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

FIELD: agriculture.

SUBSTANCE: invention relates to the field of land reclamation and can be used for draining soils in heavy-textured soils, as well as in regulation of the water level in upper pools of bulkhead structures in irrigation and drainage-humidification channels. The system comprises an inlet 1 and an outlet 28 drains, a storage container 2 and a chamber 3 connected by the pipe 4. The chamber 3 is placed in an inspection manhole 5, in which a siphon is mounted. A float 18 is placed in an additional chamber 20 and is provided with a load 19 with a variable mass. The system comprises a three-port articulation linkage, the first port 8 of which is pivotally connected to the first horizontal axis of rotation 7. A shutter 6 is connected to the axis of rotation 7 with the ability of rotation and fixing the shutter in the end positions by means of clamps on the output head of the chamber 3 which is connected to the inlet pipe. The second port is made in the form of a rod 9 mounted on the second horizontal axis of rotation 11 and connected to a lever 10. The lever 10 is pivotally connected to a rod 12 rigidly connected to the float 18. The rod 9 by a lever 13 with a slider 14 is connected to a rack 15, on which a limiter 16 is secured using a retaining screw 17. In the bottom of the additional chamber 20 there is an inlet 23 with the located valve 24 connected to a float sensor 25. The inspection manhole 5 is equipped with a siphon made in the form of a vertically mounted cylindrical nozzle 29 connected to the outlet 28 drain, and a cap 30 located above it. The combination of the articulation linkage with the floating drive mounted on the wall of the chamber (well) with control elements enables to avoid imbalances by moving the shutter 6 on the axis 7, and the operation of the siphon also enables to adjust automatically water discharge to the outlet drain with the stable flow rate.

EFFECT: system is reliable and stable in operation, it has continuous monitoring of the water level and eliminates an emergency.

3 cl, 2 dwg