CN108684516A - A kind of optimal mist droplet particle size spectrum of mist training is test bed - Google Patents
A kind of optimal mist droplet particle size spectrum of mist training is test bed Download PDFInfo
- Publication number
- CN108684516A CN108684516A CN201810376251.8A CN201810376251A CN108684516A CN 108684516 A CN108684516 A CN 108684516A CN 201810376251 A CN201810376251 A CN 201810376251A CN 108684516 A CN108684516 A CN 108684516A
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- mist
- particle size
- test bed
- droplet particle
- size spectrum
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The present invention provides a kind of optimal mist droplet particle size spectrum of mist training is test bed, mainly it is made of two large divisions, the mist of first part's flake type Hartmann atomizers trains case, and second part is ultrasonic atomizatio shower nozzle, can compare two kinds of atomizing effects and obtain the environment for being more advantageous to plant growth.Atomization quantity and mist droplet particle size in the whole device course of work can grow demand in real time according to crop and intelligently adjust, and the droplet environment most useful for plant growth can be obtained by comparing test result.
Description
Technical field
The present invention relates to agricultural engineering fields, and in particular to a kind of optimal mist droplet particle size spectrum of mist training is test bed.
Background technology
It is a kind of tillage method the most water-saving that mist, which is ploughed, and root system suspends in the air, most can freely grow, oxygen fills
Foot, root system is particularly flourishing, the water-saving fertilizer-saving of extreme.The control of insect pest simultaneously can reduce 75% or more, may not need first bromo
Soil disinfection, can be effectively controlled to the pollution of environment.The utilization rate of moisture and nutrient is high simultaneously, to have growing way
Soon, the high feature of yield is presently the most advanced tillage method.All it is that most exploitation is latent on horticultural production and research at present
The technology of power and foreground, former any type tillage method cannot compare, can be significantly increased the quality of production and
Quantity, greatly reduces manpower, fertilizer, and the input of water and pesticide, is a main developing direction of the following greenhouse farming.
It is ploughed in order to which mist is better achieved, it is necessary to carry out the farming of science in conjunction with control system, reasonably, scientifically adjust and plant
Object growing environment, the present invention provides a kind of optimal mist droplet particle sizes to compose test equipment, obtains the optimal droplet of mist training plant growth
Size.
Invention content
The present invention is intended to provide to train optimal mist droplet particle size spectrum test bed for a kind of mist, by comparing different-grain diameter droplet and
Influence of the different atomizing types to plant growth, develops optimal spectrum of fog drop.The ultrasonic atomizatio piece used in first atomization box
Spraying, atomization quantity is big, flake type Hartmann's atomizer is used in the second atomization box, the droplet sizes in two atomization boxes can root
Grow demand adjusting in real time according to crop.
A kind of optimal mist droplet particle size spectrum of mist training is test bed, which is characterized in that including liquid reserve tank, high-pressure pump, two mists
Change case, seed plate, the bottom of two atomization boxes is connected by input duct, nutrient solution reflux line with liquid reserve tank, high-pressure pump setting
In input duct;The top of two atomization boxes is placed with seed plate;
It is divided into multiple slot lattice in first atomization box, bottom is placed with absorbent wool, and each slot lattice are interior, and there are one positioning plate, positioning
The ultrasonic atomizatio piece of rectangular piezoelectric ceramic composition is uniformly installed on plate;
Flake type Hartmann's atomizer is installed, the flake type Hartmann atomizer is by Lavalle in the second atomization box
Nozzle and cuboid flake type multistage resonant device are assembled, Lavalle nozzle have air admission hole and inlet opening, air admission hole and into
The central axis of fluid apertures is orthogonal, and cuboid flake type multistage resonant utensil has a level Four resonant cavity, and per level-one resonant cavity with
Different from showerhead central axis wire clamp angle, there are threaded hole, the spiral shell in the one end of cuboid flake type multistage resonant device far from nozzle
Bolt is housed in pit.
Further, multiple positioning plates are uniformly distributed circumferentially in first atomization box, are uniformly pacified on each positioning plate
There are two ultrasonic atomizatio piece, each ultrasonic atomizatio pieces to pass through metal gluing knot by the Sheet Rectangular piezoelectric ceramic piece of multiple tilings for dress
It forms, the Sheet Rectangular piezoelectric ceramic piece upper sphere of movements for the elephants type phenolic resin forms asymmetric composite bending vibration structure.
Sphere of movements for the elephants type phenolic resin is mainly used to form bending vibration and gathers liquid film on atomizing piece surface, is then made pottery by Rectangular piezoelectric
The high-frequency vibration of tile, liquid water molecules are broken up and generate a large amount of water mist.
