CN104549813A - Ultrasonic-pneumatic electrostatic nozzle - Google Patents
Ultrasonic-pneumatic electrostatic nozzle Download PDFInfo
- Publication number
- CN104549813A CN104549813A CN201510048967.1A CN201510048967A CN104549813A CN 104549813 A CN104549813 A CN 104549813A CN 201510048967 A CN201510048967 A CN 201510048967A CN 104549813 A CN104549813 A CN 104549813A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- spray boom
- generator
- nozzle
- shower nozzle
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0653—Details
-
- 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
- B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
Landscapes
- Catching Or Destruction (AREA)
- Special Spraying Apparatus (AREA)
Abstract
An ultrasonic-pneumatic electrostatic nozzle comprises a spray rod with a tiny liquid flow channel processed in the axis, an ultrasonic generator, a nozzle air tap, a high-voltage electrostatic generator. The nozzle air tap surrounds the end of the spray rod to form the nozzle, a support device is arranged in the middle of the spray rod, the ultrasonic generator and the high-voltage electrostatic generator are pressed and fixed on one side face, away from the nozzle, of the support device through a fastening device, the ultrasonic generator is provided with a piezoelectric wafer, a backseat and a lead, the lead is connected to the piezoelectric wafer, short pulse of voltage acts on two poles of the piezoelectric wafer through the lead, the piezoelectric wafer elastically deforms so as to generate elastic oscillation, the high-voltage electrostatic generator is provided with an electrode to be connected with the liquid flow channel in the axis of the spray rod, and the high-voltage electrostatic generator applies high voltage static on liquid passing through the liquid flow channel of the spray rod. The nozzle is simple in structure, convenient to operate, safe and reliable, adjustable in spray flux and distance and the like, and is of great significance to spray effect improvement and reduction of chemical waste.
Description
Technical field
The present invention relates to a kind of ultrasonic-strength static nozzle, particularly one is for improving drop fogging degree, improves crop medicine and nutrient absorption, reduces drug waste, improves the device of spray effect, belong to the corollary apparatus of agriculture, forestry plant protection equipment.
Background technology
Machinery pesticide application technology essence be in order to improve agricultural chemicals on object (i.e. target) to target deposition, reduce or eliminate its deposition in non-targeted thing or region, take rational technical method that the formulation rate of agricultural chemicals is reduced to minimum of a value, thus farthest improve the effective rate of utilization of agricultural chemicals, the harm of agricultural chemicals to operating personnel and the pollution risk to environment will be eliminated simultaneously.Low amounts, low stain spray technique are problems in the urgent need to address in current pesticide application technology field.Practice shows, under applying ultrasonication condition to liquid, effectively can improve the fogging degree of drop, the raising of fogging degree is conducive to the suction-operated of crop to liquid, is beneficial to absorption simultaneously, reduces drug use amount.The additional function pushed with strength, can better blow the liquid of mist state to crop leaf table.At present, domestic mechanical pesticide application technology is ranging in low level always, is difficult to the demand meeting market, and medicine effective rate of utilization is low, and high amount of drug drift is run off, and environmental pollution is serious, and cause agriculture and forestry product drug residue to exceed standard, the serious threat people's is healthy.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of ultrasonic-strength static nozzle, improve drop fogging degree, improve crop medicine and nutrient absorption, reduce drug waste, improve spray effect.
The technical solution adopted for the present invention to solve the technical problems is: a kind of ultrasonic-strength static nozzle, comprise the spray boom that axle center is processed with fine liquid runner, it is characterized in that, be provided with ultrasonic generator, shower nozzle valve, HV generator, shower nozzle valve arranges to be enclosed in and forms shower nozzle in spray boom end, bracing or strutting arrangement is provided with in the middle part of described spray boom, ultrasonic generator, HV generator by fastener be pressed abd fixed on bracing or strutting arrangement away from a side of shower nozzle, described ultrasonic generator is provided with piezoelectric chip, back seat and wire, wire is connected on piezoelectric chip, back seat is positioned at piezoelectric chip one end and contacts with described HV generator, described piezoelectric chip is provided with piezoelectric ceramic piece, electrode slice, electrode slice adopts argent to be plated in the tow sides of piezoelectric ceramic piece respectively as conductive material, voltage short pulse will act on piezoelectric chip the two poles of the earth by wire, generation elastic deformation is produced elastic oscillation by piezoelectric chip, described HV generator is provided with the flow channel for liquids that electrode connects spray boom axle center, high-pressure electrostatic is applied on the liquid by spray boom flow channel for liquids by HV generator.
Described ultrasonic generator core is provided with the through hole adapted with described spray boom, the piezoelectric chip of ultrasonic generator and back seat and spray boom contact portion installing insulating rubber cushion, the position uniform application insulating cement of corresponding piezoelectric chip on the bar wall of spray boom.
Described piezoelectric ceramic piece is flat circle tray type structure.
Described shower nozzle valve is provided with air volume regulating valve, and the change of air volume regulating valve aperture can change the size of throughput, changes by regulating the pressure size of external feeder the pressure passing into gas.
Described fastener comprises pad, spring shim and hold-down nut, described spray boom is provided with screw thread away from the end of shower nozzle, pad, spring shim, hold-down nut are successively set on spray boom end, and be fastened on the back seat of ultrasonic generator by hold-down nut, ensureing under fastening prerequisite, need suitable tightness to adapt to the normal work of ultrasonic generator, pad, spring shim and hold-down nut adopt stainless steel material.
Described air volume regulating valve adopts magnetic valve, controls aperture by external circuits.
Described shower nozzle valve, spray boom and back seat all adopt LY12 aluminum alloy materials to make.
Described wire adopts insulated electric conductor, and after importing piezoelectric chip, exposed part insulating cement seals.
Described shower nozzle valve is threaded with spray boom, can regulate the gap with spray boom by turn shower nozzle valve.
Described bracing or strutting arrangement is plate-like round platform.
The present invention is simply rational in infrastructure, is applied in the middle of spraying apparatus by ultrasonic generator and high voltage electrostatic device, on the one hand, improves drop fogging degree, and on the other hand, the principle of application Electrostatic Absorption, improves the adsorption capacity of liquid.The combination of two technology; substantially increase crop to medicine and nutrient absorption; reduce drug waste; improve spray effect; have that structure is simple, easy to operate, safe and reliable simultaneously, mist flow and apart from the feature such as adjustable, significant for the quality improving agriculture and forestry spraying protection operation.
During work, on the one hand, electric current passes in ultrasonic generator, and will be produced the vibration of a hyperfrequency by ultrasonic generator, the effect of this vibration will act on middle spray boom, and produces the vibration of amplitude peak at middle spray boom top end.On the other hand, electric current passes into the high-pressure electrostatic that low-voltage DC is become nearly 20,000 by HV generator, grants in liquid, make liquid charged by the electrode inserting middle spray boom by electric current.Air-flow is flow on shower nozzle valve by outside feeder.Now when charged liquid flow through middle spray boom flow to middle spray boom top end time, it will be subject to the effect of middle spray boom sonic oscillation and from percussion shower nozzle valve spraying into air-flow simultaneously, charged liquid is atomized significantly and has possessed and the speed spraying into air-flow and be close under double action, and better expanding is to crop belts and be attached on crop.The speed of drop fogging degree and droplet ejection can be regulated respectively by the screw-in depth of adjustment shower nozzle valve on middle spray boom and adjustment air volume regulating valve.
The principle of ultrasonic generator realizes ultrasonic generation by the inverse pressure effect of piezoelectric ceramics.After energising, voltage short pulse will act on piezoelectric chip the two poles of the earth by wire, and due to inverse pressure effect, generation elastic deformation is produced elastic oscillation by wafer.Required ultrasonic wave can be obtained by selecting suitable piezoelectric ceramic thickness.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is ultrasonic generator partial enlargement structural representation of the present invention.
In figure: 1, shower nozzle, 2, ultrasonic generator, 3, insulation rubber cushion, 4, air volume regulating valve, 5, fastener, 6, shower nozzle valve, 7, middle spray boom, 8, piezoelectric chip, 9, wire, 10, back seat, 11, piezoelectric ceramic piece, 12, electrode slice, 13, pad, 14, spring shim, 15, hold-down nut, 16, insulating cement, 17, HV generator, 18, electrode.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
As Fig. 1, shown in Fig. 2, a kind of ultrasonic-strength static nozzle, comprise the spray boom that axle center is processed with fine liquid runner, ultrasonic generator, shower nozzle valve, HV generator, shower nozzle valve arranges to be enclosed in and forms shower nozzle in spray boom end, bracing or strutting arrangement is provided with in the middle part of described spray boom, ultrasonic generator, HV generator by fastener be pressed abd fixed on bracing or strutting arrangement away from a side of shower nozzle, described ultrasonic generator is provided with piezoelectric chip, back seat and wire, wire is connected on piezoelectric chip, back seat is positioned at piezoelectric chip one end and contacts with described HV generator, described piezoelectric chip is provided with piezoelectric ceramic piece, electrode slice, electrode slice adopts argent to be plated in the tow sides of piezoelectric ceramic piece respectively as conductive material, after energising, voltage short pulse will act on piezoelectric chip the two poles of the earth by wire, generation elastic deformation is produced elastic oscillation by piezoelectric chip, HV generator is provided with the flow channel for liquids that electrode 18 connects spray boom axle center, high-pressure electrostatic is applied on the liquid by spray boom flow channel for liquids by HV generator.
Ultrasonic generator, HV generator core are provided with the through hole adapted with described spray boom, the piezoelectric chip of ultrasonic generator and back seat and spray boom contact portion installing insulating rubber cushion, the position uniform application insulating cement of corresponding piezoelectric chip on the bar wall of spray boom.Piezoelectric ceramic piece is flat circle tray type structure, and piezoelectric ceramic piece and back seat core are provided with the through hole adapted with described spray boom.Shower nozzle valve is threaded with spray boom, and shower nozzle valve 6 inner contact place is processed with closely-pitched internal thread, is connected with the fine thread on spray boom 7 effect playing sealing, can regulate the gap with middle spray boom 7 by turn shower nozzle valve 6.Shower nozzle valve 6 is provided with air volume regulating valve 4, air volume regulating valve adopts magnetic valve, is controlled the aperture of air volume regulating valve 4 by external circuits, regulates the pressure size of external feeder to change the pressure passing into gas, adjustment throughput.
Fastener comprises pad, spring shim and hold-down nut, described spray boom is provided with screw thread away from the end of shower nozzle, pad, spring shim, hold-down nut are successively set on spray boom end, by the fastening ultrasonic generator of hold-down nut, HV generator 17 on bracing or strutting arrangement, ensureing under fastening prerequisite, need suitable tightness to adapt to the normal work of ultrasonic generator, pad, spring shim and hold-down nut adopt stainless steel material.Shower nozzle valve, spray boom and back seat all adopt LY12 aluminum alloy materials to make.
Ultrasonic generator realizes ultrasonic generation by the inverse pressure effect of piezoelectric ceramics, and when after energising, voltage short pulse will act on piezoelectric chip the two poles of the earth by wire, and generation elastic deformation is produced elastic oscillation by wafer.Required ultrasonic wave can be obtained by selecting suitable piezoelectric ceramic thickness.High-pressure electrostatic is applied on the liquid by spray boom flow channel for liquids (in liquid) by HV generator.
A kind of ultrasonic-strength static nozzle, electric current passes in ultrasonic generator, and will be produced the vibration of a hyperfrequency by ultrasonic generator, the effect of this vibration will act on middle spray boom, and produces the vibration of amplitude peak at middle spray boom top end.Outside feeder flow into shower nozzle valve overdraught and flow to middle spray boom top end liquid stream and be combined, liquid stream will be subject to the effect of middle spray boom sonic oscillation and from percussion shower nozzle valve spraying into air-flow simultaneously, the liquid of static electrification is atomized significantly and has possessed and sprayed into the speed that air-flow is close and spray under double action, and better expanding is to crop belts and be attached on crop.The speed of drop fogging degree and droplet ejection can be regulated respectively by the screw-in depth of adjustment shower nozzle valve on middle spray boom and adjustment air volume regulating valve.
