农业灌溉设备.水驱动化学喷射泵

[中文适用范围]： 本标准规定了水驱动化学注射泵（以下简称水驱动注射泵）的结构、使用要求和试验方法。 这些水驱动注射泵用于将化学品注入灌溉系统。 这些化学品包括液体肥料和肥料溶液以及其他可溶性农业化学品，例如酸和农药。 本文件适用于在水温高达 50 °C 的情况下运行的水驱动注射泵，以及灌溉中常规使用的化学品的类型和浓度。 它不涵盖防回流装置的功能，也不适用于根据文丘里原理运行的将化学品注入灌溉系统的水驱动装置。 [外文原描述]： This document specifies the construction, operational requirements and test methods for water-driven chemical injector pumps (hereinafter, water-driven injector pumps). These water-driven injector pumps are used to inject chemicals into irrigation systems. The chemicals include liquid fertilizers and solutions of fertilizers and other soluble agricultural chemicals such as acids and pesticides. This document is applicable to water-driven injector pumps intended to operate at water temperatures of up to 50 °C and with the types and concentrations of chemicals routinely applied in irrigation. It does not cover the function of backflow prevention devices, nor is it applicable to water-driven devices for injecting chemicals into an irrigation system operating on the basis of the Venturi principle.