当前位置：首页 > 过刊浏览->2023年第34卷第5期
高压天然气管道内水合物浆液流动特性的数值模拟
Numerical Simulation on the Hydrate Slurry Flow Characteristics in High-pressure Natural Gas Pipelines
浏览(138) 下载(3)
- DOI:
- 作者:
- 马文礼1 ，曾陈宇1 ，苏比努尔·艾海提2 ，刘洪志1 ，陈 茁1 ，王艳芝1
Ma Wenli 1 ，Zeng Chengyu 1 ，Aihaiti Subinuer 2 ，Liu Hongzhi 1 ，Chen Zhuo 1 ，Wang Yanzhi 1
- 作者单位:
- 1.延安大学石油工程与环境工程学院，陕西 延安 716000；2.中石油克拉玛依石化有限责任公司，新疆 克拉玛依 834003
1.School of Petroleum Engineering and Environmental Engineering，Yan‘an University，Yan’an，716000；2.PetroChina Karamay Petrochemical Co. Ltd.，Karamay 834003
- 关键词:
- 水合物；天然气管道；数值模拟；FLUENT
Hydrate slurry；Natural gas pipeline；Numerical simulation；FLUENT
- 摘要:
- 摘要：高压天然气管道内水合物的沉降堆积会引发严重的安全问题，而理解水合物浆液流动特性是解决问题的关键。文中运用计算流体力学的方法，利用FLUENT软件对高压直管内水合物浆液的流动特性进行数值模拟，探究入口压强、水合物颗粒体积分数、水合物颗粒粒径和水合物颗粒密度对水合物浆液流动特性的影响。结果表明，在高压天然气管道内，水合物颗粒会沿着管道壁面在近壁面区域发生沉降堆积，且其沉积程度会随着入口压力，颗粒体积分数，水合物颗粒粒径的增大而增加，而水合物颗粒密度对其沉积特性整体影响较大。Abstract:The settlement and accumulation of hydrates in high-pressure natural gas pipelines can cause serious safety issues, andunderstanding the flow characteristics of hydrate slurry is the key to solving the problems. In this paper, the method of computationalfluid dynamics is used to simulate the flow characteristics of hydrate slurry in high-pressure straight pipes by using FLUENTsoftware, and the influence of inlet pressure, inlet volume fraction of hydrate particles, hydrate particle size and hydrate particledensity on the flow characteristics of hydrate slurry is explored. The results indicate that hydrate particles will settle and accumulatealong the pipeline wall in the near-wall region in high-pressure natural gas pipelines, and their accumulation will increase with theincrease of inlet pressure, particle volume fraction, and hydrate particle size. The density of hydrate particles has a significantimpact on their deposition characteristics.