Further, it is respectively 10mm, 2mm, 0.1mm that the length of rectangular piezoelectric ceramic piece is generous.
Further, phenolic resin height is 0.1mm.
Further, the front of the rectangular piezoelectric ceramic piece connects anode electrode, reverse side connects cathode.
Due to the inverse piezoelectric effect of piezoelectric ceramics, bending vibration will be generated on two positive and negative anodes of power-up, to generate
A large amount of droplet.Metal glue connection is used between adjacent rectangle piezoelectric ceramic piece, selects the quantity of suitable rectangular piezoelectric ceramic piece
Change ultrasonic atomizatio frequency, to change droplet size, forms the droplet environment for being most suitable for plant growth.
Further, on the seed plate field planting hole a diameter of 2cm, plant, plant and field planting hole wall are inserted in field planting hole
Place is fixed with sponge, prevents gas leakage.
Further, Lavalle nozzle and cuboid flake type multistage resonant device are formed by Screw assembly.
Further, first order resonant cavity and showerhead central axis wire clamp angle are 30 °, second level resonant cavity and showerhead central axis
Wire clamp angle is 45 °, and third level resonant cavity is 60 ° with showerhead central axis wire clamp angle, fourth stage resonant cavity and showerhead central axis wire clamp
Angle is 75 °.
Further, the air admission hole of Lavalle nozzle and inlet opening are separately connected air compressor and high-pressure pump.
The optimal mist droplet particle size spectrum of mist training according to the present invention is test bed, and using column, floor space is small,
Space availability ratio is high;The mist of the present invention is ploughed experiment and is tested using through-beam Series, and ultrasonic atomizatio shower nozzle is installed in the first atomization box, adjacent
Metal glue connection is used between rectangular piezoelectric ceramic piece, selects the quantity of suitable rectangular piezoelectric ceramic piece to change ultrasonic atomizatio frequency
Rate forms the droplet environment for being most suitable for plant growth to change droplet size.Droplet sizes can in real time be grown according to crop
Demand is intelligently adjusted, have the characteristics that it is safe and reliable, with more practicability.Flake type Hartmann's mist is installed in the second atomization box
Change nozzle, the flake type Hartmann atomizer passes through spiral shell by a kind of Lavalle nozzle and cuboid flake type multistage resonant device
Line is assembled, and the air admission hole and inlet opening of Lavalle nozzle are separately connected air compressor and high-pressure pump, and receive from sky
The level Four resonant cavity of the fluid and power of air compressor and high-pressure pump, cuboid flake type multistage resonant device can work independently,
The angle of resonant cavity is different, and the pressure oscillation frequency of resonance cavity fluid is also different, therefore can be by controlling different angle
Resonant cavity work to obtain different size of droplet, in addition, the one end of cuboid flake type multistage resonant device far from nozzle
There is threaded hole, resonant cavity total length can be controlled to change pressure oscillation frequency, most by adjusting the length being threadedly coupled
The size of control mist droplet particle size eventually.
Because of the difference of the with good grounds operation principle of atomizer, compares two kinds of atomizing effects and show that being more advantageous to plant gives birth to
Long environment.Atomization quantity and mist droplet particle size in the whole device course of work can grow demand in real time according to crop and intelligently adjust
Section, be a kind of safety and the high mist of reliability to train optimal mist droplet particle size spectrum test bed.It can be by comparing experiment knot
Fruit obtains the droplet environment most useful for plant growth.
Description of the drawings
Fig. 1 trains optimal mist droplet particle size for mist of the present invention and composes test bed axonometric drawing;
Fig. 2 mists train optimal mist droplet particle size and compose test bed right view;
Fig. 3 is the internal structure chart of two atomization boxes;
Fig. 4 is the structural schematic diagram of rectangular piezoelectric ceramic;
Fig. 5 is the operating diagram of rectangular piezoelectric ceramic;
Fig. 6 is the structural schematic diagram of seed plate 1;
Fig. 7 is the structural schematic diagram of seed plate 2;
Fig. 8 is the front view schematic diagram of flake type Hartmann's atomizer;
Fig. 9 is the sectional view schematic diagram of flake type Hartmann's atomizer.
In figure:1, liquid reserve tank;2, rack;3, high-pressure pump;4, input duct;5, the first atomization box;6, plant;7, it is colonized
Hole;8, ultrasonic atomizatio piece;9, seed plate;10, the second atomization box;11, flake type Hartmann atomizer;12, nutrient solution return duct
Road;13, positioning plate;14, rectangular piezoelectric ceramic piece;15, metal-to-metal adhesive;16, phenolic resin;17, air admission hole;18, inlet opening;19,
Lavalle nozzle;20, cuboid flake type multistage resonant device.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
It is without being limited thereto.
