TUBULAR FURNACE Russian patent published in 2003 - IPC

FIELD: tubular furnaces used in petrochemical and oil producing industries. SUBSTANCE: proposed rotary furnace includes radiant chamber with burners, convective chambers, tubular coils, air preheaters, gas ducts and smoke stack; coil of radiant chamber consists of three rows on either side; it is provided with attached partitions located between first and second rows of tubes from axis of furnace; convective chambers are arranged in single unit provided with air preheaters; they are attached on either side of radiant chamber. EFFECT: reduced overall dimensions of furnace; reduced usage of materials; reduced mounting time; increased volumetric coefficient.