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1)  mechanical water ring vacuum pump
机械式水环真空泵
1.
The paper introduced the working characteristics of steam-jet ejector,water-jet ejector and mechanical water ring vacuum pump and analyzed their features,which provides theory basis for selecting correctly evacuating equipment.
阐述了射汽抽气器、射水抽气器和机械式水环真空泵的工作特点和特性分析,为选择抽气装置给出了理论根据。
2)  water-ring vacuum pump
水环式真空泵
1.
This article analyzes the working principle of the water-ring vacuum pump and determines a reform plan which can resolve this problem.
水环式真空泵在夏季往往因工作水温度高发生汽蚀,影响设备安全稳定运行。
2.
In the large condensing power plant the water-ring vacuum pump usually used as condenser air exhaust e- quipment.
大型凝汽式电厂多采用水环式真空泵作为凝汽器抽气设备。
3.
There are four 300 MW condensing turbines installed in project phase I of a power generation corporation,and two 2BW4353-0 type water-ring vacuum pumps were configured for each unit.
某发电公司一期工程安装4台300MW凝汽式汽轮机,每台机组配备2台2BW4353-0型水环式真空泵。
3)  liquid ring vacuum pump
水环式真空泵
1.
Some technical measures to improve the vacuum system are put forward, hence liquid ring vacuum pump is feasible in the CZ crystal grower, which is conducive to good performance of the CZ crystal grower.
分析了采用滑阀式真空泵直拉单晶炉真空系统的缺点;通过改造真空系统,将水环式真空泵应用在直拉单晶炉设备上,提高了直拉单晶炉的整体性能。
2.
The text introduces the theory and operation characteristic of liquid ring vacuum pump and auxiliary equipment,It has important technology reference value to electric power industry.
介绍了水环式真空泵的原理与运行特点,对其附属设备也作了详细介绍。
4)  water ring vacuum pump
水环式真空泵
1.
The working mechanism,performance in operation,and the influence of working water temperature upon air-extracting capability of the water ring vacuum pump have been analysed.
分析了水环式真空泵的工作机理、运行特性、工作水温度对抽气能力的影响,研究表明水环式真空泵的吸气质量流量与吸气压力成正比,为此建立了更符合实际要求的水环式真空泵数学模型。
5)  Mechanical vacuum pump
机械真空泵
1.
Mechanical vacuum pump is an important part of vacuum system.
机械真空泵是组成真空系统的必不可少的部分,它的振动必须严格控制,因为泵的振动不仅反映泵的设计、制造水平。
6)  Nash pump
纳氏泵,水环式真空泵
补充资料:水环式真空泵
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性质:转子在泵内旋转时形成水环的真空泵。泵体是圆筒形,中有偏心装置的转子,转子上有叶板。开动前,泵内充入一定高度的水(或其他液体)。当转子旋转时,水被搅动而旋转并产生离心力,沿泵体形成一定厚度的水环。由于转子的旋转,轴中心不与泵体的中心重合而水环的圆心也不与转子的中心重合。这样,插入水环中的叶板间就形成了水室逐渐增大,可将外部气体通过吸入孔隙而吸人小室内。在旋转的后一半,小室逐渐减小,使气体压缩而从排出孔隙排出。转子不断地旋转,就可将气体不断地吸人和排出。属于湿式真空泵,最高真空度可达85%。构造简单紧凑,没有阀等机件,很少堵塞。也可用于输送气体,但不宜用于含有固体颗粒的气体。

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