Start step 135 units bearing closed cold water cooling system

135 units 2020 - bearing close cold water cooling system start step 01 - 01 Yang ( Zenith steel thermal power plant) Bearing the cold water closed cooling system before the start of check 1. Check the import and export of induced draft fan for boiler blower side closed cold water valve open state, opened the door of bearing close cold water to the side of the boiler feed water always backwater side door. 2. Check the feed water pump turbine side low circulating pump and drain pump of the condensate pump EH oil cooling water closed door valve open state import and export, opened the door of bearing close cold water to the turbine room always backwater side door. 3. Check the bearing closed cold water tank to ensure water bearing can be opened, such as water level is too low to close around 1800 mm cold water tank emergency repairs the electric door contact master control room requires two in addition to salt water pump. 4. Check the filter a or b side open access manual gate valves in the fully open position system can run normally open side. 5. Check the bearing cold water cooler closed a or b side open access manual gate position is in full open position system can run normally open side. 6. Check the bearing cold water cooler heat exchange circulating water closed circulating water inlet side a or b a side open water manual gate valves in the fully open position. The system can run normally open side. 7. Check the bearing cold water pump oil level is normal closed the valve is in full open position. System run normally open a can. 8. Bearing putting-in-service proactively open closed water cooling system bearing half cold water recirculation manual door closed contact good start up and down bearing closed cold water pump check whether the pressure is normal for system stability bearing cold water recirculation manual closed door check whether small side turbine side close cold water inlet pipe of the boiler turbine rotation to monitor the running status of pump system running normally in DSC interface, and make records.