FIELD: heating systems.
SUBSTANCE: invention refers to heat engineering and can be used in heat supply systems of domestic, public and industrial buildings and industrial process equipment. Heat supply system includes heat source and at least two-stage heat pump plant installed before heat consumer, capacitor of the last stage of which is included in circulation loop of heat consumer, and evaporator of the first stage is included in circulation loop of heat source, capacitor of the previous stage and evaporator of the next stage are combined in one double-loop heat exchanger.
EFFECT: reducing the power consumed with heat supply system and increasing useful power of electric power generated with combined heat and power production plant.
1 cl, 2 dwg
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