Humidity control system

#This invention relates to humidity control systems including an adsorption heat exchanger carrying an adsorbent thereon and particularly relates to humidity control systems capable of regenerating the adsorbents on their adsorption heat exchangers by bringing them into contact with air.

#Humidity control systems are conventionally known that control the humidity of a room by adsorbing and desorbing moisture in air.

#For example, Patent Document 1 discloses a humidity control system including a refrigerant circuit in which adsorption heat exchangers each carrying an adsorbent thereon are connected. In the refrigerant circuit of the humidity control system, a compressor, a first adsorption heat exchanger, an expansion valve, a second adsorption heat exchanger and a four-way selector valve are connected. The refrigerant circuit operates in a refrigeration cycle by circulating refrigerant therethrough. Out of the two adsorption heat exchangers, one serves as an evaporator and the other serves as a condenser. The adsorption heat exchanger serving as an evaporator performs an adsorption action of adsorbing moisture in air to the adsorbent, while the adsorption heat exchanger serving as a condenser performs a regeneration action of releasing moisture in the adsorbent to air.

#FIG. 1 shows structural diagrams showing a schematic structure of a humidity control system according to Embodiment 1 in plan, right side and left side views.

#FIG. 2 shows piping diagrams showing the configuration of a refrigerant circuit in Embodiment 1, wherein FIG. 2A illustrates the behavior during a first mode and FIG. 2B illustrates the behavior during a second mode.

#FIG. 3 is a schematic perspective view of an adsorption heat exchanger.

#10 humidity control system

#50 refrigerant circuit (heat transfer medium circuit)

#51, 52 adsorption heat exchanger