CN116007244A - Liquid separation structure and heat exchange assembly with same - Google Patents

Abstract

The invention provides a liquid separation structure and a heat exchange assembly with the same, wherein the liquid separation structure comprises: the first liquid separation shell is provided with a liquid inlet, a communication port and a first liquid separation cavity communicated with the liquid inlet and the communication port, the liquid inlet is opposite to the first liquid separation cavity, and the communication port is arranged between the liquid inlet and the first liquid separation cavity; the second liquid separation shell is provided with an installation cavity, at least part of the first liquid separation shell is installed in the installation cavity, the part of the first liquid separation shell positioned in the installation cavity is arranged at intervals with the inner wall of the installation cavity to form a second liquid separation cavity, and the communication port is communicated with the second liquid separation cavity; wherein, the one end that the intercommunication mouth was kept away from to the second divides the liquid shell is provided with the branch liquid mouth, divides liquid mouth and second liquid chamber intercommunication. According to the technical scheme provided by the invention, the technical problem that the liquid separation structure in the prior art is easy to cause uneven liquid separation can be solved.

Description

Liquid separation structure and heat exchange assembly with same

Technical Field

The invention relates to the technical field of liquid separation structures, in particular to a liquid separation structure and a heat exchange assembly with the same.

Background

At present, in a refrigeration system, two-phase refrigerant throttled by an expansion valve is distributed to different flow paths of an evaporator by a liquid separator, and gas and liquid phases can be separated in the flowing process of the refrigerant, so that the problem of uneven refrigerant distribution is caused. The rationality of the design of the knockout determines the uniformity of the flow distribution of the refrigerant in different flow paths, thereby affecting the performance of the refrigeration system.

However, in the case of the liquid separator in the prior art, uneven liquid separation is easy to occur, when uneven distribution occurs, a flow path superheat region with low flow is longer, and the heat exchange coefficient of the superheat region is low, so that the heat exchange performance of the evaporator is reduced; the flow path with large flow rate has insufficient heat exchange area, and is not completely evaporated at the outlet, so that the problems of liquid impact of the compressor, false operation of the expansion valve and the like are caused.

Disclosure of Invention

The invention mainly aims to provide a liquid separation structure and a heat exchange assembly with the same, so as to solve the technical problem that the liquid separation structure in the prior art is easy to cause uneven liquid separation.

In order to achieve the above object, according to one aspect of the present invention, there is provided a liquid separation structure comprising:

the first liquid separation shell is provided with a liquid inlet, a communication port and a first liquid separation cavity communicated with the liquid inlet and the communication port, the liquid inlet is opposite to the first liquid separation cavity, and the communication port is arranged between the liquid inlet and the first liquid separation cavity;

the second liquid separation shell is provided with an installation cavity, at least part of the first liquid separation shell is installed in the installation cavity, the part of the first liquid separation shell positioned in the installation cavity is arranged at intervals with the inner wall of the installation cavity to form a second liquid separation cavity, and the communication port is communicated with the second liquid separation cavity;

wherein, the one end that the intercommunication mouth was kept away from to the second divides the liquid shell is provided with the branch liquid mouth, divides liquid mouth and second liquid chamber intercommunication.

Further, the first liquid separation shell comprises a liquid inlet shell section, a communication shell section and a mixing shell section which are connected in sequence, at least part of the liquid inlet shell section extends out of the installation cavity, one end of the liquid inlet shell section, which is far away from the communication shell section, forms a liquid inlet, a communication port is formed in the side wall of the communication shell section, the mixing shell section is used for enclosing into a first liquid separation cavity, and the communication shell section and the mixing shell section are all arranged in the installation cavity.

Further, the communication shell section is of an annular structure, the communication ports are multiple, and the multiple communication ports are arranged at intervals along the circumferential direction of the communication shell section.

Further, the mixing shell section comprises a first side plate and a first end plate which are connected with each other, a first liquid separating cavity is formed by the first side plate and the first end plate in a surrounding mode, the first side plate is connected with the communication shell section, and the first end plate is arranged at one end, far away from the communication shell section, of the first side plate;

wherein, along the distribution direction of intercommunication shell section to mixed shell section, the circulation cross-section that first side board encloses reduces gradually.

