发电机层 meaning in English
generator floor
Examples
- This paper explores the application of laminated air condition technique of high space through the model experiment of stratification air condition in the powerhouse of three - gorges hydropower station
本论文结合三峡电站主厂房发电机层分层空调热态模型试验，对高大空间分层空调技术的应用进行研究。 - So , it ’ s of particularity and application value to study the air distribution of the station . according to the air ventilation and air conditioning ’ s model experiment of the thermal environment ’ s peculiarity in the underground powerhouses of the langya - mountain hydropower station , this paper presents the research on the distribution of temperature and velocity in the main underground working units
本文结合琅琊山抽水蓄能电站地下主厂房热态模型试验项目的后期模型试验研究任务,进行该电站顶送风地下主厂房通风空调热环境特性的模型试验和数值计算,着重对地下主厂房发电机层的气流组织优化及空间温度和速度分布性状进行研究。 - According to thermal state similitude model experiment of the langya mountain hydropower station , we adopt different velocity of air ventilation and exclude air proportion of upriver and downriver , this paper contrast the air distribution of the dynamo floor on each method , and educe the best projects of arch crest supply air that adapt to langya mountain hydropower station ’ s dynamo floor : g = 17 . 4 10 ~ 4m ~ 3 / h , 22 vents , d = 600mm , the scale of volume 1 : 3 , t0 = 16 . 9 . it ’ s also thought that improved any side of volume can reduce its temperature . when study on the air supply of langya mountain hydropower station ’ s underground dynamo floor by cfd software , it proved that cfd software is correct when compare with model experiment . when arrange the number of 5 kinds of vents , it concluded that the number of vents 14 to 22 , it can ’ t change velocity , in 36 to 40 can lead to reduction of velocity . when vent in 14 to 36 , the parameter kt doesn ’ t change , when the number is as large as 36 , kt reduces
在此基础上,模拟了5种风口布置方案和送风量的改变对发电机层温度场和速度场的影响,获得了些可供参考的结论:在风量和送风速度不变的条件下,风口个数在( 14 ~ 22 )小范围变化时,工作区平均风速基本不变,大幅度增加风口个数( 36 ~ 44 )就会导致工作区平均风速的降低,风口数在14 ~ 36之间对工作区的温度不均匀系数影响不大,当风口数> 36时,温度不均匀系数随着风口数的增多而变小,速度不均匀系数一直随着风口数的增加而减少;在风口布置和尺寸不变的情况下,送风量变化时,工作区平均温度随送风量增大而降低,平均温度的降低量逐渐趋于减少,能量利用系数先是随着送风量的增加而增大,后随送风量增加而减少。 - Based on the vibration test in yantan hydropower house , in this paper the author adopt les method which belong to three dimensions unsteady turbulent flow numerical analysis to simulate vibration resource characteristics of hydrogenerator set , a harmonic vibration model of powerhouse substructure is put forward to carry out firstly a precise modal analysis and dynamic response analysis for generator floor . the numerical calculation results agree well with the surveyed data in situ
本文结合岩滩水电站厂房振动的试验研究，采用非定常湍流数值分析的大涡模拟方法进行混流机组水力振动振源模拟；提出一种水电站厂房下部结构简谐振动模型，首次进行了发电机层楼板结构的精确模态分析和水力激振荷载下的动力响应分析，各项计算结果与实测数据吻合良好。 - In chapter 4 , the model - building principle and calculating method of finite element dynamic analysis for large - sized assembled structure are discussed . the substructure model for hydropower house vibration analysis is established to obtain precise modal of generator floor . the harmonic vibration assumption is adopted to calculate house structure ' s dynamic response from hydraulic excitation force of hydraulic turbine generator unit
第四章讨论了大型组合结构有限元动力分析的建模原则和计算方法，建立水电站厂房振动分析的下部结构模型，对岩滩厂房进行整体模态分析，较准确地得出发电机层楼板自振特性；同时引进简谐振动假定，迸行了机组水力振动作用下的厂房结构的动力响应分析。