Drying system of twin washing machine

Abstract

The invention is suitable for the technical field of laundry equipment, and provides a drying system of a twin washing machine. The air guide shell is provided with an air guide cavity, the air guide cavity communicates with a first air inlet end, a first air outlet end and a second air outlet end, and the first air inlet end communicates with the output end of the fan; the first heater is arranged in the air guide shell; the heat exchange pipe comprises an inner-layer pipe and an outer-layer pipe arranged on the outer side of the inner-layer pipe in a sleeving mode, one end of the outer-layer pipe is communicated with the input end of the fan, the other end of the outer-layer pipe is communicated with the atmosphere, an air inlet channel is formed between the inner-layer pipe and the outer-layer pipe, one end of the inner-layer pipe is communicated with the tail gas treatment device, the other end of the inner-layer pipe is communicated with the washing barrel through a side pipe, and a pipe body of the inner-layer pipe is made of heat conduction materials. Air in the washing barrels is directly exhausted out of the atmosphere, the draught fan sucks fresh air again through the air inlet channel, the air between the two washing barrels cannot flow mutually, hot air in the inner-layer pipe can exchange heat with the air in the air inlet channel, heat is recycled, and heat loss is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of laundry equipment, and in particular relates to a drying system of a twin washing machine. Background Art

[0002] The twin washing machines adopt a "one machine, two drums" design, which can operate two washing tubs separately. The two washing tubs can wash clothes of different materials separately, solving the problems of healthy washing and high-end clothing washing and care that have troubled users for a long time, and are welcomed by the general public.

[0003] In order to prevent the two washing tubs from interfering with each other, the existing twin washing machines use two independent circulation drying systems to dry the clothes in the two washing tubs respectively. Each circulation drying system includes: a drying heater and a fan. The fan drives the airflow through the heater into the washing tub. The drum in the washing tub rotates to drive the clothes to tumble so that the hot air flow evaporates the moisture on the clothes. The airflow in the washing tub then returns to the input end of the fan through the pipeline to realize circulation. However, although the two independent drying systems can ensure the independence of the two washing tubs, the cost is relatively high. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a drying system for a twin washing machine, aiming to solve the problem that the existing twin washing machines use two independent drying systems to ensure the independence of the two washing tubs, which is costly.

[0005] The embodiment of the present application is implemented as follows: a drying system of a twin washing machine, the twin washing machine includes two washing tubs, the washing tubs are provided with an air inlet and an air outlet for hot air to flow in and out, the drying system includes:

[0006] Fan;

[0007] An air guide shell having an air guide cavity, wherein the air guide cavity is connected with a first air inlet end, a first air outlet end and a second air outlet end, wherein the first air inlet end is connected with an output end of the fan, and the first air outlet end and the second air outlet end are respectively used to be connected with an air inlet of a washing tub;

[0008] a first heater, disposed in the air guide housing and located at the first air inlet end;

[0009] A heat exchange tube, the heat exchange tube comprises an inner tube and an outer tube sleeved on the outside of the inner tube, one end of the outer tube is connected to the input end of the fan, and the other end is connected to the atmosphere, an air inlet channel is formed between the inner tube and the outer tube, one end of the inner tube extends to the outside of the outer tube and is connected to an exhaust gas treatment device, the other end of the inner tube is located in the outer tube and is connected to two side tubes, the two side tubes extend to the outside of the outer tube and are respectively used to be connected to an air outlet of a washing tub, and the tube body of the inner tube is made of heat conductive material.

[0010] As a preferred embodiment of the present application, the exhaust gas treatment device includes a condensation box, in which a plurality of condensation plates are arranged, and a curved air guide passage is formed between the plurality of condensation plates. One end of the air guide passage is connected to the air outlet end of the inner layer tube, and the other end is connected to an air outlet hole.

[0011] As a preferred embodiment of the present application, the condensation box is further provided with a water outlet for condensed water to flow out, and the water outlet is connected to a Tesla valve, and the Tesla valve is used to prevent the gas in the condensation box from spraying out from the water outlet.

[0012] As a preferred embodiment of the present application, a partition plate extending along the length direction of the inner tube is provided in the inner tube, and the partition plate divides the inner tube into a first tube cavity and a second tube cavity, and the first tube cavity and the second tube cavity are respectively connected to one of the side tubes.

[0013] As a preferred embodiment of the present application, a first windshield for shielding the first tube cavity is rotatably provided at the outlet of the first tube cavity, and a second windshield for shielding the second tube cavity is rotatably provided at the outlet of the second tube cavity.

[0014] As a preferred embodiment of the present application, the first air outlet end is provided with a third wind shield, and the third wind shield is rotatably connected to the air guide shell. A torsion spring for driving the third wind shield to close the first air outlet end is provided between the third wind shield and the air guide shell, and the third wind shield is connected to a driving device for driving the third wind shield to open the first air outlet end.

[0015] As a preferred embodiment of the present application, the driving device includes a centrifugal component and a transmission component, and the centrifugal component includes: a first sliding rod, a first slider, a first connecting rod, a second connecting rod and a sliding sleeve, the first sliding rod is used to be coaxially fixed to the drum of the twin washing machine and rotate with the drum, the first slider is slidably arranged on the first sliding rod, the middle part of the second connecting rod is rotatably connected to the first sliding rod, one end of the second connecting rod is rotatably connected to one end of the first connecting rod, the other end of the second connecting rod is provided with a gravity ball, the other end of the first connecting rod is rotatably connected to the first sliding rod, and a crank slider structure is formed between the first slider, the first connecting rod, the second connecting rod and the first sliding rod, the sliding sleeve is rotatably sleeved on the first sliding rod and can slide along the first sliding rod, the outer periphery of the sliding sleeve is provided with an annular groove, and the second slider is provided with a connecting portion buckled to the annular groove, and when the sliding sleeve slides along the first connecting rod, the third wind deflector is driven to rotate through the transmission assembly.

[0016] As a preferred embodiment of the present application, the transmission assembly includes a mounting frame, a driving column, a second sliding rod, a second slider and a rotating rod, the mounting frame is used to be fixedly connected to the washing tub, the driving column is coaxially fixedly connected to the rotating shaft of the third wind deflector, the outer periphery of the driving column is provided with a guide groove, the second sliding rod is fixedly provided on the mounting frame, the second sliding rod is slidably provided with a second slider, the second slider is provided with a driving rod that cooperates with the guide groove, when the second slider slides, the driving rod abuts against the side wall of the guide groove to drive the driving column to rotate, the middle part of the rotating rod is rotatably connected to the mounting frame, the two ends of the rotating rod are respectively connected to the second slider and the sliding sleeve, when the sliding sleeve slides, the rotating rod is driven to rotate, and then the second slider is driven to slide.

[0017] As a preferred embodiment of the present application, a heat conducting fin is provided between the inner tube and the outer tube.

[0018] As a preferred embodiment of the present application, a second heater and a third heater are respectively provided at the first air outlet end and the second air outlet end.

[0019] The embodiment of the present application provides a drying system for a twin washing machine, wherein a fan blows air into the air guide cavity from a first air inlet end, which is heated by a first heater and enters two washing tubs of the twin washing machine through a first air outlet end and a second air outlet end. Then, the air in the washing tub evaporates the moisture on the clothes and enters the inner tube to the exhaust gas treatment device, while the fan again inhales fresh air through the air inlet channel between the inner tube and the outer tube. In this way, the air between the two washing tubs will not flow through each other, and when the air in the washing tub flows to the outdoor environment through the inner tube, it will exchange heat with the air in the air inlet channel to recover heat and reduce heat loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a drying system of a twin washing machine provided in an embodiment of the present application;

[0021] Figure 2 for Figure 1 A cross-sectional view of a heat exchange tube in an embodiment;

[0022] Figure 3 for Figure 2 A partial view of the A in the embodiment;

[0023] Figure 4 A partial view of a drying system of a twin washing machine provided in an embodiment of the present application;

[0024] Figure 5 It is a schematic diagram of the structure of the centrifugal assembly in the embodiment of the present application;

[0025] Figure 6 for Figure 1 A schematic diagram of the structure of the fan and the air guide shell;

[0026] Figure 7 for Figure 1 A cross-sectional view of an air guide housing in an embodiment;

[0027] Figure 8 for Figure 6 A schematic structural diagram of the third wind shield in the embodiment.

