| 摘要 |
PURPOSE: A spiral type reverse osmosis module with multi leafs is provided which increases a quantity of purified water by enhancing filter force. CONSTITUTION: In a conventional spiral type module comprising a filtering part(20) of a composite membrane for guiding filtered clear water to a through hole(11) of a collecting pipe(10) as well as filtering water by winding the collecting pipe, which is hermetically sealed on one side and equipped with a switching valve on another side and have several through holes on the peripheral surface, a plurality of leafs of a composite filtering part with the guide hole connecting to the through hole with the collecting hole are installed. The module can purify a large quantity of water within a short time by shortening the length of a guide hole.
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