Design about baffle plates of spherical diaphragm sealing for heat exchanger tube channel

doi:10.3969/j.issn.0438-1157.2013.z1.008

Abstract

Abstract: Spherical shape diaphragm of heat exchanger tube channel is a new structure of green and environment protection as its no leakage under high temperature and high pressure. Part structures and whole structures were designed for baffle plate of small diameter tube-channel, because spherical shape diaphragm new structure can not sealing with baffle plate by force. Strength design of baffle plate was calculated which of four kind boundary conditions, including four sides simple support, symmetric sides simple support and half-ellipse side fixed support or four sides fixed support. Formulas were introduced that used to check the strength of baffle plate fixed support sides. Combined baffle by parts were designed for baffle plate of large diameter tube-channel.

Key words: seal, baffle plate, spherical shape insulate diaphragm, strength design, optimal design, mechanical properties

摘要： 换热器管箱球膜密封是一种高温高压无泄漏的绿色环保新结构，针对该新结构与隔板之间不能采取传统强制密封的问题，对小直径管箱隔板提出了局部结构和整体结构两种设计形式，并通过案例分别对四边简支、对边简支和半椭圆固支、三边固支4种边界条件的隔板进行了强度设计计算，介绍了对固支边界条件隔板进行强度校核的计算式。对大直径收口管箱提出了分片组合的隔板结构。

关键词: 密封, 隔板, 球面隔膜, 强度设计, 优化设计, 力学性能

CLC Number:

CHEN Sunyi. Design about baffle plates of spherical diaphragm sealing for heat exchanger tube channel[J]. CIESC Journal, 2013, 64(S1): 53-58.

陈孙艺. 球面隔膜密封式换热器管箱中隔板的设计[J]. 化工学报, 2013, 64(S1): 53-58.

References 20

[1]	Feng Xiu(冯秀)，Gu Boqin(顾伯勤). Fractal characterization of seal surface topography of metallic gaskets[J]. Journal of Chemical Industry and Engineering (China) (化工学报), 2006，57(10)：2368-2371
[2]	Feng Xiu(冯秀)，Gu Boqin(顾伯勤). Leakage rate calculation of metallic gasket connections[J]. CIESC Journal (化工学报), 2010，61(5)：1209-1212
[3]	Gu Boqin, Chen Ye, Zhu Dasheng. Prediction of leakage rates through sealing connections with nonmetallic gaskets[J]. Chin. J. Chem.Eng., 2007，15(6)： 837-841
[4]	Feng Gang(冯刚). Research progress in the flow induced vibration mechanism of tube bundles in heat exchangers and precautionary measures[J]. Chemical Industry and Engineering Progree (化工进展), 2012, 31(3): 508-512
[5]	Lei Hongfeng(雷宏峰), Chen Jun(陈俊). Failure analysis and improvement of tube-case baffle used in heat exchanger[J]，Petro-Chemical Equipment(石油化工设备)，2008，37(1)：79-81
[6]	Yang Shaohua(杨少华). Reasons and treatments for super-heat tube explosion of quickly boiler[J]. Large Scale Nitrogenous Fertilizer Industry (大氮肥)，1999，22(5)：308-309
[7]	The Challenge Petrochemical Machinery Corporation of Maoming. A kind of tubular heat exchanger[P]：CN， 201220071215.9. 2012-10-03
[8]	The Challenge Petrochemical Machinery Corporation of Maoming. A kind of tube channel of tubular heat exchanger[P]：CN， 201220071211.0. 2012-10-24
[9]	Chen Sunyi. Design method about spherical diaphragm sealing of tube channel in high pressure heat exchanger[J]. Advanced Materials Research，2012, 538-541: 2164-2168
[10]	Chen Sunyi(陈孙艺). Spherical diaphragm sealing for large diameter and high pressure tube channel[J]. Process Equipment & Piping (化工设备与管道)，2012，49(Supp.1)：26-30
[11]	Chen Sunyi(陈孙艺). Complication analysis on base structure and function design method about spherical shape insulate diaphragm sealing of tube channel in high pressure heat exchanger[J]. Pressure Vessel Technology (压力容器)，2013，30(5)：18-22
[12]	Chen Sunyi(陈孙艺). Analysis of mechanics behavior on spherical diaphragm sealing of tube channel in heat exchanger[J]. Process Equipment & Piping (化工设备与管道)，2013，50(Suppl.1)：45-49
[13]	The Challenge Petrochemical Machinery Corporation of Maoming. A kind of tube channel structure of tubular heat exchanger [P]：CN， 201310059902.8. 2013-04-24
[14]	Wang Wei (王炜)，Wu Derong(吴德荣). Calculation of leakage of broken tube in shell & tube heat exchanger[J]. Chemical Engineering Design (化工设计), 2002,12(3):16-18
[15]	Qian Songwen(钱颂文). Heat Exchange Design Manual(换热设计手册)[M]. Beijing： Chemical Industry Press, 2002: 42，44，56，75-76
[16]	Fan Gen(樊艮)， Kou Wei(寇蔚)，Wang Jianping(王剑平). A kind of new design optimization strategy and its application in plate finned-tube heat exchanger[J]. Ship Science and Technology (舰船科学技术)，2011，33(2)：78-82
[17]	Xu Zhilun(徐芝纶). Elasticity (弹性力学(下册))[M]. Beijing：People Education Publishing Company, 1979：24-58
[18]	Xu Zhilun(徐芝纶). Brachylogy Tutorial of Elasticity Mechanics(弹性力学简明教程)[M]. 2nd ed. Beijing：Higher Education Press, 1980：226-229
[19]	The Challenge Petrochemical Machinery Corporation of Maoming. A kind of improved tube channel of tubular heat exchanger [P]：CN，201310107430.9. 2013-06-12
[20]	Zhu Youting(朱有庭.). Chemical Equipment Design Manual(化工设备设计手册)[M]. Beijing： Chemical Industry Press, 2005: 31-32，733