天然气增压卸车工艺的模拟与分析
|
摘要
为了克服LNG槽车空温气化器自增压卸车工艺流程复杂、效率低、卸车时间长、受环境因素干扰大、占地面积大的缺点,提出了一种天然气增压卸车工艺流程。采用流程数值模拟软件,建立天然气增压卸车工艺的计算模型,研究计算天然气增压卸车过程中LNG槽车储罐内压力、温度、液位等参数随时间的变化过程,计算卸车过程所需时间及天然气流量。分析表明,天然气增压卸车流程简单、卸车时间短、效率高,且不受环境条件影响,能够大幅提高卸车撬的利用率。
In order to overcome the disadvantages of LNG truck self-pressurized unloading process, such as complex process, low efficiency, long unloading operation time, large disturbance by environmental factors and so on, the natural gas pressurized unloading process was proposed. Using process simulation software, the calculation model of natural gas pressurized unloading process was established and was used to study the operation pressure, operation temperature and actual liquid level in LNG tank during the unloading process. Meantime the total operation time required and natural gas flow rate were calculated for unloading process. The results showed that the natural gas pressurized unloading process was feasible and simple. The unloading operation had the characteristic of much shorter operation time, higher efficiency, and less disturbance by environmental factors.
In order to overcome the disadvantages of LNG truck self-pressurized unloading process, such as complex process, low efficiency, long unloading operation time, large disturbance by environmental factors and so on, the natural gas pressurized unloading process was proposed. Using process simulation software, the calculation model of natural gas pressurized unloading process was established and was used to study the operation pressure, operation temperature and actual liquid level in LNG tank during the unloading process. Meantime the total operation time required and natural gas flow rate were calculated for unloading process. The results showed that the natural gas pressurized unloading process was feasible and simple. The unloading operation had the characteristic of much shorter operation time, higher efficiency, and less disturbance by environmental factors.
引文
[1] 肖超然.槽车装车方式对LNG接收站的影响[J].科学管理,2017,24(11):226.
[2] 王岩.降低LNG槽车卸液剩余量的操作流程[J].石油工程建设,2016,42(3):93-94.
[3] 贾保印.LNG槽车装车过程BOG产生的动态模拟与分析[J].石油与天然气化工,2018,47(3):49-53.
[4] 张甲深.卸净LNG罐车的液体[J].油气世界,2008(12):39-40.
[5] 高洁,刘宏伟,吴小芳.液化天然气带泵运输车(五)[J].专用汽车,2012(10):75-77.
[6] 高黎敏.LNG加气站联合卸车工艺设计的探讨[J].煤气与热力,2013,33(10):41-42.
[7] 王军.LNG汽车和加气站的探讨[J].煤气与热力,2006,26(3):4-5.
[8] 吴佩英.LNG汽车加气站设计的探讨[J].煤气与热力,2006,26(9):7-9.
[9] 郭洲,曾树兵,陈文峰.用动态模拟技术进行油气田工艺处理系统开停工方案的研究[J].天津化工,2013,27(5):20-23.
[10] 高晓新,王颖,陶阳,等.稳态及动态模拟在丙烷-异丁烷分离中的应用[J].现代化工,2014,34(5):154-156.
[11] 杨天宇,朱海山,郝蕴,等.压力容器火灾工况安全泄放质量流量的动态研究[J].石油与天然气化工,2014,43(2):208-212.
[12] 郑志刚,潘澍宇,邓婷婷,等.碳四容器安全阀火灾工况泄放的动态模拟[J].广州化工,2013,41(22):202-204.
[13] 郝吉鹏,张雷.乙烯装置脱乙烷塔的动态模拟分析[J].化工技术与开发,2013,42(7):51-56.
[14] 张永铭,杨焘,刘博,等.动态模拟在芳烃抽提装置设计中的应用[J].化学工程,2011,39(11):88-91.
[15] 孔录,董秀芹,张敏华.乙烯脱轻塔精馏过程及安全事故动态模拟[J].计算机与应用化学,2014,31(6):679-682.
[2] 王岩.降低LNG槽车卸液剩余量的操作流程[J].石油工程建设,2016,42(3):93-94.
[3] 贾保印.LNG槽车装车过程BOG产生的动态模拟与分析[J].石油与天然气化工,2018,47(3):49-53.
[4] 张甲深.卸净LNG罐车的液体[J].油气世界,2008(12):39-40.
[5] 高洁,刘宏伟,吴小芳.液化天然气带泵运输车(五)[J].专用汽车,2012(10):75-77.
[6] 高黎敏.LNG加气站联合卸车工艺设计的探讨[J].煤气与热力,2013,33(10):41-42.
[7] 王军.LNG汽车和加气站的探讨[J].煤气与热力,2006,26(3):4-5.
[8] 吴佩英.LNG汽车加气站设计的探讨[J].煤气与热力,2006,26(9):7-9.
[9] 郭洲,曾树兵,陈文峰.用动态模拟技术进行油气田工艺处理系统开停工方案的研究[J].天津化工,2013,27(5):20-23.
[10] 高晓新,王颖,陶阳,等.稳态及动态模拟在丙烷-异丁烷分离中的应用[J].现代化工,2014,34(5):154-156.
[11] 杨天宇,朱海山,郝蕴,等.压力容器火灾工况安全泄放质量流量的动态研究[J].石油与天然气化工,2014,43(2):208-212.
[12] 郑志刚,潘澍宇,邓婷婷,等.碳四容器安全阀火灾工况泄放的动态模拟[J].广州化工,2013,41(22):202-204.
[13] 郝吉鹏,张雷.乙烯装置脱乙烷塔的动态模拟分析[J].化工技术与开发,2013,42(7):51-56.
[14] 张永铭,杨焘,刘博,等.动态模拟在芳烃抽提装置设计中的应用[J].化学工程,2011,39(11):88-91.
[15] 孔录,董秀芹,张敏华.乙烯脱轻塔精馏过程及安全事故动态模拟[J].计算机与应用化学,2014,31(6):679-682.