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1. 发明专利

JPS6467206A ELEMENT FOR FILTERING AND DESALTING APPARATUS 失效
公开(公告)号：JPS6467206A
公开(公告)日：1989-03-13
申请号：JP22369587
申请日：1987-09-07
申请人： JGC CORP , KURARAY CO
发明人： ODANO YOSHIAKI , HIGASHIJIMA TAKESHI , OKAMOTO TAKEHIKO
IPC分类号： C02F1/42 , B01D63/02 , B01D63/04
摘要： PURPOSE:To make it easy to handle a filtering and desalting apparatus and to make it possible to reduce the number of towers in the apparatus, by connecting in series a column packed with a granular ion exchange resin to the upper end of a hollow fiber membrane filter module which can be cleaned by means of a reverse air flow. CONSTITUTION:A column 12 packed with a granular ion exchange resin is connected in series to the upper end of a hollow fiber membrane filter module 11 which can be cleaned by means of a reverse air flow and which is of the one end-fixed type or other type, thereby preparing an element 1 for a filtering and desalting apparatus. This element 1 is packed in a vessel such that a filtrate which has passed through a hollow fiber membrane 2 comes into contact with an ion exchange resin bed 3, thereby to prepare a filtrating and desalting apparatus. In the case where a primary condensate in a nuclear reactor is treated, the solid substances suspending (crud) in the condensate are removed by means of the hollow fiber membrane filter module, and subsequently the salts dissolved in the resulting filtrate are removed by means of the ion exchange resin.

2. 发明专利

JPS6467205A FILTER MODULE UNIT FOR HOLLOW FIBER MEMBRANE 失效
公开(公告)号：JPS6467205A
公开(公告)日：1989-03-13
申请号：JP22369487
申请日：1987-09-07
申请人： JGC CORP , KURARAY CO
发明人： ODANO YOSHIAKI , HIGASHIJIMA TAKESHI , KUROSAKA NORIO , WATANABE HIROSHI , OKAMOTO TAKEHIKO , KUSUDO OSAMU
IPC分类号： B01D63/04
摘要： PURPOSE:To efficiently perform cleaning by means of an reverse air flow and to make it possible to design an apparatus which is long in the direction of the length of hollow fibers, by superposing a plurality of hollow fiber membrane filter modules on each other into a unit, and connecting openings of modules of the second and subsequent stages with an opening of the first stage module by means of a water-collecting tube. CONSTITUTION:A large number of hollow fiber membranes 11, 21 are bundled, and one end 12, 22 of each bundle is fixed to prepare hollow fiber membrane filter modules 1, 2. At least two such modules are superposed on each other and united, and an opening 23 of the second stage module 2 and an opening of any subsequent stage are connected with an opening 13 of the first stage module by means of a water-collecting tube 4, thereby allowing the module of each stage to be open to a filtrate chamber. Thus, the filtrates obtained through the modules of the second and subsequent stages are let into the filtrate chamber by the water-collecting tube 4. Accordingly, the apparent effective length of the module unit can be increased, with the effective length of the hollow fiber membranes per se being not changed.

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