Raw water flow path spacer and spiral membrane element equipped with this

Title:

Raw water flow path spacer and spiral membrane element equipped with this

Document Type and Number:

Japanese Patent JP6353957

Kind Code:

B2

Abstract:

A raw water channel spacer capable of suppressing formation of a concentration polarization layer in a region in the vicinity of a separation membrane in a raw water channel, and a spiral wound membrane element including the same are provided.A raw water channel spacer 40 is formed by superimposing a first yarn row M and a second yarn row N and it alternately includes:a first mesh structure 52 comprises first rectangular meshes 52a to 52c, which are formed of the yarn rows M, N, that are continuous in the extending direction of the second yarn row N;a second mesh structure 61 comprises meshes that are continuous in the extending direction of the second yarn row N such that an interval in the second yarn row is narrower than an interval of the second yarn row N forming the first mesh structure 52.

Inventors:

Oka Saki Tomoha
Yasuhiro Uda

Application Number:

JP2017101262A

Publication Date:

July 04, 2018

Filing Date:

May 22, 2017

Export Citation:

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