水力定型機 的英文怎麼說
中文拼音 [shuǐlìdìngxíngjī]
水力定型機
英文
hydraulic calibrating press- 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...
- 力 : 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...
- 定 : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
- 機 : machineengine
- 水力 : waterpower; hydraulic power水力剝離 [采礦工程] hydraulic stripping; strip with water; 水力采礦 hy...
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It has a certain meanings of the practical instructions and applications for the checking and repairing, installing, maintaining of the generator batteries of the kin ds of big or medium hydraulic power plants
這對各大中型水力發電廠機組的檢修、安裝、維護具有一定的實踐指導意義和應用價值。Energy losses leading to a decrease in head are also done away with, likewise losses in flow rate from the screening installations, both of which can have a detrimental effect on the efficiency of the facility. the constructional effort required for a hydrodynamic screw is small compared to that required for a turbine. if the compact version of a hydrodynamic screw hydrodynamic screw trough power take - off unit combined as a single unit is used, the constructional effort can be further reduced
水力螺旋機技術的優點有:無需監控系統,可自行調節水體供給和供給頻率運行效率高於水輪機和小型渦輪機效率梯度平穩轉速低20rpm - 80rpm ,運行穩定防磨損無需定期清潔,易維護對河道湖泊里的魚蝦無損害基礎工事少,安裝簡便無堵塞,無需隔欄裝置能量利用充分等。Working conditions and productive capacities of both drill carrier and carry - scraper used during mechanical cut and fill stopping activities in xinqiao mining cooperation ltd. are evaluated by field testing and theoretical analysis in this paper
摘要以新橋礦業有限責任公司大型機械化上向水平分層充填采礦法中使用的鑿巖臺車和鏟運機為研究對象,通過現場測定和理論分析相結合,評價了無軌設備的應用狀況和生產能力。In order to extend its potential usage, the small hydro turbine should have a simple design with high performance to secure the stable operation
為了使小型水輪機得到更廣泛的應用,必須設計出結構簡單、水力效率高的機器以確保運行穩定性。Mainly, the type of pump in the large - scale irrigation and drainage pumping station in our country is adjustable - blade propeller pump. we can regulate the pump ' s blade mounting angle following the variation of water level at the inlet and outlet of the station in order to control the discharge of pump, we also determine the number of running machines with machine ' s optimal combination. so we can reduce its energy consumption, and make it optimally and economically run
我國大部分大型電力排灌站所安裝的泵都為可調節葉片的軸流泵,這一有利條件使我們可以根據排灌站進、出口水位的變化來調節水泵的葉片角度,控制水泵的流量,併合理的確定開機臺數,通過機組間的優化組合,使整個泵站的能耗最少,達到整體最優、經濟運行的目的。The axial flow type turbines are available for hydrauric power resources of medium and low heads. ganfa manufactures both the propeller type fixed blade type and the kaplan type adjustable blade type turbines. the propeller type turbines are suitable for hydropower stations with small or medium capacities and heads, and relatively stable loads. the kaplan turbines are suitable for hydropower stations with medium or large capacities and heads, and relatively unstable loads
軸流式水輪機適應于開發中低水頭水力資源。我公司生產的軸流式水輪機按轉輪結構分為定槳zd轉槳zz兩種,定槳式一般適用於中小容量及水頭負荷變化較小的的水電站轉槳式多用於大中型電站及水頭負荷變化較大的水電站。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。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
本文結合巖灘水電站廠房振動的試驗研究,採用非定常湍流數值分析的大渦模擬方法進行混流機組水力振動振源模擬;提出一種水電站廠房下部結構簡諧振動模型,首次進行了發電機層樓板結構的精確模態分析和水力激振荷載下的動力響應分析,各項計算結果與實測數據吻合良好。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
