CN212431418U - Liquid separator for air conditioner and air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioners, and discloses a knockout for air conditioner includes: the liquid separation head is internally provided with a liquid separation cavity; the liquid inlet pipe comprises a first straight pipe section and an expansion section, the first straight pipe section extends from the outside of the liquid dividing cavity to the inside of the liquid dividing cavity, the expansion section is communicated with the extending end of the first straight pipe section, and the expansion section is configured to reduce the pressure of fluid in the liquid inlet pipe. The refrigerant of this application is after getting into the feed liquor pipe, when the inflation section, and the pressure drop of refrigerant is favorable to eliminating bad flow states such as intermittent flow, laminar flow that exist in the refrigerant, makes the refrigerant flow even when dividing the liquid chamber to flow behind each reposition of redundant personnel branch pipe that gets into the knockout. The application also discloses an air conditioner.

Description

Liquid separator for air conditioner and air conditioner

Technical Field

The application relates to the technical field of air conditioners, for example to a knockout and air conditioner for air conditioner.

Background

The liquid separator is arranged between a throttling device and an evaporator of the air conditioner and is used for uniformly distributing the refrigerant flowing out of the throttling device, and the existing air conditioner adopts a Venturi liquid separator. Limited by the processing precision, large deviation may be generated among the deflection angles of a plurality of liquid outlet inclined holes of the venturi liquid separator, so that the flow of the refrigerant entering each liquid outlet inclined hole has large difference, and a good uniform flow distribution effect cannot be realized. A liquid separator adopted by the air conditioner comprises a liquid separating head and a plurality of branch pipes, wherein one end of each branch pipe is communicated with the liquid separating head, and the other end of each branch pipe is communicated with an evaporator.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: the refrigerant flows unevenly in the liquid dividing head, so that the flow in each branch pipe is unbalanced after the refrigerant enters the branch pipe.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a liquid separator for an air conditioner and the air conditioner, which are used for solving the problem of unbalanced refrigerant flow in each branch pipe of the liquid separator.

In some embodiments, a dispenser for an air conditioner includes: the liquid separation head is internally provided with a liquid separation cavity; the liquid inlet pipe comprises a first straight pipe section and an expansion section, the first straight pipe section extends from the outside of the liquid dividing cavity to the inside of the liquid dividing cavity, the expansion section is communicated with the extending end of the first straight pipe section, and the expansion section is configured to reduce the pressure of fluid in the liquid inlet pipe.

In some embodiments, the air conditioner includes a dispenser for an air conditioner as provided in the previous embodiments.

The liquid distributor for the air conditioner and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects: the liquid inlet pipe extends into the liquid separating cavity and comprises an expansion section, after the refrigerant enters the liquid inlet pipe, when the refrigerant passes through the expansion section, the pressure of the refrigerant is reduced, so that the poor flowing states of intermittent flow, stratified flow and the like in the refrigerant can be eliminated, the refrigerant flows uniformly when flowing to the liquid separating cavity, and the flow can be balanced after entering each branch pipe of the liquid separator. The air conditioner is provided with the liquid separator, so that the distribution of the refrigerant is more uniform, and the refrigeration capacity and efficiency of the air conditioner can be improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic cross-sectional view illustrating a dispenser for an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of another dispenser for an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a schematic cross-sectional view illustrating another dispenser for an air conditioner according to an embodiment of the present disclosure;

fig. 4 is a schematic cross-sectional view illustrating another dispenser for an air conditioner according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of another liquid separator for an air conditioner according to an embodiment of the present disclosure.

