公开(公告)号：JP2006239642A

公开(公告)日：2006-09-14

申请号：JP2005061942

申请日：2005-03-07

Applicant: TORAY INDUSTRIES

Inventor： TANAKA SUKEYUKI ,  SAKAI KENJI ,  YOKOGAWA KATSUMI ,  KANAMORI HIROMITSU ,  OKA NAOKI ,  UEHARA MASATSUGU ,  ODAKA YOSHIFUMI

IPC: B01D63/02 ,  B01D65/02 ,  C02F1/44

Abstract: PROBLEM TO BE SOLVED: To provide a dipped type filtering device which enables a running cost reduction by arranging hollow fiber membrane modules in a plurality of stages in an up-and-down direction to improve use efficiency of air for cleaning hollow fiber membranes. SOLUTION: When a cross-sectional area of an air supply portion of the hollow fiber membrane module is S, the hollow fiber membrane modules at least except the highest rung are provided with a through-hole only on an area which corresponds to 0.5S of the central part of the air supply portion. COPYRIGHT: (C)2006,JPO&NCIPI

公开(公告)号：JP2002126467A

公开(公告)日：2002-05-08

申请号：JP2000329847

申请日：2000-10-30

Applicant: TORAY INDUSTRIES

Inventor： KANAMORI HIROMITSU ,  KUMO ICHIRO ,  YOKOGAWA KATSUMI

IPC: B01D63/08 ,  B01D63/10

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and a method for producing separation membrane elements, by which a separation membrane can be withdrawn with a low tensile force and sheet separation membranes free from crimples can be surely formed when the sheet separation membranes are formed from the whole cloth of a rolled separation membrane. SOLUTION: In the apparatus for producing the separation membrane elements, which has a means for withdrawing the separation membrane from the whole cloth of the rolled separation membrane and cutting the withdrawn separation membrane into a prescribed length to form the sheet separation membranes, an air-sucking accumulator for slacking the separation membrane in a U-shaped form is provided between the whole cloth and the cutting means. The method for producing the separation membrane elements is also provided.

公开(公告)号：JP2002102659A

公开(公告)日：2002-04-09

申请号：JP2000303389

申请日：2000-10-03

Applicant: TORAY INDUSTRIES

Inventor： KANAMORI HIROMITSU ,  YOKOGAWA KATSUMI ,  FUKUSHIMA AKIMICHI

IPC: B01D63/10

Abstract: PROBLEM TO BE SOLVED: To provide a production apparatus and method for separation membrane elements with which a separation membrane can be folded double in a prescribed state without any wrinkle before a step of forming a folding line of the double-folded membrane and positioning of the folding line can precisely be performed at a prescribed position and occurrence of scratching of the membrane at the time of folding can be avoided. SOLUTION: The production of separation membrane element is carried out using the separation membrane element production apparatus. The apparatus is provided with a membrane folding means of holding one end of a sheet of a separation membrane and folding the separation membrane double so as to sandwich a flow channel member on a stand, a folding line-forming means for forming the folding line in the folding back end of the separation membrane by a press. The folding line-forming means comprises a folding line guide positioned above the separation membrane, which is folded back while being kept at a prescribed gap from the stand, and moved from the point toward the folded back edge part and a press means for forming the folding line in the separation membrane by pressing the folded back edge at the folded back position after the movement of the folding line guide.