METHOD FOR FLUSHING OF FREE-FLOW IRRIGATION PIPELINES Russian patent published in 2008 - IPC A01G25/06 B08B9/32 

FIELD: agriculture, in particular, process which may be used in operation of irrigation systems.

SUBSTANCE: method involves feeding increased amount of water from water source into head part of pipeline to be flushed; providing circulation of water using pump connected through suction branch pipe to end shutter of irrigation pipeline and through discharge branch pipe to its head part; cutting off pump and providing hydraulic shocks within pipeline under flushing process at 3-5 min intervals, with alternating processes of water feeding under pressure and hydraulic shocking lasting during 20-30 min; controlling process effectiveness by state of end water outlets; upon removal of silt therefrom, cutting off irrigation pipeline from head part of pipeline under flushing process and discharging water containing suspended silt particles using pump providing high speed transportation of suspension. Utilizing discharged water for irrigation of lower lands. Method allows deposited slit particles to be removed from water outlets and be further utilized for enrichment of soil with organic substances contained in slit and washed out from water outlets.

EFFECT: enhanced reliability in operation of free-flow irrigation pipelines and avoiding ineffective consumption of water.

1 dwg