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1. 发明专利

JPH1085739A STEAM CONDENSATE DESALTING DEVICE 失效
公开(公告)号：JPH1085739A
公开(公告)日：1998-04-07
申请号：JP24810796
申请日：1996-09-19
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SASAKI NORIYUKI , SEGAWA YOSHIHIRO
IPC分类号： C02F1/42 , B01J47/04 , B01J49/00
摘要： PROBLEM TO BE SOLVED: To prevent water from becoming qualitatively deteriorated and thereby enhance the efficiency of using an anionic exchange resin by packing a particulate cationic exchange resin and a particulate anionic exchange resin, both of which has an almost equal specific gravity and a particulate cationic exchange resin with a smaller specific gravity than that of the former in a steam condensate desalting tower. SOLUTION: This steam condensate desalting tower 120 is filled with an upper layer ion exchange resin 121 and a lower layer ion exchange resin 122. The upper layer ion exchange resin 121 is formed of a cationic exchange resin. The lower layer ion exchange resin 122 is formed of a uniform mixture of cationic exchange resin and anionic exchange resin which have a larger specific gravity than the upper layer ion exchange resin 121 and an equal specific gravity. The upper layer ion exchange resin 121 takes up main cationic impurities, and the lower layer ion exchange resin removes some leaking from the cationic impurities and a trace of anionic impurities. In addition, it is possible to use the resins for a long time by utilizing an inert gas such as nitrogen originating from an air pipe 38 at the time of back wash.

2. 发明专利

JPH0824854A CONDENSED WATER PURIFYING APPARATUS AND METHOD 失效
公开(公告)号：JPH0824854A
公开(公告)日：1996-01-30
申请号：JP15973794
申请日：1994-07-12
申请人： TOSHIBA ENGINEERING CO , TOSHIBA CORP
发明人： SEGAWA YOSHIHIRO , KOUNO MOROTAKI , SASAKI NORIYUKI
IPC分类号： B01D63/02 , B01J47/00 , C02F1/44
摘要： PURPOSE:To use only a condensed water filter device in cleaning operation before starting while keeping a condensed water desalting apparatus to hold a degassed water and to prevent the deterioration of the ion exchange resin built in the condensed water desalting apparatus. CONSTITUTION:The condensed water purifying apparatus is constituted of a condensed water filter device 10 filtering insoluble impurities contained in condensed water before condensed water formed by condensing main steam used in a turbine by a condenser 14 is returned to a nuclear, reactor, a condensed water desalting apparatus 12 desalting insoluble impurities in condensed water filtered by the condensed water filter device 10 and a powder resin precoat device 16 being a soluble impurity removing means desalting soluble impurities in the condensed water filter device 12.

3. 发明专利

JPH04315094A CONDENSATE PURIFICATION SYSTEM FOR NUCLEAR POWER PLANT 失效
公开(公告)号：JPH04315094A
公开(公告)日：1992-11-06
申请号：JP8035291
申请日：1991-04-15
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SEGAWA YOSHIHIRO , KAWANO TAKAO
IPC分类号： G21C19/307
摘要： PURPOSE:To prevent the oxidation degradation of ion exchanger resin by providing a condensate demineralization device with a regeneration water tank for supplying water to regenerate and preserve positive ion and negative ion exchanger resin in a condensate demineralization tower. CONSTITUTION:The steam having driven a turbine 103 is condensed in a condenser 105 to be condensate and it is pressurized with a low pressure condensate pump 106 to flow through an air extractor 107 and a ground steam condenser 108. The condensate purified with a condensate filtering device 109 and a condensate demineralization device 110 is reserved in a regeneration water tank 118 through a regeneration water sending pump 119 which are provided downstream of the condensate demineralization device 110. The condensate water in the regeneration water tank 118 is supplied through the regeneration water sending pump 119 to the condensate demineralization device 110 and a regeneration device 115 when it is used for regenerating the ion exchanger resin in the regeneration device 115 or preserving the ion exchanger resin in the condensate demineralization device 110 until the start up of the plant. Thus, low oxygen content water degassed by providing the regeneration water tank 118 can be supplied to the condensate demineralization device 110 and the regeneration device 115 and so the oxidation degradation of the ion exchanger resin is prevented.

