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Membrane humidifier for fuel cell, comprising multi-channel hollow fiber membranes

A fuel cell and humidifier technology, applied in fuel cells, electrochemical generators, circuits, etc., can solve problems such as flow channel blockage, deterioration, moisture condensation, etc., and achieve the effects of preventing overflow, improving strength and durability

Active Publication Date: 2021-08-06
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case where excessive moisture is supplied in a low flow rate state, the moisture may be condensed so that flow passages in the stack may be clogged, and therefore, a part of the stack may deteriorate

Method used

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  • Membrane humidifier for fuel cell, comprising multi-channel hollow fiber membranes
  • Membrane humidifier for fuel cell, comprising multi-channel hollow fiber membranes
  • Membrane humidifier for fuel cell, comprising multi-channel hollow fiber membranes

Examples

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example

[0066] The membrane humidifier was fabricated using a bundle of 2500 strands of multi-channel hollow fiber membranes, each strand having an outer diameter of 2300 μm and four channels therein of different sizes (inner diameter: 900 μm, 800 μm, 700 μm and 600 μm).

[0067] [regular example]

[0068] A membrane humidifier was fabricated in the same manner as in Example except using 4000 strands of hollow fiber membranes each having only one channel (inner diameter: 900 μm, outer diameter: 1100 μm).

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Abstract

Disclosed is a membrane humidifier for a fuel cell, comprising multi-channel hollow fiber membranes having a plurality of channels in various sizes, thus allowing humidifying performance to be maintained in the case of a high rate of flow and to be decreased in the case of a low rate of flow, and thereby preventing flooding. The membrane humidifier for a fuel cell, according to the present invention, comprises: a middle case in which a plurality of hollow fiber membranes are accommodated; a cap case coupled to the middle case; and a fixing unit in which ends of the plurality of hollow fiber membranes are potted, wherein a plurality of channels are formed in each of the hollow fiber membranes, and the difference between the biggest and smallest inner diameters among the inner diameters of the plurality of channels is 30-600 [mu]m.

Description

technical field [0001] The present disclosure relates to a membrane humidifier for a fuel cell including a multi-channel hollow fiber membrane, and more particularly, to a membrane humidifier for a fuel cell including a multi-channel hollow fiber membrane having channels of various sizes , thereby maintaining humidification performance in a high flow rate state, and reducing humidification performance in a low flow rate state, whereby flooding can be prevented. Background technique [0002] A fuel cell is a power generation unit that combines hydrogen and oxygen to generate electricity. The advantage of this type of fuel cell is that, unlike general chemical cells such as dry cells or storage batteries, electricity can be generated continuously as long as hydrogen and oxygen are supplied, and there is no heat loss, so that the efficiency of the fuel cell is about twice that of an internal combustion engine high. [0003] In addition, the fuel cell directly converts chemica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/04H01M8/04119
CPCY02E60/50B01D69/081H01M8/04149B01D63/031B01D63/033B01D63/04B01D69/082
Inventor 吴瑛奭金京株安雄铨
Owner KOLON IND INC