Patent ID: 6070559
Filing Date: 2000-06-06
Classification: F22B,F24H

Abstract:
An annular tube heat exchanger immersed in a fluid, comprising:a combustion chamber including a combustion burner for providing a source of heat, the combustion chamber including at least one opening;at least one annular heat exchange tube including an inner tube disposed within an outer tube forming a gap therebetween, the outer tube including at least one opening in fluid communication with the opening of the combustion chamber to allow the heat from the combustion chamber to flow between the inner tube and the outer tube, the inner tube having open ends to allow the fluid to pass therethrough; andan exhaust chamber having at least one opening to allow the heat from the outer tube of the at least one annular heat exchange tube to flow therethrough,wherein the heat from the combustion burner causes an increase in a temperature of the fluid.