HEATING APPARATUS Russian patent published in 2004 - IPC

FIELD: thermal engineering; water heating units for buildings, structures, and apartment houses.

SUBSTANCE: proposed heating apparatus has water casing with jacket enclosing furnace and gas conduit, heat exchanger disposed in top part of apparatus and made in the form of rectangular- or square-section tube bank, difference between sectional areas of heat-exchanger tube and vortex generator relative to sectional area of gas-discharge pipe being 1.2 - 1.6; vortex generators are inserted in tubes on rods and incorporates 2 to 12 members tilted through 90 deg. to combustion gas flow.

EFFECT: augmented heat transfer, reduced temperature of exit gases, facilitated manufacture and removal of combusting products from surfaces, reduced metal input, simplified design, enhanced efficiency.

1 cl, 2 dwg