HEADER MEMBER, MEMBRANE MODULE, AND METHOD FOR MANUFACTURING MEMBRANE MODULE

摘要

Closed-end tubular header members (9) are mounted to the ends of a hollow fiber membrane bundle (7) and are affixed to the hollow fiber membrane bundle (7) by a sealing material (S) filled into and solidified in the inside of the closed-end header members (9). The header members (9) each comprises: an inlet-side tube section (21) provided to the inlet side into which the hollow fiber membrane bundle (7) is inserted; and an end-side tube section (23) having an inner diameter smaller than that of the inlet-side tube section (21) and provided further toward the end side than the inlet-side tube section (21). A step (St) is formed between the inner surface of the inlet-side tube section (21) and the inner surface of the end-side tube section (23). Annular grooves (21a, 23a, 23b) extending about the axis (L) of the header member (9) are formed in the inner surface of the inlet-side tube section (21) and/or the inner surface of the end-side tube section (23).