In the process of turbine operation, when the flow rate, inlet and exhaust parameters, steam extraction volume and so on change, the overall axial thrust value will fluctuate greatly, and even the direction may change. The turbine may also experience accidental operation. Under these working conditions, there may be major abnormalities in various parameters. In the process of turbine design and operation, it is necessary to comprehensively consider the variation of axial thrust under various conditions, control the axial thrust within a reasonable range, and then master the necessary means to balance or reduce abnormal trends, so as to improve the safety and economy of unit operation. Based on the principle of axial thrust of turbine, this paper analyzes the off design characteristics of axial thrust, which can predict the axial thrust of turbine under different conditions and guide the safe and economic operation of turbine.
关键词
透平机械/轴向推力/变工况特性
Key words
turbomachinery/axial thrust/variable working condition characteristic
维普
万方数据