A drying system, garment handling equipment and drying control method

Abstract

This invention provides a drying system, a garment processing device, and a drying control method. The drying system includes a drying duct and a drying fan. The drying duct includes a first duct section and a second duct section. The drying fan has a fan blade cavity. The side wall of the fan blade cavity has a fan blade cavity inlet communicating with the first duct section, a fan blade cavity outlet communicating with the second duct section, and an opening communicating with the external environment where the drying fan is located. A first fan blade and a second fan blade are rotatably arranged inside the fan blade cavity. The first fan blade and the second fan blade are arranged side by side and coaxially along the axial direction of the fan blade cavity. The outer cylinder is arranged in an installation cavity, and the opening connects the ventilation fan cavity and the installation cavity. Fresh air in the installation cavity can enter the fan blade cavity through the opening and mix with the drying airflow flowing through the fan blade cavity, reducing the humidity of the drying airflow and improving the quality of the drying airflow; accelerating the evaporation of moisture from the garments, shortening the drying time, and improving the drying efficiency; reducing the load on the drying fan and saving energy.

Description

Technical Field

[0001] This invention belongs to the field of drying technology, and particularly relates to a drying system, clothing processing equipment and drying control method. Background Technology

[0002] In existing technologies, the drying methods of clothing processing equipment with drying functions include water condensation drying, air condensation drying, and heat pump drying. For water condensation drying, the drying system includes a condensation duct and a heating duct. The hot and humid drying airflow enters the condensation duct and comes into direct or indirect contact with the condensate water to complete heat exchange, thereby transforming into a dry and cold drying airflow. Then, it enters the heating duct through a fan and is transformed into a high-temperature and dry drying airflow under the heating action of the heating element. However, the drying airflow only circulates within the drying duct, and the condensation duct has a poor dehumidification effect on the drying airflow, resulting in a long drying time and low drying efficiency. Summary of the Invention

[0003] In view of this, the present invention provides a drying system, a garment processing device, and a drying control method to solve the problems of poor dehumidification effect, long drying time, and low drying efficiency of the condenser duct in the prior art.

[0004] This invention provides a drying system for clothing processing equipment, the drying system comprising:

[0005] The drying air duct includes a first air duct section and a second air duct section;

[0006] A drying fan has a fan blade cavity. The side wall of the fan blade cavity has a fan blade cavity inlet, a fan blade cavity outlet, and an opening that communicate with the fan blade cavity. The fan blade cavity inlet is connected to a first air duct section, and the fan blade cavity outlet is connected to a second air duct section. The opening is connected to the external environment where the drying fan is located, and the opening is used to introduce fresh air from the external environment into the fan blade cavity.

[0007] Further optionally, the drying fan is a centrifugal fan; an air inlet is formed on one axial sidewall of the fan blade cavity, and an opening is formed on the other axial sidewall of the fan blade cavity; an air outlet is formed on the radial sidewall of the fan blade cavity.

[0008] Further optionally, the drying fan also includes a first fan blade and a second fan blade rotatably disposed within the fan blade cavity, the first fan blade and the second fan blade being arranged side by side and coaxially along the axial direction of the fan blade cavity; the first fan blade is closer to the opening relative to the second fan blade, and the second fan blade is closer to the air inlet of the fan blade cavity relative to the first fan blade.

[0009] Further optionally, the axial length of the first fan blade is h1, the axial length of the second fan blade is h2, and k = h1 / h2; satisfying: 0.7 ≤ k ≤ 1; and / or,

[0010] The radial length of the first fan blade is r1, the radial length of the second fan blade is r2, and p = r1 / r2; satisfying: 0.9 ≤ p ≤ 1.1; and / or,

[0011] The first wind turbine blade has n1 blades, the second wind turbine blade has n2 blades, and Δn = n2 - n1; satisfying: 0 ≤ Δn ≤ 5.

[0012] Further optionally, the drying fan further includes a separator, the separator comprising a support portion and a separator portion; the support portion is disposed between the first fan blade and the second fan blade, and the separator portion is disposed on the support portion;

[0013] The partition is a curved structure and protrudes towards the side of the second blade away from the first blade; the partition separates the inner side of the first blade and the inner side of the second blade.

[0014] Alternatively, the support portion is an annular plate structure, and the partition portion is a hemispherical shell structure.

[0015] Further optionally, the drying fan includes a first volute, a second volute, and a fan motor, wherein the first volute and the second volute are fastened together to form the fan blade cavity; the first volute has an opening formed on its axial wall away from the second volute, and a motor bracket is provided at the opening;

[0016] The partition is configured to form a partition cavity, and a shaft hole is formed on the side wall of the partition cavity away from the first fan blade; the fan blade motor includes a motor body and an output shaft, one end of the motor body is mounted on the motor bracket, and the other end of the motor body passes through the inner side of the first fan blade and enters the partition cavity; the output shaft passes through the shaft hole and is drivenly connected to the partition.

[0017] There are gaps between the sidewall of the opening and the motor body, and between the blade of the first fan blade and the motor body.

[0018] The present invention also provides a garment processing device, comprising a housing, an outer cylinder, an inner cylinder, and a drying system as described above; the housing forms an installation cavity, and the outer cylinder is disposed within the installation cavity; a drying air inlet is formed at the opening of the outer cylinder, and a drying air outlet is formed on the cylinder wall of the outer cylinder; the inner cylinder is rotatably disposed within the outer cylinder, and the inner cylinder is used to hold garments; the drying air inlet, the second air duct section, the fan blade cavity, the first air duct section, and the drying air outlet are sequentially connected; the opening connects the fan blade cavity and the installation cavity, and the opening can be controlled to open or close.

[0019] Further optionally, the drying air outlet includes a first drying air outlet and a second drying air outlet, with the first drying air outlet located above the second drying air outlet; the first air duct section includes a main condensing section, a condensing branch section A, and a condensing branch section B, with the two air inlets of the main condensing section connected to the air outlets of the condensing branch section A and B, respectively; the air outlet of the main condensing section is connected to the air inlet of the fan blade cavity; the air inlet of the condensing branch section A is connected to the first drying air outlet, and the air inlet of the condensing branch section B is connected to the second drying air outlet;

[0020] An inner water inlet valve is provided on the peripheral wall of the outer cylinder; a condensation zone is formed between the inner side of the rear wall of the outer cylinder and the inner side of the peripheral wall of the outer cylinder, and the condensation zone is connected to both the first drying air outlet and the inner water inlet valve.

[0021] The side wall of the B condensing section is provided with an external water inlet valve, and the outer side of the rear wall of the outer cylinder forms the B condensing section, which is connected to the external water inlet valve.

[0022] Optionally, the clothing treatment device further includes a dehumidifier box, which is disposed at the opening and forms a dehumidifier cavity; the dehumidifier cavity has a dehumidifier cavity inlet and a dehumidifier cavity outlet communicating with the dehumidifier cavity, the dehumidifier cavity inlet communicating with the mounting cavity, and the dehumidifier cavity outlet communicating with the opening; the dehumidifier cavity inlet can be controlled to open or close.

[0023] The present invention also provides a drying control method for a garment processing device, wherein the garment processing device is the garment processing device described above; the garment processing device is provided with a drying process, the drying process including a cooling stage; when the garment processing device is in the cooling stage, the drying control method includes:

[0024] Calculate the relative humidity of the current humidity of the air inside the mounting cavity relative to the current humidity of the air inside the inner cylinder;

[0025] Compare the relative humidity with the first preset humidity;

[0026] The opening is controlled to open or close based on the comparison between the relative humidity and the first preset humidity.

[0027] Further optionally, controlling the opening or closing of the opening based on the comparison result of the relative humidity and the preset humidity includes:

[0028] When the relative humidity is less than a first preset humidity, the opening is controlled to open;

[0029] When the relative humidity is greater than or equal to a first preset humidity, the opening is controlled to close.

[0030] The present invention also provides a drying control method for a garment processing device, wherein the garment processing device is the garment processing device described above; the garment processing device is provided with a drying process, the drying process including a cooling stage; when the garment processing device is in the cooling stage, the opening is opened, and the drying control method includes:

[0031] Calculate the current humidity of the fresh air flowing through the opening;

[0032] Compare the current humidity of the fresh air with the second preset humidity;

[0033] When the current humidity of the fresh air is greater than or equal to the second preset humidity, the dehumidification chamber inlet is opened.

[0034] If the current humidity of the fresh air is less than the second preset humidity, the dehumidification chamber inlet is closed.

