FIELD: amelioration, irrigation and drainage of arable lands. SUBSTANCE: drainage system includes drains, collector with sealed accumulating reservoir, bellows and air valve. Bellows is placed so that its knee is located at mark corresponding to critical depth of lying of underground waters for soil-climatic and hydrogeological conditions of areas of location of system. EFFECT: simplified design and improved functional reliability of drainage system. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRAINAGE SYSTEM | 2014 |
|
RU2557186C1 |
| VACUUM DRAINAGE SYSTEM | 2015 |
|
RU2584993C1 |
| VACUUM DRAINAGE SYSTEM | 2016 |
|
RU2609383C1 |
| DRYING SYSTEM | 2015 |
|
RU2584414C1 |
| VACUUM DRAINAGE SYSTEM | 1999 |
|
RU2203998C2 |
| LAND RECLAMATION SYSTEM | 2015 |
|
RU2608052C2 |
| DRYING SYSTEM | 2014 |
|
RU2579182C1 |
| DRAINAGE DEVICE | 2021 |
|
RU2770486C1 |
| DRAINAGE RUNOFF REGULATOR | 2017 |
|
RU2636319C1 |
| DRAINAGE SYSTEM | 2015 |
|
RU2609388C1 |