Further, the second liquid separation shell is provided with a mounting port communicated with the mounting cavity; the first liquid separation shell further comprises:

the sealing cover plate is arranged on the communicating shell section, the sealing cover plate protrudes out of the side wall of the communicating shell section, the sealing cover plate is matched with the shape of the mounting opening, and the sealing cover plate is blocked at the mounting opening.

Further, the second liquid separation shell comprises a first shell section and a second shell section which are connected with each other, the first shell section is arranged opposite to the communication shell section, the first shell section is arranged at intervals from the communication shell section, the second shell section is arranged opposite to the mixing shell section, and the second shell section is arranged at intervals from the mixing shell section;

wherein the shape of the inner wall of the first shell section is matched with the shape of the outer wall of the communicating shell section; and/or the number of the groups of groups,

the shape of the inner wall of the second shell section is matched with the shape of the outer wall of the mixing shell section.

Further, the communication shell section is a first annular shell, the first shell section is a second annular shell, and the communication shell section is located in the middle of the first shell section.

Further, the second shell section comprises a second side plate and a second end plate which are connected with each other, the second end plate is arranged on one side of the second side plate far away from the first shell section, and the liquid separating port is arranged on the second end plate;

the flow cross section enclosed by the second side plate is gradually reduced along the extending direction from the first shell section to the second shell section.

Further, the mixing shell section comprises a first side plate and a first end plate which are connected with each other, and the first end plate is arranged at the end part of the first side plate; along the extending direction from the communicating shell section to the mixing shell section, the circulating section surrounded by the first side plate is gradually reduced, and the shape of the second side plate is matched with the shape of the first side plate;

the first side plate is a first conical plate; and/or the number of the groups of groups,

the second side plate is a second conical plate.

Further, the liquid separation port is arranged opposite to a gap between the first side plate and the second side plate; and/or the number of the groups of groups,

the liquid dividing ports are multiple, and the liquid dividing ports are arranged around the first end plate.

Further, the liquid separation structure further comprises:

the liquid outlet pipe is arranged outside the second liquid separating shell and connected with the liquid separating opening.

According to another aspect of the present invention, there is provided a heat exchange assembly comprising:

the liquid separating structure is provided;

and the heat exchanger is connected with the liquid separation structure.

By applying the technical scheme of the invention, liquid enters through the liquid inlet and then collides with the inner wall of the first liquid separating cavity so as to increase the mixing uniformity of the fluid in the first liquid separating cavity, then the liquid in the first liquid separating cavity enters into the second liquid separating cavity through the communication port for mixing again so as to increase the mixing distribution uniformity again, and finally flows out through the liquid separating port.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 shows a schematic structural view of one direction of a liquid separation structure provided according to an embodiment of the present invention;

FIG. 2 shows a schematic view of another direction of a liquid separation structure provided according to an embodiment of the present invention;

FIG. 3 shows an exploded view of a liquid separation structure provided in accordance with an embodiment of the present invention;

FIG. 4 illustrates a front view of a liquid separation structure provided in accordance with an embodiment of the present invention;

FIG. 5 shows a cross-sectional view of a liquid separation structure provided in accordance with an embodiment of the present invention;

fig. 6 shows a schematic structural view of a first liquid separation shell provided according to an embodiment of the present invention;

FIG. 7 illustrates a front view of a second liquid separation shell provided in accordance with an embodiment of the present invention;

fig. 8 illustrates a bottom view of a second liquid separation housing provided in accordance with an embodiment of the present invention.

Wherein the above figures include the following reference numerals:

10. a first liquid separation shell; 11. a liquid inlet shell section; 111. a liquid inlet; 12. a communicating shell section; 121. a communication port; 13. a mixing shell section; 131. a first side plate; 132. a first end plate; 14. sealing the cover plate;

20. a second liquid separation shell; 21. a first shell section; 22. a second shell section; 221. a second side plate; 222. a second end plate; 223. a liquid separating port;

30. and a liquid outlet pipe.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 8, a first embodiment of the present invention provides a liquid separation structure, which includes a first liquid separation shell 10 and a second liquid separation shell 20, where the first liquid separation shell 10 has a liquid inlet 111, a communication port 121, and a first liquid separation cavity communicating with both the liquid inlet 111 and the communication port 121, the liquid inlet 111 is disposed opposite to the first liquid separation cavity, and the communication port 121 is disposed between the liquid inlet 111 and the first liquid separation cavity. The second liquid separation shell 20 is provided with a mounting cavity, at least part of the first liquid separation shell 10 is mounted in the mounting cavity, the part of the first liquid separation shell 10 positioned in the mounting cavity is arranged at intervals with the inner wall of the mounting cavity to form a second liquid separation cavity, and the communication port 121 is communicated with the second liquid separation cavity. Wherein, the end of the second liquid separating shell 20 far away from the communication port 121 is provided with a liquid separating port 223, and the liquid separating port 223 is communicated with the second liquid separating cavity. Specifically, the liquid separation structure in this embodiment not only mixes and separates the liquid, but also mixes and separates the mixed fluid of the liquid and the gas.

With the liquid separating structure provided in this embodiment, after entering through the liquid inlet 111, liquid will collide with the inner wall of the first liquid separating cavity to increase the mixing uniformity of the fluid in the first liquid separating cavity, then the liquid in the first liquid separating cavity enters into the second liquid separating cavity through the communication port 121 to be mixed again to increase the mixing and distributing uniformity again, and finally flows out through the liquid separating port 223. Therefore, through the liquid separation structure that this embodiment provided, the technical problem that the liquid separation structure among the prior art easily appears the uneven liquid separation can be solved.

Specifically, the communication port 121 may be provided in the second liquid separation chamber so that the communication port 121 communicates with the second liquid separation chamber.

In this embodiment, the first liquid separation shell 10 includes a liquid inlet shell segment 11, a communicating shell segment 12 and a mixing shell segment 13 that are sequentially connected, at least part of the liquid inlet shell segment 11 extends out of the installation cavity, one end of the liquid inlet shell segment 11, which is far away from the communicating shell segment 12, forms a liquid inlet 111, a communicating opening 121 is arranged on a side wall of the communicating shell segment 12, the mixing shell segment 13 is used for enclosing a first liquid separation cavity, and the communicating shell segment 12 and the mixing shell segment 13 are both arranged in the installation cavity. By adopting the structure, the structure layout is optimized, the structure is simple, the liquid mixing effect is good, and the liquid separation is uniform.

Specifically, the communication casing section 12 has an annular structure, and the communication ports 121 are plural, and the plural communication ports 121 are arranged at intervals along the circumferential direction of the communication casing section 12. By adopting the structure, the liquid in the first liquid separating cavity can flow into the second liquid separating cavity along the different communication ports 121 for mixing, the mixing effect is good, and the uniformity of liquid separating is improved.

In this embodiment, the mixing housing section 13 includes a first side plate 131 and a first end plate 132 that are connected to each other, the first side plate 131 and the first end plate 132 enclose a first liquid separation chamber, the first side plate 131 is connected to the communication housing section 12, and the first end plate 132 is disposed at an end of the first side plate 131 away from the communication housing section 12. Wherein, along the distribution direction of the communication shell section 12 to the mixing shell section 13, the flow cross section enclosed by the first side plate 131 gradually decreases. By adopting the structure, the speed of mixing can be conveniently increased, so that the mixing uniformity can be better improved, and the liquid distribution uniformity can be conveniently improved.

Specifically, the second liquid separation housing 20 has a mounting port communicating with the mounting chamber; the first liquid separation shell 10 further comprises a sealing cover plate 14, the sealing cover plate 14 is arranged on the communication shell section 12, the sealing cover plate 14 protrudes out of the side wall of the communication shell section 12, the sealing cover plate 14 is matched with the shape of the mounting opening, and the sealing cover plate 14 is blocked at the mounting opening. With such a structural arrangement, effective blocking and sealing of the mounting opening by the sealing cover plate 14 can be facilitated.

In the present embodiment, the second liquid separation housing 20 includes a first housing section 21 and a second housing section 22 that are connected to each other, the first housing section 21 is disposed opposite to the communication housing section 12, the first housing section 21 is disposed at a distance from the communication housing section 12, the second housing section 22 is disposed opposite to the mixing housing section 13, and the second housing section 22 is disposed at a distance from the mixing housing section 13. With such a structural arrangement, it is possible to facilitate the formation of the second liquid separation chamber by the gap between the first casing section 21 and the communication casing section 12 and the gap between the second casing section 22 and the mixing casing section 13.

