CN103050154A - Plate-shaped anti-seismic ring of pressurized water reactor control rod drive mechanism - Google Patents
Plate-shaped anti-seismic ring of pressurized water reactor control rod drive mechanism Download PDFInfo
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- CN103050154A CN103050154A CN2012105503845A CN201210550384A CN103050154A CN 103050154 A CN103050154 A CN 103050154A CN 2012105503845 A CN2012105503845 A CN 2012105503845A CN 201210550384 A CN201210550384 A CN 201210550384A CN 103050154 A CN103050154 A CN 103050154A
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- ring
- control rod
- plate
- antidetonation
- water reactor
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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 invention relates to the technical field of nuclear power and in particular discloses a plate-shaped anti-seismic ring of a pressurized water reactor control rod drive mechanism. A main body of the plate-shaped anti-seismic ring is a ring body; the external side of the plate-shaped anti-seismic ring is circular; the internal side of the plate-shaped anti-seismic ring is polygonal; the polygonal shape is obtained by machining two right angles on four angles of a quadrilateral shape; a lifting rod mounting hole is formed in the ring body on the external side of the polygonal shape; and an adjusting bolt and an adjusting nut are arranged at each edge of the polygonal shape. Two reactor top structures of a dispersed reactor top structure and an integrated reactor top structure can be simultaneously satisfied; and the plate-shaped anti-seismic ring of the pressurized water reactor control rod driving mechanism, provided by the invention, is beneficial for adjusting a gap between an anti-seismic plate and the CRDM (Control Rod Drive Mechanism) and limiting excessive deformation of the CRDM.
Description
Technical field
The invention belongs to the nuclear power technology field, be specifically related to a kind of antidetonation supporting structure.
Background technology
One of effect of reactor roof construction is to limit the excessive deformation of control rod drive mechanisms (CRD) (CRDM) to keep the integrality of function under earthquake conditions.Principle for seismic design is: under earthquake conditions, CRDM sends out the upper end and gives birth to larger displacement, shock-proof plate on it will be sent out with the CRDM upper end and give birth to larger displacement, this moment shock-proof plate will with the antidetonation loop contacts, force the antidetonation ring also will be subjected to displacement, to enclose preferably cylinder upper or be fixed on by the antidetonation pull bar on the civil engineering structure in reactor refuling pond and the antidetonation ring is fixed on rigidity, limited the generation of displacement, thereby limited shock-proof plate and CRDM upper end larger displacement has occured, guaranteed that CRDM can excessive deformation, kept the normal function of CRDM.Therefore the antidetonation ring has played very important effect in the antidetonation process.
It is several that antidetonation ring in the at present domestic and international presurized water reactor heap roof construction mainly contains square cross-section antidetonation sustained ring (the antidetonation sustained ring in the distributing heap roof construction), antidetonation buffer structure (the antidetonation buffer structure in the integrated heap roof construction in western room) and monoblock type shock-proof plate (shock-proof plate in the roof construction is piled in western room in early days) etc.
Wherein the antidetonation sustained ring is to be welded by four blocks of sheet materials, and section is tetragonal ring cavity structure, and this structural entity rigidity is high, but because the ring body size is larger, brings a lot of troubles to manufacturing; And the buffer structure in the integrated heap roof construction, it is the square cross-section ring cavity structure that is welded by three blocks of plates, whole ring cavity is bolted on the supporting station that encloses on the cylinder, this structure equally need to be with three plate welding, the centre is welded with gusset, welding deformation is difficult to control during manufacturing, and structure is comparatively complicated; The monoblock type shock-proof plate is then made antidetonation ring and shock-proof plate as a whole, is unfavorable for the adjustment of shock-proof plate and CRDM gap, will produce adverse influence to CRDM.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, and can satisfy simultaneously distributing and integrated two kinds the heap roof constructions the tabular antishock devices of presurized water reactor control rod drive mechanisms (CRD).
Realize that technical scheme of the present invention is as follows:
The tabular antidetonation ring of a kind of presurized water reactor control rod drive mechanisms (CRD), it comprises ring body, and its outside is circular, and the inboard is polygon, and described polygon is formed by two squares of processing on tetragonal four angles, and the ring body in the polygon outside is provided with the hanger erection hole; Described polygonal each limit is provided with adjusting bolt and setting nut.
In the above-mentioned tabular antidetonation ring of a kind of presurized water reactor control rod drive mechanisms (CRD): described hanger erection pore size distribution is as follows, evenly processes 4 respectively on polygonal four limits of stroke, processes respectively 1 in two right angles on each angle.
In the above-mentioned tabular antidetonation ring of a kind of presurized water reactor control rod drive mechanisms (CRD): described ring body is fixed with hinged-support, and the ring body of the position in hanger erection hole is respectively equipped with up and down screw thread pressure strip and screw thread rest pad.
In the above-mentioned tabular antidetonation ring of a kind of presurized water reactor control rod drive mechanisms (CRD): the top surface edge of described ring body is processed with bolt connecting hole and pin-and-hole, and coupling bolt is set in the connecting hole, and fixed pin is set in the pin-and-hole.
