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小机抽真空如何操作？

问答题

2021-12-28 21:12

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正确答案

小机抽真空操作步骤如下：
1）、确认主机真空正常，可以接受小机排汽；
2）、机盘车装置，控制转数为120rpm左右；
3）、投入小机轴封系统；
4）、缓慢开启小机排汽蝶阀旁路阀，建立小机真空；
5）、全开小机排汽电动蝶阀；
6）、全关小机排汽蝶阀旁路阀；
7）、根据真空调整好轴封压力，全面检查操作正确；
操作中如出现主机真空下降过快，应立即停止操作，恢复到操作前的状态，全面查找原因，处理后再进行操作。

试题解析

标签：汽机巡检员考试危货押运员

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