Based on the study of random vibration test of 300MW machine unit in thermal power plant, this paper first grasps the direction of the vibration test of the machine unit, analyzes the causes for the random vibration i...Based on the study of random vibration test of 300MW machine unit in thermal power plant, this paper first grasps the direction of the vibration test of the machine unit, analyzes the causes for the random vibration in detail and then proposes the feasible improvement measures according to the influencing factor and the actual situations so as to reduce the frequency of the random vibration, eliminate the potential safety hazard of the machine unit in operation and realize the stable operation of the steam turbine unit in the thermal power plant.展开更多
ZJZ-2 system has the following functions: (1) Real-time on-line sampling and FFT analysis (32 channel); (2) Data aquisition, analysis and storage during start-up and shut-down; (3) Alarming, emergency recognition and ...ZJZ-2 system has the following functions: (1) Real-time on-line sampling and FFT analysis (32 channel); (2) Data aquisition, analysis and storage during start-up and shut-down; (3) Alarming, emergency recognition and fault retrieval; (4) Data aquisition, analysis and storage during daily operation; (5) Recall of historic data; (6) Output of routine reports and tables; (7) Analysis of vibration behaviour: Bode plot, polar plot, spectrum, cascade, waveform, shaft orbit, trend, etc;展开更多
文摘Based on the study of random vibration test of 300MW machine unit in thermal power plant, this paper first grasps the direction of the vibration test of the machine unit, analyzes the causes for the random vibration in detail and then proposes the feasible improvement measures according to the influencing factor and the actual situations so as to reduce the frequency of the random vibration, eliminate the potential safety hazard of the machine unit in operation and realize the stable operation of the steam turbine unit in the thermal power plant.
文摘ZJZ-2 system has the following functions: (1) Real-time on-line sampling and FFT analysis (32 channel); (2) Data aquisition, analysis and storage during start-up and shut-down; (3) Alarming, emergency recognition and fault retrieval; (4) Data aquisition, analysis and storage during daily operation; (5) Recall of historic data; (6) Output of routine reports and tables; (7) Analysis of vibration behaviour: Bode plot, polar plot, spectrum, cascade, waveform, shaft orbit, trend, etc;
