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本文对东风4型机车冷却水泵机械密封装置漏水问题作简单介绍并分析了产生原因,在多次技改探索的基础上,选用了金属陶瓷-石墨水封的改造方案,获得较为理想的密封效果,使这一惯性故障得到有效控制。
This paper briefly introduces the leakage of the mechanical seal of the cooling water pump of DF4 locomotive and analyzes the reasons for the leakage. Based on the exploration of several technical innovations, the modification scheme of the cermet - graphite seal is selected and the ideal sealing effect is obtained , So that this inertia failure can be effectively controlled.