水泵出水率 的英文怎麼說

中文拼音 [shuǐbèngchūshuǐlǜ]
水泵出水率 英文
pump capacity
  • 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...
  • 泵 : 名詞（吸入和排出流體的機械） pump
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 水泵 : water pump; compressed water pump水泵房 pump house; 水泵缸套 hoghead; 水泵工 plugman; 水泵間 [土]...
  1. Presents the energy saving principle of a frequency - controlled pump and points out the applicability of the law of similitude for centrifugal pumps and the conception of constant efficiency curves

    摘要闡述了循環水泵變頻調速的節能原理，提出離心水泵相似定律的適用性和等效率曲線概念。
  2. In order to obtain the maximum conversion efficiency we always hope the pump source is operated at the maximum level, thus to raise the input pump energy, we have to apply the galilean telescope to input the pump beam, but it will lead to the bad pump beam quality and the large output beam linewidth

    為了獲得最大轉換效率總希望使泵浦源運轉在可達到的最高水平，因此不得不採用伽利略壓縮望遠鏡輸人泵浦光以提高輸人泵浦光的能量，但是這同時使泵浦光質量變壞，使得輸出線寬變大。
  3. According to pump performance curve shown we can get that the distance h is changed with the rotate speed n in the same point q, and the flux q is changed with the rotate speed n in the same point h. from the curve we can get the rule that the distance and rotate speed are in direct with ratio at the same flux point, and the rotate speed and the flux are also in direct with ratio at the same distance point

    根據相似定律：流量與轉速的一次方成正比；揚程與轉速的二次方成正比；功率與轉速的三次方成正比。即在降低轉速，調低水泵出水揚程的同時，功率下降的幅度非常大，從中可以節省相當大的電能。完全應在高水位時降低水泵機組轉速，從而使電機的輸出功率隨著轉速下降值與轉速原值商的三次方關系下降。
  4. At first, modeling of these divvies by rate equations to obtain expressions for threshold and slope efficiency is given. on the case of this theory, the large numbers of literatures and datum are consulted, and the laser is home studied. through rationally selecting and improving the reflector surface, ensuring the beam quality, increasing farthest the absorption path, and improving effective pumping frequency ; through designing the water cooler of yag bar, the volume of laser is half the same internal and international production, and the output power is get to the extremum of the same international production

    並在此基礎上查閱了大量文獻和資料，對該種激光器進行了深入的研究，通過對yag棒直徑的合理選取併合理地改進反射鏡面，從而既保證了光束質量又最大限度的增加了吸收長度，有效的提高了泵浦效率；在不影響泵浦的前提下，通過有效縮短yag棒的長度減小輸出損耗；對yag棒的水冷系統進行優化結構設計，使激光器體積減小到國外同類產品體積的一半，而輸出功率已達到國外同類產品的極限值。
  5. Through analyzing the figure of energy wasting of pump, the quality in pipes is direct proportion of the speed of pump if the speed of pump is reduced. the power of electromotor fell the cube of the speed of pump. so the energy wasting of constant pressure water supply based on variable frequency speed regulating technology is envident less than the traditional mode is used throttle to supply water

    分析水泵工況的能耗比較圖，可以看出利用變頻調速實現恆壓供水，當轉速降低時，流量與轉速成正比，功率以轉速的三次方下降，與傳統供水方式中用閥門節流方式相比，在一定程度上可以減少能量損耗，能夠明顯節能。
  6. So the pipe system sends out noise because of resonance. especially the frequency 250hz of pulsating water is in close proximity to natural frequency of pipe, so the 250hz is a dangerous frequency to the pipe system. there is another reason why the noise is reached to 110db ( a ) in pump room that the noise is magnified by the cistern because of the resonance of cistern

    特別是激勵頻率為250hz的頻率分量恰好與管道系統的固有頻率相接近，其引起的管道振動對噪聲的貢獻最突出，同時也與水泵房房腔的固有頻率相接近，從而引起房腔共鳴發聲，使噪聲進一步被放大，以至於噪聲最大處高達105db （ a ） 。
  7. Applying the theory on hydrodynamics and combining the structure of the pump, the method of calculating the flux is found, using the simulating dual pump which mercury serve as the working medium, by the experiment on the electromagnet used in the dual pump, the optimum method of the coil connection is gained ; by the experiment on the relation the static pressure and the working parameter in different groove structure, a high - efficiency groove structure named as " + " shape are devised ; by comparing the static pressure and flux between single pump and dual pump, the conclusion that the flux of dual pump is about 1. 6 times as much as the flux of single pump is educed, and prove it practical that the dual pump is adopted to increase the flux

    利用水銀為工作介質的雙聯電磁泵，通過對雙聯電磁鐵不同接法的實驗研究，找到最佳激磁線圈接線方法；通過對不同流槽結構的靜壓頭與工作參數關系實驗，研究得出一種高效率的新型流槽結構? ?十字型流槽結構；通過對單泵、雙泵的泵高和流量實驗，得山了在同等工作條件下，雙泵流量大約為單泵的1 . 6倍的結論，從而證明了採用雙聯泵的方法來提高直流電磁泵的方法是切實可行的。
  8. Based on many references form civil and abroad, the author mainly studies the measurment theory and method for flux, raising height, axial power and rotational velocity. avoiding many complicated and intermediate courses for power wastage analysis, introduces the electric measurement and using efficiency curve of motor in measureing axial power, and satisfies the automatization of the device. the paper also provides a new method, inductive winding, in measuring rotational velocity of electromotor, supplys limitations of other method in measuring rotational velocity of electromotor in water, and meet practical needs in developing diving electric pump for corporation

    作者在參閱大量國內外有關文獻，著重探討了水泵流量、揚程、軸功率、轉速的測試原理和測試方法，提出了採用電測法並結合電機效率特性曲線測量水泵軸功率，從而避免了損耗分析法中大量復雜的中間過程，滿足了試驗裝置的自動化測量要求；採用漏磁感應線圈法測量電機轉速，彌補了其它轉速測量方法對水下電機測試的局限性，適應了萊恩公司開發潛水電泵的實際需要。
  9. The nonuseful loss of cavity were got by measuring the threshold of laser under the different output mirrors. the loss was caused by prague angle unmatching. 3. the pulse train with minor pulse width 22ns and frequency 23khz, peak power 3. 5kw were obtained in cr4 " : yag passively q - switch experience. the stability of pulse is 6 %

    （ 3 ）實現了在大功率泵浦、無水冷的情況下cr ~ （ 4 + ） : yag飽和吸收體被動調q ，得到了最小脈寬為22ns 、重復頻率為23khz 、峰值功率為3 . 5kw的激光脈沖輸出，脈沖的穩定性為6 。
  10. The hydraulic characteristic of the inlet and outlet system which is an important part of urban sewage pumping station has a direct influence on the efficiency of the pump

    進出水系統是城市排污泵站中的一個重要組成部分，進出水系統的水力特性對水泵性能有著直接的影響，良好的進出水條件可以使水泵裝置達到良好的運行狀態、獲得較高的效率。
  11. It is pointed out that passage hydraulic loss is related to the flow circulation, the influence of flow deviation on passage hydraulic loss and pump assembly efficiency is analyzed, the forming mechanism of flow deviation is investigated, and the method of eliminating flow deviation is put forward

    指出流道水力損失與水流環量有關，分析偏流對流道水力損失和泵裝置效率的影響，研究偏流形成機理，提出消除偏流的方法。
  12. So far, most pump machines in ships are not taken action. when the level is high, pumps still work in high distance, which have the energy wasted

    目前，國內絕大多數的泵船上的水泵機組未採取措施，電機的輸出功率是恆定的。
  13. Results indicate that flow deviation in discharge passage is formed by co - action of pump outflow circulation and secondary flows in outflow curved pipe, hydraulic loss of discharge passage increases and pump assembly efficiency decreases because of flow deviation

    結果表明：水泵出流環量和出水彎管二次流共同作用形成了出水流道偏流，偏流使出水流道水力損失增大，泵裝置效率下降。
  14. Finally finding that there are two reasons that cause vibration of pipe and noise. the one is the vibration of pump which transfers to pipe and stimulates the vibration of pipe. the second is the stimulating frequency of pulsating water is coherent with the natural frequency of pipe

    最後得出管道的振動主要是由於兩個原因，一是泵的機械振動傳遞給管道，引起管道的振動；二是由於水流的脈動激勵頻率與系統的固有頻率相吻合，引起管道的共振發聲。
  15. There will be a great future if we integrate solar energy utilization techniques into heat pump techniques. on the base of integrating the two techniques, the paper analyzed the art trait of heat pump water heater, the manner of integration, the essential theory ; and developed a small capacity direct expansion solar - assisted heat pump water heater, and tested its thermal performance on the condition of different weather such as sunshine, overcast sky & night. the results make clear a small capacity direct expansion solar - assisted heat pump water heater can absorb not only solar energy but heat energy in air ; it takes on favorable thermal performance, on the condition of different weather such as sunshine, overcast sky & night, coph is about between 3. 5 ~ 5. 0, eer is about between 2. 5 ~ 4. 5, these are better than traditional air source heat pump water heater and non - direct expansion solar - assisted heat pump water heater, and it takes between 2 and 3 kwh to heat 270 kg water from 20 c to 50 c, it is very great in terms of saving energy and protecting environment,

