HYDRAULIC ENGINEERING STRUCTURE FOR SIPHONIC DRAINAGE OF UNDERGROUND SPRING WATER Russian patent published in 2016 - IPC E02B11/00 E03B3/00 

FIELD: construction.

SUBSTANCE: hydraulic engineering structure comprises a reservoir 2 installed in a water bearing bed 1 with a bottom filter 3, having a filling 4, and a water level 6 indicator 5, a pump 7 with a suction hose 8 for pumping of underground water, a reservoir 9 for collection and consumption of spring water communicated with the suction hose 8 of the pump 7, and a piping system. Besides, it additionally comprises a siphon 11, which communicates the first 2 and second 10 reservoirs. The siphon 11 elbow is made not above the upper wall of the first reservoir 2, corresponding to critical filling of spring water. In the highest point of the siphon 11 at the inner side there is a check valve 12 with an air tube 13, passing via a hole in the cover 14 of the reservoir 2. The check valve 12 creates pulse motion of water in the structure. The second reservoir 10 is equipped with a facility in the form of a drain pipe 15, providing for free flow of underground water into a natural water reservoir. The inlet cap 16 of the drain pipe 15 is equipped with a canopy 17. The suction hose 8 of the pump 7 is placed in the second reservoir 10. Reservoirs 2 and 10 are placed in serial order and are equipped with a hydraulic insulating layer 21 of required height.

EFFECT: simplicity and reliability of the structure, automatic washing of bottom filter surface, placed in the first reservoir, and production of clean water at the same time, use of the invention reduces manual labour intensive costs for cleaning of the filter and reservoirs against settled residue for various chemical compounds available in underground spring water.

2 cl, 1 dwg