JP2004278904A - Desiccant humidity controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a desiccant humidity controller capable of dehumidifying a space needing the dehumidification such as a closet while simultaneously humidifying a room. <P>SOLUTION: In this desiccant humidity controller, an air supply passage A for sucking the air from the outside of a room and supplying the air into the room, and an air exhausting passage B for sucking the exhaust air from the room and exhausting the air to the outside of the room are arranged in parallel, a desiccant rotor 1 rotated and driven at a specific rotating speed is mounted over the air supply passage A and the air exhaust passage B, a heater 2 for heating the supply air is mounted at a suction side of the air supply by the desiccant roller 1 of the air supply passage A, and the supply air to the room is humidified by releasing the humidity from the desiccant roller 1 by reproducing the desiccant by the air heated by the heater 2. Here, the exhaust passage B and the space needing the dehumidification 3 are communicated to supply at least a part of the air dehumidified through the desiccant rotor 1, to the space 3 through the exhaust passage B. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desiccant humidifier that performs ventilation between a room and an outdoor room, and dehumidifies or humidifies air supplied from the outdoor room.
[0002]
[Prior art]
Conventionally, when dehumidifying a room, a dehumidifier that removes moisture by dew condensation or the like is used, and when humidifying a room, a humidifier that evaporates and humidifies water is generally used.
[0003]
In recent years, a desiccant rotor that absorbs or desorbs moisture is used to discharge moisture in the exhaust path in the summer and absorb and dehumidify air in the air supply path into the room in the summer, or to absorb and dehumidify the air in the exhaust path in the winter. There is also provided a desiccant humidifier that discharges humidified air through a channel and sends humidified air into a room (for example, see Patent Document 1).
[0004]
[Patent Document 1]
JP-A-2002-66251
[0005]
[Problems to be solved by the invention]
By the way, in a house, there is a demand to humidify a living room in winter, but there is a demand to dehumidify and dry a storage part such as a closet and a bathroom in order to prevent generation of mold, dew condensation, rust and the like. Therefore, when a humidifier is used to humidify a living room or the like that requires humidification and a dehumidifier is used for a closet or the like where dehumidification is required, the humidifier and the dehumidifier are respectively operated. And the energy consumption required for this operation becomes enormous, and the equipment becomes expensive. Humidifiers include those that evaporate moisture with a heater and those that generate fine mist from water and then evaporate it with the sensible heat of air. There is a problem that water management is required.
[0006]
Further, the latter desiccant humidifier of the conventional example described above can be humidified by switching the operation state, can be dehumidified, and can also be humidified without having to manage water. However, the operation of humidification and dehumidification could not be performed at the same time, and it was not possible to dehumidify a house or the like at the same time while humidifying a living room.
[0007]
The present invention has been made in view of the above points, and an object of the present invention is to provide a desiccant humidifier capable of humidifying a room and simultaneously dehumidifying a dehumidifying space that requires dehumidification such as pushing.
[0008]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a desiccant humidifier according to the first aspect of the present invention, which includes an air supply path A for sucking air from outside and supplying the air indoors, and an exhaust path for sucking exhaust air from the room and discharging the air outside. B are arranged side by side, and a desiccant rotor 1 that is driven to rotate at a predetermined rotational speed is disposed across an air supply path A and an exhaust path B, and the intake side of the air supply path A from the desiccant rotor 1 Is provided with a heater 2 for heating the air supply, and the air supply to the room is humidified by the dehumidification from the desiccant rotor 1 by regenerating the desiccant with the heated air heated by the heater 2. In the desiccant humidity controller, the exhaust path B and the dehumidifying space 3 are communicated so that at least a part of the air dehumidified by passing through the desiccant rotor 1 through the exhaust path B is supplied to the dehumidifying space 3. Features.
[0009]
In the desiccant humidifier according to the first aspect, when humidifying the supply air to be supplied indoors in winter or the like, the desiccant humidifier ventilates the air supply path A and the exhaust path B to drive the desiccant rotor 1 and the heater 2 of the air supply path A. Then, the supply air flowing through the supply path A is heated by the heater 2 and then hits the desiccant rotor 1 and is humidified by being dehumidified from the desiccant rotor 1, and the exhaust flowing through the exhaust path B is supplied to the desiccant rotor 1. It is possible to perform an operation of absorbing moisture and exhausting the air to the outside of the room and humidifying in winter or the like. In this manner, during the humidifying operation, the air dehumidified by passing through the desiccant rotor 1 of the exhaust path B is used as a dehumidifying space. 3, the dehumidifying space 3 can be dehumidified. For this reason, the dehumidification required space 3 can be dehumidified without consuming new energy. That is, since the dehumidification-required space 3 can be dehumidified by using the low-humidity air that has been discarded until now, new energy is not required, and the efficiency of the device is greatly increased. Further, high-temperature and low-humidity air immediately after passing through the desiccant rotor 1 can be supplied to the dehumidifying space 3, which is optimal when the dehumidifying space 3 is used for drying.
[0010]
Further, in the desiccant humidity controller of claim 2 of the present invention, in claim 1, the sensible heat exchanger 4 for performing sensible heat exchange between the supply air and the exhaust gas is disposed across the supply air path A and the exhaust path B, The sensible heat exchange is performed between the air on the discharge side heated by the heat obtained by adsorbing moisture with the desiccant rotor 1 on the exhaust path B and the supply air on the supply path A before being heated by the heater 2 on the supply path A. In the exhaust path B, the air is dehumidified by passing through the desiccant rotor 1 and sensible heat exchange is performed by the sensible heat exchanger 4 so that at least a part of the cooled air is supplied to the dehumidifying space 3. The path B and the dehumidifying space 3 are required to communicate with each other.
[0011]
In the desiccant humidity controller according to the second aspect, the sensible heat exchange between the exhaust gas passing through the desiccant rotor 1 in the exhaust path B and the air supply before the heater 2 in the air supply path A is performed by the sensible heat exchanger 4 to heat the exhaust gas. Is recovered, and the heating load of the heater 2 can be reduced, and the high-temperature air can be supplied. Therefore, the supply load and the indoor heating load can be reduced, and the thermal efficiency can be improved. Also, it becomes possible to supply the medium-temperature and low-humidity air that has undergone sensible heat exchange in the sensible heat exchanger 4 to the dehumidifying space 3 that does not require much high-temperature air, for the purpose of dehumidifying the base of the dehumidifying space 3 and preventing condensation. Optimal.
