New Technology On High Performance And Reliability Of Mechanical Drive Steam Turbines.

LecturePg. 145-154The new design technology of the mechanical drive steam turbines used in the chemical plant industry is presented. In order to improve the performance of high speed turbines, the new high pressure ratio impulse stage has been developed. Low pressure blade design technology was also established by using the flow analysis technology. With respect to the high reliability of the turbines, the new analysis technology for steam whirl vibration characteristics, direct lubrication bearing, and erosion prevention technology have been developed