管道新型转轮式干燥系统设计研究
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摘要
针对国内目前常用的天然气长输管道传统干燥系统的诸多弊端,设计了一种管道新型转轮式干燥系统,依托国内某LNG接收站输气干线,对该干燥系统干空气流量和露点等设计参数进行了优化,结果表明,与传统的管道干燥系统相比,新干燥系统干燥工期可减少35%,运行能耗可降低50%。对管道转轮式干燥机的除湿性能进行了数值模拟研究,对比模拟计算结果与工程实际运行数据,两者基本吻合。理论与实践证明,新型管道转轮式干燥系统用于天然气长输管道除水后的干燥施工效果良好。
The conventional pipeline drying system has the disadvantages of high energy consumption,high transportation cost and a large amount of equipment,so a novel rotary drying system of pipeline is proposed. Based on the gas pipeline at a domestic LNG import terminal,the dry air flow rate and dew point of the rotary drying system are obtained by optimizing the calculation. The results show that compared with traditional pipeline drying systems,the new drying system can reduce drying period and energy consumption by 28% and 50% respectively. The performance of the rotary dehumidifier which is the key equipment in the whole system is studied by numerical simulation method. The calculated results are compared with the practical operation data,which shows both are basically agreeable. The practical application proves the rotary drying system has good drying effect for long-distance natural gas pipeline.
The conventional pipeline drying system has the disadvantages of high energy consumption,high transportation cost and a large amount of equipment,so a novel rotary drying system of pipeline is proposed. Based on the gas pipeline at a domestic LNG import terminal,the dry air flow rate and dew point of the rotary drying system are obtained by optimizing the calculation. The results show that compared with traditional pipeline drying systems,the new drying system can reduce drying period and energy consumption by 28% and 50% respectively. The performance of the rotary dehumidifier which is the key equipment in the whole system is studied by numerical simulation method. The calculated results are compared with the practical operation data,which shows both are basically agreeable. The practical application proves the rotary drying system has good drying effect for long-distance natural gas pipeline.
引文
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[3]解立功.采用干空气干燥长输气管道的施工技术[J].石油工程建设,2003,29(6):27-34.
[4]高发连.天然气管道干燥施工方法[J].油气储运,2004,23(10):43-45.
[5]倪洪源,孙树山.天然气长输管道干燥技术[J].石油工程建设,2004,30(6):13-16.
[6]孙碧君.天然气长输管道干燥技术研究[D].天津:天津大学,2006:21-26.
[7]曹学文,林宗虎,王立洋,等.海底输气管道干空气干燥工艺技术[J].天然气工业,2004,24(5):116-119.
[8]苏欣,黄坤,袁宗明,等.国内外天然气长输管道干燥技术[J].油气储运,2006,25(1):1-4.
[9]安治国.天然气长输管道储气升压平衡干燥工艺[J].石油工程建设,2013,39(2):27-30.
[10]许忠亮.加纳天然气海底外输管道试运和投产[J].石油工程建设,2015,41(5):28-31.
[11]王海林.沙特阿美公司进行管道清管测径试压干燥的方法[J].石油工程建设,2012,38(3):60-62.
[12]杜永军.海底登陆管道穿越航道改造技术[J].石油工程建设,2014,40(3):33-35.
[13]吴锦江.山地长输管道的清管扫线与试压[J].石油工程建设,2015,41(6):66-68.