水輪機工況 的英文怎麼說
中文拼音 [shuǐlúnjīgōngkuàng]
水輪機工況
英文
turbine operating condition- 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
- 工 : Ⅰ名詞1 (工人和工人階級) worker; workman; the working class 2 (工作; 生產勞動) work; labour 3 ...
- 況 : Ⅰ名詞1 (情形) condition; situation 2 (姓氏) a surname Ⅱ動詞(比方) compare Ⅲ連詞[書面語] (...
- 輪機 : turbine
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During recently 3 years, i mainly engaged in mechanical vocation ' s plant planning. i attended 25 projects, which including feasible reports, preliminary designing and working drawing designing, ranged over establishment or technology reforming of machine tool factory, gear factory, tractor factory, automobile manufactory, electric pump factory, electromechanics factory, electric cable factory, the highest investment of them is 160 million yuan, total design work expand over 850 million ( no repeat calculate ). for i have professional ability and well up in developmental situation of mechanical vocation and it ' s situation inside jiangsu province, these projects what i designed were all authorized by leading department and expert, introduced into national plan and bring into operation. these projects bring both economic profit and society profit for the factory ' s technical advancement, product ' s update. as the director of these projects in these designing and consultation work, i generally organize and operate these and earn the higher valuation of leading department and consumer
近三年來主要從事機械行業工廠工程設計,先後參與二十五個項目的可行性研究報告編制,初步設計和施工圖設計.涉及機床廠,齒輪廠,拖拉機廠,汽車製造廠,電泵廠,電機廠,電纜廠的新建或技術改造,其中單項投資額最高的為1 . 6億元,總計完成投資額為8 . 5億元(未重復計算)的設計工作量.由於對機械行業發展狀況和省內狀況較為熟悉,具有一定的專業水平,這些設計項目均經有關領導部門,專家審定列入國家計劃,得以實施,為工廠的技術進步,產品更新換代,生產發展創造較好的經濟效益和社會效益.在這些設計,咨詢中,本人均任項目負責人,全面組織,實施設計工作,得到主管部門和用戶較高評價Based on the linear model of governing object, this paper calculates the turbine turbine transfer coefficients and six ki parameters of generator in different work point, and the effect of these changing on latent root are calculated
以調節對象線性化模型為基礎,從1個實例計算入手,計算了不同工況下水輪機傳遞系數和發電機6個參數的變化情況,進而計算這些參數變化對調節對象特徵根的影響。Analysis of the economy on the water feeding pump steam turbine under variable working conditions
變工況下給水泵汽輪機經濟性分析研究Correspondingly, its theory is up to developed to a higher level. in this thesis, taking the risk management activities of the two parties of insurance as the perceptive and the process of engineering insurance as the clue, the establishment of risk management system is analyzed during the process of risk identification and evaluation, insurance contract arrangement, disaster prevention and loss reduction, and the compensation management. furthermore
本文在查閱大量文獻的基礎上,對疏浚泥泵及排泥管道的動態特性現象進行了分析,並應用面向對象的c + +語言開發了比較通用的計算機程序,對緊急關閥、水下挖掘機具(如絞刀、斗輪等)吸泥口堵塞以及事故拋泵等典型的動態工況特性進行了計算和分析。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。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。Research on vibration problem of hydraulic turbines under the high head and low output operation conditions
水輪機在高水頭低負荷工況下振動問題的研究The pressure existing between the guide vane and the runner when the pump - turbine of east china tongbai pumped storage power station stops at different loads is analyzed, and the method for determining the best load at which the generator circuit breaker ( gcb ) switches off during operation of the pump - turbine is illuminated
摘要介紹華東桐柏抽水蓄能電站的水泵運行時,不同負荷工況下停機、導葉和轉輪間壓力的變化,闡述了華東桐柏抽水蓄能電站1號機組發電機斷路器開斷的最佳負荷值選定。This paper establishes the linear model of hydro - turbine and deducts its transfer coefficients. then the optimized operation parameters are gained in the frequency disturbance and load rejection simulation. through comparing dynamically, this paper analyses the impact on its dynamic performance if some governing system parameter changes
