泵送率 的英文怎麼說
中文拼音 [bèngsònglǜ]
泵送率
英文
pumping rate-
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。This paper first discusses the cause of crack formation and crack mechanism of high performance concrete. then carries out crack tests of three groups of concrete slabs using aggregate type, sand rate and dosage of fly ash as design parameter
本文初步探討了泵送高流態混凝土的裂縫成因和開裂機理,並分別以骨料品種、砂率以及粉煤灰摻量為設計參數進行了三組配合比混凝土平板的抗裂試驗。Thirdly, it simulated the pumping circuit & dividing circuit with the widely used software matlab / simulink. the displacement of the rod piston and the impact of hydraulic are analyzed in the different input flow ( frequency of pump ) and different reversing time. it found out the cause of hydraulic impact ( one - to - one incorrespondence between the response time of dividing circuit and the operation time of rod piston ), and gave some methods to weaken hydraulic impact. in the final part of the paper, the reliability of the theory analysis is further verified by the experiment of hydraulic system
首先在流變學原理的基礎上,深入分析混凝土在輸送管道內的流動狀態,得出混凝土泵的負載特性方程;然後根據功率鍵合圖的建模方法,建立泵送迴路和分配迴路的數學模型,並運用模擬軟體matlab simulink對泵送和分配迴路模型進行了模擬,分析了在不同的輸入流量(泵送頻率)和換向時間下,活塞桿的位移和系統的液壓沖擊情況,找到了引起液壓沖擊的根本原因(即分配迴路的響應時間(固定值)與活塞桿的運動時間(變化值)不相匹配) ,並提出了相應的改進方法。These characteristics and phenomenons have effect on the quality of gear pump, and it is difficult relatively to research them by theory. at present the research is limited to the phase of examination testing. theoretic research of the characteristics and the phenomenons of polymer gear pump are blank in china when the gear pump feeds the viscous polymer liquid of chemical flow with high temperature and high pressure
齒輪泵除具有流量和容積效率、扭矩和機械效率、功率和總效率等基本特性外,還存在著困油、噪聲和氣穴等現象,這些特性和現象直接影響齒輪泵的質量,對斜齒齒輪泵的這些特性和現象的理論研究難度較大,目前大多仍局限於實驗測試研究階段,而聚合物齒輪泵在輸送化工流程中的高溫、高壓的粘流態聚合物時特性的理論研究在國內基本還處于空白。Versatile tube pumps tomosada squeeze pumps are designed to efficiently convey mortar for every application including construction, chemical production and wastewater disposal
本廠生產的squeeze式壓榨式壓送泵適用於建築土木化學工廠排水處理等各種建築工程,並能夠高效率地輸送材料。The influence of operating parameters, such as pump rotation speed, suction pressure and gas content, on the performance of a multiphase rotordynamic pump is investigated
用多相泵試驗臺架測試了泵轉速、氣體進口壓力和含氣率等操作參數對螺旋軸流式多相泵輸送性能的影響。Standing form centrifugal pump of long axis, the parts of touching liquid all made of fluorine plastics alloy to press, it has trait of broad bound of resisting causticity high efficiency ethereal weight and can transport neednt to fill liquid expediently maintain etc
長軸立式離心泵,其接觸液體部分全部由氟塑料合金模壓成型工藝製造,具有耐腐蝕范圍廣效率高重量輕,不需灌液即能抽送維修方便等特點。Fyh fluorine plastics alloy below liquid pump is standing form centrifugal pump of long axis, the parts of touching liquid all made of fluorine plastics alloy to press, it has trait of broad bound of resisting causticity high efficiency ethereal weight and can transport neednt to fill liquid expediently maintain etc
Fyh型氟塑料合金液下泵是長軸立式離心泵,其接觸液體部分全部由氟塑料合金模壓成型工藝製造,具有耐腐蝕范圍廣效率高重量輕,不需灌液即能抽送維修方便等特點。Inherent frequency and vibration type are got by way of model analysis. at the same time, the reason that causes serious branch vibration during the bump auto working is found
通過模態分析,掌握了該水泥輸送泵車的固有頻率和振型,找出了該泵車臂架部分振動較大的原因。Measures for further developing concrete mix design were presented based on above work. for example, adopts pfca as an index in designing durability of concrete, uses mortar slump flow test to select cements and water - reducers and to measure saturation dosage of water - reducer in mortar and then determine optimum dosage of it in concrete, uses bar - slump test to determine stability and fluidity of fresh concrete, and consequently, the workability of high fluidity and high stability concrete such as pumped or self - compacting concrete can be designed by adopting proper cfvm determined in terms of rheological properties of designed mortar measured with cone - based rheometer
如採用粗集料破碎率作為耐久性設計的一個指標;採用砂漿坍落擴展度試驗選擇水泥和減水劑,確定砂漿中減水劑的飽和摻量,並通過上述數學模計算混凝土中減水劑的飽和摻量,以此為參照確定最佳摻量;採用障礙坍落度試驗確混凝土的穩定性和流動性,結合由漏斗式砂漿流變儀測定的砂漿流變性能確定合理的砂漿填充系數,從而實現對高流動性高穩定性要求的混凝土(如泵送和免振自密實等)的工作性設計。A new design of fractal branching channel net for cooling of electronic chips is studied. based on the generation of a fractal branching net, heat transfer and the required pumping power for fluid flow in fractal microchannels and the parallel channels are compared
論文最後介紹了一種分形微管道網路,在給出其構造過程的基礎上,利用有限元法將其傳熱能力、所需泵送功率與平行微管道網路進行了比較。A centrifugal pump is used in cip to convey cleansing liquid into mateial pipe and equipment recipients to force the cleansing liquid to circulate to make cleaning without taking apart pipes or equipment. with the system the equipment availability can be improved and intensity of labor lessened
Cip利用離心泵輸送清潔液在物料管道和設備容器內進行強制循環,達到清洗目的而不需要對管道設備解體,提高設備利用率,減少勞動強度。Since the supply temperatures for heating and for cooling are kept moderate due to the low power densities needed, it makes sense to use a heat pump for heating as well as for cooling
因為所需要的功率低,輸送的採暖和製冷溫度保持適度,才有可能使用熱泵採暖和製冷。分享友人