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Hollow Fiber Membrane Module

A technology of fiber membranes and fiber membrane bundles, which is applied in the field of hollow fiber membrane modules, can solve the problems of uncontrollability and low productivity, and achieve the effects of excellent liquid tightness, efficient manufacturing, and high joint strength

Active Publication Date: 2016-06-08
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the joint strengthening method disclosed in Patent Document 1 requires two times of ultrasonic welding, so the productivity is low, and it cannot be said to be an efficient joint strengthening method.
[0005] In addition, if Figure 7 As shown, the method disclosed in Patent Document 1 is a method of ultrasonically welding the main container 31 and the head 32 at the two positions 33 and 34, but even if there are two ultrasonically welded parts on the side of the main container 31 33 and 34, it is impossible to prevent the blood introduced from the blood introduction port of the head 32 under pressure from infiltrating into the smaller gap 36 between the head 32 and the membrane fixing layer 35

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A hollow fiber membrane bundle made of 9,200 hollow fiber membranes made of polysulfone with an inner diameter of 200 μm and a membrane thickness of 40 μm is inserted into a total length of 285 mm so that both ends protrude 7 mm or more from the end of the main body shell. , The inner diameter of the body is 34.8mm, the inner diameter of the end is 44.2mm, and the outer diameter of the end is 48.2mm. figure 1 Reference numeral 3) on the end faces of the two ends was irradiated with a carbon dioxide laser with an output of 80 W in a predetermined pattern to seal the hollow portion of the end faces of the hollow fiber membrane. Next, install caps on both ends of the main case (refer to Figure 6 Reference numeral 26), the main body shell is rotated with half of the full length of the main body shell as the center axis of rotation, half of the full length is used as the radius of rotation, and the resulting centrifugal force is used to make the inlet port of the treatment...

Embodiment 2

[0053] A hollow fiber membrane bundle made by bundling 16,000 hollow fiber membranes made of polysulfone with an inner diameter of 200 μm and a membrane thickness of 40 μm is inserted into the total length of 285mm, the inner diameter of the body is 45.4mm, the inner diameter of the end is 54.8mm, and the outer diameter of the end is 58.8mm. The hollow part of the end face of the fiber membrane is sealed. Next, in the main shell (see figure 1 Caps are installed at both ends of reference number 3) (refer to Figure 6 ), take half of the full length of the main shell as the central axis of rotation, and use half of the full length as the radius of rotation to rotate the main shell, and use the resulting centrifugal force to make the inlet port of the treatment liquid (refer to figure 1 The reference numeral 1) and the outlet port of the treatment liquid (refer to figure 1 2) The injected polyurethane resin is cured to form a membrane fixing layer at both ends of the main s...

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Abstract

The hollow fiber membrane module provided by the present invention has a structure that is excellent in liquid tightness, has high bonding strength at welded parts, and can be efficiently produced. The hollow fiber membrane module comprises: a hollow fiber membrane bundle (4), a main body case (3) for accommodating the hollow fiber membrane bundle (4), and an inner wall for fixing the hollow fiber membrane bundle (4) to an end of the main body case The film fixing layer (5), and the head (8, 9) with the inlet (6) or the outlet (7) of the liquid to be treated installed at the opening end of the shell. Ultrasonic welding is carried out on the above-mentioned head (8, 9) and the main body shell (3) in the area of ​​at least two positions over the entire circumference, using a common joint as the side of the outer circumference of the main body shell and the inner side of the head over the entire circumference The joint design for ultrasonic welding uses a butt joint as a joint design for ultrasonic welding of the end surface of the main body shell and the inner surface of the head over the entire circumference.

Description

technical field [0001] The invention relates to a hollow fiber membrane module, in particular to a hollow fiber membrane module suitable for blood purification, plasma separator and the like. Background technique [0002] Conventionally, it is well known that a hollow fiber membrane module including a hollow fiber membrane is used for blood purification, for example, blood dialysis. The hollow fiber membrane module has: a cylindrical main body case, a treatment liquid inlet port is provided on the outer peripheral surface of one end of the main body case, and a treatment liquid outlet port is provided on the outer peripheral surface of the other end; a hollow fiber membrane bundle, the hollow fiber membrane The bundle is inserted into the main body shell; the membrane fixing layer fixes the hollow fiber membrane bundle at the end to the inner wall of the main shell, and the head is fixed at the opening end of the main shell. When used for hemodialysis, the dialysate (treatm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D63/02A61M1/18B01D63/00
CPCB01D63/02B01D2313/21A61M1/1623B29C65/08B29C66/1142B29L2031/14B29C66/1222B29C66/1224B29C66/232B29C66/30223B29C66/5432B29C66/73921B29C66/8322B01D63/021B29C66/322B01D2313/04B29C66/71B29C66/1312B29C66/73161B29K2001/00B29K2001/08B29K2023/06B29K2023/12B29K2027/18B29K2033/12B29K2055/02B29K2067/00B29K2069/00B29K2081/06B01D61/243
Inventor 桥本和幸犬塚隼人中野良德中松修
Owner TORAY IND INC
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