Patent Number: 6,804,965

Title: Heat exchanger for high purity and corrosive fluids

Abstract: A heat exchange apparatus (10, 10, 10b) for selectively heating and/or cooling a process fluid (38). A process fluid tubing 14 is wrapped around a primary thermally conductive cylinder (12) having a spiral groove (24) therein adapted for closely accepting the process fluid tubing (14) and increasing the area in thermal contact therebetween. The process fluid tubing (14) is a generally chemically inert tubing. The spiral groove (24) supports the process fluid tubing (14) such that the process fluid tubing (14) can be bent in a radius smaller than the natural minimum bend radius of the process fluid tubing (14). Various embodiments have a cooling apparatus (26, 26a) for cooling the process fluid (38). The cooling apparatus (26, 26a) has a outer thermally conductive cylinder (16) or an outer thermal reservoir (50) cooled alternatively by coolant fluid (44) passing through cooling fluid tubing (18), by a plurality of thermoelectric modules (54), or by a combination thereof.

Inventors: Abras; Alexei D. (Livermore, CA)

Assignee: Applied Integrated Systems, Inc.

International Classification: F25B 21/02 (20060101); F28D 7/00 (20060101); F28D 7/02 (20060101); F25D 31/00 (20060101); F25B 021/02 (); F28D 007/12 (); F28F 001/14 (); F28F 001/36 (); F28F 003/12 ()

Expiration Date: 10/19/2021