Air conditioner dehumidification system and air conditioner

Abstract

The utility model provides an air conditioner dehumidification system and an air conditioner, the air conditioner dehumidification system comprises an indoor unit heat exchanger, a compressor, a four-way valve, an outdoor heat exchanger and a first throttling device, the compressor, the four-way valve, the outdoor heat exchanger, the first throttling device and the indoor unit heat exchanger are communicated in sequence to form a circulation loop, the indoor unit heat exchanger comprises a first heat exchanger body and a second heat exchanger body, the first throttling device, the first heat exchanger body, the second heat exchanger body and the compressor are sequentially communicated, and airflow sequentially flows through the second heat exchanger body and the first heat exchanger body. According to the air conditioner, the technical problem that in the prior art, an air conditioner is poor in comfort during dehumidification can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air conditioners, and in particular relates to an air conditioner dehumidification system and an air conditioner. Background Art

[0002] Residential inverter heat pump air conditioners are now widely used in my country, serving both cooling and dehumidification in the summer and heating in the winter. To meet dehumidification requirements, the air conditioner's evaporation temperature needs to be lower than the return air dew point; however, to meet comfort requirements, the return air temperature should not be too low. During low-load cooling operation, the evaporation temperature of residential inverter air conditioners is typically high. To achieve both dehumidification and cooling, the indoor unit air volume needs to be reduced, thereby lowering the evaporation temperature. This reduces both the cooling energy efficiency ratio and the dehumidification per unit energy consumed.

[0003] During the transition season (when air conditioning for cooling or heating is not required) in the middle and lower reaches of the Yangtze River and areas south of it in my country, relative humidity is high. This is especially true during the plum rain season and the return of the south wind. Indoor dehumidification is necessary to address the comfort and health issues caused by damp air. When conventional household inverter air conditioners cool and dehumidify during the transition season, the indoor return air temperature and return air dew point gradually decrease. Once the indoor relative humidity reaches a certain level, it no longer decreases and may even increase, resulting in a cold but dry indoor environment. Furthermore, the lower evaporation temperature and return air dew point significantly reduce the air conditioner's dehumidification capacity per unit energy consumption. Therefore, during the humid weather of the transition season, conventional household inverter air conditioners are unable to meet the comfort requirements for dehumidification and are often idle.

[0004] Related technologies propose a constant-temperature dehumidification evaporator, air conditioner, and control method thereof. The two components of the proposed constant-temperature dehumidification evaporator are arranged perpendicular to the wind direction. One component heats the return air, while the other cools and dehumidifies it. Thorough mixing is required before delivery to the room to ensure uniform outlet air temperature. Otherwise, large outlet air temperature differences can lead to reduced comfort. Therefore, this type of constant-temperature dehumidification evaporator is not suitable for cabinet air conditioners where the air outlet is parallel to the indoor evaporator.

[0005] Since the air conditioners in the prior art have technical problems such as poor comfort and high energy consumption during dehumidification, the present invention studies and designs an air conditioner dehumidification system and an air conditioner. Utility Model Content

[0006] Therefore, the utility model provides an air conditioner dehumidification system and an air conditioner, which can solve the technical problem of poor comfort during dehumidification of air conditioners in the prior art.

[0007] In order to solve the above problems, the utility model provides an air conditioner dehumidification system, including: an indoor heat exchanger, a compressor, a four-way valve, an outdoor heat exchanger and a first throttling device. The compressor, the four-way valve, the outdoor heat exchanger, the first throttling device and the indoor heat exchanger are connected in sequence to form a circulation loop. The indoor heat exchanger includes a first heat exchanger and a second heat exchanger. The first throttling device, the first heat exchanger, the second heat exchanger and the compressor are connected in sequence, and the air flow flows through the second heat exchanger and the first heat exchanger in sequence.

[0008] In some embodiments, a second throttling device is provided between the second heat exchanger and the first heat exchanger, one end of the second throttling device is connected to the first heat exchanger, and the other end of the second throttling device is connected to the second heat exchanger.

[0009] In some embodiments, the first heat exchanger includes a first diverter device and a second diverter device, one end of the first diverter device is connected to the first throttling device through a first pipeline, the other end of the first diverter device has a plurality of first outlets, the first outlets are connected to a fourth pipeline, the second diverter device has a plurality of first inlets, the fourth pipelines correspond one-to-one to the first inlets, the fourth pipelines are connected to the first inlets, the second diverter device has a second outlet, and the second outlet is connected to the second heat exchanger.

[0010] In some embodiments, the second heat exchanger includes a third diverter device, the third diverter device has a third inlet, the third inlet is connected to the second outlet, the third diverter device has multiple third outlets, the third outlet is connected to a third pipeline, the multiple third pipelines are all connected to the second pipeline, and the second pipeline is connected to the compressor.

[0011] In some embodiments, along the axial direction of the second pipeline, a plurality of the third pipelines are sequentially connected to the second pipeline.

[0012] In some embodiments, the number of the first outlets is the same as the number of the third outlets, and the air flow flows through the third pipeline and the fourth pipeline in sequence.

[0013] In some embodiments, the number of the first outlet and the third outlet is 5, or the number of the first outlet and the third outlet is 6.

[0014] In some embodiments, the third pipeline and the fourth pipeline are arranged in a one-to-one correspondence.

[0015] In some embodiments, the third pipeline and the fourth pipeline are staggered, or the third pipeline and the fourth pipeline are arranged in parallel, and the third pipeline has a first end and a second end. Along the axial direction of the fourth pipeline, the first end is opposite to the fourth pipeline, and the second end extends outside the fourth pipeline.

[0016] The utility model also provides an air conditioner, which includes the above-mentioned air conditioner dehumidification system.

[0017] The utility model provides an air conditioner dehumidification system and an air conditioner having the following beneficial effects:

[0018] The indoor heat exchanger includes a first heat exchanger and a second heat exchanger. The first throttling device, the first heat exchanger, the second heat exchanger, and the compressor are sequentially connected. Air flows through the second heat exchanger and the first heat exchanger in sequence. In temperature-controlled dehumidification mode, the four-way valve is de-energized. Refrigerant is discharged from the compressor exhaust port through the D and C pipes of the four-way valve and enters the outdoor heat exchanger. It then releases heat in the outdoor heat exchanger and becomes a high-pressure, high-temperature two-phase state. It then passes through the first throttling device, which is now fully open, and releases heat in the indoor first heat exchanger to become a high-pressure, subcooled liquid. It then absorbs heat in the second heat exchanger to become a low-pressure, superheated gas. It then enters the four-way valve, passes through pipes E and S, and enters the compressor intake port, where it is compressed into a high-pressure, high-temperature, superheated gas, completing the entire cycle. The indoor return air first passes through the second heat exchanger for cooling and dehumidification. It then passes through the first heat exchanger to heat the cooled and dehumidified air, bringing the outlet temperature close to the return air temperature, achieving temperature regulation while maintaining dehumidification requirements. The indoor return air is cooled, dehumidified and heated by the second heat exchanger and the first heat exchanger in turn to form supply air with a temperature close to the return air temperature and a low moisture content, which is then sent into the room to improve the dehumidification comfort in the transition season. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. The drawings described below are merely exemplary. For those skilled in the art, other implementation drawings can be derived from the provided drawings without inventive effort.

[0020] Figure 1 This is a structural diagram of the air conditioner dehumidification system of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the heat exchanger of the internal unit in the air conditioner dehumidification system of the present utility model;

[0022] Figure 3It is a schematic structural diagram of an indoor heat exchanger in another air conditioner dehumidification system of the present invention.

[0023] The accompanying drawings are:

[0024] 1. Indoor heat exchanger; 2. Compressor; 3. Four-way valve; 4. Outdoor heat exchanger; 5. First throttling device; 6. Second throttling device; 7. First heat exchanger; 8. Second heat exchanger; 9. First diverter device; 10. Second pipeline; 11. Third diverter device; 12. First pipeline; 13. Second diverter device; 14. Fourth pipeline; 15. Third pipeline. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0028] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0029] See also Figure 1-3As shown, according to an embodiment of the present utility model, an air conditioner dehumidification system is provided, comprising: an indoor heat exchanger 1, a compressor 2, a four-way valve 3, an outdoor heat exchanger 4 and a first throttling device 5, wherein the compressor 2, the four-way valve 3, the outdoor heat exchanger 4, the first throttling device 5 and the indoor heat exchanger 1 are connected in sequence to form a circulation loop, and the indoor heat exchanger 1 comprises a first heat exchanger 7 and a second heat exchanger 8, the first throttling device 5, the first heat exchanger 7 and the second heat exchanger 8 and the compressor 2 are connected in sequence, and the air flow flows through the second heat exchanger 8 and the first heat exchanger 7 in sequence. In this technical solution, the indoor heat exchanger 1 includes a first heat exchanger 7 and a second heat exchanger 8. The first throttling device 5, the first heat exchanger 7, the second heat exchanger 8 and the compressor 2 are connected in sequence, and the air flow flows through the second heat exchanger 8 and the first heat exchanger 7 in sequence. In the temperature control dehumidification mode, the four-way valve 3 is de-energized; the refrigerant is discharged from the exhaust port of the compressor 2 and enters the outdoor heat exchanger 4 through the D pipe and C pipe of the four-way valve 3, and then releases heat through the outdoor heat exchanger 4 to become a high-pressure and high-temperature two-phase state, and then passes through the first throttling device 5. At this time, the outdoor first throttling device 5 is in a fully open state, and releases heat through the indoor first heat exchanger 7 to become a high-pressure supercooled liquid, and then absorbs heat through the second heat exchanger 8 to become a low-pressure superheated gas, enters the four-way valve 3, and enters the suction port of the compressor 1 through the E pipe and S pipe, and is compressed into a high-pressure and high-temperature superheated gas, thereby completing the entire cycle. Indoor return air first passes through the second heat exchanger 8 for cooling and dehumidification, then passes through the first heat exchanger 7 to heat the cooled and dehumidified air, bringing the outlet air temperature close to the return air temperature, achieving temperature regulation while still meeting dehumidification requirements. The indoor return air then passes through the second heat exchanger 8 and the first heat exchanger 7 for cooling, dehumidification, and heating, resulting in supply air with a temperature close to the return air temperature and a lower moisture content, which is then delivered indoors to enhance dehumidification comfort during transitional seasons.

[0030] In some embodiments, a second throttling device 6 is provided between the second heat exchanger 8 and the first heat exchanger 7 , with one end of the second throttling device 6 connected to the first heat exchanger 7 , and the other end of the second throttling device 6 connected to the second heat exchanger 8 . In this technical solution, the second throttling device 6 acts as a throttling device for the indoor dehumidification valve in the temperature-controlled dehumidification mode. The first heat exchanger 7 upstream of the dehumidification valve is in a high-temperature state at the outlet of the outdoor heat exchanger 4 after passing through the outdoor first throttling device 5 and the indoor-outdoor unit connecting pipe, and heats the air that has been cooled and dehumidified by the dehumidification evaporator. The second heat exchanger 8 downstream of the second throttling device 6 is in a low-temperature and low-pressure state after throttling, and cools and dehumidifies the indoor return air. After passing through the first heat exchanger 7 to release heat and become a high-pressure supercooled liquid, it is then throttled and reduced in pressure to a low-pressure two-phase state through the second throttling device 6 and flows into the second heat exchanger 8. The indoor return air is cooled, dehumidified and heated through the second heat exchanger 8 and the first heat exchanger 7 in turn to form a supply air state with a temperature close to the return air temperature and a low moisture content, and is then sent into the room to improve the dehumidification comfort in the transition season.

