CN103406215A - Double-elliptic double-hole nozzle - Google Patents
Double-elliptic double-hole nozzle Download PDFInfo
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- CN103406215A CN103406215A CN2013103028818A CN201310302881A CN103406215A CN 103406215 A CN103406215 A CN 103406215A CN 2013103028818 A CN2013103028818 A CN 2013103028818A CN 201310302881 A CN201310302881 A CN 201310302881A CN 103406215 A CN103406215 A CN 103406215A
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Abstract
A double-elliptic double-hole nozzle is composed of a sprayer and a spraying piece connected to the sprayer. The spraying piece is perpendicular to the direction of spraying, and a thread is formed in the sprayer and is used for connecting a nozzle body and a spraying gun. Two spraying holes which are separated form each other are formed in the center of the spraying piece. The shapes of the cross sections, in the spraying direction, of the spraying holes are elliptic, the long axes of the two ellipses are located in the spraying direction and are parallel to each other, and the short axes of the two ellipses are located on the same straight line. The shapes of the cross sections, in the direction perpendicular to the spraying direction, of the spraying holes are elliptic, the long axes of the two ellipses are parallel to each other, and the short axes of the two ellipses are located on the same straight line.
Description
Technical field:
The present invention relates to a kind of bielliptic(al) type diplopore nozzle, this nozzle is mainly used in electric spray gun.
Background technology:
The electric spray gun used in existing market is all generally to adopt single-hole nozzle, and namely liquid is directly sprayed by the single hole outlet after by spray core, accelerating, and the shape of spout mostly is cylindrical.Although this mode can reach the basic instructions for use of spray gun, when spray area is larger, when spraying is had relatively high expectations, be difficult to reach the requirement of expection.Because single hole sprays, only have a core fluerics, projected area obviously reduces, and the design of columniform spray orifice, is unfavorable for the secondary-atomizing of liquid, and spray effect is not very desirable, and then causes the surface quality sprayed bad.
Summary of the invention:
In order to overcome the deficiency of above single-hole nozzle spray gun, the invention provides the bielliptic(al) type diplopore nozzle that a kind of atomizing effect is good, atomizing of liquids is concentrated, projected area is large.
Bielliptic(al) type diplopore nozzle, by shower nozzle and the spray sheet be connected on shower nozzle, formed, described spray sheet is perpendicular to the injection direction setting, on described shower nozzle, have screw thread, be used to connecting nozzle and spray gun, it is characterized in that: in the center of spray sheet, have two spray orifices spaced apart from each other, described spray orifice is all oval along the shape of the cross section of injection direction, and the major axis of two ellipses is all along injection direction and be parallel to each other, and minor axis is on same straight line; Described spray orifice is all oval along the shape of the cross section perpendicular to injection direction, and the major axis of two ellipses is parallel to each other, and minor axis is on same straight line.
Bielliptic(al) type diplopore nozzle in the present invention, by the integral body that shower nozzle and spray sheet form, has screw thread on shower nozzle, be used to connecting nozzle and spray gun, in the center of spray sheet, separated by a distance, has two bielliptic(al) spray orifices.In the cross section perpendicular to injection direction, be namely oval, be parallel to simultaneously the cross section of injection direction also for oval.The elliptic cross-section of vertical injection direction has guaranteed that the shape that liquid sprays is no longer divergent shape, but ejects in more concentrated mode, is conducive to like this improve the surface quality of spraying.And the ellipse of both direction combines, just formed the cavity of a similar olive ball-type, liquid, through in the process of this elliposoidal cavity, has carried out again once accelerating and atomization, has so just further improved the quality of atomization.In addition, the setting of two spray orifices, overcome the defect that original single-hole nozzle only has a core fluerics, increased the core fluerics, thereby increased the area sprayed, and for large-area spraying work, played good effect, improved the efficiency of work.And the phase mutual interference of two spray orifices has effectively been avoided in the reasonable setting of distance between two spray orifices, the raising of jet quality is played a significant role.
