CN206253292U - A kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle - Google Patents
A kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle Download PDFInfo
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- CN206253292U CN206253292U CN201621362972.6U CN201621362972U CN206253292U CN 206253292 U CN206253292 U CN 206253292U CN 201621362972 U CN201621362972 U CN 201621362972U CN 206253292 U CN206253292 U CN 206253292U
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- Prior art keywords
- piezoelectricity
- venturi tube
- phase flow
- ultrasonic atomizatio
- shower nozzle
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Abstract
The utility model belongs to field of plant protection machine, more particularly to a kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle.Piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle of the present utility model, including drive end bearing bracket, Venturi tube, front shroud, front clamp block, bolt, rear gripping block, rear end cap, enter liquid interface, feed tube, intake interface, air inlet pipe, circular screen pack, electric interfaces, back shroud, electrode weld tabs and piezoelectric ceramics group.The piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle that the utility model is provided, organically combined by by piezoelectric supersonic atomization and hydrokinetic type ultrasonic atomizatio, tiny droplet can be obtained and be uniformly distributed and shunk to gather shape ejection, small area and low discharge dispenser are realized, so as to solve the problems, such as the dispenser on the isometric plantlet surface of strawberry class.
Description
Technical field
The utility model belongs to field of plant protection machine, more particularly to a kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle.
Background technology
At present, the simple hand sprayer of common structure carries out big discharge rate, blindness, asymmetric dispenser on Chinese agriculture,
Generally existing the phenomenons such as more serious " run, drip, leak ", and the amount of spraying of agricultural chemicals is big, and the mist droplet particle size of generation is thick,
Adhesive rate on crop is low, and agricultural chemicals utilization rate only has 30% or so, causes prevention effect to decline and dosage increase.In recent years
Come, ultra low volume spray is a kind of pesticide application technology that plant protection industry is widelyd popularize.Result of study shows that ultra low volume spray sprays with conventional
Mist is compared, and can save agricultural chemicals 10%~30%.
Existing ultralow flow nozzle is mainly using one or more atomization sides such as pressure atomization, centrifugal atomizing, electrostatic atomizations
The method that formula is combined, the shortcomings of there is atomization quantity and big mist droplet particle size.And ultrasonic atomizing nozzle has compact conformation, response fast
Speed, atomization quantity is moderate and is atomized the fine mist disperse for producing around plant leaf surface, with blade face contact surface area greatly, is conducive to
The absorption of agricultural chemicals, reduces the waste and the pollution to environment of agricultural chemicals.Ultrasonic atomizing nozzle is divided into piezoelectric type and hydrokinetic type again
Two kinds, droplet that simple piezoelectric-type ultrasonic atomizer is produced is uniform, energy consumption is small, and mist droplet particle size is with piezoelectric vibrator design frequency
Change and change, also mist droplet particle size high is smaller for frequency, has the disadvantage that atomization quantity is small, and droplet arbitrarily flies away no directionality；And flow
Body dynamical type ultrasonic atomizing nozzle, atomization quantity it is big and can orient droplet is blown into specified location, have the disadvantage in gas pressure
When power is smaller, its mist droplet particle size is thick and uneven, needs to provide high pressure and big flow if tiny droplet is expected
Compressed air, high energy consumption.
Utility model content
The purpose of this utility model be for present in prior art cannot and meanwhile take into account that atomization quantity is big, particle diameter is thin and
A kind of deficiency of directed spraying, there is provided piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle.
The utility model is to realize above-mentioned technical purpose by following technological means.
A kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle, including drive end bearing bracket, Venturi tube, front shroud, front clamp block, bolt,
Afterwards gripping block, rear end cap, enter liquid interface, feed tube, intake interface, air inlet pipe, circular screen pack, electric interfaces, back shroud,
Electrode weld tabs and piezoelectric ceramics group；
The front clamp block is bolted with rear gripping block, and clamps front shroud, piezoelectric ceramics group, electrode weldering successively
Piece and back shroud；The drive end bearing bracket is connected through a screw thread front shroud, and Venturi tube is fixed on the shoulder hole and drive end bearing bracket of front shroud
Groove in；The Venturi tube is radially provided with multiple pod apertures near exit, Venturi tube periphery and front shroud
Annular chamber is formed between the inner headed face of shoulder hole；Two inlet openings are arranged with the front shroud, rear end cap is connected by screw thread
Connect front clamp block；The air inlet pipe and feed tube arranged concentric, and circular screen pack is wrapped up between both interlayers；The air inlet
Pipe is connected through a screw thread front shroud, and electric interfaces are connected through a screw thread rear end cap, enters liquid interface and is threadedly attached in feed tube
On, intake interface is connected through a screw thread feed tube and clamps air inlet pipe.
Preferably, the Venturi tube is made up of circular cone contraction section, cylinder throat, pod apertures and circular cone diffuser.
Preferably, the cone angle γ of the circular cone contraction section of the Venturi tube is 20 °~22 °, the circle of circular cone diffuser
Coning angle β is 7 °~15 °, and the axis of the pod apertures of Venturi tube is 74 °~76 ° with the axis angle α of Venturi tube, and water conservancy diversion
The number N in hole is 4,6 or 8, and the diameter D1 of pod apertures is 0.5-1mm, the diameter D2 of the cylinder throat of Venturi tube for 1 ±
0.05mm, the port of export of Venturi tube is provided with boss, the boss of the port of export is stuck in the groove of drive end bearing bracket, and Venturi tube enters
Mouth end is stuck in the groove of front shroud.
Preferably, the droplet size of the piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle is by changing the pod apertures of Venturi tube
Number N and water conservancy diversion bore dia D1 is controlled.
Preferably, the front shroud uses the stepped cover plate with conical transition face, and material is Titanium alloy Ti-6Al-4V,
Back shroud (7) material is ceramic material.
Preferably, the circular screen pack is made using annular sponge.
Relative to prior art, the utility model has the advantages that：
For cannot taking into account of existing of prior art simultaneously, atomization quantity is big, particle diameter thin and the deficiency of directed spraying, this practicality
It is new there is provided a kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle, have by by piezoelectric supersonic atomization and hydrokinetic type ultrasonic atomizatio
Machine is combined, and can obtain tiny droplet and be uniformly distributed and shrink to gather shape ejection, realizes small area and low discharge dispenser, from
And solve the problems, such as the dispenser on the isometric plantlet surface of strawberry class.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model embodiment piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle；
Fig. 2 is the utility model embodiment piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle front portion partial enlarged drawing；
Fig. 3 is the structural representation of Venturi tube 2 of the utility model embodiment piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle；
In Fig. 1：1. drive end bearing bracket；2. Venturi tube；3. front shroud；4. front clamp block；5. bolt；6. gripping block after；7. after
End cap；8. liquid interface is entered；9. feed tube；10. intake interface；11. air inlet pipe；12. circular screen packs；13. electric interfaces；
14. back shrouds；15. electrode weld tabs；16. piezoelectric ceramics groups.
In Fig. 2:1. drive end bearing bracket；2. Venturi tube；2a. circular cone contraction sections；2b. pipe cylinders throat；2c. pod apertures；2d. justifies
Cone diffuser；3. front shroud；3a. inlet openings.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments
As shown in Figure 1-Figure 3, the piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle of the utility model embodiment, specifically includes：Front end
Lid 1, Venturi tube 2, front shroud 3, front clamp block 4, bolt 5, rear gripping block 6, rear end cap 7, enter liquid interface 8, feed tube 9, enter
Gas interface 10, air inlet pipe 11, circular screen pack 12, electric interfaces 13, back shroud 14, electrode weld tabs 15 and piezoelectric ceramics group
16。
Front clamp block 4 is connected with rear gripping block 6 by bolt 5, and clamps front shroud 3, piezoelectric ceramics group 16, electrode successively
Weld tabs 15 and back shroud 7；Drive end bearing bracket 1 is connected through a screw thread front shroud 3, and Venturi tube 2 is fixed on the shoulder hole of front shroud 3 and preceding
In the groove of end cap 1；Venturi tube 2 is radially provided with multiple pod apertures 2c, the periphery of Venturi tube 2 and protecgulum near exit
Annular chamber is formed between the inner headed face of the shoulder hole of plate 3；Two inlet opening 3a are arranged with front shroud 3, can thus be made
Liquid is flowed in annular chamber, and then is inhaled into the pod apertures 2c of Venturi tube 2；Rear end cap 7 is connected through a screw thread front clamp block
4；Air inlet pipe 11 and the arranged concentric of feed tube 9, and circular screen pack 12 is wrapped up between both interlayers, circular screen pack 12 is adopted
It is made with annular sponge, plays a part of to filter molecule, it is to avoid the pod apertures 2c of its clogging nozzle.Air inlet pipe 11
For accessing compressed air to the piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle, air inlet pipe 11 is connected through a screw thread front shroud 3, electrically
Interface 13 is connected through a screw thread rear end cap 7, enters liquid interface 8 for coming cut-in operation institute to the piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle
The liquid for needing, enters liquid interface 8 and is threadedly attached on feed tube 9, and intake interface 10 is connected through a screw thread feed tube 9 and clamps
Air inlet pipe 11.Piezoelectric ceramics group 16 is made up of even number coaxial the enumerating of annular shape piezoelectric ceramic piece, and is electrically connected with parallel way.
The electrode of piezoelectric ceramics group 16 is drawn by electrode weld tabs 15.
In the utility model embodiment, Venturi tube 2 is by circular cone contraction section 2a, cylinder throat 2b, pod apertures 2c and circle
Cone diffuser 2d is constituted.The cone angle γ of the circular cone contraction section 2a of Venturi tube 2 is 20 °~22 °, the circle of circular cone diffuser 2d
Coning angle β is 7 °~15 °, and the axis of the pod apertures 2c of Venturi tube 2 is 74 °~76 ° with the axis angle α of Venturi tube 2, and
The number N of pod apertures 2c is 4,6 or 8, and the diameter D1 of pod apertures 2c is 0.5-1mm, and the cylinder throat 2b's of Venturi tube 2 is straight
Footpath D2 is 1 ± 0.05mm, and the port of export of Venturi tube 2 is provided with boss, and the boss of the port of export is stuck in the groove of drive end bearing bracket 1,
The arrival end of Venturi tube 2 is stuck in the groove of front shroud 3.
The droplet size of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle by change the pod apertures 2c of Venturi tube 2 number N and
Water conservancy diversion bore dia D1 is controlled.Thus overcome simple piezoelectric-type ultrasonic atomizer mist droplet particle size size uncontrollable
It is not enough.
Front shroud 3 uses the stepped cover plate with conical transition face, and material is Titanium alloy Ti-6Al-4V, plays amplification and shakes
The effect of width, the material of back shroud 7 is ceramic material, and spread speed of the sound in ceramic material is the 2.3~2.7 of metal material
Between times, therefore when back shroud uses ceramic material, its working frequency is greatly improved, and carrying due to nozzle operation frequency
Height, its mist droplet particle size will also diminish.The utility model embodiment provide piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle operationally, liquid
Body enters from liquid interface 8 is entered, by feed tube 9, while being passed through a certain amount of compressed air, compressed air warp in intake interface 10
Venturi tube 2 is ejected into by air inlet pipe 11, and negative pressure is formed in Venturi tube 2, cause the liquid in feed tube 9, by source
Source constantly sucks the pod apertures 2c of Venturi tube 2, and AC signal is carried in piezoelectric ceramics group 16 by electrode weld tabs 15, pressure
Electroceramics group 16 will be vibrated with input signal identical frequency, cause the longitudinal direction of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle
Vibration, vibrate the pressure waves for producing along shower nozzle Propagation, causes shower nozzle end to occur to be shaken with input signal same frequency
It is dynamic.When the pod apertures 2c that liquid reaches Venturi tube 2 is the atomization end face of nozzle, because the surface tension effects of itself are in mist
Changing end face will form thin film, and when the vibration amplitude for being atomized end face reaches certain value, film will overcome the surface of itself
Power is acted on and is atomized, and this is first time ultrasonic atomizatio, and the compressed gas for being at the same time ejected into Venturi tube 2 sequentially pass through text
Circular cone contraction section 2a, the cylinder throat 2b and circular cone diffuser 2d of venturi 2, form and kick stream at a high speed, then with pod apertures 2c in product
Raw droplet mutually impact and broken, carries out secondary-atomizing, and is sufficiently mixed in circular cone diffuser 2d, obtains thin
Small and equally distributed droplet is simultaneously gathered shape and is sprayed to shrink.
The utility model is by said structure, using ultrasonic atomization by the way of biphase gas and liquid flow atomization is combined, shape
Into secondary-atomizing, the jet atomization effect of nozzle can be made more preferably, atomization is more thorough, therefore is highly suitable in strawberry class
Dispenser problem on isometric plantlet surface.
Although having been described for preferred embodiment of the present utility model, those skilled in the art once know substantially
Creative concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to bag
Include preferred embodiment and fall into having altered and changing for the utility model scope.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this practicality to the utility model
New spirit and scope.So, if it is of the present utility model these modification and modification belong to the utility model claim and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising these changes and modification.
