An internal circulation clothes dryer

Abstract

This utility model relates to the field of commercial electrical appliance technology and discloses an internal circulation clothes dryer, including a dryer body. The dryer body contains a drum, a gas heating chamber, and a condenser. A gas conveying mechanism and a heating element are installed on the gas heating chamber. A gas preheating mechanism is installed on the gas conveying mechanism. A steam conveying mechanism connects the drum, the gas preheating mechanism, and the condenser. A connecting component is connected to the bottom of the condenser via a pipe. The condenser is connected to a condensate recovery tank via the connecting component, and a filter component is installed on the condensate recovery tank. In this utility model, the waste heat of steam is used to preheat the gas through a circulation pipe and metal guide plates, improving heating efficiency and reducing energy consumption. Furthermore, a detachable connecting structure and a sliding sleeve design allow for quick assembly and disassembly of the condensate recovery tank, ensuring airtightness and optimizing the user experience.

Description

Technical Field

[0001] This utility model relates to the field of commercial electrical appliance technology, and in particular to an internal circulation clothes dryer. Background Technology

[0002] An internal circulation clothes dryer is a commercial device that efficiently dries clothes through a closed air circulation system. Its unique feature is its ability to effectively recover and utilize heat and moisture, preventing direct release of moisture and heat into the external environment. It is ideal for commercial locations requiring efficient and energy-saving drying, especially facilities or spaces without external exhaust ducts.

[0003] In the existing technology system, there are three common types of clothes dryers: ventilated dryers, condenser dryers, and heat pump dryers. Condenser dryers heat air before it enters the drum to evaporate the moisture in the clothes. The water vapor produced by evaporation is cooled by a condenser, and the moisture is converted into liquid water and collected in a water tank. The dried air is then recycled.

[0004] Condenser dryers heat the air only once before using it directly. Although the evaporated water vapor contains a lot of residual heat, it is usually not recovered and is directly discharged into the condenser. This direct loss of steam heat not only wastes heat but also increases the operating cost of the equipment. The condensate of existing dryers is mostly collected directly in the water tank, which usually has a fixed structure. Users need to disassemble and reassemble it with great effort when cleaning the condensate, and sometimes it is easy to cause the water tank to not be sealed properly or leak. Therefore, an internal circulation clothes dryer is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an internal circulation clothes dryer, which aims to improve the problems of low efficiency in utilizing the waste heat carried by water vapor and inconvenience in handling condensate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an internal circulation clothes dryer, comprising a dryer body, wherein a drum, a gas heating chamber and a condenser are arranged inside the dryer body, a gas conveying mechanism is arranged on the gas heating chamber, a heating component is arranged on the gas heating chamber, a gas preheating mechanism is arranged on the gas conveying mechanism, a steam conveying mechanism is arranged between the drum, the gas preheating mechanism and the condenser, a connecting component is connected to the bottom of the condenser through a pipe, and a condensate recovery tank is connected to the condensate recovery tank through the connecting component, and a filter component is arranged on the condensate recovery tank;

[0007] The filtration assembly includes a filter box, which is mounted on the condensate recovery tank. The top of the filter box is connected to a cover plate via a hinge. An inclined platform is provided on the inner bottom wall of the filter box. Multiple slots are equally spaced on the inclined platform, and each slot contains a frame. A primary filter screen and an activated carbon filter screen are respectively installed inside the frame.

[0008] As a further description of the above technical solution:

[0009] The gas delivery mechanism includes an air pump, which is mounted on the gas heating chamber. A gas delivery pipe is provided between the output end of the air pump and the drum. An air extraction hopper is provided inside the dryer body. A gas delivery pipe is provided between the air extraction hopper and the gas heating chamber. A placement block is provided on the gas delivery pipe. A fan is provided inside the placement block. An air filter is provided inside the air extraction hopper.

[0010] As a further description of the above technical solution:

[0011] The heating assembly includes multiple resistance heating wires, and the gas heating chamber has multiple installation compartments, with the multiple resistance heating wires respectively installed in the installation compartments.

[0012] As a further description of the above technical solution:

[0013] The gas preheating mechanism includes a preheating installation pipe, which is installed on the gas delivery pipe. A circulation pipe and a metal guide plate are arranged sequentially from the outside to the inside of the preheating installation pipe.

[0014] As a further description of the above technical solution:

[0015] The steam conveying mechanism includes a second air pump, which is installed inside the dryer body. A first steam conveying pipe is provided between the input end of the second air pump and the drum, a second steam conveying pipe is provided between the output end of the second air pump and the circulation pipe, and a third steam conveying pipe is provided between the condenser and the circulation pipe.

[0016] As a further description of the above technical solution:

[0017] The connecting component includes a first connecting pipe, which is connected to the condenser via a pipe. A second connecting pipe is installed inside the first connecting pipe. Multiple first connecting grooves are arranged in a ring on the first connecting pipe. A second connecting groove is arranged in a ring on the second connecting pipe. Each first connecting groove contains a connecting steel ball. A sliding sleeve is connected to the outside of the first connecting pipe via a connecting spring. The second connecting pipe is installed on the filter box.

[0018] As a further description of the above technical solution:

[0019] The inner top wall of the condensate recovery tank is equipped with an ultraviolet disinfection lamp, and the inner wall of the condensate recovery tank is equipped with a water level sensor.

[0020] As a further description of the above technical solution:

[0021] The dryer body is equipped with a power supply device inside, and a control panel is located on the front side of the dryer body.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the waste heat of water vapor is fully utilized to preheat the gas by using the circulation pipe and metal guide plate in the preheating installation pipe, which not only improves the heating efficiency, but also avoids a large amount of heat loss, thus solving the problems of low thermal energy utilization and high energy consumption in the prior art.

[0024] 2. In this utility model, the detachable connection structure of the connecting pipe one and the connecting pipe two, as well as the cooperation between the sliding sleeve and the connecting spring, realizes the quick assembly and disassembly of the condensate recovery box and ensures its sealing performance, so that users can quickly take out the condensate recovery box and improve the user experience. Attached Figure Description

[0025] Figure 1 This is a perspective view of an internal circulation clothes dryer proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of an internal circulation clothes dryer proposed in this utility model;

[0027] Figure 3 This is a schematic diagram showing the disassembled structure of the gas delivery mechanism of an internal circulation clothes dryer proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the gas preheating mechanism of an internal circulation clothes dryer proposed in this utility model;

[0029] Figure 5 This is a cross-sectional structural diagram of the condensate recovery tank of an internal circulation clothes dryer proposed in this utility model;

[0030] Figure 6 This is a schematic diagram of the filter assembly structure of an internal circulation clothes dryer proposed in this utility model;

[0031] Figure 7 This is a schematic diagram of the connecting component structure of an internal circulation clothes dryer proposed in this utility model.

[0032] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0033] Legend:

[0034] 1. Dryer body; 2. Drum; 3. Gas conveying mechanism; 301. Exhaust hopper; 302. Air filter; 303. Gas conveying pipe one; 304. Placement block; 305. Fan; 306. Air pump one; 307. Gas conveying pipe two; 4. Gas heating chamber; 5. Heating assembly; 501. Mounting chamber; 502. Resistance heating wire; 6. Gas preheating mechanism; 601. Preheating mounting pipe; 602. Circulation pipe; 603. Metal guide plate; 7. Condenser; 8. Steam conveying mechanism; 801. Steam conveying pipe one; 802. Steam conveying pipe two; 803. Steam conveying pipe three 804. Air Pump II; 9. Condensate Recovery Tank; 10. Filter Assembly; 1001. Filter Box; 1002. Cover Plate; 1003. Tilting Platform; 1004. Slot; 1005. Frame; 1006. Activated Carbon Filter; 1007. Primary Filter; 11. Ultraviolet Disinfection Lamp; 12. Water Level Sensor; 13. Control Panel; 14. Power Supply Equipment; 15. Connecting Assembly; 1501. Connecting Pipe I; 1502. Connecting Pipe II; 1503. Connecting Groove I; 1504. Connecting Groove II; 1505. Connecting Steel Ball; 1506. Sliding Sleeve; 1507. Connecting Spring. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model is provided: an internal circulation clothes dryer, including a dryer body 1, a drum 2, a gas heating chamber 4 and a condenser 7 are provided inside the dryer body 1, a gas conveying mechanism 3 is provided on the gas heating chamber 4, a power supply device 14 is provided inside the dryer body 1, and a control panel 13 is provided on the front side of the dryer body 1.

