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| Analysis of the current situation of pressure pipelines in liquefied petroleum gas supply stations |
| Li Jincheng1, Cui Aide2 |
| 1. The IT Electronics Eleventh Design & Research Institute Scientific and Technological Engineering Corporation Ltd., Hebei Branch, Shijiazhuang 050000, China; 2. Xinfa Pharmaceutical Corporation Ltd., Dongying 257500, China |
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Abstract A large number of liquefied gas stations in China are replacing the pressure pipelines with smaller diameters to avoid pressure pipeline supervision. In order to ensure production safety and provide reference for functional department supervision and management, through the comparison and simulation calculation of domestic regulatory standards, it was analyzed and summarized that simply reducing pipeline specifications will exceed the maximum flow rate allowed by the regulations, leading to the gasification of liquefied petroleum gas. The research conclusion is that without replacing the existing large displacement compressor and hydrocarbon pump in the station, changing the DN50 pipeline to a DN40 pipeline will cause the pipeline system pressure of liquefied petroleum gas to approach its saturated vapor pressure before entering the hydrocarbon pump, and the hydrocarbon pump will experience cavitation.
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| [ 1 ] GB11174-2011，液化石油气[ S ].
[ 2 ] 危险化学品分类信息表（2015）[ S ].
[ 3 ] PD CEN TR16793-2016, Technical Committee CEN /TC305. G-
uide for the selection,application and use of flamearresters[ S ].
[ 4 ] 特种设备目录（2014）[ S ].
[ 5 ] 中华人民共和国中央人民政府.特种设备安全监察条例（2009）[ Z ].
[ 6 ] 国家市场监督管理总局. 市场监管总局关于特种设备行政许可有关事项的公告[2021]41号 [ Z ].
[ 7 ] TSG D7006-2020，压力管道监督检验规则[ S ].
[ 8 ] TSGD7005-2018，压力管道定期检验规则-工业管道[ S ].
[ 9 ] GB51142-2015，液化石油气供应工程设计规范[ S ].
[ 10 ] GB/T34275-2024，压力管道规范 长输管道[ S ].
[ 11 ] GB/T1047-2019，国家市场监督管理总局. 管道元件公称尺寸的定义和选用[ S ].
[ 12 ] HG/T20256-2016，化工高压管道通用技术规范[ S ].
[ 13 ] 东北电力设计院. 火力发电厂汽水管道零件及部件典型设计2002版[ M ]. 吉林：吉林科学技术出版社，2003.
[ 14 ] 严铭卿. 液化石油气槽车卸车用压缩机排量计算公式的推导[ J ]. 城市煤气，1980（ 4 ）：28 - 42.
[ 15 ] HG/T20592~HG/T20635-2009，钢制管法兰、垫片、紧固件[ S ].
[ 16 ] GB/T9125.1-2020，钢制管法兰连接用紧固件第1部分：PN系列[ S ].
[ 17 ] GB/T9125.2-2020，钢制管法兰连接用紧固件第1部分：Class系列[ S ].
[ 18 ] GB/T20801.4-2020，压力管道规范 工业管道第4部分制作与安装[ S ].
[ 19 ] GB50236-2010，现场设备、工业管道焊接工程施工规范[ S ].
[ 20 ] HG20559-93，管道仪表流程图设计规定[ S ].
[ 21 ] GB50316-2000，工业金属管道设计规范（2008版）[ S ].
[ 22 ] 姚玉英. 化工原理[ M ]. 天津：天津科学技术出版社，1992. |
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