THERMOSIPHON ELECTRIC WATER HEATER WITH ACCUMULATION TANK Russian patent published in 2019 - IPC F24H1/20 

FIELD: hot water supply.

SUBSTANCE: invention relates to hot water supply and can be used for preparation and supply of water of required temperature to various consumers. Thermosyphon electric water heater with a storage container contains a decorative casing and a hollow accumulation tank with a casing heat-insulated from the outside. Control unit is installed inside the accumulation tank housing vertically with possibility of free circulation of water flow through the inlet and outlet cavities. Working parts of the thermosiphon pipe with heat-insulated walls, the heating element with the protective thermal relay have a common fastening base and are built into the inlet cavity of the thermosiphon pipe through the mounting hole on the lower base of the accumulator tank body with the help of a mounting-and-lock device. Two or more water temperature sensors are built in accumulation tank housing at preset levels. Temperature regulators are connected by series electric circuit to corresponding water temperature sensors, protective thermal relay, heating element and control unit. Cold water feed and heated water intake pipes are communicated with storage chamber bottom and top regions, respectively. Accumulating tank is equipped with circulating pump connected by electric circuit of its drive to control unit. Cavity of inlet branch pipe of circulation pump is hydraulically communicated directly or through additional branch pipe with outlet cavity of thermosiphon pipe. Cavity of outlet pipe is hydraulically communicated directly or through additional branch pipe with upper area of cavity of accumulation tank.

EFFECT: increased efficiency and economy of operation at simultaneous provision of its reliability.

9 cl, 2 dwg