EP2116781B1 - Dehumidifier - Google Patents
Dehumidifier Download PDFInfo
- Publication number
- EP2116781B1 EP2116781B1 EP09250555.1A EP09250555A EP2116781B1 EP 2116781 B1 EP2116781 B1 EP 2116781B1 EP 09250555 A EP09250555 A EP 09250555A EP 2116781 B1 EP2116781 B1 EP 2116781B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reconditioning
- air
- reconditioning air
- condensing
- heat exchange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
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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
- F24F3/1411—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1423—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
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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
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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
- F24F3/1411—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
- F28F3/086—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning having one or more openings therein forming tubular heat-exchange passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0275—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple branch pipes
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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
- F24F2003/144—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 by dehumidification only
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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
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1032—Desiccant wheel
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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
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1068—Rotary wheel comprising one rotor
Definitions
- the present invention relates to a dehumidifier and, more particularly, to a dehumidifier, which is capable of increasing heat exchange efficiency and improving the flow of fluid within a condensing heat exchanger for cooling reconditioning air by improving the duct of the condensing heat exchanger.
- dehumidifiers can be classified according to their operation method as dehumidifiers using a cooling cycle and dehumidifiers using a desiccant rotor.
- Dehumidifiers using a cooling cycle are problematic in that a compressor must be provided, and the compressor generates noise and occupies space. Accordingly, dehumidifiers using a desiccant rotor are more common nowadays.
- the desiccant rotor has the property of absorbing moisture in the air and dehumidifies while transmitting indoor air therethrough.
- the desiccant which has absorbed the moisture is reconditioned using hot air.
- the air that has been used to recondition the desiccant rotor has high temperature and high humidity and is discharged to the outside.
- the dehumidifier may be placed at a position desired by a user.
- a condensing heat exchanger for removing the moisture from the hot, moist air is generally provided in a space between an indoor air intake port and the desiccant rotor. That is, the humidity is lowered based on the principle that moisture within the hot, moist air is condensed through heat exchange between the hot, moist air and normal-temperature air.
- the shape of a duct within the condensing heat exchanger is very important. Accordingly, a plurality of heat exchange plates is used in order to increase the heat exchange area.
- the conventional condensing heat exchanger is problematic in that the flow of fluid within the condensing heat exchanger is not regular.
- JP 11-300145 , JP 11-333239 and JP 2001-263977 discuss dehumidifiers in which a condenser cools air which has been used to regenerate a dehumidification rotor.
- the invention provides a dehumidifier as set out in claim 1.
- a dehumidifier includes a main body, including a dehumidification passage in which indoor air is sucked in and the sucked-in indoor air is dehumidified and a reconditioning passage in which reconditioning air circulates, a dehumidification rotor, comprising a dehumidification portion configured to dehumidify the indoor air and a reconditioning portion reconditioned using the reconditioning air, and a condensing heat exchanger in which a plurality of heat exchange plates, each comprising a plurality of condensing ducts, is arranged in parallel.
- the condensing ducts are configured so that the reconditioning air passed through the reconditioning portion is sucked in through upper parts of the condensing ducts and the sucked-in reconditioning air is discharged through lower parts of the condensing ducts.
- the dehumidifier having the above construction according to the present invention has the following advantages.
- the reconditioning air introduction units of the heat exchange plates connected to each other in parallel are configured to communicate with each other.
- the flow of air within each of the heat exchange plates can be made uniform, and the flow of air within the condensing heat exchanger can be made uniform. Accordingly, there are advantages in that the dehumidification performance can be improved and noise generated by the flow of reconditioning air can be reduced.
- the reconditioning air discharge units of the condensing heat exchanger are formed in the circumferential portion of the condensing heat exchanger. Accordingly, there are advantages in that the heat exchange area can be maximized and the size of a dehumidifier can be made thin.
- the area of the lower space is changed depending on the position of the reconditioning air discharge units or the position of the reconditioning air introduction units is variously formed. Accordingly, the flow of air within the condensing heat exchanger can be uniformly maintained.
- Fig. 1 is a perspective view of a dehumidifier according to a first exemplary embodiment of the present invention
- Fig. 2 is an exploded perspective view of the major elements of the dehumidifier shown in Fig. 1 .
- the dehumidifier according to the present exemplary embodiment is configured to suck in indoor air, to absorb moisture from the indoor air, and to discharge dehumidified indoor air.
- the dehumidifier includes air intake units 4 and an air discharge unit 6 formed in a main body 2.
- the main body 2 includes, as shown in Fig. 2 , a base 10, a rear casing 20 coupled to the rear side of the base 10, a front casing 30 placed in front of the rear casing 20, and a front panel 40 coupled to the front casing 30.
- the base 10 forms the bottom of the main body 2.
- Wheel assemblies 11 are placed within the base 8.
- Each of the wheel assemblies includes a wheel for helping the movement of the dehumidifier and a wheel support to which the wheel is rotatably coupled.
- the rear casing 20 is configured to form a rear outward appearance of the dehumidifier.
- the air discharge unit 6 for discharging indoor air, dehumidified within the main body 2, to the outside of the main body 2 is formed in the rear casing 20.
- the front casing 30 is configured to form the front face of the dehumidifier. Air intake holes 35 for sucking in the indoor air into the main body 2 are formed in the front casing 30. Further, a control unit 36, including a control portion for operating and manipulating the dehumidifier and a display unit for displaying the information of the dehumidifier, is placed on the top plate of the front casing 30.
- the front panel 40 is configured to form a front outward appearance of the dehumidifier.
- the air intake units 4 for sucking the indoor air into the main body 2 (in particular, the air intake holes 35 of the front casing 30) are formed in the front panel 40.
- the indoor air sequentially passes through the air intake units 4 of the front panel 40 and the air intake holes 35 of the front casing 30 and then enters the main body 2.
- the indoor air is dehumidified within the main body 2 and is then discharged to the outside through the air discharge unit 6 of the rear casing 20.
- a ventilator 50, a dehumidification rotor 60, a reconditioning fan 90, a reconditioning heater 100, and a condensing heat exchanger 200 are placed within the main body 2.
- the ventilator 50 sucks in the indoor air through the air intake units 4 and then discharges the indoor air to the air discharge unit 6 via the main body 2.
- the ventilator 50 includes a fan housing 53, a fan motor 54, and a fan 55.
- the rear face of the fan housing 53 is perforated so that the fan housing 53, together with the rear casing 20, form a ventilation duct. Air intake holes are formed in the front face of the fan housing 53. A discharge unit is perforated in the top surface of the fan housing 53.
- the fan motor 54 may be placed in either the fan housing 53 or the rear casing 20.
- the fan 55 (hereinafter referred to as a 'dehumidification fan') is coupled to the rotation shaft of the fan motor 54 and is rotated between the fan housing 53 and the rear casing 20.
- the dehumidification rotor 60 functions to adsorb moisture in the indoor air sucked in by the ventilator 50 and to recycle the absorbed moisture at low temperature.
- the dehumidification rotor 60 is placed between the ventilator 50 and the condensing heat exchanger 200.
- the dehumidification rotor 60 includes a desiccant 61 and a desiccant wheel 62 to which the desiccant 61 is fixed.
- the desiccant 61 adsorbs moisture within the indoor air while the indoor air passes through the dehumidification rotor 60 and recycles the absorbed moisture.
- the desiccant wheel 62 surrounds the circumference of the desiccant 61.
- the desiccant 61 is generally configured to have a circular plate and is surrounded by the desiccant wheel 62.
- a fixing hole for fixing the desiccant 61 to the center of the dehumidification rotor 60 is formed in the desiccant 61.
- the desiccant 61 is alternately wound up in a cylindrical shape using paperboard and corrugated paper made of ceramics fiber and may be made of meso-silica (Si02), such as nano-carbon balls (NCBs).
- the NCBs have excellent hygroscopic properties owing to well-developed pores and surface area, and are capable of being reconditioned at a low temperature of about 60°C or less.
- NCBs have a spherical carbon structure 200nm to 500nm in diameter that includes a spherical hollow core unit and a mesoporous carbon cell unit. NCBs include fine pores each having a diameter of 2nm to 50nm. The pores of typical activated carbon have a wide surface area (BET), a wide mesoporous area, and do not clog.
- BET surface area
- the desiccant 61 is partitioned into a portion to which moisture within indoor air is absorbed while the indoor air passes through the desiccant 61 (hereinafter referred to as a 'dehumidification portion'), and a portion from which moisture is evaporated into reconditioning air while the reconditioning air passes through the desiccant 61 (hereinafter referred to as a 'reconditioning portion').
- the respective areas alternate by rotation of the desiccant 61 so that moisture is absorbed and evaporated.
- the reconditioning portion is opposite to the reconditioning heater 100 and is configured to transmit reconditioning air therethrough. Portions other than the reconditioning portion become the dehumidification portion through which the indoor air passes.
- the desiccant wheel 62 includes an edge unit configured to have a ring shape and to surround the circumference of the desiccant 61, a fixing unit configured to fix the desiccant 61, and a connection unit configured to connect the edge unit and the fixing unit and radially formed between the edge unit and the fixing unit.
- a rotor supporter 68 for rotatably supporting the dehumidification rotor and a rotor frame 69 on which the rotor supporter 68 is mounted are placed within the main body 1.
- the rotor frame 69 functions as a kind of barrier for partitioning the inside of the main body 2 into a rear-side space in which the ventilator 50 is placed and a front-side space in which the condensing heat exchanger 200 is placed.
- a perforation unit 75 through which the rotor supporter 68 perforates is perforated in the rotor frame 69 in front of the air intake holes of the ventilator 50.
- the rotor frame 69 has aperture units formed in front of the reconditioning fan 90.
- the aperture units of the rotor frame 62 function to make a duct 280, allowing air introduced therein to be introduced into the reconditioning fan 90, communicate with the reconditioning fan 90.
- a control unit 78 for controlling the dehumidifier is placed in the rotor frame 69.
- the dehumidifier according to the present exemplary embodiment further includes a dehumidification rotor motor 87 for rotating the dehumidification rotor 60.
- the reconditioning fan 90 functions to ventilate air for reconditioning the dehumidification rotor 60 (hereinafter referred to as 'reconditioning air') to the dehumidification rotor 60.
- the reconditioning fan 90 includes a fan housing 91, a fan 92 rotatably placed in the fan housing 91, an orifice 93 placed in the fan housing 91 and configured to introduce the air sucked in by the fan 92, and a fan motor 94 placed in the fan housing 91 and configured to rotate the fan 92.
- the reconditioning heater 100 functions to heat air ventilated to the dehumidification rotor 60 by the reconditioning fan 90 and to supply the air of a high temperature to the dehumidification rotor 60.
- the reconditioning heater 100 includes an electric heater 101, a heater cover 102 configured to cover the electric heater 101 and to communicate with the reconditioning fan 90, and a blocking film 103 coupled to the heater cover 102 so that the blocking film 103 is placed between the heater cover 102 and the dehumidification rotor 60.
- the blocking film 103 is a kind of air guide for preventing air, heated by the electric heater 101, from leaking to the surroundings between the electric heater 101 and the dehumidification rotor 60 so that the air is moved toward the dehumidification rotor 60.
- An aperture unit is formed in a face of the blocking film 103, which faces the dehumidification rotor 60.
- the condensing heat exchanger 200 functions to condense the reconditioning air that has reconditioned the dehumidification rotor 60 through heat exchange with the indoor air sucked in by the ventilator 50.
- the condensing heat exchanger 200 includes a plurality of heat exchange plates 220, 240, and 260 which are arranged front and rear in a direction where the indoor air is sucked in.
- the condensing heat exchanger 200 include condensing ducts 226, 246, and 256 through which the reconditioning air that has reconditioned the dehumidification rotor 60 passes and heat absorption ducts 232, 253, and 272 through which the indoor air sucked in by the ventilator 50 passes.
- the condensing heat exchanger 200 is made of synthetic resin material in order to facilitate the shaping of the condensing ducts 226, 246, and 266.
- Fig. 3 is a perspective view of the condensing heat exchanger according to a first exemplary embodiment of the present invention
- Fig. 4 is a rear view of the condensing heat exchanger shown in Fig. 3
- Fig. 5 is a plan cross-sectional view of the condensing heat exchanger shown in Fig. 3
- Fig. 6 is an exploded perspective view of the condensing heat exchanger shown in Fig. 3 .
- the dehumidifier of the present invention includes the condensing heat exchanger 200 for removing the moisture of reconditioning air.
- the condensing heat exchanger 200 of the present exemplary embodiment includes the plurality of heat exchange plates 220, 240, and 260 and a duct 280.
- each of the heat exchange plates 220, 240, and 260 and the duct 280 is described, and a combination of the condensing heat exchanger 200 and the flow of air therein are described.
- the heat exchange plates 220, 240, and 260 include a first heat exchange plate 220, a second heat exchange plate 240, and a third heat exchange plate 260. It is however to be noted that the number of heat exchange plates may vary depending on the state of reconditioning air.
- the first heat exchange plate 220 includes a first reconditioning air introduction unit 222, a first reconditioning air channel unit 234, a plurality of first condensing ducts 226, a plurality of first heat absorption ducts 232, a first lower space 230a, a first condensed water discharge unit 230, and first reconditioning air discharge units 224.
- the first reconditioning air introduction unit 222 is perforated in a face into which the reconditioning air is introduced, which belongs to the first heat exchange plate 220, and is configured to function as an introduction unit for introducing the reconditioning air, passed through the reconditioning portion of the dehumidification rotor 61, into the condensing heat exchanger 200.
- the first reconditioning air introduction unit 222 has a shape which is opposite to the position of the reconditioning portion of the dehumidification rotor 61 and is configured to have a width increasing in proportion to an increasing distance from the center 222a of the condensing heat exchanger 200.
- the center 222a of the condensing heat exchanger 200 refers to a position on the condensing heat exchanger 200 corresponding to the center of the desiccant 61.
- the dehumidification rotor 60 is configured to generally have a circular shape and is configured to dehumidify the indoor air and to be reconditioned by the reconditioning air while rotating. Therefore, the reconditioning portion in which the reconditioning air reconditions the desiccant 61 has a fan shape. Consequently, the reconditioning air introduction unit 222 of the first heat exchange plate 220 has a fan shape in response to the shape of the reconditioning portion, thereby making smooth the suction of reconditioning air. Accordingly, the flow of reconditioning air within the condensing heat exchanger 200 can become uniform, and the condensing efficiency of the reconditioning air can be increased.
- the reconditioning portion of the desiccant 61 may be formed in various positions on the circular desiccant 61. In the present exemplary embodiment, however, it is illustrated that the reconditioning portion is placed in the upper center of the desiccant 61.
- the first reconditioning air introduction unit 222 is placed in the upper center of the first heat exchange plate 220 based on the reconditioning portion placed in the upper center of the desiccant 61. Accordingly, the reconditioning air introduced through the first reconditioning air introduction unit 222 can be uniformly distributed and flown to the plurality of first condensing ducts 226 to be described later.
- the first reconditioning air channel unit 234 is perforated in a face opposite to the face where the first reconditioning air introduction unit 222 is formed, which belongs to the first heat exchange plate 220.
- the first reconditioning air channel unit 234 is configured to communicate with a second reconditioning air introduction unit 242 to be described later and is configured to discharge a part of the reconditioning air, introduced through the first reconditioning air introduction unit 222, to the second reconditioning air discharge units 244 of the second heat exchange plate 240 to be described later.
- the first reconditioning air channel unit 234 may have the same shape as that of the first reconditioning air introduction unit 222 so that it is opposite to the first reconditioning air introduction unit 222. In this case, there is an advantage in that the flow of reconditioning air becomes uniform because the flow of the reconditioning air can be introduced in a straight line.
- at least one of the shapes of the second reconditioning air introduction unit 242, a second reconditioning air channel unit 254, and a third reconditioning air introduction unit 262 to be described later may have the same shape as that of the first reconditioning air introduction unit 222 so that it is opposite to the first reconditioning air introduction unit 222.
- each of the first, second, and third reconditioning air introduction units 222, 242, and 262 and the first and second reconditioning air channel units 234 and 254 may have the area which gradually decreases in a direction where reconditioning air proceeds. Accordingly, the flow of reconditioning air can become smooth, and the heat exchange area of reconditioning air and indoor air can be increased.
- the first reconditioning air channel unit 234 is configured to have a long streamline shape in the left and right directions based on the shape of the upper edge portion of the first heat exchange plate 220.
- the shape and position of the first reconditioning air channel unit 234 correspond to those of the second reconditioning air introduction unit 242 to be described later, so reconditioning air can well flow from the first heat exchange plate 220 to the second heat exchange plate 240.
- the plurality of first condensing ducts 226 respectively has a long pipe shape in the length direction and includes inlet units 226a into which reconditioning air is introduced and outlet units 226b from which the reconditioning air is discharged.
- the position of the inlet unit 226a of each of the first condensing ducts 226 may vary depending on the position of the first reconditioning air introduction unit 222.
- the first reconditioning air introduction unit 222 has a fan shape. Therefore, the inlet units 226a are placed on a line extending from the line of a radius 222b having the fan shape. Accordingly, the air introduced through the first reconditioning air introduction unit 222 can smoothly flow downward along the first condensing ducts 226.
- first condensing ducts 226 formed at both ends, which belong to the first condensing ducts 226, are placed on a line that is downward bent on the line of the radius 222b because, if the inlet units 226a are placed on the line of the radius 222b having the fan shape, reconditioning air may not well enter the inlet units 226a. Accordingly, the line where the inlet units 226a are placed generally has an M shape.
- baffle ducts 228 may be formed between the first condensing ducts 226.
- Plural columns of the first condensing ducts 226 are placed in parallel on a plane in the upper and down directions.
- first reconditioning air discharge units 224 are placed in the right and left circumferential portions of the lower end of the first heat exchange plate 220, there is a difference in the distance between the plurality of first condensing ducts 226 and the first reconditioning air discharge units 224. Accordingly, there occurs a difference in the distance of flow until the reconditioning air introduced into the first reconditioning air introduction unit 222 passes through the plurality of first condensing ducts 226 and is then discharged through the first reconditioning air discharge units 224. In this case, there occurs imbalance in the flow of the entire reconditioning air flowing through the first heat exchange plate 220.
- baffle ducts 228 may be formed in various ways. In the present exemplary embodiment, however, it is illustrated that baffle ducts, connecting all the first condensing ducts 226 while passing through the center 222a of the first heat exchange plate, and a pair of baffle ducts, connecting a part of the first condensing ducts 226 on the upper and lower sides of the above-described baffle duct, are formed.
- a mesh plate in which a plurality of holes through which reconditioning air can flow is perforated may be placed in inlet units placed on the line of the radius 222b of the fan shape close to the reconditioning air discharge units 224, which belong to the inlet units 226a.
- the velocity of reconditioning air introduced into the inlet units 226a close to the reconditioning air discharge units 224 becomes slow, and the velocity of the flow of reconditioning air on the plurality of first condensing ducts can become uniform.
- the respective outlet units 226b are formed under the first condensing ducts 226.
- the air passed through the first condensing ducts 226 is discharged through the plurality of outlet units 226b.
- the outlet units 226b may be arranged in various shapes. That is, the outlet units 226b may be arranged in a straight line or may be arranged on an upward tilted line on the basis of the first condensed water discharge unit 230 to be described later.
- the plurality of first heat absorption ducts 232 are formed between the plurality of first condensing ducts 226.
- the first condensing ducts 226 are perforated in the front and rear directions between the first condensing ducts 226 such that the indoor air can flow between the first heat absorption ducts 232.
- the indoor air can be subject to heat exchange with high-temperature and high-humidity reconditioning air, passed through the first heat absorption ducts 232, while the indoor air passes through the first condensing ducts 226.
- Moisture within the reconditioning air is condensed through the heat exchange between the high-temperature and high-humidity reconditioning air and the indoor air of normal temperature.
- the first lower space 230a is formed between the plurality of outlet units 226b and the first reconditioning air discharge units 224.
- the first lower space 230a functions to accommodate the air passed through the plurality of outlet units 226b and to discharge the accommodated air through the first reconditioning air discharge units 224.
- the first condensed water discharge unit 230 in which the moisture condensed in the first condensing ducts 226 drops down to the first lower space 230a and is then discharged to the outside is formed in the first lower space 230a.
- the bottom of the first lower space 230a is upward tilted on the basis of the first condensed water discharge unit 230. Accordingly, the condensed water can be easily discharged to the first condensed water discharge unit 230.
- the first reconditioning air discharge units 224 function as exits from which the air passed through the first lower space 230a is discharged to the outside.
- the first reconditioning air discharge units 224 are formed on one side of the circumferential portion of the first heat exchange plate 220. Accordingly, the thickness of the entire condensing heat exchanger 200 can be reduced, and the outward appearance of the dehumidifier can be made thin.
- the first reconditioning air discharge units 224 are formed in the left and right circumferential portions of the lower end of the first heat exchange plate 200.
- the second heat exchange plate 240 is placed in the rear of the first heat exchange plate 220 in a direction where the reconditioning air is introduced such that the reconditioning air passed through the first heat exchange plate 220 can pass through the second heat exchange plate 240.
- the entire construction and functions of the second heat exchange plate 240 are similar to those of the first heat exchange plate 220. Hereinafter, differences between the second heat exchange plate 240 and the first heat exchange plate 220 are for the most part described.
- the second heat exchange plate 240 has the same construction as that of the first heat exchange plate 220 except for the second reconditioning air introduction unit 242 and the second condensing ducts 246.
- the second reconditioning air introduction unit 242 is perforated in a face in which the reconditioning air is introduced into the second heat exchange plate 240 and is configured to communicate with the first reconditioning air channel unit 234. Accordingly, the second reconditioning air introduction unit 242 functions as an inlet into which a part of the reconditioning air introduced into the first heat exchange plate 220 is introduced.
- a plurality of condensing ducts is formed under the area occupied by a reconditioning air introduction unit and is configured to introduce the flow of reconditioning air up and down. Accordingly, in the case where the area of the reconditioning air introduction unit is wide, the area of the condensing ducts is inevitably small and, therefore, the heat exchange efficiency of the entire condensing heat exchanger is lowered.
- the second reconditioning air introduction unit 242 has a long streamline shape right and left based on the shape of the upper circumferential portion of the second heat exchange plate 240, unlike in the first reconditioning air introduction unit 222.
- the second reconditioning air introduction unit 242 has the same shape as that of the first reconditioning air channel unit 234 and communicates with the first reconditioning air channel unit 234. Accordingly, there is an advantage in that the heat exchange area of indoor air and reconditioning air is widened because the area occupied by the second condensing ducts 246 to be described later is increased.
- the second reconditioning air discharge units 244 to be described later are placed on the right and left circumferential portions of the lower end of the second heat exchange plate 240, there may occur imbalance in the flow of reconditioning air flowing through the above-described second heat exchange plate 240. Therefore, the area formed by the second reconditioning air introduction unit 242 may be wide as the second reconditioning air introduction unit 242 becomes far from the second reconditioning air discharge units 244. Accordingly, the flow of the reconditioning air flowing through the second heat exchange plate 240 can become uniform.
- Each of the plurality of second condensing ducts 246 has a long pipe shape in the length direction.
- An inlet unit 246a into which the reconditioning air is introduced and an outlet unit 246b from which the reconditioning air is discharged are formed in each of the plurality of second condensing ducts 246.
- the plurality of second condensing ducts 246 functions to perform heat exchange on reconditioning air other than the reconditioning air flowing into the third heat exchange plate 260, which belongs to the reconditioning air introduced through the second reconditioning air introduction unit 242.
- the position of the inlet unit 246a of each of the second condensing ducts 246 may vary depending on the position of the second reconditioning air introduction unit 222. In the present exemplary embodiment, however, that, as described above, the second reconditioning air introduction unit 242 has a long streamline shape in the right and left directions. The inlet units 246a are placed on the line equal to the lower end of the streamline shape.
- the area occupied by the second condensing ducts 246 is greater than that occupied by the first condensing ducts 226. Accordingly, the heat exchange area of the second heat exchange plate 240 is greater than that of the first heat exchange plate 220.
- baffle ducts 228 may also be formed in the second condensing ducts 246, as in the first condensing ducts 226.
- the outlet units 246b have the same construction and position as those of the outlet units 226b.
- the third heat exchange plate 260 is placed in the rear of the second heat exchange plate 240 in a direction where reconditioning air is introduced such that a part of the reconditioning air passed through the second reconditioning air introduction unit 242 can be introduced into the third heat exchange plate 260.
- the entire construction and functions of the third heat exchange plate 260 are similar to those of the second heat exchange plate 240.
- the entire construction of the third heat exchange plate 260 is identical to that of the second heat exchange plate 240 except that the second reconditioning air channel unit 254 is not formed in the third heat exchange plate 260.
- reconditioning air which has been introduced into the third heat exchange plate 260 through the second reconditioning air channel unit 254 without being subject to heat exchange in the second heat exchange plate 240, is all subject to heat exchange in the third heat exchange plate 260.
- a third reconditioning air channel unit placed at a position corresponding to the third reconditioning air introduction unit 262 is not formed in the third heat exchange plate 260.
- the reconditioning air introduced through the third reconditioning air introduction unit 262 is all introduced into a plurality of third condensing ducts 266.
- the remaining elements have the same construction as those of the second heat exchange plate 240.
- the duct 280 functions to force the air, discharged through the reconditioning air discharge units 224, 244, and 264, to flow into the reconditioning fan 90. Accordingly, the duct 280 may have a pipe that connects the reconditioning air discharge units 224, 244, and 264 and the reconditioning fan 90. The duct 280 may have a variety of shapes and constructions depending on the positions of the reconditioning air discharge units 224, 244, and 264 and the reconditioning fan 90.
- the duct 280 includes inlet units enough to accommodate all the reconditioning air discharge units 224, 244, and 264, and the respective inlet units are fit into the reconditioning air discharge units 224, 244, and 264.
- the duct 280 is lengthily formed up and down in parallel to the circumferential portion of the right or left side of the condensing heat exchanger.
- the duct 280 may be formed to adjoin the circumferential portion of the right or left side of the condensing heat exchanger 200.
- the ducts formed in the condensing heat exchangers are spaced apart one another at regular intervals. Accordingly, the respective heat absorption ducts 232, 252, and 272 are formed between the ducts and the outermost condensing duct forming the circumferential portion of the condensing heat exchanger 200, which belongs to the plurality of condensing ducts 226, 246, and 266.
- a process of condensing reconditioning air and a process of dehumidifying indoor air in the dehumidifier constructed above according to the first exemplary embodiment of the present invention are described below.
- reconditioning air circulates through a reconditioning passage when the reconditioning fan 90 is rotated. That is, the reconditioning air passing through the reconditioning fan 90 is heated by the reconditioning heater 100, thereby making the air have a high temperature.
- the high-temperature reconditioning air reconditions the reconditioning portion of the dehumidification rotor 60 and then enters the first reconditioning air introduction unit 222 of the condensing heat exchanger 200.
- a part of the reconditioning air introduced into the first reconditioning air introduction unit 222 is introduced into the first condensing ducts 226, and the remaining is introduced into the second reconditioning air introduction unit 242 through the first reconditioning air channel unit 234.
- a part of the reconditioning air introduced into the second reconditioning air introduction unit 242 is introduced into the second condensing ducts 246 and the remaining is introduced into the third condensing ducts 266 via the second reconditioning air channel unit 254 and the third reconditioning air introduction unit 262.
- Moisture within the reconditioning air is condensed during the heat exchange process, and the condensed moisture is introduced into a drain fan 140 through the condensing ducts 226, 246, and 256 and the condensed water discharge units 230, 250, and 270 formed in the respective lower spaces.
- the reconditioning air passed through each of the condensing ducts 226, 246, and 256 is introduced into the duct 280 through each of the reconditioning air discharge units 224, 244, and 264 via the respective lower spaces 230a, 250a, and 270a.
- the reconditioning air is introduced into the reconditioning fan 90 coupled to the duct 280.
- the reconditioning air introduced into the reconditioning fan 90 passes through the reconditioning heater 100 and then circulates again while reconditioning the reconditioning portion of the dehumidification rotor 60.
- Indoor air is sucked in by the air intake units 4 of the main body 2 when the ventilator 50 is rotated.
- the indoor air is subject to heat exchange with the reconditioning air while passing through the heat absorption ducts 232, 252, and 272 of the condensing heat exchanger 200.
- Moisture included in the indoor air is absorbed while the indoor air passes through the dehumidification portion of the desiccant 61.
- the indoor air from which the moisture has been removed passes through the ventilator 50 and is then discharged to the interior of a room through the air discharge unit 6.
- Fig. 7 is a perspective view of a condensing heat exchanger according to a second exemplary embodiment of the present invention.
- the entire construction of the condensing heat exchanger according to the second exemplary embodiment of the present invention is described below with reference to Fig. 7 .
- the entire construction of the second exemplary embodiment of the present invention is similar to that of the first exemplary embodiment. Differences between the second exemplary embodiment and the first exemplary embodiment are chiefly described.
- the first reconditioning air introduction unit 322 of a first heat exchange plate 320 has a shielded portion, ranging from the center 322a of the condensing heat exchanger to an upward portion of the center 322a at a specific interval.
- a dehumidification rotor 60 has a rotation unit at its center. In this case, reconditioning air cannot be introduced into the first reconditioning air introduction units 322 through a portion where the rotation unit of the dehumidification rotor 60 is placed. Accordingly, the portion where the rotation unit of the dehumidification rotor is placed, which belongs to the first reconditioning air introduction units 322, is shielded.
- the area where the reconditioning air is subject to heat exchange with indoor air can be increased by raising the height of each of first condensing ducts 326 of the shielded portion.
- inlet units 326a of the first condensing ducts 326 are placed on a shielding line 322c of the shielded portion.
- each of condensing ducts 332, 352, and 372 has a straight line.
- Lower spaces 330a, 350a, and 370a are formed at the respective lower ends of the condensing ducts 332, 352, and 372 and the heat exchange plates 320, 340, and 360.
- the flow of the reconditioning air becomes smooth by increasing the lower spaces 330a, 350a, and 370a on positions where respective reconditioning air discharge units 224, 244, and 264 are placed.
- the sides where the lower spaces 330a, 350a, and 370a are wide have a low pressure, so the velocity of the reconditioning air on the condensing ducts is relatively decreased.
- the sides where the lower spaces 330a, 350a, and 370a are narrows have a high pressure, so the velocity of the reconditioning air on the condensing ducts is fast. Accordingly, the flow of velocity becomes uniform depending on the distance from the reconditioning air discharge units 324, 344, and 364, thereby making smooth the flow of the reconditioning air.
- Fig. 8 is a plan cross-sectional view of the condensing heat exchanger according to a third exemplary embodiment of the present invention.
- the entire construction of the condensing heat exchanger according to the third exemplary embodiment of the present invention is described below with reference to Fig. 8 .
- the entire construction of the third exemplary embodiment of the present invention is similar to that of the first exemplary embodiment. Differences between the third exemplary embodiment and the first exemplary embodiment are for the most part described.
- each of the reconditioning air discharge units 224, 244, and 264 is placed on one of the right and lefts sides of the condensing heat exchanger, there may be imbalance in the flow of air flowing through the condensing ducts.
- reconditioning air passed through condensing ducts 426, 446, and 466 placed close to the respective reconditioning air discharge units 224, 244, and 264, is rapidly discharged to the reconditioning air discharge units 224, 244, and 264.
- Regenerated air passed through the condensing ducts 426, 446, and 466 placed far from the respective reconditioning air discharge units 224, 244, and 264, is relatively slowly discharged to the reconditioning air discharge units 224, 244, and 264. Accordingly, there occurs imbalance in the flow of air between the condensing ducts 426, 446, and 466.
- the cross area of each of the condensing ducts 426, 446, and 466 may be increased in proportion to the distance from each of the reconditioning air discharge units 224, 244, and 264.
- a great amount of air flows into the condensing ducts 426, 446, and 466 placed far from the respective reconditioning air discharge units 224, 244, and 264, and a small amount of air flows into the condensing ducts 426, 446, and 466 placed close to the respective reconditioning air discharge units 224, 244, and 264. Accordingly, the entire flow of air can be balanced.
- Fig. 9 is a perspective view of a condensing heat exchanger according to a fourth exemplary embodiment of the present invention.
- the entire construction of the condensing heat exchanger according to the fourth exemplary embodiment of the present invention is described below with reference to Fig. 9 .
- the entire construction of the fourth exemplary embodiment of the present invention is similar to that of the first exemplary embodiment. Differences between the fourth exemplary embodiment and the first exemplary embodiment are chiefly described.
- a first reconditioning air introduction unit 522 according to the fourth exemplary embodiment of the present invention is rotated in an opposite direction to the first reconditioning air discharge units 224 at a specific angle. Accordingly, imbalance occurring in the flow in the case where the first reconditioning air discharge units 224 are placed on one of the right and left sides of a first heat exchange plate 520 as described above can be solved.
- the difference in the distance between the plurality of inlet units 526a of respective condensing ducts 526 and the first reconditioning discharge units 224 can be reduced.
- a distance where reconditioning air introduced into the condensing ducts 526 through the first reconditioning air introduction unit 522 passes through the reconditioning air discharge units 224 is constant. Accordingly, the flow of the reconditioning air of the first heat exchange plate 520 can become smooth.
- Fig. 10 is a rear view of a condensing heat exchanger according to a fifth exemplary embodiment of the present invention
- Fig. 11 is an exploded perspective view of the condensing heat exchanger according to the fifth exemplary embodiment of the present invention.
- the first, second, and third reconditioning air introduction units 622, 642, and 662 of first, second, and third heat exchange plates 620, 640, and 660 are formed on the upper parts of the first, second, and third heat exchange plates 620, 640, and 660, and first, second, and third reconditioning air discharge units 624, 644, and 664 of the first, second, and third heat exchange plates 620, 640, and 660 are perforated in the lower parts of the first, second, and third heat exchange plates 620, 640, and 660 (in particular, in a direction where air flows).
- first, second, and third reconditioning air discharge units 624, 644, and 664 of the first, second, and third heat exchange plates 620, 640, and 660 are perforated at the lower parts of the rear faces of the first, second, and third heat exchange plates 620, 640, and 660.
- a first discharging reconditioning air channel unit 634 and a second discharging reconditioning air channel unit 654 are respectively perforated in such a way as to be opposite to the second and third reconditioning air discharge units 644 and 664 on the respective front faces of the first heat exchange plate 620 and the second heat exchange plate 640.
- the first discharging reconditioning air channel unit 634 communicates with the second reconditioning air discharge unit 644, and the second discharging reconditioning air channel unit 654 communicates with the third reconditioning air discharge unit 664.
- reconditioning air passed through the third condensing ducts 266 is introduced into a duct 680 via the third reconditioning air discharge unit 664, the second discharging reconditioning air channel unit 654, the second reconditioning air discharge unit 644, the first discharging reconditioning air channel unit 634, and the first reconditioning air discharge unit 624.
- reconditioning air passed through the second condensing ducts 246 is introduced into the duct 680 via the second reconditioning air discharge unit 644, the first discharging reconditioning air channel unit 634, and the first reconditioning air discharge unit 624.
- reconditioning air passed through the first condensing ducts 226 is introduced into the duct 680 via the first reconditioning air discharge unit 624.
- the duct 680 is formed so that it communicates with the first reconditioning air discharge unit 624.
- the duct 680 is coupled to the first reconditioning air discharge unit 624 so that it is inserted into the first reconditioning air discharge unit 624 forward and backward.
- the duct 680 is bent in response to the lower part and left and right circumferential portions of the first heat exchange plate 620.
Description
- The present invention relates to a dehumidifier and, more particularly, to a dehumidifier, which is capable of increasing heat exchange efficiency and improving the flow of fluid within a condensing heat exchanger for cooling reconditioning air by improving the duct of the condensing heat exchanger.
- In general, dehumidifiers can be classified according to their operation method as dehumidifiers using a cooling cycle and dehumidifiers using a desiccant rotor.
- Dehumidifiers using a cooling cycle are problematic in that a compressor must be provided, and the compressor generates noise and occupies space. Accordingly, dehumidifiers using a desiccant rotor are more common nowadays.
- The desiccant rotor has the property of absorbing moisture in the air and dehumidifies while transmitting indoor air therethrough. The desiccant which has absorbed the moisture is reconditioned using hot air.
- The air that has been used to recondition the desiccant rotor has high temperature and high humidity and is discharged to the outside. Here a problem arises because the dehumidifier must be placed outside a building or, if placed indoors, an additional exhaust duct must be provided.
- In the case where the hot, moist air that has reconditioned the desiccant is circulated within the dehumidifier, there is no need to provide the additional exhaust duct. There is another advantage in that the dehumidifier may be placed at a position desired by a user.
- In order to circulate the hot, moist air, the moisture needs to be removed. Accordingly, a condensing heat exchanger for removing the moisture from the hot, moist air is generally provided in a space between an indoor air intake port and the desiccant rotor. That is, the humidity is lowered based on the principle that moisture within the hot, moist air is condensed through heat exchange between the hot, moist air and normal-temperature air.
- Accordingly, in order to increase the heat exchange efficiency of the condensing heat exchanger, the shape of a duct within the condensing heat exchanger is very important. Accordingly, a plurality of heat exchange plates is used in order to increase the heat exchange area.
- However, although the heat exchange area is increased using the plurality of heat exchange plates, the conventional condensing heat exchanger is problematic in that the flow of fluid within the condensing heat exchanger is not regular.
-
JP 11-300145 JP 11-333239 JP 2001-263977 - It is, therefore, desirable to provide a dehumidifier in which a plurality of heat exchange plates is connected to each other in parallel, thereby being capable of increasing the heat exchange area of a condensing heat exchanger and also making uniform the flow of fluid.
- It is further desirable to provide a heat exchanger which makes uniform the flow of air within a condensing heat exchanger by varying the area of the reconditioning air introduction units of a plurality of heat exchange plates.
- It is still further desirable to provide a dehumidifier in which the reconditioning air duct of a condensing heat exchanger is differently formed depending on the position of reconditioning air discharge units, thereby being capable of making uniform the flow of fluid within a condensing heat exchanger.
- The invention provides a dehumidifier as set out in claim 1.
- A dehumidifier according to an exemplary embodiment of the present invention includes a main body, including a dehumidification passage in which indoor air is sucked in and the sucked-in indoor air is dehumidified and a reconditioning passage in which reconditioning air circulates, a dehumidification rotor, comprising a dehumidification portion configured to dehumidify the indoor air and a reconditioning portion reconditioned using the reconditioning air, and a condensing heat exchanger in which a plurality of heat exchange plates, each comprising a plurality of condensing ducts, is arranged in parallel. The condensing ducts are configured so that the reconditioning air passed through the reconditioning portion is sucked in through upper parts of the condensing ducts and the sucked-in reconditioning air is discharged through lower parts of the condensing ducts.
- The details of other embodiments are included in the detailed description and the drawings.
- The dehumidifier having the above construction according to the present invention has the following advantages.
- First, the reconditioning air introduction units of the heat exchange plates connected to each other in parallel are configured to communicate with each other. Thus, the flow of air within each of the heat exchange plates can be made uniform, and the flow of air within the condensing heat exchanger can be made uniform. Accordingly, there are advantages in that the dehumidification performance can be improved and noise generated by the flow of reconditioning air can be reduced.
- Second, the reconditioning air discharge units of the condensing heat exchanger are formed in the circumferential portion of the condensing heat exchanger. Accordingly, there are advantages in that the heat exchange area can be maximized and the size of a dehumidifier can be made thin.
- Third, the area of the lower space is changed depending on the position of the reconditioning air discharge units or the position of the reconditioning air introduction units is variously formed. Accordingly, the flow of air within the condensing heat exchanger can be uniformly maintained.
- Other features and advantages of the present invention will become more apparent from the following description of some exemplary embodiments given in conjunction with the accompanying drawings, in which:
-
Fig. 1 is a perspective view of a dehumidifier according to a first exemplary embodiment of the present invention; -
Fig. 2 is an exploded perspective view of major elements of the dehumidifier according to the first exemplary embodiment of the present invention; -
Fig. 3 is a perspective view of a condensing heat exchanger according to a first exemplary embodiment of the present invention; -
Fig. 4 is a rear view of the condensing heat exchanger shown inFig. 3 ; -
Fig. 5 is a plan cross-sectional view of the condensing heat exchanger shown inFig. 3 ; -
Fig. 6 is an exploded perspective view of the condensing heat exchanger shown inFig. 3 ; -
Fig. 7 is a perspective view of a condensing heat exchanger according to a second exemplary embodiment of the present invention; -
Fig. 8 is a plan cross-sectional view of the condensing heat exchanger according to a third exemplary embodiment of the present invention; -
Fig. 9 is a perspective view of a condensing heat exchanger according to a fourth exemplary embodiment of the present invention; -
Fig. 10 is a rear view of a condensing heat exchanger according to a fifth exemplary embodiment of the present invention; and -
Fig. 11 is an exploded perspective view of the condensing heat exchanger according to the fifth exemplary embodiment of the present invention. - Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that they can be readily implemented by those skilled in the art. In describing the exemplary embodiments of the present invention, the same reference numbers are used throughout the drawings to refer to the same parts, and redundant descriptions thereof are omitted.
-
Fig. 1 is a perspective view of a dehumidifier according to a first exemplary embodiment of the present invention, andFig. 2 is an exploded perspective view of the major elements of the dehumidifier shown inFig. 1 . - The entire construction of the dehumidifier according to the first exemplary embodiment of the present invention is described below with reference to
Figs. 1 and2 . - The dehumidifier according to the present exemplary embodiment, as shown in
Fig. 1 , is configured to suck in indoor air, to absorb moisture from the indoor air, and to discharge dehumidified indoor air. The dehumidifier includesair intake units 4 and anair discharge unit 6 formed in amain body 2. - The
main body 2 includes, as shown inFig. 2 , abase 10, arear casing 20 coupled to the rear side of thebase 10, afront casing 30 placed in front of therear casing 20, and afront panel 40 coupled to thefront casing 30. - The
base 10 forms the bottom of themain body 2.Wheel assemblies 11 are placed within the base 8. Each of the wheel assemblies includes a wheel for helping the movement of the dehumidifier and a wheel support to which the wheel is rotatably coupled. - The
rear casing 20 is configured to form a rear outward appearance of the dehumidifier. Theair discharge unit 6 for discharging indoor air, dehumidified within themain body 2, to the outside of themain body 2 is formed in therear casing 20. - The
front casing 30 is configured to form the front face of the dehumidifier.Air intake holes 35 for sucking in the indoor air into themain body 2 are formed in thefront casing 30. Further, acontrol unit 36, including a control portion for operating and manipulating the dehumidifier and a display unit for displaying the information of the dehumidifier, is placed on the top plate of thefront casing 30. - The
front panel 40 is configured to form a front outward appearance of the dehumidifier. Theair intake units 4 for sucking the indoor air into the main body 2 (in particular, the air intake holes 35 of the front casing 30) are formed in thefront panel 40. - That is, the indoor air sequentially passes through the
air intake units 4 of thefront panel 40 and the air intake holes 35 of thefront casing 30 and then enters themain body 2. The indoor air is dehumidified within themain body 2 and is then discharged to the outside through theair discharge unit 6 of therear casing 20. - Nothing is formed on the front face of the
front panel 40 in order to improve the beauties of the dehumidifier, and theair intake units 4 is formed in places other than the front face of the dehumidifier. - A
ventilator 50, adehumidification rotor 60, a reconditioningfan 90, areconditioning heater 100, and a condensingheat exchanger 200 are placed within themain body 2. - The
ventilator 50 sucks in the indoor air through theair intake units 4 and then discharges the indoor air to theair discharge unit 6 via themain body 2. Theventilator 50 includes afan housing 53, afan motor 54, and afan 55. - The rear face of the
fan housing 53 is perforated so that thefan housing 53, together with therear casing 20, form a ventilation duct. Air intake holes are formed in the front face of thefan housing 53. A discharge unit is perforated in the top surface of thefan housing 53. Thefan motor 54 may be placed in either thefan housing 53 or therear casing 20. The fan 55 (hereinafter referred to as a 'dehumidification fan') is coupled to the rotation shaft of thefan motor 54 and is rotated between thefan housing 53 and therear casing 20. - The
dehumidification rotor 60 functions to adsorb moisture in the indoor air sucked in by theventilator 50 and to recycle the absorbed moisture at low temperature. Thedehumidification rotor 60 is placed between theventilator 50 and the condensingheat exchanger 200. - The
dehumidification rotor 60 includes adesiccant 61 and adesiccant wheel 62 to which thedesiccant 61 is fixed. Thedesiccant 61 adsorbs moisture within the indoor air while the indoor air passes through thedehumidification rotor 60 and recycles the absorbed moisture. Thedesiccant wheel 62 surrounds the circumference of thedesiccant 61. - The
desiccant 61 is generally configured to have a circular plate and is surrounded by thedesiccant wheel 62. A fixing hole for fixing thedesiccant 61 to the center of thedehumidification rotor 60 is formed in thedesiccant 61. - The
desiccant 61 is alternately wound up in a cylindrical shape using paperboard and corrugated paper made of ceramics fiber and may be made of meso-silica (Si02), such as nano-carbon balls (NCBs). The NCBs have excellent hygroscopic properties owing to well-developed pores and surface area, and are capable of being reconditioned at a low temperature of about 60°C or less. - NCBs have a spherical carbon structure 200nm to 500nm in diameter that includes a spherical hollow core unit and a mesoporous carbon cell unit. NCBs include fine pores each having a diameter of 2nm to 50nm. The pores of typical activated carbon have a wide surface area (BET), a wide mesoporous area, and do not clog.
- The
desiccant 61 is partitioned into a portion to which moisture within indoor air is absorbed while the indoor air passes through the desiccant 61 (hereinafter referred to as a 'dehumidification portion'), and a portion from which moisture is evaporated into reconditioning air while the reconditioning air passes through the desiccant 61 (hereinafter referred to as a 'reconditioning portion'). The respective areas alternate by rotation of thedesiccant 61 so that moisture is absorbed and evaporated. The reconditioning portion is opposite to thereconditioning heater 100 and is configured to transmit reconditioning air therethrough. Portions other than the reconditioning portion become the dehumidification portion through which the indoor air passes. - The
desiccant wheel 62 includes an edge unit configured to have a ring shape and to surround the circumference of thedesiccant 61, a fixing unit configured to fix thedesiccant 61, and a connection unit configured to connect the edge unit and the fixing unit and radially formed between the edge unit and the fixing unit. - A
rotor supporter 68 for rotatably supporting the dehumidification rotor and arotor frame 69 on which therotor supporter 68 is mounted are placed within the main body 1. - The
rotor frame 69 functions as a kind of barrier for partitioning the inside of themain body 2 into a rear-side space in which theventilator 50 is placed and a front-side space in which the condensingheat exchanger 200 is placed. Aperforation unit 75 through which therotor supporter 68 perforates is perforated in therotor frame 69 in front of the air intake holes of theventilator 50. - The
rotor frame 69 has aperture units formed in front of the reconditioningfan 90. The aperture units of therotor frame 62 function to make aduct 280, allowing air introduced therein to be introduced into the reconditioningfan 90, communicate with the reconditioningfan 90. Acontrol unit 78 for controlling the dehumidifier is placed in therotor frame 69. - Meanwhile, the dehumidifier according to the present exemplary embodiment further includes a
dehumidification rotor motor 87 for rotating thedehumidification rotor 60. - The reconditioning
fan 90 functions to ventilate air for reconditioning the dehumidification rotor 60 (hereinafter referred to as 'reconditioning air') to thedehumidification rotor 60. The reconditioningfan 90 includes afan housing 91, afan 92 rotatably placed in thefan housing 91, anorifice 93 placed in thefan housing 91 and configured to introduce the air sucked in by thefan 92, and afan motor 94 placed in thefan housing 91 and configured to rotate thefan 92. - The
reconditioning heater 100 functions to heat air ventilated to thedehumidification rotor 60 by the reconditioningfan 90 and to supply the air of a high temperature to thedehumidification rotor 60. Thereconditioning heater 100 includes an electric heater 101, a heater cover 102 configured to cover the electric heater 101 and to communicate with the reconditioningfan 90, and ablocking film 103 coupled to the heater cover 102 so that the blockingfilm 103 is placed between the heater cover 102 and thedehumidification rotor 60. - The blocking
film 103 is a kind of air guide for preventing air, heated by the electric heater 101, from leaking to the surroundings between the electric heater 101 and thedehumidification rotor 60 so that the air is moved toward thedehumidification rotor 60. An aperture unit is formed in a face of the blockingfilm 103, which faces thedehumidification rotor 60. - The condensing
heat exchanger 200 functions to condense the reconditioning air that has reconditioned thedehumidification rotor 60 through heat exchange with the indoor air sucked in by theventilator 50. The condensingheat exchanger 200 includes a plurality ofheat exchange plates - The condensing
heat exchanger 200 include condensingducts dehumidification rotor 60 passes andheat absorption ducts ventilator 50 passes. The condensingheat exchanger 200 is made of synthetic resin material in order to facilitate the shaping of the condensingducts - The construction of the condensing
heat exchanger 200 is described in detail below. -
Fig. 3 is a perspective view of the condensing heat exchanger according to a first exemplary embodiment of the present invention,Fig. 4 is a rear view of the condensing heat exchanger shown inFig. 3 ,Fig. 5 is a plan cross-sectional view of the condensing heat exchanger shown inFig. 3 , andFig. 6 is an exploded perspective view of the condensing heat exchanger shown inFig. 3 . - The construction of the condensing
heat exchanger 200 according to the first exemplary embodiment is described with reference toFigs. 3 to 6 . - The dehumidifier of the present invention includes the condensing
heat exchanger 200 for removing the moisture of reconditioning air. The condensingheat exchanger 200 of the present exemplary embodiment includes the plurality ofheat exchange plates duct 280. - Hereinafter, the construction of each of the
heat exchange plates duct 280 is described, and a combination of the condensingheat exchanger 200 and the flow of air therein are described. - The
heat exchange plates heat exchange plate 220, a secondheat exchange plate 240, and a thirdheat exchange plate 260. It is however to be noted that the number of heat exchange plates may vary depending on the state of reconditioning air. - The first
heat exchange plate 220 includes a first reconditioningair introduction unit 222, a first reconditioningair channel unit 234, a plurality of first condensingducts 226, a plurality of firstheat absorption ducts 232, a firstlower space 230a, a first condensedwater discharge unit 230, and first reconditioningair discharge units 224. - The first reconditioning
air introduction unit 222 is perforated in a face into which the reconditioning air is introduced, which belongs to the firstheat exchange plate 220, and is configured to function as an introduction unit for introducing the reconditioning air, passed through the reconditioning portion of thedehumidification rotor 61, into the condensingheat exchanger 200. - In more detail, the first reconditioning
air introduction unit 222 has a shape which is opposite to the position of the reconditioning portion of thedehumidification rotor 61 and is configured to have a width increasing in proportion to an increasing distance from thecenter 222a of the condensingheat exchanger 200. Here, thecenter 222a of the condensingheat exchanger 200 refers to a position on the condensingheat exchanger 200 corresponding to the center of thedesiccant 61. - The
dehumidification rotor 60 is configured to generally have a circular shape and is configured to dehumidify the indoor air and to be reconditioned by the reconditioning air while rotating. Therefore, the reconditioning portion in which the reconditioning air reconditions thedesiccant 61 has a fan shape. Consequently, the reconditioningair introduction unit 222 of the firstheat exchange plate 220 has a fan shape in response to the shape of the reconditioning portion, thereby making smooth the suction of reconditioning air. Accordingly, the flow of reconditioning air within the condensingheat exchanger 200 can become uniform, and the condensing efficiency of the reconditioning air can be increased. - Meanwhile, the reconditioning portion of the
desiccant 61 may be formed in various positions on thecircular desiccant 61. In the present exemplary embodiment, however, it is illustrated that the reconditioning portion is placed in the upper center of thedesiccant 61. The first reconditioningair introduction unit 222 is placed in the upper center of the firstheat exchange plate 220 based on the reconditioning portion placed in the upper center of thedesiccant 61. Accordingly, the reconditioning air introduced through the first reconditioningair introduction unit 222 can be uniformly distributed and flown to the plurality of first condensingducts 226 to be described later. - The first reconditioning
air channel unit 234 is perforated in a face opposite to the face where the first reconditioningair introduction unit 222 is formed, which belongs to the firstheat exchange plate 220. The first reconditioningair channel unit 234 is configured to communicate with a second reconditioningair introduction unit 242 to be described later and is configured to discharge a part of the reconditioning air, introduced through the first reconditioningair introduction unit 222, to the second reconditioningair discharge units 244 of the secondheat exchange plate 240 to be described later. - The first reconditioning
air channel unit 234 may have the same shape as that of the first reconditioningair introduction unit 222 so that it is opposite to the first reconditioningair introduction unit 222. In this case, there is an advantage in that the flow of reconditioning air becomes uniform because the flow of the reconditioning air can be introduced in a straight line. Here, at least one of the shapes of the second reconditioningair introduction unit 242, a second reconditioningair channel unit 254, and a third reconditioningair introduction unit 262 to be described later may have the same shape as that of the first reconditioningair introduction unit 222 so that it is opposite to the first reconditioningair introduction unit 222. Further, each of the first, second, and third reconditioningair introduction units air channel units - In the present exemplary embodiment, however, it is illustrated that the first reconditioning
air channel unit 234 is configured to have a long streamline shape in the left and right directions based on the shape of the upper edge portion of the firstheat exchange plate 220. In other words, the shape and position of the first reconditioningair channel unit 234 correspond to those of the second reconditioningair introduction unit 242 to be described later, so reconditioning air can well flow from the firstheat exchange plate 220 to the secondheat exchange plate 240. - The plurality of first condensing
ducts 226 respectively has a long pipe shape in the length direction and includesinlet units 226a into which reconditioning air is introduced andoutlet units 226b from which the reconditioning air is discharged. - Air other than the air flowing through the second
heat exchange plate 240, which belongs to the reconditioning air introduced through the first reconditioningair introduction unit 222, flows into the plurality of first condensingducts 226. - The position of the
inlet unit 226a of each of thefirst condensing ducts 226 may vary depending on the position of the first reconditioningair introduction unit 222. However, in the present exemplary embodiment, the first reconditioningair introduction unit 222 has a fan shape. Therefore, theinlet units 226a are placed on a line extending from the line of aradius 222b having the fan shape. Accordingly, the air introduced through the first reconditioningair introduction unit 222 can smoothly flow downward along thefirst condensing ducts 226. - Further, the
first condensing ducts 226 formed at both ends, which belong to thefirst condensing ducts 226, are placed on a line that is downward bent on the line of theradius 222b because, if theinlet units 226a are placed on the line of theradius 222b having the fan shape, reconditioning air may not well enter theinlet units 226a. Accordingly, the line where theinlet units 226a are placed generally has an M shape. - Meanwhile, baffle
ducts 228 may be formed between thefirst condensing ducts 226. Plural columns of thefirst condensing ducts 226 are placed in parallel on a plane in the upper and down directions. - In the case where the first reconditioning
air discharge units 224 are placed in the right and left circumferential portions of the lower end of the firstheat exchange plate 220, there is a difference in the distance between the plurality of first condensingducts 226 and the first reconditioningair discharge units 224. Accordingly, there occurs a difference in the distance of flow until the reconditioning air introduced into the first reconditioningair introduction unit 222 passes through the plurality of first condensingducts 226 and is then discharged through the first reconditioningair discharge units 224. In this case, there occurs imbalance in the flow of the entire reconditioning air flowing through the firstheat exchange plate 220. - Thus, if the
baffle ducts 228, making the first reconditioningair discharge units 224 communicate with the first condensing ducts close to the first reconditioningair discharge units 224, are formed, the velocity of reconditioning air flowing through the first condensing ducts close to the first reconditioningair discharge units 224 can be lowered. Accordingly, the flow of the entire reconditioning air flowing through the first heat exchange plate can become uniform. - The
baffle ducts 228 may be formed in various ways. In the present exemplary embodiment, however, it is illustrated that baffle ducts, connecting all thefirst condensing ducts 226 while passing through thecenter 222a of the first heat exchange plate, and a pair of baffle ducts, connecting a part of thefirst condensing ducts 226 on the upper and lower sides of the above-described baffle duct, are formed. - In the case where the reconditioning
air discharge units 224 are placed in the right and left circumferential portions of the lower end of the firstheat exchange plate 220, the above-described imbalance occurs in the flow. Accordingly, a mesh plate in which a plurality of holes through which reconditioning air can flow is perforated may be placed in inlet units placed on the line of theradius 222b of the fan shape close to the reconditioningair discharge units 224, which belong to theinlet units 226a. In this case, the velocity of reconditioning air introduced into theinlet units 226a close to the reconditioningair discharge units 224 becomes slow, and the velocity of the flow of reconditioning air on the plurality of first condensing ducts can become uniform. - The
respective outlet units 226b are formed under thefirst condensing ducts 226. The air passed through thefirst condensing ducts 226 is discharged through the plurality ofoutlet units 226b. Theoutlet units 226b may be arranged in various shapes. That is, theoutlet units 226b may be arranged in a straight line or may be arranged on an upward tilted line on the basis of the first condensedwater discharge unit 230 to be described later. - The plurality of first
heat absorption ducts 232 are formed between the plurality of first condensingducts 226. In other words, thefirst condensing ducts 226 are perforated in the front and rear directions between thefirst condensing ducts 226 such that the indoor air can flow between the firstheat absorption ducts 232. Accordingly, the indoor air can be subject to heat exchange with high-temperature and high-humidity reconditioning air, passed through the firstheat absorption ducts 232, while the indoor air passes through thefirst condensing ducts 226. Moisture within the reconditioning air is condensed through the heat exchange between the high-temperature and high-humidity reconditioning air and the indoor air of normal temperature. - The first
lower space 230a is formed between the plurality ofoutlet units 226b and the first reconditioningair discharge units 224. The firstlower space 230a functions to accommodate the air passed through the plurality ofoutlet units 226b and to discharge the accommodated air through the first reconditioningair discharge units 224. - Meanwhile, the first condensed
water discharge unit 230 in which the moisture condensed in thefirst condensing ducts 226 drops down to the firstlower space 230a and is then discharged to the outside is formed in the firstlower space 230a. - The bottom of the first
lower space 230a is upward tilted on the basis of the first condensedwater discharge unit 230. Accordingly, the condensed water can be easily discharged to the first condensedwater discharge unit 230. - The first reconditioning
air discharge units 224 function as exits from which the air passed through the firstlower space 230a is discharged to the outside. The first reconditioningair discharge units 224 are formed on one side of the circumferential portion of the firstheat exchange plate 220. Accordingly, the thickness of the entirecondensing heat exchanger 200 can be reduced, and the outward appearance of the dehumidifier can be made thin. - In the present exemplary embodiment, the first reconditioning
air discharge units 224 are formed in the left and right circumferential portions of the lower end of the firstheat exchange plate 200. - The second
heat exchange plate 240 is placed in the rear of the firstheat exchange plate 220 in a direction where the reconditioning air is introduced such that the reconditioning air passed through the firstheat exchange plate 220 can pass through the secondheat exchange plate 240. - The entire construction and functions of the second
heat exchange plate 240 are similar to those of the firstheat exchange plate 220. Hereinafter, differences between the secondheat exchange plate 240 and the firstheat exchange plate 220 are for the most part described. - The second
heat exchange plate 240 has the same construction as that of the firstheat exchange plate 220 except for the second reconditioningair introduction unit 242 and thesecond condensing ducts 246. - The second reconditioning
air introduction unit 242 is perforated in a face in which the reconditioning air is introduced into the secondheat exchange plate 240 and is configured to communicate with the first reconditioningair channel unit 234. Accordingly, the second reconditioningair introduction unit 242 functions as an inlet into which a part of the reconditioning air introduced into the firstheat exchange plate 220 is introduced. - As described above, a plurality of condensing ducts is formed under the area occupied by a reconditioning air introduction unit and is configured to introduce the flow of reconditioning air up and down. Accordingly, in the case where the area of the reconditioning air introduction unit is wide, the area of the condensing ducts is inevitably small and, therefore, the heat exchange efficiency of the entire condensing heat exchanger is lowered.
- Therefore, the second reconditioning
air introduction unit 242 according to the present exemplary embodiment has a long streamline shape right and left based on the shape of the upper circumferential portion of the secondheat exchange plate 240, unlike in the first reconditioningair introduction unit 222. In other words, the second reconditioningair introduction unit 242 has the same shape as that of the first reconditioningair channel unit 234 and communicates with the first reconditioningair channel unit 234. Accordingly, there is an advantage in that the heat exchange area of indoor air and reconditioning air is widened because the area occupied by thesecond condensing ducts 246 to be described later is increased. - In the case where the second reconditioning
air discharge units 244 to be described later are placed on the right and left circumferential portions of the lower end of the secondheat exchange plate 240, there may occur imbalance in the flow of reconditioning air flowing through the above-described secondheat exchange plate 240. Therefore, the area formed by the second reconditioningair introduction unit 242 may be wide as the second reconditioningair introduction unit 242 becomes far from the second reconditioningair discharge units 244. Accordingly, the flow of the reconditioning air flowing through the secondheat exchange plate 240 can become uniform. - Each of the plurality of
second condensing ducts 246 has a long pipe shape in the length direction. Aninlet unit 246a into which the reconditioning air is introduced and anoutlet unit 246b from which the reconditioning air is discharged are formed in each of the plurality ofsecond condensing ducts 246. - The plurality of
second condensing ducts 246 functions to perform heat exchange on reconditioning air other than the reconditioning air flowing into the thirdheat exchange plate 260, which belongs to the reconditioning air introduced through the second reconditioningair introduction unit 242. - The position of the
inlet unit 246a of each of thesecond condensing ducts 246 may vary depending on the position of the second reconditioningair introduction unit 222. In the present exemplary embodiment, however, that, as described above, the second reconditioningair introduction unit 242 has a long streamline shape in the right and left directions. Theinlet units 246a are placed on the line equal to the lower end of the streamline shape. - In this case, the area occupied by the
second condensing ducts 246 is greater than that occupied by thefirst condensing ducts 226. Accordingly, the heat exchange area of the secondheat exchange plate 240 is greater than that of the firstheat exchange plate 220. - Meanwhile, the
baffle ducts 228 may also be formed in thesecond condensing ducts 246, as in thefirst condensing ducts 226. Theoutlet units 246b have the same construction and position as those of theoutlet units 226b. - The third
heat exchange plate 260 is placed in the rear of the secondheat exchange plate 240 in a direction where reconditioning air is introduced such that a part of the reconditioning air passed through the second reconditioningair introduction unit 242 can be introduced into the thirdheat exchange plate 260. The entire construction and functions of the thirdheat exchange plate 260 are similar to those of the secondheat exchange plate 240. - The entire construction of the third
heat exchange plate 260 is identical to that of the secondheat exchange plate 240 except that the second reconditioningair channel unit 254 is not formed in the thirdheat exchange plate 260. In more detail, reconditioning air, which has been introduced into the thirdheat exchange plate 260 through the second reconditioningair channel unit 254 without being subject to heat exchange in the secondheat exchange plate 240, is all subject to heat exchange in the thirdheat exchange plate 260. Accordingly, a third reconditioning air channel unit placed at a position corresponding to the third reconditioningair introduction unit 262 is not formed in the thirdheat exchange plate 260. The reconditioning air introduced through the third reconditioningair introduction unit 262 is all introduced into a plurality ofthird condensing ducts 266. - The remaining elements have the same construction as those of the second
heat exchange plate 240. - The
duct 280 functions to force the air, discharged through the reconditioningair discharge units fan 90. Accordingly, theduct 280 may have a pipe that connects the reconditioningair discharge units fan 90. Theduct 280 may have a variety of shapes and constructions depending on the positions of the reconditioningair discharge units fan 90. - In more detail, in the present exemplary embodiment, the
duct 280 includes inlet units enough to accommodate all the reconditioningair discharge units air discharge units duct 280 is lengthily formed up and down in parallel to the circumferential portion of the right or left side of the condensing heat exchanger. - Alternatively, the
duct 280 may be formed to adjoin the circumferential portion of the right or left side of the condensingheat exchanger 200. However, in the present exemplary embodiment, the ducts formed in the condensing heat exchangers are spaced apart one another at regular intervals. Accordingly, the respectiveheat absorption ducts heat exchanger 200, which belongs to the plurality of condensingducts - A process of condensing reconditioning air and a process of dehumidifying indoor air in the dehumidifier constructed above according to the first exemplary embodiment of the present invention are described below.
- First, reconditioning air circulates through a reconditioning passage when the reconditioning
fan 90 is rotated. That is, the reconditioning air passing through the reconditioningfan 90 is heated by thereconditioning heater 100, thereby making the air have a high temperature. The high-temperature reconditioning air reconditions the reconditioning portion of thedehumidification rotor 60 and then enters the first reconditioningair introduction unit 222 of the condensingheat exchanger 200. - A part of the reconditioning air introduced into the first reconditioning
air introduction unit 222 is introduced into thefirst condensing ducts 226, and the remaining is introduced into the second reconditioningair introduction unit 242 through the first reconditioningair channel unit 234. A part of the reconditioning air introduced into the second reconditioningair introduction unit 242 is introduced into thesecond condensing ducts 246 and the remaining is introduced into thethird condensing ducts 266 via the second reconditioningair channel unit 254 and the third reconditioningair introduction unit 262. - The reconditioning air introduced into the
first condensing ducts 226, thesecond condensing ducts 246, and thethird condensing ducts 266 downward flows along each of the condensingducts heat absorption ducts respective condensing ducts - Moisture within the reconditioning air is condensed during the heat exchange process, and the condensed moisture is introduced into a
drain fan 140 through the condensingducts water discharge units - The reconditioning air passed through each of the condensing
ducts duct 280 through each of the reconditioningair discharge units lower spaces fan 90 coupled to theduct 280. The reconditioning air introduced into the reconditioningfan 90 passes through thereconditioning heater 100 and then circulates again while reconditioning the reconditioning portion of thedehumidification rotor 60. - Indoor air is sucked in by the
air intake units 4 of themain body 2 when theventilator 50 is rotated. The indoor air is subject to heat exchange with the reconditioning air while passing through theheat absorption ducts heat exchanger 200. - Moisture included in the indoor air is absorbed while the indoor air passes through the dehumidification portion of the
desiccant 61. The indoor air from which the moisture has been removed passes through theventilator 50 and is then discharged to the interior of a room through theair discharge unit 6. -
Fig. 7 is a perspective view of a condensing heat exchanger according to a second exemplary embodiment of the present invention. - The entire construction of the condensing heat exchanger according to the second exemplary embodiment of the present invention is described below with reference to
Fig. 7 . The entire construction of the second exemplary embodiment of the present invention is similar to that of the first exemplary embodiment. Differences between the second exemplary embodiment and the first exemplary embodiment are chiefly described. - The first reconditioning
air introduction unit 322 of a firstheat exchange plate 320 according to the second exemplary embodiment of the present invention has a shielded portion, ranging from thecenter 322a of the condensing heat exchanger to an upward portion of thecenter 322a at a specific interval. Adehumidification rotor 60 has a rotation unit at its center. In this case, reconditioning air cannot be introduced into the first reconditioningair introduction units 322 through a portion where the rotation unit of thedehumidification rotor 60 is placed. Accordingly, the portion where the rotation unit of the dehumidification rotor is placed, which belongs to the first reconditioningair introduction units 322, is shielded. The area where the reconditioning air is subject to heat exchange with indoor air can be increased by raising the height of each of first condensingducts 326 of the shielded portion. In more detail,inlet units 326a of thefirst condensing ducts 326 are placed on ashielding line 322c of the shielded portion. - Meanwhile, the lower end of each of condensing
ducts 332, 352, and 372 has a straight line.Lower spaces 330a, 350a, and 370a are formed at the respective lower ends of the condensingducts 332, 352, and 372 and theheat exchange plates lower spaces 330a, 350a, and 370a on positions where respective reconditioningair discharge units lower spaces 330a, 350a, and 370a are wide have a low pressure, so the velocity of the reconditioning air on the condensing ducts is relatively decreased. The sides where thelower spaces 330a, 350a, and 370a are narrows have a high pressure, so the velocity of the reconditioning air on the condensing ducts is fast. Accordingly, the flow of velocity becomes uniform depending on the distance from the reconditioning air discharge units 324, 344, and 364, thereby making smooth the flow of the reconditioning air. -
Fig. 8 is a plan cross-sectional view of the condensing heat exchanger according to a third exemplary embodiment of the present invention. - The entire construction of the condensing heat exchanger according to the third exemplary embodiment of the present invention is described below with reference to
Fig. 8 . The entire construction of the third exemplary embodiment of the present invention is similar to that of the first exemplary embodiment. Differences between the third exemplary embodiment and the first exemplary embodiment are for the most part described. - In the case where each of the reconditioning
air discharge units ducts air discharge units air discharge units ducts air discharge units air discharge units ducts - In the present exemplary embodiment, the cross area of each of the condensing
ducts air discharge units ducts air discharge units ducts air discharge units -
Fig. 9 is a perspective view of a condensing heat exchanger according to a fourth exemplary embodiment of the present invention. - The entire construction of the condensing heat exchanger according to the fourth exemplary embodiment of the present invention is described below with reference to
Fig. 9 . The entire construction of the fourth exemplary embodiment of the present invention is similar to that of the first exemplary embodiment. Differences between the fourth exemplary embodiment and the first exemplary embodiment are chiefly described. - A first reconditioning
air introduction unit 522 according to the fourth exemplary embodiment of the present invention is rotated in an opposite direction to the first reconditioningair discharge units 224 at a specific angle. Accordingly, imbalance occurring in the flow in the case where the first reconditioningair discharge units 224 are placed on one of the right and left sides of a firstheat exchange plate 520 as described above can be solved. - In more detail, according to the present exemplary embodiment, the difference in the distance between the plurality of
inlet units 526a of respective condensingducts 526 and the firstreconditioning discharge units 224 can be reduced. In this case, a distance where reconditioning air introduced into the condensingducts 526 through the first reconditioningair introduction unit 522 passes through the reconditioningair discharge units 224 is constant. Accordingly, the flow of the reconditioning air of the firstheat exchange plate 520 can become smooth. -
Fig. 10 is a rear view of a condensing heat exchanger according to a fifth exemplary embodiment of the present invention, andFig. 11 is an exploded perspective view of the condensing heat exchanger according to the fifth exemplary embodiment of the present invention. - In the dehumidifier according to the present exemplary embodiment, as shown in
Figs. 10 and11 , the first, second, and third reconditioning air introduction units 622, 642, and 662 of first, second, and thirdheat exchange plates heat exchange plates air discharge units heat exchange plates heat exchange plates - In other words, the first, second, and third reconditioning
air discharge units heat exchange plates heat exchange plates - A first discharging reconditioning
air channel unit 634 and a second discharging reconditioningair channel unit 654 are respectively perforated in such a way as to be opposite to the second and third reconditioningair discharge units heat exchange plate 620 and the secondheat exchange plate 640. - The first discharging reconditioning
air channel unit 634 communicates with the second reconditioningair discharge unit 644, and the second discharging reconditioningair channel unit 654 communicates with the third reconditioningair discharge unit 664. - In other words, reconditioning air passed through the
third condensing ducts 266 is introduced into aduct 680 via the third reconditioningair discharge unit 664, the second discharging reconditioningair channel unit 654, the second reconditioningair discharge unit 644, the first discharging reconditioningair channel unit 634, and the first reconditioningair discharge unit 624. - Further, reconditioning air passed through the
second condensing ducts 246 is introduced into theduct 680 via the second reconditioningair discharge unit 644, the first discharging reconditioningair channel unit 634, and the first reconditioningair discharge unit 624. - Further, reconditioning air passed through the
first condensing ducts 226 is introduced into theduct 680 via the first reconditioningair discharge unit 624. - Meanwhile, the
duct 680 is formed so that it communicates with the first reconditioningair discharge unit 624. In more detail, theduct 680 is coupled to the first reconditioningair discharge unit 624 so that it is inserted into the first reconditioningair discharge unit 624 forward and backward. Theduct 680 is bent in response to the lower part and left and right circumferential portions of the firstheat exchange plate 620. - While the present invention has been shown and described in connection with the exemplary embodiments thereof, those skilled in the art will appreciate that the present invention may be changed and modified in various ways without departing from the scope of the present invention as defined in the following claims.
