Gas separation membrane module and method of replacing a hollow fiber element

摘要

A gas separation membrane module, comprising: a hollow fiber element having a hollow fiber bundle consisting of a number of hollow fiber membranes and a tube sheet provided at an end of the hollow fiber bundle for binding the hollow fiber membranes; a vessel having an opening through which the hollow fiber element is inserted or removed; a lid member having a gas outlet formed therein and attached to cover the opening of the vessel; and a perforated plate having a plurality of through holes for forming gas channels formed therein, the perforated plate being mounted between the tube sheet and the lid member, the gas separation membrane module performing gas separation by supplying mixed gas to the hollow fiber membranes.

主权项

1. A gas separation membrane module, comprising:
a hollow fiber element having a hollow fiber bundle consisting of a number of hollow fiber membranes and a tube sheet provided at an end of the hollow fiber bundle for binding the hollow fiber membranes; a vessel having an opening through which the hollow fiber element is inserted or removed; a lid member having a gas outlet formed therein and attached to cover the opening of the vessel; and a perforated plate having a plurality of through holes for forming gas channels formed therein, the perforated plate being mounted between the tube sheet and the lid member, the gas separation membrane module performing gas separation by supplying mixed gas to the hollow fiber membranes, wherein the perforated plate has: (a) a flat portion, on a surface closer to the lid, the flat portion configured to generally be in contact with the lid member when mounted; and, (b) a channel forming recess portion, formed in a portion of the surface closer to the lid other than the flat portion, for forming a gas channel; (c) said through hole being formed to extend over the flat portion and the channel forming recess portion in a planar view of the perforated plate, so that the through hole can communicates with the channel forming recess portion.