CN201235323Y - Electrode embedded electrostatic nozzle for aviation - Google Patents
Electrode embedded electrostatic nozzle for aviation Download PDFInfo
- Publication number
- CN201235323Y CN201235323Y CNU2008200146817U CN200820014681U CN201235323Y CN 201235323 Y CN201235323 Y CN 201235323Y CN U2008200146817 U CNU2008200146817 U CN U2008200146817U CN 200820014681 U CN200820014681 U CN 200820014681U CN 201235323 Y CN201235323 Y CN 201235323Y
- Authority
- CN
- China
- Prior art keywords
- electrode
- nozzle
- liquid
- pressure
- regulating valve
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Electrostatic Spraying Apparatus (AREA)
Abstract
The utility model relates to a second generation aerial electrostatic spray-head, which is applied to an agricultural aircraft. The spray-head comprises an electrode (213), an electrode bracing frame (23), a nozzle (24), a liquid supplying body (26), a horizontal liquid supplying tube (212) and a pressure adjustable valve (28), wherein the nozzle (24) is installed in an axes tube of the electrode bracing frame (23) through external threads and is assembled into a wheel-formed integral body with the electrode (213) and the electrode bracing frame (23), a filter (25) is installed in the inner cavity of the liquid supplying body (26), a liquid sealing rod (27) is arranged behind the filter (25), a valve seat spring (29) is installed on a rear seat of the liquid sealing rod (27), a pressure regulating valve (8) is installed on the rear portion of the liquid supplying body (26), and the valve seat spring (29) is installed in the pressure regulating valve (28). The spray-head is characterized in that stable and uniform electrostatic electric field can be formed on the periphery of the spray-head, and the damages to the electrostatic spraying due to the short circuit between the spray-head and the electrode caused by sparks are avoided.
Description
Technical field
The utility model relates to a kind of static nozzle, especially relates to a kind of improved aero static nozzle that is applied on the agricultural aircraft.
Background technology
Existing aviation static nozzle, as shown in Figure 1, one of its critical component tubular metal electrode 17 is fixing, exposed by a rod support arm 10, hang and be installed in spray nozzle front end, facts have proved, the fixed form of this structure and electrode has following weak point: separate with nozzle owing to electrode (1), when assembling, be difficult to make tube electrode and nozzle to keep same axis to install on the technology, promptly be difficult to make nozzle to become a concentric circles at cross section with electrode, and concerning electrostatic spray, this deviation is definitely unallowed; (2) even assembling the time does not have deviation, but the static nozzle and the electrode supporting arm overwhelming majority are made by insulating materials, these materials are comparatively responsive, yielding to variations in temperature, so after the assembling, tend to make tube electrode offset nozzle center every a period of time, after this just made that electrode adds electrostatic high-pressure, the space between electrode and nozzle can not produce uniform electric field, easily causes sparking, cause the short circuit between nozzle and the electrode when serious, destroy normal electrostatic spray.
The utility model content
The technical problems to be solved in the utility model provides the embedded aviation static nozzle of a kind of electrode, and this static nozzle can guarantee to produce uniform electrostatic field after electrode adds high-pressure electrostatic, guarantees normal electrostatic spray, and sparking and short circuit accident can not take place.
In order to solve the problem that prior art exists, the technical solution adopted in the utility model is:
The embedded aviation static nozzle of electrode includes electrode, electrode holder, nozzle, for liquid, horizontal feed pipe and pressure-regulating valve, laterally feed pipe be connected for liquid, nozzle is installed in the axle center pipe of electrode holder by external screw thread, with electrode, the electrode holder assembling becomes a colyliform integral body, this colyliform integral body is installed in for liquid front end by internal and external threads, inner chamber is equipped with one piece of filter for liquid, after the filter is the sealing liquid bar, sealing liquid bar back seat is equipped with seating spring, pressure-regulating valve is installed in rear portion for liquid, and seating spring is housed in the pressure-regulating valve.
The spray orifice of described nozzle is a conical structure, and with the spray pattern of guiding gutter formation hollow cone, the interior angle of hollow cone is 60 °～90 °.
Described electrode is inlaid in the inwall of the hollow edged electrode bracing frame that high pressure resistant engineering plastics make, and nozzle is installed in the axle center pipe of electrode holder by external screw thread; Electrode is a tubulose, and diameter is 30～45 millimeters, and the radial clearance of electrode inner wall and nozzle outer peripheral edges is 15～25 millimeters.
The embedded aviation static nozzle of electrode includes electrode, electrode holder, nozzle, for liquid, pressure-regulating valve, horizontal feed pipe and three-way connection, one end of three-way connection by joint with aboard horizontal jet pipe is installed is connected and communicates, two ends respectively connect a horizontal feed pipe in addition, laterally feed pipe be connected for liquid, nozzle is installed in the axle center pipe of electrode holder by external screw thread, with electrode, the electrode holder assembling becomes a colyliform integral body, this colyliform integral body is installed in for liquid front end by internal and external threads, inner chamber is equipped with one piece of filter for liquid, after the filter is the sealing liquid bar, sealing liquid bar back seat is equipped with seating spring, pressure-regulating valve is installed in rear portion for liquid, and seating spring is housed in the pressure-regulating valve.
The center distance of described two nozzles is 100～200 millimeters.
Advantage and the effect that the utlity model has are:
1, the embedded aviation static nozzle of the utility model electrode has overcome the shortcoming that tube electrode is difficult for and nozzle keeps same axis to install when assembling on the existing electrode external static nozzle technology, by the counterpart screw thread nozzle and tube electrode is fixedly mounted on the same axle center easily during installation;
2, the electrode of the embedded aviation static nozzle of the utility model electrode, electrode holder and nozzle combination are mounted to one " wheeled " integral body, nozzle is positioned at the axle center of tube electrode all the time, can be because of extreme changes of temperature generation deformation, produce uniform static electric field in the nozzle periphery after making electrode add high pressure like this, thereby make the droplet of nozzle ejection evenly charged, reach desirable electrostatic atomization effect;
3, the embedded aviation static nozzle of the utility model electrode is because nozzle is positioned at the center of circle of tube electrode, when electrode adds high-pressure work like this, form stable and static electric field uniformly in the nozzle periphery, can not produce spark and make and be short-circuited between nozzle and the electrode and destroy electrostatic spray.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
Fig. 1 is the structure cutaway view of existing electrode external twin-jet nozzle static nozzle;
Fig. 2 is the cutaway view of first kind of embodiment of the embedded aviation static nozzle of the utility model electrode;
Fig. 3 is the front view of second kind of embodiment of the embedded aviation static nozzle of the utility model electrode;
Fig. 4 is the cutaway view of second kind of embodiment of the embedded aviation static nozzle of the utility model electrode.
Wherein: threeway tube head 1; Communicating pipe 2; Check-valves 3; Spring base 4; Spring 5; Diaphragm 6; Valve seat 7; Nozzle body 8; Electrode supporting bar hold-down screw 9; Electrode supporting bar 10; Cross filter core 11; Nozzle nut 12; Cross filter cartridge seat 13; Nozzle precursor 14; Cyclone 15; Spray nozzle sheet 16; Metal electrode 17; Rivet 18; Electrode hold-down nut 19; Electrode terminal 21,22; Electrode holder 23; Nozzle 24; Filter 25; For liquid 26; Sealing liquid bar 27; Pressure-regulating valve 28; Seating spring 29; Sealing ring 210; Interface is reinforced nut 211; Horizontal feed pipe 212; Electrode 213; Three-way connection 35; Joint 36.
The specific embodiment
Embodiment 1:
As shown in Figure 2 the embedded aviation static nozzle of electrode by hollow edged electrode 213 and electrode holder 23, nozzle 24, for liquid 26, pressure-regulating valve 28 forms.Nozzle 24 is installed in the axle center pipe of tube electrode bracing frame 23 by external screw thread, and have the muscle of three proper width uniform between axle center pipe and electrode holder 23 inwalls 120 ° of circumference, thereby make nozzle 24, electrode 213, electrode holder 23 assemblings become a colyliform integral body, this wheeled integral body is installed in 26 front end for liquid by internal and external threads again; 26 inner chambers are equipped with one piece of filter 25 and a sealing liquid bar 27 for liquid.After the filter 25 is sealing liquid bar 27, and sealing liquid bar 27 back seats are equipped with seating spring 29, and the adjusting of pressure realizes by manual rotational pressure control valve 28; Pressure-regulating valve 28 is installed in 26 rear portion for liquid, plays and regulates nozzle spray pressure and drip-proof effect, and seating spring 29 is housed in the pressure-regulating valve 28.Liquid enters 26 inner chambers for liquid by horizontal feed pipe 212 under certain operating pressure, enter nozzle 24 after filtering through filter 25 by sealing liquid bar 27 and be the ejection of conical hollow mist body.
The little spray orifice of nozzle 24 is a conical structure, can provide the spray pattern of a hollow cone with guiding gutter.The interior angle of mist body hollow cone is between 60 ° and 90 °, in the time of can making high velocity air flow through shower nozzle droplet is realized shearing and atomizing, high velocity air can be by the acquisition that travels forward of aircraft, this interior angle can be measured in the shower nozzle exit, and this interior angle is along with the viscosity of institute's spraying liquid and air velocity is different and different.The first-selected angle of interior angle is between 70 ° and 80 °, and the too little droplet that causes easily of angle can not fully atomize, and the angle fluid that causes spraying too greatly easily contacts with electrode.0.15～0.3MP
aThe droplet particle size range is 170～80 microns under the pressure.
Nozzle 24, for liquid 26, the material of pressure-regulating valve 28, electrode holder 23 must be high pressure resistant insulation, high strength hard engineering plastics such as polyvinyl chloride, polypropylene, nylon or the pottery good as insulating properties can prevent that inner charged fluid from making shower nozzle charged.The length dimension of shower nozzle is between 90～150 millimeters.
Electrode 213 is columniform, electrode holder 23 also is a tubulose, electrode 213 is inlaid in the inwall of the electrode holder 23 of tubulose, 24 at nozzle is installed in by external screw thread in the axle center pipe of electrode holder 23, be in electrode is included in nozzle, so that electrostatic field is imposed on the spraying droplet, but can not contact with the spraying jet body.Between hollow edged electrode 213 inwalls and nozzle 24 outer peripheral edges enough radial clearances are arranged, can allow lamina air flow to pass through electrode.The selection of optimum axial location and radial clearance should change with physical property, air velocity, rate of flow of fluid, shower nozzle tip and the different of charging voltage of the fluid that sprays, and the radial clearance of hollow edged electrode 213 inwalls and nozzle 24 is 10～25 millimeters.Electrode terminal 21 or 22 can be connected with the plus or minus high-voltage output end of DC high-voltage power supply, the high pressure of additional+(-) 2000～20000 volts, during work, spatial dimension between electrode inner wall and nozzle periphery forms uniform electrostatic high-pressure electric field, make air molecule ionization produce free electron, make droplet moment of nozzle ejection be with electric charge to become charged droplets like this.The material of electrode is a stainless steel, also can adopt other conductive material.Electrode holder 23 adopts absolute high pressure resistant insulation material.
