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1. 发明专利

JPS5845597A DEVICE FOR MANAGING ENTRANCE AND EXIT OF ROOM 失效
公开(公告)号：JPS5845597A
公开(公告)日：1983-03-16
申请号：JP14389781
申请日：1981-09-14
申请人： HITACHI LTD
发明人： FUJII MASAAKI , KUDOU MASASHI , KITAGUCHI HIROSHI , KONDOU MASAHIRO , KOMORI ITARU
IPC分类号： G01T1/00 , E05F15/20 , G01T7/00 , G08B21/00 , G08B21/22 , G21C17/00

2. 发明专利

JPS5644898A RADIOACTIVE LIQUID WASTE PROCESSING METHOD 失效
公开(公告)号：JPS5644898A
公开(公告)日：1981-04-24
申请号：JP12076779
申请日：1979-09-21
申请人： HITACHI LTD
发明人： KUDOU MASASHI , ASAKURA YAMATO
IPC分类号： G21F9/12 , G21F9/00

3. 发明专利

JPS5810670A PROCESSING DEVICE FOR RADIOACTIVE SAMPLE WATER 失效
公开(公告)号：JPS5810670A
公开(公告)日：1983-01-21
申请号：JP10827281
申请日：1981-07-13
申请人： HITACHI LTD
发明人： KITAGUCHI HIROSHI , KUDOU MASASHI
IPC分类号： G01T1/167 , G01N1/10 , G01T7/02 , G21F9/04
摘要： PURPOSE:To completely prevent the pollution inside a piping and enable easy follow-up of a transitional change of the density of sample water, by making a sample water radioactivity level monitor pass the sample water contactlessly with the inner wall of the piping of the measuring element of the monitor. CONSTITUTION:A radioactivity level monitor, which is prevented from radioactivity pollution, is provided. This level monitor is designed to pass sample water from a valve 2 to a piping 20 of a measuring element, contactlessly therewith. Moreover, a gas is injected from a piping 21 so as to prevent the sample water from stagnating in the restricting part of the piping 20. In addition, radioactive rays emitted from the sample water are detected by a detector 23 enclosed by a shielding body 22. When the sample water passes through a level monitor 30 of contactless watering type, for instance, the output signal of a level monitor 4 is transmittted to a processing device controlling unit 5 and a command to sample the sampling water in accordance with the change in density of the radioactivity of the water is issued therefrom.

4. 发明专利

JPS5586508A FILTERING APPARATUS 失效
公开(公告)号：JPS5586508A
公开(公告)日：1980-06-30
申请号：JP16219078
申请日：1978-12-25
申请人： HITACHI LTD
发明人： KUDOU MASASHI , KAMIYA KUNIO
IPC分类号： B01D29/33 , B01D61/14 , B01D63/06 , B01D65/08
摘要： PURPOSE:To reduce the system capacity of apparatus and the dose irradiated with radiation by providing a member, decreasing the sectional area of flow passage of treated water, in parallel with a tube axis within a porous filter. CONSTITUTION:In a waste liquid treating apparatus of an atomic power plant, a nuclear fuel reprocessing in stitution, etc., a rod 6 mode of SUS having uniform diameter is inserted in the direction of axis into the porous tube filter 4 of a filter main body in such a manner that the rod is not contacted directly with the filter 4. Since circulating water containing suspended clads and flowing into the porous tube filter 4 at constant velocity is passed through the filter having the decreased sectional area, flow velocity is speeded up and flow rate is reduced. The clad removing rate is enhanced by the increased flow velocity. As a residence amount of water within the filter is reduced in proportion to the sectional area of flow passage, the dose irradiated with radiation can greatly be reduced.

