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1. (WO1999013282) BAFFLE INSERT FOR HEAT EXCHANGERS

Pub. No.:    WO/1999/013282    International Application No.:    PCT/CA1998/000855
Publication Date: Mar 18, 1999 International Filing Date: Sep 10, 1998
IPC: F28D 1/03
F28F 9/02
Applicants: LONG MANUFACTURING LTD.
Inventors: BROOKS, Sean, Terence
Title: BAFFLE INSERT FOR HEAT EXCHANGERS
Abstract:
Baffle inserts (27, 29, 31) or shims are disclosed for controlling the flow circuiting in plate or tube type heat exchangers (10) of the kind having a plurality of stacked, hollow plate pairs (16, 18) or tubes including mating end bosses (26, 28) or areas or spacers having communicating openings (30, 32) formed therein to form a manifold for the flow of fluid through the plate pairs (16, 18). The baffle inserts (27, 29, 31) are located between preselected adjacent end bosses (26, 28) in the area of the end bosses only, to define different flow circuits through the plate pairs (16, 18) or tubes without having to use specially shaped plates or inserting obstructions into the flow passages inside the plate pairs (16, 18) or tubes. A method of using the baffle inserts (27, 29, 31) is disclosed in which the baffle inserts (27, 29, 31) are inserted during preassembly of the heat exchanger (10) prior to the brazing operation.