A Method for Predicting the Diffusion Range of Gas Leakage
A technology of gas leakage and prediction method, which is applied in the direction of diffusion analysis, measuring devices, instruments, etc., and can solve the problem that it is impossible to determine the specific range of gas impact
Active Publication Date: 2020-06-16
BEIJING INSTITUTE OF TECHNOLOGYGY
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[0004] The embodiment of the present invention provides a method for predicting the range of gas leakage and diffusion, which is used to solve the problem of the inability to determine the specific range that may be affected by gas leakage in the prior art, and to quickly detect the range of gas leakage and diffusion
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[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0016] Before explaining the embodiment of the present invention, first explain the farthest diffusion distance of summer gas with different types of covering media.
[0017] figure 1 is a schematic diagram of the gas diffusion distance in different media in the prior art, such as figure 1 As shown, in soil or grassland, under the ideal conditio...
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The embodiment of the invention provides a gas leakage diffusion range prediction method. The gas leakage diffusion range prediction method comprises the steps that a target gas pipeline set is obtained according to all gas pipelines in a target area; a gas diffusion area is determined according to gas leakage areas corresponding to all the target gas pipelines in the target gas pipeline set; andas for any one of the target gas pipelines in the target gas pipeline set, the gas leakage area corresponding to any one of the target gas pipelines is determined according to the gas diffusion distance corresponding to a medium of any one of the target gas pipelines. Aiming at the situation that current gas operation and supervision departments only have gas leakage detection means, according tothe gas leakage diffusion range prediction method, under the situation that the underground space gas concentration value is detected, by combining with the diffusion characteristics of gas under different media, the combustible gas diffusion area is quickly detected, thus repair and evacuation work can be guided, and the effects of loss reducing and benefit increasing are achieved.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of gas leakage, and in particular to a method for predicting the diffusion range of gas leakage. Background technique [0002] After the urban buried gas pipeline is put into operation, due to man-made or natural factors, there may be perforations, cracks or breaks resulting in gas leakage. Leaked gas directly emerges from the ground through loose soil or through weak links in the road surface, such as inspection wells, gaps in sidewalks, green belts, etc. to escape the ground. If the leaked gas reaches the explosion limit, a fire or explosion may occur when it encounters an ignition source, resulting in serious casualties and property losses. However, there is currently no means of predicting the extent of the spread of similar underground oil and gas pipeline leaks. [0003] Therefore, there is an urgent need for a method for predicting the diffusion range of gas leakage. Contents...
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IPC IPC(8): G01N13/00
CPCG01N13/00G01N2013/003
Inventor 袁梦琦钱新明侯龙飞黄捷端木维可
Owner BEIJING INSTITUTE OF TECHNOLOGYGY