矿井通风网络风阻参数仿真校验

Simulation Verifying of Mine Ventilation Network Resistance Parameters

受环境与现场条件的影响,巷道风阻的测定精度很难控制在理想的范围,在矿井风量预测和矿井通风系统优化过程中,巷道风阻又直接影响着风网的解算结果,因此对分支风阻的校验至关重要。改进分支风阻的节点风压法,提出应用多次实测风量、通过2次针对不同目标参数的整体或部分风网参数解算实现风阻校验的一种新算法,并基于matlab平台编制其仿真校验程序。通过matlab仿真校验实际矿井风网的风阻参数,证明了该算法及其程序可快速校验矿井通风网络的分支风阻参数的准确性,解决了以往的校验算法均需闭合回路校验且编程费时、费力的问题。

With the influence of environment and site condition, it is difficult to control the accurate of measuring the mine ventilation network’s resistance in the desired range. But the network resistance plays an important role in the process of mine air quantity prediction and optimization of the mine ventilation system, so the verifying of the resistance is crucial. The method of node solving the mine ventilation network resistance is improved, and a new method of verifying network resistance through repeatedly measured amount of wind and two calculations for different object of solving whole ventilation network is proposed. The mine ventilation network program is also compiled based on matlab7.0 software. Through the calculation of actual ventilation network, it is proved that the method and its program can quickly verify accurate of the mine ventilation network’s resistance, and the problems that previous method need closed loop calibration and more time and work are solved.