JP2006284078A - Humidity adjusting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve comfortableness of a humidity adjusting device capable of switching flow of low temperature water and flow of air alternately. <P>SOLUTION: Flow of water and flow of air are switched to switch into a condition in which first air is dehumidified by a first absorbed heat exchanger 32 in which cold water flows and second air is humidified by a second absorbed heat exchanger 42 in which hot water flows and a condition in which the first air is dehumidified by the second absorbed heat exchanger 42 in which cold water flows and the second air is humidified by the first absorbed heat exchanger 32 in which hot water flows. For example, in a case of cooling dehumidifying operation, only flow of cold water is switched and then flow of air is switched after predetermined time elapses. Consequently, since the absorbed heat exchangers 32, 42 in which the second air flows are cooled by cold water, the first air is not heated and is supplied into an indoor part after switching flow of air. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a humidity control apparatus, and particularly relates to a measure for improving the comfort of a humidity control apparatus that has a water circuit and performs a batch-type operation.

  Conventionally, a humidity control apparatus that adjusts the humidity of air using an adsorbent and a refrigeration cycle is known (see, for example, Patent Document 1).

  The humidity control apparatus includes two adsorbing elements having an adsorbent and a refrigerant circuit that performs a refrigeration cycle. The humidity control apparatus includes a first operation of dehumidifying the first air by the first adsorbing element and regenerating the second adsorbing element with the second air heated by the condenser of the refrigerant circuit, and the second adsorbing element. The first air is dehumidified and the second operation of regenerating the first adsorption element with the second air heated by the condenser is performed. Then, these two operations are alternately repeated, and the dehumidified first air or the humidified second air is supplied into the room.

  On the other hand, it is considered to use an adsorption heat exchanger in which the adsorption element and the heat exchanger are integrated and an adsorbent is supported. In this case, the adsorption heat exchanger is configured as a so-called fin-and-tube heat exchanger including a large number of plate-like fins and a copper tube penetrating the fins. An adsorbent is supported on the surfaces of the fins and the copper tube. In this heat exchanger, the circulating air is dehumidified and humidified by the adsorbent, and the adsorbent is heated and cooled by the refrigerant flowing in the copper pipe.

Further, a humidity control apparatus using a water circuit through which cold water or hot water flows instead of the refrigerant circuit is conceivable. That is, the cooling and heating of the adsorbent is performed by alternately flowing cold water and hot water to the adsorption heat exchanger.
JP 2004-60954 A

  However, the conventional humidity control apparatus using the above-described water circuit has a problem that it takes time to cool or heat the adsorbent by using cold water or hot water as compared with the refrigerant. That is, for example, in the cooling and dehumidifying operation, since it takes time to cool the adsorbent, the circulating air is heated and supplied to the room by the heat remaining in the adsorption heat exchanger. In the case of heating and humidifying operation, the cooled air is supplied indoors. Therefore, there is a problem that the comfort is impaired.

  The present invention has been made in view of such points, and the object of the present invention is to provide comfort in a humidity control apparatus that alternately cools and heats the adsorbent of the adsorption heat exchanger with cold water or hot water. It is to improve.

  1st invention is equipped with the water circuit (20) to which the 1st heat exchanger (32) and the 2nd heat exchanger (42) which have the adsorption agent which can adsorb | suck and desorb water | moisture content are connected, and a cold water and a warm water flow. The first heat exchanger (32) through which the cold water flows dehumidifies the first air, and the second heat exchanger (42) through which the hot water flows humidifies the second air, and the second heat exchange through which the cold water flows. A humidity control device that switches between water flow and air flow so that the first air is dehumidified by the air conditioner (42) and the second heat is switched by the first heat exchanger (32) through which the hot water flows. It is said. In the present invention, the air flow is switched a predetermined time after switching the flow of at least one of the cold water and the hot water.

  In the above invention, in the first heat exchanger (32) or the second heat exchanger (42) through which the cold water flows, the moisture in the first air is adsorbed by the adsorbent, and the adsorbent and the first water are circulated by the circulating cold water. 1 air is cooled. On the other hand, in the second heat exchanger (42) or the first heat exchanger (32) through which the hot water flows, the moisture desorbed from the adsorbent is released into the second air, and the adsorbent and the second water are circulated by the circulating hot water. Air is heated. The first air is supplied indoors during the cooling and dehumidifying operation, and the second air is supplied indoors during the heating and humidifying operation.

  Here, for example, in the case of the cooling and dehumidifying operation, since the air flow is switched after a predetermined time after switching only the cold water or the flow of the cold water and the hot water, during the predetermined time, the heat exchanger (32, 42) is previously cooled with cold water. Accordingly, the first air passing through the heat exchanger (32, 42) is not heated after the air flow is switched. Thereby, warm air is not supplied indoors.

  On the other hand, in the case of heating and humidifying operation, the air flow is switched after a predetermined time after switching only the hot water or the flow of hot water and cold water, so that the heat exchanger (32, 42) cooled by the cold water during the predetermined time Is heated by hot water. Therefore, the second air passing through the heat exchanger (32, 42) is not cooled after the air flow is switched. Thereby, cold air is not supplied indoors.

  Moreover, 2nd invention is equipped with the water circuit (20) to which a 1st heat exchanger (32) and 2nd heat exchanger (42) which have the adsorption agent which can adsorb | suck and desorb | suck water | moisture content are connected, and cold water flows through, The first heat exchanger (32) through which the cold water flows dehumidifies the first air and the second heat exchanger (42) humidifies the second air, and the second heat exchanger (42) through which the cold water flows. And a humidity control device that switches between a cold water flow and an air flow so as to switch to a state in which the first air is dehumidified and the second heat is humidified by the first heat exchanger (32). In the present invention, the air flow is switched after a predetermined time from switching the cold water flow.

  In the above invention, in the first heat exchanger (32) or the second heat exchanger (42) through which the cold water flows, the moisture in the first air is adsorbed by the adsorbent, and the adsorbent and the first water are circulated by the circulating cold water. 1 air is cooled. On the other hand, moisture desorbed from the adsorbent is released into the second air in the second heat exchanger (42) or the first heat exchanger (32) in which no cold water flows. The first air is supplied indoors during the cooling and dehumidifying operation, and the second air is supplied indoors during the heating and humidifying operation.

  Here, in the cooling and dehumidifying operation, since the air flow is switched after a predetermined time after switching the flow of the cold water, the heat exchanger (32, 42) is cooled in advance by the cold water during the predetermined time. Accordingly, the first air passing through the heat exchanger (32, 42) is not heated after the air flow is switched. Thereby, warm air is not supplied indoors.

  Moreover, 3rd invention is equipped with the water circuit (20) in which the 1st heat exchanger (32) and the 2nd heat exchanger (42) which have the adsorption agent which can adsorb | suck and desorb water | moisture content are connected, and a warm water flows through, The first heat exchanger (32) through which the warm water flows humidifies the second air, and the second heat exchanger (42) dehumidifies the first air, and the second heat exchanger (42) through which the warm water flows. And a humidity control apparatus that switches between the hot water flow and the air flow so as to switch to a state in which the first air is dehumidified by the first heat exchanger (32). In the present invention, the air flow is switched after a predetermined time from switching the hot water flow.

  In said invention, the water | moisture content in 1st air is adsorb | sucked by adsorption agent in the 1st heat exchanger (32) or the 2nd heat exchanger (42) in which warm water does not flow. On the other hand, in the second heat exchanger (42) or the first heat exchanger (32) through which the hot water flows, the moisture desorbed from the adsorbent is released into the second air, and the adsorbent and the second water are circulated by the circulating hot water. Air is heated. The first air is supplied indoors during the cooling and dehumidifying operation, and the second air is supplied indoors during the heating and humidifying operation.

  Here, in the heating and humidifying operation, since the air flow is switched after a predetermined time after switching the flow of the hot water, the heat exchanger (32, 42) is heated by the hot water in advance during the predetermined time. Therefore, the second air passing through the heat exchanger (32, 42) is not cooled after the air flow is switched. Thereby, cold air is not supplied indoors.

  In a fourth aspect of the present invention, in the first aspect, during the dehumidifying operation for supplying the dehumidified first air to the user side, the hot water is supplied for a predetermined time from the switching of the cold water flow to the switching of the air flow. Is switched to an intermediate state in which the flow to the first heat exchanger (32) and the second heat exchanger (42) is blocked.

  In the above invention, in the intermediate state, since the hot water does not flow through the heat exchanger (32, 42) through which the first air flows, the first air is not heated. Therefore, warm air is not supplied indoors even in the intermediate state.

  Further, a fifth aspect of the present invention is that in the first aspect, in the humidifying operation for supplying the humidified second air to the user side, the cold water is switched for a predetermined time from the switching of the hot water flow to the switching of the air flow. Is switched to an intermediate state in which the flow to the first heat exchanger (32) and the second heat exchanger (42) is blocked.

  In the above invention, since the cold water does not flow through the heat exchanger (32, 42) through which the second air flows in the intermediate state, the second air is not cooled. Therefore, cold air is not supplied indoors even in the intermediate state.

  In addition, in a sixth aspect based on the fourth aspect, the water circuit (20) causes the hot water to flow bypassing the first heat exchanger (32) and the second heat exchanger (42) during the intermediate state. A bypass passage (36) is provided.

  In the above invention, in the intermediate state, warm water flows through the bypass passage (36) and bypasses the heat exchanger (32, 42), so that the flow of warm water to the heat exchanger (32, 42) is reliably prevented. The Therefore, it is possible to reliably prevent warm air from being supplied into the room in the intermediate state.

  In a seventh aspect based on the fifth aspect, the water circuit (20) causes the cold water to flow bypassing the first heat exchanger (32) and the second heat exchanger (42) in the intermediate state. A bypass passage (36) is provided.

  In the above invention, in the intermediate state, since the cold water flows through the bypass passage (36) and bypasses the heat exchanger (32, 42), the flow of cold water to the heat exchanger (32, 42) is surely prevented. The Therefore, cold air can be reliably prevented from being supplied into the room in the intermediate state.

  Therefore, according to the present invention, in the humidity control apparatus (10) having the water circuit (20) through which the cold water and the hot water flow, the air flow is switched after a predetermined time after switching the flow of at least one of the cold water and the hot water. Therefore, the heat exchanger (32, 42) can be cooled or heated in advance. Therefore, the first air can be supplied to the room without heating during the cooling and dehumidifying operation, and the second air can be supplied to the room without cooling during the heating and humidifying operation. Thereby, comfort can be improved.

  According to the second invention, in the humidity control apparatus (10) having the water circuit (20) through which the cold water flows, the air flow is switched after a predetermined time since the flow of the cold water is switched. The heat exchanger (32, 42) through which air flows can be cooled. Therefore, the first air can be supplied indoors without heating during the cooling and dehumidifying operation. Thereby, comfort can be improved.

  According to the third invention, in the humidity control apparatus (10) having the water circuit (20) through which the hot water flows, the air flow is switched after a predetermined time since the flow of the hot water is switched. The heat exchanger (32, 42) through which air flows can be heated. Therefore, the second air can be supplied indoors without cooling during the cooling and dehumidifying operation. Thereby, comfort can be improved.

  According to the fourth aspect of the present invention, in the dehumidifying operation, the hot water is not allowed to flow into any of the heat exchangers (32, 42) in the intermediate state, so the first air is not heated in the intermediate state. Can be supplied indoors. Therefore, the comfort is further improved.

  According to the fifth aspect of the invention, in the humidifying operation, since the cold water is not allowed to flow to any of the heat exchangers (32, 42) in the intermediate state, the second air is not cooled even in the intermediate state. Can be supplied indoors. Therefore, the comfort is further improved.

  Further, according to the sixth or seventh invention, in the intermediate state, the bypass passage (36) through which the hot water or the cold water flows bypassing the heat exchanger (32, 42) is provided. The first air can be reliably supplied into the room without being heated and the second air can be cooled without being cooled.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Embodiment 1 of the Invention
As shown in FIG. 1, the humidity control apparatus (10) of this embodiment performs dehumidification and humidification of indoor air. The humidity control apparatus (10) includes a water circuit (20) through which cold water and hot water flow, and an air passage (not shown) through which the first air and the second air are taken in and circulated.

  The water circuit (20) includes a first inlet (21) and a second inlet (23) through which cold / hot water is introduced, and a first outlet (22) and a second outlet (24) through which the cold / hot water is discharged. Is provided.

  The water circuit (20) includes a first passage (30) and a second passage (40). The first passage (30) is a passage connecting the first inlet (21) and the first outlet (22), and the second passage (40) is the second inlet (23) and the second outlet (24). It is a passage connecting

  The first passage (30) is provided with an inlet side three-way valve (31), a first adsorption heat exchanger (32), and an outlet side three-way valve (33) in this order from the first inlet (21) side. The second passage (40) is provided with an inlet side three-way valve (41), a second adsorption heat exchanger (42), and an outlet side three-way valve (43) in this order from the second inlet (23) side.