[0012]
Further, the desiccant adjusting device according to claim 3 of the present invention has an air supply path A for sucking air from outside and supplying it indoors, and an exhaust path B for sucking exhaust air from indoors and discharging the air outside, A desiccant rotor 1 that is rotationally driven at a predetermined rotation speed is disposed across an air supply path A and an exhaust path B, and when the supply air supplied to the room is dehumidified, exhaust gas is supplied from the desiccant rotor 1 in the exhaust path A. A desiccant humidifier that heats exhaust gas on the intake side from the desiccant rotor 1 in the air supply path A when heating exhaust gas on the intake side and humidifying supply air to be supplied indoors. At least, at the time of dehumidification of supply air supplied indoors, at least a part of the air passing through the desiccant rotor 1 of the air supply path A is supplied to the dehumidifying space 3 required, and at the time of humidification of supply air supplied indoors, the desiccant of the exhaust path B is supplied. Rotor 1 The space 3 and the main dehumidifying air supply path A and the exhaust path B to supply the main dehumidifying space 3 at least part of the air spent characterized in that communicated.
[0013]
In the desiccant humidity controller according to the third aspect, when dehumidifying the air supply in the summer or the middle period, the air is supplied to the air supply path A and the exhaust path B to drive the desiccant rotor 1 and to be heated by the heater 2 in the exhaust path B. Then, the supply air flowing through the supply path A is dehumidified by absorbing moisture into the desiccant rotor 1, and the dehumidified supply air is supplied to the room, and the exhaust flowing through the exhaust path B is heated by the heater 2 and then desiccant. Exhaust containing moisture is released from the desiccant rotor 1 and hit by the rotor 1, and the exhaust containing moisture is exhausted outside the room. In this manner, the air dehumidified by passing through the desiccant rotor 1 in the air supply path B during the dehumidifying operation. Is supplied to the dehumidifying space 3, the dehumidifying space 3 can be dehumidified. In addition, when humidifying the air supply in winter or the like, when air is supplied to the air supply path A and the exhaust path B to drive the desiccant rotor 1 and to be heated by the heater 2 of the air supply path A, the air supply flowing through the air supply path A becomes After being heated by the heater 2 and hitting the desiccant rotor 1 to be dehumidified and humidified, the exhaust gas flowing through the exhaust path B is absorbed by the desiccant rotor 1 and exhausted to the outside. When dehumidifying space 3 is supplied, dehumidified air is supplied to dehumidifying space 3 by passing through desiccant rotor 1 in exhaust path B, so that dehumidifying space 3 can be dehumidified. By operating the desiccant humidifier as described above, it is possible to dehumidify the dehumidifying space 3 both when performing the dehumidification operation and when performing the humidification operation, and the annual operation rate of the desiccant humidifier is greatly increased. When the humidifying operation is performed as described above, the dehumidifying space 3 can be dehumidified without consuming new energy. That is, since the dehumidification-required space 3 can be dehumidified by using the low-humidity air that has been discarded until now, new energy is not required, and the efficiency of the device is greatly increased. Further, high-temperature and low-humidity air immediately after passing through the desiccant rotor 1 can be supplied to the dehumidifying space 3, which is optimal when the dehumidifying space 3 is used for drying.
[0014]
Further, in the desiccant humidity controller according to claim 4 of the present invention, in claim 3, the sensible heat exchanger 4 for performing sensible heat exchange between the supply air and the exhaust gas is disposed over the supply air path A and the exhaust path B, When the supply air in the room is dehumidified, the exhaust gas in the exhaust path B is heated before being heated by the heater 2 with the heat obtained from the air supply path A, and is obtained from the exhaust path B when the supply air in the room is humidified. The air in the air supply path A is heated by heat before being heated by the heater 2 in the air supply path A, and is dehumidified by passing through the desiccant rotor 1 in the air supply path A during dehumidification and sensible heat exchange. At least a part of the temperature-reduced air is supplied to the dehumidification-requiring space 3 and, at the time of humidification, dehumidified by passing through the desiccant rotor 1 through the exhaust path B and sensible heat exchange is performed by the sensible heat exchanger 4 to reduce the temperature. At least a part of the lowered air is supplied to the dehumidifying space 3. It is also preferred which is characterized in that communicated the gas path A and the exhaust path B and requirements dehumidifying space 3.
[0015]
In the desiccant humidifier according to the fourth aspect, when dehumidifying the supply air in summer or the like, the supply air passing through the desiccant rotor 1 in the supply path A and the exhaust gas in front of the heater 2 in the exhaust path B are sensible heat exchangers. 4, the sensible heat exchange is performed to cool the supply air, and the exhaust gas is heated. The exhaust gas heated by the sensible heat exchanger 4 is heated by the heater 2, so that the heating load on the heater 2 can be reduced. The cooling load of the air supply can be reduced, and the thermal efficiency can be improved. Further, when the supply air is humidified in winter or the like, the heat of the exhaust gas that has passed through the desiccant rotor 1 in the exhaust path B is recovered, and the heating load on the heater 2 can be reduced, and high-temperature air can be supplied. Air and indoor heating loads can be reduced, and thermal efficiency can be improved. Also, it becomes possible to supply the medium-temperature and low-humidity air that has undergone sensible heat exchange in the sensible heat exchanger 4 to the dehumidifying space 3 that does not require much high-temperature air, for the purpose of dehumidifying the base of the dehumidifying space 3 and preventing condensation. Optimal.
[0016]
The desiccant humidifier according to claim 5 of the present invention is characterized in that, in claim 1 or claim 2, the amount of air to be sent to the dehumidifying space 3 is variable so that the air is supplied to the room by humidifying the air supply path A. It is characterized in that the ratio of the amount of air to be sent and the amount of air sent to the dehumidifying space 3 can be changed. The desiccant humidifier according to claim 6 of the present invention is characterized in that in claim 3 or 4, the amount of air sent to the dehumidifying space 3 is variable so that dehumidification or humidification is performed in the air supply path A to indoors. It is characterized in that the ratio between the amount of air supplied and the amount of air sent to the dehumidifying space 3 can be changed. The desiccant humidity controller according to claim 7 of the present invention is characterized in that, in any one of claims 1 to 4, the amount of air supplied from outside to the room and the amount of air exhausted from room to outside are variable. Features.