[0037] The gas conveying mechanism 3 includes an air pump 306, which is installed on the gas heating chamber 4. A gas conveying pipe 307 is provided between the output end of the air pump 306 and the drum 2. An air extraction hopper 301 is provided inside the dryer body 1. A gas conveying pipe 303 is provided between the air extraction hopper 301 and the gas heating chamber 4. A placement block 304 is provided on the gas conveying pipe 303. A fan 305 is provided inside the placement block 304. An air filter 302 is provided inside the air extraction hopper 301.

[0038] Specifically, the dryer body 1 serves as the basic framework of the entire equipment, which can accommodate and protect the internal equipment. The drum 2 is the component that directly dries the clothes. The power supply equipment 14 provides stable power support for the operation of the entire dryer and has multiple safety protection functions such as overload protection and short circuit protection. The control panel 13 is the interface for users to interact with the dryer.

[0039] The gas heating chamber 4 is used to store the air drawn by the fan 305 and to heat it. The air pump 306 serves as the power source for conveying the heated gas from inside the gas heating chamber 4 to the roller 2 through the gas delivery pipe 307. The placement block 304 is used to install the fan 305. The fan 305 provides strong suction to draw outside air into the gas heating chamber 4. The gas delivery pipe 303 serves as a connection. The air extraction hopper 301 is used to install the air filter 302. The air filter 302 can filter impurities in the air to prevent them from entering the gas delivery pipe 303 and causing blockage.

[0040] Reference Figure 2 and Figure 3 The gas heating chamber 4 is equipped with a heating component 5, which includes multiple resistance heating wires 502. Multiple installation chambers 501 are provided inside the gas heating chamber 4, and the multiple resistance heating wires 502 are respectively installed in the installation chambers 501.

[0041] Specifically, the installation compartment 501 is provided to house the resistance heating wire 502. As a heating element, the resistance heating wire 502 is a key component for ensuring that the gas heating compartment 4 can be heated.

[0042] Reference Figure 3 and Figure 4 The gas conveying mechanism 3 is equipped with a gas preheating mechanism 6. The gas preheating mechanism 6 includes a preheating installation pipe 601, which is installed on the gas conveying pipe 303. A circulation pipe 602 and a metal guide plate 603 are arranged sequentially from the outside to the inside of the preheating installation pipe 601.

[0043] Specifically, the preheating installation pipe 601 is made of insulation material, which can effectively prevent heat loss. The preheating installation pipe 601 provides a foundation for the installation of the circulation pipe 602 and the metal guide plate 603. The circulation pipe 602 uses its own pipe trajectory to extend the residence time of steam in the preheating installation pipe 601. The metal guide plate 603 can effectively receive the heat of the steam and transfer it to the gas delivery pipe 303, thereby preheating the gas that has entered the gas heating chamber 4 beforehand.

[0044] Reference Figure 1 and Figure 2A steam conveying mechanism 8 is provided between the drum 2, the gas preheating mechanism 6, and the condenser 7. The steam conveying mechanism 8 includes a second air pump 804, which is installed inside the dryer body 1. A first steam conveying pipe 801 is provided between the input end of the second air pump 804 and the drum 2. A second steam conveying pipe 802 is provided between the output end of the second air pump 804 and the circulation pipe 602. A third steam conveying pipe 803 is provided between the condenser 7 and the circulation pipe 602.

[0045] Specifically, the second air pump 804 serves as the power source for steam transportation. Through the connection of the first steam transportation pipe 801, the second steam transportation pipe 802, and the third steam transportation pipe 803, the steam generated by the drum 2 can flow to the circulation pipe 602 midway and finally enter the condenser 7 for condensation.

