Humidifying membrane module

Abstract

A humidifying membrane module that is reduced in weight and size and can be manufactured at low cost. These are achieved by forming a case in a single tier structure. The humidifying membrane module has a hollow fiber membrane bundle constructed from hollow fiber membranes, the case for receiving the hollow fiber membrane bundle, a first flow passage extending through spaces in the hollow fiber membranes, and a second flow passage extending through the outer wall surface sides of the hollow fiber membranes. The hollow fiber membrane bundle and the case are simultaneously integrated with each other at opposite ends of the hollow fiber membrane bundle by using a potting member for sealing a gap between the hollow fiber membrane bundle and the case. An inlet opening and an outlet opening forforming the first flow passage are formed at the opposite ends, respectively, of the case. An entrance and an exit for forming the second flow passage are formed in side surfaces near the opposite ends, respectively, of the case.

Description

technical field [0001] The present invention relates to a humidification membrane module useful in filtering various substances using a hollow fiber type separation membrane. [0002] In particular, it is useful as a humidification membrane module for fuel cells. Background technique [0003] Conventionally, in the humidification membrane module, the air to be humidified passes through the hollow fiber membrane, and the humidified air passes outside the hollow fiber membrane. [0004] In addition, as such a humidifying hollow fiber membrane module, there is known a structure of a humidifying hollow fiber membrane module for a fuel cell disclosed in JP-A-2004-202478 or JP-A-2005-224719. [0005] according to Figure 5 with Image 6 Such a conventionally known humidification hollow fiber membrane module will be described. [0006] Image 6 for Figure 5 A-A cutaway view. [0007] As shown in the figure, in order to achieve the most efficient water supply, for the hollow f...

AI Technical Summary

Problems solved by technology

[0011] However, since the box body is a two-layer structure of the module box body 500 and the outer box body parts, it not only increases the manufacturing cost, but also increases the weight of the membrane module as a whole, and its shape has to be enlarged accordingly.

[0012] In addition, since the box body has a two-layer structure, it will also increase the assembly process

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