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1. 发明专利

JP2007107812A Kiln repairing method 审中-公开
标题翻译：窑修复方法
公开(公告)号：JP2007107812A
公开(公告)日：2007-04-26
申请号：JP2005298905
申请日：2005-10-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIGENAKA NAOTO , SASAKI HIROSHI
IPC分类号： F27B7/22 , F27D1/00
摘要： PROBLEM TO BE SOLVED: To provide a kiln repairing method, capable of repairing a damaged part of a kiln without affecting the function or performance of the kiln.
SOLUTION: In the kiln repairing method for a pyrolysis device including a cylindrical kiln for thermally decomposing waste material into a pyrolysis gas and a pyrolytic residue containing pyrolytic carbon, an outer cylinder 20 having an inside surface of a curvature radius R1 substantially equal to the curvature radius of the outer circumferential surface of the circumferential wall 3a of a rotary kiln 3 is fixed to a damaged part of the circumferential surface while bonding its outer peripheral part to the outer circumferential surface of the rotary kiln. Thereafter, a removal part 3d including the damaged part is removed from the outer circumferential wall of the rotary kiln covered with the outer cylinder while leaving the outer peripheral part to which the outer cylinder is bonded by a width W1.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供窑修复方法，能够修复窑的损坏部分而不影响窑的功能或性能。解决方案：在包括用于将废料热分解成热解气体的圆柱形窑和含有热解碳的热解残渣的热解装置的窑炉修复方法中，具有曲率半径R1的内表面基本相等的外筒20 相对于回转窑3的周壁3a的外周面的曲率半径，在将外周部粘接到回转窑的外周面的同时，固定在圆周面的损伤部。此后，在外圆筒的外周部离开宽度W1的同时，从外筒覆盖的回转窑的外周壁除去包含损坏部的去除部3d。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2006038307A Pyrolysis plant 审中-公开
标题翻译：热解厂
公开(公告)号：JP2006038307A
公开(公告)日：2006-02-09
申请号：JP2004216700
申请日：2004-07-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIGENAKA NAOTO , MADOKORO MANABU , TAKAHAMA YOJI , USAMI SABURO , ISHIZAWA SHUICHI , MURAI YOICHI
IPC分类号： F23G5/20 , F23G5/027 , F27B7/08 , F27B7/24
摘要： PROBLEM TO BE SOLVED: To select a material capable of reducing wear of a material used in a seal in regard to a gas seal utilizing metallic contact for preventing leakage to the atmosphere of pyrolysis gas or heated air of a rotary kiln type pyrolysis plant.
SOLUTION: In the gas seal utilizing metallic contact of a fixed ring and a rotating ring, by providing a composition combined such that one of materials used in the fixed ring or the rotating ring is a material of high hardness, wear due to the metallic contact of the fixed ring and the rotating ring can be reduced.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了选择能够减少使用金属接触的密封件中使用的材料的磨损的材料，以防止泄漏到热解气体的空气或回转窑型热解的加热空气厂。解决方案：在利用固定环和旋转环的金属接触的气体密封件中，通过提供组合使得在固定环或旋转环中使用的材料之一是高硬度材料的组合物，由于可以减小固定环和旋转环的金属接触。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JPH10123277A INSPECTION METHOD AND DEVICE FOR HYDRAULIC PRESSURE CONTROLLING UNIT 失效
公开(公告)号：JPH10123277A
公开(公告)日：1998-05-15
申请号：JP27954296
申请日：1996-10-22
申请人： HITACHI LTD
发明人： MATSUI YUJI , SHIGENAKA NAOTO , SENOO MAKOTO , TAKAHASHI FUMINOBU
IPC分类号： G21C7/16
摘要： PROBLEM TO BE SOLVED: To make consistent ensuring integrity of hydraulic pressure controlling unit and shortening period of periodic plant inspection in a boiling water reactor power plant. SOLUTION: Time from inputting control rod drive signal 8 to terminating drive operation of the control rods 2 and notch number for driving the control rods 2 are measured and recorded with a hydraulic pressure controlling unit state surveillance device 19 and integrity of the hydraulic pressure controlling unit is judged based on the time needed till the termination of operation or the control rod drive time per 1 notch. For judging the integrity of normal drive system of the hydraulic pressure controlling unit, data recorded at startup and shut down of the plant are utilized, and for judging the integrity of emergency drive system, data recorded in scram test before plant startup are utilized.

