超音速天然气脱水装置螺旋导流器的设计与优化

发布时间：2018-03-15 09:36

  本文选题：天然气脱水　切入点：超音速低温　出处：《化学工程》2017年04期 　论文类型：期刊论文

【摘要】：为了探究超音速天然气脱水装置螺旋导流器的最优叶片出口角,文中基于某天然气的实际组分,设计了超音速低温分离器的螺旋导流器,并利用FLUENT软件对其螺旋流发展段进行了模拟分析,将数值模拟结果与理论计算和同类设备进行性能对比,验证了其结构的合理性。分别对叶片出口角为20°,25°,30°,35°,40°螺旋导流器的模拟结果进行分析得出:出口角从20°增大至25°时,切向速度大幅度减小,继续增大,其值变化较小;不同出口角下,轴向速度基本不变,而径向速度变化较大,出口角30°时,径向速度波动最小,稳定性最高;通过比较动能与压降比值的差异,出口角25°—35°时,其值较好。综合来看,叶片出口角在30°左右其速度分布与压降损失最为合理。
[Abstract]:In order to investigate the optimal blade outlet angle of spiral diffuser in supersonic natural gas dehydration device, the helical flow guide of supersonic cryogenic separator is designed based on the actual composition of a natural gas. The spiral flow development section is simulated and analyzed by using FLUENT software. The numerical simulation results are compared with the theoretical calculation and the performance of the similar equipment. The rationality of the structure is verified. The simulation results of the blade outlet angle of 20 掳/ 25 掳/ 30 掳/ 30 掳/ 35 掳/ 40 掳helical flow guide are analyzed respectively. The results show that when the outlet angle is increased from 20 掳to 25 掳, the tangential velocity decreases significantly and continues to increase, and the change of the value is small; At different outlet angles, the axial velocity is basically unchanged, while the radial velocity changes greatly. When the exit angle is 30 掳, the radial velocity fluctuates the least and the stability is the highest. By comparing the difference between kinetic energy and pressure drop, the outlet angle is 25 掳-35 掳. Generally speaking, the velocity distribution and pressure drop loss of the blade outlet angle about 30 掳are the most reasonable.
【作者单位】： 青岛科技大学机电工程学院;天津力冠能源科技有限公司;
【基金】：山东省高等学校科技计划项目(J16LB73,J15LC16)
【分类号】：TE96
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本文编号：1615458