| 摘要 |
FIELD: reclamation.SUBSTANCE: invention can be used for automatic control and stabilization of ground waters, primarily for drainage systems. Mouth of drain manifold with evacuation comprises drains 1, header 2, storage pit 3, drain tube 4 connected with pressure receiving branch pipe 5, which is connected to descending branch 6 of siphon 7. Air inlet device in ridge of siphon block 7 additionally comprises drive lever 10 with load 14 and with shutoff element 11 in form of valve. One end of driving lever 10 pivoted to wall of well 3, and other is bent to be articulated with lower rod 12 of float 13. Float 13 via rod 16 is articulated to lever 17 and through levers 17, 23 and rod 24 is with cones 21 and 22 two valve shut-off element arranged in housing 19 to make air inlet device. Ridge of siphon 7 is also equipped with hole 8, which is connected by means of charging pipeline 9 with pressure receiving branch pipe 5. Reliable operation in transient modes depending on position of water level in well is provided due to presence of air inlet device made in form of housing interconnected with flange and provided with two valve shutoff member, calculated from condition of closing and opening drain tube through kinematic connection of float and hinge-lever drive.EFFECT: high accuracy of operation by maintaining specified difference between water levels in manifold and siphon, higher reliability, as well as smooth inlet of required air volume into ridge of siphon.2 cl, 1 dwg |
