Filtering Intake With Screen Filter of Filtering Panels for Drip Irrigation Systems Intake

Abstract

Purpose: development of the filtering water intake design of water intake purification facilities intended for preliminary treatment and water supply to drip irrigation systems. Materials and Methods. The disadvantage of the known designs of filtering water intake structures is their clogging with suspensions in the water withdrawn from water sources. To eliminate this drawback in the design of water intakes equipped with filtering panels, it is proposed to use a device that protects the filter elements from contamination by covering their surface with a mesh cloth. Results. The proposed device provides for installing and moving screen filter over the surface of the filtering panels, removing it from water, cleaning or replacing it. The removal of the screen filter or perforated fabric from the canal up the slope is carried out by a lifting mechanism with the winding of the fabric onto the drum. Moving the fabric overlapping the filtering panels down the slope is carried out using a ballast rod equipped with a pair of wheels when the screen is released by the winding mechanism. The screen is cleaned from the pollutants accumulated on it above the water surface in the canal by a washing device, which provides for the use of water jets supplied to the lower surface of the web under pressure. The design allows the replacement of a clogged or damaged screen. Conclusions: the proposed design of the filtering intake with a device protecting the filtering panels from debris drawn by the water flow onto their surface increases the reliability of the filtering water intake for water withdrawal from the canal and its preliminary treatment from contaminants before delivering it into the water conduits of the drip irrigation system.