Column device used for separation of gas mixture, has fixed spacer that is provided at outer circumferential edge of base so as to protect seal extends over outer circumferential edge of base

摘要

The device has a casing provided with jacket space. The jacket space is provided facing the inner side of the casing. The base (2) is provided with an outer circumferential edge (20). The encircling seal is extended against the inner side of the casing over the outer circumferential edge of the base. A fixed spacer (1) is provided at outer circumferential edge of the base so as to protect the seal extends over the outer circumferential edge of the base.