Adsorption type heat pump clothes dryer

Abstract

The invention relates to the field of clothes dryers, and particularly discloses an adsorption type heat pump clothes dryer, a drying box and a dehumidification system thereof, and the dehumidification system is composed of a moisture adsorption mechanism, a moisture removal mechanism and a heat pump device. A silica gel dehumidification wheel in the moisture adsorption mechanism continuously adsorbs and regenerates moisture through rotation, and meanwhile, the silica gel dehumidification wheel is matched with a main fan, a moisture absorption cover and a moisture exhaust fan to complete gas circulation and moisture exhaust. The heat pump device improves the energy efficiency ratio through the auxiliary evaporator, the main evaporator and the condenser, and effective utilization of heat is ensured. By means of the design, efficient and energy-saving clothes drying is achieved, the drying speed is remarkably increased, the drying effect is remarkably improved, and energy consumption is effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of clothes dryers, and in particular to an adsorption heat pump clothes dryer. Background Art

[0002] At present, clothes dryers are a common household appliance widely used for drying household clothes. With the improvement of people's living standards and the advancement of technology, clothes dryers need to have not only efficient drying capabilities, but also energy-saving and environmentally friendly features.

[0003] In the related technology, the common dryers on the market mainly include condensing type and heat pump type. Condensing dryers cool the hot and humid air through a condenser, condensing the water vapor into liquid water, and then discharging it out of the machine. Heat pump dryers use a heat pump system to circulate heating and cooling air, thereby achieving the purpose of high efficiency and energy saving.

[0004] Regarding the above-mentioned related technologies, there are the following defects: although the existing condensing and heat pump dryers can meet the basic needs of most users, in high humidity environments, especially during the rainy season or in coastal areas, the drying efficiency of these models is obviously insufficient. Summary of the invention

[0005] In order to improve drying efficiency, the present application provides an adsorption heat pump clothes dryer.

[0006] The adsorption heat pump clothes dryer provided in this application adopts the following technical solution: An adsorption heat pump clothes dryer, comprising a drying box and a dehumidification system, wherein a door is provided on the front of the drying box, and a rotatably connected inner drum is provided inside the drying box; the dehumidification system is installed on the back of the drying box; The dehumidification system includes a moisture adsorption mechanism, a moisture discharge mechanism and a heat pump device. The moisture adsorption mechanism includes a frame, a dehumidification support tube and a silica gel dehumidification wheel. The frame is installed on the back of the drying box, and the dehumidification support tube is installed on the frame; the air inlet of the dehumidification support tube is connected to the air outlet of the drying box, and the air outlet of the dehumidification support tube and the air inlet of the drying box are connected to a main fan; A moisture adsorption area and a drying area are respectively arranged on both sides of the axis in the dehumidification support tube; the silica gel dehumidification wheel is coaxially rotatably installed in the dehumidification support tube, a plurality of honeycomb holes are arranged on the surface of the silica gel dehumidification wheel, and a part of the sector of the silica gel dehumidification wheel is located in the moisture adsorption area, and another part of the sector is located in the drying area; The dehumidification mechanism includes a dehumidification cover and a dehumidification fan. The dehumidification cover is arranged between the silica gel dehumidification wheel and the air inlet of the dehumidification support tube, and covers the fan surface of the silica gel dehumidification wheel in the drying area; the dehumidification fan is arranged outside the dehumidification support tube, and is connected to the dehumidification cover with a dehumidification pipe; The heat pump device includes an auxiliary evaporator, a main evaporator and a condenser. The auxiliary evaporator is installed in the air inlet of the dehumidification support tube; the main evaporator is installed in the dehumidification pipe; the condenser is installed in the drying area and is located between the silica gel dehumidification wheel and the air outlet of the dehumidification support tube.

[0007] By adopting the above technical solution, the function of the main fan is to extract the humid air in the drying box and send it to the silica gel dehumidification wheel through the dehumidification support pipe for dehumidification treatment, and then send the dried air back to the drying box to form a cycle, so as to ensure that the clothes reach the ideal drying state in a short time. When the moisture adsorption mechanism is working, the silica gel dehumidification wheel rotates so that the fan surface of the silica gel dehumidification wheel can switch between the moisture adsorption area and the drying area. The silica gel dehumidification wheel in the moisture adsorption mechanism has a porous structure, which can effectively absorb water vapor from the humid air in the drying box in the moisture adsorption area, thereby reducing the internal humidity and accelerating the drying process. When the fan surface of the silica gel dehumidification wheel passes through the drying area after absorbing moisture, the moisture absorption cover and the moisture removal fan in the dehumidification mechanism work together to discharge the saturated moisture in the fan surface of the silica gel dehumidification wheel in the drying area to the outside of the system in time, ensuring that the fan surface of the silica gel dehumidification wheel is in a dry state when it re-enters the moisture adsorption area, thereby ensuring that the fan surface of the silica gel dehumidification wheel in the moisture adsorption area can maintain a high moisture absorption efficiency, avoid secondary pollution, and maintain the continuous effectiveness of the system. The auxiliary evaporator is installed in the air inlet of the dehumidification support tube, which helps to pre-cool the incoming humid gas, reduce its temperature, increase the humidity difference, and further improve the dehumidification effect. The main evaporator is installed in the dehumidification pipe, which can effectively utilize the heat generated during the dehumidification process and improve the energy efficiency of the system. The condenser is installed in the drying area, and by heating the dry and cold air flowing through it, it has enough heat to dry clothes, while recycling waste heat to save energy. In summary, the design of the adsorption heat pump dryer optimizes the functional coordination of various components, realizes efficient dehumidification and heating, and greatly improves the overall drying efficiency.

[0008] Preferably, the air inlet and the air outlet of the dehumidification support tube are respectively provided with a coaxial air inlet pipe and a coaxial air outlet pipe, and the ends of the air inlet pipe and the air outlet pipe away from the dehumidification support tube are both closed; The side wall of the air inlet pipe is connected to the air outlet of the drying box with an air inlet branch pipe, and the auxiliary evaporator is arranged in the air inlet branch pipe; the side wall of the air outlet pipe is connected to the air inlet of the main fan with an air outlet branch pipe; The silica gel dehumidification wheel is provided with a coaxial rotating shaft, the rotating shaft (241) is coaxially arranged in the air inlet pipe (22) and the air outlet pipe (23), and the outer diameter of the rotating shaft (241) is smaller than the inner diameter of the air inlet pipe (22) and the air outlet pipe (23), the first end of the rotating shaft (241) is rotatably connected to the closed end of the air inlet pipe (22), and the second end of the rotating shaft (241) and the closed end of the air outlet pipe (23) are connected to a motor (242).

[0009] By adopting the above technical solution, the closed ends of the air inlet pipe and the air outlet pipe are used to install the rotating shaft and the motor, so as to drive the rotation of the silica gel dehumidification wheel. The air inlet branch pipe ensures that the humid air can effectively enter the dehumidification system and facilitates the installation of the auxiliary evaporator. The air outlet branch pipe ensures that the dried air can be quickly sent back to the drying box.

[0010] Preferably, a filter screen is installed in the dehumidification support tube, and the filter screen is located between the air inlet pipe and the silica gel dehumidification wheel.

[0011] By adopting the above technical solution, the filter can effectively intercept dust and impurities in the air and prevent these particles from entering the silica gel dehumidification wheel, thereby protecting the adsorption performance of the silica gel dehumidification wheel and extending its service life. At the same time, clean air helps to improve the operating efficiency of the entire system and reduce the failure rate.

[0012] Preferably, the silica gel dehumidification wheel and the filter screen are both detachably connected to the dehumidification support tube; The silica gel dehumidification wheel, the air inlet pipe and the motor are all detachably connected to the rotating shaft; and an inspection door is provided on the side wall of the dehumidification support pipe.

[0013] By adopting the above technical solution, the silica gel dehumidification wheel and filter are detachably connected to the dehumidification support tube, which is convenient for regular replacement or cleaning, ensuring the long-term and efficient operation of the equipment. At the same time, the silica gel dehumidification wheel, air inlet pipe and motor are detachably connected to the shaft, which simplifies the maintenance process and reduces maintenance costs. The side wall of the dehumidification support tube is equipped with an inspection door to facilitate the inspection of internal components and improve the convenience of operation.

[0014] Preferably, a secondary evaporator containing box is provided in the middle of the air inlet branch pipe, and the secondary evaporator is installed in the secondary evaporator containing box.

[0015] By adopting the above technical solution, the auxiliary evaporator can pre-cool and dry the humid air from inside the drying box, and reduce its humidity before entering the silica gel dehumidification wheel, thereby reducing the workload of the silica gel dehumidification wheel, extending its service life and improving the energy efficiency ratio of the overall system.

[0016] Preferably, the dehumidification pipe is provided with a main evaporator containing box located outside the dehumidification support pipe, and the main evaporator is installed in the main evaporator containing box.

[0017] By adopting the above technical solution, after the dehumidification fan draws the hot and humid air in the dehumidification support tube into the main evaporator receiving box, the main evaporator can cool the hot and humid air so that the hot and humid air can be condensed into water and discharged.

[0018] Preferably, the dehumidification mechanism also includes a hot air duct arranged along the length direction of the dehumidification support tube, the hot air duct is installed in the drying area, and is located between the silica gel dehumidification wheel and the air outlet duct; the condenser is installed in the dehumidification support tube and is arranged opposite to the air inlet of the hot air duct.

[0019] By adopting the above technical solution, after the condenser heats the dried air, part of the hot air is transported to the drying box by the main fan, and the other part of the hot air is directed into the silica gel dehumidification wheel fan in the drying area through the hot air duct under the suction of the dehumidification fan. When the dry hot air passes through the moistened silica gel dehumidification wheel fan, it can take away the moisture inside the silica gel dehumidification wheel fan, thereby drying the silica gel dehumidification wheel fan. Among them, the condenser can more effectively utilize the heat of the dried air and improve energy utilization. At the same time, the setting of the hot air duct can ensure a more uniform temperature distribution in the drying area, improving the drying effect and efficiency of clothes.

[0020] Preferably, a heating element is installed in the hot air duct.

[0021] By adopting the above technical solution, the operation of the heat pump device will be affected by environmental factors such as temperature and humidity. When the heating temperature of the condenser is insufficient, the heating element plays an auxiliary heating role to ensure that there is air with a high enough temperature to dry the silica gel dehumidification wheel and clothes.

[0022] Preferably, in the length direction of the dehumidification support tube, the hot air pipe and the moisture absorption cover are both slidably connected to the dehumidification support tube.

[0023] By adopting the above technical solution, the hot air pipe and the moisture absorption cover can be flexibly adjusted on the dehumidification support pipe, which facilitates the replacement of silica gel dehumidification wheels of different sizes.

[0024] Preferably, a fresh air duct is provided on the side wall of the dehumidification support tube, and the fresh air duct is provided between the air inlet duct and the silica gel dehumidification wheel.

[0025] By adopting the above technical solution, the setting of the fresh air duct can introduce fresh air between the air inlet duct and the silica gel dehumidification wheel, improve the air quality in the drying box, and prevent the clothes from generating odor or bacterial growth due to long-term circulation of the same air during the drying process. At the same time, the introduction of the fresh air duct helps to balance the internal air pressure and ensure the stable operation of the entire system.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. In this application, by setting up a moisture adsorption mechanism and a moisture discharge mechanism, especially the structural design of the silica gel dehumidification wheel, the dehumidification efficiency is effectively improved, and the dehumidification performance can be maintained stably in a high humidity environment to ensure that the clothes can be thoroughly dried; 2. The auxiliary evaporator, main evaporator and condenser in the heat pump device of the present application are reasonably arranged, so that the heat energy utilization is more efficient, the energy consumption is reduced, and at the same time, the temperature in the drying box is uniformly distributed, thereby improving the drying effect; 3. The synergistic effect of the main fan and the dehumidification fan in this application speeds up the air circulation speed, shortens the drying time, and also improves the overall operating stability of the system and extends the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 is a front view schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a rear view schematic diagram of the overall structure of an embodiment of the present application; Figure 3 It is the overall structural diagram of the dehumidification system; Figure 4 It is a schematic diagram of the internal structure of the air inlet branch pipe and the internal structure of the moisture discharge pipe of the dehumidification system; Figure 5 It is a schematic diagram of the internal structure of the air inlet branch pipe, the internal structure of the moisture discharge pipe and the internal structure of the dehumidification support pipe of the dehumidification system.

[0029] Reference numerals: 1. Drying box; 11. Box door; 12. Inner drum; 10. Dehumidification system; 2. Moisture adsorption mechanism; 20. Frame; 21. Dehumidification support pipe; 211. Inspection door; 22. Air inlet pipe; 221. Air inlet branch pipe; 2210. Auxiliary evaporator storage box; 23. Air outlet pipe; 231. Air outlet branch pipe; 24. Silica gel dehumidification wheel; 2401. Honeycomb hole; 241. Rotating shaft; 242. Motor; 25. Filter; 26. Main fan; 3. Dehumidification mechanism; 31. Hot air pipe; 32. Heating element; 33. Dehumidification cover; 34. Dehumidification pipe; 340. Main evaporator storage box; 35. Dehumidification fan; 4. Heat pump device; 41. Heat pump host; 42. Auxiliary evaporator; 43. Main evaporator; 44. Condenser; 5. Fresh air duct. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] The embodiment of the present application discloses an adsorption heat pump clothes dryer.

[0032] Reference Figure 1 and Figure 2 An adsorption heat pump clothes dryer includes a drying box 1 and a dehumidification system 10. The front of the drying box 1 is provided with a box door 11, and the drying box 1 is provided with a rotatably connected inner drum 12. The dehumidification system 10 is installed on the back of the drying box 1.

[0033] Reference Figure 3 , Figure 4 and Figure 5The dehumidification system 10 includes a moisture adsorption mechanism 2, a dehumidification mechanism 3 and a heat pump device 4. The moisture adsorption mechanism 2 includes a frame 20, a dehumidification support tube 21, and a silica gel dehumidification wheel 24. The frame 20 is installed on the back of the drying box 1, and the dehumidification support tube 21 is installed on the frame 20. The air inlet of the dehumidification support tube 21 is connected to the air outlet of the drying box 1, and the air outlet of the dehumidification support tube 21 and the air inlet of the drying box 1 are connected to a main fan 26. The two sides of the axis in the dehumidification support tube 21 are respectively provided with a moisture adsorption area and a drying area. The silica gel dehumidification wheel 24 is coaxially rotatably installed in the dehumidification support tube 21. The surface of the silica gel dehumidification wheel 24 is provided with a plurality of honeycomb holes 2401, and a part of the fan surface of the silica gel dehumidification wheel 24 is located in the moisture adsorption area, and the other part of the fan surface is located in the drying area. The dehumidification mechanism 3 includes a dehumidification hood 33 and a dehumidification fan 35. The dehumidification hood 33 is arranged between the silica gel dehumidification wheel 24 and the air inlet of the dehumidification support tube 21, and covers the fan surface of the silica gel dehumidification wheel 24 in the drying area. The dehumidification fan 35 is arranged outside the dehumidification support tube 21, and is connected to the dehumidification hood 33 by the dehumidification pipe 34. The heat pump device 4 includes a heat pump host 41, an auxiliary evaporator 42, a main evaporator 43, an expansion valve and a condenser 44. The heat pump host 41 is arranged outside the dehumidification support tube 21 and is connected to the frame 20. The auxiliary evaporator 42 is installed in the air inlet of the dehumidification support tube 21. The main evaporator 43 is installed in the dehumidification pipe 34. The condenser 44 is installed in the drying area and is located between the silica gel dehumidification wheel 24 and the air outlet of the dehumidification support tube 21. The heat pump device 4 here is the existing technology. The compressor, auxiliary evaporator 42, expansion valve and condenser 44 of the heat pump main unit 41 are connected end to end to form a circulation structure. The compressor, main evaporator 43, expansion valve and condenser 44 of the heat pump main unit 41 are connected end to end to form a circulation structure.

[0034] Reference Figure 3 , Figure 4 and Figure 5In the embodiment of the present application, the function of the main fan 26 is to extract the humid air in the drying box 1 and send it to the silica gel dehumidification wheel 24 through the dehumidification support pipe 21 for dehumidification treatment, and then send the dried air back to the drying box 1 to form a cycle, so as to ensure that the clothes reach the ideal dry state in a short time. When the moisture adsorption mechanism 2 is working, the silica gel dehumidification wheel 24 rotates so that the fan surface of the silica gel dehumidification wheel 24 can switch between the moisture adsorption area and the drying area. The silica gel dehumidification wheel 24 in the moisture adsorption mechanism 2 has a porous structure, which can effectively absorb water vapor from the humid air in the drying box 1 in the moisture adsorption area, thereby reducing the internal humidity and accelerating the drying process. When the fan surface of the silica gel dehumidification wheel 24 passes through the drying area after absorbing moisture, the moisture absorption cover 33 and the moisture removal fan 35 in the dehumidification mechanism 3 work together to discharge the saturated moisture in the fan surface of the silica gel dehumidification wheel 24 in the drying area to the outside of the system in time, ensuring that the fan surface of the silica gel dehumidification wheel 24 is in a dry state when it re-enters the moisture adsorption area, thereby ensuring that the fan surface of the silica gel dehumidification wheel 24 in the moisture adsorption area can maintain a high moisture absorption efficiency, avoid secondary pollution, and maintain the continuous effectiveness of the system. The auxiliary evaporator 42 is installed in the air inlet of the dehumidification support pipe 21, which helps to pre-cool the incoming humid gas, reduce its temperature, increase the humidity difference, and further improve the dehumidification effect. The main evaporator 43 is installed in the dehumidification pipe 34, which can effectively utilize the heat generated during the dehumidification process and improve the energy efficiency ratio of the system. The condenser 44 is installed in the drying area, and by heating the dry and cold air flowing through, it has enough heat to dry clothes, while recycling waste heat and saving energy. In summary, the design of the adsorption heat pump dryer optimizes the functional coordination of each component, achieves efficient dehumidification and heating, and greatly improves the overall drying efficiency.

[0035] Reference Figure 3 , Figure 4 and Figure 5The air inlet and air outlet of the dehumidification support tube 21 are respectively provided with a coaxial air inlet pipe 22 and a coaxial air outlet pipe 23, and the ends of the air inlet pipe 22 and the air outlet pipe 23 away from the dehumidification support tube 21 are both closed. The side wall of the air inlet pipe 22 is connected to the air outlet of the drying box 1 with an air inlet branch pipe 221, and the auxiliary evaporator 42 is arranged in the air inlet branch pipe 221. The side wall of the air outlet pipe 23 is connected to the air inlet of the main fan 26 with an air outlet branch pipe 231. The silica gel dehumidification wheel 24 is provided with a coaxial rotating shaft 241, which is coaxially arranged in the air inlet pipe 22 and the air outlet pipe 23, and the outer diameter of the rotating shaft 241 is smaller than the inner diameter of the air inlet pipe 22 and the air outlet pipe 23. The first end of the rotating shaft 241 is rotatably connected to the closed end of the air inlet pipe 22, and the second end of the rotating shaft 241 is connected to the closed end of the air outlet pipe 23 with a motor 242. In the embodiment of the present application, the closed end of the air inlet pipe 22 and the closed end of the air outlet pipe 23 are used to install the rotating shaft 241 and the motor 242, so as to drive the rotation of the silica gel dehumidification wheel 24. The air inlet branch pipe 221 ensures that the humid air can effectively enter the dehumidification system 10 and facilitates the installation of the auxiliary evaporator 42. The air outlet branch pipe 231 ensures that the dried air can be quickly sent back to the drying box 1.

[0036] Reference Figure 3 , Figure 4 and Figure 5 A filter 25 is installed in the dehumidification support tube 21, and the filter 25 is located between the air inlet pipe 22 and the silica gel dehumidification wheel 24. In the embodiment of the present application, the filter 25 can effectively intercept dust and impurities in the air and prevent these particles from entering the silica gel dehumidification wheel 24, thereby protecting the adsorption performance of the silica gel dehumidification wheel 24 and extending its service life. At the same time, clean air helps to improve the operating efficiency of the entire system and reduce the failure rate.

[0037] Reference Figure 3 , Figure 4 and Figure 5 , the silica gel dehumidification wheel 24 and the filter screen 25 are all detachably connected to the dehumidification support tube 21. The silica gel dehumidification wheel 24, the air inlet pipe 22, and the motor 242 are all detachably connected to the rotating shaft 241. The side wall of the dehumidification support tube 21 is provided with an inspection door 211. In the embodiment of the present application, the silica gel dehumidification wheel 24 and the filter screen 25 are all detachably connected to the dehumidification support tube 21, which is convenient for regular replacement or cleaning to ensure long-term and efficient operation of the equipment. At the same time, the silica gel dehumidification wheel 24, the air inlet pipe 22 and the motor 242 are all detachably connected to the rotating shaft 241, which simplifies the maintenance process and reduces maintenance costs. The side wall of the dehumidification support tube 21 is provided with an inspection door 211, which is convenient for inspecting internal components and improving operational convenience.

[0038] Reference Figure 3 , Figure 4 and Figure 5A secondary evaporator containing box 2210 is provided in the middle of the air inlet branch pipe 221, and the secondary evaporator 42 is installed in the secondary evaporator containing box 2210. In the embodiment of the present application, the secondary evaporator 42 can pre-cool and dry the humid air from the inside of the drying box 1, and reduce its humidity before entering the silica gel dehumidification wheel 24, thereby reducing the workload of the silica gel dehumidification wheel 24, extending its service life and improving the energy efficiency ratio of the overall system.

[0039] Reference Figure 3 , Figure 4 and Figure 5 The dehumidification pipe 34 is provided with a main evaporator containing box 340 located outside the dehumidification support pipe 21, and the main evaporator 43 is installed in the main evaporator containing box 340. In the embodiment of the present application, after the dehumidification fan 35 draws the hot and humid air in the dehumidification support pipe 21 into the main evaporator containing box 340, the main evaporator 43 can cool the hot and humid air so that the hot and humid air can be condensed into water and discharged.

[0040] Reference Figure 3 , Figure 4 and Figure 5 The dehumidification mechanism 3 also includes a hot air pipe 31 arranged along the length direction of the dehumidification support pipe 21. The hot air pipe 31 is installed in the drying area and is located between the silica gel dehumidification wheel 24 and the air outlet pipe 23. The condenser 44 is in the dehumidification support pipe 21 and is arranged opposite to the air inlet of the hot air pipe 31. In the embodiment of the present application, after the condenser 44 heats the dried air, a part of the hot air is transported to the drying box 1 by the main fan 26, and the other part of the hot air is directed into the fan surface of the silica gel dehumidification wheel 24 in the drying area through the hot air pipe 31 under the suction of the dehumidification fan 35. When the dry hot air passes through the moistened fan surface of the silica gel dehumidification wheel 24, it can take away the moisture inside the fan surface of the silica gel dehumidification wheel 24, thereby drying the fan surface of the silica gel dehumidification wheel 24. Among them, the condenser 44 can more effectively utilize the heat of the dried air and improve the energy utilization rate. At the same time, the setting of the hot air pipe 31 can ensure that the temperature distribution in the drying area is more uniform, and improve the drying effect and efficiency of clothes.

[0041] Reference Figure 3 , Figure 4 and Figure 5 A heating element 32 is installed in the hot air pipe 31. In the embodiment of the present application, the operation of the heat pump device 4 is affected by environmental factors such as temperature and humidity. When the heating temperature of the condenser 44 is insufficient, the heating element 32 plays an auxiliary heating role to ensure that the air has a high enough temperature to dry the silica gel dehumidification wheel 24 and the clothes.

[0042] Reference Figure 3 , Figure 4 and Figure 5In the length direction of the dehumidification support tube 21, the hot air pipe 31 and the moisture absorption cover 33 are both slidably connected to the dehumidification support tube 21. In the embodiment of the present application, the hot air pipe 31 and the moisture absorption cover 33 are flexibly adjusted on the dehumidification support tube 21, which facilitates the replacement of silica gel dehumidification wheels 24 of different sizes.

[0043] Reference Figure 3 , Figure 4 and Figure 5 The side wall of the dehumidification support tube 21 is provided with a fresh air duct 5, which is arranged between the air inlet duct 22 and the silica gel dehumidification wheel 24. In the embodiment of the present application, the arrangement of the fresh air duct 5 can introduce fresh air between the air inlet duct 22 and the silica gel dehumidification wheel 24, improve the air quality in the drying box 1, and prevent the clothes from generating odor or bacterial growth due to the long-term circulation of the same air during the drying process. At the same time, the introduction of the fresh air duct 5 helps to balance the internal air pressure and ensure the stable operation of the entire system.

[0044] The implementation principle of an adsorption heat pump clothes dryer in the embodiment of the present application is: The cabinet door 11 is opened, wet clothes are placed in the inner drum 12, and then the cabinet door 11 is closed, and the inner drum 12 rotates to dry the clothes. The inner drum 12 and its related driving structure are all prior art.

[0045] The dehumidification system 10 is started during the operation of the inner drum 12. The dehumidification principle of the dehumidification system 10 is as follows: The moisture adsorption mechanism is operated and the main fan 26 is started. The moisture in the drying box 1 is successively drawn away by the main fan 26 through the air inlet branch pipe 221, the auxiliary evaporator containing box 2210, the air inlet pipe 22, the dehumidification support pipe 21, the air outlet pipe 23, and the air outlet branch pipe 231. The components inside the dehumidification support pipe 21 remove moisture from the moisture, so that the airflow entering the main fan 26 is in a dry state. The main fan 26 sends the dry airflow into the drying box 1, so that the dry airflow dries the wet clothes in the drying box 1, thereby forming a circulating drying air duct.

[0046] The filter 25 filters the airflow, and the silica gel dehumidification wheel 24 inside the dehumidification support tube 21 is used to absorb moisture in the humid air. Here, when the moisture passes through the honeycomb holes 2401 of the silica gel dehumidification wheel 24, the moisture is absorbed by the silica gel dehumidification wheel 24, and the separated dry airflow flows to the main fan 26 through the honeycomb holes 2401.

[0047] The heat pump device 4 needs to cooperate with the moisture adsorption mechanism 2 and the dehumidification mechanism 3 during operation. The heat pump device 4 mainly assists the moisture adsorption mechanism 2 and the dehumidification mechanism 3 to operate better, starts the heat pump main unit 41, the auxiliary evaporator 42 absorbs heat, the main evaporator 43 absorbs heat, and the condenser 44 dissipates heat.

[0048] The auxiliary evaporator 42 precools the moisture flowing through the auxiliary evaporator housing box 2210 , and the water vapor in the moisture condenses into liquid and is more easily absorbed by the silica gel dehumidification wheel 24 , thereby improving the dehumidification effect of the silica gel dehumidification wheel 24 .

[0049] During the operation of the dehumidification mechanism 3, the area between the hot air pipe 31 and the moisture absorption cover 33 is the drying area, and the area outside the hot air pipe 31 and the moisture absorption cover 33 is the dehumidification area. The half of the fan surface of the silica gel dehumidification wheel 24 sandwiched by the hot air pipe 31 and the moisture absorption cover 33 is set as the fan surface of the drying area, and the other half of the fan surface of the silica gel dehumidification wheel 24 is set as the fan surface of the dehumidification area. In this case, the fan surface of the drying area and the fan surface of the dehumidification area are both dynamic parts. During the dehumidification process of the silica gel dehumidification wheel 24, the motor 242 drives the rotating shaft 241 to rotate, so that the fan surface of the silica gel dehumidification wheel 24 continuously switches between the fan surface of the drying area and the fan surface of the dehumidification area. During the dehumidification process of the silica gel dehumidification wheel 24, it is actually the fan surface of the dehumidification area that performs dehumidification. After the fan surface of the dehumidification area absorbs moisture, the fan surface of the dehumidification area enters the drying area between the hot air pipe 31 and the moisture absorption cover 33 and becomes the fan surface of the drying area. After the fan surface of the drying area is dried, it rotates to the dehumidification area and becomes the fan surface of the dehumidification area, and continues to dehumidify. This enables the silica gel dehumidification wheel 24 to continuously and effectively absorb moisture in the humidity.

[0050] When dehumidifying the fan surface of the drying area, the dehumidification fan 35 is started to absorb part of the dry airflow between the silica gel dehumidification wheel 24 and the main fan 26. The part of the dry airflow is discharged through the hot air duct 31, the drying area fan surface of the silica gel dehumidification wheel 24, the moisture absorption hood 33, the dehumidification pipe 34, the main evaporator containing box 340, and the dehumidification fan 35 in sequence.

[0051] Among them, the heating element 32 starts to generate heat, and the condenser 44 dissipates heat, which can heat the airflow flowing through the hot air pipe 31, and can heat the dry airflow between the silica gel dehumidification wheel 24 and the main fan 26. A part of the heated dry airflow passes through the drying area fan surface of the silica gel dehumidification wheel 24 under the suction of the dehumidification fan 35, and takes away the moisture on the drying area fan surface of the silica gel dehumidification wheel 24, so as to achieve the purpose of drying the drying area fan surface of the silica gel dehumidification wheel 24. Another part of the heated dry airflow is sent into the drying box 1 under the suction of the main fan 26 to dry the wet clothes. The waste heat of the condenser 44 is recycled to save energy. The functional coordination of each component is optimized, and efficient dehumidification and heating are achieved, which greatly improves the overall drying efficiency.

[0052] Among them, the main evaporator 43 absorbs heat, cools down the high-humidity and high-temperature air flow flowing through the main evaporator container box 340, condenses the moisture in the high-humidity and high-temperature air flow, and prevents water vapor from spreading around the outlet of the dehumidification fan 35 and interfering with the vision of the working area.

[0053] Among them, under the dual suction of the main fan 26 and the dehumidification fan 35, the air pressure inside the drying box 1 is sometimes unstable. The introduction of the fresh air duct 5 helps to balance the internal air pressure, ensure the stable operation of the entire system, avoid vacuuming and other phenomena, and ensure that there is always enough dry airflow entering the drying box 1 to dry the wet clothes.

[0054] Among them, the filter screen 25 and the silica gel dehumidification wheel 24 are used for filtering and dehumidification respectively. During long-term operation, the filter screen 25 and the silica gel dehumidification wheel 24 need to be cleaned and maintained. At this time, the inspection door 211 can be opened to maintain the filter screen 25, the silica gel dehumidification wheel 24 and other components located inside the dehumidification support tube 21.

[0055] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0056] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adsorption heat pump clothes dryer, characterized in that: The invention comprises a drying box (1) and a dehumidification system (10), wherein the front of the drying box (1) is provided with a box door (11), and the drying box (1) is provided with a rotatably connected inner cylinder (12); the dehumidification system (10) is installed on the back of the drying box (1); The dehumidification system (10) comprises a moisture adsorption mechanism (2), a moisture discharge mechanism (3) and a heat pump device (4); the moisture adsorption mechanism (2) comprises a frame (20), a dehumidification support tube (21) and a silica gel dehumidification wheel (24); the frame (20) is mounted on the back of the drying box (1); the dehumidification support tube (21) is mounted on the frame (20); the air inlet of the dehumidification support tube (21) is connected to the air outlet of the drying box (1); the air outlet of the dehumidification support tube (21) and the air inlet of the drying box (1) are connected to a main fan (26); A moisture adsorption area and a drying area are respectively provided on both sides of the axis of the dehumidification support tube (21); the silica gel dehumidification wheel (24) is coaxially rotatably installed in the dehumidification support tube (21); a surface of the silica gel dehumidification wheel (24) is provided with a plurality of honeycomb holes (2401); a part of the sector of the silica gel dehumidification wheel (24) is located in the moisture adsorption area, and another part of the sector is located in the drying area; The dehumidification mechanism (3) comprises a dehumidification cover (33) and a dehumidification fan (35); the dehumidification cover (33) is arranged between the silica gel dehumidification wheel (24) and the air inlet of the dehumidification support tube (21), and covers the fan surface of the silica gel dehumidification wheel (24) in the drying area; the dehumidification fan (35) is arranged outside the dehumidification support tube (21), and is connected to the dehumidification cover (33) through a dehumidification tube (34); The heat pump device (4) comprises an auxiliary evaporator (42), a main evaporator (43) and a condenser (44); the auxiliary evaporator (42) is installed in the air inlet of the dehumidification support tube (21); the main evaporator (43) is installed in the dehumidification tube (34); and the condenser (44) is installed in the drying area and is located between the silica gel dehumidification wheel (24) and the air outlet of the dehumidification support tube (21).

2. The adsorption heat pump clothes dryer according to claim 1, characterized in that: The air inlet and the air outlet of the dehumidification support tube (21) are respectively provided with a coaxial air inlet pipe (22) and a coaxial air outlet pipe (23), and the ends of the air inlet pipe (22) and the air outlet pipe (23) away from the dehumidification support tube (21) are both closed; An air inlet branch pipe (221) is connected between the side wall of the air inlet pipe (22) and the air outlet of the drying box (1), and the auxiliary evaporator (42) is arranged in the air inlet branch pipe (221); an air outlet branch pipe (231) is connected between the side wall of the air outlet pipe (23) and the air inlet of the main fan (26); The silica gel dehumidification wheel (24) is provided with a coaxial rotating shaft (241), the rotating shaft (241) is coaxially arranged in the air inlet pipe (22) and the air outlet pipe (23), and the outer diameter of the rotating shaft (241) is smaller than the inner diameter of the air inlet pipe (22) and the air outlet pipe (23), the first end of the rotating shaft (241) is rotatably connected to the closed end of the air inlet pipe (22), and the second end of the rotating shaft (241) and the closed end of the air outlet pipe (23) are connected to a motor (242).

3. The adsorption heat pump clothes dryer according to claim 2, characterized in that: A filter screen (25) is installed in the dehumidification support tube (21), and the filter screen (25) is located between the air inlet tube (22) and the silica gel dehumidification wheel (24).

4. The adsorption heat pump clothes dryer according to claim 3, characterized in that: The silica gel dehumidification wheel (24) and the filter screen (25) are both detachably connected to the dehumidification support tube (21); The silica gel dehumidification wheel (24), the air inlet pipe (22), and the motor (242) are all detachably connected to the rotating shaft (241); The side wall of the dehumidification support tube (21) is provided with an inspection door (211).

5. The adsorption heat pump clothes dryer according to claim 2, characterized in that: An auxiliary evaporator containing box (2210) is provided in the middle of the air inlet branch pipe (221), and the auxiliary evaporator (42) is installed in the auxiliary evaporator containing box (2210).

6. The adsorption heat pump clothes dryer according to claim 1, characterized in that: The dehumidification pipe (34) is provided with a main evaporator containing box (340) located outside the dehumidification support pipe (21), and the main evaporator (43) is installed in the main evaporator containing box (340).

7. The adsorption heat pump clothes dryer according to claim 2, characterized in that: The dehumidification mechanism (3) further comprises a hot air pipe (31) arranged along the length direction of the dehumidification support pipe (21); the hot air pipe (31) is installed in the drying area and is located between the silica gel dehumidification wheel (24) and the air outlet pipe (23); the condenser (44) is installed in the dehumidification support pipe (21) and is arranged opposite to the air inlet of the hot air pipe (31).

8. The adsorption heat pump clothes dryer according to claim 7, characterized in that: A heating element (32) is installed in the hot air pipe (31).

9. The adsorption heat pump clothes dryer according to claim 8, characterized in that: In the length direction of the dehumidification support tube (21), the hot air tube (31) and the moisture absorption cover (33) are both slidably connected to the dehumidification support tube (21).

10. The adsorption heat pump clothes dryer according to claim 2, characterized in that: A fresh air duct (5) is provided on the side wall of the dehumidification support tube (21), and the fresh air duct (5) is provided between the air inlet duct (22) and the silica gel dehumidification wheel (24).

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