第四章討論了大型組合結構有限元動力分析的建模原則和計算方法,建立水電站廠房振動分析的下部結構模型,對巖灘廠房進行整體模態分析,較準確地得出發電機層樓板自振特性;同時引進簡諧振動假定,迸行了機組水力振動作用下的廠房結構的動力響應分析。Based on the perturbation riccati transfer matrix method, the calculating program are developed. the program can be used to the perturbation analysis and the sensitivity analysis of the real and complex, the single and repeated eigenvalues and eigenvectors for lateral vibration of rod and beam structures, especially suitable to the perturbation analysis and the sensitivity analysis of eigenvalues and eigenvectors for rotordynamic systems ; 2. the perturbation riccati transfer matrix method was applied to identify the parameters of the rotor for a boiler supply pump, and the accurate dynamic model of the rotor was archived
該程序可以對桿、梁結構橫向彎曲振動的實數、復數的孤立和重頻特徵值問題進行攝動分析和靈敏度分析,特別是適合於轉子動力學系統特徵值和特徵向量問題的攝動分析和靈敏度分析; 2 、用攝動riccati傳遞矩陣方法解決了某電站鍋爐給水泵轉子的參數識別及動力模型修改的問題,並給出了該種型號的給水泵轉子的更準確的力學模型,為進一步的轉子動力學分析與設計奠定了可靠基礎; 3 、給出了攝動理論在相關領域如隨機特徵值分析、隨機振動響應分析、可靠性分析、靈敏度分析、優化設計以及參數識別中的應用公式。Evaporative cooling has been regarded as a new cooling technology on hydro - generator, and it not only could increase the ratio of material utilization and reduce the difficulties of making large - scale hydro - generators, the running difference in temperature, the stress of the generator ' s stator and the possibilities of the incidental occurrences, but also has better performance than internal water cooling
蒸發冷卻作為水輪發電機的一種新型冷卻技術,不僅可以提高材料利用率,減小特大型發電機製造難度,降低發電機定子繞組運行溫差和發電機定子的應力,減少事故隱患,更重要的是蒸發冷卻比水內冷具有更好的優越性。The oversimplified models can not reflect the mutual effect of hydraulic system and power system, and they may cause irrational conclusions when they are used in the studies on middle or long term stability, resynchronization of hydro turbine and generator and large - disturbance surge tank system that relate closely to the mutual effect of hydraulic system and power system or the auto governing
採用這種水或電的單方面簡化模型不能準確反映水力系統與電力系統的耦合作用,對于諸如電力系統中長期穩定、水輪發電機組再同步、調壓井系統大波動穩定等這些與水電耦合和自動調節作用密切相關的問題的研究,可能導致不合理的結論。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。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
為了研究機組間的水力干擾,本文採用matlab下的simulink作為模擬工具,建立共用有壓引水管道、調壓井、壓力主管的兩臺高水頭引水式水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,分析水力干擾對電站安全、穩定運行所造成的影響,並提出了一系列減輕水力干擾的措施。L. ruan, g. gu, x. tian “ numerical simulation for circulating systems and experimental comparison of the closed - loop, self - circulating evaporative cooling of hydro - generators ” 《 electrical engineering 》 vol86, no. 3
阮琳,顧國彪,田新東「大型蒸發冷卻水輪發電機的關鍵問題定子空心導線內兩相流摩擦阻力放大倍數的比較及修正建議」 《大電機技術》 , 2004 . 4Abstract : a brief introduction to scientific research in the three gorges project ( tgp ) and the applications of research achievements is given, which include treatment of newly slited layer on the foundation of the first stage earth - rock cofferdam, dumping bottom technique of river closure in deep water, construction of cut - off walls in the second stage earth - rock cofferdams, 3 - d computer simulation of river closure, concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete, deep sliding resistance and stability of the intake dam section, the section of the intake of the power station, the intake penstock of the power station, layout and hydraulics problems of shiplocks, stability of high slopes of shiplocks, and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700mw turbine generator units
文摘:介紹三峽工程的科研項目,綜述三峽工程開工以來的主要科研成果及工程應用情況,包括:一期土石圍堰基礎處理與施工技術;大江截流上下游土石圍堰平拋墊底研究;二期圍堰防滲工程研究;大江截流計算機科學管理;大壩混凝土澆築方案及主要施工機械選型;混凝土的原材料和耐久性優化試驗研究;大壩基礎深層抗滑穩定研究;三峽電站進水口型式研究;鋼襯鋼筋混凝土引水管道研究;蝸殼打壓、廠壩間伸縮節問題研究;永久船閘的引航道布置、輸水系統及水力學、高邊坡穩定、混凝土襯砌墻的結構與支護研究;特大型水輪發電機組的科學研究。A brief introduction to scientific research in the three gorges project ( tgp ) and the applications of research achievements is given, which include treatment of newly slited layer on the foundation of the first stage earth - rock cofferdam, dumping bottom technique of river closure in deep water, construction of cut - off walls in the second stage earth - rock cofferdams, 3 - d computer simulation of river closure, concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete, deep sliding resistance and stability of the intake dam section, the section of the intake of the power station, the intake penstock of the power station, layout and hydraulics problems of shiplocks, stability of high slopes of shiplocks, and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700mw turbine generator units
