Method for calculating coal mine underground space gas distribution law based on mass conservation
A technology of mass conservation and distribution rules, applied in calculation, design optimization/simulation, special data processing applications, etc., can solve the problems of inability to fully and intuitively control the gas distribution, heavy gas inspection workload, and lack of data mining and analysis, etc. , to achieve the effect of avoiding chain gas accidents
Active Publication Date: 2018-09-04
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] Such as figure 1 As shown, the application provides a method for calculating the gas distribution law in the underground space of coal mines based on mass conservation, including the following steps:
[0028] S1: Obtain the mine ventilation network, 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 a set of unassigned directed edges E', E' is a mutable set;
[0030] S3: Select a directed edge e in the directed edge set E′, where the directed edge is recorded as: ee, v1 is the start node, v2 is the end node, and let the direction of the directed edge is the roadway wind direction in the mine ventilation network;
[0031] S4: Judging whether the directed edge e is a directed edge with a known gas concentration C', if the judgment result is yes...
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The invention discloses a method for calculating coal mine underground space gas distribution law based on mass conservation. According to the calculation method, the gas concentration of part of roadways of the mine can be obtained based on a ventilation network and by utilizing an existing monitoring system of the mine, the gas distribution of the mine roadway can be calculated in real time; ifa gas accident occurs, the range of possible spread of the disaster gas generated by the gas accident can be accurately determined, and the decision basis is provided for the rapid and effective emergency treatment measures of the mine so as to avoid the occurrence of chain gas accidents and control the loss caused by the occurrence of the gas disasters to a minimum extent; the method provides technical support for the coal mine to master the gas distribution of the underground roadway, and provides s scientific management tool and an advanced technical means for safe management of mine ventilation gas and safety production.
Description
technical field [0001] The invention relates to a method for calculating gas distribution law in coal mine underground space based on mass conservation. Background technique [0002] With the development of my country's coal mines into deep space and the continuous expansion of mine mining scale, the amount of gas emitted 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 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 control. technical support. Therefore, effective measures should be taken to clarify the distribution of gas in the underground space of coal mines and provide technical support for mine safety production. [0003...
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IPC IPC(8): G06F17/50
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