Sprinkler System: How to Handle Wind Speed and Direction During Operation
2021-02-18
From the perspective of irrigation science research, Sprinkler machine Is it suitable for irrigation in windy conditions? If you proceed with irrigation, what measures will you take? Let’s discuss this topic.
1. Wind speed and wind speed.
Let me explain and analyze the relationship between wind speed and wind force for everyone. I still recall a science class from my school days—back then, China also had some informal methods for making decisions.
II. The Harm Caused by Wind to Sprinkler Equipment.
At Sprinkler machine Throughout the entire process of sprinkler irrigation, since the water droplets only fall when they reach a certain height above the ground, observing wind during their movement is highly detrimental. Wind significantly alters the effective range, which in turn affects both the total area covered by irrigation and the distribution of water applied. ( Symmetry of sprinkler irrigation systems ) The higher the nozzle pressure, the greater the atomization—and the more pronounced the associated hazards. ( The atomization index value is typically determined by nozzle pressure, excluding nozzle diameter. )
Three 、 Drifting and volatilization cause damage.
Because the water droplets sprayed are small, when gas and air humidity are low and wind speeds are high, some of the droplets are blown out of the irrigation area or evaporate instantly in mid-air, eventually landing on roads and causing airborne evaporation and drift that lead to environmental damage.
Many farmers are indifferent to the damage caused by this change, but they wonder: what if you used a sprinkler to apply fertilizer instead? Sprinkler machine How about spraying pesticides? When temperatures are high and winds are strong, both granular and spray fertilizers tend to get damaged—fertilizer particles can easily be blown away by the wind, reducing their effectiveness and preventing you from achieving the desired results. Moreover, as the wind spreads outward, fertilizer application can quickly lead to air pollution. Under normal conditions, when wind speeds exceed 4 When the wind reaches level 3 (moderate breeze), spraying insecticides should be stopped.
4. By reducing nozzle drift, minimize drift damage.
According to international experience, in windless conditions, the installation height of bottom-pressure nozzles should be measured from the road surface. 1.5 From rice to 2.1 Meters. As wind speed increases, irrigation efficiency drops sharply. Relevant scientific research indicates that when wind speed reaches 6.5 m/s to 8.6 m/s At that time, water injection efficiency decreases.
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