CAJ | 학술논문

在湖南洪江水力发电厂2号机组检修中，采用超声衰减谱法对轴承油系统和调速器系统的汽轮机油的颗粒度进行了分析。结果表明，调速器系统中汽轮机油的颗粒度小于轴承油系统的；从粒径分布可知，调速器系统的油质符合要求，而对于轴承系统中重力油箱需考虑更换过滤器、轴承油箱需排油清污及清理管路等。与显微镜法测量结果对比，在某一范围内，观测颗粒度占比不同，显微镜法的颗粒度不够连续，而超声衰减谱法测量结果误差较小，更符合实际情况。
재호남홍강수력발전엄2호궤조검수중，채용초성쇠감보법대축승유계통화조속기계통적기륜궤유적과립도진행료분석。결과표명，조속기계통중기륜궤유적과립도소우축승유계통적；종립경분포가지，조속기계통적유질부합요구，이대우축승계통중중력유상수고필경환과려기、축승유상수배유청오급청리관로등。여현미경법측량결과대비，재모일범위내，관측과립도점비불동，현미경법적과립도불구련속，이초성쇠감보법측량결과오차교소，경부합실제정황。
In a overhaul of Hongjiang hydropower plant, Hunan Province, the turbine oil from bearing oil system and the gov-ernor system was sampled and the particle size distribution ( PSD) of the turbine oil was measured using a new method ( ultrason-ic attenuation spectrum) in laboratory, and the measurement results were compared with a new turbine oil to analyze the oiliness change. The measurement results show that the particles size of turbine oil in governor system was smaller than that of the bearing oil system;in the view of the particle size distribution, the governor system oil met the requirements, but the filter in gravity tank of bearing system should be replaced and the oil should be released to clean the dirt and oil tube should be clear up. Meanwhile, the measurement results are compared with the microscope observation results, and it was showed that the measured particle sizes by two methods were consistent, but in a certain range, the percentages of particle size were different. The result of microscopic observation was discontinuous probably due to less sampling, which could not reflect the overall particle size distribution condi-tion. The ultrasonic measurement result is smaller in error and more in line with the actual situation than microscope observation results.