水力壓頭 的英文怎麼說

中文拼音 [shuǐtóu]
水力壓頭 英文
hydraulic head
  • : 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...
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  • : 壓構詞成分。
  1. Because of the technical complexity of the turbine for the three gorges project and on the basis of several important technical problems which have been defined in the international bidding documents for 14 generating units in the left bank power station, the owner of the project has decided another some important technical problems based on appraisal and comparison in the bid appraisal stage after the bidding documents are analyzed and the tender documents are cleared by the tenderers

    由於三峽工程輪機技術上的復雜性和挑戰性,在左岸電站14臺機組國際招標文件已明確了若干重大技術問題的基礎上,在機組議評標階段,對招標文件進行分析和投標商對投標文件進行澄清說明后,經評議比選,業主又決策了幾個重大技術問題,主要有:輪機設計的確定,負傾角葉片輪機的應用,兩套設計,舍棄初期轉輪,蝸殼進行試驗等。
  2. The additional flow is formed by the device of dentoid baffle, and the application of the device of dentoid baffle cooperated with a stilling basin has been investigated by systematic model tests. based on the research results, the hydraulic problems such as the characteristics of hydrodynamic pressure and cavitation on the head of the denotid baffle, the properties of flow under the condition that the device of denotid baffle is used with a stilling basin, the hydraulic computation about a stilling basin, the estimation of energy dissipation and its various affection factors, the mechanism and effect of energy dissipation, and distributions of velocity and pressure and aerating concentration, etc, have been analyzed ; the method and step of hydraulic design of device of denotid baffle by which the additional flow is produced has also been proposed

    文中利用齒墩設施實現附加射流,對齒墩設施與消池聯合應用進行了大量的和系統的模型試驗,分析研究了中低佛勞德數條件下,齒墩墩的動強及空化特性,齒墩設施與消池聯合應用時的流態特性,消池的計算,消能量的估算及其各種影響因素,消能機理和效果,消池內的流速、強特性,摻氣濃度分佈等學問題,並提出了實現附加射流齒墩設施的設計方法和步驟。
  3. 2. based on the results of experimental data of the tailrace surge tank of yi xing pumped - storage station in jiangsu province, this research investigates the methods for the head loss coefficients of throttled surge tank with linking pipe by means of the method which incorporates experimental results with theoretical analysis

    結合江蘇宜興抽蓄能電站尾調模型試驗成果,採用理論計算與模型試驗結果相結合的方法,對有連接管的阻抗式調室局部損失系數的計算方法進行了討論。
  4. 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、大泄流量情況時存在的一些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( 252m ) 、大泄流量( 1400m ~ 3 s )條件下旋流式豎井中的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強等;二、提出了豎井空腔段螺旋計算方法,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有了總體認識;四、對豎井下部消井的合理井深進行了優化試驗研究,發現消井合理深度為0 . 9d左右;五、通過試驗研究,歸納出豎井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、大流量條件下,豎井空腔段下部流速很高,盡管流螺旋運動引起的離心可以確保井壁強保持正,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。
  5. Water - methanol pressure connections. nominal dimension 38 mm

    甲醇.標稱尺寸38mm
  6. Water - methanol pressure connections. nominal dimension 19 mm

    甲醇.標稱尺寸19mm
  7. Analysis of a welding structure destroy of a pressure tube capping

    管封焊接結構事故分析
  8. The tension force, shear forces ( including pushing force, cutting force and friction force ), impulse force, hydrodynamic drag on the suction pipes, and the force resulted from the pressure difference, etc, are the main forces for detail discussion in this paper

    詳細討論了主要作用:在波浪補償器作用下的纜繩拉、耙與海床間的土壤剪切、作用在耙吸管上的流阻及由於差在耙處產生的推動等。
  9. Comb tenon docking machine, refers meets machine, meets the wooden devices mh1520 - 1560 series product characteristic : the high performance water hydraulic pressure dynamic system, the engaging force strong, the movement is smooth ; ( is mad ) the fluid cylinder for through the iso9001 authentication famous brand goods ; the unique design automatic accent compression connection puts all in one load sets, guarantees the entire supported joint tenon tail engaging force to be consistent, to be reliable ; the docking pressure may surpass 10 tons most greatly

    梳齒榫對接機、指接機、接木機mh1520 - 1560系列產品特點:高性能系統,接合強、動作順暢; (氣)液缸為通過iso9001認證的名牌產品;獨特設計的自動調接合裝置,確保整支接榫尾接合一致、牢固;對接最大可超過10噸。
  10. The direct optimal model of multi - objective mixed discrete variables for lager - scale water supply system was established, by replacing complicated network hydraulic equation with nodal pressures macroscopic model and relationship model between pump stations flow and head in water supply systems without tanks or towers, genetic algorithm was developed to solve the direct optimal model

