A controllable droplet atomization device for manned and unmanned plant protection application

Abstract

The present invention relates to a controllable droplet atomization device for manned aerial plant protection application, comprising a power module, a controller, a centrifugal atomization unit, a liquid pump, a flow sensor, and a medicine box. One side of the controller is connected to the power module, one side of the controller is connected to the centrifugal atomization unit, the lower side of the controller is connected to the liquid pump, the liquid pump is connected to the medicine box through a liquid inlet pipeline, the liquid pump is connected to the centrifugal atomization unit through a liquid outlet pipeline, and the liquid outlet pipeline is provided with a flow sensor. The present invention can realize the controllable operation of pesticide droplets in the process of aerial application, change the droplet particle size according to the operation requirements and application parameters, increase the droplet deposition efficiency, reduce drift, and improve the utilization rate of pesticides.

Description

Technical Field

[0001] The patent of this invention relates to the technical field of pesticide application, and in particular to a controllable droplet atomization device for human-machine pesticide application for plant protection. Background Art

[0002] At present, when manned aircraft are used for aerial plant protection operations, most of the nozzles used for spraying pesticides are hydraulic atomizing nozzles. The droplet size produced by the nozzle atomization cannot be adjusted, so it cannot be changed according to different meteorological conditions, control objects, and characteristics of the liquid medicine. This causes serious droplet drift, low droplet adhesion rate on the target, and difficulty in achieving optimal particle size atomization operations. Therefore, it is of great significance to study a controllable droplet atomization device that can adjust the droplet size. Summary of the invention

[0003] The main purpose of the present invention is to overcome the problem that the droplet particle size of existing manned aerial plant protection operations is not easy to adjust, and to provide a controllable droplet atomization device for manned aerial plant protection application. The technical problem to be solved is that the spray flow rate can be adjusted and controlled, and the system operation status can be monitored, thereby improving the quality of manned aerial plant protection application, improving the utilization rate of pesticides, and reducing pesticide losses and pollution to the environment.

[0004] The purpose of the present invention and the technical problem to be solved are achieved by adopting the following technical scheme. According to the present invention, a controllable droplet atomization device for human-machine crop protection application includes a power module, a controller, a centrifugal atomization unit, a liquid pump, a flow sensor, and a medicine box. One side of the controller is provided with a positive power input electrode and a negative power input electrode, and the positive power input electrode and the negative power input electrode are connected to the power module through a wire. The other side of the controller is provided with a positive power supply electrode of the centrifugal atomization unit and a negative power supply electrode of the centrifugal atomization unit, and the positive power supply electrode of the centrifugal atomization unit and the negative power supply electrode of the centrifugal atomization unit are connected to the centrifugal atomization unit through a centrifugal atomization unit bus. The lower end of the controller is provided with a liquid pump power positive electrode, a liquid pump power negative electrode and a flow sensor terminal. The liquid pump power positive electrode and the liquid pump power negative electrode are connected to the liquid pump through a liquid pump power line. One end of the liquid pump is connected to the medicine box through a liquid inlet pipeline, and the other end of the liquid pump is connected to the centrifugal atomization unit through a liquid outlet pipeline. A flow sensor is provided on the liquid outlet pipeline, and the flow sensor is connected back to the flow sensor terminal of the controller through a flow sensor bus; the controller panel is provided with a display screen, a power status indicator light, a flow status indicator light, a centrifugal atomization disk speed status indicator light, a power switch, a liquid pump adjustment knob, and a centrifugal atomization disk speed adjustment knob;

[0005] The centrifugal atomization unit is composed of a motor driver, a motor, a centrifugal atomization disk, and a speed sensor. The motor driver is connected to the controller through a centrifugal atomization unit bus, and a speed sensor is installed on the motor driver. The motor is fixed on a motor seat connected to the motor driver. The motor driver supplies power to the motor. The centrifugal atomization disk is fixed on the central axis of the motor. The centrifugal atomization disk is connected to a liquid outlet pipeline, and the motor drives the centrifugal atomization disk to rotate.

[0006] Furthermore, the number of the centrifugal atomization units may be multiple.

[0007] Furthermore, the liquid output of the liquid pump can be adjusted by a controller, and the spray flow value of the flow sensor is displayed in real time on a display screen of the controller.

[0008] Furthermore, the flow sensor is provided with a real-time value and a set value of the spray flow, and when the deviation between the real-time value and the set value exceeds a set range, the controller automatically alarms.

[0009] Furthermore, the rotation speed of the centrifugal atomizing disk can be adjusted by a controller, and the rotation speed sensor is used to monitor the rotation speed of the centrifugal atomizing disk.

[0010] Furthermore, the speed sensor is provided with a set speed value of the centrifugal atomizing disk. After comparing the speed of the centrifugal atomizing disk measured by the speed sensor with the set speed value, the driving force is adjusted through the motor driver to keep the speed of the centrifugal atomizing disk at the set speed.

[0011] Furthermore, when the centrifugal atomizing disk rotates abnormally, the controller automatically alarms.

[0012] By means of the above technical solution, the present invention has at least the following advantages:

[0013] 1. The invention adopts the centrifugal atomization mechanism to atomize the liquid medicine. Since the droplet size of centrifugal atomization is affected by two main factors, namely the spray volume and the rotation speed of the centrifugal atomization disk, the invention realizes that the spray volume and the rotation speed of the centrifugal atomization disk are adjustable and controllable, that is, the purpose of adjusting the droplet size can be achieved.

[0014] 2. A flow sensor is installed on the liquid pump outlet pipeline. The flow value measured by the flow sensor can be displayed in real time on the controller's display screen, and the allowable error range of the flow can be set. When the deviation between the real-time flow and the set flow exceeds the allowable error range, the controller alarms.

[0015] 3. The speed of the centrifugal atomizer disk can be set through the controller, and a speed sensor is installed in the centrifugal atomization unit. The speed of the centrifugal atomizer disk measured by the speed sensor is compared with the set speed value. The driving force is adjusted by the motor driver to keep the speed of the centrifugal atomizer disk at the set speed, avoiding the centrifugal atomizer disk speed deviation from the set value due to changes in motor rotation resistance or other factors, which fails to achieve the purpose of accurately controlling the droplet particle size.

[0016] 4. During operation, the speed sensor of the centrifugal atomization unit monitors the speed of the centrifugal atomization disk. When the speed of the centrifugal atomization disk exceeds the set offset error range, the controller alarms.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the controller of the present invention.

[0019] Figure 2 Schematic diagram of the centrifugal atomization unit of the present invention.

[0020] Figure 3 It is a schematic diagram of the overall structure of the present invention.

