Energy-saving circulating air duct structure of heat pump roller dryer

Abstract

The utility model provides an energy-saving circulating air duct structure of a heat pump roller dryer, which relates to the technical field of drying equipment and comprises a dryer shell component, a drying area is arranged in the dryer shell component and connected with a dust and flocculus collector, the dust and flocculus collector is connected with a steam-water separation component, and the steam-water separation component is connected with a circulating driving area. The circulation driving area is connected with a backflow channel which leads to the downwind area, and the lower portion of the downwind area leads to the drying area. The dryer has the advantages that in the drying process of the dryer, hot air circulates in the dryer all the time, water vapor is absorbed and discharged through the steam-water separation assembly, heat in the dryer cannot be taken away due to the fact that the hot air is not discharged, the evaporator can generate heat according to the actual temperature in the dryer, and the drying efficiency is improved. The evaporator does not need to start the maximum heating gear all the time, and energy conservation of the dryer and full utilization of heat are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to an energy-saving circulating air duct structure of a heat pump drum dryer. Background Art

[0002] Dryers have a wide range of uses and can be used to quickly dry clothes and other items. When drying, dryers use hot air or heating elements to continuously generate heat to achieve the drying effect. Most dryers on the market will discharge the hot air after passing through the items to be dried, which will result in a waste of heat energy. The gas inside the dryer continues to overflow, and the heating element needs to continue to generate high-temperature heat to ensure the drying effect. Therefore, the energy consumption during drying is relatively high.

[0003] The technical content disclosed in the Chinese patent document (publication number: CN211571137U, patent name: dryer) is as follows: an air inlet is provided on one side of the dryer housing, an air outlet is provided on the other side, a fan is installed at the air inlet, and a filter is installed at the air outlet. A drum is rotatably provided inside the dryer housing, and a plurality of through holes are provided on the drum. A motor is fixedly installed on the inner wall of the dryer housing, a pulley is connected to the main shaft of the motor, and a belt is connected between the pulley and the pulley mounting groove on one shaft. A UV lamp is installed on the dryer housing near the drum. The UV lamp irradiates the clothes and the drum to kill bacteria, ensure the hygiene inside the dryer, and effectively avoid secondary contamination of the clothes.

[0004] As can be seen from the above implementation scheme, the dryer shell of the dryer is provided with an air inlet on one side and an air outlet on the other side. A drum is provided inside to rotate the clothes, and a UV ultraviolet lamp is used to sterilize and dry the clothes. The air outlet takes away the water vapor while also taking away the heat inside the dryer. Therefore, the heat energy loss of the dryer is relatively large. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and sets a drying area, which is connected to a dust collector, which is connected to a steam-water separation component, which is connected to a circulation drive area, which is connected to a reflux channel, which leads to a downwind area, and the downwind area leads to a drying area. Therefore, during the drying process of the dryer, hot air is always circulated inside, while water vapor is absorbed and discharged through the steam-water separation component. Since the hot air is not discharged, it will not take away the heat inside the dryer. Therefore, the evaporator can generate heat according to the actual temperature inside the dryer, and the evaporator does not need to always use the maximum heating gear, thereby achieving energy saving and full utilization of heat in the dryer.

[0006] In order to solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] An energy-saving circulating air duct structure for a heat pump drum dryer includes a dryer housing assembly, a drying area is provided inside the dryer housing assembly, the drying area is connected to a dust collector, the dust collector is connected to a steam-water separation assembly, the steam-water separation assembly is connected to a circulating drive area, the circulating drive area is connected to a return channel, the return channel leads to a downwind area, and the downwind area leads to the drying area below.

[0008] A drum is provided inside the drying area, and the items to be dried are placed inside the drum. Hot air is blown from the downwind area to the drying area, and the moisture and dust in the drying area are brought to the dust collector and the steam-water separation component for purification and drying. The purified and dried air flows back to the downwind area through the return channel.

[0009] Furthermore, a fan is provided in the downwind area, and an evaporator is provided below the fan.

[0010] Furthermore, the drum is rotatably connected to the inside of the drying area, ventilation holes are arranged around the drum, and an inlet trapezoidal cylinder is arranged at one end of the drum. The inlet trapezoidal cylinder includes an inlet ring and a connecting ring. The diameter of the connecting ring is consistent with the diameter of the drum body, and the diameter of the inlet ring is smaller than the diameter of the connecting ring.

[0011] Furthermore, there is at least one toggle column inside the drum, the middle protrusion of the toggle column is the column top, and a first inclined surface and a second inclined surface are respectively provided on both sides of the column top, and the first inclined surface and the second inclined surface are both connected from the column top to the inner side of the drum.

