JP7453019B2 - clothes drying system - Google Patents

Description

The present invention relates to technology for a clothes drying system for drying laundry indoors.

BACKGROUND ART Techniques for drying systems for drying laundry indoors have been known. For example, as described in Patent Document 1.

Patent Document 1 discloses that a dryer main body is installed in a bathroom so that air is blown from the side wall side of the bathroom, a plurality of clothes drying rods are installed in the bathroom so as to be located in front of the air outlet of the dryer main body, There is described a clothes drying system (a clothes drying rod installation structure) in which the clothes drying rod is arranged so as to be positioned lower as the distance from the air outlet of the dryer main body increases.

In such a clothes drying system, there is a need to improve the reliability of drying laundry while saving energy.

Japanese Patent Application Publication No. 8-290000

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a clothes drying system that can improve the reliability of drying laundry while saving energy. .

The problem to be solved by the present invention is as described above, and next, means for solving this problem will be explained.

That is, in claim 1, there is provided a clothes drying system for drying laundry in a drying chamber, including a blowing operation for blowing air into the drying chamber and a heating operation for heating the drying chamber by blowing air with a temperature higher than that in the blowing operation. The air conditioner includes an air conditioner that performs heating operation, a ventilation device that ventilates the air in the drying room, and a control device that controls the air conditioner and the ventilation device, and the control device is configured to perform a heating operation when a predetermined laundry weight is reached. A target saturated water vapor amount, which is the amount of saturated water vapor during drying in the drying chamber that can dry laundry in a predetermined drying time, is calculated, and the drying room temperature corresponding to the calculated target saturated water vapor amount is set as the target drying room temperature. The air conditioner and the ventilation device can be controlled based on the calculated target drying room temperature, and if the target drying room temperature exceeds the drying room temperature at the start of drying, the ventilation device controls the drying room temperature. While ventilating the air in the drying chamber, the air conditioner performs the heating operation so that the inside of the drying chamber reaches the target drying chamber temperature, and when the target drying chamber temperature does not exceed the drying chamber temperature at the start of drying, When the air in the drying chamber is ventilated by the ventilation device, and the air blowing operation is performed by the air conditioner, and laundry of a predetermined weight is dried in a predetermined drying time by a predetermined method, the drying The drying speed is set based on the remaining time from when the absolute humidity of the room becomes lower than the absolute humidity of the adjacent room adjacent to the drying room until the end of the predetermined drying time, and The target saturated water vapor amount is calculated based on the humidity and the set drying rate .

In claim 2 , when the predetermined laundry weight is 6 kg, the predetermined drying time is 5 hours, and the wind speed around the laundry is 0.5 m/s, the drying speed is 0.8 g/s. It is something.

The present invention has the following effects.

In the first aspect, it is possible to improve the reliability of drying laundry while saving energy. Further, it is possible to easily determine the target saturated water vapor amount that allows laundry of a predetermined weight to be dried in a predetermined drying time. Further, an appropriate target saturated water vapor amount can be calculated.

In claim 2 , 6 kg of laundry can be dried in 5 hours.

FIG. 1 is a plan view showing the arrangement of a clothes drying system according to an embodiment of the present invention. FIG. 1 is a perspective view showing a clothes drying system according to an embodiment of the present invention. (a) A side sectional view showing a clothes drying system according to an embodiment of the present invention. (b) Similarly, a plan sectional view. 1 is a block diagram showing a clothes drying system according to an embodiment of the present invention. The flowchart which showed the control of the operating method of a ventilation system and a heating system. An image diagram of how to calculate drying speed. A graph showing changes in absolute humidity over time.

In the following description, the up-down direction, left-right direction, and front-back direction are respectively defined according to the arrows shown in the figures.

Below, with reference to FIGS. 1 to 4, the configuration of a clothes drying system 1 according to an embodiment of the present invention will be described. In addition, in FIG. 2, in order to show the inside of the drying chamber 10, the front wall part 11 and the left wall part 13 of the drying chamber 10 are depicted as being transparent.

The clothes drying system 1 is a system for drying laundry (washed clothes containing moisture) W indoors. The clothes drying system 1 is installed in a house, for example. The clothes drying system 1 includes a drying room 10, a temperature/humidity sensor 20, a control device 30, a ventilation device 40, and an air conditioner 50.

The drying room 10 shown in FIGS. 1 to 3 is a room for hanging laundry W to dry. The drying chamber 10 is surrounded by walls in the front-rear direction, left-right direction, and up-down direction, and is formed into a substantially rectangular shape in plan view. More specifically, the drying chamber 10 includes a front wall section 11 disposed on the front side, a rear wall section 12 disposed on the rear side, a left wall section 13 disposed on the left side, and a right wall section disposed on the right side. The wall portion 14 is formed so as to be surrounded in the front-rear direction and the left-right direction. The drying chamber 10 is surrounded in the vertical direction by a ceiling section 15 disposed across the upper ends of these walls and a floor section 16 disposed across the lower ends of these walls. Ru. In this embodiment, the height of the drying chamber 10 (the distance in the vertical direction between the upper surface of the floor section 16 and the lower surface of the ceiling section 15) is set to 2720 mm. Further, the longitudinal width of the drying chamber 10 (the distance in the longitudinal direction between the inner wall surface of the front wall section 11 and the inner wall surface of the rear wall section 12) is set to 833 mm.

Note that, hereinafter, the direction from the front (front wall 11 side) to the rear (back wall 12 side) will be referred to as the depth direction (of the drying chamber 10).

As shown in FIG. 1, the drying room 10 is provided in a sanitary room 4 adjacent to the rear side of the washroom 2 and adjacent to the left side of the kitchen 3. The drying chamber 10 is arranged at the rear end of the sanitary 4. An opening/closing door 2a is provided between the washroom 2 and the sanitary 4 so that the washroom 2 can be opened and closed with respect to the sanitary 4. Further, an opening/closing door 3a is provided between the kitchen 3 and the sanitary 4, which allows the kitchen 3 to be opened and closed with respect to the sanitary 4. The front wall 11 of the drying chamber 10 is formed with an opening/closing door 11a that can open and close the drying chamber 10 to the sanitary 4.

As shown in FIGS. 2 and 3, the floor portion 16 is provided with an air outlet 16a of an air conditioner 50, which will be described later. The air outlet 16a is formed so that the floor portion 16 opens. The air outlet 16a is formed at a position closer to the front wall 11 of the drying chamber 10 and a position closer to the rear wall 12 than the center of the floor 16 in plan view. More specifically, the air outlet 16a is formed along the front wall 11 and the rear wall 12 (extending in the left-right direction from the vicinity of the left wall 13 to the vicinity of the right wall 14).

As shown in FIGS. 2 and 3(a), a clothesline 17 for drying laundry W is provided inside the drying chamber 10. The clothesline rod 17 is formed in a cylindrical shape with its longitudinal direction oriented in the left-right direction. The clothesline rod 17 is formed to extend from the right end to the left end of the drying chamber 10.

The clothesline rods 17 are arranged in three stages from the top to the bottom of the drying chamber 10. In the following, for convenience of explanation, the upper clothesline 17 may be referred to as an upper clothesline 17a, the middle clothesline 17 may be referred to as a middle clothesline 17b, and the lower clothesline 17 may be referred to as a lower clothesline 17c.

The upper clothesline 17a is formed so that it can be raised and lowered (moved in the vertical direction). The configuration for making the upper clothesline 17a movable up and down can be any configuration. When the resident hangs the laundry W on the upper clothesline 17a or takes in (collects) the laundry W that has been dried on the upper clothesline 17a, the resident lowers the upper clothesline 17a. , the laundry W can be easily dried and collected.

The middle clothesline 17b is placed on the floor 16 via a support part 171 that supports the middle clothesline 17b from below.

The right end of the lower clothesline 17c is fixed to the right wall 14 of the drying chamber 10. The left end of the lower clothesline 17c is fixed to the left wall 13 of the drying chamber 10.

As shown in FIG. 3, the three tiers of clothesline rods 17 are arranged at approximately equal intervals in the vertical direction. The vertical interval between the clothes-drying rods 17 of each tier is set so that the laundry W hung to dry on the clothes-drying rods 17 of each tier does not come into contact with (interference with) each other. In this embodiment, in consideration of the size of the laundry W, the distance between the clothesline rods 17 in the vertical direction is set to 900 mm.

More specifically, the lower clothesline 17c is arranged such that the vertical distance from the upper surface of the floor 16 to the upper end of the lower clothesline 17c is 900 mm. The middle clothesline 17b is arranged such that the vertical distance from the upper end of the lower clothesline 17c to the upper end of the middle clothesline 17b is 900 mm. The upper clothesline 17a is arranged such that the vertical distance from the upper end of the middle clothesline 17b to the upper end of the upper clothesline 17a is 900 mm.

The clothesline rods 17 in each stage are arranged with their positions shifted from each other in the front and back direction. The distance between the clothesline rods 17 in each tier in the front-rear direction is set so that the laundry W hung on the clothesline rods 17 in each tier does not come into contact with (interference with) each other.

Specifically, the upper clothesline 17a is arranged at the frontmost side (closest to the front wall part 11) among the three clotheslines 17. The upper clothesline 17a is arranged at a distance of 250 mm rearward from the front wall 11. More specifically, the upper clothesline 17a is arranged such that the distance in the front-rear direction from the inner wall surface of the front wall portion 11 to the center of the upper clothesline 17a is 250 mm.

The middle clothesline 17b is arranged at the rearmost side (closest to the rear wall part 12) of the three clotheslines 17. The middle clothesline 17b is arranged forward from the rear wall portion 12 at an interval of 250 mm. More specifically, the middle clothesline 17b is arranged such that the distance in the front-rear direction from the inner wall surface of the rear wall portion 12 to the center of the middle clothesline 17b is 250 mm.

The lower clothesline 17c is arranged between the upper clothesline 17a and the middle clothesline 17b in the front-rear direction. The lower clothesline 17c is arranged forward from the middle clothesline 17b at an interval of 250 mm. More specifically, the lower clothesline 17c is arranged such that the distance in the front-rear direction from the center of the middle clothesline 17b to the center of the lower clothesline 17c is 250 mm. As a result, the distance in the front-rear direction between the center of the upper clothesline 17a and the center of the middle clothesline 17b is 83 mm.

Here, since the distance in the vertical direction between the clothesline poles 17 in each tier is the largest between the upper clothesline 17a and the lower clothesline 17c, the laundry W hung on the upper clothesline 17a and the lower clothesline The laundry W hung to dry on the pole 17c is difficult to come into contact with. Therefore, there is no problem even if the distance in the front-rear direction (depth direction) between the upper clothesline 17a and the lower clothesline 17c is relatively small, 83 mm. In this way, by arranging the upper clothesline 17a and the lower clothesline 17c at adjacent positions in the front-rear direction, the amount of laundry W to be dried in the drying chamber 10 can be ensured, while the The width (in the depth direction) can be reduced.

In addition, when taking in the laundry W that has been dried on the upper clothesline 17a, it is possible to easily take it in by lowering the upper clothesline 17a. Importing operations may also be performed using . Here, among the clothes-drying rods 17 of each tier, the upper-row clothes-drying rod 17a is arranged furthest to the front side in the depth direction (opening/closing door 11a side), so that the laundry W dried on the upper-row clothes-drying rod 17a can be hung on the hook. The middle clothesline 17b and the lower clothesline 17c do not get in the way when the clothes are taken in using a clothesline or the like. Therefore, the workability of importing work can be improved.

The temperature and humidity sensor 20 shown in FIGS. 2, 3(a), and 4 measures the temperature and humidity of the drying chamber 10 (air within the drying chamber 10). Below, the temperature within the drying chamber 10 may be referred to as "drying chamber temperature" and the relative humidity within the drying chamber 10 may be referred to as "drying chamber humidity." The temperature and humidity sensor 20 is provided on the right wall portion 14 of the drying chamber 10.

The control device 30 shown in FIG. 4 controls a ventilation device 40 and an air conditioner 50, which will be described later. The control device 30 operates a ventilation device 40 and an air conditioner 50, which will be described later, based on the drying room temperature, drying room humidity, etc. measured by the temperature and humidity sensor 20. Control of the operation of the ventilation device 40 and the air conditioner 50 will be described later.

The ventilation device 40 shown in FIGS. 2, 3(a), and 4 is, for example, a ventilation fan, which sucks in air from one side (suction side) and exhales air from the other side (discharge side). . The ventilation device 40 is provided above the ceiling 15 of the drying room 10. The ventilation device 40 arranged in this manner can perform a ventilation operation to ventilate the inside of the drying room 10. More specifically, the ventilation system 40 supplies air into the drying room 10 from the rooms next to the drying room 10 (the sanitary room 4 and eventually the washroom 2 and the kitchen 3) through a gap such as an undercut in the opening/closing door 11a. Air inside the chamber 10 can be discharged to the outside of the drying chamber 10. The ventilation device 40 can accelerate the drying of the laundry W by performing a ventilation operation (ventilating the inside of the drying room 10).

The air conditioner 50 shown in FIGS. 2, 3(a), and 4 adjusts the temperature of the air within the drying chamber 10. The air conditioner 50 can perform an air blowing operation that only blows air into the inside of the drying chamber 10. Furthermore, the air conditioner 50 can perform a heating operation in which the temperature of the air to be blown is increased and warm air is sent into the drying chamber 10, thereby raising the temperature of the drying chamber 10. Moreover, the air conditioner 50 can accelerate drying of the laundry W by performing heating operation or blowing operation.

Note that the drying capacity of the air conditioner 50 due to heating operation is higher than the drying capacity due to blowing operation. Moreover, the power consumption for the ventilation operation is smaller than the power consumption for the heating operation.