4. 发明专利

JPH08254595A WELDING METHOD FOR IRRADIATED MATERIAL 失效
公开(公告)号：JPH08254595A
公开(公告)日：1996-10-01
申请号：JP5707995
申请日：1995-03-16
申请人： HITACHI LTD
发明人： NAGASE HIROSHI , FUJIMORI HARUO , SHIGENAKA NAOTO
IPC分类号： G21C19/02 , B23K9/00
摘要： PURPOSE: To provide a welding method capable of prevention of intergranular cracking of such a material irradiated by neutron as structure material of reactor structure and in-core components. CONSTITUTION: By analyzing a sample taken at repairing location and the surrounding part and observing the sample after preliminary heat treatment, the preliminary heat treatment conditions properly causing trapsite core on the sample is grasped. The preliminary heat treatment is conducted at the grasped conditions after mechanical treatment is applied to the repairing location of an actual machine. Then, after observing and analyzing the sample taken at the repairing location and the surrounding part of the actual machine and confirming that trapsite core is properly caused on the sample, welding is conducted. The properness of the welding is confirmed and welding is conducted at the repairing location of the actual machine. Inspection is done for the goodness of the welding state.

5. 发明专利

JPH06201680A METHOD AND DEVICE FOR INSPECTING MATERIAL 失效
公开(公告)号：JPH06201680A
公开(公告)日：1994-07-22
申请号：JP63093
申请日：1993-01-06
申请人： HITACHI LTD
发明人： SHIGENAKA NAOTO , FUJIMORI HARUO , ONO SHIGEKI , FUSE MOTOMASA , UCHIDA SHUNSUKE
IPC分类号： G01N17/00 , G01N33/20 , G21C17/003
摘要： PURPOSE:To measure the progress speed of intergranular corrosion of a material at the inspecting point of time so as to predict the service life of the material with high accuracy by preparing a collected sample A and virgin sample B having the same composition as the sample A has and allowing precipitates to deposit under the same condition, and then, comparing the shape of the precipitate from the sample A with that of the precipitate from the sample B. CONSTITUTION:A sample A is collected from a member to be evaluated for soundness and a virgin sample B having the same composition as the sample A has and subjected to the same heat treatment as that performed on the sample B is prepared. The samples have a square shape with sides of several mm and about 0.1mm in thickness. Precipitate are grown on grain boundaries by, for example, implanting ions into the samples A and B under the same condition, and the precipitates are observed under a transmission electron microscope. The precipitate sections formed on the crystal grain boundaries usually show shapes of convex lenses. Te major and minor axes (a) and (b) representing the shapes of the precipitate sections are measured on both samples A and B. Since the measured values have a relation of ralpha(a -b )/(a +b ) against the grain boundary energy (r) and the progress speed V of intergranular corrosion is strongly correlated with the energy (r), the progress speed V can be evaluated from the shape difference between the precipitates.

6. 发明专利

JPH0634786A METHOD OF ESTIMATING LIFE EXPECTANCY OF COMPONENT CONSTITUTING LIGHT WATER REACTOR AND DEVICE THEREFOR 失效
公开(公告)号：JPH0634786A
公开(公告)日：1994-02-10
申请号：JP18836392
申请日：1992-07-15
申请人： HITACHI LTD
发明人： ANZAI HIDEYA , NAKADA KIYOTOMO , SHIMANUKI SHIZUKA , KIDA TOSHITAKA , FUSE MOTOMASA , SHIGENAKA NAOTO , KUNIYA JIRO , IZUMITANI MASAKIYO , HATTORI SHIGEO , SAITO TAKASHI
IPC分类号： G01N17/00 , G01N33/20 , G21C17/003 , G21C17/02 , G21D1/00 , G21D3/08
摘要： PURPOSE:To estimate the life expectancy by estimating a crack progressing speed with the use of a density of oxygen (O2) solved in core water, a density of hydrogen peroxide (H2O2) and a conductivity. CONSTITUTION:A progress of a crack detected by a crack progress sensor 12 provided in a boiling water type light water reactor pressure vessel 11, is monitored by a crack progress monitor 13. Further, a dissolved oxygen meter 18 measures a density of oxygen (O2) in core water outside of the reactor, a dissolved hydrogen peroxide meter 19 measures a density of hydrogen peroxide (H2O2), and a conductivity meter 20 measures a, conductivity of the core water. A computer 21 carries out computation for converting into effective dissolved oxygen densities [O2]eff at several positions in a light water reactor plant, from a crack progressing speed detected by the sensor 12, densities of O2 and H2O2 and a conductivity detected by the dissolved oxygen meter 18, the dissolved hydrogen peroxide meter 19 and the conductivity meter 20. Accordingly, the life expectancy of each of components is calculated and is indicated on a display unit 21a.

