JP2005246230A - Dehumidifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dehumidifier of an adsorption type capable of surely suppressing the temperature rise of an adsorbent itself, increasing the valid adsorption amount of the adsorbent and improving dehumidification ability further in the dehumidifier of the adsorption type which supplies dehumidified air to a prescribed space. <P>SOLUTION: The dehumidifier comprises an air supply path 1 to the prescribed space, an air discharge path 2 from the prescribed space, an air permeable dehumidification rotor 3 composed by depositing the adsorbent and a heating means 5 for heating the discharge air of the air discharge path 2, and is constituted so as to adsorb water vapor in air by the adsorbent in the air supply path 1 and regenerate the absorbent by the air at a high temperature in the air discharge path 2 accompanying the rotation of the dehumidification rotor 3. Then, to the dehumidification rotor 3, in order to remove adsorption heat generated in the adsorbent and maintain the adsorption ability of the adsorbent, a microencapsulated sensible heat type heat storage material is deposited together with the adsorbent. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a dehumidifying device, and more particularly to an adsorption-type dehumidifying device that dehumidifies with an adsorbent and supplies dehumidified air to a predetermined space.

  Examples of dehumidifiers include cooling, absorption, and adsorption systems, depending on the mechanism used to separate moisture in the air, but these days, as seen in various air conditioners and desiccant air conditioners that have a dehumidifying function. In addition, for reasons such as low cost and easy maintenance, adsorption-type dry dehumidifiers that adsorb water vapor in the air by a honeycomb rotor (dehumidification rotor) carrying silica gel or zeolite are becoming widespread. In such an adsorption type dehumidifier, when the moisture of the air to be dehumidified is adsorbed by an adsorbent such as silica gel, heat of adsorption is generated and the temperature of the air to be treated rises, resulting in the relative humidity of the air to be treated. Therefore, in the adsorption process, it is necessary to cool the air to be treated in advance by using an appropriate cold heat source (cooling means).

On the other hand, “latent heat storage type adsorbents” are proposed as adsorbents applied to gas separation technologies such as PSA, which are made by mixing latent heat type heat storage materials with adsorbents such as activated carbon, zeolite, and silica gel. Such a latent heat storage type adsorbent prevents a decrease in the adsorption function of the adsorbent during adsorption by causing the latent heat type heat storage material to absorb the heat of adsorption generated when the adsorbent absorbs the gas. Adsorption is performed. And as said latent heat type heat storage material, what enclosed phase change substances, such as aliphatic hydrocarbon and wax, in the microcapsule of a particle size smaller than an adsorption material is proposed. Such a latent heat type heat storage material is considered to exhibit a high endothermic effect on the adsorbent because it uses the phase change of the substance in the microcapsule.
JP 2003-31118 A

  By the way, if the above-mentioned “latent heat storage type adsorbent” can be applied to the above-described adsorption-type dehumidifier, it is considered that the cooling energy in the adsorption process can be reduced and the dehumidifying capacity of the adsorbent can be improved. However, when the above-described latent heat storage type adsorbent is applied to a dehumidifying rotor of a dehumidifying device, the following problems occur.

  That is, in the adsorption-type dehumidifier, the adsorbent repeatedly adsorbs and desorbs while the dehumidification rotor is rotating. Therefore, the heat storage material also needs to repeat heat absorption (heat storage) and heat dissipation in a short cycle in accordance with the adsorption / desorption of the adsorbent. However, since the latent heat storage material of the latent heat storage type adsorbent described above cannot transfer a large amount of heat within the short cycle as long as it is sufficient for the phase change of the substance in the microcapsule, eventually, The phase change of the substance cannot occur and the endothermic effect cannot be fully exhibited.

  However, it is considered that the latent heat storage material mixed in the adsorbent can absorb and dissipate heat even in the above short cycle if the particle size of the microcapsules is sufficiently small compared to the adsorbent. The adsorbent used in the rotor has a very small particle size of 1 to 5 microns, and it is actually difficult to produce a microencapsulated heat storage material having a size suitable for such an adsorbent.

  The present invention has been made as a result of various studies to apply the microencapsulated heat storage material together with the adsorbent to the dehumidification rotor of the dehumidifier, and the purpose thereof can reliably suppress the temperature rise of the adsorbent itself, An object of the present invention is to provide an adsorption-type dehumidifying device capable of further increasing the effective adsorption amount of the adsorbent and further enhancing the dehumidifying ability.

  In order to solve the above problems, the present invention carries an adsorbent and a heat storage material in a dehumidification rotor, and encapsulates a heat storage material as a heat storage material in a microcapsule that does not change state in the operating temperature range and easily transfers heat. By adopting a sensible heat storage material, the adsorption heat generated when the adsorbent adsorbs water vapor is transferred from the adsorbent to the heat storage material, and when the adsorbent is regenerated, moisture is desorbed. The heat of the heat storage material was transferred to the adsorbent as part of the heat required for the heat treatment.

  That is, the gist of the present invention is an adsorption-type dehumidifying device that supplies dehumidified air to a predetermined space, and carries an air supply path to the predetermined space, an exhaust path from the predetermined space, and an adsorbent. And a breathable dehumidifying rotor disposed across the air supply path and the exhaust path, and a heating unit disposed upstream of the dehumidification rotor in the exhaust path and heating the exhaust air. The dehumidification rotor is configured to adsorb water vapor in the air with an adsorbent in the air supply path and to regenerate the adsorbent with high-temperature air in the exhaust path as the dehumidification rotor rotates. Lies in a dehumidifier characterized in that a microencapsulated sensible heat storage material is carried together with an adsorbent.

  According to the dehumidifying device of the present invention, the sensible heat storage material carried by the dehumidifying rotor absorbs the adsorption heat of the adsorbent, and can suppress the temperature rise of the adsorbent itself during adsorption, so that the effective adsorption of the adsorbent The amount can be increased, the dehumidifying capacity can be further increased, and since the sensible heat storage material that does not undergo phase change and easily transfers heat is used, it is stored in the sensible heat storage material during the adsorption process. Thus, the heat storage function of the sensible heat storage material can be exhibited according to the rotation of the dehumidification rotor.

  The dehumidifying device of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing a basic structure as an example of a dehumidifying device according to the present invention as seen from the side surface side. The dehumidifying device of the present invention is an adsorption-type dehumidifying device that supplies dehumidified air to a predetermined space, for example, various living rooms and floors in a building, an area in a factory, and a work room, and is used as a dehumidifying device for various applications. It can also be applied to an air conditioner having a temperature control function, a desiccant air conditioner, and the like.

  As shown in FIG. 1, the dehumidifying device of the present invention is an air supply path as a flow path of supply air for supplying air to a predetermined space such as the room (7) (hereinafter, described as an example of the room). (1), an exhaust path (2) as a flow path of exhaust air for exhausting air from the room (7) to, for example, the outdoors (6), and an air supply path (1) and an exhaust gas that are configured to carry an adsorbent. A breathable dehumidification rotor (3) disposed across the path (2) and an upstream side (upstream side in the air flow direction) of the exhaust path (2) from the dehumidification rotor (3); Heating means (5) for heating the exhaust air. As the dehumidification rotor (3) rotates, water vapor in the air is adsorbed by the adsorbent of the dehumidification rotor (3) in the air supply path (1), and is heated by the heating means (5) in the exhaust path (2). The adsorbent of the dehumidifying rotor (3) is regenerated with high-temperature air.

  The air supply path (1) and the exhaust path (2) are so-called air supply and exhaust ducts, and at least a part of the air supply path (1) and the exhaust path (2) are parallel to each other in the apparatus. Adjacent in parallel. Fans (41) and (42) are attached to the ends of the air supply path (1) and the exhaust path (2) on the outdoor (6) side, respectively. The cross-sectional areas of the air supply passage (1) and the exhaust passage (2) are set in consideration of the ventilation amount with respect to the room (7). Specifically, the air supply path (1) and the exhaust path (2) are per hour relative to the volume of the room (7), which is the target space, depending on the capacity of the fans (41) and (42). It is designed to be ventilated with 1/2 to 10 times the air volume. Although not shown, normally, an air cleaning filter is installed on each inlet side of the air supply path (1) and the exhaust path (2).

  The dehumidification rotor (3) has a structure capable of holding a required amount of adsorbent and allowing ventilation, and, for example, half the amount of adsorbent is positioned in the air supply passage (1) and at the same time other A half amount of adsorbent is positioned in the exhaust passage (2) and rotated across the air supply passage (1) and the exhaust passage (2), so that each half amount of the adsorbent is successively introduced. Various rotors can be adopted as long as they have a replaceable structure.

  Specifically, the dehumidification rotor (3) is formed by, for example, carrying an adsorbent on a porous structure, commonly called a honeycomb body, whose outer shape is formed in a short-axis cylindrical shape and which can be vented over both end faces thereof. It is mainly composed of a rotor body, and a drive shaft (31) provided along the center line of the rotor body and pivotally supported along the partition walls of the air supply path (1) and the exhaust path (2). The rotor main body is rotated at a low speed in one direction at a speed of 0.1 to 6 rotations / min by a driving means (not shown) such as an electric motor provided separately. Therefore, in the air supply path (1) and the exhaust path (2), the adsorbent is sequentially replaced, and the air flowing through the porous structure can be brought into contact with the adsorbent.

  A method for manufacturing a rotor body used in the dehumidifying rotor (3) is known as disclosed in JP-A-5-23584. That is, in the manufacture of the rotor body, for example, an inorganic fiber paper that has been paper-made and corrugated (corrugated) with an inorganic fiber such as a ceramic fiber and a flat inorganic fiber paper are wound on each other. A honeycomb body is formed. On the other hand, adsorbent powder is dispersed in a binder to prepare an adsorbent slurry. Next, the above honeycomb body is immersed in such an adsorbent slurry to support the adsorbent on the honeycomb body, and then the honeycomb body is fired in a firing furnace to remove organic components contained in the inorganic fiber paper. At the same time, the inorganic fiber paper is sintered. As a result, a rotor body in which the adsorbent is supported on the porous structure can be obtained.

  The heating means (5) is provided mainly for heating the exhaust air from the exhaust passage (2) during regeneration of the adsorbent. As the heating means (5), a heating element such as an electric heater is usually used, but a high-temperature heat source of a heat pump can also be used. As is well known, a heat pump includes a compressor that compresses a refrigerant that is a gas, a condenser as a high-temperature heat source that heats the surrounding air (object to be heated) by cooling and condensing the compressed refrigerant, And an evaporator as a low-temperature heat source that cools the surrounding air (an object to be cooled) by evaporating the generated refrigerant. When a heat pump is used, a condenser is disposed in the exhaust passage (2) as the heating means (5). The heating means (5) is preferably arranged in the vicinity of the dehumidifying rotor (3) so that not only air heating but also radiant heat can be used for heating the adsorbent to be regenerated.

  As the adsorbent of the dehumidifying rotor (3), known adsorbents such as silica gel, zeolite, mesoporous silica, activated carbon and the like can be used. In the present invention, an adsorbent having a differential heat of adsorption of 40 to 65 kJ / mol is used from the viewpoint of increasing the dehumidifying ability. The reason is as follows. That is, the differential adsorption heat when water vapor is physically adsorbed is approximately 44 kJ / mol or more at 25 ° C. On the other hand, when the heat of differential adsorption is larger than 65 kJ / mol, it is not preferable because a chemical adsorption state occurs and a large amount of energy is required for regeneration. A preferable adsorbent in the present invention has a lower limit of the differential adsorption heat of 44 kJ / mol or more and an upper limit of 63 kJ / mol or less.

In the present invention, zeolite is usually used as the adsorbent. In particular, the zeolite has a framework density of 10 to 18 T / nm ³ (= 1000 ^{３ 3} ), which is a numerical value indicated in “ATLAS OF ZEOLITE FRAMEWORK TYPES Fifth Revised Edition 2001” of IZA (International Zeolite Association). preferably has, it is more preferred 10~16T / nm ^3. Zeolite having a framework density in the above range has excellent adsorption capacity and has the property of desorbing and regenerating at a lower temperature.

The framework density is the number of atoms (T atoms) other than oxygen that form a skeleton per 1 nm ³ (= 1000 ^{３ 3} ). Therefore, the framework density correlates with the pore volume. In general, zeolites with a lower framework density are preferred because they have a larger pore volume, resulting in a higher adsorption capacity. Further, even if zeolite is not currently synthesized, it is expected that it can be suitably used in the present invention if the framework density is within the above range when synthesized.

  The structure of the above zeolite is determined by measuring the XRD pattern by powder XRD (powder X-ray diffraction) and comparing it with the XRD pattern described in “Collection of Simulated XRD Powder Patterns For Zeolite (1996 ELSEVIER)”. The framework density can be measured and evaluated by its structure. “ATLAS OF ZEOLITE FRAMEWORK TYPES Fifth Revised Edition 2001 ELSEVIER” describes the relationship between the structure of zeolite and the framework density.

The reason for defining the framework density within the above range is as follows. That is, when the framework density is less than 10 T / nm ³ , the adsorbable pore volume is increased, but the density of the substance is decreased, so that even if synthesis is realized in the future, the structure is likely to be unstable. On the other hand, when the framework density is larger than 18 T / nm ³ , the adsorbable pore volume becomes small and the adsorption amount becomes insufficient, so that it is not suitable as an adsorbent for the dehumidifying device.

  The above zeolite may be a natural zeolite or an artificial zeolite. For example, the artificial zeolite includes crystalline silicates and crystalline aluminophosphates according to IZA regulations. From the viewpoint of the above-described adsorption / desorption characteristics, preferred structures of zeolite include CHA structure, AEI structure, ERI structure and / or AFI structure in the structure defined by IZA.

  Among zeolites, aluminophosphates having at least Al and P in the skeleton structure are preferable. The crystalline aluminophosphates include aluminum (Al) and phosphorus (P) in the skeleton structure, and further include crystalline metalloaluminophosphates in which a part of aluminum or phosphorus is substituted with a heteroatom. The heteroatom in this case is an atom that is substituted to further improve the hydrophilicity of the zeolite, and as such an atom, silicon, lithium, magnesium, titanium, zirconium, vanadium, chromium, manganese, iron, cobalt, nickel , Palladium, copper, zinc, gallium, germanium, arsenic, tin, calcium, boron or the like. In the present invention, iron (Fe) and silicon (Si) are particularly preferable.

  Further, as described above, mesoporous silica can be used as the adsorbent for the dehumidifying rotor (3). Examples of such mesoporous silica include mesoporous silica synthesized under acidic conditions such as SBA-1 (Chem.Master 3 (2001), pages 2237 to 2239), and mesoporous silica synthesized under alkaline conditions. Silica, for example, MCM-41 (a classification symbol described in Microporous Materials 2 (1993), pages 17 to 26, etc.). Mesoporous silica can be used, for example, as described in “Zeolite Science and Engineering, edited by Kodansha 2000”, with a silica source, an alumina source added as necessary and becoming heteroatoms, a phosphorus source, etc. It is synthesized from a mineralizer to be added, a surfactant as a template, and water. In general, mesoporous silica is also synthesized by hydrothermal synthesis, but in some cases, it can also be synthesized at room temperature and normal pressure.

  A feature of the present invention is that a sensible heat storage material encapsulated in microcapsules is supported on a dehumidification rotor (3) together with an adsorbent. In the present invention, the microencapsulated sensible heat storage material refers to a heat storage material formed by encapsulating a heat storage material that does not substantially change in phase within the operating temperature range. As a heat storage material mixed in the adsorbent, of course, a latent heat type heat storage material in which a phase change heat storage material is enclosed in a microcapsule is also conceivable, but as described above, the phase change has a size suitable for the particle size of the adsorbent. It is not practical to encapsulate the substance. In the present invention, by using the sensible heat storage material together with the adsorbent, the temperature rise of the adsorbent during adsorption can be suppressed, and the effective adsorption amount of the adsorbent can be further increased.

  In the adsorption-type dehumidifier, the dehumidification rotor (3) rotates at a relatively high speed. Therefore, in the sensible heat storage material, the ability to store and dissipate heat in a short time is required rather than the absolute amount of heat storage. It is done. From such a viewpoint, the sensible heat storage material has no phase change in the range of 5 to 99 ° C., and the specific heat at 25 ° C. is 0.8 kJ / (kg · ° C.) or more, preferably 1.2 kJ / (kg・ Thermal storage material of ° C or higher is used. When the specific heat of the heat storage material is less than 0.8 kJ / (kg · ° C), there is no difference from the specific heat of the paper or glass fiber used as the base material of the rotor body of the dehumidification rotor (3), and the heat capacity is increased. Since the effect cannot be obtained, it is inappropriate. Although it is preferable that the specific heat is large, the upper limit of the specific heat is considered to be 10.0 kJ / (kg · ° C.) or less in comparison with water having a large specific heat.

  By the way, the adsorbent used for the dehumidifying device is set to a very small particle size of 1 to 5 microns in order to increase the contact area with air. On the other hand, the sensible heat type heat storage material is formed to have an average particle size larger than the average particle size of the adsorbent from the relationship between the heat storage amount (amount of heat transferred from the adsorbent) and the heat storage / heat release rate. The particle size of the sensible heat storage material is generally 5 to 500 microns, preferably 10 to 200 microns. That is, when the particle size of the sensible heat storage material is smaller than 5 microns, the ratio of the microcapsule shell to the heat storage material in the microcapsule is increased, and the amount of stored heat is substantially reduced. Therefore, it is not preferable. On the other hand, when the particle size is larger than 500 microns, the ratio of the adsorbent adjacent to the heat storage substance in the microcapsule is decreased, and the heat of adsorption generated by the adsorbent cannot be sufficiently absorbed.

  In the dehumidification rotor (3), the ratio of the sensible heat storage material to the total amount of the adsorbent and sensible heat storage material carried on the rotor body is usually 0.1 to 50% by weight, preferably 1 to 45%. % By weight. The microencapsulated sensible heat storage material is intended to absorb the heat of adsorption generated when the adsorbent adsorbs water vapor, and the sensible heat storage material between the adsorbent carried on the rotor body and the sensible heat storage material. When the sensible heat storage material is less than 0.1% by weight with respect to the total amount, the endothermic effect cannot be sufficiently exhibited, and when it is more than 50% by weight, the adsorbent is relatively reduced, Since the function of adsorbing water vapor is lowered, it is not preferable. Since the blending ratio of the sensible heat storage material to the adsorbent is affected by the state of wet air to be treated and the operating conditions of the dehumidifying rotor (3), it is necessary to blend according to those conditions.

  The constituent materials of the sensible heat storage material as described above, that is, the heat storage material in the microcapsule includes water, glycols such as ethylene glycol and propylene glycol, aqueous solutions of glycols such as ethylene glycol and propylene glycol, mineral oil And oils such as silicone oil, carbon bricks, high alumina bricks, zircon bricks, chamotte bricks, magnesia bricks, calcined magnesia bricks, wax stone bricks, blast furnace bottom bricks and the like, among which water and mineral oil are preferred. . When a liquid heat storage material is used, it may be gelled for the purpose of adjusting thermal conductivity. Furthermore, when using aqueous solution of glycols, such as ethylene glycol and propylene glycol, a water absorbing polymer, carboxymethylcellulose, etc. can be used.

  As the material of the microcapsule (shell), various known materials can be used, and examples of the polymer compound include resins. Examples of the polymer compound include formaldehyde urea resin, urea resin, urea formaldehyde polyacrylic acid copolymer, heterocyclic amine aldehyde copolymer, polystyrene, polyvinyl acetate, polyacrylonitrile, polyethylene, polybutyl methacrylate, gelatin and the like. Is mentioned.

  The method for microencapsulating the heat storage material is not particularly limited. For example, a known method such as a coacervation method, an interfacial polymerization method, an interfacial reaction method (in situ method), or a method using yeast is employed. Is possible. Specifically, for example, the microencapsulation technology of the phase change material exemplified in JP2003-31118A can be used. That is, in order to encapsulate the heat storage material, the heat storage material is emulsified in a suspension (dispersion) medium using an emulsifier or the like, and an initial condensate (prepolymer) corresponding to the desired resin is added thereto. Thereafter, by raising the temperature and proceeding the polymerization reaction, a heat storage material having a resin wall, that is, a suspension (dispersion) of microcapsules in which the heat storage material is sealed in a resin capsule can be prepared.

  The suspending medium and emulsifier used for microencapsulation can be appropriately selected from known ones according to the production method, capsule material, and the like. As the suspending medium, water is particularly preferable. For example, alcohols such as methanol, ethanol and propanol, and water-miscible solvents such as acetone can also be used. The particle size of the microcapsules can be controlled by setting conditions such as the type and concentration of the emulsifier during encapsulation, the temperature and time during emulsification, and the emulsification method.

  In addition, as a method for producing microcapsules using water as a heat storage material, the method exemplified in “Iwanami Hen, Riken Encyclopedia 4th Edition”, page 1245, that is, for the aqueous phase during emulsion preparation A method in which a substance is dissolved and dispersed and wrapped in a capsule can be used. In such a microencapsulation method, a water-in-oil emulsion is prepared, a polymer thin film is formed by interfacial polycondensation at the interface between the microemulsion particles and the solvent liquid, and then the particles are covered. Capsules are separated and purified by dialysis. By utilizing the above method, it is also possible to wrap the water thickened with the water-absorbing polymer in the capsule.

  Next, the operation method of the dehumidifier of the present invention and the function of the dehumidification rotor (3) will be described. For example, when the room (7) is dehumidified by the dehumidifying apparatus of the present invention, the dehumidification rotor (3) is rotated in one direction, the fans (41) and (42) are operated, and the outdoor (through the air supply path (1)). The outside air is supplied from (6) to the room (7), and the room air is discharged from the room (7) to the outdoors (6) through the exhaust passage (2). Further, the air in the exhaust passage (2) on the upstream side of the dehumidification rotor (3) (inside of the room (7) with respect to the dehumidification rotor (3)) is heated by the heating means (5).

  As a result of the above operation, the dehumidification rotor (3) adsorbs water vapor in the air by the adsorbent in the air supply path (1) and is heated by the heating means (5) in the exhaust path (2). Regenerate the adsorbent with hot air. That is, the adsorbent of the dehumidifying rotor (3) located in the air supply path (1) adsorbs water vapor from the air flowing toward the room (7) through the air supply path (1), and is located in the exhaust path (2). The adsorbent of the dehumidifying rotor (3) is regenerated by desorbing moisture by contact with preheated high-temperature air.

  In the dehumidifying apparatus of the present invention, when the adsorbent of the dehumidifying rotor (3) adsorbs water vapor, the sensible heat storage material mixed in the adsorbent absorbs and stores the heat of adsorption generated by the adsorbent, and the adsorbent Suppresses the temperature rise. Therefore, the adsorbent can sufficiently maintain the intended adsorption capacity and can exhibit a high dehumidification capacity. In addition, when the adsorbent of the dehumidifying rotor (3) desorbs moisture, the temperature of the adsorbent itself decreases due to the latent heat of vaporization (heat lost during desorption), so the sensible heat storage material was stored in this Releases heat to the adsorbent. Therefore, the temperature of the sensible heat storage material can be restored to a state where the temperature is lowered and heat can be absorbed.

  As described above, according to the dehumidifying device of the present invention, the sensible heat storage material carried by the dehumidifying rotor (3) absorbs the adsorption heat of the adsorbent and suppresses the temperature rise of the adsorbent itself during the adsorption. Therefore, the effective adsorption amount of the adsorbent can be further increased, and the dehumidifying ability can be further enhanced. Since the sensible heat storage material carried on the dehumidification rotor (3) together with the adsorbent is an easily stored heat storage material that does not involve phase change, the heat stored in the sensible heat storage material in the adsorption process. Can be easily released in the adsorbent regeneration step, and the heat storage function of the sensible heat storage material can be repeatedly exhibited according to the rotation of the dehumidification rotor (3).

  In the dehumidifying apparatus of the present invention, in order to further enhance the adsorption capacity of the adsorbent, the cooling means is provided upstream (upstream in the air flow direction) of the air supply passage (1) from the dehumidification rotor (3). It may be arranged. Moreover, as such a cooling means, an evaporator (low temperature heat source) of a heat pump that cools surrounding air (an object to be cooled) by evaporation of the refrigerant can be used. Furthermore, the air supply path (1) and the exhaust path (2) need only be adjacent to each other at least in the apparatus in which the dehumidification rotor (3) is disposed, and are independent of each other depending on the installation location and the form of the apparatus. It can be configured as a flow path of the shape.

It is sectional drawing seen from the side surface which shows the basic structure as an example of the dehumidification apparatus which concerns on this invention.

Explanation of symbols

1: Air supply path 2: Exhaust path 3: Dehumidification rotor 31: Drive shaft 41: Fan 42: Fan 5: Heating means

Claims (9)

  An adsorption-type dehumidifying device that supplies dehumidified air to a predetermined space, comprising an air supply path to the predetermined space, an exhaust path from the predetermined space, and an adsorbent carrying the air supply path. A breathable dehumidification rotor disposed across the exhaust path, and a heating means disposed upstream of the dehumidification rotor in the exhaust path and heating the exhaust air, to rotate the dehumidification rotor. Accordingly, the water vapor in the air is adsorbed by the adsorbent in the air supply passage, and the adsorbent is regenerated by the high-temperature air in the exhaust passage, and the dehumidification rotor has a microencapsulated visible light. A dehumidifying device in which a heat-type heat storage material is supported together with an adsorbent.   The dehumidifying device according to claim 1, wherein the sensible heat storage material is a heat storage material having no phase change in the range of 5 to 99 ° C and a specific heat at 25 ° C of 0.8 kJ / (kg · ° C) or more.   The dehumidifying device according to claim 1 or 2, wherein the microencapsulated sensible heat storage material has an average particle size larger than that of the adsorbent.   The dehumidifier according to any one of claims 1 to 3, wherein the ratio of the sensible heat storage material to the total amount of the adsorbent and the sensible heat storage material is 0.1 to 50% by weight.   The dehumidifier according to any one of claims 1 to 4, wherein the adsorbent is an adsorbent having a differential adsorption heat of 40 to 65 kJ / mol. The dehumidifier according to any one of claims 1 to 5, wherein the adsorbent is an adsorbent having a framework density of 10.0 to 18.0 T / nm ³ .   The dehumidifier according to any one of claims 1 to 6, wherein the adsorbent is an aluminophosphate having at least Al and P in the skeleton structure.   The dehumidifying device according to claim 7, wherein the adsorbent is an adsorbent having Si and / or Fe as heteroatoms in a skeleton structure.   The dehumidifying device according to any one of claims 1 to 5, wherein the adsorbent is mesoporous silica.