APPARATUS FOR APPLICATION OF CHEMICAL MEANS WITH IRRIGATION WATER IN DISCRETE IRRIGATION SYSTEMS Russian patent published in 2007 - IPC A01C23/04 A01G25/02 

FIELD: mechanization of agriculture, in particular, multiple-purpose utilization of discrete irrigation systems for application into soil of chemical solutions with irrigation water.

SUBSTANCE: apparatus has open reservoir for chemical solution, said reservoir being positioned at the level of irrigation water accumulator and equipped with closed measuring and auxiliary vessels positioned slightly lower than reservoir and slightly higher than the level at which irrigation pipelines are joined to receiver-collector. Measuring vessel is communicated through hydraulic channels to reservoir for chemical solution, to upper part of receiver-collector and through auxiliary vessel to lower part of receiver-collector. Lower part of auxiliary vessel cavity is connected to receiver-collector, and upper part to upper part of measuring vessel cavity through J-shaped communication channel, whose knee portion is arranged higher than maximum level of chemical solution in said reservoir. Lower part of measuring vessel cavity is connected with upper part of receiver-collector through J-shaped communication channel, whose knee portion is positioned higher than maximum level of chemical solution in reservoir. There is calibrated opening in upper branch of communication channel, at the side of receiver-collector, said opening being arranged lower than the level of knee portion. Upper part of measuring vessel cavity is communicated through J-shaped communication channel with lower part of reservoir for chemical solution. End of communication channel is positioned within measuring vessel for axial displacement. Length of short run of J-shaped communication channel is greater than length of longer run of J-shaped communication channel. Volume of auxiliary vessel is smaller than volume of measuring vessel, but said volume is much greater than total volume of hydraulic communication channels.

EFFECT: increased efficiency in utilizing of chemicals due to dosed feeding thereof with irrigation water for each accumulation-irrigation cycle of discrete irrigation system, and provision for alternating usage of various kinds of soluble chemicals for short time interval by volumetric regulation of doses.

6 cl, 3 dwg