特殊形式浮头换热器管板强度计算方法  

Strength Calculation Method on Tubesheet of Special-structured Floating-head Heat Exchanger

作　　者：袁振邦[1] 加万里[2] 

机构地区：[1]中石化宁波工程公司,浙江宁波315103 [2]西安航天动力试验技术研究所,陕西西安710100

出　　处：《压力容器》2016年第5期26-33,共8页Pressure Vessel Technology

摘　　要：我国现行的换热器标准GB/T 151仅适用于固定端为a型连接的浮头式换热器管板计算,对于b型管板,则需按JB/T 4732附录Ⅰ计算。但该方法涉及一组十一元一次方程组,求解非常困难。通过对管板力学原理的研究,建立了一组较为简单的三元一次力学方程组,大大简化了计算过程,在此基础上,对该方程组的系数矩阵进行了进一步的归类和简化,从而实现系数矩阵的参数化。该方法不仅能够用于b型管板的强度计算,而且能够用于管板形式为a型、但参数超出GB/T 151曲线范围的常规浮头换热器。GB/T 151 is applicable to strength calculation on a-type tubesheet of floating-head heat exchanger,while it is not applicable to b-type tubesheet. Tubesheets of this kind should be analyzed according to appendix Ⅰ of JB / T 4732. Yet this method is very complicated,for it involves a set of linear equations of eleven unknowns. Mechanics theory of tubesheet has been studied,and a set of linear equations of only three unknowns has been established,which helps to simplify solving process. Furthermore,the coefficient matrix have been sorted,simplified,and parameterized on this basis. This method can be not only used in b-type tubesheet,but is also applicable for a-type tubesheets whose parameters are beyond the scope of GB / T 151 curves.

关 键 词：浮头换热器 管板 强度计算 力学方程 

分 类 号：TH123[机械工程—机械设计及理论] TQ051.5[化学工程]