CN211801733U - Water-gas mixing atomizing nozzle and atomizing device - Google Patents

Water-gas mixing atomizing nozzle and atomizing device Download PDF

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Publication number
CN211801733U
CN211801733U CN202020216223.2U CN202020216223U CN211801733U CN 211801733 U CN211801733 U CN 211801733U CN 202020216223 U CN202020216223 U CN 202020216223U CN 211801733 U CN211801733 U CN 211801733U
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China
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water
air
nozzle
atomizing
jet
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CN202020216223.2U
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Chinese (zh)
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卢薇
祝文军
梁羽翔
徐锐
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FOSHAN NANHAI KERI ELECTRONIC Co.,Ltd.
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Guangdong Heer Environmental Technology Co ltd
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Abstract

A water-gas mixing atomization spray head and an atomization device are provided, wherein the water-gas mixing atomization spray head comprises a nozzle, and a water channel and an air channel are arranged in the nozzle; the atomizing nozzle is characterized by further comprising a nozzle cap connected to the nozzle, an atomizing chamber is formed by combining the nozzle cap and the nozzle, a mist outlet communicated with the atomizing chamber is formed in the nozzle cap, a water channel and an air channel are also communicated with the atomizing chamber respectively, the water channel is used for enabling water flow to form jet water flow beams which are jetted along the axial direction, and the air channel is used for enabling air flow to form jet air flow beams which are jetted obliquely and enabling the jet air flow beams to deviate from the mist outlet of the atomizing chamber; the water-air mixing atomizing nozzle and the atomizing device have the advantages that when the water-air mixing atomizing nozzle and the atomizing device work, the airflow beams ejected by the first group of air channels and the water flow beams ejected by the water channels form a first junction point, so that the water flow beams ejected by the water channels can be directly scattered and atomized for the first time in a hard-to-hard mode by means of the airflow beams ejected by the first group of air channels, and the atomizing efficiency is greatly improved.

Description

Water-gas mixing atomizing nozzle and atomizing device
Technical Field
The invention relates to an atomization structure capable of atomizing water into water mist, in particular to a water-gas mixed atomization spray head and an atomization device.
Background
At present, the atomizing device is widely applied to the fields of agriculture, industry, fire fighting and the like. Different fields also require differently to the fog particle size, for example, when atomizing device is applied to the dust fall field, when the particle size of fog particle size and dust matches more, the dust is caught in easy collision of fog particle more, and then can reach better dust fall effect, so in order to solve the less respiratory nature dust of particle size, it forms the less fog of particle size to need atomizing device.
For the atomizing device of aqueous vapor hybrid, prior art generally refines the fog granule through improving the atomizing effect of gas to water or improving the relative speed of air water on unit area, but adopt these two kinds of modes can improve atomizing device's energy consumption, and can influence atomizing efficiency to a certain extent.
As another mode for refining mist particles of the water-gas mixed atomization device, the mist particles are further refined by the multiple atomization principle of water gas. For example, the utility model discloses a chinese utility model patent that publication number is CN206661483U, it discloses a mining inside and outside mixed atomizing dust fall nozzle of modified, including nozzle holder, nozzle core and nozzle head, be equipped with the atomizing chamber that is used for gas, liquid to mix in the nozzle core, set up four air ducts on the nozzle core simultaneously, be equipped with on the nozzle holder with the water inlet of atomizing chamber intercommunication and with the air inlet of four air ducts intercommunications, wherein two air ducts are used for connecting the atomizing chamber to strike the breakage to the pressurized water that gets into in the atomizing chamber, in the preliminary atomizing aqueous vapor mixture of atomizing intracavity gets into the atmospheric environment by pore footpath passageway, two other air ducts are used for connecting external atmosphere, and carry out collision once more to the water smoke that is carried out by pore footpath passageway exhaust, and then generate the particle diameter littleer, the water smoke particle of a large. This publication has the following problems:
1. the mixture formed after the initial collision of the water vapor in the atomizing cavity needs to be discharged out of the atmospheric environment through the passage with the smaller diameter, although the mixture is sheared and broken at the outlet of the atmospheric environment, the mixture can be easily fused again due to the reduction of the space when passing through the passage with the smaller diameter, and the former atomizing effect is further weakened;
2. two kinds of air ducts spout gas respectively in independent atomizing chamber and atmospheric environment separately, and twice atomizing gas is the atomizing of mutually independent completion to water or mixture promptly, and the utilization ratio of energy is not high, in addition, when directly spouting atmospheric environment with partial gas, atmospheric environment can weaken spun gas, reduces energy utilization.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a water-gas mixed atomizing nozzle, which reduces the grain diameter of atomization on the basis of controlling energy consumption.
