CN112246463B - Multi-fluid atomization device - Google Patents

Abstract

The invention relates to the technical field of atomization and discloses a multi-fluid atomization device which comprises a gas-liquid injector, a gas-liquid channel reducer and a gas-liquid mixing atomization cap. Through design gas passage and gas conveying line, first liquid passage and first liquid conveying line, second liquid passage and second liquid conveying line carry out different fluidic transport respectively, can mix two kinds of different liquid transport to the gas-liquid mixture chamber in the gas-liquid mixture atomizing cap simultaneously to through the instant atomizing breakage of atomizing gas for tiny liquid drop output, thereby realize the real-time mixed atomizing of many fluids. The design avoids the phenomena of poor atomization effect, ineffective chemical characteristics and the like caused by chemical reaction generated by mixing different liquids in advance, and ensures the uniformity of the distribution of substances in liquid drops after mixing and atomization to a great extent.

Description

A multi-fluid atomizing device

technical field

The invention relates to the technical field of atomization, in particular to a multi-fluid atomization device.

Background technique

Liquid atomization technology is commonly used in catalytic granulation, powder metallurgy, cooling and humidification, cleaning and dust reduction in the industrial field. In addition, it is also widely used in transportation, aerospace and agricultural production. At present, the most commonly used methods in liquid atomization are pressure-type mechanical atomization and gas-liquid two-phase pneumatic atomization. Among them, the pneumatic atomization device uses a certain pressure of gas (compressed air or other gas) to form a high-speed The airflow creates a high relative velocity between the gas and the liquid to achieve liquid atomization, converts the liquid into micron-sized atomized particles, and sprays them out through the nozzle outlet.

Pneumatic atomization device can obtain good atomization effect under lower hydraulic pressure, and the working conditions can be adjusted in a wide range, but because it is not a single power source, its internal system design is also more complicated. The existing pneumatic atomization device is generally a dual-channel two-fluid atomization device, which specifically includes a liquid inlet, a gas inlet, and an atomization vapor outlet, which can realize the atomization of a single liquid. Therefore, this type of atomization device can only realize the mixed atomization of a single liquid and gas. When faced with the mixed atomization of two liquids, it can only choose to mix different liquids in advance, and then use the mixed liquid for transportation. Real-time mixing and atomization of various liquids is carried out through the atomization device; and there may be phenomena such as poor atomization effect and failure of chemical properties due to chemical reactions of different liquids due to pre-mixing.

Therefore, it is necessary to provide a multi-fluid atomization device, so that gas and at least two different liquids can be input, and the purpose of real-time mixing and atomization of the two different liquids can be achieved.

SUMMARY OF THE INVENTION

In view of this, it is necessary to provide a multi-fluid atomization device that can realize real-time mixed atomization of two different liquids.

A multi-fluid atomizing device, comprising a gas-liquid injector, a gas-liquid channel reducer and a gas-liquid mixing atomizing cap;

The gas-liquid injector is provided with a gas channel, a first liquid channel and a second liquid channel;

The gas-liquid channel reducer is provided with a gas delivery pipeline, a first liquid delivery pipeline and a second liquid delivery pipeline, the gas-liquid channel reducer is connected with the gas-liquid injector, and the gas The channel communicates with the gas delivery pipeline, the first liquid channel communicates with the first liquid delivery pipeline, and the second liquid channel communicates with the second liquid delivery pipeline;

The gas-liquid mixing atomizing cap includes a gas-liquid mixing chamber and an atomizing vapor outlet, the atomizing vapor outlet is communicated with the gas-liquid mixing chamber, and the gas-liquid mixing atomizing cap and the gas-liquid channel are tapered The gas delivery pipeline, the first liquid delivery pipeline and the second liquid delivery pipeline are all communicated with the gas-liquid mixing chamber.

In one embodiment, the gas delivery pipeline includes a gas delivery pipeline inlet and a gas delivery pipeline outlet, and along the direction from the gas delivery pipeline inlet to the gas delivery pipeline outlet, the gas delivery pipeline The cross-sectional area of shows a trend of first decreasing and then increasing.

