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1. 发明专利

JPS6464906A DRUM CAN STORAGE 失效
公开(公告)号：JPS6464906A
公开(公告)日：1989-03-10
申请号：JP21987287
申请日：1987-09-02
申请人： HITACHI LTD , HITACHI KENSETSU SEKKEI KK
发明人： OOME FUMIYOSHI , AKIYAMA KUNIO , TOKUDA TOSHIO , SATO MITSUHIRO
IPC分类号： B65G1/08 , B65G1/14
摘要： PURPOSE:To enhance the efficiency of storage and the workability in a drum can storage relating to a nuclear power plant, by laying rails in a multiple stages so that the rails are slightly inclined in order to allow drum cans horizontally laid to revolve on the rails, and by storing the drum cans on the rails crosswise of the latter. CONSTITUTION:Drum cans 1 introduced by a truck 5 or the like, are horizontally set on a drum can introducing lifter 3. Then the lifter 3 is lowered, and then the drum cans 1 are shifted onto the lowermost guide rail 2, and therefore, the dead weight of the drum cans allows the same to roll on the rail 2 leftward until they are stopped by a movable stopper 7. Thus, the drum cans 1 are stored successively on guide rails 2 in several stages. upon delivery of the drum cans, the inclination of the guide rails 2 is changed over so as to shift the drum cans 1 onto the lifter 3 for delivering the same. Further, the interstage movement of the drum cans is performed by a interstage lifter 6. With this arrangement, it is possible to aim at enhancing the efficiency of storage and the workability.

2. 发明专利

JPS5425400A SLUDGE SEPARATION DEVICE OF SUMP TANK 失效
公开(公告)号：JPS5425400A
公开(公告)日：1979-02-26
申请号：JP8932177
申请日：1977-07-27
申请人： HITACHI LTD
发明人： TOKUDA TOSHIO , TAMURA RIYOUICHI
IPC分类号： B01D35/027 , B01D35/06 , G21F9/00 , G21F9/06 , G21F9/30
摘要： PURPOSE:To provide a sludge separation device of sump tank with discharge of high radioactive metallic sludge with the conveyor attaching magnet enabling the sludge to discharge without access to high radioactive sump tank.

3. 发明专利

JPH01153451A PALETTE FOR USE IN STORING DRUM CANS 失效
公开(公告)号：JPH01153451A
公开(公告)日：1989-06-15
申请号：JP30704087
申请日：1987-12-04
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TOYAMA NORIHIDE , SHIINA ATSUSHI , TOKUDA TOSHIO
IPC分类号： B65D19/44 , G21F9/00 , G21F9/36
摘要： PURPOSE:To efficiently save a storing space of drum cans, by vertically stacking a plurality of drum cans and connecting the same with each other by means of palettes intervening therebetween. CONSTITUTION:A palette P is provided with four circular recesses on both upper and lower surfaces thereof, respectively. Each recess is formed in such a size that the peripheral rim portion of drum cans is appropriately received therein. In each recess, there are disposed a central pushbutton 4 and four connecting plates 2 which serves as connecting means between the palette and can and extend radially from the central pushbutton. The palette is also provided with four bores 3 at its corner edges, through which anchor bolts are inserted and threaded into the floor. When the end of the drum can is placed in the recess, the pushbutton is depressed due to the tare of the can. As a result, while a roller 8 of the connecting plate 2 rides over the sloped side wall of the pushbutton, the connecting plates are displaced inwardly to the pushbutton because they are biased toward the center of the recess by means of the spring 7. At this time, a hook 9 formed at the opposite end of the connecting plate is engaged with the rim portion of the drum can to thereby establish a secure connection between the palette P and the drum can D. Since the lowermost palette is anchored to the floor by bolts 10 inserted through the bores 3, a plurality of the drum cans stacked by intervention of palettes are, as a whole, securely fixed on the floor.

