RECUPERATOR BURNER HAVING FLATTENED HEAT EXCHANGER TUBES

摘要

The invention relates to a robust, highly effective recuperator burner. Said burner comprises at least optionally a combustion chamber for heating operation and is otherwise configured for FLOX® operation. Heat exchanger tubes (16) are provided for preheating combustion air with the recuperator (30) by means of exhaust gas heat in counterflow, having a flattened gap cross section (34) in a heat transfer segment (31) and comprising a nozzle cross section (35) deviating from the gap cross section (34) on the end (33) thereof facing the volume (2).