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Title:
HOLLOW FIBER MEMBRANE MODULE, WATER PURIFIER CARTRIDGE, AND WATER PURIFIER
Document Type and Number:
WIPO Patent Application WO/2017/164020
Kind Code:
A1
Abstract:
Provided is a hollow fiber membrane module that has a cylindrical case filled with a U-shaped hollow fiber membrane bundle obtained by bundling a plurality of hollow fiber membranes that include a hydrophobic polymer and a hydrophilic polymer, and in which the opening end parts of the hollow fiber membrane bundle are affixed to an opening of the cylindrical case by a potting material, wherein: the outside diameter of the hollow fiber membranes is 350 µm or less; letting S be the cross-sectional area at a location where the cross-sectional area of a cross-section perpendicular to the axial direction of the cylindrical case is the smallest, L the outer peripheral length of a hollow fiber membrane, and N the number of hollow fiber membranes filling the cylindrical case, (2N × L)/S is 6.2 or greater; and the elimination rate of particles with a particle size of 0.3 µm or greater is 99.9% or greater.

Inventors:
YAMADA MASAYUKI (JP)
TAMIYA RYUTA (JP)
UENO YOSHIYUKI (JP)
Application Number:
PCT/JP2017/010306
Publication Date:
September 28, 2017
Filing Date:
March 15, 2017
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D63/02; B01D71/44; B01D71/68; C02F1/28; C02F1/44
Foreign References:
JP2012030204A2012-02-16
JP2002331231A2002-11-19
JP2000334277A2000-12-05
JPH04171029A1992-06-18
JPH04247223A1992-09-03
JPH022833A1990-01-08
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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