CN217424047U

CN217424047U - Air conditioner and heat exchanger

Info

Publication number: CN217424047U
Application number: CN202221393667.9U
Authority: CN
Inventors: 季现凯
Original assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Shanghai Meikong Smartt Building Co Ltd
Current assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Shanghai Meikong Smartt Building Co Ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-09-13
Anticipated expiration: 2032-05-26

Abstract

The utility model relates to an air conditioner and heat exchanger. The heat exchanger includes: the tank body is provided with a heat exchange cavity, and a coolant inlet and a coolant outlet are respectively arranged on two opposite sides of the heat exchange cavity; the heat exchange assembly is accommodated in the heat exchange cavity; the heat exchange assembly comprises: the liquid distributor is provided with a liquid supply cavity for containing a refrigerant, and a liquid distribution port for outputting the liquid refrigerant is arranged on the bottom wall of the liquid supply cavity; the heat exchange tube is positioned below the liquid distribution port, and two ends of the heat exchange tube are respectively communicated with the secondary refrigerant inlet and the secondary refrigerant outlet; and a guide member including a guide portion extending from inside the liquid distribution port to abut against an outer peripheral wall of the heat exchange tube. The technical problem that this application will be solved is how to eliminate the tensile influence of refrigerant when the liquid level height of refrigerant is lower to make liquid outlet hole flowing back more smooth and easy, still avoids the refrigerant to drop from the liquid distributor on the heat exchange tube with the form of liquid drop simultaneously.

Description

Air conditioner and heat exchanger

Technical Field

The utility model relates to a heat exchange equipment technical field specifically indicates an air conditioner and heat exchanger.

Background

At present, the falling film evaporator is widely applied to a central air conditioner of a large water machine and has the advantages of high heat exchange efficiency and relatively small refrigerant filling amount.

The existing falling film evaporator comprises a liquid distributor and a heat exchange tube, wherein the heat exchange tube is arranged at the bottom of the liquid distributor, a liquid outlet hole aligned with the heat exchange tube is formed in the liquid distributor, and refrigerant in the liquid distributor is output through the liquid outlet hole and falls onto the peripheral wall of the heat exchange tube.

The liquid level height of the refrigerant in the liquid distributor is reduced, so that the flow of the refrigerant output from the liquid outlet hole can be reduced, the consumption of the refrigerant can be saved, and the efficiency of the heat exchange tube can be improved. However, when the liquid level of the refrigerant in the liquid distributor is low to a certain extent, the refrigerant is difficult to be discharged from the liquid outlet hole due to the tension of the refrigerant. Meanwhile, because the liquid level of the refrigerant is low, the flow of the refrigerant output from the liquid outlet hole is low, the refrigerant cannot continuously fall onto the peripheral wall of the heat exchange tube, but falls onto the heat exchange tube in a liquid drop mode, so that the refrigerant liquid drops falling onto the heat exchange tube splash, the heat exchange efficiency between the heat exchange tube and the refrigerant is poor, and meanwhile, the splashed liquid drops are easily sucked by a compressor of a central air conditioner, so that the compressor sucks air and carries liquid drops.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that how to eliminate the tensile influence of refrigerant when the liquid level height of refrigerant is lower makes out the liquid hole flowing back more smooth and easy, still avoids the refrigerant to drip to the heat exchange tube from the liquid distributor with the form of liquid drop simultaneously.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a heat exchanger, comprising:

the tank body is provided with a heat exchange cavity, and a coolant inlet and a coolant outlet are respectively arranged on two opposite sides of the heat exchange cavity; and

the heat exchange assembly is accommodated in the heat exchange cavity;

the heat exchange assembly comprises:

the liquid distributor is provided with a liquid supply cavity for containing a refrigerant, and a liquid distribution port for outputting the liquid refrigerant is arranged on the bottom wall of the liquid supply cavity;

the heat exchange tube is positioned below the liquid distribution port, and two ends of the heat exchange tube are respectively communicated with the secondary refrigerant inlet and the secondary refrigerant outlet; and

and the guide part comprises a guide part which extends from the inside of the liquid distribution port to be abutted against the outer peripheral wall of the heat exchange tube.