In the clothes drying system 1 configured in this way, the height of the drying chamber 10 (the distance in the vertical direction between the upper surface of the floor section 16 and the lower surface of the ceiling section 15) is 2720 mm, which is generally It is slightly higher than other rooms. Therefore, even if the vertical interval between the clothesline rods 17 in each stage is set to a value (900 mm) that prevents the laundry W from interfering with each other, it is possible to arrange the clothesline rods 17 in three stages. By arranging the clothes drying rods 17 in three upper and lower tiers in this way, it is possible to dry a large amount of laundry W in a limited space.

Further, in the clothes drying system 1 according to the present embodiment, the air conditioner 50 is arranged under the floor of the drying room 10 (below the floor section 16). Thereby, the warm air from the air conditioner 50 is sent upward from under the floor of the drying chamber 10 (below the floor section 16). Here, the air that has been cooled by hitting the laundry W tends to stay in the lower part of the drying chamber 10, but by sending warm air from the lower part to the upper part by the air conditioner 50 installed under the floor, the air can be stored in the lower part of the drying chamber 10. It can dissipate trapped air. Therefore, it is possible to reduce the temperature deviation depending on the location within the drying chamber 10. Thereby, the laundry W can be dried evenly (the unevenness in the degree of drying of the laundry W can be reduced).

Further, in the clothes drying system 1 according to the present embodiment, the ventilation device 40 is arranged above the ceiling part 15 of the drying room 10. Here, since the humid air moves upward, the ventilation device 40 provided above the ceiling portion 15 facilitates discharging moisture evaporated from the laundry W to the outside of the drying room 10. Therefore, dehumidification in the drying chamber 10 can be promoted, and drying of the laundry W can be promoted.

In addition, since the clothesline rods 17 in each tier are arranged at intervals in the front-rear direction (direction perpendicular to the air blowing direction from the air conditioner 50), warm air sent from the air conditioner 50 is transferred to the lower clothesline 17c. The laundry W hung to dry on the middle clothesline 17b and the upper clothesline 17a can be easily reached without being obstructed by the clothes W hung to dry. Therefore, the hot air from the air conditioner 50 can be evenly applied to the laundry W, and thus the laundry W can be dried evenly.

In the clothes drying system 1 according to the present embodiment, the hot air outlet 16a from the air conditioner 50 is located at a position closer to the front wall 11 and the rear wall 12 than the center of the floor 16 in plan view. It is formed. More specifically, the air outlet 16a is formed to extend along the front wall 11 and the rear wall 12. Here, if the hot air outlet from the air conditioner 50 is provided at the center of the floor section 16 in plan view, the speed of the warm air from the air conditioner 50 is highest near the lower clothesline 17c, The result is that the area near the upper clothesline 17a is the second fastest, and the area near the middle clothesline 17b is the slowest.

In the clothes drying system 1 according to the present embodiment, since the air outlet 16a is provided as described above, the warm air from the air conditioner 50 can easily rise along the front wall 11 and the rear wall 12 ( Coanda effect). Therefore, the wind speed near the upper clothesline 17a and the middle clothesline 17b can be increased, and unevenness in wind speed depending on the location of the drying chamber 10 can be reduced. Thereby, uneven drying of the laundry W can be further reduced.

In the drying system 1 according to the present embodiment, the drying room 10 is adjacent to the washroom 2 across the opening/closing door 2a, and is located in the sanitary 4 adjacent to the kitchen 3 across the opening/closing door 3a. It is located. Generally, the washroom 2 and the kitchen 3 are not equipped with an air conditioner, but by opening the opening/closing door 2a and the opening/closing door 3a when indoor drying (drying the laundry W in the drying room 10) is not performed, The air conditioner 50 can be used for air conditioning (heating) the washroom 2 and the kitchen 3.

Further, the drying room 10 is arranged at the rear end of the sanitary room 4, so that it is arranged so as not to overlap the flow line between the washroom 2 and the kitchen 3. In this way, the drying room 10 is arranged so as not to obstruct the line of flow between the washroom 2 and the kitchen 3 (see the arrow in FIG. 1), so housework and the like can be carried out smoothly.

Hereinafter, control of the operation of the ventilation device 40 and the air conditioner 50 will be described using FIGS. 5 to 7. The control flow shown in FIG. 5 is aimed at drying a predetermined amount (laundry weight to be described later) of laundry W in a desired drying time without wasting energy. In this embodiment, the purpose is to dry laundry W weighing 6.0 kg in 5 hours (more specifically, within 5 hours and close to 5 hours). Moreover, steps S11 to S14 shown in the control shown in FIG. 5 are executed immediately before starting drying of the laundry W, and drying of the laundry W is started by executing step S15 or S16.

In step S11, the control device 30 calculates the initial air absolute humidity Rz. Here, the "initial air absolute humidity Rz" is the absolute humidity in the drying chamber 10 before the laundry W starts drying. The initial air absolute humidity Rz is calculated based on the drying room temperature (temperature inside the drying room 10) and the drying room humidity (relative humidity inside the drying room 10) measured by the temperature/humidity sensor 20. In this embodiment, it is assumed that the initial air absolute humidity Rz is 5 g/kg. After performing the process in step S11, the control device 30 moves to step S12.

In step S12, the control device 30 calculates a target saturated water vapor amount Rzm. Here, the "target saturated water vapor amount Rzm" is a target value of the saturated water vapor amount in the drying chamber 10 during drying of the laundry W. Hereinafter, a method for calculating the target saturated water vapor amount Rzm will be specifically explained.

In order to dry a predetermined amount of laundry W (laundry weight: 6.0 kg) in a desired drying time (5 hours), it is necessary to set the drying speed to an appropriate value. The drying rate is determined by the following equation (1).
Drying speed = Moisture transfer rate x Absolute humidity difference x Laundry drying rate x Laundry weight x Laundry unit area...Formula (1)

Here, the drying rate is the amount of water that evaporates from the laundry W per unit time. The drying speed is the drying speed required to dry the laundry W weighing 6.0 kg in the desired drying time (5 hours), and is determined by experiment. In this embodiment, the drying rate is 0.8 g/s.

Moreover, the moisture transfer rate represents the ease with which water vapor in the air around the laundry W moves from the laundry W to the laundry W. The moisture transfer rate is determined by the wind speed around the laundry W (the wind speed around the laundry). The wind speed around the laundry is determined based on the speed of air blowing from the air conditioner 50 and the like. In this embodiment, the wind speed around the laundry is 0.5 m/s. In this case, the moisture transfer rate is 0.0067882 g/m ² s (g/kg).

Moreover, the absolute humidity difference indicates the difference between the saturated absolute humidity in the drying chamber 10 and the absolute humidity. Here, in this specification, "absolute humidity" refers to the mass (g/kg) of water vapor per 1 kg of dry air. Moreover, "saturated absolute humidity" shall indicate the maximum mass (g/kg) of water vapor that 1 kg of dry air can contain.

Moreover, the laundry drying rate is the ratio of the current amount of moisture contained in the laundry to the initial moisture amount (before drying starts) contained in the laundry. For example, if the current moisture content is 200g and the initial moisture content is 400g, the laundry drying rate will be 50%. The initial moisture content is automatically determined from the weight of the laundry. In this embodiment, the initial water content is determined to be 360 g for a laundry weight of 6.0 kg. In this embodiment, when the laundry drying rate of all the laundry W becomes 3% or less, it is determined that the laundry W is dry.

In addition, the laundry weight is the weight of the washed laundry W in an absolutely dry state without moisture. The weight of laundry is set with the maximum amount of laundry W that can be dried in the drying chamber 10 as an upper limit. As mentioned above, in this embodiment, the weight of the laundry is 6.0 kg.

Moreover, the laundry unit area is the surface area of the laundry W per unit weight. In this embodiment, the laundry unit area is 0.00128 m ² /g.

FIG. 7 shows the change over time in the absolute humidity in the drying room 10 when the ventilation device 40 is operated and the air conditioner 50 is operated at an arbitrary set temperature to dry the laundry W. As shown in FIG. 7, for a while after the start of drying, water evaporates from all the laundry W, so the absolute humidity in the drying chamber 10 rapidly increases. After approximately 2 hours have passed from the start of drying, most of the moisture contained in laundry W that is easy to dry (such as thin towels) has evaporated, while laundry W that is difficult to dry (such as sweatshirts and jeans) has evaporated. It will still contain moisture. While the laundry W is drying, moisture evaporated from the laundry W is discharged to the outside of the drying chamber 10 by the ventilation device 40, and is also discharged from the drying chamber 10 through gaps such as the undercut of the opening/closing door 11a (the sanitary 4). As a result, the air from the washroom 2 and kitchen 3) flows in, so that the absolute humidity in the drying room 10 becomes stable after about 3 hours from the start of drying, and the initial absolute humidity in the drying room 10 and the initial absolute humidity in the washroom 2 become stable. It is almost the same as the absolute humidity of In order to shorten the drying time, it is important to shorten the time from when the absolute humidity becomes stable (after 3 hours have passed from the start of drying) to the completion of drying.

Therefore, the "drying rate" in Equation 1 above is the drying rate during the time when the absolute humidity is stabilized (the latter 3 hours). If a drying speed of 0.8 g/s can be ensured, it will be possible to dry laundry weighing 6 kg in the target drying time of 5 hours.

In this way, by determining items other than the "absolute humidity difference" (drying speed, moisture transfer rate, laundry drying rate, laundry weight, and laundry unit area) in Equation 1, the predetermined amount (laundry weight The absolute humidity difference required to dry the laundry W (6.0 kg) in the desired drying time (5 hours) is determined. In this embodiment, the absolute humidity difference is 14 g/kg.

Here, as described above, the absolute humidity difference indicates the difference between the saturated absolute humidity and the absolute humidity in the drying chamber 10, that is, it is determined by the following formula (2).
Absolute humidity difference = saturated absolute humidity - absolute humidity...Equation (2)

In Equation 2, "saturated absolute humidity" is the saturated absolute humidity (1 kg of dry air includes (the maximum mass of water vapor that can be produced). Hereinafter, the saturated absolute humidity will be referred to as the target saturated water vapor amount Rzm.

Furthermore, in Equation 2, "absolute humidity" indicates the absolute humidity in the drying chamber 10 during drying of the laundry W. As mentioned above, the absolute humidity during drying in the drying chamber 10 (when the absolute humidity is stable) is almost the same as the absolute humidity before the laundry W starts drying, so the "absolute humidity" in equation (2) is can be replaced by the absolute humidity before the start of drying of the laundry W in the drying chamber 10, that is, the initial air absolute humidity Rz calculated in step S11.

In Equation 2, since the absolute humidity difference is 14 g/kg and the initial air absolute humidity Rz is 5 g/kg, the target saturated water vapor amount Rzm is calculated as 19 g/kg.

After performing the process in step S12, the control device 30 moves to step S13.

In step S13, the control device 30 calculates the target drying chamber temperature Tm. Here, the target drying room temperature Tm is the drying room temperature corresponding to the target saturated water vapor amount Rzm calculated in step S12 (the drying room temperature at which the saturated absolute humidity becomes the target saturated water vapor amount Rzm). The target drying chamber temperature Tm is calculated to be 24° C., which is the temperature at which the saturated absolute humidity is 19 g/kg.

After performing the process in step S13, the control device 30 moves to step S14.

In step S14, the control device 30 determines whether target drying chamber temperature Tm>initial air temperature Th (target drying chamber temperature Tm is higher than initial air temperature Th). Here, the initial air temperature Th is the drying chamber temperature before the start of drying. When the control device 30 determines that the target drying chamber temperature Tm>the initial air temperature Th (“YES” in step S14), the process proceeds to step S15. On the other hand, when the control device 30 determines that the target drying chamber temperature Tm>the initial air temperature Th ("NO" in step S14), the process proceeds to step S16.

Next, in step S15, the control device 30 performs a ventilation operation using the ventilation device 40, and sets the target drying room temperature Tm to a set temperature using the air conditioner 50 so that the inside of the drying room 10 reaches the target drying room temperature Tm. Perform heating operation. The operating time of the ventilation device 40 and the air conditioner 50 is set to a desired drying time (5 hours).

On the other hand, in step S16, the control device 30 causes the ventilation device 40 to perform a ventilation operation, and the air conditioner 50 to perform an air blowing operation. The operating time of the ventilation device 40 and the air conditioner 50 is set to a desired drying time (5 hours).

After performing the process of step S15 or step S16, the control device 30 ends the control shown in FIG. 5.

As described above, in the clothes drying system 1 according to the present embodiment, the target saturated water vapor amount Rzm that can dry the laundry W weighing 6.0 kg in 5 hours is calculated based on the equation (1) ( Step S12), a target drying chamber temperature Tm is calculated based on the calculated target saturated water vapor amount Rzm (Step S13).

Then, the operation of the ventilation device 40 and the air conditioner 50 is controlled based on the calculated target drying room temperature Tm. More specifically, if the target drying room temperature Tm does not exceed the drying room temperature at the start of drying (NO in step S14), the heating operation by the air conditioner 50 is not performed, and the ventilation operation by the ventilation device 40 and the ventilation operation by the air conditioner 50 are performed. Only the ventilation operation is performed (step S16). On the other hand, if the target drying room temperature Tm exceeds the drying room temperature at the start of drying (YES in step S14), the ventilation device 40 performs ventilation operation, and the air conditioner 50 performs heating operation with the set temperature set as the target drying room temperature Tm. (Step S15).

In this way, in the clothes drying system 1 according to the present embodiment, in order to prevent the temperature inside the drying chamber 10 from increasing more than necessary, the laundry W is dried before the desired drying time (5 hours in this embodiment) has elapsed. It is possible to prevent the ventilation device 40 and the air conditioner 50 from continuing to operate even though the drying of the air conditioner has been completed. Therefore, laundry W having a predetermined laundry weight (for example, 6 kg) can be dried in a desired drying time (for example, 5 hours) without wasting energy and with minimum energy consumption.

Further, the absolute humidity in the drying chamber 10 rapidly increases as much moisture evaporates in the early stage of drying. After that, the absolute humidity becomes stable and becomes a value close to the absolute humidity at the start of drying. Therefore, by replacing the absolute humidity during drying (stable) with the absolute humidity at the start of drying (initial air absolute humidity Rz), the target saturation that allows laundry of a given weight to be dried in a given drying time can be achieved. The amount of water vapor Rzm can be determined.

As described above, the clothes drying system 1 according to the present embodiment includes a drying room 10, a clothes drying rod 17 arranged in multiple stages inside the drying room 10, and a clothes drying rod 17 provided under the floor of the drying room 10, which is heated upward. It is equipped with an air conditioner 50 (heating device) that sends wind and heats the inside of the drying chamber 10, and a ventilation device 40 that is installed on the ceiling of the drying chamber 10 and ventilates the inside of the drying chamber 10. The clothesline rods 17 are arranged at intervals in one direction perpendicular to the direction of air blowing from the air conditioner 50.
With this configuration, as much laundry W as possible can be dried evenly in a limited space.

Further, the plurality of stages is three stages, and the uppermost clothesline (upper clothesline 17a) is located on one side wall (front wall portion 11) of the drying chamber 10 among the three clotheslines 17. The middle clothesline (middle clothesline 17b) which is located closest to the clothesline is placed closest to the other side wall (rear wall portion 12) of the drying chamber 10 among the three clothesline rods 17. It is something.
With this configuration, the width of the drying chamber 10 in the depth direction can be reduced while ensuring the amount of laundry W to be dried.

Further, the one direction is the depth direction of the drying chamber 10, and the uppermost clothesline rod (upper clothesline rod 17a) among the clothesline rods 17 in each stage is arranged closest to the front side in the depth direction. It is something that
With this configuration, when the laundry W that has been dried on the highest clothesline (the upper clothesline 17a) is taken in, the clothesline on the other tiers (the middle clothesline 17b and the lower clothesline 17c) Since it does not get in the way, it is possible to improve the workability of importing work.

The drying chamber 10 also includes a warm air outlet 16a from the air conditioner 50, which is formed so that the floor 16 (floor surface) of the drying chamber 10 is open. It is formed at a position closer to the wall of the drying chamber 10 than the center.
With this configuration, the warm air from the air conditioner 50 tends to rise along the wall, so the wind speed above the drying chamber 10 can be increased, and unevenness in wind speed can be reduced. Thereby, uneven drying of the laundry W can be further reduced.

Further, the one direction is the depth direction of the drying chamber 10, and the air outlet 16a is connected to the front wall 11 (front wall) and the rear wall 12 (back wall) in the drying chamber 10. It is formed to extend along the
With this configuration, the hot air from the air conditioner 50 can more easily rise along the front wall 11 and the rear wall 12, and the hot air that has risen can more easily hit the laundry W.

Further, the drying room 10 is arranged in a sanitary room 4 (room) adjacent to the washroom 2 and kitchen 3 with an opening/closing door 2a and an opening/closing door 3a in between.
With this configuration, the air conditioner 50 can be used to heat the washroom 2 and kitchen 3 by opening the opening/closing door 2a and the opening/closing door 3a when indoor drying is not performed.

Further, the drying room 10 is arranged so as not to obstruct the flow line between the washroom 2 and the kitchen 3.
With this configuration, housework and the like can be done smoothly.

Moreover, the clothes drying system 1 according to the present embodiment is a clothes drying system 1 that dries the laundry W in the drying chamber 10, and includes an air blowing operation that blows air into the drying room 10 and air that is higher in temperature than the air blowing operation. An air conditioner 50 that performs a heating operation that blows air to heat the inside of the drying room 10, a ventilation device 40 that ventilates the air inside the drying room 10, and a control device that controls the air conditioner 50 and the ventilation device 40. 30, the control device 30 determines a target saturated water vapor amount Rzm, which is a saturated water vapor amount during drying of the drying chamber 10 that can dry laundry W of a predetermined weight in a predetermined drying time. A drying room temperature corresponding to the calculated target saturated water vapor amount Rzm is calculated as a target drying room temperature Tm, and the air conditioner 50 and the ventilation device 40 are controlled based on the calculated target drying room temperature Tm. It is something to do.
With this configuration, it is possible to improve the reliability of drying the laundry W while saving energy.

