초록 ▼

A point of use water purification system for home use is provided comprising a carbon block filter housed in a self-contained disposable pressure vessel for removing particulates and organic contaminants from water. The filter is provided with a pore-size distribution, a binder and a flow path which

A point of use water purification system for home use is provided comprising a carbon block filter housed in a self-contained disposable pressure vessel for removing particulates and organic contaminants from water. The filter is provided with a pore-size distribution, a binder and a flow path which optimizes filtration performance and enhances microbiological kill rates obtained in a source of radiant energy which is used to kill microorganisms in the filtered water. The source of radiant energy comprises an ultraviolet discharge lamp having an elongate central axis and a diverter for providing a spiral plug flow of water about the discharge lamp. A flow regulator adjusts flow through the system for varying line pressure conditions to ensure adequate exposure of microorganisms to ultraviolet energy. A lamp control circuit conserves power and optimizes ultraviolet output. A diagnostic system includes a filter monitor which provides an automatic indication to the user when the filter has reached its end of life. The diagnostic system includes a radiation source monitor which provides an automatic indication to the user when the UV discharge bulb has malfunctioned. A filter quick-disconnect, a radiation source quick-disconnect and associated power safety interlocks protect the user and facilitate the safe and easy replacement of the disposable filter cartridge and ultraviolet discharge bulb.

대표청구항 ▼

A point of use water treatment system for home use comprising: a pressed carbon block filter for removing particulates and organic contaminants from water, said filter including a filter water inlet and a filter water outlet; and a source of radiant ultraviolet energy for receiving water from said f

A point of use water treatment system for home use comprising: a pressed carbon block filter for removing particulates and organic contaminants from water, said filter including a filter water inlet and a filter water outlet; and a source of radiant ultraviolet energy for receiving water from said filter and killing microorganisms in said water, said source of radiant energy comprising: (i) an elongate ultraviolet discharge lamp having an elongate central axis defining an axial direction; (ii) a vessel defining an open chamber around said elongate ultraviolet discharge lamp, said vessel containing water flow through said source of radiant energy, said vessel including a source water inlet and a source water outlet, said source water inlet receiving water from said filter water outlet; and (iii) directional means proximate said source water inlet for establishing plug-like spiral flow within said open chamber with a substantial axial and tangential component about said elongate ultraviolet discharge lamp, said flow extending between said source water inlet and said source water outlet; whereby filtration, water flow, water quality and microbiological kill rates are enhanced. A point of use water treatment system for home use as claimed in claim 1 further comprising: filter monitoring means for monitoring the amount of water flowing through the filter and providing an indication to a user when the filter has reached end-of-life.