FIELD: construction.
SUBSTANCE: invention relates to hydrotechnical construction and can be used for removal of deposits on water intake facilities with intake from lower layers of water for agricultural water supply. Water intake comprises rainwater perforated tubes 10, laid into a layer of filtering surface, protective shield made from laid in a row with clearance rods 1, connected to lower side of hollow pipes 2. Hollow pipes 2 are made on upper generatrix of pipe with air outlet holes between free sections of each rod 1. Inside hollow pipes 2 are fixed on bottom additional pipes 4 with clearance. Additional pipes 4 are made from soft elastic material with micropores. Additional pipes 4 are pneumatically communicated via air duct 5 with tap 6, cavity of which is connected with compressor 7 of compressed air fed via air duct 5 into additional pipes 4. Compressor 7 is connected with time relay 8. End sections of hollow pipes 2 have washing calibrated holes 9, and end sections of additional pipes 4 are plugged.
EFFECT: higher efficiency, reliability and reduced operating costs.
4 cl, 4 dwg
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