论文部分内容阅读
一、炼油厂仪表自动化的重要作用随着炼油工艺过程的发展,对现代化炼油厂仪表自动化的依赖关系也更为密切. 1.精确分离,保证质量,减少能耗分馏塔是炼油厂消耗能源的主要地方.靠用常规仪表操作不能控制产品规格.操作人员为保证产品合格,在操作中产品质量的控制常常高出质量规格许多,不管由于提高质量规格所造成的能源损失,例如,脱异丁烷分馏塔,塔顶产品规格允许4%的正丁烷含量.然而,操作人员用常规仪表控制做不到这一点,为保证质量起见,常常操作在正
First, the important role of refinery instrumentation automation With the development of the refining process, automation of the modernization of the refinery instrumentation is also more dependent on 1. Accurate separation, to ensure quality, reduce energy consumption fractionation tower is the refinery energy consumption The main places can not be controlled by conventional meter operation Product specifications Operators to ensure product quality control in the operation of product quality control often higher than many of the quality specifications, regardless of due to increased quality specifications caused by energy loss, for example, Fractional distillation column, top product specifications allow 4% n-butane content. However, the operator can not do this with conventional meter control, in order to ensure quality, often operating in positive