CN203408808U - Double elliptical double hole type nozzle - Google Patents
Double elliptical double hole type nozzle Download PDFInfo
- Publication number
- CN203408808U CN203408808U CN201320421189.2U CN201320421189U CN203408808U CN 203408808 U CN203408808 U CN 203408808U CN 201320421189 U CN201320421189 U CN 201320421189U CN 203408808 U CN203408808 U CN 203408808U
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- spraying
- nozzle
- spray
- elliptical
- double
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Abstract
The utility model discloses a double elliptical double hole type nozzle which consists of a sprayer and a spraying piece, wherein the spraying piece is perpendicular to the spraying direction; a thread is formed in the sprayer and is used for connecting the nozzle and a spray gun; two spaced spraying holes are formed in the central position of the spraying piece; cross sections of the spraying holes along the spraying direction are elliptical; two elliptical long axes are parallel to each other along the spraying direction; short axes are on the same line. The cross sections of the spraying holes perpendicular to the spraying direction are elliptical, the two elliptical long axes are parallel to each other, and the short axes are on the same line.
Description
Technical field:
The utility model relates to a kind of bielliptic(al) type diplopore nozzle, and this nozzle is mainly used in electric spray gun.
Background technology:
The electric spray gun using in existing market is all generally to adopt single-hole nozzle, and liquid is directly sprayed by single hole outlet after accelerating by spray core, 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 of spraying bad.
Summary of the invention:
In order to overcome the deficiency of above single-hole nozzle spray gun, the utility model 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 being connected on shower nozzle, formed, described spray sheet is perpendicular to injection direction setting, on described shower nozzle, have screw thread, for 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, the shape of the cross section along injection direction of described spray orifice is all oval, and two oval major axis are 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 two oval major axis are parallel to each other, and minor axis is on same straight line.
The integral body that bielliptic(al) type diplopore nozzle in the utility model is comprised of shower nozzle and spray sheet, has screw thread on shower nozzle, for 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 oval, be parallel to the cross section of injection direction also for oval simultaneously.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, has overcome the defect that original single-hole nozzle only has a core fluerics, has increased core fluerics, thereby has increased the area spraying, and for large-area spraying work, has played good effect, has 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.
The utility model has the advantages that: by the increase of jet expansion, increase the core fluerics of nozzle, and the jet orifice structure due to bielliptic(al) type, make liquid be the fan-shaped ejection compared with 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.
Accompanying drawing explanation
Fig. 1 is the overall diagram of bielliptic(al) type diplopore spray gun of the present utility model
Fig. 2 is the front view of Fig. 1 illustraton of model
Fig. 3 is the top cross-sectional view of Fig. 1 illustraton of model
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, is comprised of shower nozzle 1 and the spray sheet 2 being connected on shower nozzle 1, and described spray sheet 2, perpendicular to injection direction setting, has screw thread 3 on described shower nozzle 1, for connecting nozzle and spray gun.Center at spray sheet 2, has 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 utility model, bielliptic(al) type diplopore nozzle is comprised of shower nozzle 1 and spray sheet 2, has screw thread 3 on shower nozzle, as shown in Figure 3, is provided with in a distance the spray orifice 4 of two bielliptic(al) types for connecting shower nozzle and spray gun ，Pen Pian center.
The spray orifice 4 being 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 Fig. 2) direction are parallel to each other, the oval-shaped major axis of top view (shown in Fig. 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 compared with the fan-shaped ejection of minimal thickness, has guaranteed the centrality of spraying like this, has overcome the defect that conventional nozzle ejection is dispersed, and is conducive to improve the uniformity of spraying.2. the ellipse 6 of top view direction and the ellipse 5 of front view direction combine, just formed the cavity of a similar olive ball-type, after liquid enters this cavity, liquid has been carried out to 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 two distances 9 between spray orifice are rationally set, can overcome again influencing each other between double-core fluerics, and so both guaranteed to spray the increase of core fluerics, increased the area spraying, guaranteed again the quality of jet.Raising to large area ejection efficiency plays a good role.
The jet velocity of conventional single-hole nozzle 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, like this after liquid sprays because velocity magnitude is inconsistent, cause the variable thickness of spraying to cause, thereby cause the effect of spraying very inhomogeneous.And the distribution of the jet velocity of the bielliptic(al) type diplopore nozzle shown in Fig. 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 relatively concentrated speed, 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 being connected on shower nozzle, formed, described spray sheet is perpendicular to injection direction setting, on described shower nozzle, have screw thread, for 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, the shape of the cross section along injection direction of described spray orifice is all oval, and two oval major axis are 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 two oval major axis are parallel to each other, and minor axis is on same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320421189.2U CN203408808U (en) | 2013-07-15 | 2013-07-15 | Double elliptical double hole type nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320421189.2U CN203408808U (en) | 2013-07-15 | 2013-07-15 | Double elliptical double hole type nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203408808U true CN203408808U (en) | 2014-01-29 |
Family
ID=49971736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320421189.2U Expired - Fee Related CN203408808U (en) | 2013-07-15 | 2013-07-15 | Double elliptical double hole type nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203408808U (en) |
-
2013
- 2013-07-15 CN CN201320421189.2U patent/CN203408808U/en not_active Expired - Fee Related
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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: 20140129 Termination date: 20170715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |