Rapid clothes drying system based on false boiling effect and method thereof

Abstract

The invention discloses a rapid clothes drying system based on a false boiling effect and a method thereof, and belongs to the technical field of clothes drying devices. In the system provided by the invention, a top nozzle, a side nozzle and a low nozzle which are used for intermittently introducing hot air are respectively arranged on a vacuum clothes drying box. A heat conduction and heat dissipation pipe and a heat conduction storage table for storing clothes to be dried are arranged in an inner cavity of the vacuum clothes drying box. A water outlet in the bottom of the vacuum clothes drying box is connected with the water collecting box through a water drainage pipe provided with a condenser, and the interior of the vacuum clothes drying box is vacuumized through a vacuum generator. An outlet of the air compressor is divided into a first branch connected with the energy distributor and a second branch connected with the vacuum generator through the air source distributor. A heating medium outlet of the energy distributor is connected with the air heater through a heating medium connecting pipe, and a refrigerant outlet of the energy distributor is connected with the refrigerant generator through a refrigerant connecting pipe; the tail gas generator and the refrigerant generator are connected with the energy recoverer through pipelines, and the energy recoverer provides electric energy for heating of the air heater.

Description

Technical Field

[0001] The present invention belongs to the technical field of clothes drying devices, and specifically designs a quick clothes drying system and method based on a false boiling effect. Background Art

[0002] The working principle of a vacuum clothes dryer is as follows: First, a vacuum environment is created, and a negative pressure environment below atmospheric pressure is formed by internal vacuuming, which lowers the boiling point of water and causes the water to evaporate at a lower temperature; then the clothes are heated to accelerate the evaporation of water; finally, the evaporated water vapor is quickly extracted by the vacuum pump, condensed by the condenser, and collected or directly discharged. Its characteristics are significant: fast drying speed, low-temperature drying to reduce damage to clothes, low energy consumption and environmental protection, prevention of mold and bacteria growth, and compact size suitable for small households. The vacuum clothes dryer is mainly composed of a vacuum system, a heating system, a drying chamber, a moisture collection system, and a control system. There are also some problems in its actual application:

[0003] In terms of noise, vacuum pumps are generally noisy during operation, significantly impacting these dryers in locations with noise restrictions or during specific time periods, often requiring them to be operated in dedicated locations. The heating system is also inefficient. Existing technologies primarily utilize electric heating. For electrical safety reasons, electric heating wires are typically placed around the perimeter of the vacuum dryer. When the drying chamber is evacuated, the air becomes thinner and airflow is weak, limiting all three modes of heat exchange: conduction, radiation, and convection. This results in low drying efficiency. Furthermore, based on natural drying practices, ventilation is often more efficient than sun-drying clothes. However, in a vacuum dryer, ventilation is virtually impossible due to the vacuum environment. Even if some moisture on the surface of the clothes forms vapor due to heat or vacuum boiling, the lack of air circulation will form saturated vapor clouds on the surface, hindering further evaporation and significantly reducing heating and drying efficiency.

[0004] While current vacuum dryers offer certain advantages over conventional dryers—for example, conventional dryers often take 2-3 hours to dry clothes, while vacuum dryers can do the job in 1-2 hours—there's still room for improvement. Improving heating and drying efficiency and adding ventilation methods could further shorten drying time. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of high noise and low drying efficiency of existing vacuum clothes dryers, and to provide a rapid clothes drying system and method based on the false boiling effect.

[0006] The specific technical solutions adopted in the present invention are as follows:

[0007] In a first aspect, the present invention provides a rapid clothes drying system based on a false boiling effect, comprising a vacuum clothes drying box, an external heat pipe, an air heater, an energy distributor, an energy recovery device, an air compressor, a water collection tank, a wastewater collection tank, and a vacuum generator;

[0008] The vacuum clothes drying box is provided with an openable top cover on which a top nozzle is provided; side nozzles are provided on the side walls of the vacuum clothes drying box, and the bottom of the vacuum clothes drying box is a pressure-bearing chassis; a low-position nozzle is provided on the pressure-bearing chassis; a heat-conducting and heat-dissipating pipe and a plurality of heat-conducting and heat-dissipating platforms for placing clothes to be dried are provided in the internal cavity of the vacuum clothes drying box; a plurality of evaporation holes are provided on the heat-conducting and heat-dissipating platforms; an external heat pipe connected to the heat-conducting and heat-dissipating pipe is provided on the periphery of the vacuum clothes drying box, and a circulating air pump is provided at the connection between the external heat pipe and the heat-conducting and heat-dissipating pipe; the external heat pipe is further provided with three branches, namely a top air supply pipe connected to the top nozzle, a side air supply pipe connected to the side nozzle, and a low air supply pipe connected to the low-position nozzle; the output end of the air heater is connected to the external heat pipe;

[0009] The drain port on the pressure chassis is connected to the water collecting tank via a drain pipe provided with a condenser; a first air extraction hole is provided on the top of the water collecting tank, which is connected to the wastewater collecting tank via a vacuum tube; a second air extraction hole is provided on the top of the wastewater collecting tank, which is connected to the vacuum generator via a pipe; the exhaust port of the vacuum generator is connected to the exhaust generator via an exhaust connecting pipe;

[0010] The air compressor outlet is divided into a first branch and a second branch through an air source distributor, wherein the first branch and the second branch are respectively connected to the energy distributor and the vacuum generator; the heat medium outlet of the energy distributor is connected to the air heater through a heat medium connecting pipe, and the refrigerant outlet is connected to the refrigerant generator through a refrigerant connecting pipe; the exhaust gas generator and the refrigerant generator are respectively connected to the energy recovery device through pipelines, and the energy recovery device is connected to the air heater.

[0011] Preferably, the top air supply pipe, side air supply pipe and low-level air supply pipe are respectively provided with a top air supply valve, a side air supply valve and a low-level air supply valve for controlling whether to intake air, and are also respectively provided with a top damping valve, a side damping valve and a low-level damping valve for adjusting the intake amount.

[0012] Furthermore, a heat pump flow regulating valve is provided on the first branch, and a vacuum volume regulating valve for adjusting the vacuum degree of the vacuum generator is provided on the second branch; a vacuum switch valve is provided on the vacuum tube; and a check valve is provided on the external heat pipe to prevent backflow of hot air.

[0013] Preferably, a sealing ring is provided between the vacuum clothes drying box and the top cover to improve the sealing performance of the internal cavity of the vacuum clothes drying box.

[0014] Preferably, the top cover is provided with a guide grille, and the guide grille is arranged below the top nozzle; the top cover is also provided with a vacuum pressure gauge for detecting the vacuum degree of the inner cavity of the vacuum drying box; and a drainage and anti-blocking net is provided below the heat conduction storage table.

[0015] Preferably, drain holes are provided at the bottom of the water collecting tank and the wastewater collecting tank; the drain holes at the bottom of the water collecting tank and the wastewater collecting tank are connected to the outside through a pipe provided with a drain valve and a pipe provided with a wastewater drain valve respectively.

[0016] Preferably, a heat medium sensor is installed within the heat medium connecting pipe for measuring the air temperature within the heat medium connecting pipe, and an exhaust gas sensor is installed within the exhaust gas connecting pipe for measuring the water vapor content and temperature of the exhaust gas. Several temperature sensors are installed on the sidewalls of the vacuum drying chamber, distributed at different locations within the vacuum drying chamber for measuring the temperature at different locations. Preferably, the outer heat pipe is provided with an insulating layer to prevent heat loss and is connected to a refrigerant generator, receiving cold air from the refrigerant generator.

[0017] Preferably, the energy recovery device is connected to the central processing unit to provide electrical energy to the central processing unit; the central processing unit controls the air heater, circulating air pump, heat pump flow regulating valve, vacuum air volume regulating valve, as well as top air supply valve, top damping valve, side air supply valve, side damping valve, low-level air supply valve and low-level damping valve.

[0018] In a second aspect, the present invention provides a method for quickly drying clothes using the clothes drying system according to the first aspect, which is as follows:

[0019] S1: Place the clothes to be dried on the heat-conducting storage table and cover it with the top cover; close the top air supply valve, side air supply valve and low-level air supply valve, and open the vacuum switch valve on the vacuum tube;

[0020] S2: The air compressor is started. A portion of the high-pressure gas passes through the air source distributor and the vacuum air flow control valve on the second branch into the vacuum generator, creating a vacuum at the throat of the vacuum generator. The vacuum drying box is then evacuated through the vacuum tube. A negative pressure environment below atmospheric pressure is formed in the vacuum drying box. Based on the false boiling principle, moisture on the clothes evaporates at a lower temperature. Another portion of the high-pressure gas passes through the air source distributor and the heat pump flow control valve on the first branch into the energy distributor, where it is separated into hot air and cold air.

