双燃料导热油炉的首出联锁系统设计  

Design of First Exit Interlocking System for Dual Fuel Thermal Oil Furnace

作　　者：王海群 胡昊 WANG Haiqun;HU Hao(Beijing Aerospace Petrochemical Technology and Equipment Engineering Co.,Ltd.,Beijing 100176,China)

机构地区：[1]北京航天石化技术装备工程有限公司,北京100176

出　　处：《工业炉》2025年第1期56-63,共8页Industrial Furnace

摘　　要：采用一种新的程序架构和编制方法,将首出联锁锁定程序与设备或过程的启停逻辑交叉关联,从而无需对联锁源进行分组锁定。在西门子s7-1500PLC中设计了首出联锁功能块,实现了双燃料导热油炉的首出联锁系统,可以依次锁定两路燃料和风机的停机首要原因,同时避免了无效首出联锁锁定信息的出现。Adopting a new program architecture and programming method,the first out interlock locking program is cross linked with the start stop logic of the equipment or process,thereby eliminating the need for grouping and locking the interlock source.A first out interlock function block has been designed in Siemens s7-1500PLC,which realizes the first out interlock system of dual fuel heat transfer oil furnace.It can sequentially lock the primary reason for the shutdown of two fuel and fan routes,while avoiding the occurrence of invalid first out interlock lock information.

关 键 词：导热油炉 联锁锁定 首出联锁 第一联锁 

分 类 号：TK175[动力工程及工程热物理—热能工程] TP273[自动化与计算机技术—检测技术与自动化装置]