直径1422mm、压力12MPa管道工艺方案经济性研究

Economic Research on the technology of 1422mm and pressure 12MPa pipeline

更大口径、更高压力,更高钢级是未来天然气管道发展的方向。运用费用年值法确定经济分界点和1422mm、12MPa管道方案的输量范围。结论:年设计输气量大于300亿方时,重点考虑1422mm、压力12MPa管道方案。

Larger diameter,higher pressures,higher grade design is the future direction of development of the natural gas pipeline. Using annual cost method to determine the economic cut-off point and amount ranging from 1422mm,12MPa pipeline programs. Conclusion:when designed flow is more than 30 billion cubic meters,we can take 1422mm,12MPa case in first place.