基于Ventsim的矿井通风风阻参数优化

研究矿井通风风阻变化规律对通风系统网络解算及优化调节的影响有着重要的意义。根据矿井通风系统中风量、风压和风阻之间的平衡关系，运用单因素分析法，实现快捷高效优化通风系统稳定性。该方法是通过改变某一分支巷道的风阻值，分析其他特征分支风量和风压对此变化做出的反应状况规律。以某金属矿山为例，将通风系统模型导入Ventsim三维仿真系统，选择一个具有代表性的特定分支，在其他参数保持不变的情况下，改变这一分支巷道的风阻值，通过仿真模拟解算出需要的数据。最后对解算结果进行分析比较，确定该分支巷道和相关分支风量及风机工况点之间的相互关系，来判断其对通风稳定性影响的大小。这不仅为矿井前期通风系统设计提供了理论依据，也为后期矿井通风系统运行及改造提供了数据支持，最终为实现矿井安全生产打下坚实基础。

Optimization of Mine Ventilation Resistance Parameter Based on Ventsim Software

It's very important to research the impact of the wind resistance changing regular of mine ventilation on mine ventilation network solution and optimal regulation. The single factor analysis method is proposed to realize a fast and high efficient optimal ventilation system by using the equilibrium rule of air volume，wind pressure and wind resistance of the ventilation system. In this method，the reacting rule for the other branch's air volume and air pressure with the variation is concluded through changing the wind resistance of one roadway branch. Taking a metal mine for example，the ventilation system model was introduced into Ventsim three-dimensional simulation system. Selecting a special branch as a representative，with any other parameters unchanged，and varying its wind resistance，the data needed were calculated out by simulation. Finally，the resolving results were analyzed and compared to determine the relationship between the branch and the associated branch's air volume and fan operating to judge its impacting level on the stability of the ventilation. The research not only provides the theoretical basis for the design of the mine ventilation system at early stage，but also the data support for post-mine ventilation system operation and reconstruction，and eventually lays a solid foundation for realizing the mine safety production.