Drying systems and clothing processing equipment

Abstract

The present application relates to the field of fans, and more specifically, to a drying system and clothing processing equipment. The drying system includes a drying duct and a double-suction fan, wherein the double-suction fan includes a volute and an impeller rotatably disposed within the volute. The volute is provided with an air vent, and when a drive motor drives the impeller to rotate, ambient air from the clothing processing tub can be introduced into the volute cavity through the air vent and mixed with the drying airflow entering the cavity through the volute air inlet. The introduction of ambient air into the drying duct increases the air volume in the drying duct, thereby increasing the air volume used to dry the clothes and improving the drying efficiency.

Description

Technical Field

[0001] The present application relates to the field of fans, and more specifically, to a drying system and clothing processing equipment. Background Art

[0002] Conventional electric-heated laundry washing and drying devices primarily utilize an air outlet at the rear drum, connected to a condenser. This allows hot, humid air to directly or indirectly come into contact with low-temperature water entering the condenser, exchanging heat and moisture to separate the condensed water into low-temperature, dry air. This low-temperature, dry air is then drawn through a fan and passed through a heating device to dry the clothes, achieving a drying and dehumidifying effect. This setup places a heavy load on the fan, resulting in low drying efficiency due to the accumulation of hot, humid air. Summary of the Invention

[0003] The present application provides a drying system and a clothes processing device to at least solve the technical problem of low drying efficiency.

[0004] According to a first aspect of an embodiment of the present application, a drying system is provided, comprising a clothes processing tub and a drying air duct connected between an air inlet and an air outlet of the clothes processing tub, wherein a drying airflow flows between the drying air duct and the clothes processing tub when the drying system is in operation;

[0005] The drying air duct includes a condensing section and a heating section, and a double suction fan is provided between the condensing section and the heating section;

[0006] The double-suction blower includes a volute, an impeller, and a drive motor that drives the impeller to rotate. The volute is provided with a volute air inlet, a volute air outlet, and an air vent, wherein the volute air inlet is used to allow the drying air inside the drying air duct to enter, the volute air outlet is used to allow the fluid in the double-suction blower to flow into the drying air duct, and the air vent is connected to the external environment of the clothes processing tub.

[0007] When the driving motor drives the impeller to rotate, the external ambient air of the clothing processing barrel can be introduced into the cavity of the volute through the air vent and mixed with the drying airflow entering the cavity through the volute air inlet. The mixed airflow is discharged from the volute air outlet and flows to the heating section.

[0008] Optionally, the drying duct is provided with a ventilation port in the condensing section, the ventilation port connects the drying duct with the external environment of the clothes processing tub, and the vent is connected to the ventilation port accordingly.

[0009] Optionally, a baffle is provided on one side of the double-suction fan close to the condensing section, and the baffle is located in the drying air duct and connected to the side wall of the drying air duct;

[0010] When the baffle moves to a preset first position, the drying air duct between the condensing section and the double-suction fan is blocked; when the baffle moves to a preset second position, the drying air duct between the condensing section and the double-suction fan is opened.

[0011] Optionally, the second position includes a plurality of sub-positions, and when the baffle is located at different sub-positions, the opening degree of the drying air duct between the condensing section and the double-suction fan is different.

[0012] Optionally, the double-suction blower is provided with a damper for opening and closing the vent.

[0013] Optionally, the drying system is provided with a fresh air mode. In the fresh air mode, the vent introduces external fresh air into the double-suction fan and mixes it with the drying airflow entering the double-suction fan from the condensing section. The mixed airflow flows out from the volute air outlet and flows to the heating section.

[0014] Optionally, a condensate inlet pipe is provided on the drying air duct between the condensing section and the double-suction fan, an electric heating device is installed in the heating section, and a dehumidification device and a steam device are installed in the drying air duct in the direction of the heating section away from the double-suction fan.

[0015] Optionally, the double-suction fan includes a volute, an impeller rotatably arranged in the volute, and a drive motor capable of driving the impeller to rotate; the impeller includes a first blade structure and a second blade structure, the first blade structure and the second blade structure are connected side by side along the axial direction of the impeller and are synchronously driven by the drive motor; wherein the first blade structure is arranged near the air vent for introducing the fluid outside the drying air duct into the double-suction fan, and the second blade structure is arranged near the air inlet for introducing the fluid inside the drying air duct into the double-suction fan.

[0016] Optionally, the impeller is provided with an annular fan blade baffle, and the first fan blade structure and the second fan blade structure are fixed on both sides of the fan blade baffle; the first fan blade structure includes a plurality of first blades; the second fan blade structure includes a plurality of second blades; the plurality of first blades are arranged in a ring shape and are fixedly connected to the first surface of the fan blade baffle at equal intervals; the plurality of second blades are arranged in a ring shape and are fixedly connected to the second surface of the fan blade baffle at equal intervals; the ring formed by the plurality of first blades is coaxial with the ring formed by the plurality of second blades; the length of the first blade is less than the length of the second blade; the first blade and the second blade are arranged at intervals in the circumferential direction of the impeller shaft, and the first fan blade structure is arranged close to the opening and its fan blades have first blade parameters adapted to the air inlet of the opening, and the second fan blade structure is arranged close to the air inlet and its fan blades have second blade parameters adapted to the air inlet of the air inlet.

[0017] According to a second aspect of an embodiment of the present application, a clothing processing device is provided, comprising the drying system described in the first aspect above.

[0018] Optionally, the laundry processing device further includes a controller;

[0019] The controller is configured to:

[0020] Get clothing processing parameters;

[0021] The amount of fluid entering the double suction blower from the vent is changed according to the laundry treatment parameters.

[0022] In the embodiment of the present application, after the dual-suction blower is installed in the drying duct, the vent of the dual-suction blower can communicate with the external environment of the clothes processing tub. When the impeller rotates, air from the external environment is drawn into the drying duct, increasing the air volume in the drying duct, thereby increasing the air volume used to dry the clothes and improving drying efficiency. In addition, the air introduced into the drying duct mixes with the existing drying airflow in the drying duct, reducing the load on the blower, while also helping to increase the wind speed and improve the moisture-carrying capacity of the drying duct, further improving drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of a double-suction blower in one embodiment of the present application.

[0024] Figure 2 It is a side view of a double-suction blower in one embodiment of the present application.

[0025] Figure 3 This is a schematic diagram of the impeller of a double-suction blower in one embodiment of the present application.

[0026] Figure 4 This is a schematic diagram of an air duct in which a double-suction blower is installed in a drying system in one embodiment of the present application.

[0027] Figure 5 This is a schematic diagram of a clothing processing device in one embodiment of the present application.

[0028] Figure 6 It is a schematic diagram of the overall structure of the drying system in one embodiment of the present application.

[0029] Explanation of reference numbers: 1. Double-suction fan; 2. Drive mechanism cover; 21. Guide ring; 3. Impeller; 31. First fan blade structure; 32. Second fan blade structure; 4. Fan blade partition; 5. Box body; 6. Outer cylinder; 7. Inner cylinder; 8. Condensation air duct; 9. Condensate inlet pipe; 10. Electric heating device; 11. Dehumidification device; 12. Steam device; 13. Drying air duct. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0031] like Figure 1-6 As shown, an embodiment of the present application provides a drying system, comprising a clothes processing tub and a drying air duct 13 connected between an air inlet and an air outlet of the clothes processing tub, wherein a drying air flow flows between the drying air duct 13 and the clothes processing tub when the drying system is in operation;

[0032] The drying air duct 13 includes a condensing section and a heating section, and a double suction fan 1 is provided between the condensing section and the heating section;

[0033] The double-suction blower 1 includes a volute, an impeller 3, and a drive motor that drives the impeller 3 to rotate. The volute is provided with a volute air inlet, a volute air outlet, and a vent, wherein the volute air inlet is used to allow the drying air inside the drying air duct 13 to enter, the volute air outlet is used to allow the fluid in the double-suction blower 1 to flow into the drying air duct 13, and the vent is connected to the external environment of the clothes processing tub.

[0034] When the driving motor drives the impeller 3 to rotate, the external ambient air of the clothing processing barrel can be introduced into the cavity of the volute through the air vent and mixed with the drying airflow entering the cavity through the volute air inlet. The mixed airflow is discharged from the volute air outlet and flows to the heating section.

[0035] In one embodiment, the impeller 3 is rotatably connected to the volute via a bearing, i.e., the impeller 3 and the volute are capable of relative motion, with the impeller 3 rotating but the volute not rotating. In another embodiment, the impeller 3 is not connected to the volute and is merely located within the volute, where it rotates by connecting to a drive mechanism. This embodiment does not specifically limit whether or how the impeller 3 is connected to the volute; it is intended that the impeller 3 be located within the volute.

