Drying structure capable of recycling hot air
By designing a hot air recycling drying structure, utilizing heat exchangers and circulating fans, and combining flow diversion components to control gas flow, the problem of wasted heat energy in the dryer was solved, hot air recycling was achieved, and energy consumption was reduced.
Patent Information
- Application Number
- CN202520605504.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-02
AI Technical Summary
The dryer wastes a lot of heat energy during operation, resulting in high energy consumption.
A hot air recycling drying structure is designed. By setting up a heat exchanger and a circulating fan, and using a diversion component to control the gas flow direction, the hot air can be recycled. The structure includes a shell, drying chamber, heat exchanger, air inlet, air outlet, return air outlet, diversion box, reuse port, exhaust port, diversion port and diversion chamber. The flow direction of the gas at different stages is adjusted to achieve hot air recycling.
This reduces heat energy waste in the dryer, lowers energy consumption, and achieves efficient utilization of hot air.
Smart Images
Figure CN223954524U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to drying equipment technical field especially is related to a drying structure of hot -air reuse. BACKGROUND
[0002] The dryer is a kind of equipment for drying linen, mainly used in the laundry room of hotel, hotel, hospital etc.
[0003] The core principle of the dryer is that air is heated to a suitable temperature by a heater, and then hot air is continuously sent into the drying cavity by a fan, and the hot air is contacted with linen in the drying cavity, and then the moisture in the linen is carried out of the drying cavity, so that the linen is dried.
[0004] During the completion of drying task of the dryer, the wet and hot waste gas is directly discharged to the outside environment, which leads to the waste of heat energy contained in the gas, and the dryer needs to consume a large amount of electric energy during operation. UTILITY MODEL CONTENT
[0005] In order to reduce the heat energy waste of the dryer and reduce the energy consumption of the dryer, the present application provides a drying structure of hot air reuse.
[0006] The drying structure of hot air reuse provided by the present application adopts the following technical scheme:
[0007] A drying structure of hot air reuse, comprising a shell, a drying cavity is arranged in the shell, a heat exchanger is arranged in the drying cavity, an air inlet and an air outlet are formed in the top of the shell, the air inlet and the air outlet are communicated with the drying cavity, a return air inlet is formed in the top of the shell, the return air inlet is communicated with the drying cavity, a flow distribution box is arranged on the top of the shell, a reuse port is formed in the bottom of the flow distribution box, the reuse port is communicated with the return air inlet, an exhaust port is formed in one side of the flow distribution box, a flow distribution port is formed in the other side of the flow distribution box, a circulating fan is arranged between the flow distribution port and the air outlet, a flow distribution cavity is arranged in the flow distribution box, the flow distribution port, the exhaust port and the reuse port are communicated with the flow distribution cavity, a flow distribution assembly is arranged in the flow distribution cavity, and the flow distribution assembly is used to control the flow direction of gas.
[0008] By adopting the above technical scheme, when the linen is dried, the linen is put into the drying cavity, and then the heat exchanger and the circulating fan are started. At this time, the outside fresh air enters the drying cavity through the air inlet, the heat exchanger in the drying cavity heats the outside fresh air to form hot air, the hot air contacts the linen in the drying cavity, and then carries the moisture in the linen out from the air outlet, realizing the effect of drying the linen. The gas carrying moisture is discharged from the shunt port into the shunt cavity through the circulating fan. In the early stage of linen drying, the gas entering the shunt cavity is not only low in temperature but also high in humidity. At this time, the shunt assembly discharges most of the gas in the shunt cavity from the exhaust port to the outside, so that a small part of the gas returns to the drying cavity from the return air port after passing through the reuse port. In the middle and late stages of linen drying, the gas entering the shunt cavity is high in temperature and low in humidity. At this time, the shunt assembly discharges a small part of the gas in the shunt cavity from the exhaust port to the outside, so that most of the gas returns to the drying cavity from the return air port after passing through the reuse port, realizing the effect of recycling the hot air in the drying cavity, reducing the waste of heat energy of the drying machine, and reducing the energy consumption of the drying machine.
[0009] Preferably, the air outlet is in communication with the input end of the circulating fan, and the shunt port is in communication with the output end of the circulating fan.
[0010] By adopting the above technical scheme, when the circulating fan is started, the gas in the drying cavity enters the input end of the circulating fan from the air outlet, and the output end of the circulating fan discharges the gas from the shunt port into the shunt cavity.
[0011] Preferably, the shell comprises a left box body and a right box body, the left box body is fixedly connected with the right box body, the air outlet is arranged on the top of the left box body, the air inlet and the return air port are arranged on the top of the right box body, the left box body is provided with a guide inlet on the side wall, the right box body is provided with a guide outlet on the side wall, the guide inlet and the guide outlet are oppositely arranged, the guide inlet and the guide outlet are in communication with each other, a left cavity is arranged in the left box body, the air outlet and the guide inlet are in communication with the left cavity, a right cavity is arranged in the right box body, the air inlet, the return air port and the guide outlet are in communication with the right cavity, and the left cavity, the guide inlet, the right cavity and the guide outlet jointly form a drying cavity.
[0012] By adopting the above technical scheme, when the circulating fan is started, the gas outside the shell first enters the right cavity through the air inlet, the gas in the right cavity flows from the air inlet to the guide outlet, and the gas in the right cavity is discharged from the guide outlet to the left box body and then enters the left cavity through the guide inlet. The gas in the left cavity flows from the guide inlet to the air outlet, so that the hot air is not easy to be directly discharged from the air outlet, thereby realizing the effect that the gas fully flows in the drying cavity.
[0013] As preferred, the right chamber comprises an upper chamber and a lower chamber, the upper chamber is located above the lower chamber, the air inlet and the air return are both communicated with the top of the upper chamber, the bottom of the upper chamber is communicated with the top of the lower chamber, the bottom of the lower chamber is communicated with the outlet, the heat exchanger is arranged in the upper chamber, and the lower chamber is used for accommodating the laundry.
[0014] By adopting the above technical scheme, when the circulating fan is started, the gas outside the shell first enters the upper chamber through the air inlet, the heat exchanger in the upper chamber heats the gas, the hot air formed after the gas is heated enters the lower chamber, the hot air in the lower chamber contacts the laundry in the lower chamber, and then the gas carrying moisture in the lower chamber is discharged from the right chamber through the outlet, and the gas carrying moisture is discharged from the right chamber through the inlet and enters the left chamber, and the gas in the left chamber is discharged through the outlet.
[0015] As preferred, the right box body is provided with a fresh air box at the top, the fresh air box is provided with a fresh air chamber, the fresh air box is provided with a fresh air inlet at the top and a fresh air outlet at the bottom, the fresh air inlet and the fresh air outlet are both communicated with the fresh air chamber, and the fresh air outlet is communicated with the air inlet.
[0016] By adopting the above technical scheme, when the circulating fan is started, the gas outside the shell first enters the upper chamber through the air inlet, the heat exchanger in the upper chamber heats the gas, the hot air formed after the gas is heated enters the lower chamber, the hot air in the lower chamber contacts the laundry in the lower chamber, and then the gas carrying moisture in the lower chamber is discharged from the right chamber through the outlet, and the gas carrying moisture is discharged from the right chamber through the inlet and enters the left chamber, and the gas in the left chamber is discharged through the outlet.
[0017] As preferred, the shunt assembly comprises a shunt plate, the shunt plate is movably arranged in the shunt chamber, the inner wall of the shunt chamber is attached to the two side walls of the shunt plate, the shunt plate is formed with an exhaust chamber above the shunt plate, the exhaust chamber is communicated with the exhaust outlet, the shunt plate is formed with a return air chamber below the shunt plate, and the return air chamber is communicated with the air return.
[0018] By adopting the above technical scheme, in the early stage of laundry drying, the rotation of the shunt plate makes the space of the exhaust chamber larger than the space of the return air chamber, so that most of the gas is discharged to the outside through the exhaust outlet, and in the middle and late stages of laundry drying, the rotation of the shunt plate makes the space of the exhaust chamber smaller than the space of the return air chamber, so that most of the gas passes through the air return and returns to the drying chamber through the air return, thereby achieving the effect of controlling the flow direction of the gas.
[0019] As preferred, the shunt assembly further comprises a piston cylinder, a driving arm and a driving shaft, one end of the driving shaft is rotatably connected to one side of the shunt box, the other end of the driving shaft penetrates through the other side wall of the shunt box, the shunt plate is fixedly connected to the driving shaft, the end of the driving shaft located outside the shunt box is fixedly connected to the driving arm, the cylinder body of the piston cylinder is rotatably connected to the shunt box, and the output shaft of the piston cylinder is rotatably connected to the end of the driving arm away from the driving shaft.
[0020] By adopting the technical scheme, after the piston cylinder is started, the output shaft of the piston cylinder is extended and retracted, so as to drive the driving arm to rotate, the driving arm drives the driving shaft to rotate, and the driving shaft drives the flow distribution plate to rotate, thereby achieving the effect of driving the flow distribution plate to rotate.
[0021] As preferred, a baffle is sleeved on the output shaft of the piston cylinder, the baffle is fixedly connected with the output shaft of the piston cylinder, a plurality of limiting screws are arranged through the baffle, the limiting screws are fixedly connected with the cylinder body of the piston cylinder, a group of forward nuts and a group of reverse nuts are threadedly connected on the limiting screws, the baffle is located between opposite surfaces of the forward nuts, and the baffle is located between opposite surfaces of the reverse nuts.
[0022] By adopting the technical scheme, during the extension and retraction of the output shaft of the piston cylinder, the output shaft of the piston cylinder drives the baffle to move along the limiting screw, and since the baffle is located between opposite surfaces of the forward nuts and the baffle is located between opposite surfaces of the reverse nuts, the movement range of the baffle is limited by the forward nuts and the reverse nuts, thereby achieving the effect of limiting the rotation angle of the flow distribution plate, and the movement range of the baffle is adjusted by screwing the forward nuts and the reverse nuts, thereby achieving the effect of adjusting the rotation angle of the flow distribution plate.
[0023] In summary, the present application has at least one of the following beneficial technical effects:
[0024] 1. By arranging the shell, the drying cavity, the heat exchanger, the air inlet, the air outlet, the air return, the flow distribution box, the recycling port, the exhaust port, the flow distribution port, the circulating fan, the flow distribution cavity and the flow distribution assembly, the effect of recycling hot air in the drying cavity is achieved, the waste of heat energy of the dryer is reduced, and the energy consumption of the dryer is reduced.
[0025] 2. By arranging the left box body, the right box body, the inlet, the outlet, the left chamber and the right chamber, the effect of fully flowing of the gas in the drying cavity is achieved.
[0026] 3. By arranging the flow distribution plate, the piston cylinder, the driving arm and the driving shaft, the effect of controlling the gas flow direction is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is a schematic diagram of a hot air recycling drying structure in an embodiment of the present application.
[0028] Figure 2 is a sectional view showing the positional relationship between the air inlet and the drying cavity in an embodiment of the present application.
[0029] Figure 3 is a sectional view showing the positional relationship between the air return and the air outlet in an embodiment of the present application.
[0030] Figure 4is a sectional view of the present application embodiment embodying the position relationship between the fresh air inlet and the fresh air outlet.
[0031] Figure 5 is a sectional view of the present application embodiment embodying the position relationship between the shunt box and the circulating motor.
[0032] Figure 6 is a schematic diagram of the present application embodiment embodying the connection relationship between the piston cylinder and the shunt plate.
[0033] Figure 7 is a schematic diagram of the present application embodiment embodying the connection relationship between the piston cylinder and the baffle.
[0034] BRIEF DESCRIPTION OF DRAWINGS: 1, shell; 11, left box body; 111, air outlet; 12, right box body; 121, air inlet; 122, return air outlet; 2, drying cavity; 21, left chamber; 22, inlet; 23, right chamber; 231, upper chamber; 232, lower chamber; 24, outlet; 3, heat exchanger; 4, shunt box; 41, shunt port; 42, exhaust port; 43, recycling port; 5, shunt cavity; 51, exhaust cavity; 52, return air cavity; 6, circulating fan; 7, fresh air box; 71, fresh air cavity; 72, fresh air inlet; 73, fresh air outlet; 8, shunt assembly; 81, shunt plate; 82, piston cylinder; 83, driving arm; 84, driving shaft; 9, baffle; 92, limiting screw; 93, forward nut; 94, reverse nut. DETAILED DESCRIPTION
[0035] The following will be described in detail below Figures 1-7 The present application is further described in detail.
[0036] The present application embodiment discloses a kind of drying structure of hot air recycling. Refer to Figures 1 to 3 , including shell 1, shell 1 includes left box body 11 and right box body 12, left box body 11 is fixedly installed with right box body 12. Left box body 11 is equipped with left chamber 21, left box body 11 top is equipped with air outlet 111, left box body 11 side wall is equipped with inlet 22, air outlet 111 and inlet 22 are all communicated with left chamber 21 each other. Right box body 12 is equipped with right chamber 23, and right chamber 23 includes upper chamber 231 and lower chamber 232. Upper chamber 231 is located above lower chamber 232, and the bottom of upper chamber 231 is communicated with the top of lower chamber 232 each other. Heat exchanger 3 is installed in upper chamber 231, and lower chamber 232 is used to accommodate cloth. Right box body 12 top is equipped with air inlet 121 and return air outlet 122, and air inlet 121 and return air outlet 122 are all communicated with the top of upper chamber 231 each other. Right box body 12 side wall is equipped with outlet 24, and the bottom of lower chamber 232 is communicated with outlet 24 each other. Inlet 22 and outlet 24 are oppositely arranged, and inlet 22 and outlet 24 are communicated with each other. Left chamber 21, inlet 22, right chamber 23 and outlet 24 jointly constitute drying cavity 2.
[0037] Reference Figures 1 to 6 The left box body 11 is provided with a circulating fan 6 at the top, and the right box body 12 is provided with a fresh air box 7 and a shunt box 4 at the top. The fresh air box 7 is provided with a fresh air cavity 71, and the fresh air box 7 is provided with a fresh air inlet 72 at the top and a fresh air outlet 73 at the bottom. The fresh air inlet 72 and the fresh air outlet 73 are in communication with the fresh air cavity 71, and the fresh air outlet 73 is in communication with the air inlet 121. The shunt box 4 is provided with a recycling port 43 at the bottom, and the recycling port 43 is in communication with the air return port 122. The shunt box 4 is provided with an exhaust port 42 on one side and a shunt port 41 on the other side. The circulating fan 6 operates in principle by sucking air from the bottom and exhausting air from the right side, so the shunt port 41 is in communication with the output end of the circulating fan 6, and the input end of the circulating fan 6 is in communication with the air outlet 111. The shunt box 4 is provided with a shunt cavity 5, and the shunt port 41, the exhaust port 42 and the recycling port 43 are in communication with the shunt cavity 5. The shunt cavity 5 is provided with a shunt assembly 8, and the shunt assembly 8 is used to control the flow direction of the gas.