[0012] Furthermore, the first inclined surface is symmetrical to the second inclined surface and has the same angle with the inner side surface of the drum;

[0013] Or, the angle between the first inclined surface and the inner side surface of the drum is greater than the angle between the second inclined surface and the inner side surface of the drum;

[0014] Alternatively, the included angle between the second inclined surface and the inner side surface of the drum is greater than the included angle between the first inclined surface and the inner side surface of the drum.

[0015] Furthermore, the dust collector includes a collection box, an air inlet duct and a dust collection groove are provided inside the collection box, a blocking block is provided above the dust collection groove, and an air outlet is provided above the blocking block.

[0016] Furthermore, the collection box is also provided with a replaceable opening and closing door, and the blocking block is slidably inserted into the collection box.

[0017] Furthermore, the circulation drive area is provided with an air duct drive assembly, which includes a fan, an exhaust duct and an air supply duct. One end of the exhaust duct is connected to the dust collector, and the other end is connected to the steam-water separation assembly. One end of the steam-water separation assembly is connected to the fan, and the other end of the fan is connected to the air supply duct. The end of the air supply duct away from the fan is connected to the return channel.

[0018] Furthermore, a circulating air duct assembly is provided inside the dryer housing assembly, the circulating air duct assembly includes a bearing, the bearing is connected to the drum, the bearing is provided above the lower partition, and a first side partition and a second side partition are provided on the side of the lower partition;

[0019] The drying area is located between the lower partition and the evaporator, the circulation driving area is located between the lower side of the lower partition and the bottom of the shell, and the reflux channel is located between the first side partition and the second side partition.

[0020] Furthermore, the roller drive assembly includes a drive motor connected to a first pulley, the first pulley is connected to a second pulley via a drive belt, the second pulley is connected to a connecting shaft, and an end of the connecting shaft away from the second pulley is connected to the roller;

[0021] A protective cover is provided on the side of the roller drive assembly away from the roller.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. A drying area is set up, which is connected to the dust collector, which is connected to the steam-water separation component, which is connected to the circulation drive area, which is connected to the return channel, which leads to the downwind area, and the downwind area leads to the drying area. Therefore, during the drying process of the dryer, hot air is always circulating inside, while water vapor is absorbed and discharged through the steam-water separation component. Because the hot air is not discharged, it will not take away the heat inside the dryer. Therefore, the evaporator can generate heat according to the actual temperature inside the dryer. The evaporator does not need to use the maximum heating gear all the time, thereby realizing energy saving and full utilization of heat of the dryer.

[0024] 2. A detachable dust collector is set up to collect the dust generated by the tumbling of the dried objects during the drying process. The barrier blocks inside the dust collector can be disassembled and replaced to ensure the stable operation of the dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the utility model and, together with the embodiments of the utility model, to explain the utility model, but do not constitute a limitation of the utility model. In the accompanying drawings:

[0026] Figure 1 This is a general schematic diagram of a drying machine according to an embodiment of the present utility model;

[0027] Figure 2 This is a perspective view of a dryer according to an embodiment of the present invention;

[0028] Figure 3 This is a cross-sectional view of a dryer according to an embodiment of the present utility model;

[0029] Figure 4 This is a schematic diagram of an explosion of a dryer according to an embodiment of the present utility model;

[0030] Figure 5 This is a schematic diagram of the drum structure of an embodiment of the utility model;

[0031] Figure 6 This is a cross-sectional view of a drum according to an embodiment of the present invention;

[0032] Figure 7 This is a schematic structural diagram of a dust collector according to an embodiment of the present utility model;

[0033] Figure 8 It is a cross-sectional view of a dust collector according to an embodiment of the present invention.

[0034] Figure: 1. Dryer housing assembly; 101. Housing; 102. Drum door; 103. Dust collector assembly and disassembly door; 2. Fan; 3. Evaporator; 4. Circulation duct assembly; 401. Bearing; 402. Lower baffle; 403. First side baffle; 404. Second side baffle; A. Drying area; B. Circulation drive area; C. Return channel; D. Downwind area; 5. Dust collector; 501. Collection box; 5011. Air inlet; 5012. Dust collection tank; 5013. Air outlet; 502. Blocking block; 503. Replacement Opening and closing door; 6. Air duct drive assembly; 601. Fan; 602. Exhaust tube; 603. Supply tube; 7. Drum; 701. Ventilation hole; 702. Toggle column; 7021. Column top; 7022. First inclined surface; 7023. Second inclined surface; 703. Inlet trapezoidal cylinder; 7031. Inlet ring; 7032. Connecting ring; 8. Drum drive assembly; 801. Drive motor; 802. First pulley; 803. Drive belt; 804. Second pulley; 805. Connecting shaft; 806. Protective cover; 9. Steam-water separation assembly. DETAILED DESCRIPTION

[0035] The preferred embodiments of the utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model and are not used to limit the utility model.