[0021] Description of the figure numbers: 1-power module; 2-controller; 3-centrifugal atomization unit bus; 4-liquid pump power cord; 5-flow sensor bus; 6-liquid pump; 7-liquid inlet pipeline; 8-liquid outlet pipeline; 9-flow sensor; 10-medicine box; 11-centrifugal atomization unit; 12-power input positive pole; 13-power input negative pole; 14-display screen; 15-centrifugal atomization unit power positive pole; 16-centrifugal atomization unit power negative pole; 17-power status indicator light; 18-power switch; 19-liquid pump adjustment knob; 20-centrifugal atomization disk speed adjustment knob; 21-flow status indicator light; 22-centrifugal atomization disk speed status indicator light; 23-liquid pump power positive pole; 24-liquid pump power negative pole; 25-flow sensor end; 26-motor driver; 27-motor; 28-centrifugal atomization disk; 29-speed sensor. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0023] like Figure 1 , Figure 2 , Figure 3 As shown, Figure 1It is a schematic diagram of the controller in the present invention; Figure 2 Schematic diagram of the centrifugal atomization unit in the present invention; Figure 3 Schematic diagram of the overall structure of the present invention; this embodiment is a controllable droplet atomization device for applying pesticides to manned aircraft, including a power module 1, the input end of the power module 1 is connected to the power output of the aircraft avionics system, the function of the power module 1 is to adjust the output voltage of the aircraft avionics system to the voltage value required by the present invention, the positive and negative poles of the output end of the power module 1 are connected to the positive power input pole 12 and the negative power input pole 13 of the controller 2 through wires; the centrifugal atomization unit power positive pole 15 and the centrifugal atomization unit power negative pole 16 of the controller 2 are connected through centrifugal atomization The unit bus 3 is connected to a plurality of centrifugal atomization units 11 to provide power to the centrifugal atomization units 11; the positive electrode 23 and the negative electrode 24 of the liquid pump power supply of the controller 2 are connected to the liquid pump 6 through the liquid pump power supply line 4 to provide power to the liquid pump 6; the voltage value between the positive electrode 23 and the negative electrode 24 of the liquid pump power supply of the controller 2 can be adjusted by rotating the liquid pump adjustment knob 19, thereby adjusting the discharge amount of the liquid pump 6, the liquid inlet pipeline 7 of the liquid pump 6 is connected to the medicine box 10, the liquid outlet pipeline 8 of the liquid pump 6 is connected to the centrifugal atomization unit 11, and a flow sensor is installed on the liquid outlet pipeline 8 9, the flow sensor 9 is connected to the controller 2 through the flow sensor bus 5, and the real-time flow value of the liquid outlet pipeline 8 measured by the flow sensor 9 is displayed on the display screen 14 of the controller 2; the centrifugal atomization unit 11 is connected to the controller 2 through the centrifugal atomization unit bus 3, and the controller 2 supplies power to the motor driver 26; the motor 27 is fixed on the motor seat connected to the motor driver 26, the centrifugal atomization disk 28 is fixed on the central axis of the motor 27, and the motor 27 drives the centrifugal atomization disk 28 to rotate, the offline atomization unit 11 is connected to the liquid pump 6 through the liquid outlet pipeline 8, and the medicine box 10 The medicine liquid continuously enters the liquid pump 6, and the offline atomization unit 11 atomizes the medicine liquid into droplets through the centrifugal atomization principle. A speed sensor 29 is installed on the motor driver 26 to test the rotation speed of the centrifugal atomization disk 28 and feed back the speed value to the controller 2. The rotation speed of the centrifugal atomization disk 28 can be set by rotating the centrifugal atomization disk speed adjustment knob 20. The controller 2 compares the real-time speed fed back by the speed sensor 29 with the set speed value, and automatically adjusts the drive signal of the motor driver 26 to drive the motor 27, so that the centrifugal atomization disk 28 is at a constant preset speed.

[0024] The working process of the centrifugal atomizing nozzle of the present invention is as follows: the power module 1 is connected to the power output end of the aircraft avionics system, the output end of the power module 1 is connected to the controller 2, the controller 2 is connected to the liquid pump 6 through the liquid pump power line 4, one end of the liquid inlet pipeline 7 is connected to the liquid pump 6, and the other end of the liquid inlet pipeline 7 is connected to the medicine box 10, the controller 2 is connected to the flow sensor 9 through the flow sensor bus 5, the controller 2 is connected to the centrifugal atomization unit bus 3, a certain number of centrifugal atomization units 11 are connected to the centrifugal atomization unit bus 3 according to the manned-machine structure and operation requirements, and the liquid outlet pipeline 8 is connected to the centrifugal atomization unit 11. Before the operation, the flow rate of the liquid pump 6 is calculated according to the operation requirements, the optimal droplet particle size range is determined, and the speed of the centrifugal atomization disk 28 is determined according to the pre-experimental data. Turn on the power switch 18 of the controller 2, the device first self-checks, and the power status indicator 17 lights up green after the self-check passes, otherwise the red light is on. Rotate the liquid pump adjustment knob 19 to activate the liquid pump 6 to start working, and adjust the liquid pump 6 to the preset flow value according to the real-time flow value displayed on the display screen 14. During operation, when the deviation between the real-time flow value detected by the flow sensor 9 and the set flow value exceeds a certain range, the flow status indicator 21 will light up red, and if it works normally, it will light up green. Rotate the centrifugal atomizer disk speed adjustment knob 20 of the controller 2 to make the speed of the centrifugal atomizer disk 28 reach the preset value. During operation, when the real-time speed value detected by the speed sensor 29 and the set speed value deviate beyond a certain range, the centrifugal atomizer disk speed status indicator 22 will light up red, and if it works normally, it will light up green. When the device can operate normally, the device adjustment is completed. At this time, the power switch 18 can be turned off directly. When the aircraft officially performs the aerial plant protection operation task, 5 seconds before arriving at the operating area to start spraying, turn on the power switch 18. After the device self-checks, the whole set of devices starts to work. At this time, the droplet size produced by atomization is the required optimal droplet size range. If the droplet size needs to be changed, it needs to be readjusted according to the above steps.

