high specific speed turbine 中文意思是什麼
high specific speed turbine
解釋
高比速透平-
This paper elaborates the parameters selection of the 700mw turbine for laxiwa power station located upstream yellow river, which is coming into construction soon. through statistical calculation of specific speed for turbines with large capacity, high operating head in domestic and oversea power station, utilizing turbine homologous theory. adopting regression statistic calculation method, it has got specific speed statistic equation., the demonstration of primary parameters selection, and the primary target parameters suitable for laxiwa power station
本文針對黃河上游即將開工建設的拉西瓦水電站700mw水輪機的參數選擇進行了研究，通過對國內外的大容量、高水頭水輪機的比轉速統計計算，利用水輪機的相似理論，採用回歸統計計算方法，統計出了比轉速統計方程，並進行了水輪機主要參數選擇論證，提出了適合拉西瓦水電站水輪機的主要目標參數。 -
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 -
This thesis gives a brief introduction to basic theory of wind power, construction of wind farm and commissioning and operation of wind turbine by illustrating the 3rd phase extension project of ningxia electric power group co., ltd helanshan wind fram. based on the specific study on the engineering construction and the domestically and globally popular 850kw wtg, further by comparasion of the power output rate of g52 and g58, we can prove that with substitute of new material and new technology, larger capacity wtg will become popular. especially when the running diameter of blades enlarged, more power produced at same wind speed ; and the high efficiency will be further guaranteed if the gearbox, major shafting equipment be checked and maintained regularly
根據對實際工程建設的具體研究，對我國及國際上主導機型850kw風機的具體分析，以及對g52和g58風機輸出功率的比較，更進一步證明在新的技術和材料替代下，更大型的風力發電機組將會替代現有主導風機機型，特別是在風機葉輪轉動直徑增大后，相應的輸出功率在同等風速下會有明顯增加，更好的利用風能並轉變為電能;齒輪箱作為風機中主要傳動設備，只有按維護要求並根據實踐經驗定期檢查易損部件，才能使風機安全高效的運行，提高風機的經濟運營效率。
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