| 主权项 |
1. A steam turbine unit comprising
a steam turbine which has a steam inlet region, an exhaust steam region and a blading region which is surrounded by a turbine housing and is arranged axially in between, and a suction device for sucking cooling fluid out of the turbine housing, at least one cooling fluid inlet is which is closeable and openable by a closure member, and which is arranged upstream of the exhaust steam region with respect to the flow direction of action steam flowing through the turbine housing during normal power operation and through which, after a power cut-off, cooling fluid for cooling to a temperature below the operating temperature is introduced into the turbine housing, and a valve through which the cooling fluid flows, wherein the valve has a drainage device for draining the valve, wherein the drainage device comprises a drainage line, and wherein the drainage device has a junction which is connected in terms of flow to the cooling fluid inlet. |