  An inlet side branch passage (34, 44) and an outlet side branch passage (35, 45) are connected to the first passage (30) and the second passage (40), respectively. The inlet-side branch passage (34) of the first passage (30) has one end connected to the inlet-side three-way valve (31) of the first passage (30) and the other end connected to the inlet-side three-way in the second passage (40). It is connected between the valve (41) and the second adsorption heat exchanger (42). One end of the outlet side branch passage (35) of the first passage (30) is connected between the first adsorption heat exchanger (32) and the outlet side three-way valve (33) in the first passage (30), The other end is connected to the outlet side three-way valve (43) of the second passage (40). The inlet-side branch passage (44) of the second passage (40) has one end connected to the inlet-side three-way valve (41) of the second passage (40) and the other end connected to the inlet-side three-way in the first passage (30). It is connected between the valve (31) and the first adsorption heat exchanger (32). One end of the outlet side branch passage (45) of the second passage (40) is connected between the second adsorption heat exchanger (42) and the outlet side three-way valve (43) in the second passage (40), The other end is connected to the outlet side three-way valve (33) of the first passage (30).

  The inlet-side three-way valve (31, 41) and the outlet-side three-way valve (33, 43) constitute cold water and hot water flow path switching means. The inlet side three-way valve (31) of the first passage (30) is in a first state where the first inlet (21) side communicates with the upstream side of the first adsorption heat exchanger (32) (shown by a solid line in FIG. 1). State) and a second state (state indicated by a broken line in FIG. 1) communicating with the inlet side branch passage (34). The outlet side three-way valve (33) of the first passage (30) is in a first state where the first outlet (22) side communicates with the downstream side of the first adsorption heat exchanger (32) (shown by a solid line in FIG. 1). State) and a second state (state indicated by a broken line in FIG. 1) communicating with the outlet side branch passage (45). The inlet-side three-way valve (41) of the second passage (40) is in a first state where the second inlet (23) side communicates with the upstream side of the second adsorption heat exchanger (42) (shown by a solid line in FIG. 1). State) and a second state (state indicated by a broken line in FIG. 1) communicating with the inlet side branch passage (44). The outlet side three-way valve (43) of the second passage (40) is in a first state where the second outlet (24) side communicates with the downstream side of the second adsorption heat exchanger (42) (shown by a solid line in FIG. 1). State) and a second state (state indicated by a broken line in FIG. 1) communicating with the outlet side branch passage (35).

  The first adsorption heat exchanger (32) and the second adsorption heat exchanger (42) are each constituted by a cross fin type fin-and-tube heat exchanger. That is, the first adsorption heat exchanger (32) and the second adsorption heat exchanger (42) include a large number of aluminum fins formed in a rectangular plate shape and a copper heat transfer tube penetrating the fins. I have.

  An adsorbent capable of adsorbing and desorbing moisture is supported on the outer surfaces of the fins and the heat transfer tubes together with a binder as an adhesive by dip molding (dip molding). The adsorbent has functionalities such as zeolite, silica gel, activated carbon, hydrophilic or water-absorbing organic polymer material, ion exchange resin material having carboxylic acid group or sulfonic acid group, temperature sensitive polymer, etc. A polymer material or the like is used. The first adsorption heat exchanger (32) constitutes a first heat exchanger, and the second adsorption heat exchanger (42) constitutes a second heat exchanger.

  The water circuit (20) humidifies the second air with a first adsorption heat exchanger (32) through which hot water flows, and dehumidifies the first air with a second adsorption heat exchanger (42) through which cold water flows. A cycle operation and a second cycle operation in which the second air is humidified by the second adsorption heat exchanger (42) through which hot water flows and the first air is dehumidified by the first adsorption heat exchanger (32) in which cold water flows. The flow of cold / hot water and the flow of air are switched to repeat alternately.

  Specifically, in the first cycle operation, moisture in the first air is adsorbed by the adsorbent in the second adsorption heat exchanger (42), and at the same time, the first air and the adsorbent are cooled by cold water. On the other hand, water is released from the adsorbent into the second air by the first adsorption heat exchanger (32), and at the same time, the second air and the adsorbent are heated by the hot water. Further, in the second cycle operation, the moisture of the first air is adsorbed by the adsorbent in the first adsorption heat exchanger (32), and at the same time, the first air and the adsorbent are cooled by the cold water, In the second adsorption heat exchanger (42), moisture is released from the adsorbent into the second air, and at the same time, the second air and the adsorbent are heated by the hot water.

  The humidity control apparatus (10) is configured to switch between a cooling and dehumidifying operation and a heating and humidifying operation. During the cooling and dehumidifying operation, hot water is introduced from the first inlet (21) and cold water is introduced from the second inlet (23). During heating and humidifying operation, hot water is introduced from the second inlet (23) and the cold water is first supplied. The flow of cold water and hot water is switched so as to be introduced from one inlet (21). The humidity control apparatus (10) supplies the first air to the room and discharges the second air to the room during the cooling and dehumidifying operation, and supplies the second air to the room and the first air during the heating and humidifying operation. The air flow is switched so that the air is discharged outside the room.

  The first passage (30) is provided with a bypass passage (36) having a bypass three-way valve (37). One end of the bypass passage (36) is connected to the first inlet (21) side from the inlet side three-way valve (31), and the other end is closer to the first outlet (22) side than the outlet side three-way valve (33). It is connected. The bypass three-way valve (37) is in a second state in which hot water or cold water flowing from the first inlet (21) to the bypass passage (36) flows toward the first outlet (22) as it is (a broken line in FIG. 1). ) And a first state (a state indicated by a solid line in FIG. 1) returning to the first passage (30) again. That is, the bypass passage (36) bypasses the first adsorption heat exchanger (32) and the second adsorption heat exchanger (42) with the cold water or the hot water introduced from the first inlet (21), and continues to the first. It is configured so that it can flow to the outlet (22).

  Further, as a feature of the present invention, the humidity control apparatus (10) switches the air flow after a predetermined time from switching the flow of cold water or hot water when switching between the first cycle operation and the second cycle operation. It is configured.

  For example, in the cooling and dehumidifying operation, the air flow is switched after a predetermined time has elapsed after switching only the flow of cold water. In the case of the heating and humidifying operation, the air flow is switched after a predetermined time has elapsed after switching only the flow of hot water. During the above-mentioned predetermined time, in the cooling and dehumidifying operation, the hot water switches to an intermediate state in which the bypass passage (36) flows, and in the heating and humidifying operation, the cold water switches to an intermediate state in which the cold water flows through the bypass passage (36). That is, this intermediate state is configured to prevent hot water from flowing into the first adsorption heat exchanger (32) and the second adsorption heat exchanger (42) during the cooling and dehumidifying operation and cold water during the heating and humidifying operation. Yes.

-Driving action-
The operation of the humidity control apparatus (10) will be described. In the humidity control apparatus (10), switching between the cooling and dehumidifying operation and the heating and humidifying operation is possible.

  First, the cooling and dehumidifying operation will be described. This cooling and dehumidifying operation is an operation for supplying the dehumidified first air to the room. Here, the switching operation from the first cycle operation to the second cycle operation will be mainly described with reference to FIGS.

