Constant temperature dehumidification heat pump with ultraviolet photocatalyst disinfection and sterilization function

Abstract

The present application relates to heat pump air conditioning system technical field, especially disclose a constant temperature dehumidification heat pump with ultraviolet light catalyst disinfection and sterilization function, including main casing and airtight baffle, airtight baffle separates the casing inner chamber into fresh air processing chamber and internal circulation processing chamber;Fresh air processing chamber is equipped with first air port, first filter assembly, first heat exchange component, first fan, compressor and second air port;Internal circulation processing chamber is equipped with third air port, second filter assembly, heat pipe assembly, first ultraviolet sterilization assembly, second heat exchange component, wet film assembly and second fan;Internal circulation processing chamber is also provided with first baffle and second baffle, fourth air port is arranged on the first baffle, the bottom of internal circulation processing chamber is provided with fifth air port;It also includes sealed waterproof tank and built-in electric control device;Electric control device is electrically connected with compressor, first heat exchange component, first fan, second fan, first ultraviolet sterilization assembly, second heat exchange component, wet film assembly and second fan.

Description

Technical Field

[0001] This invention relates to the field of heat pump air conditioning system technology, and in particular discloses a constant temperature dehumidifying heat pump with ultraviolet photocatalytic disinfection and sterilization function. Background Technology

[0002] Existing heat pump air conditioning equipment mostly adopts a dual-duct structure to achieve fresh air treatment and indoor air circulation temperature and humidity control. However, traditional equipment only has basic cooling and dehumidification, heating and humidification functions, lacking systematic air sterilization capabilities. It cannot achieve full-coverage sterilization of fresh air and indoor circulating airflow, and the indoor air cleanliness is difficult to meet the requirements of healthy buildings and clean environments. At the same time, the design of the cold and heat circulation and heat recovery structure of traditional equipment is unreasonable, resulting in low energy transfer efficiency, high operating energy consumption, insufficient integration of functional modules, and poor synergy and adaptability between fresh air treatment and internal circulation temperature and humidity control. It cannot achieve high efficiency and energy saving and full-area air purification while ensuring constant temperature and humidity, which does not meet the development requirements of the strategic emerging industry of energy conservation and environmental protection. The overall performance of the equipment has obvious shortcomings. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide a constant temperature dehumidification heat pump device that combines fresh air dehumidification, internal circulation constant temperature humidification, heat pipe heat recovery and ultraviolet photocatalytic disinfection and sterilization functions.

[0004] To achieve the above objectives, the present invention provides a constant temperature dehumidifying heat pump with ultraviolet photocatalytic disinfection and sterilization function, comprising a main housing and an airtight partition disposed within the main housing. The airtight partition divides the inner cavity of the housing into an independent fresh air treatment chamber and an internal circulation treatment chamber. The fresh air treatment chamber is provided with a first air outlet, a first filter assembly, a first heat exchange assembly, a first fan, a compressor, and a second air outlet. The internal circulation treatment chamber is provided with a third air outlet, a second filter assembly, a heat pipe assembly, a first ultraviolet sterilization assembly, a second heat exchange assembly, a wet film assembly, and a second fan arranged sequentially along the airflow direction. The internal circulation treatment chamber is also provided with a first partition and a second partition. A fourth air outlet is opened on the first partition, and the second fan is located between the first partition and the second partition. A fifth air outlet is provided at the bottom of the internal circulation treatment chamber, and the gap between the fifth air outlet and the first partition and the second partition is connected. It also includes a sealed waterproof box located on the side of the second partition away from the second fan and an electrical control device located inside the sealed waterproof box; the electrical control device is electrically connected to the compressor, the first heat exchange component, the first fan, the second fan, the first ultraviolet sterilization component, the second heat exchange component, the wet film component and the second fan.

[0005] Furthermore, the heat pipe assembly has a cross-cavity structure, consisting of two sets of heat pipes and a set of intermediate pipes, with the intermediate pipes passing through the fresh air handling cavity.

[0006] Furthermore, the first ultraviolet sterilization component includes a pull-out bracket, a photocatalytic filter detachably mounted on the pull-out bracket, and an ultraviolet lamp tube, with the ultraviolet lamp tube arranged facing the photocatalytic filter tube; the inner circulation processing chamber is provided with a guide rail part that aligns with the pull-out bracket, and the pull-out bracket is detachably installed in the inner circulation processing chamber through the guide rail part.

[0007] Furthermore, it also includes a second ultraviolet sterilization component, which is disposed in the fresh air treatment chamber and located between the first heat exchange component and the first fan; the first heat exchange component is an evaporator; the first ultraviolet sterilization component and the second ultraviolet sterilization component have the same structure and are used to achieve independent sterilization of the internal circulation airflow and the fresh airflow, respectively.

[0008] Furthermore, a baffle plate is provided inside the fresh air handling chamber. The baffle plate includes a first plate, a second plate, a third plate, and a fourth plate connected in sequence in a "U" shape. The baffle plate encloses and forms an air guiding channel. The air guiding channel has a converging section and a expanding section along the airflow direction. The first fan is installed at the converging section, and the second air outlet is located near the end of the expanding section. The first air outlet is connected to outdoor air, and the second air outlet is connected to the indoor space through a duct.

[0009] Furthermore, the first heat exchange component includes an evaporator, a first water receiving tray disposed below the evaporator, a first water pump disposed within the first water receiving tray, and a first float switch electrically connected to the first water pump; the first water receiving tray, the first water pump, and the first float switch constitute an independent drainage and overflow protection unit for the fresh air handling chamber to prevent water from overflowing from the first water receiving tray.

[0010] Furthermore, the second heat exchange component includes a heat pump condenser, a second water receiving pan disposed below the heat pump condenser, a second water pump disposed within the second water receiving pan, and a second float switch electrically connected to the second water pump; the second water receiving pan, the second water pump, and the second float switch constitute an independent drainage and overflow protection unit for the inner circulation processing chamber.

[0011] Furthermore, the wet membrane assembly includes an inlet pipe, a wet membrane humidifying packing layer, a water distribution pipe disposed on top of the wet membrane humidifying packing layer, a solenoid valve for controlling the flow of water, a filter disposed at the inlet pipe, and a check valve connected in series between the solenoid valve and the water distribution pipe; external water source enters the water distribution pipe after passing through the inlet pipe, filter, solenoid valve, and check valve in sequence, and the water distribution pipe is evenly distributed with multiple water drop holes, and the water falling from the water drop holes is evenly sprayed onto the wet membrane humidifying packing.

[0012] Furthermore, the second filtration unit includes a first frame, a second insect-proof net, a primary filter layer, and a high-efficiency filter layer sequentially arranged on the first frame along the airflow direction; the second insect-proof net is a metal insect-proof net, and the first frame is detachably snapped into the internal circulation processing chamber; the windward side of the second insect-proof net faces the third air outlet, and the air outlet side of the high-efficiency filter layer faces the first ultraviolet sterilization component.

[0013] Furthermore, it also includes an electric heating component, which is disposed between the first ultraviolet sterilization component and the second heat exchange component; the second heat exchange component is a heat pump condenser; the electric heating component includes a first support plate, a mounting frame disposed on the first support plate, and an electric heater disposed on the mounting frame; the electric heating component is used to provide auxiliary heating for the internal circulating airflow, and cooperates with the second heat exchange component to heat the airflow that has not undergone wet film humidification treatment.

[0014] Furthermore, the electronic control device is configured to control the dehumidifying heat pump to switch between multiple operating conditions: the operating conditions include at least fresh air dehumidification, internal circulation purification and sterilization, constant temperature humidification, and heat pipe heat recovery energy saving. Under fresh air dehumidification mode: the compressor, the first heat exchange component and the first fan are turned on. Outdoor fresh air enters the fresh air handling chamber through the first air outlet, and is filtered by the first filter component, cooled and dehumidified by the first heat exchange component, and reheated by the heat pipe component condensation heat exchange section before being sent into the room through the second air outlet. Under the internal circulation purification and sterilization mode: the second fan and the first ultraviolet sterilization component are turned on, and the indoor return air enters the internal circulation treatment chamber through the third air outlet. After being filtered by the second filter component and photocatalytically sterilized by the first ultraviolet sterilization component, it is sent back to the room through the fifth air outlet. Under constant temperature and humidification conditions: the second fan, electric heating component, second heat exchange component and wet film component are turned on. After the indoor return air is heated by the electric heating component and the second heat exchange component, it enters the wet film component to complete isenthalpic humidification and is sent back to the room through the fifth air outlet to achieve constant temperature and humidity regulation in the room. Under the heat pipe heat recovery energy-saving operation, the first fan and the second fan operate synchronously. The heat pipe assembly recovers the waste heat of the internal circulation airflow across the airtight partition and transfers the heat to the fresh air side to preheat or reheat the airflow, thereby reducing the operating energy consumption of the electric heating and cooling system.

[0015] Furthermore, the first filter assembly includes a first insect-proof net disposed on the side wall of the main housing corresponding to the fresh air treatment chamber, and an electric louvered damper disposed in the fresh air treatment chamber. The electric louvered damper is located between the first insect-proof net and the first heat exchange assembly and is used to control the opening and closing of the fresh air passage and adjust its opening degree.

[0016] To solve the aforementioned technical problems, this invention employs an airtight partition to divide the inner cavity of the shell into two independent fresh air handling chambers and an internal circulation handling chamber, achieving complete isolation between the fresh air handling airflow and the indoor circulating airflow. The fresh air handling chamber is equipped with an evaporator, a fresh air sterilization component, and a heat pipe condenser section to perform filtration, cooling, dehumidification, sterilization, reheating, and air supply operations for the outdoor fresh air. The internal circulation handling chamber is sequentially arranged with a filter component, a heat pipe evaporator section, a pluggable ultraviolet photocatalytic sterilization component, an electric heating component, a heat pump condenser, and a wet film component to achieve residual heat from the indoor return air. With heat recovery, multi-stage filtration, photocatalytic sterilization, two-stage heat replenishment and constant temperature, and isenthalpic humidification, the equipment intelligently switches between various operating conditions such as fresh air dehumidification, internal circulation sterilization, constant temperature humidification, and heat pipe heat recovery through an electronic control device. It utilizes cross-cavity heat pipe components to efficiently transfer the waste heat from the internal circulation to the fresh air side. Combined with a dual-cavity independent drainage overflow protection structure and a modular pluggable sterilization structure, it achieves a high degree of integration of temperature and humidity control, waste heat recovery, and all-area air sterilization functions of a heat pump air conditioning system without changing the main structure of the equipment. It is fully compatible with the classification specifications and technical requirements of F24F5 class air conditioning equipment.

[0017] The beneficial effects of this invention are as follows: By combining a dual-cavity independent air duct with a dual ultraviolet sterilization structure, the invention achieves full coverage sterilization of fresh air and internal circulation airflow, effectively solving the technical defects of existing equipment that lack professional sterilization functions and have insufficient indoor air cleanliness. At the same time, relying on the cross-cavity heat pipe waste heat recovery structure, the invention achieves efficient linkage utilization of cold and heat energy, significantly improving the heat recovery efficiency of the equipment and reducing operating energy consumption. Through the two-stage heating of electric heating and heat pump condenser combined with the air duct layout of pre-sterilization, the invention ensures stable and efficient humidification operation and avoids condensation and aging of the wet film. The modular pluggable sterilization structure facilitates later maintenance and replacement. The dual-cavity independent drainage structure effectively prevents equipment overflow failure. The multi-condition intelligent switching mode improves the equipment's adaptability to different indoor environments. While meeting the basic constant temperature dehumidification and humidification functions of the equipment, it also has the advantages of efficient sterilization and purification and energy-saving operation, which is in line with the development direction of the strategic emerging industry of energy conservation and environmental protection, and significantly improves the overall air treatment performance and safety of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the constant temperature dehumidification heat pump of the present invention; Figure 2 This is a schematic diagram of the constant temperature dehumidification heat pump of the present invention with the top cover removed; Figure 3 This is a schematic diagram of the constant temperature dehumidification heat pump of the present invention with the top cover and side plate removed. Figure 4 This is a schematic diagram showing the location and structure of the fourth and fifth air inlets of the constant temperature dehumidification heat pump of the present invention. Figure 5This is a schematic diagram showing the internal exploded structure of the internal circulation processing chamber of the constant temperature dehumidification heat pump of the present invention. Figure 6 This is an exploded structural diagram of the second filter assembly of the constant temperature dehumidification heat pump of the present invention. Figure 7 This is a schematic diagram of the main housing and airtight partition of the constant temperature dehumidification heat pump of the present invention. Figure 8 This is a schematic diagram of the structure of the first heat exchange component and the second heat exchange component of the present invention.

