CN1331159C - Cap pneumatic picker of var fuel pot of ball bed high-temperature reactor air cooled - Google Patents
Cap pneumatic picker of var fuel pot of ball bed high-temperature reactor air cooled Download PDFInfo
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- CN1331159C CN1331159C CNB2005100891609A CN200510089160A CN1331159C CN 1331159 C CN1331159 C CN 1331159C CN B2005100891609 A CNB2005100891609 A CN B2005100891609A CN 200510089160 A CN200510089160 A CN 200510089160A CN 1331159 C CN1331159 C CN 1331159C
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- piston
- cylinder
- urceolus
- claw
- piston rod
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- 239000000446 fuel Substances 0.000 title claims description 18
- 210000000078 claw Anatomy 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims description 14
- 239000002915 spent fuel radioactive waste Substances 0.000 abstract description 9
- 230000002285 radioactive effect Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000013022 venting 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
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- Manipulator (AREA)
Abstract
The present invention relates to a pneumatic gripping device for tank stoppers of spent fuel tanks of ball bed high-temperature gas cooled reactors, which belongs to the technical field of reactor engineering and comprises a piston, a fixing piece, a pinch wheel, clamping claws, etc., wherein the piston is arranged in a piston cylinder, and a piston rod is installed on the end part of the piston rod; the upper end of the fixing piece is circular in shape, the fixing piece is relatively fixed with the piston cylinder on the circular part, the lower part of the fixing piece is in the shape of a cross cylinder, and the piston rod installed on the end part of the piston extends into the fixing piece; the clamping claws are symmetrically fixed on the thin end part of the fixing piece in the shape of a cross cylinder through male pins, and a T-shaped passage is formed between the clamping claws; the pinch wheel is installed on the end part of the piston rod and slides up and down along the T-shaped passage. The present invention can control the operation of opening and pressing radioactive tank stoppers from a long distance to prevent operators at short range from being harmed by the radioactivity of gripped devices.
Description
Technical field
The present invention relates to a kind of var fuel pot of ball bed high-temperature reactor air cooled cap pneumatic picker, the extracting, unlatching and the envelope that are used for pebble bed high temperature reactor radioactivity spent fuel storage tank jar plug are pressed, and belong to the reactor engineering technical field.
Background technology
The pebble bed high temperature reactor spent fuel element is stored in the var fuel pot of lead shield, each jar is stored 2000 spent fuel elements approximately, each spent fuel element average burn-up degree of depth is 80000MWD/tU, the radiation dose of spent fuel element is very high in the basin, under the situation that basin jar mouth opens wide, allow personnel approaching anything but.Only be placed into that personnel can be approaching in jar neck, or carry out other operations nearby at the jar plug.For the safety of discharging, the extraction of jar plug and the operation of putting into jar neck must be the far distance automatic controlling operations.Pebble bed high temperature reactor is developed at first by Germany, the experimental reactor successful operation of its construction for many years, the irradiated fuel store of these two heaps is in spent fuel storage tank, because spent fuel storage tank is behind the spentnuclear fuel of packing into, radiation dose is very big near it, do not allow personnel approaching, therefore must adopt the way of Long-distance Control, the open and close of long-distance remote control var fuel pot, Germany has carried out very complicated design for this reason, though realized remote operated function, device structure and operation are all too complicated.
Summary of the invention
The objective of the invention is to propose a kind of var fuel pot of ball bed high-temperature reactor air cooled cap pneumatic picker, the unlatching and the envelope of var fuel pot are pressed, design, to realize that the jar of radioactivity var fuel pot is filled in row control and operation at a distance based on pneumatic principle.
The var fuel pot of ball bed high-temperature reactor air cooled cap pneumatic picker that the present invention proposes comprises piston, piston cylinder, spring, piston rod, fixture, pinch roller and claw; Described piston places in the piston cylinder, and piston rod is installed on pistons end; Described spring housing is on piston rod; The upper end of described fixture is circular, fixture is in circular portion and piston cylinder relative fixed, the bottom of fixture is the cross tubular, the cross barrel of fixture has two relative butt ends thin end relative with two, form an elongated open vertically respectively on two thin ends, two claws are rotatably mounted in two elongated open by pin respectively; On two claw facing surfaces, be respectively equipped with the recess that forms by two inclined-planes, between two claws, form a passage, when pinch roller slides up and down, close, open claw in passage by the upper and lower inclined-plane of pushing claw.
