轻小型喷灌机组能耗计算与评价方法  

Energy consumption calculation and evaluation methods for light and small unit sprinkler system

作　　者：王新坤[1] 袁寿其[1] 刘建瑞[1] 涂琴[1] 

机构地区：[1]江苏大学流体机械工程技术研究中心,江苏镇江212013

出　　处：《排灌机械工程学报》2010年第3期247-250,共4页Journal of Drainage and Irrigation Machinery Engineering

基　　金：国家863计划项目(2006AA100211);江苏省自然科学基金资助项目(BK2008246);江苏省科技支撑计划项目(BE2008381)

摘　　要：为客观评价轻小型喷灌机组的能量消耗,应用水力机械能效计算基本方法,根据喷灌机组构成特点与运行特性,推导出喷灌机组与水泵的能耗计算公式,确定喷灌机组能耗评价指标与方法.借鉴多孔出流管道水力计算方法,采用退步法进行输水管道水力计算,应用迭代法求解喷头的流量和压力,提出喷灌机组水力计算步骤与方法.实例分析表明计算与评价方法简单实用、计算方便,进行喷灌机组能耗分析与评价具有可比性、可操作性和可靠性强的特点,计算与评价结果符合喷灌机组工程实际.研究结果能够为水泵的合理选型、管路装置优化配置与设计及喷灌机组产品的开发提供理论依据,对于提高喷灌机组装置效率、降低运行能耗,具有重要的理论意义和实用价值.In order to evaluate energy consumption of the light and small unit sprinkler system objectively,the calculating methods and evaluation indicator of unit sprinkler system were deduced based on the hydraulic machinery energy basic approach and unit sprinkler system structure and operating characteristics.By borrowing ideas of hydraulic computating methods of pipeline with multiple outlets,the hydraulic procedure and methods for unit sprinkler system pipeline were put forward by using back step method to handle the hydraulic calculation of pipeline and applying iteration method to solve the flow and head of sprinkler.Example analysis shows that the calculating and evaluating methods have the advantages of simple to use,easy to calculation,comparability,maneuverability,reliability and meeting practice projects.The calculating and evaluating methods will provide the theory basis for reasonable selection of pump,optimizing configuration and design of pipe installation and product development of unit sprinkler system,and have important theoretical significance and practical value for improving efficiency and reducing energy consumption of unit sprinkler system installation.

关 键 词：喷灌机组 能耗 评价指标 水力计算 效率 

分 类 号：S277.9[农业科学—农业水土工程]