Entegris, Inc.

Alicia Briggs LaForge

Kwok-Shun Cheng

Cha Doh

Robert F McLoughlin

Jieh-Hwa Shyu

John E Pillion

An exchange apparatus comprised of hollow perfluorinated thermoplastic tubes fusion bonded into a perfluorinated thermoplastic material to form unified terminal end blocks is disclosed. The hollow tubes are shaped by plaiting the tubes into cords and thermally annealing the cords to set the bends of the plait. The apparatus can have a housing bonded to the unified terminal end blocks. In use a first fluid enters the hollow tubes at openings in a first unified terminal end block, flows through the lumens of the tubes, and exits the tubes through a second unified terminal end block. A second fluid enters the housing, is separated from the first fluid by the wall of the tubes, and substantially fills the space between the inner wall of the housing and the outer diameters of the hollow tubes. Energy is transferred between the first and second fluids through the tube walls.

Exchange apparatus

An exchange apparatus comprised of hollow thermoplastic tubes infusion bonded into a thermoplastic material is disclosed. In a preferred embodiment the hollow tubes are shaped by plaiting the tubes into cords and then thermally annealing the cords to set the crests and bends of the plait. The cords provide improved flow distribution of fluid about the hollow tube tubes in the exchange apparatus. The exchange apparatus is chemically inert and is useful for cross flow filtration, as well as heat and mass transfer in harsh chemical environments.

This invention relates to an apparatus for conditioning the temperature of a fluid by utilizing a thermoplastic heat exchanger () comprised of a plurality of hollow tubes. The apparatus controls the temperature of a process fluid inside the heat exchanger () via a controller () by adjustment of a control valve () that regulates the flow of an exchange fluid. The apparatus can be used to maintain the temperature of a chemical bath () and also to prepare discreet dispensed volumes of temperature controlled liquid.

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Staten Island, NY, United States of America

Alicia Briggs LaForge