Above-mentioned var fuel pot of ball bed high-temperature reactor air cooled cap pneumatic picker comprises claw control cylinder, two auxilliary cylinders, inner core, urceolus, urceolus sealing nut and goal tubes.Claw control cylinder piston is by the piston cylinder relative fixed in connecting rod and the described grabbing device, and connecting rod and grabbing device are coaxially installed in the described inner core.Urceolus is enclosed within outside the inner core, and urceolus and inner core are and are slidingly matched, and an end of urceolus stretches in the described sealing nut, and the end of sealing nut is with O-ring seal.Two auxilliary cylinders place described claw control cylinder both sides respectively, are fixed on the bracing frame, and the piston rod of auxilliary cylinder is by first web member and second web member and urceolus relative fixed.Goal tube places a side of urceolus.
The var fuel pot of ball bed high-temperature reactor air cooled cap pneumatic picker that the present invention proposes, its advantage are, but long-distance remote control has the unlatching and the envelope press operation of radioactive jar of plug, avoid crawled equipment to damage because of the personnel of radioactivity to closely operation; Adopt ripe pneumatic principle technology, the equipment dependability height; The structural design of master cylinder can guarantee piston in the operating process to neutrality, thereby improve the accurate reliability of operation; The design of auxilliary cylinder and sealing shroud has guaranteed the sealing and the security of equipment.
Description of drawings
Fig. 1 is the structural representation of the var fuel pot of ball bed high-temperature reactor air cooled cap pneumatic picker that proposes of the present invention.
Fig. 2 is the structural representation that is used for fixing the fixture of claw in the grabbing device of the present invention.
Fig. 3 is the M-M cut-open view of Fig. 2.
Fig. 4 is an embodiment of apparatus of the present invention.
Among Fig. 1~Fig. 4, the 1st, piston, the 2nd, piston cylinder, the 3rd, spring, the 4th, piston air inlet/outlet, the 5th, piston rod, the 6th, pin, the 7th, pinch roller, the 8th, claw, the 9th, cover, the 10th, fixture, the 11st, the circular portion of fixture upper end, the 12nd, the thick end of fixture, the 13rd, the thin end of fixture, the 14th, pin hole, the 15th, claw control cylinder, the 16th, auxilliary cylinder, the 17th, auxilliary cylinder piston, the 18th, the piston rod of auxilliary cylinder, the 19th, auxilliary cylinder air inlet/outlet, 20 is first web members, the 21st, back up pad, the 22nd, inner core, 23 is second web members, the 24th, urceolus, the 25th, advance, the gas outlet, the 26th, the goal pipeline, the 27th, sealing nut, the 28th, O-ring seal, the 29th, tanks, the 30th, the connecting rod between claw control cylinder piston and the piston cylinder 2, the 31st, claw control cylinder piston, 32 and 33 is respectively advancing of claw control cylinder, the gas outlet.
Embodiment
The var fuel pot of ball bed high-temperature reactor air cooled cap pneumatic picker that the present invention proposes, its structure comprises piston 1, piston cylinder 2, spring 3, piston rod 5, fixture 10, pinch roller 7 and claw 8 as shown in Figure 1.Piston 1 places in the piston cylinder 2, and piston rod 5 is installed on the end of piston 1.The upper end 11 of fixture 10 is circular, and as shown in Figure 2, fixture 10 is in circular portion 11 and piston cylinder 2 relative fixed, and the bottom of fixture 10 is the cross tubular, its cut-open view as shown in Figure 3, the piston rod 5 that is installed on piston 1 end puts in the fixture.Claw 8 is fixed on by pin 6 symmetries on the thin end 13 of cross tubular fixture, forms a T shape passage between two claws 8.Pinch roller 7 is installed on the end of piston rod 5, and along the upper and lower slip of T shape passage.
An embodiment of var fuel pot of ball bed high-temperature reactor air cooled cap pneumatic picker of the present invention, its structure comprises claw control cylinder 15, two auxilliary cylinders 16, inner core 22, urceolus 24, urceolus sealing nut 27 and goal tubes 26 as shown in Figure 4.The piston 31 of claw control cylinder 15 is by piston cylinder 2 relative fixed in connecting rod 30 and the above-mentioned grabbing device, and connecting rod 30 is coaxially installed in the described inner core 22 with whole grabbing device.Urceolus 24 is enclosed within outside the inner core 22, and urceolus 24 is with inner core 22 and is slidingly matched, and an end of urceolus 24 stretches in the described sealing nut 27, and the end of sealing nut 27 is with O-ring seal 28.Two auxilliary cylinders 16 respectively place the both sides of described claw control cylinder 15, and are fixed on the back up pad 21, and the piston rod of the piston 17 of auxilliary cylinder 16 is by first web member 20 and second web member 23 and urceolus 24 relative fixed.Goal tube 26 places a side of urceolus 24.
Below in conjunction with accompanying drawing, introduce the course of work of apparatus of the present invention in detail:
The at first bottom air inlet of the piston 17 of two auxilliary cylinders 16, the cylinder piston compression spring moves upward, drive and urceolus 24 relatively-stationary first web member 20 and second web members 23 by piston rod 18, and then drive urceolus 24 moves upward with the sealing nut 27 that is fixed on the urceolus end.Fuel element hold-up tank 29 is aimed at this device bottom discharge ports, promptly claw 8 under.The bottom venting of two auxilliary cylinder pistons 17, cylinder piston 17 moves downward under the spring force effect, and sealing nut 27 is moved down, and O-ring seal 28 seals up the neck of hold-up vessel 29 simultaneously, prevents that the live graphite dust is discharged in the surrounding environment when discharging.
Then, the top of claw control cylinder 15 is from air inlet/outlet 32 air inlet (see figure 4)s, and the pressure of the upper cavity of piston 31 increases, and piston 31 moves down, and by connecting rod 30 piston cylinder 2 is moved downward simultaneously.Piston cylinder 2 drives claw 8 and moves downward, and claw 8 is stretched in the jar plug 9 of hold-up vessel 29.
Then, as shown in Figure 1, inlet, outlet 4 exhausts of piston 1 bottom move downward piston 1, and move downward along the T shape track between two claws 8 by piston rod 5 drive pinch rollers 7, two claws 8 are opened in jar plug 9 relatively, thereby catch a jar plug.
At last, the top of claw control cylinder 15 is from air inlet/outlet 33 air inlet (see figure 4)s, and the pressure of the lower cavity of piston 31 increases, and piston 31 is moved up, and by connecting rod 30 piston cylinder 2 is moved upward simultaneously.Piston cylinder 2 drives claw 8 and moves upward, and makes a claw 8 and a jar plug 9 move up to certain position along inner core 22 together, can directly enter hold-up vessel 29 from goal tube 26 up to fuel sphere.
When hold-up vessel 29 is filled ball, carry out reverse operation, promptly the top of claw control cylinder 15 is from air inlet/outlet 32 air inlet (see figure 4)s, and the pressure of the upper cavity of piston 31 increases, and piston 31 moves down, and by connecting rod 30 piston cylinder 2 is moved downward simultaneously.Piston cylinder 2 drives claw 8 and moves downward, and a jar plug 9 is filled in the hold-up vessel 29.Inlet, outlet 4 air inlets of piston 1 bottom move upward piston 1 then, and move upward along the T shape track between two claws 8 by piston rod 5 drive pinch rollers 7, and then two claws 8 are drawn close in jar plug 9 relatively, and claw 8 is thrown off from jar plug 9.
Claims (2)
1, a kind of var fuel pot of ball bed high-temperature reactor air cooled cap pneumatic picker is characterized in that this device comprises piston, piston cylinder, spring, piston rod, fixture, pinch roller and claw; Described piston places in the piston cylinder, and piston rod is installed on pistons end; Described spring housing is on piston rod; The upper end of described fixture is circular, fixture is in circular portion and piston cylinder relative fixed, the bottom of fixture is the cross tubular, the cross barrel of fixture has two relative butt ends thin end relative with two, form an elongated open vertically respectively on two thin ends, two claws are rotatably mounted in two elongated open by pin respectively; On two claw facing surfaces, be respectively equipped with the recess that forms by two inclined-planes, between two claws, form a passage, when pinch roller slides up and down, close, open claw in passage by the upper and lower inclined-plane of pushing claw.
