| 摘要 |
PURPOSE: To enable the easy exchange of hollow fiber bundles by forming the outer contour of tube bottoms to a polygonal shape, arranging the longitudinal edges adjacent to each other of the outer contours of the adjacent tube bottoms in nearly parallel and tightly coupling the tube bottoms to each other via sealing members. CONSTITUTION: A multiplicity of the hollow fiber bundles 7 respectively having at least one tube bottoms 8 are arranged in a casing. The outer spaces around the hollow fibers, the inner hollow spaces of the hollow fibers and the inner spaces consisting of the spaces formed of one of the tube bottoms 8 and a part of the casing are formed in the casing. At this time, the outer space and the inner space are respectively provided with at least one fluid connection port in the casing. The outer contour of the tube bottoms 8 is formed to the polygonal shape and, at this time, the longitudinal edges 13 adjacent to each other of the outer contour of the adjacent tube bottoms 8 are arranged in nearly parallel with each other and the tube bottoms 8 are tightly coupled to each other via the sealing members 11. Consequently, the easy and rapid exchange of the hollow fiber bundles 7 is made possible.
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