[0035] Compared with the prior art, the main advantages of the present invention are as follows:

[0036] The fan blade cavity connects the first air duct section and the second air duct section. An opening is formed on the side wall of the fan blade cavity, which connects the ventilation fan cavity to the external environment where the drying fan is located. Fresh air from the external environment can enter the fan blade cavity through the opening and mix with the drying airflow flowing through the fan blade cavity, reducing the humidity of the drying airflow and improving the quality of the drying airflow; accelerating the evaporation of moisture from the clothes, shortening the drying time, improving drying efficiency; reducing the load on the drying fan, and saving energy. Attached Figure Description

[0037] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0038] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0039] Figure 1 This is a schematic diagram of the structure of an embodiment of the drying system provided by the present invention;

[0040] Figure 2a and Figure 2b This is a schematic diagram of the structure of an embodiment of the drying fan provided by the present invention;

[0041] Figure 3 A schematic diagram of the assembly structure of the first and second wind turbine blades provided by the present invention;

[0042] Figure 4 This is a schematic diagram of an embodiment of the clothing processing equipment provided by the present invention;

[0043] Figure 5 This is a schematic flowchart of an embodiment of the drying control method for the clothing processing equipment provided by the present invention;

[0044] In the picture:

[0045] 11-First air duct section; 111-Main condenser section; 112-A-Condenser branch section; 113-B-Condenser branch section; 12-Second air duct section;

[0046] 2-Drying fan; 21-First volute; 211-Opening; 22-Second volute; 221-Air inlet of fan blade cavity; 23-Fan blade cavity; 241-First fan blade; 242-Second fan blade; 25-Fan blade motor; 251-Motor body; 252-Output shaft; 26-Motor bracket; 27-Separator; 271-Support part; 272-Separator part; 273-Separator cavity;

[0047] 3-Clothing processing equipment; 31-Box body; 311-Box body exhaust port; 32-Outer cylinder; 321-Drying air inlet; 322-First drying air outlet; 323-Second drying air outlet; 324-Outer cylinder exhaust port; 325-Outer cylinder drain port; 326-Condensation zone; 33-Inner cylinder; 34-Exhaust pipe; 35-Heating element; 36-Outer cylinder drain pipe. Detailed Implementation

[0048] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0050] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0051] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0052] In existing garment processing equipment that uses water-cooled drying, the hot and humid drying airflow enters the condenser duct and comes into direct or indirect contact with the condensate water to complete heat exchange, and then transforms into a dry and cold drying airflow; then it enters the heating duct through the fan, and under the heating action of the heating element, it is transformed into a high-temperature dry and hot drying airflow; however, the drying airflow only circulates within the drying duct, the condenser duct has a poor dehumidification effect on the drying airflow, the drying time is long, and the drying efficiency is low.

[0053] This invention creatively provides a drying system for clothing processing equipment. The drying system includes a drying duct and a drying fan. The drying duct includes a first duct section and a second duct section. The drying fan has a fan blade cavity. The side wall of the fan blade cavity has a fan blade cavity inlet communicating with the first duct section, a fan blade cavity outlet communicating with the second duct section, and an opening communicating with the external environment where the drying fan is located. Fresh air from the external environment can enter the fan blade cavity through the opening and mix with the drying airflow flowing through the fan blade cavity, reducing the humidity of the drying airflow and improving the quality of the drying airflow; accelerating the evaporation of moisture from the clothes, shortening the drying time, and improving the drying efficiency; reducing the load on the drying fan and saving energy.

[0054] Example 1

[0055] <Drying System>

[0056] like Figures 1 to 3 As shown, this embodiment provides a drying system for clothing processing equipment 3. The drying system includes:

[0057] The drying air duct includes a first air duct section 11 and a second air duct section 12. Specifically, the first air duct section 11 is a condensing air duct section, in which a condenser or condensate water can flow. When the hot and humid drying airflow flows through the first air duct section 11, it exchanges heat with the condenser or condensate water and is then transformed into a dry and cold drying airflow. The second air duct section 12 is a heating air duct section, in which a heating element 35 is installed. The dry and cold drying airflow flowing through the second air duct section 12 is transformed into a high-temperature drying airflow under the heating action of the heating element 35.

