国产连续重整装置板壳式换热器压力降控制方法及应用研究  

Pressure drop control method and application research of domestic lamella heat exchanger in continuous reforming unit

作　　者：曹远洋 Cao Yuanyang(SINOPEC Jiujiang Company,Jiujiang,Jiangxi 332004)

机构地区：[1]中国石油化工股份有限公司九江分公司,江西省九江市332004

出　　处：《炼油技术与工程》2021年第7期42-44,共3页Petroleum Refinery Engineering

摘　　要：分析了板壳式换热器换热原理及压力降主要控制因素,结合进料物理性质分析,给出了降低进料侧压力降方法。分析结果表明:降低循环氢量及重整进料量可以降低换热器进料侧压力降,但二者皆受控制;降低板壳式换热器热端入口温度,即末反反应器入口温度,可以降低板壳式换热器进料侧总压力降;换热器热端入口温度每下降1℃,进料侧压力降下降0.31~0.53 kPa,预计第四反应器降温30℃,进料侧总压力降下降9~15 kPa。In this paper,the principle of heat transfer and the main control factors of pressure drop of lamella heat exchanger were studied combining with the analysis of the physical properties of the feed, then the method of reducing the pressure drop on the feed side was given, which supported by test verification. The results showed that the pressure drop on the feed side of the heat exchanger can be reduced by reducing the amount of circulating hydrogen and reforming feed, but both of them were under control;the overall pressure drop on the feed side of the lamella heat exchanger can be reduced by decreasing the inlet temperature of the lamella heat exchanger, that is, the inlet temperature of the final reactor;the pressure drop on the feed side can be reduced by 0.31~0.53 kPa for one degree Celsius decrease in the inlet temperature of the heat exchanger,predicting the temperature of the fourth reactor will drop by 30 ℃, the overall pressure drop at the feed side will drop by 9~15 kPa.

关 键 词：连续重整 板壳式换热器 压力降 热端入口温度 

分 类 号：TE965[石油与天然气工程—石油机械设备]