JP2022157262A - Regenerative device - Google Patents

Abstract

To provide a regenerative device capable of diffusing steam which is vaporized from an adsorption member in a heating furnace, and quickly discharging dew condensation water and enhancing heating efficiency of a substance to be heated by a microwave.SOLUTION: A regenerative device 1 comprises: a desiccant rotor 11 absorbing water molecules; a metal heating furnace 13 which is provided inside surrounding at least a part of the desiccant rotor 11 and to which an electromagnetic wave is output from an oscillator 13B; and a covering member 15 formed of a dielectric body surrounding the desiccant rotor 11 in the heating furnace 13.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to playback devices.

Conventional techniques are known for vaporizing liquids using microwaves.

JP 2013-236984 A JP 2012-081426 A JP 2012-088041 A

The prior art described above describes vaporizing a liquid, but does not disclose a technique for recovering the vaporized water vapor. In a regeneration device that uses microwaves to heat water molecules adsorbed by an adsorption member to recover vaporized water vapor, a metal heating furnace that surrounds the adsorption member and emits microwaves is used, and steam is emitted from the heating furnace. can be collected.

It is known that the dielectric loss coefficient (εr·tan δ) and the absorbed power (P ₁ ) of microwaves vary greatly depending on the relative dielectric constant (εr) and dielectric loss tangent (tan δ), which are physical properties unique to dielectrics. (See [Formula 1].). For example, when two substances with significantly different dielectric loss coefficients (εr tan δ) (e.g., water and PP (polypropylene)) are placed in a heating furnace and irradiated with microwaves at the same time, the dielectric loss coefficient (εr tan δ) Microwaves are intensively absorbed and heated by substances with a large value, and substances with a small value are not absorbed and heated. In this way, microwaves have the characteristic of selectively heating substances, but in the heating furnace, the substance to be heated and another substance with a large dielectric loss coefficient (εr·tan δ) coexist. As a result, the electric power (P ₁ ) absorbed by the material to be heated becomes small, and there is a problem that the heating efficiency is lowered. For example, when an adsorption member that has adsorbed water molecules is placed in a heating furnace and heated by microwaves, water vapor desorbed from the adsorption member diffuses into the heating furnace and condenses in the heating furnace. At this time, if the microwave heating is performed while the condensed water remains in the heating furnace, the microwave power is applied to the water molecules in the adsorption member and the remaining condensed water at the same time. The heating efficiency of the water molecules inside is reduced.

Further, when a metal heating furnace that surrounds the adsorption member and emits microwaves is used and water vapor is recovered from the heating furnace, the water vapor vaporized from the adsorption member diffuses inside the heating furnace. If the diffused water vapor stays in the heating furnace, a phenomenon occurs in which the desorbed water vapor is again adsorbed by the adsorption member. This is because, in a state in which the desorbed water vapor remains in the space, for example, due to uneven heating or movement (rotation, etc.) of the adsorption member, the low-temperature region of the adsorption member in the heating furnace comes into contact with the water vapor. occurs in That is, the amount of water originally intended to be desorbed and condensed decreases due to re-adsorption, which is not preferable from the viewpoint of energy efficiency.

In general, when water vapor is condensed at a temperature difference between room temperature and desorbed water vapor, condensation becomes difficult if the water vapor temperature and concentration (water vapor partial pressure) are low. The larger the space volume in the heating furnace, the lower the concentration of water vapor, and the more easily the thermal energy of the desorbed water vapor is transferred to the air in the heating furnace. As a countermeasure against this, it is preferable to divide the space in the heating furnace appropriately into small sections.

The disclosed technology has been made in view of the above, and is capable of preventing the diffusion of water vapor vaporized from the adsorption member inside the heating furnace, quickly discharging the condensed water, and heating the substance to be heated by microwaves. It is an object of the present invention to provide a regeneration device with high heating efficiency.

A regeneration device of one aspect includes an adsorption member that adsorbs water molecules, a metal heating furnace that surrounds at least a portion of the adsorption member and in which electromagnetic waves are output by an oscillator, and a dielectric that surrounds the adsorption member inside the heating furnace. a covering member formed of a body.

