标题：A MODIFIED WELD STRUCTURE OF LAYERED UREA REACTOR BASED ON STRESS ANALYSIS AND LEAK DETECTION
作者：Xu, Shugen; Wang, Weiqiang; Li, Mengli; Song, Mingda
作者机构：[Xu, Shugen; Wang, Weiqiang; Li, Mengli] Shandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China.
会议名称：ASME Pressure Vessels and Piping Division/K-PVP Conference
会议日期：JUL 18-22, 2010
来源：PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE 2010, VOL 3
摘要：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.