Patent ID: 6540818
Filing Date: 2003-04-01
Classification: B01D

Abstract:
A hollow fiber membrane dehuimidification device that is characterized by the fact that it is equipped with (a) a housing chamber that has been opened to the atmosphere through a through hole; (b) hollow fiber membranes that have been provided in said housing chamber, and that cause the compressed air that is supplied from one end to the inside to flow through, and at the same time discharge said compressed air from the other end as dehumidified air by discharging the moisture in said compressed air to the outside housing chamber; (c) a reflux route that causes a portion of the dehumidified air that has been dehumidified by said hollow fiber membrane to flow back to said housing as purged air; (d) a first orifice provided on said reflux route, said first orifice provides sole control of purged air being recycled on said reflux route to said housing chamber; and (e) a second orifice provided downstream of said reflux route possesses an opening diameter larger than that of said first orifice.