The obtained beneficial effect of the present invention is as follows: structure, quantity and the position of the applicable CRDM of the inner polygon of antidetonation ring, the setting nut of polygon inboard and bolt can be regulated the distance between antidetonation ring and the shock-proof plate, lower suspension rod is installed in hanger erection hole on the antidetonation ring simultaneously, again by screw thread pressure strip and screw thread rest pad, so that the antidetonation ring is supported and fixed on the lower suspension rod, be beneficial to the adjustment of shock-proof plate and CRDM gap.Further, in distributing is arranged, at the antidetonation ring hinged-support is installed, can be connected with the antidetonation rod assembly, the antidetonation ring transfers loads on the reactor pit civil engineering structure by hinged-support and antidetonation rod assembly, thereby arrives the purpose of restriction CRDM excessive deformation; In integrated arrangement, the face edge, top of antidetonation ring is processed with bolt connecting hole and pin-and-hole, coupling bolt is set in the connecting hole, fixed pin is set in the pin-and-hole, the antidetonation ring transfers loads to by coupling bolt, attaching nut and fixed pin and encloses drum flange and enclose on the cylinder, thereby arrives the purpose of restriction CRDM excessive deformation.
Description of drawings
Fig. 1 is antidetonation ring schematic diagram;
Fig. 2 is that the antidetonation ring relies on setting nut and adjusting bolt to regulate the shock-proof plate position view;
Fig. 3 is antidetonation ring schematic diagram in distributing heap roof construction;
Fig. 4 is antidetonation ring schematic diagram in integrated heap roof construction;
Among the figure: 1. ring body; 2. adjusting bolt; 3. setting nut; 4. shock-proof plate; 5. hinged-support; 6. descend suspension rod; 7. antidetonation rod assembly; 8. screw thread pressure strip; 9. screw thread rest pad; 10. coupling bolt; 11. fixed pin; 12. enclose drum flange; 13. attaching nut; 14. enclose cylinder; 15. hanger erection hole; 16. polygon.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in detail.
As shown in Figure 1, ring body 1 is ring flat-plate shape structure, and the outside is circular, the inboard polygon 16 that is, in the middle of this enforcement, polygon 16 is changed by quadrilateral, two identical right-angle structures of inside processing on tetragonal four angles.On ring body 1, outside the polygon, be processed with hanger erection hole 15.In the middle of the present embodiment, hanger erection hole 15 is processed with 24, distributes as follows: evenly process 4 respectively on tetragonal four limits, process respectively 1 in two right angles on each angle.
On each limit of the polygon 16 of ring body 1 inboard, adjusting bolt 2 and setting nut 3 are installed.
During use, shock-proof plate 4 is placed in the polygon of ring body 1 inboard, owing on each limit adjusting bolt 2 and setting nut 3 being set, therefore adjusted the distance between ring body 1 and the shock-proof plate 4.
As shown in Figure 3, in distributing heap roof construction, at above-mentioned ring body 1 hinged-support 5 is installed, lower suspension rod 6 passes hanger erection hole 15, again by screw thread pressure strip 8 and screw thread rest pad 9, so that ring body 1 and lower suspension rod 6 support fixing.Hinged-support 5 and antidetonation rod assembly 7 are connected by bearing pin, under earthquake conditions, CRDM load is delivered on the ring body 1 by shock-proof plate 4, and ring body 1 transfers loads on the reactor pit civil engineering structure by hinged-support 5 and antidetonation rod assembly 7, thereby arrives the purpose of restriction CRDM excessive deformation.
As shown in Figure 4, in integrated heap roof construction, be processed with bolt connecting hole and pin-and-hole in the top surface edge of ring body 1, coupling bolt 10 is set in the connecting hole, fixed pin 11 is set in the pin-and-hole.The drum flange 12 that encloses that encloses cylinder 14 upper ends of the below of ring body 1 is fixedly connected with ring body 1 by coupling bolt 10, attaching nut 13 and fixed pin 11, descends equally suspension rod 6 to pass hanger erection hole 15.Under earthquake conditions, CRDM load is delivered on the ring body 1 by shock-proof plate 4, and ring body 1 transfers loads to by coupling bolt 10, attaching nut 13 and fixed pin 11 and encloses drum flange 12 and enclose on the cylinder 14, thereby arrives the purpose of restriction CRDM excessive deformation.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.If these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (4)
1. tabular antidetonation ring of presurized water reactor control rod drive mechanisms (CRD), it is characterized in that: it comprises ring body (1), its outside is circular, the inboard is polygon (16), described polygon (16) is formed by two squares of processing on tetragonal four angles, and the ring body (1) in polygon (16) outside is provided with hanger erection hole (15); Each limit of described polygon (16) is provided with adjusting bolt (2) and setting nut (3).
2. the tabular antidetonation ring of a kind of presurized water reactor control rod drive mechanisms (CRD) as claimed in claim 1, it is characterized in that: described hanger erection hole (15) is distributed as, evenly process 4 respectively on polygonal four limits of stroke, process respectively 1 in two right angles on each angle.