As shown in Figure 1 and Figure 2, it is test bed mainly by two large divisions to train optimal mist droplet particle size spectrum for mist of the present invention
Case is cultivated in the examination of composition, first part's ultrasonic atomizatio piece 8, and second part flake type Hartmann atomizer 11 cultivates case.Including
Liquid reserve tank 1, high-pressure pump 3, two atomization boxes, the seed plates 9 being mounted in successively from top to bottom in rack 2, two atomization boxes i.e. first are atomized
Case 5, the second atomization box 10, the first atomization box 5, the second atomization box 10 bottom pass through input duct 4, nutrient solution reflux line
12 are connected with liquid reserve tank 1, and high-pressure pump 3 is arranged in input duct 4;When nutrient solution in the first atomization box 5, the second atomization box 10
Height just flows back into storage when reaching the height in hole on nutrient solution reflux line 12 from the first atomization box 5,10 bottom of the second atomization box
In liquid case 1, nutrient solution is made to recycle.The nutrient solution of the present apparatus completed in a strict locking type circulatory system nutrient and
The supply of moisture, may be implemented outside zero-emission, accomplish Intelligent uninterruptible and effect free from environmental pollution.Two atomization boxes it is upper
Portion is placed with seed plate 9;Seed plate 9 is equipped with the field planting hole 7 of proportional spacing, a diameter of 2cm of field planting hole 7, hole on the seed plate 9
It is inside inserted with plant 6, plant 6 is fixed at hole wall with sponge, and gas leakage is prevented.
It is divided into multiple slot lattice in first atomization box 5, bottom is placed with absorbent wool, there are one positioning plate 13 in each slot lattice,
Multiple positioning plates 13 are uniformly distributed circumferentially, and uniformly there are two ultrasonic atomizatio piece 8, each ultrasound mists for installation on each positioning plate 13
Change piece to be bonded by metal-to-metal adhesive 15 by the Sheet Rectangular piezoelectric ceramic piece 14 of multiple tilings, as shown in Figure 4.The thin plate square
14 upper sphere of movements for the elephants type phenolic resin 16 of shape piezoelectric ceramic piece forms asymmetric composite bending vibration structure, as shown in Figure 5." field "
Font phenolic resin 16 is mainly used to form bending vibration and gathers liquid film on atomizing piece surface, then passes through rectangular piezoelectric ceramic
The high-frequency vibration of piece 14, liquid water molecules are broken up and generate a large amount of water mist.The length of rectangular piezoelectric ceramic piece is generous to be respectively
10mm, 2mm, 0.1mm, 16 height of phenolic resin are 0.1mm.The front of the rectangular piezoelectric ceramic piece connects anode electrode, reverse side
Connect cathode.Due to the inverse piezoelectric effect of piezoelectric ceramics, bending vibration will be generated on two positive and negative anodes of power-up, it is big to generate
The droplet of amount.It is connected with metal-to-metal adhesive 15 between adjacent rectangle piezoelectric ceramic piece, selects the quantity of suitable rectangular piezoelectric ceramic piece
Change ultrasonic atomizatio frequency, to change droplet size, forms the droplet environment for being most suitable for the growth of plant 6.
Installation flake type Hartmann atomizer 11 in second atomization box 10, the flake type Hartmann atomizer 11 by
Lavalle nozzle 19 and cuboid flake type multistage resonant device 20 are formed by Screw assembly, and Lavalle nozzle 19 has air admission hole
17 and inlet opening 18, the central axis of air admission hole 17 and inlet opening 18 is orthogonal, the air admission hole 17 of Lavalle nozzle 19 and into
Fluid apertures 18 is separately connected air compressor and high-pressure pump 3, and receives fluid and power from air compressor and high-pressure pump 3.
Cuboid flake type multistage resonant device 20 has level Four resonant cavity, and per level-one resonant cavity tool, there are two aerosol exits, and per level-one
Resonant cavity is different from showerhead central axis wire clamp angle, and first order resonant cavity is 30 ° with showerhead central axis wire clamp angle, and the second level is humorous
Shake chamber and showerhead central axis wire clamp angle is 45 °, and third level resonant cavity is 60 ° with showerhead central axis wire clamp angle, fourth stage resonant cavity
It it is 75 ° with showerhead central axis wire clamp angle.There are threaded hole, the spiral shell in 20 one end far from nozzle of cuboid flake type multistage resonant device
Bolt is housed in pit.The level Four resonant cavity of cuboid flake type multistage resonant device 20 can work independently, the angle of resonant cavity
The pressure oscillation frequency of difference, resonance cavity fluid is also different, therefore can be worked by controlling the resonant cavity of different angle
To obtain different size of droplet, furthermore it is possible to by adjust be threadedly coupled length come control resonant cavity total length to
Change pressure oscillation frequency, the final size for controlling mist droplet particle size.
