TH32499A - Methods and arrangements for cooling low pressure turbine sections - Google Patents

Abstract

Methods and arrangements for cooling low pressure turbine sections In the method of cooling the low pressure turbine section of the steam turbine (1) is connected in the water / steam cycle (12), the cooler (K ') flows through section (24) of the low pressure turbine section. (2) Especially during empty rotation operations, especially effective cooling. At the same time Take advantage of The heat received in the process, the condensate (K) is discharged from the condenser (4), connected to the back of the steam turbine (1), used as a coolant (K ') where the condensate (K). Radiates the absorbed heat during cooling to the water / steam cycle (12). At this point, a low-pressure turbine section is connected to the coolant line (22, 22 ') where it is next. Still side The outflow of the condenser (4) and in which the heat exchanger (16, 16 ') placed is connected in the water / steam cycle (12).

Claims (1)

1. The method of cooling the low pressure turbine section of the steam turbine (1) is connected in the water / steam system (12) in which the coolant (K \ ') flows through the low pressure turbine section ( 2), especially during the empty rotation operation, the condensate (K) is emptied from The condenser (4) is connected to the back of the turbine, the steam (1) is used as a coolant (K \ ') and at least a partial flow t1, t3 of the coolant (K \'). After the flow through the low-pressure turbine section (2), the first of all Was cooled by tags: