低压管道灌水均匀性的影响因素及对策  

Influence Factors and Countermeasures of Low-pressure Pipeline Irrigation Uniformity

作　　者：王洪俊 WANG Hongjun(Zhongshan Water Resources and Hydropower Survey Design Consulting CO.LTD.,Zhongshan 528400,China)

机构地区：[1]中山市水利水电勘测设计咨询有限公司,广东中山528400

出　　处：《河南水利与南水北调》2022年第2期84-85,共2页Henan Water Resources & South-to-North Water Diversion

摘　　要：低压管道是农田灌溉中的重要载体,其管道灌水均匀性直接影响农田灌水的效率与效果,为了确保其具有高效灌溉的特点,文章就以低压管道输水灌溉技术灌水均匀性为核心研究内容,首先对低压管道输水灌溉技术的特点、适用条件进行阐述,又对文中案例低压管道输水灌溉系统的组成进行简要说明,后对低压管道输水灌溉技术灌水均匀性影响因素进行分析,包括压力差影响、放水口工作水头设计不合理、实际出流量和设计流量不匹配等因素,最后提出相应的设计方法和解决对策,希望为相关工程的建设和管理提供参考。Low pressure pipeline is an important carrier in farmland irrigation.Its uniformity directly affects the efficiency and effect of farmland irrigation.In order to ensure that it has the characteristics of efficient irrigation,the uniformity of the low pressure pipeline irrigation technology is taken as the core research content in this paper.Firstly,the characteristics and applicable conditions of low pressure pipeline irrigation technology are described.Secondly,the composition of low pressure pipeline irrigation system is briefly described.Thirdly,the factors influencing the uniformity of irrigation water in low pressure pipeline technology are analyzed,including the pressure difference,unreasonable design of working head at discharge outlet,mismatching of actual discharge and designed discharge.Finally,the corresponding design methods and countermeasures are put forward.It is hoped that the construction and management will provide reference for related projects.

关 键 词：低压管道输水灌溉 灌水均匀性 影响因素 

分 类 号：S275[农业科学—农业水土工程]