介绍了井下通风局扇的变频控制系统。
Frequency conversion control system of local fan of ventilator was introduced in this paper.
防爆局扇是我总厂新开发的高效率、低能耗的新型井下通风设备。
Used on the newly developed high - efficiency and low energy consumption local fan are cast aluminum blades.
实验结果表明，柔性导叶调节是矿井局扇凤机中一种比较理想的调节方法。
The experimental results indicate that the flexible guide vane regulation is a comparative ideal regulating method for mine local fan.
指出被淘汰的仿苏(国际水平)普通轴流式局扇是我国优良的矿用局部通风设备。
It points out that obsolete common axial local fan copying Soviet Union (international level) is excellent local ventilation device for mine in our country.
局部通风：矿山生产期间对无贯穿风流的独头工作面或独头硐室采用局扇加强通风。
Local ventilation: Portable blow is adopted by the airless end or airless adit for ventilation.
本实用新型涉及一种瓦斯排放器产品，是由电控箱、甲烷检测仪、局扇等几部分组成。
The utility model relates to a gas discharge device which is composed of an electric-control box, a methane detector, a portable blower, etc.
通过对矿用局扇的性能试验研究和实际运行性能对比分析，进一步明确了对局扇运行性能的要求。
Through comparison analysis on actual operation performance of local fan for mine, and the requirement of local fan performance is identified further.
建井期间未构成全风压通风系统时，通常采用局扇供风，往往造成瓦斯积聚，为此选用轴流式大功率局部扇风机供风，是解决长距离通风的最佳选择。
When auxiliary fan without enough pressure used in shaft construction, it was possible to lead gas concentration. The powerful axial flow auxiliary fan may solve the problem.
建井期间未构成全风压通风系统时，通常采用局扇供风，往往造成瓦斯积聚，为此选用轴流式大功率局部扇风机供风，是解决长距离通风的最佳选择。
When auxiliary fan without enough pressure used in shaft construction, it was possible to lead gas concentration. The powerful axial flow auxiliary fan may solve the problem.
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