[0017]
In the desiccant humidity controller according to any one of claims 5 to 7, the humidification air supply to the normal room, the dehumidification air supply, and the dehumidification air to the dehumidification space required according to use conditions such as the number of rooms in the room. Supply rate and ratio can be adjusted. As a result, operation with excellent energy saving can be performed according to the application.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
First, an example of the desiccant humidity controller of the embodiment shown in FIG. 1 will be described. This desiccant humidifier is dedicated to humidification. The inside of the main body box 6 is partitioned by a partition plate 7, and two ventilation paths 6a and 6b are provided in parallel. In the case of this example, the ventilation path 6a is an air supply path A for supplying air from outside to the room, and the ventilation path 6b is an exhaust path B for discharging air from the room to the outside. The disc-shaped desiccant rotor 1 and the sensible heat exchanger 4 penetrate the partition plate 7 and are disposed over the air supply path A and the exhaust path B. The sensible heat exchanger 4 and the desiccant rotor 1 And the heater 2 is disposed between them.
[0019]
The desiccant rotor 1 has an air-permeable structure such as a honeycomb structure and has a desiccant (moisture absorbing material) on its surface, and is driven to rotate at a low speed, and absorbs moisture from the moisture absorbing material or releases moisture from the moisture absorbing material. Or have been able to. In the case of this example, the sensible heat exchanger 4 is a sensible heat rotor, and is driven at a low speed to exchange sensible heat. Such a sensible heat exchanger 4 may be of a stationary type if it crosses and exchanges heat in the heat exchanger. The heater 2 is formed of, for example, a hot water coil, and is supplied with hot water heated by heat obtained from natural energy such as exhaust heat of the combustion device or solar heat. In this embodiment, the heater 2 is heated with hot water, but may be heated with electricity, steam, or the like. A blower means 8 such as a fan is disposed downstream of the desiccant rotor 1 in the air supply path A from the desiccant rotor 1, and a blower like a fan is disposed downstream of the sensible heat exchanger 4 in the exhaust path B on the downstream side of the air supply. Means 9 are arranged. The air blowing means 8 and 9 can adjust the air volume by changing the rotation speed.
[0020]
The room supplied from the air supply path A is a portion where there is a normal room including a living room. By the way, in the dwelling unit, there is a dehumidifying space 3 that requires dehumidification regardless of the season, such as a closet, a storage room, a bathroom, a drying room, and the like. A portion between the desiccant rotor 1 and the sensible heat exchanger 4 is communicated with the dehumidifying space 3 via a communication path 10, and the communication path 10 is provided with a damper 11 that opens and closes and adjusts an opening degree. The air blower 12 such as a fan is provided.
[0021]
When the desiccant humidifier configured as described above performs a humidifying operation for humidifying supply air supplied to a room in winter or the like, the blowing means 8 and 9 are driven and the desiccant rotor 1 is driven (the sensible heat exchanger). When the sensible heat rotor 4 is used, the sensible heat rotor is also driven), and the heater 2 heats the heat. Then, in the exhaust path B, the indoor exhaust is sucked from the exhaust inlet side c, passes through the desiccant rotor 1, is absorbed by the desiccant rotor 1, moisture is collected from the exhaust by the desiccant rotor 1, and passes through the desiccant rotor 1. The exhaust gas which became high temperature and low humidity (the humidity became lower than the outside air) passed through the sensible heat exchanger 4 to exchange sensible heat, and the low-humidity exhaust gas which became medium temperature was discharged outside from the exhaust outlet side d. You. On the other hand, in the air supply path A, outdoor air outside is taken in from the air supply inlet side a, the air supply is heated by the heat obtained from the exhaust side by the sensible heat exchanger 4, and this air supply passes through the heater 2. Is heated further, and the heated air supply passes through the desiccant rotor 1 to be dehumidified and humidified from the desiccant rotor 1, and the humidified air having a high temperature and a high humidity is supplied into the room from the air supply outlet side b. Is done.
[0022]
In this manner, the air supplied to the room is humidified, but the damper 11 is opened and the blowing means 12 is driven to drive a part of the high-temperature and low-humidity exhaust air dehumidified by the desiccant rotor 1 through the communication path 10 to obtain the dehumidifying space 3. Send to In this way, it is possible to humidify the room such as a normal living room or the like in the winter season or the like, and to perform sub-dehumidification of the dehumidifying space 3 such as a storage room, a bathroom, and a drying room. At this time, when the desiccant humidifier is operated for humidification, the air dehumidified by the desiccant rotor 1 is supplied to the dehumidifying space 3 for dehumidification, so that the dehumidifying space 3 is dehumidified without consuming new energy. be able to. In other words, the efficiency of the entire device is greatly increased by using the low-humidity air that has been exhausted.
[0023]
FIG. 2 is a graph showing the temperature and humidity of each part of the air supply path A and the exhaust path B when the desiccant humidifier is operated in a humidifying mode. FIG. 2C shows the position of each part of the desiccant humidifier. (A) shows changes in temperature (solid line) and humidity (broken line) in the air supply path A, and (b) shows changes in temperature (solid line) and humidity (broken line) in the exhaust path B. When supplying dehumidified air to the dehumidifying space 3, air passing through the desiccant rotor 1 is supplied. High-temperature, low-humidity air in a region indicated by a symbol α in FIG. Is done. Therefore, it is optimal when the dehumidifying space 3 is required to be dried in a bathroom or a drying room.
[0024]
In addition, by adjusting the damper 11, the ratio of the amount of air going to the dehumidifying space 3 required and the amount of air discharged from the exhaust outlet side d of the exhaust path B can be adjusted. Further, by controlling the number of rotations of the blowing means 8 and 9, the amount of air flowing through the air supply path A and the exhaust path B can be varied. As described above, the supply of dehumidified air to the dehumidifying space 3 can be changed, and the ratio of the amount of air supplied to the room by humidifying the room and the amount of air supplied to the dehumidifying space 3 can be changed. For this reason, it is possible to adjust the supply of air to the normal room or the supply amount and ratio of dehumidified air to the dehumidifying space 3 in accordance with the use conditions such as the number of rooms used. This enables operation with excellent energy savings.
[0025]
Next, the desiccant humidity controller shown in FIG. 3 will be described. This example is basically the same as the example shown in FIG. 1 and only different points will be mainly described. In the example shown in FIG. 1, the communication path 10 communicating with the dehumidifying space 3 is branched from between the desiccant rotor 1 and the sensible heat exchanger 4 in the exhaust path B, but in the present example, the sensible heat exchange in the exhaust path B is performed. The communication path 10 is branched from a portion downstream of the vessel 4 so that the communication path 10 communicates with the dehumidifying space 3. A damper 11 and a blowing means 12 are provided in the communication path 10.