Advantage of the present invention is: by the increase of jet expansion, increase the core fluerics of nozzle, and the jet orifice structure due to the bielliptic(al) type, make liquid be the fan-shaped ejection than minimal thickness, so both increased projected area, improved again the centrality of ejection liquid, in addition, axial oval structure and disciform export structure radially allow liquid through atomization again after nozzle, have further improved the effect of atomization, have improved the coating quality of spray gun.
The accompanying drawing explanation
Fig. 1 is the nozzle-integrated figure of bielliptic(al) type diplopore of the present invention
Fig. 2 is front view of the present invention
Fig. 3 is top cross-sectional view of the present invention
Fig. 4 is single-hole nozzle jet flow field areal map
Fig. 5 is bielliptic(al) type diplopore injection stream flow field areal map
Fig. 6 is the velocity contour that single-hole nozzle sprays
Fig. 7 is the velocity contour of bielliptic(al) type diplopore nozzle ejection
The specific embodiment
With reference to accompanying drawing;
Bielliptic(al) type diplopore nozzle, be comprised of shower nozzle 1 and the spray sheet 2 be connected on shower nozzle 1, and described spray sheet 2, perpendicular to the injection direction setting, has screw thread 3 on described shower nozzle 1, be used to connecting nozzle and spray gun.Center at spray sheet 2, have two spray orifices 4 spaced apart from each other, and the shape of the cross section along injection direction of described spray orifice 4 is all oval, and the major axis of two ellipses 6 is all along injection direction and be parallel to each other, and minor axis is on same straight line; Described spray orifice 4 is all oval along the shape of the cross section perpendicular to injection direction, and the major axis of two ellipses 5 is parallel to each other, and minor axis is on same straight line.
As seen from Figure 1, in this invention, bielliptic(al) type diplopore nozzle is comprised of shower nozzle 1 and spray sheet 2, on shower nozzle, has screw thread 3, as shown in Figure 3, be used to connecting shower nozzle and spray gun ，Pen Pian center, is provided with in a distance the spray orifice 4 of two bielliptic(al) types.
The spray orifice 4 sprayed as seen on sheet by Fig. 2 and Fig. 3 is ellipse in front view direction and top view direction, and two oval-shaped major axis of front view (shown in Figure 2) direction are parallel to each other, the oval-shaped major axis of top view (shown in Figure 3) direction is parallel with injection direction.Such advantage is: 1. the ellipse 5 of front view direction can guarantee that liquid process spray orifice, afterwards with the fan-shaped ejection than minimal thickness, has guaranteed the centrality of spraying like this, has overcome the defect that nozzle ejection commonly used is dispersed, and is conducive to improve the uniformity of spraying.2. the ellipse 6 of top view direction combines with the ellipse 5 of front view direction, just formed the cavity of a similar olive ball-type, after liquid enters this cavity, liquid has been carried out to the secondary acceleration, liquid velocity is further improved, and when liquid is sprayed by cavity, again liquid has been carried out to secondary-atomizing, improved the effect of atomization, and then improved the quality of spraying.
By the double-core fluerics 7 of Fig. 4 and visible two the bielliptic(al) type spray orifices 4 of Fig. 5, overcome the defect that single-hole nozzle only has a core fluerics 8.And, by the distance 9 between two spray orifices rationally is set, can overcome again influencing each other between the double-core fluerics, and so both guaranteed to spray the increase of core fluerics, increased the area sprayed, guaranteed again the quality of jet.Raising to the large tracts of land ejection efficiency plays a good role.
