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1. 发明专利

JPH05200383A AUXILIARY TYPE FILTRATING AND DESALTING DEVICE 失效
公开(公告)号：JPH05200383A
公开(公告)日：1993-08-10
申请号：JP1074492
申请日：1992-01-24
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SHIOZAWA YOSHIHIRO , NUMAZAKI SEIICHI
IPC分类号： B01D37/02 , C02F1/42
摘要： PURPOSE:To prevent organic impurities from being introduced from an equipment in which powdery ion exchange resin is used by providing a system for discharging the water held in a tower to a waste disposal equipment from a filtrating and desalting tower, supplying raw water not less than the amount of water held in the tower before passing water to perform replacement of water in the tower, draining the water held in the tower and thereafter passing water. CONSTITUTION:A system is provided to a waste disposal system from the outlet pipeline of a filtrating and desalting tower. After the filtrating and desalting tower 20 is back-washed and precoated, an outlet valve 22, an inlet valve 23 of precoat, an outlet valve 24 of precoat, a drain valve 25 of backwash and a vent valve 26 of backwash are closed. An inlet valve 21 is opened and the pressure of the system is exerted. While keeping a stand-by state for holding a precoat layer in a state wherein a holding pump 27 is operated, a valve 31 for replacing water held in the tower is opened to extrude and replace the water held in the tower by raw water. Thereby, organic impurities eluted from resin, fiber such as nylon cut off from a fiber element and the additive of precoat material are discharged to the outside of the system.

2. 发明专利

JPS63119894A CONDENSATE DESALTING DEVICE 失效
公开(公告)号：JPS63119894A
公开(公告)日：1988-05-24
申请号：JP26382186
申请日：1986-11-07
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SHIOZAWA YOSHIHIRO , NUMAZAKI SEIICHI
IPC分类号： G21C19/307 , C02F1/42 , G21C19/30
摘要： PURPOSE:To maintain the concn. of oxygen in a feed water system within a reference value without decreasing the amt. of the water retained in condensate and feed water systems by returning water contg. a large amt. of dissolved oxygen after regeneration of resins to a condenser through a tank opened to the atm. such as condensate recovering tank. CONSTITUTION:Resin strainers 55a-55n for preventing the outflow of the resins in plural units of parallel installed desalting columns 82a-82n loaded with the ion exchange resins to the down stream side are installed between said desalting columns, an inlet main pipe 51 for distributing the condensate to the respective desalting columns and an outlet base pipe 57 for aggregating the treated water in the outlets of the desalting columns. A pipeline 87 to connected the outlet sides of the respective resin strainers to the tank opened to the atm. such as condensate recovering tank 20 is provided. More specifically, the water contg. a large amt. of the dissolved oxygen after the regeneration of the resins is returned to the condenser through the tank opened to the atm. such as condensate recovering tank and, therefore, the maintenance of the concn. of the oxygen in the feed water system at 20-200ppb reference value is permitted and the effect of eliminating the factors to accelerate the corrosion of apparatus on the down stream side of a condensate desalting device such as feed water heater of a nuclear reactor is obtd.

3. 发明专利

JPS60122017A WATER PURIFYING DEVICE 失效
公开(公告)号：JPS60122017A
公开(公告)日：1985-06-29
申请号：JP22691083
申请日：1983-12-02
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KOBAYASHI MASATO , NUMAZAKI SEIICHI , ITOU HISAO , SAITOU TAKASHI , SUMIDA SHIYUUSEI
IPC分类号： B01D37/02 , G21C19/30 , G21C19/307
摘要： PURPOSE:To prevent flowing out of slurry components constituting a precoated layer from a main device previously by connecting plural sets of precoated filtration device in series. CONSTITUTION:A postpositioned filtration device 20 having a similar structure as a filtration device 7 for condensate is installed at the downstream side of the condensate filtration device 7 and in series thereto for the purification of the condensate. By this reason, the filtration and purification capacity of a precoated layer on the filter element 11 in the condensate filtration device 7 is reduced after a certain period with the lapse of the operation time, but the filtration and purification capacity of a precoated layer on the filter element 21 of a postpositioned filtration device 20 at the downstream side maintains its filtration and purification capacity for a long time. Intrusion of discharged slurry component into a feed water heater 9 and the condensate filtration device 7 to a nuclear reactor is prevented by the discharged water at the outlet of a postpositioned filtration device 20.

4. 发明专利

JPH0155887B2 失效
公开(公告)号：JPH0155887B2
公开(公告)日：1989-11-28
申请号：JP17273981
申请日：1981-10-30
申请人： HITACHI LTD
发明人： NISHIMURA SHIGEOKI , ADACHI TETSURO , EBARA KATSUYA , OGAWA TOSHIO , TAKAHASHI SANKICHI , IZUMI KENKICHI , KUBOTA SHOJI , TAKASHIMA YOSHE , NUMAZAKI SEIICHI
IPC分类号： B01D37/02 , G21F9/00 , G21F9/06

5. 发明专利

JPS6329571B2 失效
公开(公告)号：JPS6329571B2
公开(公告)日：1988-06-14
申请号：JP16707581
申请日：1981-10-21
申请人： HITACHI LTD
发明人： ADACHI TETSURO , NISHIMURA SHIGEOKI , EBARA KATSUYA , OGAWA TOSHIO , TAKAHASHI SANKICHI , KUBOTA SHOJI , TAKASHIMA YOSHE , NUMAZAKI SEIICHI , IZUMI KENKICHI
IPC分类号： B01D37/02 , G21F9/00 , G21F9/06

6. 发明专利

JPS6133208A Filter device 失效
标题翻译：过滤器
公开(公告)号：JPS6133208A
公开(公告)日：1986-02-17
申请号：JP15371584
申请日：1984-07-24
申请人： Hitachi Ltd
发明人： NUMAZAKI SEIICHI
IPC分类号： B01D37/02 , B01D65/06 , G21C19/307
CPC分类号： B01D65/02 , B01D2321/04 , B01D2321/162
摘要： PURPOSE: To wash a filter element in a manner so as to avoid an increase in initial differential pressure even if the filter element is not taken out of a filter body by using an acid for back washing.
CONSTITUTION: Only the valves 7, 9, 32 are opened and the other valves are closed to supply a citric acid soln. from a piping 31 to the filter body 3 when the initial differential pressure of the filter element 20 increases to a non-permissible level. The acid soln. washes the element 20 in the body 3. The acid soln. after the washing enters a precoat tank 4 by passing through a precoat return piping 8 and is returned again to the inside of the body 3 through a precoat inlet piping 6 by a precoat pump (a). The above-mentioned operation is repeated several times until the turbidity indicated by a turbidometer 20 installed in the tank 4 does not increase further. The washing liquid is discharged through an org. acid washing liquid outlet piping 34 by opening a valve 33 or through a drain piping 19 by opening a valve 18 or through both thereof.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了防止过滤元件未通过使用酸进行背面洗涤从过滤器体中取出，可以避免初始压差的增加。构成：只有阀门7,9,32打开，其他阀门关闭以供应柠檬酸溶液。当过滤元件20的初始压差增加到不允许的水平时，从管道31到过滤器主体3。酸溶液洗涤体内的元素20。酸溶液。洗涤后通过预涂层返回管道8进入预涂罐4，并通过预涂水泵（a）通过预涂入口管道6再次返回到主体3的内部。将上述操作重复数次，直到由安装在罐4中的浊度计20表示的浊度不再进一步增加。洗涤液通过组织排出。通过打开阀33或通过打开阀18或通过其两者而通过排放管道19来清洗酸洗液体出口管道34。

7. 发明专利

JPS59127690A Optimum driving method for filtering desalinator for condensed water 失效
标题翻译：用于冷凝水过滤脱盐机的最佳驱动方法
公开(公告)号：JPS59127690A
公开(公告)日：1984-07-23
申请号：JP109283
申请日：1983-01-10
申请人： Hitachi Ltd
发明人： ADACHI TETSUROU , OGAWA TOSHIO , EBARA KATSUYA , OOSUMI KATSUMI , NUMAZAKI SEIICHI
IPC分类号： C02F1/42 , G21C19/30 , G21C19/307
摘要： PURPOSE: To reduce the amount of radioactive waste, while prolonging the filtering life of the titled filtering desalinator for condensed water, by making the amount of water flowing through a column in the step of inner filtering larger than the simple average value and the amount of water flowing through a column in the step of surface filtering smaller than said simple average value.
CONSTITUTION: Condensed water is parallelly sent into a plurality of filtering desalination columns 14 by a pump 13 for condensed water. Each column contains many elements in it, and the condensed water is circulated after said elements are precoated with powdery ion exchange resin. The amount of water flowing through the filtering desalination column existing in the step of inner filtering is made larger than the simple average value per one column to perform LV driving with high water circulation, while the amount of water flowing through the filtering desalination column existing in the step of surface filtering is made smaller to perform LV driving with low water circulation. Thus, the elongation of filtering life is contrived under the fixed amount of water circulated as a whole. To adjust the amount of water flowing through the filtering desalination column, a discharge regulator valve 15 provided at the downstream side of each column is used.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了减少放射性废物的数量，同时延长冷凝水过滤脱水剂的过滤寿命，通过在内部过滤步骤中流过柱的水量大于简单平均值，在表面过滤的步骤中流过柱的水小于所述简单平均值。构成：冷凝水通过用于冷凝水的泵13平行地输送到多个过滤脱盐塔14中。每个柱中含有许多元素，并且在所述元素用粉末状离子交换树脂预涂覆之后，冷凝水循环。在内部过滤步骤中存在的过滤脱盐塔中流过的水的量大于每一列的简单平均值，以进行高水循环的LV驱动，而流过过滤脱盐塔的水的量存在于使表面过滤的步骤更小，以低水循环进行LV驱动。因此，在固定量的水循环的条件下，对过滤寿命的延长进行了设计。为了调节流过过滤淡化塔的水量，使用设置在各列下游侧的排放调节阀15。

