CN202373314U - Special tool for position enlarging of reactor core fuel subassembly - Google Patents
Special tool for position enlarging of reactor core fuel subassembly Download PDFInfo
- Publication number
- CN202373314U CN202373314U CN2011204109344U CN201120410934U CN202373314U CN 202373314 U CN202373314 U CN 202373314U CN 2011204109344 U CN2011204109344 U CN 2011204109344U CN 201120410934 U CN201120410934 U CN 201120410934U CN 202373314 U CN202373314 U CN 202373314U
- Authority
- CN
- China
- Prior art keywords
- piston
- sleeve
- base plate
- tool heads
- bracket sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 title abstract description 7
- 239000003758 nuclear fuel Substances 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 244000188472 Ilex paraguariensis Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model relates to a special tool for position enlarging of a reactor core fuel subassembly. The special tool comprises a tool head bracket sleeve, a bottom plate, a connecting sleeve, a guide sleeve and an end cover, wherein the bottom plate is fixedly arranged at one end of the tool head bracket sleeve, the connecting sleeve is sleeved at the other end of the tool head bracket sleeve by threads, the guide sleeve is sleeved at the other end of the connecting sleeve, and the end cover is fixedly arranged at the other end of the guide sleeve; a piston is arranged at the inner part of the tool head bracket sleeve, two wing-shaped plates are symmetrically and fixedly arranged at one end edge of the piston, and the other end of the piston is connected with a core plate, a lifting screw nut, a screw rod and a hand wheel in sequence; two rectangular grooves are arranged in the tool head bracket sleeve, two support legs are movably connected in the rectangular grooves, the other ends of the two support legs pass through the bottom plate to be movably connected with one ends of two ejector rods, the other ends of the two ejector rods are clamped by the other ends of the two wing-shaped plates together and are movably connected with the two wing-shaped plates. According to the special tool, the structure is simple, the processing and the manufacturing are convenient, the installation and the adjustment are easy, the operability is strong, and the problem that the fuel subassembly can not be loaded easily can be solved.
Description
Technical field
The utility model relates to a kind of reactor fuel assembly specific purpose tool, particularly relates to a kind of reactor fuel assembly of having realized and produces the specific purpose tool of expansion Bit Shift.
Background technology
Reactor reloading pattern is one of most important link in the nuclear power station overhaul process, and main at present the employing hangs out the part assembly, arranges or change the assembly solve problem then again.Under existing core loading pattern; Complicated operating process, the working time is long, security and accuracy that influence is reloaded and operated; And having target bit is three or four sides assembly situation about contacting simultaneously; Because assembly has distortion in various degree after by irradiation, the accuracy of refueling machine elements of a fix debugging neither be all identical at every turn in addition, and overhaul has individual component and is difficult to be loaded into reactor core between loading period.
Summary of the invention
The technical matters that the utility model reactor fuel assembly expansion position specific purpose tool will solve is need not adjust under the situation of module position, base generation slight displacement on the assembly around promoting as much as possible.
In order to solve the problems of the technologies described above; The utility model adopts following technical scheme: a kind of reactor fuel assembly expands the position specific purpose tool; Comprise tool heads bracket sleeve tube, coupling sleeve, pilot sleeve, piston, core bar, lifting nut, end cap, handwheel, said tool heads bracket sleeve tube one end is fixedly connected with base plate, and the tool heads bracket sleeve tube other end is connected with coupling sleeve one end; The other end of coupling sleeve is connected with an end of pilot sleeve, and the other end of this pilot sleeve is connected with end cap; Core bar is connected with an end of piston, and the core bar other end is connected with lifting nut, and an end of the lifting nut other end and screw rod flexibly connects; It is inner that said piston is arranged on the tool heads bracket sleeve tube, and the other end of said screw rod passes end cap and is connected with handwheel;
Also comprise two aerofoil profile plates that are connected the other end alive edge symmetrically, two support legs, two push rods; The tool heads bracket sleeve tube end that is connected with base plate is provided with radial flange; On this radial flange, be provided with the radially penetrating rectangular channel of two symmetries; These two rectangular channel cell walls flexibly connect with two support leg one ends respectively; Base plate radially has two axial penetrating rectangle gathering sills in the position that two support legs pass, and the support leg can freely swing in said rectangle gathering sill and rectangular channel, and the other end of these two support legs passes base plate and flexibly connects with two push rod one ends respectively; The other end of these two push rods is by the common clamping of the other end of two aerofoil profile plates, and flexibly connects with two aerofoil profile plates.
Said piston can be selected hollow structure for use.
Described base plate is a square, and piston can move axially in tool heads bracket sleeve tube and base plate circular through-hole.
Said support leg and rectangular channel be connected, support being connected of leg and push rod, push rod is connected with the aerofoil profile plate, all is to connect through pin.
Said aerofoil profile plate Wei “ ╰ " shape curved surface bent plate, the tangent line at these curved surface bent plate two ends is orthogonal.
The effect of the utility model is: this tool construction is simple, and convenient processing and manufacture is installed adjustment easily, and is workable; Fiduciary level is high, has simplified present operating process greatly, need not adjust under the situation of module position; Base generation slight displacement on the assembly around promoting as much as possible satisfies by the space requirement of arrangement, guarantees the reactor core assembly reactor core of packing into smoothly; Solve fuel assembly and load difficult problem, the security and the accuracy of the operation that guaranteed to reload have shortened the overhaul duration.
Description of drawings
Fig. 1 expands position specific purpose tool structural representation for a kind of reactor fuel assembly that the utility model provided.
Among the figure: 1. push rod; 2. support leg; 3. base plate; 4. piston; 5. tool heads bracket sleeve tube; 6. core bar; 7. coupling sleeve; 8. lifting nut; 9. pilot sleeve; 10. screw rod; 11. end cap; 12. handwheel; 13. aerofoil profile plate; 14. gathering sill.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1; A kind of reactor fuel assembly expands the position specific purpose tool; Comprise tool heads bracket sleeve tube 5, coupling sleeve 7, pilot sleeve 9; Said tool heads bracket sleeve tube 5 is three layers of boss tube-in-tube structure, and an end of the boss that tool heads bracket sleeve tube 5 external diameters are maximum is welded on the square floor 3, and this base plate 3 has circular through-hole; It is outside that coupling sleeve 7 one ends are connected on the minimum boss of the external diameter of this tool heads bracket sleeve tube 5 through thread bush, and the other end of coupling sleeve 7 is connected on an end of pilot sleeve 9 through thread bush, and the other end of this pilot sleeve 9 has end cap 11 through screw retention;
Said tool heads bracket sleeve tube 5 inside are provided with the piston 4 of three layers of boss hollow structure that mate with its internal diameter; It is the internal diameter coupling of boss external diameter and tool heads bracket sleeve tube 5 minimum outer diameter boss of the minimum outer diameter of piston 4; Similarly the external diameter of two other boss of piston 4 all matees with tool heads bracket sleeve tube 5 corresponding boss internal diameters, and piston 4 can move axially in tool heads bracket sleeve tube 5 and base plate 3 circular through-holes; One end margin of piston 4 maximum outside diameters is welded with the aerofoil profile plate 13 of two
shapes symmetrically; The boss end cover of the minimum outer diameter of piston 4 is welded in an end of core bar 6; Core bar 6 passes the minimum boss inside of external diameter of tool heads bracket sleeve tube 5; And it is fixing with the end welding that is arranged on the coupling sleeve 7 and the lifting nut that can move vertically 8 of pilot sleeve 9 inside; The other end of this lifting nut 8 and screw rod 10 flexibly connects through screw thread, and the handwheel 12 that the other end of said screw rod 10 passes end cap 11 and pilot sleeve 9 outsides is fixedly connected through screw thread;
The maximum boss of the external diameter of tool heads bracket sleeve tube 5 along an end of tool heads bracket sleeve tube 5 axially on sleeve wall, have two symmetries along the radially penetrating rectangular channel 14 of tool heads bracket sleeve tube 5; The cell wall of these two rectangular channels 14 flexibly connects with two support leg 2 one ends respectively through pin; Base plate 3 radially has two axial penetrating rectangle gathering sills 15 in the position that two support legs 2 pass; Support leg 2 can freely swing in said rectangle gathering sill 15 and rectangular channel 14; The other end of two support legs 2 passes base plate 3 and flexibly connects with two push rod 1 one ends respectively through pin; The other end of two push rods 1 flexibly connects by the common clamping of the other end of two aerofoil profile plates 13 and through pin and two aerofoil profile plates 13, and said aerofoil profile plate 13 is the curved surface bent plate, and the tangent line at these curved surface bent plate two ends is orthogonal.
When the reactor fuel assembly is expanded the position, at first rotate handwheel 12 and drive screw rod 10 rotations, screw rod 10 interlock lifting nuts 8 move up and down; Lifting nut 8 downward (away from the handwheel direction) motion drives core bar 6 and then promotes piston 4 and thinks motion down, and last piston 4 drives aerofoil profile plate 13 and moves downward; Aerofoil profile plate 13 and then drive push rod 1 and 2 interlocks of support leg; Make tool heads be in contraction state, then instrument is transferred the fuel assembly top of expanding the position to needs, utilize base plate 3 to be supported on the leaf spring of fuel assembly.
