CN211964641U - A sprayer and an outdoor unit of an air conditioner - Google Patents

Abstract

The utility model provides a sprayer and an air conditioner outdoor unit. The sprayer comprises: a sprayer, comprising an air atomizing nozzle and an ejector, the water inlet of the air atomizing nozzle and the gas-liquid of the ejector The two-phase flow outlets are communicated. The beneficial effects of the utility model: the water inlet of the gas atomizing nozzle is connected with an ejector, specifically, the gas-liquid two-phase flow outlet of the ejector is connected. The gas-liquid mixed fluid is ejected by the injector. Based on this, the two-phase material that is uniformly mixed with the gas and the liquid is more conducive to being atomized by the air atomizing nozzle, which can improve the atomization effect of the atomizer.

Description

A sprayer and an outdoor unit of an air conditioner

technical field

The utility model relates to the technical field of spraying, in particular to a sprayer and an outdoor unit of an air conditioner.

Background technique

The sprayer is a common spraying equipment that can atomize liquid and is widely used in household, agricultural, medical and other occasions. At present, the sprayer is mainly pressurized by setting a nozzle. After encountering obstacles, small water droplets are formed and sprayed out in the form of mist. At present, when the sprayer is spraying, the water flow is directly introduced into the nozzle for pressurized spraying. Therefore, the spray effect is very dependent on the structure of the nozzle. Usually, the water flow is directly increased. The spray effect formed by pressure is poor.

Utility model content

The problem solved by the utility model is how to improve the spraying effect.

In order to solve the above problems, the present invention provides a sprayer including an air atomizing nozzle and an ejector, wherein the water inlet of the air atomizing nozzle is communicated with the gas-liquid two-phase flow outlet of the ejector.

In this technical solution, an ejector is connected to the water inlet of the air atomizing nozzle, specifically, the gas-liquid two-phase flow outlet of the ejector is connected, and when the air atomizing nozzle performs spraying, the ejector is processed. The gas-liquid mixed fluid for ejection treatment, based on this, the two-phase substance in which the gas and the liquid are uniformly mixed is more conducive to being atomized by the air atomizing nozzle, which can improve the atomization effect of the atomizer.

Further, the ejector includes a receiving cavity and a mixing cavity, the receiving cavity is provided with a gas inlet and an ejected liquid inlet of the ejector, and the mixing cavity is located in the between the receiving cavity and the gas-liquid two-phase outflow port, and the mixing cavity communicates with the receiving cavity and the gas-liquid two-phase outflow port.

In this technical solution, the gas jet flowing out of the receiving cavity and the ejected liquid enter the mixing cavity for mixing, so as to improve the mixing effect, so that the gas jet and the ejected liquid can be fully mixed. The gas-liquid two-phase flow flowing out of the phase flow outlet is easier to be atomized by the air atomizing nozzle.

Further, the ejector further includes a nozzle, the nozzle is located in the receiving cavity, and the nozzle is connected to the gas inlet.

In this technical solution, the ejector further includes a nozzle, wherein the nozzle is located in the receiving cavity, and the nozzle is connected with the gas inlet, so that the high-pressure gas introduced from the gas inlet can pass through the nozzle to increase the injection speed of the gas , so as to form a gas jet, or increase the ejection speed of the gas jet, so that the high-speed gas jet can more quickly entrain the ejected liquid from the inlet of the ejected liquid, so as to facilitate the mixing of the ejected liquid and the gas jet .

Further, the inner diameter of the receiving cavity gradually decreases from an end far from the mixing cavity to an end close to the mixing cavity, and the maximum inner diameter of the mixing cavity is smaller than or equal to the receiving cavity. The gas inlet and the injected liquid inlet are both located at one end of the receiving cavity away from the mixing cavity.