[0031] In some embodiments, the first heat exchanger 7 includes a first diverter device 9 and a second diverter device 13, one end of the first diverter device 9 is connected to the first throttling device 5 through a first pipeline 12, the other end of the first diverter device 9 has a plurality of first outlets, the first outlets are connected to a fourth pipeline 14, the second diverter device 13 has a plurality of first inlets, the fourth pipelines 14 correspond one-to-one to the first inlets, the fourth pipelines 14 are connected to the first inlets, the second diverter device 13 has a second outlet, and the second outlet is connected to the second heat exchanger 8. In this technical solution, the first diversion device 9 and the second diversion device 13 use impeller diverters to ensure uniform diversion. The high-temperature refrigerant coming out of the outdoor heat exchanger 4 flows through the first pipeline 12, the first diversion device 9, the fourth pipeline 14 and the second diversion device 13 in sequence. The use of a collecting pipe in front of the first pipeline 12 can reduce the pipeline pressure drop to reduce the impact on the system energy efficiency; the high-temperature refrigerant coming out of the outdoor heat exchanger 4 passes through the first pipeline 12 and enters the first heat exchanger 7. The surface temperature of the first heat exchanger 7 is higher than the indoor return air temperature, and the return air can be heated to achieve the purpose of increasing the return air temperature.

[0032] In some embodiments, the second heat exchanger 8 includes a third diverter 11 having a third inlet connected to the second outlet. The third diverter 11 has multiple third outlets, each of which is connected to a third pipeline 15. The multiple third pipelines 15 are connected to the second pipeline 10, which is connected to the compressor 2. In this technical solution, the refrigerant flowing out of the second diverter 13 passes through the second throttling device 6, the third diverter 11, and the third pipeline 15 in sequence before flowing through the second pipeline 10 to the compressor. The refrigerant in the first heat exchanger 7 releases heat and condenses into a subcooled liquid. The refrigerant is throttled and reduced in pressure by the second throttling device 6 to a low-temperature, low-pressure two-phase state before entering the downstream second heat exchanger 8. The low-pressure, low-temperature refrigerant in the second heat exchanger 8 absorbs heat and vaporizes in the second heat exchanger 8, becoming a low-pressure, superheated or saturated gas and then being returned to the compressor intake via the second pipeline 10.

[0033] In some embodiments, multiple third pipelines 15 are sequentially connected to the second pipeline 10 along the axial direction of the second pipeline 10. In this technical solution, preferably, the axial direction of the third pipeline 15 is parallel to the axial direction of the second pipeline 10, and multiple third pipelines 15 are sequentially connected to the second pipeline 10 along the axial direction of the second pipeline 10, so that the refrigerant in the multiple third pipelines 15 is sequentially merged in the second pipeline 10, ensuring the stability of the second pipeline 10. Preferably, along the axial direction of the third pipeline 15 or the axial direction of the fourth pipeline 14, the third pipeline 15 and the fourth pipeline 14 have a highly undulating structure, that is, the third pipeline 15 and the fourth pipeline 14 are S-shaped pipelines.

[0034] In some embodiments, the number of the first outlets is the same as the number of the third outlets, and the air flows through the third pipe 15 and the fourth pipe 14 in sequence. In this technical solution, in the temperature control and dehumidification mode, the surface temperature of the second heat exchanger 8 is lower than the return air dew point temperature, and the indoor return air is cooled and dehumidified. The air after cooling and dehumidification is further heated and heated by the first heat exchanger 7 on the leeward side to form an air supply state with low moisture content and a temperature close to the inlet air temperature, thereby improving the dehumidification comfort in the transition season. The air conditioner dehumidification system of the present invention is suitable for the heat exchanger flow path of the indoor unit of the conventional air supply type circular cabinet series temperature control dehumidification system, and realizes the temperature control and dehumidification function in the transition season without affecting the external dimensions and original functions of the air conditioner. The air conditioner dehumidification system of the present invention can ensure the temperature control and dehumidification energy efficiency with the minimum attenuation of the cooling and heating energy efficiency through a reasonable indoor heat exchanger flow path and connection method, and the specifications of the connecting pipes.

[0035] In some embodiments, the number of the first outlet and the third outlet is 5, or the number of the first outlet and the third outlet is 6.