    以測宏觀模型、源供量和源供之間的關系模型替代復雜的管網平衡方程,建立了大型供系統的多目標混合離散變量的直接優化調度模型。在沒有池和塔的供系統中,利用遺傳演算法對直接優化調度模型進行求解。
  11. The main achievements are as follows : it is verified that there is an unique mean square solution to the stochastic surge model ; the formulas for probability density function of head loss and the maximum relative surge level were deduced ; the joint probability density function for solving surge process and the mean head process of simple hydraulic system were also derived

    主要研究成果有:證明了調室涌浪隨機模型存在唯一的均方解;推導出了損失和最大相對涌浪值的密度函數計算公式;求解了調室涌浪解過程的聯合密度函數和簡單系統的均值過程等。
  12. For the sake of the research about hydroelectric interfere among machines, the article utilized the simulink in matlab as simulating tool, meanwhile established the simulating model about two high head diversion water turbines regulation system in violent fluctuating pressure sharing one head race tunnel and surge tank and one penstock. then calculated the load rejection transition process by means of the real parameters of a hydro power station, analysed the interfere of hydro power station safety and stable nenring brought by hydroelectric interfere and put forward a series of measures that lightening the hydroelectric interfere

    為了研究機組間的干擾,本文採用matlab下的simulink作為模擬工具,建立共用有管道、調井、主管的兩臺高輪機調節系統大波動時的模擬模型,引入實際電站的參數,對甩負荷過渡過程進行了模擬計算,分析干擾對電站安全、穩定運行所造成的影響,並提出了一系列減輕干擾的措施。
  13. Connect wood machine product characteristic : the high performance water hydraulic pressure dynamic system, the engaging force strong, the movement is smooth ; ( is mad ) the fluid cylinder for through the iso9001 authentication famous brand goods ; the unique design automatic accent compression connection puts all in one load sets, guarantees the entire supported joint tenon tail engaging force to be consistent, to be reliable ; the docking pressure may surpass 10 tons most greatly

    接木機產品特點:高性能系統,接合強、動作順暢; (氣)液缸為通過iso9001認證的名牌產品;獨特設計的自動調接合裝置,確保整支接榫尾接合一致、牢固;對接最大可超過10噸。
  14. The hydraulic analysis of pump for suction penetration of bucket foundation as well as the pressure head relation between bucket cavity and pump inlet for different water depths and different pump mounting heights are described in this paper

    對桶形基礎平臺負沉貫過程中汲泵機進行了初步分析,討論了不同深、不同泵機安裝高度情況下,桶腔和泵機進口之間的關系。
  15. With the in - built drip irrigation belt and thin wall chip irrigation belt taken as examples, the flow rate distribution and hydraulic losses of drippers along capillary tubes at different inlet pressures were measured under the conditions of horizontal slope and slope gradients of 0. 5 % and 1 %, then the uniformity of capillary tubes was calculated at different slope gradients and pressures in consideration of the manufacture deviation of drippers

    摘要以內鑲式滴灌帶和薄壁滴灌帶為研究對象,測定了平坡、 0 . 5 %坡度和1 %坡度時,不同入口下滴沿毛管的流量分佈和損失,並結合滴的製造偏差,計算得出不同坡度和條件下滴灌毛管的均勻度。
  16. Cast iron special castings for asbestos cement pressure pipe lines ; bends

    石棉管道用鑄鐵的專用鑄件.彎管
  17. Water may press the body downwards to cure headache, eye pain and muscle strain etc

    量自上而下集中身體,可以治痛、眼睛酸痛、肌肉緊張等不適之癥。
  18. Product characteristic : the high performance water hydraulic pressure dynamic system, the engaging force strong, the movement is smooth ; ( is mad ) the fluid cylinder for through the iso9001 authentication famous br goods ; the unique design automatic accent compression connection puts all in one load sets, guarantees the entire supported joint tenon tail engaging force to be consistent, to be reliable ; the docking pressure may surpass 10 tons most greatly

    產品特點:高性能系統,接合強、動作順暢; (氣)液缸為通過iso9001認證的名牌產品;獨特設計的自動調接合裝置,確保整支接榫尾接合一致、牢固;對接最大可超過10噸。
  19. Product characteristic : the high performance water hydraulic pressure dynamic system, the engaging force strong, the movement is smooth ; ( is mad ) the fluid cylinder for through the iso9001 authentication famous brand goods ; the unique design automatic accent compression connection puts all in one load sets, guarantees the entire supported joint tenon tail engaging force to be consistent, to be reliable ; the docking pressure may surpass 10 tons most greatly

    產品特點:高性能系統,接合強、動作順暢; (氣)液缸為通過iso9001認證的名牌產品;獨特設計的自動調接合裝置,確保整支接榫尾接合一致、牢固;對接最大可超過10噸。
  20. Based on the principle of hydraulics, the general equation for head loss and the formula for calculation of pressure head along the flexible hoses were worked out, and the method for determination of the maximum and minimum heads and their positions was given

    摘要根據學原理建立了軟管沿程損失的一般方程,得出了軟管沿程的計算公式,給出了確定最大和最小位置及大小的方法,從計算結果與試驗實測結果的對比看,具有一定的合理性。
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