| 朱城荣，徐 波.三聚甲醛／水换热器的数值模拟及结构改进[J].轻工机械,2016,34(2): |
| 三聚甲醛／水换热器的数值模拟及结构改进 |
| Study on Numerical Simulation and Structure Improvement of S-Trioxane/Water Heat Exchanger |
| |
| DOI：10. 3969/j. issn. 1005 -2895. 2016. 02. 019 |
| 中文关键词: 管壳式换热器 流体流动 传热 数值模拟 ANSYS FLUENT 15.0软件 |
| 英文关键词:shell and tube heat exchanger fluid flow heat transfer numerical simulation ANSYS FLUENT 15. 0
software |
| 基金项目: |
|
| 摘要点击次数: 1404 |
| 全文下载次数: 1413 |
| 中文摘要: |
| 针对某大型化工企业的三聚甲醛／水换热器在生产中发生的失效问题，借助于ANSYS FLUENT 15．O软件对换热
器的流体流动以及传热进行数值模拟。通过分析管程和壳程流体的流速分布、温度分布及压力分布情况，找到产生故障
的原因，提出结构改进措施，并采用数值模拟的方法，验证结构改进的合理性。研究结果表明：改变管程进口的方向和距
离，调整壳程进、出口的位置，并在管程和壳程进口处加防冲档板能够使管程和壳程进、出口处的流场分布趋于均匀；降
低流体对管束的冲击力，改善管束周边的应力分布状态。结构改进后可有效防止事故的发生。 |
| 英文摘要: |
| In order to solve the failure problem of s-trioxane/water heat exchanger used in a large chemical industry, a
numerical simulation on the fluid flow and heat transfer of the heat exchanger was established by using ANSYS
FLUENT15. 0 software. By the analysis of the velocity field , temperature field and pressure field . the cause of the failure
was found , and it put forward a measure to modify the structure. The improved rationality of structure was verified by the
mean of numerical simulation. The research results show that the field distribution in the inlet and outlet of shell and
tube tends to be uniform after the structure improved. The impact force of the fluid to the tube bundle is reduced and the
stress distribution around the tube bundle is improved. The accidents could be effectively prevented after the structure
improved. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
