CN103474102B - Open type tube bank type Long travel continuous steerable assembly - Google Patents
Open type tube bank type Long travel continuous steerable assembly Download PDFInfo
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- CN103474102B CN103474102B CN201210186368.2A CN201210186368A CN103474102B CN 103474102 B CN103474102 B CN 103474102B CN 201210186368 A CN201210186368 A CN 201210186368A CN 103474102 B CN103474102 B CN 103474102B
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- hem plate
- positioning seat
- tube bank
- fixed head
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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 present invention relates to core voltage water-water reactor in-pile component, specifically disclose a kind of open type tube bank type Long travel continuous steerable assembly.Lower hem plate is provided with above positioning seat, it is mounting flange above lower hem plate, be provided with upper hem plate above mounting flange, lower hem plate and upper hem plate surround the space of upper end open, and in the space that upper hem plate and lower hem plate surround, level is provided with the fixed head of stratiform.Positioning seat is cross section is the column structure being with round rectangle, and be processed with boss outside sidewall, the cross section of positioning seat upper end is identical with fixed head shape.Rectangle positioning seat eliminates the positioning apparatus for circumferential directions such as the positioning key matched with circular location structure, and self poisoning is good, namely can prevent guidance set circumference from rotating, and guarantees control rod accurate positioning, the enhancing of anti-knock shock resistance ability simultaneously.
Description
Technical field
The invention belongs to core voltage water-water reactor in-pile component, be specifically related to a kind of open type tube bank type Long travel continuous steerable assembly.
Background technology
Guidance set is the lifting of C&P systems and the lower slotting parts providing fine positioning and guiding in piling, and is the vitals of reactor safety control system.At present, the control rod guide tubes and bundles that Class PWR Plants uses is primarily of the shorter continuous steerable part of length and some guide plates composition, and lower end adopts split pin to position.The discontinuous guidance set of Long travel is comparatively large to the damage of control rod, and especially at discontinuous guide section, control rod easily collides with kicker baffle and produces deformation, causes the lower slotting resistance increase of control rod, even there will be card excellent; In addition, the poor ability of transverse load is born in split pin, easy fracture.Above-mentioned factor all brings very large impact to reactor safety.The reactor large for C&P systems stroke, cluster is many, excellent footpath is little, guidance set of the prior art due to complex structure, the resistance of motion is large, reliability is low etc., and problem can not meet the demands.The general location structure adopting circle in prior art in addition, need at the circumferential positioning key of its outside increase, structure is comparatively complicated.
The flanged plate of prior art has distributing small sircle hole, play the effect of stiring and make muddy, when current concentrate on side, cause the concussion of control rod, collision is caused to other component.
Summary of the invention
The object of the present invention is to provide a kind of load can large, the structure of power simple, be easy to realize, the open type tube bank type Long travel continuous steerable assembly that the resistance of motion is little simultaneously, reliability is high, the request for utilization of the reactor that C&P systems stroke is large, cluster is many in order to meet, excellent footpath is little.
Realize technical scheme of the present invention as follows:
A kind of open type tube bank type Long travel continuous steerable assembly, it comprises positioning seat, 4 blocks of vertically disposed lower hem plates are provided with above positioning seat, mounting flange is provided with above lower hem plate, 4 blocks of vertically disposed upper hem plates are provided with above mounting flange, described lower hem plate and upper hem plate surround the space of upper end open, and in the space that described upper hem plate and lower hem plate surround, level is provided with the fixed head of stratiform; Described fixed head is rectangular slab, and center is processed with rectangular opening, and limit, hole is processed with " C " shape groove, and " C " shape groove internal fixtion is provided with double-hole tube and " C " shape pipe; Described positioning seat is cross section is the column structure being with round rectangle, and be processed with boss outside sidewall, the lower end of lower hem plate is fixedly mounted on boss; The cross section of described positioning seat upper end is identical with fixed head shape.
In above-mentioned open type tube bank type Long travel continuous steerable assembly: described " C " shape groove has 16, wherein 4 are arranged on the corner of central rectangular aperture, 4 centre positions being arranged on the four edges of center pit, all the other 8 " C " shape slots in above-mentioned 8 " C " shape grooves between any two.
In above-mentioned open type tube bank type Long travel continuous steerable assembly: the long tube that described double-hole tube is two ends, a cross section is circular hole, centre is the rectangle in band gap.
In above-mentioned open type tube bank type Long travel continuous steerable assembly: described upper hem plate and lower hem plate are rectangular slab, and dual-side is elbow, and such 4 pieces of flanged plates are trapped among together, and its cavity cross-section surrounded is the rectangle with fillet.
In above-mentioned open type tube bank type Long travel continuous steerable assembly: the corner of described fixed head is processed with fillet, and the radius of this fillet is equal with the radius of corner of flanged plate elbow.
In above-mentioned open type tube bank type Long travel continuous steerable assembly: the central cross-section that described mounting flange is integrated processing is the cylinder being with round rectangle, and cylinder is outward flange face, and the cross section of cylinder is identical with the shape of fixed head.
Remarkable result acquired by the present invention is as follows: by positioning seat being designed to the column structure that cross section is band round rectangle, instead of location structure circular in prior art, thus the positioning apparatus for circumferential directions such as the positioning key matched with circular location structure are eliminated, utilize the feature of rectangular configuration self, positioning seat self poisoning is good, namely can prevent guidance set circumference from rotating, guarantee control rod accurate positioning simultaneously, anti-knock shock resistance ability strengthens, the rigidity of positioning seat is strong, instead of original split pin, avoid the problem that the load owing to using split pin to bring can differ from, the load-bearing capacity of whole guidance set strengthens, reliability is strong, further, original C shape groove quantity and position have been carried out new conceptual design, C shape groove quantity, double-hole tube and " C " shape pipe increasing number, can meet the guide-localization demand of many control rods.The endoporus of 8 double-hole tubes is each as fuel assembly bullport simultaneously, and exit orifice, as the pilot hole of fuel assembly, namely plays guiding protective effect to C&P systems, has the resistance that can reduce control rod and move up and down.Its upper end of cavity of upper hem plate composition is open type, and form the guidance set of open type tube bank type, current directly enter from the lower end of guidance set, flows out from upper end, and control rod is when current are integrated in side, and concussion reduces.
Accompanying drawing explanation
Fig. 1 is open type tube bank type Long travel continuous steerable modular construction schematic diagram of the present invention;
Fig. 2 is the A direction view of Fig. 1;
Fig. 3 is the B-B view in Fig. 1;
Fig. 4 a is flanged plate front elevation;
Fig. 4 b is the side view of Fig. 4 a;
Fig. 5 is the front view of mounting flange;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the front view of positioning seat;
Fig. 8 is the vertical view of Fig. 7;
Fig. 9 is the front view of fixed head;
Figure 10 is the vertical view of Fig. 9;
In figure: 1. upper hem plate; 2. mounting flange; 3. lower hem plate; 4. positioning seat; 5. fixed head; 6. double-hole tube; 7. " C " shape groove; 8. " C " shape pipe; 9. connecting pin; 10. housing screw; 11. elbows; 12. cylinders; 13. flange faces; 14. boss.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As depicted in figs. 1 and 2, guidance set of the present invention comprises the positioning seat 4 being arranged on bottom, fixedly mount the lower hem plate 3 that four pieces of vertical direction are installed above positioning seat 4, the upper end fixed installation mounting flange 2 of lower hem plate 3, installs four blocks of upper hem plates 1 by this mounting flange 2.Horizontal positioned fixed head 5 from level to level in the space that lower hem plate 3 and upper hem plate 1 surround.
As shown in Fig. 2, Fig. 3, Fig. 9 and Figure 10, every block fixed head 5 is fixedly mounted in upper hem plate 1 or lower hem plate 3 by connecting pin 9 and housing screw 10.This fixed head 5 is square plate, its corner is processed with fillet, rectangular opening is opened at center, " C " shape groove 7 is processed with on limit, hole, in the middle of this enforcement, " C " shape groove 7 is 16, wherein 4 are arranged on 4 angles of center pit, 4 centre positions being evenly arranged in the four edges of center pit, all the other 8 be positioned at above-mentioned 8 between any two.Weld double-hole tube 6 in 4 " C " shape grooves 7 in 4 " C " shape grooves on Angle Position and centre position, limit, such double-hole tube 6 is 8." C " shape pipe 8 is welded in all the other 8 " C " shape grooves.The long tube that above-mentioned double-hole tube 6 is two ends, a cross section is circular hole, centre is the rectangle in band gap, the circular hole at its two ends forms gathering sill.During welding, the side side weld at the circular hole place, one end of 8 double-hole tubes 6 connect in " C " shape groove 7, the circular hole of the other end is towards the center of fixed head 5.Such double-hole tube 6 welds the pilot hole of 8 circular holes in " C " shape groove 7 as fuel assembly, towards 8 circular holes at fixed head 5 center as bullport.Guiding protective effect is played to C&P systems, has the resistance that can reduce control rod and move up and down, guiding protective effect is played to C&P systems, have the resistance that can reduce control rod and move up and down.
The structure of vertical folding side plate as shown in Figure 4, it is rectangular slab, side is processed with elbow 11, when such four pieces of flanged plates 1,3 are trapped among together, form the rectangle with fillet as shown in Figures 2 and 3, the fixed head 5 being processed with fillet is placed in the space that flanged plate surrounds, and fixes with connecting pin 9 and housing screw 10.
As shown in Figure 5 and Figure 6, mounting flange 5 is an one workpiece, flange center cross section is the cylinder 12 of band round rectangle, the blue face 13 of the outer processing method of cylinder 12, the cross section of this cylinder is identical with the shape of fixed head 5, and the upper end of mounting flange 5 is fixedly connected with upper hem plate 1, in the present embodiment, first can be connected with pin with bolt, then weld, lower end is identical with the mounting means of lower hem plate 3.
As shown in Figure 7 and Figure 8, positioning seat 4 is a cross section is the column structure being with round rectangle, and be processed with boss 14 outside its sidewall, the lower end of lower hem plate 3 is fixedly mounted on boss 14, and connected mode can first be connected with pin with bolt, then welds.The cross section of positioning seat 4 upper end is identical with fixed head 5 shape.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.If these amendments and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. an open type tube bank type Long travel continuous steerable assembly, it comprises positioning seat (4), positioning seat (4) top is provided with 4 pieces of vertically disposed lower hem plates (3), lower hem plate (3) top is provided with mounting flange (2), mounting flange (2) top is provided with 4 pieces of vertically disposed upper hem plates (1), it is characterized in that: described lower hem plate (3) and upper hem plate (1) surround the space of upper end open, in the space that described upper hem plate (1) and lower hem plate (3) surround, level is provided with the fixed head (5) of stratiform, described fixed head (5) is rectangular slab, and center is processed with rectangular opening, and limit, hole is processed with " C " shape groove (7), and " C " shape groove (7) internal fixtion is provided with double-hole tube (6) and " C " shape pipe (8), described positioning seat (4) for cross section be band round rectangle column structure, be processed with boss (14) outside sidewall, the lower end of lower hem plate (3) is fixedly mounted on boss (14), the cross section of described positioning seat (4) upper end is identical with fixed head (5) shape.
2. open type tube bank type Long travel continuous steerable assembly as claimed in claim 1, it is characterized in that: described " C " shape groove (7) has 16, wherein 4 are arranged on the corner of central rectangular aperture, 4 centre positions being arranged on the four edges of center pit, all the other 8 " C " shapes groove (7) are positioned at above-mentioned 8 " C " shapes groove (7) between any two.
3. open type tube bank type Long travel continuous steerable assembly as claimed in claim 1 or 2, is characterized in that: the long tube that described double-hole tube (6) is two ends, a cross section is circular hole, centre is the rectangle in band gap.
4. open type tube bank type Long travel continuous steerable assembly as claimed in claim 1 or 2, it is characterized in that: described upper hem plate (1) and lower hem plate (3) are rectangular slab, dual-side is elbow (11), such 4 pieces of upper hem plates (1) and lower hem plate (3) are trapped among together, and its cavity cross-section surrounded is the rectangle with fillet.
5. open type tube bank type Long travel continuous steerable assembly as claimed in claim 4, is characterized in that: the corner of described fixed head (5) is processed with fillet, and the radius of this fillet is equal with the radius of corner of flanged plate elbow.
6. open type tube bank type Long travel continuous steerable assembly as claimed in claim 1 or 2, it is characterized in that: the central cross-section that described mounting flange (2) is integrated processing is the cylinder (12) being with round rectangle, cylinder (12) is outward flange face (13), and the cross section of cylinder (12) is identical with the shape of fixed head (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210186368.2A CN103474102B (en) | 2012-06-08 | 2012-06-08 | Open type tube bank type Long travel continuous steerable assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210186368.2A CN103474102B (en) | 2012-06-08 | 2012-06-08 | Open type tube bank type Long travel continuous steerable assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103474102A CN103474102A (en) | 2013-12-25 |
| CN103474102B true CN103474102B (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210186368.2A Active CN103474102B (en) | 2012-06-08 | 2012-06-08 | Open type tube bank type Long travel continuous steerable assembly |
Country Status (1)
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| CN (1) | CN103474102B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085332B (en) * | 2019-04-25 | 2024-08-09 | 中广核研究院有限公司 | Reactor control rod bundle guiding device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067983A (en) * | 1991-05-15 | 1993-01-13 | 法玛通公司 | The device that is used for vertical guidance of control rod cluster for nuclear reactor |
| CN202736503U (en) * | 2012-06-08 | 2013-02-13 | 中国核动力研究设计院 | Open-type tube-bundle type long stroke continuous guiding assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5237595A (en) * | 1990-02-26 | 1993-08-17 | Westinghouse Electric Corp. | Guide plate for guide tubes used in nuclear reactors |
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2012
- 2012-06-08 CN CN201210186368.2A patent/CN103474102B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067983A (en) * | 1991-05-15 | 1993-01-13 | 法玛通公司 | The device that is used for vertical guidance of control rod cluster for nuclear reactor |
| CN202736503U (en) * | 2012-06-08 | 2013-02-13 | 中国核动力研究设计院 | Open-type tube-bundle type long stroke continuous guiding assembly |
Non-Patent Citations (2)
| Title |
|---|
| 核反应堆控制棒导向筒连续段的焊接变形控制;俞欣 等;《装备机械》;20141231(第4期);16-19页 * |
| 秦山核电二期工程控制棒导向组件动态特性试验研究;喻丹萍 等;《核动力工程》;20030630;第24卷(第2期);175-176 * |
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| CN103474102A (en) | 2013-12-25 |
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