A06B-6082-H215#H511
A06B-6082-H215#H511现场主要存在以下问题:
(1)因循环水泵自身负载较重,起动转矩大,采用全压直接起动方式,启动电流达到了额定电流的4~6倍,启动时对整个电气系统的冲击比较大,对电气系统的平稳运行带来不利影响;
(2)为保证管网中的压力和流量在不同的用水条件下满足生产,需要开三台泵,但是流量是有富裕的,为了保证管网压力和流量的稳定,不得不指派专职生产操作人员巡查管网的压力,并随时调整阀门的开度及泄压溷排水,不仅造成生产操作人员的劳动强度大,而且浪费了大量宝贵的水资源,不符合我国节约用水的理念;
(3)在用水需量较小的时候,电机也全压、全转速运转,造成“大马拉小车”现象,产生大量的电能浪费,同时,导致功率因数降低;
(4)电机一直处于全转速运转状态,造成电机轴承极易出现发热和磨损的现象,夏天时,电机轴承温度高可达到85℃,加速了轴承润滑脂的破坏,磨损的轴承及时更换,加速了电机的维护保养速度,大大地增加了系统的运营成本;
(5)电机轴承的磨损,还造成整个系统运行的噪音增大,对员工的身体健康产生不利影响。
A06B-6082-H215#H511
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