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LK-48/7.0-0.54型增压透平膨胀机投用以来,多次发生专用油站因故障而跳车时,仪表联锁动作保护,但膨胀机不能停止运转而造成转子和轴瓦烧毁的故障。介绍膨胀机的工艺流程、参数以及紧急切断阀的结构,在分析紧急切断阀阀心受力情况和大小后,得出故障的根本原因为紧急切断阀安装错误,将紧急切断阀转180°安装后故障消除。
LK-48 / 7.0-0.54 Turbocharger Turbine expander put into use, many times for special petrol station hopping due to the fault, the instrument interlock action protection, but the expander can not stop the rotor and the bearing burn malfunction. After introducing the process and parameters of the expander and the structure of the emergency shut-off valve, after analyzing the situation and size of the emergency shut-off valve stem force, the root cause of the failure is that the emergency shut-off valve is installed incorrectly and the emergency shut-off valve is rotated by 180 ° After the failure to eliminate.