FIELD: agricultural amelioration, in particular, equipment for drop irrigation of perennial plantation on compound relief, of vegetable and berry crops in open ground.
SUBSTANCE: drop irrigation apparatus has casing with inlet and outlet openings. Casing is fixed on pipeline wall by means of annular channel dividing casing into upper and lower parts. Upper part of casing is positioned within pipeline. Inlet opening provided in upper part of casing is connected through channel with chamber. Casing is made in the form of double-convex disk. Outlet opening provided in lower part of casing is connected with chamber through additional channel. Main channel in upper part of casing and additional channel in lower part of casing are formed spiral - right-handed circle involute in lower part and left-handed involute in upper part of circle.
EFFECT: trouble-free operation of apparatus during the whole irrigation season, and simplified unwinding and winding of drop irrigation apparatus onto drum upon termination of irrigation season.
2 cl, 2 dwg
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Authors
Dates
2007-05-10—Published
2005-11-08—Filed