Claims (6)
1. a kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle, it is characterised in that including drive end bearing bracket (1), Venturi tube (2), front shroud
(3), front clamp block (4), bolt (5), rear gripping block (6), rear end cap (7), enter liquid interface (8), feed tube (9), intake interface
(10), air inlet pipe (11), circular screen pack (12), electric interfaces (13), back shroud (14), electrode weld tabs (15) and piezoelectricity pottery
Porcelain group (16)；
The front clamp block (4) is connected with rear gripping block (6) by bolt (5), and clamps front shroud (3), piezoelectric ceramics successively
Group (16), electrode weld tabs (15) and back shroud (7)；The drive end bearing bracket (1) is connected through a screw thread front shroud (3), Venturi tube (2)
It is fixed in the groove of the shoulder hole of front shroud (3) and drive end bearing bracket (1)；The Venturi tube (2) is radially opened near exit
There are multiple pod apertures (2c), annular chamber is formed between the inner headed face of the shoulder hole of Venturi tube (2) periphery and front shroud (3)；
Two inlet openings (3a) are arranged with the front shroud (3), rear end cap (7) is connected through a screw thread front clamp block (4)；It is described enter
Tracheae (11) and feed tube (9) arranged concentric, and circular screen pack (12) is wrapped up between both interlayers；The air inlet pipe (11)
Front shroud (3) is connected through a screw thread, electric interfaces (13) are connected through a screw thread rear end cap (7), enters liquid interface (8) and connected by screw thread
It is connected on feed tube (9), intake interface (10) is connected through a screw thread feed tube (9) and clamps air inlet pipe (11).
2. a kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle according to claim 1, it is characterised in that the Venturi tube
(2) it is made up of circular cone contraction section (2a), cylinder throat (2b), pod apertures (2c) and circular cone diffuser (2d).
3. a kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle according to claim 2, it is characterised in that the Venturi tube
(2) the cone angle γ of circular cone contraction section (2a) is 20 °~22 °, and the cone angle β of circular cone diffuser (2d) is 7 °~15 °,
The axis of the pod apertures (2c) of Venturi tube (2) is 74 °~76 ° with the axis angle α of Venturi tube (2), and pod apertures (2c)
Number N be 4,6 or 8, the diameter D1 of pod apertures (2c) is 0.5-1mm, the diameter of the cylinder throat (2b) of Venturi tube (2)
D2 is 1 ± 0.05mm, and the port of export of Venturi tube (2) is provided with boss, and the boss of the port of export is stuck in the groove of drive end bearing bracket (1)
Interior, the arrival end of Venturi tube (2) is stuck in the groove of front shroud (3).
4. according to a kind of any described piezoelectricity two-phase flow ultrasonic atomizatio shower nozzles of claim 1-3, it is characterised in that the piezoelectricity
The droplet size of two-phase flow ultrasonic atomizatio shower nozzle is straight by changing the number N and pod apertures of the pod apertures (2c) of Venturi tube (2)
Footpath D1 is controlled.
5. a kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle according to claim 1, it is characterised in that the front shroud (3)
Using the stepped cover plate with conical transition face, material is Titanium alloy Ti-6Al-4V, and back shroud (7) material is ceramic material.
6. a kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle according to claim 1, it is characterised in that the circular filtering
Net (12) is made using annular sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362972.6U CN206253292U (en) | 2016-12-13 | 2016-12-13 | A kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362972.6U CN206253292U (en) | 2016-12-13 | 2016-12-13 | A kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN206253292U true CN206253292U (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621362972.6U Expired - Fee Related CN206253292U (en) | 2016-12-13 | 2016-12-13 | A kind of piezoelectricity two-phase flow ultrasonic atomizatio shower nozzle |
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|---|---|
| CN (1) | CN206253292U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694296A (en) * | 2016-12-13 | 2017-05-24 | 江苏省农业科学院 | Piezoelectric two-phase flow ultrasonic atomization sprayer |
| CN114367407A (en) * | 2022-01-11 | 2022-04-19 | 广州市巨龙印制板设备有限公司 | Method and device for producing precise line by adopting ultrasonic atomizing nozzle |
| CN116921091A (en) * | 2023-09-18 | 2023-10-24 | 国检测试控股集团辽宁有限公司 | Atomizer |
-
2016
- 2016-12-13 CN CN201621362972.6U patent/CN206253292U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694296A (en) * | 2016-12-13 | 2017-05-24 | 江苏省农业科学院 | Piezoelectric two-phase flow ultrasonic atomization sprayer |
| CN114367407A (en) * | 2022-01-11 | 2022-04-19 | 广州市巨龙印制板设备有限公司 | Method and device for producing precise line by adopting ultrasonic atomizing nozzle |
| CN116921091A (en) * | 2023-09-18 | 2023-10-24 | 国检测试控股集团辽宁有限公司 | Atomizer |
| CN116921091B (en) * | 2023-09-18 | 2023-12-05 | 国检测试控股集团辽宁有限公司 | Atomizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20211213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |