| 长输管道增压输送工艺计算的若干问题 |
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| 引用本文： | 余汉成,陈凤,孙在蓉,杨文川.长输管道增压输送工艺计算的若干问题[J].油气储运,2012,31(3):228-231,246,247. |
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| 作者姓名： | 余汉成 陈凤 孙在蓉 杨文川 |
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| 作者单位： | 中国石油工程设计有限公司西南分公司,四川成都,610017 |
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| 基金项目： | 中国石油集团重点工程项目“陕京二线输气管道工程设计”,S2002-19D |
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| 摘 要： | 长输管道增压输送工艺计算中需对不同方案进行技术和经济比选,分析计算过程涉及的参数众多且相互影响,是个费时费力的系统工程。通过管道气体最佳流速初选管径的方法可以展开管道的其他工艺计算,如两个中间压气站之间进行不同管径管道的增压压比和站间距的比选、压缩机功率计算、压缩机出口气体温度计算等。同时,在压缩机轴功率计算中,提出了压气站离心式压缩机轴功率计算的简化公式,对压缩机出口气体温度的计算公式进行了修正。工程实践证明,该计算方法简便实用,计算结果具有较高的准确度。
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| 关 键 词： | 长输天然气管道 增压输送 管径 压比 站间距 空冷器 |
Process calculation issues of boosting transmission for long-distance gas pipeline |
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| Yu Hancheng,Chen Feng,Sun Zairong,Yang Wenchuan.Process calculation issues of boosting transmission for long-distance gas pipeline[J].Oil & Gas Storage and Transportation,2012,31(3):228-231,246,247. |
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| Authors: | Yu Hancheng Chen Feng Sun Zairong Yang Wenchuan |
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| Institution: | Southwest Branch of PetroChina Engineering Design Co.Ltd |
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| Abstract: | Technical and economic comparison and selection must be done during the process calculation of boosting transmission for long-distance gas pipeline,which is a time-consuming system engineering due to the numerous and interplayed parameters involved in its analysis and calculation process.The method on the initial pipe diameter chosen by gas flowrate can be used to expand other process calculations,for instance,the calculation in pressure ratio comparison/selection and station spacing for different pipe diameters between two intermediate compressor stations,shaft power of compressor and outlet gas temperature of compressor,etc..At the same time,a simplified formula for shaft power calculation of centrifugal compressor is proposed,and the formula for outlet gas temperature of compressor is amended.Engineering practice has proved that the calculation method mentioned above is simple for application,and the calculation result has sound accuracy. |
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| Keywords: | long-distance gas pipeline boosting transmission pipe diameter pressure ratio station spacing air cooler |
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