Hollow fiber membrane module, degassing and gas supplying device, inkjet printer, and device for manufacturing carbonated spring

A degassing and gas supplying device for removing gas

• from an objective liquid and supplying gas to the objective liquid, comprising:
• a hollow fiber membrane module comprising a hollow fiber membrane bundle;
• and a collecting member configured to collect first ends of the hollow fiber membrane bundle while maintaining openings of opened end portions of hollow fiber membranes of the hollow fiber membrane bundle,
• wherein the collecting member has a coupling portion configured to couple the collecting member to an installation object in a detachable and liquid-tight manner;
• and
• an objective liquid piping or an objective liquid casing installed with one or more hollow fiber membrane modules,
• wherein the objective liquid piping is a branch pipe having an insertion opening of the hollow fiber membrane module, an objective liquid inlet, and a treatment liquid outlet and,
• wherein the branch pipe has a pipe fitting having at least three openings and an extension pipe coupled to one opening of the pipe fitting,
• at least one of a plurality openings of the pipe fitting opening other than that where the extension pipe is coupled is an insertion opening of the hollow fiber membrane module, and
• a part of the exposed portion of the hollow fiber membrane bundle of the hollow fiber membrane module is placed in the inside of the extension pipe,
• wherein the collecting member of the coupling portion is coupled to the objective liquid piping or the objective liquid casing directly or by using another member in a detachable and liquid-tight manner while an exposed portion of the hollow fiber membrane bundle of the hollow fiber membrane module is inserted into the objective liquid piping or the objective liquid casing.