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local fan     
相关语句
  局扇
     Design of Three-tunnel Drilling Local Fan Integrated Control System Based on PLC
     基于PLC控制的三巷掘进局扇集成控制系统的设计
短句来源
     INVESTIGATE THE NOISE CONTROL OF LOCAL FAN
     局扇噪声控制探讨
短句来源
     Frequency Conversion Control System of Local Fan of Ventilator
     通风局扇变频控制系统
短句来源
     A doable design is presented, the function of switching the main and vice local fan, and function of disposing gas overrun etc are realized.
     提出了切实可行的双局扇互锁系统的整体方案,完成了主、副局扇自动切换、瓦斯超标故障处理、瓦斯控制工作面、瓦斯控制局扇等功能。
短句来源
     Controlling of fire in goaf of working face by adjusting pressure with local fan
     用局扇调压控制生产工作面采空区火源
短句来源
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  局部通风机
     Study on the Integrated Control System of Local Fan in Underground Heading Faces Based on AT89C52
     基于AT89C52的矿井单巷道局部通风机集成控制系统的研究
短句来源
     Fuzzy control technology for mine local fan with frequency Inverter speed control
     矿用变频调速局部通风机的模糊控制技术
短句来源
     The Method and Safety to Exhaust Gas with Local Fan
     局部通风机排放瓦斯方法与安全性的探讨
短句来源
     The Development Analysis of the 5.5KW Memdian-Accelerated Axial-flow Local Fan
     叶轮采用玻璃钢复合材料的5.5KW子午加速轴流式局部通风机的研制分析
短句来源
     Improvement of Running Reliability of Underground Local Fan
     井下局部通风机运行可靠性的改善
短句来源
更多       
  局部扇风机
     The paper summarizes mainly the research and control of pneumatic noise of local fan, the sonic model of isolated blade wheel and the control method of noise in home and foreign countries.
     文章主要综述了国内外对局部扇风机气动噪声的研究与控制方法,对孤立叶轮的声学模型及其噪声控制方法。
短句来源
     Improvement and Study of Working Stability of A Local Fan
     局部扇风机的工作稳定性研究和改善
短句来源
  局扇风机
     Flexible Guide Vane Regulation for Mine Local Fan
     矿井局扇风机的柔性导叶调节
短句来源
     The reasons of local fan destroied underground mine are analyzed. And the methods of solving the burning problems caused by breaking phase are provided, which is only changing one circuit.
     分析了井下局扇风机烧毁的原因 ,提出了仅改动一根线 ,即可解决井下局扇风机因断相而烧损问题的方法。
短句来源

 

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      local fan
    Are defined as air supply outlets that rely on a local fan to deliver air from the plenum.
          


    A mechanical rock heading line is composed of 30 to 40 pieces of equipments, such as reck drills, drilling hele projector, scraper-type rock loader with a mine-car switch panel, battery locomotives, bolting machine, concrete shoting machine, local fan, laser guide, gas warning and power-off instrucment and ect. Such two headind lines have been used for the mine developments in Pengchun Mine, Songzao Coal Mine Bureau Sichuan Province by No, 9 Construction Division of Sichuan Coal Company. One of the lines...

    A mechanical rock heading line is composed of 30 to 40 pieces of equipments, such as reck drills, drilling hele projector, scraper-type rock loader with a mine-car switch panel, battery locomotives, bolting machine, concrete shoting machine, local fan, laser guide, gas warning and power-off instrucment and ect. Such two headind lines have been used for the mine developments in Pengchun Mine, Songzao Coal Mine Bureau Sichuan Province by No, 9 Construction Division of Sichuan Coal Company. One of the lines is used for the development in a - 830m level main return air drift. The advance rate is 1272 meters for a period of six months. The avera ge advance rate per month is 212 meters. The max.advance rate per month is 335 meters and the average efficiency is 2.05 m~3/man/shift The other line is used for the development of a +750m level haulage drift. The advance rate for three months is 704 meters. The average advance rate per month is 234.6 meters. The max. advance rate per month is 351.7 m-eters. The average efficiency is 1.82m~3/man/ shift. The qualities of the developments are 100% passed and the excelent ratio for the developments are reached to 58%. It has saved R M B 610,000 for the capital cost.

    总结这条作业线在逢春矿使用19个月共进尺3346m的施工经验。

    This paper introduces structure and regulation theory of flexible guide vane. The experimental results indicate that the flexible guide vane regulation is a comparative ideal regulating method for mine local fan.

    本文介绍了柔性导叶的结构及调节原理。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 paper summarizes mainly the research and control of pneumatic noise of local fan, the sonic model of isolated blade wheel and the control method of noise in home and foreign countries. The preliminary practice and the result of noise control of Type YBT52-2 fan manufactured by a factory with the participation of the writer are finally introduced.

    文章主要综述了国内外对局部扇风机气动噪声的研究与控制方法,对孤立叶轮的声学模型及其噪声控制方法。并介绍了作者与某厂共同研制的YBT52—2风机噪声控制的初步实践和结果。

     
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