Further, when the target drying room temperature Tm exceeds the drying room temperature at the start of drying, the control device 30 causes the ventilation device 40 to ventilate the air in the drying room 10 and the air conditioner 50 to The heating operation is performed so that the inside of the drying chamber 10 reaches the target drying chamber temperature Tm, and if the target drying chamber temperature Tm does not exceed the drying chamber temperature at the start of drying, the ventilation device 40 The air is ventilated and the air conditioner 50 performs the blowing operation.
With this configuration, it is possible to further save energy.

Further, the control device 30 calculates the target saturated water vapor amount Rzm based on the absolute humidity of the drying chamber 10 at the time of starting drying.
With this configuration, it is possible to easily determine the target saturated water vapor amount Rzm that allows laundry W of a predetermined weight to be dried in a predetermined drying time.

Further, the control device 30 sets a drying speed at which laundry W having a predetermined laundry weight can be dried in a predetermined drying time using a predetermined method, and based on the set drying speed, the target saturated water vapor amount This is to calculate Rzm.
With this configuration, an appropriate target saturated water vapor amount Rzm can be calculated.

Furthermore, when the predetermined laundry weight is 6 kg, the predetermined drying time is 5 hours, and the wind speed around the laundry is 0.5 m/s, the drying speed is set to 0.8 g/s.
With this configuration, 6 kg of laundry W can be dried in 5 hours.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above configuration, and various changes can be made within the scope of the invention described in the claims.

For example, in the present embodiment, the clothesline rod 17 is arranged with its longitudinal direction facing the left-right direction, but it may be arranged with its longitudinal direction facing the front-rear direction. In this case, the clothesline rods 17 in each stage are arranged at intervals from each other in the left-right direction.

Further, in the present embodiment, the air outlet 16a is formed to extend in the left-right direction along the front wall 11 and the rear wall 12, but the air outlet 16a extends along the left wall 13 and the right wall 14. It may be formed so as to extend in the front-rear direction.

In addition, when setting the drying speed in the above equation (1), it may be set to a value that allows drying to finish exactly in the desired drying time (5 hours), or it may be set to a value that allows drying to be completed in exactly the desired drying time (5 hours), or a value that allows drying to be completed in exactly 4 hours and 30 minutes (for example, 4 hours and 30 minutes). ) may also be set. By setting the drying speed with some margin, the laundry W can be reliably dried, and deterioration of the environment in the drying room 10 (for example, mold growth, etc.) can be suppressed.

Furthermore, in the present embodiment, when performing the heating operation by the air conditioner 50, the set temperature is set to the target drying room temperature Tm, but the set temperature is the actual temperature inside the drying room 10 during the operation of the air conditioner 50. (temperature measured by the temperature/humidity sensor 20) and the target drying chamber temperature Tm (so that the inside of the drying chamber 10 reaches the target drying chamber temperature Tm).

1 Clothes drying system 2 Washroom 2a Opening/closing door 3 Kitchen 4 Sanitary 3a Opening/closing door 10 Drying room 11 Front wall 11a Opening/closing door 12 Rear wall 12a Opening/closing door 16 Floor 16a Air outlet 17 Clothes drying pole 30 Control device 40 Ventilation device 50 Air conditioning Device

Claims (2)

A clothes drying system for drying laundry in a drying room,
an air conditioner that performs a blowing operation for blowing air into the drying chamber and a heating operation for heating the drying chamber by blowing air with a higher temperature than the blowing operation;
a ventilation device that ventilates the air in the drying room;
a control device that controls the air conditioner and the ventilation device;
Equipped with
The control device includes:
Calculate a target saturated water vapor amount that is the saturated water vapor amount during drying in the drying chamber that can dry laundry of a predetermined weight in a predetermined drying time,
Calculating the drying room temperature corresponding to the calculated target saturated water vapor amount as the target drying room temperature,
The air conditioner and the ventilation device can be controlled based on the calculated target drying room temperature,
When the target drying room temperature exceeds the drying room temperature at the start of drying, the ventilation device ventilates the air in the drying room, and the air conditioning device heats the drying room so that the temperature in the drying room reaches the target drying room temperature. drive,
When the target drying room temperature does not exceed the drying room temperature at the start of drying, the air in the drying room is ventilated by the ventilation device, and the air blowing operation is performed by the air conditioner, and
When a predetermined weight of laundry is to be dried in a predetermined drying time using a predetermined method, the predetermined drying time is determined after the absolute humidity in the drying chamber becomes lower than the absolute humidity in an adjacent room adjacent to the drying chamber. Set the drying speed based on the remaining time until the end of
calculating the target saturated water vapor amount based on the absolute humidity at the start of drying in the drying chamber and the set drying speed;
Clothes drying system. When the predetermined weight of the laundry is 6 kg, the predetermined drying time is 5 hours, and the wind speed around the laundry is 0.5 m/s, the drying speed is 0.8 g/s.
A clothes drying system according to claim 1.

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