Reference numerals:

10. a liquid separation head; 11. a liquid separation cavity; 12. a first side wall; 120. an end face; 13. a second side wall; 20. A liquid inlet pipe; 21. an outlet; 22. a first throttle layer; 23. a first straight pipe section; 24. a second straight tube section; 25. an expansion section; 26. a third throttling layer; 30. a branch pipe; 31. an inlet; 40. a second throttle layer.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in fig. 4 and 5, an embodiment of the present disclosure provides a liquid dispenser for an air conditioner, including: liquid separation head 10 and liquid inlet pipe 20. The liquid separation head 10 is internally provided with a liquid separation cavity 11; the liquid inlet pipe 20 comprises a first straight pipe section 23 and an expansion section 25, the first straight pipe section 23 extends from the outside of the liquid separation chamber 11 to the inside of the liquid separation chamber 11, the expansion section 25 is communicated with the extending end of the first straight pipe section 23, and the expansion section 25 is configured to depressurize the fluid in the liquid inlet pipe 20.

The liquid separator is arranged between a throttling device and an evaporator of the air conditioner and is used for uniformly distributing the refrigerant flowing out of the throttling device. The refrigerant is throttled in the throttling device, flows out of the throttling device, enters the liquid inlet pipe 20, sequentially passes through the expansion section 25 and the first straight pipe section 23 of the liquid inlet pipe 20, then flows into the liquid distribution cavity 11, and the pressure of the refrigerant is reduced when the refrigerant passes through the expansion section 25, so that various unstable flowing states are eliminated, the flowing states are more uniform, and the uniform distribution of the liquid distributor is facilitated.

In some embodiments, as shown in connection with fig. 4, a third throttling layer 26 is provided within the expansion section 25, the third throttling layer 26 being configured to throttle fluid flowing through the expansion section 25. The third throttling layer 26 throttles the fluid in the expansion section 25, suppresses intermittent flow, stratified flow, elastic flow, annular flow, bubble flow, mixed flow, and the like in the refrigerant, and eliminates refrigerant noise and air flow noise, thereby making the refrigerant as liquid as possible and uniformly distributing the supercooled refrigerant. Optionally, the third throttling layer 26 is provided with a throttling channel, which is arranged obliquely. When the refrigerant passes through the inclined throttling hole channel, the inclined throttling hole channel has larger resistance to the refrigerant, the turbulent flow pressure reduction effect on the refrigerant is better, the refrigerant has super-cooling degree, and the gaseous refrigerant is easier to collide with the side wall of the throttling hole channel when passing through the inclined throttling hole channel, so that the gaseous refrigerant is changed into the liquid refrigerant, and the gaseous refrigerant entering the liquid distribution cavity 11 is reduced.

In some embodiments, the third throttling layer 26 is provided where the pipe diameter of the expansion section 25 is largest. Where the pipe diameter of the expansion section 25 is at its maximum, the pressure of the fluid is at its minimum and is more strongly throttled by the third throttling layer 26 when passing through the third throttling layer 26.

In some embodiments, the third throttling layer 26 is provided with a throttling channel. When the refrigerant passes through the throttling duct, part of the refrigerant is blocked by the third throttling layer 26, and part of the refrigerant passes through the throttling duct, so that the overall pressure of the refrigerant is reduced, and part of the gaseous refrigerant is changed into a liquid refrigerant after being throttled, thereby being beneficial to uniform flow of the refrigerant. Optionally, the aperture of the throttling channel is d1, and d1 is larger than or equal to 1mm and smaller than or equal to 2 mm. The aperture of the throttling pore passage of the third throttling layer 26 is in the range, which is beneficial to secondary decompression and throttling of the refrigerant just coming out of the throttling device.

Alternatively, the throttling channels of the third throttling layer 26 are arranged obliquely. When the refrigerant passes through the inclined throttling hole channel, the inclined throttling hole channel has larger resistance to the refrigerant, the turbulent flow pressure reduction effect on the refrigerant is better, the refrigerant has super-cooling degree, and the gaseous refrigerant is easier to collide with the side wall of the throttling hole channel when passing through the inclined throttling hole channel, so that the gaseous refrigerant is changed into the liquid refrigerant, and the gaseous refrigerant entering the liquid distribution cavity 11 is reduced.

In some embodiments, as shown in connection with fig. 5, the liquid inlet pipe 20 further includes: the second straight tube section 24 is communicated with the inlet 31 of the expansion section 25 and is configured to be communicated with a throttling device of an air conditioner. The second straight pipe section 24 is used for communicating the expansion section 25 with the throttling device, so that the refrigerant flowing out of the throttling device firstly enters the second straight pipe section 24 and then enters the expansion section 25 for pressure reduction. Optionally, the ratio of the pipe diameter of the expansion section 25 to the pipe diameter of the second straight pipe section 24 is 1.5 to 3.5. In the proportion range, after the refrigerant enters the expansion section 25 from the second straight pipe section 24, the pressure reduction effect can be realized, and the uniform flow of the refrigerant is facilitated.

In some embodiments, as shown in fig. 1 and 3, the extended end of the first straight pipe section 23 is provided with an outlet 21. The extending end of the first straight pipe section 23 refers to the end of the first straight pipe section 23 extending into the liquid separation chamber 11. An outlet 21 is arranged at the extending end of the first straight pipe section 23, and the refrigerant flows out of the outlet 21 after passing through the first straight pipe section 23 and enters the liquid separation cavity 11. The first straight pipe section 23 is a hollow structure, and the extending end is set to be open as the outlet 21, which is also convenient for processing and manufacturing the liquid inlet pipe 20. Optionally, the first straight pipe section 23 is perpendicular to the end face 120 of the liquid separation head 10. Thus, the refrigerant entering the liquid separation cavity 11 can be ensured to be in a vertical equal distribution state, the refrigerant flows towards the end surface 120 after flowing out from the outlet 21, and is uniformly blocked by the end surface 120 after meeting the end surface 120, and then the refrigerant keeps balanced pressure and flows back to the end surface 120.

In some embodiments, the dispenser further comprises: and a plurality of branch flow pipes 30 extending into the liquid distribution chamber 11, wherein an inlet 31 of each branch flow pipe 30 is staggered with an outlet 21 of the second straight pipe section 24. Thus, the refrigerant flows out of the outlet 21, reacts with the end surface 120, flows back to the end surface 120, flows to the inlets 31 of the plurality of branch flow pipes 30, and uniformly enters the branch flow pipes 30. By the embodiment, the transient pressure generated when the refrigerant instantaneously enters the liquid separator is disturbed, so that the pressure of the refrigerant at the inlet 31 of each branch pipe 30 is equalized, and the refrigerant quantity in each branch pipe 30 is equalized. Optionally, a plurality of branch manifolds 30 extend from the end surface 120 of the dispenser into the dispensing chamber 11. Thus, after the refrigerant flows out of the outlet 21 of the liquid inlet pipe 20, the refrigerant can enter the branch flow pipe 30 after being folded twice, which is beneficial to reducing the pressure of the refrigerant and eliminating various uneven flowing states. Optionally, the length direction of the branch flow pipe 30 is parallel to the length direction of the inlet pipe 20. Thus, the refrigerant can continue to flow to the next component in the same flow direction.

Optionally, the distance between the inlet 31 of the branch pipe 30 and the end surface 120 is greater than or equal to 10 mm. Therefore, on one hand, the refrigerant is convenient to be staggered with the outlet 21 of the liquid inlet pipe 20, and on the other hand, the refrigerant which flows uniformly after throttling can enter the inlet 31 of the branch flow pipe 30 in time. Optionally, the distance between the inlet 31 of the branch pipe 30 and the outlet 21 of the liquid inlet pipe 20 in the length direction of the liquid inlet pipe 20 is less than 8 mm. Thus, the throttling and pressure reducing effect on the refrigerant is better, and the refrigerant is more uniform when entering the inlet 31 of the branch pipe 30. Optionally, the inner wall of the branch flow dividing pipe 30 is provided with a limiting protrusion configured to limit a distance that a pipeline of the air conditioner is inserted in the branch flow dividing pipe 30.

In some embodiments, as shown in connection with FIG. 1, a second restriction layer 40 is provided in the fluid flow path between the outlet 21 of the first straight pipe section 23 and the inlet 31 of each branch pipe 30. When the refrigerant flows out from the outlet 21 of the first straight pipe section 23, the refrigerant meets the end surface 120 of the liquid separator, then flows back to the inlets 31 of the branch pipes 30, passes through the second throttling layer 40 on the liquid flow path between the outlet 21 of the first straight pipe section 23 and the inlets 31 of the branch pipes 30, the throttling of the second throttling layer 40 disturbs the instantaneous pressure of the refrigerant after the refrigerant returns from the end surface 120, and further the pressure of the refrigerant entering each branch pipe 30 is balanced.

In some embodiments, the branch pipes 30 extend into the corresponding spaces on the outer side wall of the inlet pipe 20. In this way, after the refrigerant flows out from the outlet 21 of the liquid inlet pipe 20, the refrigerant needs to be turned back to the space enclosed by the outer wall of the liquid inlet pipe 20 and the inner wall of the liquid dividing head 10 to flow to the inlet 31 of the liquid dividing branch pipe 30, and the second throttling layer 40 is conveniently arranged on the liquid flow path of the refrigerant, so that the refrigerant can pass through the second throttling layer 40 on the flow path between the outlet 21 of the liquid inlet pipe 20 and the inlet 31 of the liquid dividing branch pipe 30.

In some embodiments, the distance between the second restriction layer 40 and the inlet 31 of the branch pipe 30 is L1, and the distance between the second restriction layer 40 and the outlet 21 of the liquid inlet pipe 20 is L2, and L1 is L2. When L1 is equal to L2, it indicates that the distance from the second throttling layer 40 to the inlet 31 of the branch flow pipe 30 is equal to the distance from the second throttling layer 40 to the outlet 21 of the liquid inlet pipe 20, and the refrigerant flows a certain distance from the liquid inlet pipe 20, then enters the second throttling layer 40, is throttled and depressurized, then flows for a certain distance, and then enters the inlet 31 of the branch flow pipe 30.

In some embodiments, the second restriction layer 40 is provided with a restriction orifice. When the refrigerant passes through the throttling hole channel, part of the refrigerant is blocked by the second throttling layer 40, and part of the refrigerant passes through the throttling hole channel, so that the overall pressure of the refrigerant is reduced, and part of the gaseous refrigerant is changed into a liquid refrigerant after being throttled, thereby being beneficial to uniform flow of the refrigerant. Optionally, the aperture of the throttling hole of the second throttling layer 40 is d2, and d2 is larger than or equal to 1mm and smaller than or equal to 1.5 mm. The aperture of the throttling pore passage of the second throttling layer 40 is in the range, which is beneficial to the decompression and throttling of the refrigerant just coming out from the liquid inlet pipe 20 and the elimination of the poor flowing state in the refrigerant.

In some embodiments, the throttling orifices of the second throttling layer 40 are obliquely arranged. When the refrigerant passes through the inclined throttling hole channel, the inclined throttling hole channel has larger resistance to the refrigerant, the turbulent flow pressure reduction effect on the refrigerant is better, the refrigerant has super-cooling degree, and the gaseous refrigerant is easier to collide with the side wall of the throttling hole channel when passing through the inclined throttling hole channel, so that the gaseous refrigerant is changed into the liquid refrigerant, and the gaseous refrigerant entering the liquid separating cavity 11 is reduced.

Referring to fig. 3, an embodiment of the present disclosure provides a liquid dispenser of an air conditioner, including: the liquid separation head 10 is internally provided with a liquid separation cavity 11; the liquid inlet pipe 20 extends into the liquid separating cavity 11, and a first throttling layer 22 is arranged inside the liquid inlet pipe.

The refrigerant is throttled in the throttling device, flows out of the throttling device, enters the liquid inlet pipe 20, flows into the liquid separation cavity 11 through the liquid inlet pipe 20, is throttled again by the first throttling layer 22 when passing through the first throttling layer 22 of the liquid separation cavity 11, the resistance of the first throttling layer 22 enables the pressure of the refrigerant to be reduced, the refrigerant forms the supercooling degree, and the gas-phase refrigerant entering the liquid separation cavity 11 is reduced. Therefore, the system performance is improved, the pressure deviation which occurs in the moment that the refrigerant enters the liquid separating cavity 11 from the liquid inlet pipe 20 is avoided, and the refrigerant flows uniformly in the liquid separating cavity 11.

Alternatively, as shown in fig. 2, the liquid separation head 10 includes a first sidewall 12 and a second sidewall 13 connected to each other, the first sidewall 12 is enclosed into a cylindrical shape, the second sidewall 13 is enclosed into a tapered shape, and the liquid separation chamber 11 is enclosed by the first sidewall 12 and the second sidewall 13. The refrigerant enters the liquid separating chamber 11 enclosed by the first side wall 12 and the second side wall 13 from the liquid inlet pipe 20. Optionally, the liquid inlet pipe 20 passes through the second side wall 13 and extends into the liquid separating chamber 11. Optionally, the first sidewall 12 includes an end surface 120 that is perpendicular to the length of the inlet pipe 20. After the refrigerant enters the liquid separation chamber 11 from the liquid inlet pipe 20, part of the refrigerant flowing toward the end surface 120 flows back to the end surface 120 after meeting the end surface 120.

Optionally, the distance between the extending end of the liquid inlet pipe 20 and the end face 120 is L1, and L1 is greater than or equal to 5mm and less than or equal to 10 mm. In the range, the refrigerant can firstly enter one side of the liquid distribution cavity 11 close to the end face 120, then the refrigerant is uniformly filled in the liquid distribution cavity 11, pressure equalization is further formed to enter each branch flow distribution pipe 30, if the distance exceeds 10mm, the pressure equalization effect is invalid due to too close distance between the inlet 31 of the branch flow distribution pipe 30 and the outlet 21 of the liquid inlet pipe 20, and the bias flow phenomenon occurs; if the distance is less than 5mm, the flow circulation of the refrigerant in the liquid inlet pipe 20 is affected, and the load is increased. Optionally, the extending end of the liquid inlet pipe 20 corresponds to the center of the end surface 120. This is advantageous in that the refrigerant may uniformly act on the end surface 120 after flowing out of the liquid inlet pipe 20, and even if the refrigerant changes its flow direction, the refrigerant may be maintained in a uniform flow state.

In some embodiments, as shown in connection with FIG. 3, the first throttle layer 22 is provided with a throttle bore. When the refrigerant passes through the first throttling layer 22, part of the refrigerant is blocked by the first throttling layer 22, and part of the refrigerant passes through the throttling hole channel, so that the overall pressure of the refrigerant is reduced, wherein part of the gaseous refrigerant is changed into the liquid refrigerant after being throttled, and the uniform flow of the refrigerant is facilitated. Optionally, the aperture of the throttling pore passage is d, and d is larger than or equal to 1mm and smaller than or equal to 1.5 mm. In the aperture range, throttling and pressure reduction of the refrigerant are facilitated, and the refrigerant with the supercooling degree is formed. Optionally, the number of throttling openings is multiple and evenly distributed. Therefore, the pressure of the refrigerant can be balanced, and uniform flow distribution is facilitated.

In some embodiments, the restricted orifice is disposed obliquely to the length of the inlet pipe 20. When the refrigerant passes through the inclined throttling hole channel, the resistance of the inclined hole channel to the refrigerant is larger, the turbulent flow pressure reduction effect on the refrigerant is better, the refrigerant is easier to form the super-cooling degree, and the gaseous refrigerant is easier to collide with the side wall of the throttling hole channel when passing through the inclined throttling hole channel, so that the gaseous refrigerant is changed into the liquid refrigerant, the gaseous refrigerant entering the liquid separating cavity 11 is reduced, and the system performance is improved.

In some embodiments, the first restriction layer 22 is plural in number and spaced along the length of the liquid inlet pipe 20. The refrigerant flows in the liquid inlet pipe 20 and passes through the plurality of first throttling layers 22, and the refrigerant is throttled by each first throttling layer 22, so that the pressure of the refrigerant entering the liquid separating cavity 11 is more balanced, and the refrigerant flows more uniformly. Optionally, the spacing between the first throttle layers 22 is L2, 5mm L2 mm 10 mm. Within the range, the throttling effect on the refrigerant is better.

Optionally, the number of first throttle layers 22 is three. In consideration of maintaining a certain flow power of the refrigerant by combining the reasonable volume of the liquid separation head 10 and the length of the liquid inlet pipe 20 extending into the liquid separation chamber 11, three first throttling layers 22 are arranged in the liquid inlet pipe 20, so that the refrigerant flows through the three first throttling layers 22 uniformly.

In some embodiments, the direction of inclination of the throttling openings of adjacent first throttling layers 22 is different. Thus, when the refrigerant passes through the adjacent first throttling layers 22, the flow direction of the refrigerant is disordered by the adjacent first throttling layers 22 in different directions, and after the refrigerant is disordered for multiple times, the refrigerant pressure is lower than that of the refrigerant passing through only one first throttling layer 22, so that the refrigerant pressure is more balanced. Alternatively, the plurality of throttling holes in each first throttling layer 22 may be inclined in different directions. The inclined directions of the throttling hole channels on each first throttling layer 22 are different, so that the flowing direction of the refrigerant can be disturbed better. Optionally, the plurality of throttling openings in each first throttling layer 22 are randomly distributed. Thus, the refrigerant is disturbed favorably.

The embodiment of the disclosure also provides an air conditioner, which comprises the liquid distributor for the air conditioner provided by any one of the embodiments. The air conditioner carries out secondary throttling depressurization on the refrigerant flowing out of the throttling device through the liquid distributor for the air conditioner, so that the refrigerant flows more uniformly after passing through the liquid distributor, the refrigerant can also form a supercooling degree, the gas-phase refrigerant entering into a liquid distributing cavity is reduced, the system performance is favorably improved, and the heat exchange effect of the refrigerant is improved.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A dispenser for an air conditioner, comprising:

the liquid separation head is internally provided with a liquid separation cavity;

the liquid inlet pipe comprises a first straight pipe section and an expansion section, the first straight pipe section extends from the outside of the liquid dividing cavity to the inside of the liquid dividing cavity, the expansion section is communicated with the extending end of the first straight pipe section, and the expansion section is configured to reduce the pressure of fluid in the liquid inlet pipe.

2. The liquid separator according to claim 1, wherein a third throttling layer is provided within the expansion stage, the third throttling layer being configured to throttle fluid flowing through the expansion stage.

3. The liquid separator according to claim 2, wherein the third throttling layer is provided at the maximum pipe diameter of the expansion section.

4. The liquid distributor according to claim 2, wherein the third throttling layer is provided with throttling openings.

5. The liquid separator according to claim 1, wherein the liquid inlet pipe further comprises:

a second straight tube section in communication with an inlet of the expansion section configured to communicate with a throttling device of the air conditioner.

6. The liquid distributor according to claim 5, wherein the ratio of the pipe diameter of the expansion section to the pipe diameter of the second straight pipe section is 1.5 to 3.5.

7. The liquid distributor according to any one of claims 1 to 6, wherein the extended end of the first straight section is provided with an outlet.

8. The dispenser according to claim 7, further comprising:

and the branch distribution pipes extend into the liquid distribution cavity, and the inlet of each branch distribution pipe is staggered with the outlet of the first straight pipe section.

9. The liquid distributor according to claim 8, wherein a second restriction layer is provided in the liquid flow path between the outlet of the first straight pipe section and the inlet of each of the branch pipes.

10. An air conditioner, characterized by comprising the dispenser for an air conditioner according to any one of claims 1 to 9.

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