In one embodiment, the gas-liquid channel reducer includes a connector, a channel body and an outlet part, the connector and the outlet part are respectively provided at two ends of the channel body, and the gas delivery pipeline The connecting piece, the channel body and the outlet part are successively penetrated, the first liquid delivery pipeline and the second liquid delivery pipeline both penetrate the channel body, and the outlet part extends into the gas In the liquid mixing chamber, one end of the outlet part away from the channel body is close to the atomization vapor outlet.

In one embodiment, the shape of the connecting piece is cylindrical, the cross section of the gas channel is circular, the connecting piece is arranged in the gas channel, and the connecting piece and the gas channel are threaded through threads connect.

In one embodiment, the gas channel includes a gas channel outlet, the first liquid channel includes a first liquid channel outlet, the second liquid channel includes a second liquid channel outlet, and the cross section of the first liquid channel outlet It is an arc groove type, the cross-section of the second liquid channel outlet is a circular arc groove type, the first liquid channel outlet and the second liquid channel outlet are arranged at the same center of the circle, and the gas channel outlet is arranged on the second liquid channel outlet. A liquid channel outlet and the center of the second liquid channel outlet.

In one embodiment, the channel body is in the shape of a cone, the connecting piece is provided at the bottom of the cone of the channel body, the outlet is provided at the top of the cone of the channel body, and the gas delivery pipeline includes gas The inlet of the delivery pipeline and the outlet of the gas delivery pipeline, the first liquid delivery pipeline includes the first liquid delivery pipeline inlet and the first liquid delivery pipeline outlet, and the second liquid delivery pipeline includes the second liquid delivery pipeline The inlet and the outlet of the second liquid delivery pipeline, the inlet of the first liquid delivery pipeline and the inlet of the second liquid delivery pipeline are arranged at the bottom of the cone of the channel body, and the outlet of the first liquid delivery pipeline and the The outlets of the second liquid delivery pipelines are all arranged at the top of the cone of the channel body, the inlets of the gas delivery pipelines are arranged at the end of the connecting piece away from the channel body, and the outlets of the gas delivery pipelines are arranged at the ends of the connecting pieces away from the channel body. The outlet portion is remote from one end of the channel body.

In one embodiment, the gas channel includes a gas channel inlet, the first liquid channel includes a first liquid channel inlet, the second liquid channel includes a second liquid channel inlet, the gas channel inlet, the first liquid channel The cross-sections of the first liquid channel inlet and the second liquid channel inlet are all circular, and the inner threads of the gas channel inlet, the first liquid channel inlet and the second liquid channel inlet are all provided with internal threads.

In one embodiment, the multi-fluid atomizing device further includes a first liquid flow adjustment joint and a second liquid flow adjustment joint, and liquid pipes on the first liquid flow adjustment joint and the second liquid flow adjustment joint Each is provided with a flow regulating valve, the first liquid flow regulating joint is installed at the inlet of the first liquid channel, and is threaded with the gas-liquid injector, and the second liquid flow regulating joint is installed on the second liquid flow regulating joint. The inlet of the liquid channel is threaded with the gas-liquid injector.

In one embodiment, the gas channel inlet is fitted with a gas filter fitting.

In one embodiment, the first liquid channel includes at least two first liquid branches, and the second liquid channel includes at least two second liquid branches;

The first liquid conveying pipeline includes at least two first liquid conveying branches, and the second liquid conveying pipeline includes at least two second liquid conveying branches;

The first liquid branch and the first liquid conveying branch communicate with each other in one-to-one correspondence;

The second liquid branch and the second liquid conveying branch communicate with each other in a one-to-one correspondence.

The above-mentioned multi-fluid atomization device is designed with a gas channel and a gas delivery pipeline, a first liquid channel and a first liquid delivery pipeline, a second liquid channel and a second liquid delivery pipeline, and can simultaneously input gas and two liquids, A multi-fluid atomizing device is formed. By setting a gas-liquid mixing chamber in the gas-liquid mixing atomization cap, two liquids can be mixed in the gas-liquid mixing chamber, and the mixed liquid of the two liquids and the gas can be mixed and atomized, so as to realize the real-time mixed mist of two different liquids It avoids the phenomenon of poor atomization effect and chemical failure due to chemical reaction of two liquids being mixed in advance. In addition, a pre-mixing space for two liquids is provided through the gas-liquid mixing chamber before atomization, so that the two liquids can be fully mixed in the gas-liquid mixing chamber before atomization, which ensures the material distribution of the droplets after mixing and atomization. uniformity.

