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过程工程学报 ›› 2022, Vol. 22 ›› Issue (9): 1203-1212.DOI: 10.12034/j.issn.1009-606X.221331CSTR: 32067.14.jproeng.221331

• 研究论文 • 上一篇    下一篇

新型热解炉燃烧室流热固耦合仿真与结构优化

高华鑫1， 刘雪东1,2*， 张炜3， 查晓峰4， 吕圣男1， 刘佳君1， 吕开新1
  

  1. 1. 常州大学机械与轨道交通学院，江苏 常州 213164 2. 江苏省绿色过程装备重点实验室，江苏 常州 213164 3. 中石化宁波工程有限公司，浙江 宁波 315048 4. 江苏金陵干燥科技有限公司，江苏 常州 213164
  • 收稿日期:2021-10-18 修回日期:2021-12-17 出版日期:2022-09-28 发布日期:2022-10-09
  • 通讯作者: 刘雪东 lxd99@126.com
  • 作者简介:高华鑫(1996-)，女，山东省临沂市人，硕士研究生，动力工程专业，E-mail: 990544189@qq.com；通讯联系人，刘雪东，E-mail: xdliu_65@126.com.
  • 基金资助:
    中国石油化工集团有限公司重点研发计划

Fluid-thermal-structure coupling simulation and structural optimization of combustion chamber of a new pyrolysis furnace

Huaxin GAO1,  Xuedong LIU1,2*,  Wei ZHANG3,  Xiaofeng ZHA4,  Shengnan LÜ1,  Jiajun LIU1,#br#   Kaixin LÜ1   

  1. 1. School of Mechanical Engineering and Uban Rail Transportation, Changzhou University, Changzhou, Jiangsu 213164, China 2. Jiangsu Key Laboratory of Green Process Equipment, Changzhou University, Changzhou, Jiangsu 213164, China 3. Sinopec Ningbo Engineering Co., Ltd., Ningbo, Zhejiang 315048, China 4. Jiangsu Jinling Drying Technology Co., Ltd., Changzhou, Jiangsu 213164, China
  • Received:2021-10-18 Revised:2021-12-17 Online:2022-09-28 Published:2022-10-09
  • Contact: Xuedong LIU lxd99@126.com
  • Supported by:
    China Petrochemical Corporation Key R&D Program

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摘要： 针对新型热解炉燃烧室结构，采用ANSYS Workbench流热固耦合方法，研究不同结构参数下燃烧室的温度场与变形场，获得了最优的燃烧室结构。结果表明，燃烧室内设挡板的结构性能优于无挡板的结构性能，燃烧室内设挡板的温度场变异系数的变化幅度比无挡板的变化幅度减小0.06，温度场分布更均匀；燃烧室的最大变形出现在燃烧室与热解室之间的隔板上，有挡板的燃烧室最大变形量较无挡板的燃烧室减少80%，且最大变形量均随着挡板位置距中心的距离或挡板长度增加呈先减小后增大的趋势，而挡板厚度对变形场的影响最小；在挡板位置为150 mm，挡板长度为800 mm，挡板厚度为14 mm时，新型热解炉燃烧室的结构最优。

关键词: ANSYS 工作台, 热解炉, 燃烧室, 流热固耦合, 数值模拟

Abstract: In order to dispose oily sludge, a vertical multi-layer rotating disc pyrolysis furnace is developed independently. The high-temperature gas generated in the combustion chamber provides heat for the pyrolysis furnace. Therefore, the thermal efficiency and safety of the combustion chamber are the guarantee for the stable operation of the entire pyrolysis furnace. In order to determine whether the new pyrolysis furnace structure was safe and feasible, the temperature field and deformation field of the combustion chamber under different structural parameters were studied by using the fluid-thermal-solid coupling method of ANSYS Workbench, and the structure of the combustion chamber of the pyrolysis furnace was optimized by exploring the parameters of the baffle. The results showed that the structural performance of the baffle in the combustion chamber was better than that without baffle. The variation range of the temperature field variation coefficient of the combustion chamber with the baffle was 0.06 smaller than that without baffle, and the temperature field distribution was more uniform. The maximum deformation of the combustion chamber appeared on the partition between the combustion chamber and the pyrolysis chamber. The maximum deformation of the combustion chamber with baffle was 80% less than the maximum deformation of the combustion chamber without baffle, and the maximum deformation with the increase of the position of the baffle to the centre or the length of the baffle showed a trend of first decreasing and then increasing, and the thickness of the baffle had the least influence on the deformation field. When the baffle position was 150 mm, the length of the baffle was 800 mm, and the thickness of the baffle was at 14 mm, the structure of the combustion chamber of the new pyrolysis furnace was optimal. The use of fluid-thermal-solid coupling method for the optimization design of such combustion chamber structure had more reliable engineering significance, and it also provided technical support for the subsequent industrial application of oily sludge pyrolysis technology.

Key words: ANSYS Workbench, pyrolysis furnace, combustion chamber, fluid-thermal-structure coupling, numerical simulation