[0025] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the above disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention, which does not depart from the content of the technical solution of the present invention, still falls within the scope of the technical solution of the present invention.

Claims

1. A controllable droplet atomization device for human-machine crop protection, characterized in that: It comprises a power module (1), a controller (2), a centrifugal atomization unit (11), a liquid pump (6), a flow sensor (9), and a medicine box (10). A power input positive electrode (12) and a power input negative electrode (13) are provided on one side of the controller (2), and the power input positive electrode (12) and the power input negative electrode (13) are connected to a power module (1) via a wire; A centrifugal atomization unit power positive electrode (15) and a centrifugal atomization unit power negative electrode (16) are provided on the other side of the controller (2); the centrifugal atomization unit power positive electrode (15) and the centrifugal atomization unit power negative electrode (16) are connected to the centrifugal atomization unit (11) via a centrifugal atomization unit bus (3); The controller (2) is provided with a liquid pump power positive electrode (23), a liquid pump power negative electrode (24) and a flow sensor terminal (25) at the lower end. The liquid pump power positive electrode (23) and the liquid pump power negative electrode (24) are connected to a liquid pump (6) via a liquid pump power line (4). One end of the liquid pump (6) is connected to a medicine box (10) via a liquid inlet pipeline (7). The other end of the liquid pump (6) is connected to a centrifugal atomization unit (11) via a liquid outlet pipeline (8). A flow sensor (9) is provided on the liquid outlet pipeline (8). The flow sensor (9) is connected back to the flow sensor terminal (25) of the controller (2) via a flow sensor bus (5). The controller (2) is provided with a display screen (14), a power status indicator light (17), a flow status indicator light (21), a centrifugal atomizing disk speed status indicator light (22), a power switch (18), a liquid pump adjustment knob (19), and a centrifugal atomizing disk speed adjustment knob (20) on a panel; The centrifugal atomization unit (11) is composed of a motor driver (26), a motor (27), a centrifugal atomization disk (28), and a rotation speed sensor (29); the motor driver (26) is connected to the controller (2) via a centrifugal atomization unit bus (3); the motor driver (26) is provided with a rotation speed sensor (29); the motor (27) is fixed on a motor seat connected to the motor driver (26); the motor driver (26) supplies power to the motor (27); the centrifugal atomization disk (28) is fixed on a central axis of the motor (27); the centrifugal atomization disk (28) is connected to a liquid outlet pipeline (8); and the motor (27) drives the centrifugal atomization disk (28) to rotate; The liquid output of the liquid pump (6) is adjusted by the controller (2), and the spray flow value of the flow sensor (9) is displayed in real time on the display screen (14) of the controller (2); The flow sensor (9) is provided with a real-time value and a set value of the spray flow rate. If the deviation between the real-time value and the set value exceeds a set range, the controller (2) automatically alarms; The rotation speed of the centrifugal atomizing disk (28) is adjusted by a controller (2), and the rotation speed sensor (29) is used to monitor the rotation speed of the centrifugal atomizing disk (28); The rotation speed sensor (29) is provided with a set rotation speed value of the centrifugal atomizing disk (28); after the rotation speed of the centrifugal atomizing disk (28) measured by the rotation speed sensor (29) is compared with the set rotation speed value, the driving force is adjusted through the motor driver (26) so that the rotation speed of the centrifugal atomizing disk (28) is maintained at the set rotation speed; When the centrifugal atomizing disk (28) rotates abnormally, the controller (2) automatically sounds an alarm; The centrifugal atomization units (11) are provided in plurality.

Images