Research results of technical and qualitative indicators of irrigation sprinkler machine "Volga-FК1"

Abstract

The purpose of the study is to reduce the weight and cost of "Volga-FK1" multi-support sprinkling machines with a polyethylene pipeline and improve the quality of irrigation by improving sprinkler nozzles and surface irrigation devices. The article presents the results of research on a new multi-bearing truss sprinkling machine "Volga-FK1".The peculiarity of this machine is that the water pipeline consists of a steel pipeline, which provides sufficient rigidity of the spans, and a polyethylene pipeline mounted parallel to the steel pipeline. With an increase in the length of the machine and water flow from 7 to 70 l/s, the diameter of the steel pipeline should increase from 102 to 114 mm, and the diameter of the polyethylene pipeline - from 50 to 160 mm. Low pressure at the inlet to the machine (0,15-0,35 MPa) will reduce the energy costs for irrigation when using low-pressure pumping units and reduce the cost of building a closed irrigation network. The use of polyethylene pipeline on the "Volga-FK1" DM makes it possible to reduce the weight of an incomplete (1...4-support) machine to 52-87 % and to 18-26 % - 5...9-support machine. The cost of the pipeline of machines is reduced by 16,8-32,5 %. Sprinkling machine "Volga-FK1" with surface irrigation devices and improved sprinkler nozzles provides an increase in irrigation uniformity at a wind speed of 3-5 m/s up to 0,7-0,8, or by 10-15 % (sector nozzles "Kuban-LK1" - 0,6-0,74). The Volga-FC1 sprinkler machine with improved sprinkler nozzles on surface irrigation devices increases the uniformity of irrigation water supply at a wind speed of 3-5 m/s to 0,7-0,8, which is 8-16 % more than the "Kuban-LK1" DM when installing sprinklers on a pipeline at a height of 4-4,5 m above the soil surface. The possibility of supplying fertilizer solutions only through a polyethylene pipeline and surface irrigation devices reduces the corrosion of the main components and parts of the machine, which ensures an increase in the reliability of operation and service life of the machine.