pumping speed 中文意思是什麼

pumping speed 解釋
泵沖數
  • pumping : 泵送
  • speed : n 1 快，迅速。2 速率，速度。3 （汽車的）變速器，排擋。4 （膠片，照相紙）感光速度。5 〈古語〉興隆...
  1. Not need heating, pumping, high - speed centrifugation, low operation fee

    不需要加熱抽真空和高速離心，能耗低，運行費用低。
  2. In pumping fluid with gas, pressure boost can be improved by enhancing the pump rotation speed, thereby improving the performance of the pump to a certain degree ; when the gas content is constant, by increasing the inlet pressure, the pressure boost can be enhanced and the pump efficiency be improved remarkably ; when the gas content is rather high, there will be a problem of matching between the gas pressure and the fluid pressure ; the performance of the multiphase pump can also be improved by means of rational design of buffer vessel and homogenizer

    試驗分析認為，氣液混輸工況下，提高泵轉速可以提高增壓，在一定程度上能改善多相泵的工作性能；含氣率一定時，增加進口壓力，可使多相泵增壓值增大，泵效明顯增加，最大含氣率點后移，但含氣率很高時，存在氣液壓力相匹配問題；改進緩沖罐和均化器的設計，有利於氣液互相夾帶，避免氣囊產生，可改善多相泵的輸送性能。
  3. In the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load

    針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。
  4. Abstract : in the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load

    文摘:針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。
  5. The working principle of liquid helium cryocondensation pump is strong absorptive force between 4. 2k cryogenic surface and gas molecules. the pump has great advantage in large instant pumping speed under high gas load, large working pressure range, high & neat ultimate vacuum

    利用4 . 2k低溫面對氣體的物理吸附機制實現高氣載下瞬時大抽速的液氦低溫冷凝泵，具有工作壓強范圍寬、能獲得清潔真空環境的特點。
  6. The testing technique and system of the newly developed, miniaturized sputtering ion pump with low pumping speed has been developed in accordance with the standards formulated by machine industry

    摘要本文介紹了小抽速微型濺射離子泵的性能測試系統和參考機械行業標準確定的測試方法，探討了測量結果誤差來源。
  7. Liquid helium cryocondensation pump has great advantages in large pumping speed, working pressure range and high ultimate pressure, etc. it ' s more excellent than any other vacuum pump. it can meet the vacuum requirement of nbi and can improve the transportation efficiency. the development of neutral beam injection ( nbi ) system in the world, the structure of nbi system used on the ht - 7 device of asipp was introduced in the thesis

    液氦低溫冷凝泵是利用低溫面對氣體有強吸附能力的原理，實現抽氣的真空獲得設備，它具有抽速大、工作壓強范圍寬、極限真空度高等一系列優點，是普通真空設備無法比擬的，作為中性束注入系統的主抽泵，它能滿足中性束注入系統對大抽速的要求，提高中性束的傳輸效率。
  8. The choice of pumping system depends on required pumping speed, ultimate pressure attainable(in a reasonable time).

    泵系統的選擇取決于所需要的抽速，能達到的極限壓強（在適當的時間內）。
  9. In our prototype mbp with a blade - set installed, the pumping speed increases by more than 20 percent

    本文分析了導流葉列的工作機理，提出了葉列參數優化方法，優化后的抽速可以提高20 % 。
  10. The choice of pumping system depends on required pumping speed, ultimate pressure attainable ( in a reasonable time )

    泵系統的選擇取決于所需要的抽速，能達到的極限壓強（在適當的時間內） 。
  11. From the viewpoint of sucker rod stress changing, this paper has analyzed the influence of augmenting the pump diameter, depth of pump, pumping stroke length and speed to sucker rod breaking

    摘要從抽油桿應力變化的觀點分析了調大抽油泵泵徑、泵深和抽油機沖程、沖次對抽油桿斷裂的影響。
  12. Highly volatile and highly viscous samples can also be filled by defining parameters such as filling mode, pumping speed and number of rinsing cycles

    高度揮發和高粘度的樣品的進樣能通過預先設定好的參數，如進樣模式、泵的速度和清洗周期編碼。
  13. Abstract : the authors that the variable frequency speed is applicable and economic only in some range to the irrigation and drainage pumping station at the present time

    文摘:文中通過對灌排泵站採用變頻調速的適用性及經濟性進行分析研究，提出目前灌排泵站採用變頻調速並非具有廣泛適用性，該調節方式僅在一定適用范圍內具有經濟合理性。
  14. Vacuum technology. vapour vacuum pumps. measurement of the volume rate of flow pumping speed

    真空技術.蒸氣真空泵.體積流量泵的抽氣速度的測定
  15. Vapour vacuum pumps - measurement of performance characteristics - part 1 : measurement of volume rate of flow pumping speed

    蒸氣真空泵.性能特性的測定.第1部分:容積流量的測定
  16. 6. some necessary protective measures with artificial intelligence for pv water pumping systems are developed and realized, including dry operation identification, low speed, over load, low voltage operation and lightning protection etc

    研究了光伏水泵系統的多種智能保護措施並予實現，其中含井水打幹自動識別保護系統；低速、過載、欠壓保護系統；防雷保護系統等。
  17. Vacuum technology - positive - displacement vacuum pumps - measurement ofthe volume rate of flow pumping speed

    真空技術.真空正排量泵.體積流量的測定泵速
  18. The main factors influencing power saving of the beam pumping unit with high slip motor are pumping speed of the unit, slip ratio of the motor and rotary inertia of rotating parts

    指出影響使用高轉差率電動機的游梁式抽油機節能的主要因素是抽油機的沖次、電動機轉差率和旋轉件的轉動慣量。
  19. The theoretical analysis of large cryocondensation pump for nbi was mainly concerned. this paper emphasized on analyzing and calculating the heat load of cryocondensation pump, simulating thermal transmission coefficient and molecule transmission coefficient of radiation baffle according to monte carlo method, analyzing the process on cryo - surface and the factor of affecting pumping speed and hydrogen layer thickness of influencing cryo - parameter, etc. finally by verifying the pumping speed on large cryocondensation pump for neutral beam injection system, the pumping speed of 4. 0x105l / s ( for h2 ) was proven to be reasonable

    本文首先介紹了中性束注入系統的國內外發展狀況，闡述了中科院等離子體所ht - 7中性束注入系統的構成，主要對用於中性束注入系統的大型低溫冷凝泵的特性進行了理論分析；對冷凝抽氣面的熱負載進行了分析計算；用蒙特卡羅法對輻射擋板的分子傳輸幾率與熱傳輸幾率進行了模擬計算；研究了低溫表面的處理方法對抽速的影響以及氫層厚度對各低溫參數的影響；最後對用於中性束注入系統的大型低溫冷凝泵的抽速進行了驗證，得出的結論是：選取40萬升秒的抽速是合理的。
  20. Positive - displacement vacuum pumps - measurement of performance characteristics - part 1 : measurement of volume rate of flow pumping speed

    容積真空泵.性能特性的測定.第1部分:容積流量的測定
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