A multi-system dehumidifier

Abstract

The application discloses a multi-system dehumidifier, comprising: air return chamber, heat exchange chamber, air supply chamber and compressor chamber arranged in sequence, the air supply chamber is provided with a first temperature sensor, the heat exchange chamber is provided with an evaporator, an indoor condenser and a surface cooler in sequence, the compressor chamber is provided with a plurality of independently-operated compressors, the indoor condenser is provided with a plurality of independent refrigerant pipelines corresponding to the plurality of compressors, wherein when the air supply temperature detected by the first temperature sensor is lower than the set target temperature, at least part of the compressors are switched to an internal circulation mode, high-temperature refrigerant is transported to the indoor condenser through the refrigerant pipeline to heat the air temperature in the heat exchange chamber. The application adjusts the state of the indoor condenser to mix and adjust the air outlet temperature, so that the air outlet temperature is closer to the target temperature.

Description

Technical Field

[0001] This application relates to the technical field of dehumidifiers, and more particularly to a multi-system dehumidifier. Background Technology

[0002] In indoor heated swimming pool settings, creating a comfortable environment is a core element in enhancing the user experience. To achieve this goal, installing pool dehumidification heat pumps to regulate temperature and humidity has become a common and crucial measure, and their performance plays a decisive role in the overall user experience of the pool space.

[0003] Common pool dehumidification heat pumps typically have two main operating modes. In one mode, the outdoor condenser starts working, and indoor air flows through the indoor evaporator, where it is cooled and dehumidified before being directly returned indoors. This reduces indoor humidity and regulates temperature, creating a comfortable environment for swimmers. In the other mode, the indoor condenser starts operating. Indoor air first passes through the evaporator for cooling and dehumidification, then enters the indoor condenser to absorb heat and warm up before being returned indoors, thus providing a warm and humid environment for the pool space.

[0004] However, existing pool dehumidification heat pumps have significant drawbacks in actual operation, the most prominent being the instability of the outlet air temperature. This instability leads to large fluctuations in the indoor temperature, making it difficult for swimmers to achieve a consistently comfortable experience. Frequent temperature fluctuations not only affect swimmers' comfort in the pool but may also adversely impact surrounding facilities and equipment, accelerating their aging and shortening their lifespan. Utility Model Content

[0005] The purpose of this application is to provide a multi-system dehumidifier that can solve the above-mentioned problems existing in the prior art.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] On one hand, a multi-system dehumidifier is provided, comprising: a return air chamber, a heat exchange chamber, a supply air chamber, and a compressor chamber arranged sequentially. The supply air chamber is equipped with a first temperature sensor. The heat exchange chamber is equipped with an evaporator, an indoor condenser, and a surface cooler arranged sequentially. The evaporator is located near the return air chamber. The compressor chamber is equipped with multiple independently operable compressors. The indoor condenser is equipped with multiple independent refrigerant pipes, each corresponding to one of the multiple compressors. When the supply air temperature detected by the first temperature sensor is lower than the set target temperature, at least some of the compressors switch to internal circulation mode and deliver high-temperature refrigerant to the indoor condenser through the refrigerant pipes to heat the air temperature in the heat exchange chamber.

[0008] Furthermore, when the supply air temperature detected by the first temperature sensor is higher than the set target temperature, all the compressors switch to external circulation mode. In the external circulation mode, the refrigerant pipe connected to the indoor condenser is closed.

[0009] Furthermore, it also includes a titanium tube heat exchanger and a second temperature sensor. The titanium tube heat exchanger is used to heat the pool water and is connected to the compressor via a pipe. The second temperature sensor is used to detect the temperature of the pool water. In the external circulation mode, when the water temperature detected by the second temperature sensor is lower than the target water temperature, the compressor delivers high-temperature refrigerant to the titanium tube heat exchanger.

[0010] Furthermore, it also includes an outdoor condenser, which is connected to the compressor via a pipe. In the external circulation mode, when the water temperature detected by the second temperature sensor is higher than the target water temperature, the compressor delivers high-temperature refrigerant to the outdoor condenser, and the refrigerant pipeline connecting the titanium tube heat exchanger and the compressor is closed.

[0011] Furthermore, a first fan is installed in the return air chamber, and a second fan is installed in the supply air chamber.

[0012] Furthermore, the air supply chamber is provided with an air supply outlet, and the first temperature sensor is located at the air supply outlet.

[0013] Furthermore, a fresh exhaust air chamber is provided between the return air chamber and the heat exchange chamber. The fresh exhaust air chamber is equipped with a sensible heat exchanger, which has a surface A, a surface B, a surface C, and a surface D. Surface A is connected to surface C, and surface B is connected to surface D. The fresh exhaust air chamber is also equipped with a fresh air inlet connected to surface A and an exhaust air inlet connected to surface B. Surface C is connected to the heat exchange chamber, and surface D is connected to the return air chamber.

[0014] Furthermore, the surface cooler is provided with an inlet and an outlet, the inlet being connected to an inlet pipe and the outlet being connected to an outlet pipe.

[0015] Furthermore, the supply air temperature detected by the first temperature sensor is T1, the target temperature is set to T2, and ΔT = T2 - T1. When 4℃ ≤ ΔT ≤ 8℃, at least part of the compressor switches to internal circulation mode.

[0016] Furthermore, the evaporator, the indoor condenser, and the surface cooler are arranged evenly and side-by-side in the heat exchange chamber.

[0017] The beneficial effects of this application are as follows: After indoor air enters the return air chamber, it undergoes heat exchange in the heat exchange chamber and is then sent back to the room from the supply air chamber. In the heat exchange chamber, the evaporator is always in operation. The return air is cooled and dehumidified by the evaporator, and then passes through the indoor condenser and the surface cooler to complete the heat exchange. In the external circulation mode, the indoor condenser does not work, meaning the air temperature remains unchanged after passing through the indoor condenser. The external circulation mode is the default setting. When the detected supply air temperature is lower than the target temperature, some compressors will switch their operating modes from external circulation mode to internal circulation mode. After the mode switch, the corresponding part of the indoor condenser will heat the passing air. Since only a portion of the indoor condenser heats the passing air and mixes it with the remaining unheated air, it is sent back to the room from the supply air chamber after passing through the surface cooler. The temperature of the mixture is closer to the target temperature. Moreover, by only switching the operating mode of a portion of the compressors, the control of the outlet air temperature is ensured without affecting the overall operating conditions, and energy saving and efficiency improvement are achieved. Attached Figure Description

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is an internal schematic diagram of the multi-system dehumidifier described in the embodiments of this application;

[0020] Figure 2 This is a top view of the multi-system dehumidifier described in the embodiments of this application.

[0021] In the diagram: 1. Return air chamber; 2. Heat exchange chamber; 3. Supply air chamber; 4. Compressor chamber; 5. Evaporator; 6. Indoor condenser; 7. Surface cooler; 8. Compressor; 9. Titanium tube heat exchanger; 10. Supply air outlet; 11. Water inlet; 12. Water outlet; 13. Fresh air inlet; 14. Exhaust air outlet; 15. Sensible heat exchanger; 16. First fan; 17. Second fan; 18. Outdoor condenser; 19. Fresh and exhaust air chamber. Detailed Implementation

[0022] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] like Figure 1 , Figure 2 As shown, this embodiment provides a multi-system dehumidifier, including: a return air chamber 1, a heat exchange chamber 2, a supply air chamber 3, and a compressor chamber 4 arranged in sequence. The supply air chamber 3 is equipped with a first temperature sensor. The heat exchange chamber 2 is equipped with an evaporator 5, an indoor condenser 6, and a surface cooler 7 arranged in sequence. The evaporator 5 is located near the return air chamber 1. The compressor chamber 4 is equipped with multiple independently operable compressors 8. The indoor condenser 6 is equipped with multiple independent refrigerant pipes, which are respectively connected to the multiple compressors 8 one by one. When the supply air temperature detected by the first temperature sensor is lower than the set target temperature, at least some of the compressors 8 switch to internal circulation mode and deliver high-temperature refrigerant to the indoor condenser 6 through the refrigerant pipes to heat the air temperature in the heat exchange chamber 2.

[0026] Based on the above scheme, indoor air first enters the return air chamber 1, then flows into the heat exchange chamber 2 for heat exchange, and finally returns to the room from the supply air chamber 3. In the heat exchange chamber 2, the evaporator 5 remains operational; as the return air passes through the evaporator 5, it undergoes cooling and dehumidification. Afterward, the air sequentially passes through the indoor condenser 6 and the surface cooler 7 to complete the entire heat exchange process. This dehumidifier is set to an external circulation mode as the default operating mode. In external circulation mode, the indoor condenser 6 is not operational, and the air temperature does not change as it passes through it. When the first temperature sensor detects that the supply air temperature is lower than the set target temperature, part of the compressor 8 switches its operating mode from external circulation mode to internal circulation mode. After the mode switch, the corresponding part of the indoor condenser 6 starts working, heating the passing air. Since only a portion of the indoor condenser 6 heats the air, the heated air mixes with the remaining unheated air. The mixed air then passes through the surface cooler 7 and finally returns to the room from the supply air chamber 3. This design makes the temperature of the mixed air closer to the target temperature. Moreover, switching only the operating mode of some compressors 8 will not have a significant impact on the overall operating condition of the dehumidifier, achieving energy saving and efficiency improvement while effectively controlling the outlet air temperature.

[0027] This multi-system dehumidifier offers several significant benefits. Through a unique operating mode design and component collaboration, it successfully solves the key problem of unstable outlet air temperature in existing technologies. Regarding temperature control, the evaporator 5 continuously performs cooling and dehumidification operations. Combined with a compressor 8 and indoor condenser 6 that can switch operating modes, when the supply air temperature is lower than the target value, some compressors 8 switch to internal circulation mode, causing the corresponding indoor condenser 6 to heat the air. Through air mixing, the supply air temperature more accurately approaches the target temperature, greatly improving the stability of the outlet air temperature and creating a consistently comfortable indoor environment, thus enhancing the user experience. In terms of equipment protection, the stable outlet air temperature reduces damage to surrounding facilities and equipment caused by large temperature fluctuations due to thermal expansion and contraction, effectively extending the service life of these facilities and equipment and reducing maintenance and replacement costs. From an energy utilization perspective, switching only the operating modes of some compressors 8 avoids unnecessary energy consumption without affecting the overall operation of the dehumidifier, achieving energy saving and efficiency improvement. This energy-saving design not only conforms to the current trend of energy conservation and environmental protection but also saves users operating costs, possessing high economic value and environmental significance, and has broad prospects for promotion and application.

[0028] In some embodiments, when the supply air temperature detected by the first temperature sensor is higher than the set target temperature, all compressors 8 switch to external circulation mode. In external circulation mode, the refrigerant pipe connected to the indoor condenser 6 is closed. When the first temperature sensor detects that the supply air temperature is higher than the set target temperature, it indicates that the current supply air temperature is too high and may cause the indoor ambient temperature to exceed the comfortable range. At this time, all compressors 8 switch to external circulation mode. During normal operation, the compressors 8 supply refrigerant to the indoor condenser 6 through the refrigerant pipe, allowing the indoor condenser 6 to heat the passing air. However, in external circulation mode, the refrigerant pipe connected to the indoor condenser 6 is closed, which cuts off the supply of refrigerant to the indoor condenser 6. Without the heat exchange process of refrigerant in the indoor condenser 6, the indoor condenser 6 no longer heats the passing air, and may even contribute to a certain degree of air temperature reduction due to airflow and other factors, thereby reducing the temperature of the air supplied after passing through the heat exchange chamber 2 and gradually approaching the set target temperature.

[0029] Furthermore, the system also includes a titanium tube heat exchanger 9 and a second temperature sensor. The titanium tube heat exchanger 9 is used to heat the pool water and is connected to the compressor 8 via a pipe. The second temperature sensor is used to detect the temperature of the pool water. In the external circulation mode, when the water temperature detected by the second temperature sensor is lower than the target water temperature, the compressor 8 delivers high-temperature refrigerant to the titanium tube heat exchanger 9. When the multi-system dehumidifier is in external circulation mode, there is originally a refrigerant circulation between the compressor 8 and the indoor condenser 6 to achieve specific air handling functions. At this time, the second temperature sensor continuously detects the temperature of the pool water. When the second temperature sensor detects that the pool water temperature is lower than the target water temperature, this indicates that the pool water needs to be heated to reach a suitable temperature. Since the titanium tube heat exchanger 9 is connected to the compressor 8 via a pipe, the compressor 8 changes the refrigerant delivery path, transferring the high-temperature, high-pressure refrigerant that would originally be delivered to the indoor condenser 6 to the titanium tube heat exchanger 9. The high-temperature refrigerant exchanges heat with the pool water in the titanium tube heat exchanger 9, transferring heat to the pool water and raising its temperature. Meanwhile, the refrigerant itself cools down by releasing heat. After the heat exchange is complete, the refrigerant flows back to the compressor 8 through the corresponding pipes to form a new cycle.

[0030] Furthermore, it also includes an outdoor condenser 18, which is connected to the compressor 8 via a pipe. In the external circulation mode, when the water temperature detected by the second temperature sensor is higher than the target water temperature, the compressor 8 delivers high-temperature refrigerant to the outdoor condenser 18, and the refrigerant pipeline connecting the titanium tube heat exchanger 9 and the compressor 8 is closed. When the second temperature sensor detects that the pool water temperature is higher than the target water temperature, it means that the current pool water temperature is too high and further heating is unnecessary. Since the outdoor condenser 18 is connected to the compressor 8 via a pipe, the compressor 8 will respond by changing the refrigerant delivery path, redirecting the high-temperature refrigerant that might have been delivered to the titanium tube heat exchanger 9 to the outdoor condenser 18. Simultaneously, the refrigerant pipeline connecting the titanium tube heat exchanger 9 and the compressor 8 is closed, cutting off the flow of high-temperature refrigerant to the titanium tube heat exchanger 9. After the high-temperature refrigerant enters the outdoor condenser 18, it exchanges heat with the air in the outdoor environment, releasing heat into the outdoor air and lowering its own temperature. After completing the heat exchange, the refrigerant flows back to the compressor 8 through the pipe to form a new cycle, thereby preventing the pool water from rising further due to continuous heat absorption.

[0031] Generally, a first fan 16 is installed in the return air chamber 1, and a second fan 17 is installed in the supply air chamber 3. When the first fan 16 in the return air chamber 1 starts, it creates a negative pressure environment in the room, causing indoor air to be drawn into the return air chamber 1 quickly and orderly. This process provides a stable air source for subsequent air treatment, ensuring a sufficient amount of air enters the heat exchange system. After the air enters the heat exchange chamber 2, it passes through the evaporator 5 for cooling and dehumidification, the indoor condenser 6, and the surface cooler 7 to complete the heat exchange process. The second fan 17 in the supply air chamber 3 is responsible for forcefully blowing the heat-treated air out of the supply air chamber 3 and returning it to the room. The airflow generated by the second fan 17 ensures that the treated air is evenly and effectively distributed to all areas of the room, achieving indoor air circulation and temperature and humidity regulation.

[0032] Meanwhile, the air supply chamber 3 is equipped with an air outlet 10, and the first temperature sensor is located at the air outlet 10. Placing the first temperature sensor at the air outlet 10 allows for precise monitoring. The air outlet 10 is the final point where air leaves the dehumidifier and enters the room; the temperature of the air here directly reflects the actual temperature of the environment about to enter. The first temperature sensor can capture the temperature data of the air at the air outlet 10 in real time and accurately, and feed this data back to the dehumidifier's control system. The control system compares the received temperature information with the preset target temperature to determine whether the current air supply temperature meets the requirements. If the air supply temperature deviates from the target temperature, the control system will react quickly, adjusting the dehumidifier's operating mode according to a predetermined control strategy, such as switching the compressor 8's circulation mode or adjusting the working state of the indoor condenser 6, to ensure that the air supply temperature remains stable within the target range, achieving precise control of the indoor ambient temperature.

[0033] Preferably, a fresh air exhaust chamber 19 is further provided between the return air chamber 1 and the heat exchange chamber 2. The fresh air exhaust chamber 19 contains a sensible heat exchanger 15, which has surfaces A, B, C, and D. Surface A is connected to surface C, and surface B is connected to surface D. The fresh air exhaust chamber 19 also has a fresh air inlet 13 connected to surface A and an exhaust outlet 14 connected to surface B. Surface C is connected to the heat exchange chamber 2, and surface D is connected to the return air chamber 1. When the dehumidifier is working, fresh outdoor air enters surface A of the sensible heat exchanger 15 through the fresh air inlet 13. Since surface A is connected to surface C, the fresh air then flows into surface C and further into the heat exchange chamber 2. Simultaneously, indoor return air, under the action of the first fan 16, enters surface D of the sensible heat exchanger 15 from the return air chamber 1. Since surface B is connected to surface D, the return air then flows towards surface B and finally exits outdoors through the exhaust outlet 14.

[0034] In this process, the sensible heat exchanger 15 utilizes its special structure to enable indirect heat exchange between the fresh air and exhaust air during their flow. Since the temperatures of the fresh air and exhaust air typically differ, heat is transferred from the warmer side to the cooler side. For example, in summer, the outdoor fresh air temperature is higher, while the indoor return air temperature is relatively lower. As the return air passes through the sensible heat exchanger 15, it absorbs some of the heat from the fresh air, lowering its temperature. Conversely, in winter, the indoor return air temperature is higher, transferring heat to the fresh air and raising its temperature. After this heat exchange, the fresh air enters the heat exchange chamber 2 at a temperature closer to the indoor temperature for further processing, while the exhaust air carries away excess heat or cold from the room to the outside.

[0035] Optionally, the surface cooler 7 is provided with an inlet 11 and an outlet 12. The inlet 11 is connected to an inlet pipe, and the outlet 12 is connected to an outlet pipe. If hot water is introduced into the inlet pipe, it will heat the air before being discharged. If cold water is introduced, it will cool the air before being discharged. The water after heat exchange is discharged through the outlet 12 and the outlet pipe.

[0036] It is worth mentioning that the first temperature sensor detects the supply air temperature as T1, and the set target temperature is T2, where ΔT = T2 - T1. When 4℃ ≤ ΔT ≤ 8℃, at least some of the compressors 8 switch to internal circulation mode. During the operation of the multi-system dehumidifier, the first temperature sensor continuously monitors the supply air temperature at the air outlet 10 in real time and records it as T1. At the same time, a target temperature T2 is preset in the system. By calculating these two temperature values, the temperature difference ΔT = T2 - T1 is obtained. This temperature difference ΔT reflects the degree of deviation between the current supply air temperature and the desired target temperature. When the system detects the specific range of 4℃ ≤ ΔT ≤ 8℃, it means that there is a certain gap between the current supply air temperature and the target temperature, but it has not yet reached the extreme situation where the compressors 8 need to cool or heat at full power to quickly adjust. At this time, the system determines that switching at least some of the compressors 8 to internal circulation mode is a more appropriate operating strategy. In internal circulation mode, some compressors 8 no longer obtain air from the outdoor environment for complex heat exchange processing, but mainly circulate the indoor air. Since the temperature and humidity of indoor air are more stable than those of outdoor air and are closer to the target conditions, compressor 8 can more accurately adjust its operating parameters according to the actual indoor needs in internal circulation mode, gradually adjusting the supply air temperature with less energy consumption, so that it approaches the target temperature T2.

[0037] Specifically, the evaporator 5, the indoor condenser 6, and the surface cooler 7 are arranged evenly and side-by-side within the heat exchange chamber 2. From the perspective of heat exchange efficiency, this uniform and regular layout allows air to pass through each heat exchange component at a relatively stable and uniform flow rate, increasing the contact time and area between the air and the heat exchange surfaces, thereby improving the adequacy of heat exchange. The evaporator 5 can more efficiently absorb heat from the air to achieve cooling and dehumidification, the indoor condenser 6 can more fully transfer heat to the air, and the surface cooler 7 can more precisely regulate the cooling of the air. Overall, this improves the heat exchange efficiency of the dehumidifier, making the dehumidification and temperature regulation effects more significant and enabling it to reach the set indoor environmental parameters more quickly.

[0038] In practical applications, this multi-system dehumidifier is specifically a four-system dehumidifier, including four compressors 8, with four refrigerant pipes connected to the indoor condensers 6. When switching to the internal circulation mode, two indoor condensers 6 are supplied with high-temperature and high-pressure refrigerant to achieve heating and temperature rise.

[0039] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and 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 of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0042] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A multi-system dehumidifier, characterized in that, include: The return air chamber (1), heat exchange chamber (2), air supply chamber (3), and compressor chamber (4) are arranged in sequence. The air supply chamber (3) is equipped with a first temperature sensor. The heat exchange chamber (2) is equipped with an evaporator (5), an indoor condenser (6), and a surface cooler (7) in sequence. The evaporator (5) is located near the return air chamber (1). The compressor chamber (4) is equipped with multiple compressors (8) that can operate independently. The indoor condenser (6) is equipped with multiple independent refrigerant pipes that are connected to the multiple compressors (8) one by one. When the air supply temperature detected by the first temperature sensor is lower than the set target temperature, at least some of the compressors (8) switch to internal circulation mode and deliver high-temperature refrigerant to the indoor condenser (6) through the refrigerant pipes to heat the air temperature in the heat exchange chamber (2).

2. The multi-system dehumidifier according to claim 1, characterized in that, When the air supply temperature detected by the first temperature sensor is higher than the set target temperature, all the compressors (8) switch to external circulation mode. In the external circulation mode, the refrigerant pipe connected to the indoor condenser (6) is closed.

3. The multi-system dehumidifier according to claim 2, characterized in that, It also includes a titanium tube heat exchanger (9) and a second temperature sensor. The titanium tube heat exchanger (9) is used to heat the pool water and is connected to the compressor (8) through a pipe. The second temperature sensor is used to detect the temperature of the pool water. In the external circulation mode, when the water temperature detected by the second temperature sensor is lower than the target water temperature, the compressor (8) delivers high-temperature refrigerant to the titanium tube heat exchanger (9).

4. The multi-system dehumidifier according to claim 3, characterized in that, It also includes an outdoor condenser (18), which is connected to the compressor (8) via a pipe. In the external circulation mode, when the water temperature detected by the second temperature sensor is higher than the target water temperature, the compressor (8) delivers high-temperature refrigerant to the outdoor condenser (18) and the refrigerant pipeline connecting the titanium tube heat exchanger (9) and the compressor (8) is closed.

5. The multi-system dehumidifier according to any one of claims 1-4, characterized in that, The return air chamber (1) is equipped with a first fan (16), and the air supply chamber (3) is equipped with a second fan (17).

6. The multi-system dehumidifier according to any one of claims 1-4, characterized in that, The air supply chamber (3) is provided with an air supply outlet (10), and the first temperature sensor is located at the air supply outlet (10).

7. The multi-system dehumidifier according to any one of claims 1-4, characterized in that, A fresh exhaust air chamber (19) is provided between the return air chamber (1) and the heat exchange chamber (2). A sensible heat exchanger (15) is provided in the fresh exhaust air chamber (19). The sensible heat exchanger (15) has an A side, a B side, a C side and a D side. The A side is connected to the C side, and the B side is connected to the D side. The fresh exhaust air chamber (19) is also provided with a fresh air inlet (13) connected to the A side and an exhaust air inlet (14) connected to the B side. The C side is connected to the heat exchange chamber (2), and the D side is connected to the return air chamber (1).

8. The multi-system dehumidifier according to any one of claims 1-4, characterized in that, The surface cooler (7) is provided with an inlet (11) and an outlet (12). The inlet (11) is connected to an inlet pipe, and the outlet (12) is connected to an outlet pipe.

9. The multi-system dehumidifier according to any one of claims 1-4, characterized in that, The first temperature sensor detects the air supply temperature as T1, the set target temperature is T2, ΔT=T2-T1, and when 4℃≤ΔT≤8℃, at least part of the compressor (8) switches to internal circulation mode.

10. The multi-system dehumidifier according to any one of claims 1-4, characterized in that, The evaporator (5), the indoor condenser (6), and the surface cooler (7) are evenly spaced and arranged side by side in the heat exchange chamber (2).

Images