District heat transfer device for a building and district heating system for supplying buildings with thermal energy

摘要

The device has a heat exchanger transmitting heat energy from a long-distance heating pipeline to a heating circuit for heating fluid. A memory device, which is in communication with the heating circuit, stores different temperature levels of the heating fluid in layers. A heat pump is arranged within the memory device for increase of temperature gradient between heating fluid layers. The memory device includes a first fluid container for storing heating fluid in first temperature level, which is different from the temperature level of the heating fluid stored in a second fluid container. An independent claim is also included for a district heating system.