CN103925412A - Cable tray structure for nuclear power plant reactor top cable arrangement - Google Patents
Cable tray structure for nuclear power plant reactor top cable arrangement Download PDFInfo
- Publication number
- CN103925412A CN103925412A CN201310011923.2A CN201310011923A CN103925412A CN 103925412 A CN103925412 A CN 103925412A CN 201310011923 A CN201310011923 A CN 201310011923A CN 103925412 A CN103925412 A CN 103925412A
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- Prior art keywords
- cable
- testing bridge
- power plant
- nuclear power
- cable testing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0456—Ladders or other supports
Abstract
The invention provides a cable tray structure for nuclear power plant reactor top cable arrangement. The cable tray structure comprises a support column (5), a flexible cable arrangement device (6), a cable connecting plate (8), a cable tray (9), a guide rail structure (10), a tray moving limit device (11), a gear rack pair (12), a cable tray mounting seat (17), a base plate (21), a spacer (22), a connecting pair (23), a connecting pin (26), a limit device (27) and a base plate rotating device (29). The weight of an integrated reactor top component is reduced, the risk of lifting the structure of the integrated reactor top component is relieved, the distance between the gravity center of the integrated reactor top component and a geometric center is shortened, and transformation of different positions of the cable tray is ensured in running of the cable tray and refueling peroration.
Description
Technical field
The invention belongs to nuclear power plant's nuclear reactor designs technical field, be specifically related to the cable testing bridge structure that a kind of nuclear power plant stack top cable is arranged.
Background technique
Nuclear reactor is the containment that is positioned at nuclear power plant, is one of key equipment of nuclear steam supply system, a plurality of subsets such as pressurized container, in-pile component, driving mechanism, integrated heap top components (IHP), consists of.Wherein integrated heap top component is that reactor the next item up is integrated into one several equipment of heap top different function requirements or parts to simplify the substantial equipment of reloading and operating of reactor.The Main Function of integrated heap top component is during reactor cold-refueling, by doing integrated operation with top cover of reactor pressure vessel, realize heap top component Integral lifting, shift and deposit, wherein by the centralized arrangement of cable, greatly simplified the take-down time of cable, improved the availability of nuclear power plant.
The various core levels such as driving mechanism cable, heap top neutron fluence rate measuring system cable, driving mechanism rod position indicator cable arrive with the master-control room entrance on steel web and are connected with master-control room through integrated heap top component with non-core level cable.Current up-to-date cable arrangements mode adopts cable centralized arrangement mode to shorten the time of dismounting and installing cables mostly, the function of cable testing bridge for carrying cable with leap reactor cavity.
If cable testing bridge is arranged on integrated heap top component, can be directly shelved on the operation planar of pond at cable testing bridge during reactor operation.Because integrated heap top component (comprising cable testing bridge) in the process of reloading needs and top cover of reactor pressure vessel Integral lifting.Cable testing bridge promotes the lifting weight that can increase suspender together with integrated heap top component; Due to the center of gravity of cable testing bridge, depart from again the geometrical center of integrated heap top component far away, this will inevitably cause the increase of tilting moment while promoting and increase the risk of lifting.And the existence due to cable testing bridge simultaneously causes the size that is unfavorable for dwindling containment with the arrangement space that has taken miscellaneous equipment in lifting process.
In patent " for the cable bracket of the combined type head seal device of nuclear power station " (patent No. 95192122.3), arrange that the cable bracket of cable is comprised of driving device, moving cable bracket, pivot whirligig and guiding device etc.During reloading, cable bracket is retracted in cavity by retracting device, and the cable bracket that this patent is described need to be reserved larger space below the operation planar of pond.On the pool wall of operation planar, designed a platform for mounting and dismounting the cable on cable bracket.Because radiation dose in heap chamber is higher, this has also increased the risk of installation and attendant's raying.
Summary of the invention
The object of the invention is in order to overcome the defect of prior art, provide a kind of installation and maintenance of cable to operate the cable testing bridge structure of all carrying out, can reduce personnel's raying risk on the operating platform of integrated heap top component.
To achieve these goals, technological scheme of the present invention is, the cable testing bridge structure that nuclear power plant's stack top cable is arranged, comprises that supporting post, flexible cable arrangement apparatus, cable connection plate, cable testing bridge, guide rail structure, crane span structure move limit stoper, rack-and-pinion, cable testing bridge fitting seat, backing plate, cushion block, auxiliary connection, connecting pin, limit stoper and backing plate slewing gear; Wherein, cable connection plate and cable testing bridge are rectangular, and its cable interface is mutually corresponding; One side of operating platform and cable connection plate is installed fixing, forms swing structure; Before and after operating platform and cable connection plate mounting part, be also respectively arranged with supporting post and limit stoper; Spacing by supporting post and limit stoper, cable connection plate is realized with operating platform angle and is the swing of 20 °～90 °; On steel web on the operation planar of pond, have chute, chute is provided with guide rail structure, establishes rack-and-pinion on guide rail structure; By the driving of rack-and-pinion, guide rail structure can move along chute direction; Guide rail structure top left level is fixedly installed cable testing bridge fitting seat, and cable testing bridge at right angle setting is fixed on cable testing bridge fitting seat; At cable connection plate, cable testing bridge, be arranged with flexible cable arrangement apparatus, to realize the physical segregation between different level of security cables, simultaneously can also be in cable moving or rotation process relevant cables parameter, as parameters such as Cable Bending Radius, meet related specifications requirement; The upper left corner of pond operation planar is provided with embedded part, falls down be fixed with successively backing plate slewing gear and cushion block on embedded part from above, and one end of backing plate slewing gear and backing plate is fixed, and cushion block carries out spacing to backing plate along the swing of backing plate slewing gear in the horizontal direction; Arranged outside at operating platform position limit device has crane span structure to move limit stoper, its effect be the horizontal slip of guide rail structure is carried out spacing, thereby restriction the moving horizontally of cable testing bridge; Crane span structure moves limit stoper and on guide rail structure, is equipped with the auxiliary connection mounting hole that is connected a pair of cooperation, and auxiliary connection is installed in nuclear power plant's run duration auxiliary connection mounting hole.
One side of described cable connection plate is fastened on operating platform by connecting pin.
Described flexible cable arrangement apparatus is stainless steel cable-pulling chain.
Described backing plate slewing gear is hinge or pin connected construction.
The outer of left end of described guide rail structure is wedge-shaped structure, to guarantee that rail structure 10 can reach on operating platform smoothly.
The high order end of described guide rail structure is provided with limit sensors limit sensors, control motor move to realize cable testing bridge operation and reload during the positioning control of two limit positions of cable testing bridge.
Described auxiliary connection is pin shaft structure or bolt arrangement.
Beneficial effect of the present invention is as follows: (1) removes cable testing bridge be placed on the operation planar of pond from integrated heap top component, has reduced the weight of integrated heap top component, has alleviated the risk that promotes integrated heap top component structure; (2) cable testing bridge is fixed on guide rail structure, and guide rail structure is connected on operating platform face steel web by sliding groove structure, and guide rail structure is connected with motor by gear rack auxiliary driving.Guarantee that cable testing bridge is in the conversion of run duration and the actuating cable crane span structure diverse location that reloads; (3) adopt rotational structure.During integrated heap top component Integral lifting, reduce the center of gravity of integrated heap top component, reduced the distance of integrated heap top component deviation of gravity center geometrical center simultaneously.Reduced the risk that promotes integrated heap top component structure; (4) adopt flexible cable drag chain technology.Realized on the one hand the physical segregation between different level of security cables, simultaneously can also be in cable moving process meet the demands as parameters such as Cable Bending Radius.
Accompanying drawing explanation
Tu1Wei nuclear power plant run duration stack top cable is arranged plan view.
Tu2Wei Wei nuclear power plant reload during cable layout.
Tu3Wei nuclear power plant run duration stack top cable is arranged plan view.
The partial schematic diagram that Tu4Wei nuclear power plant run duration cable testing bridge is connected with cable connection plate.
Fig. 5 is that the A of Fig. 4 is to view.