The utility model has the advantages that:

when the heat exchanger is used, the secondary refrigerant and the refrigerant are injected into the heat exchanger for heat exchange, and the refrigerant transmits cold energy to the secondary refrigerant. Specifically, the secondary refrigerant is input into the heat exchange tube, flows through the heat exchange tube and then is output out of the heat exchange tube. When the liquid supply cavity of the liquid distributor is provided with the liquid refrigerant, the liquid refrigerant is output from the liquid distribution port to the liquid supply cavity, the liquid refrigerant flows downwards along the guide piece under the action of gravity and flows onto the peripheral wall of the heat exchange tube, and the liquid refrigerant and the secondary refrigerant exchange heat through the tube wall of the heat exchange tube. Even if the liquid level of the liquid refrigerant in the liquid supply cavity is low, the liquid refrigerant can not form liquid drops to fall on the heat exchange tube when the flow of the liquid refrigerant output from the liquid distribution port is low because a part of the guide part is arranged in the liquid distribution port and the guide part can damage the surface tension of the liquid refrigerant at the liquid distribution port, so that the liquid refrigerant continuously flows down to the heat exchange tube along the guide part.

In an exemplary embodiment, one end of the guiding part, which is away from the liquid distribution port, is abutted against one side, close to the liquid distribution port, of the peripheral wall of the heat exchange tube.

In an exemplary embodiment, the guide further comprises a connection ring;

the connecting ring is connected to one end, close to the heat exchange tube, of the guide portion and sleeved on the heat exchange tube.

In an exemplary embodiment, the bottom wall is provided with a plurality of liquid distribution ports arranged in rows, and the liquid distribution ports in single row are sequentially arranged along the extending direction of the heat exchange tube;

the guide member is provided with a plurality of guide portions extending from a plurality of liquid distribution ports arranged in rows, respectively, to the same heat exchange tube.

In an exemplary embodiment, the guide further includes a connection disposed within the liquid supply cavity;

every two adjacent guide parts are connected through a connecting part.

In one illustrative embodiment, the guide portion comprises a first guide line segment and a second guide line segment, each of the first guide line segment and the second guide line segment extending from the liquid distribution port to a top region of the outer peripheral wall of the heat exchange tube;

one end of the connecting part is connected to the first guide line segment of one guide part, and the other end of the connecting part is connected to the second guide line segment of the other guide part.

In an exemplary embodiment, the guide is a wire.

In an exemplary embodiment, a plurality of the liquid distribution ports are arranged in a plurality of rows;

the heat exchange assembly is provided with a plurality of vertical heat exchange tubes, and each vertical heat exchange tube is internally provided with a plurality of heat exchange tubes which are vertically arranged at intervals and are parallel to each other;

and a vertical row of heat exchange tubes are arranged below each row of liquid distribution ports, and the guide part is abutted against the heat exchange tube closest to the liquid distributor in each vertical row of heat exchange tubes.

In an exemplary embodiment, the heat exchange assemblies are provided with a plurality of groups, and the plurality of groups of heat exchange assemblies are sequentially arranged along the vertical direction;

all the liquid distributors except the highest liquid distributor are constructed into a disc-shaped structure with an upward opening;

and the heat exchange cavity is also provided with a refrigerant injection port, and the refrigerant injection port is used for injecting liquid refrigerant into the liquid distributor at the highest position.

The present embodiment also proposes an air conditioner including any one of the heat exchangers described above.

Drawings

FIG. 1 is a schematic cross-sectional view of a heat exchanger in an embodiment of the present application;

FIG. 2 is a schematic bottom view of a liquid dispenser according to an embodiment of the present application;

FIG. 3 is a schematic view of the guide and the liquid distributor in the embodiment of the present application;

FIG. 4 is a schematic view of a guide portion in an embodiment of the present application;

FIG. 5 is a schematic view of an assembly of a liquid distributor, a guide and a heat exchanger according to an embodiment of the present application;

fig. 6 is a schematic view of another guide and heat exchanger assembly according to an embodiment of the present application.

