天然气掺氢对站场放空系统的影响规律分析  

Influence of hydrogen-blended natural gas on gas transmission station venting system

作　　者：刘权 徐红果 刘书文 LIU Quan;XU Hongguo;LIU Shuwen(Sichuan Kehong Company,China Petroleum Engineering Construction Corporation,Chengdu 610000,China)

机构地区：[1]中国石油工程建设有限公司四川科宏公司,四川成都610000

出　　处：《石油工程建设》2024年第1期50-53,共4页Petroleum Engineering Construction

摘　　要：为了掌握天然气掺氢后对站场放空系统的影响规律,利用ASPEN HYSYS流程模拟软件,分析天然气掺氢后放空系统的适应性。结果表明:天然气掺氢后安全阀额定泄放量始终大于所需泄放量,原安全阀能满足泄放要求;天然气掺氢不会导致放空系统运行温度超出设计范围,反而对放空管道的低温工况有明显的抑制作用;天然气掺氢会使安全阀背压轻微减小,不会导致安全阀背压及放空系统运行压力超压;天然气掺氢后放空系统管径均满足泄放要求;随着掺氢比例的提高,放空火炬的辐射热距离逐渐减小。To grasp the influence of the hydrogen-blended natural gas on the venting system of the natural gas station,this paper adopts the ASPEN HYSYS process simulation software to analyze the adaptability of the venting system after the natural gas blends with hydrogen.The results show that the rated discharge amount of the safety valve is always greater than the required discharge amount after the natural gas blends with hydrogen,and the original safety valve can meet the discharge requirements.The hydrogen-blended natural gas ensures the operating temperature of the venting system in the design range and also restrains the low-temperature operation of the venting pipeline.Hydrogen-blended natural gas slightly reduces the back pressure of the safety valve and avoids the back pressure of the safety valve and the operating overpressure of the venting system.The pipe diameter of the venting system after the natural gas blended with hydrogen meets the discharge requirements.With the increase in the hydrogen blending ratio,the radiant heat distance of the flare system gradually decreases.

关 键 词：天然气掺氢 放空系统 掺氢比例 安全阀 马赫数 

分 类 号：TE83[石油与天然气工程—油气储运工程]