公开(公告)号：US20240310229A1

公开(公告)日：2024-09-19

申请号：US18473832

申请日：2023-09-25

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Jianwei LI ,  Zhonghao TIAN ,  Xuechao WANG ,  Rongxue KANG ,  Hangyu ZHOU ,  Bo DENG

IPC: G01M3/04

CPC classification number: G01M3/04

Abstract: A method and system for predicting a diffusion range of a hazardous gas, an electronic device and a storage medium are provided. The method includes: gridding a space area of a public scene to obtain a gridded space; performing leakage source analysis according to the gridded space to determine a leakage feature; determining a hazardous gas prediction manner according to the leakage feature and an early warning condition, where the hazardous gas prediction manner includes a hazardous gas existence mode and a protective gas coexistence mode; determining a diffusion circle coverage according to the hazardous gas prediction manner and a wall barrier action; determining a hazardous gas concentration in grids covered by a diffusion circle according to the diffusion circle coverage; and determining a hazardous gas distribution according to the hazardous gas concentration, a leakage outlet and a ventilation opening.

公开(公告)号：US20230406108A1

公开(公告)日：2023-12-21

申请号：US18212143

申请日：2023-06-20

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Jianwei LI ,  Zhonghao TIAN ,  Xinming WAN ,  Hongwen HE ,  Fengchun SUN ,  Wenjun GUO ,  Zhanxin MAO

IPC: B60L3/04

CPC classification number: B60L3/04

Abstract: The present disclosure relates to a risk early warning method and system for hydrogen leakage, and relates to the field of hydrogen leakage. The method includes: obtaining ventilation information of a hydrogen-related area; carrying out grid division on a pipeline system of the hydrogen-related area to obtain a gridded pipeline system; determining a risk coefficient corresponding to each grid of the gridded pipeline system according to leakage sources of the pipeline system; determining a high-risk region by means of a jet cone model according to the risk coefficients; determining a medium-risk region, a low-risk region and a safe region according to the risk coefficients and the ventilation information; and carrying out risk early warning according to the high-risk region, the medium-risk region, the low-risk region and the safe region.