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1. 发明专利

JPH03185398A BOILING WATER NUCLEAR REACTOR 失效
公开(公告)号：JPH03185398A
公开(公告)日：1991-08-13
申请号：JP32392189
申请日：1989-12-15
申请人： TOSHIBA CORP
发明人： KOMITA HIDEO , TAKAHASHI HIDEAKI , YAMAMOTO TETSUZO , SAITO NOBORU , ENDO TAKIO , TOGASAWA YUTAKA , USU MASAJI
IPC分类号： G21C15/02
摘要： PURPOSE:To decrease stress generated by hydraulic force of fluid by making a circumferential edge of a reactor water flowing opening at a lower part of a shroud which is provided surroundingly a reactor core, in a nuclear reactor pressure vessel, coincide with an upper edge of the opening, and by making both curvatures of the circumferential edge and a bottom plate of the nuclear reactor pressure vessel coincide approximately. CONSTITUTION:In a bottom part of a nuclear reactor pressure vessel 1, a current plate 22 of which curvature is made to the same with that of a bottom plate of the nuclear reactor pressure vessel 1, is provided at a periphery of and along the bottom plate. In this case, reactor water discharged from a pump main part 11 of an internal pump, flows into a space between the bottom plate of the nuclear reactor pressure vessel 1 and the current plate 22 through a reactor water flow opening 16, and, from that place, passes through an opening 23 of the current plate 22 to flow into a shroud 2. Accordingly, flow of the reactor water flowing into the shroud 2 becomes approximately parallel to a control rod housing 19 and a stub tube 20, and therewith working moment of hydraulic force of fluid by the flowing-in reactor water and also stress, caused by the hydraulic force of fluid, decreases.

2. 发明专利

JPH03148099A HANDLING DEVICE OF RECIRCULATION PUMP IN NUCLEAR REACTOR INTERNAL PUMP 失效
公开(公告)号：JPH03148099A
公开(公告)日：1991-06-24
申请号：JP28733589
申请日：1989-11-06
申请人： TOSHIBA CORP
发明人： KOGASAWA YUTAKA , KOMIDA HIDEO , USU MASAJI , ENDO TAKIO , YAMAMOTO TETSUZO , TAKAHASHI HIDEAKI , SAITO NOBORU
IPC分类号： G21C15/243
摘要： PURPOSE:To suppress vibration being generated during attaching and detaching work of constituent parts and to intend improvement of safety of periodical inspection works by providing a weight at a lower part of a supporting part and by making gravity center of whole the constituent parts, the supporting part and the weight, correspond to a position of the supporting part. CONSTITUTION:A motor 7 as a constituent part of a recirculation pump in a nuclear reactor (an internal pump) is placed on the upper part of a supporting part 27 and, at the lower part of the supporting part 27, a weight 35 is provided as a part of the supporting part 27. The weight 35 has such weight as the gravity center G of whole the motor 7, the supporting part 27 and the weight 35, may correspond to a position of the gravity center of the supporting part 27. The supporting part 27 climbs up and down a motor case 6 along a screwed bar 23 when the screwed bar 23 is rotated by a motor 25 of a screwed bar driving part. In this situation, the gravity center G of whole the motor 7, the supporting part 27 and the weight 35, corresponds almost to the position of the supporting part 27 and therefore the supporting part 27 climbs up and down very stably and vibration of the motor 7 and the supporting part 27 can be substantially suppressed.

