Patent ID: 6910528
Filing Date: 2005-06-28
Classification: F28D,F28F

Abstract:
1. A plate fin heat exchanger for a high temperature, comprising: a container having a support wall, a plurality of channel assemblies disposed in the container, each of said channel assemblies having two tube plates, low-temperature fluid channels being defined between the tube plates of each of said channel assemblies, a low-temperature inlet and a low-temperature outlet being formed between the tube plates on a first side of each of the channel assemblies and providing communication with the low-temperature fluid channels thereof, at least one array of high-temperature fins on an outwardly facing surface of at least one of the tube plates of each of said channel assemblies, the first side of each said channel assemblies being secured to the support wall of the container so that the low-temperature inlet and the low-temperature outlet communicate through the support wall of the container and so that the respective channel assemblies are cantilevered from the support wall, the high-temperature fins defining high-temperature fluid channels between adjacent cantilevered channel assemblies, whereby the cantilevered channel assemblies do not contact one another and contact the container only at the support wall for avoiding accumulation of thermal stresses.