输气干线放空系统放空量计算软件开发
Development of Venting Amount Calculating Software for Venting System in Gas Trunk Line
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- 引用格式:
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白雪,李自力,姜海斌,王爱玲,翁浩铭.输气干线放空系统放空量计算软件开发[J].天然气与石油,2015,33(6):0.doi:
Bai Xue, Li Zili, Jiang Haibin, Wang Ailing, Weng Haoming.Development of Venting Amount Calculating Software for Venting System in Gas Trunk Line[J].Natural Gas and Oil,2015,33(6):0.doi:
- DOI:
- 作者:
- 白 雪1 李自力1 姜海斌2 王爱玲2 翁浩铭1
Bai Xue, Li Zili, Jiang Haibin, Wang Ailing, Weng Haoming
- 作者单位:
- 1.中国石油大学(华东)储运与建筑工程学院，2.中国石油西南管道昆明输油气分公司
1.College of Pipeline and Civil Engineering, China University of Petroleum;2.PetroChina Southwest Pipeline Kunming Oil and Gas Transportation Company
- 关键词:
- 输气干线；放空系统；瞬时放空量；阀门开度；软件开发
Gas trunk line; Venting system; Instantaneous venting amount; Valve opening; Software development
- 摘要:
- 在进行放空系统设计时需要了解瞬时放空量，但输气干线放空系统中没有相应流量计对放空量进行计量，且目前关于放空量计算的公式大多没有依据。以范诺方程、输气管路流动理论为基础，同时考虑阀门开度对放空时间以及瞬时放空量的影响，通过程序语言对放空系统瞬时放空量计算进行编写，输入输气干线内气源压力、放空管规格和阀门开度等参数，即可求解出瞬时放空量，将程序计算结果与SPS软件模拟结果进行对比，误差较小。对比不同阀门开度下的瞬时放空量和放空压力，分析了阀门开度的影响，可为放空系统设计及现场放空提供理论指导。
It is needed to know instantaneous venting volume in venting system design. However, no flowmeter is available to measure instantaneous venting volume in venting system of gas trunk line and calculating formulas now available for instantaneous venting volume are mostly unreliable. Based on Fano equation and basic theory of gas transmission flow, considered is the effect of valve opening on venting time and instantaneous venting amount, applied is the programming language to calculate instantaneous venting amount of venting system in gas pipeline and entered are such parameters as gas pressure, venting line size and valve opening to calculate and obtain the instantaneous venting amount of venting system and relative error between the results obtained by using program calculation and those obtained by SPS software simulation is small. Compared are instantaneous venting amounts and venting pressures in different valve openings and analyzed is effect of valve openings on venting amount, which can provide theoretical guidance for venting system design and field venting.