[0028] In the figure:

[0029] 10. Washing tub; 100. Fan; 200. Air guide shell; 201. First air inlet; 202. First air outlet; 203. Second air outlet; 210. First cover; 220. Second cover; 211. Air distributor; 212. Air guide arc surface;

[0030] 300, heat exchange tube; 301, first tube cavity; 302, second tube cavity; 303, air inlet channel; 310, outer tube; 320, inner tube; 330, partition plate; 340, condensation box; 341, condensation sheet; 342, air outlet; 343, water outlet; 350, Tesla valve; 361, first wind shield; 362, second wind shield; 370, side pipe;

[0031] 400, driving device; 401, mounting frame; 410, driving column; 411, guide groove; 420, second sliding rod; 430, second slider; 431, driving rod; 440, rotating rod; 441, waist-shaped hole; 450, first sliding rod; 460, sliding sleeve; 461, annular groove; 470, first slider; 471, connecting part; 480, first connecting rod; 490, second connecting rod; 491, gravity ball;

[0032] 510, a first heater; 520, a second heater; 530, a third heater;

[0033] 610. The third wind deflector; 611. The main body; 612. The sealing element; 613. The fixing plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] The specific implementation of the present application is described in detail below in conjunction with specific embodiments.

[0036] like Figure 1 As shown, it is a structural schematic diagram of a drying system of a twin washing machine provided in an embodiment of the present application, the twin washing machine includes two washing tubs 10, the washing tubs are provided with air inlets and air outlets for hot air to flow in and out, a drum is rotatably arranged in the washing tub 10, and the drying system includes: a fan 100, an air guide shell 200, a first heater 510 and a heat exchange tube 300.

[0037] like Figure 6 and Figure 7 As shown, the air guide shell 200 has an air guide cavity, which is connected to a first air inlet end 201, a first air outlet end 202 and a second air outlet end 203. The first air inlet end 201 is connected to the output end of the fan 100, and the first air outlet end 202 and the second air outlet end 203 are respectively used to connect to the air inlet of a washing tub 10 of a twin washing machine.

[0038] like Figure 6 As shown, the first heater 510 is disposed in the air guide shell 200 and is located at the first air inlet end 201 .

[0039] like Figure 1 and Figure 2As shown, the heat exchange tube 300 includes an inner tube 320 and an outer tube 310 sleeved outside the inner tube 320, one end of the outer tube 310 is connected to the input end of the fan 100, and the other end is connected to the atmosphere, an air inlet channel 303 is formed between the inner tube 320 and the outer tube 310, one end of the inner tube 320 extends to the outside of the outer tube 310 and is connected to the exhaust gas treatment device, the other end of the inner tube 320 is located in the outer tube 310 and is connected to two side tubes 370, the two side tubes 370 extend outside the outer tube 310 and are respectively used to communicate with the air outlet of one washing tub 10 of the twin washing machine, and the tube body of the inner tube 320 is made of heat conductive material. It should be noted that the end of the inner tube 320 located in the outer tube 310 is not connected to the outer tube 310.

[0040] In the embodiment of the present application, the fan 100 blows air into the air guide cavity from the first air inlet end 201, which is heated by the first heater 510 and enters the two washing tubs 10 of the twin washing machine through the first air outlet end 202 and the second air outlet end 203. Then, after the air in the washing tub 10 evaporates the moisture on the clothes, it enters the inner tube 320 and leads to the exhaust gas treatment device, and the fan 100 again inhales fresh air through the air inlet channel 303 between the inner tube 320 and the outer tube 310. In this way, the air between the two washing tubs 10 will not flow through each other, and when the air in the washing tub 10 flows to the outdoor environment through the inner tube 320, it will exchange heat with the air in the air inlet channel 303 to recover heat and reduce heat loss.

[0041] like Figure 6 and Figure 7 As shown, in one example of the present application, the air guide housing 200 includes a first cover body 210 and a second cover body 220, and an air guide cavity is formed between the first cover body 210 and the second cover body 220. In this way, by separating the first cover body 210 and the second cover body 220, it is convenient to repair and replace components such as the first heater 510 in the air guide housing 200.

[0042] like Figure 6 and Figure 7 As shown, in one embodiment of the present application, a second heater 520 and a third heater 530 are respectively provided at the first air outlet end 202 and the second air outlet end 203. The air in the air guide cavity is heated twice by the second heater 520 and the third heater 530 to increase the temperature of the air entering the washing tub 10. In addition, by controlling the heating power of the second heater 520 and the third heater 530, the temperature of the air entering the two washing tubs 10 can be different to meet different usage requirements of users.

[0043] like Figure 6As shown, in some embodiments of the present application, an air distribution plate 211 is further provided in the air guide housing 200, and the air distribution plate 211 is arranged opposite to the first air inlet end 201, and one end of the air distribution plate 211 away from the first air inlet end 201 is connected to two air guide arc surfaces 212 respectively extending to both sides of the air distribution plate 211. The air entering the air guide cavity is distributed by the air distribution plate 211, and the air after distribution changes its flow direction along the air guide arc surface 212, which can reduce the flow loss of the air.

[0044] like Figures 1 to 3 As shown, as a preferred embodiment of the present application, the exhaust gas treatment device includes a condensation box 340, in which a plurality of condensation plates 341 are arranged, and a curved air guide passage is formed between the plurality of condensation plates 341, one end of the air guide passage is connected to the air outlet end of the inner layer tube 320, and the other end is connected to an air outlet hole 342.

[0045] In this embodiment, the air enters the washing tub 10 after being heated, evaporates the moisture on the clothes in the washing tub 10, and takes away the water vapor. The water vapor flows out from the air outlet end of the inner tube 320, hits the condensing sheet 341, and forms condensed water. The air continues to pass through the plurality of condensing sheets 341 to form a curved air guide path, and finally flows out from the air outlet 342. In this way, the water vapor can be condensed, the moisture in the exhaust gas can be reduced, and the impact on the environment can be reduced. Specifically, in some embodiments, a plurality of condensing sheets 341 are alternately extended from the top wall and the bottom wall of the condensing box 340 in opposite directions, and the height of the plurality of condensing sheets 341 exceeds half of the distance between the top wall and the bottom wall of the condensing box 340.

[0046] like Figure 3 As shown, as another preferred embodiment of the present application, the condensation box 340 is further provided with a water outlet 343 for condensed water to flow out, and the water outlet 343 is connected to a Tesla valve 350, and the Tesla valve 350 is used to prevent the gas in the condensation box 340 from being ejected from the water outlet 343. It can be understood that when the fluid enters from the inlet end of the Tesla valve 350, the resistance is small, but if the fluid wants to enter from the outlet end of the Tesla valve 350, the resistance encountered by the fluid will be very large, and the faster the speed of the fluid, the greater the resistance provided by the Tesla valve 350.

[0047] In this embodiment, the Tesla valve 350 is installed in reverse, and the condensed water in the condensation box 340 can slowly flow out of the Tesla valve 350, while the air with a faster flow rate will encounter greater resistance in the Tesla valve 350 and reduce the flow rate. In this way, the air flow can be prevented from spraying out of the water outlet with the condensed water.

[0048] like Figure 2 and Figure 3As shown, as a preferred embodiment of the present application, a partition plate 330 extending along the length direction of the inner tube 320 is provided in the inner tube 320, and the partition plate 330 divides the inner tube 320 into a first tube cavity 301 and a second tube cavity 302, and the first tube cavity 301 and the second tube cavity 302 are respectively used to communicate with one of the side tubes 370. In this embodiment, the partition plate 330 can prevent the air between the two washing tubs 10 of the twin washing machine from flowing into each other, thereby ensuring the independence of the two washing tubs 10.

[0049] like Figure 3 As shown, as a preferred embodiment of the present application, a first windshield plate 361 for shielding the first tube cavity 301 is rotatably provided at the outlet of the first tube cavity 301, and a second windshield plate 362 for shielding the second tube cavity 302 is rotatably provided at the outlet of the second tube cavity 302.