[0026]
In this desiccant humidifier, the humidifying operation is performed similarly to the desiccant humidifier shown in FIG. 1, but the low-humidity air that has passed through the sensible heat exchanger 4 is sent to the dehumidifying space 3 via the communication path 10. Then, the required dehumidifying space 3 is sub-humidified. When the desiccant humidifier of this example is operated, the temperature and humidity of each part of the air supply path A and the exhaust path B are as shown in FIG. 2B. In this example, the sensible heat exchange of the exhaust path B is performed. After passing through the vessel 4, medium-temperature, low-humidity air in the region indicated by reference numeral β in FIG. Therefore, air with a medium temperature and a low humidity can be supplied to the dehumidifying space 3 which is required, which is most suitable for the purpose of dehumidifying the base and preventing dew condensation, which does not require a high temperature air.
[0027]
Next, the desiccant humidity controller shown in FIG. 4 will be described. This desiccant humidifier is used for both dehumidification and humidification. The inside of the main body box 6 is partitioned by a partition plate 7, and two ventilation paths 6a and 6b are provided in parallel. The disc-shaped desiccant rotor 1 and the sensible heat exchanger 4 penetrate the partition plate 7 and are disposed across the ventilation path 6a and the ventilation path 6b. The ventilation path 6a connects the sensible heat exchanger 4 and the desiccant rotor 1 to each other. The heater 2 is arranged between them. A blower means 8 such as a fan is disposed downstream of the desiccant rotor 1 in the ventilation path 6a and a blower means 9 such as a fan downstream of the sensible heat exchanger 4 in the ventilation path 6b. Is arranged. The air blowing means 8 and 9 can adjust the air volume by changing the rotation speed. Also in the case of this example, the sensible heat exchanger 4 is a sensible heat rotor, and is driven at a low speed to exchange sensible heat. Such a sensible heat exchanger 4 may be of a stationary type if it crosses and exchanges heat in the heat exchanger. The heater 2 is also heated with hot water in this example, but may be heated with electricity, steam, or the like.
[0028]
When the sensible heat exchanger 4 side of the ventilation paths 6a and 6b is set to one end and the desiccant rotor 1 side is set to the other end, one of the pair of path switching means 14 and 15 is connected to one end of the ventilation path 6a and The other path switching means 15 communicates with the other end of the ventilation path 6b and the other end of the ventilation path 6a and one end of the ventilation path 6b. When the dehumidifying operation is performed and the humidifying operation is performed, the path switching unit 15 is switched. When performing the dehumidifying operation, the ventilation path 6a becomes the exhaust path B and the ventilation path 6b becomes the air supply path A. When the humidifying operation is performed, the ventilation path 6a becomes the air supply path A and the ventilation path 6b becomes the exhaust path B.
[0029]
A communication path 10 is branched from the desiccant rotor 1 of the ventilation path 6b and the sensible heat exchanger 4, and the communication path 10 is connected to the dehumidifying space 3 so that the communication path 10 includes a damper 11 and a blowing means. 12 are arranged.
[0030]
When the desiccant humidifier configured as described above performs a dehumidifying operation for dehumidifying air supplied to a room in summer, an intermediate period, or the like, the ventilation path 6a becomes the exhaust path B and the ventilation path 6b becomes the air supply path A. The path switching means 14 and 15 are switched so that the air blowing means 8 and 9 are driven and the desiccant rotor 1 is driven (when the sensible heat exchanger 4 is a sensible heat rotor, the sensible heat rotor is also driven). Heat with. Then, the air flows as shown by the solid line in FIG. 4, and operates as follows. In the exhaust path B, the indoor exhaust is sucked from the exhaust inlet side c, passes through the sensible heat exchanger 4 and exchanges heat with the supply air to heat the exhaust, and the exhaust passes through the heater 2 to be further heated. Then, the heated exhaust gas passes through the desiccant rotor 1 to be dehumidified from the desiccant rotor 1, and the high-temperature and high-humidity exhaust gas is exhausted from the exhaust outlet side d to the outside. In the air supply path A, outdoor air outside is taken in from the air supply inlet side a, passes through the desiccant rotor 1, absorbs moisture into the desiccant rotor 1 and dehumidifies the air supply, and the dehumidified air supplies the sensible heat exchanger 4. By passing through, sensible heat exchange is performed, and exhaust gas and air supply exchange heat, the temperature of the air supply is lowered, and dehumidified air is supplied into the room from the air supply outlet side b. In this way, the air supplied to the room is dehumidified, and the damper 11 is opened and the air blowing means 12 is driven to send a part of the air dehumidified by the desiccant rotor 1 to the dehumidifying space 3 through the communication path 10. In this way, it is possible to perform dehumidification in the required dehumidifying space 3 such as a closet, a storage room, a bathroom, a drying room, etc. while dehumidifying a normal room such as a living room in the summer and the middle period. In this manner, indoor dehumidification (main body dehumidification) and dehumidification of the dehumidification-required space 3 (sub dehumidification) can be performed in the summer, the middle period, and the like.
[0031]
In the case of performing a humidifying operation for humidifying supply air supplied to a room in winter or the like, the path switching means 14 and 15 are switched so that the ventilation path 6a becomes the air supply path A and the ventilation path 6b becomes the air supply path B. Then, the blowing means 8 and 9 are driven and the desiccant rotor 1 is driven (when the sensible heat exchanger 4 is a sensible heat rotor, the sensible heat rotor is also driven), and the heater 2 heats. Then, the air flows as shown by the broken line in FIG. 4 and operates as follows. In the exhaust path B, the indoor exhaust is sucked from the exhaust inlet side c, passes through the desiccant rotor 1, is absorbed by the desiccant rotor 1, moisture is collected from the exhaust by the desiccant rotor 1, and passes through the desiccant rotor 1 to reach high temperature. The exhaust gas having a low humidity (having a lower humidity than the outside air) passes through the sensible heat exchanger 4 to exchange sensible heat, and the low-humidity exhaust gas having a medium temperature is discharged from the exhaust outlet side d to the outside. On the other hand, in the air supply path A, outdoor air outside is taken in from the air supply inlet side a, the air supply is heated by the heat obtained from the exhaust side by the sensible heat exchanger 4, and this air supply passes through the heater 2. Is heated further, and the heated air supply passes through the desiccant rotor 1 to be dehumidified and humidified from the desiccant rotor 1, and the humidified air having a high temperature and a high humidity is supplied into the room from the air supply outlet side b. Is done. In this manner, the air supplied into the room is humidified, but the damper 11 is opened and the blowing means 12 is driven to send a part of the exhaust air dehumidified by the desiccant rotor 1 to the dehumidifying space 3 through the communication path 10. Thus, in a winter or the like, a room such as a normal living room can be pushed in while humidifying, and the sub-dehumidifying of the dehumidifying space 3 such as a storage room, a bathroom, and a drying room can be performed. In this manner, indoor humidification (main body humidification) and dehumidification of the dehumidifying space 3 (sub dehumidification) can be performed in winter or the like.
[0032]
In addition, the damper 1 is switched so that the air dehumidified by the desiccant rotor 1 does not go to the air supply outlet side d in the state of the dehumidifying operation as described above, but goes to the dehumidifying space 3. If the adjustment is made small according to the condition, only the dehumidification of the dehumidification required space 3 (sub dehumidification) can be performed in a state where the indoor dehumidification is stopped (main body is stopped).
[0033]
By operating the desiccant humidifier as described above, it is possible to dehumidify the dehumidifying space 3 both when performing the dehumidification operation and when performing the humidification operation, and the annual operation rate of the desiccant humidifier is greatly increased. When the humidifying operation is performed as described above, the dehumidifying space 3 can be dehumidified without consuming new energy. That is, since the dehumidification-required space 3 can be dehumidified by using the low-humidity air that has been discarded until now, new energy is not required, and the efficiency of the device is greatly increased. In the humidifying operation, high-temperature and low-humidity air immediately after passing through the desiccant rotor 1 can be supplied to the dehumidifying space 3, which is optimal when the dehumidifying space 3 is used for drying.
[0034]
Further, the desiccant humidity controller can easily realize the operation of main body humidification + sub-humidification in winter or the like, main body dehumidification + sub-humidification in summer, middle period, etc., and operation of main body halting + sub-humidification during the year. Accordingly, even in the absence of winter or the like, it is possible to perform only dehumidification of the annual important location moist space 3, and since it is possible to dehumidify only the annual dehumidifying space 3, unnecessary energy is not required.
[0035]
Further, by adjusting the damper 11, the amount of air going to the dehumidifying space 3 and the amount of air discharged from the exhaust outlet d of the exhaust path B or the amount of air supplied from the air supply outlet b of the air supply path A are adjusted. Can be adjusted. Further, by controlling the number of rotations of the blowing means 8 and 9, the amount of air flowing through the air supply path A and the exhaust path B can be varied. By the above, the supply of dehumidified air to the dehumidifying space 3 can be changed, and the ratio of the amount of air supplied to the room by humidifying or dehumidifying and the amount of air supplied to the dehumidifying space 3 can be changed. For this reason, it is possible to adjust the supply of air into the room and the supply amount and ratio of dehumidified air to the dehumidification-required space 3 according to use conditions such as the number of rooms used. This enables operation with excellent energy savings.
[0036]
Next, the desiccant humidity controller shown in FIG. 5 will be described. This example is basically the same as the example shown in FIG. 4, and only different points will be mainly described. In the example shown in FIG. 4, the communication path 10 communicating with the dehumidifying space 3 is branched from between the desiccant rotor 1 of the ventilation path 6b and the sensible heat exchanger 4, but in this example, the sensible heat exchange of the ventilation path 6b is performed. The communication path 10 is branched from a portion downstream of the vessel 4 so that the communication path 10 communicates with the dehumidifying space 3. A damper 11 and a blowing means 12 are provided in the communication path 10.
[0037]
In this desiccant humidifier, the dehumidifying operation and the humidifying operation are performed in the same manner as the desiccant humidifier shown in FIG. 4, but the low-humidity air that has passed through the sensible heat exchanger 4 passes through the communication path 10 so that the dehumidifying space is required. The sub-dehumidifying space 3 is sent to the sub-dehumidifying space 3. In the case of this example, when the humidifying operation is performed, the medium-temperature, low-humidity air in the region indicated by the reference numeral β in FIG. 2 after passing through the sensible heat exchanger 4 is supplied to the dehumidifying space 3. Therefore, air with a medium temperature and a low humidity can be supplied to the dehumidifying space 3 which is required, which is most suitable for the purpose of dehumidifying the base and preventing dew condensation, which does not require a high temperature air.
[0038]
Next, the desiccant humidity controller shown in FIG. 6 will be described. This desiccant humidifier is used for both dehumidification and humidification. The inside of the main body box 6 is partitioned by a partition plate 7, and two ventilation paths 6a and 6b are provided in parallel. In the case of this example, the ventilation path 6a is an air supply path A for supplying air from outside to the room, and the ventilation path 6b is an exhaust path B for discharging air from the room to the outside. A disc-shaped desiccant rotor 1 and a sensible heat exchanger 4 penetrate the partition plate 7 and are arranged over an air supply path A and an exhaust path B. The sensible heat exchanger 4 includes a sensible heat exchanger 4a for humidification and a sensible heat exchanger 4b for dehumidification. The sensible heat exchanger 4a for humidification and the sensible heat exchange for dehumidification sandwich the desiccant rotor 1. And a vessel 4b. The heater 2 also includes a humidifying heater 2a and a dehumidifying heater 2b. The humidifying heater 2a is disposed between the humidifying sensible heat exchanger 4a and the desiccant rotor 1 of the air supply path A. A dehumidifying heater 2b is disposed between the dehumidifying sensible heat exchanger 4b and the desiccant rotor 1 in the exhaust path B. The sensible heat exchanger 4a for humidification and the sensible heat exchanger 4b for dehumidification are sensible heat rotors in this embodiment. In this embodiment, the heater 2 is heated with hot water, but may be heated with electricity, steam, or the like.
[0039]
A blower means 8 such as a fan is disposed downstream of the desiccant rotor 1 in the air supply path A from the desiccant rotor 1, and a blower like a fan is disposed downstream of the sensible heat exchanger 4 in the exhaust path B on the downstream side of the air supply. Means 9 are arranged. The air blowing means 8 and 9 can adjust the air volume by changing the rotation speed.
[0040]
In the case of this example, there are a humidification communication path 10a and a dehumidification communication path 10b as the communication paths 10, and a humidification communication path is provided between the desiccant rotor 1 of the exhaust path B and the humidification sensible heat exchanger 4a. The path 10a is branched, and the dehumidifying communication path 10b is branched from the desiccant rotor 1 of the air supply path A and the dehumidifying sensible heat exchanger 4b. The communication path 10b is communicated with the dehumidifying space 3, and the damper 11 and the blowing means 12 are disposed in the communication path 10a for humidification and the communication path 10b for dehumidification, respectively.
[0041]
When the desiccant humidifier configured as described above performs a dehumidifying operation for dehumidifying air supplied to a room in summer, an intermediate period, or the like, the air blowing means 8 and 9 are driven and the desiccant rotor 1 is driven to perform dehumidifying operation. The sensible heat exchanger 4b is operated (the sensible heat rotor is rotationally driven) and the dehumidifying heater 2b is operated. Then, in the exhaust path B, the indoor exhaust is sucked from the exhaust inlet side c and passes through the dehumidifying sensible heat exchanger 4b to exchange heat with the supply air to heat the exhaust. The heated exhaust gas is further heated by passing through the heater 2b, and the heated exhaust gas is dehumidified from the desiccant rotor 1 by passing through the desiccant rotor 1, and the high-temperature and high-humidity exhaust gas is exhausted from the exhaust outlet side d to the outside. In the air supply path A, outdoor air outside is taken in from the air supply inlet side a, passes through the desiccant rotor 1, absorbs moisture into the desiccant rotor 1 and dehumidifies the air supply, and the dehumidified air supply exchanges sensible heat for dehumidification. By passing through the vessel 4b, the exhaust gas and the air supply exchange sensible heat to lower the temperature of the air supply, and the dehumidified air is supplied into the room from the air supply outlet side b. In this manner, the air supplied to the room is dehumidified, but the damper 11 is opened and the blowing means 12 is driven to drive a part of the dehumidified air supplied by the desiccant rotor 1 through the dehumidifying communication path 10b. Send to In this way, it is possible to perform dehumidification in the required dehumidifying space 3 such as a closet, a storage room, a bathroom, a drying room, etc. while dehumidifying a normal room such as a living room in the summer and the middle period. In this manner, indoor dehumidification (main body dehumidification) and dehumidification of the dehumidification-required space 3 (sub dehumidification) can be performed in the summer, the middle period, and the like.
[0042]
In addition, in the case of humidifying operation for humidifying supply air to be supplied to a room in winter or the like, the blowing means 8 and 9 are driven, the desiccant rotor 1 is driven, and the humidifying sensible heat exchanger 4a is operated (the sensible heat rotor 4a). And the humidifying heater 2a is operated. Then, in the exhaust path B, the indoor exhaust is sucked from the exhaust inlet side c, passes through the desiccant rotor 1, is absorbed by the desiccant rotor 1, moisture is recovered from the exhaust by the desiccant rotor 1, and passes through the desiccant rotor 1 to reach a high temperature. And the low-humidity exhaust gas, which has become low in humidity (has a lower humidity than the outside air), passes through the humidifying sensible heat exchanger 4a and exchanges sensible heat, and the low-humidity exhaust gas having a medium temperature is discharged from the exhaust outlet side d to the outside. Is discharged. On the other hand, in the air supply path A, outdoor air outside is taken in from the air supply inlet side a, and the air supply is heated by heat obtained from the exhaust side by the humidifying sensible heat exchanger 4a. Is further heated by passing through the heater 2a, and the heated supply air is dehumidified and humidified from the desiccant rotor 1 by passing through the desiccant rotor 1, and the humidified supply air having a high temperature and high humidity is supplied to the air supply outlet. It is supplied from the side b into the room. In this way, the air supplied to the room is humidified, but the damper 11 is opened and the blowing means 12 is driven to drive a part of the exhaust air dehumidified by the desiccant rotor 1 to the dehumidifying space 3 via the humidifying communication path 10a. send. Thus, in a winter or the like, a room such as a normal living room can be pushed in while humidifying, and the sub-dehumidifying of the dehumidifying space 3 such as a storage room, a bathroom, and a drying room can be performed. In this manner, indoor humidification (main body humidification) and dehumidification of the dehumidifying space 3 (sub dehumidification) can be performed in winter or the like.
[0043]
In addition, the damper 1 is switched so that the air dehumidified by the desiccant rotor 1 does not go to the air supply outlet side d in the state of the dehumidifying operation as described above, but goes to the dehumidifying space 3. If the adjustment is made small according to the condition, only the dehumidification of the dehumidification required space 3 (sub dehumidification) can be performed in a state where the indoor dehumidification is stopped (main body is stopped).
[0044]
By operating the desiccant humidifier as described above, it is possible to dehumidify the dehumidifying space 3 both when performing the dehumidification operation and when performing the humidification operation, and the annual operation rate of the desiccant humidifier is greatly increased. When the humidifying operation is performed as described above, the dehumidifying space 3 can be dehumidified without consuming new energy. That is, since the dehumidification-required space 3 can be dehumidified by using the low-humidity air that has been discarded until now, new energy is not required, and the efficiency of the device is greatly increased. In addition, during the humidifying operation, high-temperature and low-humidity air immediately after passing through the desiccant rotor 1 can be supplied to the dehumidifying space 3, which is optimal when the dehumidifying space 3 is used for drying.
[0045]
Also in the desiccant dehumidifier shown in FIG. 6, air after passing through the sensible heat exchanger 4 may be taken out and supplied to the dehumidifying space 3 as in the example shown in FIG. Although the sensible heat exchanger of the example shown in FIG. 6 may be of a stationary type, it cannot be selectively driven at the time of humidification or dehumidification, which is not preferable because of heat loss. However, a sensible heat rotor is preferable because it can be selectively driven during humidification and dehumidification and has no heat loss.
[0046]
In the desiccant humidity controller, a hot water coil is used as the heater 2, and hot water obtained by using natural energy such as exhaust heat of the combustion device or solar heat can be supplied to the hot water coil. Running costs are not required for heating, and energy can be saved.
