公开(公告)号：US20230325551A1

公开(公告)日：2023-10-12

申请号：US17786543

申请日：2021-04-10

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Guohua CHEN ,  Lixing ZHOU ,  Jinkun MEN ,  Chennan LUO ,  Xiaohui RAO

IPC: G06F30/18 ,  G06T17/00 ,  G06Q50/06 ,  G06Q10/067 ,  G06Q10/0637

CPC classification number: G06F30/18 ,  G06T17/00 ,  G06F2113/08 ,  G06Q10/067 ,  G06Q10/0637 ,  G06Q50/06

Abstract: Disclosed by the present invention is a multi-hazard accident coupling three-dimensional simulation system for a major oil and gas infrastructure, including an accident three-dimensional simulation module, an accident chain evolution prediction module, a model unit, and a database module. On the basis of an existing Natech accident analysis method, a Natech accident multi-hazard coupling link of a major infrastructure for oil and gas storage and transportation is considered, and all potential accident link possibilities are identified. In daily management, the accident probabilities and accident consequences of various units under multi-hazard coupling are analyzed to provide a basis for reasonable arrangement of safety protection facilities and emergency evacuation drill. In the emergency rescue stage after the accident occurs, the most probable propagation path and evolution time of the accident under multi-hazard coupling are analyzed to provided decision support for the development of emergency rescue actions.

公开(公告)号：US20220280822A1

公开(公告)日：2022-09-08

申请号：US17749168

申请日：2022-05-20

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Guohua CHEN ,  Zhihang ZHOU

IPC: A62C35/68 ,  G06F30/23

Abstract: Disclosed by the present invention is a target pipeline dynamic thermal failure analysis method in a parallel pipeline jet fire scenario, including the following steps: 1, inputting operation parameters of source pipeline to obtain instantaneous thermal radiation value received by target pipeline in instantaneous jet fire near field; 2, establishing fitting function relational expression of the instantaneous thermal radiation value and time change; 3, calculating instantaneous temperature distribution result of the pipe wall of the target pipeline; 4, calculating convective heat transfer coefficient of inner wall of the target pipeline; 5, calculating instantaneous thermal stress and total instantaneous stress borne by the pipe wall of the target pipeline in a circumferential direction, radial direction and axial direction; 6, carrying out testing to obtain yield strength and ultimate tensile strength corresponding to different temperatures; and 7, analyzing and judging target pipeline dynamic failure result.