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1. 发明专利

JPS62132584A CONDENSATE DESALTING TOWER 失效
公开(公告)号：JPS62132584A
公开(公告)日：1987-06-15
申请号：JP27327385
申请日：1985-12-06
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： USUI NAOSHI , SATO YOSHIAKI , OSUMI KATSUMI
IPC分类号： C02F1/42 , G21C19/30 , G21C19/307
摘要： PURPOSE:To improve the corrosion product removing performance of the titled condensate desalting tower by leaving a cationic resin and exchanging only an anionic resin when the resin is exchanged in the condensate desalting tower packed with the granular cationic resin and the granular anionic resin. CONSTITUTION:When the resin is exchanged in the condensate desalting tower packed with the granular cationic resin and the granular anionic resin, the cationic resin is left, and only the anionic resin is exchanged. Consequently, since the cationic resin having a great effect in removing the corrosion product generated in a feed water heater and a condenser and whose removing performance is improved by its service history, is not exchanged and used, the corrosion product removing performance of the condensate desalting tower is effectively improved.

2. 发明专利

JPS6189592A Device for removing organic matter 失效
标题翻译：移除有机物的装置
公开(公告)号：JPS6189592A
公开(公告)日：1986-05-07
申请号：JP20972984
申请日：1984-10-08
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： FUKUMOTO TOSHIHIKO , OSUMI KATSUMI , USUI NAOSHI , AKAMINE KAZUHIKO
IPC分类号： G21F9/06

3. 发明专利

JPS59186685A Resin transfer system to desalting tower of condensed water 失效
标题翻译：树脂转移系统降解冷凝水塔
公开(公告)号：JPS59186685A
公开(公告)日：1984-10-23
申请号：JP5921983
申请日：1983-04-06
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： USUI NAOSHI , IGARASHI HIROO , OOSUMI KATSUMI , NISHIMURA YUUSAKU , EBARA KATSUYA , YAMAMOTO MICHIYOSHI
IPC分类号： C02F1/42 , B01J47/00 , B01J49/00 , G21C19/30 , G21C19/307
摘要： PURPOSE: To improve iron removing performance of a desalting tower for condensed water by draining water in the stage of transferring resin after backwashing or regeneration by providing a water draining line to the bottom of a wedge wire screen of a desalting tower of condensed water.
CONSTITUTION: Cation exchange resin regenerated with H
2 SO
4 12 in a cation exchange resin tower 8 is mixed in a resin mixing tower 14 with anion exchange resin regenerated with NaOH 13 in an anion exchange resin tower 11 and transferred to a condensed water desalting tower 5 again. Water is drained from a water draining line 21 while transferring the slurry of the resin in water in order to prevent separation of the resin mixture to cation and anion exchange resin by the difference of the specific weight in the condensate desalting tower. The water drained from the water draining line 21 in this case is transferred to a waste disposal system. The amt. of the drain is controlled by the degree of opening of a flow rate control valve 24 disposed to the water draining line 21 by the signal 23 from a water gauge 23.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过在冷凝水脱盐塔的楔形丝网的底部设置排水管，在回洗或再生后转移树脂的阶段通过排水来提高冷凝水的脱盐塔的除铁性能。构成：在阳离子交换树脂塔8中用H 2 SO 4 12再生的阳离子交换树脂在树脂混合塔14中与阴离子交换树脂在阴离子交换树脂塔11中再生的阴离子交换树脂混合，再次转移到冷凝水脱盐塔5。水从排水管线21排出，同时将树脂的浆液转移到水中，以防止冷凝物脱盐塔中的比重差异使树脂混合物与阳离子和阴离子交换树脂分离。在这种情况下，从排水管线21排出的水被转移到废物处理系统。 amt。的排水通过来自水表23的信号23由设置在排水管线21上的流量控制阀24的打开程度控制。

4. 发明专利

JPH06214091A RADIOACTIVITY REMOVING DEVICE IN NUCLEAR REACTOR PRESSURE VESSEL 失效
公开(公告)号：JPH06214091A
公开(公告)日：1994-08-05
申请号：JP465593
申请日：1993-01-14
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： USUI NAOSHI , KATAOKA ICHIRO
IPC分类号： G21C3/30 , G21C5/00 , G21C13/00 , G21D1/00
摘要： PURPOSE:To adsorb a radioactive ion or clad in a nuclear reactor water to reduce the concentration, and reduce the surface does rate of a primary piping or an equipment. CONSTITUTION:A metal oxide 13, for example, TiO2, Al2O3 is installed to a fuel spacer, a channel box 12, a nuclear reactor pressure vessel, and a shroud by flame spraying, a radioactive ion or clad in the reactor water are adsorbed by and adhered to the metal oxide 13, whereby it is removed to reduce the concentration. The radioactivity concentration in the reactor water is reduced to 40%, and accordingly, the dose rate of a primary piping or an equipment surface can be also reduced to 40%.

5. 发明专利

JPS6394193A PRIMARY SYSTEM PIPING OF BOILING WATER TYPE NUCLEAR POWER PLANT 失效
公开(公告)号：JPS6394193A
公开(公告)日：1988-04-25
申请号：JP23891286
申请日：1986-10-07
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： FUKUMOTO TOSHIHIKO , OSUMI KATSUMI , USUI NAOSHI , KOBAYASHI MASATO
IPC分类号： G21D1/00

6. 发明专利

JPS6066197A METHOD OF PURIFYING REACTOR PRIMARY SYSTEM COOLING WATER 失效
公开(公告)号：JPS6066197A
公开(公告)日：1985-04-16
申请号：JP17307183
申请日：1983-09-21
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NISHIMURA YUUSAKU , IGARASHI HIROO , USUI NAOSHI , SATOU YOSHIAKI
IPC分类号： G21C19/307 , G21C19/30

7. 发明专利

JPS5992400A STORAGE FACILITY AT SHUTDOWN 失效
公开(公告)号：JPS5992400A
公开(公告)日：1984-05-28
申请号：JP20211982
申请日：1982-11-19
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： USUI NAOSHI , OOSUMI KATSUMI , YAMAMOTO MICHIYOSHI
IPC分类号： G21F9/12 , G21D1/00 , G21D5/06 , G21F9/00 , G21F9/22

8. 发明专利

JPS5855899A REACTOR COOLANT CLEANUP SYSTEM 失效
公开(公告)号：JPS5855899A
公开(公告)日：1983-04-02
申请号：JP15377881
申请日：1981-09-30
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SHIINA ATSUSHI , YAMAMOTO MICHIYOSHI , OOSUMI KATSUMI , USUI NAOSHI
IPC分类号： G21C19/307 , G21C19/30

9. 发明专利

JPS5834396A REACTOR CLEANING SYSTEM 失效
公开(公告)号：JPS5834396A
公开(公告)日：1983-02-28
申请号：JP13272681
申请日：1981-08-26
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： IGARASHI HIROO , USUI NAOSHI , OOSUMI KATSUMI , MITANI SHINJI
IPC分类号： G21C19/07 , G21C19/30 , G21D1/00

10. 发明专利

JPS56118785A CLEANING SYSTEM FOR CONDENSATION 失效
公开(公告)号：JPS56118785A
公开(公告)日：1981-09-17
申请号：JP2173080
申请日：1980-02-25
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： IGARASHI HIROO , USUI NAOSHI , YAMAMOTO MICHIYOSHI , OOSUMI KATSUMI , MITANI SHINJI
IPC分类号： C02F1/42 , B01J49/00
摘要： PURPOSE:To reduce the introduction of clads into a reactor and to avoid a radioactive contamination which might be caused by an accident of an installation, by splitting corrosion products from a used resin of a desalination tower in a condensation cleaning system of an atomic power plant, and removing the separated corrosion products only. CONSTITUTION:A resin is carried from a desalination tower 1 through a conduit 3 to a separating tower 5. In this transportation, the resin flows as an aqueous slurry through a spiral conduit, so that frictions between each resin grain are increased enough to mechanically split clads. The resin slurry suspending the clads is then carried to the resin-clad separating tower 5, where the slurry is rotated as a whirlpool stream by sloshing water lines 6, 7. Consequently, the clads centrifugally float upwards in the separating tower due to the specific gravity difference between the resin and the clads. The floating clads are discharged to a waste disposer through a draining line 8 attached to the upper part of the tower. On the other hand, the regenerated resin is returned through a regenerated resin carrying line 9 to the spiral conduit for splitting clads in the conduit, and to the separating tower 5 again for separating the split clads.

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