Patent ID: 9339767
Filing Date: 2016-05-17
CPC Classification: B01D

Claim Text:
1. A membrane container comprising: a casing that comprises: a membrane container body including a plurality of flow paths arranged along a flow direction of the treated fluid and in parallel to one another, wherein the membrane container body has a shape of a cylinder; wherein water is separated from the treated fluid while the treated fluid passes through the plurality of flow paths; wherein the plurality of flow paths comprises: wherein each of the most upstream portion and the most downstream portion includes a plurality of flow paths; wherein each of the flow paths constituting the most upstream portion extends in an axial direction of the cylinder, and is arranged in a spaced manner around a center axis of the cylinder; wherein each of the flow paths constituting the most downstream portion extends in an axial direction of the cylinder, and is arranged in a spaced manner radially outward of the most upstream portion; wherein a passage-folding portion for reversing the flow direction of the treated fluid is provided between the most upstream portion and the most downstream portion; wherein the treated fluid, after passing through the fluid inlet, is allowed to flow to the most upstream portion constituted by the respective flow paths, to merge at the passage-folding portion, and to flow down to the most downstream portion also constituted by the respective flow paths wherein an intermediate portion in which the flow direction of the treated fluid is reversed by the passage-folding portion at least once is provided between the most upstream portion and the most downstream portion of the plurality of flow paths, and wherein the treated fluid, after passing through the fluid inlet, is allowed to flow from the most upstream portion to the most downstream portion via the intermediate portion by successively passing through the most upstream portion, the intermediate portion, and the most downstream portion in this order.