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James William Harris

James Jeffrey Harris

A self cleaning filter includes a body ( ), inlet ( ), outlet ( ), flush inlet ( ) and waste outlet ( ). Elements ( ) provide filtration while compressed but are cleaned decompressed. Feed from inlet port ( ), impacts and swirls from an impeller ( ) on moveable plunger ( ) for preliminary centrifugal separation. During filtration plunger ( ) is positioned to open the inlet port ( ), the filtrate port ( ) and compress filtration elements ( ). The swirling feed permeates the filtration elements ( ) and passes filtrate port ( ), filtrate valve ( ), filtrate plenum ( ), and exits the filtrate outlet ( ). Plunger ( ) is moved and cleaning is provided by supplication of pressurized cleaning media to the back flush receiver plenum ( ) via the back flush media inlet ( ). This pressure motivates plunger( ) to close inlet port ( ), filtrate port ( ) and decompress filtration elements ( ). Multidirectional jets ( ) and ( ) of cleaning media exits orifices ( ) and ( ) to flush the filtration elements ( ) in an optimal multidirectional fashion. Waste is discharged from waste outlet ( ).

Integral valved filter

An evaporative process employing an undulating flexible membrane ( ) as an evaporative surface onto which a vaporizing gas ( ) such as, but not limited to, air, contacts a liquid solution ( ) such as, but not limited to, water, and evaporation occurs. The membrane ( ) is supported ( ) with sufficient laxity to permit wavelike undulating motion of the membrane brought about primarily by the evaporative airflow ( ) itself. The differential flexing and motion of the undulating membrane ( ) results in a breaking and peeling away of any normally fouling scaling or plugging solids which have precipitated or accumulated on the membrane surface ( ). The undulation of the flexible membrane ( ) thereby providing a self cleaning action. The self cleaning action of the membrane ( ) assures successful application to evaporative processes with solutions ( ) which are prone to scaling, fouling, plugging or solutes buildup. The undulating membrane surfaces ( ) can be employed for harvesting of solutes or concentration of solutions ( ) in low temperature air ( ) induced evaporative processes. Also, the undulating membrane ( ) evaporative surface provides exemplary service for evaporative cooling processes by enabling the employment of low quality water ( ) as a coolant as well as by reducing or eliminating blow down discharge of concentrated liquid coolant.

Undulating membrane surface for evaporative processes

A heat transfer process for a liquid (5) using counterflow, direct contact with another, immiscible fluid (1), of differing temperature and density, in the presence of a free floating media bed (7). Heat transfer within the liquid (5) occurring as a consequence of direct contact with the immiscible fluid (1) of differing temperature. The counterflow motion a consequence of buoyancy forces resulting from the different densities of the liquid (5) and immiscible fluid (1). The media bed (7) being of a nature preferentially wetted by the immiscible fluid (1), thereby providing a large film type surface area of the immiscible fluid (1) for direct contact heat transfer with the liquid (5). The free floating nature of the media bed (7) resulting from the materials comprising the media being of a density intermediate between that of the liquid (5) and that of the immiscible fluid (1). The free floating media bed (7) being by nature nonplugging and providing enhanced direct contact heat transfer by the extended fluid film surfaces confined therein.

Immiscible, direct contact, floating bed enhanced, liquid/liquid heat

A low temperature process for the dehydration of aqueous glycol solutions using an induced airflow (3) and low temperature thermal sources (4, 21) to reduce the water concentration in aqueous glycol solutions (22). The invention utilizes the ability for air to evaporate water at low vapor pressures and corresponding low vapor temperatures in a direct contacting device (5). The relative vapor pressures of glycol to water at low temperatures assures the preferential vaporization rate of water over that of glycol thereby providing dehydration and effective regeneration of aqueous glycol solutions.

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Golden, CO, United States of America

James William Harris