| 摘要: |
| 大规模自压式树状灌溉管网具有高差大距离长的特点，在管网系统适当位置布置若干个调压池，可保证灌溉管网安全运行并降低总投资。本文将调压池和干管管网作为一个整体，提出了调压池布置与管径组合同步优化的方法，采用基于整数编码的双重编码方法，以干管管道造价与调压池造价之和最小为目标函数，以压力与管道流速为约束条件，并建立相关数学模型，运用遗传算法求解，实现了调压池布置优化与管径优化的同时进行。将优化方案与人工经验法相比较，结果表明，干管配水节点工作压力更为均衡，干管总长减少12.02%，系统总投资减少17.23%，表明该方法可获得较优的自压式树状灌溉管网调压池布置方案，为地形条件相似的管网布置提供了参考。 |
| 关键词: 自压式树状管网；调压池；遗传算法；整数编码；双重编码 |
| DOI： |
| 分类号:TV93 |
| 基金项目:“十二五”国家科技支撑计划课题2015BAD24B02(高效安全输配水技术集成与示范) |
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| Study on Synchronization Optimization of Pressure Regulating Tank Arrangement and Pipe Diameter of Irrigation Pipe Network |
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gao yuan1,2, Lou Zongke1,2
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1.Northwest A&2.F University
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| Abstract: |
| The large-scale self-pressing tree-shaped irrigation pipe network has the characteristics of high difference and long distance. Several pressure regulating tanks are arranged at appropriate positions of the pipe network system to ensure the safe operation of the irrigation pipe network and reduce the total investment. In this paper, pressure regulating tank and the main pipe network are taken as a whole, and the method of synchronous optimization of the pressure tank arrangement and the pipe diameter combination is proposed. The double coding method based on integer coding is adopted, and the sum of the cost of the main pipe and the cost of pressure regulating tank is used. The minimum is the objective function, with the constraint of pressure and pipe flow rate, and the related mathematical model is established. The genetic algorithm is used to solve the problem, and the optimization of pressure regulating tank arrangement and the optimization of the pipe diameter are realized simultaneously. Comparing the optimization scheme with the artificial experience method, the results show that the working pressure of the main pipe water distribution node is more balanced, the total length of the main pipe is reduced by 12.02%, and the total investment of the system is reduced by 17.23%, indicating that the method can obtain better self-pressure tree irrigation. The layout scheme of the pipe network pressure regulating tank provides a reference for the pipe network arrangement with similar terrain conditions. |
| Key words: gravity tree-type pipe network; pressure regulating tank; genetic algorithm; integer coding;double coding |
