一、概况上海高桥石化公司炼油厂承担了国家下达的繁重的炼油任务,而酮苯车间冷冻机组是炼油装置不可缺少的关键设备之一,为了确保整个炼油装置的安全运行,对冷冻机组这类关键设备的安全性和可靠性就显得非常重要。根据目前国内外科学技术的发展水平以及计算机的广泛应用,一些工业发达国家已用计算机实现了旋转机械自动控制、在线 I. Overview Shanghai Gao Qiao Petrochemical Company refineries assume the heavy oil refining tasks issued by the state, and ketone benzene workshop refrigeration unit is an indispensable oil refining equipment, one of the key equipment, in order to ensure the safe operation of the entire refinery, the refrigeration unit The safety and reliability of the key equipment is very important. According to the current level of development of science and technology at home and abroad as well as the widespread use of computers, some industrialized countries have been using a computer to achieve automatic control of rotating machinery, online