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1. 发明专利

JP2001153329A EXHUST GAS PURIFICATION PLANT FOR REFUSE BURNING AND ITS OPERATION METHOD 失效
公开(公告)号：JP2001153329A
公开(公告)日：2001-06-08
申请号：JP33315999
申请日：1999-11-24
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： OKUBO DAISUKE , TANI MICHINARI , IWAI KAZUMI
IPC分类号： F01K27/02 , F23G5/16 , F23G5/46 , F23G5/50
摘要： PROBLEM TO BE SOLVED: To obtain an exhaust gas purification plant for refuse incineration by which an exhaust gas purification treatment can be conducted while maintaining a stable burning condition without flame-off of the combustor even when the oxygen concentration of the exhaust gas is lowered suddenly due to a soot blower. SOLUTION: When the oxygen concentration of incineration exhaust gas 32 lead into the combustor 1 is suddenly lowered, the operation mode is switched over, information of an oxygen concentration meter 17 of the combustion gas, a thermometer 16 of the combustion gas are fed back to a control device 50 to control the flow rate of flame stabilizing air 31 by regulating the flow-rate control value 11.

2. 发明专利

JP2000171022A METHOD AND DEVICE FOR PURIFYING WASTE GAS OF WASTE INCINERATION 失效
公开(公告)号：JP2000171022A
公开(公告)日：2000-06-23
申请号：JP34448598
申请日：1998-12-03
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： NOMOTO SATORU , KOYAMA KAZUHITO , OKUZAWA TSUTOMU , KAWASAKI TERUFUMI , ISHIMARU HITOSHI , TANI MICHINARI , IWAI KAZUMI
IPC分类号： B01D53/70 , F23G7/06 , F23J15/06 , F23J15/08
摘要： PROBLEM TO BE SOLVED: To decompose and reduce more effectively poisonous substances contained in the waste gas of waste incineration. SOLUTION: A part of the waste gas of waste incineration is sent into a combustion device 9 together with fresh air 15 whereby the instantaneous reduction of oxygen concentration can be restrained even when the constituents of waste gas of waste incineration, which is discharged out of a waste incinerating facility, is fluctuated and combustion through the combustion device 9 can be effected stably whereby the stability of combustion can accordingly be secured regardless of the fluctuation of constituents of the waste gas of waste incineration. Further, the other part of waste gas of the waste incineration, which is branched by a second branch pipe 8B, is sent into a mixing device 18 to mix high-temperature exhaust gas of the combustion device 9 and the waste gas of waste incineration in the mixing device 18 whereby the temperature of waste gas can be unified under the condition of a high temperature and, accordingly, poisonous substances, such as dioxins especially, can be decomposed and reduced efficiently while the faulty decomposition of the poisonous substances due to the lowering of temperature can be avoided.

3. 发明专利

JPS61119902A Steam generator 失效
公开(公告)号：JPS61119902A
公开(公告)日：1986-06-07
申请号：JP23842384
申请日：1984-11-14
申请人： Hitachi Ltd
发明人： TANI MICHINARI
IPC分类号： F22B1/06 , F22B1/16 , F28D7/06 , F28D7/16 , F28F9/02
CPC分类号： F28D7/06

4. 发明专利

JP2001340838A WASTE TREATMENT APPARATUS 失效
公开(公告)号：JP2001340838A
公开(公告)日：2001-12-11
申请号：JP2000164734
申请日：2000-05-30
申请人： HITACHI LTD
发明人： TANI MICHINARI , IKEUCHI TOSHIAKI
IPC分类号： B09B3/00
摘要： PROBLEM TO BE SOLVED: To provide a waste treatment apparatus which can simultaneously convey and cool combustible solids generated by a pyrolysis furnace and separate incombustible solids. SOLUTION: By conveying the combustible solids produced by the pyrolysis furnace 1 by gas of which the temperature is adjusted in a cooling classifier 51 by a heat exchanger 55, the temperature of the combustible solids is adjusted, and the incombustible solids different in specific gravity and particle size are separated.

5. 发明专利

JPH09324900A METHOD AND APPARATUS FOR MONITORING THERMAL FATIGUE DAMAGE IN PIPING OR THE LIKE 失效
公开(公告)号：JPH09324900A
公开(公告)日：1997-12-16
申请号：JP14013796
申请日：1996-06-03
申请人： HITACHI LTD
发明人： HIRANO AKIHIKO , HAYASHI MAKOTO , HIRANO ATSUYA , HATTORI SHIGEO , YAMAMOTO MICHIYOSHI , TANI MICHINARI
IPC分类号： G21C17/003 , F16L55/00 , F17D5/06
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for monitoring in a high precision manner in an on-line mode during a plant operation a degree of thermal fatigue damage that a piping and a nozzle of a nuclear power plant or a fire plant may receive. SOLUTION: A part of a pipe 100 and/or a nozzle receiving a thermal fatigue is provided with a thin-walled part 201 by machining a circular hole from an outer circumference part, a thermal fatigue damage is concentrated at this thin-walled part 201, a size of the thermal fatigue damage concentrated in a preceding manner is detected by a potential method at a rear surface of the thin-walled part 201 or a through-pass of crack caused by the thermal fatigue at the thin-walled part is detected by a humidity detecting sensor 215 or a temperature measuring sensor 212, thereby a size of the thermal fatigue damage at the thick-walled part is evaluated, a suitable characteristic against the thermal fatigue of the piping 100 or the nozzle is monitored in a high precision manner in an on-line during operation of the plant. With such an arrangement as above, it is possible to detect the accumulation of the thermal fatigue damage before the piping and the nozzle are damaged by the thermal fatigue damage. Thus, it is possible to keep a high reliability in operation of the plant.

