HYDRAULIC ENGINEERING STRUCTURE FOR WATER INTAKE FROM SPRING Russian patent published in 2016 - IPC E02B9/04 E03B3/00 

FIELD: construction.

SUBSTANCE: hydraulic engineering structure for water intake from a spring comprises a reservoir 1 installed in a water bearing bed 2 with a return filter 3 and a water intake opening 4. Around the reservoir 1 there is a hydraulic insulating layer 6 of required height. On top of the reservoir 1 there is a clay lock 5. The reservoir 1 comprises labyrinth partitions 16, 18. The end section of the reservoir 1 has a section made by a plenum chamber 7 with an outlet sill 9 with a horizontal shelf 19. The plenum chamber 7 comprises a broken external wall 8 with a vertical wall 9 of the reservoir 1. The bottom central part of the broken wall 8 in the chamber 7 is made by the hole 10 and includes a seat with a valve 11 on a hinge 12. An opening lever 13 is attached to the valve 11, to which a float 14 is fixed in its turn, suspended on a retaining flexible traction rod 15. A drain pipeline 20 is equipped with a control gate valve 21. The plenum chamber 7 is removed from the reservoir 1 and is limited by labyrinth L-shaped partitions 16, 18, overlapping of walls of which reduces bottom speeds upstream the chamber 7. A water stream, passing through labyrinth partitions 16, 18, changes direction of water movement, this creates favourable conditions to balance specific flow rates along the reservoir width. As a result, water level in the chamber is stabilised, wave process of water surface disappears. Such mode of spring water supply from the water bearing bed will make it possible to ensure continuous operation of the structure in automatic mode for intake of underground spring water.

EFFECT: increased efficiency and steadiness of distribution of specific flow rates along reservoir width and reduction of bottom speeds for production of cleaner water at the inlet to the plenum chamber, simplicity and reliability of the structure.

3 cl, 1 dwg