| 摘要 |
Method to limit and control rotational loss heating such as occurs in a large steam turbine in the bypass mode of operation under no-load and low-load operting conditions. According to the invention, a portion of the high pressure bypass steam is admitted to the lower pressure sections of the turbine to provide motive fluid for driving the turbine while, simultaneously, a second portion of the high-pressure bypass steam is admitted to the high-pressure section of the turbine in a reverse-flow direction to pass backwards therethrough and limit the rotational loss heating.
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