3. 发明专利

JP2006159637A Image eraser 有权
标题翻译：图像擦除
公开(公告)号：JP2006159637A
公开(公告)日：2006-06-22
申请号：JP2004354417
申请日：2004-12-07
申请人： Toshiba Corp , 株式会社東芝
发明人： KISHIMOTO KESAHITO , USU MASAJI , OGURA YASUHIRO
IPC分类号： B41J29/377 , B41J29/26
摘要： PROBLEM TO BE SOLVED: To provide an image eraser which can prevent a generated substance such as an odorous substance when an image is erased by heating a medium on which an image is formed of an erasable image forming material. SOLUTION: The image eraser comprises an image erasure unit 5 having a case 3 capable of stacking and storing a plurality of papers 2 as mediums having an image displayed by an image forming material capable of being erased under a fixed or higher temperature condition and a heater 4 to heat the papers 2 stored in the case 3 to a temperature at which the image is erased, and a deodorization unit 6 to remove odors generated in the image erasure unit 5 during heating. A dust removal filter 19, a photocatalyst reactor 20 to decompose an odor component, an odor component adsorption filter 21, an ozonolysis catalyst 22 as an ozonolysis section and an exhaustion fan 23 are arranged in a ventilation route 18 formed of a ventilation route forming member 15 sequentially from the upstream side of the ventilation route 18. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像擦除器，当图像通过加热由可擦除图像形成材料形成图像的介质而被擦除时，可以防止产生的物质如臭味物质。图像擦除器包括图像擦除单元5，该图像擦除单元5具有能够堆叠并存储多个纸张2作为介质的外壳3，该纸张具有能够在固定或更高温度条件下被擦除的图像形成材料显示的图像以及加热器4，将存储在壳体3中的纸张2加热到图像被擦除的温度;以及除臭单元6，用于去除加热期间在图像擦除单元5中产生的气味。除尘过滤器19，分解气味成分的光催化反应器20，气味成分吸附过滤器21，臭氧分解部的臭氧分解催化剂22和排气风扇23配置在由通气路径形成部件 15.从通风路线18的上游侧开始顺序。15.版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005324417A Device for erasing image forming material and erasing method 审中-公开
标题翻译：用于擦除图像形成材料和擦除方法的装置
公开(公告)号：JP2005324417A
公开(公告)日：2005-11-24
申请号：JP2004143936
申请日：2004-05-13
申请人： Toshiba Corp , 株式会社東芝
发明人： YAMAMOTO KEIICHI , USU MASAJI , KISHIMOTO KESAHITO , ABE HIROAKI
IPC分类号： B41J29/26
摘要： PROBLEM TO BE SOLVED: To provide a device for erasing an image forming material that can prevent a substance such as an odiferous substance or the like from occurring when an image formed by an erasable image forming material is treated to be erased by heating the medium and can carry out the erasing treatment at low cost, and an erasing method.
SOLUTION: This image erasing device erases an image formed by the erasable image forming material by heating a medium having the image formed thereon by using a heating device. The erasing device for the image forming material is equipped with a substance treatment device for decomposing or absorbing a substance created in the erasing treatment.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于擦除图像形成材料的装置，该装置可以防止当由可消除图像形成材料形成的图像被加热而被擦除时，可能发生含臭物质等物质的物质该介质可以低成本进行擦除处理，并可以进行擦除。解决方案：该图像擦除装置通过使用加热装置加热其上形成有图像的介质来擦除由可擦除图像形成材料形成的图像。用于图像形成材料的擦除装置配备有用于分解或吸收在擦除处理中产生的物质的物质处理装置。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JPH01155297A HANDLING DEVICE OF INTERNAL REACTOR RECIRCULATION PUMP 失效
公开(公告)号：JPH01155297A
公开(公告)日：1989-06-19
申请号：JP31420387
申请日：1987-12-14
申请人： TOSHIBA CORP
发明人： USU MASAJI
IPC分类号： F04B53/00 , G21C15/24
摘要： PURPOSE:To prevent a damage of an inner surface of a stretch tube by a dragging hook, by providing a position detector with which the dragging hook can detects a positioning groove carved on the stretch tube. CONSTITUTION:A handling device of a recirculation pump inserts the device 12 into a casing 4 for an internal reactor recirculation pump and moreover inserts an outer cover 9 into a stretch tube 10. In this situation, an output of a displacement meter 29 stays at a rather lower one because of a narrow distance between a dragging hook 15 and the stretch tube 10. When the displacement meter 29 comes to a position of a dragging groove 14, a distance between the dragging hook 15 and the stretch tube 10 is widened therewith an output of the displacement meter 29 rises. Moreover, when the displacement meter 29 detects a position of the positioning groove 28, the output of the displacement meter 29 rises further more. In this way, whether the dragging hook 15 and the dragging groove 14 is correctly positioned or not can be easily confirmed therewith a damage of an inner side of the stretch tube by the dragging hook 15 can be prevented.

6. 发明专利

JPS6281599A SECONDARY SEALING MECHANISM OF RECIRCULATING PUMP IN NUCLEARREACTOR 失效
公开(公告)号：JPS6281599A
公开(公告)日：1987-04-15
申请号：JP22176485
申请日：1985-10-07
申请人： TOSHIBA CORP
发明人： USU MASAJI
IPC分类号： G21C15/243 , G21C15/24

7. 发明专利

JPH04181200A MAIN STEAM FLOW METER FOR NUCLEAR REACTOR 失效
公开(公告)号：JPH04181200A
公开(公告)日：1992-06-29
申请号：JP30702190
申请日：1990-11-15
申请人： TOSHIBA CORP
发明人： YAMAMOTO TETSUZO , NARABAYASHI SUNAO , UEHARA AKIO , YOSHINO KOICHI , KOMITA HIDEO , USU MASAJI , TOGASAWA YUTAKA , SAITO NOBORU , TAKAHASHI HIDEAKI , ENDO TAKIO
IPC分类号： G21C17/032 , G21D1/00
摘要： PURPOSE:To enable diminution of losing amount of coolant, and to intend compact sizing of a containment vessel and a nuclear reactor building, and improvement of safety by making a main steam line nozzle of nuclear reactor pressure vessel to be a contraction part thereof. CONSTITUTION:Steam generated in a reactor core 21 of nuclear reactor pressure vessel 2 which is contained in a nuclear reactor containment vessel 1, is fed to a steam turbine through a main steam pipe 2. By making a shape of main steam line nozzle 43 of this main steam pipe 3 to be of a shape corresponding to a contraction part 41 of a venturi flow meter 8 and a throat part 42, and a main steam flow meter element 4 is constituted of the nozzle, to which a diffuser pipe 44 is directly connected. By the element 4 utilizing this nozzle 43, volume of the vessel 1 is reduced and an amount of discharging steam during a rupture accident of the main steam pipe 3, is substantially reduced and thereby further volume reduction of the vessel 1 and improvement of safety can be well intended.

