混流水輪機 的英文怎麼說
中文拼音 [húnliúshuǐlúnjī]
混流水輪機
英文
mixed-flow water turbine- 混 : 混形容詞1. (渾濁) muddy; turbid2. (糊塗; 不明事理) foolish; stupid
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 輪 : Ⅰ名1 (輪子) wheel 2 (像輪子的東西) wheel like object; ring; disc 3 (輪船) steamer; steamboa...
- 機 : machineengine
- 流水 : 1 (流動的水) running water; stream2 (舊時指商店的銷貨額) turnover (in business)流水搬運作用...
- 輪機 : turbine
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Many large capacity turbine runners in commercial running have come to cracks or vibration problems with different extent in china. therefore, to ensure the large francis turbines running safely and stably is an important issue on design and type selection research
在我國陸續投運的大型水輪機轉輪相繼不同程度地出現振動與裂紋,因此,保證大型混流式水輪機的安全穩定運行就成為設計選型研究的重要問題。The paper lucubrated on retrofit design of francis runner hl240
本文對hl240混流式水輪機轉輪的改型設計進行了深入的研究。Francis turbine is applicable for the middle and low water level power station, both have vertical and horizontal structure, and commonly designed in the scroll
混流式水輪機用於中、低水頭電站,有臥式、立式兩種,一般採用金屬蝸殼。In chapter 3, the subgrid eddy - viscosity model for large eddy simulation is applied to calculate the three dimensions unsteady periodic turbulent flow in yantan francis turbine. the pulsating characteristics of some main physical parameters in flow field are found. the calculated axial water thrust of hydraulic turbine agrees with the model - test value
第三章採用大渦模擬亞格子渦粘模型,對巖灘混流式水輪機的流場進行三維非定常湍流分析,得到了流場中各物理量的脈動特性,計算出ms的軸向水推力與模型試驗值大小相當;同時論證了對于下機架承重的混流式水輪發電機組可採用其推力軸承負荷作為水電站廠房振動的最大垂直激振荷載。Design of main structures at yaoheba hydropower station
混流式水輪機轉輪流道數據庫系統的設計及應用研究The transient cfd simulation including the spiral case, stay vane, guide vane, runner vane and draft tube at different operation points is studied fitly, then the result of the pressure distribution on runner blade is provided for the runner transient structural simulation by fluid - structure interaction ( fsi ) method
文中首先對高水頭小負荷的渦帶工況下混流式水輪機內流場進行非定常cfd計算,得到渦帶工況下葉片表面不同時刻的水壓力載荷,並利用流固耦合方法對轉輪進行結構場瞬態特性計算,分析轉輪葉片的動應力特性。As the basic work of the designing and evaluating of fuzzy gpss, the mathematic models of simple hydro - electricity system stability analyzing and controlling are founded and summarized which include the linearized model of hydraulic system - hydoturbine based on the linearized model of hydraulic system considering elastic water hammer and the linearized model of francies turbine, two different linearized model of single - machine infinite - bus system ( k1 - k6 model and c1 - c12 model ), the nonlinear model of single - machine infinite - bus system based on three - order model of synchronous generator, the model of exciting system and the model of governor
作為設計和評價水電機組模糊gpss的基礎,本文歸納建立了簡單水電系統穩定分析與控制的數學模型,它包括:計及彈性水擊的水力系統線性化模型、混流式水輪機線性化模型以及在此基礎上的水力系統?水輪機線性化模型;單機無窮大系統兩種詳細程度不同的線性化模型,即k _ 1 - k _ 6模型和c _ 1 - c _ ( 12 )模型;基於同步發電機三階模型的單機無窮大系統非線性模型;勵磁系統和調速器模型等。The result indicates that the dynamic stress caused by hydraulic pulse at partial load is one of the important reason of the fatigue and cracks of the runner
結果表明由於水壓力脈動引起的轉輪葉片上的振動交變動應力是混流式水輪機疲勞破壞的主要原因之一。Numerical simulation of the steady cavitating turbulent flow in the whole flow passage of a kaplan turbine has been carried out by using a full cavitation model and a mixture two - phase flow model
摘要採用一種完整空化模型和一種混合流體兩相流模型,對軸流式水輪機全流道內的定常空化湍流流動進行了數值模擬。Crown and band castings for francis turbine welded runner
混流式水輪機焊接轉輪上冠下環鑄件Numerical realization of francis turbine blade design and wooden patterns
混流式水輪機葉片設計與木模圖的數值實現Technological guide for erection and welding of split runner of francis turbine
混流式水輪機分瓣轉輪組裝焊接.工藝導則The development of the dynamic test - bed for fluid flow machine, one of the sub - projects within the " national 211 project ", can carry out the tests on the static and dynamic properties of not only both the hydraulic turbine units and water pump flits with the types of axial - flow, mixed - flow and inclined - flow, but also the centrifugal pump unit ; of which the testing process is automatically controlled by a pc with higher testing precision
摘要流體機械動態試驗臺是國家「 211工程」建設項目之一,可以進行軸流式(貫流式) 、混流式、斜流式水輪機組的靜特性、動特性試驗,也可以進行軸流式(貫流式) 、混流式、斜流式、離心式水泵機組的靜特性、動特性試驗,試驗過程由微型計算機自動控制,試驗精度高,操作方便、靈活。The francies " hydro turbine models are induced, comprising of the linear model based on the model characteristic curves, the linear model based on the internal characteristics description, the nonlinear model based on four - quadrant characteristics and simply analytic nonlinear model. as a result of comparison of these models, it is believed that these models have different traits and the proper model should be selected according to the study purpose and known conditions
歸納介紹了混流式水輪機的模型,包括基於模型綜合特性曲線的線性化模型、基於內特性描述的線性化模型、基於全特性曲線的非線性模型和簡單解析非線性模型等,對這些水輪機模型進行分析比較,認為它們的特點各有不同,應根據研究目的和已知條件來選擇合適的模型。Cracks in francis turbine runner blades threaten the safety, stability and economic profits of the hydropower station
摘要混流式水輪機轉輪葉片裂紋故障嚴重影響了水電站的安全穩定運行和經濟效益的發揮。Researches show that high dynamic stress caused by hydraulic loads is the most important reason of the fatigue and cracks of the runner
研究表明,水力激勵引起的混流式水輪機轉輪葉片動應力是引起葉片疲勞破壞的主要原因之一。Study on optimal design of francis and kaplan hydraulic turbine in sandy water
含沙水中混流和軸流式水輪機優化設計研究The consequence of computation indicated above method not only can approach turbine blade surface accurately but also can be provided for extend and intersection while the precision can be controlled. it realized anticipated goals of the application of turbine blade and engineering exercises. thus, it provide the foundation to the reconstruct and optimize design of turbine blade as well as the cam of turbine blade
算例結果表明,上述方法不僅可精確擬合混流式、軸流式水輪機轉輪葉片,而且還能對葉片進行求交、延展運算並控制精度,實現了nurbs曲面造型技術應用於水輪機葉片設計和工程實際的預期目標,為水輪機葉片的改型設計和優化設計、水輪機葉片的計算機輔助製造打下了基礎。Quality control in the process of assembling and jointing have interrupted francis turbine at lijiaxia hydropower station
李家峽水電站混流式水輪機分瓣轉輪組合與焊接過程中的質量控制Stainless steel blade castings for welded construction runner for francis hydraulic turbines
混流式水輪機焊接轉輪不銹鋼葉片鑄件分享友人