空压机启动故障的分析与处理

通过对英格索兰C55MX3空压机检修后启动振值高跳脱原因分析,排除机械传动和安装工艺因素影响,最后确诊为电气系统老化接触器开路时闪弧形成的强磁干扰造成空压机数据监测值漂移振值高跳脱。对老化的电气元件进行更换后排除了空压机启动跳脱故障,保证空压机的试车成功。     

Study on reliability technology of contactor relay

In this paper, the reliability of contactor relay is studied. There are three main parts about reliability test and analysis. First, in order to analyze reliability level of contact relay, the failure ratio ranks are established as index base on the product level. Second, the reliability test method is put forward. The sample plan of reliability compliance test is gained from reliability sample theory. The failure criterion is ensured according to the failure modes of contactor relay. Third, after reliability test experiment, the analysis of failure physics is made and the failure reason is found.     

小盲斜井防跑车装置的研究与应用

高峰矿深部由于种种原因,目前只能采用小盲斜井串车提升矿石,靠人工装卸车。而在人工装卸车的过程中,一旦发生飞斗事故,轻则造成设备损伤,重则造成人员伤亡。因此,在高峰矿开展小盲斜井防跑车装置研究,设计适合高峰矿深部小盲斜井防跑车装置,对于保证高峰矿深部开采安全、提高综合开采效益具有重要意义。文章重点研究变坡点下20米的挡车器。     

交流接触器与直流接触器的异同及代换使用

接触器分交流接触器和直流接触器,分别专门用于交流电路和直流电路中,在特定的条件下,增设辅助电路后两者可代换使用.