5. 发明专利

JPS5729980A Drainage monitor equipment 失效
标题翻译：排水监测设备
公开(公告)号：JPS5729980A
公开(公告)日：1982-02-18
申请号：JP10360880
申请日：1980-07-30
申请人： Chubu Electric Power Co Inc , Chugoku Electric Power Co Ltd:The , Hitachi Ltd , Tohoku Electric Power Co Inc , Tokyo Electric Power Co Inc:The
发明人： YAMADA KAZUO , ISHIZUKA AKIRA , ABE EISUKE , INOUE YASUHIKO , KITAGUCHI HIROSHI , IDEUMI SHIGERU , KUDOU MASASHI
IPC分类号： G01T1/167 , G01T7/02 , G21F9/04
CPC分类号： G01T7/02
摘要： PURPOSE:To execute the instrumentation with high accuracy extending over a wide flow quantity range, by making drainage pass through inside of a conduit pipe by means of noncontact, providing plural watercourses consisting of plural water pouring nozzles which are decided by the flow quantity of drainage, changing them over in accordance with magnitude of the flow quantity of drainage, and making water pass through. CONSTITUTION:Drainage which is poured from a water pouring nozzle is made to pass through a drain-pipe 20 by means of noncontact. On the outside of the drain- pipe 20 is provided a radiant ray detector 15 surrounded by a shielding body 14, and a detection output of the detector 15 is sent to a counter 16 and is measured. In addition to a well-known constitution, valves 5, 6, rectifying pipes 7, 8 and water pouring nozzles 9, 10 are provided. As for these two systems, one system consisting of the valve 5, rectifying pipe 7 and water pouring nozzle 9 is used for a small flow quantity, on the other hand, the system consisting of the valve 6, rectifying pipe 8 and water pouring nozzle 10 is used for a large flow quantity, and they are selected and used depending on whether the flow quantity of drainage is large or small.
摘要翻译：目的：通过在很宽的流量范围内执行高精度的仪器仪表，通过非接触式排水通过管道内部，提供由排水流量决定的多个浇水嘴组成的多个水道根据排水流量的大小改变，使水通过。构成：通过非接触式通过排水管20从排水口排出的排水。在排水管20的外侧设置有由屏蔽体14包围的辐射线检测器15，并且将检测器15的检测输出发送到计数器16并进行测量。除了众所周知的结构之外，还设置有阀5,6，整流管7,8和注水嘴9,10。对于这两个系统，由阀5，整流管7和注水嘴9组成的一个系统用于小流量，另一方面，由阀6，整流管8和排水嘴 10用于大流量，并且根据排水的流量是大还是小而选择和使用。

6. 发明专利

JPS56111010A FILTER DEVICE AND ITS PRODUCTION 失效
公开(公告)号：JPS56111010A
公开(公告)日：1981-09-02
申请号：JP1271680
申请日：1980-02-04
申请人： HITACHI LTD
发明人： KUDOU MASASHI , ASAKURA YAMATO , KAWAMURA FUMIO
IPC分类号： B01D29/17 , B01D29/25 , B01D29/37 , B01D37/02 , G21F9/00 , G21F9/04 , G21F9/06
摘要： PURPOSE:To maintain the intial filter performance of a tubular porous filter body and reduce radiation exposure does by forming a cake layer in said filter body. CONSTITUTION:In treatment for waste water, etc. contg. radioactive finerly divided particles, the cake layer forming liquid which is stored in a circulating water tank 32 and in which cake layer forming materials, for example, filter aids, etc. of 20- 30mum average sizes are suspended, is passed and circulated into a tubular sintered metal filter body 5 of 10mum average pore size. The supply of this liquid is accomplished at high velocities of flow of about 7-14m/s, and as a result, an about 10 - 10 mum thick cake layer 40 is uniformly formed and stuck on the inside of said body 5. This cake layer 40 does not desorb despite the stopping of the water supply and circulating into the body 5, but if a highly pressurized gas of about >=4kg/cm is supplied to backwash the same, it readily desorbs. The desored cake layer forming materials are slight and will not produce a large amount of secondary waste.

7. 发明专利

JPS542177A RADIOACTIVITY CONCENTRATION SUPERVISING APPARATUS 失效
公开(公告)号：JPS542177A
公开(公告)日：1979-01-09
申请号：JP6669477
申请日：1977-06-08
申请人： HITACHI LTD
发明人： KITAGUCHI HIROSHI , KUDOU MASASHI
IPC分类号： G01T1/167 , B21B37/38
摘要： PURPOSE:To improve the concentration supervising accuracy by providing a rigister of wire screen of fine mesh on a radiation water nozzle part, preventing the propagation of pulsation of water pump, and at the same time lowering the discharge pressure.

8. 发明专利

JPS5337484A MONITOR FOR RADIANT RAYS 失效
公开(公告)号：JPS5337484A
公开(公告)日：1978-04-06
申请号：JP11186776
申请日：1976-09-20
申请人： HITACHI LTD
发明人： OOGUSHI AKIRA , KUDOU MASASHI , KITAGUCHI HIROSHI
IPC分类号： B08B3/12 , G01T1/167 , G21C17/02
摘要： PURPOSE:To wash the inside of pipe arrangement, arranging the ultrasonic wave oscillation element outside of pipe arrangement of radiant rays monitor.

