ISO 15886-3:2021 农业灌溉设备 洒水器 第3部分：分布特性和试验方法

标准编号：ISO 15886-3:2021

中文名称：农业灌溉设备 洒水器 第3部分：分布特性和试验方法

英文名称：Agricultural irrigation equipment — Sprinklers — Part 3: Characterization of distribution and test methods

发布日期：2021-03

标准范围

本文件规定了用于测试和描述灌溉喷头配水模式的条件和方法。本文件中使用的术语“洒水器”具有广泛的通用意义，旨在涵盖各种各样的产品。所述的具体性能测量包括分布均匀性、湿润半径和喷水轨迹高度。本文件适用于所有灌溉喷头分类，需要进行这三项性能测量，以验证制造商定义的设计目标。本文件涉及室内和室外试验以及径向和全网格试验。其组织方式是，首先处理所有试验的共同条件，然后处理仅适用于室内试验的条件，最后处理仅适用于室外试验的条件。对于任何给定的喷头，各种各样的喷头配置、操作条件和调整至少在理论上需要相应的大量测试。如果仍然满足精度标准，测试机构和制造商可以使用插值技术来减少实际测试运行的次数。本文件不涉及用于防冻的洒水器所需的具体性能测试。本文件不涉及液滴光谱测量和表征的主题，以及土壤压实、喷雾漂移、蒸发损失等相关问题，所有这些都可以作为喷灌系统设计中的考虑因素。本文件用于评估相同且以固定重复几何图案排列的洒水器的灌溉覆盖率。本文件不适用于移动系统。本文件适用于部分圆形喷头，前提是测试机构能够满足性能参数中潜在异常的问题。注:附录A说明了喷洒器模式均匀性的表征程序。附录B介绍了环形洒水器的试验。

This document specifies the conditions and methods used for testing and characterizing the water distribution patterns of irrigation sprinklers.The term sprinkler is used in this document in a broad generic sense and is meant to cover a wide variety of products. The specific performance measurements addressed include distribution uniformity, wetted radius, and water jet trajectory height. This document applies to all irrigation sprinkler classifications for which those three performance measurements are required to verify the design objectives as defined by the manufacturer.This document deals both with indoor and outdoor tests and with radial and full grid tests. It is organized so as to deal with conditions common to all tests first and then with conditions unique to indoor testing only and finally with conditions unique to outdoor testing only.For any given sprinkler, a wide range of nozzle configurations, operating conditions, and adjustments generate at least a theoretical need for a correspondingly large number of tests. Testing agencies and manufacturers can use interpolation techniques to reduce the number of actual test runs provided accuracy standards are still being met.This document does not address the specific performance testing required for sprinklers intended for use in frost protection.This document does not address the topic of drop spectrum measurement and characterization and the related questions of soil compaction, spray drift, evaporative losses, etc., all of which can be considerations in the design of sprinkler irrigation systems.This document is used for evaluating irrigation coverage of sprinklers that are identical and arranged in a fixed repeating geometric pattern. This document does not apply to moving systems.This document applies to part-circle sprinklers provided that the testing agency can satisfy questions of potential anomalies in performance parameters.NOTE Annex A addresses the procedures for the characterization of sprinkler pattern uniformity. Annex B addresses testing part-circle sprinklers.

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