PARAMETERS OF THE CLOSED IRRIGATION NETWORK AND DESIGN OF THE CONNECTION UNIT OF THE SPRINKLER MACHINE «ÑASÑADE 65T»

Abstract

The article considers the justification of the parameters of the closed irrigation network and the design features of the connection unit of the Cascade 65T sprinkler machine. The pipeline of the closed irrigation network of the sprinkler machine must ensure the transportation of the required volume of water with minimal pressure losses. The supply pipeline of the closed irrigation network must have the following minimum parameters: for machines up to 506 m long and with a fl ow rate from 33 to 64.4 l/s, the supply pipeline of the closed irrigation network must be made of a pipe of at least Ø225 × 8.6 mm PE100 SDR26 PN6. For machines up to 315 m long and with a flow rate of up to 33 l/s, the supply pipeline of a closed irrigation network can be made of a pipe of at least Ø180 × 6.9 mm PE100 SDR26 PN6. To connect the sprinkler machine to the hydrant of a closed irrigation network, a controlled electric valve Du200, a coarse water filter and a pressure regulator are required. The filter capacity should be at least 250 m3/h, and the diameter of the holes of the filter mesh should be less than or equal to 3.0 mm. The pressure regulator must provide pressure adjustment in the range from 0.21 to 0.45 MPa. It is installed after the filter, before entering the machine. It is recommended to use specialized filters for cleaning irrigation water P65-3-10- Du200, P76-3-10- Dy200. Filter P65-3-10-The DU200 has height adjustment and is included in the delivery package of the Cascade 65T sprinkler machine. It is recommended to use Nelson 800 Series 6` or 8` gearboxes as control valves.