2, grabbing device as claimed in claim 1 is characterized in that also comprising claw control cylinder, two auxilliary cylinders, inner core, urceolus, urceolus sealing nut and goal tubes; Described claw control cylinder piston is by the piston cylinder relative fixed in connecting rod and the described grabbing device, and connecting rod and grabbing device are coaxially installed in the described inner core; Described urceolus is enclosed within outside the inner core, and urceolus and inner core are and are slidingly matched, and an end of urceolus stretches in the described sealing nut, and the end of sealing nut is with O-ring seal; Described two auxilliary cylinders place described claw control cylinder both sides respectively, are fixed on the bracing frame, and the piston rod of auxilliary cylinder is by first web member and second web member and urceolus relative fixed; Described goal tube places a side of urceolus.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2005100891609A CN1331159C (en) | 2005-08-05 | 2005-08-05 | Cap pneumatic picker of var fuel pot of ball bed high-temperature reactor air cooled |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2005100891609A CN1331159C (en) | 2005-08-05 | 2005-08-05 | Cap pneumatic picker of var fuel pot of ball bed high-temperature reactor air cooled |
Publications (2)
Publication Number | Publication Date |
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CN1713306A CN1713306A (en) | 2005-12-28 |
CN1331159C true CN1331159C (en) | 2007-08-08 |
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CNB2005100891609A Active CN1331159C (en) | 2005-08-05 | 2005-08-05 | Cap pneumatic picker of var fuel pot of ball bed high-temperature reactor air cooled |
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Families Citing this family (10)
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CN101740145B (en) * | 2008-11-20 | 2012-08-08 | 中国核电工程有限公司 | New control rod assembly gripping apparatus |
CN101546614B (en) * | 2009-04-21 | 2012-07-04 | 中国原子能科学研究院 | Gripping apparatus for sealed tank with damaged assembly |
CN102568634B (en) * | 2010-12-28 | 2014-11-26 | 韩电Kps株式会社 | Plug removing device for heavy water reactor fuel system |
CN102941484B (en) * | 2012-11-29 | 2015-06-24 | 山东滨州渤海活塞股份有限公司 | Automatic clamping and positioning mechanism and method for processing top surface and excircle of piston |
CN105467425A (en) * | 2014-09-05 | 2016-04-06 | 中国辐射防护研究院 | Radioactive source remote-control pickup device applicable to well-type ionization chamber standard device |
CN106847352B (en) * | 2016-11-28 | 2018-09-28 | 中核核电运行管理有限公司 | A kind of spentnuclear fuel basket crawl loading attachment |
CN107139005B (en) * | 2017-05-19 | 2018-10-26 | 常州轻工职业技术学院 | Lathe grabbing device |
CN107481779A (en) * | 2017-06-29 | 2017-12-15 | 中国原子能科学研究院 | A kind of target piece transfer tool |
CN109961863A (en) * | 2017-12-22 | 2019-07-02 | 中核核电运行管理有限公司 | One kind grabbing replacement tool for long distance positioning under high radioactivity ambient water |
CN109979637B (en) * | 2017-12-27 | 2024-02-09 | 核动力运行研究所 | Connecting handle grabbing head and transferring device for underwater disassembly of spent fuel related assembly |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3945514A (en) * | 1973-02-19 | 1976-03-23 | Fried, Krupp Gesellschaft Mit Beschrankter Haftung | Gripping apparatus of a lifting device, especially in a core reactor for setting down and lifting fuel elements and fuel rods |
CN2042883U (en) * | 1987-11-18 | 1989-08-16 | 沈阳冶金机械专科学校机械厂 | Pneumatic drill-rod pulling-out machine |
US5234244A (en) * | 1991-03-16 | 1993-08-10 | Korea Institute Of Science And Technology (Kist) | Bi-directional feeding gripper device |
CN2146641Y (en) * | 1992-07-30 | 1993-11-17 | 王克龙 | Gun for filling with liquefied petroleum gases |
CN2593242Y (en) * | 2002-12-30 | 2003-12-17 | 天津渤海中鸥表业技术有限公司 | Pneumatic gripping device of clamping parts for making watch |
US20050046212A1 (en) * | 2003-08-29 | 2005-03-03 | Giuseppe Maffeis | Angular pneumatic gripper |
-
2005
- 2005-08-05 CN CNB2005100891609A patent/CN1331159C/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3945514A (en) * | 1973-02-19 | 1976-03-23 | Fried, Krupp Gesellschaft Mit Beschrankter Haftung | Gripping apparatus of a lifting device, especially in a core reactor for setting down and lifting fuel elements and fuel rods |
CN2042883U (en) * | 1987-11-18 | 1989-08-16 | 沈阳冶金机械专科学校机械厂 | Pneumatic drill-rod pulling-out machine |
US5234244A (en) * | 1991-03-16 | 1993-08-10 | Korea Institute Of Science And Technology (Kist) | Bi-directional feeding gripper device |
CN2146641Y (en) * | 1992-07-30 | 1993-11-17 | 王克龙 | Gun for filling with liquefied petroleum gases |
CN2593242Y (en) * | 2002-12-30 | 2003-12-17 | 天津渤海中鸥表业技术有限公司 | Pneumatic gripping device of clamping parts for making watch |
US20050046212A1 (en) * | 2003-08-29 | 2005-03-03 | Giuseppe Maffeis | Angular pneumatic gripper |
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Publication number | Publication date |
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CN1713306A (en) | 2005-12-28 |
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