Study on Security Angle of Gas Pipeline Elbow Based on Stress Analysis Method
Jieying Liu1, *, Lingxiao Li2, Tianjiao Hou3, Xinguo Wu4, Qiao Zhou4
Identifiers and Pagination:Year: 2016
Issue: Suppl-1, M2
First Page: 133
Last Page: 140
Publisher Id: TOCIEJ-10-133
Article History:Received Date: 17/09/2014
Revision Received Date: 17/12/2014
Acceptance Date: 23/12/2014
Electronic publication date: 31/03/2016
Collection year: 2016
open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
The gas pipelines usually undergo complicated and changeable regional environment. As the level of the potential difference or pipeline’s route changes in the space and therefore elastic bending cannot meet the needs when pipe changes its direction, we generally use pipe bend to connect two pipelines with different spatial extend direction during the pipe laying period, and it can reduce the temperature stress. Unreasonable design of elbow will lead to pipeline damage. We established mountain area pipeline model, and conducted analysis on pipeline stress under different elbow angles. Research shows that different angles of the bends suffer different operation stress, and we have come to the conclusion that the angle of pipe bends should not be within the range of 15 degrees to 35 degrees.