In figure, 1-top cover of reactor pressure vessel, the integrated heap top component of 2-encloses cylinder, 3-cable tray, 4-operating platform, 5-supporting post, 6-flexible cable arrangement apparatus, 7-cable, 8-cable connection plate, 9-cable testing bridge, 10-guide rail structure, 11-crane span structure moves limit stoper, 12-rack-and-pinion, 13-steel web, 14-pond operation planar, 15-personnel inclined ladder, 16-master-control room entrance, 17-cable testing bridge fitting seat, 19-cable openings, 21-backing plate, 22-cushion block, 23-auxiliary connection, 24-reactor cavity, 25-cable input device, 26-connecting pin, 27-limit stoper, 28-cable-pulling chain mountion plate, 29-backing plate slewing gear.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
The cable testing bridge structure that nuclear power plant's stack top cable is arranged, comprises that supporting post 5, flexible cable arrangement apparatus 6, cable connection plate 8, cable testing bridge 9, guide rail structure 10, crane span structure move limit stoper 11, rack-and-pinion 12, cable testing bridge fitting seat 17, backing plate 21, cushion block 22, auxiliary connection 23, connecting pin 26, limit stoper 27 and backing plate slewing gear 29; Wherein, cable connection plate 8 and cable testing bridge 9 are rectangular, and its cable interface is mutually corresponding; On operating platform 4, install and fix by connecting pin 26 with one side of cable connection plate 8, form swing structure; Operating platform 4 is also respectively arranged with supporting post 5 and limit stoper 27 with cable connection plate 8 front and back, mounting parts; Spacing by supporting post 5 and limit stoper 27, cable connection plate 8 is realized with operating platform 4 angles and is the swing of 20 °～90 °; On steel web 13 on pond operation planar 14, have chute, chute is provided with guide rail structure 10, and the outer of guide rail structure 10 left ends is wedge-shaped structure, to guarantee that rail structure 10 can reach on operating platform 4 smoothly; The high order end of rail structure 10 is provided with limit sensors limit sensors, control motor move to realize cable testing bridge 9 operations and reload during the positioning control of 9 two limit positions of cable testing bridge; On guide rail structure 10, establish rack-and-pinion 12, by the driving of rack-and-pinion 12, guide rail structure 10 can move along chute direction; Guide rail structure 10 top left levels are fixedly installed cable testing bridge fitting seat 17, and cable testing bridge 9 at right angle settings are fixed on cable testing bridge fitting seat 17; At cable connection plate 8, cable testing bridge 9, be arranged with flexible cable arrangement apparatus 6, flexible cable arrangement apparatus 6 is stainless steel cable-pulling chain, to realize the physical segregation between different level of security cables 7, simultaneously can also cable 7 move or rotation process in relevant cables parameter, as parameters such as Cable Bending Radius, meet related specifications requirement; The upper left corner of pond operation planar 14 is provided with embedded part, on embedded part, from above, fall down to be fixed with successively backing plate slewing gear 29 and cushion block 22, backing plate slewing gear 29 is hinge or pin connected construction, and fix with one end of backing plate 21, cushion block 22 carries out spacing to backing plate 21 along the swing of backing plate slewing gear 29 in the horizontal direction; Arranged outside at operating platform 4 position limit devices 27 has crane span structure to move limit stoper 11, its effect be the horizontal slip of guide rail structure 10 is carried out spacing, thereby restriction the moving horizontally of cable testing bridge 9; Crane span structure moves limit stoper 11 and on guide rail structure 10, is equipped with the auxiliary connection mounting hole that is connected a pair of cooperation, and auxiliary connection 23 is installed in nuclear power plant's run duration auxiliary connection mounting hole, and auxiliary connection 23 is pin shaft structure or bolt arrangement.
On top cover of reactor pressure vessel 1, be that integrated heap top component encloses cylinder 2, integrated heap top component encloses on cylinder 2 and is mounted with operating platform 4 and cable tray; Cable 7 comprises driving mechanism cable, reactor core neutron fluence rate measuring system cable, rod position indicator cable, the cable 7 passing from cable tray 3 is under the support or traction of flexible cable arrangement apparatus 6, cable openings 19 through operating platform reaches cable connection plate 8, by cable connection plate 8,9 cable interfaces of cable testing bridge, guides cable testing bridge 9 into; Cable 7, from cable testing bridge 9 is drawn, then under the support of flexible cable arrangement apparatus 6 or traction, arrives the cable input device 25 of MCR Master Control Room through master-control room entrance 16.
