I have a question: emergency shutdown of the turbine. How to disrupt vacuum parking? ?

1. Press the “Turbine Trip” button on the control panel, or move the turbine tripping handle to the “Tripped” position at the turbine head. Check that the indicator lights for “Turbine Trip” and “Main Steam Valve Closed” are on; the unit’s load should drop to 0, and the generator should be disconnected from the system. Inform the electrical and boiler teams that the turbine has been tripped. 2. Check that the high and medium pressure main steam valves as well as the control valves, all extraction steam electric valves and check valves, and the high-pressure exhaust check valve are closed; the speed of the turbine should decrease continuously. 3. Start the circulating lubricating oil pump and the high-pressure standby seal oil pump, and check that the lubricating oil pressure is normal. 4. Disengage the interlock of the vacuum pump, stop the vacuum pump, and open the condenser vacuum break valve. 5. Check whether the high and low pressure bypasses are activated; if they are open, close them manually immediately. 6. Manually close the drain valves on the main and reheat steam pipelines. 7. Check that the electric pump is operating normally. 8. Check that units A and B should trip, and activate the continuous turning gear. 9. Check and adjust the water levels of the condenser and deaerator to keep them within the normal range. 10. Check that the low-pressure cylinder water injection valve opens automatically. 11. Adjust the shaft seal steam pressure in a timely manner according to the condenser vacuum level. 12. As the rotational speed decreases, conduct a thorough inspection and listen carefully to the sounds inside the unit. 13. Once the speed reaches zero, initiate continuous turning of the rotor, and record the coasting time and rotor eccentricity. 14. Complete other related operations for a normal shutdown.

There’s no need to drain water; just stop pumping air. Drainage is to prevent corrosion