In order to solve the technical problem, the invention provides a water-gas mixed atomization spray head which comprises a spray nozzle, wherein a water channel and a gas channel are arranged in the spray nozzle; the spray nozzle comprises a nozzle cap and an air channel, wherein the nozzle cap is connected to the nozzle, the nozzle cap and the nozzle are combined to form an atomization chamber, the nozzle cap is provided with a mist outlet communicated with the atomization chamber, the water channel and the air channel are also communicated with the atomization chamber respectively, the water channel is used for enabling water flow to form spray water flow beams sprayed axially, and the air channel is used for enabling air flow to form obliquely sprayed spray air flow beams and enabling the spray air flow beams to deviate from the mist outlet of the atomization chamber; the nozzle is provided with at least two groups of air channels which are respectively communicated with the atomizing chamber, namely a first group of air channels and a second group of air channels, the first group of air channels comprises at least two first air channels, the at least two first air channels are arranged to enable the jet air flow beams formed by the at least two first air channels to not only mutually meet but also meet with the jet water flow beams formed by the water channels so as to form a first meeting point, the second group of air channels comprises at least two second air channels, and the second air channels are arranged to enable the jet air flow beams formed by the at least two second air channels to be jetted to a space between the mist outlet of the atomizing chamber and the first meeting point.
The water channel is used for enabling water flow to form a jet water flow beam which is jetted along the axial direction, and the characteristic defines that the axial direction of the water-air mixing atomizing spray head and the nozzle is the jetting direction of the water flow, and in turn, the direction of the water flow is the axial direction; the internal structure and the flow direction of the water channel are not necessarily completely arranged axially, and the structure for ensuring that the jet water flow is axially sprayed is provided.
The air channel is used for enabling the air flow to form an oblique jet air flow beam, the oblique jet air flow beam is defined by the air flow to be obliquely jetted in a certain angle direction relative to the axial direction, the internal structure and the flow direction of the air channel can be in a linear type structure, a spiral type structure and the like, and the structure is only required to be provided for ensuring that the jet air flow beam is jetted in a direction oblique to the axial direction.
The air channel is used for enabling the jet air flow beam to deviate from the mist outlet of the atomization chamber, the jet air flow beam is defined to be not directly opposite to the mist outlet to jet but deviate from the mist outlet of the atomization chamber, so that the jet air flow is not directly jetted from the mist outlet but impacts the inner side wall of the side edge of the mist outlet to form reflection in the atomization chamber, turbulence is formed by increasing, and atomization efficiency is greatly improved.
Wherein, in theoretical design, said first junction is preferably located on the centerline of said jet stream, and also on the centerline of said jet stream, but as an actual engineered product, the actual processing is allowed to deviate; to this end, at least two of the first air channels are arranged such that their respective jet air streams not only intersect each other but also intersect the jet water stream formed by the water channel, the intersection points defined by the intersection points of the air streams or the air streams and the water stream being located within the air stream range or within the air stream and the water stream range, not necessarily on the center line.
Wherein the second air passage is arranged to allow the jet stream formed by the second air passage to be ejected into the space between the mist outlet of the atomizing chamber and the first junction, in fact, the space in front of (above) the first junction into which the jet stream can be ejected, and first defines the arrangement of the second air passage, in particular the outlet thereof, so that the jet stream formed by the second air passage can be ejected into the space between the mist outlet of the atomizing chamber and the first junction; secondly, the jet air flow beam formed by the second air channel can be jetted to the space above the first junction point, so that the atomized steam in the atomization chamber can be further atomized. The several jet streams formed by the several second air passages may or may not meet, and further atomize the water droplets by further impacting and breaking up the turbulent water droplets in the atomizing chamber, mainly by the kinetic energy of the air flow.
Compared with the prior art, the invention has the following main beneficial effects:
1. when the water-gas mixed atomizing spray head and the atomizing device work, the air flow beams sprayed out from the first group of air channels and the water flow beams sprayed out from the water channels form a first junction, so that the water flow beams sprayed out from the water channels can be directly scattered and atomized for the first time in a hard-to-hard mode by means of the air flow beams sprayed out from the first group of air channels, and the atomizing efficiency is greatly improved.
2. Because the second air channel is arranged to enable the jet air flow beam formed by the second air channel to be jetted to the space between the mist outlet of the atomizing chamber and the first intersection point, the atomized water drops which are concentrated in the atomizing chamber and form turbulent flow can be further smashed and atomized before flowing out by means of the air flow beam jetted by the second group of air channels, and the air flow beam jetted by the second air channel and the air flow beam jetted by the first air channel are mutually cooperated to enhance the atomizing effect, compared with the scheme that the beam channel 13 is arranged between the first atomization and the second atomization in the prior art (with the notice number of CN 206661483U) and the different spaces are respectively impacted and atomized, the oscillation degree of the air flow in the atomizing chamber is obviously increased, and the atomizing efficiency is higher.
As a refinement of the above, at least two of the second air passages are arranged such that their jet air streams intersect one another so as to be able to form a second intersection point, the first intersection point being axially spaced from the second intersection point. Therefore, the impact kinetic energy can be mutually reinforced by the airflow beams sprayed by the two second air channels by utilizing the characteristic that the airflow beams sprayed by the two second air channels can mutually intersect.
As an improvement of the above solution, said second junction is located on an axial trajectory defined by the jet of water formed by said water passage. The axial track defined by the jet water stream formed by the water channel refers to a position which is located in front of the first junction point and in the same axial direction as the jet water stream formed by the water channel, because the jet water stream formed by the water channel at the first junction point is not necessarily capable of being totally dispersed by the jet water stream formed by the first air channel, and a part of large water drops can continue to advance along the original track, for this reason, because the second junction point is located on the axial track defined by the jet water stream formed by the water channel, the residual jet water stream formed by the water channel after passing through the first junction point can be further directly crushed by the jet water stream formed by the second air channel.
As an improvement of the scheme, the mist outlet on the nozzle cap is in a narrow gap shape. Can pass through like this go out the fog mouth and form the water smoke curtain, not only reduce the interference between the water smoke but also can improve atomizing dust removal efficiency. For example, one or more of the atomizing nozzles can be used to form a tunnel section for atomizing and dedusting.
As an improvement of the above scheme, the second junction point is close to the mist outlet. Therefore, the water mist is atomized for the second time reliably before being sprayed out from the mist outlet, and the atomization efficiency is improved.
As a modification of the above, the ejection ports of the first and second air passages are arranged on the same circumference centering on the outlet of the water passage;
or the injection ports of the first air passage are arranged on the same circumference with the outlet of the water passage as the center, the injection ports of the second air passage are arranged on the same circumference with the outlet of the water passage as the center, and the injection ports of the first air passage and the second air passage are positioned on different circumferences.
As an improvement of the scheme, the first air channels and the second air channels are the same in number and are arranged in a staggered mode in the circumferential direction.
As an improvement of the above scheme, the side wall of the nozzle cap for forming the atomization chamber comprises a cylindrical part and a conical part which are connected, the mist outlet is arranged in the area where the conical part is located, and the nozzle closes the end part of the cylindrical part far away from the conical part to form the atomization chamber.
Correspondingly, the invention also discloses an atomizing device which comprises a base and the water-gas mixed atomizing spray head, wherein the base is connected with the spray nozzle, and the base is provided with a water inlet road communicated with the water channel and an air inlet road communicated with the at least two groups of gas channels.
