Patent ID: 8826903

Claim:
A heat utilization installation, particularly for buildings, especially apartment buildings, comprising: several heat sources ( 2 ), each of said heat sources ( 2 ) having an inlet ( 12 , 13 , 14 , 15 ) and an outlet ( 8 , 9 , 10 , 11 ), each of said heat sources ( 2 ) provided with a jet pump ( 16 , 17 , 18 , 19 ) including a drive nozzle; a heat transport circuit system ( 7 ) for transporting heat from the heat sources ( 2 ) to at least one heat consumer; a single central circulating pump unit ( 21 ) for maintaining a heat carrier circuit flow in the heat transport circuit system ( 7 ) the central circulating pump unit ( 21 ) having a positive pressure side each of the jet pumps ( 16 , 17 , 18 , 19 ) arranged in heat carrier circuit flow ahead of and in heat increasing relationship with a respective one of the heat sources ( 2 ) via said inlet ( 12 , 13 , 14 , 15 ) thereof, each of the jet pumps ( 16 17 18 19 ) having a diffuser (c) a suction connection (b) and a drive nozzle connection (a); the respective inlet ( 12 ; 13 , 14 , 15 ) of each of said heat sources ( 2 ) disposed in series and in heat carrier circuit flow and in direct connection with the diffuser (c) of one of said jet pumps ( 16 , 17 , 18 , 19 ); the respective outlet ( 8 , 9 , 10 , 11 ) of each of said heat sources ( 2 ) directly connected to and in heat carrier circuit flow with the suction connection (b) of one of said jet pumps ( 16 17 18 19 ) the drive nozzle connection (a) of each of the jet pumps ( 16 17 18 19 ) connected in heat carrier circuit flow with the positive pressure side of the central circulating pump ( 21 ); and wherein each jet pump ( 16 , 17 , 18 , 19 ) further comprises a control member as required and for controlling the flow volume through the respective heat source ( 2 ) and the inlet temperature of each of the jet pumps ( 16 , 17 18 19 ), wherein the control member is controllable, by a control unit, whereby each respective heat source ( 2 ) is operated at a predetermined optimum operating point upon activation of the respective jet pump ( 16 , 17 , 18 , 19 ).