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冻干机真空系统的维护及故障诊断

(发布时间:2017/11/22 15:08:24 编辑:admin 浏览次数:

1. 公用工程检查

  • 供电电源正常(3相电源电压应在规定值的±10%以内),接线完整,接地良好;

  • 带水冷却的泵,需检查的项目:冷却水压力(流量),冷却水压差不小于0.1Mpa不大于0.69Mpa,流量不小于4L/min;

  • 带氮气吹扫的的泵,需检查的项目:氮气压力(流量)氮气压力不小于2.5bar不大于6.9bar。


2. 真空泵检查

  • 排气口安装有消音器,严禁排气管堵塞情况下开机;

  • 油泵的油位要求在油位刻度线1/2~2/3处,干泵油位要求在油位上限,罗茨泵油位要求在油位刻度线1/2~2/3处。


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