Embodiment 2:
As Fig. 3, the embedded aviation static nozzle of electrode shown in 4 is to be assembled by two horizontal feed pipes 212 and a three-way connection 35 by two identical shower nozzles of structure to form, it includes electrode 213, electrode holder 23, nozzle 24, for liquid 26, pressure-regulating valve 28, horizontal feed pipe 212 and three-way connection 35, one end of three-way connection 35 by joint 36 with aboard horizontal jet pipe is installed is connected and communicates, two ends respectively connect a horizontal feed pipe 212 in addition, each horizontal feed pipe 212 respectively with 26 be connected for liquid, nozzle 24 is installed in the axle center pipe of electrode holder 23 by external screw thread, with electrode 213, electrode holder 23 assemblings become a colyliform integral body, this colyliform integral body is installed in 26 front end for liquid by internal and external threads, 26 inner chambers are equipped with one piece of filter 25 for liquid, after the filter 25 is sealing liquid bar 27, sealing liquid bar 27 back seats are equipped with seating spring 29, pressure-regulating valve 8 is installed in 26 rear portion for liquid, and seating spring 29 is housed in the pressure-regulating valve 28.The center distance of two nozzles 24 is 100～200 millimeters.
Claims (5)
1, the embedded aviation static nozzle of electrode, it is characterized in that including electrode (213), electrode holder (23), nozzle (24), (26) for liquid, horizontal feed pipe (212) and pressure-regulating valve (28), laterally (26) are connected feed pipe (212) with for liquid, nozzle (24) is installed in the axle center pipe of electrode holder (23) by external screw thread, with electrode (213), electrode holder (23) assembling becomes a colyliform integral body, this colyliform integral body is installed in for liquid the front end of (26) by internal and external threads, (26) inner chamber is equipped with one piece of filter (25) for liquid, filter (25) is sealing liquid bar (27) afterwards, sealing liquid bar (27) back seat is equipped with seating spring (29), pressure-regulating valve (8) is installed in for liquid the rear portion of (26), and seating spring (29) is housed in the pressure-regulating valve (28).
2, the embedded aviation static nozzle of electrode according to claim 1, the spray orifice that it is characterized in that described nozzle (24) is a conical structure, with the spray pattern of guiding gutter formation hollow cone, the interior angle of hollow cone is 60 °～90 °.
3, the embedded aviation static nozzle of electrode according to claim 1, it is characterized in that described electrode (213) is inlaid in the inwall of the hollow edged electrode bracing frame (23) that high pressure resistant engineering plastics make, nozzle (24) is installed in the axle center pipe of electrode holder (23) by external screw thread; Electrode (213) is a tubulose, and diameter is 30～45 millimeters, and the radial clearance of electrode (213) inwall and nozzle (24) outer peripheral edges is 15～25 millimeters.
4, the embedded aviation static nozzle of electrode, it is characterized in that including electrode (213), electrode holder (23), nozzle (24), (26) for liquid, pressure-regulating valve (28), horizontal feed pipe (212) and three-way connection (35), one end of three-way connection (35) by joint (36) with aboard horizontal jet pipe is installed is connected and communicates, two ends respectively connect a horizontal feed pipe (212) in addition, (26) are connected each horizontal feed pipe (212) with for liquid respectively, nozzle (24) is installed in the axle center pipe of electrode holder (23) by external screw thread, with electrode (213), electrode holder (23) assembling becomes a colyliform integral body, this colyliform integral body is installed in for liquid the front end of (26) by internal and external threads, (26) inner chamber is equipped with one piece of filter (25) for liquid, filter (25) is sealing liquid bar (27) afterwards, sealing liquid bar (27) back seat is equipped with seating spring (29), pressure-regulating valve (8) is installed in for liquid the rear portion of (26), and seating spring (29) is housed in the pressure-regulating valve (28).
5, according to the embedded aviation static nozzle of the described electrode of claim 4, the center distance that it is characterized in that described two nozzles (24) is 100～200 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200146817U CN201235323Y (en) | 2008-08-08 | 2008-08-08 | Electrode embedded electrostatic nozzle for aviation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200146817U CN201235323Y (en) | 2008-08-08 | 2008-08-08 | Electrode embedded electrostatic nozzle for aviation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201235323Y true CN201235323Y (en) | 2009-05-13 |
Family
ID=40648060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200146817U Expired - Fee Related CN201235323Y (en) | 2008-08-08 | 2008-08-08 | Electrode embedded electrostatic nozzle for aviation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201235323Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102210997A (en) * | 2010-04-08 | 2011-10-12 | 内蒙古科技大学 | Single-particle high-speed drop generator |
| CN104285938A (en) * | 2014-10-29 | 2015-01-21 | 江苏大学 | Aerial electrostatic sprayer charging device |
| CN104588227A (en) * | 2015-03-04 | 2015-05-06 | 南京林业大学 | Fan-shaped atomizing electrostatic spray head |
| CN111054530A (en) * | 2019-12-09 | 2020-04-24 | 江苏大学 | Fan-shaped electrostatic induction atomizing nozzle with automatically adjustable electrode |
-
2008
- 2008-08-08 CN CNU2008200146817U patent/CN201235323Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102210997A (en) * | 2010-04-08 | 2011-10-12 | 内蒙古科技大学 | Single-particle high-speed drop generator |
| CN102210997B (en) * | 2010-04-08 | 2013-05-08 | 内蒙古科技大学 | Single-particle high-speed drop generator |
| CN104285938A (en) * | 2014-10-29 | 2015-01-21 | 江苏大学 | Aerial electrostatic sprayer charging device |
| CN104285938B (en) * | 2014-10-29 | 2016-09-14 | 江苏大学 | A kind of electrostatic nozzle for aviation charge device |
| CN104588227A (en) * | 2015-03-04 | 2015-05-06 | 南京林业大学 | Fan-shaped atomizing electrostatic spray head |
| CN111054530A (en) * | 2019-12-09 | 2020-04-24 | 江苏大学 | Fan-shaped electrostatic induction atomizing nozzle with automatically adjustable electrode |
| CN111054530B (en) * | 2019-12-09 | 2021-08-03 | 江苏大学 | Fan-shaped electrostatic induction atomizing nozzle with automatically adjustable electrode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3746253A (en) | Coating system | |
| CN201235323Y (en) | Electrode embedded electrostatic nozzle for aviation | |
| TWI272130B (en) | Electrostatic coating apparatus | |
| CN203635379U (en) | Multi-electrode charging electrostatic spray head | |
| WO2006016709A1 (en) | Electrostatic coating spray gun and electrostatic coating method | |
| CN209302998U (en) | A kind of target formula atomizer | |
| CN206838339U (en) | A kind of electrostatic nozzle for aviation structure | |
| CN201006215Y (en) | Straight-through vortex liquid atomization injector for fire-fighting | |
| CN201524627U (en) | Spray gun nozzle for intersection-converge spraying outside the spray gun | |
| CN106560253B (en) | Coating gun manufacturing method and coating gun | |
| CN201073624Y (en) | Electrostatic showerhead with double nozzles | |
| CN214288864U (en) | Secondary atomizing spray head | |
| CN212041073U (en) | Composite nozzle | |
| CN206838340U (en) | A kind of electrostatic nozzle for aviation structure | |
| CN201815424U (en) | Electric spray gun | |
| CN201524624U (en) | Gas-liquid two phase coaxial inflow electrostatic atomization nozzle | |
| CN207056838U (en) | A kind of aviation static water-spraying system | |
| CN211273287U (en) | Atomizing nozzle for fire-fighting water mist | |
| CN217725914U (en) | Adjusting sleeve for electrostatic powder spray gun and electrostatic powder spray gun | |
| CN201815423U (en) | Electric spray gun capable of preventing liquid from reflowing | |
| JPS6212429Y2 (en) | ||
| WO2010149197A1 (en) | Nozzle device and spray applicator comprising the same | |
| JPS6212428Y2 (en) | ||
| CN112604837B (en) | Spray head capable of secondary atomization | |
| CN211613109U (en) | Automatic electrostatic spray gun with needle valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20150808 |
|
| EXPY | Termination of patent right or utility model |