claim 6, it is characterized in that, the top of described quake-proof supporting structure is furnished with cable support structure and the panel of wirerope composition; Described panel leaves polygon breach, for the cable in cable support structure from wherein drawing; The top of described quake-proof supporting structure is also provided with cable connection plate; The cable of drawing from described panel arrives corresponding cable connection plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717505.XU CN205038969U (en) | 2015-09-16 | 2015-09-16 | Integration top cap suitable for PWR nuclear power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717505.XU CN205038969U (en) | 2015-09-16 | 2015-09-16 | Integration top cap suitable for PWR nuclear power plant |
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| Publication Number | Publication Date |
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| CN205038969U true CN205038969U (en) | 2016-02-17 |
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| CN201520717505.XU Active CN205038969U (en) | 2015-09-16 | 2015-09-16 | Integration top cap suitable for PWR nuclear power plant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097054A (en) * | 2015-09-16 | 2015-11-25 | 上海核工程研究设计院 | Integrated top cover applicable to pressurized water reactor nuclear power plant |
| CN105679386A (en) * | 2016-03-25 | 2016-06-15 | 上海核工程研究设计院 | Refueling device outside nuclear power containment |
| CN106223524A (en) * | 2016-07-21 | 2016-12-14 | 中核能源科技有限公司 | Reactor, vaporizer cabin detachable sandwich steel plate concrete cover plate |
| CN115331850A (en) * | 2022-09-14 | 2022-11-11 | 上海核工程研究设计院有限公司 | Passive reactor top cooling structure |
-
2015
- 2015-09-16 CN CN201520717505.XU patent/CN205038969U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097054A (en) * | 2015-09-16 | 2015-11-25 | 上海核工程研究设计院 | Integrated top cover applicable to pressurized water reactor nuclear power plant |
| CN105679386A (en) * | 2016-03-25 | 2016-06-15 | 上海核工程研究设计院 | Refueling device outside nuclear power containment |
| CN106223524A (en) * | 2016-07-21 | 2016-12-14 | 中核能源科技有限公司 | Reactor, vaporizer cabin detachable sandwich steel plate concrete cover plate |
| CN115331850A (en) * | 2022-09-14 | 2022-11-11 | 上海核工程研究设计院有限公司 | Passive reactor top cooling structure |
| CN115331850B (en) * | 2022-09-14 | 2024-05-10 | 上海核工程研究设计院股份有限公司 | Passive stack top cooling structure |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |