Heat exchange unit, heat exchange component, heat exchanger and air conditioner

Abstract

The present invention relates to a heat exchange unit, a heat exchange assembly, a heat exchanger and an air conditioner. The heat exchange unit includes at least two heat exchange groups connected in series, each heat exchange group is arranged up and down, each heat exchange group includes a heat exchange tube, and at least one heat exchange group includes at least two heat exchange tubes, and each heat exchange tube in the same heat exchange group is connected in parallel. The present invention is conducive to realizing the close arrangement of heat exchange tubes, increasing the space utilization rate, and each heat exchange tube in the same heat exchange group enters the refrigerant at the same time for heat exchange, which is conducive to increasing the effective heat exchange area. At the same time, there is no heat exchange dead corner, and the heat exchange is uniform.

Description

Technical Field

[0001] The present invention relates to the field of heat exchange, and in particular to a heat exchange unit, a heat exchange component, a heat exchanger and an air conditioner. Background Art

[0002] In order to increase the heat exchange area, the coil heat exchanger in the related art has a larger tube diameter. Therefore, the corner section occupies a larger space, which affects the effective heat exchange area. In addition, due to the longer corner section, it also causes uneven heat exchange and poor heat exchange effect. Summary of the invention

[0003] One of the objectives of the present invention is to provide a heat exchange unit, a heat exchange assembly, a heat exchanger and an air conditioner for alleviating the problem of poor heat exchange effect.

[0004] Some embodiments of the present invention provide a heat exchange unit, which includes at least two heat exchange groups connected in series, each heat exchange group is arranged up and down, each of the heat exchange groups includes a heat exchange tube, and at least one heat exchange group includes at least two heat exchange tubes, and the heat exchange tubes in the same heat exchange group are connected in parallel.

[0005] In some embodiments, the heat exchange tubes in the same heat exchange group are arranged up and down.

[0006] In some embodiments, the heat exchange unit includes a frame, and the heat exchange tubes in each heat exchange group are arranged in the frame.

[0007] In some embodiments, the frame includes a first beam and a second beam, the first beam is arranged at the top of the frame, and the second beam is arranged in the middle area of ​​the frame. The first beam and the second beam are arranged along the extension direction of the heat exchange tube and are both provided with multiple water spray holes.

[0008] In some embodiments, at least one of the first beam and the second beam is configured as a structure with a U-shaped cross section, and an open end of the U-shaped structure faces upward.

[0009] In some embodiments, the frame includes a third beam, which is disposed at the bottom of the frame, and is arranged along the extension direction of the heat exchange tube and is provided with a plurality of water spray holes to draw out water in the heat exchange unit.

[0010] In some embodiments, the frame includes a hollow fourth beam and a fifth beam, the first end of each of the heat exchange tubes is connected to the fourth beam, the second end of each of the heat exchange tubes is connected to the fifth beam, and partitions are provided in the fourth beam and the fifth beam, and the partitions are configured to cut off the connection between the inlet of each heat exchange tube in the upper heat exchange group and the outlet of each heat exchange tube in the lower heat exchange group in two adjacent heat exchange groups.

[0011] In some embodiments, the heat exchange unit comprises:

[0012] a first connecting pipe, connected to an upper portion of the fourth beam or the fifth beam, and connected to each heat exchange pipe in the uppermost heat exchange group; and

[0013] a second connecting pipe, connected to the lower portion of the fourth beam or the fifth beam, and connected to each heat exchange pipe in the heat exchange group located at the bottom;

[0014] One of the first connecting pipe and the second connecting pipe is used to introduce refrigerant into the heat exchange unit, and the other of the first connecting pipe and the second connecting pipe is used to lead the refrigerant out of the heat exchange unit.

[0015] Some embodiments of the present invention provide a heat exchange assembly, which includes a mounting frame and at least two of the above-mentioned heat exchange units, and each of the heat exchange units is arranged in the mounting frame at intervals.

[0016] In some embodiments, the heat exchange unit includes a connector for detachably connecting the heat exchange unit to the mounting bracket.

[0017] In some embodiments, the heat exchange assembly includes a first refrigerant pipe and a second refrigerant pipe, wherein the first refrigerant pipe is connected to each heat exchange pipe in the top heat exchange group in each heat exchange unit, and the second refrigerant pipe is connected to each heat exchange pipe in the bottom heat exchange group in each heat exchange unit.

[0018] In some embodiments, each heat exchange unit is arranged in the mounting frame at intervals along the horizontal direction, and there is a preset distance between two adjacent heat exchange units.

[0019] Some embodiments of the present invention provide a heat exchanger, which includes a shell and the above-mentioned heat exchange component, and the heat exchange component is arranged in the shell.

[0020] In some embodiments, the heat exchanger includes a spray device disposed in the housing, the spray device including:

[0021] A spray pipe, disposed at the top of the heat exchange assembly, for spraying water to each of the heat exchange units; and

[0022] A water collecting pipe has a first end connected to the bottom of the shell and a second end connected to the spray pipe. The water collecting pipe is used to collect fallen water and guide the collected water to the spray pipe.

[0023] In some embodiments, the heat exchanger includes a filler disposed below the heat exchange component for exchanging heat with water flowing through the heat exchange component.

[0024] In some embodiments, the heat exchange units of the heat exchange assembly are arranged in a mounting frame at intervals along the horizontal direction, and the frame bodies of the mounting frame located on both sides of the arrangement direction of the heat exchange units are detachably connected to the shell.

[0025] Some embodiments of the present invention provide an air conditioner, which includes the above-mentioned heat exchange unit, or includes the above-mentioned heat exchange component, or includes the above-mentioned heat exchanger.

[0026] Based on the above technical solution, the present invention has at least the following beneficial effects:

[0027] In some embodiments, the heat exchange groups of the heat exchange unit are connected in series, and the heat exchange tubes in the same heat exchange group are connected in parallel, which is conducive to the close arrangement of the heat exchange tubes and increased space utilization. The heat exchange tubes in the same heat exchange group enter the refrigerant for heat exchange at the same time, which is conducive to increasing the effective heat exchange area. At the same time, there is no dead corner for heat exchange and the heat exchange is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0029] Figure 1 A schematic diagram of a heat exchange unit provided for some embodiments of the present invention;

[0030] Figure 2 A schematic diagram of a first beam in a heat exchange unit provided in some embodiments of the present invention;

[0031] Figure 3 A schematic diagram of a heat exchange assembly provided for some embodiments of the present invention;

[0032] Figure 4 A schematic side view of a heat exchange assembly provided in some embodiments of the present invention.

[0033] Description of the reference numerals in the accompanying drawings:

[0034] 1-heat exchange unit; 11-heat exchange tube; 12-frame; 121-first beam; 122-second beam; 123-third beam; 124-fourth beam; 125-fifth beam; 126-sixth beam; 13-first connecting pipe; 14-second connecting pipe; 15-connecting piece; 16-partition;

[0035] 2-mounting frame; 21-frame;

[0036] 3-First refrigerant pipe;

[0037] 4- Second refrigerant pipe;

[0038] 5- first interface;

[0039] 6- Second interface;

[0040] 7-water retaining plate;

[0041] 10-Heat exchange component. DETAILED DESCRIPTION

[0042] The technical scheme in the embodiment will be described clearly and completely below in conjunction with the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0044] The heat exchange unit, heat exchange assembly and heat exchanger involved in the present disclosure are suitable for refrigerant condensation heat exchange and refrigerant evaporation heat exchange. The heat exchanger includes a condenser and an evaporator.

[0045] like Figure 1 As shown, some embodiments provide a heat exchange unit 1, which includes at least two heat exchange groups connected in series, each heat exchange group is arranged up and down, each heat exchange group includes a heat exchange tube 11, and at least one heat exchange group includes at least two heat exchange tubes 11, and the heat exchange tubes 11 located in the same heat exchange group are connected in parallel.

