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  • 中国标准连:ISSN1005-2895
  • 续出版物号: CN 33-1180/TH
  • 主管单位:轻工业杭州机电设计研究院有限公司
  • 主办单位:轻工业杭州机电设计研究院有限公司、中国轻工机械协会、中国轻工业机械总公司
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魏子超1, 孙超1, 李庆生1*, 陆玮2.双轴自清洁反应器“8”字壳开孔接管结构外压稳定性研究[J].轻工机械,2024,42(5):20-26
双轴自清洁反应器“8”字壳开孔接管结构外压稳定性研究
Stability of External Pressure in 8 Shaped Shell with Nozzle Structure of Biaxial Self Cleaning Reactor
  
DOI:10.3969/j.issn.1005 2895.2024.05.003
中文关键词:  双轴自清洁反应器  “8”字壳开孔  接管结构  外压稳定性分析  临界失稳压力削弱系数
英文关键词:biaxial self cleaning reactor  8 shaped shell  nozzle structure  external pressure stability analysis  critical destabilizing pressure weakening coefficient
基金项目:
作者单位
魏子超1, 孙超1, 李庆生1*, 陆玮2 (1.南京工业大学 机械与动力工程学院 江苏 南京211816 2.江苏省特种设备安全监督检验研究院泰州分院靖江所 江苏 泰州214500) 
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中文摘要:
      针对双轴自清洁反应器“8”字壳开孔接管结构承受外压过大时易发生失稳的问题,课题组提出采用有限元分析方法进行双轴自清洁反应器“8”字壳开孔接管结构外压稳定性研究,当接管中心线和“8”字壳垂直中心线的距离X分别取0.0a,0.4a和0.5a,径厚比Do/δe分别取30,40,50,60和70,长径比L/Do分别取2,3,4,5和6,开孔率d/D分别取010,0.25,0.40,0.55和0.70,接管壁厚和筒体壁厚比δet/δe分别取0.2,0.6,1.0,1.4和1.8时,探究各结构参数与临界失稳压力削弱系数K的关系。研究结果表明:接管壁厚和筒体壁厚比δet/δe和长径比L/Do较小及开孔率d/D和径厚比Do/δe较大时,开孔接管对“8”字壳外压承载能力削弱严重。
英文摘要:
      Aiming at the problem of instability in the 8 shaped shell with nozzle structure of biaxial self cleaning reactor under excessive external pressure, the finite element analysis method was used to investigate the external pressure stability of 8 shaped shell with nozzle structure of the biaxial self cleaning reactor. When the distance between the nozzle centerline and the vertical centerline of the 8 shaped shell X was 0.0a,0.4a and 0.5a,Do/δe was 30, 40, 50, 60 and 70, L/Do was 2, 3, 4, 5and 6, d/D was 0.10,0.25,0.40,0.55 and 0.70, δet/δewas 0.2,0.6,1.0,1.4 and 1.8, the relationship between various structural parameters and the critical destabilizing pressure weakening coefficient K was investigated.The results show that the external pressure bearing capacity of the 8 shaped shell of nozzle structure is significantly weakened for the smaller δet/δe, the smaller L/Do,the larger d/D, and the larger Do/δe.
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