Energy-saving clothes dryer

Abstract

The utility model discloses an energy -conserving clothes drying machine, including cylinder body subassembly, rear air intake system, heat recovery system and cilium processing subassembly etc. The inner tube and outer tube coaxial arrangement in cylinder body subassembly, and the outer tube rear end and inner tube rear end form sealed air bellow through sealing ring, and the inner tube front section and backboard all are equipped with dense mesh. The fan of rear air intake system produces airflow and enters air bellow after heating through heater, and heat recovery system is by waste heat recovery device and heat pump device, realizes heat recycling, and cilium processing subassembly contains with the integral molding of outer tube cilium collector and detachable cilium collection box. The utility model discloses through optimizing air circulation and heat recovery, significantly reduces energy consumption, and the multilayer filter structure effectively handles cilium impurity, and the intelligent temperature control system guarantees the drying effect, and has the characteristics of efficient energy -conserving and practical convenient.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically an energy-saving drying machine mainly used in the garment manufacturing industry, dry cleaning and wet cleaning industry, and linen production and cleaning industry. Background Technology

[0002] In the garment manufacturing, dry cleaning and laundry, and linen production and cleaning industries, the performance of drying equipment plays a crucial role in production efficiency, cost control, and product quality. Currently, the traditional dryers that dominate the market have some limitations in terms of structure and working principle, leading to numerous problems in practical applications.

[0003] Structure and working principle of traditional dryers: Most existing traditional dryers adopt a top-intake design, with the heater located at the top of the equipment. The inner drum has a fully perforated structure, but the back plate is not perforated, and the fan is mostly located at the exhaust vent. During operation, the fan at the exhaust vent blows air outward, creating a negative pressure inside the equipment, which draws in air from inside the drum and hot air heated by the top heater. After being heated by the top heater, the hot air is forced from the outer drum into the inner drum, acting on the surface of the clothes to achieve drying. During the drying process, the hot air passes through the inner drum's mesh and comes into contact with the clothes, then passes through a filter plate to filter out lint, and finally is discharged from the equipment by the fan.

[0004] Defects of traditional dryers

[0005] Excessive energy consumption: The overall structure of traditional dryers results in significant heat loss, with a large amount of heat energy being directly released into the environment without being fully utilized during the drying process, leading to low energy efficiency. To accelerate the drying speed of clothes, it is often necessary to increase heating power and air volume, which further exacerbates the energy consumption problem and significantly increases operating costs. Against the backdrop of continuously rising energy costs, this issue is becoming increasingly apparent as a constraint on the industry's development.

[0006] High risk of clothing damage: Because hot air blows downwards from the top and is at a high temperature, the surface of clothing is easily damaged by localized high temperatures during the drying process, resulting in burns, glue separation, and other issues. For some clothing and linens made of special materials or of high value, this risk may reduce the appearance and lifespan of the items, and even lead to customer complaints, causing economic losses and reputational damage to the relevant companies.

[0007] Low drying efficiency: Due to limitations in its structure and operating method, traditional dryers have a slow drying speed. The longer drying time not only reduces production efficiency and limits the business volume that enterprises can handle per unit of time, failing to meet the industry's growing business demands, but also increases operating costs to some extent. The problem of low drying efficiency is particularly prominent in busy scenarios such as dry cleaning, wet cleaning shops, and linen cleaning.

[0008] With increasing environmental awareness and rising energy costs, industries such as garment manufacturing, dry cleaning, and linen production and cleaning urgently need a new type of dryer that can effectively solve the problems associated with traditional dryers. This new dryer should be energy-efficient and ensure that clothes are not damaged during the drying process, thereby enhancing the industry's overall competitiveness, reducing operating costs, and meeting consumers' expectations for high-quality drying services. Utility Model Content

[0009] In view of this, the purpose of this utility model is to overcome the shortcomings of existing related technologies. The utility model aims to provide an energy-saving clothes dryer to solve the problems of high energy consumption, large heat loss, high risk of damage during drying, and slow drying speed of traditional dryers. Specifically, it improves energy utilization and reduces energy consumption by optimizing the structural design and workflow, such as using waste heat, heat pump heat, and a fully enclosed condensation recovery system, as well as sealing the inner and outer drums; it changes the air intake method to avoid localized high temperatures and reduce damage to clothes; it innovates the front exhaust design to ensure even heating of clothes, and combines this with the heat recovery system to improve drying speed; it is equipped with a condensation dehumidification device and optimizes the structure of the outer drum and lint collector to improve overall performance and meet the needs of relevant industries.

[0010] To achieve the above objectives, this utility model adopts the following technical solution: an energy-saving clothes dryer, comprising:

[0011] The cylindrical assembly includes an inner cylinder with a front opening and an inner cylinder rear plate opening, and an outer cylinder coaxially arranged with the inner cylinder. The rear end of the outer cylinder and the rear end of the inner cylinder form a sealed air box through a sealing ring. The front and rear plate openings of the inner cylinder have a densely distributed mesh structure.

[0012] The rear air intake system includes a fan located on the air intake side of the air box and a heater located on the air outlet side of the fan;

[0013] Heat recovery systems include waste heat recovery devices and heat pump devices;

[0014] The lint handling assembly includes a lint collector integrally formed with the outer cylinder and a removable lint collection box.

[0015] The airflow generated by the fan is heated and then enters the air box. It enters the inner cylinder through the opening in the rear plate of the inner cylinder. The humid airflow is discharged through the front opening and then passes through the fiber treatment component and the heat recovery system in sequence to achieve recycling.

[0016] Furthermore, the heat recovery system also includes a condensation dehumidification device, and the waste heat recovery device, heat pump device, and condensation dehumidification device are connected by pipes to form a closed loop, realizing the recycling of heat.

[0017] Furthermore, the airflow generated by the fan is heated by the heater and then enters the air box. Inside the air box, the hot and cold air mixes, and the mixed air enters the inner cylinder through the mesh of the rear plate of the inner cylinder.

[0018] Furthermore, the rotation of the inner drum ensures that the clothes are heated evenly, and the humid and hot air is pushed to the front of the inner drum under pressure and discharged downward through the exhaust port at the front.

[0019] Furthermore, the dryer is a condenser dryer. The exhaust air enters the condensation dehumidification system after passing through the lint collection box. The high-pressure heat from the compressor is transferred to the fan intake via the heat pump coil and then blown into the air box for circulation.

[0020] Furthermore, the condensation recovery system includes a condenser, an evaporator, and a compressor, the condenser and the evaporator being connected by pipes, and the compressor being used to drive the refrigeration cycle.

[0021] Furthermore, it also includes a loading door and a cleaning door panel, the loading door being used to put in and take out clothing, and the cleaning door panel being used to clean the lint collection box.

[0022] Furthermore, it also includes an operating system, which includes a power switch, a buzzer, and control buttons for setting drying time, temperature, and mode.

[0023] Furthermore, the fibrous collection box is equipped with a multi-layer filtration structure, which is made of non-woven fabric or metal mesh.

[0024] Furthermore, the dryer is equipped with an intelligent temperature control system, which includes a temperature sensor and a controller. The temperature sensor is used to monitor the temperature of the inner drum, and the controller adjusts the power of the heater according to the feedback signal from the temperature sensor.

[0025] Furthermore, it also includes an electrical box for installing the electrical control components of the dryer; a radiator for dissipating heat generated by the operation of the refrigeration system; and a refrigeration system including a condenser, an evaporator, and a compressor, wherein the condenser and the evaporator are connected by pipes, the compressor is used to drive the refrigeration cycle, and the refrigeration system is connected to a condensation dehumidification device.

[0026] Furthermore, a front plate is provided at the opening of the inner cylinder, and the front plate is provided with densely packed holes.

[0027] The present invention, by adopting the above technical solution, has at least the following beneficial effects:

[0028] This invention effectively reduces heat loss and significantly improves energy utilization through the coordinated operation of a fully enclosed condensation recovery system, a heat pump heat recovery device, and a waste heat recovery unit. Compared to traditional dryers where a large amount of heat energy is directly discharged without being fully utilized, this invention can recover the waste heat from the exhaust hot air and send it back to the circulation system, avoiding energy waste. At the same time, the overall insulation structure further reduces heat loss, lowers energy consumption during the drying process, and thus significantly reduces operating costs, alleviating the pressure caused by rising energy costs.

[0029] This invention employs a rear-entry air design and a unique air box structure, ensuring thorough mixing of hot and cold air within the air box. This avoids the localized high-temperature problems caused by the top-down blowing of hot air in traditional dryers. The perforated design at the front and rear of the inner drum, combined with the drum's rotation, allows for even heating of clothes during the drying process. This significantly reduces the probability of burns, glue separation, and other damage caused by localized overheating. For special materials or high-value garments and linens, it better protects their appearance and lifespan, lowers the risk of customer complaints, and safeguards the company's reputation.

[0030] The front exhaust design of this invention allows air to flow from the rear of the inner drum forward, ensuring that each garment is heated evenly and accelerating moisture evaporation. The optimized air circulation structure, combined with the coordinated operation of the fan, heater, and air box, forms a highly efficient air circulation system. Simultaneously, the heat recovery system continuously provides heat, preventing prolonged drying time due to insufficient heat. Compared to traditional dryers, this invention effectively shortens drying time, increases throughput per unit time, meets the growing business needs of industries such as garment manufacturing, dry cleaning, and linen production and cleaning, and enhances enterprise production efficiency and competitiveness.

[0031] The lint collector integrated with the outer cylinder and the detachable lint collection box in this invention facilitate the collection and cleaning of lint and other impurities generated during the drying process, preventing lint from clogging the air duct and affecting the drying effect and normal operation of the equipment. The multi-layer filter structure further improves the impurity filtration efficiency, ensures smooth airflow inside the dryer, and also reduces the frequency and cost of equipment maintenance.

[0032] The condensation dehumidification device equipped in this invention achieves efficient dehumidification for condenser dryers, meeting the drying needs of different types of clothing and various scenarios. The operating system features a power switch, a buzzer, and control buttons for setting drying time, temperature, and mode, making operation convenient. The intelligent temperature control system monitors the inner drum temperature in real time through a temperature sensor, and the controller adjusts the heater power based on feedback signals to achieve precise temperature control, ensuring drying effectiveness while further improving energy efficiency and equipment operational stability. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is the main view of the energy-saving clothes dryer of this utility model;

[0035] Figure 2 This is a side view of the energy-saving clothes dryer of this utility model;

[0036] Figure 3 This is a rear view of the energy-saving clothes dryer of this utility model;

[0037] Figure 4 This is a top view of the energy-saving clothes dryer of this utility model.

[0038] In the diagram: 1. Loading door; 2. Cleaning door panel; 3. Operating system; 4. Power switch; 5. Buzzer; 6. Air box; 7. Inner cylinder; 8. Outer cylinder; 9. Sealing ring; 10. Fan; 11. Heater; 12. Waste heat recovery device; 13. Heat pump device; 14. Refrigeration system; 15. Filament collector; 16. Filament collection box; 17. Drain outlet; 18. Evaporator; 19. Radiator; 20. Variable frequency main motor; 21. Electrical box. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0040] like Figures 1 to 4 As shown, this embodiment provides an energy-saving clothes dryer, including: a drum assembly, including an inner drum 7 with a front opening and a rear plate opening, and an outer drum 8 coaxially arranged with the inner drum 7. The rear end of the outer drum 8 and the rear end of the inner drum 7 form a sealed air box 6 through a sealing ring 9. The front and rear plate openings of the inner drum 7 are densely packed mesh structures.

[0041] The rear air intake system includes a fan 10 located on the air intake side of the air box 6 and a heater 11 located on the air outlet side of the fan 10.

[0042] The heat recovery system includes a waste heat recovery device 12 and a heat pump device 13; the waste heat recovery device and the heat pump device are connected by pipes to form a closed loop to realize the recycling of heat.

[0043] As another implementation, the heat recovery system includes a waste heat recovery device 12, a heat pump device 13, and a condensation dehumidification device (marked in the figure); the waste heat recovery device, the heat pump device, and the condensation dehumidification device are connected by pipes to form a closed loop to realize the recycling of heat;

[0044] The lint handling assembly includes a lint collector 15 integrally formed with the outer cylinder 8 and a detachable lint collection box 16.

[0045] Electrical box 21 is used to install the electrical control components of the dryer; radiator 19 is used to dissipate the heat generated by the operation of refrigeration system 14; refrigeration system 14 includes condenser, evaporator and compressor, the condenser and evaporator are connected by pipes, the compressor is used to drive the refrigeration cycle, and the refrigeration system is connected to condensation dehumidification device;

[0046] The airflow generated by the fan 10 is heated and then enters the air box 6. It enters the inner cylinder 7 through the opening in the rear plate of the inner cylinder 7. The humid airflow is discharged through the front opening and then passes through the lint treatment assembly (lint collector 15 and lint collection box 16) and the heat recovery system (waste heat recovery device 12, heat pump device 13 and condensation dehumidification device) in sequence to achieve recycling.

[0047] In one implementation, the waste heat recovery device 12, the heat pump device 13, and the condensation dehumidification device described in this embodiment are connected by pipes to form a closed loop, thereby realizing the recycling of heat.

[0048] In one embodiment, the airflow generated by the fan 10 is heated by the heater 11 and then enters the air box 6. Inside the air box 6, hot and cold air mix, and the mixed air enters the inner cylinder 7 through the mesh openings on the rear plate. The heat collection tube is used to collect heat from the humid air discharged during the drying process and transfer it to the heat pump device.

[0049] In one implementation, the inner drum 7 rotates in this embodiment to ensure even heating of the clothing. Moist, hot air is pushed to the front of the inner drum 7 under pressure and discharged downwards through the front exhaust port. The refrigeration system uses a compressor to drive refrigerant circulation, releasing heat at the condenser to heat the air and absorbing moisture from the humid air at the evaporator.

[0050] In one implementation, the dryer in this embodiment is a condenser dryer. The exhaust air passes through the lint collector 16 and then enters the condensation dehumidification system (consisting of a condenser (not shown in the figure), an evaporator 18, and a compressor (not shown in the figure)). The high-pressure heat from the compressor is transferred to the air intake of the fan 10 via a heat pump coil, and then blown into the air box 6 for circulation. The radiator is connected to the condenser of the refrigeration system and is used to dissipate the heat generated during the condensation process.

[0051] In one implementation, the condensation recovery system in this embodiment includes a condenser, an evaporator 18, and a compressor. The condenser and the evaporator 18 are connected by pipes, and the compressor drives the refrigeration cycle. The electrical box 21 contains a control mainboard for coordinating the operation of the fan, heater, compressor, and heat pump.

[0052] As one implementation, this embodiment also includes a loading door 1 and a cleaning door panel 2. The loading door 1 is used to put in and take out clothing, and the cleaning door panel 2 is used to clean the lint collection box 16.

[0053] In one implementation, this embodiment also includes an operating system 3, which includes a power switch 4, a buzzer 5, and control buttons for setting drying time, temperature, and mode. The operating system is electrically connected to the control mainboard inside the electrical box.

[0054] In one embodiment, the lint collection box 16 in this example is equipped with a multi-layer filter structure, which is made of non-woven fabric or metal mesh. The drain outlet 17 is located at the bottom of the evaporation device 18 and is used to drain the moisture generated during the condensation process.

[0055] In one embodiment, the dryer is equipped with an intelligent temperature control system, which includes a temperature sensor and a controller. The temperature sensor is used to monitor the temperature of the inner drum 7, and the controller adjusts the power of the heater 11 according to the feedback signal from the temperature sensor.

[0056] In one embodiment, a front plate is provided at the opening of the inner cylinder, and the front plate is provided with numerous holes.

[0057] Example 2

[0058] This second embodiment, based on the first embodiment, further elaborates on the innovative technologies incorporated into its structural design and functional implementation, as detailed below:

[0059] I. Overall Structural Composition

[0060] Cylinder assembly: The inner cylinder 7 and outer cylinder 8 are coaxially arranged. The inner cylinder 7 is made of high-quality stainless steel, and the front section, rear plate, and front plate all have a densely perforated structure. The mesh in the front section and rear plate is for air circulation, while the densely perforated structure in the front plate assists in air exhaust and circulation. The rear end of the outer cylinder 8 and the rear end of the inner cylinder 7 are tightly connected by a high-temperature resistant and high-sealing sealing ring 9 to form a sealed air box 6. This air box 6 is a key area for mixing hot and cold air, providing a stable source of hot air for the subsequent drying process.

[0061] Rear air intake system: A high-efficiency energy-saving fan 10 is installed on the air intake side of the air box 6. Its energy efficiency ratio far exceeds the industry standard, providing a stable and powerful airflow. A PTC heating element is configured as a heater 11 on the air outlet side of the fan 10. The PTC heating element features rapid heating, high thermal efficiency, and good safety. The airflow generated by the fan 10, after being heated by the heater 11, directly enters the sealed air box 6.

[0062] The heat recovery system consists of a waste heat recovery device 12, a heat pump device 13, and a condensation dehumidification device. The waste heat recovery device 12 is a plate-type waste heat recovery unit, which can recover a large amount of waste heat from the exhaust humid airflow through a high-efficiency heat exchange plate; the heat pump device 13 can realize efficient heat conversion and transportation; the condensation dehumidification device includes a condenser, an evaporator 18, and a compressor connected to each other by pipes, and the three work together to achieve dehumidification of humid air.

[0063] Lint removal component: The lint collector 15 is integrally formed with the outer drum 8. During the clothes drying process, lint and other impurities generated are initially intercepted by the lint collector 15 as the airflow flows. The detachable lint collection box 16 is located below the lint collector 15. The box has a multi-layer filter structure consisting of three layers of non-woven fabric and metal mesh, which can efficiently filter lint and impurities of different sizes.

[0064] II. Work Process

[0065] After turning on the power switch 4 and setting the drying time, temperature, and mode through the operating system 3, the fan 10 starts. The generated airflow is heated by the heater 11 and becomes hot air. After entering the sealed air box 6, the hot air is fully mixed with any possible backflow of cold air to form a uniformly heated mixed air. The mixed air enters the inner drum 7 through the mesh of the rear plate. At this time, the inner drum 7 rotates continuously at a set speed (driven by the variable frequency main motor 20), causing the clothes to tumble and ensuring that the clothes are in full contact with the mixed air and are heated evenly.

[0066] As moisture evaporates from the clothes, the humid, hot air is pushed to the front of the inner drum 7 under the pressure of the fan 10 and discharged downwards through the front exhaust port. The discharged airflow first passes through the lint treatment assembly (lint collector 15 and lint collection box 16), where lint and impurities are intercepted by the multi-layer filter structure and collected in the lint collection box 16. For the condenser dryer in this embodiment, the filtered humid air enters the heat recovery system. It first passes through the waste heat recovery device 12, which recovers the heat to the fan 10 intake or heating unit, achieving preliminary heat recovery and utilization; then the air enters the condensation dehumidification system (composed of a condenser, evaporator 18, and compressor). Driven by the compressor, the condenser and evaporator 18 work together to condense and dehumidify the air, removing moisture. At the same time, the high-pressure heat generated by the compressor is transported to the fan 10 intake via the heat pump coil and then blown into the air box 6 for circulation, further improving energy utilization.

[0067] In this embodiment, the loading door 1 adopts a double-sealed structure, which not only facilitates the user to put in and take out clothes, but also effectively prevents heat loss during the drying process. The cleaning door panel 2 is located outside the lint collection box 16. When there are many impurities in the lint collection box 16, the user can open the cleaning door panel 2 and easily disassemble the lint collection box 16 for cleaning.

[0068] The temperature sensor in the intelligent temperature control system monitors the temperature of the inner drum 7 in real time and feeds the data back to the controller. When the temperature of the inner drum 7 deviates from the set value, the controller immediately adjusts the power of the heater 11 to ensure that the drying temperature is always kept within the ideal range, thus ensuring the drying effect while avoiding energy waste and damage to clothes.

[0069] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An energy-saving clothes dryer, characterized in that, include: The cylindrical assembly includes an inner cylinder with a front opening and an inner cylinder rear plate opening, and an outer cylinder coaxially arranged with the inner cylinder. The rear end of the outer cylinder and the rear end of the inner cylinder form a sealed air box through a sealing ring. The front and rear plate openings of the inner cylinder have a densely distributed mesh structure. The rear air intake system includes a fan located on the air intake side of the air box and a heater located on the air outlet side of the fan; A heat recovery system includes a waste heat recovery device and a heat pump device; the waste heat recovery device and the heat pump device are connected by pipes to form a closed loop to realize the recycling of heat; The lint handling assembly includes a lint collector integrally formed with the outer cylinder and a removable lint collection box. The airflow generated by the fan is heated and then enters the air box. It enters the inner cylinder through the opening in the rear plate of the inner cylinder. The humid airflow is discharged through the front opening and then passes through the fiber treatment component and the heat recovery system in sequence to achieve recycling.

2. The energy-saving clothes dryer according to claim 1, characterized in that, The heat recovery system also includes a condensation dehumidification device, and the waste heat recovery device, the heat pump device, and the condensation dehumidification device are connected by pipes to form a closed loop.

3. The energy-saving clothes dryer according to claim 2, characterized in that, The dryer is a condenser dryer. The exhaust air passes through the lint collection box and then enters the condensation dehumidification system. The high-pressure heat from the compressor is transferred to the fan intake via the heat pump coil and then blown into the air box for circulation.

4. The energy-saving clothes dryer according to any one of claims 1 to 3, characterized in that, The airflow generated by the fan is heated by the heater and then enters the air box. The hot and cold air mix in the air box and the mixed air enters the inner cylinder through the mesh of the rear plate of the inner cylinder.

5. The energy-saving clothes dryer according to claim 2, characterized in that, The rotation of the inner drum ensures that the clothes are heated evenly, and the humid and hot air is pushed to the front of the inner drum under pressure and discharged downward through the exhaust port at the front.

6. The energy-saving clothes dryer according to claim 5, characterized in that, It also includes a loading door and a cleaning door panel, the loading door being used to put in and take out clothing, and the cleaning door panel being used to clean the lint collection box.

7. The energy-saving clothes dryer according to claim 6, characterized in that, The fibrous collection box is equipped with a multi-layer filtration structure, which is made of non-woven fabric or metal mesh.

8. The energy-saving clothes dryer according to any one of claims 1 to 3, or 6 or 7, characterized in that, It also includes an electrical box for housing the electrical control components of the dryer; and a radiator for dissipating the heat generated by the operation of the refrigeration system.

9. The energy-saving clothes dryer according to claim 8, characterized in that, It also includes a refrigeration system, comprising a condenser, an evaporator, and a compressor, wherein the condenser and the evaporator are connected by pipes, the compressor is used to drive the refrigeration cycle, and the refrigeration system is connected to a condensation dehumidification device.

10. The energy-saving clothes dryer according to claim 9, characterized in that, A front plate is provided at the opening of the inner cylinder, and the front plate is provided with densely packed holes.

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