[0046] The heat exchange tubes 11 in the same heat exchange group are connected in parallel, which is conducive to the close arrangement of the heat exchange tubes 11 and the increase of space utilization. The heat exchange tubes in the same heat exchange group enter the refrigerant for heat exchange at the same time, which is conducive to increasing the effective heat exchange area. At the same time, there is no dead corner for heat exchange and the heat exchange is uniform.

[0047] In some embodiments, the heat exchange unit 1 at least includes a first heat exchange group, a second heat exchange group and a third heat exchange group connected in series, and the first heat exchange group, the second heat exchange group and the third heat exchange group each include at least two heat exchange tubes 11, the inlet of each heat exchange tube 11 in the first heat exchange group simultaneously enters the refrigerant, the outlet of each heat exchange tube 11 in the first heat exchange group simultaneously flows out the refrigerant, and the outflowing refrigerant simultaneously enters the inlet of each heat exchange tube 11 in the second heat exchange group, the outlet of each heat exchange tube 11 in the second heat exchange group simultaneously flows out the refrigerant, and the outflowing refrigerant simultaneously enters the inlet of each heat exchange tube 11 in the third heat exchange group, and the outlet of each heat exchange tube 11 in the third heat exchange group simultaneously flows out the refrigerant.

[0048] Optionally, the heat exchange unit 1 includes a first heat exchange group, a second heat exchange group, a third heat exchange group, a fourth heat exchange group, a fifth heat exchange group, a sixth heat exchange group, a seventh heat exchange group and an eighth heat exchange group connected in series in sequence. Among them:

[0049] The first heat exchange group includes three heat exchange tubes 11 connected in parallel.

[0050] The second heat exchange group includes three heat exchange tubes 11 connected in parallel.

[0051] The third heat exchange group includes three heat exchange tubes 11 connected in parallel.

[0052] The fourth heat exchange group includes three heat exchange tubes 11 connected in parallel.

[0053] The fifth heat exchange group includes ten heat exchange tubes 11 connected in parallel.

[0054] The sixth heat exchange group includes ten heat exchange tubes 11 connected in parallel.

[0055] The seventh heat exchange group includes ten heat exchange tubes 11 connected in parallel.

[0056] The eighth heat exchange group includes three heat exchange tubes 11 connected in parallel.

[0057] The refrigerant flows along the first heat exchange group to the eighth heat exchange group in sequence.

[0058] When the heat exchange unit is working in condensation, it is beneficial to form a pre-cooling section, a condensation section and a supercooling section, which is beneficial to the effective coordination of wind and water, improves the heat exchange coefficient, and improves the heat exchange capacity of the model.

[0059] In some embodiments, the heat exchange tubes 11 in the same heat exchange group are arranged up and down.

[0060] In some embodiments, the heat exchange unit includes a frame 12 , and the heat exchange tubes 11 in each heat exchange group are arranged in the frame 12 .

[0061] In other words, multiple heat exchange tubes 11 are arranged vertically in the frame 12, and all heat exchange tubes 11 are divided into multiple heat exchange groups from top to bottom. At least one heat exchange group includes two parallel heat exchange tubes 11, and each heat exchange group is configured to be connected in series.

[0062] In some embodiments, the frame 12 includes a first beam 121 and a second beam 122. The first beam 121 is disposed at the top of the frame 12, and the second beam 122 is disposed in the middle region of the frame 12. The first beam 121 and the second beam 122 are disposed along the extension direction of the heat exchange tube 11. The first beam 121 and the second beam 122 are both provided with a plurality of water spray holes along the extension direction of the heat exchange tube 11. Figure 2 shown.

[0063] The cooperation of the first beam 121 and the second beam 122 can collect, evenly distribute and spray water for multiple times, which is beneficial to the formation of water film and improves the heat exchange coefficient.

[0064] Of course, the frame 12 is not limited to having one second beam 122, and multiple second beams 122 may be provided at intervals in the middle region as required. Providing the second beam 122 in the middle region of the frame 12 is also conducive to improving the structural strength of the frame.

[0065] In some embodiments, at least one of the first beam 121 and the second beam 122 is constructed as a structure with a U-shaped cross section, and the open end of the U-shaped structure faces upward, which is conducive to water collection and water distribution.

