仿真技术用于多来源天然气场站掺混设计
Application of simulation technology in the mixing design of multi-source natural gas stations
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- 引用格式:
-
梁平,李洋,于海鸿,罗炼,杨灿.仿真技术用于多来源天然气场站掺混设计[J].天然气与石油,2025,43(6):23-29.doi:10.3969/j.issn.1006-5539.2025.06.004
LIANG Ping, LI Yang, YU Haihong, LUO Lian, YANG Can.Application of simulation technology in the mixing design of multi-source natural gas stations[J].Natural Gas and Oil,2025,43(6):23-29.doi:10.3969/j.issn.1006-5539.2025.06.004
- DOI:
- 10.3969/j.issn.1006-5539.2025.06.004
- 作者:
- 梁平1 李洋2 于海鸿1 罗炼3 杨灿4
LIANG Ping1, LI Yang2, YU Haihong1, LUO Lian3, YANG Can4
- 作者单位:
- 1. 重庆科技大学石油与天然气工程学院, 重庆 401331; 2. 蜀南气矿泸州应急抢险维修大队, 四川 泸州 646299; 3. 重庆祥龙天然气公司, 重庆 400015; 4. 重庆燃气股份有限公司沙坪坝分公司, 重庆 430030
1. School of Petroleum and Natural Gas Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China; 2. Luzhou Emergency Rescue and Maintenance Brigade of Shunan Gas Mine, Luzhou, Sichuan, 646299, China; 3. Chongqing Xianglong Natural Gas Company, Chongqing, 400015, China; 4. Chongqing Gas Co., Ltd. Shapingba Branch, Chongqing, 430030, China
- 关键词:
- 静态混合器;天然气;掺混;仿真模拟
Static mixer; Natural gas; Mixing; Simulation
- 摘要:
在天然气开采储运过程中,各气井的天然气成分差异大。未混合均匀的天然气直接进入天然气净化厂,可能导致各列装置接收的原料气组分不同,使部分装置原料气组分偏离设计点,引发装置处理能力下降或出现不同程度的不适应,甚至造成超出净化厂设计标准被拒收的情况。工程上不同来源的天然气进入同一汇管混合后,再分别送入不同的净化厂，但这种设计依然会由于一些矿井生产原因减产或关闭,导致汇管内原来混合均匀的天然气重新形成混合不均匀,造成因超出下游净化厂标准而被拒收的情况。以工程设计优化和高效静态混合器方法解决上述问题,利用计算流体动力学软件模拟方法,讨论管汇设计技术和静态混合器设计技术,对静态混合器混合单元的尺寸、角度、厚度、长度及间距等参数进行调整并仿真模拟,设计一种效率高、压降小的适合集气装置系统的静态混合器。仿真技术可为保证不同气源天然气充分掺混提供可靠的技术保障。
In the process of natural gas exploitation, storage and transportation, the composition of natural gas produced from different gas wells varies significantly. If unevenly mixed natural gas is directly fed into a gas purification plant, the feed gas composition received by various processing trains may be different, causing some units' feed gas deviate from the design specifications. This deviation can reduce the processing capacity or cause various degrees of operational incompatibility, and may even result in rejection by the purification plant if the gas quality exceeds design limits. In engineering practice, natural gas from different sources is typically mixed in a common manifold before being separately sent to different purification plants. However, due to production reductions or shutdowns from some wells, the previously uniform mixture in the manifold can become uneven again, leading to rejection due to exceeding the standards of the downstream purification plant. This paper addresses these issues using engineering design optimization and efficient static mixers. Using computational fluid dynamics software simulation method, manifold design and static mixer design technologies are investigated. Parameters such as size, angle, thickness, length and spacing of static mixer mixing elements are adjusted and simulated to design a static mixer with high efficiency, low pressure drop and suitability for gas gathering systems. This technology provides reliable technical support for the full mixing of natural gas from multiple sources.
