System for independent supply of heat to consumers relying on usage of low-potential heat source and powered from renewable electric energy sources

FIELD: heating. SUBSTANCE: proposed system for independent supply of heat to consumers relying on usage of a low-potential heat source and powered from renewable electric power sources contains a ground heat collection and recovery system including a low-potential heat medium circuit passing through the in-well heat exchangers, a cold supply circuit and the heat pump evaporator, a system of heating and hot water supply including a heat pump capacitor, the heated medium buffer reservoir, a calorifier with two heat exchangers and an electric peak heater, heating and hot water supply circuits, a solar heat collection system including the solar energy trap medium circuit with a solar energy trap and the solar energy trap circuit regulator connected to the heat exchanger of the hot water calorifier through one of the outlets of the crossover valve. Through the second outlet of the crossover valve the solar heat collection system is connected to the heat exchanger integrated in the low-potential heat medium circuit so that to enable transfer of heat to be utilised for reheating the low-potential heat medium prior to delivery into the heat pump evaporator or for recovery of the in-well thermal regime during the non-heating season combined with generation of heat for hot water supply needs with the help of the solar energy trap and utilisation of the cooled wells potential for cooling the premises. The system is additionally equipped with a photovoltaic module, a wind power plant and a microhydro-power plant connected to the heat supply system electrical equipment and performing transfer of energy through the control package. The latter consists of a switching unit, an inverter, a rectifier, a battery, a distributor and a microprocessor control unit. EFFECT: enhanced efficiency of the heat supply system due to usage of solar energy for heat medium reheating during the heating season or for recovery of the in-well thermal regime during the non-heating season combined with generation of heat for hot water supply needs; the heating system independence from the centralised power supply system. 3 cl, 3 dwg