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1. 发明专利

JPS5485557A APPARATUS FOR CLEANING NUCLEAR FUEL ROD 失效
公开(公告)号：JPS5485557A
公开(公告)日：1979-07-07
申请号：JP15326477
申请日：1977-12-20
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KOO MINORU , NAKAGAWA TAKAO , SAKUMA TOYOO
IPC分类号： G21F9/28 , B08B1/04 , G21C19/30 , G21F9/00
摘要： PURPOSE:To provide an apparatus capable of cleaning a plurality of nuclear fuel rods efficiently and uniformly in one process, by inserting the fuel rods into respective holes formed in a box-like container and turning brush sleeves, each having a brush disposed in the manner surrounding respective fuel rods. CONSTITUTION:A plurality of nuclear fuel rods 14 are inserted into respective holes 15 formed in a box-like container 1, by raising or lowering the same by means of suspending machine. When underwater motor 17 is driven simultaneously, brush sleeves 12 formed integrally with gears 18, 19 of the motor 17 are also rotated. Brush 13 fixed to the brush sleeve 12 is disposed in the manner surrounding the outer circumference of respective fuel rods 14 and separates and clears foreign matters such as fur attached to the outer surface of these fuel rods 14. Subsequently, cleaning liquid is agitated by agitator blades 12b of brush sleeves 12 and carried to a thru-hole 6 in the manner enclosing suspended fur in the space defined by helical rotor blade 5 provided on the inner surface of container 1. Then, cleaning liquid is discharged to the outside from drain hole 7.

2. 发明专利

JPS5455287A ASSEMBLY TOOL FOR FUEL ASSEMBLY 失效
公开(公告)号：JPS5455287A
公开(公告)日：1979-05-02
申请号：JP12179677
申请日：1977-10-11
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KOO MINORU , NAKAGAWA TAKAO , SAKUMA TOYOO
IPC分类号： B25B23/00 , G21C3/32 , G21C19/33 , G21C21/00
摘要： PURPOSE:To prevent the falling off of a nut, to enable a scale etc. to be read from anywhere, and to be easily usable, by means of uniting a measuring tool and a taken-off tool as one tool. CONSTITUTION:Finger parts 1, 1 of a locking tub wahser 2 are opened by pushing, and a base pipe 23 is regulated at zero level and an ejector 27 is set free on the upper position. When a wrench 22 is pushed to the down direction by means of being covered on a nut 3, the upper end of an upper end plug 4 for uniting pushes up a scale bar 30, thereby the interval of the upper surface of the locking tub washer and up to the upper end of the end plug 4 can be read by the upper end of the base pipe 23. When the nut 3 is loosed by means of rotating a main body 21 to the anti-clook direction, the nut 3 is taken out from the end plug 4 and is holded at the inner part of the wrench 22, because the top end 26a of a leaf spring is projected by means of being opened by pushing. At the time of assembly, the main body is screwed in the end plug 4 by means of raising up the ejector, and of rotating the main body 21 to the clock direction by allowing the nut to be catched within the wrench 22.

3. 发明专利

JPS5334090A FUR SCRAPINGGOFF DEVICE 失效
公开(公告)号：JPS5334090A
公开(公告)日：1978-03-30
申请号：JP10726076
申请日：1976-09-09
申请人： TOKYO SHIBAURA ELECTRIC CO , NIPPON ATOMIC IND GROUP CO
发明人： KOO MINORU , NAKAGAWA TAKAO , SAKUMA TOYOO , YONEMURA EIZOU
IPC分类号： G21F9/28 , B08B1/04 , G21C19/00 , G21F9/00
摘要： PURPOSE:To scrape off fur efficiently attached on a fuel rod by rotating brushes, and further to improve working effectiveness by gathering the for inside the fur scarping-off device, which brings about non-necessity to use a long hose.

4. 发明专利

JPS5540914A METHOD AND DEVICE OF EXCHANGING LOWER TIEEPLATE 失效
公开(公告)号：JPS5540914A
公开(公告)日：1980-03-22
申请号：JP11341678
申请日：1978-09-14
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： NAKAGAWA TAKAO , KOO MINORU , YAMADA NOBUO , SAKUMA TOYOO
IPC分类号： G21C19/33 , G21C19/20

5. 发明专利

JPS5460686A CHANNEL GRASPING DEVICE FOR STORAGE POOL WATER SCALE REMOVING OF REACTOR FUEL 失效
公开(公告)号：JPS5460686A
公开(公告)日：1979-05-16
申请号：JP12735777
申请日：1977-10-24
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KOO MINORU , NAKAGAWA TAKAO , SAKUMA TOYOO
IPC分类号： F16B21/04 , G21C17/00 , G21C19/02 , G21C19/33 , G21F7/06
摘要： PURPOSE:To enable the channel for removing water scale to be grasped and to improve the operating property and durability in a channel grasping device for water scale removing of a storage pool of a reactor fuel, by means of utilising an axis arm capable of rotation freely. CONSTITUTION:A channel 33 for removing water scale is provided with a handling part 34 with grooves 35, 36 and a nozzle 37. A grasping device which grasps a channel 33 is composed of an axis arm 22 which the inner part of a pipe-shaped main body 21 is slideably and rotably penetrated freely, guides 24, 24 and a stopper arm 26 which is set up on the top of the axis arm 22. The grasping device is transfered up to the upper part of a containing position of the channel 33 by means of transfering by hanging up a hook 23 to a crane. It is contacted to the upper part of the channel 33 by means of lowering the stopper arm 26 by an operating handle 25. The stopper arm 26 is allowed to be engaged into the channel 35 by means of allowing the handle 25 to be rotated. The stopper arm 26 is raised by a spring 27, and is inserted into the groove 36.

6. 发明专利

JPS5435600A FUEL ROD WITHDRAWING DEVICE 失效
公开(公告)号：JPS5435600A
公开(公告)日：1979-03-15
申请号：JP10195477
申请日：1977-08-25
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： SAKUMA TOYOO , KOO MINORU , NAKAGAWA TAKAO
IPC分类号： G21C19/33 , G21C19/32
摘要： PURPOSE:To prevent the failure of screw part of a control rod, by means of recognizing the position of a fuel rod by a seaching arm within an outer cylindrical body having an indication, and of enabling the screw part of a middle cylinder body of a sliding part existing between the outer cylinder and the seaching arm to be screwed at the screw part of the top of the control rod.

7. 发明专利

JPS6035638B2 失效
公开(公告)号：JPS6035638B2
公开(公告)日：1985-08-15
申请号：JP1216277
申请日：1977-02-08
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： NAKAGAWA TAKAO , HANAWA MINORU , SAKUMA TOYOO
IPC分类号： G21C3/00 , B66C1/62 , G21C3/32 , G21C19/00 , G21C19/10 , G21C19/365 , G21C19/375

8. 发明专利

JPS5925478B2 JPS5925478B2 - 失效
公开(公告)号：JPS5925478B2
公开(公告)日：1984-06-18
申请号：JP12735777
申请日：1977-10-24
申请人： Tokyo Shibaura Electric Co
发明人： HANAWA MINORU , NAKAGAWA TAKAO , SAKUMA TOYOO
IPC分类号： F16B21/04 , G21C17/00 , G21C19/02 , G21C19/33 , G21F7/06

9. 发明专利

JPS58147690A RADIATION SHIELDING DEVICE 失效
公开(公告)号：JPS58147690A
公开(公告)日：1983-09-02
申请号：JP3020982
申请日：1982-02-26
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： SAKUMA TOYOO
IPC分类号： G21C11/02 , G21C19/02 , G21C19/18 , G21F3/00

10. 发明专利

JPS5485556A APPARATUS FOR REMOVING FUR FROM NUCLEAR FUEL RODS 失效
公开(公告)号：JPS5485556A
公开(公告)日：1979-07-07
申请号：JP15326377
申请日：1977-12-20
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： KOO MINORU , NAKAGAWA TAKAO , SAKUMA TOYOO
IPC分类号： G21F9/28 , B08B1/04 , G21C19/30 , G21D1/00 , G21F9/00
摘要： PURPOSE:To provide an apparatus capable of removing fur attached to the surface of nuclear fuel rods positively without causing uneven wear of fuel rods, by inserting a fuel rod into a hole formed in a box-like container and rotating a plurality of vertical and horizontal, rotatable brushes which are disposed in the manner surrounding the fuel rod. CONSTITUTION:Holes 3a, 3b are formed respectively at the central portion of upper and lower end plates 1a, 1b of box-like container 1, and a plurality of rotor blades 4 are arranged on the inner peripheral surface of the container 1. Further, a plurality of rotatable vertical brushes 9 are pivotally supported on the lower support plate 8 of container 1, in the manner surrounding nuclear fuel rod 2, and similarly, a plurality of rotable horizontal brushes 12 are also pivotally supported just downwards of the vertical brushes 9. When fuel rod 2 is inserted into hole 3 of container 1 and rotation of drive gear 7 is started, external gear 6a, internal gear 6b and gear 10 are turned successively. Vertical brushes 9 are rotated by the gear 10 and remove fur attached on the outer surface of fuel rod 2 along the length thereof, whereas horizontal cleaning of the fuel rod 2 is achieved by the horizontal brushes 12.

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