Claims (14)
- A dehumidifier, comprising
a main body (2), comprising a dehumidification passage in which indoor air is sucked in and the sucked-in indoor air is dehumidified and a reconditioning passage in which reconditioning air circulates;
a dehumidification rotor (60), comprising a dehumidification portion configured to dehumidify the indoor air and a reconditioning portion reconditioned using the reconditioning air;
a reconditioning fan (90) ventilating the reconditioning air to the dehumidification rotor; and
a condensing heat exchanger (200) in which a plurality of heat exchange plates (220, 240, 260), each comprising a plurality of condensing ducts (226, 246, 266), is arranged in parallel, wherein the condensing ducts are configured so that the reconditioning air passed through the reconditioning portion is sucked in through upper parts of the condensing ducts and the sucked-in reconditioning air is discharged through lower parts of the condensing ducts,
characterised in that the reconditioning air discharge units (224, 244, 264) for discharging the reconditioning air passed through the dehumidification rotor are formed on right or left sides of lower parts of the plurality of respective heat exchange plates, and
wherein the condensing heat exchanger includes a duct (280) having a pipe that connects the reconditioning air discharge units and the reconditioning fan, and the duct includes enough inlet units to accommodate all the reconditioning air discharge units. - The dehumidifier of claim 1, wherein:reconditioning air introduction units into which the reconditioning air passed through the dehumidification rotor is introduced are formed on an upper part of each of the plurality of heat exchange plates, andthe plurality of reconditioning air introduction units communicates with each other.
- The dehumidifier of claim 1 or 2, wherein:the reconditioning air introduction units are formed to face a position of the reconditioning portion, andeach of the reconditioning air introduction units has a width increasing in proportion to a distance from a center of the condensing heat exchanger, which corresponds to a center of the dehumidification rotor.
- The dehumidifier of claim 3, wherein each of the reconditioning air introduction units has a fan shape.
- The dehumidifier of claim 3, wherein the reconditioning portion is placed at a center of an upper part of the dehumidification rotor.
- The dehumidifier of claim 5, wherein:reconditioning air channel units from which the reconditioning air passed through the dehumidification rotor is discharged are formed in rear faces of the plurality of respective heat exchange plates, andthe plurality of reconditioning air channel units communicates with each other.
- The dehumidifier of claim 3, wherein a lower portion of each of the reconditioning air introduction units is shielded, wherein the lower portion ranges from the center of the condensing heat exchanger to a specific point.
- The dehumidifier of claim 7, wherein:a rotation unit for rotating the dehumidification rotor is formed at a center of the dehumidification rotor, andthe shielded portion has a shape corresponding to a shape of the rotation unit.
- The dehumidifier of claim 3, wherein an area of each of the reconditioning air introduction units of the heat exchange plates gradually decreases in a direction where the reconditioning air is introduced.
- The dehumidifier of claim 9, wherein each of reconditioning air introduction units of heat exchange plates, which are, in the direction where the reconditioning air is introduced, subsequent to a first one of the plurality of heat exchange plates, has a long streamline shape in right and left directions on an upper part of the condensing heat exchanger.
- The dehumidifier of claim 1, wherein the reconditioning portion is rotated at a specific angle toward a side far from the reconditioning air discharge units.
- The dehumidifier of claim 1, wherein:each of reconditioning air introduction units of heat exchange plates, which are, in the direction where the reconditioning air is introduced, subsequent to a first one of the plurality of heat exchange plates, has a long streamline shape in right and left directions on an upper part of the condensing heat exchanger, andeach of the reconditioning air introduction units, each having the streamline shape, has an area which increases according to an increasing distance from the reconditioning air discharge unit.
- The dehumidifier of claim 1, wherein each of the plurality of condensing ducts has a cross area which increases according to an increasing distance from the reconditioning air discharge unit.
- The dehumidifier of claim 3, wherein a reconditioning air discharge unit for discharging the reconditioning air passed through the dehumidification rotor is formed in one or more of front and rear faces of a lower part of each of the plurality of heat exchange plates.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080042163A KR100958391B1 (en) | 2008-05-07 | 2008-05-07 | Dehumidifier |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2116781A2 EP2116781A2 (en) | 2009-11-11 |
EP2116781A3 EP2116781A3 (en) | 2012-05-30 |
EP2116781B1 true EP2116781B1 (en) | 2015-09-02 |
Family
ID=40897538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09250555.1A Not-in-force EP2116781B1 (en) | 2008-05-07 | 2009-02-27 | Dehumidifier |
Country Status (3)
Country | Link |
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EP (1) | EP2116781B1 (en) |
KR (1) | KR100958391B1 (en) |
CN (1) | CN101574611B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101822934B (en) * | 2010-02-01 | 2012-05-23 | 北京亚都空气污染治理技术有限公司 | Air channel structure and air conditioning equipment with same |
CN112169550B (en) * | 2020-09-24 | 2022-09-30 | 邹平双飞成套设备有限公司 | General type electric heat drying equipment for industrial gas treatment |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3857809B2 (en) * | 1998-04-27 | 2006-12-13 | シャープ株式会社 | Dehumidifier |
JPH11333239A (en) | 1998-05-25 | 1999-12-07 | Sharp Corp | Heat exchanger made of resin |
JP2001263977A (en) | 2000-03-22 | 2001-09-26 | Sharp Corp | Heat exchanger made of resin |
JP3445790B1 (en) * | 2002-05-10 | 2003-09-08 | 株式会社カンキョー | Dehumidifier |
JP2004271031A (en) | 2003-03-07 | 2004-09-30 | Zojirushi Corp | Method of manufacturing heat exchanger and dehumidifier using the same |
JP3742800B2 (en) * | 2003-03-07 | 2006-02-08 | 象印マホービン株式会社 | Dehumidifier |
JP2005265256A (en) | 2004-03-17 | 2005-09-29 | Tiger Vacuum Bottle Co Ltd | Portable dehumidifier |
TWI255330B (en) * | 2005-03-31 | 2006-05-21 | Norm Pacific Automat Corp | Heater device for desiccant rotor dehumidifier |
KR101174529B1 (en) * | 2005-06-13 | 2012-08-20 | 엘지전자 주식회사 | A dehumidifier |
KR100682269B1 (en) * | 2005-10-05 | 2007-02-15 | 엘지전자 주식회사 | Heat exchanger unit for improving heat exchange efficiency and air conditioning apparatus having the same |
KR101231321B1 (en) * | 2006-04-27 | 2013-02-07 | 엘지전자 주식회사 | A dehumidifier |
KR20070107281A (en) * | 2006-05-02 | 2007-11-07 | 엘지전자 주식회사 | A dehumidifier |
-
2008
- 2008-05-07 KR KR1020080042163A patent/KR100958391B1/en active IP Right Grant
-
2009
- 2009-02-13 CN CN2009100072206A patent/CN101574611B/en not_active Expired - Fee Related
- 2009-02-27 EP EP09250555.1A patent/EP2116781B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2116781A2 (en) | 2009-11-11 |
KR20090116302A (en) | 2009-11-11 |
CN101574611A (en) | 2009-11-11 |
EP2116781A3 (en) | 2012-05-30 |
CN101574611B (en) | 2012-05-30 |
KR100958391B1 (en) | 2010-05-18 |
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