| 摘要 |
The object of the invention is a condensing steam turbine comprising one or more turbine casings, the turbine casing or casings having at least two exhausts separated at the steam side, with the exhausts being connected to condensers (1A, 2A, 3A) utilizing varying input-temperature coolant, said condensers being separated from one another at the steam side and being serially connected to one another at the coolant side. The inventive steam turbine is essentially characterised by that the consecutive exhausts separated at the steam side are arranged such that the choking point and/or exhaust hood temperature limit of the exhausts increases in the direction of the coolant flow. A further object of the invention is a method for extending the unrestricted operating range of condensing steam turbines with the application of the above described solution. |