Secondly, handwheel 12 in the other direction, screw rod 10 upwards spurs core bar 6 through lifting nut, and core bar drives on the piston 4 and moves, and then drives support leg about 2 and open, and promotes base on the fuel of both sides, accomplishes and expands the position.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Belong within the scope of the utility model claim and equivalent technologies thereof if these are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
Claims (5)
1. a reactor fuel assembly expands the position specific purpose tool; Comprise tool heads bracket sleeve tube (5), coupling sleeve (7), pilot sleeve (9), piston (4), core bar (6), lifting nut (8), end cap (11), handwheel (12); Said tool heads bracket sleeve tube (5) one ends are fixedly connected with base plate (3); Tool heads bracket sleeve tube (5) other end is connected with coupling sleeve (7) one ends, and the other end of coupling sleeve (7) is connected with an end of pilot sleeve (9), and the other end of this pilot sleeve (9) is connected with end cap (11); Core bar (6) is connected with an end of piston (4), and core bar (6) other end is connected with lifting nut (8), and an end of lifting nut (8) other end and screw rod (10) flexibly connects; Said piston (4) is arranged on tool heads bracket sleeve tube (5) inside, and the other end of said screw rod (10) passes end cap (11) and is connected with handwheel (12);
It is characterized in that: also comprise two aerofoil profile plates (13) of being connected piston (4) other end edge symmetrically, two support legs (2), two push rods (1); Tool heads bracket sleeve tube (5) end that is connected with base plate (3) is provided with radial flange; On this radial flange, be provided with the radially penetrating rectangular channel (14) of two symmetries; This two rectangular channels (14) cell wall flexibly connects with two support leg (2) one ends respectively; Base plate (3) radially has two axial penetrating rectangle gathering sills (15) in the position that two support legs (2) pass; Support leg (2) can freely swing in said rectangle gathering sill (15) and rectangular channel (14); The other end of these two support legs (2) passes base plate (3) and flexibly connects with two push rods (1) one end respectively, and the other end of these two push rods (1) is by the common clamping of the other end of two aerofoil profile plates (13), and flexibly connects with two aerofoil profile plates (13).
2. expand the position specific purpose tool according to the described a kind of reactor fuel assembly of claim 1, it is characterized in that: said piston (4) is a hollow structure.
3. expand the position specific purpose tool according to the described a kind of reactor fuel assembly of claim 1; It is characterized in that: described base plate (3) is square; Base plate (3) has circular through-hole, and piston (4) can move axially in tool heads bracket sleeve tube (5) and base plate (3) circular through-hole.
4. expand a position specific purpose tool according to the described a kind of reactor fuel assembly of claim 1, it is characterized in that: said support leg (2) and rectangular channel be connected, support being connected of leg (2) and push rod (1), push rod (1) is connected with aerofoil profile plate (13), all is through the connection of pinning.
5. expand a position specific purpose tool according to the described a kind of reactor fuel assembly of claim 1, it is characterized in that: said aerofoil profile plate (13) Wei “ ╰ " shape curved surface bent plate, the tangent line at these curved surface bent plate two ends is orthogonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204109344U CN202373314U (en) | 2011-10-25 | 2011-10-25 | Special tool for position enlarging of reactor core fuel subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204109344U CN202373314U (en) | 2011-10-25 | 2011-10-25 | Special tool for position enlarging of reactor core fuel subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202373314U true CN202373314U (en) | 2012-08-08 |
Family
ID=46597008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204109344U Expired - Lifetime CN202373314U (en) | 2011-10-25 | 2011-10-25 | Special tool for position enlarging of reactor core fuel subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202373314U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509566A (en) * | 2018-11-29 | 2019-03-22 | 上海核工程研究设计院有限公司 | A kind of in-pile instrument sheath assembly hand-rail type gripping tool |
| CN113871041A (en) * | 2021-09-26 | 2021-12-31 | 中国原子能科学研究院 | Control rod assembly mounting method, control rod assembly removing method and control rod assembly replacing method |
-
2011
- 2011-10-25 CN CN2011204109344U patent/CN202373314U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509566A (en) * | 2018-11-29 | 2019-03-22 | 上海核工程研究设计院有限公司 | A kind of in-pile instrument sheath assembly hand-rail type gripping tool |
| CN113871041A (en) * | 2021-09-26 | 2021-12-31 | 中国原子能科学研究院 | Control rod assembly mounting method, control rod assembly removing method and control rod assembly replacing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 430223 Wuhan Province, East Lake New Technology Development Zone, national Avenue, No. 1021, No. Patentee after: China Nuclear Power Operation Technology Co., Ltd. Address before: 430223 Wuhan East Lake hi tech Development Zone Wuhan Hubei hi tech Development Zone the Great Wall innovation science and Technology Park Patentee before: China Nuclear Power Operation Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |