石化总公司所属企业积极采用微机技术(可编程序调节器、微型计算机)对加热炉进行自控技术改造。至1987年5月,已有67台热负荷在1000万大卡/时以上的加热炉实现了微机控制,提高热效率1～3%,预计每年可节约燃料油12500余吨,此外还有15台1000万大卡/时以下的加热炉也实现了微 Petrochemical Corporation owned enterprises to actively adopt microcomputer technology (programmable regulator, microcomputer) on the furnace for self-control technology transformation. By May 1987, 67 heating furnaces with a heat load of over 10 million kcal / h had achieved microcomputer control and raised thermal efficiency by 1 to 3%. It is estimated that fuel oil can be saved by more than 12,500 tons per year, in addition to 15 units 10 million kcal / hour following the furnace also achieved micro