4. 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.

5. 发明专利

JPH05329382A RECOVERED WATER DESALTING DEVICE 失效
公开(公告)号：JPH05329382A
公开(公告)日：1993-12-14
申请号：JP13818292
申请日：1992-05-29
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SASAKI NORIYUKI , OTA MASAO , OTA MASAMIKI , SEGAWA YOSHIHIRO
IPC分类号： B01J47/04 , B01J49/00 , C02F1/42 , G21F1/02 , G21F3/00 , G21F9/12
摘要： PURPOSE:To provide a recovered water desalting device which contributes to the improvement of an outlet water quality in a recovered water/desalting tower and in turn, the amelioration of water quality in a nuclear reactor by allowing the total organic carbon eluded from an ion exchange resin at a rapidly increasing rate in the early stage of water supply to flow out of the system purifying the ion exchange resin using warm water. CONSTITUTION:This recovered water desalting device consists of a recovered water desalting tower 20 equipped with an ion exchange resin 21 for purifying a recovered water, a cationic exchange resin regeneration tower 22 for separating the used ion exchange resin 21 into a cation exchange resin and an anion exchange resin, to regenerate the separated cation exchange resin, an anion exchange resin regeneration tower 23 for regenerating the separated anion exchange resin, and a warm water supply device 27 for supplying warm water to purify the regenerated cation exchange resin and anion exchange resin.

6. 发明专利

JPH06114277A CONDENSATE DESALTING DEVICE 失效
公开(公告)号：JPH06114277A
公开(公告)日：1994-04-26
申请号：JP15514692
申请日：1992-06-15
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SEGAWA YOSHIHIRO , KAWANO TAKAO
IPC分类号： B01J49/00 , C02F1/42 , G21F9/12
摘要： PURPOSE:To provide the condensate desalting device which can prevent the deterioration in the oxidation of ion exchange resins and can save regenerating liquid chemicals by storing heater drain water of hot water having a low dissolved oxygen concn. into a water tank for regeneration and supplying this heater drain water at the time of thermal regeneration and storage of the ion exchange resins and the removal of the weak ion components captured in the ion exchange resins. CONSTITUTION:This condensate desalting device has a condensate desalting column 10 for removing the soluble impurities contained in the condensate and a regenerating device 9 for regenerating the cation exchange resins and anion exchange resins in this condensate desalting column 10. The hot water is supplied to the water for the regeneration, storage, etc., of the cation exchange resins and anion exchange resins of the above device and the hot water is the heater drain water and is stored in the water tank 20 for regeneration.

7. 发明专利

JPH0919683A CONDENSATE DEMINERALIZER 失效
公开(公告)号：JPH0919683A
公开(公告)日：1997-01-21
申请号：JP17073395
申请日：1995-07-06
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SASAKI NORIYUKI , SEGAWA YOSHIHIRO , SATO MASAHIRO
IPC分类号： G21C19/307 , B01J49/00 , C02F1/42
摘要： PROBLEM TO BE SOLVED: To prolong the life of ion exchange resin and to reduce frequencies of regeneration by preventing deterioration of the ion exchange resin due to oxidation and also dissipation of an ion exchange capacity. SOLUTION: This device is provided with a condensate demineralizer 8 for removing a soluble impurity contained in the feed water condensed with a condenser 4, a cation exchange resin regeneration tower 17 for regenerating the ion exchange resin in this condensate demineralizer 8 and an anion exchange resin regeneration tower 18, and a regeneration device 13 having a resin storage tank 19. The cation exchange resin regeneration tower 17 and the anion exchange resin regeneration tower 18 of the regeneration device 13, the resin storage tank 19 and the condensate demineralizer 8 are connected via pipings with a nitrogen gas feed device 20 for introducing nitrogen gas as resin conveying, mixing and regeneration uses.

