卧式热虹吸再沸器的压力平衡计算

doi:10.16085/j.issn.1000-6613.2019-0384

化工进展 ›› 2019, Vol. 38 ›› Issue (s1): 265-269.DOI: 10.16085/j.issn.1000-6613.2019-0384

卧式热虹吸再沸器的压力平衡计算

袁娟

惠生工程(中国)有限公司北京分公司, 北京 100102

收稿日期:2019-03-13 修回日期:2019-03-26 出版日期:2019-11-16 发布日期:2019-11-16
通讯作者: 袁娟(1986-),女,硕士,工程师,研究方向为传热相关工程设计。
作者简介:袁娟(1986-),女,硕士,工程师,研究方向为传热相关工程设计。E-mail:yuanjuan@wison.com。

Pressure balance calculation for horizontal thermosyphon reboiler

YUAN Juan

Beijing Branch, Wison Engineering Ltd., Beijing 100102, China

Received:2019-03-13 Revised:2019-03-26 Online:2019-11-16 Published:2019-11-16

摘要/Abstract

摘要： 由传热设计软件HTRI7.0对石油化工装置中常用的卧式热虹吸再沸器的工艺设计过程进行详细介绍。文章主要研究了卧式热虹吸再沸器基于压力平衡下的再沸器安装高度的计算方法及步骤，得出了卧式热虹吸再沸器的阻力损失包括再沸器入口管线阻力损失、再沸器内的阻力损失和再沸器出口管线阻力损失三部分，其中，再沸器出口管线为两相流，其阻力损失计算采用分离模型计算的误差小，准确度高。根据上述工艺设计方法，以某甲醇制烯烃（MTO）装置中一台水汽提塔再沸器为例，分析了该再沸器开工时出口管线振动的原因是由于推动力过大导致两相流流型为不稳定流型从而引起操作不稳定，并给出合理的改造和解决方案，即在再沸器入口管线增加手动调节阀。

关键词: 热虹吸, 卧式再沸器, 压力平衡

Abstract: A detailed design procedure for the horizontal thermosyphon reboiler using thermal rating software HTRI7.0 in petrochemical engineering plant is introduced. Which includes the calculation method of installation height between tower and reboiler. The total pressure drop of horizontal thermosyphon reboiler includes the inlet piping pressure drop, the heat exchanger pressure drop and the outlet piping pressure drop. The flow in outlet piping is two phase fluid and the pressure drop can be calculated using the separated flow mode. An example of water stripper reboiler in a MTO unit is also given to analyze the vibration problem during start-up case and a reasonable solution that adding a valve at inlet piping to change the two phase flow mode is provided finally.

Key words: thermosyphon, horizontal reboiler, pressure equilibrium

中图分类号:

袁娟. 卧式热虹吸再沸器的压力平衡计算[J]. 化工进展, 2019, 38(s1): 265-269.

YUAN Juan. Pressure balance calculation for horizontal thermosyphon reboiler[J]. Chemical Industry and Engineering Progress, 2019, 38(s1): 265-269.

参考文献

[1] 刘巍. 冷换设备工艺计算手册[M]. 2版. 北京:中国石化出版社, 2008:201-203. LIU W. Handbook for process calculation of cold exchange equipmen[M]. 2nd ed. Beijing:China Petrochemical Press, 2008:201-203.
[2] DON L. No hassle reboiler selection[J]. Hydrocarbon Process, 1992(10):41-43.
[3] 施林德尔E U. 换热器设计手册(第三卷):换热器的热设计与流动设计[M]. 马庆芳, 马重芳, 译. 北京:机械工业出版社, 1988:160-163. SCHLINDELL E U. Heat exchanger design handbook (vol III):Thermal and hydraulic design of heat exchangers[M]. MA Q F, MA C F, trans. Beijing:China Machine Press, 1988:160-163.
[4] 胡景辉, 张芳军, 李雨, 等. 基于压力平衡下的立式热虹吸再沸器安装高度设计[J]. 河南化工, 2017, 34(10):42-45. HU J H, ZHANG F J, LI Y, et al. Installation height design of vertical thermosiphon reboiler based on pressure balance[J]. Henan Chemical Industry, 2017, 34(10):42-45.
[5] 范文元, 王钰. 化工原理(天大修订版)全程导学及习题全解[M]. 北京:中国时代经济出版社, 2007:35-41. FAN Y W, WANG Y. Principles of chemical engineering[M]. Beijing:China Morden Economics Publishing House, 2007:35-41.
[6] 张朝环. 热虹吸式再沸器的压力平衡设计[J]. 化工进展, 2015, 34(s1):43-46. ZHANG Z H. Pressure balance design for thermal siphon reboiler[J]. Chemical Industry and Engineering Progress, 2015, 34(s1):43-46.
[7] 尾花英朗. 热交换器设计手册(上册)[M]. 徐中权, 译. 北京:石油工业出版社, 1981:397-411. WEIHUA Y L. Heat exchanger design handbook[M]. XU Z Q, tran. Beijing:Petroleum Industry Press, 1981:397-411.
[8] PALEN J W. Principles of gas-liquid two-phase flow calculations[M]. California:Heat Transfer Research, Inc., 1976:300-335.
[9] HTRI. Design manual[M]. California:Heat Transfer Research, Inc., 2013:637-638.
[10] 高婧. 热虹吸再沸器安装高度不足时的解决方案[J]. 石油和化工设备, 2017, 20(2):61-63. GAO J. Solution when the installation height of thermosiphon reboiler is insufficient[J]. Petro & Chemical Equipment, 2017, 20(2):61-63.

卧式热虹吸再沸器的压力平衡计算

Pressure balance calculation for horizontal thermosyphon reboiler

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