微灌系统过滤装置优化选型与配置

为降低微灌过滤装置造价与运行费用，根据微灌系统过滤器组合形式与工作特性，以年费用最小为目标，建立了单体过滤器优化选型与单级组合过滤装置优化配置的数学模型，提出微灌系统过滤装置优化选型与配置的步骤与方法。算例分析表明优化选型与配置方法简便实用，所需计算参数少，易于获得最优解。单体过滤器优化选型算例的年费用降低41.5%，单级组合过滤装置优化配置算例的年费用可降低53.0%或21.2%，有效地降低了过滤装置的年费用。该文研究结果能够为微灌系统过滤装置优化与产品的研发与生产提供依据，对于降低微灌工程的造价与运行费用，促进微灌技术的发展，具有重要的参考和实用价值。

Optimal selection and collocation of filter units in micro-irrigation system

In order to reduce the manufacturing and operating cost of filter equipment in micro-irrigation, the mathematical models for the selection optimization of single-body filter and the configuration optimization of single-stage combination filter were established according to the combination pattern and working characteristic of the filters. The minimum annual cost was taken as the objective. Meanwhile the procedures and method for the equipment selection optimization and configuration of the filters were deduced. The case analyses demonstrated that the method was simple and practical, requiring fewer calculation parameters and easier to obtain the optimum solution. The annual cost of the single-body filter under the condition of optimized selection was reduced by 46.7% and that of the single-stage combination filter was decreased by 56.0% or 25.3%. The results in this work will provide a basis for the optimization and also the development and production of the filters in micro-irrigation. Beyond that it will help to cut down the manufacturing and operating cost of the micro-irrigation project and accelerate the development of the micro-irrigation technology.