Claims (10)
1. ultrasonic-strength static nozzle, comprise the spray boom that axle center is processed with fine liquid runner, it is characterized in that, be provided with ultrasonic generator, shower nozzle valve, HV generator, shower nozzle valve arranges to be enclosed in and forms shower nozzle in spray boom end, bracing or strutting arrangement is provided with in the middle part of described spray boom, ultrasonic generator, HV generator by fastener be pressed abd fixed on bracing or strutting arrangement away from a side of shower nozzle, described ultrasonic generator is provided with piezoelectric chip, back seat and wire, wire is connected on piezoelectric chip, back seat is positioned at piezoelectric chip one end and contacts with described HV generator, described piezoelectric chip is provided with piezoelectric ceramic piece, electrode slice, electrode slice adopts argent to be plated in the tow sides of piezoelectric ceramic piece respectively as conductive material, voltage short pulse will act on piezoelectric chip the two poles of the earth by wire, generation elastic deformation is produced elastic oscillation by piezoelectric chip, described HV generator is provided with the flow channel for liquids that electrode connects spray boom axle center, high-pressure electrostatic is applied on the liquid by spray boom flow channel for liquids by HV generator.
2. one according to claim 1 ultrasonic-strength static nozzle, it is characterized in that, described ultrasonic generator core is provided with the through hole adapted with described spray boom, the piezoelectric chip of ultrasonic generator and back seat and spray boom contact portion installing insulating rubber cushion, the position uniform application insulating cement of corresponding piezoelectric chip on the bar wall of spray boom.
3. one according to claim 1 ultrasonic-strength static nozzle, it is characterized in that, described piezoelectric ceramic piece is flat circle tray type structure.
4. one according to claim 1 ultrasonic-strength static nozzle, it is characterized in that, described shower nozzle valve is provided with air volume regulating valve, and the change of air volume regulating valve aperture can change the size of throughput, changes by regulating the pressure size of external feeder the pressure passing into gas.
5. one according to claim 1 ultrasonic-strength static nozzle, it is characterized in that, described fastener comprises pad, spring shim and hold-down nut, described spray boom is provided with screw thread away from the end of shower nozzle, pad, spring shim, hold-down nut are successively set on spray boom end, by the fastening ultrasonic generator of hold-down nut, HV generator on bracing or strutting arrangement, ensureing under fastening prerequisite, need suitable tightness to adapt to the normal work of ultrasonic generator, pad, spring shim and hold-down nut adopt stainless steel material.
6. one according to claim 4 ultrasonic-strength static nozzle, it is characterized in that, described air volume regulating valve adopts magnetic valve, controls aperture by external circuits.
7. one according to claim 1 ultrasonic-strength static nozzle, it is characterized in that, described shower nozzle valve, spray boom and back seat all adopt LY12 aluminum alloy materials to make.
8. one according to claim 1 ultrasonic-strength static nozzle, it is characterized in that, described wire adopts insulated electric conductor, and after importing piezoelectric chip, exposed part insulating cement seals.
9. one according to claim 1 ultrasonic-strength static nozzle, it is characterized in that, described shower nozzle valve is threaded with spray boom, can regulate the gap with spray boom by turn shower nozzle valve.