[0050] In this embodiment, when only the washing tub connected to the second lumen 302 is drying, the gas in the second lumen 302 will blow up the second windshield 361, and the gas in the second lumen 302 can flow out, while no gas flows out of the first lumen 301, and the first windshield 361 shields the outlet of the first lumen 301 to prevent the air in the condensation box 340 from flowing back into the first lumen 301. Similarly, when no gas flows out of the second lumen 302, the second windshield 362 shields the outlet of the second lumen 302.

[0051] like Figure 6 and Figure 7 As shown, as a preferred embodiment of the present application, the first air outlet 202 is provided with a third wind shield 610, the third wind shield 610 is rotatably connected to the air guide housing 200, a torsion spring for driving the third wind shield 610 to shield the first air outlet 202 is provided between the third wind shield 610 and the air guide housing 200, and the third wind shield 610 is connected to a driving device 400 for driving the third wind shield 610 to open the first air outlet 202. In this embodiment, when the drying function is not needed or clothes are washed, the first air outlet 202 is shielded by the third wind shield 610 to prevent a large amount of water from entering the air guide cavity, so that the drying system can be protected.

[0052] In some other embodiments, a third wind shield 610 is also provided at the second air outlet 203, and the third wind shield 610 at the second air outlet 203 is also connected to a torsion spring and a driving device 400. In this way, by shielding the first air outlet 202 or the second air outlet 203 by the third wind shield 610, the separate drying function of the two washing tubs 10 of the twin washing machine can be realized.

[0053] like Figure 8As shown, in one embodiment of the present application, the third wind deflector 610 includes a main body 611, a seal 612 is arranged on the main body 611, a fixing plate 613 is arranged at one end of the seal 612 away from the main body 611, the fixing plate 613 and the main body 611 clamp the seal 612 to fix the seal 612, and the fixing plate 613 and the main body 611 are connected by a bolt assembly.

[0054] like Figure 4 and Figure 5 As shown, as a preferred embodiment of the present application, the driving device 400 includes a centrifugal assembly and a transmission assembly, and the centrifugal assembly includes: a first sliding rod 450, a first slider 470, a first connecting rod 480, a second connecting rod 490 and a sliding sleeve 460, the first sliding rod 450 is used to be coaxially fixed with the drum of the twin washing machine and rotate with the drum, the first slider 470 is slidably arranged on the first sliding rod 450, the middle part of the second connecting rod 490 is rotatably connected to the first sliding rod 450, one end of the second connecting rod 490 is rotatably connected to one end of the first connecting rod 480, and the other end of the second connecting rod 490 is set There is a gravity ball 491, and the other end of the first connecting rod 480 is rotatably connected to the first slider 470. A crank slider structure is formed between the first slider 470, the first connecting rod 480, the second connecting rod 490 and the first sliding rod 450. The sliding sleeve 460 is rotatably sleeved on the first sliding rod 450 and can slide along the first sliding rod 450. An annular groove 461 is provided on the outer periphery of the sliding sleeve 460, and a connecting portion 471 that is buckled into the annular groove 461 is provided on the second slider 430. When the sliding sleeve 460 slides along the first connecting rod 480, the third windshield 610 is driven to rotate through the transmission assembly.

[0055] In this embodiment, the air entering the washing tub 10 is heated to a high temperature. When the drum of the washing tub 10 drives the clothes to rotate slowly, a large amount of hot air is blown into the same place of the clothes, which is easy to cause damage to the clothes. The crank slider structure composed of the first slider 470, the first connecting rod 480, the second connecting rod 490 and the first sliding rod 450 in the centrifugal device rotates with the drum. When the gravity ball 491 rotates, it drives the second connecting rod 490 to rotate under the action of centrifugal force. The second connecting rod 490 drives the first slider 470 to move through the first connecting rod 480. Since the connecting portion 471 is clamped in the annular groove 461, when the first slider 470 slides, it will pull the sliding sleeve 460 to slide along the first connecting rod 480, and drive the third wind deflector 610 to rotate through the transmission assembly. When the rotation speed of the drum is higher, the centrifugal force on the gravity ball 491 is greater, and the centrifugal force is transmitted to the third wind deflector 610, causing the torsion spring on the third wind deflector 610 to produce a larger deformation, and the third wind deflector 610 is opened at a larger angle. In this way, the size of the first air outlet end 202 and the second air outlet end 203 can be adjusted according to the rotation speed of the drum to control the air output.

[0056] It should be noted that the sliding sleeve 460 is rotatably sleeved on the first sliding rod 450 and can slide along the first sliding rod 450, so that when the first sliding rod 450 rotates along with the roller, the sliding sleeve 460 will not rotate along with the first sliding rod 450. In addition, a circular groove 461 is provided on the outer periphery of the sliding sleeve 460, and a connecting portion 471 that is buckled and connected to the circular groove 461 is provided on the first slider 470, so that when the first slider 470 rotates along with the first sliding rod 450, the connecting portion 471 moves along the circular groove 461 and will not drive the sliding sleeve 460 to rotate. However, when the first slider 470 slides along the first sliding rod 450, the connecting portion 471 abuts against the side wall of the circular groove 461 to drive the sliding sleeve 460 to slide.

[0057] like Figure 4 and Figure 5As shown, as a preferred embodiment of the present application, the transmission assembly includes a mounting frame 401, a driving column 410, a second sliding rod 420, a second slider 430 and a rotating rod 440, the mounting frame 401 is used to be fixedly connected to the washing tub 10, the driving column 410 is coaxially fixedly connected to the rotating shaft of the third wind deflector 610, the outer periphery of the driving column 410 is provided with a guide groove 411, the second sliding rod 420 is fixedly arranged on the mounting frame 401, and the second slider 430 is slidably arranged on the second sliding rod 420. 0, the second slider 430 is provided with a driving rod 431 that cooperates with the guide groove 411. When the second slider 430 slides, the driving rod 431 abuts against the side wall of the guide groove 411 to drive the driving column 410 to rotate. The middle part of the rotating rod 440 is rotatably connected to the mounting frame 401. The two ends of the rotating rod 440 are respectively connected to the second slider 430 and the sliding sleeve 460. When the sliding sleeve 460 slides, the rotating rod 440 is driven to rotate, thereby driving the second slider 430 to slide. Specifically, in some embodiments, waist-shaped holes 441 are respectively provided at the two ends of the rotating rod 440. The second slider 430 and the sliding sleeve 460 are respectively provided with a connecting column that penetrates one of the waist-shaped holes 441 of the side tube. The connecting column slides along the waist-shaped hole 441 to prevent interference.

[0058] In this embodiment, the middle part of the rotating rod 440 is hingedly mounted on the mounting frame 401, and the sliding sleeve 460 drives the rotating rod 440 to rotate when sliding, and the rotating rod 440 drives the second slider 430 to slide. When the second slider 430 slides, the driving rod 431 abuts against the side wall of the guide groove 411 to drive the driving column 410 to rotate, and then drives the third wind shield plate 610 to rotate to adjust the size of the first air outlet end 202 or the second air outlet end 203.

[0059] In some embodiments of the present application, a heat conducting fin is provided between the inner tube 320 and the outer tube 310. In this way, the heat exchange efficiency between the air in the inner tube 320 and the air in the air inlet channel 303 can be improved, thereby improving the effect of heat energy recovery.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drying system for a twin washing machine, the twin washing machine comprising two washing tubs, the washing tubs being provided with air inlets and air outlets for hot air to flow in and out, characterized in that: The drying system comprises: Fan; An air guide shell having an air guide cavity, wherein the air guide cavity is connected with a first air inlet end, a first air outlet end and a second air outlet end, wherein the first air inlet end is connected with an output end of the fan, and the first air outlet end and the second air outlet end are respectively used to be connected with an air inlet of a washing tub; a first heater, disposed in the air guide housing and located at the first air inlet end; A heat exchange tube, the heat exchange tube comprises an inner tube and an outer tube sleeved on the outside of the inner tube, one end of the outer tube is connected to the input end of the fan, and the other end is connected to the atmosphere, an air inlet channel is formed between the inner tube and the outer tube, one end of the inner tube extends to the outside of the outer tube and is connected to an exhaust gas treatment device, the other end of the inner tube is located in the outer tube and is connected to two side tubes, the two side tubes extend to the outside of the outer tube and are respectively used to be connected to an air outlet of a washing tub, and the tube body of the inner tube is made of heat conductive material.

2. A drying system for a twin washing machine according to claim 1, characterized in that: The exhaust gas treatment device includes a condensation box, in which a plurality of condensation sheets are arranged, a curved air guide passage is formed between the plurality of condensation sheets, one end of the air guide passage is connected to the air outlet end of the inner layer tube, and the other end is connected to an air outlet hole.

3. A drying system for a twin washing machine according to claim 2, characterized in that: The condensation box is also provided with a water outlet hole for condensed water to flow out, and the water outlet hole is connected to a Tesla valve, and the Tesla valve is used to prevent the gas in the condensation box from spraying out from the water outlet hole.

4. A drying system for a twin washing machine according to claim 3, characterized in that: The inner tube is provided with a partition plate extending along the length direction of the inner tube, and the partition plate divides the inner tube into a first tube cavity and a second tube cavity, and the first tube cavity and the second tube cavity are respectively connected to one of the side tubes.

5. A drying system for a twin washing machine according to claim 4, characterized in that: A first windshield plate for shielding the first tube cavity is rotatably provided at the outlet of the first tube cavity, and a second windshield plate for shielding the second tube cavity is rotatably provided at the outlet of the second tube cavity.

6. A drying system for a twin washing machine according to claim 1, characterized in that: The first air outlet end is provided with a third wind shield plate, and the third wind shield plate is rotatably connected to the air guide shell. A torsion spring is provided between the third wind shield plate and the air guide shell to drive the third wind shield plate to close the first air outlet end. The third wind shield plate is connected to a driving device for driving the third wind shield plate to open the first air outlet end.

7. A drying system for a twin washing machine according to claim 6, characterized in that: The driving device includes a centrifugal component and a transmission component, and the centrifugal component includes: a first sliding rod, a first slider, a first connecting rod, a second connecting rod and a sliding sleeve, the first sliding rod is used to be coaxially fixed with the drum of the twin washing machine and rotate with the drum, the first slider is slidably arranged on the first sliding rod, the middle part of the second connecting rod is rotatably connected to the first sliding rod, one end of the second connecting rod is rotatably connected to one end of the first connecting rod, the other end of the second connecting rod is provided with a gravity ball, the other end of the first connecting rod is rotatably connected to the first slider, a crank slider structure is formed among the first slider, the first connecting rod, the second connecting rod and the first sliding rod, the sliding sleeve is rotatably sleeved on the first sliding rod and can slide along the first sliding rod, an annular groove is arranged on the outer periphery of the sliding sleeve, and a connecting portion buckled with the annular groove is arranged on the second slider, and when the sliding sleeve slides along the first connecting rod, the third wind deflector is driven to rotate through the transmission assembly.

8. A drying system for a twin washing machine according to claim 7, characterized in that: The transmission assembly includes a mounting frame, a driving column, a second sliding rod, a second slider and a rotating rod, the mounting frame is used to be fixedly connected to the washing tub, the driving column is coaxially fixedly connected to the rotating shaft of the third wind deflector, the outer periphery of the driving column is provided with a guide groove, the second sliding rod is fixedly provided on the mounting frame, the second sliding rod is slidably provided with a second slider, the second slider is provided with a driving rod that cooperates with the guide groove, when the second slider slides, the driving rod abuts against the side wall of the guide groove to drive the driving column to rotate, the middle part of the rotating rod is rotatably connected to the mounting frame, the two ends of the rotating rod are respectively connected to the second slider and the sliding sleeve, when the sliding sleeve slides, the rotating rod is driven to rotate, and then the second slider is driven to slide.

9. A drying system for a twin washing machine according to claim 1, characterized in that: A heat conducting fin is arranged between the inner tube and the outer tube.

10. A drying system for a twin washing machine according to claim 1, characterized in that: A second heater and a third heater are respectively disposed at the first air outlet end and the second air outlet end.

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