As an improvement of the scheme, an annular transition cavity communicated with the air inlet road is formed between the end face of the nozzle and the end face of the base, and the air channels of the nozzle are communicated with the annular transition cavity.
The invention has the characteristics and advantages, so the invention can be applied to the water-gas mixed atomizing nozzle and the atomizing device, and further can realize the effect of multiple atomization.
Drawings
FIG. 1 is a schematic structural view of an atomizer head according to the present invention;
FIG. 2 is a top view of the nozzle of the present invention;
FIG. 3 is a cross-sectional view of FIG. 1 taken along direction CC;
fig. 4 is a cross-sectional view of an atomizing device of the present invention.
Detailed Description
The structure of the water-gas mixing atomizer and the atomizer using the technical solution of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to fig. 3, the invention discloses a water-gas mixed atomizer, comprising a nozzle 1 and a nozzle cap 2 connected to the nozzle 1. The nozzle 1 is provided with a water channel 11 arranged along the axial direction and an air channel 12 arranged obliquely relative to the axial direction, and the water channel 11 and the air channel 12 can be circular hole channels, square channels or channels with other shapes. The nozzle cap 2 with the combination of nozzle 1 is formed with atomizing chamber 3, be equipped with the intercommunication on the nozzle cap 2 atomizing chamber 3's play fog mouth 21, it is the narrow gap form to go out fog mouth 21, water passageway 11 with gas passageway 12 also communicates respectively atomizing chamber 3. The water passage 11 is used to form a jet stream of water ejected in an axial direction. The air channel 12 is used for forming an air flow into an obliquely ejected jet air flow beam and deviating the jet air flow beam from the mist outlet 21 of the atomizing chamber 3, so that the jet air flow beam does not directly face the mist outlet 21 but deviates from the mist outlet 21 of the atomizing chamber 3, and thus the jet air flow does not directly eject from the mist outlet 21 but hits the inner side wall of the side edge of the mist outlet 21 to form reflection in the atomizing chamber 3, thereby increasing the formation of turbulence and greatly improving the atomizing efficiency. Wherein, the water passage 11 is used for making the water flow form a jet water flow beam which is ejected along the axial direction, and the characteristic defines that the axial direction of the water-air mixing atomizer and the nozzle is the water flow ejection direction, and conversely, the water flow direction is also defined as the axial direction; the internal structure and flow direction of the water channel 11 itself need not be completely axial, as long as it has a structure that ensures that the jet stream is axially ejected. The air channel 12 is used for forming an air flow into an oblique jet air flow beam, and it is defined that the air flow is obliquely jetted in a certain angle direction relative to the axial direction, and the internal structure and the flow direction of the air channel 12 itself may be a linear type, a spiral type, etc., as long as it has a structure that ensures that the jet air flow beam is jetted in a direction oblique to the axial direction.
At least two sets of air passages 12, namely a first set of air passages and a second set of air passages, which are respectively communicated with the atomizing chamber 3, are arranged in the nozzle 1, the first set of air passages comprises at least two first air passages 12a, and at least two first air passages 12a are arranged to enable jet air flow beams formed by the first air passages to be mutually converged and also converged with jet water flow beams formed by the water passages 11 so as to form a first convergence point B1. The second set of air passages comprises at least two second air passages 12B, and the second air passages 12B are arranged to enable the jet air flow formed by the second air passages to be jetted to the space between the mist outlet 21 of the atomizing chamber 3 and the first intersection point B1. In theoretical terms, the first intersection point B1 is preferably located on the center line of the jet stream, and also on the center line of the jet stream, but as an actual engineering product in this embodiment, actual processing is allowed to deviate; for this purpose, at least two of the first air passages 12a are arranged such that their respective jet air flow streams not only intersect each other but also intersect the jet water flow streams formed by the water passages 11, and their defined intersection points of the respective jet air flow streams are located within the range of the air flow streams or the range of the intersection points of the air flow streams and the water flow streams, and do not necessarily lie on the center line.
When the water-gas mixed atomization nozzle works, the water channel 11 axially sprays jet water flow beams into the atomization chamber 3, and the gas channel 12 sprays jet gas flow beams into the atomization chamber 3 along a direction which forms a certain inclination angle with the jet water flow beams. The water mist mixture is mainly diffused in front of the first junction point under the primary atomization action of the jet air flow beams (the jet direction of the jet water flow beams is front, and the jet direction of the jet water flow beams back to the jet water flow beams is relatively back). Accordingly, the jet stream formed by the second air passage 12B is jetted to the space between the mist outlet 21 and the first junction B1 in the atomizing chamber 3 and impinges on the inner side wall of the atomizing chamber 3, and this jet stream also further impinges on part of the primarily atomized water and mist, and in addition, the jet stream formed by the second air passage provides further turbulent motive force for the flow field in the atomizing chamber 3, and the motive force of the direct impingement and turbulent air flow causes the atomized at least part of the water-mist mixture to be secondarily atomized. It can be seen that the atomizer of the present invention realizes at least two times of impact atomization in the same atomization chamber 3, the jet air stream of the second atomization affects the air stream generated after the first atomization, and increases the oscillation degree of the air stream in the atomization chamber 3, compared with the prior art in which impact atomization is respectively performed in different spaces, the atomizer of the present invention has a higher energy consumption utilization rate, and mist particles with smaller particle size can be formed on the basis of the same energy consumption. In addition, the atomizing nozzle can achieve a more uniform atomizing effect under the action of a disordered flow field.
In order to further increase the energy efficiency of the atomizer, the atomizer according to the present invention arranges at least two of the second air passages 12B such that their air jet streams meet each other to form a second junction B2, the first junction B1 being axially spaced apart from the second junction B2. The jet gas flow beam formed by the second gas channel 12B collides violently at a second intersection point B2, so as to provide a further strong turbulent power for the flow field in the atomizing chamber 3, and largely atomize the water in the atomizing chamber 3 after being sequentially atomized again, so that the particles atomized by the atomizing nozzle can achieve a finer effect under certain energy consumption. The second junction point is preferably close to the mist outlet 21, and when the second junction point is close to the mist outlet 21, secondary atomization is performed on water and mist as much as possible, so that the energy utilization rate is improved. The air channel of the invention can be provided with a third group of air channels to form a third junction, even a fourth group of air channels to form a fourth junction, and the like.
It should be noted that the jet of water formed by the water passage 11 may not be completely dispersed by the collision of the jet of water passing through the first group of air passages, and at this time, the remaining jet of water not dispersed is continuously injected forward and secondarily atomized. As a preferred option for the second atomization, the second junction B2 is located on the axial trajectory defined by the jet of water formed by the water passage 11. The axial path defined by the jet stream is an axial movement path which the jet stream may still be able to continue after passing beyond the first junction B1, and the second junction B2 is located on the extension of the jet stream if no residual jet stream is present after the jet stream has been broken up at the first junction B1. In the atomizing nozzle 1 of the present invention, the second junction B2 is directly disposed on the axial trajectory defined by the jet stream formed by the water passage 11, so that even if the residual jet stream still exists after the primary atomization, the residual jet stream can be directly impacted by the multiple intersecting jet streams formed by the second air passage 12B, and the secondary atomization of the remaining jet stream can be further enhanced under the above-mentioned strong secondary atomization condition.
Further, the included angle formed by the jet stream and the jet water stream corresponding to the first junction B1 is a1, the included angle formed by the jet stream and the jet water stream corresponding to the second junction B2 is a2, and a1 is preferably larger than a 2. When a1 is larger than a2, the maximum radial surface occupied by the air passage 12 can be reduced, i.e., the requirement for the radial dimension of the nozzle 1 is low. Alternatively, a1 of the present invention may be equal to or smaller than a2, and if a1 is equal to or smaller than a2, the air channel 12 corresponding to the second junction B2 needs to occupy a larger radial dimension relative to the first junction B1, and in this case, a larger radial dimension of the nozzle 1 is needed.
As a preferable structure of the nozzle cap 2, the sidewall of the nozzle cap 2 for forming the atomizing chamber 3 includes a cylindrical portion 22 and a conical portion 23 which are connected, the mist outlet 21 is disposed in an area where the conical portion 23 is located, and the nozzle 1 closes an end portion of the cylindrical portion 22 away from the conical portion 23 to form the atomizing chamber 3. In order to provide space for multiple atomization, the present invention provides the inner cavity of the nozzle cap 2 as two parts, a cylindrical part 22 and a conical part 23. The area where the cylindrical portion 22 is located is mainly used for primary atomization, so that sufficient space is ensured for primary atomization, and water and mist can be mixed sufficiently in the sufficient space. The atomized air flow can flow to the air jet, and the fog outlet 21 is arranged in the area where the conical part 23 is located, so that the air flow can flow to the conical part 23, and in the flowing process, the air flow can generate friction and impact under the action of reducing the caliber, which is equivalent to further atomization, and the fog particle size can be further reduced.
One or more mist outlets 21 may be provided. Preferably one of the mist outlets 21 is arranged on the axial trajectory defined by the jet of water. The mist outlet 21 may have a narrow slit shape or a circular shape. When the mist outlet 21 is in a narrow gap structure, the mist outlet 21 can form a water mist curtain wall, so that the interference between water mist is reduced, and the atomization and dust removal efficiency can be improved. For example, one or more of the atomizing nozzles can be used to form a tunnel section for atomizing and dedusting.
The gas passages 12 of the present invention preferably take the following two arrangements:
in the first arrangement, the ejection ports of the first air passage 12a and the second air passage 12b are arranged on the same circumference centering on the outlet of the water passage 11.
In the second arrangement, the injection ports of the first air passage 12a are arranged on the same circumference centering on the outlet of the water passage 11, the injection ports of the second air passage 12b are arranged on the same circumference centering on the outlet of the water passage 11, and the injection ports of the first air passage 12a and the second air passage 12b are located on different circumferences. I.e. different sets of said air channels 12 are arranged on different circumferences, in the manner shown in fig. 2, and the number of air channels in the two sets is the same. The arrangement of the two ends of the gas channel 12 projected to the radial surface of the nozzle can be reasonably arranged according to the requirement.
As an embodiment of the airflow ordering of the atomizing chamber 3, the number of the first air channels 12a and the second air channels 12b is the same, and the first air channels 12a and the second air channels 12b are arranged in a staggered manner in the circumferential direction. At this time, the flow of the jet stream formed by each of the gas passages 12 is more orderly.
Referring to fig. 4, the invention further discloses an atomizing device, which comprises a base 4 and the water-air mixing atomizing nozzle of the invention, wherein the base 4 is connected with the nozzle 1, and the base 4 is provided with a water inlet path 41 communicated with the water channel 11 and an air inlet path 42 communicated with the at least two groups of air channels 12. The structure and the working principle of the water-gas mixing atomizing nozzle specifically refer to the content of the above specific embodiment.
The air intake path 42 may be an air intake main path, and is communicated with each independent air passage 12 through the air intake main path; the air inlet path 42 may also be provided with an air inlet sub-path corresponding to each air channel 12, and in practical use, an operator may introduce air with different pressure into each air inlet sub-path according to requirements. Figure 4 shows the manner of the air intake manifold.
Further, an annular transition cavity 13 communicated with the air inlet passage 42 is formed between the end face of the nozzle 1 and the end face of the base 4, and the air passages 12 of the nozzle 1 are communicated with the annular transition cavity 13. According to the atomizing device, gas entering the gas channel 12 from the base 4 is firstly introduced into the annular transition cavity 13 of the nozzle 1, and the gas in the annular transition cavity 13 flows clockwise or anticlockwise under the action of gas flow and is simultaneously distributed into the gas channels 12. The annular transition chamber 13 of the present invention facilitates the discharge of gas into the gas channel 12 and further increases the kinetic energy of the gas due to the flow of the gas. Since each of the air passages 12 is in communication with the annular transition chamber 13, use of the annular transition chamber 13 herein may infer that the air intake path 42 generally follows the general path of air intake.