4. 发明专利

JPS5756010A Strainer 失效
标题翻译：过滤器
公开(公告)号：JPS5756010A
公开(公告)日：1982-04-03
申请号：JP13165680
申请日：1980-09-24
申请人： Hitachi Ltd
发明人： TOKUDA TOSHIO , AKITA JIYUNJI
IPC分类号： B01D35/02
摘要： PURPOSE: To shorten a disassembling space, by providing a flange in the middle of a construction body adjustable of fitting position of an exit nozzle.
CONSTITUTION: Flange joints (flange 14 of an underside shell, a flange 16 of an upperside shell or an exit nozzle 19) are provided at an outer shell (underside shell 2 or upperside shell 4) of a strainer 8 so as to take off the strainer 8 simultaneously with the shell 4. When disassembling the strainer 8; bolts for the exit nozzle flange 19 and the flange 14 of the underside shell are removed to take off the strainer 8 together with the shell 4 simultaneously by using a hanger 13.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了缩短拆卸空间，可以在结构体的中间设置一个可调节出口喷嘴安装位置的法兰。构成：在过滤器8的外壳（下侧壳体2或上侧壳体4）处设置法兰接头（下侧壳体的法兰14，上侧壳体的凸缘16或出口喷嘴19），以便脱开过滤器8同时与壳体4同时拆卸过滤器8; 用于出口喷嘴凸缘19和下侧壳体的凸缘14的螺栓被移除，以通过使用悬挂器13同时与壳体4一起脱离过滤器8。

5. 发明专利

JPS53122099A SLUDGE REMOVING METHOD FROM RADIOACTIVE WASTE LIQUID STORING VESSEL 失效
公开(公告)号：JPS53122099A
公开(公告)日：1978-10-25
申请号：JP3527377
申请日：1977-03-31
申请人： HITACHI LTD
发明人： TOKUDA TOSHIO
IPC分类号： G21F9/04 , G21F9/22 , G21F9/30
摘要： PURPOSE:To prevent the increasing of radioactive concentration in the inner part of the vessel, by means of taking out a sucking up vessel from the storing vessel when sludge is accumulated to a predetermined quantity in the sucking up vessel which is inserted within the storing vessel of a radioactive waste liquid.

6. 发明专利

JPS58160792A CONDENSER 失效
公开(公告)号：JPS58160792A
公开(公告)日：1983-09-24
申请号：JP4262882
申请日：1982-03-19
申请人： HITACHI LTD
发明人： TOKUDA TOSHIO , KAGEYAMA NORIHIRO
IPC分类号： F28B9/00
摘要： PURPOSE:To shorten the work period needed for the construction of a scaffold for the inspection and examination of a bleeding pipe, a feed water heater, etc., and to lower the exposure amount, by constructing support members to be provided in a condenser of nuclear facilities in such a way that the support members cab also be used as a scaffold. CONSTITUTION:A plurality of supporting pipes 2 as the support members are welded to an upper drum 1 of the condenser, a heater 3 is installed in the lower part through supporting members 5, and a piping 4 is united to the heater 3. A plurality of the supporting pipes 2 are constructed in a form of a latticework when viewed from the top, and are also arranged one above another so that a scaffold conforming to the size stipulated in JIS is constructed. Therefore in case when periodic inspection is performed, examination or the like is carried out with respect to the bleeding pipe, the feed water heater, etc., the work for the construction of a scaffold can be omitted or simplified.

7. 发明专利

JPS58104489A CONDENSER PROVIDED WITH COOLING MECHANISM 失效
公开(公告)号：JPS58104489A
公开(公告)日：1983-06-21
申请号：JP20164981
申请日：1981-12-16
申请人： HITACHI LTD
发明人： TOKUDA TOSHIO
IPC分类号： F28B1/06 , F28B1/00 , F28B9/00
摘要： PURPOSE:To make it possible to minimize the period of entrance in the condenser and the degree of radioactive contamination by a method wherein the condenser used in an atomic power plant, a water passage is formed by support members within the condenser and means for supplying cooling water or air through the water passage is provided. CONSTITUTION:A number of support pipes 2 are welded to the inside of the upper trunk 1 of the condenser and a heater 3, a pipe 4 and the support member 5 are arranged within the upper trunk 1. The support pipes 2 are fabricated by using pipe joints to thereby provide the fluid passage extending vertically and horizontally. In this case, at least one of the pies 2 or preferably all of the pipes 2 are connected to a cooling water or air system 6. With the above structure, in case where an on-the-spot-working is performed in the condenser, the operation of the condenser is stopped and a pump 9 is driven by opening a changeover valve 8 whereupon the support pipes 2 function as cooling pipes so that the temperature in the condenser lowers rapidly. Consequently, the working environment within the condenser can be improved and the working time can be shortened.

8. 发明专利

JPS58216996A Pool gate structure 失效
标题翻译：池盖结构
公开(公告)号：JPS58216996A
公开(公告)日：1983-12-16
申请号：JP9932182
申请日：1982-06-11
申请人： Hitachi Ltd
发明人： TOKUDA TOSHIO , TAKAHASHI TOSHIYORI , KAGEYAMA NORIHIRO
IPC分类号： G21C19/07 , G21C19/32

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