WO2021052294A1 - 一种电动雾化器的雾化效率评价方法及装置 - Google Patents
一种电动雾化器的雾化效率评价方法及装置 Download PDFInfo
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- WO2021052294A1 WO2021052294A1 PCT/CN2020/115136 CN2020115136W WO2021052294A1 WO 2021052294 A1 WO2021052294 A1 WO 2021052294A1 CN 2020115136 W CN2020115136 W CN 2020115136W WO 2021052294 A1 WO2021052294 A1 WO 2021052294A1
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- atomization
- electric atomizer
- liquid medicine
- idling
- tested
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- 238000000889 atomisation Methods 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 239000003814 drug Substances 0.000 claims abstract description 69
- 238000012360 testing method Methods 0.000 claims abstract description 48
- 239000002245 particle Substances 0.000 claims description 18
- 238000004364 calculation method Methods 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 12
- 238000011156 evaluation Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims 1
- 238000011158 quantitative evaluation Methods 0.000 abstract description 4
- 238000012377 drug delivery Methods 0.000 abstract 3
- 229940079593 drug Drugs 0.000 abstract 2
- 238000011056 performance test Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 7
- 239000000575 pesticide Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0089—Regulating or controlling systems
- A01M7/0096—Testing of spray-patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/082—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to a condition of the discharged jet or spray, e.g. to jet shape, spray pattern or droplet size
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N2015/0023—Investigating dispersion of liquids
- G01N2015/0026—Investigating dispersion of liquids in gas, e.g. fog
Definitions
- This application relates to the field of agricultural technology, and in particular to a method and device for evaluating the atomization efficiency of an electric atomizer.
- the aerial spraying of agricultural aircraft has the advantages of fast flying speed, high spraying efficiency, and strong ability to respond to sudden disasters. It has received great attention in the field of agricultural plant protection. In recent years, agricultural aviation pesticide application technology has developed rapidly and has become more widely used.
- wind-driven atomizers are mostly used for spraying in large manned aircraft, such as the AU5000 product produced by British Micronair company.
- the atomizer has the advantages of a centrifugal atomizer such as simple structure and saving power and energy.
- the rotation of the atomizer driven by the aircraft in flight will cause greater wind resistance to the aircraft and increase the aircraft’s flight energy consumption. Increase the cost of aircraft flight fuel.
- the wind-driven atomizer is affected by the incoming wind speed, and the rotating speed of the atomizer's cage fluctuates with the fluctuation of the flight speed of the aircraft, which causes the degree of atomization to also change with the flight speed of the aircraft, and the uniformity of spray particle size is poor.
- electric atomizers for aerial spraying have appeared in recent years, such as the AU7000 product produced by British Micronair Company.
- the atomization efficiency of the electric atomizer is the proportional relationship between the power consumption of the atomizer and the atomization quality of the unit amount of the atomizer when the plane is flying. It represents the atomizer atomizing the unit liquid to a certain droplet size. , The degree of power consumed.
- the atomization efficiency of an electric atomizer is an important indicator of its working performance.
- the embodiments of the present application provide a method and device for evaluating the atomization efficiency of an electric atomizer.
- an embodiment of the present application provides a method for evaluating the atomization efficiency of an electric atomizer, including:
- the atomization efficiency of the electric atomizer to be tested is calculated.
- the atomization parameters include a first droplet diameter, a second droplet diameter, and a third droplet diameter, wherein the volume of the droplet with a diameter smaller than the first droplet diameter accounts for the volume of the atomized liquid medicine.
- the second preset ratio of the volume of the droplets with a diameter smaller than the diameter of the second droplet to the volume of the atomized liquid medicine, and the diameter represents the volume of the droplets with a diameter smaller than the diameter of the third droplet
- the third preset ratio accounts for the volume of the atomized liquid medicine.
- the calculation of the atomization efficiency of the electric atomizer under test according to the idling power consumption, the working power consumption and the atomization parameter specifically includes:
- the atomization efficiency of the electric atomizer to be tested is calculated.
- the atomization efficiency of the electric atomizer to be tested is calculated according to the first coefficient, the second coefficient and the atomization particle size span, and the specific calculation formula is as follows:
- ⁇ represents the atomization efficiency
- p represents the first coefficient
- d represents the second coefficient
- RS represents the atomization particle size span.
- the first coefficient is obtained according to the idling power consumption and the working power consumption, and the specific calculation formula is as follows:
- p represents the first coefficient
- P 1 represents the working power consumption
- P 0 represents the idling power consumption
- the second coefficient is obtained according to the second droplet diameter, and the specific calculation formula is as follows:
- d represents the second coefficient
- Dv0.5 1 represents the second droplet diameter
- the atomization particle size span of the electric atomizer to be tested is obtained, and the specific calculation formula is as follows :
- RS represents the atomizing particle size span
- Dv0.9 1 denotes a third droplet diameter
- Dv0.5 1 represents the second droplet diameter
- Dv0.1 1 represents the first droplet diameter .
- an embodiment of the present application provides an atomization efficiency evaluation device of an electric atomizer, which includes: a power source, an atomization measurement system, a liquid medicine supply module, and a processor, wherein: the power source and the electric atomizer to be tested
- the liquid medicine supply module is connected with the electric atomizer to be tested, and the processor is respectively connected in communication with the power supply, the atomization measurement system, and the liquid medicine supply module;
- the power supply is used to supply power to the electric atomizer to be tested
- the liquid medicine supply module is used to provide liquid medicine for the electric atomizer to be tested
- the atomization side metering system is used to measure the atomization parameters of the atomized liquid medicine, and the atomized liquid medicine is formed after the liquid medicine passes through the electric atomizer to be tested;
- the processor is used to obtain the idling voltage and idling current of the electric atomizer under test when idling, and obtain the working voltage and working current of the electric atomizer under test when atomizing the liquid medicine, and according to The method for evaluating the atomization efficiency of the electric atomizer provided in the first aspect calculates the atomization efficiency of the electric atomizer under test.
- the embodiment of the application proposes a method and device for evaluating the atomization efficiency of an electric atomizer, which realizes the quantitative evaluation of the atomization efficiency of the electric atomizer for aerial spraying during the application process, which is the work of the electric atomizer.
- Performance testing provides important indicators to make up for the technical gaps in the testing of existing aviation pesticide application equipment.
- FIG. 1 is a flowchart of a method for evaluating the atomization efficiency of an electric atomizer according to an embodiment of the application
- FIG. 2 is a schematic structural diagram of an atomization efficiency evaluation device of an electric atomizer provided by an embodiment of the application;
- FIG. 3 is an application scene diagram of an atomization efficiency evaluation device of an electric atomizer provided by an embodiment of the application.
- liquid medicine supply module 303, liquid medicine supply module; 304, processor;
- Fig. 1 is a flowchart of a method for evaluating the atomization efficiency of an electric atomizer according to an embodiment of the application. As shown in Fig. 1, the method includes:
- the idling here means that no liquid enters the electric atomizer to be tested.
- the idling voltage and the idling current are measured.
- the voltage and current when the rotating speed of the electric atomizer is measured at 2500 rpm are called idling voltage and idling current, respectively, and the idling power consumption of the electric atomizer under test is calculated based on the idling voltage and idling current.
- the embodiment of the application proposes a method for evaluating the atomization efficiency of an electric atomizer, which realizes the quantitative evaluation of the atomization efficiency of the electric atomizer for aerial spraying during the application process, which is a test of the working performance of the electric atomizer. Provide important indicators to fill in the technical gaps in the testing of existing aviation pesticide application equipment.
- the atomization parameter includes a first droplet diameter, a second droplet diameter, and a third droplet diameter, wherein the droplet volume whose diameter is smaller than the first droplet diameter
- the first predetermined ratio of the volume of the atomized liquid medicine, the volume of the droplets having a diameter smaller than the diameter of the second droplet accounts for the second predetermined ratio of the volume of the atomized liquid medicine, and the diameter indicates that the diameter is smaller than the first
- the volume of the droplets with three droplet diameters accounts for the third preset ratio of the volume of the atomized liquid medicine.
- the atomization parameters mentioned in the embodiments of the present application include the first droplet diameter Dv0.1 1 , the second droplet diameter Dv0.5 1 and the third droplet diameter Dv0.9 1 , the first droplet Diameter means that among all the droplets after atomization, the droplets with a diameter smaller than the diameter of the first droplet account for 10% of the volume of all droplets.
- the second droplet diameter means that among all the droplets after atomization, the diameter The droplets smaller than the second droplet diameter account for 50% of the volume proportion of all droplets.
- the third droplet diameter means that among all the droplets, droplets with a diameter smaller than the third droplet diameter account for 90% of the volume proportion of all droplets. %.
- the calculation of the atomization efficiency of the electric atomizer under test according to the idling power consumption power, the working power consumption power and the atomization parameter specifically includes :
- the atomization efficiency of the electric atomizer to be tested is calculated.
- the first coefficient is obtained.
- the specific calculation method is as follows:
- p represents the first coefficient
- P 1 represents the working power consumption
- P 0 represents the idling power consumption
- the atomization particle size span of the electric atomizer to be tested is obtained.
- RS represents the atomizing particle size span
- Dv0.9 1 denotes a third droplet diameter
- Dv0.5 1 represents the second droplet diameter
- Dv0.1 1 represents the first droplet diameter .
- d represents the second coefficient
- Dv0.5 1 represents the second droplet diameter
- ⁇ represents the atomization efficiency
- p represents the first coefficient
- d represents the second coefficient
- RS represents the atomization particle size span.
- FIG. 2 is a schematic structural diagram of an atomization efficiency evaluation device of an electric atomizer provided by an embodiment of the application. As shown in FIG. 2, the device includes:
- the power supply, the atomization measurement system, the liquid medicine supply module and the processor wherein: the power supply is connected to the electric atomizer to be tested, the liquid medicine supply module is connected to the electric atomizer to be tested, and the processor Respectively communicatively connected with the power supply, the atomization measurement system, and the liquid medicine supply module;
- the power supply is used to supply power to the electric atomizer to be tested
- the liquid medicine supply module is used to provide liquid medicine for the electric atomizer to be tested
- the atomization side metering system is used to measure the atomization parameters of the atomized liquid medicine, and the atomized liquid medicine is formed after the liquid medicine passes through the electric atomizer to be tested;
- the processor is used to obtain the idling voltage and idling current of the electric atomizer under test when idling, and obtain the working voltage and working current of the electric atomizer under test when atomizing the liquid medicine, and according to The atomization efficiency evaluation method of the electric atomizer described above calculates the atomization efficiency of the electric atomizer to be tested.
- the atomization efficiency evaluation device includes a power supply, an atomization measurement system, a liquid medicine supply module, and a processor.
- the electric atomizer to be tested is first powered by the power source.
- Idling in the embodiment of the present application, the idling voltage and idling current of the electric atomizer under test when the idling speed is 2500 rpm are measured. And send the idling voltage and idling current to the processor.
- the liquid medicine supply module supply power to the electric atomizer under test through the liquid medicine supply module, the electric atomizer under test atomizes the liquid medicine, and measure the working voltage of the electric atomizer under test at this time and Working current, and sending working voltage and working current to the processor.
- the characteristic of the liquid medicine supply module is that it can provide a continuous liquid medicine supply for the electric atomizer to be tested, and the flow rate of the liquid medicine supply can be set and kept stable.
- the atomization measurement system measures the atomization parameters of the liquid medicine after being atomized, and sends the atomization parameters to the processor.
- the processor and the power supply, the atomization measurement system, and the liquid medicine supply module may be electrically connected through wires or wireless communication.
- the specific data processing method is not specifically limited in this embodiment of the application.
- the processor After the processor receives the idling voltage, idling current, working voltage, working current and atomization parameters, it calculates the atomization efficiency of the electric atomizer under test according to the calculation method provided above.
- the specific calculation method can refer to the above method embodiment, and the device embodiment does not specifically limit it here.
- the embodiment of the application proposes a device for evaluating the atomization efficiency of an electric atomizer, which realizes the quantitative evaluation of the atomization efficiency of the electric atomizer for aerial spraying during the application process, which is a test of the working performance of the electric atomizer. Provide important indicators to fill in the technical gaps in the testing of existing aviation pesticide application equipment.
- FIG. 3 is an application scenario diagram of an atomization efficiency evaluation device of an electric atomizer provided by an embodiment of the application.
- a power source 301 supplies power to the electric atomizer 305 to be tested.
- Measure the power supply of the electric atomizer, and the electric atomizer under test is idling, and the idling voltage and idling current of the electric atomizer under test are measured when the idling speed is 2500 rpm.
- the liquid medicine supply module 303 provides liquid medicine to the electric atomizer under test, and measures the working voltage and working current of the electric atomizer under test when it is working.
- the electric atomizer under test atomizes the liquid medicine.
- the atomization measurement system 302 can then measure the atomization parameters after atomization, and the atomization parameters are the first droplet diameter, the second droplet diameter, and the third droplet diameter.
- the flow rate sensor 306 is installed between the electric atomizer to be tested and the liquid medicine supply module, the flow rate sensor can measure the flow speed of the liquid medicine.
- the processor 304 performs wireless communication with the power supply, the liquid medicine supply module, and the atomization measurement system, receives the idling voltage, idling current, working voltage, working current and atomization parameters, and calculates the electric fog to be measured based on the received information The atomization efficiency of the carburetor. At the same time, record the flow rate of the liquid medicine at this time.
- the flow rate-atomization efficiency curve of the electric atomizer under test can be obtained, that is, the electric atomizer under test.
- the atomization efficiency curve of the device By changing the flow rate of the liquid medicine and calculating the atomization efficiency of the electric atomizer under test at different flow rates, the flow rate-atomization efficiency curve of the electric atomizer under test can be obtained, that is, the electric atomizer under test.
- the atomization efficiency curve of the device By changing the flow rate of the liquid medicine and calculating the atomization efficiency of the electric atomizer under test at different flow rates, the flow rate-atomization efficiency curve of the electric atomizer under test can be obtained, that is, the electric atomizer under test.
