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超音速脱水分离是基于气体动力学和传热传质理论提出的-种新型天然气脱水净化分离技术。该技术采用超音速分离管,使多组分的高压天然气膨胀、提速、旋转,降温,其中的水蒸气及可凝组分发生相变成为液相并被分离出来。旋流器是超音速分离管中决定天然气脱水性能的关键部件,其在分离管内的位置会对管内流场产生重要的影响。本文借助CFD软件(FLUENT)模拟分离管内的高速流动,对比四种不同旋流器位置的超音速分离管流动过程中温度、压力和速度的变化,通过分析数值结果可以得出在相同的压损比下采用旋流后置-Ⅰ型超音速分离管可以获得更大的温降。
The supersonic dehydration separation is based on the theory of gas dynamics and heat and mass transfer - a new type of natural gas dewatering purification separation technology. The technology uses supersonic separation tube, multi-component high-pressure natural gas expansion, speed, rotation, cooling, the water vapor and condensable components phase change into a liquid phase and was isolated. Cyclone is the key component in supersonic separation tube that determines the dewatering performance of natural gas. The position inside the separation tube will have an important influence on the flow field in the tube. In this paper, CFD software (FLUENT) simulation of high-speed flow within the separation tube, the contrast of the four different cyclone position supersonic separation tube temperature flow, pressure and velocity changes, by analyzing the numerical results can be drawn in the same pressure loss Smaller than the use of cyclonic post-Ⅰ supersonic separation tube can be greater temperature drop.