DRYING AND HUMIDIFYING SYSTEM IN THE CONDITIONS OF THE NORTH-EASTERN PART OF THE REPUBLIC OF BELARUS Russian patent published in 2023 - IPC E02B11/00 

FIELD: agriculture.

SUBSTANCE: invention can be used for irrigation of irrigated areas due to the accumulation of local runoff and drainage from the irrigated area. The accumulated water can be used for irrigation during the dry season, as well as for other economic purposes. The drainage and humidification system comprises a drainage network associated with a drainage conduit and storage pond 15. The drainage network flows into drainage collectors-channels 8 and pipes at the border of the fields. Channels or pipes have a slope to header 13 with mobile pumping station 14. Pumping station 14 pumps drainage water into storage pond 15. The bottom of storage pond 15 is made with a slope to discharge pipeline 17. Drainage pond 15 also includes discharge pipe 18 with valve 19 and pumping station 21, which is located at the base of storage pond 15, connected to pressure pipeline 22 connected to the irrigation network with regulation structures. Storage pond 15 of the drainage runoff is equipped with a protective screen made of two sheets of material. The lower screen made of a waterproofing polymer geomembrane, at least 1 mm thick, is additionally connected to the upper screen made of a waterproof geotextile material made of propylene fiber. Both screens around the perimeter are tightly sealed from the ends and interconnected by fixing them with a thin strip in the form of a crate using fasteners. The ends are connected to winches installed on opposite banks of the pond. Both screens connected to each other, forming a hollow cavity inside, are divided into two parts, interconnected by a container fixed on cables and consisting of a rigid frame, on which a container made of mesh with 1.0-1.5 mm cells is mounted. The floats for attaching the cable from the side of the lower part of the screen are provided with support platforms, configured for successive changes in their height above the surface of the float with an increase in height from the container frame to the bank. The screens are also divided into packs of modules, the cavities of which are filled with compressed air from the compressor by fixing polyethylene perforated pressure light tubes 10-12 mm inside the cavities of the packs of modules, the ends of which are plugged. The protective screen filled with air forms a convex surface of the upper part of the screen made of a geotextile waterproof material with a positive slope towards the drain of the container fixed on the cables.

EFFECT: increased reliability of the screen operation by filling its entire cavity with compressed air, which is supplied to the packs of modules separated from each other, the ability to quickly wash away debris and dust from its surface with rain, taking into account the slope of the screen, created by fixing it on the support platforms, the height of which is successively increased from the middle of the pond, where the mesh container is located, reducing the loss of water for evaporation from the surface of the drainage pond.

7 cl, 6 dwg