CN205406104U - Position adjustment device of pressurized -water reactor fuel assemblies fuel rod in skeleton - Google Patents
Position adjustment device of pressurized -water reactor fuel assemblies fuel rod in skeleton Download PDFInfo
- Publication number
- CN205406104U CN205406104U CN201521130315.4U CN201521130315U CN205406104U CN 205406104 U CN205406104 U CN 205406104U CN 201521130315 U CN201521130315 U CN 201521130315U CN 205406104 U CN205406104 U CN 205406104U
- Authority
- CN
- China
- Prior art keywords
- fuel rod
- fuel
- skeleton
- rod
- threaded rod
- 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.)
- Active
Links
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
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model belongs to the pressurised water nuclear power fuel assembly manufacturing technology specifically discloses a position adjustment device of pressurized -water reactor fuel assemblies fuel rod in skeleton, including fixed mounting's orifice plate and threaded rod, the one end of threaded rod is passed the hole of orifice plate, that wears out one serves and is equipped with the nut, the other end of threaded rod be equipped with the grappling fixture. Through the cooperation of nut and threaded rod, utilize sleeve and grappling fixture fixed with the fuel rod installation, the threaded rod rotates for the orifice plate, drives the fuel rod and rotates to for orifice plate position removal, thereby making the position of fuel rod obtain the adjustment back, satisfying the position requirement of fuel rod in the skeleton, once the position adjustment with the fuel rod targets in place, avoids unnecessary economic loss.
Description
Technical field
This utility model belongs to compressed water reactor nuclear power fuel assembly manufacturing technology, is specifically related to a kind of fuel rod position regulator in skeleton.
Background technology
In the process that PWR fuel assembly assembles, the position that skeleton is fixing drawn in by 264 fuel rods, it is desirable to the distance between fuel rod and bottom nozzle is 18 ± 2mm.In qualified scope, on average every 100 there will be a fuel rod with fuel rod and are pulled through the phenomenon of head, and namely this fuel rod is with remaining fuel rod not in the same plane, but protrudes.Thus need the position of fuel rod is adjusted.
The method taked at present is, the fuel rod entirety being pulled through head is pulled out from skeleton, more again draws in skeleton, be so made with following risk:
1, fuel rod is through twice scuffing, adds the risk revealed in reactor；
If 2 these fuel rods of second time are pulled through head again, again this fuel rod cannot be processed, scrapping of whole skeleton can be caused.(value of each skeleton about 2,000,000)
Summary of the invention
The purpose of this utility model is in that the position regulator providing a kind of PWR fuel assembly fuel rod in skeleton, and it can be adjusted by the disposable fuel rod to being pulled through head so that it is the distance reached between technical conditions fuel rod and bottom nozzle reaches requirement.
The technical solution of the utility model is as follows:
A kind of PWR fuel assembly fuel rod position regulator in skeleton, including hard-wired orifice plate and threaded rod, one end of described threaded rod is through the hole of described orifice plate, and the one end passed is provided with nut, and the other end of described threaded rod is provided with grappling fixture.
In above-mentioned PWR fuel assembly fuel rod position regulator in skeleton: be provided with sleeve pipe between described grappling fixture and threaded rod.
In above-mentioned PWR fuel assembly fuel rod position regulator in skeleton: described nut is six square nuts.
In above-mentioned PWR fuel assembly fuel rod position regulator in skeleton: also include base, described base upper end is fixed and is connected described orifice plate lower end.
The beneficial effects of the utility model are in that: by the cooperation of nut and threaded rod, sleeve and grappling fixture is utilized to be installed by fuel rod fixing, threaded rod rotates relative to orifice plate, drive fuel rod rotates, thus moving relative to orifice plate position, so that after the position of fuel rod is adjusted, meet fuel rod status requirement in skeleton, once the position adjustment of fuel rod is put in place, it is to avoid unnecessary economic loss.
Accompanying drawing explanation
Fig. 1 is PWR fuel assembly fuel rod position regulator schematic diagram in skeleton；
In figure: 1. base；2. orifice plate；3. nut；4. threaded rod；5. sleeve pipe；6. grappling fixture；7. fuel rod.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, this utility model is described in further detail.
As it is shown in figure 1, fixedly mounted by base 1, orifice plate 2 presses chapter on base 1 by screw is fixing.
Threaded rod 4 is inserted in hole on orifice plate 2, is adjusted the position of fuel rod 7 by threaded rod 4.
One end through orifice plate 2 of threaded rod 4 is fixed with nut 3, and the other end installs sleeve pipe 5 and grappling fixture 6, the end plug of the fixing fuel rod 7 needing to adjust of grappling fixture 6 successively.
During use, fix the nut 3 of threaded rod 2 rear end with spanner, rotate nut, make threaded rod 4 and fuel rod 7 retreat at leisure, reach to adjust the purpose of fuel rod 7 position.
Described base 1 lower end is base plate, and base plate is installed riser, fixedly mounts gusset between riser and base plate.Gusset, base plate and riser can adopt the mode of integration processing, it is also possible to three welded together.Gusset can further such that base 1 be solid and reliable.
The lower end of described orifice plate 2 is by screw and the riser upper end fixed installation in base 1, and orifice plate 2 and riser are generally aligned in the same plane.After base 1 is fixing, the relative position of orifice plate 2 also remains unchanged, then when adjusting the position of fuel rod 7, it is possible to utilize orifice plate 2 to do reference, it is judged that the position adjustment state of fuel rod.
Threaded rod 4 can adopt two sections to connect to form, and external screw thread is suitable with the hole female thread of orifice plate 2.By installing nut 3 in the side of orifice plate 2, the position of threaded rod 4 is moved adjustment relative to orifice plate 2, thus regulating the position of fuel rod 7.
Nut 3 can adopt six square nuts, and six square nuts match with spanner, it is possible to threaded rod 2 is rotated, and drives fuel rod 7 to rotate.After fuel rod 7 is adjusted in place, being removed by sleeve pipe 5, grappling fixture 6 opens, and unclamps fuel rod 7.
Claims (4)
1. the PWR fuel assembly fuel rod position regulator in skeleton, including hard-wired orifice plate (2) and threaded rod (4), it is characterized in that: one end of described threaded rod (4) is through the hole of described orifice plate (2), the one end passed is provided with nut (3), and the other end of described threaded rod (4) is provided with grappling fixture (6).
2. PWR fuel assembly fuel rod position regulator in skeleton as claimed in claim 1, it is characterised in that: it is provided with sleeve pipe (5) between described grappling fixture (6) and threaded rod (4).
3. PWR fuel assembly fuel rod position regulator in skeleton as claimed in claim 1 or 2, it is characterised in that: described nut (3) is six square nuts.
4. PWR fuel assembly fuel rod position regulator in skeleton as claimed in claim 1 or 2, it is characterized in that: also include base (1), described base (1) upper end is fixed and is connected described orifice plate (2) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130315.4U CN205406104U (en) | 2015-12-30 | 2015-12-30 | Position adjustment device of pressurized -water reactor fuel assemblies fuel rod in skeleton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130315.4U CN205406104U (en) | 2015-12-30 | 2015-12-30 | Position adjustment device of pressurized -water reactor fuel assemblies fuel rod in skeleton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205406104U true CN205406104U (en) | 2016-07-27 |
Family
ID=56450319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521130315.4U Active CN205406104U (en) | 2015-12-30 | 2015-12-30 | Position adjustment device of pressurized -water reactor fuel assemblies fuel rod in skeleton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205406104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605943A (en) * | 2020-11-27 | 2021-04-06 | 中核核电运行管理有限公司 | Method for remotely exchanging fuel channel positioning end and free end of heavy water reactor nuclear power station |
-
2015
- 2015-12-30 CN CN201521130315.4U patent/CN205406104U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605943A (en) * | 2020-11-27 | 2021-04-06 | 中核核电运行管理有限公司 | Method for remotely exchanging fuel channel positioning end and free end of heavy water reactor nuclear power station |
| CN112605943B (en) * | 2020-11-27 | 2022-08-19 | 中核核电运行管理有限公司 | Method for remotely exchanging fuel channel positioning end and free end of heavy water reactor nuclear power station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205406104U (en) | Position adjustment device of pressurized -water reactor fuel assemblies fuel rod in skeleton | |
| CN204221722U (en) | Power plant is large-scale to be threaded parts mounting auxiliary without guide frame | |
| CN205979011U (en) | Adjustable supporting leg | |
| CN207479946U (en) | Transformer tube weld tooling | |
| CN203738220U (en) | Quick positioning tooling for welding of panel and nut | |
| CN107263385A (en) | A kind of drawing type installs the device of interference fit bearing pin and its method for installing interference fit bearing pin | |
| CN204450324U (en) | A kind of vacuum bubbles compression tooling | |
| CN106392945B (en) | Detachable thrustor test tool fixture | |
| CN203690093U (en) | Amorphous alloy transformer assembling tool | |
| CN205985704U (en) | Coaxial positioner of semi -rigid cable subassembly outer conductor welding | |
| CN204975831U (en) | Full -automatic welding machine's fixing device | |
| CN210998286U (en) | Turbine blade machining positioning device | |
| CN201405279Y (en) | Draw rod assembly overall length regulating device | |
| CN208147690U (en) | It is a kind of for process load compressor housings flange fixing tool | |
| CN202317034U (en) | Automatic discharging device suitable for processing air inlet pipe of engine | |
| CN207071888U (en) | A kind of screw dismounting tool | |
| CN208198674U (en) | A kind of electric vehicle canopy frame connecting structure | |
| CN205150776U (en) | Cell body water level regulating device | |
| CN204279965U (en) | A kind of new work engine mounting structure | |
| CN203853894U (en) | Shot peening strengthening tooling for outer wall of barrel-shaped connecting part | |
| CN204061060U (en) | Mechanical type wind wheel lock | |
| CN215105735U (en) | Pressure tank for water supply | |
| CN102476340A (en) | Device for trimming and grinding outline of lathe body of turning lathe | |
| CN208252546U (en) | A kind of stay-bolt for embracing pricker device for deep hole trolley | |
| CN204344736U (en) | A kind of automotive transmission loading bench output terminal flexible drive device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |