COMBINATION WATER AND AIR HEATER Russian patent published in 1995 - IPC

FIELD: power engineering. SUBSTANCE: combination water and air heater has body 3, casing 41, medium heating means 11, cold water supply and hot water discharge system, air supply and discharge system and heating medium additional heating elements. Located in the top part of water heater body 3 is an element for additional heating of medium made as enclosed vessel 1, having branch pipes 8 and 9 for air supply and discharge and pipe connections 4 and 6 for water filling and drain respectively; branch pipe 8 used for air supply is provided with splashing unit 10, and air discharge branch pipe 9 is connected to the air treatment and distribution means. Medium heating means 11 are positioned in the bottom part of water heater body 3, on whose internal surface partition 12 is made; the partition is connected to the bottom of body 3 and its internal side surfaces and separates body 3 into two vessels 13 and 14 communicating in the top part, the vessels are connected respectively to tap water supply pipe connection 16 and drain pipe 25 and mixer 23, and additional overflow pipe 19 located in vessel 13 with pipe connection 16 used for tap water supply. Mixer 23 is connected to cold water pipeline, replaceable overflow (19) and drain (25) pipes. When gas, liquid or solid fuel is used, medium heating means 11 are positioned under water heater body 3, and a partition is installed between body 3 and casing, which forms a horizontal gas conduit above the upper surface of enclosed vessel 1, connected to the vertical gas conduit used to remote the combustion products. EFFECT: improved design. 4 cl, 6 dwg