釜式换热器壳体轴向变形的计算探讨  

Discussion on the Calculation of Axial Deformation of Shell of Kettle Type Heat Exchanger

作　　者：卜凡 张子倩 任超 曹婷 石红 Bu Fan;Zhang Ziqian;Ren Chao;Cao Ting;Shi Hong(Hualu Engineering&Technology Co.,Ltd.,Xi’an 710000,China;Nuclear and Radiation Safety Center,Ministry of Ecology and Environment,Beijing 100082,China)

机构地区：[1]华陆工程科技有限责任公司,陕西西安710000 [2]生态环境部核与辐射安全中心,北京100082

出　　处：《化工设计》2024年第5期6-11,20,1,共8页Chemical Engineering Design

基　　金：陕西省创新人才推进计划-青年科技新星项目(人才)(2023KJXX-117)。

摘　　要：釜式换热器作为重要的换热器形式之一,具有广泛的应用。《热交换器》(GB/T 151—2014)作为我国换热器设计的重要标准,给出了多种类型换热器的计算方法。但该标准中假设各类型换热器的壳体均为直径不变的圆筒,因此,不适用于釜式换热器的设计。本文将釜式换热器壳体的偏心锥壳等效为正锥壳,基于无力矩理论推导出壳体在压力载荷作用下的轴向变形,得到了壳体轴向变形的一般表达式。根据本文推导结果对标准中壳体刚度相关的系数进行调整,即可按标准中的方法对釜式换热器进行设计。The kettle type heat exchanger,as one of the important types of heat exchangers,has a wide range of applications."Heat Exchangers"(GB/T 151-2014),as an important standard for heat exchanger design in China,provides calculation methods for various types of heat exchangers.However,this standard assumes that the shell of each type of heat exchanger is a cylinder with a constant diameter,which is not applicable to the design of kettle type heat exchangers.In this paper,the eccentric conical shell of the kettle heat exchanger shell is equivalent to a right conical shell.Based on membrane theory,the axial deformation of the shell under pressure load is derived,and the general expression for the axial deformation of the shell is obtained.By adjusting the coefficients related to the shell stiffness in the standard according to the results derived in this paper,the kettle type heat exchanger can be designed according to the methods in the standard.

关 键 词：釜式换热器 偏心锥壳 轴向变形 

分 类 号：TE65[石油与天然气工程—油气加工工程]