CN208847447U - Droplet generating device based on high-speed imaging technology - Google Patents
Droplet generating device based on high-speed imaging technology Download PDFInfo
- Publication number
- CN208847447U CN208847447U CN201821750562.8U CN201821750562U CN208847447U CN 208847447 U CN208847447 U CN 208847447U CN 201821750562 U CN201821750562 U CN 201821750562U CN 208847447 U CN208847447 U CN 208847447U
- Authority
- CN
- China
- Prior art keywords
- droplet
- speed imaging
- spray head
- mist
- plant protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to agricultural plant protection technical fields, and in particular to a kind of droplet generating device based on high-speed imaging technology, including droplet generating mechanism and electric-control system change by electric-control system and record the motion state of droplet；Droplet generating mechanism includes plant protection spray head, droplet sampling slot and rotation test platform, and droplet sampling slot can be gone up and down between plant protection spray head, rotation test platform；Several filter mist through-holes are provided on droplet sampling slot, part droplet passes through filter mist through-hole and falls to test specimen upper surface；Electric-control system includes electric cabinet and data processing terminal equipment, high speed imaging unit built in electric cabinet and hydraulic pressure control unit, the input terminal of the high speed imaging unit is connect with video camera, the output end of high speed imaging unit is electrically connected with data processing terminal equipment, the hydraulic pressure control unit is electrically connected with diaphragm pump, droplet size and stroke speed can flexibly be changed using the utility model, realize that drop as few as possible hits the surface of solids, it can more clearly records photographing motion process.
Description
Technical field
The utility model relates to agricultural plant protection technical fields, and in particular to a kind of droplet generation based on high-speed imaging technology
Device.
Background technique
With the development of the social economy, droplet is closely related in surface of solids impingement phenomenon and many fields, such as biology doctor
, mechanical engineering, pesticide spraying, coating spraying, ink print, micro-fluidic chip, engine nozzle etc..Therefore, droplet exists
The raw Free Surface of the percussion flow movable property of the surface of solids flows problem, is one of the hot issue of hydrodynamics research, to droplet
Collision problem, which carries out research, has important theory and realistic meaning.
Currently, existing droplet generating device, structure is complex, and the precision controlling of fogdrop diameter is inaccurate, droplet
Stroke speed and flow regime be not easy to control on a solid surface and record, simultaneously because droplet quantity is excessive, with hitting in the time
The droplet for hitting the surface of solids is overlapped mutually, and filmed image is fuzzy, influences the note of the real processes moved to droplet in the surface of solids
Record, and existing droplet generating device volume is big, expensive, and cost of implementation is high.Therefore, the utility model it is opposite with it is existing
Technology, which is more advantageous to, furthers investigate droplet.
Summary of the invention
In view of the defects existing in the prior art and problem, the utility model provide a kind of droplet based on high-speed imaging technology
Generating device.
Solution adopted by the utility model to solve its technical problems is that: a kind of droplet based on high-speed imaging technology occurs
Device, including droplet generating mechanism and electric-control system, change by electric-control system and record the motion state of droplet；
The droplet generating mechanism is set on laboratory table, droplet generating mechanism include plant protection spray head, droplet sampling slot and
Rotation test platform, the plant protection spray head are located at the surface of droplet sampling slot, and whirling test stand is being set to droplet sampling slot just
Lower section, droplet sampling slot can be gone up and down between plant protection spray head, rotation test platform；The plant protection spray head passes through watering pipeline and water tank
Connection is provided with several filter mist through-holes, is placed with examination on the rotation test platform for spraying droplet on the droplet sampling slot
Sample is tested, part droplet passes through filter mist through-hole and falls to test specimen upper surface；It is additionally provided with around the rotation test platform
Video camera, velometer and humiture instrument；Pressure gauge and diaphragm pump are installed on the watering pipeline；
The electric-control system includes electric cabinet and data processing terminal equipment, high speed imaging unit built in the electric cabinet and
The input terminal of hydraulic pressure control unit, the high speed imaging unit is connect with video camera, the output end and data of high speed imaging unit
Processing terminal equipment electrical connection, data processing terminal equipment record and show shooting video, the hydraulic pressure control unit and diaphragm
Pump is electrically connected, and hydraulic pressure adjusting knob is equipped on electric cabinet and realizes that hydraulic pressure is adjusted.
Further, the fixed bracket of spray head is provided on the laboratory table, the fixed bracket of the spray head includes pedestal, fixation
Upright bar and mobile crossbearer, fixed upright bar are vertically arranged on pedestal, and one end of mobile cross bar is installed on fixed vertical by elastic clip
On bar, plant protection spray head is fixed on the mobile cross bar other end, and the mobile cross bar of up and down adjustment changes height of the plant protection spray head apart from laboratory table
Degree.
Further, the lower end of the droplet sampling slot is fixedly installed with Telescopic supporting rod, the Telescopic supporting rod
The first rod segment and the second rod segment including mutual sheathing are provided with location hole, the outer wall of the second rod segment on the side wall of the first rod segment
On be provided with positioning convex point with location hole cooperation, pass through the liter for pulling the first rod segment or the second rod segment to realize Telescopic supporting rod
Drop.
Further, the droplet sampling slot includes filter mist bottom plate and attached mist side wall, filter mist floor level setting, attached mist side
Wall is vertically arranged along filter mist bottom edge, and the filter mist through-hole is opened on filter mist bottom plate.
Further, the inside of the attached mist side wall and the position filtered on mist bottom plate in addition to filtering mist through-hole are provided with
Imbibition layer.
Further, light source there are two being symmetrical arranged around the rotation test platform.
Further, the laboratory table surrounding is provided with tripod, and the light source, video camera are respectively arranged in respective three
On foot prop.
Further, the watering pipeline is hose, is provided with fixed station on laboratory table, diaphragm pump is set to fixed station
On.
Further, the whirling test stand includes pedestal and turntable, and the pedestal upper surface is half recessed arc
Cylinder is equipped with bearing in half arc cylinder, and the turntable is mounted on the base by bearing, and turntable side is provided with rotation
Change hands handle.
The utility model has the beneficial effects that the droplet generating device based on high-speed imaging technology of the utility model, master
Wanting purposes is to change droplet size and stroke speed according to different pressures, realizes that drop as few as possible hits the surface of solids, energy
More clearly records photographing motion process, research droplet the surface of solids movement, sprawl state.Voltage controller power source controls different pressures
Under, mist droplet particle size size, movement velocity, the droplet quantity of agricultural plant protection spray head are all different, and are timely calculated using velometer
The average speed of droplet knockout process out uses double light source cooperation high-speed cameras with the shooting of 5000 frames/s speed, and record is clapped
The droplet process dropped on rotation test platform is taken the photograph, less droplet drippage experimental bench is ensure that, is more conducive to research droplet
Movement and sprawl characteristic；Using placement laboratory sample, controllable laboratory sample tilt angle, to droplet above rotation test platform
Impinge upon the motor behavior research of differing tilt angles；Lesser amount of droplet is set to strike sample surface using droplet sampling slot,
The more clearly from overall process that records photographing droplet is hit, the motor behavior research for single droplet in sample surface are laid the groundwork；It can
The test-bed and droplet for regulating and controlling height sample slot, are adjusted between plant protection spray head and experimental bench, plant protection spray head and droplet sample
The distance between slot creates more favorable experimental situation, the more accurate process for showing liquid drop movement；Humiture instrument can and
When embodiment experimental situation temperature and humidity.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the main view of the utility model；
Fig. 3 is the side view of the utility model；
Fig. 4 is the top view of the utility model；
Fig. 5 is the structural schematic diagram of plant protection spray head；
Fig. 6 is the structural schematic diagram of electric cabinet；
Fig. 7 is the structural schematic diagram of Telescopic supporting rod；
Fig. 8 is the structural schematic diagram of turntable horizontality；
Fig. 9 is the structural schematic diagram of turntable heeling condition；
Figure 10 is the overall logic block diagram of the utility model；
In figure: 1- light source, 2- velometer, the fixed bracket of 3- spray head, 301- pedestal, the fixed upright bar of 302-, 303- are mobile horizontal
Frame, 4- water supply pipeline, 5- pressure gauge, 6- diaphragm pump, 7- water tank, 8- video camera, 9- tripod, 10- humiture instrument, 11- data
Processing terminal equipment, 12- electric cabinet, 1201- indicator light, 1202- power-on switch, 1203- hydraulic pressure adjusting knob, 13- laboratory table,
14- droplet sampling slot, the 1401- filter attached mist side wall of mist bottom plate 1402-, 15- plant protection spray head, 1501- nozzle, 1502- water inlet,
1503- flow control valve, 16- rotation test platform, 1601- pedestal, 1602- turntable, 1603- rotating handle, 17- are telescopic
Support rod, the first rod segment of 1701-, the second rod segment of 1702-, 1703- location hole, 1704- positioning convex point, 18- filter mist through-hole, 19-
Fixed station.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1: a kind of droplet generating device based on high-speed imaging technology is set on laboratory table as Figure 1-10 shows
It is equipped with droplet generating mechanism and electric-control system, changes and record the motion state of droplet by electric-control system；
Droplet generating mechanism includes plant protection spray head 15, droplet sampling slot 14 and rotation test platform 16, wherein plant protection spray head
Water inlet 1502 is connected to by water supply pipeline 4 with water tank 7, and pressure gauge 5 and diaphragm pump 6, water supply pipeline are equipped on watering pipeline
It is mobile convenient for plant protection spray head 15 for hose, it is provided with fixed station 19 on laboratory table 13, diaphragm pump 6 is set on fixed station 19, is planted
It protects on spray head 15 and is provided with flow control valve 1503, the flow of plant protection spray head 15 is adjusted by flow control valve；Plant protection spray head
Positioned at the surface of droplet sampling slot 14, whirling test stand 16 is set to the underface of droplet sampling slot 14, and droplet samples slot 14
On be provided with several filter mist through-holes 18, test specimen is placed on rotation test platform 16, the nozzle 1501 of plant protection spray head sprays mist
Drop, part droplet pass through filter mist through-hole 18 and fall to test specimen upper surface, and reduction droplet declines process and in test specimen
The real motion process collided, extended on upper surface.
In the present embodiment, the lower end of droplet sampling slot 15 is fixedly installed with Telescopic supporting rod 17, Telescopic supporting rod
The first rod segment 1701 and the second rod segment 1702 including mutual sheathing are provided with location hole 17013 on the side wall of first rod segment, and
The positioning convex point 1704 with location hole cooperation is provided on the outer wall of two rod segments, positioning convex point is stuck in location hole, to fix the
One rod segment and the second rod segment change the height of entire Telescopic supporting rod 17, realize by pulling the first rod segment or the second rod segment
The lifting of Telescopic supporting rod, and then go up and down droplet sampling slot 14 can between plant protection spray head 15, rotation test platform 16, it adjusts
Droplet samples the height of slot distance test specimen, and the droplet for simulating different number is fallen to by the filter mist through-hole that droplet samples slot
Droplet movement environment on test specimen, wherein height of the collection droplet sampling slot 14 apart from laboratory table 13, up to 300
mm；Meanwhile the fixed bracket 3 of spray head is also equipped on laboratory table, the fixed bracket of spray head includes pedestal 301, fixed 302 and of upright bar
Mobile crossbearer 203, fixed upright bar are vertically arranged on pedestal, and one end of mobile cross bar is installed on fixed upright bar by elastic clip
On, the other end is equipped with plant protection spray head 15, by position of the mobile cross bar 303 of manual up and down adjustment in fixed upright bar 302, comes
Change height of the plant protection spray head 15 apart from laboratory table 13, simulates the droplet movement on the test specimen of the droplet whereabouts of different height
State, wherein highest distance of the plant protection spray head 15 apart from laboratory table is 500 mm, meanwhile, it includes filter mist bottom that droplet, which samples slot 14,
Plate 1401 and attached mist side wall 1402, filter mist floor level setting, attached mist side wall are vertically arranged along filter mist bottom edge, filter mist through-hole
Uniformly be opened in filter mist bottom plate on, and the inside of attached mist side wall 1402 and filter mist bottom plate 1401 on except filter mist through-hole 18 it
Outer position is provided with imbibition layer, and imbibition layer is silica gel absorption material or textile fabric or sponge etc., can will be sprayed to
Except the extra droplet quick adsorption on the external position of filter mist through-hole on the inside of attached mist side wall and filter mist bottom plate, prevent increasingly
More small droplets collect in big water droplet, avoid the formation of one stream of water and converge downwards and even flow on test specimen, to prevent
The incorporation of unfavorable factor, to guarantee optimal experimental situation；Whirling test stand includes pedestal 1601 and the rotation of upper end of lower end
Platform 1602, pedestal upper surface are half recessed arc cylinder, bearing are equipped in half arc cylinder, along bearing on pedestal 1601
Half-turn inclination angle value is marked, turntable 1602 is mounted on the base by bearing, and turntable side is provided with rotating handle
1603, hand-held rotating handle 1603 can slowly rotate turntable 1602, change the tilt angle of turntable 1602, due to test sample
The gravity of product and droplet is smaller, so turntable 1602, which relies on, frictionally holds heeling condition, at this time according on turntable 1602
Instruction mark be directed at the inclination angle value on pointed pedestal 1601 and carry out degree；It is also set up around rotation test platform 16
There are light source 1, video camera 8, velometer 2 and humiture instrument 10, light source, video camera are respectively arranged on respective tripod 9, test the speed
Device and humiture instrument are placed on laboratory table, and in order to clearly be imaged, two light sources 1 are staggered relatively, and video camera is high speed
Video camera uses the double light source cooperation high-speed cameras of symmetrically arranged AIT4000 type with the shooting of 5000 frames/s speed, takes the photograph at a high speed
Camera changes tilt angle to reach optimal imaging effect, and records photographing drops onto the droplet process on rotation test platform, shooting
The image video that droplet falls and collides, extends on test specimen；Droplet is timely calculated using velometer to hit
The average speed of journey；Humiture instrument records the temperature and humidity of experimental field, and the environment of true and accurate simulation droplet movement is probed into not
The influence that equality of temperature moisture condition moves droplet.
Electric-control system includes electric cabinet 12 and data processing terminal equipment 11, high speed imaging unit and water built in electric cabinet 12
Control unit is pressed, the input terminal of high speed imaging unit is connect with video camera 8, and the output end of high speed imaging unit and data processing are whole
End equipment 11 is electrically connected, and data processing terminal equipment is the computer that high-speed camera can be adapted to, and the picture in video camera passes through height
The Troublepix software of fast imaging unit, shows in computer, adjusts imaging definition, light and shade according to video imaging
Degree reuses the movement speed of Image-pro software processing droplet movement to reach optimal imaging effect and records photographing video
Degree, acceleration；Hydraulic pressure control unit is electrically connected with diaphragm pump, and hydraulic pressure adjusting knob 1203 is equipped on electric cabinet 12, realizes water
Pressure is adjusted, and starts electric cabinet power-on switch 1202, and indicator light 1201 is bright, rotates hydraulic pressure adjusting knob, and pressure gauge 5 shows different water
There are different droplet sizes according to pressure is adjusted, wherein pressure limit is in 0.25- in 15 operation process of agricultural plant protection spray head in pressure
0.4 MPa using voltage controller power source adjustable spraying pressure and then changes mist droplet particle size size, and specific droplet size is according to high-speed camera
Machine imaging scale acquires particle size numerical value, between Binding change plant protection spray head 15 and laboratory table 13, droplet sampling slot 14 with
Height between laboratory table 13, Lai Chengxian different-grain diameter size, different number droplet droplet pass through droplet sampling slot filter mist
Through-hole 18, meanwhile, the position of rotation test platform 16 is rotated, the tilt angle of test specimen upper surface is changed, is utilized
The droplet that Troublepix software records drop passes through filter mist through-hole to test specimen upper surface moves overall process.
Claims (9)
1. a kind of droplet generating device based on high-speed imaging technology, it is characterised in that: including droplet generating mechanism and automatically controlled system
System, changes by electric-control system and records the motion state of droplet；
The droplet generating mechanism is set on laboratory table, and droplet generating mechanism includes plant protection spray head, droplet sampling slot and rotation
Experimental bench, the plant protection spray head are located at the surface of droplet sampling slot, and whirling test stand is set to the underface of droplet sampling slot,
Droplet sampling slot can be gone up and down between plant protection spray head, rotation test platform；The plant protection spray head is connected to by watering pipeline with water tank,
For spraying droplet, it is provided with several filter mist through-holes on the droplet sampling slot, is placed with test sample on the rotation test platform
Product, part droplet pass through filter mist through-hole and fall to test specimen upper surface；Camera shooting is additionally provided with around the rotation test platform
Machine, velometer and humiture instrument；Pressure gauge and diaphragm pump are installed on the watering pipeline；
The electric-control system includes electric cabinet and data processing terminal equipment, high speed imaging unit and hydraulic pressure built in the electric cabinet
The input terminal of control unit, the high speed imaging unit is connect with video camera, the output end of high speed imaging unit and data processing
Terminal device electrical connection, data processing terminal equipment record and show shooting video, the hydraulic pressure control unit and diaphragm pump electricity
It connects, hydraulic pressure adjusting knob is installed on electric cabinet and realizes that hydraulic pressure is adjusted.
2. the droplet generating device according to claim 1 based on high-speed imaging technology, it is characterised in that: the laboratory table
On be provided with the fixed bracket of spray head, the fixed bracket of the spray head includes pedestal, fixed upright bar and mobile crossbearer, and fixed upright bar is vertical
It is mounted on the base, one end of mobile cross bar is installed in fixed upright bar by elastic clip, and plant protection spray head is fixed on mobile cross bar
The other end, the mobile cross bar of up and down adjustment change height of the plant protection spray head apart from laboratory table.
3. the droplet generating device according to claim 1 based on high-speed imaging technology, it is characterised in that: the droplet is adopted
The lower end of sample slot is fixedly installed with Telescopic supporting rod, and the Telescopic supporting rod includes the first rod segment and second of mutual sheathing
Rod segment is provided with location hole on the side wall of the first rod segment, and the convex with location hole cooperation is provided on the outer wall of the second rod segment
Point, by pulling the first rod segment or the second rod segment to realize the lifting of Telescopic supporting rod.
4. the droplet generating device according to claim 1 based on high-speed imaging technology, it is characterised in that: the droplet is adopted
Sample slot includes filter mist bottom plate and attached mist side wall, and filter mist floor level is arranged, and attached mist side wall is vertically arranged along filter mist bottom edge, institute
Filter mist through-hole is stated to be opened on filter mist bottom plate.
5. the droplet generating device according to claim 4 based on high-speed imaging technology, it is characterised in that: the attached mist side
Position on the inside of wall and filter mist bottom plate in addition to filtering mist through-hole is provided with imbibition layer.
6. the droplet generating device according to claim 1 based on high-speed imaging technology, it is characterised in that: the rotation is real
Light source there are two being symmetrical arranged is tested around platform.
7. the droplet generating device according to claim 6 based on high-speed imaging technology, it is characterised in that: the laboratory table
Surrounding is provided with tripod, and the light source, video camera are respectively arranged on respective tripod.
8. the droplet generating device according to claim 1 based on high-speed imaging technology, it is characterised in that: the upper hose
Road is hose, and fixed station is provided on laboratory table, and diaphragm pump is set on fixed station.
9. the droplet generating device according to claim 1 based on high-speed imaging technology, it is characterised in that: the rotation examination
Testing platform includes pedestal and turntable, and the pedestal upper surface is half recessed arc cylinder, is equipped with bearing in half arc cylinder,
The turntable is mounted on the base by bearing, and turntable side is provided with rotating handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821750562.8U CN208847447U (en) | 2018-10-27 | 2018-10-27 | Droplet generating device based on high-speed imaging technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821750562.8U CN208847447U (en) | 2018-10-27 | 2018-10-27 | Droplet generating device based on high-speed imaging technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208847447U true CN208847447U (en) | 2019-05-10 |
Family
ID=66376529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821750562.8U Active CN208847447U (en) | 2018-10-27 | 2018-10-27 | Droplet generating device based on high-speed imaging technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208847447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323845A (en) * | 2018-10-27 | 2019-02-12 | 河南农业大学 | Droplet generating device based on high-speed imaging technology |
-
2018
- 2018-10-27 CN CN201821750562.8U patent/CN208847447U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323845A (en) * | 2018-10-27 | 2019-02-12 | 河南农业大学 | Droplet generating device based on high-speed imaging technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107478800B (en) | Gravity casting simulates testing stand | |
| CN107290127B (en) | The visualization device and control method of a kind of rotor wing unmanned aerial vehicle spray field | |
| CN107091784B (en) | A kind of steel ball impact testing apparatus | |
| CN109323845A (en) | Droplet generating device based on high-speed imaging technology | |
| CN104164537B (en) | Vacuum refining physical simulation experiment method and device in a kind of steelmaking process | |
| CN109596370A (en) | A kind of spray testing system | |
| CN208847447U (en) | Droplet generating device based on high-speed imaging technology | |
| CN110006792A (en) | A kind of experimental system and method for droplet-particle collision coalescence test | |
| CN103675486B (en) | Measuring equipment for electrostatic spraying charge-to-mass ratio of multiple spray heads of spray rod | |
| CN103163069A (en) | Method and system for measuring solid material surface adhesion force | |
| CN109903632A (en) | Droplets impact cold wall face freezing process visualized experiment platform under a kind of concurrent condition | |
| CN111650115A (en) | Device for researching rainfall factor soil erosion | |
| CN207366545U (en) | Gravity casting simulates testing stand | |
| CN209589760U (en) | Parameter adjustable type fine droplet generating device | |
| CN2884380Y (en) | Multi-functional projectile motion research apparatus | |
| CN206340234U (en) | A kind of level throw motion experimental rig | |
| CN102023081A (en) | Minitype visual wind power and water power test bed | |
| CN204241247U (en) | A kind of distributed effect proving installation of liquid distribution trough | |
| CN105203545B (en) | A kind of unfavorable high overload misting cooling liquid film form observation system and method | |
| CN208350482U (en) | Sulfide-acidification-air blowing-absorption plant in a kind of soil or water quality | |
| CN203149951U (en) | Inclined surface demonstrating device for teaching physics | |
| CN108344539A (en) | A kind of automation dribble test equipment | |
| CN206378390U (en) | A kind of pitch test automatic liquid-feeding formula contact angle measurement | |
| CN109813521A (en) | A kind of plant protection drone wind field detection device | |
| CN202331997U (en) | Energy conservation demonstrator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |