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US 4,492,084 AGranted
Method for supplying remote heating circuits with heat from a thermal power plant
AssigneeSaarbergwerke Aktiengesellschaft
InventorHeinz Spliethoff
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AssigneeSaarbergwerke Aktiengesellschaft
InventorHeinz Spliethoff
Estimating the term…
Methods by which remote heating circuits are supplied with heat from a thermal power plant by using heat reservoirs located close to the power plant and heating the storage or working medium in a heat exchanger of a heat extraction cycle. The medium is initially heated to a base temperature, for example, when using water, to approximately 95.degree. C., and is further heated immediately prior to being directed into a remote heating circuit to a temperature above 100.degree. C. This two stage heating allows the use of unpressurized heat reservoirs. Additionally, the temperature of the medium is efficiently raised to a level sufficiently to operate the remote heating circuit. Preferably, the medium can further be removed from the reservoirs and heated in a second pass through the heat extraction heat exchanger.
A method for supplying remote heating circuits with heat, which is taken at least partly from a thermal power plant, and utilizing at least one heat reservoir, located close to the power plant, at the beginning of a long distance heating flow and a return line to long distance heating circuits, preferably with water as a storage medium, comprising the steps of heating the storage medium to a constant base temperature by means of a first circulation through a heat exchanger of a heat delivery unit, and raising the temperature of the storage medium to a value of greater than 110.degree. C. immediately before it enters the remote heating circuit by means of a second circulation of the storage medium through said heat exchanger of said heat delivery unit.
Dependencies are inferred from the claim text.