The course of work:Nutrient solution is input to two mists by the built-in nutritious liquid of liquid reserve tank 1 by kinetic pump 3 through input duct 4
Change in case;It is uniformly drilled with the field planting hole 7 of diameter 2cm on seed plate 9, plant 6 is inserted in hole, anti-leak-stopping is fixed in contact position with sponge
Gas.As shown in figure 3, the first atomization box 5 divides for four slot lattice, a positioning plate 13 is placed in each slot lattice, is equipped with above
The identical ultrasonic atomizatio piece of two vibration frequencies 8.In conjunction with Fig. 6, seed plate 9 is mainly made of cystosepiment, is uniformly carved with field planting above
Hole 7 is inserted with plant 6 in field planting hole 7.The rectangular piezoelectric ceramic of ultrasonic atomizatio piece 8, the reverse side of Rectangular Piezoelectric Ceramic Thin Plate connect negative
Pole, front connect anode, and electrode is connected with conducting wire, due to the inverse piezoelectric effect of piezoelectric ceramics, on two positive and negative anodes of power-up
Bending vibration will be generated, to generate a large amount of droplet.It is connected with metal-to-metal adhesive 15 between adjacent rectangle piezoelectric ceramic piece, according to plant
Object 6 grows required control environment, selects suitable piezoelectric ceramics the piece number access circuit to work, to meet required work
Working frequency.Liquid reserve tank 1 is just flowed back into when the nutrient solution height in atomization box reaches the height in hole on nutrient solution reflux line 12
In.Flake type Hartmann atomizer 11 generates high-frequency fluctuation to make using fluid dynamic in nozzle in second atomization box 10
The air of the principle of liquid atomization, the 2-6bar from air compressor enters from air admission hole 17, the nutrient solution from high-pressure pump 3
Enter from the inlet opening 18 of nozzle radial direction and be inhaled into nozzle center flow channels, forms gas-liquid mixture, subsequent gas-liquid mixture
It is atomized under the high-frequency pressure wave action of resonant cavities at different levels in resonator and is ejected into from the outlet of the resonant cavity of resistance minimum
In atomization box, since the flow of air compressor supply is relatively large, atomization quantity is also larger, while can form different grains
The droplet of diameter.
The embodiment is the preferred embodiments of the present invention, but present invention is not limited to the embodiments described above, not
Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace
Or modification all belongs to the scope of protection of the present invention.
Claims (9)
1. it is test bed that a kind of mist trains optimal mist droplet particle size spectrum, which is characterized in that including liquid reserve tank (1), high-pressure pump (3), two
The bottom of a atomization box, seed plate (9), two atomization boxes passes through input duct (4), nutrient solution reflux line (12) and liquid reserve tank
(1) it is connected, high-pressure pump (3) is arranged in input duct (4);The top of two atomization boxes is placed with seed plate (9);Seed plate (9)
It is equipped with the field planting hole (7) of proportional spacing,
It is divided into multiple a slot lattice in first atomization box (5), bottom is placed with absorbent wool, and each slot lattice are interior, and there are one positioning plates
(13), the ultrasonic atomizatio piece (8) of rectangular piezoelectric ceramic piece (14) composition is uniformly installed on positioning plate (13);
Installation flake type Hartmann atomizer (11), the flake type Hartmann atomizer (11) in second atomization box (10)
It is assembled by Lavalle nozzle (19) and cuboid flake type multistage resonant device (20), Lavalle nozzle (19) has air admission hole
(17) and inlet opening (18), the central axis of air admission hole (17) and inlet opening (18) is orthogonal, and cuboid flake type multistage is humorous
The device (20) that shakes has level Four resonant cavity, and per level-one resonant cavity, there are two aerosol exits for tool, and per level-one resonant cavity with in nozzle
Heart axis angle is different, and there are threaded hole, the threaded hole in the one end of cuboid flake type multistage resonant device (20) far from nozzle
It is interior that bolt is housed.
