HEAT EXCHANGER Russian patent published in 2015 - IPC F28D7/16 

FIELD: heating.

SUBSTANCE: heat exchanger comprises at least the shaped casing with media feed channels and tubular heat exchange elements arranged inside said casing parallel with its lengthwise axis. It differs from know designs in that mixing head is arranged at the casing one end and comprises the oxidizer feed unit, fuel feed unit, two-component prechamber nozzles arranged in the units and on fire bottom. One end of every tubular heat exchange element is secured at said fire bottom so that its inner chamber is connected with the nozzle outlet chamber while its opposite end is arranged in tube plate located in the casing outlet part. In compliance with another version, said tubular heat exchange elements are connected by crosswise webs with segment cutouts to develop crosswise flows in tube space.

EFFECT: reduced spacing between heat exchanger tubes, easier sealing.

2 cl, 4 dwg