JP2006112780A - Air conditioning unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify the structure of an air conditioning unit performing temperature conditioning, moisture conditioning, deodorizing and ventilation. <P>SOLUTION: This air conditioning unit comprises a discharge passage 19 discharging a part of indoor air, and a circulating passage 18 temperature-conditioning, moisture-conditioning and deodorizing a part of indoor air. This unit further comprises a water circulating circuit 30 in which water temperature is adjusted by a heat source circuit 37, and the water circulating circuit 30 includes a moisture exchanger 31 provided with a moisture permeating membrane, an indoor heat exchanger 14, and a water supply and discharge means 38 performing water supply or draining so that the water quantity of the water circulating circuit 30 is a predetermined. A heater 13 and a regeneration area 13 of an adsorptive element 10 are provided in the discharge passage 19 in order from the upstream side. An adsorption area 11 of the adsorptive element 10, the indoor heat exchanger 14 and the moisture exchanger 31 are provided in the circulating passage 18 in this order from the upstream side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner that performs temperature adjustment, humidity adjustment, deodorization, and ventilation.

  Conventionally, there has been known an air conditioner that performs temperature adjustment, humidity adjustment, deodorization, and ventilation using a desiccant rotor coated with an adsorbent having moisture adsorbability and odor adsorbability (for example, Patent Document 1 and Patents). Reference 2).

  For example, as shown in FIG. 14, the air conditioner disclosed in Patent Document 1 includes a rotor-type adsorption element a, a regeneration heating means b, a sensible heat exchanger c, a cooling means d, and an air supply means e, f. The air supply means f distributes the indoor air in the order of the sensible heat exchanger c, the regeneration heating means b, and the rotor type adsorption element a, while the air supply means e converts the outdoor air g introduced from the outdoor i. Deodorized and dehumidified by the rotor-type adsorption element a, cooled by the sensible heat exchanger c and the cooling means d, and then supplied to the room h.

The sensible heat exchanger c reduces heat loss due to ventilation by exchanging heat between outdoor air introduced from the outdoor i and indoor air derived from the indoor h. In the rotor-type adsorption element a, the region through which the outdoor air g passes and the region through which the room air passes are sequentially switched as the rotor rotates. Thus, the adsorption and regeneration cycle of the adsorption element is repeated, and moisture and odor adsorbed from the outdoor air g are released to the indoor air derived from the indoor h and discharged to the outdoor i.
Japanese Patent Laid-Open No. 5-115737 Japanese Patent Laid-Open No. 7-120021

However, in the configuration of the air conditioning apparatus, it is necessary to simultaneously perform forced introduction of outdoor air and forced exhaust of indoor air by the air feeding means e and f for adsorption and regeneration of the adsorption element. Therefore, it could not be applied to an air conditioner that does not forcibly introduce outdoor air .

Also, in order to perform dehumidification and humidification, for make-up water pipe system to the drainage piping system and the humidifier drain water is required, configuration of the apparatus becomes complicated.

  This invention is made | formed in view of this point, The place made into the objective is to simplify the structure for performing temperature control, humidity control, deodorizing, and ventilation.

To achieve the above object, the present invention is, chamber heat exchanger (14) and moisture exchanger water circulation circuit (30) having a (31) is provided, humidified or by using the water circulation circuit (30) Dehumidification was performed.

Specifically, the first invention is an air conditioner that regulates the temperature, humidity, deodorization, and ventilation of indoor air, and includes a water circulation circuit (30) through which water circulates and the water circulation circuit (30). A heat exchanger (14) for cooling or heating the indoor air by exchanging heat between the water in the water circulation circuit (30) and the room air, and the water circulation circuit (30). 30) Dehumidifying / humidifying means (31, 69) for moving moisture between water and room air, and adsorbing means for adsorbing odor and moisture in room air, having adsorption elements for odor adsorption and moisture adsorption (10).

  In accordance with the above-mentioned invention-specific matters, the room air is deodorized and dehumidified by the adsorption means (10), adjusted in temperature by the heat exchanger (14), and adjusted in humidity by the dehumidifying / humidifying means (31, 69). At the time of dehumidification, the moisture absorbed by the dehumidifying / humidifying means (31, 69) is introduced into the water circulation circuit (30), while at the time of humidification, the moisture released to the indoor air is passed through the water circulation circuit (30) to the dehumidifying / humidifying means (31, 69). 69). This eliminates the need for a drain drain piping system or a humidifying makeup water piping system. Therefore, the configuration of the apparatus is simplified.

In a second aspect based on the first aspect , the dehumidifying / humidifying means includes a moisture permeable membrane, and the indoor circulation air that flows outside the moisture permeable membrane and the water circulation circuit (30 that circulates inside the moisture permeable membrane). ) To move the water to and from the water to dehumidify or humidify the indoor air (31).

  When the water vapor partial pressure of the indoor air outside the moisture permeable membrane is larger than the water vapor partial pressure of saturated air corresponding to the temperature of the water inside the moisture permeable membrane, the difference in water vapor partial pressure is As a driving force, moisture moves from room air to water through the moisture permeable membrane. As a result, the room air is dehumidified. On the other hand, when the water vapor partial pressure of the indoor air is smaller than the water vapor partial pressure of the above-mentioned saturated air, the difference in the water vapor partial pressure becomes a driving force, and moisture flows from the water toward the room air via the moisture permeable membrane. Moving. As a result, room air is humidified.

According to a third invention, in the second invention, the heat exchanger (14) is provided above the moisture exchanger (31).

  When drain is generated in the heat exchanger (14) due to the above-mentioned invention-specific matters, the drain is dripped into the water exchanger (31) and circulated into the circulating water through the moisture permeable membrane of the water exchanger (31). Absorbed. This eliminates the need for a drain pan and simplifies the configuration of the apparatus.

In a fourth aspect based on the second aspect , the water circulation circuit (30) includes a water circulation circuit (30) such that the temperature of water flowing through the heat exchanger (14) and the water exchanger (31) is a predetermined temperature. The heat source (37) for cooling or heating the water of 30) is connected.

  According to the above-mentioned invention specific matter, the water in the water circulation circuit (30) is cooled or heated by the heat source (37) and adjusted to a predetermined temperature.

In a fifth aspect based on the second aspect , the water circulation circuit (30) is provided with water supply / drainage means (38) for performing water supply / drainage so that the amount of water in the water circulation circuit (30) becomes a predetermined amount. It is what.

  When the amount of water in the water circulation circuit (30) increases due to the absorption of moisture from room air, the increased amount of water is discharged by the water supply / drainage means (38). On the other hand, when water is released into the room air and the amount of water in the water circulation circuit (30) decreases, the reduced amount of water is supplied by the water supply / drainage means (38). Accordingly, the amount of water in the water circulation circuit (30) is maintained at a predetermined amount, and dehumidification or humidification by the moisture exchanger (31) is stably performed.

In a sixth aspect based on the second aspect , the water circulation circuit (30) is provided with a flow rate adjusting means (36) for adjusting the flow rate of water flowing through the moisture exchanger (31). It is.

  The temperature of the moisture permeable membrane can be easily controlled by adjusting the flow rate of the water flowing through the moisture exchanger (31) according to the above-mentioned invention specific matter. Therefore, it becomes easy to control the dehumidification amount or humidification amount of the room air.

In a seventh aspect based on the first aspect , the dehumidifying / humidifying means comprises a humidifying cooler (60) for cooling and humidifying the indoor air.

  The air dehumidified by the adsorbing means (10) is humidified and cooled by the humidifying cooler (60) according to the above-mentioned invention specific matters. Therefore, when the amount of dehumidification by the adsorbing means (10) is large, the room air is humidified by the humidifying cooler (60) until it reaches a predetermined humidity. Therefore, even when the amount of dehumidification by the adsorption means (10) is large, the dehumidification amount can be easily controlled. Moreover, since the latent heat of vaporization of water is used for cooling indoor air, the temperature difference between indoor air and water can be reduced. Therefore, the water in the water circulation circuit (30) can be set higher, and the operation efficiency is improved.

According to an eighth aspect of the present invention, in the first aspect , a discharge passage (19) for discharging the indoor air to the outside, a circulation passage (18) for returning the indoor air to the room, and an inflow for introducing the outdoor air into the room. A total heat exchanger (61) for exchanging heat between the ventilation path (9) having a passage (63) and the indoor air flowing through the discharge passage (19) and the outdoor air flowing through the inflow passage (63). In the circulation passage (18), the adsorption area (11) of the adsorption element of the adsorption means (10), the heat exchanger (14), and the dehumidifying / humidifying means (31, 60) are sequentially provided from the upstream side. In the exhaust passage (19) in order from the upstream side, the exhaust side flow path (65) of the total heat exchanger (61), and heating means (13) for heating the indoor air, And a regeneration region (12) of the adsorption element of the adsorption means (10), and an inflow channel (64) of the total heat exchanger (61) is provided in the inflow passage (63). That's what it meant.

  Due to the above-mentioned invention-specific matters, some room air is discharged to the outside (23) through the discharge passage (19), while outdoor air is introduced from the outside (23) into the room (22) through the inflow passage (63). Is done. A part of the room air is supplied to the room (22) through the circulation passage (18). The indoor air discharged to the outdoor (23) through the discharge passage (19) and the outdoor air introduced into the indoor (22) through the inflow passage (63) are heated via the total heat exchanger (61). Exchange is performed, and the cold or warm heat of the indoor air discharged to the outside (23) is recovered. Therefore, the efficiency of ventilation is improved and the operation efficiency is improved.

In a ninth aspect based on the eighth aspect , the outlet of the inflow passage (63) is provided upstream of the adsorption region (11) of the adsorption element of the adsorption means (10) in the circulation passage (18). It is what you have.

  Due to the above-mentioned invention specific matters, the outdoor air introduced from the outdoor (23) through the inflow passage (63) merges with the indoor air in the circulation passage (18) and is deodorized in the adsorption means (10). Therefore, the cleanliness of the air supplied to the room (22) is improved.

As described above , according to the first aspect, at the time of dehumidification, the moisture absorbed by the dehumidifying / humidifying means is discharged through the water circulation circuit. On the other hand, at the time of humidification, the moisture released into the room air by the dehumidifying / humidifying means is supplied through the water circulation circuit. Therefore, a drain drain piping system or a humidifying makeup water piping system can be eliminated. Therefore, the configuration of the apparatus can be simplified. In addition, the cooling operation and the heating operation can be easily switched by adjusting the temperature of the water in the water circulation circuit.

According to the second invention, the indoor air can be dehumidified or humidified by the difference in water vapor partial pressure caused by the temperature difference between the inside and outside of the moisture permeable membrane of the moisture exchanger. Therefore, the dehumidifying / humidifying means can be obtained with a simple configuration.

According to the third invention, when drain is generated in the heat exchanger, the drain is dropped into the moisture exchanger and absorbed by the circulating water through the moisture permeable membrane of the moisture exchanger. Therefore, since the drain pan is not necessary, the configuration of the apparatus can be further simplified.

According to 4th invention, the temperature of the water of a water circulation circuit can be adjusted by cooling or heating the water of a water circulation circuit with a heat source. Therefore, the heat exchange amount in the heat exchanger and the dehumidification amount or humidification amount in the moisture exchanger can be adjusted, and the controllability of temperature control and humidity control can be improved.

According to the fifth invention, since the water supply / drainage means automatically performs the water supply / drainage of the water circulation circuit, the drainage of water absorbed by the water exchanger and the replenishment of water released by the water exchanger are automatically performed. Can do. Moreover, since the amount of water in the water circulation circuit can be maintained at a predetermined amount, dehumidification or humidification by the moisture exchanger can be stably performed.

According to the sixth aspect of the invention, the dehumidification amount or the humidification amount of the indoor air can be easily controlled by adjusting the flow rate of the water flowing through the moisture exchanger.

According to the seventh aspect , even when the amount of dehumidification by the adsorption means is large, the dehumidification amount can be easily controlled. Moreover, since the latent heat of vaporization of water is used for cooling indoor air, the temperature difference between indoor air and water can be reduced. Therefore, the water in the water circulation circuit can be set higher, and the operation efficiency can be improved.

According to the eighth aspect , since outdoor air is forcibly introduced, the efficiency of ventilation can be improved. Moreover, since the cold heat or warm heat which indoor air discharged | emitted outside is collect | recovered, operating efficiency can be improved. Furthermore, since the introduced outside air can be introduced after being air-conditioned, the draft feeling due to the introduced outside air can be eliminated.

According to the ninth aspect , since the outdoor air introduced from the outside is deodorized by the adsorbing means and then supplied to the room, the cleanliness of the room air can be improved.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS After describing the forms of the prerequisite technology of the present invention, embodiments of the present invention will be described with reference to the drawings.

< Form of prerequisite technology >
As shown in FIG. 1, an air conditioner (51) according to a form of the base technology adjusts temperature, humidity, and deodorizes part of room air and returns it to the room (22), while sending other room air to a blower. In (17), the air is forcibly discharged to the outside (23), and the discharged air is introduced into the room (22) from the natural inlet (21, 21,...) To perform third type ventilation.

  First, the configuration of the air conditioner (51) will be described.

  The ventilation path (9) of the air conditioner (51) includes a circulation path (18) and a discharge path (19).

  In the circulation passage (18), a rotor-type adsorption element (10), an indoor heat exchanger (14), a circulation fan (16), and a humidifier (25) are provided in this order from the upstream side. The adsorbing element (10) includes an adsorbing element in which an adsorbent having odor adsorbing properties and moisture adsorbing properties, such as silica gel, zeolite, activated carbon, etc., is formed in a hollow structure, and constitutes an adsorbing means. A region located in the circulation passage (18) of the adsorption element (10) is an adsorption region (11) that adsorbs odors and moisture in the air.

  The discharge passage (19) includes a main passage (20) and a bypass passage (24) provided in parallel with the main passage (20). In the main passage (20), a heater (13) and an adsorption element (10) are provided in this order from the upstream side. A region of the adsorbing element (10) located in the circulation passage (18) is a regeneration region (12) for desorbing the adsorbed odor and moisture to regenerate the adsorbing element (10). A damper (15) is provided in the bypass passage (24). The damper (15) adjusts the air flow rate of the bypass passage (24) so that the regeneration region (12) of the adsorption element (10) reaches a predetermined temperature suitable for regeneration. Adjust the air flow. On the downstream side of the discharge passage (19), a discharge blower (17) for discharging room air to the outside (23) is provided.

  As shown in FIG. 2, the indoor heat exchanger (14) is provided in the refrigerant circuit (5). The refrigerant circuit (5) is formed by connecting a compressor (1), a four-way switching valve (2), an outdoor heat exchanger (3), an expansion valve (4), and the indoor heat exchanger (14). By switching the four-way selector valve (2), it is configured to be reversible. That is, the refrigerant circuit (5) is a heat pump type refrigerant circuit.

  Next, the operation of the air conditioner (51) will be described.

-Cooling operation-
During the cooling operation, in the refrigerant circuit (5), the four-way selector valve (2) is set to the solid line side in the figure. The refrigerant discharged from the compressor (1) is condensed in the outdoor heat exchanger (3), decompressed and expanded by the expansion valve (4), evaporated by the indoor heat exchanger (14), and then transferred to the compressor (1). Perform a return cycle.

  In the ventilation path (9), part of the room air flows through the circulation path (18) and is deodorized and dehumidified in the adsorption region (11) of the adsorption element (10). At this time, heat generated by the adsorption occurs in the adsorption region (11), and the indoor air is heated. Therefore, as shown in FIG. 3, the indoor air represented by the state point 1A is dehumidified and the temperature rises to a state of the state point 2A. Thereafter, the air is cooled by the refrigerant in the refrigerant circuit (5) in the indoor heat exchanger (14), and is supplied to the room (22) in the state of the state point 3A.

  On the other hand, the room air that has flowed into the discharge passage (19) is heated by the heater (13) to become high-temperature air, and flows into the regeneration region (12) of the adsorption element (10). This high-temperature air desorbs odorous components and moisture adhering to the regeneration region (12) and regenerates the adsorbent. And the air containing a odor component and moisture is discharged to the outside (23).

  Since the indoor air is forcibly discharged outside (23) through the discharge passage (19), the room (22) is in a negative pressure state, and the outside air is naturally discharged from the natural inlet (21, 21, ...). To be introduced. That is, ventilation is performed without forcibly introducing outdoor air by the blower.

-Heating operation-
In the heating operation, in the refrigerant circuit (5), the four-way selector valve (2) is set on the broken line side. The refrigerant discharged from the compressor (1) condenses in the indoor heat exchanger (14), decompresses and expands in the expansion valve (4), evaporates in the outdoor heat exchanger (3), and then compresses the compressor ( 1) Inhaled.

  In the ventilation path (9), part of the room air flows through the circulation path (18) and is adsorbed and dehumidified in the adsorption region (11) of the adsorption element (10). Then, after flowing out of the adsorption region (11), it is heated by the indoor heat exchanger (14). The heated air that has risen in temperature is humidified by the humidifier (25) and is supplied to the room (22) in a predetermined temperature and humidity state.

  On the other hand, the room air that has flowed into the discharge passage (19) is discharged to the outside (23) after the adsorption element (10) is regenerated in the same manner as in the cooling operation.

Thus, according to the air conditioning apparatus (51) of the form of the base technology , temperature control, humidity control, deodorization and ventilation are performed by circulating indoor air without forcibly introducing outdoor air. be able to. That is, a blower for introducing outdoor air becomes unnecessary.

  In addition, because the indoor air is cooled or heated by the indoor heat exchanger (14) provided in the reversible refrigerant circuit (5), cooling operation or heating operation can be selected without reversing the air flow path. Can be executed automatically. That is, a device for changing the air flow path is not required, and the configuration of the air conditioner (51) can be simplified.

  In the cooling operation, the indoor air is not dehumidified while being cooled, but is dehumidified once by the adsorption element (10) and then cooled by the indoor heat exchanger (14). Therefore, the amount of heat exchange in the indoor heat exchanger (14) only needs to change the sensible heat of the room air, and thus the amount of heat exchange is reduced by the amount of the latent heat change. Therefore, the evaporation temperature of the indoor heat exchanger (14) can be increased, and the load on the compressor (1) of the refrigerant circuit (5) can be reduced. Therefore, the efficiency of the air conditioner (51) can be improved.

<Embodiment 1 >
As shown in FIG. 4, the air conditioner (52) according to Embodiment 1 of the present invention replaces the refrigerant circuit (5) with a water circulation circuit (30) in the air conditioner (51) of the base technology form , A moisture exchanger (31) is provided on the downstream side of the indoor heat exchanger (14) in the circulation passage (18).

  First, the configuration of the air conditioner (52) will be described.

  The water circulation circuit (30) includes a pump (32) as a water transfer means, a heat source side heat exchanger (33), a solenoid valve (35), a moisture exchanger (31) as a moisture exchange means, and an indoor heat exchanger (14). Are connected in order. In addition, a bypass circuit (34) is provided in parallel with the electromagnetic valve (35) and the water exchanger (31). The bypass circuit (34) is provided with a flow rate adjustment valve (36). The flow rate adjusting valve (36) is a flow rate adjusting means for adjusting the amount of water flowing through the moisture exchanger (31) by adjusting the flow rate of the bypass circuit (34).

  The heat source side heat exchanger (33) is connected to a heat source circuit (37) that cools or heats water in the water circulation circuit (30), and between the heat medium of the heat source circuit (37) and water in the water circulation circuit (30). It is configured to allow heat exchange. As the heat source circuit (37), a heat pump chiller or a chiller / heater is used.

  The moisture exchanger (31) includes a moisture permeable membrane that allows water vapor to pass therethrough, and is configured to move moisture between air flowing outside the moisture permeable membrane and water flowing inside the moisture permeable membrane. Yes. That is, the water exchanger (31) is configured such that the water in the water circulation circuit (30) and the room air come into contact with each other through the moisture permeable membrane. In the moisture exchanger (31), moisture movement is performed as follows. That is, between the water vapor partial pressure of the indoor air flowing outside the moisture permeable membrane (surface side) of the moisture exchanger (31) and the water vapor partial pressure of saturated air corresponding to the temperature of the water flowing inside the moisture permeable membrane. There will be a difference. And this partial pressure difference becomes a driving force, and moisture moves from one side to the other side. In this way, moisture is transferred between water and air through the moisture permeable membrane.

  In the ventilation path (9), as described above, the moisture exchanger (31) is disposed downstream of the indoor heat exchanger (14) in the circulation path (18). Further, the moisture exchanger (31) is configured so that the drain generated in the indoor heat exchanger (14) is dropped into the moisture exchanger (31) and introduced into the water circulation circuit (30) through the moisture permeable membrane. It is arranged directly under the indoor heat exchanger (14). That is, the indoor heat exchanger (14) is arranged above the moisture exchanger (31), particularly directly above.

  The water circulation circuit (30) is provided with water supply / drainage means (38) for supplying and draining water so that the amount of water in the water circulation circuit (30) becomes a predetermined amount. The water supply / drainage means (38) includes a drainage pipe (39) provided with a solenoid valve for drainage (40), a water supply pipe (41) provided with a solenoid valve for water supply (42), and the amount of water in the water circulation circuit (30). And a controller (43) for controlling the opening and closing of the electromagnetic valve for drainage (40) and the electromagnetic valve for water supply (42). A water supply source (not shown) is connected to the water supply pipe (41).

  Next, the operation of the air conditioner (52) will be described. The air conditioner (52) selectively performs a cooling operation or a heating operation described below.

-Cooling operation-
First, the water circulation operation in the water circulation circuit (30) will be described. In the water circulation circuit (30), the water discharged from the pump (32) is cooled in the heat source side heat exchanger (33). The cold water flowing out from the heat source side heat exchanger (33) is diverted, and part of the water passes through the solenoid valve (35) and flows into the moisture exchanger (31), while the other cold water is bypassed (34). Flowing. The cold water that has flowed out of the moisture exchanger (31) joins the cold water in the bypass circuit (34), and then flows through the indoor heat exchanger (14). The cold water that has flowed out of the indoor heat exchanger (14) is sucked into the pump (32), is discharged from the pump (32) again, and the above-described circulation operation is repeated.

In the ventilation passage (9), a part of the room air that has flowed into the discharge passage (19) is heated by the heater (13) and then regenerated by the adsorption element (10), as in the base technology. Circulate area (12). At this time, the air heats and regenerates the adsorption element (10). Thereafter, this air flows out of the regeneration region (12) and is discharged to the outside (23).

  On the other hand, the indoor air flowing into the circulation passage (18) undergoes a state change as shown from the state point 1B to the state point 4B in FIG. Specifically, the indoor air represented by the state point 1B flowing into the circulation passage (18) is deodorized and dehumidified in the adsorption region (11) of the adsorption element (10). At this time, the temperature is increased by the heat of adsorption and the state 2B is reached. Thereafter, the air is cooled in the indoor heat exchanger (14) without being dehumidified, and the state 3B is reached. That is, a sensible heat change is performed.

  The air at the state point 3B is dehumidified and cooled in the moisture exchanger (31). Specifically, the temperature of the room air is higher than the temperature of the water in the moisture exchanger (31), and the water vapor partial pressure of the room air is larger than the water vapor partial pressure corresponding to the water. Therefore, the difference in water vapor partial pressure serves as a driving force, and moisture in the room air is absorbed by the water through the moisture permeable membrane. Accordingly, moisture in the room air is introduced into the water circulation circuit (30) through the moisture exchanger (31). In this way, the room air represented by the state point 3B becomes the state 4B and is supplied to the room (22).

  Note that the temperature control and humidity control in the indoor heat exchanger (14) and the moisture exchanger (31) adjust the temperature and flow rate of the water flowing through the indoor heat exchanger (14) and the moisture exchanger (31). Is done by. For example, when the temperature of the indoor air is considerably higher than the set value, the amount of water cooled in the water circulation circuit (30) by the heat source circuit (37) is increased, and the indoor heat exchanger (14) and the moisture exchanger ( Reduce the temperature of the water flowing through 31). As a result, the temperature difference between the indoor air and the indoor heat exchanger (14) and the moisture exchanger (31) increases, and the indoor air is further cooled and the temperature is lowered. Further, for example, when the difference between the humidity of the room air and the set value is small, the opening degree of the flow rate adjustment valve (36) is increased to reduce the amount of cold water flowing through the moisture exchanger (31). As a result, the amount of dehumidification is reduced.

  By the way, the amount of water in the water circulation circuit (30) gradually increases by introducing water into the water circulation circuit (30) through the water exchanger (31) as described above. Therefore, in this air conditioner (52), when the amount of water in the water circulation circuit (30) exceeds a predetermined amount set in advance, the electromagnetic valve for drainage (40) is opened by the controller (43), and the water circulation circuit (30) Water is discharged through the drain pipe (39). When the amount of water in the water circulation circuit (30) reaches a predetermined amount, the controller (43) closes the drain electromagnetic valve (40) and terminates drainage. In this way, the amount of water in the water circulation circuit (30) is maintained at a predetermined amount so that the moisture exchanger (31) performs stable dehumidification.

-Heating operation-
In the water circulation circuit (30), the water discharged from the pump (32) is heated in the heat source side heat exchanger (33). The water flowing out of the heat source side heat exchanger (33) then flows through the moisture exchanger (31) and the indoor heat exchanger (14) in the same manner as in the cooling operation, and is sucked into the pump (32).

  In the ventilation path (9), the room air that has flowed into the discharge passage (19) is heated by the heater (13) in the same manner as in the cooling operation, so that the regeneration area (12) of the adsorption element (10) is regenerated. After that, it is discharged outside (23).

  On the other hand, the indoor air flowing into the circulation passage (18) undergoes a state change as shown from the state point 1C to the state point 4C in FIG. Specifically, the indoor air at the state point 1C flowing into the circulation passage (18) is deodorized and dehumidified in the adsorption region (11) of the adsorption element (10). At this time, it is heated by the heat of adsorption, the temperature rises, and a state 2C is obtained. Thereafter, this air is heated by the indoor heat exchanger (14), undergoes a sensible heat change, and enters the state of state point 3C.

  The air at the state point 3C is humidified by the moisture exchanger (31). Specifically, the water flowing inside the moisture permeable membrane of the moisture exchanger (31) has a higher water vapor partial pressure than the indoor air flowing outside the moisture permeable membrane, so the water is transferred from the water to the room air via the moisture permeable membrane. Moisture moves toward you. That is, room air is humidified. In this way, the room air represented by the state point 3C becomes the state 4C and is supplied to the room (22).

  The temperature control and humidity control in the indoor heat exchanger (14) and the water exchanger (31) are performed in the same manner as in the cooling operation. That is, it is performed by adjusting the temperature and flow rate of the water flowing through the indoor heat exchanger (14) and the water exchanger (31).

  By the way, as described above, water in the water circulation circuit (30) is discharged into the room (22) through the moisture exchanger (31), so that the amount of water in the water circulation circuit (30) gradually decreases. Therefore, in the present air conditioner (52), when the amount of water in the water circulation circuit (30) falls below a predetermined amount set in advance, the controller (43) opens the water supply solenoid valve (42) and passes through the water supply pipe (41). Water is supplied to the water circulation circuit (30). When the amount of water in the water circulation circuit (30) reaches a predetermined amount, the controller (43) closes the water supply solenoid valve (42) and ends the water supply. In this manner, the amount of water in the water circulation circuit (30) is maintained at a predetermined amount so that the moisture exchanger (31) performs stable humidification.

As described above, according to the air conditioner (52), in addition to the effects described in the form of the base technology , the following effects can be obtained.

  During the cooling operation, the room air after being dehumidified by the adsorption element (10) and cooled by the indoor heat exchanger (14) is cooled and dehumidified by the moisture exchanger (31). Therefore, the amount of dehumidification can be increased. In addition, since the moisture exchanger (31) is disposed directly below the indoor heat exchanger (14), even if drainage is generated in the indoor heat exchanger (14), the drain is transferred to the moisture exchanger (31). Dripping. The moisture dehumidified by the moisture exchanger (31) and the drain are introduced into the water circulation circuit (30) through the moisture exchanger (31), and discharged to the outside of the water circulation circuit (30) by the water supply / drainage means (38). Therefore, since the water circulation circuit (30) can be used as a drainage drain route, it is not necessary to separately provide a drain pan or a drain discharge piping system. Therefore, the configuration of the air conditioner (52) can be simplified.

  During the heating operation, the indoor air is humidified using the water in the water circulation circuit (30). This eliminates the need for a separate humidifier. In addition, since water supply in the water circulation circuit (30) is performed by the water supply / drainage means (38), it is not necessary to separately provide a humidification water supply piping system for the indoor unit. Therefore, the configuration of the air conditioner (52) can be simplified.

The water circulation circuit (30) is provided with a bypass circuit (34) in parallel with the moisture exchanger (31), and the bypass circuit (34) is provided with a flow rate adjusting valve (36). Therefore, the amount of water flowing through the moisture exchanger (31) can be adjusted by controlling the flow rate adjusting valve (36). Therefore, it is possible to precisely control the dehumidification amount or humidification amount in the moisture exchanger (31) .

<Embodiment 2>
As shown in FIG. 6 , the air conditioner (55) according to the second embodiment of the present invention replaces the moisture exchanger (31) with a humidifier cooler (60) in the air conditioner (52) of the first embodiment. It is a thing.

  The humidifier cooler (60) is connected to the water circulation circuit (30). Therefore, it is not necessary to separately provide a pipe for makeup water in the humidifying cooler (60). That is, the water circulation circuit (30) is used to supply water to the humidifier cooler (60).

Other configurations are the same as those of the first embodiment.

Next, the operation of the air conditioner (55) will be described. The circulation of water in the water circulation circuit (30) and the discharge of room air in the discharge passage (19) of the ventilation path (9) are the same as in the first embodiment. Here, the circulation of room air in the circulation passage (18) will be described.

In the cooling operation, the room air flowing into the circulation passage (18) changes from the state point 1F shown in FIG. 7 to the state point 4F. Specifically, the indoor air flowing into the circulation passage (18) from the room (22) is deodorized, dehumidified and heated when passing through the adsorption region (11) of the adsorption element (10), and from the state point 1F. It changes to the state of the state point 2F. And this air is cooled by the indoor heat exchanger (14), and it will be in the state of the state point 3F. Thereafter, the air at the state point 3F that has flowed out of the indoor heat exchanger (14) is cooled and humidified by the humidifying cooler (60) to be in the state at the state point 4F.

  On the other hand, in the heating operation, the indoor air flowing into the circulation passage (18) changes from the state point 1G to the state point 4G. Specifically, the indoor air flowing into the circulation passage (18) from the room (22) is deodorized, dehumidified and heated when passing through the adsorption region (11) of the adsorption element (10), and from the state point 1G. The state changes to the state 2G. After that, this air is heated by the indoor heat exchanger (14), and the state becomes 3G. And the air of the state point 3G which flowed out the indoor heat exchanger (14) is humidified by the humidification cooler (60), and will be in the state of the state point 4G.

As described above, according to the air conditioner (55) according to the second embodiment, during the cooling operation, even when the dehumidification amount in the adsorption region (11) of the adsorption element (10) is large, the humidifier cooler (60 ), The humidity of the air supplied to the room (22) can be easily adjusted. Further, since the air is cooled by using the latent heat of water evaporation in the humidification cooler (60), the temperature of the water in the water circulation circuit (30) can be set higher. That is, the amount of cooling by the heat source circuit (37) can be reduced. Therefore, driving efficiency can be improved.

Also in this embodiment, the amount of water in the water circulation circuit (30) decreases with humidification. However, as in the first embodiment, when the amount of water in the water circulation circuit (30) falls below a predetermined amount, water is supplied by the water supply / drainage means (38), so that the amount of water in the water circulation circuit (30) is maintained at a predetermined amount.

<Embodiment 3 >
As shown in FIG. 8 , the air conditioner (56) according to Embodiment 3 of the present invention is the same as that of the air conditioner (52) of Embodiment 1 except that the natural inlet (21, 21,...) Rather than introducing outdoor air, outdoor air is forcibly introduced from the outdoor (23) into the indoor (22) using a blower (62).

As shown in FIG. 8 , in addition to the circulation passageway (18) and the discharge passageway (19), the ventilation passageway (9) is used for inflow for introducing the outdoor (23) air into the room (22). A passage (63) is provided. The exhaust passage (19) and the inflow passage (63) have a total heat for exchanging heat between the outdoor air introduced from the outdoor (23) and the indoor air derived from the indoor (22) to recover the heat of the indoor air. An exchanger (61) is provided. The total heat exchanger (61) includes a discharge side flow path (65) for circulating outdoor air and an inflow side flow path (64) for circulating indoor air. The inflow side channel (64) is provided in the inflow passage (63). On the other hand, the discharge side channel (65) is provided upstream of the heater (13) in the discharge passage (19).

  The inflow passage (63) is provided with an inflow channel (64) of the total heat exchanger (61) and a blower (62) in order from the upstream side. The outlet of the inflow passage (63) is provided between the adsorption element (10) of the circulation passage (18) and the indoor heat exchanger (14). Therefore, the outdoor air that has flowed through the inflow passage (63) joins the indoor air that has passed through the adsorption element (10) of the circulation passage (18) with the upstream side of the indoor heat exchanger (14). It is configured.

  Therefore, this air conditioner (56) is premised on a ventilation method in which exhaust of indoor air and introduction of outdoor air are forcibly performed by a blower. That is, the air conditioner (56) is an air conditioner that performs the first type ventilation.

By the way, in the present air conditioner (56), the indoor air that has flowed out of the adsorption region (11) of the adsorption element (10) and the outdoor air that has circulated through the inflow passage (63) are merged, and the water circulation circuit (30). Temperature and humidity are adjusted by the indoor heat exchanger (14) and the moisture exchanger (31) provided. Therefore, as described in the first embodiment, the drain drain piping system and drain pan can be deleted, and the humidifying makeup water piping system can be deleted. Moreover, since the outdoor air is positively introduced into the room (22) by the blower (62), the efficiency of ventilation can be improved.

<Embodiment 4 >
As shown in FIG. 9 , the air conditioner (57) according to Embodiment 4 of the present invention is the same as the air conditioner (56) of Embodiment 3 , except that the outlet of the inflow passage (63) is connected to the circulation passage (18 ) Is provided on the upstream side of the adsorption element (10). That is, in this air conditioner (57), outdoor air that has flowed into the inflow passage (63) flows through the inflow channel (64) of the total heat exchanger (61) and then circulates from the room (22). It merges with the room air flowing into the use passage (18). The combined air is deodorized and dehumidified in the adsorption region (11) of the adsorption element (10), then flows through the indoor heat exchanger (14) and the moisture exchanger (31), and has appropriate temperature and humidity conditions. Clean air is supplied to the room (22).

  Thus, in the present air conditioner (57), the air introduced from the outdoor (23) through the inflow passage (63) is deodorized by the adsorbing element (10). Therefore, the odorous component can be removed before the outdoor air is supplied to the room (22). Therefore, the air supplied to the room (22) can be further purified.

  As described above, the present invention is useful as an air conditioner that performs temperature control, humidity control, deodorization, and ventilation.

It is a block diagram of a ventilation path. It is a whole block diagram of the air conditioning apparatus which concerns on the form of a base technology . It is an air line figure showing the state change of the indoor air in the form of a base technology . 1 is an overall configuration diagram of an air conditioner according to Embodiment 1. FIG. It is an air line figure showing the state change of the indoor air in Embodiment 1 . It is a whole block diagram of the air conditioning apparatus which concerns on Embodiment 2. FIG. FIG. 6 is an air diagram showing a change in the state of room air in the second embodiment. It is a whole block diagram of the air conditioning apparatus which concerns on Embodiment 3. FIG. It is a whole block diagram of the air conditioning apparatus which concerns on Embodiment 4. It is a block diagram of the conventional air conditioning apparatus.

Explanation of symbols

(10) Adsorption element
(13) Heater
(14) Indoor heat exchanger
(18) Circulation passage
(19) Discharge passage
(30) Water circulation circuit
(31) Moisture exchanger
(32) Pump
(36) Flow adjustment valve
(37) Heat source circuit
(38) Water supply / drainage means
(39) Drainage piping
(41) Water supply piping

Claims (14)

Some indoor air is forcibly discharged outside the room and outdoor air is introduced from the natural inlet (21, 21, ...), while other indoor air is returned to the room while adjusting the temperature and humidity of the room air. An air conditioner that performs deodorization and ventilation,
A blower (17) for discharging indoor air;
A fan (16) for circulating indoor air;
A discharge passage (19) for guiding indoor air sucked by the discharge fan (17) to the outside and a circulation passage (18) for returning indoor air sucked by the circulation fan (16) to the room. The ventilation path (9) provided,
An adsorption element for adsorbing odor and moisture, and an adsorption area (11) of the adsorption element arranged in the circulation path (18), and a regeneration area of the adsorption element arranged in the discharge path (19) A suction means (10) comprising (12);
Air heating means (13) provided upstream of the regeneration region (12) in the discharge passage (19);
An air conditioner comprising heat exchange means (14) provided in the circulation passage (18). In the air conditioning apparatus according to claim 1,
The air conditioner characterized in that the heat exchange means is a heat exchanger (14) provided in a heat pump refrigerant circuit (5). In the air conditioning apparatus according to claim 1,
The heat exchange means is a heat exchanger (14) provided in the water circulation circuit (30) through which water circulates, and cools or heats indoor air with the water,
The circulation passage (18) is provided in the water circulation circuit (30), and has a moisture exchange means provided with a moisture permeable membrane through which water in the water circulation circuit (30) flows and indoor air flows outside. 31) An air conditioner characterized by being arranged. In the air conditioning apparatus according to claim 1,
The air conditioner characterized in that the heat exchange means (14) comprises a humidifying cooler (44) for cooling and humidifying the indoor air. In the air conditioning apparatus according to claim 4,
The ventilation path (9) is provided with a sensible heat exchanger (47) for exchanging heat between room air discharged to the outside and room air supplied to the room,
The sensible heat exchanger (47) includes a circulation side heat exchange section (48) provided on the downstream side of the adsorption region (11) of the adsorption means (10) in the circulation passage (18), and a discharge passage ( 19. An air conditioner comprising: a discharge side heat exchange section (49) provided downstream of the regeneration region (12) of the adsorption means (10) in 19). An air conditioner for controlling the temperature, humidity, deodorization and ventilation of indoor air,
A water circulation circuit (30) through which water circulates;
A heat exchanger (14) provided in the water circulation circuit (30), for cooling or heating the indoor air by exchanging heat between the water in the water circulation circuit (30) and the room air;
A dehumidifying / humidifying means (31, 69) provided in the water circulation circuit (30) for moving moisture between water in the water circulation circuit (30) and room air;
An air conditioner having an adsorption element for adsorbing odor and moisture, and comprising adsorption means (10) for adsorbing odor and moisture of room air. The air conditioner according to claim 6,
The dehumidifying / humidifying means includes a moisture permeable membrane, and moves moisture between room air flowing outside the moisture permeable membrane and water of the water circulation circuit (30) flowing inside the moisture permeable membrane. An air conditioner comprising a moisture exchanger (31) for dehumidifying or humidifying the indoor air. The air conditioning apparatus according to any one of claims 3 and 7,
The air conditioner characterized in that the heat exchanger (14) is provided above the moisture exchanger (31). The air conditioning apparatus according to any one of claims 3 and 7,
The water circulation circuit (30) has a heat source (37) for cooling or heating the water in the water circulation circuit (30) so that the temperature of the water flowing through the heat exchanger (14) and the water exchanger (31) becomes a predetermined temperature. Is connected to the air conditioner. The air conditioning apparatus according to any one of claims 3 and 7,
An air conditioner characterized in that the water circulation circuit (30) is provided with water supply / drainage means (38) for supplying and draining water so that the amount of water in the water circulation circuit (30) becomes a predetermined amount. The air conditioning apparatus according to any one of claims 3 and 7,
The air conditioner characterized in that the water circulation circuit (30) is provided with a flow rate adjusting means (36) for adjusting the flow rate of the water flowing through the moisture exchanger (31). The air conditioner according to claim 6,
The air conditioner characterized in that the dehumidifying / humidifying means comprises a humidifying cooler (60) for cooling and humidifying indoor air. The air conditioner according to claim 6,
A ventilation passage (9) having a discharge passage (19) for discharging indoor air to the outside, a circulation passage (18) for returning indoor air to the room, and an inflow passage (63) for introducing outdoor air into the room; ,
A total heat exchanger (61) for exchanging heat between indoor air flowing through the discharge passage (19) and outdoor air flowing through the inflow passage (63),
The circulation passage (18) is provided with an adsorption region (11) of the adsorption element of the adsorption means (10), a heat exchanger (14), and a dehumidifying / humidifying means (31, 60) in order from the upstream side. ,
The discharge passage (19) includes, in order from the upstream side, a discharge side flow path (65) of the total heat exchanger (61), a heating means (13) for heating room air, and an adsorption means (10). A regeneration area (12) of the adsorption element is provided,
The air conditioner characterized in that an inflow channel (64) of the total heat exchanger (61) is provided in the inflow passage (63). The air conditioner according to claim 13,
The air conditioner characterized in that the outlet of the inflow passage (63) is provided upstream of the adsorption region (11) of the adsorption element of the adsorption means (10) in the circulation passage (18).

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