莱卡脱水机“脱水缸”排放故障维修实例分析（型号ASP300S）

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                    <section><section powered-by="gulangu"><section><section><p><img src="image/20201019/1c4c392e000c4671137b1b95d9e60f8a_1.gif" /></p></section></section></section><section powered-by="gulangu"><section><section> <section> <section powered-by="gulangu"><section><section><p>故障现象</p></section></section></section> </section> </section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; 该脱水机的脱水缸试剂排放到第6试剂瓶时，当脱水缸试剂排完后，还一直处于排放状态。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/320175234e2a06efb085491121ccae1b_2.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/1479295031b4f05f9831278914f14e76_3.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section> <section> <section powered-by="gulangu"><section><section><p>故障分析及处理</p></section></section></section> </section> </section></section></section><section powered-by="gulangu"><section><section><p>1、脱水缸在排放过程中，是通过监测脱水缸压力来确定是否排空状态。在整个排放过程中，脱水缸压力从0kpa~36kpa，再降低到5kpa以下，第二次升到36kpa后再降到5kpa以下，当一切压力正常时，设备显示脱水机排空，进入下一个程序。</p></section></section></section><section powered-by="gulangu"><section><section><p>2、根据故障现象，首先根据运行过程中观察脱水缸的运行压力，在脱水缸无任何试剂的情况下进行6号排空测试，发现脱水缸压力为15kpa左右，说明在排放过程中管路存在漏气。</p><p>3、对整个排放管路进行排查，对有堵塞部分的管路、电磁阀进行除蜡处理。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/fbc0b9eb22fbf235d24fd29538fa505e_4.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/35f74bf3d5388f9b4642bb54bad4ac57_5.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/1090211ae4394e3aab785be5833db186_6.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>4、进行排蜡后，可以拆下6号管路的接口，在排放过程中观察是否有气体释放，如果有说明管路畅通。<br  /></p><p>5、观察脱水缸的密封是否老化，在试剂排放过程中，可以用手压住脱水缸的盖子，看压力是否变化，本次故障产生后，用手压住脱水缸的盖子，脱水缸的压力可以上升到36kpa，这说明是密封圈老化引起的漏气，更换后故障排除。</p></section></section></section><section powered-by="gulangu"><section><section> <section> <section powered-by="gulangu"><section><section><p>故障分析结果</p></section></section></section> </section> </section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; 该设备脱水缸密封圈老化引起漏气，导致脱水缸压力异常，进而使设备一直处于排放状态。</p></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section> <section powered-by="gulangu"><section><section><p>欢</p></section></section></section> </section><section> <section powered-by="gulangu"><section><section><p>迎</p></section></section></section> </section><section> <section powered-by="gulangu"><section><section><p>关</p></section></section></section> </section><section> <section powered-by="gulangu"><section><section><p>注</p></section></section></section> </section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section> <section powered-by="gulangu"><section><section><p><img src="image/20201019/4b5a63cdaa96a7dcf5f77ef17aacd49e_7.jpg" /></p></section></section></section> </section><section> <section powered-by="gulangu"><section><section> </section></section></section> </section><section> <section powered-by="gulangu"><section><section><p>关注我们</p><p>一起涨姿势！</p></section></section></section> </section></section></section></section>