Patent ID: 6206086
Filing Date: 2001-03-27
Classification: F28D,F28F

Abstract:
A shell and tube heat exchanger comprising:A) an elongated shell having first and second flanged ends, a shell fluid inlet and a shell fluid outlet for providing passage of a shell fluid into and out of said shell;B) a removable tube bundle within said shell, comprising a multiplicity of tubes fixed in a first tubesheet at a first end of said tube bundle and fixed in a floating tubesheet at an opposite end of said tube bundle;C) a first head chamber detachably secured to the first flanged end of said shell and in fluid communication with the tubes in said first tubesheet and having a tube fluid inlet, a tube fluid outlet, and a plurality of pass-partitions for directing fluid flow through said tubes;D) a false tubesheet detachably secured to the floating tubesheet and having a multiplicity of passage holes, each aligned with a tube fixed in the floating tubesheet and in fluid communication therewith to direct fluid flow; said false tubesheet having a flange portion extending outwardly beyond said floating tubesheet;E) a second head chamber having a flange detachably secured to the flange portion of said false tubesheet and having a chamber in fluid communication with the passage holes and having at least one pass-partition for directing fluid flow from and through said tubes.