AIR HEATER Russian patent published in 2000 - IPC

FIELD: air-heating systems of production areas and amenity rooms. SUBSTANCE: air heater has automated burner unit, air fan-blower and radiation and convective parts of heat exchanger. Radiation part contains netted turbulators, and convective part is made as pipe still. Distributing collector is provided at pipe still input and accumulating collector, at pipe still output. Novelty in air heater are manufacture of hat exchanger radiation part in the form of multi-branch tube and arrangement of the latter inside tubular convective part of heat exchanger. Netted turbulators are mounted with their continuous surface around multi-branch tube and manufactured in the form of interconnected elements shaped as triangles. Correlation of flow section areas along smoke passage of multi-branch tube, distributing collector, pipe still, and accumulating collector, respectively, is selected equal up to 0.8-1.2. EFFECT: enhanced heat power efficiency. 3 cl, 2 dwg