An air conditioner dehumidification system, air conditioner

Abstract

The application provides an air conditioner dehumidification system and an air conditioner, wherein the air conditioner dehumidification system comprises a dehumidification unit, a regenerative unit and a second circulating loop; the dehumidification unit is provided with a moisture absorption liquid; the regenerative unit is connected with the dehumidification unit to form the second circulating loop; the regenerative unit is used for making outdoor air flow through; an outlet of the regenerative unit is connected with an inlet of the dehumidification unit through a second branch; the second branch can exchange heat with an air conditioner circulating loop; an outlet of a condenser is provided with a main pipeline; the main pipeline has a first end and a second end; the first end is connected with an evaporator; the second end is connected with a first heat exchanger; the first heat exchanger is connected with a compressor; the first heat exchanger can exchange heat with the second branch; outdoor fresh air flows into a room after sequentially passing through the dehumidification unit, the first heat exchanger and the evaporator. According to the application, the defect that fresh air of a fresh air conditioner in the prior art cannot be dehumidified and leads to poor user experience can be overcome, and the energy efficiency of the air conditioner system is improved.

Description

Technical Field

[0001] This invention belongs to the field of air conditioner technology, specifically relating to an air conditioner dehumidification system and an air conditioner. Background Technology

[0002] As people's living standards improve, their requirements for the airtightness of building rooms are increasing. Poor airtightness leads to greater energy consumption. However, most household air conditioners currently operate on an internal circulation mode. Due to the enclosed space, the oxygen content and pollution levels in the room are increasing. Therefore, the development of fresh air conditioning has become an urgent issue. Because current fresh air conditioning directly introduces outdoor air into the room, it increases the room's load, and indoor humidity cannot be controlled. Even if the per capita fresh air volume meets the requirements, the temperature and humidity cannot meet people's needs. Therefore, solving the humidity control problem of household air conditioning has become an urgent issue in the industry.

[0003] Because the fresh air in existing air conditioners cannot be dehumidified, resulting in humidity levels that do not meet people's requirements and poor user experience, this invention researches and designs an air conditioner dehumidification system and an air conditioner. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the fresh air in the existing fresh air conditioner cannot be dehumidified, resulting in a poor user experience, and thus provide an air conditioner dehumidification system and an air conditioner.

[0005] To solve the above problems, the present invention provides an air conditioner dehumidification system, including a compressor, a condenser and an evaporator, wherein the compressor, the condenser and the evaporator are connected to form an air conditioner circulation loop;

[0006] The air conditioner dehumidification system also includes,

[0007] A dehumidification unit containing a moisture-absorbing liquid for absorbing moisture from the air;

[0008] The regeneration unit is connected to the dehumidification unit to form a second circulation loop. The regeneration unit allows outdoor air to flow through it, carrying away some of the water vapor in the liquid. The outlet of the regeneration unit is connected to the inlet of the dehumidification unit via a second branch. This second branch can exchange heat with the air conditioning circulation loop to lower the temperature of the liquid flowing in it. The outlet of the condenser is provided with a main pipe, which has a first end and a second end. The first end is connected to the evaporator, and the second end is connected to a first heat exchanger. The first heat exchanger is connected to the compressor and can exchange heat with the second branch. Outdoor fresh air flows into the room after passing through the dehumidification unit, the first heat exchanger, and the evaporator in sequence.

[0009] In some embodiments, the inlet of the regeneration unit and the outlet of the dehumidification unit are connected by a first branch, which can exchange heat with the air conditioning circulation loop to raise the temperature of the liquid flowing in the first branch. After absorbing moisture from the air, the desiccant in the dehumidification unit flows into the regeneration unit through the first branch.

[0010] In some embodiments, the second branch can exchange heat with the evaporator, and both the regeneration unit and the dehumidification unit adopt a spray-type structure to allow the absorbent liquid to come into contact with the air.

[0011] In some embodiments, a pump body is provided on the second branch, the pump body being located between the first heat exchanger and the dehumidification unit, the pump body being used to drive the flow of the absorbent liquid in the second circulation loop.

[0012] In some embodiments, the first end is provided with a second valve body, and the first end is connected to the evaporator through the second valve body; the second end is provided with a first valve body, and the second end is connected to the first heat exchanger through the first valve body.

[0013] In some embodiments, the first heat exchanger is a coil, and the first heat exchanger is located at the air inlet of the air conditioner, and the first heat exchanger is arranged opposite to the evaporator.

[0014] In some embodiments, the air conditioner dehumidification system further includes a gas-liquid separator, one end of which is connected to the evaporator and the first heat exchanger, and the other end is connected to the compressor. The refrigerant flowing out of the evaporator and the first heat exchanger flows into the gas-liquid separator, thereby separating the refrigerant into gas and liquid. The separated refrigerant then flows back into the compressor.

[0015] In some embodiments, the first branch can exchange heat with the condenser, or the outlet of the compressor is connected to a second heat exchanger, the outlet of the second heat exchanger is connected to the outlet of the condenser via a third branch, and the first branch can exchange heat with the second heat exchanger.

[0016] In some embodiments, the air conditioner dehumidification system further includes a gas-liquid separator, one end of which is connected to the evaporator and the other end to the compressor, thereby separating the refrigerant flowing out of the evaporator into gas and liquid, and the separated refrigerant flows back to the compressor.

[0017] The present invention also provides an air conditioner including the air conditioner dehumidification system described in any of the preceding claims.

[0018] The present invention provides an air conditioner dehumidification system and an air conditioner, which have the following beneficial effects:

[0019] The dehumidification unit dehumidifies the fresh air entering the air conditioner. The desiccant in the dehumidification unit absorbs moisture from the air, thus reducing indoor humidity. After absorbing moisture, the concentration of the desiccant decreases. When this low-concentration desiccant flows into the regeneration unit, its temperature rises, causing water vapor to form. While the high-temperature, low-concentration desiccant is in the regeneration unit, outdoor air flows in. Because the outdoor air temperature is lower than the temperature of the desiccant in the regeneration unit, the outdoor air carries away the water vapor and expels it outdoors. This process transforms the low-concentration desiccant in the regeneration unit into a high-concentration desiccant. The dehumidifier, through the installation of a first heat exchanger, exchanges heat with the second branch, transforming the high-temperature, high-concentration absorbent liquid flowing into the regeneration unit into a low-temperature, high-concentration absorbent liquid. When this low-temperature, high-concentration absorbent liquid flows out of the dehumidifier unit, it re-absorbs moisture from the air, achieving dehumidification. The recycling of the absorbent liquid further ensures its absorption effect, improves its utilization rate, and guarantees its recyclability. When outdoor fresh air enters the air conditioner, it flows through the first heat exchanger for heat exchange, thereby regulating the indoor temperature. The outdoor fresh air flows into the room after sequentially passing through the dehumidifier unit, the first heat exchanger, and the evaporator. The first heat exchanger cools the outdoor fresh air to the indoor temperature, reducing the fresh air load. The evaporator does not bear the fresh air load, only the room load. The high evaporation temperature of the first heat exchanger improves the system's energy efficiency. In addition to dehumidifying the outdoor fresh air, it can also form a regeneration cycle of the moisture-absorbing liquid. Furthermore, since the concentration of the moisture-absorbing liquid is different, the moisture-absorbing liquid has different moisture absorption capacity. By adjusting the concentration of the moisture-absorbing liquid, the humidity can be precisely controlled, thereby improving indoor comfort. Attached Figure Description

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0022] Figure 1 This is a schematic diagram of the structure of an air conditioner dehumidification system according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the air supply of the dehumidification system of an air conditioner according to an embodiment of the present invention.

[0024] The reference numerals in the attached figures are as follows:

[0025] 1. Compressor; 2. Condenser; 3. Evaporator; 4. Dehumidification unit; 5. Gas-liquid separator; 6. First heat exchanger; 7. Regeneration unit; 8. Pump body; 9. First valve body; 10. Second valve body; 11. Second heat exchanger; 12. Regeneration zone; 13. Dehumidification zone; 14. First branch; 15. Second branch; 16. Third branch. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0030] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0031] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0032] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0033] See also Figure 1and Figure 2As shown in the embodiment of the present invention, an air conditioner dehumidification system is provided, including a compressor 1, a condenser 2, and an evaporator 3, wherein the compressor 1, the condenser 2, and the evaporator 3 are connected to form an air conditioning circulation loop; the air conditioner dehumidification system further includes a dehumidification unit 4, wherein air flowing into the air conditioner passes sequentially through the dehumidification unit 4 and the evaporator 3 before being discharged into the room, the dehumidification unit 4 contains a moisture-absorbing liquid, the moisture-absorbing liquid being used to absorb moisture in the air; and a regeneration unit 7, the regeneration unit 7 being connected to the dehumidification unit 4 to form a second circulation loop, the outlet of the regeneration unit 7 being connected to the dehumidification unit 4. The inlets of the dehumidification unit 4 are connected by a second branch 15, which can exchange heat with the air conditioning circulation loop to reduce the temperature of the liquid flowing in the second branch 15. The outlet of the condenser 2 is provided with a main pipeline, which has a first end and a second end. The first end is connected to the evaporator 3, and the second end is connected to the first heat exchanger 6. The first heat exchanger 6 is connected to the compressor 1 and can exchange heat with the second branch 15. Outdoor fresh air flows into the room after passing through the dehumidification unit 4, the first heat exchanger 6 and the evaporator 3 in sequence. In this technical solution, the dehumidification unit 4 dehumidifies the fresh air flowing into the air conditioner. The desiccant in the dehumidification unit 4 absorbs moisture from the air, thereby reducing indoor humidity. After absorbing moisture, the concentration of the desiccant decreases. When the low-concentration desiccant flows into the regeneration unit 7 through the first branch 14, it exchanges heat with the air conditioning circulation loop, thus raising the temperature of the low-concentration desiccant. At the high temperature, the water molecules in the desiccant in the regeneration unit 7 will generate water vapor. While the high-temperature, low-concentration desiccant is in the regeneration unit 7, outdoor air flows into the regeneration unit 7. Since the outdoor air temperature is lower than the temperature of the desiccant in the regeneration unit 7, the outdoor air carrying away the water vapor in the regeneration unit 7 and expelling it outdoors will reduce the low-concentration desiccant concentration in the regeneration unit 7. The high-temperature, high-concentration absorbent liquid is transformed into a high-concentration absorbent liquid. This high-concentration absorbent liquid then flows from the regeneration unit 7 into the dehumidification unit 4. By setting up a first heat exchanger 6, which can exchange heat with the second branch 15, the high-temperature, high-concentration absorbent liquid flowing into the regeneration unit 7 becomes a low-temperature, high-concentration absorbent liquid. When the low-temperature, high-concentration absorbent liquid flows out of the dehumidification unit 4, it adsorbs moisture from the air again, achieving the dehumidification effect. The recycling of the absorbent liquid further ensures its moisture absorption effect, improves its utilization rate, and guarantees its recycling. When outdoor fresh air enters the air conditioner, it flows through the first heat exchanger 6 for heat exchange, thereby regulating the indoor temperature. The outdoor fresh air flows into the room after passing through the dehumidification unit 4, the first heat exchanger 6, and the evaporator 3 in sequence.When outdoor fresh air passes through dehumidification unit 4, the moisture in the outdoor air condenses in the first heat exchanger 6 because its temperature is lower than that of the outdoor air. This condensation is then discharged through the air conditioner. The first heat exchanger 6 also performs secondary dehumidification on the outdoor fresh air, improving the dehumidification effect. It cools the outdoor fresh air to the indoor temperature, reducing the fresh air load. The evaporator 3 does not bear the fresh air load, only the room load. The high evaporation temperature of the first heat exchanger 6 improves system energy efficiency. In addition to dehumidifying the outdoor fresh air, a regeneration cycle of the absorbent liquid can be formed. Furthermore, because different concentrations of the absorbent liquid result in different moisture absorption capacities, the humidity can be precisely controlled by adjusting the concentration of the absorbent liquid, thus improving indoor comfort.

[0034] Preferably, the air conditioning circulation loop of the present invention also has a throttling device. The compressor 1, the condenser 2, the throttling device and the evaporator 3 are connected to form an air conditioning circulation loop. Generally speaking, in summer, the outdoor air is usually 35°C. After the heat exchange of the first branch 14 through the condenser 2, the temperature of the moisture-absorbing liquid can reach more than 70°C, which is a high-temperature and high-humidity saturated solution. The outdoor air can quickly remove the moisture in the solution.

[0035] In some embodiments, the inlet of the regeneration unit 7 and the outlet of the dehumidification unit 4 are connected via a first branch 14. This first branch 14 exchanges heat with the air conditioning circulation loop to raise the temperature of the liquid flowing in it. The absorbent liquid in the dehumidification unit 4 absorbs moisture from the air and then flows into the regeneration unit 7 through the first branch 14. Specifically, the second branch 15 exchanges heat with the evaporator 3. Both the regeneration unit 7 and the dehumidification unit 4 employ a spray-type structure to ensure contact between the absorbent liquid and the air. The desiccant in dehumidification unit 4 absorbs moisture from the air, thereby reducing indoor humidity. After absorbing moisture, the concentration of the desiccant decreases. When the low-concentration desiccant flows into regeneration unit 7 through the first branch 14, it exchanges heat with the air conditioning circulation loop, causing the temperature of the low-concentration desiccant to rise. The desiccant in regeneration unit 7 then produces water vapor. While the high-temperature, low-concentration desiccant is in regeneration unit 7, outdoor air flows into it. Because the outdoor air temperature is lower than the temperature of the desiccant in regeneration unit 7, the outdoor air passes through the regeneration unit... 7. The moisture in the regeneration unit 7 will be carried away and discharged outdoors, thereby turning the low-concentration absorbent liquid in the regeneration unit 7 into a high-concentration absorbent liquid. The high-concentration absorbent liquid then flows from the regeneration unit 7 into the dehumidification unit 4. In addition to dehumidifying the outdoor fresh air, a regeneration cycle of absorbent liquid can also be formed. This invention uses a fresh air unit to overcome the problems of reduced indoor oxygen content and increased pollution in traditional air conditioning. Furthermore, the use of the dehumidification unit 4 can not only regulate indoor humidity and improve indoor comfort, but also allow the evaporator to operate under dry conditions, avoiding the growth of mold.

[0036] In this invention, the desiccant is preferably a lithium bromide solution, but any solution with moisture absorption function is acceptable. The dehumidification unit 4 and the regeneration unit 7 adopt a shell structure, with nozzles installed inside the shell. The desiccant is sprayed out through the nozzles, thereby mixing with the air to achieve the effect of moisture absorption or regeneration. Preferably, the nozzles spray from bottom to top, so that the desiccant can come into contact with the air conditioning unit during the rising and falling process, thereby improving the dehumidification efficiency and regeneration efficiency.

[0037] This invention, by setting up a first heat exchanger 6, can exchange heat with the second branch 15, so that the high-temperature, high-concentration absorbent liquid flowing into the regeneration unit 7 becomes a low-temperature, high-concentration absorbent liquid. When the low-temperature, high-concentration absorbent liquid flows out of the dehumidification unit 4, it adsorbs moisture from the air again, achieving the dehumidification effect, further improving the utilization rate of the absorbent liquid and ensuring its recycling. When outdoor fresh air enters the air conditioner, it flows through the first heat exchanger 6 for heat exchange, thereby regulating the indoor temperature. The first heat exchanger 6 cools the outdoor fresh air to the indoor temperature, reducing the fresh air load. The evaporator 3 does not bear the fresh air load, but only the room load. The high evaporation temperature of the first heat exchanger 6 improves the system energy efficiency.

[0038] In some embodiments, a pump body 8 is provided on the second branch 15, located between the first heat exchanger 6 and the dehumidification unit 4. The pump body 8 is used to drive the flow of the absorbent liquid in the second circulation loop. In this technical solution, the pump body 8 provides power to the absorbent liquid in the second circulation loop, thereby enabling the absorbent liquid to flow in the second circulation loop. Preferably, the pump body 8 can also be located at the inlet or outlet of the regeneration unit 7, or pump bodies 8 can be provided at both the dehumidification unit 4 and the regeneration unit 7 to ensure the normal flow of the absorbent liquid in the second circulation loop.

[0039] In some embodiments, the first end is provided with a second valve body 10, and the first end is connected to the evaporator 3 through the second valve body 10. The second end is provided with a first valve body 9, and the second end is connected to the first heat exchanger 6 through the first valve body 9. In this technical solution, part of the high-temperature and high-pressure gas from the compressor 1 enters the condenser 2 for exothermic cooling, and part enters the second heat exchanger 11 to heat the lithium bromide solution. The high-temperature liquid refrigerant from the condenser 2 and the second heat exchanger 11 merges and enters the first valve body 9 and the second valve body 10. The flow rate of the second heat exchanger 11 is controlled by the first valve body 9, thereby controlling the evaporation temperature of the second heat exchanger 11. When the indoor set temperature is T1℃, the temperature of the second heat exchanger 11 is (T-5)℃. The evaporation temperature of the evaporator 3 is controlled by the second valve body 10. When the supply air temperature is T2℃, the evaporation temperature of the evaporator 3 is (T-5)℃. The refrigerant, after mixing with the second heat exchanger 11 and evaporator 3, enters the gas-liquid separator 5, and then enters the compressor 1 to form a refrigeration cycle. When dehumidification is not required, simply close the first valve body 9.

[0040] In some embodiments, the first heat exchanger 6 is a coil, and it is located at the air inlet of the air conditioner, with the first heat exchanger 6 positioned opposite the evaporator 3. This technical solution, by using a coil for the first heat exchanger 6, increases the heat exchange area between the second branch 15 and the first heat exchanger 6, as well as the heat exchange area between the outdoor fresh air and the first heat exchanger 6. Furthermore, the coil design facilitates the installation of the first heat exchanger 6, saves space occupied by it, and improves the space utilization rate inside the air conditioner.

[0041] In some embodiments, the air conditioner dehumidification system further includes a gas-liquid separator 5. One end of the gas-liquid separator 5 is connected to the evaporator 3 and the first heat exchanger 6, and the other end is connected to the compressor 1. The refrigerant flowing out of the evaporator 3 and the first heat exchanger 6 flows into the gas-liquid separator 5, thereby separating the refrigerant into gas and liquid components. The separated refrigerant then flows back into the compressor 1. In this technical solution, when the first heat exchanger 6 is also included, the refrigerant flowing out of the evaporator 3 and the first heat exchanger 6 flows into the gas-liquid separator 5, thereby separating the refrigerant in the air conditioning circulation system into gas and liquid components, improving the energy efficiency of the air conditioning system, and ensuring the temperature regulation effect of the air conditioning system.

[0042] In some embodiments, the first branch 14 can exchange heat with the condenser 2. In this technical solution, the desiccant in the dehumidification unit 4 absorbs moisture from the air, thereby reducing the indoor humidity. The concentration of the desiccant decreases after absorbing moisture. When the low-concentration desiccant flows into the regeneration unit 7 through the first branch 14, it exchanges heat with the air conditioning circulation loop, thereby raising the temperature of the low-concentration desiccant. The condenser 2 in the regeneration unit 7 will generate water vapor. When the high-temperature, low-concentration desiccant is in the regeneration unit 7, outdoor air flows into the regeneration unit 7. Since the outdoor air temperature is lower than the temperature of the desiccant in the regeneration unit 7, the outdoor air flowing through the regeneration unit 7 will carry away the water vapor in the regeneration unit 7 and discharge it outdoors.

[0043] In some embodiments, the outlet of the compressor 1 is connected to a second heat exchanger 11, and the outlet of the second heat exchanger 11 is connected to the outlet of the condenser via a third branch 16. The first branch 14 can exchange heat with the second heat exchanger 11. In this technical solution, heat exchange occurs between the first branch 14 and the second heat exchanger 11, reducing the concentration of the absorbent liquid after absorbing moisture. When the low-concentration absorbent liquid flows into the regeneration unit 7 through the first branch 14, it exchanges heat with the air conditioning circulation loop, thereby raising the temperature of the low-concentration absorbent liquid. Water vapor is generated in the second heat exchanger 11 of the regeneration unit 7. When the high-temperature, low-concentration absorbent liquid is in the regeneration unit 7, outdoor air flows into the regeneration unit 7. Since the outdoor air temperature is lower than the temperature of the absorbent liquid in the regeneration unit 7, the outdoor air flowing through the regeneration unit 7 will... The water vapor in the refrigerant is carried away and discharged outdoors. By using the second heat exchanger 11, the air conditioning system no longer meets the heat exchange requirements of the absorbent liquid. Without affecting the original operation of the air conditioning system, by adding the second heat exchanger 11, the heat exchange efficiency of the air conditioning system is improved, and the system energy efficiency is also improved, through the dual heat exchange of the second heat exchanger 11 and the condenser 2. Preferably, the outlet of the second heat exchanger 11 is connected to the main pipeline through the third branch 16, and the condenser 2 is also connected to the outlet of the compressor 1. The condenser 2 and the second heat exchanger 11 are set in parallel, and the refrigerant in the second heat exchanger 11 and the condenser 2 are combined in the main pipeline.

[0044] In this invention, outdoor fresh air is cooled and dehumidified by dehumidification unit 4, then dehumidified and cooled by regeneration unit 7 and mixed with indoor return air before entering evaporator 3 for further isohumidification cooling. No condensate is produced, and the entire system operates under dry conditions, avoiding the growth of mold that affects air quality.

[0045] In this invention, lithium bromide solution is used. Since moisture in the air exists in the form of water vapor, when air with high humidity passes through lithium bromide solution, the air temperature does not change, thus achieving isothermal dehumidification.

[0046] In some embodiments, the air conditioner dehumidification system further includes a gas-liquid separator 5, one end of which is connected to the evaporator 3 and the other end to the compressor 1, thereby separating the refrigerant flowing out of the evaporator 3 into gas and liquid components. The separated refrigerant then flows back into the compressor 1. In this technical solution, when a first heat exchanger 6 is also included, the refrigerant flowing out of the evaporator 3 and the first heat exchanger 6 converges into the gas-liquid separator 5, thereby separating the refrigerant in the air conditioning circulation system into gas and liquid components, improving the energy efficiency of the air conditioning system, and ensuring the temperature regulation effect of the air conditioning system.

[0047] The present invention also provides an air conditioner including the air conditioner dehumidification system described in any of the preceding claims.

[0048] In this invention, see reference to Figure 2 As shown, the air inlet of the air conditioner is divided into a regeneration zone 12 and a dehumidification zone 13. The dehumidification unit 4 is located in the dehumidification zone 13, and the regeneration unit 7 is located in the regeneration zone 12. The first heat exchanger 6 is located between the dehumidification unit 4 and the evaporator 3, so that the outdoor fresh air flows through the first heat exchanger 6 and the evaporator 3 in sequence. The first heat exchanger 6 cools the outdoor fresh air to the indoor temperature, reducing the fresh air load. The evaporator 3 does not bear the fresh air load, but only the room load. The evaporation temperature of the first heat exchanger 6 is high, which improves the system energy efficiency.

[0049] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. An air conditioner dehumidification system, characterized in that, It includes a compressor (1), a condenser (2) and an evaporator (3), wherein the compressor (1), the condenser (2) and the evaporator (3) are connected to form an air conditioning circulation loop; The air conditioner dehumidification system also includes, A dehumidification unit (4) is provided with a moisture-absorbing liquid, which is used to absorb moisture from the air. The regeneration unit (7) is connected to the dehumidification unit (4) to form a second circulation loop. The outlet of the regeneration unit (7) is connected to the inlet of the dehumidification unit (4) through a second branch (15). The second branch (15) can exchange heat with the air conditioning circulation loop to reduce the temperature of the liquid flowing in the second branch (15). The outlet of the condenser (2) is provided with a main pipeline. The main pipeline has a first end and a second end. The first end is connected to the evaporator (3), and the second end is connected to the first heat exchanger (6). The first heat exchanger (6) is connected to the compressor (1). The first heat exchanger (6) can exchange heat with the second branch (15). Outdoor fresh air flows into the room after passing through the dehumidification unit (4), the first heat exchanger (6), and the evaporator (3) in sequence. Outdoor air flows through the regeneration unit (7) and carries away the water vapor in the regeneration unit (7) and discharges it to the outside, thereby turning the low-concentration absorbent liquid in the regeneration unit (7) into a high-concentration absorbent liquid. The inlet of the regeneration unit (7) and the outlet of the dehumidification unit (4) are connected by a first branch (14). The first branch (14) can exchange heat with the air conditioning circulation loop so that the temperature of the liquid flowing in the first branch (14) increases. After the desiccant in the dehumidification unit (4) absorbs the moisture in the air, it flows into the regeneration unit (7) through the first branch (14). The outlet of the compressor (1) is connected to a second heat exchanger (11), and the outlet of the second heat exchanger (11) is connected to the outlet of the condenser through a third branch (16). The first branch (14) can exchange heat with the second heat exchanger (11). When the absorbent liquid flows into the regeneration unit (7) through the first branch (14), it exchanges heat with the air conditioning circulation loop in the first branch (14).

2. The air conditioner dehumidification system according to claim 1, characterized in that, The second branch (15) can exchange heat with the evaporator (3). Both the regeneration unit (7) and the dehumidification unit (4) adopt a spray structure so that the absorbent liquid comes into contact with the air.

3. The air conditioner dehumidification system according to claim 2, characterized in that, A pump body (8) is provided on the second branch (15). The pump body (8) is located between the first heat exchanger (6) and the dehumidification unit (4). The pump body (8) is used to drive the flow of the absorbent liquid in the second circulation loop.

4. The air conditioner dehumidification system according to claim 2, characterized in that, The first end is provided with a second valve body (10), and the first end is connected to the evaporator (3) through the second valve body (10). The second end is provided with a first valve body (9), and the second end is connected to the first heat exchanger (6) through the first valve body (9).

5. The air conditioner dehumidification system according to claim 2, characterized in that, The first heat exchanger (6) is in the form of a coil, and the first heat exchanger (6) is located at the air inlet of the air conditioner. The first heat exchanger (6) is arranged opposite to the evaporator (3).

6. The air conditioner dehumidification system according to claim 2, characterized in that, The dehumidification system of the air conditioner also includes a gas-liquid separator (5). One end of the gas-liquid separator (5) is connected to the evaporator (3) and the first heat exchanger (6), and the other end is connected to the compressor (1). The refrigerant flowing out of the evaporator (3) and the first heat exchanger (6) flows into the gas-liquid separator (5) to separate the refrigerant into gas and liquid. The separated refrigerant flows back to the compressor (1).

7. The air conditioner dehumidification system according to claim 1, characterized in that, The dehumidification system of the air conditioner also includes a gas-liquid separator (5), one end of which is connected to the evaporator (3) and the other end is connected to the compressor (1), thereby separating the refrigerant flowing out of the evaporator (3) into gas and liquid, and the separated refrigerant flows back to the compressor (1).

8. An air conditioner, characterized in that, The dehumidification system for an air conditioner includes any one of claims 1-7.

Images