FIELD: heat engineering.
SUBSTANCE: invention can be used for hot water supply of residential premises for sanitary purposes with the possibility of simultaneous water distribution by several points of distribution—into a bathroom, a shower, a sink and a wash basin. Flow-through gas water heater for several points of hot water distribution consists of a housing, a heat exchanger, a closed combustion chamber, a flue gas discharge fan, gas burner with a gas valve with a proportional change in the flow area depending on the data of the flow rate sensor of cold water entering the water heater, the maximum allowable temperature sensor, water temperature sensor at the outlet of the water heater, automation unit, cold and hot water pipelines. On the hot water pipeline there is a tank for intermediate mixing of cold and hot water and an expansion tank with a mechanism for changing the volume under the action of excess pressure, which is connected to the cold water pipeline.
EFFECT: elimination of manual (mechanical) adjustment of temperature and flow rate of hot water on gas flowing water heater during use of hot water in several points of consumption, providing temperature stability with sharp and significant change in hot water flow rate, elimination of overheating protection actuation and stoppage of water heating at sharp decrease of hot water consumption, pauses in switching on of burner operation between short pauses in hot water consumption, as well as reduction of water heating time at initial consumption.
3 cl, 2 dwg
