CN112595539B - Agricultural liquid medicine high-voltage electrostatic spraying test bed - Google Patents
Agricultural liquid medicine high-voltage electrostatic spraying test bed Download PDFInfo
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- CN112595539B CN112595539B CN202011645703.1A CN202011645703A CN112595539B CN 112595539 B CN112595539 B CN 112595539B CN 202011645703 A CN202011645703 A CN 202011645703A CN 112595539 B CN112595539 B CN 112595539B
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Abstract
An agricultural liquid medicine high-voltage electrostatic spraying test bed belongs to scientific research test equipment; the device comprises a high-voltage electrostatic spraying system consisting of a superfine crushing high-voltage electrostatic spray head, a plunger pump, a liquid medicine box, a pressure regulating valve, a pressure gauge, an electromagnetic valve, a voltmeter, an ammeter, a high-voltage electrostatic generator, a direct-current power supply, a liquid medicine pipeline and a lead, a water receiving box assembly consisting of a height-adjustable box body, gauze and a drainage valve, a target traversing system consisting of a target test piece, a horizontal bracket, a traversing guide rail, a rack, a gear, a stepping motor, a slide block, a butterfly nut and a screw, and an indoor air dehumidifying system consisting of a dehumidifying fan, an automatic controller and a humidity sensor; the agricultural crop spraying device has the advantages of truly simulating the real-time change condition of the relative position between the agricultural crop spraying device and crops, novel and reasonable structure, accurate and reliable test data, good consistency with actual operation environment and conditions, wide application range and strong applicability.
Description
Technical Field
The invention belongs to scientific research test equipment, and mainly relates to an agricultural liquid medicine high-voltage electrostatic spraying test bed.
Background
The spraying device is widely applied to the agricultural liquid medicine spraying technology, in order to continuously improve the quality and the spraying effect of spraying operation, the agricultural liquid medicine spraying needs to be completed repeatedly in a laboratory through a spraying test device to simulate the actual spraying environment, process and conditions in scientific research tests and design, and on the premise of obtaining various technical parameters for evaluating the performance of the spraying device, support is provided for the design of the agricultural liquid medicine spraying device. At present, spraying test beds in China, including normal-pressure and high-voltage electrostatic test beds, are developed and applied, and play a positive role in ensuring and improving the design quality and level of spraying equipment. However, due to the defects and shortcomings in structural design, the existing test bed has a large difference in the true accuracy and the applicability for simulating the actual pesticide liquid spraying operation environment and the operation condition, and causes deviation to the measurement result, influences and reduces the test accuracy.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and designs an agricultural liquid medicine high-voltage electrostatic spraying test bed by combining the actual requirements of agricultural liquid medicine spraying operation tests and accurately simulating the real environment and different changes of operation states of agricultural liquid medicine atomizing spraying, so that the aims of accurate test data detection, strong adaptability, wide application range, high automation degree and simple and convenient adjustment operation are fulfilled.
The purpose of the invention is realized by the following steps: the agricultural liquid medicine high-voltage electrostatic spraying test bed comprises a high-voltage electrostatic spraying system and a water receiving tank assembly; the structure of the high-voltage electrostatic spraying system is as follows: the liquid medicine box is communicated with the superfine crushing high-voltage electrostatic sprayer through a liquid medicine pipeline, a plunger pump, a pressure regulating valve, a pressure gauge and an electromagnetic valve are sequentially connected on the liquid medicine pipeline in series, a direct-current power supply is communicated with the high-voltage electrostatic generator through a lead A, and the high-voltage electrostatic generator is communicated with the superfine crushing high-voltage electrostatic sprayer through an ammeter and a voltmeter through a lead B; the water receiving tank assembly comprises a height-adjustable tank body, gauze and a drainage valve, wherein the gauze cover is laid on the upper end part of the height-adjustable tank body, and the drainage valve is assembled on the lower part of the side of the height-adjustable tank body; the height-adjustable box body is positioned below the superfine crushing high-voltage electrostatic spray head; a transverse moving guide rail and a rack are fixedly arranged at the side part of the water receiving box assembly in parallel, a sliding block is arranged on the transverse moving guide rail in a transverse moving mode, a stepping motor fixedly provided with a gear is arranged on the sliding block, the gear is meshed with the rack, a transverse moving support is arranged on the sliding block in a vertical direction, a horizontal mounting bracket capable of being adjusted in an up-and-down moving mode is arranged on the transverse moving support, an assembling target test piece is detachably and fixedly arranged on the horizontal mounting bracket through the matching of a butterfly nut and a screw, and the target test piece is positioned between the lower part of the superfine crushing high-voltage electrostatic sprayer and the upper part of the height-adjustable box body; a dehumidifying fan and a humidity sensor are arranged in a laboratory space, and an automatic controller connected with an external power supply is respectively communicated with the dehumidifying fan, the humidity sensor, a stepping motor and an electromagnetic valve through leads.
The invention truly and accurately simulates the real-time continuous change (including high and low positions, front and back and near positions) of the position between the superfine crushing high-voltage electrostatic spray head and the target test piece (namely crop leaves or stems and the like) in actual spraying operation in a farmland and the authenticity of a natural environment (air humidity), and has the characteristics of novel and reasonable structure, accurate and reliable test data, accordance with actual operation environment and conditions, strong adaptability, wide application range, simple and convenient operation and high automation degree.
Drawings
FIG. 1 is a schematic view of the overall structure of an agricultural liquid medicine high-voltage electrostatic spraying test bed;
FIG. 2 is a schematic view of an assembly structure of a target specimen and a horizontal bracket;
fig. 3 is a top view of fig. 2.
Description of part numbers in the figures:
1. the device comprises a high-voltage electrostatic spraying system, 1-1 parts of superfine crushing high-voltage electrostatic spray heads, 1-2 parts of plunger pumps, 1-3 parts of liquid medicine boxes, 1-4 parts of pressure regulating valves, 1-5 parts of pressure gauges, 1-6 parts of electromagnetic valves, 1-7 parts of voltmeters, 1-8 parts of ammeters, 1-9 parts of high-voltage electrostatic generators, 1-10 parts of direct-current power supplies, 1-11 parts of liquid medicine pipelines, 1-12 parts of conducting wires A, 1-13 parts of conducting wires B, 2 parts of water receiving box assemblies, 2-1 parts of height-adjustable box bodies, 2-2 parts of gauze, 2-3 parts of drainage valves, 3 parts of test piece targets, 4 parts of moisture-removing fans, 5 parts of automatic controllers, 6 parts of humidity sensors, 7 parts of horizontal brackets, 8 parts of horizontal brackets, 9 parts of guide rails, 10 parts of racks, 11 parts of gears, 12 parts of stepping motors, 13 parts of sliders, 14 parts of butterfly nuts, 15 parts of screws.
Detailed Description
Embodiments of the present invention are described in detail below with reference to the accompanying drawings. An agricultural liquid medicine high-voltage electrostatic spraying test bed comprises a high-voltage electrostatic spraying system 1 and a water receiving tank assembly 2; the structure of the high-voltage electrostatic spraying system 1 is as follows: the liquid medicine box 1-3 is communicated with the superfine crushing high-voltage electrostatic sprayer 1-1 through a liquid medicine pipeline 1-11, a plunger pump 1-2, a pressure regulating valve 1-4, a pressure gauge 1-5 and an electromagnetic valve 1-6 are sequentially connected and mounted on the liquid medicine pipeline 1-11 in series, a direct current power supply 1-10 is communicated with a high-voltage electrostatic generator 1-9 through a lead A1-12, and a high-voltage electrostatic generator 1-9 is communicated with the superfine crushing high-voltage electrostatic sprayer 1-1 through an ammeter 1-8 and a voltmeter 1-7 sequentially through a lead B1-13; the water receiving tank assembly 2 comprises a height-adjustable tank body 2-1, gauze 2-2 and a drainage valve 2-3, wherein the gauze 2-2 covers the upper end part of the height-adjustable tank body 2-1, and the drainage valve 2-3 is assembled at the lower part of the side of the height-adjustable tank body 2-1; the height-adjustable box body 2-1 is positioned below the superfine crushing high-voltage electrostatic spray head 1-1; a transverse moving guide rail 9 and a rack 10 are fixedly arranged at the side part of the water receiving box assembly 2 in parallel, a sliding block 13 is transversely movably arranged on the transverse moving guide rail 9, a stepping motor 12 fixedly provided with a gear 11 is arranged on the sliding block 13, the gear 11 is meshed with the rack 10, a transverse moving support 8 is vertically arranged on the sliding block 13, a horizontal bracket 7 is arranged on the transverse moving support 8 and can be adjusted up and down, a target test piece 3 is detachably and fixedly arranged on the horizontal bracket 7 through the matching of a butterfly nut 14 and a screw 15, and the target test piece 3 is positioned between the lower part of the superfine crushing high-voltage electrostatic spray head 1-1 and the upper part of the height-adjustable box body 2-1; a dehumidifying fan 4 and a humidity sensor 6 are arranged in a laboratory space, and an automatic controller 5 connected with an external power supply is respectively communicated with the dehumidifying fan 4, the humidity sensor 6, a stepping motor 12 and electromagnetic valves 1-6 through leads.
When the agricultural liquid medicine fog drops with negative charges generated by the high-voltage electrostatic spraying system 1 are sprayed out of the superfine crushing high-voltage electrostatic spray head 1-1, at the moment, the gear 11 driven to rotate by the rotating power of the stepping motor 12 is meshed with the rack 10 to drive the sliding block 13, the transverse moving support 8, the horizontal bracket 7 and the target test piece 3 to move transversely on the transverse moving guide rail 9, and when the target test piece 3 passes through the position between the lower part of the superfine crushing high-voltage electrostatic spray head 1-1 and the upper part of the water receiving tank assembly 2, the agricultural liquid medicine fog drops with negative charges sprayed out of the superfine crushing high-voltage electrostatic spray head 1-1 are adsorbed on the front surface, the back surface and the hidden parts of the target test piece 3 with positive charges. The whole operation process simulates the operation scene that the spray head moves in the field and the crops move relative to the field in a static state. After the test of one process is finished, the butterfly nut 14 is loosened, the target test piece 3 can be quickly replaced from the horizontal bracket 7, and the quality and the effect of the attached fog drops on the front surface, the back surface and the hidden part of the detached target test piece 3 are detected and recorded. Judging the fog drop mass ratio under different spray pressure and electrostatic voltage conditions, and optimizing and selecting the spray pressure and electrostatic voltage parameter indexes suitable for the superfine grinding high-voltage electrostatic spray head 1-1 while evaluating the spray quality of the superfine grinding high-voltage electrostatic spray head 1-1; on the contrary, the superfine crushing high-voltage electrostatic spray head 1-1 can be optimally designed after the spray pressure and the electrostatic voltage are determined.
In the high-voltage electrostatic spraying system, the spraying pressure of the superfine crushing high-voltage electrostatic nozzle 1-1 in the spraying system can be changed through the pressure regulating valve 1-4, so that the change of different droplet sizes is realized. The electrostatic voltage of an electrode ring arranged in the superfine high-voltage electrostatic sprayer 1-1 can be changed through the high-voltage electrostatic generator 1-9, and the adjustment and change of different electrostatic voltages of the fog drops are realized.
The stepping motor 12 can control the reciprocating transverse moving speed of the target test piece 3, and the test adaptability is enlarged.
The height-adjustable box body 2-1 of the water receiving box assembly 2 can adjust the height distance between the gauze 2-2 on the height-adjustable box body 2-1 and the target test piece 3 according to the test requirement, so that falling fog drops are effectively adsorbed, the fog drops are prevented from being attached to the target test piece 3 after being refracted and scattered, the test result is prevented from being influenced, and the test precision is reduced.
When the humidity in the laboratory environment is higher than a rated humidity value (namely a field environment humidity value), the humidity sensor 6 sends an electric signal to the automatic controller 5 for recognition and processing, then the dehumidifying fan 4 is started to perform indoor air dehumidifying operation, at the moment, the power supply of the stepping motor 12 and the electromagnetic valves 1-6 is synchronously cut off, the stepping motor 12 stops rotating, and the electromagnetic valves 1-6 are closed; and when the indoor air humidity of the laboratory meets the rated humidity value, the normal operation is recovered.
