双转子浮动支撑湿蒸汽透平试验台设计开发

摘要

Wet steam test turbine is usually used for studying on dehumidification and optimization of flow pattern, improvement of the aerodynamic performance of wet steam flow path, and data acquisition of vibration characteristic and dynamic stress of long blade on small volume flow. This test turbine is the first domestic experimental test rig on wet steam study. This paper introduces the components, characteristics, rotor and elastic support, casing by special design, bearing box and baseplate of the new test turbine, which has been developed by Dongfang Steam Turbine Co. , Ltd. and the 703 Research Institute, along with an analysis of the key technology of test turbine.%湿蒸汽透平试验台是用于研究去湿效果、优选流型，提高湿蒸汽通流效率、研究长叶片的振动特性和小容积流量工况下长叶片动应力特性，国内还未有此类湿蒸汽透平试验台。本文介绍了东方汽轮机有限公司和703所联合开发的双转子浮动支撑湿蒸汽透平试验台，对试验收台的主要功能和参数、总体特点、轴系及浮动支撑、特殊设计的汽缸、轴承箱及机架进行了阐述，对试验台的主要技术特点和技术难点进行了分析说明。