KR101437929B1 - Rotary dryer using far-infrared for clothes and method of control thereof - Google Patents

Abstract

Provided in the present invention are a rotary dryer using far-infrared rays for clothes which heats an object to be dried with far-infrared rays to increase energy efficiency and lowers the heating point with a pressure reducing device to reduce damages to the object to be dried, and a method for controlling the dryer. The rotary dryer using far-infrared rays for clothes of the present invention comprises a body including a sealed space inside; a rotary container which includes a receiving unit inside for receiving the object to be dried and which is installed inside the body to be rotated; a far-infrared panel which is installed on the body and radiates far-infrared rays to the inside of the rotary container; and a pressure reducing device which is installed on the body and reduces the pressure inside the body to lower the evaporation temperature of moisture.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a far-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a far infrared ray rotary dryer for clothing and a control method thereof, and more particularly, to a far infrared ray rotary dryer for clothes which heats and dries clothes, such as clothes, with far infrared rays and a control method thereof.

Recently, the population living in high-rise buildings such as apartments and office buildings is increasing.

However, such a high-rise building is not sunlight well and has a short sunshine period, and thus the laundry is not dried well, resulting in odor and propagation of bacteria in the laundry.

To solve this problem, the use of clothes dryer is increasing in each household.

In addition, since a large amount of clothes must be handled in a laundry or a garment factory, a clothes dryer has been used for many years.

Generally, a clothes dryer refers to a device for drying laundry through a series of processes by forcibly supplying hot and dry air to a wet laundry in a drum.

Such a clothes dryer is divided into an exhausting type and a condensing type clothes dryer in accordance with a method of treating the humid air generated in the drying process of the drying subject.

The exhaust type clothes dryer uses a method of drying the clothes by supplying the outside air and exhausting the high humidity air discharged from the drum to the outside of the dryer, and the condensation type clothes dryer condenses the high humidity air discharged from the drum in the condenser, , And then the dry air is supplied to the drum again and recirculated.

In addition, the clothes dryer is divided into a petroleum boiler heating system and a magnetron heating system depending on the heating source of the object to be dried.

However, in the case of the oil boiler heating method, there is a problem that the space occupies a lot of space and energy loss is large. In the case of the magnetron heating method, interference occurs between the waveguides and the temperature difference becomes severe depending on the direction and position. Causing a problem of damaging the laundry.

0001) Korean Patent No. 10-1227481

An object of the present invention is to provide a far infrared ray rotary dryer for clothes and a control method therefor, which can reduce damage to objects to be dried by heating an object to be dried with far infrared rays to improve energy efficiency and lowering a heating point by a pressure- It has its purpose.

According to an aspect of the present invention, there is provided a far infrared ray rotary dryer for clothes comprising: a body having a closed space therein; A rotatable body having a receiving portion for receiving an object to be dried therein and rotatably mounted in the body; A far infrared ray panel mounted on the main body and irradiating a far infrared ray into the rotor; A decompression device mounted on the main body and reducing a vaporization temperature of water by reducing a pressure inside the main body; .

A calorie recovery system installed in the main body, for generating high-temperature dry air by exchanging heat between water vapor generated in the dry matter heated by the far-infrared ray and external air, and supplying the high-temperature dry air to the inside of the spinneret; .

The heat recovery system may further include a first blower connected to the main body and sucking steam generated in the laundry to discharge the steam to the outside; A heat exchanger connected to the first blower unit and having a housing through which water vapor sucked by the aspirator unit 1 passes and is discharged to the outside; and a heat exchanger provided inside the housing; A second blower installed at the other end of the housing for sucking outside dry air and supplying the dry air to the housing; A high-temperature dry air supply unit provided between the housing and the main body, for heating the heated gun air while passing through the heat exchanger to generate high-temperature dry air, and supplying the high-temperature dry air to the main body; .

A heat storage system that sucks and accumulates residual heat remaining in the rotary tub after the drying operation of the laundry is completed; .

The heat storage system includes a third blower installed in the main body and sucking residual heat remaining in the main body after the drying operation of the main body is completed to circulate the remaining heat, A first circulation passage for connecting the inside of the main body and the third ventilation device in a communicative manner, the residual heat in the main body being sucked and moved; A second circulation passage connected to the third blowing device and the first circulation passage, the second circulation passage having a closed loop structure in which the residual heat absorbed by the third blowing device is continuously circulated; A heater connected to the second circulation passage and reheating the residual heat moving through the second circulation passage; An accumulator connected to the second circulation passage and storing the residual heat heated by the heater; A third circulation passage connected between the second circulation passage and the inside of the main body and supplying the heat stored in the regenerator into the main body when reheating the dryer; .

A temperature sensor mounted on the body, the temperature sensor measuring a temperature inside the rotating body; A cooling blower installed in the main body and discharging the air inside the main body to the outside when the temperature inside the main body becomes a predetermined temperature or more through the temperature sensor; A cooling regulator installed in the main body and interlocked with the cooling blower in operation and regulating the amount of air sucked into the main body; .

According to an aspect of the present invention, there is provided a method of controlling a far-infrared rotary dryer for clothes, the method comprising: a body having a closed space therein; A rotatable body having a receiving portion for receiving an object to be dried therein and rotatably mounted in the body; A far infrared ray panel mounted on the main body and irradiating a far infrared ray into the rotor; A decompression device mounted on the main body and reducing a vaporization temperature of water by reducing a pressure inside the main body; A calorie recovery system for generating high-temperature dry air by exchanging heat between water vapor generated in the object to be dried and external air heated by far-infrared rays, and supplying the high-temperature dry air to the inside of the rotor; A heat storage system that sucks and accumulates residual heat remaining in the rotary tub after the drying operation of the laundry is completed; And a control method of the control method, the method comprising: a first step of rotating the rotator to dry the laundry by centrifugal force; A second step of rotating the rotator while controlling the far-infrared ray panel and the decompression device to heat an object to be dried; A third step of controlling the heat recovery system to supply high-temperature dry air to the inside of the spinneret when the temperature inside the spinneret reaches a predetermined temperature or more; A fourth step of controlling the heat accumulation system to accumulate the residual heat in the rotary kiln after the drying operation of the drying subject is completed; .

The third step is performed when the temperature inside the main body is maintained at the target temperature and the humidity inside the main body is within the range of 15 to 5%.

INDUSTRIAL APPLICABILITY The far infrared ray rotary dryer for clothes and the control method thereof according to the present invention as described above have the following effects.

The pressure reducing device 140 can minimize the damage of the material to be dried by heat by lowering the vaporization temperature of the material to be dried, that is, the boiling point by lowering the pressure of the first closing part 111, Thereby shortening the drying time.

The heat exchanger 152 partially heats the dry air supplied to the rotator 120 for drying the laundry using the heat of the steam discharged to the outside, Thereby increasing the energy efficiency.

After the operation of the dryer is completed, the heat storage system 160 sucks and accumulates the high-temperature air remaining in the main body 110 when the first sealing part 111 is cooled, (110), thereby reducing the amount of energy consumed in reheating, thereby increasing energy efficiency.

FIG. 1 is a schematic view showing an operation process in the first step and the second step of the far infrared ray rotary dryer for clothes and the control method thereof according to the embodiment of the present invention.
FIG. 2 is a configuration diagram illustrating an operation process in a third step of a far infrared ray rotary dryer for clothes and a control method thereof according to an embodiment of the present invention;
3 is a detailed configuration diagram of a heat exchanger according to an embodiment of the present invention,
FIG. 4 is a configuration diagram illustrating an operation process in a fourth step of the far infrared ray rotary dryer for clothes and the control method thereof according to the embodiment of the present invention;
FIG. 5 is a configuration diagram illustrating an operation of the far-infrared rotary dryer for clothes and the control method thereof in the fourth step according to the embodiment of the present invention;
6 is a graph showing changes in temperature and humidity during operation of a far-infrared rotary dryer for clothes according to an embodiment of the present invention.

FIG. 1 is a block diagram illustrating the operation of the Far-Infrared Rotary Dryer for clothes and the control method thereof according to an embodiment of the present invention in a first step and a second step. FIG. 2 is a perspective view of a far- FIG. 3 is a detailed schematic diagram of a heat exchanger according to an embodiment of the present invention. FIG. 4 is a view showing a far-infrared rotary dryer for clothes according to an embodiment of the present invention and its control FIG. 5 is a block diagram illustrating the operation of the far-infrared rotary dryer for clothes and the control method thereof in the fourth step according to an embodiment of the present invention. FIG. 1 is a graph showing changes in temperature and humidity during operation of a far infrared ray rotary dryer for clothes according to an embodiment.

1 to 5, a far infrared ray rotary dryer for clothes and a method of controlling the same according to an embodiment of the present invention includes a body 110, a rotor 120, a far infrared ray panel 130, a decompression device 140, A heat recovery system 150, a heat storage system 160, a temperature sensor 170, a cooling blower 180, and a cooling regulator 190.

The main body 110 is formed in a substantially hexahedral shape, and a first closed portion 111 and a second closed portion (not shown) are formed in the closed space.

Although not shown in the drawing, the first enclosure 111 is equipped with the rotator 120, and the second enclosure includes the far infrared panel 130, the decompressor 140, the heat recovery system 150 A heat storage system 160, a temperature sensor 170, a cooling blower 180, a cooling regulator 190, and a control unit.

In particular, since the first sealing part 111 generates a large amount of water vapor and heat and noise, the first sealing part 111 and the second sealing part are configured to be capable of performing heat insulation, waterproofing, and soundproofing .

The rotor 120 has a cylindrical shape and is open at its one end and is provided with a receiving portion 121 in which an object to be dried is received and is rotatably mounted inside the first closing portion 111.

Although not illustrated in detail in the drawing, a plurality of through holes (not shown) are formed on the outer circumferential surface of the rotator 120, and the first sealing portion 111 and the receiving portion (not shown) 121 communicate with each other.

Since the structure of the rotator 120 is rotated by a motor, the structure of which is the same as that of a conventional drum type washing machine, a detailed description thereof will be omitted.

1, the rotating body 120 is rotated forward and backward in the direction of the arrow as shown in FIG. 1, and the moisture of the laundry contained therein is removed by centrifugal force, and the laundry is uniformly mixed, Infrared rays of the display unit 130 uniformly.

The far infrared ray panel 130 is attached to the first sealing part 111 and is disposed on each side of the rotator 120 as shown in FIG.

The far infrared ray panel 130 radiates far-infrared rays into the rotator 120, and causes the moisture of the laundry contained in the rotator 120 to be heated to be evaporated.

Here, the far infrared ray is one of the long infrared rays having a wavelength, and is a ray that penetrates deeply into an object to generate heat.

The pressure reducing device 140 is installed in the main body 110, that is, the second sealing part, and is connected to the first sealing part 111 to reduce the pressure of the first sealing part 111, Lower the vaporization temperature of water contained in the dried product.

Although not shown in detail in the drawings, the pressure-reducing device 140 includes a sound-pressure tank 140 and a pressure-reducing pump (not shown), and the sound-pressure tank 140 and the first sealing part 111 And an open / close valve (not shown) is provided in the sound pressure tank 140. [

The sound pressure tank 140 is kept in a substantially vacuum state by the decompression pump.

The decompression pump is preferably composed of a conventional rotary pump, and is decompressed to about 400 to 100 mmHg to evaporate moisture at a low temperature of about 70 DEG C or less.

As shown in FIG. 1, when the opening / closing valve is opened during the operation of the liquefier, since the pressure of the sound pressure tank is lower than the first lid 111 by the air pressure difference, 111 is moved to the sound pressure tank, and the pressure of the first muffle portion is lowered.

In this way, the pressure-reducing device 140 can minimize the damage of the object to be dried by heat by lowering the vaporization temperature of the object to be dried, that is, the boiling point by lowering the pressure of the first closing part 111, The drying time is shortened by heating the drying object.

On the other hand, the heat recovery system 150 generates high-temperature dry air by mutually exchanging water vapor generated in the dry-laid material heated by far-infrared rays and air outside the main body 110, (120). ≪ / RTI >

2, the heat recovery system 150 includes a first fan unit 151, a heat exchanger 152, a second fan unit 153, and a high-temperature dry air unit 154, .

The first fan 151 is installed in the second closed portion of the main body 110 and sucks the high temperature steam generated while the main body accommodated in the rotor 120 is heated and discharges the steam to the outside do.

The structure of the first blower 151 is the same as that of a general blower, and thus a detailed description thereof will be omitted.

The heat exchanger 152 is configured to perform heat exchange between the hot water vapor discharged by the first blowing device 151 and the external dry air supplied by the second blowing device 153 described later.

Specifically, the heat exchanger 152 includes a housing 152a and a heating pipe 152b as shown in FIG.

One end of the housing 152a is connected to the first blower 151 and the other end thereof is opened to the outside. The high-temperature water vapor sucked by the first blower 151 passes through the housing 152a, do.

The heating pipe 152b is installed inside the housing 152a and has one end connected to the second blowing device 153 to be described later and the other end connected to the high temperature dry air device 154 to be described later, The second air blowing device 153 introduces the external dry air into the inside.

Here, the heating pipe 152b is formed to be bent into several strands.

By the above structure, the heat of the steam passing through the housing 152a is transferred to the external dry air passing through the heating pipe 152b to heat the dry air.

The second fan unit 153 is installed at one end of the housing 152a and sucks the external dry air and supplies the sucked dry air into the housing 152a of the heat exchanger 152. [ (153) is the same as a general ventilation fan, and thus a detailed description thereof will be omitted.

The high temperature dry air device 154 is connected to the other end of the heating pipe 152b and has a function of heating the heated gun air to a higher temperature again through the heating pipe 152b of the heat exchanger 152 do.

Also, the high-temperature dry air heated by the high-temperature dry air unit 154 is supplied to the first enclosure 111 of the main body 110 to dry the main body of the laundry contained in the main body 110.

In this way, the heat exchanger 152 heats the dry air supplied to the rotator 120 for drying the laundry using the heat of the steam discharged to the outside, And the energy efficiency is increased.

In other words, conventionally, a strong ventilation fan is used to remove moisture from the inside of the main body, thereby releasing moisture into the air. Inevitably, energy consumption for drying is rapidly increased. However, The far infrared ray rotary dryer can increase the energy efficiency by applying the heat recovery system 150 that recovers the amount of heat discharged to the atmosphere.

The heating tube 152b is bent in a plurality of strands to maximize the surface area of the heating tube 152b in a limited space inside the housing 152a to increase the heat exchange efficiency.

Meanwhile, the heat storage system 160 has a function of sucking and accumulating residual heat remaining in the rotator 120 when the first enclosure 111 is cooled after the drying operation of the laundry is completed do.

4, the heat storage system 160 includes a third blowing unit 161, a first circulation passage 162, a second circulation passage 163, a heater 164, 165 and a third circulation passage 166.

The third fan unit 161 is mounted on the second closed portion of the main body 110 and the residual heat remaining in the rotator 120 after the drying operation of the main body 110 is completed, And circulates through the first circulation passage 162, the second circulation passage 163, and the third circulation passage 166 to be described later.

Since the structure of the third fan unit 161 is the same as that of the unidirectional fan unit, detailed description is omitted.

The first circulation passage 162 is a connection pipe for connecting between the first sealing part 111 of the main body 110 and the third blowing device 161. The first circulation passage 162 is provided with an opening / closing valve 162a Is mounted.

The second circulation passage 163 is connected to the third blowing unit 161 and the first circulation passage 162 and is configured to continuously circulate the residual heat absorbed by the third blowing unit 161, Structure.

Closing valves 163a and 163b are mounted in the second circulation passage 163 in the vicinity of the third blower unit 161 and the regenerator 165, respectively.

The heater 164 is connected to the second circulation passage 163 and reheats the residual heat moving through the second circulation passage 163, that is, the hot air.

The heater 164 is preferably made of a conventional conventional pin heater.

The regenerator 165 is connected to the second circulation passage 163 and functions to store residual heat heated by the heater 164.

The regenerator 165 is generally the same as the conventional heat storage device, and thus a detailed description thereof will be omitted.

The third circulation passage 166 is connected between the second circulation passage 163 and the first hermetically sealed portion 111 of the main body 110, And serves as a passage for supplying the first sealing portion 111 of the main body 110. [

The third circulation passage 166 is also equipped with an on-off valve 166a.

Closing valve 161a of the first circulation passage 161 and the second valve 161a of the first circulation passage 161 when the residual heat, that is, the high-temperature air, is sucked in the first closing portion 111, The valves 163a and 163b of the circulation passage 163 are opened and the valve 163a of the third circulation passage 166 is shut off.

Thereafter, when the first sealing part 111 is cooled, the opening / closing valve 161a of the first circulating passage 161 is shut off, and the hot air is continuously circulated along the second circulating passage 163 Thereby maintaining the temperature.

Thereafter, when the first enclosure 111 is heated to use the dryer, the opening / closing valve 163a of the second circulation passage 163 and the opening / closing valve 166a of the third circulation passage 166 are opened, And the hot air that has been stored is moved to the first hermetically sealed part 111 through the third circulation passage 166.

After the operation of the dryer is completed, the heat storage system 160 sucks and accumulates the high-temperature air remaining in the main body 110 when the first enclosure 111 is cooled, The energy is consumed at the time of reheating, thereby reducing the amount of energy consumed during reheating, thereby increasing energy efficiency.

That is, conventionally, after the drying is completed, since the inside of the body is cooled from about 70 ° C to 25 ° C, there is a problem that it takes much time to raise the initial temperature when restarting. However, in the far- The system 160 can be used to accumulate heat, and then the temperature can be quickly reached at the time of restarting.

The temperature sensor 170 is installed between the third circulation passage 166 and the main body 110 and measures the temperature of the air inside the main body 110.

The cooling blower 180 is mounted on the second sealing part of the main body 110. When the temperature inside the main body 110 measured by the temperature sensor 170 becomes a predetermined temperature or more, 111) to the outside.

The cooling regulator 190 is attached to the first sealing part 111 of the main body 110 and opens the first sealing part 111 of the main body 110 in conjunction with the operation of the cooling blower 180 .

That is, the cooling regulator 190 controls the amount of outside air sucked into the main body 110 by interlocking with the cooling blower 180 when the first sealing part 111 is overheated, to be.

The operation sequence of the far infrared ray rotary dryer for clothes and the control method therefor according to the present invention having the above configuration will be described.

As shown in FIG. 5, the Far Infrared Rotary Dryer for clothes and the control method thereof according to the present invention include a first step (S10), a second step (S20), a third step (S30), and a fourth step (S40).

The first step (S10) is a step of rotating the rotator 120 to dry the laundry by centrifugal force.

Here, although not shown in detail in the drawing, a separate drainage device is provided, and the drainage device discharges moisture generated from the material to be drained to the outside.

The second step S20 is performed simultaneously with the first step S10.

That is, the second step S20 rotates the rotator 120 and simultaneously controls the far-infrared ray panel 130 and the decompression device 140 to heat the laundry.

6, the temperature and humidity of the first enclosure 111 gradually increase, and when the temperature reaches the target temperature, the cooling blower 180 and the cooling regulator 190 The temperature of the first sealing part 111 is kept constant and the humidity is lowered.

Thereafter, in the third step S30, the heat recovery system 150 is controlled to supply the high-temperature gun air into the rotator 120. [

6, in the third step S30, the temperature of the inside of the main body 110 is maintained at the target temperature, and the inside of the main body 110, that is, the first sealing part 111, Is 15 to 5%.

The third step S30 is performed when the humidity of the first enclosure 111 is 15 to 5% and the high-temperature gun air is supplied to the first enclosure 111, And the drying time is shortened.

If the dried material is dried to a moisture content of 5% by a single method irrespective of the water content of the material to be dried, it takes a long time and energy consumption is increased, which is not preferable.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims something to do.

110: main body, 111: first sealing portion,
120: tradition, 121: receptacle,
130: far-infrared panel, 140: decompression device,
150: heat recovery system, 160: heat storage system,
170: temperature sensor, 180: cooling blower,
190: cooling throttle plate,

Claims (8)

A body having a closed space therein;
A rotatable body having a receiving portion for receiving an object to be dried therein and rotatably mounted in the body;
A far infrared ray panel mounted on the main body and irradiating a far infrared ray into the rotor;
A decompression device mounted on the main body and reducing a vaporization temperature of water by reducing a pressure inside the main body; , ≪ / RTI &
A calorie recovery system installed in the main body and generating high-temperature dry air by exchanging heat between water vapor generated in the dry-laid material heated by the far-infrared ray and external air, and supplying the high- ≪ / RTI &
Wherein the heat recovery system comprises:
A first blower connected to the main body, for sucking steam generated in the laundry and discharging the steam to the outside;
A heat exchanger connected to the first blower unit and having a housing through which water vapor sucked by the aspirator unit 1 passes and is discharged to the outside; and a heat exchanger provided inside the housing;
A second blower installed at the other end of the housing for sucking outside dry air and supplying the dry air to the housing;
A high-temperature dry air supply unit provided between the housing and the main body, for heating the heated gun air while passing through the heat exchanger to generate high-temperature dry air, and supplying the high-temperature dry air to the main body; Wherein the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface is convex.
delete delete The method according to claim 1,
A heat storage system that sucks and accumulates residual heat remaining in the rotary tub after the drying operation of the laundry is completed; Further comprising: a rotary member for rotating the rotary member.
5. The method of claim 4,
The heat storage system includes:
A third blower installed in the main body and sucking residual heat remaining in the main body after the drying operation of the main body is completed to circulate;
A first circulation passage for connecting the inside of the main body and the third ventilation device in a communicative manner, the residual heat in the main body being sucked and moved;
A second circulation passage connected to the third blowing device and the first circulation passage, the second circulation passage having a closed loop structure in which the residual heat absorbed by the third blowing device is continuously circulated;
A heater connected to the second circulation passage and reheating the residual heat moving through the second circulation passage;
An accumulator connected to the second circulation passage and storing the residual heat heated by the heater;
A third circulation passage connected between the second circulation passage and the inside of the main body and supplying the heat stored in the regenerator into the main body when reheating the dryer; Wherein the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface of the outer circumferential surface is convex.
The method according to claim 1,
A temperature sensor mounted on the body, the temperature sensor measuring a temperature inside the rotating body;
A cooling blower installed in the main body and discharging the air inside the main body to the outside when the temperature inside the main body becomes a predetermined temperature or more through the temperature sensor;
A cooling regulator installed in the main body and interlocked with the cooling blower in operation and regulating the amount of air sucked into the main body; Further comprising: a rotary member for rotating the rotary member.
A body having a closed space therein; A rotatable body having a receiving portion for receiving an object to be dried therein and rotatably mounted in the body; A far infrared ray panel mounted on the main body and irradiating a far infrared ray into the rotor; A decompression device mounted on the main body and reducing a vaporization temperature of water by reducing a pressure inside the main body; A calorie recovery system for generating high-temperature dry air by exchanging heat between water vapor generated in the object to be dried and external air heated by far-infrared rays, and supplying the high-temperature dry air to the inside of the rotor; A heat storage system that sucks and accumulates residual heat remaining in the rotary tub after the drying operation of the laundry is completed; And a control method of the control method,
A first step of rotating the rotator to dry the laundry by centrifugal force;
A second step of rotating the rotator while controlling the far-infrared ray panel and the decompression device to heat an object to be dried;
A third step of controlling the heat recovery system to supply high-temperature dry air to the inside of the spinneret when the temperature inside the spinneret reaches a predetermined temperature or more;
A fourth step of controlling the heat accumulation system to accumulate the residual heat in the rotary kiln after the drying operation of the drying subject is completed; And controlling the rotation of the far infrared ray rotating clothes dryer.
8. The method of claim 7,
In the third step,
Wherein the control is performed when the temperature inside the main body is maintained at a target temperature and the humidity inside the main body is within a range of 15 to 5%.

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