GB2321603A - Moisture control unit - Google Patents

Moisture control unit Download PDF

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Publication number
GB2321603A
GB2321603A GB9810052A GB9810052A GB2321603A GB 2321603 A GB2321603 A GB 2321603A GB 9810052 A GB9810052 A GB 9810052A GB 9810052 A GB9810052 A GB 9810052A GB 2321603 A GB2321603 A GB 2321603A
Authority
GB
United Kingdom
Prior art keywords
moisture
air
housing
chamber
control unit
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.)
Granted
Application number
GB9810052A
Other versions
GB9810052D0 (en
GB2321603B (en
Inventor
Yasuyuki Fujimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kankyo Co Ltd
Original Assignee
Kankyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP6312349A external-priority patent/JP2926306B2/en
Priority claimed from JP6324015A external-priority patent/JPH08155247A/en
Application filed by Kankyo Co Ltd filed Critical Kankyo Co Ltd
Priority claimed from GB9522855A external-priority patent/GB2295332B/en
Publication of GB9810052D0 publication Critical patent/GB9810052D0/en
Publication of GB2321603A publication Critical patent/GB2321603A/en
Application granted granted Critical
Publication of GB2321603B publication Critical patent/GB2321603B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/302—Alkali metal compounds of lithium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/116—Molecular sieves other than zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/25—Coated, impregnated or composite adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
    • 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
    • F24F2003/1458—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 using regenerators
    • F24F2003/1464—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 using regenerators using rotating regenerators
    • 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
    • F24F2203/1004—Bearings or driving means
    • 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
    • F24F2203/1012—Details of the casing or cover
    • 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
    • F24F2203/1036—Details
    • 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
    • F24F2203/1056—Rotary wheel comprising a reheater
    • F24F2203/106—Electrical reheater
    • 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
    • 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
    • F24F2203/1084—Rotary wheel comprising two flow rotor segments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Gases (AREA)

Abstract

A moisture control unit comprises a housing (21a) which is partitioned by a partition wall (21b) into an absorption chamber (21c) and a regeneration chamber (21d). A fan (23) is disposed in an inlet port (22) of the housing to feed air into the housing and a moisture absorbing rotor (24) is rotatably supported in the chambers (21c and 21d). A heater (28) is disposed adjacent the rotor (24) for evaporating moisture absorbed therein. A heat exchanger (25) in the housing (21a) has first passageways (25a) through which a portion of the air flows from the absorption chamber (21c) to the regeneration chamber (21d) and second passageways (25b) in heat exchange relationship with the first passageways (25a) through which air having absorbed moisture from the regeneration chamber (21d) flows.

Description

"A MOISTURE CONTROL UNIT" THE PRESENT INVENTION relates to a moisture control unit, more particularly to a dehumidifying/humidifying device employing a moisture absorption rotor.
In a conventional dry dehumidifying/humidifying device, air is dehumidified when a moisture absorption rotor of the dry dehumidifying/humidifying device absorbs moisture from the air, while the air is humidified by vapour generated when the air is heated by a heater and permitted to pass through the moisture absorption rotor, the moisture absorption rotor selecting air passages through which the air passes when it is rotated by a rotary driving source such as a motor.
However, such a conventional dehumidifying/humidifying device needs a rotary driving source for rotating the moisture absorption rotor of a power transmission means for transmitting the power of the rotary driving source to the moisture absorption rotor, which causes problems in that the structure of the device becomes complicated, the manufacturing cost of the device is high, and the running costs of the device are high because of the consumption of power.
Conventional dehumidifiers for dehumidifying moisture in air are classified into two types, one being a dry dehumidifier and the other being a wet dehumidifier.
Dry humidifiers are classified as rotary dehumidifiers as illustrated in Fig. 3 and stationary dehumidifiers as illustrated in Fig. 4 of the accompanying drawings.
The known dehumidifier of Fig. 3 comprises a rotary moisture absorption rotor a, two fans b and c, and a header d. Air to be dehumidified is sucked by the fan c through the moisture absorption rotor a so that it is dehumidified, and the air heated by the heater d is discharged to another space by the fan b through the moisture absorption rotor c and a duct, not shown, so that the moisture absorption rotor a can be regenerated.
The known stationary dehumidifier of Fig. 4 comprises two fans f and g provided in front of a moisture absorption element e, valves h, i, k and m and a heater j. Air to be dehumidified is supplied to the moisture absorption element e by the fan g through the valve h and the dehumidified and dried air is discharged into the relevant space through the valve i. When the moisture absorption element e is to be regenerated, air at high temperature is supplied to the moisture absorption element e by the fan f through the heater j and the valve k, and the resulting high temperature and high humidity air is discharged into another space through the valve m and a duct, not shown.
A known wet dehumidifier includes an evaporator, the temperature of the air to be dehumidified being lowered by the evaporator so that the moisture in the air is changed into dew, and dew drops are stored in a container, thereby dehumidifying the air.
Since a plurality of fans are needed and the moisture which is taken out in the course of regenerating the moisture absorption element is discharged to another space, conventional dry humidifiers are not easily installed and involve high costs since ducting is needed.
Moreover, the conventional stationary dehumidifier is complicated and expensive since it needs a plurality of valves and control units for controlling the opening and closing of these valves.
Although a duct is not needed and air can be dehumidified in one space, the conventional wet dehumidifier needs a heat pump, which means that the dehumidifier is large and expensive and noise is generated during the operation of the dehumidifier. Further, even if the dehumidifier is used in a low temperature range, the surface of the evaporator becomes frosted, which lowers the dehumidifying capacity.
It is an object of the invention to obviate or reduce the drawbacks of the conventional dehumidifying/humidifying devices and humidifiers, and to provide a moisture control unit which can be simplified in structure, can be of a small size, and can be installed at low cost without needing piping.
Accordingly, the invention provides a moisture control unit comprising a housing containing a partition which divides the housing into an absorption chamber and a regeneration chamber; an opening provided in an exterior wall of the housing and having a fan provided therein for feeding air into the housing; a moisture absorption rotor rotatably supported so that it is disposed in both the absorption chamber and the regeneration chamber, said rotor absorbing moisture in the absorption chamber and discharging moisture in the regeneration chamber; a heater disposed adjacent the moisture absorption rotor for evaporating moisture absorbed therein; and a heat exchanger provided within the housing, said heat exchanger comprising a first passage through which a portion of the air fed by the fan flows and is introduced to the regeneration chamber where the air absorbs moisture from the moisture absorption . rotor and a second passage through which the air having the absorbed moisture from the regeneration chamber flows, the first and second passages being in heat exchange relationship with each other.
In a moisture control unit embodying the invention, the part of the moisture absorption rotor which absorbs moisture from the air becomes heavy and thereby rotates downwardly due to weight of water, while the part of the moisture absorption rotor which is heated by a heater and from which water is evaporated is made light and thereby rotates upwardly. As a result, the moisture absorption rotor can rotate by itself without needing a rotary driving source.
The moisture absorption rotor can be regenerated when the air heated by the heater is permitted to pass through the moisture absorption rotor which is made high in humidity after the moisture absorption rotor is dehumidified.
When air is made high in humidity at the time of regeneration of the moisture absorption rotor is permitted to pass through the second passages, the same air is cooled by the air which passes through the first passages so as to form dew in the second passages and dew drops are collected to dehumidify the air without needing piping etc.
In order that the invention may be readily understood, an embodiment thereof will now be described, by way of example, with reference to the accompanying drawings, in which: Fig. 1 is a perspective view of a dehumidifier serving as a moisture control unit according to an embodiment of the invention; Fig. 2 is a view illustrating the operation of the moisture control unit of Fig. 1; Fig. 3 is a view showing the operation of a conventional rotary dry dehumidifier serving as a moisture control unit; and Fig. 4 is a view showing the operation of a conventional stationary dry dehumidifier serving as a moisture control unit.
Referring to Fig. 1, a dehumidifier 21, i.e. moisture control unit, embodying the invention comprises a box-shaped housing 21a which has an inlet port 22 provided therein. A fan 23 is disposed in the inlet port 22 for sucking fresh air therethrough. Air which is fed into the housing 21a by the fan 23 passes through an absorption chamber 21c, which is partitioned from a regeneration chamber 21d by a partition wall 21b, and reaches a cylindrical moisture absorption rotor 24 which is disposed in an upper part of the housing 21 a and a sensible heat exchanger 25 which is disposed in the housing 21 a behind the fan 23.
The moisture absorption rotor 24 has therein a plurality of passages 24a and 24b in which a moisture absorption material such as calcium chloride, lithium chloride, silica gel or molecular sieves is impregnated or on which the moisture absorption material is coated. The moisture absorption rotor 24 is disposed to extend into both the chamber 21 c and the chamber 21d which accommodates the heat exchanger 25 therein. A shaft 24c provided at the centre of the moisture absorption rotor 24 is rotatably supported by the partition wall 21b by way of a bearing 26 so that the moisture absorption rotor 24 is freely rotatable in the direction of the arrow in Fig. 1. The air which passes through the moisture absorption rotor 24 and is dehumidified thereby is discharged outside the housing 21a through an air discharge port 27.
The heat exchanger 25 located in the lower part of the chamber 3 1d comprises a plurality of passages 25and a plurality of passages 25b which are made of material having high water resisting property and stacked on top of one another in layers so as to cross one another at right angles. Air supplied by the fan 23 passes from the chamber 2 1c through the passages 25a into the chamber 21d and this air is heated by a heater 28 provided in the upper part of the chamber 21d, then passes through the moisture absorption rotor 24 and returns to the heat exchanger 25, passes through the passages 25b. The heat exchanger 25 has an air discharge port 29 at the lower portion for discharging the dehumidified air and a drop port 30 through which dew drops from the passages 25b are discharged. A container 31 is detachably mounted under the port 10 for accommodating the dew drop under the drop port 30.
The operation of the moisture control unit having the arrangement as set forth above will be now described.
When a power switch, not shown, is turned on to start the dehumidification, the fan 23 is rotated to feed air into the housing 21 a through the inlet port 22. A part of the air drawn into the housing 21a passes through the chamber 2 1c and reaches the moisture absorption rotor 24. The moisture in this part of the air is absorbed by the moisture absorption rotor 24 which thus dehumidifies the air as the air passes through the passages 24b which occupy substantially half of the moisture absorption rotor 24 and are positioned in the chamber 21c.
The dehumidified and dried air is discharged through the air discharge port 27 while the moisture absorption rotor 24 absorbs the moisture in the air so that the half of the moisture absorption rotor 24 within the chamber 21 c is made heavy. As a result, the moisture absorption rotor 24 rotates by itself in the direction of the arrow as shown in Fig. 1.
The air drawn in by the fan 23 and still remaining in the housing 21a passes through the passages 25a of the heat exchanger 25 provided to the rear of the fan 23 and travels to the heater 28 where it is heated to a high temperature. The thus heated air then passes through the passages 24a of the moisture absorption rotor 24 in the chamber 21d. The passages 24b of the moisture absorption rotor 24 within the chamber 2 1c having absorbed the moisture in the air at the side of the passage 21 c, they have a high humidity and replace the passages 24b in the chamber 21d as a result of the self-rotation of the moisture absorption rotor 24. Since the hot air which is heated by the heater 28 enters the passages 24a having a high humidity, vapour is generated and the air emerges from the passages 24a with a high temperature and humidity.
The air which was made high in temperature and humidity reaches the heat exchanger 25 and passes through the passages 25b, it is cooled by the air which passes through the passages 25a so that dew is formed on the surface of the passages 25b.
The air which is dehumidified by the formation of dew is discharged outside the housing 21a through the air discharge port 29, and the dew drops formed in the passages 25b are collected in the drop port 30, through which they drop into the container 3 1 where they are stored.
The amount of water which is stored in the container 31 is equal to the dehumidifying amount of the air by this dehumidifier, i.e. moisture control unit.
When the water stored in the container 31 reaches an appropriate amount, the container 31 is taken out from the housing 21a and emptied. As a result, the dehumidification can be performed without needing a piping system such as a duct.
The dehumidifying process of the Fig. 1 moisture control unit is illustrated in Fig. 2, where the arrows show the directions of the air and the dew.
Although the moisture absorption rotor 24 is cylindrical in the described embodiment, it may by polygonally cylindrical or a rectangular parallelepiped body.
Further, although the moisture absorption rotor 24 is rotatably supported and rotates by itself due to the weight of the absorbed moisture, it may be rotated by the fan 23 via a power transmission means or it may be rotated by a separately provided driving means.
As mentioned above, the moisture in the air is changed to dew so that moisture is taken out of the air as the liquid phase. As a result, the unit 21 does not need a piping system such as the ducting which is employed by conventional dry dehumidifiers. Accordingly, this moisture control unit can be easily installed in a room, a closet, a clog cabinet, a bathroom or a rented house where piping work cannot readily be installed.
Since the air having a high temperature and high humidity which is discharged through the dehumidifying material is cooled by the heat exchanger to form dew so that the moisture in the air is changed to water, whereby the dehumidification can be performed. As a result, the lower the temperature of the air to be drawn in, i.e. at least OOC, the higher is the dehumidifying effect is, thereby overcoming the drawbacks of a conventional heat pump in that the dehumidifying effect is lowered in a low temperature range. Further, since a heat pump is not used, it is possible to perform the dehumidification without much noise.

