CN212284520U - Atomizing nozzle - Google Patents

Atomizing nozzle Download PDF

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Publication number
CN212284520U
CN212284520U CN202021129222.0U CN202021129222U CN212284520U CN 212284520 U CN212284520 U CN 212284520U CN 202021129222 U CN202021129222 U CN 202021129222U CN 212284520 U CN212284520 U CN 212284520U
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gas flow
central
nozzle
outer layer
liquid
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CN202021129222.0U
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Chinese (zh)
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张建辉
陈震林
陈晓生
张帆
赖立怡
黄智�
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Guangzhou University
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Guangzhou University
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Abstract

The utility model provides an atomizing nozzle relates to the nozzle field. The atomizing nozzle comprises a nozzle body, wherein a central gas flow passage, a plurality of inner layer liquid flow passages and a plurality of outer layer gas flow passages are arranged in the nozzle body, the plurality of outer layer gas flow passages are circumferentially arranged at intervals outside the central gas flow passage, and the plurality of inner layer liquid flow passages are circumferentially arranged at intervals at an annular interval between the central gas flow passage and the outer layer gas flow passage; the gas flow directions of the outer layer gas flow channels are obliquely arranged towards the gas flow axis close to the central gas flow channel, the gas flow directions of the outer layer gas flow channels are intersected at the same position on the gas flow axis of the central gas flow channel, and the liquid flow directions of the inner layer liquid flow channels are respectively and crosswise arranged with the gas flow direction of the outer layer gas flow channel. And a plurality of mist is formed at the crossed position, the mist at the plurality of positions is finally converged to form a larger mist mass, the mist mass obtains sufficient power under the action of the airflow jet of the central gas flow passage, and the secondary blowing atomization effect is performed on the mist mass.