10. one according to claim 1 ultrasonic-strength static nozzle, it is characterized in that, described bracing or strutting arrangement is plate-like round platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048967.1A CN104549813A (en) | 2015-01-30 | 2015-01-30 | Ultrasonic-pneumatic electrostatic nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048967.1A CN104549813A (en) | 2015-01-30 | 2015-01-30 | Ultrasonic-pneumatic electrostatic nozzle |
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| Publication Number | Publication Date |
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| CN104549813A true CN104549813A (en) | 2015-04-29 |
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| CN201510048967.1A Pending CN104549813A (en) | 2015-01-30 | 2015-01-30 | Ultrasonic-pneumatic electrostatic nozzle |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642454A (en) * | 2015-12-31 | 2016-06-08 | 东北大学 | Spray nozzle used for vacuum web spray coating |
| WO2017166350A1 (en) * | 2016-04-01 | 2017-10-05 | 江苏大学 | Low frequency electrostatic ultrasonic atomising nozzle |
| CN108889529A (en) * | 2018-08-08 | 2018-11-27 | 扬州大学 | A kind of high-pressure electrostatic ultrasonic intelligent robot spray apparatus |
| CN109821694A (en) * | 2019-02-28 | 2019-05-31 | 江苏大学 | A kind of intelligent piezo list droplet generator and its method |
| CN110821432A (en) * | 2019-10-24 | 2020-02-21 | 中国石油大学(华东) | Pulse discharge switch structure for downhole operation |
| CN110918355A (en) * | 2019-10-30 | 2020-03-27 | 福之匠精工科技(昆山)有限公司 | Piezoelectric precision spraying device |
| CN111346751A (en) * | 2020-03-19 | 2020-06-30 | 江苏大学 | Magnetoelectric low-voltage electrostatic ultrasonic atomization spray head |
| CN111822165A (en) * | 2020-06-09 | 2020-10-27 | 江苏大学 | Electrostatic sprayer suitable for sunlight greenhouse |
| CN114226092A (en) * | 2021-12-16 | 2022-03-25 | 蒋恒 | Glue coating device and using method thereof |
| CN114377897A (en) * | 2022-01-26 | 2022-04-22 | 北京航空航天大学 | Ultrasonic spraying system |
| CN114618736A (en) * | 2022-01-26 | 2022-06-14 | 北京航空航天大学 | Ultrasonic spraying device and ultrasonic spraying system |
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| CN102861693A (en) * | 2012-10-15 | 2013-01-09 | 哈尔滨工业大学 | Piezoelectric micro-spraying device based on longitudinal vibration sandwich transducer |
| CN103567106A (en) * | 2012-08-10 | 2014-02-12 | 苏州宏久航空防热材料科技有限公司 | Ultrasonic atomizing device and atomizing method for liquid-containing binder for glass cotton |
| CN203659796U (en) * | 2013-12-24 | 2014-06-18 | 苏州市奥普斯等离子体科技有限公司 | Ultrasonic atomization plasma processing device |
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| DE4328088B4 (en) * | 1993-08-20 | 2005-05-25 | Artur Prof. Dr. Goldschmidt | Process for coating workpieces with organic coating materials |
| JP2005254026A (en) * | 1994-03-25 | 2005-09-22 | Astrazeneca Uk Ltd | Spray device for administering liquid ophthalmic formulation to the eye |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642454A (en) * | 2015-12-31 | 2016-06-08 | 东北大学 | Spray nozzle used for vacuum web spray coating |
| US10610880B2 (en) | 2016-04-01 | 2020-04-07 | Jiangsu University | Low frequency electrostatic ultrasonic atomising nozzle |
| WO2017166350A1 (en) * | 2016-04-01 | 2017-10-05 | 江苏大学 | Low frequency electrostatic ultrasonic atomising nozzle |
| CN108889529A (en) * | 2018-08-08 | 2018-11-27 | 扬州大学 | A kind of high-pressure electrostatic ultrasonic intelligent robot spray apparatus |
| CN109821694A (en) * | 2019-02-28 | 2019-05-31 | 江苏大学 | A kind of intelligent piezo list droplet generator and its method |
| CN110821432A (en) * | 2019-10-24 | 2020-02-21 | 中国石油大学(华东) | Pulse discharge switch structure for downhole operation |
| CN110918355A (en) * | 2019-10-30 | 2020-03-27 | 福之匠精工科技(昆山)有限公司 | Piezoelectric precision spraying device |
| CN111346751A (en) * | 2020-03-19 | 2020-06-30 | 江苏大学 | Magnetoelectric low-voltage electrostatic ultrasonic atomization spray head |
| CN111822165A (en) * | 2020-06-09 | 2020-10-27 | 江苏大学 | Electrostatic sprayer suitable for sunlight greenhouse |
| CN114226092A (en) * | 2021-12-16 | 2022-03-25 | 蒋恒 | Glue coating device and using method thereof |
| CN114377897A (en) * | 2022-01-26 | 2022-04-22 | 北京航空航天大学 | Ultrasonic spraying system |
| CN114618736A (en) * | 2022-01-26 | 2022-06-14 | 北京航空航天大学 | Ultrasonic spraying device and ultrasonic spraying system |
| CN114377897B (en) * | 2022-01-26 | 2023-02-28 | 北京航空航天大学 | Ultrasonic spraying system |
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Application publication date: 20150429 |