Description of drawings

1 is a schematic diagram of the overall structure of a multi-fluid atomization device according to an embodiment;

Fig. 2 is the exploded schematic diagram of the multi-fluid atomization device shown in Fig. 1;

Fig. 3 is a side view of the multi-fluid atomizing device shown in Fig. 1;

Fig. 4 is the A-A sectional structure schematic diagram of the multi-fluid atomizing device shown in Fig. 3;

5 is a bottom view of the gas-liquid injector of an embodiment;

Fig. 6 is the B-B sectional structure schematic diagram of the gas-liquid injector shown in Fig. 5;

7 is a top view of a gas-liquid channel reducer according to an embodiment;

FIG. 8 is a schematic view of the C-C cross-sectional structure of the gas-liquid channel reducer shown in FIG. 7;

9 is a schematic diagram of a gas filter joint according to an embodiment;

Figure 10 is a flow chart of the mixed atomization of different liquids.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be understood that the relationship indicating orientation or position such as "up" is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship that is usually placed when the product of the invention is used. , or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , so it should not be construed as a limitation of the present invention.

Furthermore, the terms "first", "second", etc. are only used to differentiate the description and should not be construed to indicate or imply relative importance.

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to FIGS. 1 to 4 , a multi-fluid atomizing device according to an embodiment includes a gas-liquid injector 1 , a gas-liquid channel reducer 2 and a gas-liquid mixing atomizing cap 3 .

Please refer to FIG. 6 , the gas-liquid injector 1 is provided with a gas channel 107 , a first liquid channel 108 and a second liquid channel 109 .

Please refer to FIG. 8 , the gas-liquid channel reducer 2 is provided with a gas delivery pipeline 203 , a first liquid delivery pipeline 201 and a second liquid delivery pipeline 202 . The gas-liquid channel reducer 2 is connected with the gas-liquid injector 1, the gas channel 107 is connected with the gas delivery pipeline 203, the first liquid channel 108 is connected with the first liquid delivery pipeline 201, and the second liquid channel 109 is connected with the second liquid delivery pipeline 201. The liquid delivery line 202 communicates.

Referring to FIG. 4 , the gas-liquid mixing atomizing cap 3 includes a gas-liquid mixing chamber 302 and an atomizing vapor outlet 304 , and the atomizing vapor outlet 304 communicates with the gas-liquid mixing chamber 302 . The gas-liquid mixing atomizing cap 3 is connected to the gas-liquid channel reducer 2 , and the gas delivery pipeline 203 , the first liquid delivery pipeline 201 and the second liquid delivery pipeline 202 are all communicated with the gas-liquid mixing chamber 302 .

The above-mentioned multi-fluid atomization device is designed with a gas channel 107 and a gas delivery pipeline 203, a first liquid channel 108 and a first liquid delivery pipeline 201, a second liquid channel 109 and a second liquid delivery pipeline 202, which can be input at the same time. Atomizing gas and two liquids, forming a multi-channel multi-fluid atomizing device. By setting the gas-liquid mixing chamber 302 in the gas-liquid mixing atomizing cap 3, the two liquids can be mixed in the gas-liquid mixing chamber 302, and the mixed liquid of the two liquids and the gas can be mixed and atomized, so as to realize the mixing and atomization of the two different liquids. Real-time mixing and atomization avoids the phenomenon of poor atomization effect and failure of chemical properties caused by chemical reaction of two liquids in advance. In addition, the gas-liquid mixing chamber 302 provides a pre-mixing space for the two liquids before atomization, so that the two liquids can be fully mixed in the gas-liquid mixing chamber 302 and then atomized, ensuring that the substances in the droplets after mixing and atomization are mixed. uniformity of distribution.

In one embodiment, the gas-liquid mixing atomizing cap 3 is connected to the gas-liquid channel reducer 2 through threads.

In one embodiment, please refer to FIG. 2 , the gas-liquid channel reducer 2 includes a connector 210 , a channel body 220 and an outlet portion 230 . The connecting member 210 and the outlet portion 230 are respectively disposed at both ends of the channel body 220 . The gas delivery pipeline 203 passes through the connecting piece 210 , the channel body 220 and the outlet part 230 in sequence. Referring to FIG. 8 , both the first liquid delivery pipeline 201 and the second liquid delivery pipeline 202 penetrate through the channel body 220 . Referring to FIG. 4 , the outlet portion 230 extends into the gas-liquid mixing chamber 302 , and one end of the outlet portion 230 away from the channel body 220 is close to the atomizing vapor outlet 304 .

In one embodiment, please refer to FIG. 2 , the shape of the connector 210 is cylindrical, the cross section of the gas channel 107 is circular, the connector 210 is arranged in the gas channel 107 , and the connector 210 and the gas channel 107 are connected by screws . Through this connection method, the connection between the gas-liquid injector 1 and the gas-liquid channel reducer 2 can be made tighter, and the sealing performance is better.

In one embodiment, please refer to FIGS. 5 and 6 , the gas channel 107 includes a gas channel outlet 106 , the first liquid channel 108 includes a first liquid channel outlet 102 , and the second liquid channel 109 includes a second liquid channel outlet 104 . The cross section of the first liquid channel outlet 102 is an arc groove type, the cross section of the second liquid channel outlet 104 is an arc groove type, and the first liquid channel outlet 102 and the second liquid channel outlet 104 are arranged at the same center. The gas channel outlet 106 is provided at the center of the first liquid channel outlet 102 and the second liquid channel outlet 104 . Since the connection between the gas-liquid injector 1 and the gas-liquid channel reducer 2 needs to be tightened, the cross-sections of the first liquid channel outlet 102 and the second liquid channel outlet 104 are designed as arc grooves to ensure the The stability of the communication between the first liquid delivery pipeline 201 and the first liquid channel 108 of the liquid channel reducer 2, and the stability of the communication between the second liquid delivery pipeline 202 and the second liquid channel 109 are avoided due to thread tolerances. The installation deviation caused the phenomenon that the pipeline connection is blocked.

In one embodiment, please refer to FIG. 2 , FIG. 3 , FIG. 7 and FIG. 8 , the channel body 220 is shaped like a cone, and the connecting member 210 is disposed at the bottom of the cone of the channel body 220 . The outlet portion 230 is provided at the top of the cone of the channel body 220 . The gas delivery line 203 includes a gas delivery line inlet and a gas delivery line outlet. The first liquid delivery line 201 includes a first liquid delivery line inlet and a first liquid delivery line outlet. The second liquid delivery line 202 includes a second liquid delivery line inlet and a second liquid delivery line outlet. The inlet of the first liquid delivery pipeline and the inlet of the second liquid delivery pipeline are provided at the bottom of the cone of the channel body 220 . The outlet of the first liquid delivery pipeline and the outlet of the second liquid delivery pipeline are both provided at the top of the cone of the channel body 220 . The inlet of the gas delivery pipeline is provided at one end of the connector 210 away from the channel body 220 , and the outlet of the gas delivery pipeline is arranged at one end of the outlet portion 230 away from the channel body 220 . The outlet of the first liquid delivery pipeline and the outlet of the second liquid delivery pipeline are both located at the top of the cone of the channel body 220, and the two different liquids can be atomized immediately after being rapidly mixed in the gas-liquid mixing chamber 302 to ensure that the two different liquids are mixed together. Atomization uniformity without unnecessary chemical reactions.

In one embodiment, please refer to FIG. 8 , the diameter of the gas delivery pipeline 203 adopts a Laval tube-type “contraction-later expansion” gradient design from the inlet of the gas delivery pipeline and the outlet of the gas delivery pipeline. That is, along the direction from the inlet of the gas delivery pipeline to the outlet of the gas delivery pipeline, the cross-sectional area of the gas delivery pipeline presents a trend of decreasing first and then increasing. The "contraction-expansion" design can accelerate the gas when passing through the gas pipeline, thereby further increasing the relative velocity between the gas and the liquid. Under the action of a large aerodynamic force, the liquid is broken into smaller droplets by the high-speed airflow during the atomization process, so as to obtain a better atomization effect without increasing the excessive air supply pressure.

In one embodiment, please refer to FIG. 6 , the gas channel 107 includes a gas channel inlet 105 , the first liquid channel 108 includes a first liquid channel inlet 101 , the second liquid channel 109 includes a second liquid channel inlet 103 , and the gas channel inlet 105 The cross-sections of the first liquid channel inlet 101 and the second liquid channel inlet 109 are all circular, and the inner threads of the gas channel inlet 105, the first liquid channel inlet 101 and the second liquid channel 109 are all provided with internal threads.

Specifically, the gas-liquid injector 1 is shaped like a cuboid, wherein the gas channel inlet 105, the first liquid channel inlet 101 and the second liquid channel inlet 103 are distributed on three different surfaces of the gas-liquid injector 1, and the gas channel outlet 106 . The first liquid channel outlet 102 and the second liquid channel outlet 104 are jointly distributed on opposite sides of the gas channel inlet 105 . The gas channel inlet 105, the first liquid channel inlet 101 and the second liquid channel inlet 103 are distributed on three different sides of the gas-liquid injector 1, which can make it easier to install other components at the gas and liquid inlets, and the structure design is more scientific. By distributing the gas channel outlet 106 , the first liquid channel outlet 102 and the second liquid channel outlet 104 together on the opposite sides of the gas channel inlet 105 , it is easier to connect the gas-liquid channel reducer 2 , which can make the structure more compact and the volume smaller. Small.

The multi-fluid atomizing device shown in FIGS. 1 and 2 further includes a first liquid flow regulating joint 4 and a second liquid flow regulating joint 6, and the liquid pipes on the first liquid flow regulating joint 4 and the second liquid flow regulating joint 6 All are equipped with flow regulating valve 7. The first liquid flow adjustment joint 4 is installed at the first liquid channel inlet 101 and is screwed with the gas-liquid injector 1 . The second liquid flow adjustment joint 6 is installed at the second liquid channel inlet 103 and is screwed with the gas-liquid injector 1 . By adjusting the flow regulating valve 7 and controlling the liquid delivery pressure, the real-time adjustment of the mixing ratio of the two liquids can be realized. The two liquid inlets are provided with flow regulating valves 7, which can adjust the input flow of each liquid separately, and realize the adjustment of the mixing ratio of the two liquids in combination with the liquid feeding pressure. The flow regulating valve in the attached drawing is only a schematic diagram of control: alternatives can choose a flow regulating valve based on any principle.

In one embodiment, please refer to FIG. 1 to FIG. 4 , the gas filter joint 5 is installed at the gas channel inlet 105 . Referring to FIG. 9 , one end of the gas pipe 501 of the gas filter joint 5 is provided with a dust filter 503 . Specifically, the gas channel inlet 105 of the gas-liquid injector 1 can be screwed to install the gas filter joint 5 . The outer side of the gas pipeline 501 of the gas filter joint 5 is threaded, and the gas filter joint 5 can be connected and fixed to the gas-liquid injector 1 through the fixing nut 502 . The gas channel inlet 105 can filter the input atomizing gas in advance through the gas filter joint 5, which ensures the purity of the atomizing gas, avoids unnecessary chemical reactions of impurities in the gas to the liquid, and also avoids the occurrence of unnecessary chemical reactions in the gas. The clogging of the gas feeding pipeline by the dust. Considering that the filter device needs to be cleaned regularly, the threaded detachable design adopted on the gas filter joint 5 can instantly replace and clean the gas filter joint 5, which improves the use efficiency of the filter device and the convenience of replacement. sex.

It can be understood that the gas channel 107 in this embodiment of the present invention may include one, two or more than three gas branches, and correspondingly, the gas delivery pipeline 203 includes one, two or more than three gas delivery branches, and the gas branches and The gas delivery branches are connected in a one-to-one correspondence; similarly, the first liquid channel 108 may include one, two or more than three first liquid branches, and correspondingly, the first liquid delivery pipeline 201 may include one, two or three The first liquid conveying branch above, the first liquid branch and the first liquid conveying branch are connected with each other in one-to-one correspondence; the second liquid channel 109 may include one, two or more than three second liquid branches, correspondingly, the first liquid branch The second liquid conveying pipeline 202 may include one, two or more than three second liquid conveying branches, and the second liquid conveying branches and the second liquid conveying branches communicate with each other in a one-to-one correspondence. When the gas channel 107 , the first liquid channel 108 , and the second liquid channel 109 in the embodiment of the present invention are designed in the form of multiple channels, the flow size and flow distribution of the fluid (including gas and liquid) can be changed more conveniently and effectively.

The mixed atomization method of the two kinds of liquids of the above-mentioned multi-fluid atomization device is as follows:

Please refer to FIG. 10 , two different liquids are respectively delivered to the corresponding liquid channel inlets of the gas-liquid injector 1 of the multi-fluid atomization device through the gas supply and pressurization of the gas unit, and the two liquids are passed through the liquid delivery pipe of the gas-liquid channel reducer 2 It is transported to the gas-liquid mixing chamber 302 in the gas-liquid mixing atomizing cap 3 for liquid mixing. At the same time, the gas unit transports a certain pressure of gas to the gas channel inlet corresponding to the gas-liquid injector 1 of the multi-fluid atomizing device, and the gas is accelerated through the gas-liquid channel reducer 2. The gas-liquid mixing chamber 302 in the cap 3. Finally, the mixed liquid is broken and atomized into small droplets under the action of the large aerodynamic force of the high-speed gas, and is ejected from the atomizing vapor outlet 304 of the gas-liquid mixing atomizing cap 3 .

The above-mentioned multi-fluid atomization device realizes the atomization of the liquid based on the high-speed air flow generated by the compressed gas, and can meet the needs of the mixed atomization of two different liquids. It can be understood that in order to realize the real-time atomization of three kinds of liquids and four kinds of liquids, the three channels of the above-mentioned multi-fluid atomization device (including 2 liquid channels, 2 liquid delivery pipelines, 1 gas channel and 1 gas On the basis of the delivery pipeline), it can be replaced with four channels (including 3 liquid channels, 3 liquid delivery pipelines, 1 gas channel and 1 gas delivery pipeline. Among them, the liquid channel and the liquid delivery pipeline correspond one-to-one connection) or five-channel (including 4 liquid channels, 4 liquid delivery pipelines, 1 gas channel and 1 gas delivery pipeline. Among them, the liquid channel and the liquid delivery pipeline are connected in one-to-one correspondence), so as to respectively Real-time mixed atomization of three and four liquids. Assuming that the gas-liquid injector 1 is a hexahedron, the gas-liquid injector 1 has a top surface, a bottom surface, a left side, a right side, a front side and a rear side. When there are three liquid inlet channels, the gas channels extend from the top surface. To the inside of the gas-liquid injector 1, the three liquid inlet channels extend from any three surfaces of the left side, right side, front side and rear side to the inside of the gas-liquid injector 1, then the three liquid inlet channels are viewed from above. The angle is T-shaped. When there are four liquid inlet channels, the gas channel extends from the top surface to the inside of the gas-liquid injector 1, and the four liquid inlet channels extend from the left side, right side, front side and rear side to the gas-liquid injector 1 respectively. Inside, the four liquid inlet channels are in a "cross" shape when viewed from above. Of course, a larger number of channels can also be realized, and the design methods of four channels and five channels are used as examples here.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as the present invention. the scope of protection of the invention.

Claims (8)

1. A multi-fluid atomization device is characterized by comprising a gas-liquid injector, a gas-liquid channel reducer and a gas-liquid mixing atomization cap;

the gas-liquid injector is provided with a gas passage, a first liquid passage and a second liquid passage;

the gas-liquid channel reducer is provided with a gas conveying pipeline, a first liquid conveying pipeline and a second liquid conveying pipeline, the gas-liquid channel reducer is connected with the gas-liquid injector, the gas channel is communicated with the gas conveying pipeline, the first liquid channel is communicated with the first liquid conveying pipeline, and the second liquid channel is communicated with the second liquid conveying pipeline;

the gas-liquid mixing atomization cap comprises a gas-liquid mixing cavity and an atomized gas outlet, the atomized gas outlet is communicated with the gas-liquid mixing cavity, the gas-liquid mixing atomization cap is connected with the gas-liquid channel reducer, and the gas conveying pipeline, the first liquid conveying pipeline and the second liquid conveying pipeline are communicated with the gas-liquid mixing cavity;

the gas conveying pipeline comprises a gas conveying pipeline inlet and a gas conveying pipeline outlet, and the area of the cross section of the gas conveying pipeline shows a change trend of firstly decreasing and then increasing along the direction from the gas conveying pipeline inlet to the gas conveying pipeline outlet;

the gas channel comprises a gas channel outlet, the first liquid channel comprises a first liquid channel outlet, the second liquid channel comprises a second liquid channel outlet, the section of the first liquid channel outlet is in an arc groove shape, the section of the second liquid channel outlet is in an arc groove shape, the first liquid channel outlet and the second liquid channel outlet are concentrically arranged, and the gas channel outlet is arranged at the center of a circle of the first liquid channel outlet and the second liquid channel outlet;

the first liquid channel and the second liquid channel are respectively arranged on two sides of the gas channel, the gas channel comprises a gas channel inlet, the first liquid channel comprises a first liquid channel inlet, the second liquid channel comprises a second liquid channel inlet, the gas channel inlet, the first liquid channel inlet and the second liquid channel inlet are distributed on three different surfaces of the gas-liquid injector, and the gas channel outlet, the first liquid channel outlet and the second liquid channel outlet are jointly distributed on opposite surfaces of the gas channel inlet.

2. The multi-fluid atomization device of claim 1 wherein the gas-liquid passage reducer comprises a connecting member, a passage body, and an outlet portion, the connecting member and the outlet portion are disposed at two ends of the passage body, the gas delivery line sequentially penetrates through the connecting member, the passage body, and the outlet portion, the first liquid delivery line and the second liquid delivery line both penetrate through the passage body, the outlet portion extends into the gas-liquid mixing chamber, and an end of the outlet portion away from the passage body is close to the atomized vapor outlet.

3. The multi-fluid atomization device of claim 2 where the connector is cylindrical in shape, the gas passage is circular in cross-section, the connector is disposed within the gas passage, and the connector and the gas passage are threadably connected.

4. The multi-fluid atomization device of claim 2 where the channel body is tapered, the connecting piece is arranged at the conical bottom of the channel body, the outlet part is arranged at the conical top of the channel body, the first liquid delivery line includes a first liquid delivery line inlet and a first liquid delivery line outlet, the second liquid conveying pipeline comprises a second liquid conveying pipeline inlet and a second liquid conveying pipeline outlet, the first liquid conveying pipeline inlet and the second liquid conveying pipeline inlet are arranged at the conical bottom of the channel body, the first liquid conveying pipeline outlet and the second liquid conveying pipeline outlet are both arranged at the conical top of the channel body, the inlet of the gas conveying pipeline is arranged at one end, far away from the channel body, of the connecting piece, and the outlet of the gas conveying pipeline is arranged at one end, far away from the channel body, of the outlet portion.

5. The multi-fluid atomization device of claim 1 where the gas passage inlet, the first liquid passage inlet, and the second liquid passage inlet are all circular in cross-section and the gas passage inlet, the first liquid passage inlet, and the second liquid passage inlet are all internally threaded.

6. The multi-fluid atomization device of claim 5 further comprising a first liquid flow regulating connector and a second liquid flow regulating connector, wherein the liquid lines of the first liquid flow regulating connector and the second liquid flow regulating connector are each provided with a flow regulating valve, the first liquid flow regulating connector is mounted at the first liquid passage inlet and is in threaded engagement with the gas-liquid injector, and the second liquid flow regulating connector is mounted at the second liquid passage inlet and is in threaded engagement with the gas-liquid injector.

7. The multi-fluid atomization device of claim 5 wherein the gas channel inlet is fitted with a gas filter fitting.

8. The multi-fluid atomization device of claim 1 where the first fluid passage comprises at least two first fluid branches and the second fluid passage comprises at least two second fluid branches;

the first liquid conveying pipeline comprises at least two first liquid conveying branches, and the second liquid conveying pipeline comprises at least two second liquid conveying branches;

the first liquid branches and the first liquid conveying branches are communicated with each other in a one-to-one correspondence manner;

the second liquid branch and the second liquid conveying branch are communicated with each other in a one-to-one correspondence mode.

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