VACUUM DRAINAGE SYSTEM Russian patent published in 2014 - IPC E02B11/00 

FIELD: agriculture.

SUBSTANCE: system comprises a feeding drain line 1, a collecting container 2 connected to an inspection pit 3 by the pipe 4, and a vertical overflow wall 5 with an opening 6. The vertical overflow wall 5 is fastened to the bottom 7 and rigidly embedded in the side walls of the pit 3. The overflow wall 5 is provided with a horizontal shelf 8 directed towards the pipe 4. The inspection pit 3 is communicated with a chamber 9 which has a broken inner wall 10 with an opening for the inlet pipe 12. The lower central part of the broken wall 10 between the chamber 9 and the pit 3 is made as an opening 13 and comprises a seat with a valve 14 on the hinge 15 and the float drive. The chamber 9 is hydraulically connected by the siphon 22 and the vertical pipe 23 to the outlet drain line 24. The siphon 22 is separated from the float drive by the cantilever partition 20 and has a charging tube 25. The relationship in the operation of the inspection pit, the chamber with the float drive, the siphon and other construction elements enables to increase the reliability and accuracy in the work of the construction.

EFFECT: efficient periodic washing from suspended sediments of the construction and the drain line to the source of the collector.

3 cl, 1 dwg