Hollow fiber membrane module

A hollow fiber membrane module comprising:

• a plurality of hollow fiber membranes;
• a case, in an accommodation interior of which the plurality of hollow fiber membranes are accommodated, the accommodation interior being open at both ends;
• and
• a pair of sealing and fixing portions that seal gaps among the plurality of hollow fiber membranes in a state where each of hollow interiors of the plurality of hollow fiber membranes is open on each of one end side and the other end side of the case,
• wherein the case has, on both sides across the plurality of hollow fiber membranes, respectively,
• a first pipe connecting an inside and an outside of the case and serving as a passage for a fluid that flows through exteriors of the plurality of hollow fiber membranes, and
• a second pipe connecting the inside and the outside of the case and serving as a passage for a fluid that flows through the exteriors of the plurality of hollow fiber membranes,
• wherein the hollow fiber membrane module further comprises a holding member provided in the case and configured to hold the plurality of hollow fiber membranes,
• wherein the holding member includes:
• a pair of plate-shaped portions provided to sandwich the plurality of hollow fiber membranes and have a plurality of through holes that serve as passages for a fluid passing through the exteriors of the plurality of hollow fiber membranes, and
• a connection portion connecting the pair of plate-shaped portions, and
• wherein a passage passing from the first pipe to a first plate-shaped portion, which is one of the pair of plate-shaped portions, is formed between the first plate-shaped portion and the case, and a passage passing from the second pipe to a second plate-shaped portion, which is the other of the pair of plate-shaped portions, is formed between the second plate-shaped portion and the case.