介紹三峽工程的科研項目,綜述三峽工程開工以來的主要科研成果及工程應用情況,包括:一期土石圍堰基礎處理與施工技術;大江截流上下游土石圍堰平拋墊底研究;二期圍堰防滲工程研究;大江截流計算機科學管理;大壩混凝土澆築方案及主要施工機械選型;混凝土的原材料和耐久性優化試驗研究;大壩基礎深層抗滑穩定研究;三峽電站進水口型式研究;鋼襯鋼筋混凝土引水管道研究;蝸殼打壓、廠壩間伸縮節問題研究;永久船閘的引航道布置、輸水系統及水力學、高邊坡穩定、混凝土襯砌墻的結構與支護研究;特大型水輪發電機組的科學研究。Then analytical measurements of the noise were carried out on both of the turbines by means of modern acoustic apparatus and a conclusion has been found that the noise of the concentrated wind energy turbine is lower than the one of the ordinary wind energy turbine and the root of the trouble to cause noise chiefly originates from the turbine blade. besides, the result of analytical measurement also reveals that the power output both of the wind energy turbines will increase with the increase of the wind speed and unfortunately does the noise too. in order to lower the noise, a measures of noise reduction have been advanced that an active method is to develop a wind energy turbine run at a lower rating of wind speed while the passive method is to adopt a board drilled tiny holes, having established a sound technological basis for the development of a kind of wind energy turbine of low noise and high level in the world
主要對濃縮風能型風力發電機在正常運轉時,噪聲產生的機理進行了理論分析研究,並與普通型風力發電機的噪聲進行了對比實驗分析;利用現代聲學測試手段對兩類機型進行測試與分析,得出濃縮風能型風力發電機產生噪聲低於普通型風力發電機和葉輪是風力發電機產生噪聲的主要部件的結論;通過對兩類機型的噪聲、輸出功率的測試,得出隨著風速的增加,兩類風力發電機的輸出功率在增加,產生的噪聲也在增加的結論;提出了進一步降低濃縮風能型風力發電機噪聲的措施,從主動降噪方面,研製低額定轉速的發電機;從被動降噪方面,採用微孔穿板的降噪結構;為研究開發一種國際上低噪聲、高水平的風力發電機打下了良好的技術基礎。5 ) to solve the uncertain modeling problem about hydraulic buildings, a new modeling method named aggregation modeling based on graph object technique is put forward. as a result, the graph model of solid gravity dam is designed. the graph object of water _ proof dam section taken as an example, the design and implement of self defined graph object is discussed
5 )根據水工建築物不定型建模的特點,提出一種基於圖形對象技術的聚合建模方法,詳細討論了聚合建模法的基本原理;設計了實體重力壩的圖形對象模型,並以擋水壩段圖形對象的設計為例,研究了自定義圖形對象的設計和實現;基於objectarx的通知? ?反應機制,採用數據庫反應器和對象反應器,建立了圖形對象的互動操作機制;以擋水壩段斷面優化設計為例,研究了圖形對象和分析、計算功能的集成方案。Rclying on the abundant technical strength of zhejiang university chemical machinery research instiute, it is specially engaged in the production of all kinds of the medical instruments such as the steam modular cylinder, modular dyeing tube, bactcricidal cylinder, gas storage cylinder, fermentation cylinder, heat exchanger, desk type, verticaltype, portable, horizontal electrically - hcated pressure steam sterilizer, carbon dioxide, biochemical, mycetes, illumination, water - sealcd, clectrically - heatedpressure steam sterilizer, dry heating sterilizer, carbon dioxide, bibiochemical, mycetes, illumination, water - sealcd, clectrically - heated, clectrically - heated constant temperature type culture box, fixed temperature and humidity box, climate cabinet exc. meanwhile it offers a full set of the stainless steel utensil serial products to the pharmaceuticals, health - care products, food, drink, cosmetics, uncontaminated workshops and so on. it can design and manufacture various non - standard equipments according to the consumer is requirements. welcome to make inquiry into this company. we are looking forward to cooperating with you
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