In this technical solution, in this embodiment, the inner diameter of the receiving cavity gradually decreases from the end far from the mixing cavity to the end close to the mixing cavity, so that when a gas jet is introduced into the receiving cavity, the gas In the process of circulation, the jet can better entrain the ejected liquid, and at the same time, it can guide the ejected liquid into the mixing chamber, and perform a certain degree of gas-liquid mixing before the mixing chamber. After the liquid enters the mixing chamber, based on the fact that the maximum inner diameter of the mixing chamber is less than or equal to the minimum inner diameter of the receiving chamber, the gas jet and the injected liquid can be mixed in a narrower mixing chamber cavity, so that the This makes the mixing of the two-phase flow more uniform and more conducive to being atomized.

Further, the ejector further includes a diffuser cavity, the diffuser cavity is located between the mixing cavity and the gas-liquid two-phase flow outlet, and the diffuser cavity and the mixing cavity The cavity is communicated with the gas-liquid two-phase flow outlet.

In this technical solution, the ejector further includes a diffuser cavity, wherein the diffuser cavity is located between the mixing cavity and the gas-liquid two-phase flow outlet to diffuse the two-phase flow out of the mixing cavity , so that the flow rate of the two-phase flow slows down and the pressure rises. After the mixed two-phase flow passes through the diffuser cavity, the pressure is higher than the pressure in the receiving cavity. In the ejector, the mixed two-phase flow The flow pressure can even exceed the working fluid pressure due to the water agent effect, so that the atomization effect is better after the two-phase flow enters the air atomizing nozzle.

Further, the inner diameter of the diffuser cavity gradually increases from an end close to the mixing cavity to an end close to the gas-liquid two-phase flow outlet.

In this technical solution, the inner diameter of the diffuser cavity gradually increases from the end close to the mixing cavity to the end close to the gas-liquid two-phase flow outlet, so that through the gradually enlarged diffuser cavity The inner cavity diffuses the two-phase flow flowing out of the mixing cavity, and flows out through the gas-liquid two-phase outflow port. Meanwhile, in this technical solution, the structure of the diffusing cavity is relatively simple, and the effect of diffusing is better.

In addition, the present invention provides an air conditioner outdoor unit, which includes the above-mentioned sprayer.

The air conditioner outdoor unit of the present invention has the same advantages as the above-mentioned sprayer relative to the prior art, which will not be repeated here.

Further, it also includes an outer unit body and a water storage container, and the water storage container is suitable for being connected with the drain pipe of the indoor unit through the first pipe.

In this technical solution, by arranging a water storage container and connecting the drain pipe of the indoor unit, the condensed water generated by the heat exchanger in the indoor unit can be conveniently collected, so that the corresponding rational utilization can be carried out.

Further, it also includes an ejection pipeline, one end of the ejection pipeline is inserted into the water storage container, and the other end of the ejection pipeline is connected to the ejected liquid inlet of the sprayer, and the The air atomizing nozzle of the atomizer is located inside the outer machine body, and the gas inlet of the atomizer is adapted to be connected to an air inlet device through a second pipeline.

In this technical solution, after the gas inlet of the atomizer introduces the airflow, the gas jet in the ejector in the atomizer will entrain the condensed water in the water storage container connected to the inlet of the ejected liquid, so that the ejected liquid will be sucked. Condensed water is introduced into the inlet to form a gas-liquid two-phase flow of gas and condensed water, wherein the air atomizing nozzle of the sprayer is located inside the outer machine body, and the condensed water is atomized through the air atomizing nozzle of the sprayer, spraying. The outgoing water mist can be sprinkled on the condenser inside the outer unit body to exchange heat on the surface of the condenser and increase the subcooling degree of the refrigerant at the outlet of the condenser, so as to achieve the purpose of enhancing the refrigeration function of the air conditioner, which can improve the performance of the air conditioner. cooling energy efficiency and save electricity.

Further, the sprayer includes a plurality of the air atomizing nozzles, and the plurality of the air atomizing nozzles are distributed in a plurality of regions in the outer body.

In this technical solution, a plurality of air atomizing nozzles are distributed in a plurality of areas in the outer unit body, which can more conveniently spray a plurality of areas of the condenser, thereby further improving the refrigeration energy efficiency.

Further, an installation bracket is provided on the outer unit body, and the water storage container is installed on the installation bracket.

In this technical solution, by arranging a mounting bracket on the main body of the external machine, the stable installation of the water storage container can be facilitated.

Description of drawings

Fig. 1 is the structural representation of the external unit of the air conditioner described in the embodiment of the present utility model;

FIG. 2 is a schematic structural diagram of an ejector in an embodiment of the present invention.

In the figure: 1-air atomizing nozzle; 2-ejector; 201-gas-liquid two-phase flow outlet; 202-accepting cavity; 2021-gas inlet; 2022-ejected liquid inlet; 203-mixing cavity 204-nozzle; 205-diffuser cavity; 3-outer body; 4-water storage container; 5-first pipeline; 6-ejection pipeline; 7-second pipeline; 8-air intake device; 9- Mount the bracket.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

At the same time, it should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances so that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein.

1 and 2, the present invention proposes a sprayer, including an air atomizing nozzle 1 and an ejector 2, the water inlet of the air atomizing nozzle 1 and the gas-liquid two of the ejector 2 The phase flow outlet 201 communicates.

In the related art, when the sprayer sprays, the water flow is directly introduced into the spray head for pressurized spraying, so the spray effect is very dependent on the structure of the spray head. Usually, the spray effect formed by directly pressurizing the water flow is poor.

Based on this, the embodiment of the present invention proposes a sprayer. An ejector 2 is connected to the water inlet of the air atomizing nozzle 1. When the atomizing nozzle 1 sprays, it processes the gas-liquid mixed fluid that is ejected and processed by the ejector 2. Based on this, the two-phase material that is uniformly mixed with gas and liquid is more conducive to being atomized by the air atomizing nozzle 1, so that the This can improve the atomization effect of the nebulizer.

Under normal circumstances, the ejector 2 includes a gas inlet 2021 and an ejected liquid inlet 2022, wherein the ejected liquid inlet 2022 is suitable for connecting a water storage container or a water source through a corresponding pipeline, so as to carry out the ejector 2 The gas inlet 2021 is suitable for connecting the air intake device such as a blower through the corresponding gas pipeline, so as to be used for the ejector 2 to introduce the gas jet. After the ejector 2 introduces the gas jet, the jet turbulence diffuses effect, so as to entrain the surrounding fluid, and the entrained fluid is the ejected liquid. Specifically, the ejected liquid enters the ejector 2 through the ejected liquid inlet 2022, thereby mixing with the gas jet to form a two-phase The flow is thus introduced into the air atomizing nozzle 1 to enable sufficient atomization by the air atomizing nozzle 1, thereby facilitating the formation of the spray.

In an optional embodiment of the present invention, the ejector 2 includes a receiving cavity 202 and a mixing cavity 203, and the receiving cavity 202 is provided with a gas inlet of the ejector 2 2021 and the injected liquid inlet 2022, the mixing chamber 203 is located between the receiving chamber 202 and the gas-liquid two-phase outlet 201, and the mixing chamber 203 is connected to the receiving chamber 202 and The gas-liquid two-phase flow outlet 201 is in communication.

Referring to FIG. 2, in this embodiment, the ejector 2 includes a receiving cavity 202, and the receiving cavity 202 includes an outer wall of the receiving cavity and a receiving cavity wrapped by the outer wall of the receiving cavity, so that the receiving cavity 202 forms a cavity The structure is used for the circulation of gas and liquid, and the gas inlet 2021 and the ejected liquid inlet 2022 of the ejector 2 are provided on the receiving cavity 202, so that the gas jet introduced from the gas inlet 2021 And the ejected liquid flow, such as water flow, introduced from the ejected liquid inlet 2022 flows into the cavity in the receiving cavity 202, wherein the ejector 2 further includes a mixing cavity 203, and the mixing cavity 203 includes The outer wall of the mixing chamber and the mixing cavity wrapped by the outer wall of the mixing chamber, so that the gas and liquid flowing out from the receiving chamber 202 can be fully mixed, and the mixing chamber 203 is specifically located in the receiving chamber 202 and the gas-liquid two-phase flow The outlet 201 is directly connected. In this embodiment, the inlet of the mixing chamber 203 is directly connected to the receiving chamber 202, so that the gas jet flowing out of the receiving chamber 202 and the injected liquid enter the mixing chamber 203 for mixing, thereby The mixing effect is improved, so that the gas jet and the ejected liquid can be fully mixed, so that the gas-liquid two-phase flow flowing out of the gas-liquid two-phase flow outlet 201 is more easily atomized by the air atomizing nozzle 1 .

In an optional embodiment of the present invention, the ejector 2 further includes a nozzle 204, the nozzle 204 is located in the receiving cavity 202, and the nozzle 204 is connected to the gas inlet 2021 .

Referring to FIG. 2 , in this embodiment, the ejector 2 further includes a nozzle 204 , wherein the nozzle 204 is located in the receiving cavity 202 , and the nozzle 204 is connected to the gas inlet 2021 so as to be introduced from the gas inlet 2021 The high-pressure gas can pass through the nozzle 204 to increase the injection speed of the gas to form a gas jet, or increase the injection speed of the gas jet. In this way, the high-speed gas jet can be drawn from the injected liquid inlet 2022 more quickly. The ejected liquid is convenient to mix the ejected liquid with the gas jet.

In an optional embodiment of the present invention, the inner diameter of the receiving cavity 202 gradually decreases from an end away from the mixing cavity 203 to an end close to the mixing cavity 203, and the mixing cavity The maximum inner diameter of the cavity 203 is less than or equal to the minimum inner diameter of the receiving cavity 202 , and the gas inlet 2021 and the injected liquid inlet 2022 are both located at the receiving cavity 202 away from the mixing cavity. one end of the body 203.

Referring to FIG. 2 , in this embodiment, the inner diameter of the receiving cavity 202 gradually decreases from the end away from the mixing cavity 203 to the end close to the mixing cavity 203 . As shown in FIG. 2 , the receiving cavity 202 The inner diameter gradually decreases from the left end to the right end. Based on the fact that the receiving cavity 202 includes the outer wall of the receiving cavity and the receiving cavity wrapped by the outer wall of the receiving cavity, the shape of the receiving cavity is consistent with the shape of the outer wall of the receiving cavity. In this embodiment, The inner diameter of the receiving cavity 202 gradually decreases from one end to the other end, that is, the receiving cavity gradually becomes narrower from one end to the other end, wherein the mixing cavity 203 is connected to the smallest inner diameter. Accordingly, the gas inlet 2021 and The ejected liquid inlets 2022 are all located at one end of the receiving cavity 202 away from the mixing cavity 203 . In this embodiment, when the nozzle 204 is provided, the nozzle 204 is also located far away from the receiving cavity 202 . At one end of the mixing chamber 203, when the gas jet is introduced into the receiving chamber 202, the gas jet can better entrain the injected liquid during the circulation process, and can guide the injected liquid into the mixing chamber 203, and a certain degree of gas-liquid mixing is performed before the mixing chamber 203. After the gas jet and the injected liquid enter the mixing chamber 203, at the same time, in this embodiment, the maximum inner diameter of the mixing chamber 203 Less than or equal to the minimum inner diameter of the receiving cavity 202, based on the mixing cavity 203 including the outer wall of the mixing cavity and the mixing cavity wrapped by the outer wall of the mixing cavity, and the shape of the mixing cavity is consistent with the shape of the outer wall of the mixing cavity. In the embodiment, the maximum inner diameter of the mixing cavity 203 is smaller than or equal to the minimum inner diameter of the receiving cavity 202, that is, the overall cavity inner diameter of the mixing cavity of the mixing cavity 203 is small, so that the gas jet and the ejected liquid can be Mixing is carried out in a narrower mixing cavity 203 , so that the mixing of the two-phase flow is more uniform, which is more conducive to being atomized.

In an optional embodiment of the present invention, the ejector 2 further includes a diffuser cavity 205, and the diffuser cavity 205 is located between the mixing cavity 203 and the gas-liquid two-phase outflow port 201 , and the diffuser cavity 205 communicates with the mixing cavity 203 and the gas-liquid two-phase outflow port 201 .

Referring to FIG. 2 , in this embodiment, the ejector 2 further includes a diffusing cavity 205, and the diffusing cavity 205 includes an outer wall of the diffusing cavity and a diffusing cavity wrapped by the outer wall of the diffusing cavity, so as to expand the pressure The cavity 205 forms a cavity structure similar to the mixing cavity 203 and the receiving cavity 202 to diffuse the gas-liquid two-phase flow, wherein the diffusing cavity 205 is located between the mixing cavity 203 and the gas-liquid two-phase flow. Between the two-phase flow outlets 201, the two-phase flow flowing out of the mixing cavity 203 is diffused, so that the flow rate of the two-phase flow is slowed down and the pressure is increased, and the mixed two-phase flow passes through the diffusion cavity 205. Then, the pressure is higher than the pressure in the receiving cavity 202. In the ejector 2, the mixed two-phase flow pressure can even exceed the working fluid pressure due to the effect of the water agent, so that after the two-phase flow enters the air atomizing nozzle 1 , the atomization effect is better.

In an optional embodiment of the present invention, the inner diameter of the diffuser cavity 205 gradually increases from the end close to the mixing cavity 203 to the end close to the gas-liquid two-phase outflow port 201 .

Referring to FIG. 2 , in this embodiment, the inner diameter of the diffuser cavity 205 gradually increases from the end close to the mixing cavity 203 to the end close to the gas-liquid two-phase outlet 201 , as shown in the figure , the inner diameter of the diffuser cavity 205 gradually increases from the left end to the right end. Based on the fact that the diffuser cavity 205 includes the outer wall of the diffuser cavity and the diffuser cavity wrapped by the outer wall of the diffuser cavity, the shape of the diffuser cavity is the same as that of the diffuser cavity. The shape of the outer wall is the same. In this embodiment, the inner diameter of the diffuser cavity 205 gradually decreases from one end to the other end, that is, the inner diameter of the diffuser cavity gradually expands from one end to the other end, so that the gas-liquid two-phase In this embodiment, the left end of the diffusion cavity 205, that is, the end with the smaller inner diameter, is directly connected to the mixing cavity 202, and the right end of the diffusion cavity 205, that is, the end with the larger inner diameter, is connected to the mixing cavity 202. The interface structure of the gas-liquid two-phase flow outlet 201 is described, so as to connect the air atomizing nozzle 1 through the corresponding pipeline through the interface structure, so as to form the communication between the ejector 2 and the air atomizing nozzle 1. The inner cavity of the pressure cavity body 205 whose inner diameter gradually expands diffuses the two-phase flow flowing out of the mixing cavity body 203 and flows out through the gas-liquid two-phase flow outlet 201. In this embodiment, the structure of the pressure-diffusing cavity 205 is relatively Simple, good diffusion effect.

An air conditioner outdoor unit according to another embodiment of the present invention includes the above-mentioned sprayer, so as to achieve various beneficial effects in the embodiments of the present invention.

In an optional embodiment of the present invention, the outdoor unit of the air conditioner further includes an outer unit body 3 and a water storage container 4 , and the water storage container 4 is adapted to be connected to the drainage pipe of the indoor unit through the first pipe 5 .

In the related art, when the air conditioner is in cooling operation, the heat exchanger of the indoor unit will generate condensed water, so that the condensed water is discharged by setting a drain pipe, and the temperature of the condensed water is usually lower than the current ambient temperature, and the related In the air conditioner, the condensed water is not used reasonably, which results in a certain degree of waste.

Referring to FIG. 1 , in this embodiment, the outdoor unit of the air conditioner includes an outer unit body 3 and a water storage container 4 , wherein the water storage container 4 is adapted to be connected to the drain pipe of the indoor unit through a first pipe 5 . In this embodiment, the first A pipe 5 can be a drain hose, so that the condensed water generated by the heat exchanger of the indoor unit can be conveniently collected through the arrangement of the water storage container 4, so that it can be used reasonably accordingly.

Wherein, a mounting bracket 9 is provided on the outer unit body 3 , and the water storage container 4 is mounted on the mounting bracket 9 .

1 , the outer side of the outer body 3 is connected to the mounting bracket 9 by bolts, and the bottom of the water storage container 4 is provided with feet, which are connected to the mounting bracket 9 by bolts, thereby facilitating the stable installation of the water storage container 4 .

In an optional embodiment of the present invention, the outdoor unit of the air conditioner further includes an ejection line 6, one end of the ejection line 6 is inserted into the water storage container 4, and the ejection line 6 The other end is connected to the ejected liquid inlet 2022 of the atomizer, the air atomizing nozzle 1 of the atomizer is located inside the outer body 3, and the gas inlet 2021 of the atomizer is suitable for passing through the second pipe 7 Connect the air intake 8.

Referring to FIG. 1 , in this embodiment, the outdoor unit of the air conditioner includes an ejection line 6 , wherein one end of the ejection line 6 is inserted into the water storage container 4 , preferably at the bottom of the water storage container 4 . , so as to conduct water when there is condensed water in the water storage container 4, and at the same time, the other end of the ejection pipeline 6 is connected to the ejected liquid inlet 2022 of the atomizer 2, and at the same time, the gas inlet 2021 of the atomizer is suitable for passing through the first The two pipelines 7 are connected to the air intake device 8. In the embodiment of the present invention, the air conditioner external unit may include a second pipeline 7 and an air intake device 8, so as to input air flow to the gas air inlet 2021 of the atomizer. When the ejector 2 has a nozzle 204, the air intake device 8 can use a blowing device such as a fan to input gas with a low air flow rate, and generate a gas jet through the nozzle 204, or use a high-pressure gas generating device to further pass through the nozzle 204. Improve the flow rate of the gas jet, when the ejector 2 is not provided with the nozzle 204, the air inlet device 8 adopts a high-pressure gas generating device to directly generate the gas jet, after the gas inlet 2021 of the atomizer is introduced into the air flow, through the atomizer. The gas jet in the ejector 2 entrains the condensed water in the water storage container 4 connected by the ejected liquid inlet 2022, so that the condensed water is introduced into the ejected liquid inlet 2022, thereby forming a gas-condensed water connection. Gas-liquid two-phase flow, wherein the air atomizing nozzle 1 of the sprayer is located inside the outer machine body 3, and the condensed water is atomized through the air atomizing nozzle 1 of the sprayer, and the sprayed water mist can be sprinkled on the outer machine body 3 On the internal condenser, heat exchange is performed on the surface of the condenser to increase the subcooling degree of the refrigerant at the outlet of the condenser, so as to achieve the purpose of enhancing the refrigeration function of the air conditioner, which can improve the refrigeration energy efficiency of the air conditioner and save electricity.

Wherein, a diffusing cavity 205 is arranged after the mixing cavity 203. During the process of diffusing the two-phase flow mixed in the mixing cavity 203 by the diffusing cavity 205, the temperature of the diffused two-phase flow can be lower than that of the storage The temperature of the condensed water in the water container 4, on the one hand, the pressure of the two-phase flow formed by the diffusion is higher, so that the atomization effect of the air atomizing nozzle 1 is better, so that the atomized condensed water can be sprinkled more uniformly outside On the condenser in the main body 3, the subcooling degree of the refrigerant at the outlet of the condenser is improved. On the other hand, the temperature of the two-phase flow after the diffusion is lower than the temperature of the condensed water, which can further Improve the refrigerant subcooling degree at the condenser outlet, thereby further improving the cooling energy efficiency of the air conditioner and saving electricity.

