复杂天然气管网系统工艺参数研究

STUDY OF TECHNICAL PARAMETERS IN COMPLICATED NATURAL GAS PIPE NETWORK SYSTEM

通过对复杂树枝状输气管网系统工艺参数的研究 ,使在考虑管网本身技术先进性的前提下 ,复杂天然气管网的设计在经济上达到节约投资、增加效益。在设计中采用最优化技术 ,将问题分解成管径优化和压气站优化两个可顺序求解的子问题 ,建立两个子问题的数学模型 ,并详细阐述了模型的求解方法 ,同时还研制开发了复杂树枝状干线输气管网系统的优化设计软件。设计结果使管网投资费用最低、管径、壁厚、压气站压比等工艺参数配置最优。最后通过实例计算 ,验证了理论上的正确性以及在工程上的实用性 ,可为管线的规划设计 ,可行性研究以及经济评价提供依据 ,对其它优化研究也具有一定的启发性和参考价值。

The purpose of this paper is to economize the investment and to increase the benefit of our design about the complicated natural gas pipe network under the presupposition that the pipe network itself is advanced through the research of technical parameters in complicated treed natural gas transmission pipe network system. The optimization design was applied into this research and the problem was divided into two sequential subproblems, one is the pipe diameter optimization, the other is the compressor station optimization. The mathematical models were established and solved out, also the optimization design software was developed. The result of the design minimized the consumption of the investment and optimized the arrangement of the technical parameters, such as the diameter of the pipe etc. The results of the example provided for the theoretical support of the plan design, feasibility research and economical evaluation in pipeline, and it is also valuable for reference in other optimization research.