| 摘要 |
PROBLEM TO BE SOLVED: To provide a spiral type film module capable of respectively and exactly extracting various liquids upon their separation, without causing any mixing between concentrated raw water and penetrated water of water collection tubing. SOLUTION: This spiral type film module 1 is provided with a pressure-proof cylindrical case 2 with both ends thereof closed by end plates 3 and 3', a cylindrical film element 4 for separating raw water in the cylindrical case, and water collection tubing 10 for collecting the penetrated water separated in the center of the cylindrical case. One end plate 3' is communicated with an introduction pipe 7 for supplying the raw water into the cylindrical case, while the other end plate 3 is communicated with a discharge pipe 5 for discharging the concentrated raw water. Further, the center of the end plate 3 is provided with a through passage 6 into which is introduced a front end 10a of the water collection tubing 10 projecting from an end face of the film element 4, while a taking-out pipe 12 is screwed from the outside of the end plate 3 into the through passage, thereby using the film element to separate the raw water into the penetrated water and the concentrated raw water. The spiral type film module 1 is so constructed that an extension pipe 11 is connected to the front end 10a of the water collection tubing 10 guided to the through passage 6 of the end plate 3, and then connected to the taking-out pipe 12 after passing through the through passage. COPYRIGHT: (C)2005,JPO&NCIPI
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