Structure composition and the run duration of cable testing bridge and cable connection plate is described in Fig. 1, Fig. 2 and reload during the arrangement of cable on cable testing bridge and cable connection plate.Fig. 3 is run duration cable arrangements plan view, and the physical segregation adopting between flexible cable arrangement and cable is described.Fig. 4, Fig. 5 are run duration cable testing bridge and cable connection plate connection diagram, and the Placement of cable testing bridge and cable connection plate is described.
During reloading, operator arrive integrated heap top component operating platform 4, the cable 7 of upper installation and removal cable connection plate 8 and cable testing bridge 9 by personnel's inclined ladder 15; After the cable 7 of disconnection cable testing bridge 9 and cable connection plate 8 is connected, drive guide rail structure 10 that cable testing bridge 9 is moved back into pond operation planar 14 positions, meanwhile, by electronic or hydraulic way, cable connection plate 8 is turned to and approaches horizontal position, and by the position of supporting post 5 attached cable connecting plates; Finally, top cover of reactor pressure vessel 1, integrated heap top component enclose cylinder 2, operating platform 4, cable tray 3, cable connection plate 8 etc. and by suspender, are promoted and hung out in the lump reactor cavity 24.
Above embodiments of the invention are explained in detail, above-mentioned mode of execution is only optimum embodiment of the present invention, but the present invention is not limited to above-described embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from aim of the present invention, make various variations.
Claims (7)
- The cable testing bridge structure that 1.Yi Zhong nuclear power plant stack top cable is arranged, is characterized in that comprising that supporting post (5), flexible cable arrangement apparatus (6), cable connection plate (8), cable testing bridge (9), guide rail structure (10), crane span structure move limit stoper (11), rack-and-pinion (12), cable testing bridge fitting seat (17), backing plate (21), cushion block (22), auxiliary connection (23), connecting pin (26), limit stoper (27) and backing plate slewing gear (29); Wherein, cable connection plate (8) and cable testing bridge (9) are rectangular, and its cable interface is mutually corresponding; Operating platform (4) is installed and is fixed with one side of cable connection plate (8), forms swing structure; Operating platform (4) is also respectively arranged with supporting post (5) and limit stoper (27) with front and back, cable connection plate (8) mounting part; Spacing by supporting post (5) and limit stoper (27), cable connection plate (8) is realized with operating platform (4) angle and is the swing of 20 °～90 °; On steel web (13) on pond operation planar (14), have chute, chute is provided with guide rail structure (10), establishes rack-and-pinion (12) on guide rail structure (10); Guide rail structure (10) top left level is fixedly installed cable testing bridge fitting seat (17), and cable testing bridge (9) at right angle setting is fixed on cable testing bridge fitting seat (17); At cable connection plate (8), cable testing bridge (9), be arranged with flexible cable arrangement apparatus (6); The upper left corner of pond operation planar (14) is provided with embedded part, on embedded part, from above, fall down to be fixed with successively backing plate slewing gear (29) and cushion block (22), one end of backing plate slewing gear (29) and backing plate (21) is fixed, and cushion block (22) carries out spacing to backing plate (21) along the swing of backing plate slewing gear (29) in the horizontal direction; Arranged outside at operating platform (4) position limit device (27) has crane span structure to move limit stoper (11); Crane span structure moves limit stoper (11) and is equipped with on guide rail structure (10) the auxiliary connection mounting hole that is connected a pair of cooperation, and auxiliary connection (23) is installed in nuclear power plant's run duration auxiliary connection mounting hole.
- 2. the cable testing bridge structure that a kind of nuclear power plant as claimed in claim 1 stack top cable is arranged, is characterized in that one side of cable connection plate (8) is fastened on operating platform (4) by connecting pin (26).
- 3. the cable testing bridge structure that a kind of nuclear power plant as claimed in claim 1 stack top cable is arranged, is characterized in that flexible cable arrangement apparatus (6) is stainless steel cable-pulling chain.