The atomization device of the present invention may be used alone or in combination of a plurality of atomization devices. When the atomization device is used singly, an external water source can be directly communicated with the water inlet path 41 of the base 4 through a water path structure, and external compressed gas is communicated with the air inlet path 42 of the base 4 through an air path structure. When a plurality of atomization devices are combined for use, the layout mode of the water path and the gas path of the Chinese utility model with the publication number of CN207342939U can be adopted.

Claims (10)

1. The water-gas mixed atomization spray head comprises a spray nozzle, wherein a water channel and a gas channel are arranged in the spray nozzle; the atomizing nozzle is characterized by further comprising a nozzle cap connected to the nozzle, an atomizing chamber is formed by combining the nozzle cap and the nozzle, a mist outlet communicated with the atomizing chamber is formed in the nozzle cap, the water channel and the air channel are also communicated with the atomizing chamber respectively, the water channel is used for enabling water flow to form jet water flow beams which are ejected along the axial direction, and the air channel is used for enabling air flow to form obliquely ejected jet air flow beams and enabling the jet air flow beams to deviate from the mist outlet of the atomizing chamber; the nozzle is provided with at least two groups of air channels which are respectively communicated with the atomizing chamber, namely a first group of air channels and a second group of air channels, the first group of air channels comprises at least two first air channels, the at least two first air channels are arranged to enable the jet air flow beams formed by the at least two first air channels to not only mutually meet but also meet with the jet water flow beams formed by the water channels so as to form a first meeting point, the second group of air channels comprises at least two second air channels, and the second air channels are arranged to enable the jet air flow beams formed by the at least two second air channels to be jetted to a space between the mist outlet of the atomizing chamber and the first meeting point.
2. The water-air mixture atomizing spray head of claim 1, wherein at least two of said second air passages are arranged such that their air jet streams converge with one another to form a second point of convergence, said first point of convergence being axially spaced from said second point of convergence.
3. The water and air mixing atomizing spray head of claim 2, wherein said second point of intersection is located on an axial path defined by the spray water stream formed by said water passageway.
4. The water-gas mixture atomizing nozzle according to claim 3, wherein the mist outlet on the nozzle cap is in the shape of a narrow slit.
5. The water-air mixture atomizer of any one of claims 2 to 4, wherein the second point of intersection is located proximate to the mist outlet.
6. The water-gas mixing atomizer according to any one of claims 2 to 4, wherein the injection ports of the first gas passage and the second gas passage are arranged on the same circumference centering on the outlet of the water passage;
or the jet ports of the first air passage are arranged on the same circumference by taking the outlet of the water passage as the center, the jet ports of the second air passage are arranged on the same circumference by taking the outlet of the water passage as the center, and the jet ports of the first air passage and the jet ports of the second air passage are positioned on different circumferences.
7. The water-gas mixing atomizing spray head of claim 6, wherein the number of the first gas passages is the same as that of the second gas passages, and the first gas passages and the second gas passages are arranged in a staggered manner in the circumferential direction.
8. The water-gas mixture atomizing nozzle according to any one of claims 1 to 4, wherein the side wall of the nozzle cap for forming the atomizing chamber comprises a cylindrical portion and a conical portion which are connected, the mist outlet is arranged in the area of the conical portion, and the nozzle closes the end portion of the cylindrical portion far away from the conical portion to form the atomizing chamber.
9. An atomizer, comprising a base and the water-air mixture atomizer of any one of claims 1 to 8, wherein the base is connected to a nozzle, and the base is provided with a water inlet passage communicated with the water passage and a gas inlet passage communicated with the at least two sets of gas passages.
10. The atomizing device of claim 9, wherein an annular transition chamber is formed between the end face of the nozzle and the end face of the base, the annular transition chamber communicating with the air inlet passage, and the air passages of the nozzle each communicate with the annular transition chamber.
CN202020216223.2U 2020-02-27 2020-02-27 Water-gas mixing atomizing nozzle and atomizing device Active CN211801733U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113368444A (en) * 2021-05-20 2021-09-10 中国舰船研究设计中心 Flow-adjustable water curtain and water mist composite spraying device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113368444A (en) * 2021-05-20 2021-09-10 中国舰船研究设计中心 Flow-adjustable water curtain and water mist composite spraying device

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