Must the gas seal cooler be stopped when the compressor is shut down?
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As the title suggests, I believe stopping operation helps to slow down the drop in temperature at the shaft ends and reduces thermal stress during the cooling process after shutdown; I’m not sure though if this is correct. Thank you all, experts!
After the turbine is shut down, steam cannot enter the casing, and the steam seal cooler ceases to function
It has little impact on the shaft end temperature; the main purpose is still to prevent steam from leaking to the lubricating oil side
This has nothing to do with the shaft temperature; it is essential to ensure that steam does not enter the bearing housing