CN109979629A - A kind of underwater attaching/detaching apparatus of upper pipe seat of fuel component - Google Patents
A kind of underwater attaching/detaching apparatus of upper pipe seat of fuel component Download PDFInfo
- Publication number
- CN109979629A CN109979629A CN201711444110.7A CN201711444110A CN109979629A CN 109979629 A CN109979629 A CN 109979629A CN 201711444110 A CN201711444110 A CN 201711444110A CN 109979629 A CN109979629 A CN 109979629A
- Authority
- CN
- China
- Prior art keywords
- tube socket
- attaching
- detaching apparatus
- pipe seat
- fuel component
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
- G21C19/10—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements
- G21C19/105—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements with grasping or spreading coupling elements
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The present invention relates to fuel assembly recovery technique fields, specifically disclose a kind of underwater attaching/detaching apparatus of upper pipe seat of fuel component.Telescope-srew guide plate in the device is mounted on the middle position of mounting plate, and when being mounted on the attaching/detaching apparatus in upper pipe seat of fuel component, the hole location on telescope-srew guide plate is corresponding with the telescope-srew position in upper pipe seat of fuel component；Tube socket installation positioning pin is symmetrically mounted on the diagonal angle of mounting plate on two groups, and when the attaching/detaching apparatus is mounted on upper tube socket, upper tube socket installation positioning pin is inserted into respectively in two dowel holes of tube socket upper surface, and the expanding structure of positioning pin lower end is installed by upper tube, realize fixing or loosening for the attaching/detaching apparatus and upper tube socket.Can remote-controlled operation realization upper pipe seat of fuel component is removed and is installed under water；Meanwhile the device can effectively avoid and go up undesirably falling off for tube socket in transfer process, and can remove with the device after the dismounting of upper tube socket.
Description
Technical field
The invention belongs to fuel assembly recovery technique fields, and in particular to a kind of upper pipe seat of fuel component dismounts dress under water
It sets.
Background technique
Fuel assembly is influenced in operation use process by various factors such as water impact, vibration, irradiation, is existed certain
Breakage rate.If breakage occurs in fuel rod, it will lead to fission product and leak, cause primary Ioops radioactive level to increase, influence core
The economy and safety in power station.Therefore, it is necessary to implement to repair to the damaged fuel assembly of not up to burn-up level, replacement is broken
The fuel rod of damage guarantees reactor safety, reliably runs.
When implementing single rod Replacement and Repair to fuel assembly, need to remove upper pipe seat of fuel component, since fuel assembly has
Radioactivity, this work must complete (at least 3m under water) under water, while require the upper pipe seat of fuel component after removing not
The water surface can be taken out, it is therefore necessary to design the underwater attaching/detaching apparatus of a set of upper pipe seat of fuel component, guarantee upper pipe seat of fuel component peace
It is able to achieve after full dismounting and it is transported, keep in it still under water, later after the completion of component repair, again by upper tube socket
It installs, should ensure that the safety of fuel assembly and upper tube socket in whole process, do not allow that equipment is caused to damage or cause upper tube
Seat is inadvertently fallen off.
Summary of the invention
The purpose of the present invention is to provide a kind of underwater attaching/detaching apparatus of upper pipe seat of fuel component, it can be achieved that under water to fuel
Tube socket is dismounted and is transported on component.
Technical scheme is as follows: a kind of underwater attaching/detaching apparatus of upper pipe seat of fuel component, which includes upper
Tube socket installs positioning pin, telescope-srew guide plate and mounting plate, wherein telescope-srew guide plate is mounted on the centre of mounting plate
Position, hole location and fuel assembly when being mounted on the attaching/detaching apparatus in upper pipe seat of fuel component, on telescope-srew guide plate
Telescope-srew position on upper tube socket is corresponding；Tube socket installation positioning pin is symmetrically mounted on the diagonal angle of mounting plate on two groups, and
When the attaching/detaching apparatus is mounted on upper tube socket, upper tube socket installation positioning pin is inserted into two positioning pins of tube socket upper surface respectively
Kong Zhong, and the expanding structure of positioning pin lower end is installed by upper tube, realize fixing or loosening for the attaching/detaching apparatus and upper tube socket.
Support column A and support column B is equipped with below the mounting plate, it is fixed to be located in upper tube socket in upper tube socket installation positioning pin
When in the pin hole of position, support column A and the lower end surface support column B are developed with upper tube socket upper surface；The upper tube socket installation positioning pin is worn
It crosses and is mounted in support column B.
The described upper tube socket installation positioning pin includes square cotter, core bar and bulging pawl, wherein be cased with the core bar of bulging pawl from
It penetrates below support column B, and is connected by screw thread with the square cotter above mounting plate, wherein core bar lower end is that taper is oblique
Face structure matches with bulging pawl end, and rotates using bulging pawl and core bar is driven to move up and down, so that bulging pawl be supportted
It opens or loosens.
The attaching/detaching apparatus further includes lifting operation bar, wherein two lifting operation bars are symmetrically mounted on mounting plate
Diagonal angle, and groove structure is equipped on lifting operation bar, the groove of lifting operation bar, realization pair can be clamped by long rod tool
The movement of entire attaching/detaching apparatus.
The mounting plate side plate is equipped with the installation hole location of conforming sleeves screw, can in advance be placed in telescope-srew
On mounting plate.
24 telescope-srews being provided on the telescope-srew guide plate in 24 hole locations, with upper pipe seat of fuel component
Position is corresponding, and provides positioning and guiding for the installation of telescope-srew.
Remarkable result of the invention is: a kind of underwater attaching/detaching apparatus of upper pipe seat of fuel component of the present invention, can be remote
Distance operation, which is realized, is removed and is installed to upper pipe seat of fuel component under water；Meanwhile the device can effectively avoid and shift
Undesirably falling off for tube socket is gone up in journey, and can be removed with the device after the dismounting of upper tube socket；In addition, the device can also be upper tube
The dismounting of seat telescope-srew provides positioning and guiding.
Detailed description of the invention
Fig. 1 is a kind of underwater attaching/detaching apparatus structural schematic diagram of upper pipe seat of fuel component of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is that upper tube socket installs locating pin structure schematic diagram in Fig. 1；
In figure: 1, upper tube socket installs positioning pin；2, actuating rod is lifted；3, telescope-srew guide plate；4, support column A；5, pacify
Loading board；6, square cotter；7, core bar；8, support column B；9, bulging pawl.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in Figures 1 to 3, the underwater attaching/detaching apparatus of a kind of upper pipe seat of fuel component, including upper tube socket installation positioning pin 1, set
Cylinder screw guide plate 3 and mounting plate 5, wherein telescope-srew guide plate 3 is mounted on the middle position of mounting plate 5, two groups of upper tubes
Seat installation 1, two lifting operation bar 2 of positioning pin is symmetrically mounted on the diagonal angle of mounting plate 5 respectively, sets on lifting operation bar 2
Fluted structure can clamp the groove of lifting operation bar 2 by long rod tool, and the placement of entire attaching/detaching apparatus is underwater
In upper pipe seat of fuel component；24 sleeves being provided on telescope-srew guide plate 3 in 24 hole locations, with upper pipe seat of fuel component
Screw position is corresponding, and provides positioning and guiding for the installation of telescope-srew；24 adaptation sets are equipped in the side of mounting plate 5
24 telescope-srews, can be mounted in advance on mounting plate 5 by the installation position of cylinder screw；Branch is also equipped in the lower end of mounting plate 5
Dagger A4 and support column B8, upper tube socket installation positioning pin 1 are passed through and are mounted in support column B8, and the attaching/detaching apparatus is made to be mounted on combustion
When expecting tube socket upper surface on component, upper tube socket installation positioning pin 1 is inserted into respectively in two dowel holes of tube socket upper surface, and
Develop the lower end surface of support column A4 and support column B8 with upper tube socket upper surface；Upper tube socket installation positioning pin 1 includes square cotter 6, core
Bar 7 and bulging pawl 9, wherein the core bar 7 for being cased with bulging pawl 9 penetrates below support column B8, and passes through screw thread and mounting plate 5
The square cotter 6 of top is connected, wherein 7 lower end of core bar is tapered slope structure, matches with 9 end of bulging pawl, passes through
Rotation square cotter 6 drives core bar 7 to move up, and bulging pawl 9 is opened and block upper tube socket by the bevel structure of 7 lower end of core bar to be determined
Position pin hole tail end, so that the attaching/detaching apparatus be made to be fixed as one with upper tube socket, and can transport together upper tube socket；Meanwhile from another
One direction rotates square cotter 6, and bulging pawl 9 can be made to retract, loosen the attaching/detaching apparatus with upper tube socket.
Claims (6)
1. a kind of underwater attaching/detaching apparatus of upper pipe seat of fuel component, it is characterised in that: the attaching/detaching apparatus includes upper tube socket installation positioning
Sell (1), telescope-srew guide plate (3) and mounting plate (5), wherein telescope-srew guide plate (3) is mounted on mounting plate (5)
Middle position, hole location and fuel when being mounted on the attaching/detaching apparatus in upper pipe seat of fuel component, on telescope-srew guide plate
Telescope-srew position on component on tube socket is corresponding；Tube socket installation positioning pin (1) is symmetrically mounted on mounting plate (5) on two groups
Diagonal angle, and when the attaching/detaching apparatus is mounted on upper tube socket, upper tube socket installation positioning pin (1) is inserted into upper tube socket upper surface respectively
Two dowel holes in, and by upper tube install positioning pin (1) lower end expanding structure, realize the attaching/detaching apparatus and upper tube
Seat is fixed or is loosened.
2. the underwater attaching/detaching apparatus of a kind of upper pipe seat of fuel component according to claim 1, it is characterised in that: the installation
It is equipped with support column A (4) and support column B (8) below plate (5), is located in upper tube socket dowel hole in upper tube socket installation positioning pin (1)
When middle, support column A (4) and (8) lower end surface support column B are developed with upper tube socket upper surface；The upper tube socket installs positioning pin (1)
It passes through and is mounted in support column B (8).
3. the underwater attaching/detaching apparatus of a kind of upper pipe seat of fuel component according to claim 2, it is characterised in that: the upper tube
Seat installation positioning pin (1) includes square cotter (6), core bar (7) and bulging pawl (9), wherein be cased with the core bars (7) of bulging pawl (9) from
It penetrates below support column B (8), and is connected by screw thread with the square cotter (6) above mounting plate (5), wherein core bar (7) lower end
End is tapered slope structure, is matched with bulging pawl (9) end, and rotates and driven on core bar (7) using bulging pawl (9)
Lower movement, to strut or loosen bulging pawl (9).
4. the underwater attaching/detaching apparatus of a kind of upper pipe seat of fuel component according to claim 1, it is characterised in that: the dismounting
Device further includes lifting operation bar (2), wherein and two lifting operation bars (2) are symmetrically mounted on the diagonal angle of mounting plate (5), and
It is equipped with groove structure on lifting operation bar (2), the groove of lifting operation bar (2) can be clamped by long rod tool, is realized to whole
The movement of a attaching/detaching apparatus.
5. the underwater attaching/detaching apparatus of a kind of upper pipe seat of fuel component according to claim 1, it is characterised in that: the installation
Plate (5) side plate is equipped with the installation hole location of conforming sleeves screw, and telescope-srew can be placed on mounting plate (5) in advance.
6. the underwater attaching/detaching apparatus of a kind of upper pipe seat of fuel component according to claim 1, it is characterised in that: the sleeve
24 hole locations are provided on screw guide plate (3), it is corresponding with 24 telescope-srew positions in upper pipe seat of fuel component, and be
The installation of telescope-srew provides positioning and guiding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711444110.7A CN109979629A (en) | 2017-12-27 | 2017-12-27 | A kind of underwater attaching/detaching apparatus of upper pipe seat of fuel component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711444110.7A CN109979629A (en) | 2017-12-27 | 2017-12-27 | A kind of underwater attaching/detaching apparatus of upper pipe seat of fuel component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109979629A true CN109979629A (en) | 2019-07-05 |
Family
ID=67072042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711444110.7A Pending CN109979629A (en) | 2017-12-27 | 2017-12-27 | A kind of underwater attaching/detaching apparatus of upper pipe seat of fuel component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109979629A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2722323A1 (en) * | 1994-07-07 | 1996-01-12 | Framatome Sa | Protecting guide tubes in PWR fuel assembly during pin replacement |
| US6320922B1 (en) * | 1999-05-07 | 2001-11-20 | General Electric Company | Tool for retracting fuel rods from and inserting fuel rods into a nuclear fuel assembly and methods therefor |
| FR3007568A1 (en) * | 2013-06-24 | 2014-12-26 | Reel | TOOL FOR HANDLING A COMBUSTIBLE ASSEMBLY AND ITS ACCESSORIES, AND METHOD FOR CENTERING SAID TOOL IN RELATION TO THE COMBUSTIBLE ASSEMBLY |
| CN105023623A (en) * | 2015-06-24 | 2015-11-04 | 中广核核电运营有限公司 | Nuclear fuel assembly repair device and method |
| CN106128530A (en) * | 2016-07-05 | 2016-11-16 | 中国核动力研究设计院 | A kind of fuel assembly spike pulling method under water |
| CN205984303U (en) * | 2016-07-27 | 2017-02-22 | 常州格林电力机械制造有限公司 | Upper tube base adapter device of bracket is restoreed to nuclear fuel subassembly |
| CN106935296A (en) * | 2017-03-30 | 2017-07-07 | 上海核工程研究设计院 | A kind of PWR nuclear power plant fuel assembly crawl test instrument being horizontally mounted |
-
2017
- 2017-12-27 CN CN201711444110.7A patent/CN109979629A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2722323A1 (en) * | 1994-07-07 | 1996-01-12 | Framatome Sa | Protecting guide tubes in PWR fuel assembly during pin replacement |
| US6320922B1 (en) * | 1999-05-07 | 2001-11-20 | General Electric Company | Tool for retracting fuel rods from and inserting fuel rods into a nuclear fuel assembly and methods therefor |
| FR3007568A1 (en) * | 2013-06-24 | 2014-12-26 | Reel | TOOL FOR HANDLING A COMBUSTIBLE ASSEMBLY AND ITS ACCESSORIES, AND METHOD FOR CENTERING SAID TOOL IN RELATION TO THE COMBUSTIBLE ASSEMBLY |
| CN105023623A (en) * | 2015-06-24 | 2015-11-04 | 中广核核电运营有限公司 | Nuclear fuel assembly repair device and method |
| CN106128530A (en) * | 2016-07-05 | 2016-11-16 | 中国核动力研究设计院 | A kind of fuel assembly spike pulling method under water |
| CN205984303U (en) * | 2016-07-27 | 2017-02-22 | 常州格林电力机械制造有限公司 | Upper tube base adapter device of bracket is restoreed to nuclear fuel subassembly |
| CN106935296A (en) * | 2017-03-30 | 2017-07-07 | 上海核工程研究设计院 | A kind of PWR nuclear power plant fuel assembly crawl test instrument being horizontally mounted |
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