JP5337112B2 - Humidity control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a humidity control device which can efficiently perform humidity control of air in summer and in winter by utilizing reversible moisture adsorption characteristics of a desiccant. <P>SOLUTION: A humidity control device includes a metal fin group 31 including the desiccant as a surface layer. a ventilation chamber 12 having an air inlet 13 and an air outlet 14 and housing the fin group 31, and heating means 20A, 20B for heating the desiccant by heating the fin group 31. The desiccant is composed of synthetic zeolite of which the moisture absorption temperature region is 0-30&deg;C and the dewatering temperature region is 60-80&deg;C, and the heating means 20A, 20B includes a solar water heater 81 and a heat pump 40. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a humidity control apparatus, and more particularly, to a humidity control apparatus that utilizes the above-described characteristics of a desiccant that exhibits reversible moisture adsorption characteristics in which a moisture absorption temperature region and a dehydration temperature region higher than that exist.

  Conventionally, there is an idea to use the reversible moisture adsorption characteristics of natural materials and artificial humidity-controlled building materials (solid materials, etc.) in order to keep the air environment in the building within an appropriate range (for example, Patent Document 1).

JP 2004-333106 A (0049-0051)

  However, it is impossible to efficiently control the humidity of the living space in summer and winter with only the idea described in Patent Document 1.

  The present invention has been made under the above circumstances, and pays attention to the fact that a specific desiccant other than the above-described solid material exhibits reversible moisture adsorption characteristics, and the reversible moisture of the desiccant An object of the present invention is to provide a humidity control device that can efficiently control the humidity of the outside air or the inside air (room air) in summer and winter by using the adsorption characteristics.

The humidity control apparatus according to the present invention has a reversible temperature region that absorbs moisture in the air and a dehydration temperature region in which the absorbed moisture contained in the higher temperature region is released into the air. A metal fin group provided with a desiccant that exhibits moisture adsorption characteristics as a surface layer, a ventilation chamber having an air inlet and an air outlet and containing the fin group, and heating the fin group Heating means for heating the desiccant to a temperature belonging to the dehydration temperature region, and an air return pipe extending from the living room is connected to the air inlet, and the air outlet is connected to the living room. An air supply line is connected, and an outside air line for introducing outside air into the air return line is connected to an intermediate position of the air return line, and the air in the living room is connected to the connection point. The mode to be introduced at the entrance and the outside air Is switching valve interposed for switching a mode to be introduced into the inlet, wherein the feed conduit, is switching valve interposed used to discharge the air from the air outlet to the outside of the residence chamber The heating means includes the main heating means having a main heat transfer tube to which the fin group is fixed, and a solar water heater for generating hot water flowing in the main heat transfer tube, and the fin group is fixed. It is comprised by the auxiliary | assistant heating means provided with a sub heat exchanger tube and the heat pump which generates the heat medium which distribute | circulates in this sub heat exchanger tube .

  In the humidity control apparatus having this configuration, when air is controlled and introduced into the ventilation chamber to a temperature included in the moisture absorption temperature region of the drying agent forming the surface layer of the fin group, the air in the ventilation chamber comes into contact with the drying agent. The desiccant absorbs moisture contained in the air, and the humidity of the air decreases.

  On the other hand, there is a limit to the water absorption capacity of the desiccant forming the surface layer of the fin group, and when the absorption capacity is saturated, the water absorption capacity of the desiccant is not exhibited. Therefore, when the fin group is heated by the action of the heating means and the desiccant is heated to a temperature belonging to the dehydration temperature region, the moisture absorbed by the desiccant is released into the air in the ventilation chamber, and the moisture generated by the desiccant The ability to absorb is regenerated.

  Therefore, when the humidity of outside air or room air is high, such as in summer when the temperature is high, the switching valve interposed in the middle of the air return pipe is set to a mode that introduces the air in the living room to the air inlet of the humidity controller. In addition, by setting the switching valve interposed in the air supply conduit to a mode in which the air exiting from the air outlet of the humidity control device is sent to the living room, moisture by the desiccant forming the surface layer of the fin group By utilizing the absorption capacity of the living room, the humidity of the air in the living room can be lowered, and when the absorption capacity is saturated and the moisture absorption capacity by the desiccant is no longer exhibited, it is located in the middle of the air return line The switching valve interposed in the mode is a mode for introducing the outside air into the air inlet of the humidity control device, and the switching valve interposed in the air supply line is set so that the air outlet of the humidity control device is opened to the outside air. The desiccant When heated in the dehydration temperature region, the reversible water absorption characteristics of the drying agent, the water absorbed in the desiccant drying agent is released into the outside air is reproduced. Also, when the outside air or room air is dry, such as in winter when the temperature is low, first, the switching valve interposed in the middle of the air return line is set to a mode that introduces the outside air into the air inlet of the humidity controller. In addition, by making the air outlet of the humidity control device open to the outside air by using the switching valve interposed in the air supply conduit, moisture in the air flowing through the ventilation chamber is absorbed by the desiccant. A sufficient amount of moisture in the air is absorbed, and the switching valve interposed in the middle of the air return line is set to a mode in which the air in the living room is introduced into the air inlet of the humidity control device, Heating the desiccant to a temperature belonging to the dehydration temperature region by the action of the heating means by setting the switching valve interposed in the trachea to a mode in which the air exiting from the air outlet of the humidity control device is sent to the living room Moisture absorbed by the desiccant by Is released into the air vent chamber can increase the humidity of the air in the living chamber.

Furthermore, in the present invention, as described above, the heating unit includes the main heating unit having the main heat transfer tube to which the fin group is fixed, and a solar water heater for generating hot water flowing in the main heat transfer tube, Although it is comprised by the auxiliary | assistant heating means provided with the heat pump which generate | occur | produces the heat medium which distribute | circulates in the sub heat exchanger tube which the said fin group fixed, and this sub heat exchanger tube, In this structure, a solar water heater Has the function of generating water by heating water with solar heat, and in many cases, it is installed on the roof of a house. According to this solar water heater, hot water can be generated efficiently in summer when the temperature is high, and it is possible to generate hot water even in winter when the temperature is low. When it is difficult to generate hot water, the desiccant forming the surface layer of the fin group can be heated and dehydrated using a high-temperature heat medium generated by a heat pump.

  In the present invention, the desiccant forming the surface layer is preferably made of synthetic zeolite having a moisture absorption temperature range of 0 to 30 ° C and a dehydration temperature range of 60 to 80 ° C. Synthetic zeolite is a desiccant derived from a naturally occurring zeolite and is sometimes referred to as “molecular sieve” or “eslon”. When this heat is applied at 60 to 80 ° C., it absorbs all of the absorbed moisture, while it absorbs moisture at around 30 ° C. Moreover, even if it is 30 degrees C or less, it absorbs moisture in a temperature region other than below freezing point. Therefore, use the moisture absorption performance of the synthetic zeolite in summer when the temperature and humidity in the air are high, and use the moisture release performance of the synthetic zeolite in the winter when the temperature and humidity in the air are low. As a result, the humidity of the air can be adjusted appropriately.

  As described above, according to the present invention, air can be efficiently conditioned in summer and winter using the reversible moisture adsorption characteristics of a desiccant such as synthetic zeolite.

It is explanatory drawing which illustrated the humidity control apparatus which concerns on embodiment of this invention. It is the whole air-conditioning system explanatory view which illustrated humidity control mode of summer. (A)-(D) are explanatory drawings which showed states, such as a switching valve in the humidity control driving | operation of a summer. It is the whole air-conditioning system explanatory view which illustrated the desiccant regeneration operation mode of summer. It is explanatory drawing which showed the state of the switching valve in the desiccant reproduction | regeneration driving | operation of a summer. It is the whole air-conditioning system explanatory view which illustrated the moisture absorption operation mode of winter. It is explanatory drawing which showed the state of the switching valve etc. in the water | moisture-content absorption driving | operation of winter. It is the whole air-conditioning system explanatory view which illustrated humidity control operation mode of winter. It is explanatory drawing which showed the state of the switching valve etc. in the humidity control driving | running of winter. It is explanatory drawing of a radiator.

  FIG. 1 is an explanatory view illustrating a humidity control apparatus 10 according to an embodiment of the invention. In the humidity control apparatus shown in FIG. 1, an internal space of a rectangular box-shaped casing 11 is formed as a ventilation chamber 12, and an air inlet 13 and an air outlet 14 communicating with the ventilation chamber 12 conflict with each other. On the side. In the ventilation chamber 12, a meandering main heat transfer tube 21 and a meandering sub heat transfer tube 25 are arranged. And the heat-medium inlet 22 and the heat-medium outlet 23 of the main heat exchanger tube 21 protrude on the opposite side of the housing 11. Similarly, the heat medium inlet 26 and the heat medium outlet 27 of the sub heat transfer tube 25 also protrude on opposite sides of the housing 11. Further, a fin group 31 that is a set of a large number of fins made of a thin metal plate and arranged in parallel is fixed to the main heat transfer tube 21 and the sub heat transfer tube 25 that are bent in a meandering manner. It is comprised so that the air which distribute | circulates the ventilation chamber 12 may contact 31. FIG.

  A hot water supply pipe (not shown) of a solar water heater is connected to the heat medium inlet 22 of the main heat transfer pipe 21, whereas a solar water heater is connected to the heat medium outlet 23 of the main heat transfer pipe 21. A hot water return pipe (not shown) is connected. And it is comprised so that the fin group 31 may be heated when the hot water which generate | occur | produced with the solar water heater distribute | circulates the pipe line of the main heat exchanger tube 21. FIG. Therefore, the main heating means 20A is constituted by the main heat transfer tube 21 to which the fin group 31 is fixed and the solar water heater.

  Further, a heat medium supply pipe 41 of the heat pump 40 is connected to the heat medium inlet 26 of the sub heat transfer pipe 25, and a heat medium return pipe 42 of the heat pump 40 is connected to the heat medium outlet 27 of the sub heat transfer pipe 25. ing. The fin group 31 is also heated when the heat medium of the heat pump 40 flows through the pipe line of the sub heat transfer tube 25. Therefore, the auxiliary heating means 20 </ b> B is configured by the sub heat transfer tube 25 to which the fin group 31 is fixed and the heat pump 40. The auxiliary heating means 20B plays a role of assisting the heating action by the main heating means 20A.

  As shown enlarged in FIG. 1, a desiccant is applied to the outer surface of each fin 32 forming the fin group 31, and this desiccant forms a surface layer 50 of the fin group 31. ing. The desiccant forming the surface layer 50 of the fin group 31 exhibits reversible moisture adsorption characteristics. Here, the reversible moisture adsorption property of the desiccant means that the desiccant itself has a moisture absorption temperature region that absorbs moisture in the air and a dehydration temperature region that releases the absorbed moisture into the air. It is a characteristic that the desiccant absorbs moisture in the air at a temperature included in the temperature region and releases moisture absorbed by the desiccant at a temperature included in the dehydration temperature region. And as for the desiccant which forms the surface layer 50 of the fin group 31 employ | adopted for this embodiment, the dehydration temperature area | region is contained in the high temperature area | region rather than the moisture absorption temperature area | region.

  The desiccant used in this embodiment is a synthetic zeolite having a moisture absorption temperature range of 0 to 30 ° C and a dehydration temperature range of 60 to 80 ° C. As described above, a synthetic zeolite is a desiccant derived from a naturally occurring zeolite and is called “molecular sieve” or “eslon”. In addition, when synthetic zeolite is used as a desiccant as in the embodiment, moisture in the summer air with high air temperature and humidity in the air is absorbed to reduce the humidity by utilizing the moisture absorption performance of the synthetic zeolite. be able to. Further, by utilizing the moisture release performance of the synthetic zeolite, it is possible to release moisture into the air in winter where the temperature and humidity in the air are low, thereby increasing the humidity of the air and preventing overdrying of the air.

  Next, an air conditioning system for adjusting the humidity of the living room using the humidity control apparatus 10 described with reference to FIG. 1 will be described with reference to FIGS. 2, 4, 6, and 8 are explanatory diagrams of the entire air conditioning system. As apparent from these drawings, an air return pipe 61 extending from the living room R is connected to the air inlet 13 of the humidity control apparatus 10, and an air supply pipe 62 leading to the living room R is connected to the air outlet 14. Has been. And the outside air line 63 which introduces outside air into the air return line 61 is connected to the middle part of the air return line 61, and the air of the living room R is introduced into the air inlet 13 at the connection point. A switching valve a for switching between a mode and a mode for introducing outside air into the air inlet 13 is interposed. Further, a hygrometer 64 and a blower fan (sirocco fan) 65 are interposed in the air supply pipe 62, and switching used for discharging the air exiting from the air outlet 14 to the outside of the living room R. A valve c is interposed. Further, a bypass pipeline 71 is connected to the downstream portion of the switching valve a in the air return pipeline 61, and an air cooling radiator 72 is interposed in the bypass pipeline 71. A switching valve b is interposed at the connection point between the upstream end of the bypass pipe 71 and the air return pipe 61, and the air inlet of the humidity control apparatus 10 without passing through the radiator 72 by the switching valve b. 13 and a mode in which air is introduced into the air inlet 13 of the humidity control apparatus 10 through the radiator 72 can be selected. The structure of the radiator 72 is schematically shown in FIG. 10, and the structure of the radiator in FIG.

  A solar water heater 81 is installed on the roof of the living room R. The hot water supply pipe 82 of the solar water heater 81 is connected to the heat medium inlet 22 of the humidity control apparatus 10, and a shut-off valve d is interposed in the middle of the hot water supply pipe 82. A hot water return pipe 83 of the solar water heater 81 is connected to the heat medium outlet 23 of the humidity controller 20.

A part of the air return pipe 61 and the outside air pipe 63 described above are connected to a temperature adjustment unit 66 installed in the ground. The temperature adjustment unit 66 uses the fact that the geothermal temperature is kept almost constant throughout the year regardless of seasonal changes, and uses the temperature of the air flowing through the air return pipe 61 and the outside air pipe 63 as the geothermal heat. It has a function to control in the same way as temperature.
The configuration of the radiator 72 will be described with reference to FIG. As shown in the figure, the radiator 72 has an inner space of a rectangular box-shaped casing 73 formed as a ventilation chamber 74, and an air inlet 75 and an air outlet 76 communicating with the ventilation chamber 74 include a casing 73. It is provided on the opposite side. In the ventilation chamber 74, a meandering heat transfer tube 78 having a fin group 77 is provided. And the heat-medium inlet and the heat-medium outlet of the heat exchanger tube 78 protrude to the opposite sides of the housing 73.

  Next, the operation of the air conditioning system will be described separately for summer and winter. Here, the summer season is a season in which the outside air temperature is high and the outside air humidity is 50% or more, and the winter season is a season in which the outside air temperature is low and the outside air humidity is 50% or less. .

  FIG. 2 shows a case where the humidity of the indoor air in the living room R is adjusted to 50% or less in the summer. Since the outdoor air in summer is high in humidity, the humidity control operation in summer is an operation intended to reduce the humidity of the indoor air in the living room R.

  As shown in FIG. 2 or FIG. 3 (A), the switching valve a is configured such that the air in the living room R flows through the air return pipe 61 and passes through the temperature adjustment unit 66, and the air inlet of the humidity control apparatus 10. 13 is switched to the mode introduced in FIG. In addition, the switching valve c is switched to a mode in which the air exiting from the air outlet 14 of the humidity control apparatus 10 is sent to the living room R. Further, the switching valve b is switched to a mode for sending air to the humidity control apparatus 10 without passing through the radiator 72, and the cutoff valve d is set to the cutoff mode.

  In the summer humidity control operation to keep the humidity of the air in the living room R below 50%, when the blower fan 65 is activated, the air in the living room R flows through the air return pipe 61 to adjust the temperature. It passes through the unit 66, is introduced into the air inlet 13 of the humidity control apparatus 10 through the switching valve a and the switching valve b, flows through the ventilation chamber 12 of the humidity control apparatus 10, exits from the air outlet 14, and passes through the air supply line 62. Air is sent to the living room R through.

  Such a circulation path is maintained while the air humidity of the air supply line 62 measured by the hygrometer 64 is 50% or less, and the air humidity of the air supply line 62 measured by the hygrometer 64 is 50%. When the percentage becomes more than%, the above route is blocked. This point will be further described later.