Specifically, the shape of the inner wall of the first shell section 21 is adapted to the shape of the outer wall of the communicating shell section 12 for easy liquid discharge and mixing.

In particular, the shape of the inner wall of the second housing section 22 is adapted to the shape of the outer wall of the mixing housing section 13 in order to better mix the fluid in the second liquid separation chamber.

In this embodiment, the communication casing section 12 is a first annular casing, the first casing section 21 is a second annular casing, and the communication casing section 12 is located in the middle of the first casing section 21. With such a structural arrangement, the communicating casing section 12 and the first casing section 21 can be made to have gaps at the peripheral edges thereof, thereby facilitating smooth liquid discharge through the communicating port 121.

Specifically, the symmetry axis of the communication housing section 12 is arranged coincident with the first housing section 21.

In the present embodiment, the second casing section 22 includes a second side plate 221 and a second end plate 222 connected to each other, the second end plate 222 is provided on a side of the second side plate 221 remote from the first casing section 21, and the liquid separation port 223 is provided on the second end plate 222. Wherein, along the extending direction of the first shell section 21 to the second shell section 22, the flow cross section enclosed by the second side plate 221 gradually decreases. With such a structural arrangement, it is possible to facilitate the gradual increase in the flow velocity of the fluid in the second liquid separation chamber along the extending direction of the first casing section 21 to the second casing section 22, thereby effectively increasing the uniformity of the fluid mixing.

Specifically, the mixing housing section 13 includes a first side plate 131 and a first end plate 132 connected to each other, the first end plate 132 being provided at an end of the first side plate 131; along the extending direction of the communication shell section 12 to the mixing shell section 13, the flow cross section enclosed by the first side plate 131 gradually decreases, and the shape of the second side plate 221 is matched with the shape of the first side plate 131. With such a structural arrangement, it is possible to facilitate a gradual increase in the flow velocity of the fluid in the first side plate 131 along the extending direction of the communication casing section 12 to the mixing casing section 13, thereby effectively increasing the uniformity of the mixing of the fluid in the first liquid separation chamber.

Specifically, the first side plate 131 is a first conical plate, which has a simple structure and good mixing effect.

Specifically, the second side plate 221 is a second conical plate, and has a simple structure and good mixing effect.

In the present embodiment, the liquid separation port 223 is disposed opposite to the gap between the first side plate 131 and the second side plate 221 so as to better discharge the uniformly mixed fluid.

Specifically, the liquid dividing ports 223 in the present embodiment are plural, and the plural liquid dividing ports 223 are disposed around the first end plate 132 so as to better improve the uniformity of liquid dividing.

Further, the liquid separating structure further comprises a liquid outlet pipe 30, the liquid outlet pipe 30 is arranged outside the second liquid separating shell 20, and the liquid outlet pipe 30 is connected with the liquid separating opening 223. By adopting such a structural arrangement, it is possible to facilitate connection with other pipes to be connected through the liquid outlet pipe 30.

By adopting the liquid separation structure provided by the invention, the mixed shell section 13 is arranged in the flowing direction of the refrigerant, and the high-speed refrigerant is uniformly scattered after vertically impacting the mixed shell section 13 and flows to the periphery to enter the second liquid separation cavity which is completely communicated by 360 degrees. The refrigerant is further mixed in the second liquid separation cavity, and the flow distribution is uniform. Meanwhile, after the refrigerant enters the second liquid separation cavity, the flow passage area is gradually reduced, the speed of the gas-liquid two-phase fluid is gradually increased, the flow pattern is controlled to fully develop into mist flow in the flow passage, and at the moment, the gas-liquid two-phase fluid is uniformly mixed. The uniformly distributed refrigerant flow, together with the uniformly mixed gas-liquid phase fluid, causes the refrigerant to be uniformly distributed to each of the liquid outlet pipes 30. The liquid distributor can uniformly distribute the refrigerant, has simple and reliable structure, small resistance, no fine structure, no blockage problem, good processability and practical application value.

In the liquid separating structure in this embodiment, the liquid separating mode is impact liquid separating, the high-speed fluid vertically impacts the mixing shell section 13, and rapidly spreads to the periphery, and the flow distribution is uniform. The second liquid separation cavity is a 360-degree full-through distribution flow channel, so that the refrigerants are further mixed in the second liquid separation cavity. The section of the second liquid separating cavity is gradually reduced, so that the speed of the gas-liquid two-phase fluid is increased, the two-phase fluid is fully developed into a mist flow in the flow channel, and the mist flow is an ideal state that the two-phase fluid is uniformly mixed.

