Fresh air solution dehumidification unit and air conditioner

Abstract

This invention provides a fresh air solution dehumidifier and an air conditioner. The fresh air solution dehumidifier includes a first heat exchange component, a second heat exchange component, a third heat exchange component, a fresh air duct, and a return air duct. The first heat exchange component includes a first heat pump system and a first liquid circulation device. The second heat exchange component includes a second heat pump system, a second liquid circulation device, and a third liquid circulation device. The third heat exchange component includes a third heat pump system, a fourth liquid circulation device, and a fifth liquid circulation device. The fresh air duct internally houses the first, second, fourth, fifth, and third heat exchangers. The return air duct internally houses the fifth, third, and first liquid circulation devices. The fresh air solution dehumidifier and air conditioner provided by this invention can solve the problems of single-mode operation and high power consumption in existing heat pump systems.

Description

Technical Field

[0001] This invention relates to the technical field of fresh air dehumidification equipment, and more specifically, to a fresh air solution dehumidification unit and an air conditioner. Background Technology

[0002] For some products on the market that require air drying, such as collagen casings, which are made from collagen fibers and used to prepare various sausages, they are easy to use, have a good taste, uniform diameter, high compressive strength, and can extend the product's shelf life, offering advantages over natural casings. In the production process of collagen casings, the surface of the casing needs to be coated with a liquid, and then dried before subsequent processes such as folding can be carried out. Therefore, drying the casings is a crucial step in the casing production process.

[0003] In existing technologies, the circulating air in the production tunnel is typically heated to 50-55°C, with a relative humidity generally below 20% and a dew point temperature below 21°C, before being blown onto the sausage casings. This hot, dry air removes moisture from the casings. After the circulating air absorbs moisture and cools down, it needs to be dehumidified and heated. Current heat pump systems, in order to maintain the preset humidity and temperature throughout the year, operate at high intensity year-round, resulting in significant power consumption.

[0004] As can be seen from the above, current heat pump systems suffer from a single operating mode and high power consumption. Summary of the Invention

[0005] The main objective of this invention is to provide a fresh air solution dehumidifier and an air conditioner to solve the problems of single mode and high power consumption in existing heat pump systems.

[0006] To achieve the above objectives, according to one aspect of the present invention, a fresh air solution dehumidifier unit is provided. The fresh air solution dehumidifier unit includes a first heat exchange assembly, which includes a first heat pump system and a first liquid circulation device. The first heat pump system includes a first heat exchanger and a second heat exchanger, and the first liquid circulation device is connected to the second heat exchanger for heat exchange. A second heat exchange assembly includes a second heat pump system, a second liquid circulation device, and a third liquid circulation device. The second heat pump system includes a third heat exchanger and a fourth heat exchanger, and the fourth heat exchanger is configured to exchange heat with the second liquid circulation device and / or the third liquid circulation device in a switchable manner. A third heat exchange assembly includes a third heat exchanger... The components include a third heat pump system, a fourth liquid circulation device, and a fifth liquid circulation device. The third heat pump system includes a fifth heat exchanger and a sixth heat exchanger. The sixth heat exchanger is connected to the fourth liquid circulation device, and the fourth and fifth liquid circulation devices can be switched on and off. A fresh air duct runs from the air inlet side to the air outlet side, and the first heat exchanger, the second liquid circulation device, the fourth liquid circulation device, the fifth heat exchanger, and the third heat exchanger are sequentially arranged inside the fresh air duct. A return air duct runs from the air inlet side to the air outlet side, and the fifth liquid circulation device, the third liquid circulation device, and the first liquid circulation device are sequentially arranged inside the return air duct.

[0007] Furthermore, the first liquid circulation device includes a first circulation tower, which has a first spray chamber and a first inlet and a first outlet connected to the first spray chamber, through which return air flows; a first storage tank, which is located on one side of the first circulation tower and connected to the first outlet; a first overflow pipe, which is provided on the first storage tank; a first circulation pipe, which is located between the outlet end of the first storage tank and the first inlet, and a second heat exchanger is connected to the first circulation pipe for heat exchange; and a first pump body, which is located on the first circulation pipe.

[0008] Furthermore, the first heat pump system has a cooling mode and a heating mode. The first heat pump system includes a first compressor; a first four-way valve, which is connected to the first compressor, the first heat exchanger, and the second heat exchanger; and a first expansion valve. The first compressor, the first four-way valve, the first heat exchanger, the first expansion valve, and the second heat exchanger cooperate to form a fluid circulation loop. When the first heat pump system is in cooling mode, the first compressor provides driving force for the fluid to flow sequentially through the first four-way valve to the second heat exchanger, the first expansion valve, the first heat exchanger, the first four-way valve, and the first compressor. The first heat exchanger is used to cool the fresh air, and the second heat exchanger is used to heat the liquid inside the first circulation pipe. When the first heat pump system switches to heating mode, the first four-way valve is adjusted, and the first compressor provides driving force for the fluid to flow sequentially through the first four-way valve to the first heat exchanger, the first expansion valve, the second heat exchanger, the first four-way valve, and the first compressor. The first heat exchanger is used to heat the fresh air, and the second heat exchanger is used to cool the liquid inside the first circulation pipe.

[0009] Furthermore, the second heat exchange assembly also includes a second liquid storage tank, with the outlet ends of the second liquid circulation device and the third liquid circulation device connected to the second liquid storage tank; a second overflow pipe, with the second liquid storage tank connected to the second overflow pipe; an outlet pipe, with one end connected to the outlet end of the second liquid storage tank, and a fourth heat exchanger connected to the outlet pipe for heat exchange; a second pump body, mounted on the outlet pipe; a second circulation pipe, positioned between the other end of the outlet pipe and the second liquid circulation device; a first regulating valve, mounted on the second circulation pipe; a third circulation pipe, positioned between the other end of the outlet pipe and the third liquid circulation device; and a second regulating valve, mounted on the third circulation pipe.