  As shown in FIG. 1, the water circuit (20) is switched to perform the first cycle operation. Specifically, each inlet-side three-way valve (31, 41) and each outlet-side three-way valve (33, 43) are set to the first state, and the bypass three-way valve (37) is set to the first state. In addition, the humidity control apparatus (10) has the outdoor air (OA) flowing as the first air to the second adsorption heat exchanger (42), and the indoor air (RA) as the second air. Air flow is set to flow to 32). Then, hot water is introduced from the first inlet (21), and cold water is introduced from the second inlet (23).

  First, the hot water introduced from the first inlet (21) flows to the first adsorption heat exchanger (32) through the inlet-side three-way valve (31). In the first adsorption heat exchanger (32), the adsorbent and the second air are heated by the hot water, and at this time, moisture is released from the adsorbent to the second air to humidify the second air. Thereafter, the second air is exhausted to the outside as exhaust air (EA). The hot water exiting the first adsorption heat exchanger (32) is discharged from the first outlet (22) through the outlet side three-way valve (33).

  On the other hand, the cold water introduced from the second inlet (23) flows to the second adsorption heat exchanger (42) through the inlet-side three-way valve (31). In the second adsorption heat exchanger (42), the adsorbent and the first air are cooled by cold water. At this time, moisture in the first air is adsorbed by the adsorbent, and the first air is dehumidified. Thereafter, the first air is supplied into the room as supply air (SA). The cold water that has exited the second adsorption heat exchanger (42) passes through the outlet side three-way valve (43) and is discharged from the second outlet (24). That is, in this first cycle operation, hot water flows only through the first passage (30), and cold water flows through only the second passage (40).

  When the first cycle operation described above is performed for a predetermined time, the water circuit (20) has a bypass three-way valve (37), an outlet-side three-way valve (33) of the first passage (30), and a second passage (40). The outlet side three-way valve (43) and the inlet side three-way valve (41) of the second passage (40) are sequentially switched to the second state, thereby switching to the intermediate state.

  First, as shown in FIG. 2, when the bypass three-way valve (37) is switched to the second state, a part of the hot water introduced from the first inlet (21) is transferred to the first adsorption heat exchanger (32). The remaining portion branches from the first passage (30) to the bypass passage (36) and flows to the first outlet (22). That is, in this state, two routes from the first inlet (21) to the first outlet (22) of the hot water are secured.

  Subsequently, as shown in FIG. 3, when the outlet side three-way valve (33) of the first passage (30) is switched to the second state, the entire amount of hot water introduced from the first inlet (21) is reduced to the bypass passage ( 36) to the first outlet (22). On the other hand, a part of the cold water exiting the second adsorption heat exchanger (42) flows to the second outlet (24), and the rest branches from the second passage (40) to the outlet side branch passage (45). It flows to the first outlet (22) through the outlet side three-way valve (33) of the one passage (30). In this way, by switching the bypass three-way valve (37) before switching the outlet-side three-way valve (33) of the first passage (30), the hot water flows through the first outlet ( To 22). Therefore, it is possible to prevent the pipe or the like from being ruptured when water, which is an incompressible fluid, is confined in the pipe.

  Subsequently, as shown in FIG. 4, when the outlet side three-way valve (43) of the second passage (40) is switched to the second state, a part of the hot water introduced from the first inlet (21) is first. After passing through the adsorption heat exchanger (32), it flows to the second outlet (24) via the outlet branch passage (35), and the remainder branches from the first passage (30) to the bypass passage (36). It flows to the 1st exit (22). That is, in this state, hot water that has passed through the first adsorption heat exchanger (32) flows to the second outlet (24), and cold water that has passed through the second adsorption heat exchanger (42) to the first outlet (22). Flowing. Thus, since the outlet side three-way valve (43) of the second passage (40) is switched after the outlet side three-way valve (33) of the first passage (30) is switched, there is no possibility that the flow of cold water is blocked. . That is, when switching both the outlet side three-way valves (33, 43) at the same time, for example, if the outlet side three-way valve (33) of the first passage (30) is not switched due to malfunction or the like, the flow of cold water is blocked. However, even if the outlet side three-way valve (33, 43) to be switched is caused to malfunction, the cold water must be discharged from the first outlet (22) or the second outlet (24). Can be flowed to.

  Then, as shown in FIG. 5, when the inlet side three-way valve (41) of the second passage (40) is switched to the second state, the water circuit (20) is switched to the intermediate state. Thereby, the cold water introduced from the second inlet (23) flows to the first passage (30) through the inlet-side branch passage (44), and then the hot water introduced from the first inlet (21) And flow to the first adsorption heat exchanger (32). On the other hand, the second adsorption heat exchanger (42) is in a state where neither cold water nor hot water is circulating. Also in this case, since the outlet side three-way valve (33) of the first passage (30) is switched in advance, even if the inlet side three-way valve (41) of the second passage (40) causes switching failure, Flows reliably to the first outlet (22), so that there is no possibility that the flow of cold water is interrupted and the piping or the like is ruptured.

  In this intermediate state, the first adsorption heat exchanger (32) retains the heat generated by the hot water that has been circulated until then, but is gradually cooled by the flow of cold water. At that time, the second air is cooled and discharged outside the room. On the other hand, in the second adsorption heat exchanger (42), since the cold heat from the cold water that has been circulated remains, the first air is cooled by the remaining cold heat and supplied to the room. Furthermore, since warm water does not flow in the second adsorption heat exchanger (42), the first air is reliably cooled without being heated by the warm water. That is, in this intermediate state, only the flow of cold water from the first cycle operation is switched to the next second cycle operation.

  As shown in FIG. 6, when a predetermined time has elapsed after the water circuit (20) is switched to the intermediate state, the inlet side three-way valve (31) of the first passage (30) is switched to the second state. The air flow is switched and the second cycle operation is performed. In other words, the outdoor air (OA) as the first air flows to the first adsorption heat exchanger (32), and the indoor air (RA) as the second air flows to the second adsorption heat exchanger (42). The flow is switched.

  In the second adsorption heat exchanger (42), the adsorbent and the second air are heated by the hot water, and at this time, the second air is humidified and discharged to the outside as exhaust air (EA). On the other hand, in the first adsorption heat exchanger (32), the adsorbent and the first air are cooled by cold water, and at this time, the first air is dehumidified and supplied to the room as supply air (SA). Here, the first adsorption heat exchanger (32) heated in the first cycle operation is cooled by cold water during a predetermined time in an intermediate state. Therefore, after the switching, the first air is not heated and supplied to the room by the first adsorption heat exchanger (32), so that the comfort in the room is not impaired. Then, as shown in FIG. 7, the bypass three-way valve (37) is switched to the first state, and the switching to the second cycle operation is completed.

