最佳噴管 的英文怎麼說
中文拼音 [zuìjiāpēnguǎn]
最佳噴管
英文
optimum nozzle-
A reasonable position of driving nozzle helps to achieve the maximum material flow that also depends on other parameters such as backpressure, properties of conveyed material and driving gas. it is observed that, an increase of convergent section angle is harmful to the pneumatic conveying system, and also influences on the mass flow rate of conveyed material, the distribution of static pressures in injector and the pressure drops of conveying pipe. in addition, within a reasonable scope of air mass rate, increasing the driving jet velocity is more advantageous than enlarging the dimension of driving nozzle
試驗研究發現，氣體噴嘴位置對氣固噴射器的輸送能力影響最大，氣體噴嘴存在某一最佳位置，而這一最佳位置與背壓、輸送物料特性和輸送風特性相關聯；氣固噴射器的收縮角對其輸送能力、內部靜壓分佈和輸送管阻力特性均有適量影響，收縮角增大對整個輸送系統均不利；在適當的輸送風范圍內，提高氣體噴嘴出口速度比擴大氣體噴嘴尺寸更為有利，但氣體噴嘴出口速度過高會增加氣固噴射器和輸送管內的能量損耗，給輸送帶來不利的影響；系統背壓與氣固噴射器的氣體噴嘴出口速度的選取有關。In order to achieve the optimized tunneling approach, first, tunneling procedures, shift length, horizontal jet grouting length, bench length and space length between c and d part of crd method are optimized ; on the basis of these results, two kinds of tunneling schemes are calculated with three - dimensional fem and the optimized tunneling scheme is achieved. as results of the optimized scheme, the conclusion is made that the gas pipe above the tunnel of sk3 + 355 section is secure. the calculation results are verified through comparison of numerical simulation results and site - monitoring measurement data
為得出適合本段工程的最佳施工路線，利用大型有限元通用軟體ansys對開挖順序、開挖進尺、水平旋噴長度、臺階長度及crd工法施工的c 、 d部相錯長度進行了有限元數值模擬和優化分析，並利用這些分析結果，進行了兩個施工方案的三維有限元動態施工模擬，得出了較優的施工方案，並利用施工后的地表沉降槽曲線，對sk3 + 355斷面處隧道上方的煤氣管線的安全性進行了分析，得出了利用此施工方案施工不會造成此處煤氣管線破壞的結論。The conclusion that the optimal secondary nozzle exit area generating the maximum thrust agrees well with the numerical simulation, indicating that the exit area of secondary nozzle should be optimized according to structure and flow parameters during design
表明在引射火箭設計時，應結合引射火箭的結構和流動參數對二次噴管出口面積進行優化設計，以達到最佳推力性能。Abstract : optimum distances between primary nozzle exit and mixing tube inlet, static pressure recovery of the mixing flow in mixing tube 、 total pressure distributions at the exit of mixing tube 、 pumping coefficients and total pressure losses of the exhaust ejector systems with four different types of primary nozzles have been measured in the experiments
文摘:對4種主噴管組成的排氣引射系統的引射系數和總壓損失、各主噴管出口與混合管進口之間的最佳間距、混合氣流在混合管內的靜壓恢復及混合氣流在混合管出口處的總壓分佈等進行了測量和對比。The construction of conical nozzle is used by pump ' s delivery - valve, making use of the dynamic characteristics of conventional. short pipe to enhance injection pressure. there are three parameters of fuel injection system : response pressure, injection - advanced angle, injection valve bulge high degree, the best match was found by adjusting them
在油泵出油閥端，採取漸縮管結構措施，利用管路動態效應提高噴油壓力；對于噴油系統參數：噴油壓力、靜態供油提前角和油嘴凸出高度，三個參數進行調整試驗，找到它們的最佳匹配。The conclusions are drawn as following : 1. regularity of fabrication in aluminum matrix composite ring - shaped performs with large dimensions and effects of parameters were investigated, based on the novel crucible movable spray deposition technology and equipment. the optimal parameters are that the diameter of the delivery tube is 3. 8mm, spray gas pressure is 0. 8mpa, spray height is 200mm, and transferring pressure of sic is 0. 5mpa
通過系統的實驗研究得到如下結論: 1 .基於新型的移動坩堝自動化控制噴射沉積環坯制備技術及裝置，研究了大尺寸鋁基復合材料環坯的制備規律，討論了噴射沉積工藝參數對沉積坯形成過程的影響，得到了最佳工藝參數:導流管直徑d = 3 . 8mm ，霧化氣體壓力p = 0 . 8mpa ，噴射高度h = 200mm ， sic顆粒輸送壓力p送= 0 . 5mpa 。The optimal parameters of making high silicon content aluminum alloys is : spray height is 220 - 230mm, spray angle is 30 ? the scanning velocity of atomizer is 30mm / s, the original offset of the substrate is 30mm, rotation velocity of the substrate is 120rpm, spray gas pressure is l. ompa, the diameter of the delivery tube is 3. 6mm, the drawing velocity of the substrate will be adjusted on - line with a plc on the basis of the spray
通過對多層噴射沉積原理及工藝參數的研究，得出制備al - 22si - 3cu - 1mg合金的最佳工藝參數為：噴射高度為220mm - 230mm ，基底轉速為120rpm ，霧化器掃描速度為30mm / s ，基底下降轉速依據噴射情況由智能控制器進行實時調整，噴射角度為30 ，初始偏心距為30mm ，導流管直徑為3 . 6mm ，霧化氣壓為1 . 0mpa 。分享友人