Description

Atomizing nozzle
Technical Field
The utility model relates to a nozzle technical field especially relates to an atomizing nozzle.
Background
The atomizing nozzle is a nozzle structure which uniformly mixes liquid and gas into fine droplet mist which can be suspended in air, and is widely applied to scenes of humidifying, cooling, purifying air and the like.
The common atomizing nozzle is designed by the intersection of a single gas flow channel and a single liquid flow channel, the mixing uniformity of gas flow and liquid flow is poor, the size of mist liquid drops generated by the nozzle is inconsistent, and large liquid drops are easy to form and drop. An improved liquid atomizing device was subsequently developed, and a nozzle body including a first gas ejection portion and a second gas ejection portion for ejecting two gas streams, and a liquid passage portion having a liquid flow passage was disclosed; a gas-liquid mixing area portion that atomizes the liquid by causing the gas flow ejected from the first gas ejection portion and the gas flow ejected from the second gas flow ejection portion to collide with the liquid flowing out from the liquid passage portion; and a spray outlet portion for spraying the mist atomized by the gas-liquid mixing area portion to the outside.
The existing improved liquid atomization device is provided with two gas flow channels, the spraying directions of the two gas flow channels are crossed, and the collision blowing effect is formed on liquid, so that the atomization effect on the liquid can be improved, and the liquid drop particles of mist are more uniform and fine. However, the jet power of the gas flow path is mainly used to blow off the liquid, and the mist is formed only in the vicinity of the nozzle outlet, and the effect of strong outward jet cannot be achieved.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide an atomizing nozzle to solve the problem that the mist of the existing atomizing device is formed only near the nozzle outlet and cannot reach the effect of strong outward spraying.
The technical proposal of the atomizing nozzle of the utility model is that:
the atomizing nozzle comprises a nozzle body, wherein a central gas flow passage, a plurality of inner layer liquid flow passages and a plurality of outer layer gas flow passages are arranged in the nozzle body, the outer layer gas flow passages are circumferentially arranged at intervals outside the central gas flow passage, and the inner layer liquid flow passages are circumferentially arranged at intervals at annular intervals between the central gas flow passage and the outer layer gas flow passages;
the gas flow direction of the outer layer gas flow channel is obliquely arranged towards the gas flow axis close to the central gas flow channel, the gas flow directions of the outer layer gas flow channels are intersected at the same position on the gas flow axis of the central gas flow channel, and the liquid flow directions of the inner layer liquid flow channels are respectively and crosswise arranged with the gas flow direction of the outer layer gas flow channel.
Has the advantages that: the liquid flow directions of the inner layer liquid flow channels are respectively arranged in a cross mode with the gas flow direction of the outer layer gas flow channel, the gas flow directions of the outer layer gas flow channels are intersected at the same position on the gas flow axis of the central gas flow channel, the gas flow sprayed out from the outer layer gas flow channel is used for blowing and atomizing the liquid flow discharged from the inner layer liquid flow channel, and a plurality of mist is formed at the cross position of the liquid flow direction of the inner layer liquid flow channel and the gas flow direction of the outer layer gas flow channel; the gas flow sprayed from the outer gas flow channel enables the fog to flow towards the direction of the axis of the gas flow close to the central gas flow channel, and the fog at multiple positions finally converges together to form a larger fog mass; in addition, the airflow of the central gas flow passage has the function of secondary dispersion atomization on the mist mass, so that larger droplets in the mist mass are further dispersed into smaller and more uniform droplets, and the particle size of the atomized droplets is effectively controlled.
Furthermore, the inner layer liquid flow channels and the outer layer gas flow channels are arranged in a concentric circle mode relative to the gas flow axis of the central gas flow channel.
Further, an included angle between the airflow direction of the outer layer gas flow channel and the airflow axis of the central gas flow channel is any angle between 30 degrees and 60 degrees.
Furthermore, a central air cavity is further arranged inside the nozzle body and communicated with the central air channel.
Furthermore, a plurality of outer air cavities are further arranged inside the nozzle body, the outer air cavities are communicated with and arranged on the outer air flow channels, and a plurality of air inlet channels are further respectively arranged on the outer air cavities and are radially arranged.
Further, the outer layer gas flow channel comprises a cylindrical section and a conical outlet section, and the conical outlet section is arranged in a shrinking manner along the gas flow direction of the outer layer gas flow channel; the structure of the central gas flow passage is the same as that of the outer layer gas flow passage.
Furthermore, the nozzle body is also provided with a wedge-shaped sinking groove corresponding to the conical outlet section of the outer-layer gas flow channel, and the bottom surface of the wedge-shaped sinking groove is perpendicular to the gas flow direction of the outer-layer gas flow channel.
Furthermore, the liquid flow direction of the inner layer liquid flow channel extends in parallel to the gas flow axis of the central gas flow channel, and the inner layer liquid flow channels are arranged in a central symmetry mode relative to the gas flow axis of the central gas flow channel.
Furthermore, the inner layer liquid flow passages are circumferentially and uniformly distributed at intervals, and the outer layer gas flow passages are circumferentially and uniformly distributed at intervals and twelve.
Furthermore, the nozzle body is of a hollow round cake structure, a plurality of inner-layer liquid flow pipes penetrate through the nozzle body along the thickness direction, and the inner-layer liquid flow pipes are provided with liquid inlet connectors located on the back side of the nozzle body; the plurality of intake runners are disposed in communication with the outer peripheral wall of the nozzle body.
Drawings
Fig. 1 is a schematic top view of an atomizing nozzle according to an embodiment 1 of the present invention;
FIG. 2 is a schematic cross-sectional view of the atomizing nozzle of FIG. 1 at A-A;