[0047]
【The invention's effect】
According to the first aspect of the present invention, an air supply path for sucking air from the outside and supplying it to the room and an exhaust path for sucking exhaust gas from the room and discharging the air to the outside are arranged side by side, and at a predetermined rotational speed. A rotatably driven desiccant rotor is disposed across the air supply path and the exhaust path, and a heater for heating the air supply from the desiccant rotor of the air supply path to the air supply side is provided. In a desiccant humidifier configured to humidify the supply air to the room by dehumidification from the desiccant rotor by regenerating the desiccant rotor with heated air, dehumidified air passing through the desiccant rotor in the exhaust path The exhaust path and the dehumidifying space are connected so that at least a part of the air is supplied to the dehumidifying space.When humidifying the air supply in winter or the like, the air is ventilated to the air supply path and the exhaust path to drive the desiccant rotor. Do When both are heated by the heater in the air supply path, the air supply flowing in the air supply path is heated by the heater, then hits the desiccant rotor and is humidified by being dehumidified from the desiccant rotor, and the exhaust gas flowing through the exhaust path is sent to the desiccant rotor. It is possible to perform humidifying operation in winter, etc. by absorbing moisture and exhausting it outside the room.However, during humidifying operation, dehumidified air is supplied to the dehumidifying space by passing through the desiccant rotor in the exhaust path. By doing so, the dehumidification-required space can be dehumidified, and the dehumidification-required space can be dehumidified without consuming new energy. In other words, since the dehumidification-required space can be dehumidified by using the low-humidity air that has been discarded until now, no new energy is required, and the efficiency of the device is greatly increased. In addition, it is possible to supply high-temperature, low-humidity air immediately after passing through the desiccant rotor to the dehumidification-required space, which is optimal when the dehumidification-required space is used for drying purposes.
According to a second aspect of the present invention, in the first aspect, a sensible heat exchanger for performing sensible heat exchange between the air supply and the exhaust is disposed across the air supply path and the exhaust path, and a desiccant rotor in the exhaust path is used. Sensible heat exchange was performed between the air on the discharge side heated by the heat obtained by absorbing the moisture and the air supply in the air supply path before being heated by the heater, so that the exhaust air passed through the desiccant rotor in the exhaust path. The sensible heat exchanger exchanges sensible heat with the air before the heater in the air supply path to recover the heat of the exhaust gas, reducing the heating load on the heater and supplying high-temperature air. Air and the heating load in the room can be reduced, and the thermal efficiency can be improved.Moreover, at least the temperature of the air that has been dehumidified by passing through the desiccant rotor in the exhaust path and cooled by the sensible heat exchange in the sensible heat exchanger is reduced. We will supply a part to the dehumidifying space Since the exhaust path and the dehumidifying space are connected to each other, it is possible to supply medium-temperature, low-humidity air that has undergone sensible heat exchange with the sensible heat exchanger to the dehumidifying space, which does not require much high-temperature air. It is optimal for the purpose of dehumidifying the base and preventing condensation.
[0048]
According to a third aspect of the present invention, an air supply path for sucking air from the outside and supplying it to the room and an exhaust path for sucking exhaust air from the room and discharging the air to the outside are provided side by side, and include a moisture absorbing material. In addition, a desiccant rotor that is driven to rotate at a predetermined rotation speed is disposed across an air supply path and an exhaust path, and when dehumidifying supply air supplied to a room, the exhaust gas is exhausted from the desiccant rotor in the exhaust path on the intake side of the exhaust gas. When heating the air supply and humidifying the supply air to be supplied indoors, the supply air is supplied indoors in a desiccant humidifier in which the air supply is heated on the intake side of the air supply from the desiccant rotor in the air supply path. At the time of dehumidification of air supply, at least a part of the air that has passed through the desiccant rotor of the air supply path is supplied to the dehumidifying space required, and when the supply air is humidified, the amount of air that has passed through the desiccant rotor of the exhaust path is small. The air supply path and exhaust path are connected to the dehumidifying space so that part of the air is supplied to the dehumidifying space, so when dehumidifying the air supply in the summer or the middle season, ventilate the air supply and exhaust paths. When the desiccant rotor is driven and heated by the heater in the exhaust path, the supply air flowing through the supply path is dehumidified by absorbing moisture in the desiccant rotor, and the dehumidified supply air is supplied to the room, and the exhaust path is removed. The flowing exhaust gas is heated by the heater and then hits the desiccant rotor to be dehumidified from the desiccant rotor, and the exhaust gas containing moisture is exhausted outside the room. When the dehumidifying operation is performed, the exhaust gas passes through the desiccant rotor in the air supply path. By supplying the dehumidified air to the dehumidifying space, the dehumidifying space can be dehumidified. In the case of humidifying the air supply in winter, etc., the air supply path and the exhaust gas When the desiccant rotor is driven and heated by the heater in the air supply path, the supply air flowing through the air supply path is heated by the heater and then humidified by hitting the desiccant rotor and dehumidifying. The flowing exhaust gas is absorbed by the desiccant rotor and is exhausted to the outside.In such a humidifying operation, dehumidified air is supplied to the dehumidifying space by passing dehumidified air through the desiccant rotor in the exhaust path. The space can be dehumidified, so that the dehumidifying space that needs to be dehumidified can be dehumidified both when the dehumidifying operation is performed and when the humidifying operation is performed, and the annual operation rate of the desiccant humidifier is greatly increased. In addition, when the humidifying operation is performed as described above, the dehumidifying space can be dehumidified without consuming new energy. In other words, since the dehumidification-required space can be dehumidified by using the low-humidity air that has been discarded until now, no new energy is required, and the efficiency of the device is greatly increased. Further, high-temperature and low-humidity air immediately after passing through the desiccant rotor can be supplied to the dehumidifying space, which is optimal when the dehumidifying space is used for the purpose of drying.
[0049]
According to a fourth aspect of the present invention, in the third aspect, a sensible heat exchanger for performing sensible heat exchange between the supply air and the exhaust gas is disposed across the supply air passage and the exhaust air passage to supply the air to the room. During dehumidification, the exhaust gas in the exhaust path is heated before heating by the heater with the heat obtained from the air supply path, and when the supply air to be supplied to the room is humidified, the air supply path is supplied with the heat obtained from the exhaust path. Since the air is heated before being heated by the heater in the air path, when dehumidifying the air supply in the summer or in the middle, etc., the air supply through the desiccant rotor in the air supply path and the exhaust before the heater in the exhaust path Performs sensible heat exchange in the sensible heat exchanger to cool the supply air and heat the exhaust, and the exhaust heated by the sensible heat exchanger is heated by the heater, thereby reducing the heating load of the heater. At the same time, it can reduce the cooling load of the air supply and improve the thermal efficiency. When humidifying the air supply in winter, etc., the heat of the exhaust gas that has passed through the desiccant rotor in the exhaust path is recovered, and the heating load on the heater can be reduced, and high-temperature air can be supplied. Heating load can be reduced and thermal efficiency can be improved.In addition, at the time of dehumidification, at least a part of the air whose temperature has been reduced by passing through the desiccant rotor of the air supply path and having undergone sensible heat exchange and reduced temperature needs to be dehumidified. And at the time of humidification, the air passes through the desiccant rotor in the exhaust path and is dehumidified. At the same time, sensible heat exchange is performed by the sensible heat exchanger to supply at least a part of the cooled air to the dehumidifying space. Since the air path and exhaust path are connected to the dehumidifying space, medium-temperature, low-humidity air that has undergone sensible heat exchange with the sensible heat exchanger can be supplied to the dehumidifying space, requiring much higher-temperature air. Was not required dehumidification-based dehumidification and condensation prevention of space is optimal for purposes such as.
[0050]
According to a fifth aspect of the present invention, in the first or second aspect, the amount of air to be supplied to the room to be humidified and supplied to the room by humidifying in the air supply path so that the amount of air sent to the dehumidifying space required can be varied. The ratio of the amount of air sent to the dehumidifying space can be changed. According to the invention of claim 6 of the present invention, the amount of air sent to the dehumidifying space can be changed in claim 3 or 4. The ratio of the amount of air supplied to the room to be dehumidified or humidified in the air supply path and the amount of air sent to the dehumidification-required space can be changed. The air conditioner according to any one of claims 1 to 4, wherein the amount of air supplied from the outside to the room and the amount of air exhausted from the room to the outside are variable. Humidification air supply and dehumidification air supply to the normal room according to Those capable of adjusting the supply amount and ratio of dehumidified air to the beauty essential dehumidifying space. Therefore, an operation with excellent energy saving can be performed depending on the application.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing a structure of a desiccant humidity controller according to an example of an embodiment of the present invention.
FIG. 2 is an explanatory diagram illustrating a temperature change in an air supply path and an exhaust path according to the first embodiment.
FIG. 3 is a conceptual diagram showing a structure of a desiccant humidity controller of another example of the embodiment.
FIG. 4 is a conceptual diagram showing a structure of a desiccant humidity controller of another example of the embodiment.
FIG. 5 is a conceptual diagram showing a structure of a desiccant humidity controller of another example of the embodiment.
FIG. 6 is a conceptual diagram showing a structure of a desiccant humidity controller of another example of the embodiment.
[Explanation of symbols]
A air supply route
B exhaust path
1 Desiccant rotor
2 heater
3 Dehumidifying space required
4 Sensible heat exchanger

Claims (7)

An air supply path that sucks air from outside and supplies it indoors, and an exhaust path that sucks air from indoors and discharges air out of the room are provided side by side, and a desiccant rotor that is driven to rotate at a predetermined rotation speed is connected to the air supply path. And a heater for heating the air supply from the desiccant rotor of the air supply path to the air intake side, and regenerating the desiccant with the heated air heated by the heater. In the desiccant humidifier configured to humidify the supply air to the room by dehumidification from the desiccant rotor, at least a part of the dehumidified air passing through the desiccant rotor in the exhaust path is supplied to the dehumidifying space. A desiccant humidity controller characterized in that the exhaust path and the dehumidification-required space are communicated as described above. A sensible heat exchanger that performs sensible heat exchange between the air supply and exhaust air is arranged across the air supply path and the exhaust path, and the exhaust side heated by the heat obtained by absorbing moisture with the desiccant rotor in the exhaust path. Sensible heat exchange is performed before heating the air and the supply air in the supply path with the heater in the supply path, and dehumidification passes through the desiccant rotor in the exhaust path and sensible heat exchange in the sensible heat exchanger. The desiccant humidity controller according to claim 1, wherein the exhaust path and the dehumidifying space are connected so as to supply at least a part of the cooled air to the dehumidifying space. An air supply path that sucks air from outside and supplies it indoors, and an exhaust path that sucks air from indoors and discharges air out of the room are provided side by side, and a desiccant rotor that is driven to rotate at a predetermined rotation speed is connected to the air supply path. In the case of dehumidifying the supply air supplied to the room, the exhaust gas is heated on the exhaust suction side from the desiccant rotor in the exhaust path, and the supply air supplied to the room is humidified. Is a desiccant humidifier in which the air supply is heated on the intake side of the air supply from the desiccant rotor in the air supply path, when the air supplied to the room is dehumidified, the air passing through the desiccant rotor in the air supply path is At least a part of the air is supplied to the dehumidification-requiring space, and the air supply path and the exhaust air are supplied so that at least a part of the air that has passed through the desiccant rotor in the exhaust path is supplied to the dehumidification-required space when the air supplied to the room is humidified. Desiccant humidity machine, characterized in that communicated the road and main dehumidifying space. A sensible heat exchanger for exchanging sensible heat between the air supply and the exhaust is provided across the air supply path and the exhaust path, and when the supply air supplied to the room is dehumidified, the heat obtained from the air supply path exhausts the exhaust path. Is heated before being heated by a heater, and when the supply air supplied to the room is humidified, heat supplied from the exhaust path is used to heat the supply air in the supply path before being heated by the heater in the supply path. Sometimes the air passes through the desiccant rotor of the air supply path and is supplied with at least a part of the dehumidified air whose temperature has been lowered by sensible heat exchange and sensible heat exchange to the dehumidifying space required. The air supply path and the exhaust path are communicated with the dehumidifying space so that at least part of the air that has been dehumidified and has undergone sensible heat exchange in the sensible heat exchanger and has been cooled is supplied to the dehumidifying space. The desiccant tone according to claim 3, characterized in that: Machine. The amount of air sent to the dehumidification-required space can be varied so that the ratio of the amount of air supplied to the room and the amount of air sent to the dehumidification-required space can be changed by humidifying in the air supply path. Item 3. The desiccant humidity controller according to claim 1 or 2. The ratio of the amount of air supplied to the room by dehumidifying or humidifying in the air supply path and the amount of air sent to the required dehumidifying space can be changed by changing the amount of air sent to the required dehumidifying space. The desiccant humidity controller according to claim 3 or 4, wherein The desiccant humidity controller according to any one of claims 1 to 4, wherein an amount of air supplied from outside to the room and an amount of air exhausted from the room to the outside are variable.

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