Research on Wind Network Solution and Calculation Model Based on Loop Air Volume Method
In order to solve the problem of not being able to use engineering methods to solve the entire mine's air network,a system engineering methodology was adopted to construct a ventilation system solution plan for the entire mine,and a series of models were proposed to optimize the mine's air network solution.In response to the problem of difficulty in abstracting the topology relationship of mine tunnels to obtain a ventilation network diagram,knowing some key ventilation parameters,or being unable to measure all key ventilation parameters of the mine,a full mine ventilation network solution was carried out based on the loop air volume method.By designing the pre work of the wind network solution model and studying different application scenarios of the model,combined with the ventilation data of Bofang Coal Mine,the solution accuracy reached over 90%.The convergence time of the network with less than 1000 branches was less than 10 seconds,and the loop resistance adjustment error was less than 0.5%.The research results indicate that the accuracy of the total mine air volume obtained through this solution series scheme is relatively high,which has important theoretical and practical significance for overall control of the mine ventilation status and mine ventilation decision-making.
wind network solution and calculation modelloop air volume methodmine ventilation
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