[0046] Reference Figure 2 , Figure 5 , Figure 7 and Figure 8 The bottom of the condenser 7 is connected to a connecting assembly 15 via a pipe. The connecting assembly 15 includes a first connecting pipe 1501, which is connected to the condenser 7 via a pipe. A second connecting pipe 1502 is provided inside the first connecting pipe 1501. Multiple first connecting grooves 1503 are arranged in a ring on the first connecting pipe 1501. A second connecting groove 1504 is arranged in a ring on the second connecting pipe 1502. A connecting steel ball 1505 is provided in each of the first connecting grooves 1503. A sliding sleeve 1506 is connected to the outside of the first connecting pipe 1501 via a connecting spring 1507. The second connecting pipe 1502 is installed on the filter box 1001. The condenser 7 is connected to a condensate recovery box 9 via the connecting assembly 15.

[0047] The inner top wall of the condensate recovery tank 9 is equipped with an ultraviolet disinfection lamp 11, and the inner wall of the condensate recovery tank 9 is equipped with a water level sensor 12.

[0048] Specifically, the first connecting pipe 1501 serves as the mounting base for the connecting component 15, the first connecting groove 1503 is opened for connecting the steel ball 1505, the sliding sleeve 1506 provides an action point for manual operation, the connecting spring 1507 is a component that realizes the reciprocating component, and the sliding sleeve 1506 can restrict the part connecting the steel ball 1505 from entering the second connecting groove 1504, thereby fixing the second connecting pipe 1502.

[0049] The ultraviolet disinfection lamp 11 can disinfect the condensate in the condensate recovery tank 9, and the water level sensor 12 can detect the water level in the condensate recovery tank 9 and remind the user when the water in the condensate recovery tank 9 reaches the storage limit.

[0050] Reference Figure 6A filter assembly 10 is provided on the condensate recovery tank 9. The filter assembly 10 includes a filter box 1001, which is installed on the condensate recovery tank 9. The top of the filter box 1001 is connected to a cover plate 1002 via a hinge. An inclined platform 1003 is provided on the inner bottom wall of the filter box 1001. Multiple slots 1004 are equally spaced on the inclined platform 1003. Each slot 1004 is provided with a frame 1005. A primary filter screen 1007 and an activated carbon filter screen 1006 are respectively installed inside the frame 1005.

[0051] Specifically, the filter box 1001 serves as the mounting base for the filter assembly 10, while the cover plate 1002 ensures that the filter box 1001 is sealed. The slot 1004 and the frame 1005 facilitate the replacement and maintenance of the primary filter screen 1007 and the activated carbon filter screen 1006, which can filter impurities in the condensate.

[0052] Working principle: Place the clothes to be dried into the drum 2. Start the fan 305 in the placement block 304. After the fan 305 starts, it delivers outside air to the gas heating chamber 4 through the gas delivery pipe 303 and the air extraction hopper 301. After the resistance heating wire 502 is energized, the air in the gas heating chamber 4 is heated. When the air temperature reaches the specified value, the air pump 306 extracts the gas and pressurizes it to deliver it to the drum 2. The gas acts directly on the clothes through the gaps in the drum 2. The power equipment set in the dryer body 1 makes the drum 2 rotate. The clothes are dried as the drum 2 rotates.

[0053] The residual moisture in the clothes is affected by the heated gas and turns into water vapor. The water vapor carries residual heat and is then drawn by the second air pump 804 and enters the circulation pipe 602 in the preheating installation pipe 601 through the steam delivery pipe 801. When it flows in the circulation pipe 602, the metal guide plate 603 transfers heat to the first gas delivery pipe 303, so that the gas in the first gas delivery pipe 303 is preheated before entering the gas heating chamber 4.

[0054] Water vapor from the circulation pipe 602 enters the condenser 7 through steam delivery pipe 2 802 and steam delivery pipe 3 803. The water vapor condenses into water droplets in the condenser 7. The water droplets form a water flow that enters the filter box 1001 through connecting pipe 1 1501 and connecting pipe 2 1502. Guided by the inclined platform 1003, the water flow passes through the primary filter screen 1007 and the activated carbon filter screen 1006 in sequence. The filtered condensate is stored in the condensate recovery box 9. The ultraviolet disinfection lamp 11 disinfects the stored condensate.

