Calculation method of gas distribution law in coal mine underground space based on mass conservation
A quality conservation, distribution law technology, applied in design optimization/simulation, special data processing applications, etc., can solve the problem of gas distribution that cannot be fully and intuitively controlled, lack of data mining analysis, cannot be systematically arranged, mining work and gas management. Scientific and technical support and other issues to achieve the effect of avoiding chain gas accidents
Active Publication Date: 2022-03-22
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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Problems solved by technology
Due to the large workload of daily gas inspections, the small coverage of monitoring sensor layout, and the lack of data mining and analysis, it is still impossible to comprehensively and intuitively control the gas distribution in the entire mine space, and cannot provide scientific information for system layout, mining work, and gas management. technical support
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[0027] like figure 1 As shown, the present application provides a method for calculating the gas distribution law in coal mine underground space based on mass conservation, including the following steps:
[0028] S1: Obtain a mine ventilation network, and construct a geometric network according to the mine ventilation network. The geometric network includes an adjacency matrix A, a network node set V, and a directed edge set E; the node set V and the directed edge set E are recorded as: Directed graph G=(V, E);
[0029] S2: Create an unassigned directed edge set E', E' is a variable set;
[0030] S3: Select a directed edge e in the directed edge set E', wherein the directed edge is denoted as: ee, v1 is the start node, v2 is the end node, and let the direction of the directed edge be It is the wind direction of the roadway in the mine ventilation network;
[0031] S4: Determine whether the directed edge e is a directed edge with a known gas concentration C', and if the dete...
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The invention discloses a method for calculating gas distribution law in coal mine underground space based on mass conservation. The calculation method is based on a ventilation network, fully utilizes the existing monitoring system of the coal mine, obtains the gas concentration of part of the mine tunnel, and can calculate the gas distribution of the mine tunnel in real time; In the event of a gas accident, it can accurately judge the possible range of the disaster gas that it produces, and provide decision-making basis for the mine to take effective emergency measures quickly, so as to avoid chain gas accidents and control the losses caused by the gas disasters that have occurred. At the lowest level; provide technical support for coal mines to master the gas distribution in underground roadways, and provide scientific management tools and advanced technical means for mine ventilation gas safety management and safe production.
Description
technical field [0001] The invention relates to a method for calculating the gas distribution law in coal mine underground space based on mass conservation. Background technique [0002] With the development of my country's coal mining to deep space and the continuous expansion of mine mining scale, the gas emission from coal mines has increased significantly, which is an important bottleneck restricting mine safety production. Due to the large workload of daily gas inspection, the small coverage of monitoring sensor layout, and the lack of data mining analysis, it is still impossible to comprehensively and intuitively control the spatial gas distribution in the whole mine, and it cannot provide scientific information for system layout, mining work and gas control. technical support. Therefore, effective measures should be taken to clarify the distribution law of underground space gas in coal mines and provide technical support for mine safety production. [0003] During t...
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IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 张庆华赵旭生梁军姚亚虎罗广斯磊赵吉玉李明建邹云龙宁小亮覃木广马国龙谈国文王麒翔崔俊飞刘文杰乔伟和树栋张士岭唐韩英
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD