| 摘要 |
PURPOSE:To make a spiral type membrane separator which is free from wrinkling in layer elements by fixing horizontally a water collecting pipe to a means rotated around the water collecting pipe, suspending downward layer constituting bodies, and winding the layer constituting bodies around the water collecting pipe by said rotating means. CONSTITUTION:One end of a permeating liquid spacer 111 is connected first to a hollow water collecting pipe 15 by means of an adhesive, etc. in the stage of winding a layer constituting body 11 on said pipe. When a membrane sealing adhesive 16 is coated on the end parts on the three sides on the 2nd semipermeable membrane 114, 124, 134, the adhesive permeates the spacer 121 of the adjacent layer constituting body 12 and arrives a semipermeable membrane 122 as well. The pipe 15 is horizontally fixed by a rotating means and the layer constituting bodies 11-14 are suspended downward and are wound in this state on the pipe as the pipe rotates axially. The rotating speed is <=5rpm. Tension is applied on the spacer 111 by a tension strand upon completion of the winding to tighten the winding.
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