PHE Plates

Plates are the core heat transfer elements of PHEs, pressed from various metal s...

Overview

Plates are the core heat transfer elements of PHEs, pressed from various metal sheets into different corrugation patterns. The plates form thin rectangular channels for heat exchange. Corrugation patterns include herringbone and washboard types, creating 3D rotating flow that generates turbulence at low Reynolds numbers, with heat transfer coefficients 3-5 times higher than shell-and-tube types. Common plate materials include: stainless steel (SUS304, 316L, 317L), titanium (Ti Gr.1, Ti-Pd), Hastelloy (C276, C22), nickel alloys, 254SMO. Plate thickness is typically 0.4-0.7mm, selected based on media corrosiveness and operating conditions.