考虑关键换热器备用的原油预热系统清垢周期优化

发布时间：2018-01-21 23:30

本文关键词： 换热网络原油预热系统结垢模型算法优化清垢周期　出处：《化工学报》2016年12期 　论文类型：期刊论文

【摘要】：原油结垢是原油预热过程面临的一个严峻问题,它使换热器的传热系数降低,影响正常的生产过程。应对原油预热过程的结垢问题最普遍的方法就是对换热器进行周期清洁,并优化清洁周期。许多结垢严重的行业都采用换热器备用的方式来减少因换热器离线造成的热回收减小,但原油预热系统尚未考虑,因而进一步考虑了关键换热器的备用来进行原油预热系统清垢周期优化。首先选取关键换热器,再通过模拟退火算法进行清洁周期优化。应用所提出的方法对简化的原油预热系统进行了清垢周期优化,结果显示,考虑换热器备用时所得到的清垢周期经济效益更好。
[Abstract]:Crude oil scaling is a severe problem in the crude oil preheating process, which reduces the heat transfer coefficient of the heat exchanger. The most common way to solve the scaling problem in crude oil preheating process is to clean the heat exchanger periodically. And optimize cleaning cycle. Many industries with serious scaling use heat exchanger standby to reduce heat recovery caused by off-line heat exchanger, but crude oil preheating system has not been considered. Therefore, the reserve of the key heat exchanger is further considered to optimize the cleaning cycle of the crude oil preheating system. Firstly, the key heat exchanger is selected. Then the cleaning cycle is optimized by simulated annealing algorithm. The results show that the proposed method is used to optimize the cleaning cycle of the simplified crude oil preheating system. Considering the heat exchanger reserve, the scale removal cycle economic benefit is better.
【作者单位】：中国石油大学(北京)新能源研究院;西安热工研究院有限公司;中国石油大学(北京)化工学院;
【基金】：国家自然科学基金项目(21306228)~~
【分类号】：TE965
【正文快照】： 3中国石油大学(北京)化工学院,北京102249)引言换热器是食品和石油化工等行业中广泛使用的热交换设备,在实际生产中大部分换热设备都存在不同程度的结垢问题。污垢引起的主要问题源于它对换热设备的水力和热力性能的影响。换热器在运行过程中,由于流体中污垢的沉积或者金属受

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