Turbocharger steam pressure interlock issue
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This post was last edited by sxf1028102800 on 2026-2-22 at 19:21. I have a question: The turbine does work to drive the compressor; it uses steam at 3.5 MPa, and the steam output is at 1.0 MPa. Then why is there an interlock set at 0.6 MPa for the turbine’s steam outlet pressure? When the back pressure drops below 0.6 MPa, the turbine stops. I don’t quite understand this. Please help explain, thank you
A turbine is an energy conversion device. It is the conversion of pressure energy into mechanical energy; this mechanical energy does work externally through the main shaft, resulting in a decrease in the pressure at the outlet of the turbine. Setting the interlock pressure is related to the axial force; when the pressure difference exceeds the designed value, it indicates that the axial force is too high, and prolonged operation can lead to equipment damage. For reference.
Excessive working forces at each stage, as well as significant design deviations, can damage the blades. For reference only