The jet velocity of single-hole nozzle commonly used distributes very at random as seen from Figure 6, velocity magnitude is distributed to 27m/s from 10m/s, and it is quite inhomogeneous to distribute, inconsistent because of velocity magnitude after the liquid ejection like this, cause the variable thickness sprayed to cause, thereby cause the effect sprayed very inhomogeneous.And the distribution of the jet velocity of bielliptic(al) type diplopore nozzle shown in Figure 7 is very concentrated, velocity amplitude is distributed in 25m/s in the so very little scope of 27m/s, guaranteed that like this liquid can eject with the speed of relatively concentrating, and then guaranteed the consistent of coating thickness, also just guaranteed the uniformity of spraying.The comparison of Fig. 6 and Fig. 7, obviously can find out bielliptic(al) type diplopore nozzle can be effectively the quality of raising spraying.
Claims (1)
1. bielliptic(al) type diplopore nozzle, by shower nozzle and the spray sheet be connected on shower nozzle, formed, described spray sheet is perpendicular to the injection direction setting, on shower nozzle, have screw thread, be used to connecting nozzle and spray gun, it is characterized in that: in the center of spray sheet, have two spray orifices spaced apart from each other, spray orifice is all oval along the shape of cross section of injection direction, and the major axis of two ellipses is all along injection direction and be parallel to each other, and minor axis is on same straight line; Spray orifice is along being all oval perpendicular to the shape of cross section of injection direction, and the major axis of two ellipses is parallel to each other, and minor axis is on same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103028818A CN103406215A (en) | 2013-07-15 | 2013-07-15 | Double-elliptic double-hole nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103028818A CN103406215A (en) | 2013-07-15 | 2013-07-15 | Double-elliptic double-hole nozzle |
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|---|---|
| CN103406215A true CN103406215A (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103028818A Pending CN103406215A (en) | 2013-07-15 | 2013-07-15 | Double-elliptic double-hole nozzle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353566A (en) * | 2014-10-31 | 2015-02-18 | 嘉善县康民实业有限公司 | Water spray equipment for textile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3220478A1 (en) * | 1982-05-29 | 1983-12-01 | Fried. Krupp Gmbh, 4300 Essen | Nozzle for the spraying of liquid spray material |
| JPS59169555A (en) * | 1983-03-15 | 1984-09-25 | Kyoritsu Gokin Seisakusho:Kk | Spray nozzle |
| US4567934A (en) * | 1983-02-28 | 1986-02-04 | Kabushiki Kaisha Kobe Seiko Sho | Cooling mechanism for use in continuous metal casting |
| US5636796A (en) * | 1994-03-03 | 1997-06-10 | Nippondenso Co., Ltd. | Fluid injection nozzle |
| CN1636635A (en) * | 2003-12-22 | 2005-07-13 | 喷气技术株式会社 | Nozzle of ultra high pressure liquid cleaning dielectric for deburring device |
| US20060071091A1 (en) * | 2004-10-04 | 2006-04-06 | Ratnik H R | Snow-gun |
-
2013
- 2013-07-15 CN CN2013103028818A patent/CN103406215A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3220478A1 (en) * | 1982-05-29 | 1983-12-01 | Fried. Krupp Gmbh, 4300 Essen | Nozzle for the spraying of liquid spray material |
| US4567934A (en) * | 1983-02-28 | 1986-02-04 | Kabushiki Kaisha Kobe Seiko Sho | Cooling mechanism for use in continuous metal casting |
| JPS59169555A (en) * | 1983-03-15 | 1984-09-25 | Kyoritsu Gokin Seisakusho:Kk | Spray nozzle |
| US5636796A (en) * | 1994-03-03 | 1997-06-10 | Nippondenso Co., Ltd. | Fluid injection nozzle |
| CN1636635A (en) * | 2003-12-22 | 2005-07-13 | 喷气技术株式会社 | Nozzle of ultra high pressure liquid cleaning dielectric for deburring device |
| US20060071091A1 (en) * | 2004-10-04 | 2006-04-06 | Ratnik H R | Snow-gun |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353566A (en) * | 2014-10-31 | 2015-02-18 | 嘉善县康民实业有限公司 | Water spray equipment for textile |
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Application publication date: 20131127 |