Heat exchange type drum clothes dryer

Abstract

The invention relates to the field of roller clothes dryers, in particular to a heat exchange type roller clothes dryer which comprises a clothes dryer body, a mounting shell is arranged in an inner cavity of the clothes dryer body, and a roller supporting piece is arranged on the lower portion of an inner cavity of the mounting shell. A plurality of supporting rods are fixedly connected between the bottom of the roller supporting piece and the bottom of the inner wall of the clothes dryer body, and a roller body is rotationally arranged in the mounting shell through a driving mechanism. When moisture carrying heat is discharged through a vertical pipe, the surface of an air inlet pipe makes contact with the moisture carrying heat for heat exchange, after airflow carrying heat is injected into an inner cavity of a heat exchange box, a coiled pipe is expanded to make contact with the moisture carrying heat for heat exchange, and the airflow sucked in the working process of an air heater mechanism is well heated; and therefore, energy consumed by airflow heating can be reduced, the clothes drying speed is increased, the device is more environmentally friendly, and clothes drying work is facilitated.

Description

Technical Field

[0001] This invention relates to the field of drum dryers, and more specifically to a heat exchange drum dryer. Background Technology

[0002] Clothes dryers use methods such as raising or lowering the temperature, increasing airflow speed, and expanding the evaporation area to dry clothes quickly. Common heating methods include electric heating wire heating and semiconductor (PTC) heating. Heaters composed of semiconductors facilitate automatic temperature control, are safe and reliable, and are not limited by weather conditions. They are effective equipment for reducing large drying areas and providing drying at any time, making them most suitable for hotels, restaurants, inns, guesthouses, hospitals, and laundries to dry clothes in a short time.

[0003] Chinese patent CN21 (38) 35987U discloses an axial air intake clothes dryer structure. In this technical solution, when wet clothes are loaded into the dryer, the dryer drum rotates and some clothes will stick to the drum wall. At this time, a large cavity will be formed in the center of the drum. The heat energy of the heater at the rear of the drum is drawn into the drum by the axial air intake of the fan. The heat energy penetrates the clothes being dried from the central cavity of the drum. The moisture on the clothes is discharged from the mesh part at the front of the surrounding plate. The mesh at the rear of the drum is not perforated. In this way, the heat energy at the rear of the drum can be completely absorbed into the drum, reducing heat loss, increasing drying speed and reducing energy consumption, without causing uneven heating of clothes in the drum. However, this heat exchange drum dryer does not have the function of recovering and reusing waste heat during use. As a result, the moisture from the clothes carrying heat is directly discharged during use, while the cooler air is drawn in and needs to be reheated. This consumes a lot of energy and reduces the drying efficiency, which is not conducive to the drying of clothes.

[0004] Therefore, it is necessary to invent a heat exchange type drum dryer to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a heat exchange drum dryer that can reduce the energy consumption of heating the airflow by better heating the airflow during the operation of the hot air blower mechanism, thereby solving the problem of high energy consumption and reduced drying efficiency of existing heat exchange drum dryers.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heat exchange drum dryer, comprising a dryer body, an installation shell provided in the inner cavity of the dryer body, a drum support member provided in the lower part of the inner cavity of the installation shell, a plurality of support rods fixedly connected between the bottom of the drum support member and the bottom of the inner wall of the dryer body, and a drum body being rotatably arranged inside the installation shell by a drive mechanism. The inner cavity of the mounting housing is fixedly connected to a receiving plate located at the rear end of the roller body via a bracket. The inner cavity of the receiving plate is provided with a hot air blower mechanism. Several exhaust holes are opened on the front side of the receiving plate, and several air injection holes are opened on the rear end face of the roller body. The top of the dryer body is provided with a heat exchange box, and the lower part of the inner cavity of the heat exchange box is provided with a serpentine tube. The top of the inner cavity of the mounting housing is provided with a dehumidifying assembly. The side wall of the drum body is provided with several dehumidification holes corresponding to the dehumidifying assembly. The top of the dehumidifying assembly is connected to the inner cavity of the heat exchange box through a vertical pipe. The top of the receiving tray is connected to an air inlet pipe. The other end of the air inlet pipe extends through the interior of the vertical pipe to the inner cavity of the heat exchange box and is connected to the serpentine tube. The inner cavity of the heat exchange box is provided with a brush plate mechanism that drives the brushing of the surface of the serpentine tube.

[0007] In a preferred embodiment of the present invention, the driving mechanism includes a transmission rod and a first motor. The transmission rod is fixedly connected to the rear end face of the roller body, and the first motor is fixedly connected to the bottom of the inner wall of the mounting housing. The rear end of the transmission rod passes through the interior of the receiving plate, and pulleys are fixedly connected to the output shaft of the first motor at the rear end of the transmission rod. The two pulleys are connected by a transmission belt.

[0008] As a preferred embodiment of the present invention, the hot air blower mechanism includes a fixed frame, a plurality of blower bodies and a heating component. The fixed frame is fixedly connected to the rear side of the inner cavity of the receiving tray, the plurality of blower bodies are fixedly connected to the side wall of the fixed frame, and the heating component is fixedly connected to the front side of the inner cavity of the receiving tray.

[0009] In a preferred embodiment of the present invention, the rear end face of the heat exchange box is provided with an air inlet window and an exhaust window, the other end of the serpentine tube is connected to the air inlet window, and the exhaust window is connected to the inner cavity of the heat exchange box.

[0010] As a preferred embodiment of the present invention, a drain pipe is connected to the bottom of one side of the heat exchange box, a valve is provided on the drain pipe, and a flange is provided at the other end of the drain pipe.

[0011] In a preferred embodiment of the present invention, the brush plate mechanism includes a threaded rod, a second motor, a threaded sleeve, and a brush plate. A receiving cavity is provided on the upper part of the other side of the heat exchange box cavity. The second motor is fixedly connected to the rear end of the inner wall of the receiving cavity. The threaded rod is fixedly connected to the output shaft of the second motor. The threaded sleeve is threadedly connected to the surface of the threaded rod. The brush plate is fixedly connected to the side wall of the threaded sleeve, and its other end extends into the inner cavity of the heat exchange box, with the bristles on its lower surface contacting the surface of the serpentine tube.

[0012] As a preferred embodiment of the present invention, the sidewall of the receiving cavity is provided with a guide opening laterally along the length direction of the heat exchange box, and the other end of the brush plate extends into the inner cavity of the heat exchange box through the interior of the guide opening.

[0013] As a preferred embodiment of the present invention, the front end face of the dryer body is provided with a door, and the door is provided with a locking handle adapted to the dryer body.

[0014] As a preferred embodiment of the present invention, a control panel is provided on the top of the front face of the dryer body, and a plurality of anti-slip pads are fixedly connected to the bottom of the dryer body.

[0015] As a preferred embodiment of the present invention, the top of the heat exchange box is provided with a maintenance cover plate by means of several bolts.

[0016] Compared with the prior art, the technical effects and advantages provided by the present invention in the above technical solution are as follows: After the hot air blower mechanism starts working, it draws in external airflow, heats it, and then discharges it through the exhaust port. The hot airflow discharged from the exhaust port can be injected into the inner cavity of the drum body through the air injection port, thereby drying the clothes inside the drum body. During the drying process, heat-carrying moisture from the clothes is generated inside the drum body. After the dehumidification component starts working, it can draw in the heat-carrying moisture from the inner cavity of the drum body through multiple exhaust ports and transport it to the inner cavity of the heat exchange box through multiple vertical pipes for discharge. When the heat-carrying moisture is discharged through the vertical pipes, the surface of the air inlet pipe contacts the heat-carrying moisture for heat exchange. After the heat-carrying airflow is injected into the inner cavity of the heat exchange box, the serpentine tube expands and interacts with the heat-carrying moisture. The device uses a large amount of moisture for contact heat exchange, which effectively heats the airflow drawn in by the hot air blower mechanism, thereby reducing the energy consumption of heating the airflow and increasing the drying rate of clothes. This makes the device more environmentally friendly and conducive to clothes drying. The moisture can condense on the surface of the serpentine tube during the heat exchange process, preventing moisture from affecting the surrounding environment. After condensation into water droplets, the surface of the serpentine tube can be cleaned by the brush plate mechanism, scraping off the condensate droplets, which facilitates the thorough drainage of condensate later. This also increases the contact area between the serpentine tube and the moisture during the heat exchange process, improving the heat exchange effect and facilitating waste heat recovery. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 for Figure 1 The diagram shows the structure of the air intake and exhaust windows. Figure 3 for Figure 1 The diagram shows the structure of the drum body and the dehumidification hole. Figure 4 for Figure 1 The diagram shows the structure of the drive mechanism. Figure 5 for Figure 1 The diagram shows the structure of the dehumidification assembly and the vertical pipe. Figure 6 for Figure 1 The diagram shows the structure of the roller body and the air injection hole. Figure 7 for Figure 1 The diagram shows the structure of the hot air blower mechanism. Figure 8 for Figure 1 The diagram shows the structure of the brush plate mechanism.

[0019] Explanation of reference numerals in the attached figures: 1. Dryer body; 2. Anti-slip feet; 3. Door; 4. Locking handle; 5. Control panel; 6. Mounting housing; 7. Support rod; 8. First motor; 9. Drum body; 10. Pulley; 11. Drive belt; 12. Bracket; 13. Receiving tray; 14. Air inlet pipe; 15. Fixing bracket; 16. Fan body; 17. Heating assembly; 18. Exhaust vent; 19. Drive rod; 20. Air injection port; 21. Dehumidification assembly; 22. Vertical pipe; 23. Heat exchange box; 24. Serpentine pipe; 25. Air inlet window; 26. Exhaust window; 27. Threaded rod; 28. Second motor; 29. ​​Threaded sleeve; 30. Brush plate; 31. Guide port; 32. Drain pipe; 33. Valve; 34. Flange; 35. Exhaust vent; 36. Inspection cover; 37. Bolt; 38. Drum support. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This invention provides, for example Figure 1-8 The heat exchange type drum dryer shown includes a dryer body 1, an installation housing 6 is provided in the inner cavity of the dryer body 1, a drum support member 38 is provided in the lower part of the inner cavity of the installation housing 6, and a plurality of support rods 7 are fixedly connected between the bottom of the drum support member 38 and the bottom of the inner wall of the dryer body 1. The drum body 9 is rotatably arranged inside the installation housing 6 through a drive mechanism.

[0022] The inner cavity of the housing 6 is fixedly connected to the receiving plate 13 located at the rear end of the roller body 9 via the bracket 12. The inner cavity of the receiving plate 13 is equipped with a hot air blower mechanism. Several exhaust holes 18 are opened on the front side of the receiving plate 13, and several air injection holes 20 are opened on the rear end face of the roller body 9.

[0023] The top of the dryer body 1 is provided with a heat exchange box 23, and the lower part of the inner cavity of the heat exchange box 23 is provided with a serpentine tube 24. The top of the inner cavity of the mounting housing 6 is provided with a dehumidifying component 21. The side wall of the drum body 9 is provided with several dehumidification holes 35 corresponding to the dehumidifying component 21. The top of the dehumidifying component 21 is connected to the inner cavity of the heat exchange box 23 through a vertical pipe 22. The top of the receiving tray 13 is connected with an air inlet pipe 14.

[0024] The other end of the air inlet pipe 14 extends through the interior of the vertical pipe 22 to the inner cavity of the heat exchange box 23 and is connected to the serpentine tube 24. The inner cavity of the heat exchange box 23 is provided with a brush plate mechanism that drives the brushing of the surface of the serpentine tube 24.

[0025] After the hot air blower mechanism starts working, it can draw in external airflow, heat it, and then discharge it through the exhaust port 18. The hot airflow discharged through the exhaust port 18 can be injected into the inner cavity of the drum body 9 through the air injection port 20, thereby drying the clothes in the inner cavity of the drum body 9.

[0026] During the drying process, heat-carrying moisture from the clothes is generated in the inner cavity of the drum body 9. After the dehumidification component 21 is working, it can extract the heat-carrying moisture from the inner cavity of the drum body 9 through multiple dehumidification holes 35 and transport it to the inner cavity of the heat exchange box 23 through multiple vertical pipes 22 for discharge. When the heat-carrying moisture is discharged through the vertical pipe 22, the surface of the air inlet pipe 14 contacts the heat-carrying moisture for heat exchange.

[0027] After the heat-carrying airflow is injected into the inner cavity of the heat exchange box 23, the serpentine tube 24 expands to contact and exchange heat with the heat-carrying moisture, which better heats the airflow drawn in during the operation of the hot air blower mechanism. This reduces the energy consumption of heating the airflow and increases the drying rate of clothes, making the device more green and environmentally friendly, and beneficial for clothes drying.

[0028] During the heat exchange process, moisture can condense on the surface of the serpentine tube 24, preventing moisture from affecting the surrounding environment of the device.

[0029] After condensation into water droplets, the surface of the serpentine tube 24 can be cleaned by brushing the brush plate mechanism to scrape off the condensed water droplets, which facilitates the thorough drainage of condensate in the later stage. It can also increase the contact area between the serpentine tube 24 and the moisture in the heat exchange process, improve the heat exchange effect, and facilitate the use of waste heat recovery.

[0030] Furthermore, in the above structure, the drive mechanism includes a transmission rod 19 and a first motor 8. The transmission rod 19 is fixedly connected to the rear end face of the roller body 9, and the first motor 8 is fixedly connected to the bottom of the inner wall of the mounting housing 6. The rear end of the transmission rod 19 passes through the interior of the receiving plate 13. The rear end of the transmission rod 19 and the output shaft of the first motor 8 are both fixedly connected to pulleys 10. The two pulleys 10 are connected by a transmission belt 11.

[0031] After the first motor 8 drives the pulley 10 on the surface of its output shaft to rotate, it can drive the drum body 9 to rotate through the transmission of the pulley 10 on the surface of the transmission rod 19 and the transmission belt 11, thereby facilitating the turning of clothes in the inner cavity of the drum body 9 and improving the drying effect.

[0032] Furthermore, in the above structure, the hot air blower mechanism includes a fixed frame 15, a plurality of blower bodies 16 and a heating component 17. The fixed frame 15 is fixedly connected to the rear side of the inner cavity of the receiving plate 13, the plurality of blower bodies 16 are fixedly connected to the side wall of the fixed frame 15, and the heating component 17 is fixedly connected to the front side of the inner cavity of the receiving plate 13.

[0033] After the fan body 16 rotates, the airflow inside the receiving plate 13 can be discharged through multiple exhaust holes 18. The heating component 17 heats the discharged airflow to discharge hot airflow. After the airflow inside the receiving plate 13 is discharged, a negative pressure is generated inside it, which then draws in external airflow through the air inlet pipe 14.

[0034] Furthermore, in the above structure, the rear end face of the heat exchange box 23 is provided with an air inlet window 25 and an exhaust window 26, the other end of the serpentine tube 24 is connected to the air inlet window 25, and the exhaust window 26 is connected to the inner cavity of the heat exchange box 23.

[0035] A drain pipe 32 is connected to the bottom of one side of the heat exchange box 23. A valve 33 is installed on the drain pipe 32, and a flange 34 is installed at the other end of the drain pipe 32. After opening the valve 33, the condensate in the inner cavity of the heat exchange box 23 can be discharged through the drain pipe 32.

[0036] Furthermore, in the above structure, the brush plate mechanism includes a threaded rod 27, a second motor 28, a threaded sleeve 29, and a brush plate 30. A receiving cavity is provided on the upper part of the other side of the inner cavity of the heat exchange box 23. The second motor 28 is fixedly connected to the rear end of the inner wall of the receiving cavity. The threaded rod 27 is fixedly connected to the output shaft of the second motor 28. The threaded sleeve 29 is threadedly connected to the surface of the threaded rod 27. The brush plate 30 is fixedly connected to the side wall of the threaded sleeve 29, and its other end extends into the inner cavity of the heat exchange box 23, and the bristles on its lower surface are in contact with the surface of the serpentine tube 24.

[0037] After the second motor 28 drives the threaded rod 27 to rotate, it can drive the threaded sleeve 29 to move along its surface, and then drive the brush plate 30 to move. During the movement of the brush plate 30, the bristles on its surface come into contact with the surface of the serpentine tube 24, thereby scraping off the condensed water on the surface of the serpentine tube 24.

[0038] Furthermore, in the above structure, the sidewall of the receiving cavity is laterally provided with a guide opening 31 along the length of the heat exchange box 23, and the other end of the brush plate 30 extends into the inner cavity of the heat exchange box 23 through the interior of the guide opening 31.

[0039] The guide port 31 guides and limits the movement of the brush plate 30, so that the brush plate 30 moves stably along the length of the heat exchange box 23. The positions of the air inlet 25, the exhaust 26 and the guide port 31 are all higher than the height of the condensate discharge. A water level sensor can be installed in the inner cavity of the heat exchange box 23 to remind the user to drain the water in time.

[0040] Furthermore, in the above structure, a door 3 is provided on the front end face of the dryer body 1, and a latch handle 4 adapted to the dryer body 1 is provided on the door 3. A control panel 5 is provided on the top of the front end face of the dryer body 1. Several anti-slip pads 2 are fixedly connected to the bottom of the dryer body 1. An inspection cover 36 is disassembled and provided on the top of the heat exchange box 23 by several bolts 37.

[0041] like Figure 1-8 As shown, after the first motor 8 drives the pulley 10 on its output shaft surface to rotate, it can drive the roller body 9 to rotate through the transmission belt 11 via the pulley 10 on the transmission rod 19 surface, thereby facilitating the turning of clothes in the inner cavity of the roller body 9. After the fan body 16 rotates, it can discharge the airflow in the inner cavity of the receiving tray 13 through multiple exhaust holes 18. The heating component 17 heats the discharged airflow to discharge hot airflow. After the airflow inside the receiving tray 13 is discharged, a negative pressure is generated inside it, which then draws in external airflow through the air inlet pipe 14, heats the external airflow, and discharges it through the exhaust holes 18. The hot airflow discharged from the exhaust holes 18 can be injected into the inner cavity of the roller body 9 through the air injection hole 20. The clothes inside the drum body 9 are then dried. During the drying process, heat-carrying moisture is generated inside the drum body 9. After the dehumidification component 21 is working, the heat-carrying moisture is extracted from the inside of the drum body 9 through multiple dehumidification holes 35 and transported to the inside of the heat exchange box 23 through multiple vertical pipes 22 for discharge. When the heat-carrying moisture is discharged through the vertical pipes 22, the surface of the air inlet pipe 14 contacts the heat-carrying moisture for heat exchange. After the heat-carrying airflow is injected into the inside of the heat exchange box 23, the serpentine pipe 24 expands to contact the heat-carrying moisture for heat exchange, which better heats the airflow drawn in during the operation of the hot air blower mechanism, thereby reducing the energy consumption of heating the airflow.

[0042] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heat exchange type drum dryer, comprising a dryer body (1), characterized in that: The dryer body (1) has an inner cavity with a mounting shell (6), and a roller support (38) is provided at the lower part of the inner cavity of the mounting shell (6). Several support rods (7) are fixedly connected between the bottom of the roller support (38) and the bottom of the inner wall of the dryer body (1). The roller body (9) is rotatably provided inside the mounting shell (6) through a drive mechanism. The inner cavity of the mounting housing (6) is fixedly connected to the receiving plate (13) located at the rear end of the roller body (9) by the bracket (12). The inner cavity of the receiving plate (13) is provided with a hot air blower mechanism. The front side of the receiving plate (13) is provided with a number of exhaust holes (18), and the rear end face of the roller body (9) is provided with a number of air injection holes (20). The dryer body (1) is provided with a heat exchange box (23) at the top. A serpentine tube (24) is provided at the lower part of the inner cavity of the heat exchange box (23). A dehumidifying assembly (21) is provided at the top of the inner cavity of the mounting housing (6). A number of dehumidifying holes (35) corresponding to the dehumidifying assembly (21) are opened on the side wall of the roller body (9). The top of the dehumidifying assembly (21) is connected to the inner cavity of the heat exchange box (23) through a vertical pipe (22). An air inlet pipe (14) is connected to the top of the receiving tray (13). The other end of the air inlet pipe (14) extends through the interior of the vertical pipe (22) to the inner cavity of the heat exchange box (23) and is connected to the serpentine tube (24). A brush plate mechanism for driving the brushing of the surface of the serpentine tube (24) is provided in the inner cavity of the heat exchange box (23).

2. The heat exchange drum dryer according to claim 1, characterized in that, The driving mechanism includes a transmission rod (19) and a first motor (8). The transmission rod (19) is fixedly connected to the rear end face of the roller body (9). The first motor (8) is fixedly connected to the bottom of the inner wall of the mounting housing (6). The rear end of the transmission rod (19) passes through the interior of the receiving plate (13). The rear end of the transmission rod (19) is fixedly connected to the output shaft of the first motor (8) with pulleys (10). The two pulleys (10) are connected by a transmission belt (11).

3. The heat exchange drum dryer according to claim 1, characterized in that, The hot air blower mechanism includes a fixed frame (15), a plurality of blower bodies (16) and a heating component (17). The fixed frame (15) is fixedly connected to the rear side of the inner cavity of the receiving plate (13). The plurality of blower bodies (16) are fixedly connected to the side wall of the fixed frame (15). The heating component (17) is fixedly connected to the front side of the inner cavity of the receiving plate (13).

4. The heat exchange drum dryer according to claim 1, characterized in that, The rear end face of the heat exchange box (23) is provided with an air inlet window (25) and an exhaust window (26). The other end of the serpentine tube (24) is connected to the air inlet window (25), and the exhaust window (26) is connected to the inner cavity of the heat exchange box (23).

5. The heat exchange drum dryer according to claim 1, characterized in that, The bottom of one side of the heat exchange box (23) is connected to a drain pipe (32), a valve (33) is provided on the drain pipe (32), and a flange (34) is provided at the other end of the drain pipe (32).

6. The heat exchange drum dryer according to claim 1, characterized in that, The brush plate mechanism includes a threaded rod (27), a second motor (28), a threaded sleeve (29), and a brush plate (30). A receiving cavity is provided on the upper part of the other side of the inner cavity of the heat exchange box (23). The second motor (28) is fixedly connected to the rear end of the inner wall of the receiving cavity. The threaded rod (27) is fixedly connected to the output shaft of the second motor (28). The threaded sleeve (29) is threadedly connected to the surface of the threaded rod (27). The brush plate (30) is fixedly connected to the side wall of the threaded sleeve (29), and its other end extends into the inner cavity of the heat exchange box (23). The bristles on its lower surface are in contact with the surface of the serpentine tube (24).

7. The heat exchange drum dryer according to claim 6, characterized in that, The sidewall of the receiving cavity is provided with a guide opening (31) along the length of the heat exchange box (23), and the other end of the brush plate (30) extends into the inner cavity of the heat exchange box (23) through the inside of the guide opening (31).

8. The heat exchange drum dryer according to claim 1, characterized in that, The front end of the dryer body (1) is provided with a door (3), and the door (3) is provided with a locking handle (4) that is compatible with the dryer body (1).

9. The heat exchange drum dryer according to claim 1, characterized in that, The top of the front face of the dryer body (1) is provided with a control panel (5), and a number of anti-slip pads (2) are fixedly connected to the bottom of the dryer body (1).

10. The heat exchange drum dryer according to claim 1, characterized in that, The top of the heat exchange box (23) is fitted with a maintenance cover (36) by means of several bolts (37).

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