CN207718837U - 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
- CN207718837U CN207718837U CN201721862170.6U CN201721862170U CN207718837U CN 207718837 U CN207718837 U CN 207718837U CN 201721862170 U CN201721862170 U CN 201721862170U CN 207718837 U CN207718837 U CN 207718837U
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- CN
- China
- Prior art keywords
- tube socket
- attaching
- detaching apparatus
- pipe seat
- fuel component
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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 utility model is related 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 centre position of mounting plate, and when the attaching/detaching apparatus being made to be mounted in upper pipe seat of fuel component, the telescope-srew position in Kong Weiyu upper pipe seat of fuel component on telescope-srew guide plate 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 dowel holes of tube socket upper surface respectively, 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 be removed 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 technology
Fuel assembly is influenced during running use by various factors such as water impact, vibration, irradiation, is existed certain
Breakage rate.If breakage occurs in fuel rod, fission product can be caused to leak, cause primary Ioops radioactive level to increase, influence core
The economy in power station and safety.Therefore, it is necessary to implement to repair to the damaged fuel assembly for being not up to burn-up level, replace broken
The fuel rod of damage ensures 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, ensure upper pipe seat of fuel component peace
It can be realized after full dismounting and it is transported, it is made still to keep under water, after the completion of waiting for component repair later, again by upper tube socket
It installs, the safety of fuel assembly and upper tube socket is should ensure that in whole process, does not allow that equipment is caused to damage or cause upper tube
Seat is inadvertently fallen off.
Invention content
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, when the attaching/detaching apparatus being made to be mounted in upper pipe seat of fuel component, the Kong Weiyu fuel assemblies 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 install by upper tube the expanding structure of positioning pin lower end realizes 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 faces 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 with the square cotter above mounting plate by screw thread, wherein core bar lower end is that taper is oblique
Face structure matches with bulging pawl end, and is rotated using bulging pawl and core bar is driven to move up and down, to support bulging pawl
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 mounting hole position of conforming sleeves screw, can in advance be placed in telescope-srew
On mounting plate.
24 holes position is provided on the telescope-srew guide plate, with 24 telescope-srews in upper pipe seat of fuel component
Position is corresponding, and provides positioning and guiding for the installation of telescope-srew.
The remarkable result of the present invention is：The underwater attaching/detaching apparatus of a kind 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 is oriented to.
Description of the drawings
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 vertical 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 implementation mode
Below in conjunction with the accompanying drawings and specific embodiment invention is further described in detail.
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 centre position of mounting plate 5, two groups of upper tubes
Seat installation 1, two lifting operation bar 2 of positioning pin is respectively symmetrically mounted on the diagonal angle of mounting plate 5, is set on lifting operation bar 2
The groove of lifting operation bar 2 can be clamped in fluted structure by long rod tool, and the placement of entire attaching/detaching apparatus is underwater
In upper pipe seat of fuel component；24 holes position is provided on telescope-srew guide plate 3, with 24 sleeves in upper pipe seat of fuel component
Screw position is corresponding, and provides positioning and guiding for the installation of telescope-srew；24 adaptations are equipped in the side of mounting plate 5 to cover
24 telescope-srews can be mounted on mounting plate 5 by the installation position of cylinder screw in advance；It is also equipped with branch in the lower end of mounting plate 5
Dagger A4 and support column B8, upper tube socket installation positioning pin 1 pass through and in support column B8, the attaching/detaching apparatus are made to be mounted on combustion
When expecting tube socket upper surface on component, upper tube socket installation positioning pin 1 is inserted into two dowel holes of tube socket upper surface respectively, and
The lower face of support column A4 and support column B8 is set to be developed 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 ramp structure of 7 lower end of core bar to be determined
Position pin hole tail end, to make the attaching/detaching apparatus be fixed as one with upper tube socket, and can transport upper tube socket together；Meanwhile from another
One direction rotates square cotter 6, and bulging pawl 9 can be made to retract, the attaching/detaching apparatus is made to be loosened 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)
Centre position, when the attaching/detaching apparatus being made to be mounted in upper pipe seat of fuel component, the Kong Weiyu fuel 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), upper tube socket dowel hole is located in upper tube socket installation positioning pin (1)
When middle, support column A (4) and (8) lower faces support column B are developed with upper tube socket upper surface；The upper tube socket installation 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 with the square cotter (6) above mounting plate (5) by screw thread, 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, realize 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 mounting hole position 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 holes position is 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 is oriented to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721862170.6U CN207718837U (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 |
|---|---|---|---|
| CN201721862170.6U CN207718837U (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 |
|---|---|
| CN207718837U true CN207718837U (en) | 2018-08-10 |
Family
ID=63050537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721862170.6U Active CN207718837U (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) | CN207718837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926562A (en) * | 2019-12-16 | 2020-03-27 | 西安交通大学 | Top end positioning piece suitable for flow measurement of rod bundle sub-channel outlet |
-
2017
- 2017-12-27 CN CN201721862170.6U patent/CN207718837U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926562A (en) * | 2019-12-16 | 2020-03-27 | 西安交通大学 | Top end positioning piece suitable for flow measurement of rod bundle sub-channel outlet |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |