HEATER Russian patent published in 1995 - IPC

FIELD: heaters. SUBSTANCE: heater has vertical channels 1 which connect horizontal collectors 4 and 5; there are entrance and exit couplings 6 and 7 at the ends of the collectors. Heater has also vertical pipes 2 and lesser diameter axial pipes 3. Relation of internal diameter of pipe 2 to internal diameter of pipe 3 is equal to 1.1-3.2. Width of annular valve between the pipes equals to 3-20 mm. Heat-exchange intensifiers are disposed in space of pipe 3. They are made in form of an insertion. The latter is made in form of volumetric mesh or rod disposed in align to the pipe. Bundles of wires of plates are attached to the rod. EFFECT: improved efficiency of heating. 5 cl, 7 dwg