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Underground Auxiliary Ventilation Monitoring and Diagnostic System

机译：地下辅助通风监控诊断系统

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Ventilation is part of all underground mine operations and is undertaken in order to introduce fresh, cool air to the workings and to remove stale, affected air. It is problematic to obtain efficient and accurate estimates of volume flow and static pressure in the installed operational configuration for the auxiliary axial flow fans. An empirical method was developed to estimate the static pressure and volume flow through a calibrated differential pressure port on axial flow fans. Prior to shipping, each fan is performance tested according to BS 848 (ISO 5801) to establish the fan performance curves. In addition to the standard required parameters captured to fully describe the performance, the differential pressure is measured across the fan rotor to enable correlation with the characteristic fan curve. The method was implemented on a ruggedised tablet PC platform. This compact platform is then used to calculate the volume flow rate from the differential pressure sensor measurement input via a USB port. The result is a real-time measurement of volume flow and operating point of the fan system. This can be used effectively in overall modelling of the mine auxiliary ventilation systems and calculation of system resistance could provide a health indication of the fan and duct system.
机译：通风是所有地下矿井运营的一部分，并进行了开展的，以便向工作引入新鲜，凉爽的空气并去除陈旧的受影响的空气。在为辅助轴流风扇的安装操作配置中获得高效和准确的体积流量和静压估计是有问题的。开发了一种经验方法，以估计轴流风扇上校准的差压端口估计静压和体积流量。在发货之前，每个风扇是根据BS 848（ISO 5801）测试的性能，以建立风扇性能曲线。除了捕获的标准所需参数以完全描述性能之外，在风扇转子上测量差压，以便能够与特性风扇曲线相关。该方法在粗糙的平板电脑平台上实现。然后使用该紧凑平台通过USB端口计算来自差压传感器测量输入的体积流量。结果是风扇系统的体积流量和操作点的实时测量。这可以有效地在矿井辅助通风系统的整体建模中使用，并且系统电阻的计算可以提供风扇和管道系统的健康指示。

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