2. it is test bed that mist as described in claim 1 trains optimal mist droplet particle size spectrum, it is characterised in that:First atomization box
(5) multiple positioning plates (13) are uniformly distributed circumferentially in, and uniformly there are two ultrasonic atomizatio pieces for installation on each positioning plate (13)
(8), each ultrasonic atomizatio piece (8) by multiple tilings Sheet Rectangular piezoelectric ceramic piece (14) by metal-to-metal adhesive (15) bond by
At Sheet Rectangular piezoelectric ceramic piece (14) the upper sphere of movements for the elephants type phenolic resin (16) forms asymmetric composite bending vibration knot
Structure.
3. it is test bed that mist as claimed in claim 2 trains optimal mist droplet particle size spectrum, it is characterised in that:Rectangular piezoelectric ceramic piece
(14) length generous respectively 10mm, 2mm, 0.1mm.
4. it is test bed that mist as claimed in claim 2 trains optimal mist droplet particle size spectrum, it is characterised in that:Phenolic resin (16) is high
Degree is 0.1mm.
5. it is test bed that mist as described in claim 1 trains optimal mist droplet particle size spectrum, it is characterised in that:The Rectangular piezoelectric pottery
The front of tile (14) connects anode electrode, reverse side connects cathode.
6. it is test bed that mist as described in claim 1 trains optimal mist droplet particle size spectrum, it is characterised in that:On the seed plate (9)
A diameter of 2cm of field planting hole (7), field planting hole (7) is interior to be inserted with plant, and plant is fixed at field planting hole (7) wall with sponge, anti-leak-stopping
Gas.
7. it is test bed that mist as described in claim 1 trains optimal mist droplet particle size spectrum, it is characterised in that:Lavalle nozzle (19)
It is formed by Screw assembly with cuboid flake type multistage resonant device (20).
8. it is test bed that mist as described in claim 1 trains optimal mist droplet particle size spectrum, it is characterised in that:First order resonant cavity with
Showerhead central axis wire clamp angle is 30 °, and second level resonant cavity is 45 ° with showerhead central axis wire clamp angle, third level resonant cavity and nozzle
Central axis angle is 60 °, and fourth stage resonant cavity is 75 ° with showerhead central axis wire clamp angle.
9. it is test bed that mist as described in claim 1 trains optimal mist droplet particle size spectrum, it is characterised in that:Lavalle nozzle (19)
Air admission hole (17) and inlet opening (18) be separately connected air compressor and high-pressure pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810376251.8A CN108684516B (en) | 2018-04-25 | 2018-04-25 | Test bed for testing optimal fogdrop particle size spectrum in aeroponic culture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810376251.8A CN108684516B (en) | 2018-04-25 | 2018-04-25 | Test bed for testing optimal fogdrop particle size spectrum in aeroponic culture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108684516A true CN108684516A (en) | 2018-10-23 |
| CN108684516B CN108684516B (en) | 2020-02-21 |
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ID=63845691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810376251.8A Active CN108684516B (en) | 2018-04-25 | 2018-04-25 | Test bed for testing optimal fogdrop particle size spectrum in aeroponic culture |
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| CN (1) | CN108684516B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946513A (en) * | 2020-08-07 | 2020-11-17 | 哈尔滨工程大学 | Piezoelectric type single-droplet generator device with adjustable length-diameter ratio of nozzle |
| CN112620058A (en) * | 2020-12-23 | 2021-04-09 | 北京强度环境研究所 | Hartmann sound generator with laval nozzle |
-
2018
- 2018-04-25 CN CN201810376251.8A patent/CN108684516B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946513A (en) * | 2020-08-07 | 2020-11-17 | 哈尔滨工程大学 | Piezoelectric type single-droplet generator device with adjustable length-diameter ratio of nozzle |
| CN112620058A (en) * | 2020-12-23 | 2021-04-09 | 北京强度环境研究所 | Hartmann sound generator with laval nozzle |
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| Publication number | Publication date |
|---|---|
| CN108684516B (en) | 2020-02-21 |
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Effective date of registration: 20210521 Address after: 2081, building a, 88 Jianghai West Road, Liangxi District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Xiangyuan Information Technology Co.,Ltd. Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before: JIANGSU University |
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Effective date of registration: 20211028 Address after: 221316 No. 1 Zhangjiagang East Road, Yitang Town, Pizhou City, Jiangsu Province Patentee after: Pizhou Binhe SME Management Service Co.,Ltd. Address before: 2081, building a, 88 Jianghai West Road, Liangxi District, Wuxi City, Jiangsu Province, 214000 Patentee before: Wuxi Xiangyuan Information Technology Co.,Ltd. |
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