[0036] The structural form of household cabinet heat exchangers is generally characterized by a short single U-tube length, a large number of heat exchanger U-tubes, a short length, and a large number of branch lines. A reasonable internal unit flow path can improve the system's cooling, heating, and dehumidification performance. As shown in Table 1, there are four types of internal unit flow paths for front-to-back series temperature control and dehumidification systems:

[0037] Table 1 Different combinations of temperature control and dehumidification indoor heat exchangers

[0038] name type Flow path 1 5 in 5 out Flow path 2 3 in 3 out Flow path 3 6 in 6 out Flow path 4 8 in 8 out

[0039] Taking a certain model as an example, a simulation calculation was carried out to compare the cooling and heating performance and dehumidification performance of the four flow path units shown in Table 1.

[0040] The cooling and heating performance simulation results are shown in Table 2. In cooling mode, the indoor operating conditions were 27°C / 19°C dry-bulb temperature and a target cooling capacity of 7200W. Heat exchange rates were compared by ensuring the same heat exchanger outlet pressure, superheat, and inlet specific enthalpy. In heating mode, the indoor operating conditions were 20°C / 15°C dry-bulb temperature and heat exchange rates were compared by ensuring the same heat exchanger inlet pressure, superheat, and outlet temperature. It can be seen that the heat exchange capacity of Path 1 in the preferred embodiment is superior to that of the other three paths, with Path 3 slightly inferior to Path 1. This is primarily due to the more uniform flow distribution of Path 1, while the other three paths have poorer flow distribution.

[0041] Table 2 Comparison of cooling and heating performance

[0042] Flow path 1 Flow path 2 Flow path 3 Flow path 4 Rated cooling W 7212 5595 7479 7936 Intermediate refrigeration W 3599 3312 3548 3515 Rated heating W 7981 6032 7615 5501 Intermediate heating W 3949 3470 3920 3217 Rated W 15193 11627 15094 13437 middle W 7548 6782 7468 6732 total W 22741 18409 22562 20169

[0043] The dehumidification performance simulation results are shown in Table 3. The dehumidification indoor and outdoor operating conditions were set at a temperature of 22°C, a relative humidity of 80%, and an air conditioning outlet temperature of 22°C. The SMER dehumidification efficiency of the system cycle was compared. It can be seen that flow path 1 has the best dehumidification performance, while flow paths 2 and 3 are slightly worse than flow path 1.

[0044] Table 3 Dehumidification performance comparison

[0045]

[0046] In summary, a front-to-back row series temperature-controlled dehumidification indoor unit flow path is proposed. Compared with other flow paths, the cooling, heating and dehumidification performances are the best.

[0047] The internal unit flow path can be applied to both ceiling units and wall-mounted units; the heat exchange tube diameter can be selected as D5 or D7.

[0048] In some embodiments, the third pipeline 15 and the fourth pipeline 14 are arranged in a one-to-one correspondence.

[0049] The connection pipes, connecting components, and second throttling device 6 between the first heat exchanger 7 and the second heat exchanger 8 of the air conditioner dehumidification system of the present invention cause a pressure drop in the connection. For a series temperature-controlled dehumidification system, the greater the saturation temperature drop in the connection, the more significant the reduction in cooling and heating energy efficiency. Therefore, for this flow path, the specifications of the connection between the first heat exchanger 7 and the second heat exchanger 8 are selected. The pipe specifications for the connection pipe before the second diverter and after the third diverter 11 are selected to be D5, D6, or D7, with D6 and D7 being preferred. The pipe specifications for the connection pipes before and after the second throttling device 6 are selected to be D7, D8, D9, D9.52, or D12, with D9 and D9.52 being preferred. The air flow rate when the second throttling device 6 is fully open is between 350 and 650 L / min, with 400 and 500 L / min being preferred.

