后备系统在煤化工企业大型空分装置群中的作用

The Role of Backup System in Large-scale Air Separation Facility Group of Coal Chemical Industry

大型空分装置群配套后备系统,要求自动化程度高,响应时间控制小于5s,并且要保证安全、稳定和连续性。本文介绍了神华宁煤集团煤制油空分厂后备系统的组成,及后备系统在装置群中的作用和运行中应注意的事项。在保障空分装置稳定外供O_2、N_2,以及维护整个煤制油生产稳定运行所发挥的作用。

The supporting backup system of large-scale air separation facility group requires high degree of automation, response time control is less than 5s, and to ensure safety, stability and continuity. This paper introduces the composition of the backup system of Coal-to-liquid Air Branch Plant, Shenhuan Ningxia Coal Group, the role of the backup system in the facility group and the matters need attention in operation. It can ensure the stable supply of oxygen and nitrogen to the air separation facility and maintain the stable operation of the whole production of coal-to-liquid.