HOLLOW FIBER MEMBRANE MODULE AND HOLLOW FIBER MEMBRANE MODULE MANUFACTURING METHOD

To provide an open hole structure that reduces pressure loss generated in an open hole which is provided in a hollow fiber module adhesion converging part.SOLUTION: In a hollow fiber membrane module comprises: a hollow fiber membrane bundle 6 comprising a plurality of hollow fiber membranes; a cylindrical case for accommodating the hollow fiber membrane bundle; a first adhesion converging part 7a which adheres and converges one end of the hollow fiber membrane bundle and blocks the end of the hollow fiber membrane bundle, a plurality of open holes 10 which are provided in the first adhesion converging part and extend in an axial direction of the hollow fiber membrane bundle, and a second adhesion converging part that adheres and converges the other end of the hollow fiber membrane bundle. The open hole is configured from a first flow channel 11a from an inlet, in which a fluid to be treated is introduced, to a depth H, and a second flow channel 11b from a most downstream part of the first flow channel to an outlet of the open hole. The first flow channel is on the same axis as the second flow channel, and the first flow channel is reduced in a diameter thereof between the inlet, in which the fluid to be processed is introduced, and the second flow channel.SELECTED DRAWING: Figure 4 【課題】中空糸膜モジュールの接着集束部に設けられた貫通孔で発生する圧力損失を低減させる貫通孔構造を提供する。【解決手段】複数の中空糸膜からなる中空糸膜束６と、前記中空糸膜束を収容する筒状ケースと、前記中空糸膜束の一方の端部を接着集束し、前記中空糸膜束の端部を閉塞する第１接着収束部７ａと、前記第１接着集束部に具備する前記中空糸膜束の軸方向に伸びる複数本の貫通孔１０と、前記中空糸膜束の他方の端部を接着集束する。前記貫通孔は被処理流体が導入される入口から深さＨまでの第１流路１１ａと、前記第１流路最下流部から前記貫通孔出口までの第２流路１１ｂとで構成され、前記第１流路は前記第２流路と同一軸上にあり、かつ前記第１流路は被処理流体が導入される入口から前記第２流路までの間で縮径することを特徴とする、中空糸膜モジュール。【選択図】図４