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水轮机安装高程     
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  “水轮机安装高程”译为未确定词的双语例句
     Test and study on setting height of water turbine in silt-laden river
     含沙河流水轮机安装高程的选定试验研究
短句来源
     UP to now, the setting height of the turbine in clear water has been determined by the cavitation number which limits the cavitation conditions.
     迄今为止,凡在清水条件下水轮机安装高程都是以限制空蚀条件的空化数来确定的。
短句来源
     In this paper, the simillar problems encounted in Ouyang sea water power station and Wanjiazhai hydropower station will be introduced and discussed, the reason of causing low load water pressure pulsation area will be analyzed and the method of solving the problem will be settled. The problems to be pay attention to and the mesures for selection design of turbines, the manufaction of turbine and the design of power station, reasonably select installation elevation for turbines, the operating management of turbine units are also put forward.
     将在湖南欧阳海水电站、黄河万家寨水电站试验中遇到的此方面问题进行介绍和探讨,分析了水轮机低负荷水压脉动区产生的原因和问题的解决方法,提出了在水轮机选型设计、水轮机及电站设计制造、合理选择水轮机安装高程、水轮发电机组运行管理等方面应注意的问题和解决措施。
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  相似匹配句对
     Test and study on setting height of water turbine in silt-laden river
     含沙河流水轮机安装高程的选定试验研究
短句来源
     Installation of Spiral Cases for 710 MW Turbines
     三峡电站710MW水轮机蜗壳安装
短句来源
     Installing Analysis of Burying Part of Turbine in Hydrodynamic-power Station
     小型水电站水轮机埋设部件的安装分析
短句来源
     The Selection and Influence of Turbine Installation Elevation for Underground Power Station
     地下厂房机组安装高程的确定及影响
短句来源
     The selection of turbineelevation should use systematic analysis and computation method ,far from the ordinary axis-flowturbine.
     其安装高程选择应进行系统分析与计算,而不同于一般轴流式水轮机
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Shisanling Pumped-storage Power Plant have many main characteristics which is only owned by Pumped-storagePower Plant, such as, high head (Hmax=418 m), big installed capacity (4×200 MW ), high speed of generatingunit (rpm = 500 r/min), reversible flow, low turbine selling (Hs=- 56 m ), frsquent and reversible load changes,turbulent flow in the turbine, and creating a huge hydraulic pulse load with different frequencies which could induced vibration. In order to solve the above-mentioned problems,some characteristics...

Shisanling Pumped-storage Power Plant have many main characteristics which is only owned by Pumped-storagePower Plant, such as, high head (Hmax=418 m), big installed capacity (4×200 MW ), high speed of generatingunit (rpm = 500 r/min), reversible flow, low turbine selling (Hs=- 56 m ), frsquent and reversible load changes,turbulent flow in the turbine, and creating a huge hydraulic pulse load with different frequencies which could induced vibration. In order to solve the above-mentioned problems,some characteristics have been created in the planning and operation, the general layout, and the design of main structrues of Shisanling Pumped-storage PowerPlant.

鉴于十三陵抽水蓄能电站具有水头高、容量大、机组转速高、水轮机安装高程低、频繁的负荷变化和负荷反向转换等特点.在其设计中.从规划到运行、枢组总体布置、主要建筑物设计、环境影响评价等诸方面采取了一系列行之有效的措施。在此基础上,该电站得以成功建设。

UP to now, the setting height of the turbine in clear water has been determined by the cavitation number which limits the cavitation conditions. But for those turbines in silt-laden river, because of the wear by sediment and the interaction between the wear and cavitation, the setting height of turbine would influence the investment and safe and stable operation of the hydropower station. Taking different safety setting height and the sediment content in the river as the test conditions, and selecting the most...

UP to now, the setting height of the turbine in clear water has been determined by the cavitation number which limits the cavitation conditions. But for those turbines in silt-laden river, because of the wear by sediment and the interaction between the wear and cavitation, the setting height of turbine would influence the investment and safe and stable operation of the hydropower station. Taking different safety setting height and the sediment content in the river as the test conditions, and selecting the most favorable setting height according to the weight-loss ratio of metal wear is a new method. And it is the first practice not only in domestic but also in foreign countries.

迄今为止,凡在清水条件下水轮机安装高程都是以限制空蚀条件的空化数来确定的。但在含沙河流中,由于泥沙磨损及其与空蚀的相互影响,其安装高程的合理与否,将影响水电站的投资和安全稳定运行。用不同的安全高程和水流含沙量作为试验条件,按金属磨蚀失重率来优选最有利安装高程,是一种新的方法,这在国内外还是首次。

Most of unstable operating problems of mixed flow turbines are well known and now there are some feasible measures can be used to solve them. But the research result for a large number of site tests show that in some power plants, the problem of one pulsation frequency higher than a strong water pressure pulsation area of unit rotation frequency is existed, the units can produce strong vibration in this area and safety operation can't be ensured. In this paper, the simillar problems encounted in Ouyang sea water...

Most of unstable operating problems of mixed flow turbines are well known and now there are some feasible measures can be used to solve them. But the research result for a large number of site tests show that in some power plants, the problem of one pulsation frequency higher than a strong water pressure pulsation area of unit rotation frequency is existed, the units can produce strong vibration in this area and safety operation can't be ensured. In this paper, the simillar problems encounted in Ouyang sea water power station and Wanjiazhai hydropower station will be introduced and discussed, the reason of causing low load water pressure pulsation area will be analyzed and the method of solving the problem will be settled. The problems to be pay attention to and the mesures for selection design of turbines, the manufaction of turbine and the design of power station, reasonably select installation elevation for turbines, the operating management of turbine units are also put forward.

混流式水轮机组不稳定运行问题多数已被人们所认识,并有可行的工程措施予以解决。然而大量的现场试验研究结果表明在某些电站,存在一个脉动频率略高于机组转速频率的强水压脉动区,机组在此区域产生强烈振动,不能保证安全运行。将在湖南欧阳海水电站、黄河万家寨水电站试验中遇到的此方面问题进行介绍和探讨,分析了水轮机低负荷水压脉动区产生的原因和问题的解决方法,提出了在水轮机选型设计、水轮机及电站设计制造、合理选择水轮机安装高程、水轮发电机组运行管理等方面应注意的问题和解决措施。

 
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