Claims (5)

1. A moisture control unit comprising a housing containing a partition which divides the housing into an absorption chamber and a regeneration chamber; an opening provided in an exterior wall of the housing and having a fan provided therein for feeding air into the housing; a moisture absorption rotor rotatably supported so that it is disposed in both the absorption chamber and the regeneration chamber, said rotor absorbing moisture in the absorption chamber and discharging moisture in the regeneration chamber; a heater disposed adjacent the moisture absorption rotor for evaporating moisture absorbed therein; and a heat exchanger provided within the housing, said heat exchanger comprising a first passage through which a portion of the air fed by the fan flows and is introduced to the regeneration chamber where the air absorbs moisture from the moisture absorption rotor and a second passage through which the air having the absorbed moisture from the regeneration chamber flows, the first and second passages being in heat exchange relationship with each other.
2. A moisture control unit according to Claim 1, wherein said moisture absorption rotor is rotated by the weight of vapour which is absorbed thereby.
3. A moisture control unit according to Claim 1, wherein said moisture absorption rotor is rotated by the fan via a power transmission means or by a separately provided driving means.
4. A moisture control unit according to any one of Claims 1 to 3, wherein the heat exchanger is formed with a plurality of first and second passages.
5. A moisture control unit substantially as hereinbefore described with reference to and as shown in Figures 1 and 2 of the accompanying drawings.
GB9810052A 1994-11-24 1995-11-08 A moisture control unit Expired - Fee Related GB2321603B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6312349A JP2926306B2 (en) 1994-11-24 1994-11-24 Dry dehumidifier
JP6324015A JPH08155247A (en) 1994-12-02 1994-12-02 Dehumidifier
GB9522855A GB2295332B (en) 1994-11-24 1995-11-08 A moisture control unit

Publications (3)

Publication Number Publication Date
GB9810052D0 GB9810052D0 (en) 1998-07-08
GB2321603A true GB2321603A (en) 1998-08-05
GB2321603B GB2321603B (en) 1998-10-28

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Application Number Title Priority Date Filing Date
GB9810052A Expired - Fee Related GB2321603B (en) 1994-11-24 1995-11-08 A moisture control unit

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GB (1) GB2321603B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000033943A1 (en) * 1998-12-09 2000-06-15 Domnick Hunter Limited Gas dryer
WO2000033944A1 (en) * 1998-12-09 2000-06-15 Domnick Hunter Limited Gas dryer
WO2001071260A1 (en) * 2000-03-06 2001-09-27 Honeywell International Inc. Ventilating dehumidifying system
EP1760204A1 (en) * 2004-05-26 2007-03-07 Kankyo Co., Ltd. Method for extracting water from air, and device therefor
CN101178217B (en) * 2006-11-08 2011-11-30 乐金电子(天津)电器有限公司 Dehumidifier

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006165A1 (en) * 1988-11-25 1990-06-14 Corroventa Ab A method and apparatus for drying air
WO1993004764A1 (en) * 1991-08-30 1993-03-18 Corroventa Avfuktning Ab A method and apparatus for increasing the yield of an air-drying process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006165A1 (en) * 1988-11-25 1990-06-14 Corroventa Ab A method and apparatus for drying air
WO1993004764A1 (en) * 1991-08-30 1993-03-18 Corroventa Avfuktning Ab A method and apparatus for increasing the yield of an air-drying process

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000033943A1 (en) * 1998-12-09 2000-06-15 Domnick Hunter Limited Gas dryer
WO2000033944A1 (en) * 1998-12-09 2000-06-15 Domnick Hunter Limited Gas dryer
US6526674B1 (en) 1998-12-09 2003-03-04 Domnick Hunter Limited Gas dryer
US6568100B1 (en) 1998-12-09 2003-05-27 Domnick Hunter Limited Gas dryer
WO2001071260A1 (en) * 2000-03-06 2001-09-27 Honeywell International Inc. Ventilating dehumidifying system
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GB2321603B (en) 1998-10-28

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