| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hollow fiber membrane dryer that stops the supply of purge air at the resting time of the operation and supplies the purge air immediately at reopening the operation. <P>SOLUTION: In the hollow fiber membrane dryer equipped with a purge air supplying passage 24 allowing a part of dehumidified air to flow along the outer peripheral surface of the hollow fiber membrane, a supplying and stopping part 26 to supply and stop the dehumidified air is installed at the purge air supplying passage 24. In the supplying and stopping part 26, a first elastic membrane 36 to divide a compressed air chamber 30 and a dehumidified air chamber 34, and a second elastic membrane 38 equipped at the dehumidified air chamber 34 are installed at the first elastic membrane 36 side. A partition member 40 where the purge air supply passage 24 is opened at the end face to which the second elastic membrane 38 is attached, and an axis member 44 of which the end part is contacted with the second elastic membrane 38 and of which the other end part is mounted to the first elastic membrane 36 are installed. The axis member 44 presses the second elastic membrane 38 to the direction opened so that a part of the dehumidified air of the dehumidified air chamber 34 flows into the purge air supply passage 24 when the pressure of the compressed air chamber 30 becomes higher than that of the dehumidified chamber 34. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
