Air duct system, double barrel laundry treatment apparatus, and drying method

Abstract

This invention relates to an air duct system, a twin-drum garment processing device, and a drying method. The air duct system includes an air inlet assembly comprising an upper air inlet duct and a lower air inlet duct; an air outlet assembly comprising an upper air outlet duct and a lower air outlet duct; a main drying air duct disposed between the air inlet assembly and the air outlet assembly; a first air distribution assembly comprising a first air distribution shell and a first air distribution component, wherein a first air distribution chamber is formed within the first air distribution shell, and the first air distribution shell has a first main air outlet, a first upper branch air outlet, a first lower branch air outlet, and a moisture exhaust outlet; and a second air distribution assembly comprising a second air distribution shell and a second air distribution component, wherein a second air distribution chamber is formed within the second air distribution shell, and the second air distribution shell has a second main air outlet, a second upper branch air outlet, and a second lower branch air outlet. This invention enables high-temperature, high-humidity airflow to be discharged from the moisture exhaust outlet during the early stages of drying, whether individually or simultaneously, reducing the operating pressure on the heat exchange components of the twin-drum garment processing device and improving drying efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothes processing equipment, and in particular to an air duct system, a double-cylinder clothes processing equipment and a drying method. BACKGROUND

[0002] With the improvement of living standards, people pursue safer and more comfortable clothes drying experiences. Currently, the drying method of clothes processing devices with drying functions is gradually changing from electric heating drying to heat pump drying. Currently, there are double-cylinder clothes processing devices on the market that share a set of heat pump systems. During the early stage of simultaneous drying of the two cylinders, a large amount of high-temperature and high-humidity air flow is generated. The only set of heat pump two-device modules (evaporator and condenser) are under very heavy working condition load when dealing with the high-temperature and high-humidity air flow of the two cylinders. At this time, it is necessary to increase the heat exchange area of the two devices to solve the problem of heavy working condition load during simultaneous drying of the two cylinders. However, increasing the heat exchange area of the two devices will result in an increase in the size of the entire machine, and the production, manufacturing and transportation costs will also increase accordingly.

[0003] In related technologies, a separate direct exhaust air duct is added. When direct exhaust is needed, the direct exhaust air duct is opened to exhaust high-humidity air to the external environment. When direct exhaust is not needed, the air duct is closed. The direct exhaust air duct only functions when high-temperature and high-humidity air is exhausted, and is idle at other times. This structure is complex, occupies internal space, is not conducive to effective use of internal space, and is high in cost. SUMMARY

[0004] To overcome the problem of complex structure and increased production cost of double-cylinder clothes processing equipment caused by the addition of a direct exhaust air duct to exhaust high-temperature and high-humidity air in related technologies, the present application proposes, in a first aspect, an air duct system for a double-cylinder clothes processing equipment, the air duct system comprising:

[0005] an air inlet assembly comprising an upper air inlet duct and a lower air inlet duct;

[0006] an air outlet assembly comprising an upper air outlet duct and a lower air outlet duct;

[0007] a main drying air duct arranged between the air inlet assembly and the air outlet assembly;

[0008] The first air distribution assembly comprises a first air distribution shell and a first air distribution component. The first air distribution shell forms a first air distribution cavity. The first air distribution shell is provided with a first main air outlet, a first upper air outlet, a first lower air outlet and a dehumidifying outlet. The first main air outlet is connected with the first air distribution cavity and the outlet end of the main drying air duct. The first upper air outlet is connected with the first air distribution cavity and the inlet end of the upper air inlet duct. The first lower air outlet is connected with the first air distribution cavity and the inlet end of the lower air inlet duct. The dehumidifying outlet is connected with the first air distribution cavity and the external environment. The first air distribution component is arranged in the first air distribution cavity. The first air distribution component has at least a first working position in which the first upper air outlet and the first lower air outlet are simultaneously opened and the dehumidifying outlet is closed, a second working position in which one of the first upper air outlet and the first lower air outlet is opened and the other is closed and the dehumidifying outlet is closed, and a third working position in which the first upper air outlet, the first lower air outlet and the dehumidifying outlet are simultaneously opened. The first air distribution component can be controlled to switch between the first working position, the second working position and the third working position.

[0009] The second air distribution assembly comprises a second air distribution shell and a second air distribution component. The second air distribution shell forms a second air distribution cavity. The second air distribution shell is provided with a second main air outlet, a second upper air outlet and a second lower air outlet. The second main air outlet is connected with the second air distribution cavity and the inlet end of the main drying air duct. The second upper air outlet is connected with the second air distribution cavity and the outlet end of the upper air outlet duct. The second lower air outlet is connected with the second air distribution cavity and the outlet end of the lower air outlet duct. The second air distribution component is arranged in the second air distribution cavity. The second air distribution component has at least a fourth working position in which the second upper air outlet and the second lower air outlet are simultaneously opened, and a fifth working position in which one of the second upper air outlet and the second lower air outlet is opened and the other is closed. The second air distribution component can be controlled to switch between the fourth working position and the fifth working position.

[0010] In some embodiments, the first air distribution cavity comprises a first cylindrical cavity. The first upper air outlet and the first lower air outlet are arranged on a first side wall along the circumferential direction of the first cylindrical cavity. The first air distribution component is arranged on a first bottom wall along the axial direction of the first cylindrical cavity. The rotation axis of the first air distribution component is coaxial with the axis of the first cylindrical cavity. The first main air outlet is arranged opposite to the first bottom wall. The first air distribution component comprises a first fitting surface and a second fitting surface connected with each other. The first fitting surface is arranged in fitting with the first side wall. The second fitting surface is arranged in fitting with the first bottom wall. The dehumidifying outlet is arranged on the first bottom wall. The second fitting surface is provided with an avoiding outlet.

[0011] When the first air distribution component is in the first working position, the first abutting surface opens the first upper air outlet and the first lower air outlet simultaneously, and the second abutting surface closes the wet air outlet; when the first air distribution component is in the second working position, the first abutting surface opens one of the first upper air outlet and the first lower air outlet and closes the other one, and the second abutting surface closes the wet air outlet; when the first air distribution component is in the third working position, the first abutting surface opens the first upper air outlet and the first lower air outlet simultaneously, and the wet air outlet coincides with the avoiding opening.

[0012] In some embodiments, the first side wall comprises a first arc segment, a second arc segment, a third arc segment and a fourth arc segment connected in sequence along the circumferential direction of the first cylindrical cavity, the first upper air outlet is arranged in the first arc segment, the first lower air outlet is arranged in the third arc segment, the arc length of the first arc segment is L1, the arc length of the second arc segment is L2, the arc length of the third arc segment is L3, the arc length of the fourth arc segment is L4, and the arc length of the second abutting surface is L0, which satisfy:

[0013] L4>L2, L0>L1, L0>L2, L0>L3, and L0≤L4, L0

[0014] In some embodiments, when the first air distribution component is in the third working position, the air outlet area of the wet air outlet is greater than the sum of the air outlet areas of the first upper air outlet and the first lower air outlet.

[0015] In some embodiments, the first air distribution component further has a sixth working position in which one of the first upper air outlet and the first lower air outlet is opened and the other one is closed, and the wet air outlet is opened, and the first air distribution component can be controlled to switch between the first working position, the second working position, the third working position and the sixth working position.

[0016] In some embodiments, the second abutting surface comprises a first abutting part and a second abutting part, the first abutting part and the second abutting part are arranged along the radial direction of the first cylindrical cavity, and the rotation axis of the first air distribution component is located between the first abutting part and the second abutting part, the first abutting surface is connected with the first abutting part, the avoiding opening is arranged in the second abutting part, and the abutting area of the first abutting part and the first bottom wall is greater than the abutting area of the second abutting part and the first bottom wall.

[0017] When the first air distribution component is in the sixth working position, the first abutting surface opens one of the first upper air outlet and the first lower air outlet and closes the other one, and the second abutting surface completely opens or partially opens the wet air outlet.

[0018] In some embodiments, the second air distribution cavity comprises a second cylindrical cavity, the second upper air outlet and the second lower air outlet are arranged along a second side wall of the second cylindrical cavity in a circumferential direction, the second air distribution member is arranged on a second bottom wall of the second cylindrical cavity in an axial direction, an axis of rotation of the second air distribution member is coaxial with an axis of the second cylindrical cavity, the second main air outlet is arranged opposite to the second bottom wall, and the second air distribution member comprises a third abutting surface arranged in abutment with the second side wall;

[0019] When the second air distribution member is in the fourth working position, the third abutting surface simultaneously opens the second upper air outlet and the second lower air outlet; and when the second air distribution member is in the fifth working position, the third abutting surface opens one of the second upper air outlet and the second lower air outlet and closes the other.

[0020] In some embodiments, the first air distribution assembly further comprises a first driving component connected with the first air distribution member, and the first driving component drives the first air distribution member to switch between the first working position, the second working position and the third working position.

[0021] The second air distribution assembly further comprises a second driving component connected with the second air distribution member, and the second driving component drives the second air distribution member to switch between the fourth working position and the fifth working position.

[0022] The second aspect of the present application provides a double-cylinder clothes treatment device, which comprises:

[0023] a first clothes treatment cylinder and a second clothes treatment cylinder arranged in sequence from top to bottom;

[0024] a heat exchange assembly and an air fan assembly;

[0025] Any air duct system provided in the first aspect of the present application, the main drying air duct is arranged between the first clothes treatment cylinder and the second clothes treatment cylinder, the heat exchange assembly and the air fan assembly are arranged in the main drying air duct, an air outlet end of the upper air inlet duct is in communication with an upper air inlet of the first clothes treatment cylinder, an air outlet end of the lower air inlet duct is in communication with a lower air inlet of the second clothes treatment cylinder, an air inlet end of the upper air outlet duct is in communication with an upper air outlet of the first clothes treatment cylinder, and an air inlet end of the lower air outlet duct is in communication with a lower air outlet of the second clothes treatment cylinder.

[0026] The drying process of the laundry treatment device in the double-cylinder drying mode includes an internal circulation drying process and a moisture exhaust drying process; in the internal circulation drying process, the first air distribution member is in the first working position, and the second air distribution member is controlled to be in the fourth working position; in the moisture exhaust drying process, the first air distribution member is in the third working position, and the second air distribution member is in the fourth working position.

[0027] The third aspect of the present application provides a drying method of a double-cylinder laundry treatment device, which is used for controlling the double-cylinder laundry treatment device provided in the second aspect of the present application, and the drying method includes:

[0028] When the double-cylinder laundry treatment device is in the double-cylinder drying mode, the first air distribution member is controlled to be in the first working position, and the second air distribution member is controlled to be in the fourth working position;

[0029] The inlet temperature and the outlet temperature of the main drying air duct are obtained, and when the temperature difference between the inlet temperature and the outlet temperature is less than a set temperature difference, the first air distribution member is controlled to be in the third working position;

[0030] The outlet temperature of the moisture exhaust port is obtained, and when the outlet temperature of the moisture exhaust port is less than a set outlet temperature, the first air distribution member is restored to the first working position.

[0031] The technical solution of the present application can include the following beneficial effects: the present application sets a moisture exhaust port on the first air distribution assembly between the main drying air duct and the air inlet assembly, so that high-temperature and high-humidity air flow is exhausted from the moisture exhaust port in the early stage of single-cylinder drying or simultaneous drying of the double-cylinder laundry treatment device, thereby reducing the working condition pressure of the heat exchange assembly of the double-cylinder laundry treatment device and improving the drying efficiency. Moreover, the air duct system of the present application has a simple and reliable structure, and the switching of the positions of the air distribution members realizes the switching of the internal circulation drying process and the moisture exhaust drying process in the single-cylinder drying or double-cylinder drying process, thereby significantly improving the drying efficiency at a lower cost and smaller structural limitation.

[0032] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings, which are incorporated into and form part of the specification, illustrate an embodiment consistent with the present application and, together with the specification, serve to explain the principles of the present application.

[0034] Figure 1 is a partial structure diagram of an air duct system according to an exemplary embodiment.

[0035] Figure 2is a cross-sectional view of a first air dividing assembly according to an exemplary embodiment.

[0036] Figure 3 is a cross-sectional view of a second air dividing assembly according to an exemplary embodiment.

[0037] Figure 4 is a schematic view of a second air dividing assembly according to another exemplary embodiment.

[0038] Figure 5 is a schematic view of a dual tub laundry treating apparatus according to an exemplary embodiment.

[0039] Figure 6 is a flow path diagram of an internal circulation drying process of a dual tub laundry treating apparatus in a dual tub drying mode according to an exemplary embodiment.

[0040] Figure 7 is a flow path diagram of a moisture exhaust drying process of a dual tub laundry treating apparatus in a dual tub drying mode according to an exemplary embodiment.

[0041] Figures 8a-8b is a position state diagram of a first air dividing member and a second air dividing member in an internal circulation drying process in a dual tub drying mode according to an exemplary embodiment.

[0042] Figures 9a-9b is a position state diagram of a first air dividing member and a second air dividing member in a moisture exhaust drying process in a dual tub drying mode according to an exemplary embodiment.

[0043] Figures 10a-10b is a position state diagram of a first air dividing member and a second air dividing member in an internal circulation drying process in a single tub drying mode according to an exemplary embodiment.

[0044] Figures 11a-11b is a position state diagram of a first air dividing member and a second air dividing member in a moisture exhaust drying process in a single tub drying mode according to an exemplary embodiment.

[0045] Figure 12 is a drying flow diagram of a dual tub laundry treating apparatus according to an exemplary embodiment.

[0046] Reference numerals are as follows:

[0047] 1, first laundry treatment drum; 2, second laundry treatment drum; 3, heat exchange assembly; 4, fan assembly; 51, main drying air duct; 52, upper air inlet duct; 53, lower air inlet duct; 54, upper air outlet duct; 55, lower air outlet duct; 6, first air distribution assembly; 61, first air distribution shell; 611, first arc segment; 612, second arc segment; 613, third arc segment; 614, fourth arc segment; 615, first bottom wall; 62, first air distribution member; 621, first abutting surface; 622, second abutting surface; 6221, first abutting portion; 6222, second abutting portion; 6101, first upper branch air outlet; 6102, first lower branch air outlet; 6103, dehumidifying outlet; 6104, avoiding outlet; 63, first rotating shaft; 7, second air distribution assembly; 71, second air distribution shell; 711, second bottom wall; 72, second air distribution member; 721, third abutting surface; 722, fourth abutting surface; 7101, second upper branch air outlet; 7102, second lower branch air outlet; 73, second rotating shaft; 74, connecting arm. DETAILED DESCRIPTION

[0048] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, unless otherwise indicated, like numbers refer to like elements throughout the several drawings. The following description of exemplary embodiments is not intended to represent all embodiments in accordance with the present disclosure. Rather, they are merely examples in accordance with aspects of the present disclosure as detailed in the appended claims.

[0049] According to an exemplary embodiment, as shown in Figures 1-4 The present embodiment proposes a kind of air duct system for double-cylinder laundry treatment equipment, air duct system includes air inlet assembly, air outlet assembly and main drying air duct 51, wherein, air inlet assembly includes upper air inlet duct 52 and lower air inlet duct 53, air outlet assembly includes upper air outlet duct 54 and lower air outlet duct 55, main drying air duct 51 is arranged between air inlet assembly and air outlet assembly, main drying air duct 51 connects the air flow passage between upper air inlet assembly and air outlet assembly. Upper air inlet duct 52 is used to be connected with the upper air inlet of the first laundry treatment drum 1 located above the double-cylinder laundry treatment equipment, lower air inlet duct 53 is used to be connected with the lower air inlet of the second laundry treatment drum 2 located below the double-cylinder laundry treatment equipment, upper air outlet duct 54 is used to be connected with the upper air outlet of the first laundry treatment drum 1, lower air outlet duct 55 is used to be connected with the lower air outlet of the second laundry treatment drum 2.

[0050] The air duct system further comprises a first sub-air assembly 6 and a second sub-air assembly 7. The first sub-air assembly 6 comprises a first sub-air shell 61 and a first sub-air component 62. The first sub-air shell 61 defines a first sub-air cavity therein. The first sub-air shell 61 is provided with a first main air port, a first upper branch air port 6101, a first lower branch air port 6102, and a dehumidifying port 6103. The first main air port communicates the outlet end of the main drying air duct 51 with the first sub-air cavity. The first upper branch air port 6101 communicates the inlet end of the upper inlet air duct 52 with the first sub-air cavity. The first lower branch air port 6102 communicates the inlet end of the lower inlet air duct 53 with the first sub-air cavity. The dehumidifying port 6103 communicates the first sub-air cavity with the external environment. The first sub-air component 62 is arranged in the first sub-air cavity. The first sub-air component 62 has at least a first working position in which the first upper branch air port 6101 and the first lower branch air port 6102 are simultaneously opened and the dehumidifying port 6103 is closed, a second working position in which one of the first upper branch air port 6101 and the first lower branch air port 6102 is opened and the other is closed and the dehumidifying port 6103 is closed, and a third working position in which the first upper branch air port 6101, the first lower branch air port 6102, and the dehumidifying port 6103 are simultaneously opened. The first sub-air component 62 can be controlled to switch between the first working position, the second working position, and the third working position. The second sub-air assembly 7 comprises a second sub-air shell 71 and a second sub-air component 72. The second sub-air shell 71 defines a second sub-air cavity therein. The second sub-air shell 71 is provided with a second main air port, a second upper branch air port 7101, and a second lower branch air port 7102. The second main air port communicates the inlet end of the main drying air duct 51 with the second sub-air cavity. The second upper branch air port 7101 communicates the outlet end of the upper outlet air duct 54 with the second sub-air cavity. The second lower branch air port 7102 communicates the outlet end of the lower outlet air duct 55 with the second sub-air cavity. The second sub-air component 72 is arranged in the second sub-air cavity. The second sub-air component 72 has at least a fourth working position in which the second upper branch air port 7101 and the second lower branch air port 7102 are simultaneously opened, and a fifth working position in which one of the second upper branch air port 7101 and the second lower branch air port 7102 is opened and the other is closed. The second sub-air component 72 can be controlled to switch between the fourth working position and the fifth working position.

[0051] When the first sub-air component 62 is in the first working position and the second sub-air component 72 is in the fourth working position, the double-barrel clothes treatment apparatus can realize the double-barrel internal circulation drying function in the double-barrel simultaneous drying process. When the first sub-air component 62 is in the third working position and the second sub-air component 72 is in the fourth working position, the double-barrel clothes treatment apparatus can realize the double-barrel dehumidifying drying function in the double-barrel simultaneous drying process. At this time, the purpose of opening the first upper branch air port 6101 and the first lower branch air port 6102 is to maintain the air pressure balance inside the machine. When the first sub-air component 62 is in the second working position and the second sub-air component 72 is in the fifth working position, the double-barrel clothes treatment apparatus can realize the internal circulation drying function in the single-barrel drying process.

[0052] In a preferred embodiment, the air outlet area of the moisture exhaust port 6103 is greater than the sum of the air outlet areas of the first upper air supply port 6101 and the first lower air supply port 6102, so as to achieve the optimal high-temperature and high-humidity moisture exhaust effect,

[0053] In some embodiments, as shown in Figure 2 The first air distribution cavity includes a first cylindrical cavity, the first upper air supply port 6101 and the first lower air supply port 6102 are spaced apart along the first side wall of the first cylindrical cavity in the circumferential direction, the first air distribution member 62 is rotatably arranged on the first bottom wall 615 of the first cylindrical cavity in the axial direction, the rotation axis of the first air distribution member 62 is coaxial with the axis of the first cylindrical cavity, and the first main air supply port is arranged opposite to the first bottom wall 615; the first air distribution member 62 includes a first abutting surface 621 and a second abutting surface 622, the first abutting surface 621 is arranged in abutment with the first side wall, the second abutting surface 622 is arranged in abutment with the first bottom wall 615, the moisture exhaust port 6103 is arranged on the first bottom wall 615, and the second abutting surface 622 is provided with an avoiding port 6104. The second abutting surface 622 is rotatably arranged on the first bottom wall 615, the avoiding port 6104 arranged on the second abutting surface 622 is used to coincide with the moisture exhaust port 6103 when the second abutting surface 622 is rotated to a specific position, at this time the moisture exhaust port 6103 communicates the first air distribution cavity with the external environment, and the high-temperature and humid hot air flow in the first air distribution cavity entering from the main drying air duct 51 can be exhausted from the moisture exhaust port 6103. In addition, when the second abutting surface 622 is rotated to other positions, the second abutting surface 622 can block the moisture exhaust port to plug the moisture exhaust port 6103, so as to avoid the leakage of the drying air flow.

