公开(公告)号：JPH08318137A

公开(公告)日：1996-12-03

申请号：JP15269495

申请日：1995-05-25

Applicant: NOK CORP

Inventor： INAMURA TAMIO ,  FURUKAWA KOICHIRO ,  TAKAHASHI RYOEI

IPC: B01D63/02

Abstract: PURPOSE: To improve the attachability and detachability of a hollow-fiber membrane module main body to and from a housing and to seal the leakage of a liq. flowing outside an outer cylinder into a collecting chamber by pressing the main body toward the holding part of a housing cap with a pressing means. CONSTITUTION: A coil spring 22 is fixed to the periphery of the protrusion 31A of a housing outer cylinder 31 and to the periphery of the column 21B of an adaptor 21, and the adaptor 21 is pressed toward a housing cap 32. Meanwhile, a module main body 2 with a flat packing 15 as a seal member set in the packing grooves 11C and 12D of the caps 11 and 12 of the main body 2 is inserted into the outer cylinder 31. The leakage of a fluid flowing outside an outer cylinder 5 into an inner cylinder 6 is sealed by the packing 15 on the housing cap 32 side.

公开(公告)号：JPH10235160A

公开(公告)日：1998-09-08

申请号：JP7059797

申请日：1997-03-07

Applicant: NOK CORP

Inventor： TAKAHASHI RYOEI ,  HIRATSUKA MASASHI ,  FURUKAWA KOICHIRO

IPC: B01D63/02 ,  B01D65/02

Abstract: PROBLEM TO BE SOLVED: To maintain filtration performance for a long period of time by excluding surely foreign matter piled up on a surface of the film by a method wherein in that which filters a fluid flowing into a case member by making that flow out from an end part of a hollow fiber membrane, an exhaust part which exhausts a fluid flowing into the case member when the hollow fiber membrane is washed, is formed. SOLUTION: A hollow fiber membrane module 1 is equipped with a module principal body 2 and a housing 3, and an inflow opening 4 and an outflow opening 5 of a filtration object fluid are provided to the housing 3. The module principal body 2 is provided wherein many hollow fiber membrane 6 are inserted into a case member 2a equipped with an opening part 2b and an inflow port 2c, and a clearance between an end part of the hollow fiber membrane 6 and the opening part 6 is fixed by sealing with a seal fixing part 7. Then, a bypass 9 as an exhaust part connecting an inside to an outside of the module principal body 2 is formed on a side surface part of the case member 2a so as to pass through the housing 3, and stains and foreign matters which are stuck to and piled on a surface of the hollow fiber membrane 6 are eliminated outside from the bypass 9.

公开(公告)号：JPH11300174A

公开(公告)日：1999-11-02

申请号：JP12812998

申请日：1998-04-23

Applicant: NOK CORP

Inventor： FURUKAWA KOICHIRO

IPC: B01D63/00 ,  B01D63/02 ,  B01D65/00

Abstract: PROBLEM TO BE SOLVED: To obtain a highly reliable hollow-fiber membrane module improved in cleaning effect without deteriorating ease of fabrication and quality. SOLUTION: The module case 2 has a large-diameter part 2a and a small- diameter part 2b. The diameter of the large-diameter part 2a is so set that the packing ratio of the hollow-fiber membrane 3 to be packed is decreased, the region of the large-diameter part 2a is allowed to function as a filtration part, and a space is formed so that the membrane 3 is freely rockable. The diameter of the small-diameter part 2b is set so that the packing ratio of the packed membrane 3 is increased, and a supporting part A for supporting the root of the membrane 3 fixed by a potting member 4 and a sealing and fixing part B with the inner peripheral side fixed by the potting member 4 are provided.

公开(公告)号：JPH0747240A

公开(公告)日：1995-02-21

申请号：JP21214493

申请日：1993-08-05

Applicant: NOK CORP

Inventor： FURUKAWA KOICHIRO

IPC: B01D63/02 ,  B65H55/00 ,  D01D5/24

Abstract: PURPOSE:To facilitate the bundling of hollow yarn membranes and to eliminate the cutting thereof. CONSTITUTION:A hollow yarn membrane 1 is bundled by repeating operation such that the hollow yarn membrane 1 is wound around the peripheral surface of a taking-up member 2 while moved from one end of the taking member 2 to the other end thereof and changed in its direction at the other end on the peripheral surface of the taking-up member 2 to be wound around the taking-up member while moved from the other end of the taking-up member to one end thereof.

公开(公告)号：JP2002143837A

公开(公告)日：2002-05-21

申请号：JP2000344113

申请日：2000-11-10

Applicant: NOK CORP

Inventor： FURUKAWA KOICHIRO ,  INAMURA TAMIO

IPC: C02F1/44 ,  C02F1/28

Abstract: PROBLEM TO BE SOLVED: To provide a water purifying cartridge which is small-sized and has simple structure and in which granular activated carbon can be used and water can be purified satisfactorily by activated carbon treatment. SOLUTION: A housing chamber 23 for housing the granular activated carbon 3 is arranged on the upstream side of a flow path in the circular gap between an inside case part 21 and an outside case part 22. An introduction port 23a is arranged on one end side of the chamber 23 for introducing the untreated water into the chamber 23 and a discharge port 23b is arranged on the other end side for discharging the activated carbon-treated water to an intermediate chamber 24. Another introduction port 21a is arranged on the side surface of the part 21 for introducing the activated carbon-treated water, which is discharged to the chamber 24, into the part 21.