Three-conductor and four-conductor system for saving energy in connection with district heat

Abstract

The patent application relates to a district-heat consumer plant which is capable of being linked to a district-heat network and which comprises at least one heat-consumer which is capable of being supplied with heat from the district-heat network, the district-heat consumer plant comprising a port via which the district-heat consumer plant is capable of being linked to a district-heat reflux of the district-heat network, in order to withdraw heat from the district-heat reflux for the purpose of supplying the at least one heat-consumer. The patent application further relates to a district-heat network, to which a district-heat consumer plant is capable of being linked, the district-heat network comprising a district-heat reflux, and the district-heat reflux comprising a port for the district-heat consumer plant, in order to supply the district-heat consumer plant with heat from the district-heat reflux. Lastly, the patent application relates to a district-heat system which comprises a district-heat consumer plant and a district-heat network.

1 . A district-heat consumer plant, which is linked to a district-heat network, comprising:
 at least one heat-consumer which is supplied with heat from the district-heat network; and   a port via which the district-heat consumer plant is linked to a district-heat reflux of the district-heat network, in order to withdraw heat from the district-heat reflux for the purpose of supplying the at least one heat-consumer.   
     
     
         2 . The district-heat consumer plant according to  claim 1 , wherein the district-heat consumer plant comprises a reflux transfer station, in order to withdraw heat from the district-heat reflux via the reflux transfer station. 
     
     
         3 . The district-heat consumer plant according to  claim 1 , wherein the district-heat consumer plant comprises a first heat-exchanger with a primary afflux and with a primary reflux, the primary afflux and the primary reflux of the first heat-exchanger linked to the district-heat reflux, in order to withdraw heat from the district-heat reflux. 
     
     
         4 . The district-heat consumer plant according to  claim 1 , wherein the district-heat consumer plant comprises a port via which the district-heat consumer plant is linked to a district-heat afflux of the district-heat network, in order to withdraw heat from the district-heat afflux. 
     
     
         5 . The district-heat consumer plant according to  claim 4 , wherein the district-heat consumer plant comprises an afflux transfer station, in order to withdraw heat from the district-heat afflux via the afflux transfer station. 
     
     
         6 . The district-heat consumer plant according to  claim 3 , wherein the district-heat consumer plant comprises a second heat-exchanger with a primary afflux and with a primary reflux, the primary afflux linked to a district-heat afflux of the district-heat network, and the primary reflux is linked to the district-heat reflux, in order to withdraw heat from the district-heat afflux. 
     
     
         7 . The district-heat consumer plant according to  claim 6 , wherein the primary afflux and the primary reflux of the second heat-exchanger are linked to the district-heat afflux and to the district-heat reflux via the afflux transfer station. 
     
     
         8 . The district-heat consumer plant according to  claim 6 , wherein the primary reflux of the first heat-exchanger and the primary reflux of the second heat-exchanger are connected to one another, in order to be jointly linked to the district-heat reflux of the district-heat network. 
     
     
         9 . The district-heat consumer plant according to  claim 6 , wherein the primary reflux of the first heat-exchanger and the primary reflux of the second heat-exchanger are linked, separately from one another, to the district-heat reflux of the district-heat network. 
     
     
         10 . The district-heat consumer plant according to  claim 1 , wherein the district-heat consumer plant comprises a heat-consumer system which is supplied with heat recovered from the district-heat reflux. 
     
     
         11 . A district-heat network to which a district-heat consumer plant is linked, the district-heat consumer plant comprising at least one heat-consumer which is supplied with heat from the district-heat network, the district-heat network comprising a district-heat reflux, and the district-heat reflux comprising a port for the district-heat consumer plant, in order supply the district-heat consumer plant with heat from the district-heat reflux. 
     
     
         12 . The district-heat network according to  claim 11 , wherein the district-heat network comprises a district-heat afflux, and the district-heat afflux comprises a port for a district-heat consumer plant, in order to supply the district-heat consumer plant with heat from the district-heat afflux. 
     
     
         13 . The district-heat network according to  claim 11 , wherein the district-heat reflux comprises a line at the port for supplying the district-heat consumer plant with heat from the district-heat reflux, and a line opening of the line is arranged in such a way in the district-heat reflux that the line with the line opening is oriented contrary to a direction of flow of the district-heat reflux. 
     
     
         14 . The district-heat network according to  claim 11 , wherein the district-heat reflux comprises a port with a line for a district-heat consumer plant, in order to route medium cooled by the district-heat consumer plant into the district-heat reflux, and a line opening of the line is arranged in such a way in the district-heat reflux that the line with the line opening is oriented in a direction of flow of the district-heat reflux. 
     
     
         15 . The district-heat system which comprises a district-heat consumer plant according to  claim 1  and a district-heat network according to  claim 11 .