Development of Thrust and Journal Bearings with High Specific Load for Next Generation Steam Turbine
Steam turbine for thermal power plants both for gas turbine combined cycle plants and conventional power plants are now facing strict market demands for high plant efficiency and saving plant initial cost. In these situation, the development of high performance bearing, which needs relatively small amount of lubricant oil and can be operated under high specific load, provide improvements of thermal heat balance due to minimization the bearing loss and cost saving by diminishing the capacity of lubricant oil system, should be one of the important technology for the next generation thermal power plant. In this paper, three application examples of PEEK (polyether-ether-ketone) pad journal and thrust bearing with direct lubricant to steam turbines are suggested and the gains of each case are estimated quantitatively. Plus, the summary of laboratory tests to confirm the primary properties of PEEK pad and bearing tests with full size bearings (14inch journal bearing and 18inch thrust bearing) are addressed.
Steam turbine Bearing PEEK Direct lubricant
Takashi Nakano Yuichiro Waki Kazuhiko Yamashita Takaaki Kaikogi Motohisa Uesato Yutaka Yamada
Steam Turbine Development Group, Steam Turbine Engineering Department, Power Systems Headquarters,Mi Machinery Laboratory, TAKASAGO Research & Development Center,Mitsubishi Heavy Industries, Ltd., Japa RPB & Heavy Industrial Bearing Division, Daido Metal Co., Ltd., Japan
国际会议
2007杭州国际动力工程会议(The International Conference on Power Engineering 2007)
杭州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）