WO2005106353A1 - 調湿装置 - Google Patents
調湿装置 Download PDFInfo
- Publication number
- WO2005106353A1 WO2005106353A1 PCT/JP2005/007843 JP2005007843W WO2005106353A1 WO 2005106353 A1 WO2005106353 A1 WO 2005106353A1 JP 2005007843 W JP2005007843 W JP 2005007843W WO 2005106353 A1 WO2005106353 A1 WO 2005106353A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- adsorption
- adsorption heat
- heat medium
- air
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0234—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements
- F25B2313/02343—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements during dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
Definitions
- the present invention relates to a humidity control apparatus including adsorption heat exchange for bringing passing air into contact with an adsorbent carried on a fin surface, and adjusting the humidity of the air using the adsorption heat exchanger.
- Patent Document 1 discloses a dehumidifier using two adsorption heat exchangers.
- the cooling water cooled by the cooling tower is supplied to the adsorption heat exchanger on the adsorption side, and the hot water from the heat source is supplied to the adsorption heat exchanger on the regeneration side.
- the dehumidifier has an operation in which the first adsorption heat exchanger is on the adsorption side and the second adsorption heat exchange is on the regeneration side, and an operation in which the first adsorption heat exchange is on the regeneration side.
- the dehumidifying device dehumidifies the air with the adsorption heat exchanger on the adsorption side and regenerates the adsorbent with the adsorption heat exchanger on the regeneration side.
- the operation of the dehumidifier will be described by taking as an example a state in which cooling water is supplied to the first adsorption heat exchanger and hot water is supplied to the second adsorption heat exchanger.
- the air passing through the first adsorption heat exchanger is dehumidified by desorbing moisture by the adsorbent in the process of passing between the fins.
- the cooling water flowing in the heat transfer tube of the first adsorption heat exchanger absorbs heat of adsorption generated when moisture in the air is adsorbed by the adsorbent.
- the cooling water in the heat transfer tubes also absorbs heat from the air.
- the hot water flowing in the heat transfer tubes heats the air passing between the adsorbent and the fins. Then, in the second adsorption heat exchanger, water is desorbed from the adsorbent, and the desorbed water is provided to the air passing between the fins.
- Patent document 1 JP-A-7-265649
- the air supplied to the adsorption heat exchange on the adsorption side gradually loses moisture while passing between the fins.
- the absolute humidity of the air passing through the adsorption heat exchanger on the adsorption side gradually decreases in the process of passing between the fins, and the relative humidity gradually decreases accordingly.
- the moisture in the air is adsorbed by the adsorbent.
- the amount of water adsorbed on the portion located on the downstream side of the air flow is smaller than that on the upstream side of the air flow. Then, due to the uneven amount of water adsorbed in the adsorption heat exchanger, there was a problem that the water adsorption performance in the adsorption heat exchange was not sufficiently exhibited!
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a humidity control apparatus having an adsorption heat exchanger, in which the moisture adsorption performance of the adsorption heat exchanger is sufficiently improved. There is something to show.
- Each of the first to fifth inventions includes an adsorption heat exchanger (20) provided with a plurality of fins (30) carrying an adsorbent on the surface and a plurality of heat medium flow paths through which a heat medium flows.
- adsorption heat exchanger (20) provided with a plurality of fins (30) carrying an adsorbent on the surface and a plurality of heat medium flow paths through which a heat medium flows.
- air passing through the adsorption heat exchanger (20) is adsorbed on the fin (30) surface by the adsorbent. It is intended for humidity control equipment that adjusts humidity by contact.
- the temperature difference between the air passing through the adsorption heat exchanger (20) and the fins (30) is changed from the upstream side of the air flow to the downstream side.
- the flow rate of the heat medium is different between the heat medium flow path located on the upstream side of the air flow and the heat medium flow path located on the downstream side so as to be averaged toward the air flow.
- the heat medium flow path located on the upstream side of the airflow is more heat medium flow path than the heat medium flow path located on the downstream side.
- the flow rate of the water is decreasing.
- the temperature difference between the air passing through the adsorption heat exchanger (20) and the fins (30) is reduced from the upstream side of the airflow to the downstream side. So that the heat medium flow path located upstream and the heat medium flow path located downstream of the air flow are equalized. The temperature of the flowing heat medium is different.
- the fourth invention provides a cooling medium for supplying heat to the adsorption heat exchanger (20) during the adsorption operation for adsorbing moisture in the air to the adsorption heat exchanger (20).
- the temperature of the heat medium flowing in the heat medium flow path located on the upstream side of the airflow is higher than that of the heat medium flow path located on the downstream side of the air flow.
- the heat exchange medium for supplying heat to the adsorption heat exchanger (20) is supplied to the adsorption heat exchanger (20) during the regeneration operation for desorbing water.
- the temperature of the heat medium flowing through the heat medium flow path located on the upstream side of the heat medium is lower than that of the heat medium flow path located on the downstream side.
- the adsorption heat exchanger (20) includes a heat transfer tube (40) forming a heat medium flow path.
- the adsorption heat exchanger (20) is composed of a plurality of fin 'and' tubes.
- the adsorption heat exchanger (20) has a row of heat transfer tubes (40) arranged at a constant pitch in a direction orthogonal to the air passage direction. 41, 42, 43) are formed, and each tube row (41, 42, 43) is arranged along the air passage direction.
- the adsorption heat exchanger (20) is connected and the refrigerant filled as a heat medium is circulated.
- the refrigerant circuit (10) is provided to perform a refrigeration cycle.
- the adsorption heat exchanger (20) is provided in the humidity control device.
- a heating or cooling heat medium is supplied to the heat medium passage of the adsorption heat exchanger (20).
- the heating medium for heating is supplied to the heat medium flow path
- the adsorbent on the fin (30) surface is heated
- the heating medium for cooling is supplied to the heat medium flow path
- the adsorbent on the fin (30) surface is cooled. Is done.
- air is sent into the adsorption heat exchanger (20), and comes into contact with the adsorbent on the fin (30) surface.
- the air that comes into contact with the adsorbent in the adsorption heat exchange (20) is dehumidified by removing moisture from the adsorbent, or is humidified by adding moisture desorbed from the adsorbent.
- the humidity control device controls the humidity of the air by bringing the air into contact with the adsorbent in the adsorption heat exchanger (20).
- the temperature of the fins (30) in the adsorption heat exchange (20) depends on the heat in the heat medium passage. It is affected by the flow rate of the medium.
- the temperature of the fins (30) in the state where the heating medium for heating is supplied to the heating medium flow path is higher in the flow rate of the heating medium and in the portion located near the heating medium flow path.
- the flow rate of the heat medium is higher than that of the portion located near the heat medium flow path where the flow rate is low.
- the temperature of the fins (30) in a state where the cooling medium is supplied to the heating medium flow path is such that the flow rate of the heating medium is large, and the portion located near the heating medium flow path has a lower temperature.
- the flow rate is lower than that of the portion located near the heat medium flow path where the flow rate is low.
- the flow rate of the heat medium is different between the heat medium flow path located on the upstream side of the air flow and the heat medium flow path located on the downstream side. ing.
- the temperature of the fins (30) in the adsorption heat exchanger (20) is affected by the flow rate of the heat medium in the heat medium flow path. Therefore, in the adsorption heat exchange (20), the temperature of the fins (30) is different between the upstream side and the downstream side of the air flow.
- the heat medium flow rate in the heat medium flow path located on the upstream side of the air flow in the heat medium flow path located on the downstream side is It is less than the flow rate.
- the temperature of the fins (30) in the adsorption heat exchange (20) is affected by the flow rate of the heat medium in the heat medium flow path.
- the temperature of the fins (30) is relatively low on the upstream side of the air and relatively high on the downstream side, while the adsorption heat exchanger (20 The temperature of the air gradually rises while passing through).
- the temperature of the fins (30) increases relatively upstream of the air and decreases relatively downstream, while the temperature of the adsorption heat exchanger (20) increases. ), The temperature of the air gradually decreases. Therefore, in the humidity control apparatus of the present invention, the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the airflow in the adsorption heat exchanger (20).
- the temperature of the heat medium flowing in the heat medium flow path located on the upstream side of the airflow and the temperature of the heat medium flowing in the heat medium flow path located on the downstream side are reduced. It is different.
- the temperature of the fins (30) in adsorption heat exchange (20) depends on the heat medium flowing through the heat medium flow path. Temperature. Therefore, in the adsorption heat exchange (20), the temperature of the fins (30) is different between the upstream side and the downstream side of the air flow.
- the upstream of the air flow in the adsorption heat exchanger (20) can be set.
- the temperature difference between the air and the fins (30) is averaged from the side to the downstream side.
- the air and the fins (30) extend from the upstream side to the downstream side of the air flow in the adsorption heat exchanger (20). ) Is averaged, whereby the amount of moisture adsorbed on the fins (30) from the upstream side to the downstream side of the air flow in the adsorption heat exchanger (20) is averaged. This will be described.
- the adsorption heat exchanger when supplying a heat medium for cooling to the heat medium flow path of the adsorption heat exchanger (20) to adsorb moisture in the air to the adsorbent on the fins (30), the adsorption heat exchanger ( The air passing through 20) is deprived of heat and moisture by the adsorption heat exchanger (20) during that time.
- the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the air flow in the adsorption heat exchanger (20), and the air temperature has already decreased to some extent.
- the temperature difference between the air and the fins (30) is secured downstream of the airflow.
- the cooling of the air ensures that the decrease in the relative humidity of the air is suppressed, and the fin (30) adsorbs moisture to the adsorbent on the surface.
- the amount is secured. Therefore, in the adsorption heat exchange (20), the amount of adsorbed water on the fins (30) is averaged from the upstream side to the downstream side of the air flow.
- the adsorption heat exchanger (20) when supplying a heat medium for heating to the heat medium flow path of the adsorption heat exchanger (20) to desorb water from the adsorbent on the fins (30), the adsorption heat exchanger (20) In the meantime, the air passing through is subjected to heat and moisture from the adsorption heat exchange (20).
- the humidity control unit the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the airflow in the adsorption heat exchanger (20), and the air temperature has already increased to some extent. The temperature difference between the air and the fins (30) is ensured even downstream of the airflow.
- the increase in the relative humidity of the air is suppressed by reliably heating the air, and the adsorbent force on the fin (30) surface is released.
- the amount of water to be released is secured.
- fins The amount of water desorbed from the air flow is averaged, and then when the water in the air is adsorbed by the adsorption heat exchanger (20), the fins (30 ) Is averaged.
- the adsorption operation is performed in the adsorption heat exchanger (20).
- a heat medium for cooling is supplied to the heat medium passage of the adsorption heat exchanger (20), and moisture in the air is adsorbed by the adsorption heat exchanger (20).
- the temperature of the heat medium flowing in the heat medium flow path located on the upstream side of the air flow is lower than the temperature of the heat medium flowing in the heat medium flow path located on the downstream side of the air flow. Too high!
- the temperature of the fins (30) becomes relatively high on the upstream side of the air and relatively low on the downstream side, while the temperature of the air is reduced while passing through the adsorption heat exchange (20). The temperature gradually decreases. Then, in the humidity control apparatus during the adsorption operation, the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the air flow in the adsorption heat exchanger (20).
- the air passing through the adsorption heat exchanger (20) is deprived of heat and moisture by the adsorption heat exchanger (20) during that time.
- the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the air flow in the adsorption heat exchanger (20), and the air temperature has already decreased to some extent.
- the temperature difference between the air and the fins (30) is secured downstream of the airflow.
- the cooling of the air is reliably performed, so that the decrease in the relative humidity of the air is suppressed, and the amount of water adsorbed on the fin (30) surface by the adsorbent is reduced. Is secured. Therefore, in the adsorption heat exchange (20), the amount of adsorbed water on the fins (30) is averaged from the upstream side to the downstream side of the air flow.
- the regeneration operation is performed in the adsorption heat exchanger (20).
- a heat medium for heating is supplied to the heat medium flow path of the adsorption heat exchanger (20), and moisture in the air is adsorbed by the adsorption heat exchanger (20).
- the temperature of the heat medium flowing in the heat medium flow path located on the upstream side of the air flow is lower than the temperature of the heat medium flowing in the heat medium flow path located on the downstream side of the air flow. Too low!
- the temperature of the fins (30) is relatively low on the upstream side of the air and relatively high on the downstream side, while the air is passing through the adsorption heat exchanger (20). The temperature gradually rises go. Then, in the humidity control apparatus during the adsorption operation, the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the air flow in the adsorption heat exchanger (20).
- the air passing through the adsorption heat exchanger (20) is supplied with heat and moisture from the adsorption heat exchanger (20) during that time.
- the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the air flow in the adsorption heat exchanger (20), and the air temperature has already increased to some extent.
- the temperature difference between the air and the fins (30) is secured downstream of the airflow. Therefore, even in the downstream portion of the airflow in the adsorption heat exchange (20), the heating of the air is reliably performed, so that the rise in the relative humidity of the air is suppressed, and the fin (30) desorbs from the adsorbent on the surface.
- the adsorption heat exchanger (20) the amount of water desorbed from the fins (30) is averaged from the upstream side to the downstream side of the air flow, and thereafter, the water in the air is subjected to the adsorption heat exchange.
- the amount of adsorbed water on the fins (30) is averaged from the upstream side to the downstream side of the air flow.
- the adsorption heat exchanger (20) is configured by the fin 'and' tube heat exchanger.
- the adsorption heat exchanger (20) is provided with a plurality of heat transfer tubes (40).
- a plurality of tube rows (41, 42, 43) are formed.
- Each tube row (41, 42, 43) is composed of a plurality of heat transfer tubes (40).
- a plurality of heat transfer tubes (40) are arranged at regular intervals in a direction orthogonal to the air passage direction.
- a plurality of heat transfer tubes (40) are arranged in a row of tubes (41, 42, 43) along the direction of the air flow.
- a heat medium channel is formed by the heat transfer tube (40) constituting the heat transfer medium.
- the humidity control device is provided with the refrigerant circuit (10).
- a refrigeration cycle is performed by circulating the refrigerant.
- the refrigerant circuit (10) is provided with an adsorption heat exchanger (20).
- the refrigerant circulating in the refrigerant circuit (10) is supplied to the adsorption heat exchanger (20) as a heat medium.
- the amount of moisture adsorbed on the fins (30) in the adsorption heat exchanger (20) is averaged from the upstream side to the downstream side of the air flow. . this Therefore, in the adsorption heat exchange (20), the amount of water adsorbed on the adsorbent has been reduced in the past, and the downstream side of the airflow was almost the same as the upstream side of the airflow. It is possible to secure a water adsorption amount. Therefore, according to the present invention, it is possible to sufficiently exhibit the water adsorption amount in each part of the adsorption heat exchange (20), and it is possible to increase the water adsorption capacity of the adsorption heat exchange (20).
- FIG. 1 is a refrigerant circuit diagram showing a configuration and an operation of a refrigerant circuit according to a first embodiment, where (A) shows a state during a first operation, and (B) shows a state during a second operation. It shows the state inside.
- FIG. 2 is a perspective view of an adsorption heat exchanger according to Embodiment 1.
- FIG. 3 is a side view of the adsorption heat exchanger of Embodiment 1 as viewed from the U-tube side.
- FIG. 4 is a schematic side view of the adsorption heat exchanger of Embodiment 1 as viewed from the short side force of the fin.
- FIG. 5 is a schematic side view of an adsorption heat exchanger according to a modified example of Embodiment 1 as viewed from the short side of the fin.
- FIG. 6 is a schematic side view of the adsorption heat exchanger of Embodiment 2 as viewed from the short side force of the fin.
- FIG. 7 is a schematic side view of an adsorption heat exchanger according to a modification of the second embodiment as viewed from the short side of the fin.
- FIG. 8 is a schematic side view of the adsorption heat exchanger of Embodiment 3 as viewed from the short side force of the fin.
- FIG. 9 is a schematic side view of an adsorption heat exchanger according to a modified example of Embodiment 3 as viewed from the short side of the fin.
- FIG. 10 is a schematic perspective view of an adsorption heat exchanger according to another embodiment.
- FIG. 11 is a schematic perspective view of a heat transfer tube provided in an adsorption heat exchanger of another embodiment.
- FIG. 12 is a schematic perspective view of a fin provided in an adsorption heat exchanger of another embodiment. Explanation of reference numerals
- Embodiment 1 of the present invention will be described.
- the humidity control apparatus of the present embodiment is configured to be able to perform a dehumidifying operation for supplying dehumidified air to a room and a humidifying operation for supplying humidified air to a room.
- the humidity control device includes a refrigerant circuit (10) as a heat medium circuit.
- the refrigerant circuit (10) includes a first adsorbing member (11), a second adsorbing member (12), a compressor (13), a four-way switching valve (14), and an electric expansion valve ( 15) is a closed circuit provided.
- the refrigerant circuit (10) is filled with a refrigerant as a heat medium.
- a vapor compression refrigeration cycle is performed by circulating the charged refrigerant.
- Each of the first adsorption member (11) and the second adsorption member (12) is constituted by an adsorption heat exchanger (20). The details of the adsorption heat exchange (20) will be described later.
- the compressor (13) has a discharge side connected to a first port of the four-way switching valve (14) and a suction side connected to a second port of the four-way switching valve (14). Each is connected to a port.
- One end of the first suction member (11) is connected to a third port of the four-way switching valve (14).
- the other end of the first adsorption member (11) is connected to one end of the second adsorption member (12) via the electric expansion valve (15).
- the other end of the second suction member (12) is connected to a fourth port of the four-way switching valve (14).
- the four-way switching valve (14) is in a first state in which the first port and the third port are in communication and the second port and the fourth port are in communication (the state shown in Fig. 1 (A)). Can be switched to the second state (the state shown in Fig. 1 (B)) where the first and fourth ports communicate and the second and third ports communicate. .
- each of the first adsorbing member (11) and the second adsorbing member (12) is an adsorbent heat exchanger.
- the adsorption heat exchanger (20) is a so-called cross-fin type fin 'and' tube heat exchanger.
- the adsorption heat exchanger (20) includes a plurality of heat transfer tubes (40) made of copper and fins (30) made of aluminum.
- the fins (30) are each formed in a rectangular plate shape, and are arranged at regular intervals.
- Each heat transfer tube (40) is formed in a straight tube shape and penetrates fins (30) arranged at regular intervals. That is, in the adsorption heat exchanger (20), many fins (30) are arranged at equal intervals along the axial direction of each heat transfer tube (40).
- an adsorption layer is formed on the surface of each fin (30).
- This adsorbing layer is composed of an adsorbent made of powdery zeolite and a binder having urethane resin and the like.
- the zeolite particles constituting the adsorbent are bonded to other zeolite particles and fins (30) by a binder.
- the adsorbent provided in the adsorption layer is not limited to zeolite.
- Various materials such as silica gel, activated carbon, and organic polymer materials having a hydrophilic functional group may be provided as the adsorbent in the adsorption layer.
- the arrangement of the heat transfer tubes (40) is a so-called staggered arrangement. Specifically, in the adsorption heat exchange (20), the heat transfer tubes (40) are arranged at a predetermined pitch along the long sides of the fins (30). In the adsorption heat exchanger (20), the heat transfer tubes (40) are arranged at a predetermined pitch along the short sides of the fins (30).
- the pitch of the heat transfer tubes (40) in the long side direction of the fin (30) is a so-called step pitch, and the pitch of the heat transfer tubes (40) in the short side direction of the fin (30) is a so-called row pitch.
- a group of heat transfer tubes (40) arranged in a line along the long side of the fins (30) constitutes one tube row.
- Three (41, 42, 43) are formed. Adjacent ones of the three rows (41, 42, 43) are shifted by half the step pitch in the longitudinal direction of the fin (30).
- adjacent heat transfer tubes (40) are connected to each other by U-shaped U tubes (45). Nose is formed.
- the one located at the most upstream side left side in FIG.
- the third tube row (43) of the air flow constitutes the first pipe row (41), and the one located immediately after that is the first pipe row (41).
- the second tube row (42) is formed, and the one located at the most downstream side (right side in FIG. 3) of the air flow forms the third tube row (43).
- a first row portion (21), a second row portion (22), and a third row portion (23) are formed in this order along the left direction (the left direction is also the right direction in FIG. 3).
- the portion extending from the leading edge to the middle between the first tube row (41) and the second tube row (42) becomes the first row portion (21)
- the part extending from the middle of the pipe row (41) and the second pipe row (42) to the middle of the second pipe row (42) and the third pipe row (43) becomes the second row portion (22)
- the portion extending between the rear end of the intermediate force between the row (42) and the third tube row (43) is the third row portion (23).
- the first row part (21) and the second row part (22) are directed in order from the upstream side of the air flow to the downstream side (the left side force is also the right side in Fig. 3). And a third row portion (23) are formed.
- the adsorption heat exchanger (20) as the first adsorption member (11) or the second adsorption member (12) has the other end of the first tube row (41) connected to the electric expansion valve (15).
- the other end of the third tube row (43) is connected to the four-way switching valve (14).
- This humidity control apparatus alternately repeats the first operation and the second operation at predetermined time intervals (for example, every five minutes) during both the dehumidifying operation and the humidifying operation.
- the humidity control device takes in outdoor air (OA) as the first air and room air (RA) as the second air during the dehumidifying operation.
- the humidifying device takes in indoor air (RA) as the first air and outdoor air (OA) as the second air during the humidification operation.
- the first operation will be described.
- the second air force is supplied to the first adsorbing member (11), and the first air is supplied to the second adsorbing member (12).
- a regeneration operation for the first adsorption member (11) and an adsorption operation for the second adsorption member (12) are performed.
- the four-way switching valve (14) is set to the first state.
- the compressor (13) When the compressor (13) is operated, the refrigerant circulates in the refrigerant circuit (10) to perform refrigeration.
- the first adsorption member (11) functions as a condenser
- the second adsorption member (12) functions as an evaporator.
- the refrigerant discharged from the compressor (13) radiates heat and condenses in the first adsorbing member (11).
- the refrigerant condensed by the first adsorption member (11) is decompressed when passing through the electric expansion valve (15), and then absorbs heat by the second adsorption member (12) and evaporates.
- the refrigerant evaporated by the second adsorption member (12) is sucked into the compressor (13), compressed, and discharged again by the compressor (13).
- the adsorption layer on the surface of the fin (30) is heated by the refrigerant in the heat transfer tube (40), and the heated adsorption layer The water desorbed from the air is given to the second air.
- the second adsorbing member (12) also composed of adsorption heat exchange (20), moisture in the first air is adsorbed on the adsorption layer on the fin (30) surface, and the generated heat of adsorption is transferred to the heat transfer tube (40). Heat is absorbed by the refrigerant in parentheses.
- the first air dehumidified by the second adsorbing member (12) is supplied to the room, and the desorbed water is removed together with the second air by the first adsorbing member (11). Is discharged to On the other hand, during the humidifying operation, the second air humidified by the first adsorbing member (11) is supplied into the room, and the first air deprived of moisture by the second adsorbing member (12) is discharged outside the room. You.
- the second operation will be described.
- the first air force is supplied to the first suction member (11), and the second air is supplied to the second suction member (12).
- the regeneration operation of the second adsorption member (12) and the adsorption operation of the first adsorption member (11) are performed. Done.
- the four-way switching valve (14) is set to the second state.
- the compressor (13) When the compressor (13) is operated, the refrigerant circulates in the refrigerant circuit (10) to perform refrigeration.
- the second adsorption member (12) functions as a condenser, and the first adsorption member (11) functions as an evaporator.
- the refrigerant discharged from the compressor (13) also releases heat and condenses in the second adsorbing member (12).
- the refrigerant condensed by the second adsorption member (12) is decompressed when passing through the electric expansion valve (15), and then absorbs heat by the first adsorption member (11) and evaporates.
- the refrigerant evaporated by the first adsorption member (11) is sucked into the compressor (13), compressed, and discharged again by the compressor (13).
- the second adsorption member (12) constituted by the adsorption heat exchanger (20
- the adsorption layer on the surface of the fin (30) is heated by the refrigerant in the heat transfer tube (40), and the heated adsorption layer
- the water desorbed from the air is given to the second air.
- the first adsorbing member (11) also constituted by adsorption heat exchange (20)
- moisture in the first air is adsorbed on the adsorption layer on the surface of the fin (30), and the generated heat of adsorption is transferred to the heat transfer tube (40). Heat is absorbed by the refrigerant in parentheses.
- the first air dehumidified by the first adsorbing member (11) is supplied into the room, and the moisture desorbed from the second adsorbing member (12) is discharged together with the second air to the outside of the room. Is discharged to On the other hand, during the humidifying operation, the second air humidified by the second adsorbing member (12) is supplied into the room, and the first air deprived of moisture by the first adsorbing member (11) is discharged outside the room. You.
- the adsorption heat exchanger (20) constituting the first adsorption member (11) and the second adsorption member (12) functions as an evaporator
- Moisture in the air is adsorbed to the exchanger (20).
- Low-pressure refrigerant is supplied to the adsorption heat exchanger (20) functioning as an evaporator as a heat medium for cooling.
- the process of adsorbing moisture in the air to the adsorption heat exchanger (20) serving as an evaporator will be described with reference to FIG.
- the refrigerant depressurized by the electric expansion valve (15) is introduced into the first tube row (41).
- the first tube row (41) part of the liquid refrigerant absorbs heat and evaporates.
- the refrigerant having passed through the first tube row (41) is further decompressed by the first capillary tube (51) and is introduced into the second tube row (42).
- the second tube row (42) part of the liquid refrigerant absorbs heat and evaporates .
- the evaporation temperature of the refrigerant in the second tube row (42) is lower than the evaporation temperature of the refrigerant in the first tube row (41).
- the refrigerant that has passed through the second tube row (42) is further decompressed by the second capillary tube (52) and is introduced into the third tube row (43).
- the remaining liquid refrigerant absorbs heat and evaporates.
- the evaporation temperature of the refrigerant in the third tube array (43) is lower than the evaporation temperature of the refrigerant in the second tube array (42).
- the refrigerant evaporates in the order of the first tube row (41), the second tube line (42), and the third tube line (43). The temperature goes down. Then, in the adsorption heat exchanger (20), which is an evaporator, the temperature of the fins (30) increases in the order of the first row (21), the second row (22), and the third row (23). Going low.
- the air sent into the adsorption heat exchanger (20) flows into the space between the fins (30), and the first row portion (21), the second row portion (22), and the third row portion (23). , In order, and the temperature decreases in the process. In other words, in the adsorption heat exchange (20) serving as an evaporator, the temperature of the fins (30) and the temperature of the air gradually decrease from the upstream side to the downstream side of the air flow, and the air flow is reduced. The temperature difference between the fin (30) and the air is averaged from the upstream side to the downstream side.
- the air passing through the adsorption heat exchanger (20) serving as an evaporator is deprived of heat and moisture by the adsorption heat exchanger (20) during that time.
- the humidity controller the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the air flow in the adsorption heat exchanger (20), and the air temperature has already dropped to some extent.
- the temperature difference between the air and the fins (30) is ensured also on the downstream side of the air flow.
- the cooling of the air is reliably performed, so that the decrease in the relative humidity of the air is suppressed, and the adsorption of moisture to the adsorbent on the fin (30) surface is suppressed. Quantity is secured. For this reason, in the adsorption heat exchanger (20), the amount of adsorbed water on the fins (30) is averaged from the upstream side to the downstream side of the air flow.
- the adsorption heat exchange (20) constituting the first adsorption member (11) and the second adsorption member (12) functions as a condenser, and the adsorption heat exchange is performed. Water desorbs from (20).
- a medium is supplied as a heating medium for heating.
- the refrigerant discharged by the compressor (13) is introduced into the third tube row (43).
- part of the gas refrigerant releases heat and condenses.
- the refrigerant that has passed through the third tube row (43) is further reduced in pressure by the second capillary tube (52), and is then introduced into the second tube row (42).
- the second tube row (42) a part of the gas refrigerant releases heat and condenses.
- the condensation temperature of the refrigerant in the second tube row (42) is lower than the condensation temperature of the refrigerant in the third tube row (43).
- the refrigerant that has passed through the second tube row (42) is further decompressed by the first capillary tube (51) and is introduced into the first tube row (41).
- the remaining gas refrigerant dissipates heat and condenses.
- the condensation temperature of the refrigerant in the first tube row (41) is lower than the condensation temperature of the refrigerant in the second tube row (42).
- the refrigerant evaporation temperature in the order of the first pipe row (41), the second pipe row (42), and the third pipe row (43). Is getting higher.
- the adsorption heat exchanger (20) which is a condenser the temperature of the fins (30) is increased in the order of the first row (21), the second row (22), and the third row (23). Going high.
- the air sent into the adsorption heat exchanger (20) flows into the space between the fins (30), and the first row portion (21), the second row portion (22), and the third row portion (23). , And the temperature rises in the process.
- the adsorption heat exchange (20) serving as a condenser the temperature of the fins (30) and the temperature of the air gradually increase from the upstream side to the downstream side of the air flow, so that the air flow The temperature difference between the fin (30) and the air is averaged from the upstream side to the downstream side.
- the humidity control device Power Heat and moisture are applied.
- the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the air flow in the adsorption heat exchange (20). Downstream of the flow, a temperature difference between the air and the fins (30) is ensured. Therefore, even in the downstream portion of the air flow in the adsorption heat exchanger (20), the heating of the air is reliably performed, thereby suppressing an increase in the relative humidity of the air, and the adsorbent force on the surface of the fin (30) is desorbed. A sufficient amount of water is secured.
- the heat of adsorption In the exchanger (20) the amount of water desorbed from the fins (30) is averaged from the upstream side to the downstream side of the air flow, and then the water in the air is transferred to the adsorption heat exchanger (20). At the time of adsorption, the amount of water adsorbed on the fins (30) is averaged from the upstream side to the downstream side of the air flow.
- the adsorption heat exchanger (20) is configured such that the amount of water adsorbed on the fins (30) is averaged from the upstream side to the downstream side of the air flow. Have been. For this reason, in the adsorption heat exchange (20), the amount of water adsorbed on the adsorbent has been reduced in the past! / The downstream side of the airflow was almost the same as the upstream side of the airflow. It is possible to secure a certain amount of water adsorption. Therefore, according to the present embodiment, it is possible to sufficiently exhibit the water adsorption amount in each part of the adsorption heat exchange (20), and to increase the water adsorption capacity of the adsorption heat exchange (20). be able to.
- the air when the temperature of the fins (30) is substantially constant from upstream to downstream of the air flow in the adsorption heat exchanger (20) serving as an evaporator, the air
- the temperature of the fins (30) in the first row section (21) located upstream of the flow may fall below the dew point temperature of the air. If the temperature of the fin (30) falls below the dew point temperature of the air, dew condensation will occur on the surface of the fin (30), and drain water generated by condensation of moisture in the air will be discharged. Is required.
- set the refrigerant evaporation temperature in all the pipe rows (41, 42, 43) to a relatively high temperature to form condensation on the fin (30) surface. Can be considered. However, if this measure is taken, the cooling of the air downstream of the air flow will be insufficient, and it may not be possible to secure a sufficient amount of water adsorbed on the fins (30).
- the temperature of the fins (30) is set relatively high in the first row portion (21) through which the air having a relatively high dew point temperature passes.
- the temperature of the fins (30) is set relatively low in the third row portion (23) through which air that has been dehumidified to some extent and whose dew point temperature has already decreased passes. Therefore, according to the present embodiment, it is possible to prevent drain water from being generated in the adsorption heat exchanger (20), and furthermore, to provide sufficient moisture even in the third row portion (23) located downstream of the air flow. The amount of adsorption can be secured. [0068] Modification of Embodiment 1
- the adsorption heat exchanger (20) is provided with three tube rows, the number of the tube rows is merely an example.
- the adsorption heat exchanger (20) is provided with four pipe rows, the four pipe rows (41 to 44) that are located at the most upstream side of the airflow are the first pipe row (41).
- the pipe located immediately after the first pipe row (41) constitutes the second pipe row (42), and the pipe located immediately after the second pipe row (42) is the third pipe row (43). ),
- the one located at the most downstream side of the air flow constitutes the fourth tube row (44).
- a configuration in which these four tube rows (41 to 44) are connected in series to each other via a cable tube may be adopted.
- Such a configuration may be adopted.
- one end of the first pipe row (41) and one end of the second pipe row (42) are connected to one end of the third pipe row (43) and the other end. It is connected to one end of the four tube row (44) via a capillary tube (50).
- the other end of the first pipe row (41) and the other end of the second pipe row (42) in the adsorption heat exchanger (20) are connected to the electric expansion valve (15).
- the other end of the third tube row (43) and the other end of the fourth tube row (44) in the adsorption heat exchanger (20) are connected to the four-way switching valve (14).
- the refrigerant decompressed by the electric expansion valve (15) is distributed to the first tube row (41) and the second tube row (42). .
- the first tube row (41) and the second tube row (42) a part of the liquid refrigerant absorbs heat and evaporates.
- the refrigerant that has passed through the first tube row (41) and the refrigerant that has passed through the second tube row (42) are merged and the pressure is also reduced by the capillary tube (50).
- the fourth row (44) In the third tube row (43) and the fourth tube row (44), the remaining liquid coolant absorbs heat and evaporates.
- the refrigerant that has passed through the third tube row (43) and the refrigerant that has passed through the fourth tube row (44) are merged and sucked into the force compressor (13).
- the refrigerant evaporation temperatures in the third tube row (43) and the fourth tube row (44) are equal to the first tube row (41) and the second tube row (42). Lower than the refrigerant evaporation temperature at Therefore, in the adsorption heat exchange (20), the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the air flow.
- the gas refrigerant discharged from the compressor (13) flows into the third tube row (43) and the fourth tube row (44). Distributed to 3rd tube row (43) and 4th tube row (44) Then, part of the gas refrigerant releases heat and condenses.
- the refrigerant that has passed through the third tube row (43) and the refrigerant that has passed through the fourth tube row (44) are merged and the pressure is also reduced by the capillary tube (50), and then the first tube row (41) And distributed to the second tube row (42). In the first tube row (41) and the second tube row (42), the remaining gas refrigerant dissipates heat and condenses.
- the refrigerant that has passed through the first pipe row (41) and the refrigerant that has passed through the second pipe row (42) are combined and sent to the power electric expansion valve (15).
- the refrigerant condensing temperature in the third tube row (43) and the fourth tube row (44) is increased by the first tube row (41) and the second tube row (42). Higher than the refrigerant condensation temperature at Therefore, in the adsorption heat exchange (20), the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the air flow.
- Embodiment 2 of the present invention will be described.
- the configuration of the adsorption heat exchange (20) in the first embodiment is changed.
- the adsorption heat exchanger (20) of the present embodiment As shown in FIG. 6, in the adsorption heat exchanger (20) of the present embodiment, three pipe rows (41, 42, 43) are connected in parallel.
- the adsorption heat exchanger (20) is provided with four cavities (51-54).
- the first capillary tube (51) is connected to the first tube row (
- a second capillary tube (52) is provided between one end of the second tube row (42) and one end of the second tube row (42).
- the third capillary tube (53) is connected to the first tube row (53).
- the fourth capillary tube (54) is connected to the second tube row (54).
- a four-way switching valve (14) is provided between one end of the third tube row (43) and the second capillary tube (52) in the adsorption heat exchanger (20). ), And the other end of the first tube row (41) of the adsorption heat exchanger (20) and the third capillary tube (53) are connected to the electric expansion valve (15).
- the refrigerant decompressed by the electric expansion valve (15) is distributed to the three pipe rows (41, 42, 43).
- first tube row (41) The refrigerant first flows into first tube row (41). This refrigerant absorbs heat and evaporates while passing through the first tube row (41), and then passes through the first capillary tube (51) and the second capillary tube (52) in that order to reduce the pressure. Is done.
- second tube row (42) ⁇
- the refrigerant is depressurized by the third capillary tube (53), Flows into the second tube row (42).
- This refrigerant absorbs heat and evaporates while passing through the second tube row (42), and then passes through the second capillary tube (52) and is decompressed.
- To the third tube row (43) ⁇ The refrigerant passes through the third capillary tube (53) and the fourth capillary tube (54) in order, and is depressurized, and then the third tube line (43) ).
- This refrigerant absorbs heat and evaporates while passing through the third tube row (43), and then merges with the refrigerant that has passed through the first tube row (41) and the second tube row (42) to form a compressor ( Inhaled to 13).
- the refrigerant reduced in pressure only by the electric expansion valve (15) flows into the first tube row (41) to the electric expansion valve (15).
- the refrigerant decompressed by the third capillary tube (53) flow to the second tube row (42), and the electric expansion valve (15), the third capillary tube (53) and the fourth capillary tube
- the refrigerant decompressed in (54) is supplied to the third tube row (43).
- the refrigerant evaporation temperature decreases in the order of the first tube row (41), the second tube row (42), and the third tube row (43). Therefore, also in the present embodiment, in the adsorption heat exchanger (20) serving as an evaporator, the temperature difference between the fin (30) and the air is averaged from the upstream side to the downstream side of the air flow.
- the refrigerant discharged from the compressor (13) is distributed to the three pipe rows (41, 42, 43).
- Third tube row (43) The refrigerant first flows into third tube row (43). This refrigerant dissipates heat while passing through the third tube row (43) and is condensed, and then passes through the fourth capillary tube (54) and the third capillary tube (53) in order, and is decompressed.
- Fourth capillary tube (54) and the third capillary tube (53) in order, and is decompressed.
- the refrigerant is depressurized by the second capillary tube (52) and then flows into the second tube row (42).
- the refrigerant radiates heat and condenses while passing through the second tube row (42), and then passes through the third capillary tube (53) and is decompressed.
- Direction toward the first tube row (41) ⁇
- the refrigerant passes through the second capillary tube (52) and the first capillary tube (51) and is decompressed, and then the first tube line (41) Flows into This refrigerant dissipates heat while passing through the first tube row (41) and condenses, and then merges with the refrigerant that has passed through the third tube row (43) and the second pipe row (42) to be electrically expanded and expanded. Sent to (15).
- the refrigerant discharged from the compressor (13) is discharged from the compressor (13) to the third tube row (43).
- the refrigerant decompressed in the second capillary tube (52) is discharged from the compressor (13) to the second tube row (42), and is discharged from the second capillary tube (52).
- the refrigerant decompressed by the valve (52) and the first capillary tube (51) is supplied to the first tube row (41), respectively.
- the refrigerant condensing temperature increases in the order of the first tube row (41), the second tube row (42), and the third tube row (43). Therefore, also in the present embodiment, in the adsorption heat exchange (20) serving as the condenser, the temperature difference between the fin (30) and the air is averaged from the upstream side to the downstream side of the air flow.
- the adsorption heat exchanger (20) is provided with three tube rows, the number of the tube rows is merely an example.
- the four pipe rows located at the most upstream side of the air flow constitute the first pipe row (41), and The one located immediately after the first row (41) constitutes the second row (42), and the one located immediately after the second row (42) constitutes the third row (43).
- the one located at the most downstream side of the air flow constitutes the fourth tube row (44).
- adsorption heat exchange (20) of the present modification a configuration in which these four pipe rows (41 to 44) are connected in parallel to each other may be adopted, but a configuration as shown in FIG. Is also good. Specifically, in the adsorption heat exchanger (20) shown in the figure, one end of the first pipe row (41) and one end of the second pipe row (42) are connected to the third pipe row (43). One end and one end of the fourth tube row (44) are connected via a first capillary tube (51).
- the other end of the first tube row (41) and the other end of the second tube row (42) are connected to the other end of the third tube row (43) and the fourth tube row ( The other end of 44) is connected via the second capillary tube (52).
- the refrigerant circuit (10) between the other end of the first tube row (41) and the other end of the second tube row (42) in the adsorption heat exchanger (20) and the second capillary tube (52). are connected to the electric expansion valve (15), and the other end of the third tube row (43) and the other end of the fourth tube row (44) in the adsorption heat exchanger (20) and the first capillary tube ( 51) is connected to the four-way switching valve (14).
- the refrigerant decompressed by the electric expansion valve (15) is divided into two parts.
- One of the divided refrigerant is distributed to the first tube row (41) and the second tube row (42).
- the liquid refrigerant absorbs heat and evaporates.
- the refrigerant that has passed through the first tube row (41) and the refrigerant that has passed through the second tube row (42) are merged and decompressed by the force cavity tube (50).
- the other of the divided refrigerant is the second capillary tube.
- the pressure is reduced at (52) and distributed to the third tube row (43) and the fourth tube row (44).
- the liquid refrigerant absorbs heat and evaporates.
- the refrigerant that has passed through the third pipe row (43) and the refrigerant that has passed through the fourth pipe row (44) are combined, and after being combined, the refrigerant of the first pipe row (41) and the second pipe row (42) and furthermore They are merged and then sucked into the compressor (13).
- the refrigerant evaporation temperature in the third tube row (43) and the fourth tube row (44) is reduced by the first tube row (41) and the second tube row (42). Lower than the refrigerant evaporation temperature at Therefore, in the adsorption heat exchange (20), the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the air flow.
- the gas refrigerant discharged from the compressor (13) is divided into two parts.
- One of the divided refrigerant is distributed to a third tube row (43) and a fourth tube row (44).
- the gas refrigerant releases heat and condenses.
- the refrigerant that has passed through the third tube row (43) and the refrigerant that has passed through the fourth tube row (44) are merged and decompressed by the second capillary tube (52).
- the other of the divided refrigerant is decompressed by the first capillary tube (51) and distributed to the first tube row (41) and the second tube row (42).
- the gas refrigerant releases heat and condenses.
- the refrigerant that has passed through the first pipe row (41) and the refrigerant that has passed through the second pipe row (42) merge and then further merge with the refrigerant from the third pipe row (43) and the fourth pipe row (44). Then, it is sent to the electric expansion valve (15).
- the refrigerant condensing temperature in the third tube row (43) and the fourth tube row (44) is increased by the first pipe row (41) and the second pipe row (42). Higher than the refrigerant condensation temperature at Therefore, in the adsorption heat exchange (20), the temperature difference between the air and the fins (30) is averaged from the upstream side to the downstream side of the air flow.
- Embodiment 3 of the present invention will be described.
- the configuration of the adsorption heat exchange (20) in the first embodiment is changed.
- the adsorption heat exchange (20) of the present embodiment three tube rows (41, 42, 43) are connected in parallel.
- the adsorption heat exchange (20) is provided with two cavity tubes (51, 52).
- the first capillary tube (51) is connected between one end of the first tube row (41) and one end of the second tube row (42), and the second capillary tube (52) is connected to the second tube row (52).
- the four-way switching valve (14) is provided between one end of the third tube row (43) and the second capillary tube (52) in the adsorption heat exchanger (20). ), And the other end of each tube row (41 to 43) in the adsorption heat exchanger (20) is connected to the electric expansion valve (15).
- the refrigerant decompressed by the electric expansion valve (15) is distributed to the three pipe rows (41, 42, 43).
- the refrigerant flowing into the first tube row (41) absorbs heat and evaporates while passing through the first tube row (41), and thereafter, the first and second capillary tubes (51) and (52). ) In order.
- the refrigerant that has flowed into the second tube row (42) absorbs heat and evaporates while passing through the second tube row (42), and then passes through the second capillary tube (52).
- the refrigerant flowing into the third tube row (43) absorbs heat and evaporates while passing through the third tube row (43), and then flows through the first tube row (41) and the second pipe row (42).
- the refrigerant merges with the passed refrigerant and is sucked into the compressor (13).
- the supplied refrigerant is divided into three, and the first refrigerant of the divided refrigerant is divided into the first tube row (41) And the first refrigerant tube (51) and the second capillary tube (52), and the second refrigerant passes through the second tube row (42) and the second capillary tube (52).
- the third refrigerant passes only through the third tube row (43). Therefore, in the adsorption heat exchange (20), the refrigerant flow increases in the order of the first tube row (41), the second tube row (42), and the third tube row (43).
- the temperature of the fins (30) becomes lower near the pipe rows (41 to 43) where the refrigerant flow rate is higher. Therefore, also in the present embodiment, in the adsorption heat exchanger (20) serving as the evaporator, the temperature difference between the fin (30) and the air is averaged from the upstream side to the downstream side of the air flow.
- the refrigerant discharged from the compressor (13) is distributed to the three pipe rows (41, 42, 43).
- the refrigerant that has flowed into the third tube row (43) radiates heat and condenses while passing through the third tube row (43).
- the refrigerant passes through the second capillary tube (52) and flows into the second tube row (42).
- the refrigerant releases heat and condenses while passing through the second tube row (42).
- Direction toward the first tube row (41) The refrigerant flows through the second cavity tube (52) and the first cavity tube (51) in order and flows into the first tube line (41).
- This refrigerant dissipates heat while passing through the first tube row (41) and condenses, and then passes through the third tube row ( The refrigerant that has passed through 43) and the second row of tubes (42) merges and is sent to the electric expansion valve (15).
- the supplied refrigerant is divided into three, and the first refrigerant of the divided refrigerant is supplied to the second capillary tube. (52), the first capillary tube (51) and the first tube row (41), and the second refrigerant passes through the second capillary tube (52) and the second tube row (42).
- the third refrigerant passes only through the third tube row (43). For this reason, in this adsorption heat exchanger (20), the refrigerant flow rate increases in the order of the first tube row (41), the second tube row (42), and the third tube row (43).
- the temperature of the fins (30) becomes higher near the pipe rows (41 to 43) where the coolant flow rate is larger. Therefore, also in the present embodiment, in the adsorption heat exchanger (20) serving as a condenser, the temperature difference between the fin (30) and the air from the upstream side to the downstream side of the air flow is averaged. .
- the adsorption heat exchanger (20) is provided with three tube rows, the number of the tube rows is merely an example.
- the four pipe rows located at the most upstream side of the air flow constitute the first pipe row (41), and The one located immediately after the first row (41) constitutes the second row (42), and the one located immediately after the second row (42) constitutes the third row (43).
- the one located at the most downstream side of the air flow constitutes the fourth tube row (44).
- adsorption heat exchange (20) of the present modification a configuration in which these four tube rows (41 to 44) are connected in parallel to each other may be adopted, but a configuration as shown in FIG. Is also good. Specifically, in the adsorption heat exchanger (20) shown in the figure, one end of the first pipe row (41) and one end of the second pipe row (42) and the third pipe row (43) One end and one end of the fourth tube row (44) are connected via a capillary tube (50).
- a space between one end of 44) and the capillary tube (50) is connected to the four-way switching valve (14).
- the refrigerant decompressed by the electric expansion valve (15) is divided into two parts.
- One of the diverted refrigerants is distributed to the first pipe row (41) and the second pipe row (42). After being absorbed and evaporated, it passes through the capillary tube (50).
