Use of centrifugal pumps with shielded asynchronous motors in precision irrigation systems for precision agriculture

Abstract

Precision irrigation in the context of precision farming principles should be based on a systematic approach to achieve the targets of meeting the average spatial needs of crops for water and dissolved nutrients. Precision irrigation, based on advanced irrigation management technologies, combined with remote sensing and simulation technologies, provides a practical solution to the problem of managing the spatial and temporal components of water to meet the specific needs of individual plants. The spatial component of water equivalent to its volume is supplied to the irrigation zone by means of supply water pipes, and the temporary component equivalent to its flow is provided by means of booster pumps. With intensive water consumption, the supply pipelines do not provide the irrigation systems with the required volumes of water. In this case, the static water supply is provided by using storage tanks. In this paper, the need to use a storage tank as a technical component of irrigation management is considered from the point of view of solving a specific management problem related to ensuring the current value of the green mass per unit area of sowing to the level of its calculated value. The use of a storage tank and a group of centrifugal pumps of a special hermetic design as pumping equipment allows you to obtain a closed-type irrigation scheme that has the necessary reserve of static and dynamic stability of the flow characteristics.