A Modified Weld Structure of Layered Urea Reactor Based on Stress Analysis and Leak Detection

作者：Xu Shugen; Wang Weiqang^*; Li Mengli

来源：Journal of Pressure Vessel Technology-Transactions of the ASME, 2012, 134(3): 031203.

DOI：10.1115/1.4005864

• layered urea reactor
• stress analysis
• leak detection
• modified weld structure

In this paper, a modified weld structure of the layered urea reactor has been provided. In the modified structure, new circumferential weld can improve the stress status of the urea reactor. It has the both advantage of separated and integrated layered pressure vessel. This modified design is based on the stress status analysis and the requirement of leak detection. In order to evaluate the modified structure, stresses of original and modified urea reactor shell with interlayer gaps were calculated via Finite element software ANSYS 12.0. The calculation result shows that the maximum stress of the modified structure is reduced obviously in the same condition, and the leak of liner also can be detected effectively. [DOI: 10.1115/1.4005864]

• 出版日期2012-6
• 单位山东大学; 中国石油大学（北京）