- the atomization efficiency curve of the device By changing the flow rate of the liquid medicine and calculating the atomization efficiency of the electric atomizer under test at different flow rates, the flow rate-atomization efficiency curve of the electric atomizer under test can be obtained, that is, the electric atomizer under test.
- the device embodiments described above are merely illustrative.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in One location, or it can be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement the technical solutions described in this application without creative work.
- each implementation manner can be implemented by software plus a necessary general hardware platform, and of course, it can also be implemented by hardware.
- the embodiments of this application can be embodied in the form of a computer software product.
- the computer software product can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions to enable a computer device ( For example, a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiment.
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Abstract
Description
Claims (10)
- 一种电动雾化器的雾化效率评价方法,其特征在于,包括:根据待测电动雾化器空转时的空转电压和空转电流,获取空转功耗功率;根据药液流入所述待测电动雾化器时所述待测电动雾化器的工作电压和工作电流,获取工作功耗功率;获取所述待测电动雾化器对所述药液雾化后的雾化参数;根据所述空转功耗功率、所述工作功耗功率和所述雾化参数,计算所述待测电动雾化器的雾化效率。
- 根据权利要求1所述方法,其特征在于,所述雾化参数包括第一雾滴直径、第二雾滴直径和第三雾滴直径,其中,直径小于所述第一雾滴直径的雾滴体积占所述雾化药液体积的第一预设比例,直径小于所述第二雾滴直径的雾滴体积占所述雾化药液体积的第二预设比例,直径表示直径小于所述第三雾滴直径的雾滴体积占所述雾化药液体积的第三预设比例。
- 根据权利要求2所述方法,其特征在于,所述根据所述空转功耗功率、所述工作功耗功率和所述雾化参数,计算所述待测电动雾化器的雾化效率,具体包括:根据所述空转功耗功率和所述工作功耗功率,获取第一系数;根据所述第一雾滴直径、所述第二雾滴直径和所述第三雾滴直径,获取所述待测电动雾化器的雾化粒径跨度;根据所述第二雾滴直径,获取第二系数;根据所述第一系数、所述第二系数和所述雾化粒径跨度,计算所述待测电动雾化器的雾化效率。
- 根据权利要求3所述方法,其特征在于,所述根据所述第二雾滴直径,获取第二系数,具体计算公式如下:d=Dv0.5 1/250,其中,d表示所述第二系数,Dv0.5 1表示所述第二雾滴直径。
- 根据权利要求3所述方法,其特征在于,所述根据所述第一雾滴直径、所述第二雾滴直径和所述第三雾滴直径,获取所述待测电动雾化器的雾化粒径跨度,具体计算公式如下:RS=(Dv0.9 1-Dv0.1 1)/Dv0.5 1,其中,RS表示所述雾化粒径跨度,Dv0.9 1表示所述第三雾滴直径,Dv0.5 1表示所述第二雾滴直径,Dv0.1 1表示所述第一雾滴直径。
- 一种电动雾化器的雾化效率评价装置,其特征在于,包括:电源、雾化测量系统、药液供应模块和处理器,其中:所述电源与待测电动雾化器连接,所述药液供应模块与所述待测电动雾化器连接,所述处理器分别与所述电源、所述雾化测量系统、所述药液供应模块通信连接;所述电源用于为所述待测电动雾化器供电;所述药液供应模块用于为所述待测电动雾化器提供药液;所述雾化侧量系统用于测量雾化药液的雾化参数,所述雾化药液为所述药液经过所述待测电动雾化器后形成;所述处理器用于获取待测电动雾化器在空转时的空转电压和空转电流,并获取所述待测电动雾化器在对所述药液雾化时的工作电压和工作电流,并根据如权利要求1至7任一所述电动雾化器的雾化效率评价方法计算所述待测电动雾化器的雾化效率。
- 根据权利要求8所述装置,其特征在于,还包括:流速传感器,所述流速传感器位于所述药液供应模块和所述待测电动雾化器之间,所述流速传感器用于测量所述药液的流速。
- 根据权利要求9所述装置,其特征在于,所述装置还用于测量不 同药液流速下,所述待测电动雾化器的雾化效率,并获取所述待测电动雾化器的雾化效率曲线。
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AU2020350655A AU2020350655B2 (en) | 2019-09-18 | 2020-09-14 | Method and apparatus for evaluating atomization efficiency of electric atomizer |
US17/296,482 US20220026329A1 (en) | 2019-09-18 | 2020-09-14 | Method and device for evaluating atomization efficiency of electric atomizer |
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CN110702365B (zh) * | 2019-10-30 | 2021-08-03 | 北京农业智能装备技术研究中心 | 雾化效率评价系统及方法 |
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