6. 发明专利

JPS60117193A WATER LEVEL INDICATOR FITTED NOZZLE FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS60117193A
公开(公告)日：1985-06-24
申请号：JP22419383
申请日：1983-11-30
申请人： HITACHI LTD , TOKYO GENSHIRIYOKU SANGYO KENK
发明人： TANAKA MINORU , SAITOU HIDEYO , SHIMURA TAKAO , KUROSAWA KOUICHI , TANI MICHINARI
IPC分类号： G21C17/035 , G01F23/00 , G01F23/14 , G21C17/02

7. 发明专利

JPH02218920A OPERATION MONITORING APPARATUS FOR PLANT EQUIPMENT 失效
公开(公告)号：JPH02218920A
公开(公告)日：1990-08-31
申请号：JP4010389
申请日：1989-02-20
申请人： HITACHI LTD
发明人： HAYASHI MAKOTO , TANI MICHINARI
IPC分类号： G01D21/00
摘要： PURPOSE:To evaluate the damages of plant equipment by picking up the status- quantity data from sensors, compressing the data, and recording the compressed state-quantity data as operation history data. CONSTITUTION:Data from a pressure sensor 2 - a temperature sensor 7 are amplified in an amplifiers 8-13 and undergo A/D conversion 14-19. The wave form analysis of the data and the data compression are performed in a microcomputer 20. Then, the compressed data are transferred into a higher computer 27. The operating states are analyzed in said computer 27 based on the changing states of the pressures and the temperatures, and the histories of the operating states are formed as a data base. The data are stored. Stress analysis is performed based on the changing states of the pressure and the temperatures. The stress histories are formed and stored as a data base. Corrosion and damages are analyzed based on the operating state histories and the stress histories, and a corrosion/damage data base is formed. The accumulated damages are evaluated for the fatigue damages and the corrosion damages, respectively. The data of the recorded temperatures, pressures and the like are transferred into a host computer 50.

8. 发明专利

JPS6459194A NUCLEAR REACTOR PRESSURE VESSEL 失效
公开(公告)号：JPS6459194A
公开(公告)日：1989-03-06
申请号：JP21540987
申请日：1987-08-31
申请人： HITACHI LTD
发明人： TANI MICHINARI , SAITO HIDEYO
IPC分类号： G21C7/12 , G21C13/00
摘要： PURPOSE:To prevent a hazardous exposure to radioactivity, by providing a cylindrical housing skirt of a control rod drive mechanism enveloping a longitudinal part of the housing skirt of the control rod drive mechanism protruding downwardly from a lower end plate of a nuclear reactor pressure vessel. CONSTITUTION:A nuclear pressure vessel 1 contains a core shroud 8 enveloping a core 7 and a coolant circulating inside the pressure vessel 1. And a number of housing of control rod drive mechanisms 4 housing control rod drive mechanisms for driving control rods which controls an output of a reactor 7, penetrate through a lower end plate 2 fixed to a lower part of the pressure vessel and composing the lower part of the pressure vessel itself, and moreover the housing of the control drive mechanism 4 is fixed to the lower end plate 2 aligned with a core shroud 8 with a shop fabrication having enough working space and with well-equipped machine tools. Following this procedure, a housing support 5 of control rod drive mechanism can be assembled into the pressure vessel 1 in the shop and consequently a hazardous radioactivity exposure at cutting off the housing of the control drive mechanism is prevented.

9. 发明专利

JPS6336195A METHOD OF REPLACING CONSTRUCTION OF REACTOR INTERNAL STRUCTURE 失效
公开(公告)号：JPS6336195A
公开(公告)日：1988-02-16
申请号：JP17750486
申请日：1986-07-30
申请人： HITACHI LTD
发明人： KUROSAWA KOICHI , SAITO HIDEYO , SAITO TAKASHI , NARUSE AKISUKE , TANI MICHINARI
IPC分类号： G21C19/02 , G21C5/02 , G21C5/10 , G21C17/08 , G21F9/28

10. 发明专利

JPS60113191A WATER LEVEL INDICATOR FITTED NOZZLE FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS60113191A
公开(公告)日：1985-06-19
申请号：JP22065783
申请日：1983-11-25
申请人： HITACHI LTD
发明人： TANI MICHINARI , SAITOU HIDEYO
IPC分类号： G21C17/035 , G01F23/00 , G01F23/14 , G21C17/02

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