  Switching from the second cycle operation to the first cycle operation is performed in the same manner as the switching described above. That is, when the second cycle operation is performed for a predetermined time, the water circuit (20) has a bypass three-way valve (37), an outlet side three-way valve (33) of the first passage (30), and a second passage (40). The outlet side three-way valve (43) and the inlet side three-way valve (41) of the second passage (40) are sequentially switched to the first state and switched to the intermediate state. In this intermediate state, cold water and hot water flow through the second adsorption heat exchanger (42) to the second outlet (24). Thereafter, the water circuit (20) switches the inlet side three-way valve (31) of the first passage (30) to the first state when the predetermined time has passed in the intermediate state, and the first air exchanges the second adsorption heat. The air flow is switched so that the second air flows to the first adsorption heat exchanger (32). Thereafter, the bypass three-way valve (37) is switched to the first state, and the switching to the first cycle operation is completed. Thus, the first cycle operation and the second cycle operation are alternately switched, and the cooling and dehumidifying operation is continuously performed.

  Next, the heating and humidifying operation will be described. This heating / humidifying operation is an operation for supplying humidified second air to the room. That is, in this operation, indoor air (RA) is taken in as the first air and outdoor air (OA) is taken in as the second air, while cold water is introduced from the first inlet (21) and hot water is the second. It is introduced from the inlet (23). The switching between the first cycle operation and the second cycle operation is the same as the switching operation during the cooling and dehumidifying operation described above.

  For example, when switching from the first cycle operation to the second cycle operation, the bypass three-way valve (37), the outlet side three-way valve (33) of the first passage (30), and the outlet side three-way valve of the second passage (40) (43), the inlet side three-way valve (41) of the second passage (40) is sequentially switched to the second state and switched to the intermediate state. In this intermediate state, only the flow of hot water is switched, and the first adsorption heat exchanger (32) is heated by the hot water. Thereafter, when the predetermined time has elapsed, the operation is switched to the second cycle operation. Therefore, the second air is not cooled and supplied to the room by the first adsorption heat exchanger (32) immediately after the cycle is switched, so there is no possibility of impairing the comfort in the room. The same applies when switching from the second cycle operation to the first cycle operation.

  In the present embodiment, an on-off valve that is a two-way valve may be used instead of the bypass three-way valve (37). In this case, the two-way valve is set to a closed state during the first cycle operation and the second cycle operation, and the two-way valve is set to an open state during switching between the first cycle operation and the second cycle operation. That is, the two-way valve is closed in two directions so that the closed state of the two-way valve corresponds to the first state of the bypass three-way valve (37) and the open state of the two-way valve corresponds to the second state of the bypass three-way valve (37). Switch the valve.

-Effect of Embodiment 1-
As described above, in the cooling and dehumidifying operation, the air flow is switched after switching the intermediate state for switching only the flow of the cold water for a predetermined time before switching between the first cycle operation and the second cycle operation. The adsorption heat exchanger (32, 42) that has humidified the second air until then can be cooled with cold water. Accordingly, immediately after the air flow is switched, the first air is not heated by the adsorption heat exchanger (32, 42) and supplied to the room, so that comfort can be improved.

  Further, since the first air is cooled by the cold heat remaining in the adsorption heat exchanger (32, 42) in the intermediate state, comfort is not impaired even in the intermediate state. Furthermore, since warm water does not flow to any of the adsorption heat exchangers (32, 42) in the intermediate state, the first air can be reliably cooled and supplied to the room. As a result, comfort can be further improved.

  In addition, the above-described operational effects can be similarly applied to the heating and humidifying operation. That is, the second air is not cooled by the adsorption heat exchanger (32, 42) and supplied into the room immediately after the intermediate state and the air flow switching.

  When switching to the intermediate state, the bypass three-way valve (37), the outlet side three-way valve (33) of the first passage (30), the outlet side three-way valve (43) of the second passage (40), the second Since the three-way valve (41) on the inlet side of the passage (40) is switched sequentially instead of simultaneously, the flow of cold / hot water is interrupted even if one of the valves does not switch due to malfunction etc. Cold / warm water can be allowed to flow to either outlet without any problem. Thereby, since water which is an incompressible fluid is not confined in piping, it can prevent that piping etc. burst.

-Modification of Embodiment 1-
In this modification, instead of switching the flow of cold water or hot water only in the intermediate state in the first embodiment, the flow of both cold water and hot water is switched simultaneously. Specifically, for example, the bypass three-way valve (37), the outlet-side three-way valve (33) of the first passage (30), and the outlet-side three-way valve (43) of the second passage (40) from the first cycle operation state. Are sequentially switched to the second state, the inlet side three-way valve (41) of the second passage (40) is switched to the second state, and at the same time the inlet side three-way valve (31) of the first passage (30) is in the second state. Switch to.

  In this case, in the intermediate state of the cooling and dehumidifying operation, the adsorption heat exchanger (32, 42) through which the first air flows is gradually heated by the hot water, but the first air is heated so much because the cold heat remains. Without being supplied to the room. That is, the first air is not heated more than when the air flow is switched simultaneously with the flow of the cold / hot water. The same applies to the heating and humidifying operation.

<< Embodiment 2 of the Invention >>
In the humidity control apparatus (10) of the second embodiment, the first embodiment uses various three-way valves (31, 33, 41...) As the flow path switching means of the water circuit (20). A plurality of two-way valves are used.

  As shown in FIG. 8, the first passage (30) includes, in order from the first inlet (21) side, a first two-way valve (3a), a first adsorption heat exchanger (32), and a second two-way valve ( 3b) is provided. The second passage (40) is provided with a first two-way valve (4a), a second adsorption heat exchanger (42), and a second two-way valve (4b) in order from the second inlet (23) side. Yes.

  An inlet side branch passage (34, 44) and an outlet side branch passage (35, 45) are connected to the first passage (30) and the second passage (40), respectively. The inlet side branch passage (34) of the first passage (30) is provided with a third two-way valve (3c) in the middle, and one end is upstream of the first two-way valve (3a) in the first passage (30). The other end of the second passage (40) is connected between the first two-way valve (4a) and the second adsorption heat exchanger (42). The outlet side branch passage (35) of the first passage (30) is provided with a fourth two-way valve (3d) in the middle, and one end of the first passage (30) is connected to the first adsorption heat exchanger (32) in the first passage (30). It is connected between the second two-way valve (3b) and the other end is connected to the downstream side of the second two-way valve (4b) in the second passage (40). The inlet side branch passage (44) of the second passage (40) is provided with a third two-way valve (4c) in the middle, and one end is upstream of the first two-way valve (4a) in the second passage (40). The other end of the first passage (30) is connected between the first two-way valve (3a) and the first adsorption heat exchanger (32). The outlet side branch passage (45) of the second passage (40) is provided with a fourth two-way valve (4d) in the middle, and one end of the second passage (40) is connected to the second adsorption heat exchanger (42) in the second passage (40). The other end is connected to the downstream side of the second two-way valve (3b) in the first passage (30). That is, eight two-way valves are used in the water circuit (20).

  Next, the operation of the cooling and dehumidifying operation in the present embodiment will be described with reference to FIGS.

  First, as shown in FIG. 8, the water circuit (20) is switched to perform the first cycle operation. Specifically, each first two-way valve (3a, 4a) and each second two-way valve (3b, 4b) are set in an open state, and each third two-way valve (3c, 4c) and each fourth second valve are set. The direction valves (3d, 4d) are set to the closed state. The air flow and the cold / hot water inlet are the same as those in the first embodiment. In this state, the hot water introduced from the first inlet (21) heats the adsorbent and the second air in the first adsorption heat exchanger (32) and flows to the first outlet (22). At that time, humidification of the second air is performed. The cold water introduced from the second inlet (23) cools the adsorbent and the first air in the second adsorption heat exchanger (42) and flows to the second outlet (24). At that time, the first air is dehumidified.

  In the water circuit (20), when the first cycle operation is performed for a predetermined time, the fourth two-way valves (3d, 4d) are switched to the open state as shown in FIG. In this state, a part of the hot water exiting the first adsorption heat exchanger (32) flows to the first outlet (22), and the rest passes through the outlet side branch passage (35) to the second outlet (24). Flowing. Further, a part of the cold water exiting the second adsorption heat exchanger (42) merges with the hot water in the first passage (30) and flows to the second outlet (24), and the rest is the outlet branch passage (45 ) And the warm water in the first passage (30) and flow to the first outlet (22). That is, in this state, hot water and cold water are discharged from the two outlets.

  Subsequently, in the water circuit (20), as shown in FIG. 10, each second two-way valve (3b, 4b) is switched to a closed state. In this state, the total amount of hot water exiting the first adsorption heat exchanger (32) flows to the second outlet (24), and the total amount of cold water exiting the second adsorption heat exchanger (42) is the first outlet (22 ). Here, even if each second two-way valve (3b, 4b) malfunctions, the flow of hot water and cold water is not interrupted.

  Subsequently, as shown in FIG. 11, the water circuit (20) is configured such that the first two-way valve (4a) of the second passage (40) is switched to the closed state and the inlet side of the second passage (40). The third two-way valve (4c) of the branch passage (44) is switched to the open state and switched to the intermediate state. In this intermediate state, the cold water introduced from the second inlet (23) flows into the first passage (30) through the inlet side branch passage (44) and joins the hot water, and then the first adsorption heat exchanger (32). To flow. The first adsorption heat exchanger (32) is gradually cooled by adding a flow of cold water. On the other hand, neither hot water nor cold water flows through the second adsorption heat exchanger (42). Accordingly, the first air is cooled by the cold heat remaining in the second adsorption heat exchanger (42). That is, in this intermediate state, only the flow of cold water is switched as in the first embodiment.

  As shown in FIG. 12, the water circuit (20) has a third two-way valve (4c) in the first passage (30) inlet side branch passage (44) after a predetermined time has elapsed since switching to the intermediate state. Are opened, the first two-way valve (3a) of the first passage (30) is switched to the closed state, and the air flow is switched to perform the second cycle operation. In this second cycle operation, the hot water introduced from the first inlet (21) heats the adsorbent and the second air in the second adsorption heat exchanger (42) and flows to the first outlet (22). At that time, humidification of the second air is performed. The cold water introduced from the second inlet (23) cools the adsorbent and the first air in the first adsorption heat exchanger (32) and flows to the second outlet (24). At that time, the first air is dehumidified. Here, since the first adsorption heat exchanger (32) heated in the first cycle operation is cooled by the cold water during the predetermined time in the intermediate state as in the first embodiment, the first air is heated. Instead, it is cooled and supplied to the room. Therefore, indoor comfort can be improved.

  Although the switching from the second cycle operation to the first cycle operation is not shown, each second two-way valve (3b, 4b) is opened and each third two-way valve (3c, 4c) is closed. After switching in order, the first two-way valve (4a) of the second passage (40) is opened, and the third two-way valve (4c) of the inlet side branch passage (44) of the second passage (40) is opened. Each is switched to the closed state and switched to the intermediate state. In this intermediate state, cold water and hot water flow through the second adsorption heat exchanger (42) to the second outlet (24). Thereafter, the water circuit (20) enters the branch passage on the inlet side of the first passage (30) with the first two-way valve (3a) of the first passage (30) opened when a predetermined time has passed in the intermediate state. The third two-way valve (3c) of (44) is switched to the closed state, the first air flows to the second adsorption heat exchanger (42), and the second air flows to the first adsorption heat exchanger (32). The air flow is switched to flow to This completes the switching to the first cycle operation. Thus, the first cycle operation and the second cycle operation are alternately switched, and the cooling and dehumidifying operation is continuously performed.

  Next, the heating and humidifying operation will be described. In this heating / humidification operation, the indoor air (RA) is taken in as the first air and dehumidified and then discharged to the outside of the room, and the outdoor air (OA) is taken in as the second air and humidified and supplied to the room. On the other hand, cold water is introduced from the first inlet (21), and hot water is introduced from the second inlet (23). That is, for example, in the first cycle operation, the first air flows to the first adsorption heat exchanger (32) and the second air flows to the second adsorption heat exchanger (42).

  For example, when switching from the first cycle operation to the second cycle operation, the water circuit (20) is switched to the intermediate state through the same switching operation as in the above-described cooling and dehumidifying operation. In this intermediate state, only the flow of hot water is switched, and the first adsorption heat exchanger (32) is heated by the hot water. Thereafter, when the predetermined time has elapsed, the operation is switched to the second cycle operation. Therefore, the second air is heated without being cooled by the first adsorption heat exchanger (32) and supplied to the room, so that the comfort in the room is improved. The same applies when switching from the second cycle operation to the first cycle operation.

<< Embodiment 3 of the Invention >>
As shown in FIG. 13, the humidity control apparatus (10) of the third embodiment is obtained by adding a third passage (46) having an air heat exchanger (47) to the water circuit (20) of the first embodiment. It is. Specifically, the third passage (46) is provided with an air heat exchanger (47) in the middle, and one end of the third passage (46) is closer to the second inlet (23) than the inlet-side three-way valve (41) in the second passage (40). The other end of the second passage (40) is connected to the second outlet (24) side of the outlet side three-way valve (43). In addition, this figure shows the operation | movement at the time of a cooling dehumidification driving | operation.

  The air heat exchanger (47) is a sensible heat exchanger constituted by a so-called cross fin type fin-and-tube heat exchanger. In the air heat exchanger (47), cold water flows during the cooling and dehumidifying operation, and hot water flows during the heating and humidifying operation. In addition, the air heat exchanger (47) flows the first air dehumidified during the cooling and dehumidifying operation and the indoor air (RA) as the third air, while the second air humidified during the heating and humidifying operation flows and the indoor air (RA) flows. Air (RA) is configured to flow as third air. In the cooling / dehumidifying operation and the heating / humidifying operation, switching between the first cycle operation and the second cycle operation is the same as in the first embodiment.

  In the present embodiment, during the cooling and dehumidifying operation, the first air dehumidified by the first adsorption heat exchanger (32) or the second adsorption heat exchanger (42) is cooled by the cold water by the air heat exchanger (47), While being supplied indoors, the 3rd air is cooled with cold water by an air heat exchanger (47), and is supplied indoors. Therefore, the cooling capacity is improved. Further, during the heating and humidifying operation, the second air humidified by the first adsorption heat exchanger (32) or the second adsorption heat exchanger (42) is heated by hot air by the air heat exchanger (47) and supplied indoors. At the same time, the third air is heated by the hot water in the air heat exchanger (47) and supplied into the room. Therefore, the heating capacity is improved. Other configurations, operations, and effects are the same as those of the first embodiment.

  In the present embodiment, the second air and the third air are separately taken in the cooling and dehumidifying operation, and the first air and the third air are taken in separately in the heating and humidifying operation. However, the taken second air or first air is taken in separately. May be branched to flow as third air to the air heat exchanger (47).

  Moreover, the 3rd channel | path (46) which has an air heat exchanger (47) in this embodiment is applied similarly to the water circuit (20) in Embodiment 2. FIG.

-Modification of Embodiment 3-
As shown in FIG. 14, in this modification, the first air after the dehumidification is replaced with the flow of the dehumidified first air or the humidified second air to the air heat exchanger (47). One air or the second air after humidification is supplied to the room as it is. That is, in the cooling and dehumidifying operation, the dehumidified first air is supplied to the room and the third air cooled by the air heat exchanger (47) is supplied to the room. In the case of the heating and humidifying operation, the humidified second air is supplied to the room, and the third air heated by the air heat exchanger (47) is supplied to the room. Therefore, the cooling capacity and the heating capacity are improved. Other configurations, operations, and effects are the same as those of the first embodiment. In addition, the 3rd channel | path (46) which has an air heat exchanger (47) in this modification is applied similarly to the water circuit (20) in Embodiment 2.

<< Embodiment 4 of the Invention >>
As shown in FIGS. 15 and 16, the humidity controller (10) of the fourth embodiment is configured as a circuit in which the water circuit (20) flows only in hot water. Specifically, the water circuit (20) includes one hot water inlet (21) and one outlet (22). And the said water circuit (20) is provided with the 1st channel | path (30) similar to Embodiment 1, and the 2nd channel | path (38) which changed the structure from the thing of Embodiment 1. FIG. The first passage (30) connects the inlet (21) and the outlet (22), and in order from the inlet (21) side, the inlet side three-way valve (31) and the first adsorption heat exchanger (32). And an outlet side three-way valve (33). The second passage (38) has a second adsorption heat exchanger (42) in the middle, and is connected to the inlet side three-way valve (31) and the outlet side three-way valve (33).

  In the water circuit (20), the hot water introduced from the inlet (21) passes through the first adsorption heat exchanger (32) by switching between the inlet side three-way valve (31) and the outlet side three-way valve (33). After the first cycle operation (state of FIG. 15) flowing to (22) and the hot water introduced from the inlet (21) flows to the second passage (38) and passes through the second adsorption heat exchanger (42), The second cycle operation (state shown in FIG. 16) flowing to the outlet (22) is alternately performed. In addition, the humidity control apparatus (10) can be switched between a cooling and dehumidifying operation and a heating and humidifying operation. 15 and 16 show the operation of the heating / humidifying operation.

  For example, in the case of heating and humidifying operation, the air flow is switched so that the second air humidified by the first adsorption heat exchanger (32) or the second adsorption heat exchanger (42) through which hot water flows is supplied to the room (FIG. 15). And FIG. 16). In the case of the cooling and dehumidifying operation, although not shown, the air flow is performed so that the first air dehumidified by the second adsorption heat exchanger (42) or the first adsorption heat exchanger (32) where hot water does not flow is supplied to the room. Switch.

  And in the case of heating / humidifying operation, the water circuit (20) is switched between the inlet side three-way valve (31) and the outlet side three-way valve (33), that is, after a predetermined time has elapsed after switching the flow of hot water. The air flow is switched. Therefore, since the first adsorption heat exchanger (32) or the second adsorption heat exchanger (42) that has dehumidified the first air during the predetermined time is preheated, after the air flow is switched, 2 Air is immediately heated and supplied into the room. Thereby, the comfort in the room is improved.

-Modification of Embodiment 4-
In this modification, as shown in FIGS. 17 and 18, the water circuit (20) of the fourth embodiment is configured as a circuit through which only hot water flows, but the water circuit (20) is configured as a circuit through which only cold water flows. Is. That is, in the water circuit (20), the cold water introduced from the inlet (21) passes through the first adsorption heat exchanger (32) by switching between the inlet side three-way valve (31) and the outlet side three-way valve (33). The first cycle operation (state of FIG. 17) flowing to the outlet (22) and the cold water introduced from the inlet (21) flowed to the second passage (38) and passed through the second adsorption heat exchanger (42). Thereafter, the second cycle operation (state shown in FIG. 18) flowing to the outlet (22) is alternately performed. In addition, the humidity control apparatus (10) can be switched between a cooling and dehumidifying operation and a heating and humidifying operation. 17 and 18 show the operation of the cooling and dehumidifying operation.

  For example, in the cooling and dehumidifying operation, the air flow is switched so that the first air dehumidified by the first adsorption heat exchanger (32) or the second adsorption heat exchanger (42) through which cold water flows is supplied to the room (FIG. 17). And FIG. 18). In addition, in the case of the heating and humidifying operation, although not shown, the air flow is performed so that the second air humidified by the second adsorption heat exchanger (42) or the first adsorption heat exchanger (32) in which cold water does not flow is supplied to the room. Switch.

  In the case of the cooling and dehumidifying operation, the water circuit (20) is switched between the inlet-side three-way valve (31) and the outlet-side three-way valve (33), that is, after a predetermined time has elapsed after switching the flow of cold water. The air flow is switched. Therefore, the first adsorption heat exchanger (32) or the second adsorption heat exchanger (42) that has humidified the second air during the predetermined time is cooled in advance, so that after the air flow is switched, One air is immediately cooled and supplied to the room. Thereby, the comfort in the room is improved.

<< Embodiment 5 of the Invention >>
As shown in FIGS. 19 and 20, the humidity control apparatus (10) of the fifth embodiment is replaced with an inlet-side three-way valve (31) and an outlet-side three-way valve (33) in the water circuit (20) of the fourth embodiment. Thus, a plurality of two-way valves are used. That is, the first passage (30) is provided with the first two-way valve (3a) and the second two-way valve (3b) on the upstream side and the downstream side of the first adsorption heat exchanger (32), respectively. . The second passage (38) is provided with a third two-way valve (3c) and a fourth two-way valve (3d) on the upstream side and the downstream side of the second adsorption heat exchanger (42), respectively. .

  In the water circuit (20), the first two-way valve (3a) and the second two-way valve (3b) are opened, and the third two-way valve (3c) and the fourth two-way valve (3d) are closed. The first two-way valve (3a) and the second two-way valve (3b) are closed, and the third two-way valve (3c) and the fourth two-way valve (3d) are opened. Switch to the state set for each. That is, the water circuit (20) has a first cycle operation (state of FIG. 19) in which hot water introduced from the inlet (21) flows to the outlet (22) through the first adsorption heat exchanger (32), The second cycle operation (state of FIG. 20) in which the hot water introduced from the inlet (21) flows to the second passage (38), passes through the second adsorption heat exchanger (42), and then flows to the outlet (22). Are performed alternately. In addition, the humidity control apparatus (10) can be switched between a cooling and dehumidifying operation and a heating and humidifying operation. 19 and 20 show the operation of the heating / humidifying operation.

  Also in this embodiment, the water circuit (20) is configured to switch the air flow after a predetermined time has elapsed since the hot water flow was switched in the heating and humidifying operation. Therefore, after the air flow is switched, the second air is immediately heated and supplied to the room. Thereby, the comfort in the room is improved.

  In addition, when the water circuit (20) is configured as a circuit in which only the cold water flows instead of the hot water, the water circuit (20) is configured to switch the air flow after a predetermined time has elapsed since the cold water flow was switched.

  As described above, the present invention is useful as a humidity control apparatus including a water circuit having an adsorption heat exchanger.

It is a piping system diagram showing a water circuit of a humidity control apparatus according to the first embodiment. It is a piping system diagram showing a water circuit at the time of cooling and dehumidifying operation according to the first embodiment. It is a piping system diagram showing a water circuit at the time of cooling and dehumidifying operation according to the first embodiment. It is a piping system diagram showing a water circuit at the time of cooling and dehumidifying operation according to the first embodiment. It is a piping system diagram showing a water circuit at the time of cooling and dehumidifying operation according to the first embodiment. It is a piping system diagram showing a water circuit at the time of cooling and dehumidifying operation according to the first embodiment. It is a piping system diagram showing a water circuit at the time of cooling and dehumidifying operation according to the first embodiment. It is a piping system diagram which shows the water circuit of the humidity control apparatus which concerns on Embodiment 2. It is a piping system diagram which shows the water circuit at the time of the air_conditioning | cooling dehumidification driving | operation which concerns on Embodiment 2. FIG. It is a piping system diagram which shows the water circuit at the time of the air_conditioning | cooling dehumidification driving | operation which concerns on Embodiment 2. FIG. It is a piping system diagram which shows the water circuit at the time of the air_conditioning | cooling dehumidification driving | operation which concerns on Embodiment 2. FIG. It is a piping system diagram which shows the water circuit at the time of the air_conditioning | cooling dehumidification driving | operation which concerns on Embodiment 2. FIG. It is a piping system diagram which shows the water circuit of the humidity control apparatus which concerns on Embodiment 3. It is a piping system diagram which shows the water circuit of the humidity control apparatus which concerns on the modification of Embodiment 3. It is a piping system diagram which shows the water circuit of the humidity control apparatus which concerns on Embodiment 4. It is a piping system diagram which shows the water circuit of the humidity control apparatus which concerns on Embodiment 4. It is a piping system diagram which shows the water circuit of the humidity control apparatus which concerns on the modification of Embodiment 4. It is a piping system figure which shows the water circuit of the humidity control apparatus which concerns on the modification in Embodiment 4. It is a piping system diagram which shows the water circuit of the humidity control apparatus which concerns on Embodiment 5. It is a piping system diagram which shows the water circuit of the humidity control apparatus which concerns on Embodiment 5.

Explanation of symbols

10 Humidity control device
20 Water circuit
32 First adsorption heat exchanger (first heat exchanger)
36 Bypass passage
42 Second adsorption heat exchanger (second heat exchanger)

Claims (7)

A first heat exchanger (32) and a second heat exchanger (42) having an adsorbent capable of adsorbing and desorbing water are connected, and a water circuit (20) through which cold water and hot water flow is provided,
The first heat exchanger (32) through which the cold water flows dehumidifies the first air, the second heat exchanger (42) through which the hot water flows humidifies the second air, and the second heat exchanger through which the cold water flows. A humidity control device that dehumidifies the first air at (42) and switches between a water flow and an air flow so as to switch to a state in which the second air is humidified by the first heat exchanger (32) through which hot water flows. ,
A humidity control apparatus, wherein the air flow is switched after a predetermined time from switching at least one of the cold water and the hot water. A first heat exchanger (32) and a second heat exchanger (42) having an adsorbent capable of adsorbing and desorbing water are connected, and a water circuit (20) through which cold water flows is provided.
The first heat exchanger (32) through which the cold water flows dehumidifies the first air and the second heat exchanger (42) humidifies the second air, and the second heat exchanger (42) through which the cold water flows. A humidity control apparatus that switches between a cold water flow and an air flow so as to switch to a state in which the first air is dehumidified and the second heat is humidified by the first heat exchanger (32).
A humidity control apparatus, wherein the air flow is switched after a predetermined time from switching the cold water flow. A first heat exchanger (32) and a second heat exchanger (42) having an adsorbent capable of adsorbing and desorbing water are connected, and a water circuit (20) through which hot water flows is provided,
The first heat exchanger (32) through which the warm water flows humidifies the second air, and the second heat exchanger (42) dehumidifies the first air, and the second heat exchanger (42) through which the warm water flows. And a humidity control device that switches between a hot water flow and an air flow so as to switch to a state in which the first air is dehumidified by the first heat exchanger (32).
A humidity control apparatus, wherein the air flow is switched after a predetermined time from switching the hot water flow. In claim 1,
During the dehumidifying operation for supplying the dehumidified first air to the user side, the first heat exchanger (32) and the second heat exchanger for the hot water for a predetermined time from the switching of the cold water flow to the switching of the air flow. (42) The humidity control apparatus characterized by switching to the intermediate state in which the flow to is prevented. In claim 1,
The first heat exchanger (32) and the second heat exchanger for cold water during a predetermined time from when the flow of hot water is switched to when the air flow is switched during humidification operation for supplying humidified second air to the user side (42) The humidity control apparatus characterized by switching to the intermediate state in which the flow to is prevented. In claim 4,
The water circuit (20) includes a bypass passage (36) in which warm water flows through the first heat exchanger (32) and the second heat exchanger (42) in an intermediate state. Wet equipment. In claim 5,
The water circuit (20) includes a bypass passage (36) in which cold water flows through the first heat exchanger (32) and the second heat exchanger (42) in an intermediate state. Wet equipment.

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