8. 发明专利

JPS5876146A FILTERING AND DESALTING SYSTEM 失效
公开(公告)号：JPS5876146A
公开(公告)日：1983-05-09
申请号：JP17274181
申请日：1981-10-30
申请人： HITACHI LTD
发明人： NISHIMURA SHIGEOKI , ADACHI TETSUROU , EBARA KATSUYA , OGAWA TOSHIO , TAKAHASHI SANKICHI , IZUMI KENKICHI , KUBOTA SHIYOUJI , TAKASHIMA YOSHIE , NUMAZAKI SEIICHI
IPC分类号： B01J47/02 , B01D37/00 , B01J47/00 , G21F9/00 , G21F9/12
摘要： PURPOSE:To make it possible to reduce the amount of a radioactive waste material, by using a weak acidic ion exchange resin as a powdery ion exchange resin used in a filtering and desalting vessel to enhance clad collecting capacity. CONSTITUTION:In the purifying system of a boiling water atomic power plant, a turbine 2 is driven by steam generated in a nuclear reactor 1 and said steam is recovered as condensed water by a condenser 3 and the condensed water is supplied to the nuclear reactor 1 while treated by a filtering and desalting vessel 4 and a desalting vessel 5. In this case, a powdery ion exchange resin is used in the desalting vessel 4 and a granular ion exchange resin is used in the desalting vessel 5. In addition, as the powdery ion exchange resin, a mixture of a powdery cation exchange resin having a weak ion exchange group such as carboxylic acid group and a strong basic anion exchange resin is used in the desalting vessel 4. By using this mixture, the rising slope of the rise cruve of differential pressure in a filter cylinder is suppressed and clad collecting amount is increased in proportion thereto and the amount of a radioactive waste material can be reduced.

9. 发明专利

JPS5768145A Regenerating device for ion exchange resin 失效
标题翻译：再生离子交换树脂装置
公开(公告)号：JPS5768145A
公开(公告)日：1982-04-26
申请号：JP14206280
申请日：1980-10-13
申请人： Hitachi Ltd
发明人： HAMAMOTO MASAHIRO , NUMAZAKI SEIICHI
IPC分类号： B01J49/00
摘要： PURPOSE: To reduce the installation space for a regenerating device by regenerating the used ion exchange resins by separating the same to cation exchange resins and anion exchange resins respectively and mixing these in one of regeneration towers.
CONSTITUTION: The used ion exchange resins in a mixed bed type desalting tower 1 are transferred via an outlet pipe 14 and an inlet pipe 4 into a cation regenerating tower 2. Anion exchange resins and cation exchange resins are separated with differences in specific gravity by the backwashing water from a backwashing water tank 13. The anion resins in the upper layer are transferred via a transfer pipe 5 and an inlet pipe 6 into an anion regenerating tower 3. In the respective towers 2, 3, the resins are backwashed by the mixed flow of the backwashing water and the pressurizing air from an air storage tank 17, and are regenerated by chemicals. Thence, the anion exchange resins are returned through an outlet pipe 7 and an inlet pipe 4 into the tower 2. Here, these are mixed by the pressurizing air, and while the mixed state is maintained, the resins are transferred via an outlet pipe 8 and an inlet pipe 9 into the tower 1, where they are reused.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了减少再生装置的安装空间，可以通过再生使用的离子交换树脂分别将其分离成阳离子交换树脂和阴离子交换树脂，并将它们混合在一个再生塔中。构成：混合床型脱盐塔1中使用的离子交换树脂经由出口管14和入口管4转移到阳离子再生塔2中。阴离子交换树脂和阳离子交换树脂由比重差异来自反冲洗水箱的反冲洗水13.上层的阴离子树脂通过输送管5和入口管6转移到阴离子再生塔3中。在相应的塔2,3中，树脂通过混合反冲洗水和来自储气箱17的加压空气的流动，并且通过化学品再生。此时，阴离子交换树脂通过出口管7和入口管4返回到塔架2中。这里，这些通过加压空气混合，并且在保持混合状态的同时，树脂经由出口管8 以及进入塔1的入口管9，在那里它们被重复使用。

10. 发明专利

JPS5723899A Radioactive liquid waste processing container 失效
标题翻译：放射性液体废物处理容器
公开(公告)号：JPS5723899A
公开(公告)日：1982-02-08
申请号：JP9750180
申请日：1980-07-18
申请人： Hitachi Ltd , Toray Eng Co Ltd
发明人： NUMAZAKI SEIICHI , HAMAMOTO MASAHIRO , SAKAI HISAHIKO , YAGI SHIGENOBU , KASAHARA MASAO
IPC分类号： C02F1/28 , G21F9/00 , G21F9/06 , G21F9/12

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