An Analysis of the Influence of Parameter Variation on Properties of Tilting Pad Bearing Oil Film of Steam Turbine
J. G. Jin, J. W. Yu, A. P. Zhang
College of Energy and Power Engineering, Northeast Dianli University, Jilin132012, China
ABSTRACT: In order to determine the influence of operating parameters when steam turbine operating on the properties of tilting pad bearing oil film of steam turbine, thermal power plant, taking four-pad tilting pad bearing as an example, adopts Pro/E and ANSYS, selects the SST turbulence model to calculate the 3D model, and simulates the influence of the oil inlet pressure, the oil inlet temperature, offset and the speed of journal on the properties of four-pad tilting pad bearing oil film, considering the tile gap and mutual influence between tiles. The conclusion is drawn by comparison: the influence of oil inlet pressure on characteristics of oil film is smaller; the influence of oil temperature, offset and the speed of journal on the properties of tilting pad bearing oil film of steam turbines is bigger; therefore these three parameters should be strictly monitored.
Keywords : Steam turbine; Operating parameters; ANSYS; Tilting tile bearing; Oil film properties.
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