The unit must be inspected before and after the unit speeds up. Check whether the vibration, rotational sound, cylinder expansion, oil return temperature of each bearing bush, oil flow condition of the oil return window, main oil tank sleeve (sleeve position) sealing pad oil pressure, etc. are normal. After warming up at medium speed, the condenser vacuum, lubricating oil temperature, generator inlet and outlet air temperature, etc. should be adjusted in time. When the speed rises to the adjustment system action speed, it will cause the adjustment door to close. At this time, the speed should be increased to 3000 rpm. When the speed rises to the rated speed, the high-pressure oil pump can be stopped when the oil pressure is checked to be normal. After a comprehensive inspection of the unit, and if there are no abnormalities, the generator well network is required to be loaded. During the loading process, not only the temperature rise rate of the cylinder metal must be monitored, but also the vibration, expansion difference, string shaft, and thrust tile temperature of the unit must be carefully monitored. and other items; timely adjust the water levels of the condenser and deaerator within the normal range, and timely invest in auxiliary equipment such as drain pumps and high-pressure heaters according to the load until the unit load is brought to full load.
What items should be checked, monitored, and adjusted during the process of ramp-up warm-up and grid
2024-09-15 05:39:02
Introduction What items should be checked, monitored, and adjusted during the process of ramp-up warm-up and grid connection and load addition when the steam turbine is started in a cold state? The unit must be inspected before and after the unit speeds up. vibration,