[0054] The first fitting surface 621 of the embodiment is rotatably arranged on the sidewall of the first air distribution cavity, the first fitting surface 621 is arc-shaped, and the second fitting surface 622 is planar. When the first air distribution member 62 is in different working positions, the first fitting surface 621 and the second fitting surface 622 will be rotated to the corresponding positions. For example, when the first air distribution member 62 is in the first working position, the first fitting surface 621 is located in the transition area between the first upper branch air outlet 6101 and the first lower branch air outlet 6102 to completely open the first upper branch air outlet 6101 and the first lower branch air outlet 6102, and the second fitting surface 622 closes the exhaust port 6103. For example, the first fitting surface 621 is located opposite to the wall surface between the first upper branch air outlet 6101 and the first lower branch air outlet 6102, at this time, the second fitting surface 622 is located in a position capable of completely blocking the exhaust port 6103. When the first air distribution member 62 is in the second working position, the first fitting surface 621 is located in a position capable of completely opening one of the first upper branch air outlet 6101 and the first lower branch air outlet 6102 and completely closing the other one, and the second fitting surface 622 is located in a position capable of completely blocking the exhaust port 6103. When the first air distribution member 62 is in the third working position, the first fitting surface 621 is located in a position capable of completely opening or partially opening the first upper branch air outlet 6101 and the first lower branch air outlet 6102, and the second fitting surface 622 is located in a position capable of completely or partially coinciding the escape port 6104 with the exhaust port 6103.

[0055] In one implementable manner, continuing to refer to Figure 2The first bottom wall 615 comprises a first semicircular portion and a second semicircular portion. The first upper branch air inlet 6101 and the first lower branch air inlet 6102 are located at positions corresponding to the first semicircular portion, and the exhaust port 6103 is arranged at the second semicircular portion. For example, the exhaust port 6103 is arranged on the center line of the wall surface between the first upper branch air inlet 6101 and the first lower branch air inlet 6102. The second abutting surface 622 comprises a first abutting portion 6221 and a second abutting portion 6222. The first abutting surface 621 is connected to the first abutting portion 6221, and the first abutting portion 6221 and the second abutting portion 6222 are arranged along the radial direction of the first cylindrical cavity. The bypass port 6104 is arranged at the second abutting portion 6222. When the first air distribution member 62 is in the first working position, the first abutting surface 621 and the first abutting portion 6221 are both rotated to the second semicircular portion, and the second abutting portion 6222 is rotated to the first semicircular portion. The first abutting surface 621 opens the first upper branch air inlet 6101 and the first lower branch air inlet 6102, and the first abutting portion 6221 blocks the exhaust port 6103. The first abutting portion 6221 and the second abutting portion 6222 can have the same size and structure, or can have different sizes and structures. In a preferred embodiment, the area of the second abutting portion 6222 abutting the first bottom wall 615 is smaller than the abutting area of the first abutting portion 6221 and the first bottom wall 615, so as to reduce the resistance during rotation of the first abutting surface 621. When the first air distribution member 62 is in the third working position, the first abutting surface 621 and the first abutting portion 6221 are both rotated to the first semicircular portion, and the second abutting portion 6222 is rotated to the second semicircular portion. The first abutting surface 621 partially opens or fully opens the first upper branch air inlet 6101 and the first lower branch air inlet 6102, and the bypass port 6104 coincides with the exhaust port 6103 at this time.

[0056] In some embodiments, continuing to refer to Figure 2, the first side wall comprises a first arc segment 611, a second arc segment 612, a third arc segment 613 and a fourth arc segment 614 connected in sequence along a circumferential direction of the first cylindrical cavity, the first upper air inlet 6101 is arranged on the first arc segment 611, the first lower air inlet 6102 is arranged on the third arc segment 613, an arc length of the first arc segment 611 is L1, an arc length of the second arc segment 612 is L2, an arc length of the third arc segment 613 is L3, an arc length of the fourth arc segment 614 is L4, an arc length of the second abutting surface 622 is L0, and the following conditions are met: L4>L2, L0>L1, L0>L3, L0≤L4, and L0<L1+L2+L3. In the case that each arc segment meets the above conditions, when the first abutting surface 621 is located at a position corresponding to L4, the first abutting surface 621 opens the first upper air inlet 6101 and the first lower air inlet 6102, when the first abutting surface 621 is located at a position corresponding to L2, the first abutting surface 621 opens the first upper air inlet 6101, the first air inlet and the moisture exhaust port 6103 at the same time, and when the first abutting surface 621 is located at a position corresponding to L1 or L3, the first abutting surface 621 separately blocks the first upper air inlet 6101 and the second upper air inlet 7101. In a preferred embodiment, L0 also meets the condition: L0>L2, so as to achieve partial blocking of the first upper air inlet 6101 and the first lower air inlet 6102.

[0057] In some embodiments, the first air distribution member 62 also has a sixth working position in which one of the first upper air inlet 6101 and the first lower air inlet 6102 is opened and the other is closed, and the moisture exhaust port 6103 is opened, and the second air distribution member 72 can be controlled to switch between the first working position, the second working position, the third working position and the sixth working position. The present embodiment can realize the single-cylinder moisture exhaust drying function of the double-cylinder clothes treatment apparatus in the single-cylinder drying process when the first air distribution member 62 is in the sixth working position.

[0058] In an example, the second abutting surface 622 comprises a first abutting portion 6221 and a second abutting portion 6222, the first abutting portion 6221 and the second abutting portion 6222 are arranged along the radial direction of the first cylindrical cavity, and the rotation axis of the first air distribution member 62 is located between the first abutting portion 6221 and the second abutting portion 6222, the first abutting surface 621 is connected with the first abutting portion 6221, and the bypass opening 6104 is arranged at the second abutting portion 6222, the abutting area of the first abutting portion 6221 and the first bottom wall 615 is greater than the abutting area of the second abutting portion 6222 and the first bottom wall 615, when the first air distribution member 62 is in the sixth working position, the first abutting surface 621 completely or partially opens one of the first upper air outlet 6101 and the first lower air outlet 6102 and closes the other one, and the second abutting surface 622 completely or partially opens the moisture exhaust opening 6103. The structure and size of the first abutting portion 6221 and the second abutting portion 6222 can be reasonably designed to achieve the partial opening or complete opening of the moisture exhaust opening 6103 when the first air distribution member 62 is in the sixth working position.

[0059] In other realizable modes, when the heat exchange assembly 3 can cope with the working pressure in the single-cylinder drying process, it is not necessary to perform single-cylinder moisture exhaust to reduce the working pressure of the heat exchange assembly 3 in the single-cylinder drying process, and in this case, the first air distribution member 62 can not have the sixth working position.

[0060] The structure of the second air distribution assembly 7 is not specifically limited in the embodiment. In an example, as shown in Figure 3 the second air distribution cavity comprises a second cylindrical cavity, the second upper air outlet 7101 and the second lower air outlet 7102 are arranged along the second side wall of the second cylindrical cavity in the circumferential direction, the second air distribution member 72 is arranged on the second bottom wall 711 in the axial direction of the second cylindrical cavity and can rotate, the rotation axis of the second air distribution member 72 is coaxial with the axis of the second cylindrical cavity, the second main air outlet is arranged opposite to the second bottom wall 711, and the second air distribution member 72 comprises a third abutting surface 721 which is arranged in abutment with the second side wall. When the second air distribution member 72 is in the fourth working position, the third abutting surface 721 opens the second upper air outlet 7101 and the second lower air outlet 7102 at the same time, and in this case, the third abutting surface 721 is located at a position for opening the second upper air outlet 7101 and the second lower air outlet 7102 at the same time. When the second air distribution member 72 is in the fifth working position, the third abutting surface 721 opens one of the second upper air outlet 7101 and the second lower air outlet 7102 and closes the other one, and in this case, the third abutting surface 721 is located at a position for opening one of the second upper air outlet 7101 and the second lower air outlet 7102 and closing the other one.

[0061] In an example, as shown in Figure 3As shown, the second air distribution assembly 7 further comprises a fourth abutting surface 722, which is connected to the third abutting surface 721 and abuts to the second bottom wall 711. At this time, the second air distribution assembly 7 is similar in structure to the first air distribution assembly 6, and the difference between the first air distribution assembly 6 and the second air distribution assembly 7 is that the first bottom wall 615 of the first air distribution assembly 6 is provided with a fresh air inlet. Alternatively, the second air distribution assembly 7 is designed to have the same structure as the first air distribution assembly 6 to improve the versatility. In other realizable modes, as shown in FIG. 6B, the second air distribution assembly 7 is designed to have the same structure as the first air distribution assembly 6, and the fresh air inlet is arranged on the second bottom wall 711 of the second air distribution assembly 7. Figure 4 As shown, the second air distribution assembly 7 further comprises a connecting arm 74. The connecting arm 74 is connected to the first abutting surface 621 and is arranged on the second bottom wall 711. The third abutting surface 721 is driven to rotate by driving the connecting arm 74 to rotate.

[0062] In some embodiments, as shown in FIG. 6B, the first air distribution assembly 6 further comprises a first driving component connected to the first air distribution member 62, which drives the first air distribution member 62 to switch between the first working position, the second working position and the third working position. Figure 2 As shown, the first air distribution assembly 6 further comprises a first driving component connected to the first air distribution member 62, which drives the first air distribution member 62 to switch between the first working position, the second working position and the third working position. The first bottom wall 615 of the first air distribution cavity is provided with a first rotating shaft 63, and the first air distribution member 62 is connected to the first rotating shaft 63. Exemplarily, the first rotating shaft 63 is located on the rotating axis of the first air distribution member 62. The first driving component is connected to the first rotating shaft 63, and the first driving component drives the first rotating shaft 63 to rotate so as to drive the first air distribution member 62 to rotate. As shown in FIG. 6B, the first driving component is a combination of a driving motor and a transmission component. Figure 3 and Figure 4 As shown, the second air distribution assembly 7 further comprises a second driving component connected to the second air distribution member 72, which drives the second air distribution member 72 to switch between the fourth working position and the fifth working position. The second bottom wall 711 of the second air distribution cavity is provided with a second rotating shaft 73, and the second air distribution member 72 is connected to the second rotating shaft 73. Exemplarily, the second rotating shaft 73 is located on the rotating axis of the second air distribution member 72. The second driving component is connected to the second rotating shaft 73, and the first driving component drives the second rotating shaft 73 to rotate so as to drive the second air distribution member 72 to rotate. The first driving component and the second driving component are, for example, a combination of a driving motor and a transmission component.

[0063] The present embodiment realizes the discharge of high-temperature and high-humidity airflow from the moisture discharge port 6103 in the early stage of single-cylinder drying or simultaneous drying of the double-cylinder clothes treatment equipment by arranging the moisture discharge port 6103 on the first air distribution assembly 6 located between the main drying air duct 51 and the air inlet assembly, thereby reducing the working pressure of the heat exchange assembly 3 of the double-cylinder clothes treatment equipment and improving the drying efficiency. The structure of the air duct system of the present embodiment is simple and reliable, and the switching of the internal circulation drying process and the moisture discharge drying process in the single-cylinder drying or double-cylinder drying process is realized by switching the position of the air distribution member, thereby significantly improving the drying efficiency at a lower cost and smaller structural limitation.

[0064] It should be noted that the Nth working position (N is an integer from 1 to 6) in the embodiment is only used to distinguish different positions. For example, the first dividing piece 62 includes a first working position, a second working position, a third working position and a sixth working position, which does not mean that the first dividing piece 62 also has a fourth working position and a fifth working position. The second dividing piece 72 includes a fourth working position and a fifth working position, which does not mean that the second dividing piece 72 also has a first working position, a second working position and a third working position.

[0065] According to an exemplary embodiment, as shown in Figure 5 The embodiment provides a double-cylinder clothes treatment device, which comprises a first clothes treatment cylinder 1, a second clothes treatment cylinder 2, a heat exchange assembly 3 and a fan assembly 4. The first clothes treatment cylinder 1 and the second clothes treatment cylinder 2 are arranged in sequence from top to bottom, and the first clothes treatment cylinder 1 and the second clothes treatment cylinder 2 both have a drying function and can be controlled to be dried separately or simultaneously. The heat exchange assembly 3 comprises an evaporator and a condenser, and the double-cylinder clothes treatment device further comprises a compressor and a throttling device, and the compressor, the condenser, the throttling device and the evaporator are connected in sequence to form a refrigerant circulation loop. In a preferred embodiment, the evaporator and the condenser are integrated to form a two-device structure. The double-cylinder clothes treatment device of the embodiment further comprises any air duct system provided in the above embodiment, and the main drying air duct 51 is arranged between the first clothes treatment cylinder 1 and the second clothes treatment cylinder 2, and the heat exchange assembly 3 and the fan assembly 4 are both arranged in the main drying air duct 51. For example, the fan assembly 4 is located on the air inlet side of the heat exchange assembly 3. The air outlet end of the upper air inlet duct 52 is communicated with the upper air inlet of the first clothes treatment cylinder 1, the air outlet end of the lower air inlet duct 53 is communicated with the lower air inlet of the second clothes treatment cylinder 2, the air inlet end of the upper air outlet duct 54 is communicated with the upper air outlet of the first clothes treatment cylinder 1, and the air inlet end of the lower air outlet duct 55 is communicated with the lower air outlet of the second clothes treatment cylinder 2. When the double-cylinder clothes treatment device is in a double-cylinder drying mode or a single-cylinder drying mode, the compressor and the fan assembly 4 are started, the refrigerant circulates between the compressor, the condenser, the throttling device and the evaporator, and the air flow circulates between the air duct system and the double-cylinder or circulates between the air duct system and the single-cylinder.

[0066] The double-cylinder clothes treatment device of the embodiment realizes switching between the internal circulation drying process and the moisture exhaust drying process in the single-cylinder drying mode or the double-cylinder drying mode, and the drying process of the clothes treatment device in the double-cylinder drying mode comprises the internal circulation drying process and the moisture exhaust drying process. In the internal circulation drying process, the first dividing piece 62 is in the first working position, and the second dividing piece 72 is controlled to be in the fourth working position. In the moisture exhaust drying process, the first dividing piece 62 is in the third working position, and the second dividing piece 72 is in the fourth working position.

[0067] The following will be described in combination with Figures 6-11. The inner circulation drying process and the moisture exhaust drying process in the single barrel drying mode or the double barrel drying mode are described in detail, wherein Figures 6-1 The black arrow in 1 indicates the airflow direction.

[0068] When the double barrel laundry treating apparatus is in the double barrel drying mode, the first air distributing member 62 of the first air distributing assembly 6 is in the first working position, and the second air distributing member 72 of the second air distributing assembly 7 is in the fourth working position, so that the first laundry treating barrel 1 and the second laundry treating barrel 2 are both in the inner circulation drying process. The position of the first air distributing member 62 is as shown in Figure 8a , and the position state of the second air distributing member 72 is as shown in Figure 8b . At this time, the first upper branch air outlet 6101, the first lower branch air outlet 6102, the second upper branch air outlet 7101 and the second lower branch air outlet 7102 are all in the open state, and the moisture exhaust outlet 6103 is in the closed state. The airflows in the first laundry treating barrel 1 and the second laundry treating barrel 2 can both circulate in the air duct system, realizing double barrel simultaneous drying, and the airflow direction is as shown in Figure 6 . In addition, in the early stage of double barrel drying, in order to reduce the working pressure of the heat exchange assembly 3 and improve the double barrel drying efficiency, the first air distributing member 62 can be in the third working position, and the second air distributing member 72 can be maintained in the fourth working position, so that the first laundry treating barrel 1 and the second laundry treating barrel 2 are both in the moisture exhaust drying process. The position of the first air distributing member 62 is as shown in Figure 9a , and the position state of the second air distributing member 72 is as shown in Figure 9b . At this time, the first upper branch air outlet 6101, the first lower branch air outlet 6102, the second upper branch air outlet 7101, the second lower branch air outlet 7102 and the moisture exhaust outlet 6103 are all in the open state. The high-temperature and high-humidity airflow discharged from the main drying air duct 51 can be discharged through the moisture exhaust outlet 6103, and the airflow direction is as shown in Figure 7 . In the moisture exhaust drying process, the moisture exhaust outlet 6103 can be in the fully open state or the partially open state, and the first upper branch air outlet 6101 and the first lower branch air outlet 6102 can also be in the fully open state or the partially open state. In a preferred embodiment, in order to achieve the optimal high-temperature and high-humidity moisture exhaust effect, when the first air distributing member 62 is in the third working position, the air outlet area of the moisture exhaust outlet 6103 is greater than the sum of the air outlet areas of the first upper branch air outlet 6101 and the first lower branch air outlet 6102. The purpose of opening the first upper branch air outlet 6101 and the first lower branch air outlet 6102 is to maintain the air pressure balance inside the machine.

[0069] When the double barrel laundry treating apparatus is in the single barrel drying mode, taking the drying of only the second laundry treating barrel 2 as an example, the first air distributing member 62 is in the second working position for the drying of the second laundry treating barrel 2, and the second air distributing member 72 is in the fifth working position for the drying of the second laundry treating barrel 2, so that the second laundry treating barrel 2 is in the inner circulation drying process. The position of the first air distributing member 62 is as shown in Figure 10aAs shown, the position state of the second air distribution member 72 is as shown in FIG. 7B. Figure 10b As shown, the position state of the second air distribution member 72 is as shown in FIG. 7B.At this time, the first lower air outlet 6102 and the second lower air outlet 7102 are in the open state, the first upper air outlet 6101, the second upper air outlet 7101 and the moisture exhaust port 6103 are in the closed state, and only the airflow in the second laundry treatment drum 2 can circulate in the air duct system to achieve separate drying of the second laundry treatment drum 2. In addition, in the early stage of drying of the second laundry treatment drum 2, in order to reduce the working pressure of the heat exchange assembly 3 and improve the drying efficiency of the second laundry treatment drum 2, the first air distribution member 62 can be placed in the sixth working position for drying of the second laundry treatment drum 2, and the second air distribution member 72 can be maintained in the fifth working position for drying of the second laundry treatment drum 2, so that the second laundry treatment drum 2 is in the moisture exhaust drying process. The position of the first air distribution member 62 is as shown in FIG. 6B. Figure 11a Figure 11b As shown, the position state of the second air distribution member 72 is as shown in FIG. 7B. At this time, the first lower air outlet 6102 and the second lower air outlet 7102 are in the open state, the first upper air outlet 6101, the second upper air outlet 7101 and the moisture exhaust port 6103 are in the closed state, and only the airflow in the second laundry treatment drum 2 can circulate in the air duct system to achieve separate drying of the second laundry treatment drum 2. In addition, in the early stage of drying of the second laundry treatment drum 2, in order to reduce the working pressure of the heat exchange assembly 3 and improve the drying efficiency of the second laundry treatment drum 2, the first air distribution member 62 can be placed in the sixth working position for drying of the second laundry treatment drum 2, and the second air distribution member 72 can be maintained in the fifth working position for drying of the second laundry treatment drum 2, so that the second laundry treatment drum 2 is in the moisture exhaust drying process. The position of the first air distribution member 62 is as shown in FIG. 6B.

[0070] Similarly, only the first laundry treatment drum 1 is dried, only the first air distribution member 62 is placed in the second working position for drying of the first laundry treatment drum 1, and the second air distribution member 72 is placed in the fifth working position for drying of the first laundry treatment drum 1, so that the first laundry treatment drum 1 is in the internal circulation drying process. At this time, the first upper air outlet 6101 and the second upper air outlet 7101 are in the open state, and the first lower air outlet 6102, the second lower air outlet 7102 and the moisture exhaust port 6103 are in the closed state. In the early stage of drying of the first laundry treatment drum 1, the first air distribution member 62 is placed in the sixth working position for drying of the first laundry treatment drum 1, and the second air distribution member 72 is maintained in the fifth working position for drying of the first laundry treatment drum 1, so that the first laundry treatment drum 1 is in the moisture exhaust drying process. At this time, the first upper air outlet 6101, the second upper air outlet 7101 and the moisture exhaust port 6103 are in the open state, and the first lower air outlet 6102 and the second lower air outlet 7102 are in the closed state. Only the first laundry treatment drum 1 is dried, which is similar to the drying of only the second laundry treatment drum 2, and will not be described in detail here.

[0071] According to an example embodiment, the present embodiment proposes a drying method of a double-barrel clothes processing apparatus, the drying method being used to control the double-barrel clothes processing apparatus proposed in the above embodiments, Figure 12 is a drying flow chart of a double-barrel clothes processing apparatus according to an example embodiment, with reference to Figure 12 , the drying method comprises the following steps:

[0072] S1201, in the case that the double-barrel clothes processing apparatus is in a double-barrel drying mode, controlling the first air distributing member 62 to be in a first working position and controlling the second air distributing member 72 to be in a fourth working position.

[0073] In the present embodiment, when the double-barrel clothes processing apparatus is running in the double-barrel drying mode, first, the first air distributing member 62 is in the first working position and the second air distributing member 72 is in the fourth working position, the position of the first air distributing member 62 is as shown in Figure 8a , and the position state of the second air distributing member 72 is as shown in Figure 8b . At this time, the first air distributing member 62 is in a position in which the first upper air outlet 6101 and the first lower air outlet 6102 are all opened, the second air distributing member 72 is in a position in which the second upper air outlet 7101 and the second lower air outlet 7102 are all opened, and the first clothes processing barrel 1 and the second clothes processing barrel 2 are in a double-barrel internal circulation drying process. At this time, the drying air flow direction is: the first clothes processing barrel 1 (the second clothes processing barrel 2) - the second air distributing assembly 7 - the fan assembly 4 - the heat exchange assembly - the first air distributing assembly 6 - the first clothes processing barrel 1 (the second clothes processing barrel 2), and the air flow direction is as shown in Figure 6 .

[0074] S1202, obtaining the inlet air temperature and the outlet air temperature of the main drying air duct 51, and in the case that the temperature difference between the inlet air temperature and the outlet air temperature is less than a set temperature difference, controlling the first air distributing member 62 to be in a third working position.

[0075] In the present embodiment, in the early stage of double-barrel drying, the air flow discharged by the first clothes processing barrel 1 and the second clothes processing barrel 2 is high-temperature and high-humidity air flow, at this time, the temperature difference between the inlet air temperature and the outlet air temperature of the main drying air duct 51 is much smaller than the temperature difference in other drying stages, because in the early stage of double-barrel drying, the working condition load of the heat exchange assembly 3 is large, and it is unable to cool and condense the large amount of high-temperature and high-humidity air flow of the inlet air port of the main drying air duct 51, therefore, the temperature of the outlet air port of the main drying air duct 51 is still very high, thereby resulting in a small temperature difference between the inlet air and the outlet air. Therefore, in the case that the temperature difference between the inlet air temperature and the outlet air temperature is less than a set temperature difference, it can be judged that the double barrel is in a high-temperature and high-humidity state. The set temperature difference is an empirical temperature difference value for determining the high-temperature and high-humidity state of the double barrel, and its size can be obtained according to test verification.

[0076] When the temperature difference between the inlet air temperature and the outlet air temperature is less than the set temperature difference, it indicates that the double cylinder is in a high-temperature and high-humidity state, the working condition load pressure of the heat exchange assembly 3 is relatively large, and the double cylinder needs to be dehumidified. By switching the first air distribution component 62 to the third working position and maintaining the second air distribution component 72 at the fourth working position, the position of the first air distribution component 62 is as shown in Figure 9a , and the position state of the second air distribution component 72 is as shown in Figure 9b . At this time, the first air distribution component 62 is in a position in which the first upper air outlet 6101, the first lower air outlet 6102, and the dehumidification outlet 6103 are opened. Meanwhile, the second air distribution component 72 is in a position in which the second upper air outlet 7101 and the second lower air outlet 7102 are opened. At this time, the double cylinder is in a dehumidification and drying process, and the flow direction of the drying air flow is: the first clothes treatment cylinder 1 (the second clothes treatment cylinder 2) - the second air distribution assembly 7 - the main drying air duct 51 - the first air distribution assembly 6 - the dehumidification outlet 6103 - the external environment, and the air flow direction is as shown in Figure 7 .

[0077] If the temperature difference between the inlet air temperature and the outlet air temperature is greater than or equal to the set temperature difference, it indicates that the double cylinder has not reached the high-temperature and high-humidity state, and the double-cylinder internal circulation drying process is continued until the drying is completed.

[0078] S1203, the outlet air temperature of the dehumidification outlet 6103 is obtained, and in a case where the outlet air temperature of the dehumidification outlet 6103 is less than the set outlet air temperature, the first air distribution component 62 is restored to the first working position.

[0079] In the embodiment, in a case where the outlet air temperature of the dehumidification outlet 6103 is less than the set outlet air temperature when the double cylinder is in the dehumidification and drying process, it indicates that, with the discharge of the high-temperature and high-humidity air flow, the outlet air temperature of the dehumidification outlet 6103 gradually decreases, the operating condition pressure of the heat exchange assembly 3 decreases, and the heat exchange assembly 3 can already cool and condense a large amount of high-temperature and high-humidity air flow in the inlet of the main drying air duct 51. At this time, the double-cylinder dehumidification and drying process is stopped, and the double cylinder is restored to the double-cylinder internal circulation drying process by restoring the first air distribution component 62 to the first working position.

[0080] In the description of the present specification, the description referring to the terms “one embodiment”, “some embodiments”, “an example”, “a specific example”, or “some examples” and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0081] Furthermore, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or a number of the indicated technical features. Thus, the features defined with "first", "second" can include at least one of the features explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0082] Any process or method descriptions or descriptions of the flow diagrams herein, or otherwise described herein, can be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the processes. The various embodiments of the application can include additional or fewer processes, steps, operations, or implementations, as desired for a particular implementation, and the order of the steps can be different from that which is shown or discussed herein. Such processes, steps, operations, or implementations can be omitted, combined, or performed concurrently, as desired for a particular implementation.

[0083] The logic and / or steps represented in the flow diagrams, or otherwise described herein, for example, can be embodied in non-transitory computer-readable media, which can be executed by an instruction execution system, apparatus, or device, such as a computer-based system, processor, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. The computer-readable medium can be a computer- readable storage medium or a computer-readable communication medium. The computer-readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium include the following: an electrical connection having one or more wires (electrical connections), a portable computer diskette (a magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber (an optical device), and a portable compact disc read-only memory (CDROM). Note that the computer-readable medium can even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, for example, via an optical scanner, then compiled, interpreted, or otherwise processed in a suitable manner, if necessary, and stored in a computer memory.

Claims

1. A duct system for processing twin-tube garments, characterized in that, The air duct system includes: An air intake assembly, comprising an upper air intake duct and a lower air intake duct; An air outlet assembly, comprising an upper air outlet duct and a lower air outlet duct; The main drying air duct is located between the air inlet assembly and the air outlet assembly; The first air distribution assembly includes a first air distribution shell and a first air distribution component. A first air distribution cavity is formed within the first air distribution shell. The first air distribution shell has a first main air inlet, a first upper branch air inlet, a first lower branch air inlet, and a dehumidification outlet. The first main air inlet connects the outlet end of the main drying air duct to the first air distribution cavity. The first upper branch air inlet connects the inlet end of the upper air inlet duct to the first air distribution cavity. The first lower branch air inlet connects the inlet end of the lower air inlet duct to the first air distribution cavity. The dehumidification outlet connects the first air distribution cavity to the external environment. The first air distribution component is disposed in the first air distribution cavity. The first air distribution component has a first working position that opens the first upper branch air outlet and the first lower branch air outlet simultaneously and closes the exhaust port, a second working position that opens one of the first upper branch air outlet and the first lower branch air outlet and closes the other and closes the exhaust port, and a third working position that opens the first upper branch air outlet, the first lower branch air outlet and the exhaust port simultaneously. The first air distribution component can be controlled to switch between the first working position, the second working position and the third working position. The second air distribution assembly includes a second air distribution shell and a second air distribution component. A second air distribution cavity is formed inside the second air distribution shell. The second air distribution shell has a second main air outlet, a second upper branch air outlet, and a second lower branch air outlet. The second main air outlet connects the air inlet end of the main drying air duct to the second air distribution cavity. The second upper branch air outlet connects the air outlet end of the upper air outlet duct to the second air distribution cavity. The second lower branch air outlet connects the air outlet end of the lower air outlet duct to the second air distribution cavity. The second air distribution component is disposed inside the second air distribution cavity. The second air distribution component has at least a fourth working position that allows the second upper branch air outlet and the second lower branch air outlet to be opened simultaneously, and a fifth working position that allows one of the second upper branch air outlet and the second lower branch air outlet to be opened while the other is closed. The second air distribution component can be controlled to switch between the fourth working position and the fifth working position. The first air distribution cavity includes a first cylindrical cavity. The first upper branch air outlet and the first lower branch air outlet are spaced apart along the first sidewall of the first cylindrical cavity in the circumferential direction. The first air distribution component is rotatably disposed on the first bottom wall in the axial direction of the first cylindrical cavity. The rotation axis of the first air distribution component is coaxial with the axis of the first cylindrical cavity. The first main air outlet is disposed opposite to the first bottom wall. The first air distribution component includes a first contact surface and a second contact surface connected to each other. The first contact surface is contacted with the first sidewall, and the second contact surface is contacted with the first bottom wall. The dehumidification port is disposed on the first bottom wall, and the second contact surface has an avoidance opening. When the first air distribution component is in the first working position, the first contact surface opens the first upper branch air outlet and the first lower branch air outlet simultaneously, and the second contact surface closes the exhaust port; when the first air distribution component is in the second working position, the first contact surface opens one of the first upper branch air outlet and the first lower branch air outlet and closes the other, and the second contact surface closes the exhaust port; when the first air distribution component is in the third working position, the first contact surface opens the first upper branch air outlet and the first lower branch air outlet simultaneously, and the exhaust port coincides with the clearance port.

2. The air duct system according to claim 1, characterized in that, The first sidewall includes a first arc segment, a second arc segment, a third arc segment, and a fourth arc segment connected sequentially along the circumferential direction of the first cylindrical cavity. The first upper air outlet is located on the first arc segment, and the first lower air outlet is located on the third arc segment. The arc length of the first arc segment is L1, the arc length of the second arc segment is L2, the arc length of the third arc segment is L3, the arc length of the fourth arc segment is L4, and the arc length of the second mating surface is L0, satisfying the following: L4>L2, L0>L1, L0>L2, L0>L3, and, L0≤L4, L0<L1+L2+L3.

3. The air duct system according to claim 1 or 2, characterized in that, When the first air distribution component is in the third working position, the air outlet area of ​​the exhaust port is greater than the sum of the air outlet areas of the first upper branch air outlet and the first lower branch air outlet.

4. The air duct system according to claim 1, characterized in that, The first air distribution component also has a sixth working position that opens one of the first upper branch air outlet and the first lower branch air outlet and closes the other, and opens the exhaust port. The first air distribution component can be controlled to switch between the first working position, the second working position, the third working position and the sixth working position.

5. The air duct system according to claim 4, characterized in that, The second bonding surface includes a first bonding portion and a second bonding portion. The first bonding portion and the second bonding portion are arranged along the radial direction of the first cylindrical cavity, and the rotation axis of the first air distribution component is located between the first bonding portion and the second bonding portion. The first bonding surface is connected to the first bonding portion. The clearance opening is provided in the second bonding portion. The bonding area between the first bonding portion and the first bottom wall is greater than the bonding area between the second bonding portion and the first bottom wall. When the first air distribution component is in the sixth working position, the first bonding surface opens one of the first upper branch air outlet and the first lower branch air outlet and closes the other, and the second bonding surface fully or partially opens the exhaust port.

6. The air duct system according to claim 1, characterized in that, The second air distribution cavity includes a second cylindrical cavity, the second upper branch air outlet and the second lower branch air outlet are spaced apart along the second side wall of the second cylindrical cavity in the circumferential direction, the second air distribution component is rotatably disposed on the second bottom wall in the axial direction of the second cylindrical cavity, the rotation axis of the second air distribution component is coaxial with the axis of the second cylindrical cavity, the second main air outlet is disposed opposite to the second bottom wall, and the second air distribution component includes a third contact surface, the third contact surface being contacted with the second side wall; When the second air distribution component is in the fourth working position, the third contact surface opens the second upper branch air outlet and the second lower branch air outlet simultaneously; when the second air distribution component is in the fifth working position, the third contact surface opens one of the second upper branch air outlet and the second lower branch air outlet and closes the other.

7. The air duct system according to claim 1, characterized in that, The first air distribution assembly further includes a first driving component, which is connected to the first air distribution element. The first driving component drives the first air distribution element to switch between the first working position, the second working position, and the third working position. The second air distribution assembly further includes a second driving component, which is connected to the second air distribution element. The second driving component drives the second air distribution element to switch between the fourth working position and the fifth working position.

8. A double-tube garment processing device, characterized in that, The double-tube garment processing equipment includes: The first garment processing tube and the second garment processing tube are arranged sequentially from top to bottom. Heat exchange components and fan components; The air duct system according to any one of claims 1-7, wherein the main drying air duct is disposed between the first clothing processing drum and the second clothing processing drum, the heat exchange component and the fan component are both disposed within the main drying air duct, the air outlet of the upper air inlet air duct is connected to the upper air inlet of the first clothing processing drum, the air outlet of the lower air inlet air duct is connected to the lower air inlet of the second clothing processing drum, the air inlet of the upper air outlet air duct is connected to the upper air outlet of the first clothing processing drum, and the air inlet of the lower air outlet air duct is connected to the lower air outlet of the second clothing processing drum; The drying process of the garment processing equipment in the dual-drum drying mode includes an internal circulation drying process and a dehumidification drying process; in the internal circulation drying process, the first air distribution component is in the first working position, and the second air distribution component is controlled to be in the fourth working position; in the dehumidification drying process, the first air distribution component is in the third working position, and the second air distribution component is in the fourth working position.

9. A drying method for a double-tube garment processing device, characterized in that, The drying method is used to control the twin-tube garment processing equipment according to claim 8, and the drying method includes: When the dual-drum clothing processing equipment is in dual-drum drying mode, the first air distribution component is controlled to be in the first working position, and the second air distribution component is controlled to be in the fourth working position. The inlet and outlet air temperatures of the main drying air duct are obtained. When the temperature difference between the inlet and outlet air temperatures is less than a set temperature difference, the first air distribution component is controlled to be in the third working position. The outlet air temperature of the exhaust port is obtained. If the outlet air temperature is lower than the set outlet air temperature, the first air distribution component is restored to the first working position.

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