  In the humidity control operation in summer described above, the temperature of the air that has passed through the temperature adjustment unit 66 is controlled to a temperature equivalent to the geothermal temperature. Since the geothermal temperature is maintained at 0 ° C. or more and 30 ° C. or less, for example, around 25 ° C. throughout the year, even if the air entering the temperature adjustment unit 66 is at a high temperature of 30 ° C. or more, the air that has passed through the temperature adjustment unit 66 The temperature is controlled to 0 to 30 ° C. or lower. Therefore, in the ventilation chamber 12 of the humidity control apparatus 10, the air controlled to a temperature of 30 ° C. or less comes into contact with the desiccant forming the surface layer 50 of the fin group 31 shown in FIG. Since this desiccant has an adsorption characteristic of absorbing moisture in the air at a moisture absorption temperature range of 0 to 30 ° C., moisture in the air flowing through the ventilation chamber 12 is absorbed by the desiccant. As a result, the humidity of the air sent to the residence room R becomes 50% or less, and the humidity environment is maintained in the residence room R so that it does not feel muggy.

  In the above-described humidity control operation in summer, the case where the air in the living room R is recirculated to the living room R through the air return pipe 61 has been described. However, this point is that the outside air is sent to the living room R. It is also possible to perform an introduction operation. In the humidity control operation in summer, when the above-described outside air introduction operation is performed, the outside air introduced into the outside air line 63 is sent to the air return line 61 by switching the switching valve a as shown in FIG. I care. Since the temperature adjustment unit 66 is also provided in the outside air pipe 63, the humidity of the air sent to the living room R becomes 50% or less by performing this outside air introduction operation, and the heat in the living room R is muggy. The humidity environment is maintained to the extent that you do not feel it.

  In addition, by cooling the air using the radiator 72 provided on the upstream side of the humidity control apparatus 10, the amount of saturated water vapor in the air introduced into the ventilation chamber 12 of the humidity control apparatus 10 is reduced to control the humidity. It is also possible to increase efficiency. In this case, in the humidity control operation in the summer, the switching valve b is switched to send air into the bypass 71 as shown in FIG. If it does in this way, air will cool by passing the ventilation chamber 74 of the radiator 72, and the saturated water vapor | steam amount will decrease. Therefore, the load for moisture absorption by the desiccant of the humidity control apparatus 10 is reduced, and the humidity control operation in the summertime can be performed for a long time. Similarly, even under the above-described outside air introduction operation, the same effect is exhibited by switching the switching valve b and sending air into the bypass 71 as shown in FIG.

  When the humidity control operation in the summer is performed continuously, the moisture absorption capacity of the desiccant forming the surface layer 50 of the fin group 31 of the humidity control apparatus 10 decreases. Therefore, when the measured value by the hygrometer 64 becomes 50% or more, the operation proceeds to a desiccant regeneration operation for regenerating the desiccant.

  FIG. 4 shows a case where a desiccant regeneration operation is performed in summer. In this desiccant regeneration operation, when the measured value of the hygrometer 64 becomes 50% or more, as shown in FIGS. 4 and 5, the switching valve “a” causes the outside air introduced into the outside air line 63 to be returned to the air return pipe. The mode is to send air to the road 61. Further, the shutoff valve d is switched, and the hot water generated in the solar water heater 81 is introduced into the heat medium inlet 22 of the humidity control apparatus 10 through the hot water supply pipe 82, and at the same time, the switching valve c is switched to adjust the temperature. The air outlet 14 of the wet device 10 is opened to the outside air. When this desiccant regeneration operation is performed, the hot water generated in the solar water heater 81 is supplied to the main heat transfer pipe 21 of the humidity control apparatus 10, and therefore the surface layer 50 of the fin group 31 fixed to the main heat transfer pipe 21 is removed. The forming desiccant is heated. When the desiccant is heated to a temperature within the range of 60 to 80 ° C., which is the dehydration temperature range, by the warm water, the moisture absorbed by the desiccant is absorbed in the air due to the reversible moisture adsorption characteristics of the desiccant. And the desiccant is regenerated. In this desiccant regeneration operation, moisture released from the desiccant is mixed with the air flowing through the ventilation chamber 12 of the humidity control apparatus 10 to increase the humidity of the air. Therefore, this high-humidity air is discharged to the outside air through the switching valve c.

  When performing the desiccant regeneration operation, the hot water generated by the solar water heater 81 may not reach 60 to 80 ° C., which is the dehydrating temperature region of the desiccant, even in summer. In that case, by operating the heat pump 40, a heat medium of 60 to 80 ° C. is fed into the sub heat transfer tube 25 of the humidity control apparatus 10.

  In the desiccant regeneration operation in summer, the switching valve a is set to a mode in which outside air is introduced into the air inlet 13 of the humidity control apparatus 10, and the switching valve c is set to a mode in which the air outlet 14 of the humidity control apparatus 10 is opened to the outside air. Is set. Thus, outside air flows through the outside air duct 63 and is introduced into the air inlet 13 of the humidity control apparatus 10, flows through the vent chamber 12 of the humidity control apparatus 10, exits from the air outlet 14, and is released to the outside air. .

  Whether or not the desiccant has been regenerated by performing the desiccant regeneration operation is determined based on the measured value by the hygrometer 64, and when the measured value of the hygrometer 64 reaches a sufficiently low value of 50% or less, Return to humidity control in summer.

  The room temperature of the living room R can be controlled using an air conditioner C installed in the living room R.

  FIG. 6 shows a case where the humidity of the indoor air of the living room R is adjusted to an appropriate value of 50% or more in winter. Since the outdoor air in the winter is dry, the humidity control operation in the winter is an operation intended to increase the humidity of the indoor air in the living room R.

  Prior to performing the humidity control operation in winter, a moisture absorption operation (water absorption operation in winter) is performed in which the desiccant forming the surface layer 50 of the fin group 31 of the humidity control apparatus 10 absorbs moisture.

  As shown in FIGS. 6 and 7, the switching valve a is set to a mode in which the outside air that has passed through the temperature adjustment unit 66 is introduced into the air inlet 13 of the humidity control apparatus 10, and the switching valve b allows the outside air to pass through the radiator 71. The mode is switched to the mode of sending to the humidity control apparatus 10 without passing through. The switching valve c is set to a mode in which the air outlet 14 of the humidity control apparatus 10 is opened to the outside air. Further, the shut-off valve d is set to the shut-off mode.

  In the moisture absorption operation in winter, when the blower fan 65 is activated, the outside air flows through the outside air pipe 63 and passes through the temperature adjustment unit 66, and then passes through the switching valve a and the switching valve b to the air in the humidity control apparatus 10. It is introduced into the inlet 13, flows through the ventilation chamber 12 of the humidity control apparatus 10, exits from the air outlet 14, and is released to the outside air by the switching valve c.

  When the moisture absorption operation is performed in winter, the outside air is controlled to a temperature equivalent to the geothermal temperature by passing through the temperature adjustment unit 66. Since the geothermal temperature is maintained at 0 to 30 ° C., for example, around 25 ° C. throughout the year, the temperature of the air that has passed through the temperature adjustment unit 66 is controlled to 0 to 30 ° C. Therefore, in the ventilation chamber 12 of the humidity control apparatus 10, the air controlled to a temperature of 0 to 30 ° C. comes into contact with the desiccant forming the surface layer 50 of the fin group 31 shown in FIG. Since this desiccant has an adsorption characteristic of absorbing moisture in the air at a moisture absorption temperature range of 0 to 30 ° C., moisture in the air flowing through the ventilation chamber 12 is absorbed by the desiccant. Whether or not moisture in the air has been sufficiently absorbed by the desiccant can be determined by measuring the humidity of the air released from the switching valve c to the outside air with the hygrometer 64.

  After a sufficient amount of moisture in the air is absorbed by the desiccant in this way, the operation shifts to the humidity control operation in winter.

  In the humidity control operation in winter, as shown in FIG. 8 or FIG. 9, the switching valve c is switched and the air that has exited the air outlet 14 of the humidity control apparatus 10 is sent into the living room R. Further, the shutoff valve d is switched, and the hot water generated in the solar water heater 81 is introduced into the heat medium inlet 22 of the humidity control apparatus 10 through the hot water supply pipe 82. When the humidity control operation is performed in winter, the hot water generated by the solar water heater 81 is supplied to the main heat transfer pipe 21 of the humidity control apparatus 10, and thus the surface layer 50 of the fin group 31 fixed to the main heat transfer pipe 21. The desiccant forming is heated. When the desiccant is heated to a temperature within the range of 60 to 80 ° C., which is the dehydration temperature range, by the warm water, the moisture absorbed by the desiccant is absorbed in the air due to the reversible moisture adsorption characteristics of the desiccant. To be released. As a result, moisture released from the desiccant is mixed with the air flowing through the ventilation chamber 12 of the humidity control apparatus 10 to increase the humidity of the air. Therefore, the dryness of the air sent into the living room R is lowered, and the humidity environment of the living room R is kept good.

  When performing the humidity control operation in winter, it is possible that the hot water generated by the solar water heater 81 does not reach 60 to 80 ° C., which is the dehydrating temperature region of the desiccant. In that case, by operating the heat pump 40, a heat medium of 60 to 80 ° C. is fed into the sub heat transfer tube 25 of the humidity control apparatus 10.

  This humidity control operation is the same whether the mode in which air is circulated to the living room R by the switching valve a or the mode in which outside air is sent to the living room R by the switching valve a is selected. Can be done.

  If the humidity control operation is continuously performed in winter, the amount of moisture absorbed by the desiccant is reduced, and the humidity control operation cannot be continued. Therefore, when it is determined from the measurement value of the hygrometer 64 that the air sent into the living room R is too dry, the process proceeds to the water absorption operation in winter described with reference to FIGS. 6 and 7.

  The room temperature of the living room R can be controlled using an air conditioner C installed in the living room R.

  In the above, the case where the humidity control operation and the desiccant regeneration operation are alternately performed in the summer and the humidity control operation and the moisture absorption operation are alternately performed in the winter has been described. However, this point is illustrated in FIGS. 6. Prepare two air conditioning systems as shown in Fig. 8, and in summer, perform humidity conditioning operation on one air conditioning system and perform drying agent regeneration operation on the other air conditioning system. It is also possible to perform the moisture absorption operation with the air conditioning system on the other side when the humidity control operation is performed with the air conditioning system on the one side. In this way, it is possible to perform continuous humidity control operation in summer and winter.

DESCRIPTION OF SYMBOLS 10 Humidity control device 12 Ventilation chamber 13 Air inlet 14 Air outlet 20A Main heating means (heating means)
20B Auxiliary heating means (heating means)
21 Main Heat Transfer Tube 25 Sub Heat Transfer Tube 31 Fin Group 40 Heat Pump 50 Surface Layer 81 Solar Water Heater

Claims (2)

A desiccant that exhibits reversible moisture adsorption characteristics, which includes a moisture absorption temperature region that absorbs moisture in the air and a dehydration temperature region that is contained in a region higher than the moisture absorption temperature region and that releases absorbed moisture into the air. A metal fin group provided as a surface layer;
A vent chamber having an air inlet and an air outlet and containing the fin group;
Heating means for heating the fin group to heat the desiccant to a temperature belonging to the dehydration temperature region,
An air return line extending from the living room is connected to the air inlet, and an air supply line leading to the living room is connected to the air outlet,
An outside air line for introducing outside air into the air return line is connected to an intermediate position of the air return line, and a mode for introducing the air of the living room into the air inlet is connected to the connection place, and the outside air is A switching valve for switching the mode to be introduced to the air inlet is interposed,
A switching valve used to discharge the air that has exited from the air outlet to the outside of the living room is interposed in the air supply conduit, and the heating means includes a main transmission to which the fin group is fixed. The main heating means having a heat pipe and a solar water heater for generating hot water circulating in the main heat transfer pipe;
Auxiliary heating means comprising a sub-heat transfer tube to which the fin group is fixed, and a heat pump that generates a heat medium flowing in the sub-heat transfer tube,
A humidity control apparatus characterized by comprising the above .   The humidity control apparatus according to claim 1, wherein the desiccant forming the surface layer is a synthetic zeolite having a moisture absorption temperature range of 0 to 30 ° C and a dehydration temperature range of 60 to 80 ° C.

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