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自然风压对矿井通风系统稳定性的影响主要表现在其对风机工况的影响,为了提高大红山Ⅰ~#铜矿井通风系统的稳定性,实测并计算矿井夏季和冬季的自然风压大小,然后利用gambit建立矿井模型,运用基于UDF的Fluent模拟实测条件下其自然风压大小,与实测值进行对比,在得到吻合度较高的结果后,模拟极端气候条件下,自然风压的大小和方向,并作出自然风压与风机联合运行曲线图,得出实际的风机工况点参数,冬季、夏季的1、2、3号风机工况点均落在出厂性能29°安装角的曲线上,总体认为作用在Ⅰ~#铜矿井主通风机上的自然风压不会影响当前风机运行的稳定性。
The effect of natural wind pressure on the stability of mine ventilation system is mainly reflected in its impact on the turbine working conditions. In order to improve the stability of the ventilation system in Dahongshan Ⅰ ~ # Copper Mine, the natural wind pressure in summer and winter in mine is measured and calculated , And then use gambit to establish the mine model, the use of UDF-based Fluent simulation under the conditions of its actual wind pressure size, compared with the measured value, obtained in good agreement results, simulated extreme weather conditions, the natural wind pressure size And direction, and made a combination of natural wind pressure and fan curve, draw the actual fan operating point parameters, winter, summer 1, 2, 3 fan operating conditions are falling at the factory performance 29 ° installation angle curve On the whole, it is considered that the natural wind pressure acting on the main ventilator of No.1 ~ #Copper mine will not affect the stability of current fan operation.