输气管道工程放空系统的模拟计算  

Model Calculation of Venting System in Gas Pipeline Project

作　　者：赵文利 Zhao Wenli(North China Branch of China National Petroleum Engineering and Construction Corporation,Renqiu 062550,China)

机构地区：[1]中国石油工程建设有限公司华北分公司,河北任丘062550

出　　处：《云南化工》2024年第2期136-140,共5页Yunnan Chemical Technology

摘　　要：放空泄压在输气管道工程中是不可缺少的操作,如生产运行过程中设备或阀门的检维修、管道疲劳导致泄漏以及火灾等情况,需对线路或站场中的天然气快速泄压并安全的排放到大气中。安全阀的关键选型及利用TG NET和HYSYS软件对天然气管道进行放空模拟计算,可以分析并确定放空过程中放空量、放空时间和限流孔板的尺寸等重要数据。通过对天然气管道的深入计算分析,能够大幅度降低天然气的损耗并缩短放空时间,降低环境噪音,适用于长距离输气管道降压放空操作,同时也对实现站场及线路的日常管理,节约建设成本提供帮助。Venting and pressure relief is an essential operation in gas transmission pipeline projects,such as inspection and maintenance of equipment or valves,pipeline fatigue and leakage caused by fire,etc.It is necessary to quickly release the pressure of natural gas in pipeline sections or stations and safely discharge it into the atmosphere.Selection and calculation of safety valve,using TG NET and HYSYS software to simulate and calculate the venting of natural gas pipeline,and analyzing and determining the important data such as venting volume,venting time and orifice size.Through in-depth analysis of natural gas pipelines,the loss of natural gas can be greatly reduced,the venting time can be shortened and environmental noise can be reduced.It is suitable for depressurization and venting operation of long-distance gas pipelines,and at the same time,the daily management of stations and lines can be realized,and the construction cost can be saved.

关 键 词：放空计算 安全阀 限流孔板 TG NET HYSYS 

分 类 号：TE97[石油与天然气工程—石油机械设备]