SPIRAL FILM ELEMENT, AND SPIRAL FILM-FILTRATION DEVICE HAVING THE SAME

摘要

Provided are a spiral film element capable of recovering electric power to be used, satisfactorily, and a spiral film-filtration device having the element. The spiral film-filtration device comprises a power-generating unit (such as a coil (25)) for generating an electric power with a liquid, and a power-outputting unit (39) for outputting the electric power supplied from the power-generating unit, in a wired or wireless manner. As a result, the electric power, which is generated in the power-generating unit by using the liquid (such as raw water, filtered water or condensed water), can be outputted in the wired or wireless manner from the power-outputting unit (39). Thus, the electric power outputted from the power-outputting unit (39) can be used in an electric part disposed outside or can be stored in a storage unit disposed outside, so that the electric power used can be satisfactorily recovered.