JP2013220138A - Dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dryer which has a dehumidification function, achieves high energy saving performance, and even achieves compactification.SOLUTION: A dryer of this embodiment includes a vortex tube, a drying chamber which accommodates an object to be dried inside, and a heat exchange part. The vortex tube has an air introduction port, a hot air exit and a cool air exit, and it generates hot air and cool air from the air introduced from the air introduction port, discharges hot air from the hot air exit and discharges cool air from the cool air exit. The object to be dried is dried by supplying the hot air discharged from the hot air exit of the vortex tube into the drying chamber, and also dehumidification is performed by carrying out heat exchange between exhaust air discharged from the drying chamber and the cool air discharged from the cool air exit of the vortex tube at the heat exchange part.

Description

  Embodiments of the present invention relate to a dryer.

  In a dryer, for example, a clothes dryer that dries clothes, heating means for sending warm air to a drying chamber that houses clothes to be dried (objects to be dried) and moisture removed from the clothes Generally, a dehumidifying means is provided. In general, products that are heated using a heater, are cooled and dehumidified using water, and those that are heated and dehumidified using a heat pump using a compressor are commercialized. In addition, as a low-priced model, there are a model that simply sends only air at an outside temperature to the drying chamber, and a model that performs only heating with a heater and releases moisture containing air to the outside of the machine.

  In the conventional dryer having the above-described configuration, if it does not have a dehumidifying function, moisture is released to the outside of the machine, which not only impairs the habitability of the living space, but also causes condensation on the walls, etc. In some cases, problems with the surrounding room may occur, and the specifications were insufficient for drying equipment.

  On the other hand, among the dryers having a dehumidifying function, those that use a heater heating type and a water-cooled heat exchanger have been wasted, such as requiring a lot of tap water for dehumidification. Heat pump dryers are recognized as systems with high energy-saving performance because their work can be focused on transferring heat energy. However, there is a problem that it is difficult to make the system compact even if a water-cooled heat exchanger or a heat pump type is used.

JP 2009-56112 A JP 2010-198015 A (see paragraph [0026]) Japanese Patent Laying-Open No. 2007-175743 (see paragraph [0020])

  Therefore, a dryer that has a dehumidifying function, has high energy saving performance, and can also be made compact.

  The dryer according to the present embodiment includes a vortex tube, a drying chamber that houses an object to be dried, and a heat exchange unit. The vortex tube has an air inlet, a hot air outlet, and a cold air outlet, generates hot air and cold air from the air introduced from the air inlet, discharges the hot air from the hot air outlet, and discharges the cold air from the cold air outlet. Discharge. The hot air discharged from the hot air outlet of the vortex tube is supplied to the drying chamber to dry the object to be dried, and the exhaust air discharged from the drying chamber and the cold air discharged from the cold air outlet of the vortex tube are used as a heat exchanger. The heat is exchanged at dehumidification.

The perspective view which shows schematic structure of the dryer by 1st Embodiment. Schematic back view Diagram showing the wind flow near the unit case Diagram showing overall wind flow Principle explanatory diagram for explaining the principle of vortex tube FIG. 1 equivalent view of a dryer according to the second embodiment. 3 equivalent figure 4 equivalent figure FIG. 1 equivalent view of a dryer according to a third embodiment. FIG. 1 equivalent view of a dryer according to a fourth embodiment. 2 equivalent diagram The figure which shows schematic structure of the air path vicinity for heat pumps 3 equivalent figure 4 equivalent figure

Hereinafter, the dryer by several embodiment is demonstrated based on drawing. In addition, in each embodiment, the same code | symbol is attached | subjected to the substantially same component, and description is abbreviate | omitted.
(First embodiment)
A first embodiment will be described with reference to FIGS. First, in FIG. 5, the basic structure of the vortex tube used in this embodiment will be described. The vortex tube 1 includes a tube body 2 having a cylindrical shape extending in the left-right direction in FIG. 5, an air inlet 3, a control valve 4, a hot air outlet 5, and a cold air outlet 6. The air introduction port 3 is located on the left side in the left-right direction (longitudinal direction) in the tube body 2 and is provided in an upward direction perpendicular to the longitudinal direction of the tube body 2. A control valve 4 is provided inside the right end portion of the tube body 2, and a gap between the inner surface of the right end portion of the tube body 2 and the outer peripheral surface of the control valve 4 is used as a hot air outlet 5. The left end of the tube body 2 is a cold air outlet 6.

  A discharge port 9 a of a fan casing 9 of a blower 8 is connected to the air introduction port 3 via a buffer tank 7. The fan casing 9 has a suction port 9b on the upper surface side opposite to the discharge port 9a. The air inlet 3 is formed to have a smaller opening area than the buffer tank 7. A fan 10 that is rotated by a motor (not shown) is disposed in the fan casing 9.

  Here, when the fan 10 of the blower 8 is rotationally driven, outside air is sucked into the fan casing 9 through the suction port 9b by the blowing action, and the sucked air passes through the buffer tank 7 from the discharge port 9a. It is introduced into the air inlet 3 of the vortex tube 1. At this time, the air supplied from the buffer tank 7 to the air introduction port 3 is throttled by the air introduction port 3 and is supplied into the tube body 2 at a high speed.

  When high-speed air (compressed air) is supplied into the tube main body 2 from the air inlet 3 (see arrow A1), the air moves toward the hot air outlet 5 while swirling in the tube main body 2 at high speed. A flow (primary air flow, see arrow A2). Part of the air flow toward the hot air outlet 5 passes through the control valve 4 and is discharged from the hot air outlet 5 (see arrow A3), and the remaining air flow is routed by the control valve 4 and is also high speed. Thus, the air flows toward the cold air outlet 6 while swirling in a spiral shape (secondary air flow, see arrow A4). At this time, the flow of the secondary air flow is inside the primary air flow. The air particles in the inner secondary air flow have the same rotation time as the air particles in the outer primary air flow, and the actual movement speed of the secondary air flow is slower than the flow of the outer primary air flow. The kinetic energy is converted from the inner secondary air flow to the outer primary air flow due to the difference in kinetic speed between the primary air flow and the secondary air flow. This raises the temperature of the primary air flow and lowers the temperature of the secondary air flow. As a result, warm air having a temperature higher than that of air introduced from the air inlet 3 is discharged from the hot air outlet 5, and conversely, from the cold air outlet 6, air is introduced from the air inlet 3. Cold air with a lowered temperature is discharged. In the present embodiment, hot air and cold air generated using such a vortex tube 1 are used in the dryer.

  1 and 2 show a schematic configuration of a drum-type washing and drying machine for washing and drying clothes as an object to be dried. In these FIG. 1 and FIG. 2, the outer box is omitted. In FIG. 1, the right side will be described as the front and the left side as the rear. A water tank 13 is disposed on the base plate 12 of the washing and drying machine, and a drum 14 as a rotating tank is rotatably accommodated in the water tank 13. The water tank 13 has a substantially cylindrical container shape with its rear portion closed, and is prevented by a pair of suspensions 15 in a lateral state in which the axial direction faces the front-rear direction (the left-right direction in FIG. 1) and in a forward-tilt state. Supported in a shaking state. The front part of the water tank 13 is open and communicates with an inlet / outlet (not shown) provided in the outer box. The water tank 13 is provided with an air inlet 16 at the upper part of the back surface and an air outlet 17 at the upper part of the outer peripheral part of the front part.

  Similarly to the water tank 13, the drum 14 has a cylindrical container shape whose rear portion is closed. The drum 14 is disposed in the water tank 13 so as to be rotatable in a lateral state in which the axial direction faces the front-rear direction and in an inclined state where the front is raised. Has been. The front portion of the drum 14 is also open and communicates with the entrance / exit. A large number of holes 18 are formed in the peripheral wall of the drum 14. This drum 14 accommodates the laundry put in from the doorway, and functions as a washing tub, a dehydration tub, and a drying tub. The drum 14 is directly driven to rotate by a drum motor 19 (see FIG. 2) as a driving means provided on the back surface of the water tank 13. A baffle (not shown) is provided inside the drum 14.

  In this case, the water tank 13 for storing the drum 14 for storing the laundry (clothing) to be dried functions as a drying chamber. Although not shown, a drain port is provided at the bottom of the water tank 13, and a drain hose 21 is connected to the drain port via a drain valve 20. Although not shown, the washing and drying machine is also provided with a water supply device for supplying tap water into the water tank 13 (in the drum 14), for example.

  At the upper part of the water tank 13, a unit case 23 is provided in a fixed state. As shown in FIG. 3, the unit case 23 has a rectangular box shape, and the inside thereof is partitioned into a vortex tube housing portion 25 and a heat exchange portion 26 by a partition wall 24. The vortex tube 1 is accommodated in the vortex tube accommodating portion 25. In this case, the vortex tube 1 is arranged in the vortex tube accommodating portion 25 with the cold air outlet 6 facing the front (right side in FIG. 3) and the hot air outlet 5 facing the rear (left side in FIG. 3). . In the unit case 23, the rear end of the partition wall 24 reaches the rear wall 23a of the unit case 23, but the front end 24a does not reach the front wall 23b of the unit case 23, and the front end 24a A communication part 27 is formed between the front wall 23b and the vortex tube housing part 25 and the heat exchange part 26. Therefore, the cold air discharged from the cold air outlet 6 of the vortex tube 1 flows into the heat exchanging portion 26 side through the communication portion 27.

  A hot air passage 28 is provided on the back of the water tank 13. The warm air passage 28 extends in the vertical direction, the upper portion communicates with the warm air outlet 5 of the vortex tube 1, and the lower portion is connected to the water tank 13 through the blowing port 16 provided on the back surface of the water tank 13. It communicates with the inside. Accordingly, the warm air discharged from the warm air outlet 5 of the vortex tube 1 passes through the warm air air passage 28 and is supplied from the air inlet 16 into the water tank 13 and thus into the drum 14. An expandable / contractible bellows-like air passage 30 is provided at an intermediate portion in the longitudinal direction of the hot air air passage 28.

  An exhaust air passage 31 is provided at the upper part of the front portion of the outer periphery of the water tank 13 so as to be located on the left side of the unit case 23. The exhaust air passage 31 has a lower portion communicating with the water tank 13 through the blowout port 17 provided at an upper portion of the front portion of the peripheral wall portion of the water tank 13, and an upper portion through the bellows-like air passage 33. 34 is connected to the entrance. The outlet of the filter unit 34 is connected to a heat exchanger inlet 35 (see FIG. 3) provided at the front of the left side wall 23c of the unit case 23. Therefore, the air in the water tank 13 is discharged from the outlet 17 to the exhaust air passage 31 side, passes through the bellows-like air passage 33 and the filter unit 34 in order, and flows into the heat exchange portion 26 from the heat exchange portion inlet 35. It merges with the cold air discharged from the cold air outlet 6 of the vortex tube 1.

  A filter (not shown) is provided in the filter unit 34, and the filter captures lint and the like contained in the exhaust discharged from the water tank 13. The rear wall 23a of the unit case 23 is provided with a heat exchanging portion outlet 36 (see FIG. 3) located behind the heat exchanging portion 26, and the air in the heat exchanging portion 26 is heated by the heat exchanging portion outlet 36. To the outside of the unit case 23.

  The washing and drying machine having the above-described configuration is provided with an operation panel having an operation input unit and a display unit for inputting a course, conditions, and the like, and a control device mainly composed of a microcomputer, although not illustrated. The washing / drying machine is operated by the setting of the operation input unit and the control program prepared in advance by the control device.

  Next, the operation of the above configuration will be described. For example, the case of a standard course from laundry washing to drying will be described. First, in a state where the laundry is accommodated in the drum 14, the operation input unit of the operation panel is operated to operate the start button. Based on this, the control unit executes a standard course from washing to drying.

  In the washing process, first, with the drain valve 20 closed, water is supplied to the set water level in the water tank 13 (and consequently) the drum 14 by the water supply device, and the detergent is added. Then, the drum 14 is rotated by the drum motor 19 at a low rotational speed of, for example, about 50 rpm, and the forward rotation and the reverse rotation are repeated. Thereby, the laundry in the drum 14 is repeatedly washed and lifted by the baffle and is washed.

  When this washing operation is completed, the drain valve 20 is opened, and the water in the water tank 13 and thus the water in the drum 14 is discharged to the outside of the machine. Then, the drum motor 19 rotates the drum 14 in one direction at a high speed (for example, 600 to 1500 rpm). ) To spin-dry the laundry. When this intermediate dehydration is completed, the water supply device supplies water to the set water level in the state where the drain valve 20 is closed again, and a rinsing process similar to the washing process is performed. In the rinsing process, no detergent is used. After performing the rinsing process a predetermined number of times, a final dehydration process similar to the intermediate dehydration is performed, and then a drying process is performed.

  In the drying process, the fan 10 of the blower 8 is rotationally driven and the drum 14 is rotated at a low speed to repeat normal rotation and reverse rotation. As the fan 10 of the blower 8 is rotationally driven, air outside the machine is sucked into the fan casing 9 and the air inside the fan casing 9 is discharged from the discharge port 9a to the buffer tank 7. The air that has passed through the buffer tank 7 is supplied into the tube body 2 from the air inlet 3 of the vortex tube 1. Accordingly, as described above, hot air and cold air are generated in the vortex tube 1, and the hot air is discharged from the hot air outlet 5 and the cold air is discharged from the cold air outlet 6. Among these, the warm air discharged from the warm air outlet 5 passes through the warm air air passage 28 and is supplied from the blowing port 16 into the water tank 13 and then into the drum 14 (see FIG. 4). Further, the cold air discharged from the cold air outlet 6 flows into the heat exchange unit 26 from the communication unit 27.

  At this time, the drum 14 is rotated forward and reverse at a low speed as in the washing process, and the laundry in the drum 14 comes into contact with the warm air supplied into the drum 14 while being stirred. Accordingly, the laundry is warmed, the moisture of the laundry is taken away by the warm air, and the laundry is dried. Then, the air in the water tank 13 containing moisture is discharged from the outlet 17 to the exhaust air passage 31 side, passes through the bellows-like air passage 33 and the filter unit 34 in this order, and passes through the heat exchange portion inlet 35 to the heat exchange portion 26. In the heat exchanging portion 26, it merges with the cold air discharged from the cold air outlet 6 of the vortex tube 1. Thereby, in the heat exchanging unit 26, the moisture containing air discharged from the water tank 13 and the cold air discharged from the cold air outlet 6 of the vortex tube 1 exchange heat, and moisture contained in the air discharged from the water tank 13. Is dehumidified by condensation. Therefore, the cooled and dehumidified air is discharged from the heat exchange section outlet 36 to the outside of the unit case 23. By repeating this, the laundry in the drum 14 is dried. In addition, the dew condensation water which generate | occur | produced in the heat exchange part 26 is discharged | emitted outside the apparatus through the drainage path which is not shown in figure. When the above-described drying process is completed, the operation from washing to drying is completed.

  In the above-described embodiment, since the air discharged from the water tank 13 is dehumidified in the heat exchanging unit 26, moisture at the time of drying can be prevented from being released to the outside of the machine, and condensation on the wall or the like can be prevented. Generation etc. can be prevented as much as possible.

  In addition, since the laundry is dried by using the warm and cold air of the vortex tube 1 that uses a simple air flow, a large amount of tap water is not required for dehumidification, and the energy saving performance is high. In addition, unlike those using a water-cooled heat exchanger or a heat pump type, it is possible to reduce the size and weight. Furthermore, unlike the heat pump type, no refrigerant is required, so there is no need to worry about the processing of the refrigerant at the time of disposal.

(Second Embodiment)
6 to 8 show a second embodiment. The second embodiment is different from the first embodiment described above in the following points. As shown in FIG. 7, the heat exchange part outlet 36 in the unit case 23 is provided at the rear part of the upper wall 23 d of the unit case 23, and is connected to the heat exchange part outlet 36 at one end part of the return air passage 38. A certain lower end is connected. The return air passage 38 extends upward from the unit case 23, and the tip on the other end is connected to the suction port 9 b of the fan casing 9 in the blower 8.

  In the case of the above configuration, the air discharged from the water tank 13 and flowing into the heat exchange unit 26 and the cool air discharged from the cold air outlet 6 of the vortex tube 1 merge in the heat exchange unit 26 during the drying operation. Heat exchange, moisture is condensed and dehumidified. The dehumidified air is introduced into the suction port 9b of the fan casing 9 in the blower 8 through the return air passage 38 (see FIGS. 6 and 8). The air introduced into the inlet 9 b of the fan casing 9 is reintroduced into the air inlet 3 of the vortex tube 1.

  In such an embodiment, the air that has been dehumidified in the heat exchange section 26 is again introduced into the air inlet 3 of the vortex tube 1 to circulate the air, so that the air used for drying the laundry is used. Can be prevented from being released almost or not to the outside of the machine, so that the release of moisture and heat to the living space can be further suppressed.

(Third embodiment)
FIG. 9 shows a third embodiment. The third embodiment differs from the first embodiment described above in the following points. The warm air passage 28 connects the warm air outlet 5 of the vortex tube 1 and the inlet 16 of the water tank 13. An auxiliary heater 40 that constitutes an auxiliary heat source is provided in the warm air passage 28 so as to be positioned in the vicinity of the inlet 16. The auxiliary heater 40 heats the hot air supplied into the water tank 13 through the hot air air passage 28 by the generated heat, thereby further increasing the temperature of the hot air supplied into the water tank 13. . Thereby, the drying efficiency of the laundry in the drum 14 can be further improved.
You may make it provide the auxiliary heater 40 also in the warm air path 28 of 2nd Embodiment.
(Fourth embodiment)
10 to 14 show a fourth embodiment. The fourth embodiment is different from the above-described first embodiment in the following points. As shown in FIGS. 10 and 11, a heat pump air passage 42 is provided on the base plate 12 so as to be positioned below the water tank 13. In the heat pump air passage 42, as shown in FIGS. 11 and 12, a condenser 44 and an evaporator 45 constituting the heat pump 43 are disposed. As is well known, the heat pump 43 is configured by cycle-connecting a compressor 46, a condenser 44, an evaporator 45, and a throttle valve (not shown) with a refrigerant pipe (not shown).

  Here, when the compressor 46 of the heat pump 43 is driven, the refrigerant is compressed by the compressor 46 and flows into the condenser 44 as a high-temperature and high-pressure refrigerant, and air and heat flowing in the heat pump air passage 42. Exchange. As a result, the air flowing through the heat pump air passage 42 is heated, and on the contrary, the refrigerant is cooled and liquefied. The liquefied refrigerant flows into the evaporator 45 through a throttle valve (not shown), where it is vaporized and sucked into the compressor 46. Thereby, the evaporator 45 cools the air flowing through the air passage 42 for the heat pump.

  In the heat pump air passage 42, the suction port of the second blower 47 is connected to one end of the condenser 44 side. One end of a second warm air passage 49 is connected to the discharge port 47 a of the second blower 47 via a bellows-like air passage 48. The second hot air passage 49 extends upward, and the upper end communicates with the inside of the water tank 13 through a second blowing port 50 provided at the lower back of the water tank 13.

  One end of the connection air passage 51 is connected to the end of the heat pump air passage 42 opposite to the second blower 47. The connection air passage 51 extends upward, and the leading end in the extending direction is connected to a heat exchange part outlet 36 (see FIG. 13) provided at the rear part of the left side wall 23c of the unit case 23. Therefore, in this case, the air dehumidified in the heat exchanging section 26 is sent from the heat exchanging section outlet 36 to the evaporator 45 of the heat pump air path 42 through the connection air path 51 and cooled there. Further dehumidification. The dehumidified air is heated by the condenser 44. The heat pump air passage 42 is provided with a discharge port 52 having an opening located between the condenser 44 and the evaporator 45.

  In the above configuration, during the drying operation, the blower 8, the second blower 47, and the compressor 46 are driven, and the drum motor 19 rotates the drum 14 forward and backward at a low speed. Along with this, warm air generated in the vortex tube 1 passes through the warm air passage 28 and is supplied into the water tank 13 from the blowing port 16, and the warm air heated by the condenser 44 is also second. The hot air passage 49 is supplied to the water tank 13 through the second blowing port 50. The hot air supplied into the water tank 13 contacts the laundry in the drum 14 to heat the laundry, deprives the moisture, and dries the laundry. The air deprived of moisture is discharged from the blowout port 17 to the exhaust air passage 31 side, passes through the bellows-like air passage 33 and the filter unit 34 in this order, and flows into the heat exchange portion 26 from the heat exchange portion inlet 35. In the exchange part 26, it merges with the cold air discharged from the cold air outlet 6 of the vortex tube 1. Thereby, the air containing moisture discharged from the water tank 13 and the cold air discharged from the cold air outlet 6 of the vortex tube 1 exchange heat, and moisture contained in the air discharged from the water tank 13 is condensed and dehumidified. The

  In addition, the air dehumidified in the heat exchanging unit 26 is discharged from the heat exchanging unit outlet 36 to the connection air passage 51 side. The air discharged to the connection air passage 51 side flows downward in the connection air passage 51 and then passes through the evaporator 45 of the heat pump air passage 42. Along with this, moisture contained in the air passing through the evaporator 45 is further dehumidified. The air dehumidified by the evaporator 45 is heated again in the process of passing through the condenser 44, and then supplied to the water tank 13 through the second hot air passage 49. Such a flow of air is repeated to dry the laundry in the drum 14. In this case, in the heat pump air passage 42, a part of the air that has passed through the evaporator 45 is discharged from the discharge port 52 to the outside of the heat pump air passage 42.

  According to this embodiment described above, by using the vortex tube 1 and the heat pump 43 in combination, the drying function and the dehumidifying function can be further improved. Further, by using the vortex tube 1 and the heat pump 43 in combination, it is possible to reduce the capacity of the compressor 46, the condenser 44, and the evaporator 45 in the heat pump 43 as compared with the heat pump 43 that obtains the drying function and the dehumidifying function. As a result, it becomes possible to reduce the size of the washing machine and to reduce the size and weight of the washing / drying machine as a whole.

  In the above embodiment, the water tank 13 has two air inlets 16 and the second air inlet 50 as the air inlets for blowing warm air into the water tank 13. It is possible to share a single entrance. In this case, the hot air air passage 28 and the second hot air air passage 49 are in communication.

(Other embodiments)
In addition to the plurality of embodiments described above, the following configuration may be adopted.
In 4th Embodiment, it replaces with the heat pump 43 and is set as the structure provided with the heater as a heat source, and the water-cooling type heat exchanger as a dehumidification means. And the warm air heated by the said heater is supplied in the water tank 13 which comprises a drying chamber with the 2nd air blower 47, and the laundry in the drum 14 is dried. In addition, air containing moisture discharged from the water tank 13 or air dehumidified once by the heat exchanging unit 26 is passed through a water-cooled heat exchanger for dehumidification. The dehumidified air is heated again by the heater and supplied to the water tank 13.

  In the case of such an embodiment, the drying function and the dehumidifying function can be further improved by using the vortex tube 1 together with the heater and the water-cooled heat exchanger. In addition, the ability of a water-cooled heat exchanger can be reduced compared to a heater and a water-cooled heat exchanger that do not use a vortex tube 1, and a cooling function can be reduced. The amount of water used can be reduced and the size can be reduced, and as a result, the entire washing and drying machine can be made compact and light.

In the first to fourth embodiments, it is preferable to provide a filter that captures dust in the air at the suction port 9 b of the blower 7.
In the fourth embodiment, the outlet 47a of the second blower 47 in the heat pump air passage 42 is connected to the inlet 16 of the water tank 13, and the inlet on the evaporator 45 side in the heat pump air passage 42 is connected to the water tank 13. A circulation air passage that circulates the air in the water tank 13 is formed by the heat pump air passage 42 connected to the outlet 17. Then, the hot air outlet 5 of the vortex tube 1 is connected between the evaporator 45 and the condenser 44 or between the condenser 44 and the inlet 16 in the air passage 42 for the heat pump, and the cold air outlet 6 is connected to the water tank. 13 is connected between the outlet 17 and the evaporator 45 of the heat pump air passage 42. Even in such a configuration, the heating by the condenser 44 and the warm air from the vortex tube 1 are supplied into the water tank 13 which is a drying chamber to dry the object to be dried, and the exhaust discharged from the water tank 13 is vortexed. The dehumidification can be performed by the cold air from the tube 1 and the cooling by the evaporator 45.

  As a washing and drying machine, it can apply also to what is called a vertical axis | shaft shape from which the axial direction of a water tank and a rotating tank becomes an up-down direction. It can also be applied to those without a washing function. Furthermore, the present invention can also be applied to a dryer that dries things other than clothing as an object to be dried.

  As described above, according to the dryer of the present embodiment, the vortex tube is provided, the material to be dried in the drying chamber is dried using the warm air of the vortex tube, and the air is discharged from the drying chamber using the cold air. To dehumidify exhaust. As a result, while having a dehumidifying function, energy saving performance is high, and further downsizing can be achieved.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 1 is a vortex tube, 2 is a tube body, 3 is an air inlet, 4 is a control valve, 5 is a hot air outlet, 6 is a cold air outlet, 8 is a blower, 13 is a water tank (drying chamber), and 14 is a drum. (Rotary tank), 16 is an inlet, 17 is an outlet, 23 is a unit case, 26 is a heat exchange section, 28 is a hot air passage, 31 is an exhaust air passage, 38 is a return air passage, and 40 is an auxiliary heater. (Auxiliary heat source), 42 is a heat pump air passage, 43 is a heat pump, 44 is a condenser, 45 is an evaporator, 46 is a compressor, 47 is a second blower, 49 is a second hot air air passage, and 50 is The 2nd blowing inlet and 51 show a connection air path.

Claims (6)

An air inlet, a hot air outlet, and a cold air outlet; generating hot air and cold air from the air introduced from the air inlet; discharging the hot air from the hot air outlet; and discharging the cold air to the cold air outlet Vortex tube discharged from
A drying chamber for containing a material to be dried;
A heat exchange section,
The hot air discharged from the hot air outlet is supplied to the drying chamber to dry the object to be dried, and the exhaust gas discharged from the drying chamber and the cold air discharged from the cold air outlet are converted into the heat exchange unit. A dryer characterized in that it is dehumidified by heat exchange.   The dryer according to claim 1, wherein the air after dehumidifying in the heat exchanging section is discharged to the outside.   The dryer according to claim 1, wherein the air after dehumidification in the heat exchange section is introduced into the air inlet of the vortex tube.   The dryer according to any one of claims 1 to 3, wherein an auxiliary heat source is provided in a hot air passage connecting the hot air outlet of the vortex tube and the drying chamber. It has a heat pump that consists of a compressor, a condenser, and an evaporator connected in a cycle.
The dryer according to claim 1, wherein hot air heated by the condenser is supplied to the drying chamber, and exhaust gas discharged from the drying chamber is cooled and dehumidified in the evaporator. A heating source and a water-cooled heat exchanger;
The drying according to claim 1, wherein hot air heated by the heating source is supplied to the drying chamber, and exhaust gas discharged from the drying chamber is cooled and dehumidified in the water-cooled heat exchanger. Machine.

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