[0055] When the condensate water reaches a certain level, the water level sensor 12 sends relevant information to the control panel 13. The information on the control panel 13 reminds people to remove the condensate water recovery tank 9. During the removal process, people slide the sliding sleeve 1506, which compresses the connecting spring 1507. At this time, the connecting pipe 2 1502 can be pulled out from the connecting pipe 1 1501. The condensate water in the removed condensate water recovery tank 9 can be used as domestic water for watering flowers, flushing toilets, etc.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An internal circulation laundry dryer comprising a dryer body (1), characterized in that: The dryer body (1) is equipped with a drum (2), a gas heating chamber (4) and a condenser (7). The gas heating chamber (4) is equipped with a gas conveying mechanism (3) and a heating component (5). The gas conveying mechanism (3) is equipped with a gas preheating mechanism (6). A steam conveying mechanism (8) is provided between the drum (2), the gas preheating mechanism (6) and the condenser (7). The bottom of the condenser (7) is connected to a connecting component (15) through a pipe. The condenser (7) is connected to a condensate recovery tank (9) through the connecting component (15). The condensate recovery tank (9) is equipped with a filter component (10). The filter assembly (10) includes a filter box (1001), which is mounted on the condensate recovery tank (9). The top of the filter box (1001) is connected to a cover plate (1002) via a hinge. An inclined platform (1003) is provided on the inner bottom wall of the filter box (1001). Multiple slots (1004) are equidistantly provided on the inclined platform (1003). Each slot (1004) is provided with a frame (1005). A primary filter screen (1007) and an activated carbon filter screen (1006) are respectively provided inside the frame (1005).

2. The internal circulation laundry dryer according to claim 1, characterized in that: The gas delivery mechanism (3) includes a first air pump (306), which is installed on the gas heating chamber (4). A second gas delivery pipe (307) is provided between the output end of the first air pump (306) and the drum (2). An air extraction hopper (301) is provided inside the dryer body (1). A first gas delivery pipe (303) is provided between the air extraction hopper (301) and the gas heating chamber (4). A placement block (304) is provided on the first gas delivery pipe (303). A fan (305) is provided inside the placement block (304). An air filter (302) is provided inside the air extraction hopper (301).

3. The internal circulation laundry dryer according to claim 1, characterized in that: The heating assembly (5) includes multiple resistance heating wires (502), and the gas heating chamber (4) has multiple installation chambers (501) with the multiple resistance heating wires (502) respectively installed in the installation chambers (501).

4. The internal circulation laundry dryer according to claim 1, characterized in that: The gas preheating mechanism (6) includes a preheating installation pipe (601), which is installed on the gas delivery pipe (303). The preheating installation pipe (601) is provided with a circulation pipe (602) and a metal guide plate (603) arranged from the outside to the inside.

5. The internal circulation laundry dryer according to claim 1, characterized in that: The steam conveying mechanism (8) includes a second air pump (804), which is installed inside the dryer body (1). A first steam conveying pipe (801) is provided between the input end of the second air pump (804) and the drum (2), and a second steam conveying pipe (802) is provided between the output end of the second air pump (804) and the circulation pipe (602). A third steam conveying pipe (803) is provided between the condenser (7) and the circulation pipe (602).

6. The internal circulation laundry dryer according to claim 1, characterized in that: The connecting component (15) includes a connecting pipe one (1501), which is connected to the condenser (7) through a pipe. A connecting pipe two (1502) is provided inside the connecting pipe one (1501). Multiple connecting grooves one (1503) are arranged in a ring on the connecting pipe one (1501). A connecting groove two (1504) is arranged in a ring on the connecting pipe two (1502). A connecting steel ball (1505) is provided in each of the connecting grooves one (1503). A sliding sleeve (1506) is connected to the outside of the connecting pipe one (1501) through a connecting spring (1507). The connecting pipe two (1502) is set on the filter box (1001).

7. The internal circulation laundry dryer according to claim 1, characterized in that: The inner top wall of the condensate recovery tank (9) is equipped with an ultraviolet disinfection lamp (11), and the inner wall of the condensate recovery tank (9) is equipped with a water level sensor (12).

8. The internal circulation laundry dryer according to claim 1, characterized in that: The dryer body (1) is equipped with a power supply device (14) inside, and a control panel (13) is provided on the front side of the dryer body (1).

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