KA_3—V气压机在运行中普遍存在着滑油变质,封油跑损的问题,从而机组不能长周期运转。但大都从设备或辅助系统上进行一些设备改造。虽然故障停机次数下降了,运行情况得到了改善。但并未从根本上解决问题。本文仅就 KA_3—V裂化气体压缩机封油跑损问题进行分析,并在操作指标上进行一些探讨。一、KA_3—V轴封结构及原理KA_3—V裂化气体压缩机是西德德马克公司产品,为单缸二段五级。其结构如图1。 KA_3-V air compressor in the operation of the prevalence of oil deterioration, oil running problems, so the unit can not be long-term operation. However, most equipment or auxiliary systems from some equipment transformation. Although the number of downtime down, operating conditions have been improved. But it did not fundamentally solve the problem. This article only on KA_3-V cracked gas compressor oil seal running analysis of the problem, and some operational indicators on the discussion. First, KA_3-V shaft seal structure and principle KA_3-V cracked gas compressor is West Germany mark company’s products for the second single-stage five. The structure shown in Figure 1.