COMBINED IRRIGATION SYSTEM Russian patent published in 2019 - IPC E02B11/00 

FIELD: hydraulic structures.

SUBSTANCE: invention relates to hydraulic reclamation, mainly to land drainage in agriculture with automatic regulation of groundwater levels. System consists of a combined drainage and humidification manifold, to which drainage collectors are connected via a water intake well. Water intake wells in the drainage and humidification manifold are equipped with double-acting level controls. Regulator of the manifold mouth consists of well 2, divided by partition 3 into two tanks 4 and 5. Control membrane chamber 6 in tank 4 is located in the lower part of housing 7 of chamber 6 and is rigidly connected to rod 8 with controlled valves 9 and 10. Valves 9 and 10 are fixed on rod 8 and are located in the working medium, for example in water. Valves 9 and 10 inside housing 7 are placed with the possibility of vertical movement between saddle 11 with fixed screen 12 in the form of a plate, which is installed coaxially with inlet pipe 13. Rod 8 passes through flow damper 14, having windows 15. Axial guides 16 are flow dampers. Housing 7 is fixed at the bottom of tank 4 of well 2. Elbow-shaped pipe 17 is connected to the second tank 5. Upper end of rod 8 in its upper part has a power mechanism in the form of tension spring 18. Tension spring 18 is connected to the adjusting tension of the spring, screw 19 with limiter 20 fixed to floor slab 21. Second tank 5 contains float level sensor 25, which is connected to rod 26. Discharge pipe 29 with valve 28 closable with rod 26 is connected to float 25, and float chamber is triggered when the maximum water level reaches fixed float 25 on rod 26. As a result, discharge pipe 29 is opened by valve 28.

EFFECT: use of the invention will ensure the maintenance of an optimal balance of moisture in the soil.

1 cl, 1 dwg