    本文在結合太陽能利用與熱泵技術的基礎上，分析研究了太陽能熱泵熱水系統的技術特點；太陽能集熱系統與熱泵系統的結合方式；直接蒸發式太陽能熱泵熱水系統的基本理論；研製出小功率直接蒸發式太陽能熱泵熱水系統樣機，並在晴天、陰天、夜晚等不同的天氣情況下對其進行了試驗，實驗結果表明：本小功率直接蒸發式太陽能熱泵熱水系統不但可以有效地吸收太陽能，還能有效地吸收空氣中的能量，具有良好的熱性能，在不同的天氣情況下，其制熱系數cop _ h大約在3 . 5 5 . 0之間，優于傳統的空氣熱泵和非直接蒸發式太陽能熱泵熱水系統：其效能比eer大約在2 . 5 4 . 5之間，將270kg水從20加熱到50隻需用電2 3度，節能及環保效果明顯。
  16. We calculate the stress fracture limit, critical index limit and melting limit in a high power double clad fiber laser. the results show that the average output power decreases when the temperature is too high. to maintain the pumping efficiency and the output power, some cooling methods should be used when the output power reaches a certain level

    給出了熱效應對雙包層光纖激光器影響的裂解極限、臨界折射率極限和熔化極限與光纖結構參數和泵浦功率的表達式，理論分析和數值模擬結果表明對于高功率的雙包層光纖激光器溫度很高時激光增益下降，在一定的功率水平上需要進行外界的冷卻，以保證泵浦激光的效率和高功率的激光輸出。
  17. The flow of every pump is inclined to be different in the same side - inlet sump and the poor flow pattern, and then the inlet condition of the pump is not good, which makes the efficiency of the pump drop and causes vibration etc. based on the theses on the hydraulic characteristic of the wenshui road pumping station in the third period shanghai disposal sewage project, the methods were discussed to improve the flow pattern of side - inlet sump, and the measures were put forward to ameliorate the flow pattern in the paper

    對側向進水集水池，一般會出現同池各水泵配水不均勻，池內流態紊亂、水泵吸水條件差，繼而導致水泵效率下降、機組振動等問題。本文結合上海市污水治理三期工程汶水路泵站水力特性研究課題，探討了改善側向進水集水池水力特性的途徑與方法，提出了有效的整流、均流措施。
  18. This experiment include many contents, in a word, that is summer condition experiment, winter condition experiment > summer - winter transition condition experiment and winter - summer transition condition experiment, furthermore summer condition experiment still include flux changing experiment and winter condition experiment still include thermal balance experiment this article dealt with the data of the test, calculating out energy absorbing ( energy discharging ) of buried pipe in winter condition ( summer condition ), input power of heat pump x heat exchanging of piece buried pipe length x co - efficiency performance ? op ( energy efficiency rate ? er ) and average heat exchanging coefficient ; in additiont this article compares the inlet water temperature and outlet water temperature of underground the first layer and the second layer buried pipe when heat pump was running, the results are that the heat exchanging ability of the second layer buried pipe outgos the first layer buried pipe, and heat exchanging is more stable ; and still analyse earth temperature resuming in the transition season. the results are earth temperature resume fast in the first week when the heat pump runs off

    本文測試內容相當多，概括地說就是四個工況的測試，即夏季製冷工況的測試、冬季供熱工況的測試、夏?冬過渡季測試和冬?夏過渡季測試；另外在夏季工況的測試中還進行了變流量測試，在冬季工況的測試中還進行了熱平衡測試。本文對測試數據進行了處理，計算出了冬（夏）季工況埋管吸（放）熱量、熱泵空調器供熱量（製冷量） 、熱泵空調器輸入功率、埋管單位管長換熱量、供熱性能系數（製冷能效比）和平均傳熱系數等；另外，還比較了熱泵運行時地下一二層埋管進出水溫度變化情形，得出地下二層埋管換熱能力優于地下一層埋管，且換熱很穩定；並分析了過渡季地下一二層埋管溫度恢復情形，得出熱泵系統停機一周內地溫恢復特別快。
  19. 4. a new control concept and strategy for poly - pump system and its corresponding topological configuration are suggested. using on - the spot bus communication technology to improve flexibility and efficiency of group control for pv water pumping

    提出了光伏水泵系統的群控概念及其相應的拓樸結構，研究了相應的優化控制策略，設計並實現了現場總線通訊技術，進一步提高了群控系統的靈活性及提水效率。
  20. According to the supply system composed by parallel connection water pump, many kinds of operation proposals in a single pump were put forward to provide the greatest possible flow on both sides of the demarcation point in the scope of the flux changes ; identified the system of pumps, electromotor, speed governor imitate method of characteristics curve of the power device and its rotating speed, efficiency, energy consumption calculation under different condition ; the analytical methods used for the operational plan for comprehensive evaluation of the economic and safety and optimal results

    摘要針對由並聯水泵組成的供水系統，提出了在以單泵可能提供最大流量為分界點的兩側流量變化范圍內具有多種運行方案；確定了在不同工況下，該系統中水泵、電機、調速器特性曲線的擬合方法及其各動力裝置中轉速、效率、能耗的計算式；採用解析的方法對各種運行方案進行了經濟性和安全性綜合評價，並給出最優結果。
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