[0050] In some embodiments, the third pipeline 15 and the fourth pipeline 14 are staggered, or the third pipeline 15 and the fourth pipeline 14 are arranged in parallel, and the third pipeline 15 has a first end and a second end. Along the axial direction of the fourth pipeline 14, the first end is opposite to the fourth pipeline 14, and the second end extends out of the fourth pipeline 14. In this technical solution, in combination with reference to Figure 2 and Figure 3 As shown, the third pipeline 15 and the fourth pipeline 14 are staggered, or the third pipeline 15 and the fourth pipeline 14 are arranged in parallel, and the third pipeline 15 has a first end and a second end. Along the axial direction of the fourth pipeline 14, the first end is opposite to the fourth pipeline 14, and the second end extends out of the fourth pipeline 14, which can improve the heat exchange efficiency of the heat exchanger for the airflow and further improve the dehumidification efficiency.

[0051] The present invention also provides an air conditioner, comprising the above-mentioned air conditioner dehumidification system.

[0052] It is easy for those skilled in the art to understand that, under the premise of no conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. Such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. An air conditioner dehumidification system, characterized in that: include: An indoor heat exchanger (1), a compressor (2), a four-way valve (3), an outdoor heat exchanger (4) and a first throttling device (5); the compressor (2), the four-way valve (3), the outdoor heat exchanger (4), the first throttling device (5) and the indoor heat exchanger (1) are sequentially connected to form a circulation loop; the indoor heat exchanger (1) includes a first heat exchanger (7) and a second heat exchanger (8); the first throttling device (5), the first heat exchanger (7) and the second heat exchanger (8) and the compressor (2) are sequentially connected; and air flows through the second heat exchanger (8) and the first heat exchanger (7) in sequence.

2. The air conditioner dehumidification system according to claim 1, characterized in that: A second throttling device (6) is provided between the second heat exchanger (8) and the first heat exchanger (7), one end of the second throttling device (6) is connected to the first heat exchanger (7), and the other end of the second throttling device (6) is connected to the second heat exchanger (8).

3. The air conditioner dehumidification system according to claim 1, characterized in that: The first heat exchanger (7) comprises a first diverter device (9) and a second diverter device (13), one end of the first diverter device (9) is connected to the first throttling device (5) through a first pipeline (12), the other end of the first diverter device (9) has a plurality of first outlets, the first outlets are connected to a fourth pipeline (14), the second diverter device (13) has a plurality of first inlets, the fourth pipelines (14) correspond one-to-one to the first inlets, the fourth pipeline (14) is connected to the first inlets, the second diverter device (13) has a second outlet, and the second outlet is connected to the second heat exchanger (8).

4. The air conditioner dehumidification system according to claim 3, characterized in that: The second heat exchanger (8) includes a third diverter device (11), the third diverter device (11) has a third inlet, the third inlet is connected to the second outlet, the third diverter device (11) has a plurality of third outlets, the third outlets are connected to a third pipeline (15), the plurality of third pipelines (15) are all connected to the second pipeline (10), and the second pipeline (10) is connected to the compressor (2).

5. The air conditioner dehumidification system according to claim 4, characterized in that: Along the axial direction of the second pipeline (10), a plurality of third pipelines (15) are sequentially connected to the second pipeline (10).

6. The air conditioner dehumidification system according to claim 4, characterized in that: The number of the first outlets is the same as the number of the third outlets, and the airflow flows through the third pipeline (15) and the fourth pipeline (14) in sequence.

7. The air conditioner dehumidification system according to claim 4, characterized in that: The number of the first outlet and the third outlet is 5, or the number of the first outlet and the third outlet is 6.

8. The air conditioner dehumidification system according to claim 4, characterized in that: The third pipeline (15) and the fourth pipeline (14) are arranged in a one-to-one correspondence.

9. The air conditioner dehumidification system according to claim 4, characterized in that: The third pipeline (15) and the fourth pipeline (14) are arranged in a staggered manner, or the third pipeline (15) and the fourth pipeline (14) are arranged in parallel, and the third pipeline (15) has a first end and a second end. Along the axial direction of the fourth pipeline (14), the first end is opposite to the fourth pipeline (14), and the second end extends out of the fourth pipeline (14).

10. An air conditioner, characterized in that: An air conditioner dehumidification system comprising the dehumidification system of any one of claims 1 to 9.

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