Air supply system for plant protection spraying machine droplet drifting test
A test-use, wind-driven technology, applied to mechanical equipment, components of pumping devices for elastic fluids, machines/engines, etc., can solve the problem that the controllability of the simulated wind field needs to be strengthened, the operation is cumbersome, and the error of the drift test results And other issues
Inactive Publication Date: 2019-06-28
JIANGSU UNIV
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However, the controllability of the patent for the simulated wind field needs to be strengthened
[0006] With the increasing development of plant protection machinery, the above-mentioned generators for simulating the environmental wind field have shortcomings such as cumbersome operation, heavy workload, and inability to simulate the actual environmental wind field, which eventually leads to large errors in the results of the drift test and the inability to obtain fog droplets. Drift rules, so that it is impossible to provide efficient guidance for actual production operations
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[0027]The technical solution and system structure of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention:
[0028] The AC motors on both sides of the lower cross-flow fan respectively drive the impeller of the upper cross-flow fan and the impeller of the lower cross-flow fan to rotate through the pulley mechanism, thereby generating high-speed airflow at the air outlets of the upper and lower cross-flow fans, and the high-speed airflow passes through the flexible connecting pipe, The diffusion pipe and the square air duct flow to the outlet of the air delivery system. The system adjusts the speed of the AC motor through the frequency converter, and then changes the speed of the impeller of the upper cross-flow fan and the impeller of the lower cross-flow fan, thereby adjusting the high-speed airflow velocity at the outlet of the air delivery system.
[0029] An embodiment of ...
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The invention discloses an air supply system for a plant protection spraying machine droplet drifting test. The air supply system is composed of a cross-flow fan, a diffusion pipe, a honeycomb device,a damping net, a horizontal flow guide plate, alternating-current motors, a frequency converter, a belt wheel mechanism and the like. The cross-flow fan comprises an upper cross-flow fan and a lowercross-flow fan, the alternating-current motors on the two sides of the lower cross-flow fan drive an upper cross-flow fan impeller and a lower cross-flow fan impeller to rotate through the belt wheelmechanism correspondingly, and thus, high-speed airflow is generated at air outlets of the upper cross-flow fan and the lower cross-flow fan and flows towards an outlet of the air supply system through a flexible connection pipe, the diffusion pipe and a square air duct. According to the air supply system, the rotation speed of the alternating-current motors is adjusted through the frequency converter, accordingly, the rotation speed of the upper cross-flow fan and the rotation speed of the lower cross-flow fan are changed, and the flow rate of the high-speed airflow of the outlet of the air supply system is adjusted. The uniform high-speed airflow is generated through the air supply system, and the uniform environment wind filed condition can be provided for the plant protection sprayingmachine droplet drifting test.
Description
technical field [0001] The invention belongs to the technical field of plant protection spraying machinery, and specifically relates to an air delivery system for fog droplet drift test of spraying machinery. That is, the invention provides an air delivery system that simulates actual field operating conditions and can accurately control operating parameters of wind speed and wind direction. Effectively avoid the influence of external conditions on test repeatability. Background technique [0002] my country is a large country with a population of 1.3 billion, and it is also a large agricultural country. Food has always been the guarantee for the country's long-term stability and people's happy life. Agriculture is the foundation of a country, and our country has gradually increased its emphasis on the development of agriculture. The development of agriculture is naturally inseparable from plant protection operations. Plant protection has always been an important link in ag...
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IPC IPC(8): F04D25/08F04D25/16F04D27/00F04D29/44F04D29/66
Inventor 贾卫东曹胜男欧鸣雄臧帅周慧涛
Owner JIANGSU UNIV