DRAIN PRESSURE DROP WELL Russian patent published in 2016 - IPC E02B11/00 E03F5/04 E03F11/00 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, to devices intended for increasing quality of cleaning water in a closed manifold drain system and can be used for drying soil by closed drainage and use thereof and operation of drainage systems. Drain pressure drop well includes cylindrical housing 1 with cover 2 arranged with difference inlet 3, 4, 5 and outlet 6 pipes of closed collectors and settling tank. Settling tank is divided by vertical plate 9 with holes 10 in its lower part and height greater than height of outlet pipe 6 of closed collector in wall of well from bottom of settling tank, into two sections 7 and 8 so that section 7 of settling tank acts as stilling basin receiving water from inlet pipes 3, 4, 5, and section 8 directly of settling tank. Each inlet well pipe 3, 4, 5 of closed collector is equipped with guide pipe 13, fitted by one end at outlet of inlet well pipe 3, 4, 5. Other end of guide pipe 13 is U-shaped and is located in section stilling basin 7.

EFFECT: technical result is improved reliability and longevity of action not lower than standard service life of closed collector below well.

1 cl, 2 dwg