conveying velocity 中文意思是什麼
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The pulse pneumatic conveying system has been a important transporting method for grain material, because of lower velocity, higher ratio of blend and a littler gas, as well as shattering less materiel, abrasing pipeline and easy recovery
脈沖氣力輸送裝置以其低速、高混合比、低耗氣量等一系列持點，並由此帶來的被輸送物料破碎少、管道磨損小、產生粉塵少並且易於回收等優點，成為新一代粉粒料氣力輸送設備，並且被廣泛使用。 -
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。 -
The results showed that the fluidization air velocity was the most important factor for the average mass ratio of powder and gas in the conveying, and that the least important was the agitator vertical height
試驗結果表明，對于平均輸送固氣質量比，流化風速的影響最大，攪拌棒提升高度的影響最小。 -
Research on the rule of conveying belt resistance coefficient varied with the velocity
帶式輸送機阻力隨帶速變化規律性的實驗研究 -
Secondly, according to the theory of impact echo method examining flaws, the road surface and the bridge surface are aimed as study targets, four concrete plates are made with differently deep surface - opening cracks. using the experimental system of impact echo method made by sansalone etc., this paper measures the stress waves velocity conveying in concrete plates by using one transducer or two transducers, and measures the depth of surface - opening cracks in concrete plates by using two transducers, and then the important data are attained
接著，根據沖擊反射法檢測結構物缺陷的原理，以路面和橋面的開口裂紋為研究對象，製作了帶有不同深度開口裂紋的混凝土板塊，使用sansalone等人開發的沖擊反射法實驗系統，用單傳感器和雙傳感器分別對混凝土板塊內應力波傳播的速度和不同深度的開口裂紋進行了測量，得到了重要的實驗數據。 -
Under dynamic loading, buried pipe would first damaged in compressive region of bilateral fault, so special treatment should be done to pipe in bilateral fault region. buried pipeline ’ s damage under fluid - structure interaction is analyzed through adina - fsi with conveying medium and velocity in consideration
在考慮管內介質及流速的情況下，應用adina中流體-結構耦合分析求解器adina - fsi分析了固液耦合作用下地下管道的破壞情況。 -
The conveying medium in pipe has great effect on buried pipeline ’ s damage, its flow pattern, temperature, pressure change, velocity, all of these can influence the shell of pipe and its stress distribution. so it is very important to analyze the fluid - pipe coupling
管道內部的輸送介質對管道破壞影響也很大，管內介質的流態、溫度、壓力變化、流速等對管壁變形和應力分佈都有影響，故管道內流體和管道間的耦合分析對地下管道破壞分析很重要。
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