热注锅炉自动控制系统优化

OPTIMIZATION OF AUTOMATIC CONTROL SYSTEM FOR HEAT INJECTION BOILER

热注锅炉在重油开发公司六-九区稠油油藏注蒸汽开发中得到广泛应用.近年来随着热注锅炉自动化程度的不断提高,自动控制系统在运行过程中,因各种因素导致程序丢失、异常停炉等故障也比较突出,严重影响了燃烧器运行的稳定性和安全性.本文通过对热注锅炉自动化PLC控制程序进行优化,实现程序的本地冗备恢复功能,优化程序增加炉膛压力报警、前吹扫有火报警、开关量断电保持等功能.提高热注锅炉程序运行稳定性,对提升员工维护管理水平和热注锅炉的安全稳定运行具有重要意义.

Heat injection boiler is widely used in steam injection development of heavy oil reservoir in Area 6-9 of Heavy Oil Development Company. In recent years,with the continuous improvement of the automation degreeof the heat injection boiler,various factors resulting in program loss,abnormal shutdown and other failures of au-tomatic control system are also more prominent in the process of operation,seriously affecting the stability andsafety of the burner operation. This thesis optimizes the automatic PLC control program of the heat injection boil-er,realizes the local redundancy recovery function of the program,and increases the functions of furnace pres-sure alarm,front purge fire alarm,switch off power and so on. It is of great significance to improve the mainte-nance and management level of the staff and the safe and stable operation of the heat injection boiler to improvethe operation stability of the heat injection boiler.