What is the correct usage of sprinkler irrigation?

1. If sprinkler irrigation equipment moves during sprinkler irrigation, such as rotating sprinkler, refracting sprinkler and 360-degree full circle sprinkler, etc. Check whether the nozzle outlet pipe is vertical and the fixing bracket is firm before use. If the outlet pipe is not vertical and rotates during irrigation, the reaction force will be unbalanced, the reliability of the sprinkler will be reduced, the uniformity of sprinkler irrigation will also be reduced, and the unbalanced reaction force may fall. If the fixing bracket is not fixed firmly, the sprinkler irrigation equipment is more likely to fall down.

2. Before starting the sprinkler irrigation equipment every time, ensure that the valves on the main pipeline and branch pipes are closed, and start the water pump in the closed state. When the pump reaches the rated speed, open the valves on the main pipe, main pipe and branch pipe in turn according to the water flow order. This is to start the pump at low load to avoid initial overload. Moreover, opening valves in turn can also reduce the pipeline vibration caused by water hammer, or install agricultural irrigation air valves to avoid it.

3. If there is a pressure detection instrument, the working pressure of each part of the sprinkler irrigation equipment should be detected at the initial stage of opening, and the pressure loss at the branch pipe should not exceed 20% of the maximum pressure of the branch pipe.

4. Also monitor the sprinkler irrigation effect of sprinkler irrigation equipment and observe the intensity of sprinkler irrigation. If surface runoff and accumulated water are formed, it means that the intensity of sprinkler irrigation is too high, and the working pressure should be reduced appropriately, or the sprinkler with smaller flow rate should be used instead.

5. The uniformity of sprinkler irrigation should meet the requirements, and the uniformity parameter should be greater than 0.8. If the uniformity is poor, it can be adjusted manually. For example, every certain irrigation cycle, it is necessary to move the position of the sprinkler to the middle of the first two sprinklers, and then adjust it again in the next cycle. It is faster and more effective without changing the depth adjustment. If there is time, the sprinkler system of sprinkler irrigation equipment should be recalculated and calibrated. It is necessary to decide whether to change the nozzle type, adjust the pipeline pressure or adjust the nozzle position according to the actual situation.

6. Sprinkler irrigation equipment should be irrigated in windy weather, and wind has a great influence on sprinkler irrigation. If it is necessary to irrigate in windy weather, the nozzle spacing can be appropriately reduced, or sprinkler irrigation can be carried out along the wind. If the wind reaches level 3 or above, it is suggested to stop sprinkler irrigation, which will cause the error of the coverage area of sprinkler irrigation equipment in windy weather. The greater the wind force, the greater the error, which will lead to uneven irrigation quantity in the irrigation area. In addition, there are

7. When the sprinkler irrigation equipment is running, pay attention to the fact that there are no objects such as wires and cables that are afraid of water within the coverage of sprinkler irrigation, so as to prevent electric leakage or object damage accidents.