["四级新氢压缩机开机前氮气置换的问题",,"氮气置换的时候，肯定是在一级入口前冲入低压氮，然后在四级出口排放，现在有个问题想问，置换的时候盘车吗？卸荷器开到零吗？级间返回前开吗？","아니요！卸荷器在零位置，返回线不打开","如果有几次开关级间返回线，是不是效果更好？","마지막 한 단계는 열 수 없겠죠？万一阀门泄露不就串压啦！","저는 문제없다고 생각해요啊！出口单向阀要是泄露，怎么也能串到前一级毕竟负荷为零啊。","또는 열 수 있어！우리 일상 운영에서는 항상 열려있어요！","감사합니다！知道啦！停机的顺序是啥样？先从后往前逐级地打开返回线线，再将负荷降到零，最后停机，这样做对吗？","그리고 시작할 때 최대한 도로를 돌려서 교체가 없 yal；回路也应该全部打开，卸荷器停机时状态就是零负荷所以不用考虑","하ydrogen压机和氯压机刚刚开始了解啊谢谢啊"

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