- 4. the cable testing bridge structure that a kind of nuclear power plant as claimed in claim 1 stack top cable is arranged, is characterized in that backing plate slewing gear (29) is hinge or pin connected construction.
- 5. the cable testing bridge structure that a kind of nuclear power plant as claimed in claim 1 stack top cable is arranged, is characterized in that the outer of left end of guide rail structure (10) is wedge-shaped structure.
- 6. the cable testing bridge structure that a kind of nuclear power plant as claimed in claim 5 stack top cable is arranged, is characterized in that the high order end of guide rail structure (10) is provided with limit sensors limit sensors.
- 7. the cable testing bridge structure that a kind of nuclear power plant as claimed in claim 1 stack top cable is arranged, is characterized in that auxiliary connection (23) is pin shaft structure or bolt arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310011923.2A CN103925412B (en) | 2013-01-14 | 2013-01-14 | The cable testing bridge structure that a kind of nuclear power plant stack top cable is arranged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310011923.2A CN103925412B (en) | 2013-01-14 | 2013-01-14 | The cable testing bridge structure that a kind of nuclear power plant stack top cable is arranged |
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| Publication Number | Publication Date |
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| CN103925412A true CN103925412A (en) | 2014-07-16 |
| CN103925412B CN103925412B (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310011923.2A Active CN103925412B (en) | 2013-01-14 | 2013-01-14 | The cable testing bridge structure that a kind of nuclear power plant stack top cable is arranged |
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| CN (1) | CN103925412B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932612A (en) * | 2016-05-06 | 2016-09-07 | 上海核工程研究设计院 | Nuclear power plant head package mobile cable bridge apparatus |
| CN106910541A (en) * | 2017-03-30 | 2017-06-30 | 上海核工程研究设计院 | A kind of close-coupled nuclear reaction stows technique of reloading |
| CN107093876A (en) * | 2017-06-15 | 2017-08-25 | 国网山东省电力公司龙口市供电公司 | A kind of supporting adn fixing device for cable testing bridge |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5384812A (en) * | 1994-03-16 | 1995-01-24 | Westinghouse Electric Corporation | Integrated head package cable carrier for a nuclear power plant |
| CN201601390U (en) * | 2009-12-09 | 2010-10-06 | 中国水电顾问集团华东勘测设计研究院 | Cable wiring device of side-by-side cabinets in hydroelectric plants |
| CN102254056A (en) * | 2011-04-08 | 2011-11-23 | 中国核电工程有限公司 | Method for designing cable path of nuclear power station |
| CN202501106U (en) * | 2012-01-17 | 2012-10-24 | 浙江师范大学 | Movable cable bridge device |
-
2013
- 2013-01-14 CN CN201310011923.2A patent/CN103925412B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5384812A (en) * | 1994-03-16 | 1995-01-24 | Westinghouse Electric Corporation | Integrated head package cable carrier for a nuclear power plant |
| CN201601390U (en) * | 2009-12-09 | 2010-10-06 | 中国水电顾问集团华东勘测设计研究院 | Cable wiring device of side-by-side cabinets in hydroelectric plants |
| CN102254056A (en) * | 2011-04-08 | 2011-11-23 | 中国核电工程有限公司 | Method for designing cable path of nuclear power station |
| CN202501106U (en) * | 2012-01-17 | 2012-10-24 | 浙江师范大学 | Movable cable bridge device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932612A (en) * | 2016-05-06 | 2016-09-07 | 上海核工程研究设计院 | Nuclear power plant head package mobile cable bridge apparatus |
| CN106910541A (en) * | 2017-03-30 | 2017-06-30 | 上海核工程研究设计院 | A kind of close-coupled nuclear reaction stows technique of reloading |
| CN107093876A (en) * | 2017-06-15 | 2017-08-25 | 国网山东省电力公司龙口市供电公司 | A kind of supporting adn fixing device for cable testing bridge |
| CN107093876B (en) * | 2017-06-15 | 2018-10-16 | 国网山东省电力公司龙口市供电公司 | A kind of supporting adn fixing device for cable testing bridge |
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| Publication number | Publication date |
|---|---|
| CN103925412B (en) | 2016-01-27 |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: Shanghai Nuclear Engineering Research & Design Institute |
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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 Co.,Ltd. |