pumping head 中文意思是什麼

pumping head 解釋
泵的揚程
  • pumping : 泵送
  • head : n 1 頭，頭部，首。2 頭腦，才能；智力，想像力，理解力。3 前部，上部；頂端，尖突部；船長；（書頁等...
  1. Over pumping of ground-waters produces a difference in hydrostatic head in favor of the seawater.

    過量抽取地下水時，產生利於海水的流體靜力學水位差。
  2. Existing pumping equipment would require upgrading to cater for the net positive suction head requirements to draw seawater from the lagoons reservoirs

    -現有水泵的功能需要提升，以配合水泵正吸水壓的要求，從瀉湖蓄水庫抽取海水。
  3. The flow regime, sediment deposition and the loss of head of two head tanks of the sewage pumping station with different dimensions are studied by using a hydraulic model test method

    摘要採用水力模擬的方法對兩個不同結構尺寸的污水泵站高位井的水流流態、泥沙淤積及水頭損失等進行了模型試驗。
  4. Kinematics and dynamics analysis about double horse head pumping unit with arc back horse head

    后驢頭為圓弧的雙驢頭抽油機運動與動力分析
  5. Optimum design for double - horse head beam pumping unit is a question of non - linear programming with inequality constraint condition and multi - objective function

    雙驢頭抽油機優化設計是一個具有不等式約束多目標函數的非線性規劃問題。
  6. The improvement of fixing for donkey head of pumping unit

    抽油機驢頭緊固形式的改進
  7. Analysis on transient process in low - head pumping installation during starting period

    低揚程水泵裝置起動過渡過程分析
  8. Analysis on transient process in low - head pumping installation during its suspending period

    低揚程泵裝置停泵過渡過程分析
  9. The optimum design method is utilized to design 12 - 5 - 48hb double - horse head beam pumping unit with rear horse head s outline of spiral of archimedes, and the optimum result is analyzed and compared with double - horse head beam pumping unit with rear horse head s outline of three - section circular arc and beam pumping unit

    用該優化方法對12 - 5 - 48hb型后驢頭為阿基米德螺線雙驢頭抽油機進行了優化設計，並對優化結果和后驢頭為三段圓弧的雙驢頭抽油機及游梁式抽油機進行對比分析。
  10. A time length of ten years and the calculated heads of 1997 were used for model prediction. the predictive simulation showed that the continued pumping will cause relatively high changes in head distribution and increase average drawdown to 16 % after 10 years

    在十年的預測期內，採用1997年的地下水計算水位作為初始水位用於模型的預測，結果表明持續的地下水開采會引起地下水水位的大幅度下降，十年以後平均降深會增加16 。
  11. One side, groovy cast steel flap valves increase the head loss, waste electricity, the other side, when flap valves close, it always delay time because of it ' s low proportion. the bump load seriously threaten the safety of pumping station. through the research and development of flap valve used in the renovation practices in the design of air - filled floating flap valve in no. 1 chuhe pumping station of anhui province, the working characteristics and design methods of air - filled floating flap valve are studied in this paper

    但在拍門運行使用的同時，又時常暴露出一些缺陷，主要有：一是常規的鑄鐵或鑄鋼拍門加大了流道的水頭損失，特別是對于裝機容量較大的排澇泵站，其電能損耗相當可觀；二是拍門在自重下下落關閉時，往往由於過多考慮水頭損失導致浮重過小而延誤閉門時間，致使水體倒灌，再因緩沖裝置失靈導致閉門時門體對門框撞擊力很大，嚴重危及站身安全。
  12. Visual modflow computer code was selected to simulate heads distribution, calculate the zone budgets of the area, evaluate the effect of external stresses on the groundwater head, to determine how much water would be diverted from the river as the result of pumping and to demonstrate how the groundwater model can be used as a comparative technique to formulate a new approach for the quantitative groundwater vulnerability assessment in order to optimize utilization of the resource

    在分析河床沉積物滲透性對模型結果的影響時，採用了實際野外水文地質條件而不像前人所採用的假想模型。本論文用visualmodflow建立數值模型模擬預測了地下水水頭分佈，計算區域的水均衡，分析源匯項對地下水水位的影響。在此基礎上進行了全區的地下水脆弱性評價，為地下水資源的合理開發利用提供依據。
  13. 2. an optimal decision - making model for water resources scheduling of large - scale scheduling district is set up. it can provide a method to achieve maximum net revenue with a fixed service discharge from canal head and a fixed pumpage of pumping station

    建立了大型灌區水資源優化調配決策模型，研究在灌區渠首供水能力和泵站提水能力一定條件下，將灌區水資源如何調配才使得灌區總凈收益達到最大值的優化決策問題。
  14. Cut - off flow technique with loose - leaf rapid - drop gate at low - head pumping stations

    低揚程泵站活頁式快速閘門斷流技術改造措施
  15. All mathematical methods can be used for reference in the design and operation of large low - head pumping stations

    本文所建數學模型可供泵站工程研究、設計、運行應用。
  16. 2. builds up decision model for water resource ' s optimal distribution of large irrigation areas in this thesis. this model resolves the optimal decision problem of how to distribute water resource to meet maximal total net profit in irrigation basins, when water supply potential of irrigation areas " canal head and bailing capability of pumping station hold the line

    2 、建立了大型灌區水資源優化調度決策模型，研究在灌區渠首供水能力和泵站提水能力一定的條件下，將灌區水資源如何調配才使得灌區總凈收益達到最大值的優化決策問題。
  17. When the water head and the flow are given, we can regulate the pump ' s blade mounting angle to control the discharge of pump in this pumping station that contains only one type of pump. we also can determine the number of running machines with machine ' s optimal combination. so we can reduce its energy consumption, and make it run optimally and economically

    當水頭和抽水流量給定時，這類泵型單一的泵站，可以通過調節水泵的葉片角度，控制水泵的流量，併合理確定開機臺數，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。
  18. When a mathematical model of optimum design for double - horse head beam pumping unit is set up, objective function of energy saving ， low weight and excellent unit s comprehensive performance is selected, and interference is mainly solved in constraint condition

    在建立雙驢頭抽油機優化設計數學模型中，綜合考慮到各項指標對抽油機總體性能的影響，選用「以能耗低、質量輕、綜合性能指標要好」為尋優目標，在約束條件方面主要解決干涉問題。
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