US 12,442,146 B2
Method and device for controlling the water level in ground
Sam Speijers, Middelaar (NL)
Assigned to ALTOP PATENTS II B.V., Beek (NL)
Appl. No. 17/594,083
Filed by ALTOP PATENTS II B.V., Beek (NL)
PCT Filed Apr. 1, 2020, PCT No. PCT/EP2020/059223
§ 371(c)(1), (2) Date Oct. 1, 2021,
PCT Pub. No. WO2020/201335, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2022856 (NL), filed on Apr. 3, 2019.
Prior Publication US 2022/0341102 A1, Oct. 27, 2022
Int. Cl. E01C 13/02 (2006.01); B01D 29/11 (2006.01); B01D 29/60 (2006.01); B01D 29/66 (2006.01); B01D 35/02 (2006.01); C02F 1/00 (2023.01)
CPC E01C 13/02 (2013.01) [B01D 29/11 (2013.01); B01D 29/605 (2013.01); B01D 29/606 (2013.01); B01D 29/661 (2013.01); B01D 35/02 (2013.01); C02F 1/001 (2013.01); C02F 1/008 (2013.01); C02F 2209/03 (2013.01); C02F 2209/42 (2013.01); C02F 2301/063 (2013.01); C02F 2301/066 (2013.01); C02F 2303/16 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A device for controlling a water level in ground in which drainage pipes have been laid, the device comprising:
a controllable water pump having a suction side connectable to a water reservoir and a pressure side connectable to drainage pipes in the ground;
an additional controllable pump which is connectable to the drainage pipes configured to extract water and/or air from or pressing water and/or air into the drainage pipes;
a programmable control system which is connected to each one of the controllable water pump and the additional controllable pump, the control system being configured to determine points in time, durations, volumes and/or order of the water supply to the drainage pipes and of the generation of an underpressure or overpressure of water or air in the drainage pipes;
a buffer vessel connected to the drainage pipes, and the controllable water pump and the additional controllable pump are connected to said buffer vessel; and
water level sensors and air pressure sensors provided in the buffer vessel and connected to the control system, the control system configured to control the controllable water pump and the additional controllable pump and influence the pressure condition in the buffer vessel based on the water level sensors and/or the air pressure sensors.