[0058] The drying fan 2 has a fan blade cavity 23. The side wall of the fan blade cavity 23 has a fan blade cavity inlet 221, a fan blade cavity outlet, and an opening 211 that are connected to the fan blade cavity 23. The fan blade cavity inlet 221 is connected to the first air duct section 11, and the fan blade cavity outlet is connected to the second air duct section 12. A fan blade is rotatably installed inside the fan blade cavity 23. Under the action of the fan blade, the drying airflow in the first air duct section 11 can enter the fan blade cavity and then enter the second air duct section 12 through the fan blade cavity outlet. The opening 211 is connected to the external environment where the drying fan is located and is used to introduce fresh air from the external environment into the fan blade cavity 23. The fresh air enters the fan blade cavity 23 through the opening 211 and mixes with the drying airflow flowing through the fan blade cavity 23, which improves the quality of the drying airflow, reduces the humidity of the drying airflow, increases the evaporation rate of moisture in the clothes, and shortens the drying time.

[0059] To address the issue of high resistance to the introduction of fresh air due to the unreasonable placement of the opening 211, this embodiment proposes that the drying fan 2 is a centrifugal fan; an air inlet 221 is formed on one axial sidewall of the fan blade cavity 23, and an opening 211 is formed on the other axial sidewall of the fan blade cavity 23; an air outlet is formed on the radial sidewall of the fan blade cavity 23.

[0060] Fresh air and drying airflow enter the fan blade cavity 23 from different directions and mix thoroughly, reducing the humidity of the drying airflow and increasing its flow rate.

[0061] To address the issue of insufficient fresh air flow, this embodiment proposes that the fan blades include a first fan blade 241 and a second fan blade 242 rotatably disposed within the fan blade cavity 23. The first fan blade 241 and the second fan blade 242 are arranged side by side and coaxially along the axial direction of the fan blade cavity 23. The first fan blade 241 and the second fan blade 242 rotate synchronously, with the first fan blade 241 being closer to the opening 211 relative to the second fan blade 242. The rotation of the first fan blade 241 allows fresh air to enter the fan blade cavity 23 through the opening 211. The second fan blade 242 is closer to the air inlet 221 of the fan blade cavity relative to the first fan blade 241. The rotation of the second fan blade 242 allows the drying airflow to enter the fan blade cavity 23. The fresh air and the drying airflow mix within the fan blade cavity 23.

[0062] Furthermore, the axial length of the first fan blade 241 is h1, the axial length of the second fan blade 242 is h2, and k = h1 / h2; satisfying: 0.7 ≤ k ≤ 1; preferably, k < 1, to ensure that the flow rate of the fresh air is less than the flow rate of the drying airflow, and to avoid the introduced fresh air having a significant impact on the drying airflow.

[0063] It should be noted that both h1 and h2 can be adjusted according to the actual situation.

[0064] To address the issue of mutual interference between fresh air and drying airflow when the first fan blade 241 and the second fan blade 242 rotate synchronously, this embodiment proposes that the drying fan 2 further includes a separator 27, which includes a support portion 271 and a separator 272; the support portion 271 is disposed between the first fan blade 241 and the second fan blade 242, and the separator 272 is disposed on the support portion 271.

[0065] The partition 272 has a curved structure and protrudes towards the side of the second fan blade 242 away from the first fan blade 241; the partition 272 separates the inner side of the first fan blade 241 and the inner side of the second fan blade 242, ensuring that the flow rate of fresh air is less than the flow rate of the drying airflow, and avoiding the introduction of fresh air from having a significant impact on the drying airflow.

[0066] Preferably, the support portion 271 is an annular plate structure and the partition portion 272 is a hemispherical shell structure.

[0067] To address the issue of the large space occupied by the fan motor, this embodiment proposes that the drying fan 2 includes a first volute 21, a second volute 22, and a fan motor 25. The first volute 21 and the second volute 22 are fastened together to form a fan cavity 23. An opening 211 is formed on the axial wall of the first volute 21 away from the second volute 22, and a motor bracket 26 is provided at the opening 211. Specifically, multiple motor brackets 26 are provided, each motor bracket 26 including a support section and a connecting section. The support section is connected to the first volute 21, and the connecting section extends radially along the fan cavity 23 and is connected to the support section. Multiple motor brackets 26 are spaced apart circumferentially along the fan cavity 23, and the ends of multiple connecting sections away from the support sections are surrounded by an installation frame.

[0068] The partition 272 is configured to form a partition cavity 273, and the side wall of the partition cavity 273 away from the first fan blade 241 has a shaft hole; the fan motor 25 includes a motor body 251 and an output shaft 252, one end of the motor body 251 is mounted on the motor bracket 26, and the other end of the motor body 251 passes through the inner side of the first fan blade 241 and enters the partition cavity 273; the output shaft 252 passes through the shaft hole and is drivenly connected to the partition 272; the support part 271 connects the first fan blade 241 and the second fan blade 242. When the output shaft 252 rotates, the partition 272 drives the support part 271 to rotate, and then the support part 271 drives the first fan blade 241 and the second fan blade 242 to rotate;

[0069] There are gaps between the side wall of the opening 211 and the motor body 251, and between the blade of the first fan blade 241 and the motor body 251; fresh air can enter the fan blade cavity 23 through these gaps; thus, the setting of the opening 211 does not affect the setting of the fan blade motor 25, and the fan blade motor 25 occupies little space outside the fan blade cavity 23, making it widely applicable.

[0070] The end of the opening 211 away from the blade cavity 23 is a flared structure, that is, along the axial direction of the blade cavity 23, the inner diameter of the opening 211 gradually increases from the inside to the outside, so as to allow more fresh air to enter the blade cavity 23 through the opening 211.

[0071] <Clothing Processing Equipment>

[0072] like Figure 4 As shown, this embodiment also provides a clothing processing device 3, including a housing 31, an outer cylinder 32, an inner cylinder 33, and a drying system as described above; the housing 31 forms an installation cavity, and the outer cylinder 32 is disposed within the installation cavity; a drying air inlet 321 is formed at the opening of the outer cylinder 32, and a drying air outlet is formed on the cylinder wall of the outer cylinder 32; the drying air inlet, the second air duct section 12, the fan blade cavity 23, the first air duct section 11, and the drying air outlet are sequentially connected; an opening 211 connects the fan blade cavity 23 and the installation cavity, and the opening 211 can be controlled to open or close; the inner cylinder 33 is rotatably disposed within the outer cylinder 32 for carrying clothing;

[0073] Furthermore, a drying air outlet is formed on the rear wall of the outer cylinder 32, which includes a first drying air outlet 322 and a second drying air outlet 323. The first drying air outlet 322 is located above the second drying air outlet 323. The first air duct section 11 includes a condensing main section 111, an A condensing branch section 112, and a B condensing branch section 113. One air inlet of the condensing main section 111 is connected to the air outlet of the A condensing branch section 112, and the other air inlet of the condensing main section 111 is connected to the air outlet of the B condensing branch section 113. The air outlet of the condensing main section 111 is connected to the air inlet 221 of the fan blade cavity. The air inlet of the A condensing branch section 112 is connected to the first drying air outlet 322, and the air inlet of the B condensing branch section 113 is connected to the second drying air outlet 323.

[0074] An inner water inlet valve is provided on the peripheral wall of the outer cylinder 32; a condensation zone 326 is formed between the rear wall of the inner cylinder 33 and the rear wall of the outer cylinder 32, and a condensation zone 326 is also formed between the inner side of the rear wall of the outer cylinder 32 and the inner side of the peripheral wall of the outer cylinder 32; the condensation zone 326 is connected to the first drying air outlet 322, the second drying air outlet 323 and the inner water inlet valve; a portion of the drying airflow in the condensation zone 326 enters the A condensation branch section 112 through the first drying air outlet 322, and then enters the main condensation section 111; external condensate can enter the condensation zone 326 through the inner water inlet valve; the drying airflow flows from bottom to top along the condensation zone 326 and exchanges heat with the condensate flowing from top to bottom along the condensation zone 326;

[0075] An external water inlet valve is provided on the side wall of the B condensing section 113. Another part of the drying airflow in the condensing zone 326 enters the B condensing section 113 through the second drying air outlet 323, and then enters the main condensing section 111. The outer side of the rear wall of the outer cylinder 32 forms the B condensing section 113. The external condensed water can enter the B condensing section 113 through the external water inlet valve. The drying airflow flows from bottom to top along the B condensing section 113 and exchanges heat with the condensed water flowing from top to bottom along the B condensing section 113.

[0076] The garment processing equipment 3 is equipped with a drying process. When the garment processing equipment 3 operates the drying process, the drying airflow enters the outer drum 32 through the drying air inlet 321, and then enters the inner drum 33 to exchange heat with the clothes inside the inner drum 33. Part of the drying airflow enters the condensing main section 111 through the first drying air outlet 322 and the A condensing branch section 112, and another part of the drying airflow enters the condensing main section 111 through the second drying air outlet 323 and the B condensing branch section 113. Under the action of the drying fan 2, it enters the second air duct section 12. After being heated by the heating element 35, the drying airflow enters the outer drum 32 through the drying air inlet 321. While ensuring that the required condensate water is kept low, the drying effect is improved, the utilization rate of condensate water is increased, and water and energy are saved. The load on the drying fan 2 is reduced, and the accumulation of humidity in the drying airflow is avoided.

[0077] Specifically, an air duct seat is formed on the outer side wall of the bottom of the outer cylinder 32, and an air duct cover is provided on the air duct seat, so that a B condensation support section 113 is formed between the air duct seat and the air duct cover.

[0078] An outer cylinder exhaust port 324 communicating with the outer cylinder 32 is formed on the upper side of the peripheral wall of the outer cylinder 32, and a box exhaust port 311 communicating with the environment where the clothing processing equipment 3 is located is formed on the side wall of the box body 31. An exhaust pipe 34 is connected between the outer cylinder exhaust port 324 and the box exhaust port 311. When fresh air is introduced into the outer cylinder 32, exhaust can be discharged to the outside through the exhaust pipe 34 to regulate the pressure inside the outer cylinder 32. An exhaust valve is provided at the box exhaust port 311, which can be opened or closed as needed.

[0079] The lower side of the peripheral wall of the outer cylinder 32 is also formed with an outer cylinder drain outlet 325 that communicates with the outer cylinder 32. The outer cylinder drain outlet 325 is connected to the environment where the clothing processing equipment 3 is located through the outer cylinder drain pipe 36.

[0080] <Drying Control Methods>

[0081] like Figure 5 As shown, this embodiment also provides a drying control method for a garment processing device 3, wherein the garment processing device 3 is the garment processing device 3 described above; the drying process includes a cooling stage; when the garment processing device 3 is in the cooling stage, the drying control method includes:

[0082] S1. Calculate the relative humidity of the current humidity of the air inside the installation cavity relative to the current humidity of the air inside the inner cylinder 33;

[0083] S2. Compare the relative humidity with the first preset humidity; specifically, the preset humidity is 85%;

[0084] S3. Control the opening 211 to open or close based on the comparison result between the relative humidity and the first preset humidity;

[0085] In summary, by precisely controlling the opening or closing of the opening 211 through the relative humidity between the current humidity of the air inside the installation cavity and the current humidity of the air inside the inner cylinder 33, fresh air can be introduced in a reasonable manner to achieve the purpose of rapid temperature reduction and care.

[0086] Furthermore, S3 includes:

[0087] When the relative humidity is lower than the first preset humidity, control opening 211 opens to introduce fresh air;

[0088] When the relative humidity is greater than or equal to the first preset humidity, the control opening 211 is closed to prevent the introduction of fresh air and avoid the opposite effect caused by excessive humidity of the fresh air.

[0089] S3 includes:

[0090] Obtain the current humidity of the air inside the installation cavity and the current humidity of the air inside the inner cylinder 33.

[0091] Example 2

[0092] Unlike Example 1, the radial length of the first fan blade 241 is r1, the radial length of the second fan blade 242 is r2, and p = r1 / r2; satisfying: 0.9 ≤ p ≤ 1.1; preferably, p = 1, so that the fresh air entering the fan blade cavity 23 through the opening 211 and the drying airflow entering the fan blade cavity 23 through the fan blade cavity inlet 221 are sufficient and can be mixed in any proportion;

[0093] It should be noted that both r1 and r2 can be adjusted according to the actual situation.

[0094] Example 3

[0095] Unlike Embodiment 1, the first fan blade 241 includes n1 blades, and the second fan blade 242 includes n2 blades, Δn = n2 - n1; satisfying: 0 ≤ Δn ≤ 5; preferably, Δn = 5;

[0096] It should be noted that both n1 and n2 can be adjusted according to the actual situation.

[0097] Example 4

[0098] Unlike Embodiment 1, this embodiment addresses the issue that the high humidity of the introduced fresh air actually increases the humidity of the drying airflow. The garment processing device 3 further includes a dehumidifier box, which is located at opening 211 and forms a dehumidification chamber. The dehumidification chamber has a dehumidification chamber inlet and an outlet connected to it. The dehumidification chamber inlet connects to the mounting cavity, and the dehumidification chamber outlet connects to opening 211. The dehumidification inlet can be controlled to open or close. When fresh air flows through the dehumidification chamber, its humidity decreases due to the dehumidification effect of the dehumidifier box, and then it enters the fan blade chamber 23 through opening 211. This reduces the number of times opening or closing opening 211, thus reducing energy consumption.

[0099] In addition, a dehumidification drain is formed at the bottom of the dehumidification chamber, and a condensate inlet is formed on the side wall of the first air duct section 11. A condensate drain pipe is connected between the dehumidification drain and the condensate inlet. The condensate in the dehumidification chamber can enter the first air duct section 11 through the condensate drain pipe, thereby realizing automatic dehumidification of fresh air and indirectly increasing the amount of condensate entering the first air duct section, improving the condensation effect and shortening the cooling time.

[0100] This embodiment also provides a drying control method for a garment processing device, wherein the garment processing device is as described above; the garment processing device is provided with a drying process, the drying process including a cooling stage; when the garment processing device is in the cooling stage, the opening 211 is opened, and the drying control method includes:

[0101] Calculate the current humidity of the fresh air flowing through opening 211;

[0102] Compare the current humidity of the fresh air with the second preset humidity;

[0103] When the current humidity of the fresh air is greater than or equal to the second preset humidity, the dehumidification chamber inlet is opened.

[0104] When the current humidity of the fresh air is lower than the second preset humidity, the dehumidification chamber inlet is closed.

[0105] Example 5

[0106] Unlike Embodiment 1, a first air outlet plate is rotatably provided at the first drying air outlet 322. Controlling the rotation of the first air outlet plate can open or close the first drying air outlet 322, or adjust the opening size and airflow direction of the first drying air outlet 322 to adjust the airflow volume of the first drying air outlet 322. A second air outlet plate is rotatably provided at the second drying air outlet 323. Controlling the rotation of the second air outlet plate can open or close the second drying air outlet 323, or adjust the opening size and airflow direction of the second drying air outlet 323 to adjust the airflow volume of the second drying air outlet 323. The airflow volume of the first drying air outlet 322 and the airflow volume of the second drying air outlet 323 can be adjusted according to the drying needs to ensure that the drying airflow is in full contact with the clothes, or to reduce the humidity of the drying airflow in time, thereby improving the drying efficiency.

[0107] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A drying system for garment processing equipment, characterized in that, The drying system includes: The drying air duct includes a first air duct section and a second air duct section; A drying fan has a fan blade cavity. The side wall of the fan blade cavity has a fan blade cavity inlet, a fan blade cavity outlet, and an opening that communicate with the fan blade cavity. The fan blade cavity inlet is connected to a first air duct section, and the fan blade cavity outlet is connected to a second air duct section. The opening is connected to the external environment where the drying fan is located, and the opening is used to introduce fresh air from the external environment into the fan blade cavity. The drying fan is a centrifugal fan; an air inlet is formed on one axial sidewall of the fan blade cavity, and an opening is formed on the other axial sidewall of the fan blade cavity; an air outlet is formed on the radial sidewall of the fan blade cavity. The drying fan also includes a first fan blade and a second fan blade rotatably disposed in the fan blade cavity. The first fan blade and the second fan blade are arranged side by side and coaxially along the axial direction of the fan blade cavity. The first fan blade is closer to the opening relative to the second fan blade, and the second fan blade is closer to the air inlet of the fan blade cavity relative to the first fan blade. The drying fan also includes a separator, which includes a support and a separator; the support is disposed between the first fan blade and the second fan blade, and the separator is disposed on the support. The partition is a curved structure and protrudes towards the side of the second blade away from the first blade; the partition separates the inner side of the first blade and the inner side of the second blade.

2. The drying system according to claim 1, characterized in that, The axial length of the first fan blade is h1, the axial length of the second fan blade is h2, and k = h1 / h2; satisfying: 0.7 ≤ k ≤ 1; and / or, The radial length of the first blade is r1, the radial length of the second blade is r2, and p = r1 / r2; satisfying: 0.9 ≤ p ≤ 1.1; and / or, The first wind turbine blade has n1 blades, the second wind turbine blade has n2 blades, and Δn = n2 - n1; It satisfies: 0≤Δn≤5.

3. The drying system according to claim 1, characterized in that, The support part is a ring plate structure, and the partition part is a hemispherical shell structure.

4. The drying system according to claim 1, characterized in that, The drying fan includes a first volute, a second volute, and a fan motor. The first volute and the second volute are fastened together to form the fan blade cavity. The first volute has an opening on its axial wall away from the second volute, and a motor bracket is provided at the opening. The partition is configured to form a partition cavity, and a shaft hole is formed on the side wall of the partition cavity away from the first fan blade; the fan blade motor includes a motor body and an output shaft, one end of the motor body is mounted on the motor bracket, and the other end of the motor body passes through the inner side of the first fan blade and enters the partition cavity; the output shaft passes through the shaft hole and is drivenly connected to the partition. There are gaps between the sidewall of the opening and the motor body, and between the blade of the first fan blade and the motor body.

5. A garment processing device, characterized in that, The system includes a housing, an outer cylinder, an inner cylinder, and a drying system as described in any one of claims 1-4; the housing has an installation cavity, and the outer cylinder is disposed within the installation cavity; a drying air inlet is formed at the opening of the outer cylinder, and a drying air outlet is formed on the cylinder wall of the outer cylinder; the inner cylinder is rotatably disposed within the outer cylinder and is used to hold clothing; the drying air inlet, the second air duct section, the fan blade cavity, the first air duct section, and the drying air outlet are sequentially connected; the opening connects the fan blade cavity and the installation cavity, and the opening can be controlled to open or close.

6. The garment processing equipment according to claim 5, characterized in that, The drying air outlet includes a first drying air outlet and a second drying air outlet, with the first drying air outlet located above the second drying air outlet; the first air duct section includes a main condensing section, a condensing branch section A, and a condensing branch section B, with the two air inlets of the main condensing section connected to the air outlets of the condensing branch section A and B, respectively; the air outlet of the main condensing section is connected to the air inlet of the fan blade cavity; the air inlet of the condensing branch section A is connected to the first drying air outlet, and the air inlet of the condensing branch section B is connected to the second drying air outlet; An inner water inlet valve is provided on the peripheral wall of the outer cylinder; a condensation zone is formed between the inner side of the rear wall of the outer cylinder and the inner side of the peripheral wall of the outer cylinder, and the condensation zone is connected to both the first drying air outlet and the inner water inlet valve. The side wall of the B condensing section is provided with an external water inlet valve, and the outer side of the rear wall of the outer cylinder forms the B condensing section, which is connected to the external water inlet valve.

7. The garment processing equipment according to claim 5, characterized in that, The clothing processing device also includes a dehumidifier box, which is disposed at the opening and forms a dehumidifier cavity; the dehumidifier cavity has a dehumidifier cavity air inlet and a dehumidifier cavity air outlet that are connected to the dehumidifier cavity, the dehumidifier cavity air inlet is connected to the mounting cavity, and the dehumidifier cavity air outlet is connected to the opening; the dehumidifier cavity air inlet can be controlled to open or close.

8. A drying control method for a garment processing device, characterized in that, The garment processing equipment is the garment processing equipment as described in claim 5; the garment processing equipment is provided with a drying process, the drying process including a cooling stage; When the garment processing equipment is in the cooling phase, the drying control method includes: Calculate the relative humidity of the current humidity of the air inside the mounting cavity relative to the current humidity of the air inside the inner cylinder; Compare the relative humidity with the first preset humidity; The opening is controlled to open or close based on the comparison between the relative humidity and the first preset humidity.

9. The drying control method for the garment processing equipment according to claim 8, characterized in that, The step of controlling the opening or closing of the opening based on the comparison result of the relative humidity and the first preset humidity includes: When the relative humidity is less than a first preset humidity, the opening is controlled to open; When the relative humidity is greater than or equal to a first preset humidity, the opening is controlled to close.

10. A drying control method for a garment processing device, characterized in that, The garment processing equipment is the garment processing equipment according to claim 7; the garment processing equipment is provided with a drying process, the drying process including a cooling stage; When the garment processing equipment is in the cooling phase, the opening is opened, and the drying control method includes: Calculate the current humidity of the fresh air flowing through the opening; Compare the current humidity of the fresh air with the second preset humidity; When the current humidity of the fresh air is greater than or equal to the second preset humidity, the air inlet of the dehumidification chamber is opened. If the current humidity of the fresh air is less than the second preset humidity, the air inlet of the dehumidification chamber is closed.

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