DRAIN WELL-ABSORBER FOR RECEIVING AND DISCHARGE OF SURFACE WATER Russian patent published in 2016 - IPC E02B11/00 

FIELD: treatment plant.

SUBSTANCE: invention relates to devices for receiving and cleaning surface water from suspended matter, and discharge of clarified water, and can be applied in non-chernozem zone agriculture during heavy mineral soil drainage, for surface water removal, and dewatering of closed depressions, as well as erosion-free surface run-off arrangement on catena soil. Surface of closed drainless depression is inclined towards device not less than at 0.005, and catchment area is not less than 3.0 ha, but not greater than value of erosion dangerous area. Absorber drain well is placed in closed depression of drainage area and includes housing 1 with cover 2 and water intake holes 4, of increasing against water flow cross sections, made in its upper part on side surface, drainage system 3 with protective device 8 ahead of it against floating suspensions, and settling tank 13 in lower part of housing 1 with bottom lower than water disposal system 3. For acceleration of gravity drainage water from soil, adjacent to well, casing 1 of well below closed depression level at depth of its freezing, on some part of external side surface is wrapped with slope by drain plastic perforated pipe 9 with protective filter material, plug in head, and filled with sand-gravel mix 10, by principle of reverse filter. Water discharge into well from pipe 9 occurs via hole 11 in wall 5 of housing, under which detachable perforated plate 12 is mounted, damping energy of water falling into well from cantilever weir pipes with reverse inclination not less than 45° and decreasing cross-section diameter, not exceeding wall 5 thickness of well housing 1, in form of which water inlet holes 4 realised. Well cover 2 has U-shape section along its symmetry axis with diameter larger than well outer diameter. Cover 2 is equipped with retainer 6 of its position upon well and is black-coloured. Well settler bottom is located not less than 40 cm lower than water disposal system 3.

EFFECT: technical result consists in improvement of efficiency of well-absorber and its operating reliability, lower costs, prolonged service life without repair, higher crop capacity, and reduction of capital investments payback life.

5 cl, 1 dwg