轉輪葉 的英文怎麼說
中文拼音 [zhuǎnlúnyè]
轉輪葉
英文
vane, runner-
Study of balance weight in wheel vane welding installation
轉輪葉片裝焊配重工藝研究The main research outcomes were as follows : ( 1 ) the paper applied quasi - three dimensional design model and optimization design model based on si flow surface that was effected by runner ( impeller ) and guide vane jointly. the vortex flow, blade thickness limitation and runner ( impeller ) blade force functions were taken into account. the paper got the improved runners of hl240 type, which were runner hlx240d and runner hlx240e
主要成果有: ( 1 )應用考慮轉輪來流有旋、葉片有限厚及轉輪(葉輪)葉片力作用的轉輪(葉輪)與導葉聯合作用的基於s _ 1流面的準三維設計模型和優化設計模型,研究出了hl240的改進型轉輪: hlx240d和hlx240e 。The repair and maintenance work of the turbine blades is the international problem for all the hydro power plant. a lot of manpower and resources is costed every year, especially in china, because the rivers contain plentiful sand, the problem is more serious
水輪機轉輪葉片的維修與維護一直是各國水電部門的一項重要工作,每年都要對其耗費巨大的人力、物力、財力,尤其是我國河流泥沙含量大,此項工作就更為艱巨。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。At present, the means for repairing hydraulic turbine blades in our country are still manual weld and manual polish. the working condition is bad and labour intensity great for workers and overhaul efficiency low and inferior
目前,國內水輪機轉輪葉片修復仍採用手工補焊、人工打磨等檢修手段,工人勞動環境惡劣,勞動強度大,且檢修效率低,質量差。The result indicates that the maximum stress on the runner is mainly in proportion to the turbine output
結果表明在大部分工況下該轉輪葉片最大靜應力基本上與水輪機功率成線性關系。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。The repair and preservation work of the turbine blades is the international problem for all the hydro power plant
對水輪機轉輪葉片的維護與維修是各國水電部門的一項重要工作,每年都要在其上耗費大量的人力、物力、財力。A measurement method applied to detect the dfects of the turbine blades
水輪機轉輪葉片表面缺陷的檢測方法Through repairing the worn parts of four hydropower stations of xinzhuang, zaoqi, suide and qiemo, and taking some comprehensive anti - abrasion measures, such as checking and repairing the runner blade, cutting the head of blade into round shape, adding an apron to the outer edge of blade and increasing a guiding plate in the head of blade, a good effectiveness has been gained so that it increases the output of generating unit and enhances the abrasion resistant capacity
通過對新莊、棗渠、綏德、且末4個水電站的磨蝕破壞部件的修復、轉輪葉片測型與修型、葉片頭部割圓角、葉片外緣加裙邊、頭部加導流板等抗磨蝕措施的綜合治理,取得較好效果,使機組出力增加、抗磨蝕能力提高。The computational method of the stress due to the hydraulic reason is an important problem of the hydraulic machinery
長期以來人們一直在尋找由於水力激勵引起轉輪葉片應力特性的計算方法。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。Cracking reasons of the turbine runner are extensive. the fact shows that the leading reason induced cracking is exorbitant stress
水輪機葉片開裂的原因是多方面的,實踐表明:應力過高是導致轉輪葉片開裂最為主要的原因。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。The reconstruction project of turbomachinery gets significant social benefits and economical benefits according to the in - situ tests results
根據轉輪葉片切邊后現場驗證試驗結果分析,水輪機的增容改造取得了明顯的經濟效益和社會效益。Introducing and exploring a repair robot used for welding and grinding on the turbine blades is very useful for those plants
為了減少此項工作的勞動強度,提高維護、維修的效率,我們引進並自行開發了用於水輪機轉輪葉片修復用的專用機器人。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。Urbular turbine generator set is suitable for heads from 2m to 15m and large discnarge. its feature is that water flow is axial throughout the passage from the inlet to the outlet, so that the passage is straight conduit essentially. the tubular turbine generator set is characterized by good characteristic of water flow and high efficiency. etc
混流式水輪發電機組廣泛適用於高中低各種水頭,一般從10米至300米,其特點是水流流經轉輪葉片時先沿著幅向進入,然後逐漸變成軸向離開,因而混流式水輪發電機組具有運行可靠,結構簡單,平均效率較高等特點。In this paper, at first the cfd simulation including the spiral case, stay vane, guide vane, runner vane and draft tube at different operation points is studied, then the result of the pressure distribution on runner blade is provided for the runner structural simulation by fluid - structure interaction ( fsi ) method
本文首先對混流式水輪機全流道內流場進行了多工況的cfd計算,得到不同工況下轉輪葉片表面水壓力載荷,並利用順序流固耦合方法對轉輪在各種工況下的應力特性進行計算。In fact, the outlet flow of vane in the hydroelectric set is non - uniform flow for a variety of possible reasons. the flow is unsteady flow relative to vane and blade, and it is the main factor that affect self - excited vibration and dynamic characteristic of guide vane and hydraulic - turbine, which affect directly the power set to run safely and stably
非均勻來流相對于導葉、葉片必然是一種非定常流。這種非定常流造成導葉和轉輪葉片的激振,是產生導葉和葉片動應力,改變它們頻率的最主要因素,而導葉和葉片的動力特性直接影響水輪機的穩定性。分享友人