In an optional embodiment of the present invention, the sprayer includes a plurality of the air atomizing nozzles 1 , and the plurality of the air atomizing nozzles 1 are distributed in a plurality of regions in the outer machine body 3 .

1, in this embodiment, there are multiple air atomizing nozzles 1, and the gas-liquid two-phase outflow port 201 of the atomizer is connected to the multiple air atomizing nozzles 1 through pipelines, so that the air atomizing nozzle 1 and the ejector are connected 2 is connected, wherein, a plurality of air atomizing nozzles 1 are distributed in a plurality of areas in the outer machine body 3, in this embodiment, a plurality of air atomizing nozzles 1 are evenly arranged in the outer machine body 3, so that more It is convenient to spray multiple areas of the condenser to further improve the cooling energy efficiency.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be based on the scope defined by the claims.

Claims (10)

1. The sprayer is characterized by comprising an air atomizing nozzle (1) and an ejector (2), wherein a water inlet of the air atomizing nozzle (1) is communicated with a gas-liquid two-phase outflow port (201) of the ejector (2).

2. Nebulizer according to claim 1, characterized in that the ejector (2) comprises a receiving chamber (202) and a mixing chamber (203), the receiving chamber (202) is provided with a gas inlet (2021) and an ejected liquid inlet (2022) of the ejector (2), the mixing chamber (203) is located between the receiving chamber (202) and the two-phase gas-liquid outlet (201), and the mixing chamber (203) communicates with the receiving chamber (202) and the two-phase gas-liquid outlet (201).

3. Nebulizer according to claim 2, characterized in that the ejector (2) further comprises a nozzle (204), the nozzle (204) being located inside the receiving cavity (202), the nozzle (204) being connected to the gas inlet (2021).

4. A nebulizer as claimed in claim 2, wherein the internal diameter of the receiving chamber (202) decreases from the end remote from the mixing chamber (203) to the end proximate to the mixing chamber (203), the maximum internal diameter of the mixing chamber (203) is less than or equal to the minimum internal diameter of the receiving chamber (202), and the gas inlet (2021) and the ejected liquid inlet (2022) are both located at the end of the receiving chamber (202) remote from the mixing chamber (203).

5. The nebulizer of any one of claims 2 to 4, wherein the ejector (2) further comprises a diffuser cavity (205), the diffuser cavity (205) being located between the mixing cavity (203) and the two-phase gas-liquid stream outlet (201), and the diffuser cavity (205) being in communication with the mixing cavity (203) and the two-phase gas-liquid stream outlet (201).

6. Nebulizer according to claim 5, characterized in that the inner diameter of the diffuser cavity (205) increases gradually from the end close to the mixing cavity (203) to the end close to the gas-liquid two-phase outflow opening (201).

7. An outdoor unit for an air conditioner, comprising the sprayer according to any one of claims 1 to 6.

8. The outdoor unit of claim 7, further comprising an outdoor unit body (3) and a water storage container (4), wherein the water storage container (4) is suitable for being connected with a drain pipe of the indoor unit through a first pipeline (5).

9. The outdoor unit of claim 8, further comprising an injection pipeline (6), wherein one end of the injection pipeline (6) is inserted into the water storage container (4), the other end of the injection pipeline (6) is connected with an injected liquid inlet (2022) of the sprayer, the air atomizing nozzle (1) of the sprayer is located inside the outdoor unit body (3), and the gas inlet (2021) of the sprayer is adapted to be connected with the gas inlet device (8) through a second pipeline (7).

10. The outdoor unit of claim 9, wherein the atomizer comprises a plurality of air atomizing nozzles (1), and the plurality of air atomizing nozzles (1) are distributed in a plurality of regions in the outdoor unit body (3).

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