| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a system for cooling a high pressure section of a turbomachine. <P>SOLUTION: This system includes a conduit 8 to carry cooling steam from a boiler 2 to a space upstream of a first stage nozzle of the turbomachine. The conduit extends through a housing 20 of the turbomachine and a nozzle diaphragm of the first stage nozzle. The system includes a control valve 6 arranged in the conduit and regulating a flow of the cooling steam. The turbomachine includes a housing, a turbine shaft rotatably supported in the housing, and a plurality of turbine stages located along the turbine shaft and contained within the housing. Each turbine stage includes a diaphragm attached to the housing. The diaphragm comprises a plurality of nozzles. A hole is provided in the diaphragm upstream of a first stage of a plurality of stages for the introduction of the cooling stream. The method of cooling the high temperature section of the turbomachine includes a step of introducing the cooling steam into the turbomachine through at least the one hole. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
