초록 ▼

A first heat exchanger, a desiccant block, and a second heat exchanger are arranged in series. In a dehumidification operation, a first operation mode in which the first heat exchanger acts as a condenser or a radiator and the second heat exchanger acts as an evaporator and a second operation mode i

A first heat exchanger, a desiccant block, and a second heat exchanger are arranged in series. In a dehumidification operation, a first operation mode in which the first heat exchanger acts as a condenser or a radiator and the second heat exchanger acts as an evaporator and a second operation mode in which the first heat exchanger acts as an evaporator and the second heat exchanger acts as a condenser or a radiator are alternately repeated.

대표청구항 ▼

1. A dehumidifying apparatus comprising: a refrigerant circuit in which a compressor, a flow path switching device, a first heat exchanger, a pressure reducing device, and a second heat exchanger are connected to each other in this order by a refrigerant pipe;an air passage in which the first heat e

1. A dehumidifying apparatus comprising: a refrigerant circuit in which a compressor, a flow path switching device, a first heat exchanger, a pressure reducing device, and a second heat exchanger are connected to each other in this order by a refrigerant pipe;an air passage in which the first heat exchanger, a desiccant material which is capable of adsorbing and desorbing moisture, and the second heat exchanger are arranged linearly, the air passage being configured to allow air within a dehumidified space to flow through the first heat exchanger, the desiccant material, and the second heat exchanger in the order; andan air-sending device configured to send the air within the dehumidified space into the air passage, whereina dehumidification operation is performed in which a first operation mode and a second operation mode are alternately switched by flow path switching of the flow path switching device, the first operation mode being a mode in which the air-sending device sends the air within the dehumidified space through the first heat exchanger acting as a condenser or a radiator, the desiccant material, and the second heat exchanger acting as an evaporator in this order,the second operation mode being a mode in which the air-sending device sends the air within the dehumidified space through the first heat exchanger acting as an evaporator, the desiccant material, and the second heat exchanger actin as a condenser or a radiator in this order,in the first operation mode, moisture retained in the desiccant material is desorbed, andin the second operation mode, the desiccant material adsorbs moisture from the air passing through the air passage. 2. A dehumidifying apparatus comprising: a refrigerant circuit in which a compressor, a first heat exchanger, a pressure reducing device, and a second heat exchanger are connected to each other in this order by a refrigerant pipe;an air passage in which the first heat exchanger, a desiccant material which is capable of adsorbing and desorbing moisture, and the second heat exchanger are arranged linearly, the air passage being configured to allow air within a dehumidified space to flow through the first heat exchanger, the desiccant material, and the second heat exchanger; andan air-sending device provided within the air passage, whereina dehumidification operation is performed in which a first operation mode and a second operation mode are alternately switched, the first operation mode being a mode in which the air sending device sends the air within the dehumidified space through the first heat exchanger acting as a condenser, the desiccant material, and the second heat exchanger as an evaporator in this order,the second operation mode being a mode in which the air-sending device sends the air within the dehumidified space, through the first heat exchanger acting as an evaporator, the desiccant material, and the first heat exchanger actin as a condenser in this order,in the first operation mode, moisture retained in the desiccant material is desorbed, andin the second operation mode, the desiccant material adsorbs moisture from the air passing through the air passage. 3. The dehumidifying apparatus of claim 1, further comprising a state detection device configured to detect a state of suction air sucked from the dehumidified space into the air passage, whereinan operation time of each of the first operation mode and the second operation mode is determined on a basis of a state detected by the state detection device. 4. The dehumidifying apparatus of claim 3, wherein the state detection device is a device that detects a relative humidity,a reference operation time for each of the operation modes when a relative humidity of the suction air is a preset reference relative humidity is preset,when the relative humidity of the suction air detected by the state detection device at time of start of the dehumidification operation is higher than the reference relative humidity, the operation time of the first operation mode is set so as to be longer than the reference operation time for the first operation mode, and the operation time of the second operation mode is set so as to be shorter than the reference operation time for the second operation mode, andwhen the relative humidity of the suction air detected by the state detection device at the time of start of the dehumidification operation is lower than the reference relative humidity, the operation time of the first operation mode is set so as to be shorter than the reference operation time for the first operation mode, and the operation time of the second operation mode is set so as to be longer than the reference operation time for the second operation mode. 5. The dehumidifying apparatus of claim 1, further comprising a state detection device configured to detect an operating state of the refrigerant circuit, whereinan operation time of each of the first operation mode and the second operation mode is determined on a basis of a state detected by the state detection device. 6. The dehumidifying apparatus of claim 5, wherein the state detection device is a device configured to detect a low-pressure pressure or a high-pressure pressure in the refrigerant circuit,when the low-pressure pressure or the high-pressure pressure detected by the state detection device at time of start of the dehumidification operation is higher than a predetermined low-pressure pressure reference value or high-pressure pressure reference value, the operation time of the first operation mode is set so as to be longer than a reference operation time for the first operation mode, and the operation time of the second operation mode is set so as to be shorter than a reference operation time for the second operation mode, andwhen the low-pressure pressure or the high-pressure pressure detected by the state detection device at the time of start of the dehumidification operation is lower than the predetermined low-pressure pressure reference value or high-pressure pressure reference value, the operation time of the first operation mode is set so as to be shorter than the reference operation time for the first operation mode, and the operation time of the second operation mode is set so as to be longer than the reference operation time for the second operation mode. 7. The dehumidifying apparatus of claim 1, wherein the first operation mode and the second operation mode are switched every preset time. 8. The dehumidifying apparatus of claim 1, further comprising a frost detection device configured to detect frost in the first heat exchanger, whereinduring the second operation mode, when frost is detected by the frost detection device, the second operation mode is switched to the first operation mode even before an operation time of the second operation mode ends. 9. The dehumidifying apparatus of claim 3, further comprising a frost detection device configured to detect frost in the first heat exchanger, whereinduring the second operation mode, when frost is detected by the frost detection device, the second operation mode is switched to the first operation mode even before an operation time of the second operation mode ends. 10. The dehumidifying apparatus of claim 4, further comprising a frost detection device configured to detect frost in the first heat exchanger, whereinduring the second operation mode, when frost is detected by the frost detection device, the second operation mode is switched to the first operation mode even before an operation time of the second operation mode ends. 11. The dehumidifying apparatus of claim 5, further comprising a frost detection device configured to detect frost in the first heat exchanger, whereinduring the second operation mode, when frost is detected by the frost detection device, the second operation mode is switched to the first operation mode even before an operation time of the second operation mode ends. 12. The dehumidifying apparatus of claim 6, further comprising a frost detection device configured to detect frost in the first heat exchanger, whereinduring the second operation mode, when frost is detected by the frost detection device, the second operation mode is switched to the first operation mode even before an operation time of the second operation mode ends. 13. The dehumidifying apparatus of claim 7, further comprising a frost detection device configured to detect frost in the first heat exchanger, whereinduring the second operation mode, when frost is detected by the frost detection device, the second operation mode is switched to the first operation mode even before an operation time of the second operation mode ends. 14. A dehumidifying apparatus comprising: a refrigerant circuit in which a compressor, a flow path switching device, a first heat exchanger, a pressure reducing device, and a second heat exchanger are connected to each other in this order by a refrigerant pipe;an air passage in which the first heat exchanger, a desiccant material which is capable of adsorbing and desorbing moisture, and the second heat exchanger are arranged linearly;an air-sending device configured to send air within a dehumidified space into the air passage; anda state detection device configured to detect a state of suction air sucked from the dehumidified space into the air passage, wherein the state detection device is a device that detects a relative humidity, whereina dehumidification operation is performed in which a first operation mode and a second operation mode are alternately switched by flow path switching of the flow path switching device, the first operation mode being a mode in which the first heat exchanger acts as a condenser or a radiator, the second heat exchanger acts as an evaporator, and the air-sending device sends air within the dehumidified space through the first heat exchanger, the desiccant material, and the second heat exchanger in this order so that moisture retained in the desiccant material is desorbed,the second operation mode being a mode in which the first heat exchanger acts as an evaporator, the second heat exchanger acts as a condenser or a radiator, and the air-sending device sends air within the