输气管道系统调整技术研究

STUDY ON ADJUSTMENT TECHNOLOGY OF NATURE GAS PIPELINE SYSTEM

对现役输气管道系统进行了调整改造方案的研究 ,通过分析比较目前工程实际常用的输气管道计算公式 ,考虑到输气管道的实际运行状况 ,提出了适用于现役输气管道的计算公式。根据输气管道的数学模型 ,对输气管道进行了水力计算 ,提出了判断输气管道系统是否需要调整改造的方法。当需要调整时 ,提出了三种调整改造方案 ,一是在原来的管网中增设压缩机站 ;二是更换原有的部分输气管段 ;三是铺设副管。将此方法应用于川西南地区的一条输气管道 。

By analyzing and comparing nature gas pipeline calculation formula in common use, the adjustment and reconstruction project of the active duty of nature gas pipeline system was studied in the paper, considering the fact running status of the nature gas pipeline, the calculation formula applying the active duty of nature gas pipeline was presented. According to the mathematical model established, the waterpower calculation of the gas pipeline was done, and the gas pipeline system that needs to adjust and reconstruct or not was put forward. When the gas pipeline system need to adjust, three projects was presented in this paper: the first one is to add the compressor station to the old nature gas pipeline network, the second is to replace part of segment in the existent gas pipeline, and the last is to lay the looped pipeline. The three projects were successful to be applied in the gas pipeline at Southwest Area in Sichuan.