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Hollow yarn membrane module, hollow yarn membrane module unit, and method for producing hollow yarn membrane modules

A technology of fiber membranes and fiber membrane bundles, applied in the field of hollow fiber membrane module devices, can solve the problems that the filtration performance of hollow fiber membrane modules cannot be restored to the expected level, and achieve stable filtration performance, excellent water resistance, alkali resistance and non-toxicity Effect

Inactive Publication Date: 2003-01-22
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This phenomenon is considered to be the reason why the filtration performance of the hollow fiber membrane module disclosed in this document cannot be restored to the expected level even after backwashing.

Method used

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  • Hollow yarn membrane module, hollow yarn membrane module unit, and method for producing hollow yarn membrane modules
  • Hollow yarn membrane module, hollow yarn membrane module unit, and method for producing hollow yarn membrane modules
  • Hollow yarn membrane module, hollow yarn membrane module unit, and method for producing hollow yarn membrane modules

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0201] A cylindrical casing 1 (inner diameter: 194 mm, outer diameter: 216 mm) made of polyvinyl chloride resin, into which 12,000 hollow fiber membranes 2 (outer diameter: 1.3 mm, inner diameter: 0.9 mm) made of polyacrylonitrile resin are inserted ).

[0202] 35 parts by weight of aliphatic polyamine-based curing agent (LST868 H8, produced by Vantico) is mixed with 100 parts by weight of bisphenol F type epoxy resin (LST 868 R8), and the mixture is stirred at 25 °C and desiccated by a vacuum drier. As a result, the resin used for molding the first sealing body 3A and the second sealing body 3B is made. The prepared resin was injected using a tube pump at a rate of 20 g / min to achieve potting, resulting in a hollow fiber membrane module 50 .

[0203] The sealing bodies 3A and 3B are cut radially with a rotary blade of a pick saw type. There is no crack in the cut surface, and the sealing bodies 3A and 3B are not separated from the casing 1 .

example 2

[0211] Cylindrical jacket 1 (inner diameter: 194mm, outer diameter: 216mm, minimum internal cross-sectional area 238cm 2 ), made of polyvinyl chloride resin, into which 12,000 hollow fiber membranes 2 (outer diameter: 1.3 mm, inner diameter: 0.9 mm) made of polyacrylonitrile resin were inserted.

[0212] A potting resin prepared as described below was injected at a rate of 20 g / min using a tube pump, and a hollow fiber membrane module 50 was produced by static potting. Excluding the first sealing body 3A and the second sealing body 3B, the effective membrane area of ​​the hollow fiber membrane 2 at the filter cavity 4 is 150 cm. 2 , the filling rate of the hollow fiber membrane 2 was 54%.

[0213] [Preparation of potting resin]

[0214] Bisphenol F epoxy resin (LST868 R8, produced by Vantico)

[0215] 100 parts by weight

[0216] Aliphatic polyamine-based curing agent (LST868 H8, produced by Vantico)

[0217] 35 parts by weight

[0218] The viscosity of the resin obtaine...

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PUM

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Abstract

A hollow yarn membrane module, wherein into a filter chamber surrounded by a first sealing body having a opening end for a number of hollow yarn membranes forming a hollow yarn membrane bundle, a cylindrical case, and a second sealing body and having a hollow yarn membrane bundle received therein is fed raw water from a raw water feed port formed in the cylindrical case in the vicinity of the second sealing body, and the drain produced during back washing is discharged through a drain hole formed in the second sealing body.

Description

technical field [0001] The invention relates to a hollow fiber membrane module, a hollow fiber membrane module device and a manufacturing method of the hollow fiber membrane module. In more detail, it relates to a hollow fiber membrane module that effectively removes suspended matter deposited in raw water in the hollow fiber membrane module during use by means of backwashing so that its filtration performance can be stabilized, and also relates to Its manufacturing method and its hollow fiber membrane module device. The hollow fiber membrane module of the present invention and the hollow fiber membrane module device using it can be preferably used for filtering raw water, producing drinking water or producing feed water for adding to equipment for producing purified water using reverse osmosis membrane. Background technique [0002] Hollow fiber membrane modules are roughly classified into internal pressure type and external pressure type. [0003] The external pressure h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/02B01D63/04B01D65/00B01D65/02
CPCB01D63/022B01D65/02B01D2321/185B01D2321/04B01D63/024B01D63/021B01D65/00B01D63/023B01D63/046B01D63/02B01D63/0241B01D65/10B01D65/003B01D2313/21B01D2201/304B01D2313/04B01D2313/2011B01D2313/14B01D2313/2061
Inventor 秋本龙夫藤野久昭奥村青児西村哲夫畑野征雄
Owner TORAY IND INC
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