Patent ID: 7708811
Filing Date: 2010-05-04
Classification: B01D

Abstract:
1. A degassing apparatus comprising: a reduced-pressure chamber having a through port for flowing a degassing target liquid therethrough; a degassing element, accommodated in the chamber, for passing the liquid therethrough; and a tubular connecting member joined to the chamber at the through port, wherein the degassing element comprises a gas-permeable tube, for passing the liquid therethrough, being covered with a tubular joint piece at an end portion of the gas-permeable tube; the degassing element being fixed to the chamber by heat sealing the connecting member and the joint piece; the connecting member, when being inserted in the through port, having in at least a portion of its outer peripheral surface, a first tapered portion that decreases in diameter toward an interior of the chamber; the through port having, in at least a portion of its inner peripheral surface, a second tapered portion that decreases in diameter toward an interior of the chamber; the connecting member being joined to the chamber with the first tapered portion and the second tapered portion being in contact with each other to provide a sealing structure.