[0038] When the linen is dried, the linen is placed in the drying cavity 2, and then the heat exchanger 3 and the circulating fan 6 are started. When the circulating fan 6 is started, the gas outside the shell 1 first enters the fresh air cavity 71 through the fresh air inlet 72, and the gas in the fresh air cavity 71 moves from the fresh air inlet 72 to the fresh air outlet 73. After the gas passes through the fresh air outlet 73, it flows into the upper chamber 231 through the air inlet 121. The heat exchanger 3 in the upper chamber 231 heats the gas, so that the gas forms hot air and enters the lower chamber 232. After the hot air in the lower chamber 232 contacts the linen in the lower chamber 232, the gas carrying moisture in the lower chamber 232 is discharged from the guide outlet 24 to the right chamber 23. After the gas carrying moisture is discharged from the right chamber 23 through the guide inlet 22, it enters the left chamber 21, and the gas in the left chamber 21 flows from the guide inlet 22 to the gas outlet. The gas carrying moisture in the linen is discharged from the gas outlet, achieving the effect of drying the linen. The gas carrying moisture is discharged from the shunt port 41 into the shunt cavity 5 under the action of the circulating fan 6, and passes through the shunt assembly 8. Part of the gas is discharged from the exhaust port 42, and the other part of the gas reenters the upper chamber 231 from the air return port 122. In the early stage of linen drying, the temperature of the gas in the shunt cavity 5 is low and the humidity is high, so the shunt assembly 8 at this time discharges most of the gas in the shunt cavity 5 from the exhaust port 42 to the outside, only a small part of the gas passes through the recycling port 43 and enters the upper chamber 231. In the middle and late stages of linen drying, the temperature of the gas entering the shunt cavity 5 is high and the humidity is low, so the shunt assembly 8 discharges a small part of the gas in the shunt cavity 5 from the exhaust port 42 to the outside, so that most of the gas passes through the recycling port 43 and returns to the drying cavity 2 from the air return port 122. The effect of recycling the hot air in the drying cavity 2 is achieved, the waste of heat energy of the drying machine is reduced, and the energy consumption of the drying machine is reduced.
[0039] In order to control the flow direction of the gas, refer to Figures 1 to 6The shunt assembly 8 comprises a shunt plate 81, a piston cylinder 82, a driving arm 83 and a driving shaft 84. The shunt plate 81 is located in the shunt cavity 5, and the inner wall of the shunt cavity 5 is attached to the two side walls of the shunt plate 81. The shunt plate 81 forms an exhaust cavity 51 above it, which is in communication with the exhaust port 42. The shunt plate 81 forms a return air cavity 52 below it, which is in communication with the return port 43. The shunt plate 81 is fixed on the driving shaft 84 by bolts. A set of shaft sleeves are sleeved on the driving shaft 84, and the shaft sleeves are made of copper. A set of shaft sleeve fixing rings are installed on the side wall of the shunt box 4. The shaft sleeve fixing rings are oppositely arranged. The shaft sleeves are pressed into the shaft sleeve fixing rings, so that the driving shaft 84 is rotatably installed on the shunt box 4. One end of the driving shaft 84 penetrates through one side wall of the shunt box 4. The end of the driving shaft 84 located outside the shunt box 4 is tightly connected with the driving arm 83 through an expansion sleeve. The cylinder body of the piston cylinder 82 is rotatably installed on the fresh air box 7, and a joint bearing is installed on the output shaft of the piston cylinder 82. The joint bearing is connected with the end of the driving arm 83 away from the driving shaft 84 by bolts, so as to realize the rotating connection between the output shaft of the piston cylinder 82 and the driving arm 83. After starting the piston cylinder 82, the output shaft of the piston cylinder 82 extends and retracts, thereby driving the driving arm 83 to rotate. The rotation of the driving arm 83 drives the driving shaft 84 to rotate, and the rotation of the driving shaft 84 drives the shunt plate 81 to rotate, thereby realizing the effect of driving the shunt plate 81 to rotate. In the early stage of linen drying, the rotation of the shunt plate 81 makes the space of the exhaust cavity 51 larger than that of the return air cavity 52, so that most of the gas is discharged to the outside through the exhaust port 42. In the middle and late stages of linen drying, the rotation of the shunt plate 81 makes the space of the exhaust cavity 51 smaller than that of the return air cavity 52, so that most of the gas passes through the return port 43 and returns to the drying cavity 2 from the return port 122.
[0040] Referring to Figure 6 and Figure 7 A baffle 9 is sleeved on the output shaft of the piston cylinder 82, and the baffle 9 is fixed on the output shaft of the piston cylinder 82. Two limiting screws 92 are arranged through the baffle 9. One end of each limiting screw 92 is fixedly installed on the cylinder body of the piston cylinder 82. In the extension and retraction process of the output shaft of the piston cylinder 82, the output shaft of the piston cylinder 82 drives the baffle 9 to move along the limiting screws 92. A set of forward nuts 93 and a set of reverse nuts 94 are threadedly connected on the limiting screws 92. The rotation directions of the forward nuts 93 and the reverse nuts 94 are opposite, which plays a role in preventing loosening. The baffle 9 is located between the opposite faces of the forward nuts 93, and the baffle 9 is located between the opposite faces of the reverse nuts 94. Therefore, the movement range of the baffle 9 is limited by the forward nuts 93 and the reverse nuts 94, thereby realizing the effect of limiting the rotation angle of the shunt plate 81. By screwing the forward nuts 93 and the reverse nuts 94, the movement range of the baffle 9 can be adjusted, thereby realizing the effect of adjusting the rotation angle of the shunt plate 81.
[0041] The implementation principle of the drying structure with hot air recycling of the embodiment of the application is as follows: when the cloth is dried, the cloth is placed in the drying cavity 2, and then the heat exchanger 3 and the circulating fan 6 are started. When the circulating fan 6 is started, the gas outside the shell 1 first enters the fresh air cavity 71 through the fresh air inlet 72, the gas in the fresh air cavity 71 moves from the fresh air inlet 72 to the fresh air outlet 73, and after the gas passes through the fresh air outlet 73, it flows into the upper cavity 231 through the air inlet 121. The heat exchanger 3 in the upper cavity 231 heats the gas, so that the gas forms hot air and enters the lower cavity 232. After the hot air in the lower cavity 232 contacts the cloth in the lower cavity 232, the gas carrying moisture in the lower cavity 232 is discharged from the guide outlet 24 to the right cavity 23. After the gas carrying moisture is discharged from the right cavity 23, it enters the left cavity 21 through the guide inlet 22, and the gas in the left cavity 21 flows from the guide inlet 22 to the air outlet. The gas carrying moisture in the cloth is discharged from the air outlet, realizing the effect of drying the cloth. Under the action of the circulating fan 6, the gas carrying moisture enters the shunt cavity 5 through the shunt port 41, and through the rotating mode of the shunt plate 81, the volume of the exhaust cavity 51 and the volume of the return air cavity 52 are adjusted, so that part of the gas is discharged from the exhaust port 42, and another part of the gas reenters the upper cavity 231 from the return air port 122. In the early stage of drying the cloth, the temperature of the gas in the shunt cavity 5 is low and the humidity is high, so at this time the shunt plate 81 is rotated to make the space of the exhaust cavity 51 larger than the space of the return air cavity 52, most of the gas in the shunt cavity 5 is discharged to the outside from the exhaust port 42, and only a small part of the gas passes through the recycling port 43 and enters the upper cavity 231. In the middle and late stages of drying the cloth, the temperature of the gas entering the shunt cavity 5 is high and the humidity is low, at this time the shunt plate 81 is rotated to make the space of the exhaust cavity 51 smaller than the space of the return air cavity 52, so that most of the gas passes through the recycling port 43 and returns to the drying cavity 2 from the return air port 122. The effect of recycling the hot air in the drying cavity 2 is realized, the waste of heat energy of the dryer is reduced, and the energy consumption of the dryer is reduced.
[0042] The above are preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape, principle of the application should be covered within the protection scope of the application.
Claims
1. A drying structure with hot air recycling, comprising a shell, a drying cavity is arranged in the shell, a heat exchanger is arranged in the drying cavity, an air inlet and an air outlet are arranged on the top of the shell, and the air inlet and the air outlet are in communication with the drying cavity. The shell top is provided with a return air outlet, the return air outlet and the drying cavity are in communication, the shell top is provided with a distribution box, the bottom of the distribution box is provided with a recycling outlet, the recycling outlet and the return air outlet are in communication, one side of the distribution box is provided with an exhaust outlet, the other side of the distribution box is provided with a distribution outlet, the distribution outlet and the air outlet are in communication and are provided with a circulating fan, the distribution box is provided with a distribution cavity, the distribution outlet, the exhaust outlet and the recycling outlet are in communication with the distribution cavity, the distribution cavity is provided with a distribution assembly, and the distribution assembly is used for controlling the flow direction of the gas.
2. The hot air recycling drying structure according to claim 1, characterized in that: The air outlet is in communication with the input end of the circulating fan, and the distribution outlet is in communication with the output end of the circulating fan.
3. The hot air recycling drying structure according to claim 1, characterized in that: The shell comprises a left box body and a right box body, the left box body and the right box body are fixedly connected, the air outlet is arranged on the top of the left box body, the air inlet and the return air outlet are arranged on the top of the right box body, the side wall of the left box body is provided with a guide inlet, the side wall of the right box body is provided with a guide outlet, the guide inlet and the guide outlet are oppositely arranged, the guide inlet and the guide outlet are in communication, the left box body is provided with a left cavity, the air outlet and the guide inlet are in communication with the left cavity, the right box body is provided with a right cavity, the air inlet, the return air outlet and the guide outlet are in communication with the right cavity, the left cavity, the guide inlet, the right cavity and the guide outlet jointly form a drying cavity, and the heat exchanger is arranged in the right cavity and is used for accommodating the linen.
4. The hot air recycling drying structure according to claim 3, characterized in that: The right cavity comprises an upper cavity and a lower cavity, the upper cavity is located above the lower cavity, the air inlet and the return air outlet are in communication with the top of the upper cavity, the bottom of the upper cavity and the top of the lower cavity are in communication, the bottom of the lower cavity and the guide outlet are in communication, the heat exchanger is arranged in the upper cavity, and the lower cavity is used for accommodating the linen.
5. The hot air recycling drying structure according to claim 3, characterized in that: The top of the right box body is fixedly provided with a fresh air box, the fresh air box is provided with a fresh air cavity, the top of the fresh air box is provided with a fresh air inlet, the bottom of the fresh air box is provided with a fresh air outlet, the fresh air inlet and the fresh air outlet are in communication with the fresh air cavity, and the fresh air outlet is in communication with the air inlet.
6. The hot air recycling drying structure according to claim 1, characterized in that: The distribution assembly comprises a distribution plate, the distribution plate is movably arranged in the distribution cavity, the inner wall of the distribution cavity is attached to the two side walls of the distribution plate, an exhaust cavity is formed above the distribution plate, the exhaust cavity is in communication with the exhaust outlet, a return air cavity is formed below the distribution plate, and the return air cavity is in communication with the recycling outlet.
7. The hot air recycling drying structure according to claim 6, characterized in that: The distribution assembly further comprises a piston cylinder, a driving arm and a driving shaft, one end of the driving shaft is rotatably connected to one side of the distribution box, the other end of the driving shaft penetrates through the other side wall of the distribution box, the distribution plate is fixedly connected to the driving shaft, one end of the driving arm away from the driving shaft is fixedly connected to the driving shaft located outside the distribution box, the cylinder body of the piston cylinder is rotatably connected to the distribution box, and the output shaft of the piston cylinder is rotatably connected to the driving arm away from the driving shaft.
8. The hot air recycling drying structure according to claim 7, characterized in that: A baffle is sleeved on the output shaft of the piston cylinder, the baffle is fixedly connected to the output shaft of the piston cylinder, a plurality of limiting screws are arranged through the baffle, the limiting screws are fixedly connected to the cylinder body of the piston cylinder, a group of forward nuts and a group of reverse nuts are threadedly connected to the limiting screws, the baffle is located between the opposite faces of the forward nuts, and the baffle is located between the opposite faces of the reverse nuts.