[0021] Hot air passes through the heat medium connecting pipe and the air heater in sequence and enters the external heat pipe; cold air passes through the refrigerant connecting pipe and enters the refrigerant generator, driving the refrigerant generator to convert kinetic energy into electrical energy and store it in the energy recovery device; exhaust gas from the exhaust port of the vacuum generator passes through the exhaust connecting pipe and enters the exhaust generator, driving the exhaust generator to convert kinetic energy into electrical energy and store it in the energy recovery device; the energy recovery device provides auxiliary heat energy for the air heater; the hot air heated by the air heater passes through the external heat pipe and the circulating air pump in sequence and enters the heat conduction and heat dissipation pipe, heating and drying the clothes to be dried on the heat conduction storage table;

[0022] S3: intermittently open the top air supply valve and the top damping valve on the top air supply pipe, the side air supply valve and the side damping valve on the side air supply pipe, and the low air supply valve and the low damping valve on the low air supply pipe to add a small amount of hot air into the vacuum dryer, promote the evaporation of water vapor on the surface of the clothes, and circulate the air in the vacuum dryer to remove the water vapor on the surface of the clothes; the condenser on the drain pipe at the bottom of the vacuum dryer receives the cold air from the refrigerant generator as a cold source, and condenses the water vapor from the inside of the vacuum dryer into the water collecting tank; repeat the above steps until the clothes are dried.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The present invention creatively requires only one air compressor to meet the energy supply requirements of the vacuum system, vacuum drying box, energy recovery system, heating system, ventilation system, moisture collection system, control system and other departments of the vacuum dryer, thereby achieving efficient integration.

[0025] (2) Compared to existing vacuum pump technology, the present invention utilizes an air compressor to output high-speed gas, and with the help of the Bernoulli principle throat effect, converts pressure energy into kinetic energy, reduces pressure and creates a vacuum, thereby achieving a vacuum environment in the vacuum dryer. This not only achieves innovation in vacuuming methods, but also, due to the mature air compressor technology, low noise, and remote air supply, vacuum dryers are expected to enter the high-end market, providing users with a better quality and quieter user experience.

[0026] (3) Different from the existing electric heating method and the inefficient mode of heating around the vacuum drying box, the present invention uses the high-pressure compressed air generated by the air compressor to enter the energy distributor tangentially and separate it into hot air and cold air. The hot air directly passes through the heat pipe and the heat storage table and comes into direct contact with the clothes, effectively solving the problem of low heat exchange efficiency in a vacuum environment and greatly improving the heating and drying efficiency.

[0027] (4) In order to address the drawback of existing vacuum drying equipment that makes it difficult for water vapor on the surface of clothes to circulate, hindering water evaporation, the present invention cleverly utilizes the pressure difference between the inside and outside of the chamber to automatically suck air to form a ventilation airflow, and innovatively designs a vacuum-type high-speed three-dimensional ventilation method through air intake at different positions, different nozzle forms, and multiple air intake combinations. This method can form a variety of flow patterns, such as unidirectional uniform flow and forced vortex flow, ensuring ventilation throughout the vacuum drying chamber, quickly removing water vapor on the surface of clothes, promoting water evaporation inside clothes, and achieving ultra-fast drying effect.

[0028] (5) Adhering to the concept of energy conservation and environmental protection, the present invention utilizes devices such as vacuum generators and energy distributors to recycle excess energy and convert it into electrical energy for use by other devices while meeting functional requirements. Furthermore, after the energy distributor receives hot air, the cold air is not only used for power generation but also as a refrigerant for the condenser, fully tapping the potential for energy utilization and maximizing energy conservation and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of a quick clothes drying system based on the false boiling effect provided in this embodiment;

[0030] Figure: diversion grille 1, top cover 2, sealing ring 3, vacuum drying box 4, external heat pipe 5, insulation layer 6, low-level nozzle 7, low-level damping valve 8, top nozzle 9, top air supply valve 10, top damping valve 11, vacuum pressure gauge 12, side damping valve 13, check valve 14, air heater 15, central processing unit 16, heat medium sensor 17, heat medium connecting pipe 18, energy distributor 19, refrigerant connecting pipe 20, refrigerant generator 21, heat conduction heat dissipation pipe 22, heat conduction storage platform 23, evaporation hole 24, side nozzle 25. Side air supply valve 26. Circulating air pump 27. Temperature sensor 28. Energy recovery device 29. Exhaust gas connecting pipe 30. Vacuum air volume regulating valve 31. Heat pump flow regulating valve 32. Air source distributor 33. Air compressor 34. Low-level air supply valve 35. Drainage and anti-blocking net 36. Pressure chassis 37. Condenser 38. Water collecting tank 39. Drain valve 40. Vacuum switch valve 41. Vacuum tube 42. Exhaust gas generator 43. Exhaust gas sensor 44. Wastewater drain valve 45. Wastewater collection tank 46. Vacuum generator 47. DETAILED DESCRIPTION

[0031] The present invention will be further described and illustrated below with reference to the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention may be combined accordingly, provided that there is no conflict between them.

[0032] like Figure 1As shown, as a preferred embodiment of the present invention, this embodiment provides a rapid clothes drying system based on the false boiling effect. The system comprises a vacuum system, a vacuum clothes drying chamber 4, an energy recovery system, a heating system, a ventilation system, a moisture collection system, and a control system. The overall system includes the vacuum clothes drying chamber 4, an external heat pipe 5, an air heater 15, an energy distributor 19, an energy recovery device 29, an air compressor 34, a water collection tank 39, a wastewater collection tank 46, and a vacuum generator 47.

[0033] In the system provided by the present invention, a vacuum drying box 4 is provided with an openable top cover 2. When the top cover 2 is closed, the interior of the vacuum drying box 4 forms a cavity for drying clothes. A sealing ring 3 is provided between the vacuum drying box 4 and the top cover 2 to improve the sealing of the cavity within the vacuum drying box 4. The bottom of the vacuum drying box 4 is a pressure-bearing chassis 37, which forms an integral unit with the vacuum drying box 4.

[0034] Because the vacuum drying box 4 is susceptible to deformation due to internal and external pressure differentials during operation, its structure requires a pressure-resistant and deformation-resistant design. The body of the vacuum drying box 4 is preferably cylindrical, while the top cover 2 and pressure-bearing base 37 are preferably spherical or elliptical. The top cover 2 is also equipped with a vacuum pressure gauge 12 for monitoring the vacuum level within the vacuum drying box 4.

[0035] In the system provided by the present invention, the interior cavity of the vacuum drying chamber 4 is equipped with heat-conducting and heat-dissipating pipes 22 and several layers of heat-conducting and heat-dissipating platforms 23 for placing clothes to be dried. In this embodiment, the heat-conducting and heat-dissipating platforms 23 are arranged in three layers, and each layer is provided with a plurality of evaporation holes 24, ensuring maximum ventilation, allowing the clothes to be heated and moisture evaporated. The heat-conducting and heat-dissipating pipes 22 are located on the contact surface of each layer of heat-conducting and heat-dissipating platforms 23. An external heat pipe 5 is installed around the periphery of the vacuum drying chamber 4, and the heat-conducting and heat-dissipating pipes 22 are connected to the external heat pipe 5. A circulating air pump 27 is installed at the connection between the external heat pipe 5 and the heat-conducting and heat-dissipating pipes 22. To minimize heat loss during operation, an insulation layer 6 is provided around the external heat pipe 5. Those skilled in the art will be able to select the material and specific parameters of the insulation layer based on actual conditions. The external heat pipe 5 is provided with three branches: a top air supply pipe, a side air supply pipe, and a low air supply pipe. The output end of the air heater 15 is connected to the external heat pipe 5. A check valve 14 is further provided on the outer heat pipe 5 to prevent the hot air inside the vacuum drying box 4 from flowing back to the outer heat pipe 5 and affecting the drying efficiency of the heat-conducting storage platform 23 .

[0036] In the system provided by the present invention, a drain outlet is provided at the lowest point of the pressure chassis 37 , and the drain outlet is connected to the water collecting tank 39 through a drain pipe provided with a condenser 38 .

[0037] To prevent debris from flowing out of the drain outlet during operation and causing blockage, this embodiment installs a drain anti-clogging net 36 below the heat transfer platform 23 and above the drain outlet. A first air extraction hole is defined at the top of the water collection tank 39, which is connected to a wastewater collection tank 46 via a vacuum tube 42. A vacuum switch valve 41 is provided on the vacuum tube 42. A second air extraction hole is defined at the top of the wastewater collection tank 46, which is connected to a vacuum generator 47 via a pipe. The exhaust port of the vacuum generator 47 is connected to an exhaust generator 43 via an exhaust connection tube 30.

[0038] In the system provided by the present invention, drain holes are provided at the bottoms of both the water collection tank 39 and the wastewater collection tank 46. The drain hole at the bottom of the water collection tank 39 communicates with the outside world via a pipe equipped with a drain valve 40. Moisture from the clothes inside the vacuum drying chamber 4 is collected in the water collection tank 39, and the accumulated water in the water collection tank 39 can be drained by opening the drain valve 40. The drain hole at the bottom of the wastewater collection tank 46 communicates with the outside world via a pipe equipped with a wastewater drain valve 45. Wastewater from the vacuum generator 47 is collected in the wastewater collection tank 46, and the wastewater in the wastewater collection tank 46 can be drained by opening the wastewater drain valve 45.

[0039] like Figure 1 As shown, in the system provided by the present invention, a top nozzle 9 is provided on the top cover 2. In order to ensure that the dry hot air can flow downward evenly, a guide grille 1 is provided on the top cover 2 below the top nozzle 9. Side nozzles 25 are provided on the side walls of the vacuum drying box 4, and a low-level nozzle 7 is provided on the pressure-bearing bottom plate 37. The top air supply pipe is connected to the top nozzle 9, the side air supply pipe is connected to the side nozzle 25, and the low-level air supply pipe is connected to the low-level nozzle 7. A top air supply valve 10 and a top damping valve 11 are provided on the top air supply pipe, a side air supply valve 26 and a side damping valve 13 are provided on the side air supply pipe, and a low-level air supply valve 35 and a low-level damping valve 8 are provided on the low-level air supply pipe. These air supply valves are used to control whether air is to be taken in, and the damping valve can adjust the air intake of each branch pipeline respectively.

[0040] The top nozzle 9 and side nozzles 25 are preferably nozzles that can achieve an umbrella-shaped outward diffusion jet. The low-level nozzle 7 is selected to have both umbrella-shaped diffusion and linear jet jet modes. After the dry hot air is controlled by the top damping valve 11, a small amount of gas, influenced by the internal and external pressure differential, is ejected vertically and at high speed through the top nozzle 9 into the vacuum drying chamber 4. It then passes through the guide grille 1 to generate a uniform downward flow field. After the dry hot air is controlled by the side damping valve 13, a small amount of gas, influenced by the internal and external pressure differential, is ejected tangentially into the vacuum drying chamber 4 through the side nozzles 25 along the cylindrical wall of the vacuum drying chamber 4, generating a clockwise or counterclockwise forced vortex field. After the dry hot air is controlled by the low-level damping valve 8, a small amount of gas, influenced by the internal and external pressure differential, is ejected normal to the pressure-bearing bottom plate 37 of the vacuum drying chamber 4 through the low-level nozzle 7 into the vacuum drying chamber 4, generating a clockwise or counterclockwise convection or free vortex field. During operation, the top nozzle 9, the side nozzle 25, and the low-position nozzle 7 are intermittently opened, so that the three airflows are combined in different ways to generate various flow patterns such as unidirectional uniform flow, forced vortex flow, free vortex flow, convection flow, Archimedean spiral flow, Rankine vortex flow, lattice flow, and intermittent flow, so that ventilation can be achieved everywhere in the vacuum drying box 4.

[0041] In the system provided by the present invention, an air compressor 34 serves as the power source for all other devices. The outlet of air compressor 34 is divided into a first branch and a second branch via an air source distributor 33. The first branch is connected to the energy distributor 19, and the second branch is connected to the vacuum generator 47. A heat pump flow control valve 32 is provided on the first branch to adjust the flow rate, while a vacuum air flow control valve 31 is provided on the second branch to adjust the vacuum level of the vacuum generator 47.

[0042] In the system provided by the present invention, the energy distributor 19 is used to divide part of the air from the air compressor 34 into cold air and hot air. The heat medium outlet of the energy distributor 19 is connected to the air heater 15 through the heat medium connecting pipe 18, providing the main heat energy for the air heater 15. The refrigerant outlet of the energy distributor 19 is connected to the refrigerant generator 21 through the refrigerant connecting pipe 20. The exhaust gas generator 43 and the refrigerant generator 21 are respectively connected to the energy recovery device 29 through pipelines, converting kinetic energy into electrical energy and storing it in the energy recovery device 29. The energy recovery device 29 provides auxiliary heat energy for the air heater 15. In this embodiment, the condenser 38 is connected to the refrigerant generator 21. The condenser 38 receives the cold air from the refrigerant generator 21 as a cold source, and condenses the water vapor from the vacuum drying box 4 into water and flows it into the water collecting tank 39.

[0043] In the system provided by the present invention, a heat medium sensor 17 is provided within the heat medium connecting pipe 18 for measuring the air temperature within the heat medium connecting pipe 18 , and an exhaust gas sensor 44 is provided within the exhaust gas connecting pipe 30 for measuring the water vapor content and temperature of the exhaust gas. Several temperature sensors 28 are provided on the sidewalls of the vacuum drying box 4 . These temperature sensors 28 are distributed at different locations within the vacuum drying box 4 and are used to measure the temperature at these locations, ensuring that the temperature at each location within the vacuum drying box 4 reaches the set temperature, thereby improving drying efficiency.

[0044] Next, the present invention also provides a quick clothes drying method using the above clothes drying system. The quick clothes drying method is specifically implemented as follows:

[0045] 1. Place clothes to be dried

[0046] Place the clothes to be dried on the heat-conducting storage table 23 and cover it with the top cover 2. Close the top air supply valve 10, the side air supply valve 26 and the low-level air supply valve 35, and open the vacuum switch valve 41 on the vacuum tube 42.

[0047] 2. Vacuum system operation

[0048] When the air compressor 34 is activated, a portion of the high-pressure gas flows through the gas source distributor 33 and the vacuum volume control valve 31 on the second branch line into the vacuum generator 47, creating a vacuum at the throat of the vacuum generator 47. Since the top air supply valve 10, side air supply valve 26, and low-level air supply valve 35 are all closed, the vacuum drying box 4 is evacuated via the vacuum tube 42, creating a negative pressure environment below atmospheric pressure within the vacuum drying box 4. The pressure differential between the inside and outside of the vacuum drying box 4 automatically presses the vacuum drying box 4 and the upper cover 2 together through the sealing ring 3, achieving a seal.

[0049] According to the false boiling principle, negative pressure lowers the boiling point of water, allowing moisture on clothing to evaporate at a lower temperature. By adjusting the opening of the vacuum volume control valve 31 and controlling the vacuum level of the vacuum generator 47, the vacuum level within the vacuum drying chamber 4 is controlled. Actual tests have shown that when the vacuum level reaches above 5.5 meters, room-temperature liquid water begins to form a nascent cavitation state, and when the vacuum level reaches above 8 meters, the false boiling effect becomes apparent. Using the method of the present invention, the vacuum system can generate a vacuum level of no less than 9.5 meters, enabling rapid evaporation of moisture from the surface of clothing through false boiling.

[0050] 3. Energy recovery system operation

[0051] The present invention has two parts of recoverable energy. One part is the high-pressure gas from the air compressor 34, which passes through the gas source distributor 33 and the heat pump flow control valve 32 on the first branch and enters the energy distributor 19, where it is separated into hot air and cold air. The cold air enters the refrigerant generator 21 through the refrigerant connecting pipe 20, driving the refrigerant generator 21 to convert kinetic energy into electrical energy stored in the energy recovery device 29. The other part is the exhaust gas from the exhaust port of the vacuum generator 47, which passes through the exhaust connecting pipe 30 and enters the exhaust generator 43, driving the exhaust generator 43 to convert kinetic energy into electrical energy stored in the energy recovery device 29.

[0052] 4. Heating system operation

[0053] The heat sources of the heating system of the present invention are divided into a primary heat source and an auxiliary heat source. The primary heat source is the hot air separated by the energy distributor 19, which then passes through the heat medium connecting pipe 18 and the air heater 15 and enters the external heat pipe 5. The auxiliary heat source is generated by the electric energy stored in the energy recovery device 29, which drives the air heater 15 to heat the air. The heated hot air then enters the external heat pipe 5. The auxiliary heat source is generated only when the air in the heat medium connecting pipe 18 has not reached a predetermined temperature.

[0054] The hot air then flows through the external heat pipe 5 and the circulating air pump 27 into the heat-conducting and heat-dissipating pipe 22, heating and drying the clothes placed on the heat-conducting storage platform 23. A check valve 14 provided on the external heat pipe 5 prevents the hot air inside the vacuum drying chamber 4 from flowing back into the external heat pipe 5 and affecting the drying efficiency of the heat-conducting storage platform 23.

[0055] 5. Ventilation system

[0056] The ventilation system works by evacuating the vacuum drying chamber 4, creating a pressure differential with the outside air. Once connected, outside air is drawn into the vacuum drying chamber 4, forming an airflow. The greater the pressure differential, the faster the airflow. Therefore, the greater the vacuum level within the vacuum drying chamber 4, the better the ventilation. Field measurements have shown that even at a vacuum level of only 1 meter, airflow speeds exceeding 100 m / s can be achieved upon valve opening, instantly removing evaporated moisture from the clothing surface and promoting evaporation of liquid water.

[0057] During operation of the system, the top air supply valve 10 and the top damping valve 11 on the top air supply pipe, the side air supply valve 26 and the side damping valve 13 on the side air supply pipe, and the low-level air supply valve 35 and the low-level damping valve 8 on the low-level air supply pipe are intermittently opened to supply a small amount of hot air into the vacuum drying box 4.

[0058] Under the action of vacuum, part of the moisture on the surface of the clothes boils and evaporates at room temperature to form gaseous water vapor. The temperature in the vacuum drying box 4 decreases due to the heat absorption caused by the evaporation of moisture. The ventilation system is designed according to the program to intermittently open each air supply valve to add a small amount of hot air into the tank. On the one hand, the heating of the clothes can promote evaporation. On the other hand, the air in the tank is circulated to remove the saturated water vapor on the surface of the clothes and discharge it to the outside through the vacuum generator, thereby reducing the water vapor saturation in the tank. This reciprocating cycle can dry clothes quickly and efficiently.

[0059] 6. Moisture Collection System

[0060] The condenser 38 on the drain pipe at the bottom of the vacuum clothes drying box 4 receives the cold air from the refrigerant generator 21 as a cold source, and condenses the water vapor from the inside of the vacuum clothes drying box 4 into the water collecting tank 39 .

[0061] 7. Control system operation

[0062] After starting the air compressor 34, the exhaust kinetic energy generated by the vacuum system and heating system is converted into electrical energy and stored in the energy recovery device 29. This energy is used to drive the central processing unit 16. The central processing unit 16 controls the air heater 15, the circulating air pump 27, the heat pump flow control valve 32, the vacuum volume control valve 31, the top air supply valve 10, the top damping valve 11, the side air supply valve 26, the side damping valve 13, the low-level air supply valve 35, and the low-level damping valve 8. Ultimately, relying on a single air compressor, a series of operations and personalized controls, such as vacuum false boiling, heating and evaporation, and ventilation and dehumidification, are achieved, achieving the optimal drying effect for different clothing and their specific needs.

[0063] The embodiment described above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Persons skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any technical solution obtained by equivalent substitution or equivalent transformation falls within the scope of protection of the present invention.

Claims

1. A quick clothes drying system based on false boiling effect, characterized in that: The invention comprises a vacuum clothes drying box (4), an external heat pipe (5), an air heater (15), an energy distributor (19), an energy recovery device (29), an air compressor (34), a water collection tank (39), a wastewater collection tank (46) and a vacuum generator (47); The vacuum clothes drying box (4) is provided with an openable top cover (2) on the top cover (2), and a top nozzle (9) is provided on the top cover (2); a side nozzle (25) is provided on the side wall of the vacuum clothes drying box (4), and the bottom of the vacuum clothes drying box (4) is a pressure-bearing chassis (37); a low-position nozzle (7) is provided on the pressure-bearing chassis (37); a heat-conducting heat dissipation pipe (22) and a plurality of layers of heat-conducting storage platforms (23) for placing clothes to be dried are provided in the internal cavity of the vacuum clothes drying box (4); a heat-conducting storage platform (23) is provided on the heat-conducting storage platform (23) A plurality of evaporation holes (24); an external heat pipe (5) in communication with the heat conduction and heat dissipation pipe (22) is provided on the periphery of the vacuum drying box (4); a circulating air pump (27) is provided at the connection between the external heat pipe (5) and the heat conduction and heat dissipation pipe (22); the external heat pipe (5) is also provided with three branches, namely, a top air supply pipe in communication with the top nozzle (9), a side air supply pipe in communication with the side nozzle (25), and a low air supply pipe in communication with the low nozzle (7); the output end of the air heater (15) is in communication with the external heat pipe (5); The drain port provided on the pressure chassis (37) is connected to the water collecting box (39) via a drain pipe provided with a condenser (38); a first air extraction hole is provided on the top of the water collecting box (39), and the first air extraction hole is connected to the wastewater collecting box (46) via a vacuum tube (42); a second air extraction hole is provided on the top of the wastewater collecting box (46), and the second air extraction hole is connected to the vacuum generator (47) via a pipeline; the exhaust port of the vacuum generator (47) is connected to the exhaust generator (43) via an exhaust connecting pipe (30); The outlet of the air compressor (34) is divided into a first branch and a second branch through an air source distributor (33), wherein the first branch and the second branch are respectively connected to an energy distributor (19) and a vacuum generator (47); the heat medium outlet of the energy distributor (19) is connected to an air heater (15) through a heat medium connecting pipe (18), and the refrigerant outlet is connected to a refrigerant generator (21) through a refrigerant connecting pipe (20); the exhaust gas generator (43) and the refrigerant generator (21) are respectively connected to an energy recovery device (29) through pipelines, and the energy recovery device (29) is connected to the air heater (15).

2. The quick drying system based on the false boiling effect according to claim 1, characterized in that: The top air supply pipe, the side air supply pipe and the low-position air supply pipe are respectively provided with a top air supply valve (10), a side air supply valve (26) and a low-position air supply valve (35) for controlling whether air is to be supplied, and are also respectively provided with a top damping valve (11), a side damping valve (13) and a low-position damping valve (8) for adjusting the amount of air supplied.

3. The quick drying system based on the false boiling effect according to claim 2, characterized in that: The first branch is provided with a heat pump flow regulating valve (32), and the second branch is provided with a vacuum flow regulating valve (31) for adjusting the vacuum degree of the vacuum generator (47); the vacuum pipe (42) is provided with a vacuum switch valve (41); and the external heat pipe (5) is provided with a check valve (14) for preventing hot air from flowing back.

4. The rapid clothes drying system based on the false boiling effect according to claim 1, characterized in that: A sealing ring (3) is provided between the vacuum clothes drying box (4) and the top cover (2) for improving the sealing performance of the internal cavity of the vacuum clothes drying box (4).

5. The quick drying system based on false boiling effect according to claim 1, characterized in that: The top cover (2) is provided with a guide grille (1), and the guide grille (1) is arranged below the top nozzle (9); the top cover (2) is also provided with a vacuum pressure gauge (12) for detecting the vacuum degree of the inner cavity of the vacuum drying box (4); and a drainage anti-blocking net (36) is provided below the heat conduction storage platform (23).

6. The rapid clothes drying system based on the false boiling effect according to claim 1, characterized in that: The bottoms of the water collecting tank (39) and the wastewater collecting tank (46) are both provided with drain holes; the drain holes at the bottoms of the water collecting tank (39) and the wastewater collecting tank (46) are respectively connected to the outside through a pipe provided with a drain valve (40) and a pipe provided with a wastewater drain valve (45).

7. The rapid clothes drying system based on the false boiling effect according to claim 1, characterized in that: A heat medium sensor (17) for measuring the temperature of the air in the heat medium connecting pipe (18) is provided in the heat medium connecting pipe (18); an exhaust gas sensor (44) for measuring the water vapor content and temperature in the exhaust gas is provided in the exhaust gas connecting pipe (30); and a plurality of temperature sensors (28) are provided on the side wall of the vacuum drying box (4). The temperature sensors (28) are distributed at different positions of the vacuum drying box (4) and are used to measure the temperature at different positions.

8. The quick drying system based on false boiling effect according to claim 1, characterized in that: The outer periphery of the external heat pipe (5) is provided with an insulation layer (6) to prevent heat energy loss; the condenser (38) is connected to the refrigerant generator (21) to receive cold air from the refrigerant generator (21).

9. The quick clothes drying system based on the false boiling effect according to claim 1, characterized in that: The energy recovery device (29) is in communication with the central processing unit (16) to provide electric energy to the central processing unit (16); the central processing unit (16) controls the air heater (15), the circulating air pump (27), the heat pump flow regulating valve (32), the vacuum air volume regulating valve (31), the top air supply valve (10), the top damping valve (11), the side air supply valve (26), the side damping valve (13), the low-level air supply valve (35) and the low-level damping valve (8).

10. A quick clothes drying method using the clothes drying system according to any one of claims 3 to 9, characterized in that: The details are as follows: S1: Place the clothes to be dried on the heat-conducting storage table (23) and cover it with the top cover (2); close the top air supply valve (10), the side air supply valve (26) and the low-position air supply valve (35), and open the vacuum switch valve (41) on the vacuum tube (42); S2: Start the air compressor (34), a portion of the high-pressure gas passes through the gas source distributor (33) and the vacuum air volume regulating valve (31) on the second branch and enters the vacuum generator (47), and generates a vacuum at the throat of the vacuum generator (47), and evacuates the inside of the vacuum drying box (4) through the vacuum tube (42); a negative pressure environment lower than the atmospheric pressure is formed in the vacuum drying box (4), and according to the false boiling principle, the moisture on the clothes evaporates at a lower temperature; another portion of the high-pressure gas passes through the gas source distributor (33) and the heat pump flow regulating valve (32) on the first branch and enters the energy distributor (19), and is separated into hot air and cold air; Hot air passes through the heat medium connecting pipe (18) and the air heater (15) in sequence and enters the external heat pipe (5); cold air passes through the refrigerant connecting pipe (20) and enters the refrigerant generator (21), driving the refrigerant generator (21) to convert kinetic energy into electrical energy and store it in the energy recovery device (29); exhaust gas from the exhaust port of the vacuum generator (47) passes through the exhaust connecting pipe (30) and enters the exhaust generator (43), driving the exhaust generator (43) to convert kinetic energy into electrical energy and store it in the energy recovery device (29); the energy recovery device (29) provides auxiliary heat energy for the air heater (15); the hot air heated by the air heater (15) passes through the external heat pipe (5) and the circulating air pump (27) in sequence and enters the heat conduction and heat dissipation pipe (22), heating and drying the clothes to be dried placed on the heat conduction storage table (23); S3: intermittently open the top air supply valve (10) and the top damping valve (11) on the top air supply pipe, the side air supply valve (26) and the side damping valve (13) on the side air supply pipe, and the low-level air supply valve (35) and the low-level damping valve (8) on the low-level air supply pipe to add a small amount of hot air to the vacuum clothes drying box (4), promote the evaporation of water vapor on the surface of the clothes, and at the same time circulate the air in the vacuum clothes drying box (4) to remove the water vapor on the surface of the clothes; the condenser (38) on the drain pipe at the bottom of the vacuum clothes drying box (4) receives the cold air from the refrigerant generator (21) as a cold source, and condenses the water vapor from the inside of the vacuum clothes drying box (4) into the water collecting tank (39); the above steps are repeated until the clothes are completely dried.

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