[0036] After the double suction fan 1 is started, the drying air flow in the drying air duct 13 flows from the condensing section to the heating section, and then moves into the clothes processing barrel. After contacting the clothes in the clothes processing barrel, it moves to the condensing section again, and the cycle repeats.

[0037] After the dual-suction fan 1 is installed in the drying duct 13 through the above steps, the air vent of the dual-suction fan 1 can communicate with the external environment of the laundry tub. When the impeller 3 rotates, air from the external environment is introduced into the drying duct 13, thereby increasing the air volume in the drying duct 13 and the air volume used to dry the clothes, thereby improving the drying efficiency. In addition, the air introduced into the drying duct 13 is mixed with the existing dry air flow in the drying duct 13, reducing the load on the fan, while also helping to increase the wind speed and improve the moisture-carrying capacity of the drying duct 13, further improving the drying efficiency.

[0038] In another embodiment of the present application, the drying duct 13 is provided with a ventilation port in the condensation section, and the ventilation port connects the drying duct 13 with the external environment of the clothing processing barrel, and the vent is connected to the ventilation port accordingly.

[0039] The shape and size of the ventilation opening and vent are not specifically limited in this embodiment; the ventilation opening is intended to allow air from outside the drying duct 13, that is, from the environment outside the laundry tub, to enter the drying duct 13. To increase the amount of air entering the drying duct 13, the dual-suction blower 1 is provided with a vent corresponding to and communicating with the ventilation opening. This allows the impeller 3 in the dual-suction blower 1 to draw air outside the ventilation opening into the volute during rotation, where it mixes with the drying airflow.

[0040] Through the above steps, the ventilation port is opened to facilitate the installation of the double-suction blower 1 , ensuring that the air outside the drying duct 13 can enter the drying duct 13 .

[0041] In another embodiment of the present application, a baffle is provided on one side of the double-suction fan 1 close to the condensing section, and the baffle is located in the drying air duct 13 and connected to the side wall of the drying air duct 13;

[0042] When the baffle moves to the preset first position, the drying air duct 13 between the condensing section and the double-suction fan 1 is blocked; when the baffle moves to the preset second position, the drying air duct 13 between the condensing section and the double-suction fan 1 is opened.

[0043] In one embodiment, the baffle has the function of blocking the drying air duct 13, so that when the baffle is in the first position, no drying airflow flows into the volute air inlet of the double-suction fan 1, and the impeller 3 completely introduces the air from the outside of the drying air duct 13 into the drying air duct 13, so that the drying air duct 13 is full of fresh air.

[0044] In order to balance the air pressure in the drying duct 13 and the clothes processing tub, the airflow after passing through the clothes processing tub is discharged through other discharge paths, which is not specifically limited in this embodiment.

[0045] Through the above steps, by setting the baffle, it is easy to control the fresh air that continuously enters the external environment into the drying air duct 13, and no longer use the circulating airflow, thereby meeting the use requirements of the drying system.

[0046] In another embodiment of the present application, the second position includes a plurality of sub-positions, and when the baffle is located at different sub-positions, the opening of the drying air duct 13 between the condensing section and the double-suction fan 1 is different.

[0047] In one embodiment, different opening degrees result in different amounts of air entering the external environment, which helps to adjust the amount of fresh air entering the drying air duct 13.

[0048] In another embodiment of the present application, the double-suction blower 1 is provided with a damper for opening and closing the vent.

[0049] Specifically, this embodiment does not specifically limit the installation method and structure of the damper, as long as the damper can open and close the vent. For example, the damper is rotatably connected to the volute, and when the vent needs to be closed, the damper is rotated to close the vent.

[0050] Through the above steps, by setting the air door, when there is no need to introduce air from the external environment into the drying air duct 13, the double-suction fan 1 only stirs the original drying air flow in the drying air duct 13.

[0051] In another embodiment of the present application, the drying system is provided with a fresh air mode. In the fresh air mode, the vent introduces external fresh air into the double-suction fan 1 and mixes it with the drying airflow entering the double-suction fan 1 from the condensing section. The mixed airflow flows out from the volute air outlet and flows to the heating section.

[0052] In another embodiment of the present application, a condensate inlet pipe 9 is provided on the drying air duct 13 between the condensation section and the double-suction fan 1, an electric heating device 10 is installed in the heating section, and a dehumidification device 11 and a steam device 12 are installed in the drying air duct 13 in the direction of the heating section away from the double-suction fan 1.

[0053] In one embodiment, the condensate inlet pipe 9 facilitates supplying condensate to the condensation section to meet condensation requirements and reduce the moisture content of the dry airflow within the drying air duct 13. The dry airflow is heated after passing through the electric heating device 10. The dehumidification device 11 facilitates reducing the humidity of the dry airflow, while the steam device 12 facilitates increasing the humidity of the dry airflow.

[0054] Through the above steps, the structure is simple, and the dehumidification device 11 and the steam device 12 are used to meet different usage requirements, thereby improving the functionality and usage experience of the drying system.

[0055] In another embodiment of the present application, the double-suction fan 1 includes a volute, an impeller 3 rotatably arranged in the volute, and a drive motor capable of driving the impeller 3 to rotate; the impeller 3 includes a first blade structure 31 and a second blade structure 32, and the first blade structure 31 and the second blade structure 32 are connected side by side along the axial direction of the impeller 3 and are synchronously driven by the drive motor; wherein the first blade structure 31 is arranged near the air vent for introducing the fluid outside the drying air duct 13 into the double-suction fan 1, and the second blade structure 32 is arranged near the air inlet for introducing the fluid inside the drying air duct 13 into the double-suction fan 1.

[0056] In another embodiment of the present application, the impeller 3 is provided with an annular fan blade partition 4, and the first fan blade structure 31 and the second fan blade structure 32 are fixed on both sides of the fan blade partition 4; the first fan blade structure 31 includes a plurality of first blades; the second fan blade structure 32 includes a plurality of second blades; the plurality of first blades are arranged in a ring shape and are fixedly connected to the first surface of the fan blade partition 4 at equal intervals; the plurality of second blades are arranged in a ring shape and are fixedly connected to the second surface of the fan blade partition 4 at equal intervals; the ring formed by the plurality of first blades is coaxial with the ring formed by the plurality of second blades; the length of the first blade is less than the length of the second blade; the first blade and the second blade are arranged at intervals in the circumferential direction of the impeller 3 rotating shaft, and the first fan blade structure 31 is arranged close to the opening and its fan blades have first blade parameters adapted to the air inlet of the opening, and the second fan blade structure 32 is arranged close to the air inlet and its fan blades have second blade parameters adapted to the air inlet of the air inlet.

[0057] In one embodiment, the wind blade parameters refer to blade length, twist angle, airfoil, blade area, and blade chord length. The parameters of the blade include blade length, twist angle, airfoil, blade area, and blade chord length. These indices must be used in the operation and maintenance of wind farms. Blade length refers to the length of the blade's skeleton. Blade chord length: the chord length of the airfoil in each radial section of the blade. The chord length of the airfoil at the root section of the blade is called the root chord, and the chord length of the airfoil at the tip section of the blade is called the tip chord. The twist angle refers to the blade angle. The blade angle (propellerbladeangle), also known as the twist angle of the blade, refers to the angle between the propeller chord line and the propeller rotation plane. It changes with the radius, and its change law is the most important factor affecting the working performance of the propeller.

[0058] The impeller 3 is disposed within the volute. In one embodiment, the impeller 3 is rotatably connected to the volute via a bearing, i.e., the impeller 3 and the volute are capable of relative motion; the impeller 3 rotates, but the volute does not. In another embodiment, the impeller 3 is not connected to the volute but is simply located within the volute, where it rotates by connecting to a drive mechanism. This embodiment does not specifically limit whether or how the impeller 3 is connected to the volute; the intent is that the impeller 3 is located within the volute.

[0059] The rotation of the first and second blade structures 31 and 32 guides the air, forming a flow and forcing it to move in a fixed direction. Because the volute has vents on the wall opposite the first blade structure 31, the rotation of the first blade structure 31 draws air outside the vents into the volute, creating fresh air.

[0060] In one embodiment, the first fan blade structure 31 and the second fan blade structure 32 are both fixedly connected to the fan blade partition 4. In one embodiment, the fixed connection is achieved by welding; in other embodiments, the fixed connection is achieved by gluing or interference fit, etc., which is not specifically limited in this embodiment.

[0061] In one embodiment, the number of first blades may be the same as or different from the number of second blades, and this embodiment does not impose any specific limitation thereon. Since the number of blades affects the amount of air guided, if a large amount of fresh air is actually required, the number of first blades may be greater than the number of second blades; if a small amount of fresh air is actually required, the number of first blades may be less than the number of second blades.

[0062] In one embodiment, the ring is a circular ring, that is, a ring with a cross section that is a prototype of a ring. In other embodiments, the ring is a rectangular or irregular shape, as long as it is a closed and hollow shape.

[0063] Specifically, in one embodiment, the length of the first blade is between one half and one tenth of the length of the second blade, and preferably, the length of the first blade is one quarter of the length of the second blade.

[0064] In another embodiment of the present application, the bending angle of the first blade is different from the bending angle of the second blade; the airflow inlet direction and the airflow outlet direction of the first blade are different from those of the second blade.

[0065] Among them, the bending angle refers to the curvature of the blade. Different bending angles have different air-guiding capabilities. The air-guiding capabilities of the first blade and the second blade are different, which is convenient for controlling the difference between the amount of fresh air introduced and the flow of air in the air duct, thereby controlling the drying effect.

[0066] The airflow inlet direction and the airflow outlet direction can be adjusted by changing the orientation of the blades.

[0067] Through the above steps, the difference in the amount of air guided between the first blade structure 3131 and the second blade structure 32 can be easily controlled by utilizing the different bending angles and directions, thereby making the double-suction fan 1 more in line with usage requirements.

[0068] In another embodiment of the present application, the difference between the torsion angle in the first wind blade parameter and the torsion angle in the second wind blade parameter is less than 30 degrees.

[0069] Specifically, in one embodiment, the twist angle of the second blade is preferably 45 degrees, the twist angle of the first blade is smaller than the twist angle of the second blade, and the difference is less than 30 degrees.

[0070] As described above, the twist angle affects the amount of introduced fluid, and by limiting the difference between the twist angles of the first blade and the second blade, it is easy to ensure that the fluid enters the volute stably.

[0071] In another embodiment of the present application, a drive mechanism cover 2 is provided on the wall of the volute opposite to the first fan blade structure 31;

[0072] The driving mechanism cover 2 is connected to the volute through a plurality of connecting arms;

[0073] Gaps are formed between the plurality of connecting arms, and the vent hole is communicated with the outside of the volute through the gaps.

[0074] In one embodiment, a drive mechanism cover 2 is provided on the volute. The drive mechanism cover 2 includes multiple connecting arms that are connected to the volute by snapping together, thereby securing the drive mechanism cover 2 to the volute. Gaps are formed between adjacent connecting arms. These gaps communicate with the vents of the volute and with the outside of the air duct where the dual-suction blower 1 is located, thus ensuring that fresh air does not enter the duct.

[0075] It should be noted that the number and shape of the connecting arms and the connection method with the volute are not specifically limited in this embodiment.

[0076] Through the above steps, the driving mechanism cover 2 is connected to the volute, which makes it easy to install the double-suction blower 1 using the driving mechanism cover 2, so that the double-suction blower 1 is easy to install and has high stability.

[0077] In another embodiment of the present application, a guide ring 21 connected to the volute is provided at the vent hole of the volute.

[0078] In one embodiment, the guide ring 21 is annular, and the end surface of the guide ring 21 away from the first blade structure 31 is located at a higher height than the surface of the volute. In other words, this embodiment does not limit the specific shape of the guide ring 21; the purpose is to use the guide ring 21 to guide external air into the volute to form fresh air.

[0079] Through the above steps, the guide ring 21 enables the first fan blade structure 31 to rotate, thereby introducing fresh air into the interior of the volute, and the amount and efficiency of the introduced fresh air are improved.

[0080] An embodiment of the present application also provides a clothing processing device, including the drying system described above.

[0081] In one embodiment, the laundry processing device further comprises a controller;

[0082] The controller is configured to:

[0083] Get clothing processing parameters;

[0084] The amount of fluid entering the double suction blower from the vent is changed according to the laundry treatment parameters.

[0085] In one embodiment, the laundry treatment parameter is the laundry treatment stage. Specifically, when the laundry treatment stage is the drying stage, the fluid volume is gradually increased; when the laundry treatment stage is the care stage, the fluid volume is adjusted to the maximum. In another embodiment, the laundry treatment parameter is the laundry temperature. When the temperature exceeds a preset temperature threshold, the fluid volume is increased.

[0086] Specifically, the fluid volume may be changed by changing the opening of the vent or by adjusting the rotation speed of the double-suction fan, which is not specifically limited in this embodiment.

[0087] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0088] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0089] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A drying system, characterized in that: It includes a clothes processing tub and a drying air duct connected between the air inlet and the air outlet of the clothes processing tub, wherein a drying airflow flows between the drying air duct and the clothes processing tub when the drying system is working; The drying air duct includes a condensing section and a heating section, and a double suction fan is provided between the condensing section and the heating section; The double-suction blower includes a volute, an impeller, and a drive motor that drives the impeller to rotate. The volute is provided with a volute air inlet, a volute air outlet, and an air vent, wherein the volute air inlet is used to allow the drying air inside the drying air duct to enter, the volute air outlet is used to allow the fluid in the double-suction blower to flow into the drying air duct, and the air vent is connected to the external environment of the clothes processing tub. When the driving motor drives the impeller to rotate, the external ambient air of the laundry treatment tub can be introduced into the cavity of the volute through the vent and mixed with the drying airflow entering the cavity through the volute air inlet. The mixed airflow is discharged from the volute air outlet and flows to the heating section. The double-suction fan includes a volute, an impeller rotatably arranged in the volute, and a drive motor capable of driving the impeller to rotate; the impeller includes a first fan blade structure and a second fan blade structure, the first fan blade structure and the second fan blade structure are connected side by side along the axial direction of the impeller and are synchronously driven by the drive motor; the first fan blade structure is arranged near the air vent for introducing the fluid outside the drying air duct into the double-suction fan, and the second fan blade structure is arranged near the air inlet of the volute for introducing the fluid inside the drying air duct into the double-suction fan; The impeller is provided with an annular fan blade partition, and the first fan blade structure and the second fan blade structure are fixed on both sides of the fan blade partition; the first fan blade structure includes a plurality of first blades; the second fan blade structure includes a plurality of second blades; the plurality of first blades are arranged in an annular shape and fixedly connected to the first surface of the fan blade partition at equal intervals; the plurality of second blades are arranged in an annular shape and fixedly connected to the second surface of the fan blade partition at equal intervals; the annular shape formed by the plurality of first blades is coaxial with the annular shape formed by the plurality of second blades; The length of the first blade is smaller than the length of the second blade; The first blades and the second blades are arranged at intervals in the circumferential direction of the rotating shaft of the impeller, and the first blade structure is arranged close to the air vent and its blades have first blade parameters adapted to the air intake of the air vent, and the second blade structure is arranged close to the volute air inlet and its blades have second blade parameters adapted to the air intake of the volute air inlet.

2. The drying system according to claim 1, characterized in that: The drying air duct is provided with a ventilation port in the condensing section, and the ventilation port connects the drying air duct with the external environment of the clothes processing barrel, and the vent is correspondingly connected to the ventilation port.

3. The drying system according to claim 1, characterized in that: A baffle is provided on one side of the double-suction fan close to the condensing section, and the baffle is located in the drying air duct and connected to the side wall of the drying air duct; When the baffle moves to the preset first position, the drying air duct between the condensing section and the double-suction fan is blocked; When the baffle moves to the preset second position, the drying air duct between the condensing section and the double-suction fan is connected.

4. The drying system according to claim 3, characterized in that: The second position includes a plurality of sub-positions. When the baffle is located at different sub-positions, the opening degree of the drying air duct between the condensing section and the double-suction fan is different.

5. The drying system according to any one of claims 1 to 4, characterized in that: The double-suction blower is provided with a damper for opening and closing the vent.

6. The drying system according to any one of claims 1 to 4, characterized in that: The drying system is provided with a fresh air mode. In the fresh air mode, the vent introduces external fresh air into the double-suction fan and mixes it with the drying airflow entering the double-suction fan from the condensing section. The mixed airflow flows out from the volute air outlet and flows to the heating section.

7. The drying system according to any one of claims 1 to 4, characterized in that: A condensate inlet pipe is provided on the drying air duct between the condensing section and the double-suction fan, an electric heating device is installed in the heating section, and a dehumidification device and a steam device are installed in the drying air duct in the direction of the heating section away from the double-suction fan.

8. A clothes processing device, characterized in that: The drying system comprises the drying system according to any one of claims 1 to 7.

9. The clothes processing device according to claim 8, characterized in that: The laundry processing device further includes a controller; The controller is configured to: Get clothing processing parameters; The amount of fluid entering the double suction blower from the vent is changed according to the laundry treatment parameter.

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