带式输送机控制回路改造分析

Analyzation of Control Loop Modification for Belt Conveyer

结合隐患排查,对某发电公司6 k V带式输送机控制回路设计进行梳理,提出该公司6 k V带式输送机控制回路存在交直流共用电缆的设计问题,并以《防止电力生产事故的二十五项重点要求》(国能安全[2014]161号)及保护装置、电力系统二次部分等相关要求为依据,分析交直流共用电缆的危害,详细阐述控制回路中存在的问题,并论述相关的解决措施,以提高设备运行的稳定性,消除不稳定因素,达到设备升级改造的效果,为安全生产提供保障。

The design of the control loop of 6 k V belt conveyor in a power generation company is combed with hidden trouble investigation. The design of the AC and DC common cable in the control loop of the 6 k V belt conveyor in the company is put forward,and the twenty-five key requirements for preventing the accident of electric power production（National safety [2014]No.161） and the protective suit are put forward. The damage of the AC and DC common cable is analyzed,and the existing problems and solutions of the control loop are expounded in detail. Improve the stability of equipment operation,eliminate the unstable factors,achieve the upgrading effect of equipment,and provide guarantee for safety production.