7. 发明专利

JPS61239186A NON-CONTACT IONIC CURRENT MEASURING DEVICE 失效
公开(公告)号：JPS61239186A
公开(公告)日：1986-10-24
申请号：JP8018385
申请日：1985-04-17
申请人： HITACHI LTD
发明人： SHIGENAKA NAOTO , NISHIMURA EIICHI , SUZUKI KAZUMICHI
IPC分类号： G01T1/29 , G01N23/225
摘要： PURPOSE:To measure exactly and easily an ionic current in no contact with an ionic beam, by supplying a neutral target atom to an ionic beam line, making an ion collide with the neutral target atom, and counting a generated secondary electron by a particle detector. CONSTITUTION:By supplying a neutral target atom 2 to an ionic beam line from a neutral target atom supply device 13, an area where an ion 1 and the neutral target atom 2 collide with each other is provided, a secondary electron 3 generated by its collision is counted by a particle detector 4, and an ionic current value is derived from its value. That is to say, a true ionic current value is measured in advance by a Faraday cup 7 which has been installed from of a secondary electron generating zone, also a secondary electron counting value corresponding to its current value is derived by the particle detector 4, and its calibration table is made beforehand. In this way, on the contrary, the ionic current can be derived from the counting value.

8. 发明专利

JPS60165581A NUCLEAR FUEL ELEMENT 失效
公开(公告)号：JPS60165581A
公开(公告)日：1985-08-28
申请号：JP1994384
申请日：1984-02-08
申请人： HITACHI LTD
发明人： NISHIMURA EIICHI , SAKURAI HIROSHI , SHIGENAKA NAOTO , SUZUKI KAZUMICHI
IPC分类号： G21C3/62 , G21C3/28

9. 发明专利

JPH08243752A WELDING METHOD FOR STAINLESS STEEL CONTAINING HE 失效
公开(公告)号：JPH08243752A
公开(公告)日：1996-09-24
申请号：JP5396495
申请日：1995-03-14
申请人： HITACHI LTD
发明人： SUZUKI YUTAKA , HASHIMOTO MOTOYUKI , SHIGENAKA NAOTO , ONO SHIGEKI
IPC分类号： G21C19/02 , B23K9/23 , B23K9/235 , B23K31/00 , C22C38/00
摘要： PURPOSE: To enable welding of stainless steel containing He by performing a flaw introduction and heat input on the stainless steel before welding, thereby holding He in the grains, suppressing the inflow into the grain boundary and preventing intercrystalline cracks due to the formation of He bubbles. CONSTITUTION: In the step 101, a flaw introduction is performed by using one or more means from a heat cycle, mechanical stress induction, mechanical impact addition and ion irradiation. In the step 102, a heat input before welding is performed by using one or more means from RF heating, laser irradiation and electric heating. In the step 103, welding is performed after He is held in the grains by the flaw introduction and the heat input before welding. Thus, the welding of the stainless steel containing He is performed without causing intercrystalline cracks, thereby reducing the repair cost of the components of a nuclear reactor as well as the repair period.

10. 发明专利

JPH04212250A SPECIMEN SURFACE OBSERVING DEVICE 失效
公开(公告)号：JPH04212250A
公开(公告)日：1992-08-03
申请号：JP143191
申请日：1991-01-10
申请人： HITACHI LTD
发明人： SHIGENAKA NAOTO , HASHIMOTO MOTOYUKI , FUSE MOTOMASA
IPC分类号： G01B15/00 , G01N23/225 , H01J37/244 , H01J37/256 , H01J37/28
摘要： PURPOSE:To provide a specimen surface observing device capable of activating the surface of specimen as well as observing the reaction process on the surface of the specimen through reduction of noises generated by activating the surface of the specimen. CONSTITUTION:In this device, charge particle accelerator 23 is connected with a scanning type microscope 1. The surface of a specimen is activated through application of charge particle beams 4 thereto the induce a surface reaction. Through the application thereof secondary electrons depending on the shape of the surface of the specimen are generated. Any one of scanning electron beams and the charge particle beams are turned into pulses to eliminate an influence of the secondary electrons generated by the charge particle beams physically or in a software manner, to thereby only the secondary electron signals generated by the application of the scanning electron beams are visualized. The reaction process of the surface of the speciment activated or induced in reaction can be observed to an atom level through reduction of noise.

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