In the drawings, the components represented by the respective reference numerals are listed below:

100. a heat exchanger; 1. a tank body; 11. a heat exchange cavity; 12. a refrigerant discharge port; 13. a top end; 14. a bottom end; 2. a heat exchange assembly; 21. a liquid distributor; 211. a liquid supply chamber; 212. a liquid distribution port; 22. a heat exchange pipe; 23. a guide; 231. a guide section; 2311. a first guide wire segment; 2312. a second guide wire segment; 232. a connecting portion; 3. an input pipeline; 31. a refrigerant injection port; 4. and an output pipeline.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Fig. 1 shows the structure of a heat exchanger 100 in the present embodiment of the present application. The heat exchanger 100 can be used as an evaporator of a central air conditioner of a water machine. The heat exchanger 100 comprises a tank 1, an input pipeline 3, an output pipeline 4 and a heat exchange assembly 2. The heat exchange assembly 2 includes a heat exchange pipe 22, a liquid distributor 21, and a guide 23. The heat exchange assembly 2 is arranged in the tank body 1. The input pipeline 3 is connected with a liquid distributor 21. The inlet line 3 is connected to the tank 1.

A heat exchange cavity 11 is arranged in the tank body 1. Heat exchange chamber 11 comprises a top end 13, a bottom end 14 opposite top end 13. The heat exchange chamber 11 is directed upwards at its top end 13 and downwards at its bottom end 14. The wall surface of the heat exchange cavity 11 is provided with a coolant inlet (not shown) and a coolant outlet (not shown), which are respectively arranged at two opposite sides of the heat exchange cavity 11.

As shown in fig. 1 and 2, the liquid distributor 21 is disposed in the heat exchange chamber 11. The liquid distributor 21 is provided with a liquid supply cavity 211. The liquid supply chamber 211 can contain a liquid refrigerant. One end of the input pipeline 3 is connected to the liquid distributor 21 and is used for injecting liquid refrigerant into the liquid supply cavity 211 of the liquid distributor 21. The wall surface of the liquid supply cavity 211 close to the bottom end 14 of the heat exchange cavity 11 is a bottom wall of the liquid supply cavity 211, and a liquid distribution port 212 is arranged on the bottom wall. The liquid distribution port 212 is a through hole, and may be a circular hole. The liquid distribution port 212 penetrates the bottom wall of the liquid supply chamber 211. When the liquid supply chamber 211 contains a liquid refrigerant, the liquid refrigerant can flow out of the liquid supply chamber 211 through the liquid distribution port 212.

As shown in fig. 1, the heat exchange tube 22 may be a circular tube. The heat exchange pipe 22 has a good heat conduction performance, and the heat exchange pipe 22 may be a metal pipe. The heat exchange pipe 22 is disposed in the heat exchange chamber 11. The heat exchange tube 22 extends along the transverse direction of the heat exchange cavity 11, and two ends of the heat exchange tube 22 are respectively connected with two opposite side walls of the heat exchange cavity 11. One end of the heat exchange tube 22 is communicated with the secondary refrigerant inlet of the heat exchange cavity 11, and the other end is communicated with the secondary refrigerant outlet of the heat exchange cavity 11. The coolant is injected into the heat exchange tubes 22 from the coolant inlet, flows through the heat exchange tubes 22, and exits the heat exchange tubes 22 from the coolant outlet. The inner pipe of the heat exchange pipe 22 is not communicated with the heat exchange cavity 11.

As shown in fig. 3-5, the guide 23 includes a guide portion 231. The guide 231 may be configured in a bar structure. The guide portion 231 extends from inside the liquid distribution port 212 to the outer peripheral wall of the heat exchange tube 22. The guide 231 preferably extends vertically. A gap is formed between the guide portion 231 and the liquid distribution port 212.

