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61. 发明专利

JPS6352042A FLUORESCENT ANALYSIS INSTRUMENT AND OPERATING METHOD THEREOF 失效
公开(公告)号：JPS6352042A
公开(公告)日：1988-03-05
申请号：JP19542086
申请日：1986-08-22
申请人： HITACHI LTD
发明人： FUJIMORI HARUO , MATSUI TETSUYA
IPC分类号： G01N21/64
摘要： PURPOSE:To enable analysis with high sensitivity and high accuracy by providing a diluting liquid supply system for supplying a diluting liquid to an analyzing cell part to dilute a liquid sample, then projecting excitation light to the sample and making fluorescent analysis. CONSTITUTION:A specified volume of the process soln. sampled from a sampling piping 17 is taken in by a sampler 20 and is mixed with a prescribed volume of the diluting water introduced from a diluting water supply device 21. The liquid mixture is fed to a quartz cell part 11. The diluted sample 10 is projected with the excitation light 12 is from the laser through the optical transmission fiber 6. The fluorescence 14 generated from the sample is spectrally split and detected through the photodetecting fiber 7 and the concn. of the analysis material is determined. The higher sensitivity and higher accuracy are attainable on the contrary by dilution of the sample in such a case of the analysis of the uranium in a reprocessed soln. of nuclear fuel which contains co-existing materials at a high ratio and which, consequently, causes the absorption and attenuation of the excitation light and fluorescence by the decreased transparency of the sample or a decrease in fluorescence yield by the extinction effect of the co-existing materials.

62. 发明专利

JPS62242841A FLUOROMETRIC ANALYSIS INSTRUMENT 失效
公开(公告)号：JPS62242841A
公开(公告)日：1987-10-23
申请号：JP8595986
申请日：1986-04-16
申请人： HITACHI LTD
发明人： FUJIMORI HARUO , MATSUI TETSUYA
IPC分类号： G01N21/64
摘要： PURPOSE:To permit analysis with high accuracy by measuring the absorption spectrum of a sample liquid by using the fluorescence to be generated by optical excitation of a high-concn. liquid as a light source. CONSTITUTION:Excited high 9 irradiated from a laser is changed in optical path by an excited-light branching mirror 2 to irradiate a standard liquid 10 contained in a standard liquid vessel 3. The fluorescence 12 generated by optical excitation of the liquid 10 passes through the sample liquid 11 in a sample liquid vessel 4 and is condensed by a fluorescence condenser lens 5 to a spectroscope 6 by which the light is spectrally separated. The spectrally separated light is detected by a multi-channel detector 7. The detected signal is transmitted to a data processing and outputting device 8. The determined spectrum is compared with the standard spectrum preliminarily stored in the device 8, by which the absorption spectrum of the sample liquid 11 is determined. The measured fluorescent spectrum is subjected to correction by using the absorption spectrum. The analysis with high accuracy is thus executed.

63. 发明专利

JPS61223586A NONDESTRUCTIVE INSPECTION METHOD AND DEVICE FOR SPENT FUEL 失效
公开(公告)号：JPS61223586A
公开(公告)日：1986-10-04
申请号：JP6466985
申请日：1985-03-28
申请人： HITACHI LTD
发明人： FUJIMORI HARUO , OTSUKA HISAO
IPC分类号： G01T1/167 , G01T3/00 , G21C17/06

64. 发明专利

JPS61165678A NEUTRON DETECTOR 失效
公开(公告)号：JPS61165678A
公开(公告)日：1986-07-26
申请号：JP573185
申请日：1985-01-18
申请人： HITACHI LTD
发明人： FUJIMORI HARUO , KOMORI ITARU
IPC分类号： G01T3/00 , G21C17/10 , G21C17/12 , H01J47/12
摘要： PURPOSE:To simplify measurement, by providing a neutron absorbing body for cyclically increasing and decreasing the number of neutrons incident to a nuclear reaction substance and a neutron detector for amplifying the discharge energy of nuclear reaction generated corresponding to said cycle in a narrow band. CONSTITUTION:A neutron detector has a neutron absorbing body 6 for cyclically increasing and decreasing the number of neutrons incident to a nuclear reaction substance and a neutron detection part for detecting the discharge energy of nuclear reaction generated corresponding to said cycle in a narrow band while amplifying the same. That is, this apparatus is placed in the field of a neutron stream 9, the number of hot neutrons incident to a nuclear fission reaction body 1 cyclically cover the front surface of a neutron window 5 and repeat increase and decrease cyclically to repeatedly discharge nuclear fission energy in the same cycle and said energy is immediately converted to heat energy. Therefore, a neutron can be detected by the piezoelectric element 2 coupled with the nuclear fission reaction body 1 and measurement can be simplified.

