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推力轴瓦是透平机械中的易损零件,它很大程度上决定了设备的运行稳定性、寿命及其可靠性等。因此如何改进推力轴瓦的结构并对其进行优化设计是最大限度提高设备效率的最有效的途径之一。本文以上海电化厂的推力轴瓦为例加以说明。 一、原推力轴瓦的结构 图1是上海电化厂透平机推力轴瓦的结构示意图,这是一种十分典型的斜面—平面结构。这种结构设计不合理,其运行稳定性很差,寿命也不理想,并且在正常工作状态时润滑油的温度接近最高报警温度。
Thrust bearing bush is a fragile part of turbine machinery, which largely determines the operation of the equipment stability, life expectancy and reliability. Therefore, how to improve the structure of thrust bearing and to optimize it is one of the most effective ways to maximize equipment efficiency. In this paper, Shanghai Power Plant thrust bearing as an example to illustrate. First, the structure of the original thrust bearing Figure 1 is the Shanghai Electric Plant turbine thrust bearing schematic, which is a very typical bevel - plane structure. This structure design is unreasonable, its operating stability is poor, life expectancy is not ideal, and in normal working conditions, the temperature of lubricating oil close to the highest alarm temperature.