dehumidified space through the first heat exchanger, the desiccant material, and the second heat exchanger in this order so that the desiccant material adsorbs moisture from air passing through the air passage, whereinan operation time of each of the first operation mode and the second operation mode is determined on a basis of a state detected by the state detection device,a reference operation time for each of the operation modes when a relative humidity of the suction air is a preset reference relative humidity is preset,when the relative humidity of the suction air detected by the state detection device at time of start of the dehumidification operation is higher than the reference relative humidity, the operation time of the first operation mode is set so as to be longer than the reference operation time for the first operation mode, and the operation time of the second operation mode is set so as to be shorter than the reference operation time for the second operation mode, andwhen the relative humidity of the suction air detected by the state detection device at the time of start of the dehumidification operation is lower than the reference relative humidity, the operation time of the first operation mode is set so as to be shorter than the reference operation time for the first operation mode, and the operation time of the second operation mode is set so as to be longer than the reference operation time for the second operation mode. 15. A dehumidifying apparatus comprising: a refrigerant circuit in which a compressor, a flow path switching device, a first heat exchanger, a pressure reducing device, and a second heat exchanger are connected to each other in this order by a refrigerant pipe;an air passage in which the first heat exchanger, a desiccant material which is capable of adsorbing and desorbing moisture, and the second heat exchanger are arranged linearly;an air-sending device configured to send air within a dehumidified space into the air passage; anda state detection device configured to detect an operating state of the refrigerant circuit, whereina dehumidification operation is performed in which a first operation mode and a second operation mode are alternately switched by flow path switching of the flow path switching device, the first operation mode being a mode in which the first heat exchanger acts as a condenser or a radiator, the second heat exchanger acts as an evaporator, and the air-sending device sends air within the dehumidified space through the first heat exchanger, the desiccant material, and the second heat exchanger in this order so that moisture retained in the desiccant material is desorbed,the second operation mode being a mode in which the first heat exchanger acts as an evaporator, the second heat exchanger acts as a condenser or a radiator, and the air-sending device sends air within the dehumidified space through the first heat exchanger, the desiccant material, and the second heat exchanger in this order so that the desiccant material adsorbs moisture from air passing through the air passage, andan operation time of each of the first operation mode and the second operation mode is determined on a basis of a state detected by the state detection device. 16. The dehumidifying apparatus of claim 15, wherein the state detection device is a device configured to detect a low-pressure pressure or a high-pressure pressure in the refrigerant circuit,when the low-pressure pressure or the high-pressure pressure detected by the state detection device at time of start of the dehumidification operation is higher than a predetermined low-pressure pressure reference value or high-pressure pressure reference value, the operation time of the first operation mode is set so as to be longer than a reference operation time for the first operation mode, and the operation time of the second operation mode is set so as to be shorter than a reference operation time for the second operation mode, andwhen the low-pressure pressure or the high-pressure pressure detected by the state detection device at the time of start of the dehumidification operation is lower than the predetermined low-pressure pressure reference value or high-pressure pressure reference value, the operation time of the first operation mode is set so as to be shorter than the reference operation time for the first operation mode, and the operation time of the second operation mode is set so as to be longer than the reference operation time for the second operation mode. 17. The dehumidifying apparatus of claim 14, further comprising a frost detection device configured to detect frost in the first heat exchanger, whereinduring the second operation mode, when frost is detected by the frost detection device, the second operation mode is switched to the first operation mode even before an operation time of the second operation mode ends. 18. The dehumidifying apparatus of claim 15, further comprising a frost detection device configured to detect frost in the first heat exchanger, whereinduring the second operation mode, when frost is detected by the frost detection device, the second operation mode is switched to the first operation mode even before an operation time of the second operation mode ends. 19. The dehumidifying apparatus of claim 16, further comprising a frost detection device configured to detect frost in the first heat exchanger, whereinduring the second operation mode, when frost is detected by the frost detection device, the second operation mode is switched to the first operation mode even before an operation time of the second operation mode ends.