螺旋提水機 的英文怎麼說
中文拼音 [luóxuándīshuǐjī]
螺旋提水機
英文
inclined archimedean screw pump- 螺 : 1. [動物學] (軟體動物) spiral shell; snail; conch 2. (螺旋形的指紋) whorl (in fingerprint)
- 旋 : 旋Ⅰ動詞1 (旋轉) whirl 2 (用車床切削或用刀子轉著圈地削) turn sth on a lathe; lathe; pare Ⅱ名詞...
- 提 : 提動詞(垂手拿著) carry (in one's hand with the arm down)
- 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...
- 機 : machineengine
- 螺旋 : 1 (具有螺紋的圓柱體 屬于斜面類的簡單機械) corkscrewspin; screw; spiral; helix 2 (螺旋現象;尾旋...
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In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively
本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討,取得以下主要成果:一、結合小灣工程導流洞改建,對高水頭( 252m ) 、大泄流量( 1400m ~ 3 s )條件下旋流式豎井中的水流運動特徵進行了比較全面的測量,包括空腔形態、徑向流速分佈及井壁壓強等;二、提出了豎井空腔段螺旋水流水力計算方法,其計算結果與實測值吻合良好;三、利用試驗與計算結果,對旋流式豎井的消能機理進行了探討,對豎井各部分的消能能力有了總體認識;四、對豎井下部消力井的合理井深進行了優化試驗研究,發現消力井合理深度為0 . 9d左右;五、通過試驗研究,歸納出豎井水流總摻氣量估算方法,為導流洞排氣方案的設計提供了參考依據;六、在高水頭、大流量條件下,豎井空腔段下部流速很高,盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓,但空化數依然較低,因此豎井的空化空蝕始終是工程界關注的重大問題。Abstract : based on problems occurred during the service of the ls spiral conveyer, such as, jam of uncharging orifice, short usefull life of the drop - hanger bearings, easy rupture of connecting parts ; quick wear of spiral vane, etc. and according to the practice of casting process, analysis of break downs, the author put forward the improvement ideas in order to promote the level of the design and manufacture for spiral conveyers
文摘:針對ls型輸送機使用中存在的一些問題,如卸料口積料堵塞、吊軸承使用壽命短、連接件易斷裂、螺旋葉片磨損快等問題,依據在鑄造生產中的使用實踐,進行故障分析,提出了改進思路,以利提高螺旋輸送機整體設計和製造水平。An aircraft powered by a conventional propeller and supported in flight by a freewheeling, horizontal rotor that provides lift
旋翼機在飛行中以常規的螺旋槳來驅動並靠慣性滑行支持的,提供升力的水平旋轉儀By comparing the biological characteristics of original normal filament, linear filament and the curved filament retransited from linear filament, certain evidence of the morphologic variation regulated by a special transposon are detected on the level of protein and dna, which will help us to discover the mechanisms of this morphologic variation on molecular genetics level and solve the problem in production of spirulina in large scale
在比較了正常藻絲體、變直藻絲體及回復正常螺旋形態的藻絲體一組材料生物學特性的基礎上,進一步在蛋白質及dna水平上找到了轉座子調控此形態變異的某些證據,為闡明螺旋藻形態變異與重建的分子遺傳學機制以及解決螺旋藻大規模生產的實際問題提供理論依據。What is new is the application, which by an inversion of the energy flow in its operation, turns the archimedes screw trough pump into a power generator for the extraction of energy
水力螺旋發電機的獨到之處在於對水流能量進行逆向利用,把阿基米德螺旋泵轉變成一個可以從水流中提取能量的發電機。The purpose of this study is to investigate the formation of liquid falling film and its flow behavior on the surface of a horizontal twisted and fluted tube used in the case of wet flue gas desulfurization, desalination, and so on
本文從理論上研究了水平螺旋槽管壁面液膜的形成機理及流動特性,為工業生產過程中高效換熱器的應用提供理論基礎。本文做的主要工作有: 1分享友人