| 摘要 |
FIELD: agriculture, in particular, circle sprinkler units. SUBSTANCE: sprinkling machine has stationary support 1 with rotary knee 2, pipeline 3 with twin sprinkler units 4 and 5, self-propelled carts 6 with hydraulic drives 7 and stopcock 8 for setting advancement speed of machine. Stopcock is mounted on terminating cart 6. Multiple-channel device 9 mounted on stationary support 1 is adapted to imitate profile of area to be irrigated along perimeter of motion of carts 6. Device 9 is connected through feelers 10 with actuating valves 11, which are communicated via hydraulic channels 12 with pipelines 3 of machine and via hydraulic channels 13 - with diaphragm-type valves 14. Lock valves 15 carrying diaphragm-type valves 14 are mounted in fittings below sprinkler units 4 at predetermined spans of pipeline 3. Number of channels of annular device 9 corresponds to the number of spans (carts) of sprinkling machine. Pressure regulator 16 positioned in front of stationary support 1 may be set for predetermined mode of operation (predetermined water flow rate along pipeline). EFFECT: increased efficiency by providing predetermined water flow rate along pipeline and in separate spans of pipeline, depending on specific conditions. 2 cl, 1 dwg |