[0036] like Figures 1 to 8As shown, a heat pump drum dryer energy-saving circulation air duct structure, the heat pump system is mainly composed of four main components: evaporator, compressor, condenser and expansion valve. The refrigerant in the evaporator absorbs heat from the environment and evaporates into gas. The compressor compresses it into high-temperature and high-pressure gas, and then enters the condenser to be cooled into liquid and release heat. Finally, the liquid refrigerant is decompressed through the expansion valve and absorbs heat again. This process is circulated continuously to achieve efficient cooling and heating. The heat pump system in the utility model is mainly used for heating and provides heat energy for the inside of the drum dryer. The heat pump drum dryer energy-saving circulation air duct structure includes a dryer shell component 1. The dryer shell component 1 is provided with a drying area A. The drying area A is connected to the dust collector 5. The dust collector 5 is connected to the dust collector 5. The collector 5 is connected to the steam-water separation component 9, the steam-water separation component 9 is connected to the circulation drive area B, the circulation drive area B is connected to the return channel C, the return channel C leads to the downwind area D, and the downwind area D leads to the drying area A; a circulation air duct component 4 is arranged inside the dryer shell component 1, and the circulation air duct component 4 includes a bearing 401, the bearing 401 is connected to the drum 7, the bearing 401 is arranged above the lower partition 402, and a first side partition 403 and a second side partition 404 are arranged on the side of the lower partition 402; the drying area A is located between the lower partition 402 and the evaporator 3, the circulation drive area B is located between the lower side of the lower partition 402 and the bottom of the shell 101, and the return channel C is located between the first side partition 403 and the second side partition 404. Downwind zone D is equipped with a fan 2, and below it is an evaporator 3. Items to be dried are placed inside drum 7. Hot air is blown from downwind zone D into drying zone A, carrying moisture and dust from drying zone A to dust collector 5 and water-vapor separator 9 for purification and drying. The purified and dried air then flows back to downwind zone D through return channel C. Therefore, during the drying process, hot air constantly circulates within the dryer, while moisture is absorbed by water-vapor separator 9 and discharged. Because the hot air isn't discharged, it doesn't remove heat from the dryer. Drying zone A is also equipped with a temperature sensor that monitors the temperature in real time. Therefore, evaporator 3 generates heat based on the actual temperature inside the dryer, eliminating the need for evaporator 3 to operate at maximum heating level all the time. This achieves energy conservation and full utilization of heat.

[0037] The drum 7 is rotatably connected to the inside of the drying area A. Ventilation holes 701 are provided around the drum 7. The ventilation holes 701 are conducive to the hot air being poured into the inside of the drum 7, and are also conducive to the water vapor inside the drum 7 being taken away by the hot air. An inlet trapezoidal cylinder 703 is provided at one end of the drum 7. The inlet trapezoidal cylinder 703 includes an inlet ring 7031 and a connecting ring 7032. The diameter of the connecting ring 7032 is consistent with the diameter of the drum body of the drum 7. The diameter of the inlet ring 7031 is smaller than the diameter of the connecting ring 7032. Therefore, an inclined surface is formed between the inlet ring 7031 and the connecting ring 7032, which is inclined from the inlet to the inside of the drum 7. In this way, when the drum 7 rotates, when the objects inside the drum 7 collide with the inlet trapezoidal cylinder 703, they will move into the inside of the drum 7 due to the inclined surface of the inlet trapezoidal cylinder 703, so that the objects can be concentrated inside the drum 7 for drying.

[0038] The drum 7 is provided with at least one actuating post 702. A protrusion in the middle of the actuating post 702 is a post top 7021. A first inclined surface 7022 and a second inclined surface 7023 are provided on either side of the post top 7021. Both the first inclined surface 7022 and the second inclined surface 7023 connect from the post top 7021 to the inner side of the drum 7. As the drum 7 rotates, the actuating post 702 is used to actuate items within the drum 7, causing them to be thrown down from a high position by the drum 7. This disperses the items within the drum 7 and allows for rapid evaporation of water vapor.

[0039] In the first embodiment of the toggle post 702, the first inclined surface 7022 and the second inclined surface 7023 are symmetrical and have the same angle with the inner side surface of the drum 7; thus, whether the drum 7 rotates clockwise or counterclockwise, the force exerted by the drum 7 on the objects is the same.

[0040] In the second embodiment of the toggle column 702, the angle between the first inclined surface 7022 and the inner side surface of the drum 7 is greater than the angle between the second inclined surface 7023 and the inner side surface of the drum 7; in this way, when the drum 7 rolls from the first inclined surface 7022 to the second inclined surface 7023, the force exerted by the drum 7 on the objects is large, and the drum 7 can carry more objects, while when the drum 7 rolls from the second inclined surface 7023 to the first inclined surface 7022, the force exerted by the drum 7 on the objects is small, and the drum 7 carries fewer objects when rolling.

[0041] In the third embodiment of the toggle column 702, the angle between the second inclined surface 7023 and the inner side surface of the drum 7 is greater than the angle between the first inclined surface 7022 and the inner side surface of the drum 7. In this way, when the drum 7 rolls from the first inclined surface 7022 to the second inclined surface 7023, the force exerted by the drum 7 on the objects is small, and the drum 7 can carry fewer objects. When the drum 7 rolls from the second inclined surface 7023 to the first inclined surface 7022, the force exerted by the drum 7 on the objects is large, and the drum 7 can carry more objects when rolling.

[0042] Therefore, the shapes of the toggle posts 702 may be set differently depending on the type of items to be dried, as well as the drying time and temperature.

[0043] The dust collector 5 includes a collection box 501, which is provided with an air inlet duct 5011 and a dust collection groove 5012 inside the collection box 501, a blocking block 502 is provided above the dust collection groove 5012, and an air outlet 5013 is provided above the blocking block 502. The hot air passing through the drum 7 passes through the air inlet duct 5011 and comes out of the dust collection groove 5012. At this time, the hot air needs to pass through the blocking block 502 before it can be discharged from the air outlet 5013. The blocking block 502 is made of non-woven fabric and can absorb dust in the hot air. Because the hot air enters from the bottom of the blocking block 502, the dust in the hot air will be blocked in the dust collection groove 5012.

[0044] The collection box 501 is also provided with a replaceable opening and closing door 503, and the blocking block 502 is slidably inserted into the collection box 501. The user can remove the blocking block 502 from the collection box 501 for cleaning or replacement at regular intervals to ensure that the hot air can pass through the dust collector 5 smoothly.

[0045] The dust collecting trough 5012 is provided below the blocking block 502 , which is also conducive to some clumped dust or sand falling directly into the dust collecting trough 5012 .

[0046] The circulation drive area B is provided with an air duct drive component 6, which includes a fan 601, an exhaust tube 602 and an air supply tube 603. One end of the exhaust tube 602 is connected to the dust collector 5, and the other end is connected to the steam-water separation component 9. One end of the steam-water separation component 9 is connected to the fan 601, and the other end of the fan 601 is connected to the air supply tube 603. The end of the air supply tube 603 away from the fan 601 is connected to the return channel C. The air duct drive component 6 drives the wind at the bottom of the shell 101 to flow. The air duct drive component 6 is used in conjunction with the fan 2 to form airflow inside the dryer, so that the wind can circulate inside the dryer.

[0047] The dryer housing assembly 1 includes a shell 101, and one end of the shell 101 is provided with a drum opening and closing door 102 and a dust collector disassembly door 103; the drum opening and closing door 102 is aimed at the outlet of the drum 7. By opening the drum opening and closing door 102, items can be placed in or taken out of the drum 7. By opening the dust collector disassembly door 103, the entire dust collector 5 can be taken out, thereby cleaning the dust collector 5.

[0048] The roller drive assembly 8 includes a drive motor 801, which is connected to a first pulley 802, which is connected to a second pulley 804 via a drive belt 803, and the second pulley 804 is connected to a connecting shaft 805. The end of the connecting shaft 805 away from the second pulley 804 is connected to the roller 7; therefore, the drive motor 801 can drive the roller 7 to roll, and a protective cover 806 is provided on the side of the roller drive assembly 8 away from the roller 7. The protective cover 806 protects users and maintenance personnel from being caught in the rotating first pulley 802, the second pulley 804 or the drive belt 803.

[0049] Finally, it should be noted that the above are only preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. An energy-saving circulating air duct structure for a heat pump drum dryer, characterized in that: The dryer housing assembly (1) comprises a drying area (A) provided inside the dryer housing assembly (1), the drying area (A) being connected to a dust collector (5), the dust collector (5) being connected to a steam-water separation assembly (9), the steam-water separation assembly (9) being connected to a circulation drive area (B), the circulation drive area (B) being connected to a return flow channel (C), the return flow channel (C) leading to a downwind area (D), and the downwind area (D) leading to the drying area (A). A drum (7) is provided inside the drying area (A), and articles to be dried are placed inside the drum (7). Hot air is blown from the downwind area (D) to the drying area (A), and the moisture and dust in the drying area (A) are brought to the dust collector (5) and the steam-water separation component (9) for purification and drying. The purified and dried air flows back to the downwind area (D) through the return channel (C).

2. The energy-saving circulating air duct structure of the heat pump drum dryer according to claim 1 is characterized in that: The downwind area (D) is provided with a fan (2), and an evaporator (3) is provided below the fan (2).

3. The energy-saving circulating air duct structure of the heat pump drum dryer according to claim 2 is characterized in that: The drum (7) is rotatably connected to the interior of the drying area (A). Ventilation holes (701) are provided around the drum (7). An inlet trapezoidal cylinder (703) is provided at one end of the drum (7). The inlet trapezoidal cylinder (703) comprises an inlet ring (7031) and a connecting ring (7032). The diameter of the connecting ring (7032) is consistent with the diameter of the drum body (7), and the diameter of the inlet ring (7031) is smaller than the diameter of the connecting ring (7032).

4. The energy-saving circulating air duct structure of the heat pump drum dryer according to claim 3 is characterized in that: The drum (7) is provided with at least one toggle column (702) inside, the toggle column (702) has a column top (7021) protruding in the middle, and a first inclined surface (7022) and a second inclined surface (7023) are provided on both sides of the column top (7021), and the first inclined surface (7022) and the second inclined surface (7023) are both connected from the column top (7021) to the inner side surface of the drum (7).

5. The energy-saving circulating air duct structure of the heat pump drum dryer according to claim 4 is characterized in that: The first inclined surface (7022) and the second inclined surface (7023) are symmetrical and have the same angle with the inner side surface of the drum (7); Or, the angle between the first inclined surface (7022) and the inner side surface of the drum (7) is greater than the angle between the second inclined surface (7023) and the inner side surface of the drum (7); Alternatively, the angle between the second inclined surface (7023) and the inner side surface of the drum (7) is greater than the angle between the first inclined surface (7022) and the inner side surface of the drum (7).

6. The energy-saving circulating air duct structure of a heat pump drum dryer according to any one of claims 1 to 5, characterized in that: The dust floc collector (5) comprises a collection box (501), an air inlet duct (5011) and a dust floc collection trough (5012) are provided inside the collection box (501), a barrier block (502) is provided above the dust floc collection trough (5012), and an air outlet (5013) is provided above the barrier block (502).

7. The energy-saving circulating air duct structure of the heat pump drum dryer according to claim 6, characterized in that: The collection box (501) is further provided with a replaceable opening and closing door (503), and the blocking block (502) is slidably inserted into the collection box (501).

8. The energy-saving circulating air duct structure of the heat pump drum dryer according to claim 7, characterized in that: The circulation drive area (B) is provided with an air duct drive assembly (6), which comprises a fan (601), an exhaust pipe (602) and an air supply pipe (603), one end of the exhaust pipe (602) is connected to the dust collector (5), and the other end is connected to the steam-water separation assembly (9), one end of the steam-water separation assembly (9) is connected to the fan (601), the other end of the fan (601) is connected to the air supply pipe (603), and the end of the air supply pipe (603) away from the fan (601) is connected to the return channel (C).

9. The energy-saving circulating air duct structure of the heat pump drum dryer according to claim 8, characterized in that: A circulating air duct assembly (4) is provided inside the dryer housing assembly (1), the circulating air duct assembly (4) comprising a bearing (401), the bearing (401) being connected to the drum (7), the bearing (401) being provided above the lower partition (402), and a first side partition (403) and a second side partition (404) being provided on the side of the lower partition (402); The drying zone (A) is located between the lower partition (402) and the evaporator (3), the circulation drive zone (B) is located between the lower side of the lower partition (402) and the bottom of the shell (101), and the reflux channel (C) is located between the first side partition (403) and the second side partition (404).

10. The energy-saving circulating air duct structure of a heat pump drum dryer according to any one of claims 1 to 5 and 7 to 9, characterized in that: The roller (7) is connected to a roller drive assembly (8), the roller drive assembly (8) includes a drive motor (801), the drive motor (801) is connected to a first pulley (802), the first pulley (802) is connected to a second pulley (804) via a drive belt (803), the second pulley (804) is connected to a connecting shaft (805), and the end of the connecting shaft (805) away from the second pulley (804) is connected to the roller (7); A protective cover (806) is provided on the side of the roller drive assembly (8) away from the roller (7).

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