Heat exchange – Flow passages for two confined fluids – Interdigitated plural first and plural second fluid passages
Patent
1994-08-05
1996-01-30
Leo, Leonard R.
Heat exchange
Flow passages for two confined fluids
Interdigitated plural first and plural second fluid passages
165 70, F28F 308
Patent
active
054874246
ABSTRACT:
A plate heat exchanger having a first set of plate assemblies arranged alternately with a second set of plate assemblies in a stack. Each plate assembly has first and second plates which are spaced apart to define a flow path for fluid. The flow paths of the first set of plate assemblies extend in crossing relationship to the flow paths of the second set of plate assemblies. Because of the double wall design of the plate assemblies, any leakage will be vented before being able to corrode through to the other fluid. The plate assemblies have enlarged inlet and outlet openings for fluid to reduce pressure drop and pumping cost. One plate of each plate assembly has a first set of dimples to establish the space between plates and produce turbulence for good heat transfer, and a second set of dimples of reduced height to produce less pressure drop but still produce turbulence.
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Leo Leonard R.
Tranter, Inc.
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