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air admission to main shaft central hole
相关语句
  主轴中心孔补气
     Air Admission to Main Shaft Central Hole in Hydraulic Turbine
     水轮机主轴中心孔补气
短句来源
     By means of air admission to main shaft central hole,the vacuum degree can be decreased,the generation of helical vortex band in the draft tube,pressure pulsation,cavitation on the runner etc.
     通过主轴中心孔补气,可减小尾水管内的真空度,破坏尾水管内的螺旋形涡带的形成和压力脉动、转轮的汽蚀等,从而保证机组的安全稳定运行。
短句来源
  相似匹配句对
     Air Admission to Main Shaft Central Hole in Hydraulic Turbine
     水轮机主轴中心孔补气
短句来源
     By means of air admission to main shaft central hole,the vacuum degree can be decreased,the generation of helical vortex band in the draft tube,pressure pulsation,cavitation on the runner etc.
     通过主轴中心孔补气,可减小尾水管内的真空度,破坏尾水管内的螺旋形涡带的形成和压力脉动、转轮的汽蚀等,从而保证机组的安全稳定运行。
短句来源
     Reform of Main Shaft for Air Cooling Fan
     空冷风机主轴的改造
短句来源
     Development and Application of Polisher for Turbine Generator Shaft Central Hole
     汽轮发电机主轴中心孔打磨机的研制和应用
短句来源
     ADMINISTRATION OF CENTRAL AIR SHAFT NOISE OF JIAHE COAL MINE
     夹河煤矿中央风井噪声治理
短句来源
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In case of the turbine is operated departing the optimum condition,the low presure and the vortex band will be established in the draft tube centre by the flow circulation.The vortex will generate pressure pulsation,consequently the vibration and noise are arisen in the units.By means of air admission to main shaft central hole,the vacuum degree can be decreased,the generation of helical vortex band in the draft tube,pressure pulsation,cavitation on the runner etc.can be destroyed,as a result the safe...

In case of the turbine is operated departing the optimum condition,the low presure and the vortex band will be established in the draft tube centre by the flow circulation.The vortex will generate pressure pulsation,consequently the vibration and noise are arisen in the units.By means of air admission to main shaft central hole,the vacuum degree can be decreased,the generation of helical vortex band in the draft tube,pressure pulsation,cavitation on the runner etc.can be destroyed,as a result the safe and stable operation of the units can be ensured.

水轮机在偏离最优工况运行时,水流的环量会使尾水管中心产生低压并形成涡带。此涡带引起尾水管压力脉动继而引起机组的振动和噪音。通过主轴中心孔补气,可减小尾水管内的真空度,破坏尾水管内的螺旋形涡带的形成和压力脉动、转轮的汽蚀等,从而保证机组的安全稳定运行。参1

 
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