基于PLC的煤气低压保护系统的研究

On the Protecting System of the Low-pressure Coal Gas on the Basis of PLC

为了职工的安全、设备的精良,以确保攀钢热电厂二期热电站生产的顺利完成,本文描述了攀钢热电厂通过S7-300 PLC可编程控制器,完成对攀钢热电站煤气低压保护系统控制功能的整个构思。

For the safety of the staff member and the full use of the equipments, the author of this paper describes the conception about using the S7 -300 PLC programmable console to achieve the low -pressure coal gas protective system, in order to ensure the smooth production of the 2^nd phase of Heat and Power Plant of Panzhihua Iron and Steel Corporation .