UNIVERSAL CYLINDRICAL CONVECTION TUBE FURNACE FOR LOW-CAPACITY INDUSTRIAL UNITS Russian patent published in 1995 - IPC

FIELD: low-capacity industrial units. SUBSTANCE: universal cylindrical convection tube for low-capacity industrial units has lined body installed on foundation. Lined body has furnace chamber in its lower part, convection annular chamber accommodating product coil, smoke-collecting duct communicated with chimney. The latter is provided with central channel with regulating gate for automatic release of excessive hot smoke gases from furnace directly to chimney; lined annular channel separated by radial solid partitions of heat-resistant material for several independently operating chambers accommodating product coils intended for independent simultaneous heating of heat carriers of different types. Each chamber has individual gas duct in its upper part having regulating gate. All chambers are combined in furnace one body and have common furnace chamber. EFFECT: higher efficiency. 3 cl, 4 dwg