[0066] Optionally, the first beam 121 and the second beam 122 are constructed as a structure with a U-shaped cross-section, and the open end of the U-shaped structure faces upward, which is conducive to water collection, water distribution and water spraying, and is conducive to water film formation and improving the heat exchange coefficient.

[0067] In some embodiments, the frame 12 includes a third beam 123, which is disposed at the bottom of the frame 12, and the third beam 123 is disposed along the extension direction of the heat exchange tube 11, and the third beam 123 is provided with a plurality of water spray holes along the extension direction of the heat exchange tube 11 to draw out water in the heat exchange unit 1.

[0068] Optionally, the third beam 123 is constructed as a structure with a U-shaped cross section, and the open end of the U-shaped structure faces upward, which is conducive to water collection and water distribution.

[0069] In some embodiments, the frame 12 of the heat exchange unit 1 includes a first beam 121, a second beam 122 and a third beam 123. The first beam 121 is used to evenly distribute the spray water to form a film for the first time, the second beam 122 is used to collect the spray water for the second time and divide the water into a film again, and the third beam 123 is used to finally collect the water and then divide the water and spray it on the filler at the bottom of the heat exchanger. Evenly distributing the water improves the heat exchange effect.

[0070] The filler is a material that increases the surface area of ​​water for heat exchange, and the water after heat exchange with the filler can be directed to the first beam 121 again.

[0071] Optionally, the first beam 121 , the second beam 122 and the third beam 123 are parallel to each other and parallel to the heat exchange tube 11 .

[0072] In some embodiments, the frame 12 includes a hollow fourth beam 124 and a fifth beam 125, the first end of each heat exchange tube 11 is connected to the fourth beam 124, the second end of each heat exchange tube 11 is connected to the fifth beam 125, and a partition 16 is provided in the fourth beam 124 and the fifth beam 125, and the partition 16 is configured to cut off the connection between the inlet of each heat exchange tube 11 in the upper heat exchange group of two adjacent heat exchange groups and the outlet of each heat exchange tube 11 in the lower heat exchange group; at the same time, the outlet of each heat exchange tube 11 in the upper heat exchange group of two adjacent heat exchange groups is connected to the inlet of each heat exchange tube 11 in the lower heat exchange group, so as to realize the series flow of refrigerant in adjacent heat exchange groups.

[0073] Optionally, the fourth beam 124 and the fifth beam 125 are disposed at two ends of the heat exchange tube 11 and are perpendicular to the heat exchange tube 11 .

[0074] Optionally, the fourth beam 124 and the fifth beam 125 are square tubes made of steel.

[0075] The fourth beam 124 and the fifth beam 125 can serve as the main support frame 1 and at the same time utilize their internal hollowness to form a flow channel for transporting refrigerant. Both ends of each heat exchange tube 11 are partially inserted into the fourth beam 124 and the fifth beam 125. The partitions 16 provided on the fourth beam 124 and the fifth beam 125 enable the refrigerant in the heat exchange unit 1 to form a series-connected and parallel flow path.

[0076] In some embodiments, the frame 12 further includes a sixth beam 126, which is perpendicular to the first beam 121, is disposed in the middle of the extension direction of the heat exchange tube 11, and connects the first beam 121, the second beam 122, and the third beam 123. The sixth beam 126 has the function of supporting and strengthening the frame 1.

[0077] In some embodiments, Figure 1 As shown, the heat exchange unit 1 further includes a first connecting pipe 13 and a second connecting pipe 14 .

[0078] The first connecting pipe 13 is in communication with the upper portion of the fourth beam 124 or the fifth beam 125 , and is in communication with each heat exchange tube 11 in the uppermost heat exchange group.

[0079] The second connecting pipe 14 is communicated with the lower portion of the fourth beam 124 or the fifth beam 125 , and is communicated with each heat exchange tube 11 in the heat exchange group located at the lowermost position.

[0080] One of the first connecting pipe 13 and the second connecting pipe 14 is used to introduce the refrigerant into the heat exchange unit, and the other of the first connecting pipe 13 and the second connecting pipe 14 is used to lead the refrigerant out of the heat exchange unit.

[0081] When the refrigerant in the heat exchange unit 1 is condensed, the gaseous refrigerant is introduced from the first connecting pipe 13 , and forms a liquid refrigerant after heat exchange, and the liquid refrigerant flows out from the second connecting pipe 14 .

[0082] When the refrigerant in the heat exchange unit 1 evaporates, the liquid refrigerant flows in from the second connecting pipe 14 , forms a gaseous refrigerant after heat exchange, and flows out from the first connecting pipe 13 .

[0083] Optionally, the first connecting pipe 13 is communicated with an upper portion of the fourth beam 124 , and the second connecting pipe 14 is communicated with a lower portion of the fourth beam 124 .

[0084] like Figure 3 As shown, some embodiments provide a heat exchange assembly 10, which includes a mounting frame 2 and at least two of the above-mentioned heat exchange units 1, and each heat exchange unit 1 is arranged in the mounting frame 2 at intervals.

[0085] Each heat exchange unit 1 is installed in a matrix, which is convenient for cleaning dirt and detection and maintenance.

[0086] Optionally, the mounting frame 2 is a rectangular parallelepiped, and the heat exchange units 1 are arranged at intervals along the length direction of the mounting frame 2 , or the heat exchange units 1 are arranged at intervals along the width direction of the mounting frame 2 .

[0087] In some embodiments, Figure 1 As shown, the heat exchange unit 1 includes a connector 15, and the connector 15 is used to detachably connect the heat exchange unit 1 to the mounting frame 2. The heat exchange unit 1 can be detached and replaced separately, which is convenient for after-sales maintenance.

[0088] Optionally, the four corners of the heat exchange unit 1 are mounted on the mounting frame 2 by bolts and connectors 15. The single-piece disassembly and installation of the heat exchange unit 1 is convenient for inspection, maintenance and cleaning.

[0089] Optionally, the connecting member 15 is welded to the frame 12 and is detachably connected to the mounting frame 2 by means of bolts or screws.

[0090] In some embodiments, the heat exchange assembly 10 includes a first refrigerant pipe 3 and a second refrigerant pipe 4, the first refrigerant pipe 3 is connected to each heat exchange tube 11 in the heat exchange group located at the top in each heat exchange unit 1, and the second refrigerant pipe 4 is connected to each heat exchange tube 11 in the heat exchange group located at the bottom in each heat exchange unit 1.

[0091] Furthermore, the first refrigerant pipe 3 is communicated with the first connecting pipe 13 in each heat exchange unit 1. The second refrigerant pipe 4 is communicated with the second connecting pipe 14 in each heat exchange unit 1.

[0092] In some embodiments, the heat exchange assembly 10 includes a first interface 5 and a second interface 6 , the first interface 5 is connected to the first refrigerant pipe 3 , and the second interface 6 is connected to the second refrigerant pipe 4 .

[0093] In some embodiments, the heat exchange process of the heat exchange component 10 under condensing conditions is as follows: the high-temperature gaseous refrigerant enters the first refrigerant pipe 3 through the first interface 5, and is distributed to each heat exchange tube 11 in the top heat exchange group in each heat exchange unit 1 through the first refrigerant pipe 3. The refrigerant is heat exchanged from top to bottom in each heat exchange unit 1 to form a liquid refrigerant. Finally, the liquid refrigerant is concentrated at the bottom of the heat exchange unit 1 and enters the second refrigerant pipe 4, and finally flows out through the second interface 6, forming a circulation process.

[0094] In some embodiments, each heat exchange unit 1 is arranged in the mounting frame 2 at intervals along the horizontal direction, and there is a preset distance between two adjacent heat exchange units 1. Each heat exchange unit 1 is arranged in a matrix in the mounting frame 2, and the preset distance between two adjacent heat exchange units 1 satisfies the space required for high-pressure water gun cleaning or the space required for manual brush cleaning, which is convenient for cleaning, inspection and maintenance, ventilation, etc.

