VACUUM DRAINAGE SYSTEM Russian patent published in 2017 - IPC E02B11/00 

FIELD: agriculture.

SUBSTANCE: invention relates to reclamation and can be used both for irrigation and drainage of agricultural land. The vacuum drainage system comprises drains 1, a collection manifold 2, in the mouth of which the storage tank 3 with a siphon 4 are placed. The siphon 4 contains a loading pipe 5 and an air vertical tube 6. In the storage tank 3 the cylindrical chamber 7 with a float 8 is rigidly fixed in the area of placement of the incoming siphon branch 4. The cylindrical chamber 7 has a water intake part 9 mounted below the siphon mouth 4. In the cylinder chamber 7 a float 8 is placed, which is kinematically connected with a cable-block system 10 with a lever 11 attached to the horizontal axis of rotation of the valve 12 mounted in the vertical air tube 6. On the axis of the valve 12 a counterweight load 13 is attached with a variable mass. The cable-block system 10 comprises hinges 14 and 15 fixed to the levers 16 and 17.

EFFECT: invention increases efficiency of work and reduces the risk of raising the ground water and the development of secondary salinization.

2 cl, 1 dwg