3. the tabular antidetonation ring of a kind of presurized water reactor control rod drive mechanisms (CRD) as claimed in claim 1 or 2, it is characterized in that: be fixed with hinged-support (5) on the described ring body (1), the ring body (1) of the position of hanger erection hole (15) is respectively equipped with up and down screw thread pressure strip (8) and screw thread rest pad (9).
4. the tabular antidetonation ring of a kind of presurized water reactor control rod drive mechanisms (CRD) as claimed in claim 1 or 2, it is characterized in that: the top surface edge of described ring body (1) is processed with bolt connecting hole and pin-and-hole, coupling bolt (10) is set in the connecting hole, fixed pin (11) is set in the pin-and-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550384.5A CN103050154B (en) | 2012-12-18 | 2012-12-18 | A kind of presurized water reactor control rod drive mechanisms (CRD) tabular antidetonation ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550384.5A CN103050154B (en) | 2012-12-18 | 2012-12-18 | A kind of presurized water reactor control rod drive mechanisms (CRD) tabular antidetonation ring |
Publications (2)
| Publication Number | Publication Date |
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| CN103050154A true CN103050154A (en) | 2013-04-17 |
| CN103050154B CN103050154B (en) | 2016-03-02 |
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| CN201210550384.5A Active CN103050154B (en) | 2012-12-18 | 2012-12-18 | A kind of presurized water reactor control rod drive mechanisms (CRD) tabular antidetonation ring |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369929A (en) * | 2014-08-08 | 2016-03-02 | 韩国电力技术株式会社 | Anti-seismic appratus for control element drive mechanism |
| CN105424304A (en) * | 2015-12-02 | 2016-03-23 | 中国核动力研究设计院 | Multi-point excitation anti-seismic test bearing frame and design method thereof |
| CN107644689A (en) * | 2017-09-20 | 2018-01-30 | 中国核动力研究设计院 | A kind of quake-proof supporting structure available for layered arrangement CRDM |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85104786A (en) * | 1985-06-21 | 1986-12-24 | 西屋电器公司 | The seismic support medially that can adjust at a distance |
| JPH04310894A (en) * | 1991-01-17 | 1992-11-02 | Westinghouse Electric Corp <We> | Apparatus and method for cooling coil of control-rod driving mechanism |
| US20030026377A1 (en) * | 2001-08-02 | 2003-02-06 | Advent Engineering Services, Inc. | Integrated head assembly for a nuclear reactor |
| JP2007114096A (en) * | 2005-10-21 | 2007-05-10 | Toshiba Corp | Control rod drive mechanism |
| CN203026151U (en) * | 2012-12-18 | 2013-06-26 | 中国核动力研究设计院 | Pressurized water reactor control rod driving mechanism plate-shaped buffer ring |
-
2012
- 2012-12-18 CN CN201210550384.5A patent/CN103050154B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85104786A (en) * | 1985-06-21 | 1986-12-24 | 西屋电器公司 | The seismic support medially that can adjust at a distance |
| JPH04310894A (en) * | 1991-01-17 | 1992-11-02 | Westinghouse Electric Corp <We> | Apparatus and method for cooling coil of control-rod driving mechanism |
| US20030026377A1 (en) * | 2001-08-02 | 2003-02-06 | Advent Engineering Services, Inc. | Integrated head assembly for a nuclear reactor |
| JP2007114096A (en) * | 2005-10-21 | 2007-05-10 | Toshiba Corp | Control rod drive mechanism |
| CN203026151U (en) * | 2012-12-18 | 2013-06-26 | 中国核动力研究设计院 | Pressurized water reactor control rod driving mechanism plate-shaped buffer ring |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369929A (en) * | 2014-08-08 | 2016-03-02 | 韩国电力技术株式会社 | Anti-seismic appratus for control element drive mechanism |
| US9847146B2 (en) | 2014-08-08 | 2017-12-19 | Kepco Engineering & Construction Company, Inc. | Anti-seismic apparatus for control element drive mechanisms |
| CN105369929B (en) * | 2014-08-08 | 2018-04-10 | 韩国电力技术株式会社 | Antishock device for control element drive mechanism |
| CN105424304A (en) * | 2015-12-02 | 2016-03-23 | 中国核动力研究设计院 | Multi-point excitation anti-seismic test bearing frame and design method thereof |
| CN105424304B (en) * | 2015-12-02 | 2017-11-03 | 中国核动力研究设计院 | Excitation shock test bearing support and its design method |
| CN107644689A (en) * | 2017-09-20 | 2018-01-30 | 中国核动力研究设计院 | A kind of quake-proof supporting structure available for layered arrangement CRDM |
| CN107644689B (en) * | 2017-09-20 | 2019-05-07 | 中国核动力研究设计院 | A kind of quake-proof supporting structure can be used for layered arrangement control rod drive mechanism |
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| CN103050154B (en) | 2016-03-02 |
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