9. 发明专利

JPS57120876A Device for monitoring concentration of radioactivity 失效
标题翻译：监测放射性浓度的装置
公开(公告)号：JPS57120876A
公开(公告)日：1982-07-28
申请号：JP630381
申请日：1981-01-21
申请人： Hitachi Ltd
发明人： KUDOU MASASHI , FUJII MASAAKI , KITAGUCHI HIROSHI , URATA MEGUMI
IPC分类号： G01T1/167 , G01T7/02
CPC分类号： G01T7/02
摘要： PURPOSE:To obtain a monitoring device for concn. of radioactivity which does not cause radioactivity contamination due to splashes by providing a cover which is a means of protecting the detecting surface of a radioactivity detector against the splashes of flowing water while the flowing water is unstable. CONSTITUTION:In an initial stage when waste water 100 contg. radioactive materials is supplied from a waste water supply system, the shape of flowing water 101 released through a releasing nozzle 8 is unstable, and the detecting surface 15' of a radioactivity detector 15 is vulnerable to radioactivity contamination by splashes. Therefore, the detector 15 is beforehand moved in a home position where it goes apart from the inspecting position until the water 101 stabilizes. At the point of the time when the flowing water stabilizes, a cylinder 18 is operated to bring the detector 15 close to the water 101 and to set it in the inspecting position by means of a piston rod 19 and a pallet 20. Thence, the detector 15 is operated to detect the concn. of radioactivity of the waste water 100 and the signal thereof is put into a signal processing circuit 16, by which it is subjected to data processing; thereafter, it is recorded in a recorder 17. Thereby, the contamination of the detector 15 is prevented.
摘要翻译：目的：获取一个监控设备的放射性，其不会通过提供一种保护放射性检测器的检测表面而防止流水不流动的手段来防止溅射引起的放射性污染。构成：在废水100的初始阶段从废水供给系统供给放射性物质，由释放喷嘴8释放的流水101的形状不稳定，放射性检测器15的检测面15'容易受飞溅物的放射性污染。因此，检测器15预先在离开检查位置的初始位置移动，直到水101稳定。在流水稳定的时刻，操作气缸18使检测器15靠近水101，并通过活塞杆19和托盘20将其设置在检查位置。因此，检测器15被操作以检测该浓度。将废水100的放射性及其信号放入信号处理电路16中进行数据处理; 此后，将其记录在记录器17中。从而防止了检测器15的污染。

10. 发明专利

JPS5746177A High sensitivity drainage monitor 失效
标题翻译：高灵敏度排水监测仪
公开(公告)号：JPS5746177A
公开(公告)日：1982-03-16
申请号：JP12238880
申请日：1980-09-05
申请人： Hitachi Ltd
发明人： KITAGUCHI HIROSHI , FUJII MASAAKI , KUDOU MASASHI
IPC分类号： G01T1/167 , G01T7/02 , G21C17/02
CPC分类号： G01T7/02
摘要： PURPOSE:To increase radiation sensing sensitivity in the case radioactivity of drainage from a nuclear power station and the like is monitored, by arranging a plurality of a radiation sensors in a plurality of stages around a drain pipe of a radiation measuring part. CONSTITUTION:The radioactive drainage flows through a baffle body 2 and a discharge nozzle 3 from the direction of an arrow 1. The water does not contact with the inner wall of a pipe 4 at the radiation measuring part when it flows. The radioactivity of the drainage 11 is measured by the radiation sensors 31 enclosed by a shielding body 30.The sensors 31 are arranged in a location so that collimators 32 do not face the discharge nozzle 3 where radioactive contamination is expected to exist. Scintillators 35 are arranged in a circular shape on the coaxial circumference of the drainage 11 in the sensors 1. Light screening films 37 are provided for the scintillators 35 in consideration of energy resolution. Photoelectric multiplier tubes 36 are connected to the scintillators 35. In this constitution, the radiation irradiated in the radial direction can be effectively sensed. Furthermore, if the sensors having the same configuration are arranged at the down stream, the sensitivity is further increased.
摘要翻译：目的：通过在放射线测量部分的排水管周围设置多个放射线传感器，通过在核电站等的排水管的放射性的情况下提高放射线感测灵敏度。构成：放射性排泄物从箭头1的方向流过挡板体2和排出喷嘴3.水在流动时不与辐射测量部件处的管道4的内壁接触。排水口11的放射性通过由屏蔽体30包围的辐射传感器31来测量。传感器31布置在准直器32不面对预期存在放射性污染的排放喷嘴3的位置。扫射器35在传感器1中的排水口11的同轴圆周上被布置成圆形。考虑到能量分辨率，为闪烁体35提供了遮光膜37。光电倍增管36连接到闪烁体35.在该结构中，可以有效地感测径向辐射的辐射。此外，如果具有相同结构的传感器布置在下游，则灵敏度进一步增加。

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