8. 发明专利

JPH08313692A RECOVERY METHOD AND DEVICE FOR ION EXCHANGE RESIN IN DEMINERALIZING DEVICE 失效
公开(公告)号：JPH08313692A
公开(公告)日：1996-11-29
申请号：JP12335395
申请日：1995-05-23
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SASAKI NORIYUKI , SEGAWA YOSHIHIRO
IPC分类号： G21F9/12 , B01J49/00
摘要： PURPOSE: To ensure the stability of water quality by enabling exhausting high TOC out of system immediately after water supply and preventing the oxidation degradation of ion exchange resin. CONSTITUTION: In a condensate demineralizing device of a reactor power plant, particle ion exchange resin in a demineralizing tower is washed with warm demineralized water of the similar temperature to the condensate. By this, high total organic carbon (TOC) immediately after water supply in the demineralizing tower 20 is reduced. A warm water supplier 27 and warm water inlets 31, 32 and 33 for supplying demineralized water for washing and nitrogen supplier 36 for demineralization are connected to a cation exchange resin recovery tower 22 and anion exchange resin recovery tower 23. To the condensate inlet pipe 29 in the demineralizing tower 20, a condensate temperature meter 34 is provided. By this, sudden TOC elution immediately after temperature rise and TOC elution from the ion exchange resin due to contact to high oxygen solution water and oxidation degradation can be suppressed.

9. 发明专利

JPH04204296A DESALTING DEVICE FOR NUCLEAR POWER PLANT 失效
公开(公告)号：JPH04204296A
公开(公告)日：1992-07-24
申请号：JP33673990
申请日：1990-11-30
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： NODA TETSUYA , SEGAWA YOSHIHIRO , KAWANO TAKAO
IPC分类号： G21F9/12 , B01J49/00 , G21C19/307
摘要： PURPOSE:To enable processing also week ion components efficiently by providing an ion exchange resin recovery means to guide hot water during the recovery of ion exchange resin in a desalting device provided inside with ion exchange resin. CONSTITUTION:At the inlet pipe 13 of a desalting tower 11, an inlet valve 14 is provided and at the outlet pipe 15, an outlet valve 16 is provided. Downstream of the inlet valve 14 of the inlet pipe 13, a hot water supply pipe 17 is connected. The hot water supply pipe 17 has a supply valve 18 and supplies hot water such as reactor water and heater drain water for turbine system, etc., to the desalting tower 11 during ion exchanger resin recycle. The hot waste liquid passed through the desalting tower 11 includes ion impurity so that it is drained to radioactive liquid waste processing system by way of drain pipe 19. The drain pipe 19 is branched on the way of outlet pipe 15 and is provided with a drain valve 20 in the line. Thus, by passing hot water through the ion exchange resin having approached a break paint, a part of caught ion components are discharged.

10. 发明专利

JPH1054898A DEVICE FOR MAINTAINING QUALITY OF CONDENSATE STORED IN CONDENSATE TANK 失效
公开(公告)号：JPH1054898A
公开(公告)日：1998-02-24
申请号：JP21225896
申请日：1996-08-12
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SASAKI NORIYUKI , SEGAWA YOSHIHIRO
IPC分类号： G21C19/30 , G21D1/00 , G21D1/02 , G21D3/08
摘要： PROBLEM TO BE SOLVED: To maintain the quality of a condensate stored in a condensate tank at a high level by installing a TOC(total organic carbon) resolving device to a pure water pipeline and resolving the TOC of the pure water supplied to the condensate tank. SOLUTION: Raw water pumped up from a water source 18, such as the sea, river, etc., is purified by means of a water purifying device 19. In order to the reduce the TOC concentration, a TOC resolving device 24 composed of an ozonizer 30 which generates ozone by hydrolysis, a hollow fiber film filter 25, and a demineralizing tower 26 is installed to a pure water supply pipeline 20 on the downstream side of the device 19. The quality of the condensate stored in a condensate tank 17 is maintained at a high level by resolving the TOC of the pure water flowing in the tank 17. In addition, the condensate in the tank 17 is circulated between the tank 17 and the resolving device 24 through a condensate circulating pipeline 34 by means of a condensate circulating pump 33 even when the TOC concentration of the condensate stored in the tank 17 is high. At the same time, the TOC is resolved by injecting the ozone generated from the ozonizer 30 into the condensate stored in the tank 17 through an ozone injecting pipeline 31.

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