[0019] The reference numerals in the figures include: 1. Main casing; 2. Airtight partition; 3. Fresh air handling chamber; 4. Internal circulation handling chamber; 5. Sealed waterproof box; 6. Electric heating assembly; 31. First air outlet; 32. First filter assembly; 321. First insect screen; 322. Electric louvered damper; 33. First heat exchange assembly; 331. Evaporator; 332. First drip tray; 333. First water pump; 334. First float switch; 34. First fan; 35. Compressor; 36. Second air outlet; 37. Guide plate; 371. First plate; 372. Second plate; 373. Third plate; 374. Fourth plate; 41. Third air outlet; 42. Second filter assembly; 421. First frame; 422. Second insect screen; 423. 424. Primary filter layer; 43. High-efficiency filter layer; 44. Heat pipe assembly; 45. First ultraviolet sterilization assembly; 46. Pull-out bracket; 47. Photocatalytic filter; 48. Ultraviolet lamp; 49. Second heat exchange assembly; 40. Heat pump condenser; 41. Second water tray; 42. Second water pump; 43. Second float switch; 44. Wet film assembly; 45. Wet film humidification packing layer; 46. Water distribution pipe; 47. Solenoid valve; 48. Filter; 49. Check valve; 40. Second fan; 41. First partition; 42. Fourth air outlet; 53. Second partition; 54. Fifth air outlet; 65. Electrical control device; 66. First support plate; 67. Mounting frame; 68. Electric heater. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0021] Please see Figures 1 to 8As shown, the present invention discloses a constant temperature dehumidifying heat pump with ultraviolet photocatalytic disinfection and sterilization function. The constant temperature dehumidifying heat pump includes a main housing 1. An airtight partition 2 is fixedly installed inside the main housing 1, which divides the inner cavity of the main housing 1 into a fresh air treatment chamber 3 and an internal circulation treatment chamber 4, which are independent of each other and whose airflow does not cross. The side wall of the fresh air treatment chamber 3 is provided with a first air outlet 31 and a second air outlet 36, respectively. The condenser of the first filter assembly 32, the first heat exchange assembly 33, and the heat pipe assembly 43 are arranged sequentially along the airflow direction in the chamber. The heat exchange section, the first fan 34, and the compressor 35 are fixedly installed in the corner area of ​​the fresh air treatment chamber 3. The compressor 35 is connected to the first heat exchange component 33 through the refrigerant pipeline to form a complete refrigeration cycle. The heat pipe component 43 is a cross-cavity structure. The heat pipe component 43 consists of two sets of heat pipes and a set of intermediate pipelines. The intermediate pipeline passes through the airtight partition 2 to connect the fresh air treatment chamber 3 and the inner circulation treatment chamber 4. One part of the heat pipe component 43 is arranged in the fresh air treatment chamber 3 to form a condensation heat exchange section, and the other part is arranged in the inner circulation treatment chamber 4 to form an evaporation heat exchange section.

[0022] The inner circulation processing chamber 4 has a third air vent 41 on its side wall and a fifth air vent 50 on its bottom side wall. The second filter assembly 42, the evaporation heat exchange section of the heat pipe assembly 43, the first ultraviolet sterilization assembly 44, the second heat exchange assembly 45, and the wet film assembly 46 are arranged sequentially along the airflow direction in the chamber. The inner circulation processing chamber 4 also has a first partition 48 and a second partition 49 fixed inside. The first partition 48 has a fourth air vent 481 in the middle of its body. The second fan 47 is fixedly installed in the independent fan cavity formed by the first partition 48 and the second partition 49. The fifth air vent 50 is connected to the fan cavity. The airflow pressurized by the second fan 47 is sent back to the room through the fifth air vent 50.

[0023] A sealed waterproof box 5 is fixedly installed on the side of the second partition 49 away from the second fan 47. The electrical control device 51 is sealed inside the sealed waterproof box 5. The electrical control device 51 is electrically connected to the compressor 35, the first heat exchange component 33, the first fan 34, the second fan 47, the first ultraviolet sterilization component 44, the second heat exchange component 45, and the wet film component 46 through electrical cables to realize centralized control of the whole machine's operating logic.

[0024] Compared to the existing single-chamber mixed air treatment structure, this solution adopts an airtight partition 2 to physically isolate the dual air ducts, ensuring that the fresh air and the internal circulation airflow are not mixed throughout the process. This not only ensures the cleanliness of the fresh air, but also avoids the humidification moisture from entering the fresh air chamber and causing condensation failure, resulting in stronger equipment operation stability.

[0025] Specifically, in this embodiment, combined with Figure 5As shown, the first ultraviolet sterilization component 44 includes a pull-out bracket 441, a photocatalytic filter 442, and an ultraviolet lamp 443. The photocatalytic filter 442 is detachably clipped into the frame of the pull-out bracket 441, and the ultraviolet lamp 443 is fixedly installed on the pull-out bracket 441 with the light-emitting surface of the lamp facing the windward side of the photocatalytic filter 442. Guide slide rails are correspondingly provided on the two side walls of the inner circulation treatment chamber 4, and the two side edges of the pull-out bracket 441 are embedded in the guide slide rails, which can be inserted and pulled out as a whole from the maintenance port on the side of the equipment along the slide rail direction.

[0026] Compared to the fixed sterilization structure in existing technologies, this solution adopts a pull-out modular design, which allows the sterilization components to be removed for lamp replacement and filter cleaning without disassembling the entire air duct. This makes subsequent maintenance operations convenient and reduces maintenance costs.

[0027] Preferably, this embodiment also includes a second ultraviolet sterilization component. The overall structure of the second ultraviolet sterilization component is exactly the same as that of the first ultraviolet sterilization component 44. It is fixedly installed inside the fresh air treatment chamber 3 and located on the fresh air duct between the first heat exchange component 33 and the first fan 34. After the outdoor fresh air is cooled and dehumidified by the first heat exchange component 33, it flows through the second ultraviolet sterilization component to complete the sterilization treatment, and then is sent into the room through the first fan 34.

[0028] Compared to equipment with only a single sterilization path, this solution is equipped with ultraviolet photocatalytic sterilization structures in both the fresh air and internal circulation ducts, achieving full coverage and independent sterilization of the two airflows. This not only removes microorganisms carried by the outdoor fresh air but also continuously kills bacteria and viruses that breed in the indoor circulation, resulting in a more significant improvement in air cleanliness.

[0029] Specifically, in this embodiment, combined with Figure 4 As shown, a guide plate 37 is fixedly installed inside the fresh air treatment chamber 3. The guide plate 37 is formed by a first plate 371, a second plate 372, a third plate 373, and a fourth plate 374 connected in sequence to form an overall U-shaped air guiding channel. Along the airflow direction, the front section of the air guiding channel is a gradually narrowing section, and the rear section is a gradually expanding section. The first fan 34 is installed at the position of the gradually narrowing section, and the second air outlet 36 is opened near the end of the gradually expanding section. The first air outlet 31 is connected to the outdoor air, and the second air outlet 36 is connected to the indoor space through the air supply duct. This solution adopts a U-shaped gradually narrowing and expanding air guiding structure, which can optimize the flow field distribution of the fresh airflow, reduce the fan inlet vortex and operating noise, and at the same time improve the uniformity of the air supply pressure and reduce the local resistance loss of the air duct.

[0030] Specifically, in this embodiment, combined with Figure 8As shown, the first heat exchange component 33 includes an evaporator 331, a first water receiving tray 332, a first water pump 333, and a first float switch 334. The evaporator 331 is vertically fixed inside the air duct of the fresh air treatment chamber 3. The first water receiving tray 332 is fixedly installed directly below the evaporator 331 to collect the condensate dripping from the surface of the evaporator 331. The first water pump 333 is installed at a low position inside the first water receiving tray 332. The first float switch 334 is fixed on the side wall of the first water receiving tray 332 and is electrically linked with the first water pump 333. When the water level reaches a set threshold, the first water pump 333 is triggered to start draining.

[0031] The first water receiving tray 332, the first water pump 333, and the first float switch 334 together constitute an independent drainage and overflow protection unit for the fresh air handling chamber 3, preventing water in the water receiving tray from overflowing and entering the air duct. Compared with the structure of sharing a water receiving tray, this solution has an independent drainage unit for the fresh air chamber, which is completely isolated from the water in the internal circulation chamber, avoiding cross-contamination between different water qualities. Moreover, a drainage failure in one chamber will not affect another chamber, resulting in stronger fault isolation.

[0032] Specifically, in this embodiment, combined with Figure 8 As shown, the second heat exchange assembly 45 includes a heat pump condenser 451, a second water receiving tray 452, a second water pump 453, and a second float switch 454. The heat pump condenser 451 is vertically fixed in the air duct of the inner circulation processing chamber 4, serving as the heat release end of the heat pump circulation to heat the inner circulation airflow. The second water receiving tray 452 is fixedly installed directly below the heat pump condenser 451. The second water pump 453 is installed inside the second water receiving tray 452. The second float switch 454 is fixed to the side wall of the second water receiving tray 452 and electrically linked with the second water pump 453. The second water receiving tray 452, the second water pump 453, and the second float switch 454 together constitute an independent drainage and overflow protection unit for the inner circulation processing chamber 4.

[0033] Specifically, in this embodiment, combined with Figure 5 As shown, the wet membrane assembly 46 includes a wet membrane humidifying packing layer 461, a water distribution pipe 462, a solenoid valve 463, a filter 464, and a check valve 465. The wet membrane humidifying packing layer 461 is vertically fixed in the air duct of the inner circulation treatment chamber 4. The water distribution pipe 462 is horizontally installed on top of the wet membrane humidifying packing layer 461, and multiple drainage holes are evenly distributed on the downward-facing pipe wall of the water distribution pipe 462. The filter 464, the solenoid valve 463, and the check valve 465 are connected in series on the external water supply inlet pipe, and the end of the pipe is connected to the water distribution pipe 462. The external water source passes through the filter 464 to filter impurities, the solenoid valve 463 to control the on / off state, and the check valve 465 to prevent backflow before entering the water distribution pipe 462. The water is evenly sprayed onto the top of the wet membrane humidifying packing layer 461 through the drainage holes. The water flows downward along the surface of the packing and wets the packing. When the air passes through the packing layer, it carries away the water vapor to achieve humidification.

[0034] Compared to direct spray humidification structures, this solution adopts a multi-stage water circuit design of filtration-control valve-check valve-water distribution, which not only avoids impurities clogging the water distribution holes, but also prevents water backflow and pollution of the water supply network after shutdown, making the humidification process stable and controllable.

[0035] Specifically, in this embodiment, combined with Figure 6 As shown, the second filter assembly 42 includes a first frame 421, a second insect-proof net 422, a primary filter layer 423, and a high-efficiency filter layer 424. The second insect-proof net 422, the primary filter layer 423, and the high-efficiency filter layer 424 are sequentially embedded inside the first frame 421 along the airflow direction. The second insect-proof net 422 is made of metal. The first frame 421 is detachably mounted in the return air duct of the inner circulation processing chamber 4 through a slot structure. The windward side of the second insect-proof net 422 faces the third air outlet 41, and the air outlet side of the high-efficiency filter layer 424 faces the air inlet surface of the first ultraviolet sterilization assembly 44.

[0036] This solution employs a three-stage progressive filtration system, progressively intercepting particles and debris of different sizes. This not only improves the air filtration accuracy but also protects the downstream UV sterilization components and wet membrane parts, extending the service life of core components.

[0037] Specifically, in this embodiment, combined with Figure 5 As shown, the constant temperature dehumidification heat pump also includes an electric heating component 6, which is fixedly installed on the air duct section between the first ultraviolet sterilization component 44 and the second heat exchange component 45. The electric heating component 6 includes a first support plate 61, a mounting frame 62, and an electric heater 63. The first support plate 61 is fixedly clamped to the two side walls of the air duct, the mounting frame 62 is fixedly connected to the first support plate 61, and the electric heater 63 is embedded and fixed inside the mounting frame 62. The electric heating component 6 is used to supplement the internal circulation airflow with heat, and together with the downstream second heat exchange component 45, it raises the temperature of the airflow before humidification to ensure the inlet temperature requirements of wet film humidification.

[0038] Specifically, in this embodiment, the electronic control device 51 is configured to automatically switch between various operating conditions of the adjustable dehumidifying heat pump. The operating conditions include at least fresh air dehumidification, internal circulation purification and sterilization, constant temperature humidification, and heat pipe heat recovery energy saving. In the fresh air dehumidification mode, the compressor 35, the first heat exchange component 33 and the first fan 34 start to run. Outdoor fresh air enters the fresh air treatment chamber 3 from the first air outlet 31, and passes through the first filter component 32 for filtration, the first heat exchange component 33 for cooling and dehumidification, and the heat pipe component 43 for reheating and heating in the condensing heat exchange section before being sent into the room through the second air outlet 36. In the internal circulation purification and sterilization mode, the second fan 47 and the first ultraviolet sterilization component 44 start to run. The indoor return air enters the internal circulation treatment chamber 4 from the third air outlet 41, and is filtered by the second filter component 42 and photocatalytically sterilized by the first ultraviolet sterilization component 44 in sequence, and then sent back to the room through the fifth air outlet 50. Under constant temperature and humidification conditions, the second fan 47, electric heating component 6, second heat exchange component 45 and wet film component 46 start to operate. After the indoor return air is heated by the electric heating component 6 and the second heat exchange component 45, it enters the wet film component 46 to complete isenthalpic humidification, and finally is sent back to the room through the fifth air outlet 50 to achieve constant temperature and humidity regulation in the room. Under the heat pipe heat recovery energy-saving operation, the first fan 34 and the second fan 47 operate synchronously. The heat pipe assembly 43 recovers the waste heat of the internal circulating airflow across the airtight partition 2 and transfers the heat to the fresh air side to preheat or reheat the airflow, thereby reducing the operating energy consumption of the electric heating and cooling system.

[0039] Compared to equipment operating in a single mode, this solution features a multi-mode intelligent switching system that can match the optimal operating strategy according to different seasons and indoor environmental requirements, balancing air treatment performance and energy efficiency, and offering stronger adaptability to various scenarios.

[0040] Preferably, in this embodiment, the first filter assembly 32 includes a first insect-proof net 321 and an electric louvered damper 322. The first insect-proof net 321 is embedded in the first air inlet 31 of the fresh air treatment chamber 3 on the side wall of the main housing 1. The electric louvered damper 322 is fixedly installed inside the fresh air treatment chamber 3 and is located on the air inlet duct between the first insect-proof net 321 and the first heat exchange assembly 33. The electric louvered damper 322 is electrically connected to the electronic control device 51 and is used to control the opening and closing of the fresh air passage and adjust the opening size. Compared with a fixed fresh air inlet, this solution uses an electric louvered damper 322 to achieve controllable adjustment of the fresh air passage. It can completely close the fresh air to achieve pure internal circulation operation, or adjust the opening to control the amount of fresh air introduced, making the equipment operation mode more flexible.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A constant-temperature dehumidification heat pump with ultraviolet photocatalytic disinfection and sterilization function, characterized in that: The system includes a main housing (1) and an airtight partition (2) disposed within the main housing (1). The airtight partition (2) divides the inner cavity of the housing into an independent fresh air treatment chamber (3) and an internal circulation treatment chamber (4). The fresh air treatment chamber (3) is provided with a first air outlet (31), a first filter assembly (32), a first heat exchange assembly (33), a first fan (34), a compressor (35), and a second air outlet (36). The internal circulation treatment chamber (4) is provided with a third air outlet (41), a second filter assembly (42), and a heat pipe assembly (43) in sequence along the airflow direction. The internal circulation treatment chamber (4) is equipped with a first ultraviolet sterilization component (44), a second heat exchange component (45), a wet film component (46), and a second fan (47); the internal circulation treatment chamber (4) is also provided with a first partition (48) and a second partition (49), a fourth air outlet (481) is opened on the first partition (48), the second fan (47) is located between the first partition (48) and the second partition (49), and a fifth air outlet (50) is provided at the bottom of the internal circulation treatment chamber (4), and the gap between the fifth air outlet (50) and the first partition (48) and the second partition (49) is connected; It also includes a sealed waterproof box (5) disposed on the side of the second partition (49) away from the second fan (47) and an electrical control device (51) disposed inside the sealed waterproof box (5); the electrical control device (51) is electrically connected to the compressor (35), the first heat exchange assembly (33), the first fan (34), the second fan (47), the first ultraviolet sterilization assembly (44), the second heat exchange assembly (45), the wet film assembly (46) and the second fan (47); The heat pipe assembly (43) is a cross-cavity structure. The heat pipe assembly (43) consists of two sets of heat pipes and one set of intermediate pipes. The intermediate pipe passes through the airtight partition (2) and connects the fresh air treatment cavity (3) and the internal circulation treatment cavity (4). One part of the heat pipe assembly (43) is arranged in the fresh air treatment cavity (3) to form a condensation heat exchange section, and the other part is arranged in the internal circulation treatment cavity (4) to form an evaporation heat exchange section. It also includes an electric heating component (6), which is disposed between the first ultraviolet sterilization component (44) and the second heat exchange component (45); the electric heating component (6) includes a first support plate (61), a mounting frame (62) disposed on the first support plate (61) and an electric heater (63) disposed on the mounting frame (62); the electric heating component (6) is used to provide auxiliary heating for the internal circulating airflow and cooperate with the second heat exchange component (45) to heat the airflow that has not been humidified by the wet film. The electronic control device (51) is configured to control the dehumidification heat pump to switch between multiple operating conditions: the operating conditions include at least fresh air dehumidification, internal circulation purification and sterilization, constant temperature humidification, and heat pipe heat recovery energy saving. Under the fresh air dehumidification condition: the compressor (35), the first heat exchange component (33) and the first fan (34) are turned on. Outdoor fresh air enters the fresh air treatment chamber (3) through the first air outlet (31), and is filtered by the first filter component (32), cooled and dehumidified by the first heat exchange component (33), and reheated by the condensing heat exchange section of the heat pipe component (43) before being sent into the room through the second air outlet (36). Under the internal circulation purification and sterilization mode: the second fan (47) and the first ultraviolet sterilization component (44) are turned on, and the indoor return air enters the internal circulation treatment chamber (4) through the third air outlet (41), and is filtered by the second filter component (42) and photocatalytic sterilized by the first ultraviolet sterilization component (44) in sequence, and is sent back to the room through the fifth air outlet (50); Under constant temperature and humidity conditions: the second fan (47), electric heating component (6), second heat exchange component (45) and wet film component (46) are turned on. After the indoor return air is heated by the electric heating component (6) and the second heat exchange component (45) in two stages, it enters the wet film component (46) to complete isenthalpic humidification and is sent back to the room through the fifth air outlet (50) to achieve constant temperature and humidity regulation in the room. Under the heat pipe heat recovery energy-saving condition, the first fan (34) and the second fan (47) operate synchronously. The heat pipe assembly (43) crosses the airtight partition (2) to recover the residual heat of the internal circulation airflow and transfer the heat to the fresh air side to preheat or reheat the airflow, thereby reducing the operating energy consumption of the electric heating and cooling system.

2. The constant temperature dehumidifying heat pump with ultraviolet photocatalytic disinfection and sterilization function according to claim 1, characterized in that: The first ultraviolet sterilization component (44) includes a pull-out bracket (441), a photocatalytic filter (442) detachably mounted on the pull-out bracket (441), and an ultraviolet lamp (443), with the ultraviolet lamp (443) facing the photocatalytic filter (442); the inner circulation processing chamber (4) is provided with a guide rail part that aligns with the pull-out bracket (441), and the pull-out bracket (441) is pluggably installed in the inner circulation processing chamber (4) through the guide rail part.

3. The constant temperature dehumidifying heat pump with ultraviolet photocatalytic disinfection and sterilization function according to claim 2, characterized in that: It also includes a second ultraviolet sterilization component, which is set in the fresh air treatment chamber (3) and located between the first heat exchange component (33) and the first fan (34); the first ultraviolet sterilization component (44) has the same structure as the second ultraviolet sterilization component and is used to achieve independent sterilization of the internal circulation airflow and the fresh airflow, respectively.

4. The constant temperature dehumidifying heat pump with ultraviolet photocatalytic disinfection and sterilization function according to claim 1, characterized in that: The fresh air handling chamber (3) is provided with a baffle plate (37). The baffle plate (37) includes a first plate (371), a second plate (372), a third plate (373), and a fourth plate (374) connected in sequence in a "U" shape. The baffle plate (37) encloses and forms a guide channel. The guide channel has a narrowing section and a widening section along the airflow direction. The first fan (34) is installed at the narrowing section, and the second air outlet (36) is set near the end of the widening section. The first air outlet (31) is connected to the outdoor air, and the second air outlet (36) is connected to the indoor space through a pipe.

5. The constant temperature dehumidifying heat pump with ultraviolet photocatalytic disinfection and sterilization function according to claim 1, characterized in that: The first heat exchange component (33) includes an evaporator (331), a first water receiving tray (332) disposed below the evaporator (331), a first water pump (333) disposed in the first water receiving tray (332), and a first float switch (334) electrically connected to the first water pump (333). The first water receiving tray (332), the first water pump (333) and the first float switch (334) constitute an independent drainage and overflow protection unit for the fresh air treatment chamber (3) to prevent water from overflowing from the first water receiving tray (332).

6. The constant temperature dehumidifying heat pump with ultraviolet photocatalytic disinfection and sterilization function according to claim 1, characterized in that: The second heat exchange assembly (45) includes a heat pump condenser (451), a second water receiving tray (452) located below the heat pump condenser (451), a second water pump (453) located in the second water receiving tray (452), and a second float switch (454) electrically connected to the second water pump (453); the second water receiving tray (452), the second water pump (453) and the second float switch (454) constitute an independent drainage and overflow protection unit for the inner circulation treatment chamber (4).

7. The constant temperature dehumidifying heat pump with ultraviolet photocatalytic disinfection and sterilization function according to claim 1, characterized in that: The wet membrane assembly (46) includes an inlet pipe, a wet membrane humidification packing layer (461), a water distribution pipe (462) set on top of the wet membrane humidification packing layer (461), a solenoid valve (463) for controlling the flow of water, a filter (464) set at the inlet pipe, and a check valve (465) connected in series between the solenoid valve (463) and the water distribution pipe (462). The external water source enters the water distribution pipe (462) after passing through the inlet pipe, the filter (464), the solenoid valve (463), and the check valve (465) in sequence. The water distribution pipe (462) has multiple drainage holes evenly distributed on it, and the water falling from the drainage holes is evenly sprayed onto the wet membrane humidification packing.

8. The constant temperature dehumidifying heat pump with ultraviolet photocatalytic disinfection and sterilization function according to claim 1, characterized in that: The second filter assembly (42) includes a first frame (421), a second insect net (422), a primary filter layer (423), and a high-efficiency filter layer (424) arranged sequentially on the first frame (421) along the airflow direction; the second insect net (422) is a metal insect net, and the first frame (421) is detachably installed in the internal circulation processing chamber (4); the windward side of the second insect net (422) faces the third air outlet (41), and the air outlet side of the high-efficiency filter layer (424) faces the first ultraviolet sterilization assembly (44).

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