A DEVICE FOR PREVENTING VIBRATION OF SHAFT IN TOP GAS RECOVERY PLANT

摘要

The present invention relates to a shaft vibration damping device of a low static pressure generator, in particular a vibration detector (40-1, 40-2, installed to detect the shaft vibration of the low static pressure generator 20 and the low static pressure turbine 20-8, 40-3,40-4); Temperature detectors (75-5, 71, 60-1) installed to detect the temperature of the oil circulating between the water bearing bearing and the oil tank (75-4) of the furnace hydrostatic generator (20) and the furnace static turbine (20-8). , 60-2,60-3,60-4); A speed detector 50-1 installed to detect the rotational speed of the high pressure side bearing of the furnace static pressure turbine 20; An oil heater 75-3 for heating the oil in the oil tank 75-4 to maintain a constant temperature when the furnace hydrostatic generator 20 is stopped; An oil cooler 75-1 for cooling the circulating oil pumped by the oil pump 75-2 in a state of being heated by the bearing water friction heat when the furnace static power generator 20 is restarted; And a control unit 30 for controlling the temperature of the circulating oil within a setting range and controlling the rotational speed of the low-pressure turbine 20-8 so as to manage the axial vibration in the setting range when the low-pressure generator 20 restarts. A shaft vibration damping device of a low-pressure generator characterized in that it relates to.