DRAINAGE WELL Russian patent published in 2017 - IPC E02B11/00 

FIELD: construction.

SUBSTANCE: device comprises a cylindrical body 1 equipped with a cover 2. In the well 1, there are an inlet 3 and an outlet 4 manifolds. In the cover 2, an opening 5 is made, in which a vent pipe 6 is installed; the pipe top is equipped with a telescopic cone deflector 7 with a lock 8. Inside the vent pipe 6, a riser 9 is fixed, made in the form of a vertical tube connected to radial horizontal tubes 10. The tubes 10 are passed through the tube 6 wall and have an oblique cut 11 on the outside. The inlet tubes 10 are equipped with air flow regulators 12. The riser 9 in the upper part is plugged, and its lower part is located below the end of the vent pipe 6. The above-ground inner part of the pipe 6 is made closed by a shutter 13, on the axis of which a counterweight 14 is rigidly fixed. Outside the well 1 area, with respect to the position of the inlet 3 manifold in the well housing, the manifold 3 is equipped with a chamber 15 connected to the manifold 3 by means of a branch pipe 16. The chamber 15 is equipped with a float 17, kinematically connected to the cable and pulley system 18 with a lever fixed to the rotation axis of the shutter 13 installed in the cavity of the vent pipe 6. The chamber 15 has a water-receiving part 19 installed below the groundwater level and having a hydraulic connection to the inlet 3 manifold by means of the branch pipe 16.

EFFECT: use of the invention will make it possible to increase the reliability and to automate the process of regulating the efficiency increase of the convective warm air intake into the well, and will accelerate the drainage water removal, when it is freed from an ice plug.

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