fig. 3 is a schematic cross-sectional view of a nozzle body in embodiment 1 of the atomizing nozzle of the present invention.
In the figure: 1-nozzle body, 10-central gas flow channel, 100-gas flow axis of central gas flow channel, 101-gas outlet of central gas flow channel, 11-inner layer liquid flow channel, 110-liquid flow direction of inner layer liquid flow channel, 12-outer layer gas flow channel, 120-gas flow direction of outer layer gas flow channel, 121-cylindrical section, 122-conical outlet section, 13-central gas cavity, 14-outer layer gas cavity, 15-gas inlet flow channel, 16-wedge sink, 2-inner layer liquid flow tube and 20-liquid inlet joint.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The embodiment 1 of the atomizing nozzle of the present invention, as shown in fig. 1 to 3, includes a nozzle body 1, a central gas flow passage 10, a plurality of inner liquid flow passages 11 and a plurality of outer gas flow passages 12 are provided in the nozzle body 1, the plurality of outer gas flow passages 12 are circumferentially spaced outside the central gas flow passage 10, and the plurality of inner liquid flow passages 11 are circumferentially spaced at an annular space between the central gas flow passage 10 and the outer gas flow passages 12; the gas flow directions 120 of the outer gas flow channels are obliquely arranged towards the gas flow axis 100 close to the central gas flow channel, the gas flow directions 120 of the outer gas flow channels intersect at the same position on the gas flow axis 100 of the central gas flow channel, and the liquid flow directions 110 of the inner liquid flow channels are respectively arranged to intersect with the gas flow directions 120 of the outer gas flow channels.
Respectively arranging the liquid flow directions 110 of the inner layer liquid flow passages and the gas flow directions 120 of the outer layer gas flow passages in a crossed manner, wherein the gas flow directions 120 of the outer layer gas flow passages are intersected at the same position on the gas flow axis 100 of the central gas flow passage, the gas flow sprayed out from the outer layer gas flow passage 12 is used for blowing and atomizing the liquid flow discharged from the inner layer liquid flow passage 11, and a plurality of mist is formed at the crossed position of the liquid flow direction 110 of the inner layer liquid flow passage and the gas flow direction 120 of the outer layer gas flow passage; the gas flow ejected from the outer gas flow passage 12 causes the mist to flow towards the direction of the gas flow axis 100 close to the central gas flow passage, and a plurality of mist is finally gathered together to form a larger mist mass, and the mist mass obtains sufficient power for strong outward ejection under the action of the gas flow ejection of the central gas flow passage 10, thereby achieving the effect of strong mist ejection; in addition, the air flow of the central air flow passage 10 has a secondary dispersion and atomization effect on the mist mass, so that larger liquid drops in the mist mass are further dispersed into smaller and more uniform small liquid drops, and the particle size of the atomized liquid drops is effectively controlled.
In the present embodiment, the inner liquid channels 11 and the outer gas channels 12 are concentrically arranged with respect to the gas flow axis 100 of the central gas channel, and the concentric arrangement ensures that a plurality of mists formed at the intersection of the liquid flow direction 110 of the inner liquid channel and the gas flow direction 120 of the outer gas channel can be accurately collected at the same position of the gas flow axis 100 of the central gas channel, thereby improving the concentration degree and the spraying effect of mist clusters. Also, the flow direction 120 of the outer gas flow channels is at any angle between 30 ° and 60 ° to the flow axis 100 of the center gas flow channel.
Specifically, the included angle between the airflow direction 120 of the outer layer gas flow channel and the airflow axis 100 of the central gas flow channel is 30 °, the airflow ejected from the outer layer gas flow channel 12 has a branch power perpendicular to the airflow axis 100 of the central gas flow channel, the branch power is half of the total power of the airflow ejected from the outer layer gas flow channel 12, the power is used for blowing atomized liquid, and most of other powers drive the mist to move outwards, so that on one hand, the airflow ejected from the outer layer gas flow channel 12 plays a significant role in blowing and atomizing the liquid flow discharged from the inner layer liquid flow channel 11, and on the other hand, the strong outwards ejected mist is ensured.
Wherein, the inside of nozzle body 1 still is equipped with central air cavity 13, and central air cavity 13 intercommunication sets up on central gas flow channel 10. The nozzle body 1 is provided with a plurality of outer air cavities 14 inside, the outer air cavities 14 are communicated with each other and arranged on the outer air flow channels 12, the outer air cavities 14 are provided with air inlet flow channels 15, and the air inlet flow channels 15 are radially arranged. The central air cavity 13 and the outer air cavities 14 are used as buffering spaces for air, so that the incoming air is gathered and buffered, turbulence and disturbance flow in the air are eliminated, then the air is respectively ejected from the central air flow channel 10 and the outer air flow channels 12, and the flowing performance of the ejected air flow is more stable.
Moreover, the outer layer gas flow passage 12 comprises a cylindrical section 121 and a conical outlet section 122, and the conical outlet section 122 is arranged in a contracting manner along the gas flow direction 120 of the outer layer gas flow passage; the structure of the center gas flow passage 10 is the same as that of the outer layer gas flow passage 12. The outlet structural design of the conical outlet section 122 is adopted, so that the collecting and pressurizing effects on the jet air flow are facilitated, the jet pressure and power of the air flow are improved, and the blowing and atomizing effects on the liquid flow are improved; and, the taper of the conical outlet section 122 is 30 degrees, and has a small gas flow resistance value, so that the gas can be sprayed outwards at a high speed.
The nozzle body 1 is further provided with a wedge-shaped sinking groove 16 corresponding to the conical outlet section 122, and the bottom surface of the wedge-shaped sinking groove 16 is perpendicular to the gas flow direction of the outer layer gas flow passage 120. Specifically, the wedge-shaped sinking groove 16 is an annular groove body, and the bottom surface of the wedge-shaped sinking groove 16 is perpendicular to the airflow sprayed from the outer-layer gas flow passage 120, so that no interference influence of other structures is caused at the outlet position of the outer-layer gas flow passage 12, and the airflow can be accurately sprayed and moved according to the airflow direction; correspondingly, a central sink groove is also arranged at the position of the gas outlet 101 of the central gas flow passage.
In this embodiment, four inner liquid flow passages 11 are circumferentially and uniformly distributed at intervals, and twelve outer gas flow passages 12 are circumferentially and uniformly distributed at intervals. Moreover, the liquid flow direction 110 of the inner layer liquid flow channel extends parallel to the gas flow axis 100 of the central gas flow channel, and the four inner layer liquid flow channels 11 are arranged in central symmetry with respect to the gas flow axis 100 of the central gas flow channel, and the arrangement of the four inner layer liquid flow channels 11 improves the liquid discharge amount of the whole atomizing nozzle in unit time. In addition, nozzle body 1 is hollow round cake structure, and nozzle body 1 goes up to run through along the thickness direction and is provided with four inlayer liquid flow tubes 2, and inlayer liquid flow tube 2 is equipped with the feed liquor connector 20 that is located the back side of nozzle body 1, communicates inlayer liquid flow tube 2 and liquid flow pipeline through feed liquor interface 20, and twelve air inlet flow channels 15 communicate and arrange on the periphery wall of nozzle body 1. It should be noted that the gas inlet channel of the central gas flow channel 10 is disposed between two adjacent inner liquid flow tubes 2, between two adjacent outer gas cavities 14, and between two adjacent gas inlet flow channels 15.
In other specific embodiments of the atomizing nozzle of the present invention, in order to meet different requirements, there are three inner liquid runners circumferentially spaced apart from each other, nine outer gas runners circumferentially spaced apart from each other, and the three inner liquid runners and the nine outer gas runners are distributed in central symmetry about the axis of the central gas runner; or the included angle between the airflow direction of the outer-layer gas flow channel and the airflow axis of the central gas flow channel can be 45 degrees or 60 degrees, and the liquid flow discharged from the inner-layer liquid flow channel can also play a remarkable role in blowing, scattering and atomizing, and can ensure that strong mist can be sprayed outwards.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. An atomizing nozzle is characterized by comprising a nozzle body, wherein a central gas flow channel, a plurality of inner layer liquid flow channels and a plurality of outer layer gas flow channels are arranged in the nozzle body, the outer layer gas flow channels are circumferentially arranged at intervals outside the central gas flow channel, and the inner layer liquid flow channels are circumferentially arranged at intervals at annular intervals between the central gas flow channel and the outer layer gas flow channels;
the gas flow direction of the outer layer gas flow channel is obliquely arranged towards the gas flow axis close to the central gas flow channel, the gas flow directions of the outer layer gas flow channels are intersected at the same position on the gas flow axis of the central gas flow channel, and the liquid flow directions of the inner layer liquid flow channels are respectively and crosswise arranged with the gas flow direction of the outer layer gas flow channel.
2. An atomiser nozzle as claimed in claim 1, in which a plurality of the inner liquid flow passages and a plurality of the outer gas flow passages are arranged in concentric circles about the axis of flow of the central gas flow passage.
3. An atomiser nozzle as claimed in claim 2, in which the direction of flow in the outer gas flow channels is at any angle between 30 ° and 60 ° to the axis of flow in the central gas flow channel.
4. The atomizing nozzle according to claim 1, wherein a central air chamber is further provided inside the nozzle body, and the central air chamber is communicated with the central air flow passage.
5. The atomizing nozzle as set forth in claim 4, wherein a plurality of outer air chambers are further provided in the nozzle body, the outer air chambers are communicatively provided on the outer air flow passages, and the plurality of outer air chambers are further provided with the inlet flow passages, respectively, and the plurality of inlet flow passages are radially arranged.
6. The atomizing nozzle of claim 1, wherein the outer gas flow passage includes a cylindrical section and a conical outlet section, the conical outlet section being disposed in a converging configuration along a gas flow direction of the outer gas flow passage; the structure of the central gas flow passage is the same as that of the outer layer gas flow passage.
7. An atomiser nozzle as claimed in claim 6, in which the nozzle body is further provided with a wedge-shaped recess corresponding to the tapered outlet section of the outer gas flow passage, the bottom face of the recess being perpendicular to the direction of flow of the outer gas flow passage.
8. An atomiser nozzle as claimed in claim 1, in which the direction of flow of the inner liquid flow passage extends parallel to the axis of flow of the central gas flow passage, and the inner liquid flow passages are arranged in a centrosymmetric manner about the axis of flow of the central gas flow passage.
9. An atomiser nozzle as claimed in claim 8, in which four of the inner liquid flow passages are circumferentially spaced apart and twelve of the outer gas flow passages are circumferentially spaced apart.
10. An atomizing nozzle as set forth in claim 5, wherein said nozzle body is of a hollow disk structure, and a plurality of inner layer liquid flow tubes are provided through said nozzle body in the thickness direction thereof, and said inner layer liquid flow tubes are provided with liquid inlet fittings located on the back side of said nozzle body; the plurality of intake runners are disposed in communication with the outer peripheral wall of the nozzle body.
CN202021129222.0U 2020-06-17 2020-06-17 Atomizing nozzle Active CN212284520U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021129222.0U CN212284520U (en) 2020-06-17 2020-06-17 Atomizing nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021129222.0U CN212284520U (en) 2020-06-17 2020-06-17 Atomizing nozzle

Publications (1)

Publication Number Publication Date
CN212284520U true CN212284520U (en) 2021-01-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021129222.0U Active CN212284520U (en) 2020-06-17 2020-06-17 Atomizing nozzle

Country Status (1)

Country Link
CN (1) CN212284520U (en)

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