Vacuumizing type clothes dryer and clothes drying method thereof

Abstract

The invention discloses a vacuumizing type clothes dryer and a clothes drying method thereof. The vacuumizing type clothes dryer comprises a clothes dryer body, and a closed clothes containing bin is arranged in the clothes dryer body; a vacuumizing mechanism is arranged in the clothes dryer and can extract gas in the clothes containing bin, so that the interior of the clothes containing bin is in a vacuum environment, and water evaporation is accelerated; an air conveying mechanism is further arranged in the clothes dryer and can convey air into the clothes containing bin, so that airflow is regenerated in the clothes containing bin in the vacuum environment. A heating mechanism is arranged in the clothes dryer and can heat gas, and the gas conveying mechanism can convey heated high-temperature gas into the clothes containing bin. The clothes dryer can improve the drying efficiency of clothes.

Description

Technical Field

[0001] The present invention relates to the technical field of clothes drying, and in particular to a vacuum clothes dryer and a clothes drying method thereof. Background Art

[0002] Currently, household clothes dryers are mainly warm air dryers. Their working principle is mainly to heat the internal air through a heating device, and then pass the high-temperature airflow through the surface of the clothes to be dried, heating the clothes and taking away the evaporated moisture, so that the clothes can be dried quickly.

[0003] Specifically, the dryer has an air inlet inside. Fresh, cold air enters the dryer through the fan's suction. Once inside, the cold air is heated by a heater, typically to 70-80°C, and converted into dry, hot air. This hot air then enters the drum or drying chamber, surrounding the clothes in the drum. This hot air gradually evaporates moisture from the clothes and carries it away. By repeating this process, the dryer gradually evaporates moisture from the clothes and dries them.

[0004] Depending on the dryer's heating type, its operating principle varies. For example, a direct-exhaust dryer uses a PTC ceramic heater to raise the air temperature inside the drum, which then rotates to drive the hot air through the clothing, removing moisture. A condensing dryer relies on an internal heating element to heat the air and then blow out the hot air to dry the clothes. Heat pump dryers, on the other hand, use the principles of air energy to generate heat and condense to dry clothes. The refrigerant in the compressor increases the pressure and temperature of the gas, absorbing and releasing energy based on the physical principles of energy conversion, vaporizing and transferring moisture from the clothes before liquefying and collecting it.

[0005] But no matter what kind of heating is used, it ultimately dries clothes through the principle of heat and cold exchange to increase the evaporation of moisture in clothes. The drying efficiency is not high and generally takes 2 to 3 hours. Summary of the Invention

[0006] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a vacuum clothes dryer and a clothes drying method thereof, aiming to improve the drying efficiency of clothes.

[0007] Technical solution: To achieve the above-mentioned purpose, the present invention provides a vacuum dryer, comprising a dryer having a sealed clothing storage compartment; a vacuum mechanism is provided in the dryer, which can extract gas from the clothing storage compartment, placing the clothing storage compartment in a vacuum environment and accelerating water evaporation; the dryer is also provided with a gas transmission mechanism, which can transmit gas to the clothing storage compartment, so that airflow is re-generated in the vacuum environment of the clothing storage compartment.

[0008] Furthermore, the clothes dryer is provided with a heating mechanism, which can heat the gas, and the gas delivery mechanism can deliver the heated high-temperature gas to the clothing placement compartment.

[0009] Furthermore, the dryer is provided with an outer barrel, the interior of the outer barrel is the clothing placement compartment, and the outer barrel has an openable and closable compartment door; the outer barrel is also provided with an inner barrel, and the inner barrel is provided with ventilation holes; the dryer is provided with a rolling mechanism, which can drive the inner barrel to roll in the outer barrel to turn over the clothes placed in the inner barrel.

[0010] Furthermore, the heating mechanism includes a plurality of heating tubes, which extend into the interlayer between the outer barrel and the inner barrel respectively; a sleeve is provided on the heating tube, which isolates the heating tube outside the clothing placement compartment so that the heating tube does not directly contact the moisture in the clothing placement compartment, and forms a gas heating channel between the heating tube and the sleeve.

[0011] Furthermore, the gas supply mechanism includes a gas supply pipe, the two ends of which are respectively connected to the gas heating channel and the clothing placement bin; a gas supply valve is provided on the gas supply pipe, and when the gas supply valve is opened, the gas supply pipe can supply heated high-temperature gas to the clothing placement bin.

[0012] Furthermore, the dryer is provided with an air storage chamber, and the air supply pipe and the gas heating channel are both connected to the air storage chamber. The gas heated in the gas heating channel can be stored in the air storage chamber, and the air storage chamber can supply the heated high-temperature gas to the air supply pipe; the air storage chamber is surrounded by the outside of the outer barrel, and when the air storage chamber is filled with high-temperature gas, a gas insulation layer is formed outside the clothing placement compartment.

[0013] Furthermore, the air storage chamber is connected to an air intake pipe, which is connected to the outside world, and an air intake valve is provided on the air intake pipe; when the air intake valve and the air supply valve are opened, the outside air can enter the clothing storage bin through the air intake pipe, the air storage chamber and the air supply pipe, so that the clothing storage bin is restored to a normal pressure environment so that the bin door can be opened.

[0014] Furthermore, the vacuum pumping mechanism includes a water circulation vacuum pump, which is connected to the clothing storage bin through an exhaust pipe, and an exhaust valve is provided on the exhaust pipe; when the exhaust valve is opened, the water circulation vacuum pump can extract the gas in the clothing storage bin through the exhaust pipe.

[0015] Furthermore, the clothes dryer is provided with a dew point meter, which can detect the dew point in the clothes storage compartment to determine the dryness of the clothes.

[0016] A clothes drying method for a vacuum clothes dryer. During the clothes drying process, a heating mechanism stores heated high-temperature gas in a gas storage chamber arranged outside a clothes storage compartment. The vacuum mechanism and the gas transmission mechanism operate alternately, so that the interior and the periphery of the clothes storage compartment are alternately exposed to a high-temperature gas environment, while the interior of the clothes storage compartment is alternately exposed to a high-temperature gas environment and a vacuum environment.

[0017] Beneficial effects: The vacuum clothes dryer and clothes drying method of the present invention have the following beneficial effects:

[0018] 1) Instead of relying solely on heat exchange to allow moisture from wet clothes to evaporate naturally, the vacuum pump and air delivery mechanism work alternately, exposing the clothing storage compartment to alternating vacuum and high-temperature gas environments. This vacuum environment accelerates moisture evaporation from wet clothes, improving drying efficiency. Introducing high-temperature gas into the clothing storage compartment overcomes the difficulty of uniformly heating clothes in a vacuum environment. Furthermore, subsequent vacuuming generates high-temperature airflow across the clothing surface, carrying away evaporated moisture and further improving drying efficiency.

[0019] 2) The heating tube has two heating paths: one is to directly heat the clothing compartment through the sleeve, and the other is to send the high-temperature gas in the gas heating channel into the clothing compartment for heating; the heating efficiency is higher and the time required to dry clothes is shorter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attachment Figure 1 Schematic diagram of the structure of the clothes dryer of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] As attached Figure 1 The vacuum dryer includes a dryer having a sealed clothing storage compartment 5. When drying clothes, the clothes are placed in the clothing storage compartment 5. The dryer is provided with a vacuum mechanism that can extract the gas in the clothing storage compartment 5, creating a vacuum environment in the clothing storage compartment 5. In this vacuum environment, the evaporation of moisture from wet clothes can be accelerated. The dryer is also provided with a gas supply mechanism that can supply gas to the clothing storage compartment 5, thereby regenerating airflow in the vacuum environment of the clothing storage compartment 5. The clothing storage compartment 5 is provided with an openable and closable compartment door 6. When the interior of the clothing storage compartment 5 is in a vacuum environment, the compartment door 6 is difficult to open. Therefore, it is necessary to restore the gas environment in the clothing storage compartment 5 so as to open the compartment door 6.

[0023] In the prior art, the air supply mechanism only supplies air to the clothing compartment 5 after the clothes have been dried, so that the compartment door 6 can be opened. Furthermore, the air supply mechanism supplies room-temperature air to the clothing compartment 5. In contrast, the present invention includes a heating mechanism within the dryer that heats the air, and the air supply mechanism delivers the heated, high-temperature air to the clothing compartment 5.

[0024] Furthermore, in the present invention, the clothes dryer's drying mode has also been modified. During the drying process, the air delivery mechanism also introduces high-temperature air into the clothing storage chamber 5 several times, thereby regenerating a high-temperature airflow within the evacuated clothing storage chamber 5. Compared to maintaining a vacuum environment within the clothing storage chamber 5, regenerating a high-temperature airflow within the clothing storage chamber 5 has two benefits. First, in a vacuum environment, due to the lack of a heat transfer medium, the heating mechanism directly heating the clothing storage chamber 5 is ineffective and difficult to heat the clothes evenly. Therefore, the introduction of high-temperature air instead allows the temperature within the clothing storage chamber 5 to reach a higher level and achieve uniform heating of the clothes. Second, the introduced high-temperature airflow will flow over the surface of the wet clothes. When the vacuum is drawn again, the extracted high-temperature air will also carry away the evaporated moisture, thereby improving the drying efficiency.

[0025] The clothes dryer is provided with an outer barrel 8, which is a stainless steel sealed barrel body. The interior of the outer barrel 8 is the clothes storage compartment 5. The outer barrel 8 has an openable and closable compartment door 6, and the compartment door 6 has a sealing ring, which makes the compartment door 6 have a good sealing effect. The outer barrel 8 is also provided with an inner barrel 7, which has a vent hole. When clothes are placed in the inner barrel 7, moisture can pass through the vent hole. The clothes dryer is provided with a rolling mechanism, which can drive the inner barrel 7 to roll in the outer barrel 8 to turn over the clothes placed in the inner barrel 7. As shown in the attached figure Figure 1 In one embodiment shown in FIG, the rolling mechanism includes a rotary motor 17, which drives the rotating shaft of the inner tub 7 via a belt 14, allowing the inner tub 7 to roll within the outer tub 8. The rotating shaft of the inner tub 7 and the outer tub are also sealed. A rolling support is also provided between the inner tub 7 and the outer tub 8 to ensure that the inner tub 7 maintains balance during rolling.

[0026] A sandwich is formed between the outer tub 8 and the inner tub 7. The heating mechanism includes several heating tubes 2, which extend into the sandwich between the outer tub 8 and the inner tub 7, respectively, allowing the heating tubes 2 to heat the interior of the clothing storage compartment 5. A sleeve 3 is provided over the heating tubes 2, isolating them from the clothing storage compartment 5 and preventing them from directly contacting and affecting moisture within the compartment. A certain gap is provided between the heating tubes 2 and the sleeve 3, forming a gas heating channel between the heating tubes 2 and the sleeve 3, allowing the heating tubes 2 to heat the gas and provide high-temperature gas to the gas supply mechanism.

[0027] The gas delivery mechanism includes a gas delivery pipe 18, with its ends connected to the gas heating channel and the clothing storage compartment 5, respectively. A gas delivery valve 15 is provided on the gas delivery pipe 18. When the clothing storage compartment 5 is in a vacuum environment and the gas delivery valve 15 is open, the high-temperature gas generated in the gas heating channel can be delivered to the clothing storage compartment 5 through the gas delivery pipe 18.

[0028] As previously mentioned, in a vacuum environment, due to the lack of a heat transfer medium, if heating tube 2 is installed only within clothing compartment 5, then heating tube 2 has only one heating path, resulting in low heating efficiency, slow temperature rise within clothing compartment 5, and difficulty in uniformly heating the clothing. In contrast, in the present invention, heating tube 2 has two heating paths: one is to directly heat clothing compartment 5 through sleeve 2, and the other is to deliver high-temperature gas from the gas heating channel into clothing compartment 5 for heating. This improves heating efficiency and also enhances clothing drying efficiency.

[0029] An air storage chamber 4 is also provided in the clothes dryer, and the air supply pipe 18 and the gas heating channel are both connected to the air storage chamber 4. The high-temperature gas heated in the gas heating channel can be stored in the air storage chamber 4, and then the heated high-temperature gas is supplied from the air storage chamber 4 to the air supply pipe 18. In addition, the air storage chamber 4 is an annular cavity, and the air storage chamber 4 is arranged on the outside of the outer barrel 8. When the air storage chamber 4 is filled with high-temperature gas, a gas insulation layer is formed outside the clothing storage chamber 5, reducing heat loss in the clothing storage chamber 5. Therefore, during the drying process, the heated high-temperature gas has two working stages: one is to be stored in the air storage chamber 4 to form a gas insulation layer; the other is to be passed into the clothing storage chamber 5 so that a high-temperature airflow is regenerated in the clothing storage chamber 5. In other words, during the drying process, the inside and outside of the clothing storage chamber 5 will be alternately in a high-temperature gas environment.

[0030] The air storage chamber 4 is connected to an air inlet pipe 9, which communicates with the outside world and is equipped with an air inlet valve 10. When the air inlet valve 10 is open and the air delivery valve 15 is closed, air from the outside world can be replenished into the air storage chamber 4. When the air inlet valve 10 is closed and the air delivery valve 15 is open, the air storage chamber 4 can deliver the high-temperature air stored therein into the clothing storage compartment 5. When both the air inlet valve 10 and the air delivery valve 15 are open, outside air can enter the clothing storage compartment 5 through the air inlet pipe 9, the air storage chamber 4, and the air delivery pipe 18, restoring the pressure inside the clothing storage compartment 5 to normal, allowing the compartment door 6 to be opened.

[0031] As attached Figure 1As shown in FIG, the vacuum pumping mechanism includes a water-circulating vacuum pump 16, which is connected to the clothing storage bin 5 via an exhaust pipe 13. The exhaust pipe 13 is provided with an exhaust valve 12. When the exhaust valve 12 is opened, the water-circulating vacuum pump 16 can extract gas from the clothing storage bin 5 through the exhaust pipe 13. In the present invention, the water-circulating vacuum pump 16 is selected as the pump body. Since the sealing liquid of the water-circulating vacuum pump 16 is water, the extracted water vapor condenses into water without affecting the pump efficiency.

[0032] The dryer is equipped with a dew point meter 11, which can detect the dew point, or moisture content, within the clothing storage compartment 5 to determine the dryness of the clothes. If the clothes are not dry enough, the vacuum mechanism and the air supply mechanism operate alternately. Once the clothes are dry enough, the pressure inside the clothing storage compartment 5 is restored to normal, allowing the compartment door 6 to be opened.

[0033] An electric control box 1 is also provided in the clothes dryer. The air supply valve 15, the air inlet valve 10 and the air exhaust valve 12 are all solenoid valves and are all controlled by the electric control box 1. In addition, the heating tube 2, the rotating motor 17 and the water circulation vacuum pump 16 are also started and stopped by the electric control box 1. The dew point meter 11 is also electrically connected to the electric control box 1.

[0034] The present invention also provides a clothes drying method of a vacuum clothes dryer. During the clothes drying operation of the dryer, the heating mechanism stores the heated high-temperature gas in an air storage chamber 4 arranged outside the clothes placement chamber 5; and the vacuum mechanism and the air transmission mechanism work alternately, so that the interior and the periphery of the clothes placement chamber 5 are alternately in a high-temperature gas environment, while the interior of the clothes placement chamber 5 is alternately in a high-temperature gas environment and a vacuum environment.

[0035] The specific steps of the dryer's drying operation are as follows:

[0036] Step S1: put the clothes into the inner tub 7 and then close the door 6;

[0037] Step S2: The rotating motor 17 is started to drive the inner tub 7 to roll inside the outer tub 8;

[0038] Step S3: The air inlet valve 10 and the air delivery valve 15 are closed, and the heating mechanism is started. The high-temperature gas generated by the heating is stored in the air storage chamber 4, forming a gas insulation layer. At this time, the periphery of the clothing storage chamber 5 is in a high-temperature gas environment; the air extraction valve 12 is opened, and the water circulation vacuum pump 16 extracts the gas in the clothing storage chamber 5, making the clothing storage chamber 5 in a vacuum environment;

[0039] Step S4: The air extraction valve 12 is closed, and the water circulation vacuum pump 16 stops extracting gas; the air supply valve 15 is opened, and the high-temperature gas in the air storage chamber 4 is sent into the clothing storage compartment 5. At this time, the interior of the clothing storage compartment 5 is in a high-temperature gas environment;

[0040] Step S5: The gas delivery valve 15 is closed, and the gas inlet valve 10 is opened to replenish the external gas into the gas storage chamber 4. After the replenishment is completed, the gas inlet valve 10 is closed again;

[0041] Step S6: The air extraction valve 12 is opened again, and the water circulation vacuum pump 16 extracts the high-temperature air in the clothing storage compartment 5. The high-temperature air flows over the surface of the clothing, taking away moisture;

[0042] Step S7: Repeat steps S4 to S6 until the dew point meter 11 detects that the dew point in the clothing storage compartment 5 reaches the standard, indicating that the clothing is dried;

[0043] Step S8: The rotating motor 17, the heating mechanism, and the water circulation vacuum pump 16 stop working, and then the air extraction valve 12 is closed, the air inlet valve 10 and the air delivery valve 15 are opened, and the outside air enters the clothing storage bin 5 through the air inlet pipe 9, the air storage chamber 4, and the air delivery pipe 18, so that the clothing storage bin 5 returns to a normal pressure environment;

[0044] Step S9: Open the door 6 and take out the clothes.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vacuum clothes dryer, characterized in that: The invention comprises a clothes dryer, wherein a sealed clothes storage bin (5) is provided in the clothes dryer; a vacuum extraction mechanism is provided in the clothes dryer, and the vacuum extraction mechanism can extract gas in the clothes storage bin (5), so that the clothes storage bin (5) is in a vacuum environment, thereby accelerating the evaporation of water; and a gas transmission mechanism is also provided in the clothes dryer, and the gas transmission mechanism can transmit gas to the clothes storage bin (5), so that airflow is regenerated in the clothes storage bin (5) in the vacuum environment.

2. The vacuum clothes dryer according to claim 1, characterized in that: The clothes dryer is provided with a heating mechanism, which can heat the gas, and the gas delivery mechanism can deliver the heated high-temperature gas to the clothes placement bin (5).

3. The vacuum clothes dryer according to claim 2, characterized in that: The clothes dryer is provided with an outer barrel (8), the interior of the outer barrel (8) is the clothes storage compartment (5), and the outer barrel (8) is provided with an openable and closable compartment door (6); an inner barrel (7) is also provided in the outer barrel (8), and a vent hole is provided in the inner barrel (7); and a rolling mechanism is provided in the clothes dryer, and the rolling mechanism can drive the inner barrel (7) to roll in the outer barrel (8) so as to turn over the clothes placed in the inner barrel (7).

4. The vacuum clothes dryer according to claim 3, characterized in that: The heating mechanism comprises a plurality of heating tubes (2), the heating tubes (2) correspondingly extending into the interlayer between the outer barrel (8) and the inner barrel (7); a sleeve (3) is sleeved on the heating tube (2), the sleeve (3) isolates the heating tube (2) outside the clothing storage bin (5), so that the heating tube (2) does not directly contact the water vapor in the clothing storage bin (5), and forms a gas heating channel between the heating tube (2) and the sleeve (3).

5. The vacuum clothes dryer according to claim 4, characterized in that: The gas delivery mechanism comprises a gas delivery pipe (18), the two ends of which are respectively connected to the gas heating channel and the clothing storage bin (5); a gas delivery valve (15) is provided on the gas delivery pipe (18), and when the gas delivery valve (15) is opened, the gas delivery pipe (18) can deliver heated high-temperature gas to the clothing storage bin (5).

6. The vacuum clothes dryer according to claim 5, characterized in that: The clothes dryer is provided with an air storage chamber (4), the air delivery pipe (18) and the gas heating channel are both connected to the air storage chamber (4), the gas heated in the gas heating channel can be stored in the air storage chamber (4), and the air storage chamber (4) can supply the heated high-temperature gas to the air delivery pipe (18); the air storage chamber (4) is arranged outside the outer barrel (8), and when the air storage chamber (4) is filled with high-temperature gas, a gas insulation layer is formed outside the clothing storage bin (5).

7. The vacuum clothes dryer according to claim 6, characterized in that: The air storage chamber (4) is connected to an air intake pipe (9), the air intake pipe (9) is in communication with the outside, and an air intake valve (10) is provided on the air intake pipe (9); when the air intake valve (10) and the air delivery valve (15) are opened, outside air can enter the clothing storage bin (5) through the air intake pipe (9), the air storage chamber (4) and the air delivery pipe (18), so that the clothing storage bin (5) is restored to a normal pressure environment, so that the bin door (6) can be opened.

8. The vacuum clothes dryer according to claim 1, characterized in that: The vacuum extraction mechanism comprises a water circulation vacuum pump (16), the water circulation vacuum pump (16) being connected to the clothing storage bin (5) via an exhaust pipe (13), and an exhaust valve (12) being arranged on the exhaust pipe (13); when the exhaust valve (12) is opened, the water circulation vacuum pump (16) can extract gas in the clothing storage bin (5) via the exhaust pipe (13).

9. The vacuum clothes dryer according to claim 1, characterized in that: The clothes dryer is provided with a dew point meter (11), which can detect the dew point in the clothes storage bin (5) to judge the dryness of the clothes.

10. The clothes drying method of a vacuum clothes dryer according to claim 6, characterized in that: During the clothes drying process of the clothes dryer, the heating mechanism stores the heated high-temperature gas in a gas storage chamber (4) arranged outside the clothes storage bin (5); and the vacuum pumping mechanism and the gas supply mechanism work alternately, so that the interior and the periphery of the clothes storage bin (5) are alternately in a high-temperature gas environment, while the interior of the clothes storage bin (5) is alternately in a high-temperature gas environment and a vacuum environment.

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