- the other of the divided refrigerant is distributed to the third pipe row (43) and the fourth pipe row (44), and after absorbing heat and evaporating, the first pipe row (41) and the second pipe row (41).
- the refrigerant further merges with the refrigerant of the line (42) and is sucked into the force compressor (13).
- the supplied refrigerant is divided into two parts, and one of the divided refrigerant flows into the first tube row (41) or the second tube row. After passing through (42) and the cavity tube (50), the other of the divided refrigerant passes only through the third tube row (43) or the fourth tube row (44). For this reason, in this adsorption heat exchange (20), the third pipe row (43) and the fourth pipe row (44) have a higher refrigerant flow rate than the first pipe row (41) and the second pipe row (42). Increase.
- the temperature of the fins (30) becomes lower as the flow rate of the refrigerant increases and near the pipe rows (41 to 44). Therefore, also in the present embodiment, in the adsorption heat exchanger (20) serving as an evaporator, the temperature difference between the fin (30) and the air is averaged from the upstream side to the downstream side of the air flow.
- the gas refrigerant discharged from the compressor (13) is divided into two parts.
- One of the divided refrigerant is distributed to the third tube row (43) and the fourth tube row (44), and dissipates heat and condenses.
- the other of the divided refrigerant passes through the cavity tube (50) and is distributed to the first tube row (41) and the second tube row (42).
- the pipe row (43) and the fourth pipe row (44) are combined with the refrigerant of the force and sent to the electric expansion valve (15).
- the supplied refrigerant is divided into two parts, and one of the divided refrigerant flows into the third tube row (43) or the fourth tube. Passing only through the row (44), the other of the divided refrigerant passes through the capillary tube (50) and the first pipe row (41) or the second pipe row (42). For this reason, in this adsorption heat exchange (20), the third pipe row (43) and the fourth pipe row (44) have a higher refrigerant flow rate than the first pipe row (41) and the second pipe row (42). Increase.
- the temperature of the fins (30) becomes higher as the flow rate of the refrigerant increases and the pipe rows (41 to 44) become closer. Therefore, also in the present embodiment, in the adsorption heat exchanger (20) serving as a condenser, the temperature difference between the fin (30) and the air is averaged from the upstream side to the downstream side of the air flow.
- the adsorption heat exchanger (20) may be constituted by so-called aluminum laminated heat exchange as shown in FIG.
- the adsorption heat exchanger (20) of this modified example is provided with a plurality of aluminum heat transfer tubes (60) and a plurality of aluminum fins (62).
- the adsorption heat exchange (20) is provided with two headers (63, 64).
- the heat transfer tube (60) has a flat elliptical cross section.
- heat passages (61) extending in the axial direction are formed in one heat transfer tube (60) in a row.
- the flow passage (61) forms a heat medium passage.
- the number of flow passages (61) formed in the heat transfer tube (60) is merely an example.
- the fin (62) is formed by forming a thin and long sheet into a corrugated shape, and constitutes a so-called corrugated fin.
- the heat transfer tubes (60) and the fins (62) are alternately laminated and joined to each other by brazing or the like. Also, in the adsorption heat exchange (20), headers (63, 64) are provided along the laminating direction of the heat transfer tubes (60) and the fins (62). One end of each heat transfer tube (60) is connected to the first header (63), and the other end is connected to the second header (64). In the adsorption heat exchanger (20), an adsorbent is carried on the surfaces of the heat transfer tubes (60) and the fins (62).
- each of the heat transfer tubes (60) three flow passages (61) located at the most upstream side of the air flow correspond to the first passage group (66).
- the three passages (61) formed and located immediately after the first passage group (66) form the second passage group (67), and the three passages (61) located at the most downstream side of the airflow. ) Form a third passage group (68).
- each heat transfer tube (60) When the adsorption heat exchanger (20) is an evaporator, each heat transfer tube (60) has a first passage group (66), a second passage group (67), and a third passage group (68). The refrigerant evaporation temperature is set lower in this order.
- each heat transfer tube (60) When the adsorption heat exchanger (20) is a condenser, each heat transfer tube (60) has a first passage group (66), a second passage group (67), and a third passage group (68). The refrigerant condensation temperature is set higher in this order. In this adsorption heat exchanger (20), the refrigerant flow rate in each heat transfer tube (60) is increased in the order of the first passage group (66), the second passage group (67), and the third passage group (68). You can! /
- the present invention is useful for adsorption heat exchange in which an adsorbent is supported on fins.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004132467A JP3788468B2 (ja) | 2004-04-28 | 2004-04-28 | 調湿装置 |
JP2004-132467 | 2004-04-28 |
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WO2005106353A1 true WO2005106353A1 (ja) | 2005-11-10 |
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PCT/JP2005/007843 WO2005106353A1 (ja) | 2004-04-28 | 2005-04-25 | 調湿装置 |
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WO (1) | WO2005106353A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106152347A (zh) * | 2016-08-23 | 2016-11-23 | 合肥天鹅制冷科技有限公司 | 多级制冷除湿控温装置 |
CN106288474A (zh) * | 2016-10-21 | 2017-01-04 | Tcl德龙家用电器(中山)有限公司 | 移动空调器组件、移动空调器及控制方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6085455B2 (ja) * | 2012-12-03 | 2017-02-22 | ダイキン工業株式会社 | 除湿装置 |
CN110486860A (zh) * | 2019-08-20 | 2019-11-22 | 宁波瑞丰模具科技有限公司 | 一种预冷装置除湿机 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5522440Y2 (ja) * | 1975-05-09 | 1980-05-28 | ||
JPH02254269A (ja) * | 1989-03-27 | 1990-10-15 | Hitachi Ltd | フインチューブ式熱交換器 |
JP2003161465A (ja) * | 2001-11-26 | 2003-06-06 | Daikin Ind Ltd | 調湿装置 |
-
2004
- 2004-04-28 JP JP2004132467A patent/JP3788468B2/ja not_active Expired - Fee Related
-
2005
- 2005-04-25 WO PCT/JP2005/007843 patent/WO2005106353A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5522440Y2 (ja) * | 1975-05-09 | 1980-05-28 | ||
JPH02254269A (ja) * | 1989-03-27 | 1990-10-15 | Hitachi Ltd | フインチューブ式熱交換器 |
JP2003161465A (ja) * | 2001-11-26 | 2003-06-06 | Daikin Ind Ltd | 調湿装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106152347A (zh) * | 2016-08-23 | 2016-11-23 | 合肥天鹅制冷科技有限公司 | 多级制冷除湿控温装置 |
CN106288474A (zh) * | 2016-10-21 | 2017-01-04 | Tcl德龙家用电器(中山)有限公司 | 移动空调器组件、移动空调器及控制方法 |
Also Published As
Publication number | Publication date |
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JP3788468B2 (ja) | 2006-06-21 |
JP2005315484A (ja) | 2005-11-10 |
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