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1. 发明专利

JPH10213298A OXYGEN FILLING FACILITIES 失效
公开(公告)号：JPH10213298A
公开(公告)日：1998-08-11
申请号：JP1615197
申请日：1997-01-30
申请人： TOSHIBA ENGINEERING CO , TOSHIBA CORP
发明人： OTA MASAMIKI , HIROSE YUKI
IPC分类号： G21D1/00 , F17D1/02 , G21D3/08
摘要： PROBLEM TO BE SOLVED: To dispense with a storage construction for oxygen supply sources such as oxygen cylinders, reduce the installation space of oxygen filling facilities, shorten an oxygen filling conduit in the facilities, and save the purchase and exchange of oxygen supply sources. SOLUTION: A compressor 9, a dust collector 10 and a dehumidifier 11 are connected in series. On the downstream side of the dehumidifier 11, an automatic valve 13, an adsorption tank 12, another automatic valve 13, a tank 18, a flowmeter 15, a flow regulating valve 3, a cutoff valve 17 and a feedwater pipe 5 are connected in series on an oxygen filling conduit 4. The flowmeter 15 and the flow regulating valve 3 are further connected to a controller 16. That arrangement dispenses with the storage area for oxygen supply sources and also the purchase and exchange of them.

2. 发明专利

JPH10115696A METHOD FOR STOPPING INJECTION OF HYDROGEN-OXYGEN OF NUCLEAR POWER PLANT AND EQUIPMENT FOR INJECTION OF HYDROGEN-OXYGEN FOR EMERGENCY 失效
公开(公告)号：JPH10115696A
公开(公告)日：1998-05-06
申请号：JP27124396
申请日：1996-10-15
申请人： TOSHIBA ENGINEERING CO , TOSHIBA CORP
发明人： ISHIDA RYOICHI , OTA MASAMIKI , TAKAGI JUNICHI , HIROSE YUKI
IPC分类号： G21D3/08 , G21F9/02
摘要： PROBLEM TO BE SOLVED: To suppress a rise of the conductivity of reactor water and also to ensure the soundness of a gaseous waste treatment system at the time of an emergency stop of equipment for injection of hydrogen-oxygen by providing a reactor water conductivity meter making input to a control device of injection of hydrogen-oxygen. SOLUTION: An output signal of a reactor water conductivity meter 29 is inputted to a hydrogen-oxygen injection control device 26 and a hydrogen-oxygen injection control device 30 for emergency. An output signal of the injection control device 26 is inputted to a hydrogen flow adjustment valve 27, an oxygen flow adjustment valve 28 and the hydrogen-oxygen injection control device 30 for emergency. An output signal of the hydrogen-oxygen injection control device 30 for emergency is inputted to a hydrogen flow adjustment valve 33 for emergency and an oxygen flow adjustment valve 34 for emergency. Reactor water conductivity being monitored by the conductivity meter 29 at the time of a stop of injection of hydrogen- oxygen at the time when a plant is operated, the amount of injection of hydrogen-oxygen is decreased gradually so that the reactor water conductivity may not rise suddenly, and then the injection is stopped. At the time when the injection of hydrogen-oxygen is stopped at the time of a shutdown of the plant, the injection of hydrogen corresponding to an output is continued till the shutdown of the plant, while the reactor water conductivity is monitored by the conductivity meter 29.

3. 发明专利

JPH1099621A PRECOATING OF FILTER 失效
公开(公告)号：JPH1099621A
公开(公告)日：1998-04-21
申请号：JP25308396
申请日：1996-09-25
申请人： TOSHIBA ENGINEERING CO , TOSHIBA CORP
发明人： KANMI MASAHIKO , HIROSE YUKI
IPC分类号： B01D63/14 , B01D37/02 , B01D65/00
摘要： PROBLEM TO BE SOLVED: To improve the quality of treated water in the early stage of water supply by precoating the surface of a filter with a precoating material containing an insoluble solid content prior to the supply of water into the main body cylinder of a filter, at the time of precoating pleat type filters assembled in the main body cylinder with the precoating material. SOLUTION: A circulating pump 16 is connected to circulation piping 15 which connects a water inlet pipe 7 to a water outlet pipe 10, and outflow piping 18 is connected to the water outlet side of the circulation piping 15 through an outlet valve 17, while inflow piping 20 is connected to the water inlet pipe 7 side through an inlet valve 19. In addition, prior to the supply of water, a precoating material containing iron oxide powder (insoluble solid content) is placed in the main body cylinder 2 when a filter 1 is opened, and then water is injected. Next, the water in the main body cylinder 2 is circulated by the circulation pump 16 between the filter 1 and the circulation piping 15. Thus iron oxide powder of small particle diameter passing through a filter 3 is deposited on the surface of the filter 3, so that a fine film layer is formed on a precoated layer of large diameter particle which is previously formed on the surface of the filter 3.

4. 发明专利

JP2001349983A METHOD FOR OPERATING BOILING WATER NUCLEAR POWER PLANT 失效
公开(公告)号：JP2001349983A
公开(公告)日：2001-12-21
申请号：JP2000174617
申请日：2000-06-12
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： OTA MASAMIKI , HIROSE YUKI
IPC分类号： G21C9/00 , G21D1/00 , G21D3/08
摘要： PROBLEM TO BE SOLVED: To reduce the period of construction for startup and safely process residual hydrogen accompanying the extension of the period of hydrogen injection operation. SOLUTION: At the startup of a nuclear power plant, hydrogen is sealed into reactor water or a gas phase part in a reactor pressure vessel 1 from a hydrogen injection line 18 through a feedwater line 11, prior to heating of nuclei. The hydrogen sealed in and oxygen previously dissolved in the reactor water are recombined to form water by radiation energy after heating of the nuclei has been started. Thus, a conventional deaeration process for reducing the concentration of oxygen in the reactor water prior to heating of nuclei by suction deaerating the reactor through a main condenser held at negative pressure can be omitted.

5. 发明专利

JPH10192718A RESIN REGENERATOR FOR CONDENSATE DESALTER 失效
公开(公告)号：JPH10192718A
公开(公告)日：1998-07-28
申请号：JP107697
申请日：1997-01-08
申请人： TOSHIBA ENGINEERING CO , TOSHIBA CORP
发明人： SEGAWA YOSHIHIRO , HIROSE YUKI
IPC分类号： G21C19/307 , B01J49/00 , C02F1/42
摘要： PROBLEM TO BE SOLVED: To improve the quality of treated water and to reduce the amt. of a waste liq. to be generated in a separation stage by improving the separation of an ion-exchange resin and preventing its reverse degeneration. SOLUTION: This regenerator is provided with an anionic resin regeneration tower 3 to be supplied with a cation-exchange resin and an anion-exchange resin from a condensate desalting tower 1 through a resin outlet pipeline 10 and a cationic resin regeneration tower 4 for storing the cation-exchange resin. A cationic resin outlet pipeline 20 is connected to the lower part of the anionic resin regeneration tower 3 and used also as a whole ion-exchange resin outlet pipe to return the whole resin to the condensate desalting tower 1. An internally held water return pipeline 13, a developing water injection pipeline 17, a sodium hydroxide feed pipe 18, an agitating water injection pipeline 11, a waste liq. transfer pipe 22 and a cationic resin return pipeline 12 are connected to the anionic resin regeneration tower 3. A cation-exchange resin inlet pipeline 21, a sulfuric acid feed pipe 19, a drain pipeline 23 and a cationic resin return pipeline 12 are connected to the cationic resin regeneration tower 4.

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