65. 发明专利

JPS60165595A METHOD OF STORING SPENT NUCLEAR FUEL 失效
公开(公告)号：JPS60165595A
公开(公告)日：1985-08-28
申请号：JP1996484
申请日：1984-02-08
申请人： HITACHI LTD
发明人： IBA HAJIME , FUJIMORI HARUO , YUSA HIDEO , SAITOU MASAYUKI
IPC分类号： G21F9/36 , G21C19/32 , G21C19/40 , G21F9/00 , G21F9/22

66. 发明专利

JPS59222747A X RAY SPECTROSCOPIC ANALYSIS AND APPARATUS THEREOF 失效
公开(公告)号：JPS59222747A
公开(公告)日：1984-12-14
申请号：JP9698783
申请日：1983-06-02
申请人： HITACHI LTD
发明人： FUJIMORI HARUO , KOMORI ITARU
IPC分类号： G01N23/225 , H01J37/252
摘要： PURPOSE:To perform an X ray spectroscopic analysis in a wide X ray wavelength range by having an electron beam irradiating an analysis sample and the reference metal sample alternately while a spectroscopic crystal is scanned in a fixed direction to calibrate an analyzed spectrum with a reference spectrum. CONSTITUTION:An electron beam 13 is made to irradiate an analysis smaple 9 and the reference metal sample 15 alternately via a deflection circuit 2 from an electron beam introduction system 1. After analyzed with a spectroscopic crystal 3, the X ray 14 generated is detected and measured with an X ray detector 5 and an X ray measuring circuit 7. In addition, the position of the spectroscopic crystal 3 is likewise detected and measured by a step scanning. The electron beam 13 is deflected and controlled at a pendulation angle equal between the analysis sample 9 and the reference sample 15. The theoretical X ray wavelength of the analyzed spectrum near an (n)th order ray is calibrated based on the position of the spectroscopic crystal corresponding to the (n)th order ray of the characteristic X ray of reference sample found out by a profile analysis depending on the reference spectrum. This enables a highly accurate measurement of a shift of the characteristic X ray spectrum due to a chemical bond in a wide X ray wavelength range.

67. 发明专利

JPS59136486A Nickel-alloyed steel resistant to hydrogen fluoride gas 失效
标题翻译：镍氢氟化物耐镍耐钢
公开(公告)号：JPS59136486A
公开(公告)日：1984-08-06
申请号：JP983183
申请日：1983-01-26
申请人： Hitachi Ltd
发明人： FUJIMORI HARUO
IPC分类号： C23C8/16
摘要： PURPOSE: To improve corrosion resistance in the atmosphere of hydrogen fluoride gas, by forming the coating film of nickel oxide on Ni-alloyed steel in an oxidizing atmosphere of a high temp., and taking out said Ni-alloyed steel from the oxidizing atmosphere of a high temp. before the coating film of iron oxide is formed.
CONSTITUTION: Ni-alloyed steel is placed in an oxidizing atmosphere of a high temp. to form the coating film of nickel oxide having low reactivity to hydrogen fluoride. Before the coating film of iron oxide having high reactivity to hydrogen fluoride is formed, said Ni-alloyed steel is taken out of the oxidizing atmosphere of a high temp. Hence, the corrosion resistance of the Ni-alloyed steel in the atmosphere of hydrogen fluoride gas is improved.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了提高氟化氢气体的耐腐蚀性，通过在高温氧化气氛中在Ni合金钢上形成氧化镍涂层，并从氧化气氛中取出所述Ni合金钢高温之前形成氧化铁的涂膜。构成：将Ni合金钢置于高温氧化气氛中。以形成对氟化氢具有低反应性的氧化镍涂层。在形成对氟化氢具有高反应性的氧化铁的涂膜之前，将所述Ni合金钢从高温氧化气氛中取出。因此，Ni合金钢在氟化氢气体气氛中的耐腐蚀性提高。