Specifically, the side wall surface of the seal cover plate 14 is welded to the inner surface of the first housing of the cylindrical structure, and sealing fixation is achieved. The liquid outlet pipe 30 is connected with the liquid outlet hole on the second end plate 222 by welding. The first liquid separation shell 10 and the second liquid separation shell 20 are assembled to form a second liquid separation cavity which is communicated with the distribution flow passage in 360 degrees.

The liquid inlet shell section 11 is connected with the expansion valve through a copper pipe. The side wall surface of the sealing cover plate 14 is welded and fixed with the inner surface of the first shell of the cylindrical structure, and plays a role in sealing and fixing. The communication shell section 12 comprises a plurality of support columns, a communication port 121 is formed between two adjacent support columns, the plurality of support columns are connected with the liquid separation plate and the upper cover plate, a fixing effect is achieved, the support columns adopt streamline structures, flow resistance is reduced, and the communication shell section is not limited to a cylinder shape. The upper surface of the mixing shell section 13 is connected with the support column, the bottom of the mixing shell section 13 is provided with a first end plate 132, and the first side plate 131 is in seamless sealing contact with the first end plate 132. The difference between the diameter of the first end plate 132 and the diameter of the second end plate 222 is the diameter of the communication port 121, so that the width of the flow channel is substantially equal to the diameter of the liquid outlet hole, and the uniformity of liquid outlet is improved.

Wherein the inner diameter of the first housing is equal to the inner diameter of the second housing near the first housing. The first housing outer diameter is equal to or greater than the second housing outer diameter so as to structurally strengthen.

The refrigerant enters the liquid separator from the liquid inlet shell section 11, and the high-speed refrigerant vertically impacts on the first side plate 131 of the communication shell section 12, and then the high-speed refrigerant rapidly and uniformly disperses to the periphery, flows through the support columns and enters the second liquid separating cavity of the 360-degree full-through distribution flow channel. The two-phase refrigerant continues to mix and flow in the distribution flow channels. Along the flow direction, the flow channel section is gradually reduced, the gas-liquid two-phase fluid speed is gradually increased, and the two-phase flow pattern is fully developed in the flow channel to form a mist flow with uniform gas-liquid mixing. The mist flow is uniformly distributed to each of the liquid outlet pipes 30 through the communication ports 121, and enters different flow paths of the evaporator.

The second embodiment of the invention provides a heat exchange assembly, which comprises the liquid separation structure and the heat exchanger provided by the first embodiment, and the heat exchanger is connected with the liquid separation structure.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: the problem of poor uniformity of refrigerant distribution of the liquid separator is solved, and the heat exchange performance of the evaporator is improved; the problems of poor distribution uniformity, large pressure drop or easy blockage and the like of the traditional liquid separator to different degrees are solved; the method for solving the problem of heat exchange performance degradation caused by uneven refrigerant distribution in each flow path of the evaporator generally increases the heat exchange area of the evaporator and increases unnecessary cost.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. A liquid separation structure, comprising:

the liquid distribution device comprises a first liquid distribution shell (10), wherein the first liquid distribution shell (10) is provided with a liquid inlet (111), a communication port (121) and a first liquid distribution cavity communicated with the liquid inlet (111) and the communication port (121), the liquid inlet (111) is arranged opposite to the first liquid distribution cavity, and the communication port (121) is arranged between the liquid inlet (111) and the first liquid distribution cavity;

a second liquid separation shell (20), wherein the second liquid separation shell (20) is provided with a mounting cavity, at least part of the first liquid separation shell (10) is mounted in the mounting cavity, the part of the first liquid separation shell (10) positioned in the mounting cavity is arranged at intervals with the inner wall of the mounting cavity to form a second liquid separation cavity, and the communication port (121) is communicated with the second liquid separation cavity;

wherein, one end of second branch liquid shell (20) keep away from intercommunication mouth (121) is provided with branch liquid mouth (223), divide liquid mouth (223) with second branch liquid chamber intercommunication.

2. The liquid separation structure according to claim 1, wherein the first liquid separation shell (10) comprises a liquid inlet shell section (11), a communication shell section (12) and a mixing shell section (13) which are sequentially connected, at least part of the liquid inlet shell section (11) extends out of the installation cavity, one end, away from the communication shell section (12), of the liquid inlet shell section (11) forms the liquid inlet (111), the side wall of the communication shell section (12) is provided with the communication port (121), the mixing shell section (13) is used for enclosing the first liquid separation cavity, and both the communication shell section (12) and the mixing shell section (13) are arranged in the installation cavity.

3. The liquid separation structure according to claim 2, wherein the communication shell section (12) is of an annular structure, the plurality of communication ports (121) are provided, and the plurality of communication ports (121) are arranged at intervals along the circumferential direction of the communication shell section (12).

4. The liquid separation structure according to claim 2, characterized in that the mixing shell section (13) comprises a first side plate (131) and a first end plate (132) which are connected with each other, the first side plate (131) and the first end plate (132) enclose the first liquid separation cavity, the first side plate (131) is connected with the communication shell section (12), and the first end plate (132) is arranged at one end of the first side plate (131) far away from the communication shell section (12);

wherein, along the distribution direction from the communication shell section (12) to the mixing shell section (13), the flow cross section enclosed by the first side plate (131) gradually decreases.

5. The liquid separating structure according to claim 2, wherein the second liquid separating shell (20) has a mounting port communicating with the mounting cavity; the first liquid separation shell (10) further comprises:

the sealing cover plate (14), the sealing cover plate (14) sets up intercommunication shell section (12), sealing cover plate (14) protrusion in the lateral wall setting of intercommunication shell section (12), sealing cover plate (14) with the shape looks adaptation of installing port, sealing cover plate (14) shutoff is in installing port department.

6. The liquid separation structure according to claim 2, characterized in that the second liquid separation shell (20) comprises a first shell section (21) and a second shell section (22) which are connected with each other, the first shell section (21) is arranged opposite to the communication shell section (12), the first shell section (21) is arranged at a distance from the communication shell section (12), the second shell section (22) is arranged opposite to the mixing shell section (13), and the second shell section (22) is arranged at a distance from the mixing shell section (13);

wherein the shape of the inner wall of the first shell section (21) is matched with the shape of the outer wall of the communication shell section (12); and/or the number of the groups of groups,

the shape of the inner wall of the second shell section (22) is adapted to the shape of the outer wall of the mixing shell section (13).

7. The liquid separating structure according to claim 6, wherein the communicating casing section (12) is a first annular casing, the first casing section (21) is a second annular casing, and the communicating casing section (12) is located in the middle of the first casing section (21).

8. The liquid separation structure according to claim 6, characterized in that the second shell section (22) comprises a second side plate (221) and a second end plate (222) connected to each other, the second end plate (222) being arranged at a side of the second side plate (221) remote from the first shell section (21), the liquid separation opening (223) being arranged on the second end plate (222);

wherein the flow cross section enclosed by the second side plate (221) gradually decreases along the extending direction from the first shell section (21) to the second shell section (22).

9. The liquid separation structure according to claim 8, characterized in that the mixing shell segment (13) comprises a first side plate (131) and a first end plate (132) connected to each other, the first end plate (132) being arranged at an end of the first side plate (131); along the extending direction from the communicating shell section (12) to the mixing shell section (13), the flow cross section enclosed by the first side plate (131) gradually decreases, and the shape of the second side plate (221) is matched with the shape of the first side plate (131);

the first side plate (131) is a first conical plate; and/or the number of the groups of groups,

the second side plate (221) is a second conical plate.

10. The liquid separating structure according to claim 9, characterized in that the liquid separating opening (223) is arranged opposite to the gap between the first side plate (131) and the second side plate (221); and/or the number of the groups of groups,

the liquid separating ports (223) are multiple, and the liquid separating ports (223) are arranged around the first end plate (132).

11. The liquid separation structure according to any one of claims 1 to 10, characterized in that the liquid separation structure further comprises:

the liquid outlet pipe (30) is arranged outside the second liquid separation shell (20), and the liquid outlet pipe (30) is connected with the liquid separation port (223).

12. A heat exchange assembly, comprising:

the liquid separation structure of any one of claims 1 to 11;

and the heat exchanger is connected with the liquid separation structure.

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