When the heat exchanger 100 is used, the coolant and the refrigerant are injected into the heat exchanger 100 to exchange heat, and the refrigerant transmits cooling energy to the coolant. Specifically, the coolant is input into the heat exchange tubes 22 from the coolant inlet, flows through the heat exchange tubes 22, and is output from the coolant outlet. After the liquid refrigerant is conveyed into the liquid supply cavity 211 of the liquid distributor 21 by the input pipeline 3, the liquid refrigerant is output from the liquid distribution port 212 to the liquid supply cavity 211, the liquid refrigerant flows downwards along the guide piece 23 under the action of gravity and flows onto the outer peripheral wall of the heat exchange tube 22, and the liquid refrigerant and the secondary refrigerant exchange heat through the tube wall of the heat exchange tube 22. Even if the liquid level of the liquid refrigerant in the liquid supply chamber 211 is low, since a part of the guide portion 231 of the guide member 23 is disposed in the liquid distribution port 212, the guide portion 231 can break the surface tension of the liquid refrigerant at the liquid distribution port 212, so that the liquid refrigerant continuously flows down along the guide member 23 to the heat exchange tube 22, and thus the liquid refrigerant does not form liquid droplets to drop onto the heat exchange tube 22 when the flow rate of the liquid refrigerant output from the liquid distribution port 212 is low.

In an exemplary embodiment, as shown in fig. 5, the guide portion 231 extends from the liquid distribution port 212 of the liquid distributor 21 to a side of the outer peripheral wall of the heat exchange tube 22 near the liquid distribution port 212. One end of the guide portion 231 facing away from the liquid distribution port 212 abuts against one side of the heat exchange tube 22 facing the liquid distribution port 212.

In this way, the liquid refrigerant can flow to the top side of the heat exchange tube 22 along the guide portion 231, so that when the flow rate of the liquid refrigerant is small, the liquid refrigerant can cover the outer peripheral wall of the heat exchange tube 22 from the top side of the heat exchange tube 22, and the liquid refrigerant can form a uniform refrigerant liquid film on the outer peripheral wall of the heat exchange tube 22, thereby improving the heat exchange efficiency of the heat exchanger 100.

In an exemplary embodiment, the bottom wall of the liquid distributor 21 is provided with a plurality of liquid distribution ports 212. Each liquid distribution port comprises a plurality of liquid distribution ports 212 arranged in rows. The arrangement direction of the liquid distribution ports 212 in each liquid distribution port is the same as the extension direction of the heat exchange tube 22.

In the single heat exchange assembly 2, a plurality of vertical rows of heat exchange tubes are arranged below the liquid distributor 21. A plurality of heat exchange tubes 22 are arranged in each vertical column of heat exchange tubes, the heat exchange tubes 22 are all horizontally arranged and are parallel to each other, and the heat exchange tubes 22 are vertically arranged at intervals.

The plurality of liquid distribution ports correspond to the plurality of vertical heat exchange tubes one by one, and each vertical heat exchange tube is arranged below one corresponding liquid distribution port. A vertical row of heat exchange tubes 22 is arranged below each liquid distribution port 212. The plurality of heat exchange tubes 22 in each vertical column of heat exchange tubes are arranged in sequence from the position close to the liquid distribution port 212 to the bottom.

The number of guides 23 is the same as the number of rows of liquid distribution ports 212, and a plurality of guides 23 correspond to a plurality of rows of liquid distribution ports one by one. The guide 23 is provided with a plurality of guide portions 231, and the number of the guide portions 231 is the same as the number of the liquid distribution ports 212 per liquid distribution port. The guide parts 231 of each guide part 23 respectively extend out from a row of liquid distribution ports 212 corresponding to the guide part 23, and one ends of the guide parts 231 departing from the liquid distribution ports 212 are respectively abutted against the heat exchange tube 22 closest to the liquid distribution port in the row of heat exchange tubes 22 corresponding to the liquid distribution port.

Thus, the guide parts 231 of each guide member 23 extend from a liquid distribution port corresponding to the guide member 23 to the outer peripheral wall of the heat exchange tube 22 closest to the liquid distributor 21 in the vertical row of heat exchange tubes corresponding to the liquid distribution port. When each liquid distribution port simultaneously conveys the liquid refrigerant to the heat exchange tube 22, the liquid refrigerant output by the liquid distribution port is guided by the plurality of guide pieces 23 to the heat exchange tube 22 with the highest position in the vertical row of heat exchange tubes corresponding to the liquid distribution port, and the liquid refrigerant is uniformly distributed in the extending direction of the heat exchange tube 22. The redundant liquid refrigerant can flow downwards under the action of gravity and sequentially flows through the plurality of heat exchange tubes 22 below, and the secondary refrigerant in all the heat exchange tubes 22 can exchange heat with the refrigerant at the same time.

In an exemplary embodiment, the guide 23 further includes a connection 232. The connection portion 232 may be configured in a bar shape. The connecting portion 232 can be provided in plurality, and the plurality of connecting portions 232 are all arranged in the liquid supply cavity 211 of the liquid distributor 21. The number of the connection parts 232 may be equal to the number of the guide parts 231 minus 1. The guide portions 231 and the connection portions 232 are alternately disposed, and both ends of the connection portions 232 are connected to the adjacent two guide portions 231, respectively.

Thus, every two adjacent guide parts 231 are connected by a connecting part 232, and the connecting part 232 fixes the guide parts 231 on the liquid distributor 21, so that the guide parts 231 are prevented from being separated from the liquid distributor 21.

In an exemplary embodiment, as shown in fig. 4, the guide portion 231 includes a first guide wire segment 2311 and a second guide wire segment 2312. The first and second

guide wire sections

2311 and 2312 are each configured as a strip-like structure. The first and second

guide line sections

2311 and 2312 each extend from the liquid distribution port 212 to a top region of the outer peripheral wall of the heat exchange tube 22. An end of the first guide line segment 2311 adjacent to the heat exchange tube 22 and an end of the second guide line segment 2312 adjacent to the heat exchange tube 22 may be connected together.

In the adjacent two guide portions 231, the first guide line segment 2311 of one guide portion 231 is connected to one end of the connecting portion 232, and the second guide line segment 2312 of the other guide portion 231 is connected to the other end of the connecting portion 232, so that the connecting portion 232 connects the adjacent two guide portions 231 to each other.

In one illustrative embodiment, the guide 23 is a unitary structure, and the guide 23 may be configured as a wire. The wire may be a flexible wire or a rigid wire.

The wire-like guide 23 occupies a small space and does not block the liquid distribution port 212.

In an exemplary embodiment, the heat exchange assemblies 2 are provided with a plurality of groups, and the plurality of groups of heat exchange assemblies 2 are arranged in sequence along the vertical direction.

A refrigerant outlet 12 is arranged on the side wall of the heat exchange cavity 11, and the refrigerant outlet 12 is communicated with the output pipeline 4.

One end of the input pipeline 3 extends into the heat exchange cavity 11 from the outside of the tank body 1, and one end of the input pipeline 3 extending into the heat exchange cavity 11 is a refrigerant injection port 31. The liquid distributor 21 of the highest positioned heat exchange module 2 may be constructed in a closed box-like structure. The refrigerant inlet 31 is connected to the top of the liquid distributor 21, and the input line 3 injects the liquid refrigerant into the liquid distributor 21 through the refrigerant inlet 31.

The liquid distributors 21, except for the highest liquid distributor 21, are constructed in a plate-like structure, and the openings of the plate-like liquid distributors 21 face the highest liquid distributor 21, i.e. the openings face upwards.

Thus, in use of the heat exchanger 100, coolant flows through each of the heat exchange tubes 22. The input line 3 inputs liquid refrigerant from the refrigerant inlet 31 into the highest liquid distributor 21, the liquid refrigerant is discharged from a plurality of liquid distribution ports 212 of the liquid distributor 21 at the same time, the liquid refrigerant flows through a vertical row of heat exchange tubes 22 in sequence, part of the liquid refrigerant absorbs heat and evaporates when flowing through the heat exchange tubes 22, the gaseous refrigerant is discharged out of the tank 1 from the refrigerant outlet, the rest of the liquid refrigerant can be collected by the next-stage disc-shaped liquid distributor 21, and the disc-shaped liquid distributor 21 can redistribute the liquid refrigerant to the heat exchange tubes 22 below the same uniformly. Like this, the liquid refrigerant homoenergetic that every group heat exchange assembly 2 did not consume is carried out the liquid distribution again by the cloth ware 21 of the heat exchange assembly 2 of below and is distributed, compares in only adopting a cloth ware 21 to carry out disposable cloth liquid, adopts a plurality of cloth wares 21 cloth liquid again many times to enable liquid refrigerant can be distributed more evenly, and then promotes heat exchange efficiency of heat exchanger 100.

In another exemplary embodiment, as shown in fig. 6, the guide 23 further includes a connection ring 233. The connection ring 233 may be configured as a circular ring. The connection ring 233 is sleeved on the heat exchange tube 22. The inner diameter of the connection ring 233 is preferably equal to the outer diameter of the heat exchange pipe 22.

The connection ring 233 is connected to one end of the guide portion 231 adjacent to the heat exchange pipe 22. The bottom ends of the first and second

guide wire sections

2311 and 2312 of the guide portion 231 are connected to the connection ring 233.

Thus, the downward end of the guide portion 231 can be fixed to the heat exchange pipe 22, and the guide portion 231 can be further fixed to prevent the guide member 23 from being separated from the heat exchange pipe 22 during use or transportation.

The embodiment also provides an air conditioner which can be a central air conditioner. The air conditioner includes the heat exchanger 100 as described above. The heat exchanger 100 serves as an evaporator of an air conditioner.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A heat exchanger, comprising:

the heat exchange assembly is accommodated in the heat exchange cavity;

the heat exchange assembly comprises:

2. The heat exchanger according to claim 1, wherein an end of the guide portion facing away from the liquid distribution port abuts against a side of the outer peripheral wall of the heat exchange tube adjacent to the liquid distribution port.

3. The heat exchanger of claim 1, wherein the guide further comprises a connection ring;

4. The heat exchanger according to any one of claims 1 to 3, wherein a plurality of liquid distribution ports arranged in rows are arranged on the bottom wall, and the liquid distribution ports in single rows are sequentially arranged along the extending direction of the heat exchange tube;

the guide member is provided with a plurality of guide portions which respectively extend from the plurality of liquid distribution ports arranged in rows to the same heat exchange tube.

5. The heat exchanger of claim 4, wherein the guide further comprises a connection disposed within the liquid supply cavity;

every two adjacent guide parts are connected through a connecting part.

6. The heat exchanger of claim 5, wherein the guide portion comprises a first guide wire segment and a second guide wire segment, each of the first guide wire segment and the second guide wire segment extending from the liquid distribution port to a top region of the outer peripheral wall of the heat exchange tube;

7. The heat exchanger of claim 6, wherein the guide is a wire.

8. The heat exchanger according to claim 4, wherein a plurality of the liquid distribution ports are arranged in a plurality of rows;

and a vertical heat exchange tube is arranged below each row of the liquid distribution port, and the guide part is abutted against the heat exchange tube closest to the liquid distributor in each vertical heat exchange tube.

9. The heat exchanger according to claim 8, wherein the heat exchange assemblies are provided with a plurality of groups, and the plurality of groups of heat exchange assemblies are arranged in sequence along the vertical direction;

10. An air conditioner characterized by comprising the heat exchanger according to any one of claims 1 to 9.