[0010] Furthermore, the second liquid circulation device includes a second circulation tower, which has a second spray chamber and a second inlet and a second outlet connected to the second spray chamber. The second outlet is connected to a second storage tank, and the second circulation pipe is connected to the second inlet. The third liquid circulation device includes a third circulation tower, which has a third spray chamber and a third inlet and a third outlet connected to the third spray chamber. The third outlet is connected to the second storage tank, and the third circulation pipe is connected to the third inlet.

[0011] Furthermore, the third heat exchange assembly also includes a connecting pipe through which the fourth liquid circulation device supplies liquid to the fifth liquid circulation device; a third regulating valve disposed on the connecting pipe; a return pipe through which the fifth liquid circulation device supplies liquid to the fourth liquid circulation device; a fourth regulating valve disposed on the return pipe; and a partition heat exchanger disposed on the connecting pipe and the return pipe, through which the liquid inside the connecting pipe and the return pipe exchanges heat.

[0012] Furthermore, the fourth liquid circulation device includes a fourth circulation tower, which has a fourth spray chamber and a fourth inlet and a fourth outlet connected to the fourth spray chamber; a fourth storage tank, which is connected to the fourth outlet and a return pipe; a fourth circulation pipe, which is disposed between the fourth storage tank and the fourth inlet, a sixth heat exchanger is disposed on the fourth circulation pipe, and a connecting pipe is connected to the fourth circulation pipe; and a fourth pump body, which is disposed on the fourth circulation pipe.

[0013] Furthermore, the fifth liquid circulation device includes a fifth circulation tower, which has a fifth spray chamber and a fifth inlet and a fifth outlet connected to the fifth spray chamber; a fifth storage tank, which is connected to the fifth outlet and a connecting pipe; a fifth circulation pipe, which is located between the fifth storage tank and the fifth inlet, and a return pipe is connected to the fifth circulation pipe; and a fifth pump body, which is located on the fifth circulation pipe.

[0014] Furthermore, the fresh air duct between the fifth heat exchanger and the third heat exchanger has a return air inlet. The return air mixes with the fresh air inside the fresh air duct after passing through the return air inlet and flows to the air outlet side of the fresh air duct.

[0015] Furthermore, the fresh air solution dehumidifier unit also includes an auxiliary heating element, which is located at the air outlet of the fresh air duct; a fresh air fan, which is located inside the fresh air duct; and a return air fan, which is located inside the return air duct.

[0016] According to another aspect of the present invention, an air conditioner is provided, which includes the above-described fresh air solution dehumidifier unit.

[0017] According to the technical solution of this invention, the fresh air solution dehumidifier unit includes a first heat exchange component, a second heat exchange component, a third heat exchange component, a fresh air duct, and a return air duct. The first heat exchange component includes a first heat pump system and a first liquid circulation device. The first heat pump system includes a first heat exchanger and a second heat exchanger. The first liquid circulation device is connected to the second heat exchanger for heat exchange. The second heat exchange component includes a second heat pump system, a second liquid circulation device, and a third liquid circulation device. The second heat pump system includes a third heat exchanger and a fourth heat exchanger. The fourth heat exchanger is connected to and / or connected to the second and / or third liquid circulation devices for heat exchange. The third heat exchange component includes a third heat pump system, a fourth liquid circulation device, and a fifth liquid circulation device. The third heat pump system includes a fifth heat exchanger and a sixth heat exchanger. The sixth heat exchanger is connected to the fourth liquid circulation device. The fourth and fifth liquid circulation devices are connected to and / or connected to each other.

[0018] Along the air inlet side of the fresh air duct towards the air outlet side, the interior of the fresh air duct is sequentially equipped with a first heat exchanger, a second liquid circulation device, a fourth liquid circulation device, a fifth heat exchanger, and a third heat exchanger to achieve heat exchange between the fresh air and the heat exchangers, and humidification with the liquid circulation devices. Along the air inlet side of the return air duct towards the air outlet side, the interior of the return air duct is sequentially equipped with a fifth liquid circulation device, a third liquid circulation device, and a first liquid circulation device. As the return air passes through the fifth, third, and first liquid circulation devices, it sequentially exchanges heat and moisture with the solutions inside each of these devices.

[0019] As can be seen from the above, the fresh air solution dehumidifier unit of this application, through the use of multiple heat exchange components, achieves heat and humidity exchange with fresh air and return air, thereby realizing heat recovery of the return air, improving the recycling of heat, reducing heat loss, and simultaneously, the return air can also be used to adjust the solubility of the solution inside the circulation device, thereby regulating the humidity of the fresh air. Furthermore, the second heat exchange component in this application has a second liquid circulation device and a third liquid circulation device, and each of the third heat exchange components has a fourth liquid circulation device and a fifth liquid circulation device. This allows the operating modes of the second and third heat exchange components to be adjusted in different seasons, enabling the fresh air solution dehumidifier unit of this application to perform different operating states in different seasons. By adjusting the operating state of the fresh air solution dehumidifier unit, the power consumption is reduced while ensuring the fresh air effect. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 A schematic diagram showing the connection relationship of the fresh air solution dehumidifier unit according to the present invention is shown.

[0022] The above figures include the following reference numerals:

[0023] 1. First heat pump system; 11. First compressor; 12. First four-way valve; 13. First heat exchanger; 14. First expansion valve; 15. Second heat exchanger; 16. First circulation tower; 17. First circulation pipe; 18. First overflow pipe; 19. First liquid storage tank; 110. First pump body; 2. Second heat pump system; 21. Second compressor; 22. Third heat exchanger; 23. Second expansion valve; 24. Fourth heat exchanger; 25. Second pump body; 26. Second liquid storage tank; 27. Second overflow pipe; 28. Second regulating valve; 29. ​​First regulating valve; 210. Second circulation pipe; 211. Third circulation pipe; 212. Second circulation tower; 213. First four-way valve; 214. First four-way valve; 115. First four-way valve; 116. Second four-way valve; 117. First four-way valve; 118. First four-way valve; 119. First four-way valve; 110. First four-way valve; 12. First four-way valve; 111. Second four-way valve; 12. First four-way valve; 13. First four-way valve; 14. First expansion valve; 15. Second four-way valve; 111. Second four-way valve; 12. Second four-way valve; 13. First four-way valve; 14. Second expansion valve; 15. Second four-way valve; 16. Second four-way valve; 17. First four-way valve; 18. First overflow pipe; 19. First four-way valve; 110. First four-way valve; 111. Second four-way valve; 12. First four-way valve; 112. Second four-way valve; 113. First four-way valve; 114. Second four-way valve; 115. Second four-way valve 214. Three-stage circulation tower; 3. Liquid outlet pipe; 3. Third heat pump system; 31. Third compressor; 32. Fifth heat exchanger; 33. Third expansion valve; 34. Sixth heat exchanger; 35. Fourth pump body; 36. Fourth liquid storage tank; 37. Fourth circulation pipe; 38. Fourth circulation tower; 39. Third regulating valve; 310. Indirect heat exchanger; 311. Fifth pump body; 312. Fifth liquid storage tank; 313. Fourth regulating valve; 314. Fifth circulation pipe; 315. Fifth circulation tower; 316. Connecting pipe; 317. Return pipe; 41. Fresh air fan; 42. Supply air fan; 43. Return air fan; 5. Auxiliary heating element; 6. Fresh air duct; 7. Return air duct. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0027] Example 1

[0028] To address the issues of single operating mode and high power consumption in existing heat pump systems, this embodiment provides a fresh air solution dehumidifier unit, which is applied inside an air conditioner.

[0029] like Figure 1As shown, the fresh air solution dehumidifier unit includes a first heat exchange component, a second heat exchange component, a third heat exchange component, a fresh air duct 6, and a return air duct 7. The first heat exchange component includes a first heat pump system 1 and a first liquid circulation device. The first heat pump system 1 includes a first heat exchanger 13 and a second heat exchanger 15. The first liquid circulation device is connected to the second heat exchanger 15 for heat exchange. The second heat exchange component includes a second heat pump system 2, a second liquid circulation device, and a third liquid circulation device. The second heat pump system 2 includes a third heat exchanger 22 and a fourth heat exchanger 24. The fourth heat exchanger 24 is connected to the second liquid circulation device and / or the third liquid circulation device for heat exchange. The third heat exchange component includes a third heat pump system 3, a fourth liquid circulation device, and a fifth liquid circulation device. The third heat pump system 3 includes a fifth heat exchanger 32 and a sixth heat exchanger 34. The sixth heat exchanger 34 is connected to the fourth liquid circulation device. The fourth and fifth liquid circulation devices are connected to each other.

[0030] Along the air inlet side of the fresh air duct 6 towards the air outlet side, the interior of the fresh air duct 6 is sequentially equipped with a first heat exchanger 13, a second liquid circulation device, a fourth liquid circulation device, a fifth heat exchanger 32, and a third heat exchanger 22 to achieve heat exchange between the fresh air and the heat exchangers, and humidification with the liquid circulation devices. Along the air inlet side of the return air duct 7 towards the air outlet side, the interior of the return air duct 7 is sequentially equipped with a fifth liquid circulation device, a third liquid circulation device, and a first liquid circulation device. As the return air passes through the fifth, third, and first liquid circulation devices within the return air duct 7, it sequentially exchanges heat and moisture with the liquids inside each of these devices.

[0031] Specifically, the fresh air solution dehumidifier unit of this application employs a structure with multiple heat exchange components to achieve heat and humidity exchange with both fresh and return air, thereby realizing heat recovery of the return air, improving the recycling of heat, and reducing heat loss. Simultaneously, the return air can also be used to adjust the solubility of the solution inside the circulation device, thus regulating the humidity of the fresh air. Furthermore, the second heat exchange component in this application has a second liquid circulation device and a third liquid circulation device, and each of the third heat exchange components has a fourth liquid circulation device and a fifth liquid circulation device. This allows the operating modes of the second and third heat exchange components to be adjusted according to different seasons, enabling the fresh air solution dehumidifier unit of this application to operate in different states during different seasons. By adjusting the operating state of the fresh air solution dehumidifier unit, power consumption is reduced while ensuring the effectiveness of fresh air intake.

[0032] Furthermore, the first heat exchanger 13 is a direct expansion tube, the third heat exchanger 22 is a direct expansion condenser, the fourth heat exchanger 24 is an evaporator, the fifth heat exchanger 32 is a direct expansion condenser, and the sixth heat exchanger 34 is an evaporator.

[0033] Furthermore, the second liquid circulation device is used to cool and dehumidify the fresh air, the fourth liquid circulation device is used to cool and dehumidify the fresh air, the third liquid circulation device is used to cool and dehumidify the return air, and the fifth liquid circulation device is used to cool and dehumidify the return air.

[0034] It should be noted that the liquid inside the first, second, and third liquid circulation devices in this application is water, while the liquid inside the fourth and fifth liquid circulation devices is a solution.

[0035] In this embodiment, the first liquid circulation device includes a first circulation tower 16, a first liquid storage tank 19, a first circulation pipe 17, and a first pump body 110. The first circulation tower 16 has a first spray chamber and a first liquid inlet and a first liquid outlet connected to the first spray chamber. Return air flows through the first spray chamber. The first liquid storage tank 19 is located on one side of the first circulation tower 16 and is connected to the first liquid outlet. The first circulation pipe 17 is located between the liquid outlet of the first liquid storage tank 19 and the first liquid inlet. The second heat exchanger 15 is connected to the first circulation pipe 17 for heat exchange. The first pump body 110 is located on the first circulation pipe 17.

[0036] Furthermore, the first circulation tower 16 has an air passage that communicates with the first spray chamber, and the return air flows through the air passage to exchange moisture and heat with the liquid inside the first circulation tower 16.

[0037] Furthermore, the first spray chamber has a first packing area, a first liquid inlet located above the first packing area, and a first liquid outlet located below the first packing area. The first liquid circulation device also includes a first spray head, which is located inside the first spray chamber and communicates with the first liquid inlet. The first spray head sprays liquid toward the first packing area, and the air exchange heat and humidity with the liquid inside the first packing area, thereby increasing the contact area for vapor-liquid heat and humidity exchange.

[0038] Furthermore, the first liquid circulation device also includes a first overflow pipe 18. The first liquid storage tank 19 is provided with a first overflow pipe 18 so that when the liquid inside the first liquid storage tank 19 absorbs the liquid inside the return air and causes excessive liquid inside the first liquid storage tank 19, it can be discharged from the first liquid storage tank 19 through the overflow pipe.

[0039] like Figure 1 As shown, the first heat pump system 1 includes a first compressor 11, a first four-way valve 12, a first expansion valve 14, a first heat exchanger 13, and a second heat exchanger 15. The first four-way valve 12 is connected to the first compressor 11, the first heat exchanger 13, and the second heat exchanger 15. The first compressor 11, the first four-way valve 12, the first heat exchanger 13, the first expansion valve 14, and the second heat exchanger 15 cooperate to form a fluid circulation loop.

[0040] The fluid is a refrigerant. After being compressed by the first compressor 11, the refrigerant becomes a high-temperature, high-pressure exhaust gas. After passing through the first expansion valve 14, the exhaust gas becomes a low-temperature refrigerant.

[0041] In this embodiment, the first heat pump system 1 has a cooling mode and a heating mode.

[0042] When the first heat pump system 1 is in cooling mode, the first compressor 11 provides driving force for the fluid to flow through the first four-way valve 12 in sequence through the second heat exchanger 15, the first expansion valve 14, the first heat exchanger 13, the first four-way valve 12, and the first compressor 11. The first heat exchanger 13 is used to cool the fresh air, and the second heat exchanger 15 is used to heat the liquid inside the first circulation pipe 17.

[0043] When the first heat pump system 1 switches to the heating mode, the first four-way valve 12 is adjusted, and the first compressor 11 provides driving force for the fluid to flow through the first four-way valve 12 in sequence through the first heat exchanger 13, the first expansion valve 14, the second heat exchanger 15, the first four-way valve 12, and the first compressor 11. The first heat exchanger 13 is used to heat the fresh air, and the second heat exchanger 15 is used to cool the liquid inside the first circulation pipe 17.

[0044] like Figure 1 As shown, the second heat exchange assembly also includes a second liquid storage tank 26, a second overflow pipe 27, a liquid outlet pipe 214, a second pump body 25, a second circulation pipe 210, a first regulating valve 29, a third circulation pipe 211, and a second regulating valve 28.

[0045] Specifically, the outlet ends of the second liquid circulation device and the third liquid circulation device are connected to the second liquid storage tank 26, one end of the outlet pipe 214 is connected to the outlet end of the second liquid storage tank 26, the fourth heat exchanger 24 is connected to the outlet pipe 214 for heat exchange, the second circulation pipe 210 is located between the other end of the outlet pipe 214 and the second liquid circulation device, and the third circulation pipe 211 is located between the other end of the outlet pipe 214 and the third liquid circulation device.

[0046] Furthermore, a second pump body 25 is installed on the liquid outlet pipe 214, and the second pump body 25 provides driving force for the liquid to flow out of the second liquid storage tank 26.

[0047] Furthermore, the first regulating valve 29 is provided on the second circulation pipe 210 to control the flow of liquid inside the second circulation pipe 210.

[0048] Furthermore, a second regulating valve 28 is provided on the third circulation pipe 211 to control the flow of liquid inside the third circulation pipe 211.

[0049] In this embodiment, the second liquid storage tank 26 is connected to a second overflow pipe 27 so that when there is too much liquid inside the second liquid storage tank 26, it can be discharged through the overflow pipe.

[0050] like Figure 1 As shown, the second liquid circulation device includes a second circulation tower 212, which has a second spray chamber and a second liquid inlet and a second liquid outlet connected to the second spray chamber. The second liquid outlet is connected to the second liquid storage tank 26, and the second circulation pipe 210 is connected to the second liquid inlet.

[0051] Specifically, by controlling the first regulating valve 29, the liquid inside the second storage tank 26 can be directed to the second circulation tower 212.

[0052] Furthermore, the second liquid circulation device also includes a second spray head disposed inside the second spray chamber. The second spray chamber has a second packing zone inside. The second spray head is connected to the second liquid inlet and sprays liquid into the second packing zone. The second circulation tower 212 has a second air passage structure. Fresh air can flow through the second air passage structure through the second packing zone to exchange heat and humidity with the liquid inside the second circulation tower 212 inside the second packing zone.

[0053] Furthermore, the third liquid circulation device includes a third circulation tower 213, which has a third spray chamber and a third liquid inlet and a third liquid outlet connected to the third spray chamber. The third liquid outlet is connected to the second liquid storage tank 26, and the third circulation pipe 211 is connected to the third liquid inlet.

[0054] The liquid inside the second storage tank 26 can be directed to the third circulation tower 213 by controlling the second regulating valve 28.

[0055] Furthermore, the third liquid circulation device also includes a third spray head disposed inside the third spray chamber. The third spray chamber has a third packing zone inside. The third spray head is connected to the third liquid inlet and sprays liquid into the third packing zone. The third circulation tower 213 has a third air passage structure. Return air can flow through the third air passage structure through the third packing zone to exchange heat and humidity with the liquid inside the third circulation tower 213 inside the third packing zone.

[0056] In this embodiment, the third heat exchanger 22 is used to heat the fresh air, and the fourth heat exchanger 24 is used to cool the liquid inside the second or third liquid circulation device. The second heat exchange component has a cooling mode and a heating mode. When the second heat exchange component is in cooling mode, the first valve body is open and the second valve body is closed, so that the liquid inside the second liquid circulation device is cooled through the fourth heat exchanger 24, thereby achieving cooling and dehumidification of the fresh air. When the second heat exchange component is in heating mode, the first valve body is closed and the second valve body is open, so that the liquid inside the third liquid circulation device is cooled through the fourth heat exchanger 24, thereby achieving cooling and dehumidification of the return air.

[0057] It should be noted that when cooling and dehumidifying the fresh air and return air, the moisture absorbed during dehumidification will lead to an increase in liquid. Therefore, the liquid inside the second liquid storage tank 26 will increase. The liquid can be drained out by setting the second overflow pipe 27.

[0058] In this embodiment, the second heat pump system 2 includes a second compressor 21, a third heat exchanger 22, a second expansion valve 23, and a fourth heat exchanger 24 that are connected in series.

[0059] like Figure 1 As shown, the third heat exchange assembly also includes a connecting pipe 316, a third regulating valve 39, a return pipe 317, a fourth regulating valve 313, and a partition heat exchanger 310. The fourth liquid circulation device supplies liquid to the fifth liquid circulation device through the connecting pipe 316. The third regulating valve 39 is installed on the connecting pipe 316. The fifth liquid circulation device supplies liquid to the fourth liquid circulation device through the return pipe 317. The fourth regulating valve 313 is installed on the return pipe 317. The partition heat exchanger 310 is installed on the connecting pipe 316 and the return pipe 317. The liquid inside the connecting pipe 316 and the return pipe 317 exchanges heat through the partition heat exchanger 310.

[0060] Specifically, the fourth and fifth liquid circulation devices can achieve liquid circulation through a connecting pipe 316 and a return pipe 317, and the liquid between the connecting pipe 316 and the return pipe 317 can exchange heat through a partition heat exchanger 310.

[0061] Furthermore, the fourth liquid circulation device includes a fourth circulation tower 38, a fourth liquid storage tank 36, a fourth circulation pipe 37, and a fourth pump body 35. The fourth circulation tower 38 has a fourth spray chamber and a fourth liquid inlet and a fourth liquid outlet connected to the fourth spray chamber. The fourth liquid outlet is connected to the fourth liquid storage tank 36. The return pipe 317 is connected to the fourth liquid storage tank 36. The fourth circulation pipe 37 is located between the fourth liquid storage tank 36 and the fourth liquid inlet. The sixth heat exchanger 34 is located on the fourth circulation pipe 37. The connecting pipe 316 is connected to the fourth circulation pipe 37. The fourth pump body 35 is located on the fourth circulation pipe 37.

[0062] The fourth circulation tower 38 has a fourth spray chamber and a fourth liquid inlet and a fourth liquid outlet connected to the fourth spray chamber. The fourth liquid outlet is connected to the fourth liquid storage tank 36, and the fourth circulation pipe 37 is connected to the fourth liquid inlet.

[0063] Furthermore, the third regulating valve 39 and the fourth regulating valve 313 are throttle valves.

[0064] Furthermore, the fourth liquid circulation device also includes a fourth spray head disposed inside the fourth spray chamber. The fourth spray chamber has a fourth packing zone inside. The fourth spray head is connected to the fourth liquid inlet and sprays liquid into the fourth packing zone. The fourth circulation tower 38 has a fourth air passage structure. Fresh air can flow through the fourth air passage structure through the fourth packing zone to exchange heat and humidity with the liquid inside the fourth circulation tower 38 inside the fourth packing zone.

[0065] In this embodiment, the fifth liquid circulation device includes a fifth circulation tower 315, a fifth storage tank 312, a fifth circulation pipe 314, and a fifth pump body 311. The fifth circulation tower 315 has a fifth spray chamber and a fifth inlet and a fifth outlet connected to the fifth spray chamber. The fifth outlet is connected to the fifth storage tank 312, and a connecting pipe 316 is connected to the fifth storage tank 312. The fifth circulation pipe 314 is located between the fifth storage tank 312 and the fifth inlet. A return pipe 317 is connected to the fifth circulation pipe 314, and the fifth pump body 311 is located on the fifth circulation pipe 314.

[0066] The fifth circulation tower 315 has a fifth spray chamber and a fifth liquid inlet and a fifth liquid outlet connected to the fifth spray chamber. The fifth liquid outlet is connected to the fifth liquid storage tank 312, and the fifth circulation pipe 314 is connected to the fifth liquid inlet.

[0067] Furthermore, the fifth liquid circulation device also includes a fifth spray head disposed inside the fifth spray chamber. The fifth spray chamber has a fifth packing zone inside. The fifth spray head is connected to the fifth liquid inlet and sprays liquid into the fifth packing zone. The fifth circulation tower 315 has a fifth air passage structure. Return air can flow through the fifth air passage structure through the fifth packing zone to exchange heat and humidity with the liquid inside the fifth circulation tower 315 inside the fifth packing zone.

[0068] In this embodiment, the third heat pump system 3 includes a third compressor 31, a fifth heat exchanger 32, a third expansion valve 33, and a sixth heat exchanger 34 that are connected in series.

[0069] like Figure 1 As shown, the fresh air duct 6 between the fifth heat exchanger 32 and the third heat exchanger 22 has a return air inlet. The return air mixes with the fresh air inside the fresh air duct 6 after passing through the return air inlet and flows to the air outlet side of the fresh air duct 6.

[0070] Specifically, the return air is high-temperature gas. The return air merges with the fresh air through the return air inlet and flows inside the fresh air duct 6. The return air has the effect of replenishing air to enhance gas flow. At the same time, the return air flows back into the room through the return air inlet and the fresh air duct 6 to form a circulation channel, thereby improving the full utilization of gas heat.

[0071] Furthermore, the fresh air solution dehumidifier unit also includes an auxiliary heating element 5, which is installed at the air outlet of the fresh air duct 6 to further heat the gas flowing out of the fresh air duct 6 to ensure the preset temperature of the gas.

[0072] Among them, the auxiliary heating element 5 can be an electric heating plate.

[0073] Furthermore, the fresh air solution dehumidifier unit also includes a fresh air fan 41 and a return air fan 43. The fresh air fan 41 is installed inside the fresh air duct 6 to provide driving force for the flow of fresh air, and the return air fan 43 is installed inside the return air duct 7 to provide driving force for the flow of return air.

[0074] In this embodiment, since the return air needs to enter the interior of the fresh air duct 6 through the return air inlet, in order to ensure that the combined fresh air and return air both flow through the third heat exchanger 22 and the auxiliary heating element 5, a blower 42 is provided on the side of the auxiliary heating plate away from the air inlet of the fresh air duct 6 inside the fresh air duct 6 to provide driving force for the flow of fresh air and return air.

[0075] The fresh air solution dehumidifier unit of this application operates in different states in different seasons. It operates in the first state during summer, in one of the second or third states during the spring / autumn transition season, and in the fourth state during winter. In the third state, the enthalpy of the fresh air is lower than that in the second state. In the first state, the enthalpy of the fresh air is greater than that in the second state; in the second state, the enthalpy of the fresh air is greater than that in the third state; and in the third state, the enthalpy of the fresh air is greater than that in the fourth state.

[0076] When the first working state is executed, the first heat pump system 1 is in cooling mode, the second regulating valve 28 is closed, and the first regulating valve 29 is opened. At this time, the first heat exchanger 13 is an evaporator used to cool the fresh air; the fourth heat exchanger 24 is used to cool the liquid inside the liquid outlet pipe 214. When the fresh air flows through the interior of the second circulation tower 212, the fresh air is further cooled and dehumidified; the sixth heat exchanger 34 is used to cool the liquid inside the fourth circulation pipe 37. When the fresh air flows through the interior of the fourth circulation tower 38, it is further cooled and dehumidified. The liquid inside the fourth circulation tower 38 is diluted and flows to the fourth liquid storage tank 36; the fresh air is initially heated when it flows through the fifth heat exchanger. After the initial heating, it merges with the return air and flows to the third heat exchanger 22 for further heating. Finally, the fresh air flows through the auxiliary heating element 5 for heating and then flows out of the fresh air duct 6.

[0077] When the return air flows through the fifth circulation tower 315, it is cooled and humidified. After cooling and humidification, the return air flows to the first circulation tower 16. The second heat exchanger 15 is a condenser to heat the liquid inside the first circulation pipe 17. When the return air flows through the first circulation tower 16, it is heated and humidified before flowing out of the return air duct 7. The liquid inside the fifth circulation tower 315 is concentrated and flows to the fifth liquid storage tank 312. The liquid inside the fifth liquid storage tank 312 and the fourth liquid storage tank 36 achieve dynamic equilibrium of liquid solubility through the connecting pipe 316 and the return pipe 317. The liquid inside the connecting pipe 316 and the return pipe 317 exchanges heat through the partition heat exchanger 310.

[0078] When the second working state is executed, the first heat pump system 1 is shut down, the second regulating valve 28 is closed, the first regulating valve 29 is opened, the fourth heat exchanger 24 is used to cool the liquid inside the liquid outlet pipe 214, and when the fresh air flows through the interior of the second circulation tower 212, the fresh air is further cooled and dehumidified; the sixth heat exchanger 34 is used to cool the liquid inside the fourth circulation pipe 37, and when the fresh air flows through the interior of the fourth circulation tower 38, it is further cooled and dehumidified, and the liquid inside the fourth circulation tower 38 is diluted and flows to the fourth liquid storage tank 36; when the fresh air flows through the fifth heat exchanger, it is initially heated, and after the initial heating, it merges with the return air and flows to the third heat exchanger 22 for further heating, and finally the fresh air flows through the auxiliary heating element 5 for heating and then flows out of the fresh air duct 6.

[0079] When the return air flows through the fifth circulation tower 315, it is cooled and humidified before flowing out of the return air duct 7. The liquid inside the fifth circulation tower 315 is concentrated and flows to the fifth storage tank 312. The liquid inside the fifth storage tank 312 and the fourth storage tank 36 achieves dynamic equilibrium of liquid solubility through the connecting pipe 316 and the return pipe 317. The liquid inside the connecting pipe 316 and the return pipe 317 exchanges heat through the partition heat exchanger 310.

[0080] When the third working state is executed, the first heat pump system 1 is shut down, the second regulating valve 28 is opened, the first regulating valve 29 is closed, the sixth heat exchanger 34 is used to cool the liquid inside the fourth circulation pipe 37, the fresh air is further cooled and dehumidified when it flows through the interior of the fourth circulation tower 38, the liquid inside the fourth circulation tower 38 is diluted and flows to the fourth liquid storage tank 36; the fresh air is initially heated when it flows through the fifth heat exchanger, and after the initial heating, it merges with the return air and flows to the third heat exchanger 22 for further heating, and finally the fresh air flows through the auxiliary heating element 5 for heating and then flows out of the fresh air duct 6.

[0081] The return air is cooled and humidified as it flows through the fifth circulation tower 315. After cooling and humidification, the return air flows to the third circulation tower 213. The fourth heat exchanger 24 is used to cool the liquid inside the liquid outlet pipe 214. The return air is further cooled and dehumidified after flowing through the third circulation tower 213 before flowing out of the return air duct 7. The liquid inside the fifth circulation tower 315 is concentrated and flows to the fifth liquid storage tank 312. The liquid inside the fifth liquid storage tank 312 and the fourth liquid storage tank 36 achieve dynamic equilibrium of liquid solubility through the connecting pipe 316 and the return pipe 317. Furthermore, the liquid inside the connecting pipe 316 and the return pipe 317 exchanges heat through the partition wall heat exchanger 310.

[0082] When the fourth working state is executed, the first heat pump system 1 executes the heating mode, the third heat pump system 3 is turned off, the second regulating valve 28 is opened, and the first regulating valve 29 is closed. At this time, the first heat exchanger 13 acts as a condenser to heat the fresh air. The heated fresh air and return air merge and flow to the third heat exchanger 22 to be further heated. Finally, the fresh air flows through the auxiliary heating element 5 and is heated before flowing out of the fresh air duct 6.

[0083] The fourth heat exchanger 24 is used to cool the liquid inside the liquid outlet pipe 214. The return air flows through the third circulation tower 213 and is cooled and dehumidified before flowing to the first circulation tower 16. The second heat exchanger 15 is an evaporator to cool the liquid inside the first circulation pipe 17. The return air flows through the first circulation tower 16 and is cooled and dehumidified before flowing out of the return air duct 7.

[0084] Example 2

[0085] This embodiment provides an air conditioner, which includes the fresh air solution dehumidifier unit from Embodiment 1.

[0086] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0087] This application's fresh air solution dehumidifier unit employs a structure with multiple heat exchange components to achieve heat and humidity exchange with both fresh and return air. This enables heat recovery from the return air, improving heat recycling and reducing heat loss. Simultaneously, the return air can be used to adjust the solubility of the solution within the circulation device, thereby regulating the humidity of the fresh air. Furthermore, the second heat exchange component in this application has a second and a third liquid circulation device, and each of the third heat exchange components has a fourth and a fifth liquid circulation device. This allows the operating modes of the second and third heat exchange components to be adjusted according to different seasons, enabling the fresh air solution dehumidifier unit to operate in different states during different seasons. By adjusting the operating state of the fresh air solution dehumidifier unit, power consumption is reduced while ensuring the effectiveness of fresh air intake.

[0088] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0089] 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.

[0090] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0091] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fresh air solution dehumidification unit, characterized in that, include: The first heat exchange component includes a first heat pump system (1) and a first liquid circulation device. The first heat pump system (1) includes a first heat exchanger (13) and a second heat exchanger (15). The first liquid circulation device is connected to the second heat exchanger (15) for heat exchange. The first heat pump system includes a first compressor (11); The first heat exchanger (13) is used to cool the fresh air, and the second heat exchanger (15) is used to heat the liquid in the first liquid circulation device; or The first heat exchanger (13) is used to heat fresh air, and the second heat exchanger (15) is used to cool the liquid in the first liquid circulation device; The second heat exchange assembly includes a second heat pump system (2), a second liquid circulation device and a third liquid circulation device. The second heat pump system (2) includes a second compressor (21), a third heat exchanger (22) and a fourth heat exchanger (24). The third heat exchanger (22) is a condenser and the fourth heat exchanger (24) is an evaporator. The fourth heat exchanger (24) is configured to exchange heat with the second liquid circulation device and / or the third liquid circulation device in a switchable manner. The third heat exchange component includes a third heat pump system (3), a fourth liquid circulation device and a fifth liquid circulation device. The third heat pump system (3) includes a third compressor (31), a fifth heat exchanger (32) and a sixth heat exchanger (34). The fifth heat exchanger (32) is a condenser and the sixth heat exchanger (34) is an evaporator. The sixth heat exchanger (34) is connected to the fourth liquid circulation device. The fourth liquid circulation device and the fifth liquid circulation device can be switched on and off. The fresh air duct (6) is arranged in the direction from the air inlet side to the air outlet side. The fresh air duct (6) is provided with the first heat exchanger (13), the second liquid circulation device, the fourth liquid circulation device, the fifth heat exchanger (32), and the third heat exchanger (22) in sequence inside. The return air duct (7) is arranged in the direction from the air inlet side to the air outlet side. The fifth liquid circulation device, the third liquid circulation device, and the first liquid circulation device are arranged sequentially inside the return air duct (7).

2. The fresh air solution dehumidification unit of claim 1, wherein, The first liquid circulation device includes: The first circulation tower (16) has a first spray chamber and a first liquid inlet and a first liquid outlet connected to the first spray chamber, and the return air flows through the first spray chamber; The first liquid storage tank (19) is located on one side of the first circulation tower (16) and is connected to the first liquid outlet. The first overflow pipe (18) is provided on the first liquid storage tank (19). The first circulation pipe (17) is located between the liquid outlet of the first liquid storage tank (19) and the first liquid inlet. The second heat exchanger (15) is connected to the first circulation pipe (17) for heat exchange. The first pump body (110) is disposed on the first circulation pipe (17).

3. The fresh air solution dehumidification unit of claim 2, wherein, The first heat pump system (1) has a cooling mode and a heating mode, and the first heat pump system (1) includes: The first four-way valve (12) is connected to the first compressor (11), the first heat exchanger (13) and the second heat exchanger (15); The first expansion valve (14), the first compressor (11), the first four-way valve (12), the first heat exchanger (13), the first expansion valve (14) and the second heat exchanger (15) cooperate to form a fluid circulation loop; When the first heat pump system (1) is in the cooling mode, the first compressor (11) provides driving force for the fluid to flow through the first four-way valve (12) in sequence through the second heat exchanger (15), the first expansion valve (14), the first heat exchanger (13), the first four-way valve (12), and the first compressor (11). The first heat exchanger (13) is used to cool the fresh air, and the second heat exchanger (15) is used to heat the liquid inside the first circulation pipe (17). When the first heat pump system (1) switches to the heating mode, the first four-way valve (12) is adjusted, and the first compressor (11) provides driving force for the fluid to flow through the first four-way valve (12) in sequence through the first heat exchanger (13), the first expansion valve (14), the second heat exchanger (15), the first four-way valve (12), and the first compressor (11). The first heat exchanger (13) is used to heat the fresh air, and the second heat exchanger (15) is used to cool the liquid inside the first circulation pipe (17).

4. The fresh air solution dehumidification unit of claim 1, wherein, The second heat exchange component also includes: The second liquid storage tank (26) is connected to the liquid outlet of the second liquid circulation device and the liquid outlet of the third liquid circulation device. The second overflow pipe (27) is connected to the second liquid storage tank (26); The liquid outlet pipe (214) is connected at one end to the liquid outlet end of the second liquid storage tank (26), and the fourth heat exchanger (24) is connected to the liquid outlet pipe (214) for heat exchange. The second pump body (25) is disposed on the liquid outlet pipe (214); The second circulation pipe (210) is disposed between the other end of the outlet pipe (214) and the second liquid circulation device; The first regulating valve (29) is disposed on the second circulation pipe (210); The third circulation pipe (211) is disposed between the other end of the liquid outlet pipe (214) and the third liquid circulation device; The second regulating valve (28) is disposed on the third circulation pipe (211).

5. The fresh air solution dehumidifier unit according to claim 4, characterized in that, The second liquid circulation device includes a second circulation tower (212), the second circulation tower (212) has a second spray chamber and a second liquid inlet and a second liquid outlet connected to the second spray chamber, the second liquid outlet is connected to the second liquid storage tank (26), and the second circulation pipe (210) is connected to the second liquid inlet; The third liquid circulation device includes a third circulation tower (213), which has a third spray chamber and a third liquid inlet and a third liquid outlet connected to the third spray chamber. The third liquid outlet is connected to the second liquid storage tank (26), and the third circulation pipe (211) is connected to the third liquid inlet.

6. The fresh air solution dehumidification unit of claim 1, wherein, The third heat exchange component also includes: The fourth liquid circulation device supplies liquid to the fifth liquid circulation device through the connecting pipe (316); The third regulating valve (39) is disposed on the connecting pipe (316); The fifth liquid circulation device supplies liquid to the fourth liquid circulation device through the return pipe (317); A fourth regulating valve (313) is provided on the return pipe (317); A partition heat exchanger (310) is provided on the connecting pipe (316) and the return pipe (317), through which the liquid inside the connecting pipe (316) and the return pipe (317) exchanges heat.

7. The fresh air solution dehumidification unit of claim 6, wherein, The fourth liquid circulation device includes: The fourth circulation tower (38) has a fourth spray chamber and a fourth liquid inlet and a fourth liquid outlet connected to the fourth spray chamber; The fourth liquid storage tank (36) is connected to the fourth liquid outlet and the return pipe (317) is connected to the fourth liquid storage tank (36). The fourth circulation pipe (37) is located between the fourth liquid storage tank (36) and the fourth liquid inlet. The sixth heat exchanger (34) is located on the fourth circulation pipe (37). The connecting pipe (316) is connected to the fourth circulation pipe (37). The fourth pump body (35) is disposed on the fourth circulation pipe (37).

8. The fresh air solution dehumidification unit of claim 6, wherein, The fifth liquid circulation device includes: The fifth circulation tower (315) has a fifth spray chamber and a fifth liquid inlet and a fifth liquid outlet connected in communication with the fifth spray chamber; The fifth liquid storage tank (312) is connected to the fifth liquid outlet, and the connecting pipe (316) is connected to the fifth liquid storage tank (312). The fifth circulation pipe (314) is disposed between the fifth liquid storage tank (312) and the fifth liquid inlet, and the return pipe (317) is connected to the fifth circulation pipe (314); The fifth pump body (311) is disposed on the fifth circulation pipe (314).

9. The fresh air solution dehumidification unit according to any one of claims 1 to 8, characterized in that, The fresh air duct (6) between the fifth heat exchanger (32) and the third heat exchanger (22) has a return air inlet. The return air mixes with the fresh air inside the fresh air duct (6) after passing through the return air inlet and flows to the air outlet side of the fresh air duct (6).

10. The fresh air solution dehumidification unit according to any one of claims 1 to 8, wherein, The fresh air solution dehumidifier unit also includes: An auxiliary heating element (5) is provided at the air outlet of the fresh air duct (6); Fresh air fan (41), the fresh air fan (41) is installed inside the fresh air duct (6); Return air fan (43), which is installed inside the return air duct (7).

11. An air conditioner characterized by comprising: The air conditioner includes the fresh air solution dehumidifier unit according to any one of claims 1 to 10.

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