68. 发明专利

JP2006291325A Welded member, welded structure using the same and highly corrosion-resistant austenitic stainless steel 有权
标题翻译：焊接构件，使用其的焊接结构和耐腐蚀的奥氏体不锈钢
公开(公告)号：JP2006291325A
公开(公告)日：2006-10-26
申请号：JP2005116421
申请日：2005-04-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIBASHI MAKOTO , UKO KENJI , FUJII KAZUMI , KATO TAKAHIKO , YAMAMOTO MICHIYOSHI , OBATA KYOJI , ANZAI HIDEYA , FUJIMORI HARUO , FUSE MOTOMASA
IPC分类号： C22C38/00 , C22C38/58 , G21D1/00
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a welded member which is excellent in stress corrosion cracking resistance and can reduce the effect on stress corrosion cracking as a structural material contacting a high temperature and high pressure water in a light-water reactor, even when its surface is subjected to machining, a welded structure and a nuclear power plant using the same, a highly corrosion-resistant austenitic stainless steel member with a high stress corrosion cracking resistance and highly corrosion-resistant austenitic stainless steel.
SOLUTION: The welded member contains, by mass, 0.001-0.020% C, 0.1-1.0% Si, 0.2-2.0% Mn, 16-20% Cr, 9-15% Ni, ≤3% Mo, 0.001-0.12% N and the balance being Fe and unavoidable impurities, wherein Cr and Md
30 calculated by formula 1, Md
30 =551-462(C+N)-9.2Si-8.1Mn-13.7Cr-29Ni-18.5Mo-1.42(ν-8.0) (wherein ν is a crystal grain size number), satisfy relation 2, Cr+0.022Md
30 ≥14.5.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种耐应力腐蚀开裂性优异的焊接部件，能够降低在轻水反应堆中与高温高压水接触的结构材料的应力腐蚀开裂的影响，甚至当其表面进行机械加工时，使用焊接结构和使用该结构的核电站，具有高抗腐蚀开裂性和高耐蚀奥氏体不锈钢的高耐蚀奥氏体不锈钢构件。解决方案：焊接部件含有0.001-0.020％C，0.1-1.0％Si，0.2-2.0％Mn，16-20％Cr，9-15％Ni，≤3％Mo，0.001- 0.12％N，余量为Fe和不可避免的杂质，其中通过式1计算的Cr和Md 30 = 551-462（C + N）-9.2Si -8.1Mn-13.7Cr-29Ni-18.5Mo-1.42（ν-8.0）（其中ν是晶粒尺寸数），满足关系式2，Cr + 0.022Md 30 ≥14.5。版权所有（C）2007，JPO＆INPIT

69. 发明专利

JPH09113686A NUCLEAR REACTOR 失效
公开(公告)号：JPH09113686A
公开(公告)日：1997-05-02
申请号：JP27527395
申请日：1995-10-24
申请人： HITACHI LTD
发明人： NAGASE HIROSHI , FUJIMORI HARUO , IBE HIDEFUMI
IPC分类号： G21D1/00 , G21D3/08
摘要： PROBLEM TO BE SOLVED: To hold back the occurrence and development of stress corrosion cracking(SCC) by branching hydrogen-injected water and feeding it directly to the vicinity of in-vessel equipment to control the water quality environment of it. SOLUTION: The flow rate and speed of hydrogen-infected water is controlled by a water quantity and water branching controller 31, and the water is mixed with the reactor water fed to a new water feed sparger 18a and then is branched 32 into two parts. One is fed from a jet pump 9 to a lower body of a shroud 2. On the other hand, the reactor water fed to a hydrogen-injecting pipe 38 (38a and 38b) newly installed in a few places around a reactor core 39 is fed directly to the inner surface of the shroud 2 without passing through the reactor core 39, which effectively lowers the corrosion potential in the inner side of an upper body of the shroud 2. Then, the corrosion potential inside the shroud 2 is measured by a sensor in the pipe 38, and it is regulated within a certain range by controlling the quantity of injected hydrogen or water with a hydrogen.

70. 发明专利

JPH09113673A ANOMALY SURVEILLANCE METHOD AND DEVICE FOR PLANT 失效
公开(公告)号：JPH09113673A
公开(公告)日：1997-05-02
申请号：JP27527295
申请日：1995-10-24
申请人： HITACHI LTD
发明人： ISOBE YUSUKE , UCHIDA SHUNSUKE , FUJIMORI HARUO
IPC分类号： G21C17/00 , G05B23/02 , G21D3/00 , G21D3/04
摘要： PROBLEM TO BE SOLVED: To immediately and surely detect anomaly precursor of equipment which has a damage part or repair part and needs selective surveillance by altering the tolerable values of plant operation parameters based on equipment status information such as repair information and damage information. SOLUTION: Data of damage discovered during inspections and of conducted repair work (equipment status information) are input and they are separated into names of equipments in the damage part and repair part and equipment status information such as execution of repair and remaining damage, etc. Then the names of equipments and the correlation data base of equipment/plant operation parameters are compared and selective surveillance parameters are set. The equipment status information and correlation data base of equipment status/tolerable fluctuation width are compared and tolerable fluctuation values of the selective surveillance parameters are obtained, which are added to a reference parameter value to alter and set the selective tolerable parameter values (threshold values). When the operation parameters taken in are the selective surveillance parameters they are compared with the selective tolerable parameters and when they are different from them, they are compared with ordinary tolerable parameter values. If they exceed the tolerable parameter values, an anomaly alarm is indicated.

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