[0095] Some embodiments provide a heat exchanger, which includes a shell and the above-mentioned heat exchange component 10, and the heat exchange component 10 is arranged in the shell.

[0096] In some embodiments, the heat exchanger includes a spray device disposed in the shell, and the spray device includes a spray pipe and a water collecting pipe.

[0097] The spray pipe is arranged at the top of the heat exchange assembly 10 and is used to spray water to each heat exchange unit 1 .

[0098] The first end of the water collecting pipe is connected to the bottom of the shell, and the second end of the water collecting pipe is connected to the spray pipe. The water collecting pipe is used to collect the falling water and guide the collected water to the spray pipe. That is, the water sprayed by the spray pipe is collected and returned to the top of the heat exchange component 10 for water distribution and spraying again.

[0099] The spray water is sprayed on the first beam 121 of each heat exchange unit 1 at the top of the heat exchange component 10. The first beam 121 has the function of a water dividing plate. As the water flow descends, the water flow gradually disperses. At this time, the second beam 122 in the middle area (which also has the function of a water dividing plate) can play a water collecting role and then perform secondary water distribution, thereby improving the water film formation rate and the heat exchange efficiency.

[0100] In some embodiments, the heat exchanger includes a filler disposed below the heat exchange component 10 for exchanging heat with water flowing through the heat exchange component 10, and directing the heat-exchanged water to the spray pipe again, thereby improving the heat exchange efficiency.

[0101] In some embodiments, the heat exchange units 1 of the heat exchange assembly 10 are arranged in the mounting frame 2 at intervals along the horizontal direction, and the frame bodies 21 of the mounting frame 2 located on both sides of the arrangement direction of the heat exchange units 1 are detachably connected to the shell, such as Figure 4 shown.

[0102] The frame body 21 of the mounting frame 2 of the heat exchange assembly 10 is detachably connected to the shell. When a problem occurs to the heat exchange unit 1, the frame body 21 of the mounting frame 2 can be disassembled to extract the problematic heat exchange unit 1 for maintenance, which is convenient for maintenance.

[0103] In some embodiments, the heat exchange assembly 10 includes water baffles 7, which are arranged at both ends of the arrangement direction of each heat exchange unit 1 on the mounting frame 2. That is, the connection line of the water baffles 7 at both ends is consistent with the arrangement connection line of each heat exchange unit 1.

[0104] Some embodiments provide an air conditioner, which includes the heat exchange unit in the above embodiments.

[0105] Some embodiments provide an air conditioner, which includes the heat exchange assembly in the above embodiments.

[0106] Some embodiments provide an air conditioner, which includes the heat exchanger in the above embodiments.

[0107] In the description of the present invention, it should be understood that the use of terms such as "first", "second", and "third" to limit components is only for the convenience of distinguishing the above components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0108] In addition, unless explicitly denied, the technical features of one embodiment may be beneficially combined with one or more other embodiments.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A heat exchange unit, characterized in that: include: At least three heat exchange groups connected in series, each heat exchange group being arranged up and down, each heat exchange group comprising a heat exchange tube (11), and at least one heat exchange group comprising at least two heat exchange tubes (11), and each heat exchange tube (11) in the same heat exchange group being connected in parallel; A frame (12), wherein the heat exchange tubes (11) in each heat exchange group are arranged in the frame (12); the frame (12) comprises a hollow fourth beam (124) and a fifth beam (125); the first end of each heat exchange tube (11) is connected to the fourth beam (124), and the second end of each heat exchange tube (11) is connected to the fifth beam (125); a partition (16) is arranged in the fourth beam (124) and the fifth beam (125); the partition (16) is configured to isolate the communication between the inlet of each heat exchange tube (11) in the upper heat exchange group of two adjacent heat exchange groups and the outlet of each heat exchange tube (11) in the lower heat exchange group; The outlets of the heat exchange tubes (11) in the upper heat exchange group of two adjacent heat exchange groups are communicated with the inlets of the heat exchange tubes (11) in the lower heat exchange group.