在研究小波動情形時,即系統在穩定工作工況點附近小瞬變時,可以把非線性系統進行線性化處理;本文建立了水輪機調節系統的線性化模型,推導了其中的傳遞系數;對水輪機調節系統的頻率擾動和機組突甩負荷工況進行了模擬試驗,整定了最佳調節參數;通過動態比較,分析了調節系統參數改變對其動態性能的影響。Abstract : 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。Mr. ma fuqiu science and technology dept., harbin engineering university, china gave a presentation entitled water turbine utilizing tidal current energy. he reviewed heu s study of the tidal current energy utilization and the " 70 kw tidal current energy test power plant " completed in 2002
他回顧了哈爾濱工程大學在海洋能開發領域的科研成果,重點介紹了該校自行設計並在浙江省建造的我國第一座70kw潮流實驗電站「萬向號」的設計和研建情況,及其在擺線式水輪機和電站總體技術方面的水平。At same time, author suggests to change cavitation factor to important operation condition during pressure fluctuation test so to avoid producing the phenomenon of cavitation stimulus in the prototype operation
同時,建議針對水輪機的重要運行工況,增加不同空化系數下的壓力脈動試驗,以避免在真機運行時可能產生「空化自激」現象,確保原型機組的安全運行。Presently, most microcomputer governors adopt pid control law. the traditional pid control law cannot deal with the conflicts of stability, accuracy and speediness. so parameters auto - tuning on - line must be adopted if stable operations under all conditions wanted to be guaranteed
目前的水輪機微機調速器普遍採用pid調節規律,傳統的pid控制無法解決穩定性、準確性和快速性之間的矛盾,要保證系統在各工況下穩定運行,必須採用參數在線自整定技術。The water turbine regulation system is a complicate auto - controlling system, it ' s small fluctuation dynamic course means : when the water turbine regulation system is interfered by tiny disturbance of load or command signal, the change of different parameters in the system is less, we can thought they are subtle change near by the discussing conditions, so we can make each tache in the system linearization, that is, describe the dynamic specialty of each tache and the whole system by means of linear differential equation
水輪機調節系統是一個復雜的自動控制系統,其小波動過渡過程是指水輪機調節系統在受到微小的干擾(負荷或指令信號擾動)時,系統中各參數的變化都較小,可以認為是在所討論工況點附近作微小變化,則可將調節系統各環節加以線性化,用線性微分方程式來描述各環節及整個系統的動態特性。Abstract : the effect of turbine characteristic on stable sectional area of surge tank can be expressed by the synthetic characteristic coefficient of turbine, it shows the effect of turbine efficiency. based on the analysis on the variation of the characteristic curve for middle or high specific speed turbine, this paper demonstrates that the largest stable sectional area of surge tank is not dependent on the lowest water head of hydroelectric plant but the design head
文摘:通過理論推導,研究了水輪機綜合特性系數對調壓室穩定斷面的影響,即水輪機運行中不同工況點效率的相對變化對調壓室穩定斷面的影響.得出了最危險的調壓室穩定斷面取決于設計水頭,並通過實例得到驗證The object parameters change with work point in water turbine governing system
摘要水輪機調節對象的許多參數都是隨運行工況變化的。This essay, which researches into huaneng chongqing gas turbine power plant ( 108. 25mw ) as its object of study, carries out calculations on the variable rated performance of the steam - gas turbine combined operation, utilizing an integrated method of theoretic analytics and artificial neural net. a set of software system applicable to monitoring of plant performance has been developed based on the calculations, which is used to raise the efficiency of a combined cycle plant to achieve largest possible economic profit
本文以華能重慶燃機電廠( 108 . 25mw )為研究對象,應用理論分析和人工神經網路相結合方法,對蒸汽- -燃氣輪機聯合循環進行變工況性能計算,並以此為基礎開發出一套適用於工況監測的軟體系統,以提高聯合循環電站的營運水平,獲取最大經濟效益。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 this thesis, by the summarizing and analyzing about the present stability control study state of synchronous generator unit, it is achieved that the governor pss ( gpss ) is more suitable for the stability control of multi - machine system because of its better decoupled character than conventional pss ; the intelligence control theory is more reasonable than conventional methods to design the hydro - generator unit gpss because of the uncertainty of mathematical model of hydro - electricity system caused by intense nonlinear character and time - variant operating mode of hydro - turbine and water - hammer effect of hydraulic system
本文對同步發電機組穩定控制的研究現狀進行了綜述和分析。認為:與常規pss相比,調速器側pss ( gpss )具有良好的解耦特性,更宜用於多機系統的穩定控制;由於水輪機特性的強非線性、工況的時變性以及引水系統的水擊效應所導致的水電系統數學模型的不確定性,採用智能控制理論設計水電機組gpss較常規設計方法更為合理。分享友人