Precise measures for recovery soon after loss of factory energy 4.1 Boiler side 4.1.1 Just after the boiler MFT, if the fuel pump is in operation at that time, the fuel supply and return manual isolation door need to be closed on the spot promptly. 4.1.two Manually open the economizer recirculation valve on the spot. four.1.three Contact the maintenance personnel to manually bar the empty preheater, as well as the smoke temperature drops to 60℃. . four.1.four As a way to slow down the boiler cooling speed to facilitate restart, the secondary air baffle at the outlet of your air preheater plus the baffle at the flue gas inlet needs to be manually closed. 4.1.five Strengthen the monitoring records with the furnace water pump motor chamber temperature. In
recover partition table rises above 65°C, the factory power recovery unit have to pass the insulation with the furnace water pump motor side when it really is restarted. 4.1.6 Confirm that the fixed row of electric doors are closed and hand-crank, and close the continuous row of manual isolation doors to lessen the loss of steam and water in the boiler. four.2 Turbine side four.two.1 The steam engine should really immediately break the vacuum, shut down in an emergency, open the vacuum breaking valve in spot, shut down the vacuum pump, and get in touch with the machine to open the low-pressure cylinder manhole door. 4.2.2 Check the steam turbine DC oil pump, two tiny machine DC oil pumps, the air side and hydrogen side sealing oil DC oil pumps are self-starting, otherwise get started manually. 4.2.3 Release the standby of every single auxiliary machine and set the handle mode of every single auxiliary machine towards the stop position. four.two.4 Ensure that the steam turbine control power provide is normal, and pay attention to monitoring the lubricating oil pressure, oil temperature, metal temperature of each bearing, oil return temperature, and so on. four.two.five It is actually strictly forbidden to exhaust or drain a big volume of steam towards the condenser. 4.two.6 Manually close the valve that may have soda poured into the steam engine. Manually turn off
recover hard drive partition table heating steam supply. 4.2.7 Immediately after the engine speed reaches zero, execute manual cranking and turn 180 just about every half hour. four.two.eight As a way to save DC energy, the DC oil pump of the compact engine might be stopped after 4 hours of operation. 4.two.9 Following the safety energy supply is energized, verify the closed cooling water shutdown pump to start automatically, otherwise start off manually. Start off the steam turbine AC oil pump, quit the DC oil pump, and place it into standby. Start off two smaller machine AC oil pumps, cease the DC oil pump, and place it into standby. Commence the AC oil pump around the air and hydrogen sides, cease the DC oil pump, and put it into standby. 4.3 Electrical side four.three.1 So that you can preserve the DC bus voltage from the main plant and assure important loads like the key engine DC oil pump, compact machine DC oil pump, and sealed oil DC oil pump, unimportant loads provided by the DC bus ought to be pulled away. Partially discontinued on-site conditions. four.3.two Check that the UPS has automatically switched to battery energy provide, otherwise manual intervention. . 4.3.3 When the energy provide in the generator hydrogen system is interrupted immediately, the hydrogen is discharged to lessen the hydrogen stress to 0.014Mpa. If the AC sealed oil pump cannot be recovered to get a long time, gas replacement is performed. 4.three.4 When the factory energy is lost, the backup power provide and security energy provide must be restored as quickly as you can 'b8U‘O)J