2. The heat exchange unit according to claim 1, characterized in that: The heat exchange tubes (11) in the same heat exchange group are arranged vertically.

3. The heat exchange unit according to claim 1, characterized in that: The frame (12) comprises a first beam (121) and a second beam (122); the first beam (121) is arranged at the top of the frame (12), and the second beam (122) is arranged at a middle area of ​​the frame (12); the first beam (121) and the second beam (122) are arranged along the extension direction of the heat exchange tube (11), and are both provided with a plurality of water spray holes.

4. The heat exchange unit according to claim 3, characterized in that: At least one of the first beam (121) and the second beam (122) is configured as a structure with a U-shaped cross section, and an open end of the U-shaped structure faces upward.

5. The heat exchange unit according to claim 1 or 3, characterized in that: The frame (12) comprises a third beam (123), the third beam (123) being arranged at the bottom of the frame (12), the third beam (123) being arranged along the extension direction of the heat exchange tube (11), and being provided with a plurality of water spray holes to lead out water in the heat exchange unit.

6. The heat exchange unit according to claim 1, characterized in that: include: A first connecting pipe (13) is connected to the upper portion of the fourth beam (124) or the fifth beam (125), and is connected to each heat exchange pipe (11) in the uppermost heat exchange group; and A second connecting pipe (14) is connected to the lower part of the fourth beam (124) or the fifth beam (125), and is connected to each heat exchange pipe (11) in the heat exchange group located at the bottom; One of the first connecting pipe (13) and the second connecting pipe (14) is used to introduce refrigerant into the heat exchange unit, and the other of the first connecting pipe (13) and the second connecting pipe (14) is used to lead the refrigerant out of the heat exchange unit.

7. A heat exchange component, characterized in that: It comprises a mounting frame (2) and at least two heat exchange units (1) according to any one of claims 1 to 6, wherein each of the heat exchange units (1) is arranged in the mounting frame (2) at intervals.

8. The heat exchange assembly according to claim 7, characterized in that: The heat exchange unit (1) comprises a connecting piece (15), and the connecting piece (15) is used to detachably connect the heat exchange unit (1) to the mounting frame (2).

9. The heat exchange assembly according to claim 7, characterized in that: It comprises a first refrigerant pipe (3) and a second refrigerant pipe (4), wherein the first refrigerant pipe (3) is connected to each heat exchange pipe (11) in the heat exchange group located at the top in each heat exchange unit (1), and the second refrigerant pipe (4) is connected to each heat exchange pipe (11) in the heat exchange group located at the bottom in each heat exchange unit (1).

10. The heat exchange assembly according to claim 7, characterized in that: The heat exchange units (1) are arranged in the installation frame (2) at intervals along the horizontal direction, and there is a preset distance between two adjacent heat exchange units (1).

11. A heat exchanger, characterized in that: It comprises a shell and a heat exchange component (10) according to any one of claims 7 to 10, wherein the heat exchange component (10) is arranged in the shell.

12. The heat exchanger according to claim 11, characterized in that A spray device is provided in the housing, and the spray device comprises: a spray pipe, arranged at the top of the heat exchange assembly (10), and used for spraying water to each of the heat exchange units (1); and A water collecting pipe has a first end connected to the bottom of the shell and a second end connected to the spray pipe. The water collecting pipe is used to collect fallen water and guide the collected water to the spray pipe.

13. The heat exchanger according to claim 12, characterized in that It comprises a filler arranged below the heat exchange component (10) and used for exchanging heat with water flowing down through the heat exchange component (10).

14. The heat exchanger according to claim 11, characterized in that The heat exchange units (1) of the heat exchange assembly (10) are arranged in a horizontal direction at intervals within a mounting frame (2), and the mounting frame (2) located on both sides of the arrangement direction of the heat exchange units (1) is detachably connected to the shell.

15. An air conditioner, characterized in that: It comprises the heat exchange unit as claimed in any one of claims 1 to 6, or the heat exchange assembly as claimed in any one of claims 7 to 10, or the heat exchanger as claimed in any one of claims 11 to 14.

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