8. 发明专利

JPH01307695A INTERNAL PUMP 失效
公开(公告)号：JPH01307695A
公开(公告)日：1989-12-12
申请号：JP13842188
申请日：1988-06-07
申请人： TOSHIBA CORP
发明人： USU MASAJI
IPC分类号： G21C15/243 , F04D7/08 , G21C15/24
摘要： PURPOSE:To prevent the infiltration of activated clads by providing primary sealing devices forming slight gaps with the inner peripheral face of a sleeve near the top end of a pump shaft. CONSTITUTION:The sealing device 25 in the circumferential direction forming the slight gap 24 by reacting with the top end face of the sleeve 14 is also provided to the rear surface of an impeller 12 exiting at the outflow point of purging water in a reactor pressure vessel 1. Further, the sealing device 27 forming the slight gap 26 with the tapered surface of the inside peripheral face at the top end of the sleeve 14 is also provided to the top end of the pump shaft 6. Three pieces of the slight gaps 23, 26, 24 exist in the flow passage of the purging water with such internal pump and, therefore, the flow rates of the purging water in the respective gaps increase and the infiltration of the clads near the top end of the pump shaft 6, i.e., the position furthest from a motor section 4 is prevented.

9. 发明专利

JPH05188175A HANDLING APPARATUS FOR INTERNAL PUMP 失效
公开(公告)号：JPH05188175A
公开(公告)日：1993-07-30
申请号：JP355892
申请日：1992-01-13
申请人： TOSHIBA CORP
发明人： USU MASAJI
IPC分类号： F04D7/08 , G21C15/243 , G21C19/02
摘要： PURPOSE:To improve workability and safety when an internal pump is operated by providing a temporary folding-type mounting stage on the side part of a working table, and providing a handling truck, on which a lift mechanism is provided, on the temporary mounting stage so that the truck can be freely moved. CONSTITUTION:A driving device 36 is operated, and a temporary mounting stage 20, which is extending to a working table 18, is raised. Thus, a stable working scaffold is secured beneath a pump casing 10 of an internal pump. The jig of a guide suitable for an auxiliary cover 16 is screwed into a screw hole on the turntable 25 at the upper part of a lift mechanism 26 of a handling truck 24. With the jig as a guide, the auxiliary cover 16 is mounted. Then, the truck 24 is moved on rails 24 and aligned with the position of a motor cover 12. A control device 28 is operated for lifting, and pressure oil is sent into a hydraulic jack 40 from a hydraulic unit 27. Then, the jack 40 lifts up the auxiliary cover 16. When the center of the auxiliary cover 16 does not agree with the center of the motor cover 12, the truck 24 is moved, or the table 25 is turned. After the attachment of the auxiliary cover 16 is finished, the mechanism 26 is lowered 28.

10. 发明专利

JPH03158791A INTERNAL PUMP 失效
公开(公告)号：JPH03158791A
公开(公告)日：1991-07-08
申请号：JP29743289
申请日：1989-11-17
申请人： TOSHIBA CORP
发明人： USU MASAJI , OMIDA HIDEO , TOGASAWA YUTAKA , SAITO NOBORU , TAKAHASHI HIDEAKI , YAMAMOTO TETSUZO , ENDO TAKIO
IPC分类号： G21C15/243 , F04D7/08
摘要： PURPOSE:To decrease components which has possibility of becoming loose and to shorten the attachment and detachment time by fitting a diffuser directly to a boss part in a nuclear reactor pressure vessel without using any stretch tube. CONSTITUTION:Plural boss parts 2 penetrate the bottom part of the nuclear reactor pressure vessel 1 at equal intervals in the circumferential direction. The casing 5 of the motor part 4 of the internal pump 3 is fixed to each boss part 2. The lower end outside of the sleeve 14 of the pump 3 and the upper end outside of the boss part 2 of the vessel 1 have cuts 23 and 24 as welding margins over the entire circumference and those parts are welded 25 to fit the diffuser directly to the vessel 1. Consequently, no stretch tube is used for the fixation of the diffuser, so any dedicated jig, etc., is not required to reduce the possibility of loose parts, thereby shortening the attachment and detachment time.

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