Claims (1)
1. An agricultural liquid medicine high-voltage electrostatic spraying test bed comprises a high-voltage electrostatic spraying system (1) and a water receiving tank assembly (2); the high-voltage electrostatic spraying system (1) is structurally characterized in that: the liquid medicine box (1-3) is communicated with the superfine crushing high-voltage electrostatic sprayer (1-1) through a liquid medicine pipeline (1-11), a plunger pump (1-2), a pressure regulating valve (1-4), a pressure gauge (1-5) and an electromagnetic valve (1-6) are sequentially connected and mounted on the liquid medicine pipeline (1-11) in series, a direct current power supply (1-10) is communicated with the high-voltage electrostatic generator (1-9) through a lead A (1-12), and a high-voltage electrostatic generator (1-9) is communicated with the superfine crushing high-voltage electrostatic sprayer (1-1) through a lead B (1-13) sequentially passing through an ammeter (1-8) and a voltmeter (1-7); the water receiving tank assembly (2) comprises a height-adjustable tank body (2-1), gauze (2-2) and a drainage valve (2-3), wherein a cover of the gauze (2-2) is laid on the upper end part of the height-adjustable tank body (2-1), and the drainage valve (2-3) is assembled on the lateral lower part of the height-adjustable tank body (2-1); the height-adjustable box body (2-1) is positioned below the superfine crushing high-voltage electrostatic spray head (1-1); the method is characterized in that: a transverse moving guide rail (9) and a rack (10) are fixedly arranged at the side part of the water receiving box assembly (2) in parallel, a sliding block (13) is transversely movably arranged on the transverse moving guide rail (9), a stepping motor (12) fixedly provided with a gear (11) is arranged on the sliding block (13), the gear (11) is meshed with the rack (10), a transverse moving support (8) is vertically arranged on the sliding block (13), a horizontal mounting bracket (7) which can be adjusted in an up-and-down mode is arranged on the transverse moving support (8), a mounting target test piece (3) which is detachably and fixedly arranged on the horizontal bracket (7) through the matching of a butterfly nut (14) and a screw (15) is arranged, and the test piece target test piece (3) is positioned between the lower part of a broken high-voltage electrostatic spray head (1-1) and the upper part of a height-adjustable box body (2-1); a dehumidifying fan (4) and a humidity sensor (6) are arranged in a laboratory space, and an automatic controller (5) connected with an external power supply is respectively communicated with the dehumidifying fan (4), the humidity sensor (6), a stepping motor (12) and electromagnetic valves (1-6) through leads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011645703.1A CN112595539B (en) | 2020-12-31 | 2020-12-31 | Agricultural liquid medicine high-voltage electrostatic spraying test bed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011645703.1A CN112595539B (en) | 2020-12-31 | 2020-12-31 | Agricultural liquid medicine high-voltage electrostatic spraying test bed |
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| CN112595539A CN112595539A (en) | 2021-04-02 |
| CN112595539B true CN112595539B (en) | 2022-10-28 |
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| CN113978759B (en) * | 2021-11-04 | 2024-04-09 | 江苏大学 | Unmanned aerial vehicle static spray test platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2681411B2 (en) * | 1990-08-10 | 1997-11-26 | 三共 株式会社 | Automatic sprayer for chemical solution for plant test cultivation |
| CN201673062U (en) * | 2010-05-14 | 2010-12-15 | 黑龙江省农业机械工程科学研究院 | Mist spray property comprehensive test stand |
| CN104604831B (en) * | 2015-01-16 | 2017-02-22 | 南京林业大学 | Adjustable rotor wing spray bar type electrostatic spraying device |
| CN105806753B (en) * | 2016-03-07 | 2018-10-19 | 农业部南京农业机械化研究所 | A kind of dispenser equipment field mist droplet deposition distributed simulation test system and test method |
| WO2018019083A1 (en) * | 2016-07-26 | 2018-02-01 | 淄博奥业机电技术有限公司 | Guide rail-type intelligent pesticide atomizing and spraying device |
| CN109975623B (en) * | 2019-03-15 | 2020-12-18 | 江苏大学 | Electrostatic atomization nozzle charge-to-mass ratio measuring system and measuring method thereof |
| CN211043042U (en) * | 2019-11-28 | 2020-07-17 | 河南农业大学 | Gantry crane type plant protection unmanned aerial vehicle fog drop test bench |
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