According to one aspect of the regeneration device, it is possible to prevent scattering of water vapor vaporized from the adsorption member inside the heating furnace, and to improve the heating efficiency of the substance to be heated by microwaves.

FIG. 1 is a configuration diagram of a playback device according to an embodiment. FIG. 2 is an external view of the heating furnace of the regeneration device according to the embodiment. FIG. 3 is a configuration diagram of another example of the playback device according to the embodiment. FIG. 4 is a configuration diagram of the playback device according to the embodiment. FIG. 5 is a diagram showing the antenna of the heating furnace. FIG. 6 is a diagram showing electric field distribution in a heating furnace. FIG. 7 is a diagram showing the direction of current flowing through the inner wall of the heating furnace. FIG. 8 is a diagram for explaining heat transfer routes. FIG. 9 is a diagram for explaining the relationship between the adsorption member and the air temperature. FIG. 10 is a diagram showing the direction of current flowing through the inner wall of the heating furnace and the arrangement of openings.

Hereinafter, embodiments of the reproducing apparatus disclosed in the present application will be described in detail based on the drawings. Note that the reproducing apparatus disclosed in the present application is not limited to the following embodiments.

The regeneration device 1 of the embodiment adsorbs water molecules in the air, heats the adsorbed water molecules to form water vapor, and condenses the water vapor to regenerate the water molecules. The regeneration device 1 includes a desiccant rotor 11, a blower fan 12, a heating furnace 13, a condenser 14, and a covering member 15, as shown in FIG.

The desiccant rotor 11 has an annular shape in which a through hole 11A penetrating in the plate thickness direction is formed in the central portion of the disc shape. The desiccant rotor 11 is formed in a porous honeycomb structure in which ventilation cavities are provided in the plate thickness direction. The desiccant rotor 11 is rotatably supported by the support portion 11B about an axis extending in the thickness direction of the desiccant rotor 11 with the through hole 11A as the center. The desiccant rotor 11 is rotationally driven by driving means (not shown). The desiccant rotor 11 has a honeycomb structure formed of heat-resistant paper (hereinafter referred to as base material, such as glass paper), and a desiccant material is bonded to the surface of the base material. The desiccant material has a large number of pores, and adsorbs water molecules contained in the air when the air passes through the vicinity of the pores. Thus, the desiccant rotor 11 is configured as an adsorption member that adsorbs water molecules.

As shown in FIG. 4, the support portion 11B that rotatably supports the desiccant rotor 11 has a rotation support portion 11Ba that is inserted into the through hole 11A of the desiccant rotor 11 and rotatably supports the desiccant rotor 11. . The support portion 11B is formed so as to pass through the desiccant rotor 11 in the plate thickness direction so as to allow air to pass therethrough. Therefore, the support portion 11B is also configured as a guide member that guides air to the desiccant rotor 11. As shown in FIG. The desiccant rotor 11 is provided with a gear 11Ca on its outer circumference. The support portion 11B is provided with a motor 11Cc that drives a drive gear 11Cb that meshes with the gear 11Ca. Thereby, the desiccant rotor 11 is rotatably supported by the support portion 11B. In addition, although not shown in the figure, the support portion 11B is provided with a filter at a portion that allows air to pass toward the desiccant rotor 11. For example, PM (Particulate Matter) contained in the air guided toward the desiccant rotor 11 is filtered. ) 2.5, and may be configured to capture sand, pollen, and the like.

Blower fan 12 sends air toward desiccant rotor 11 via duct 12A and support portion 11B. The air sent by the blower fan 12 passes through the honeycomb structure of the desiccant rotor 11, and water molecules are adsorbed on the desiccant material in the process.

In the embodiment, the heating furnace 13 is composed of a metal (non-magnetic metal) housing 13A surrounding the ring-shaped upper half of the desiccant rotor 11 . The housing 13A is formed with an opening 13Aa through which a portion of the rotating desiccant rotor 11 can pass. 5 and 6, and the electric field distribution in the heating furnace has three peaks of electric field intensity as shown in FIG. (TE103 mode). A part of the desiccant rotor 11 continuously passes through the inside of the housing 13A through the opening 13Aa by rotating itself. The heating furnace 13 has an oscillator 13B that outputs microwaves (electromagnetic waves) in a specific frequency band such as 2.4 GHz to 2.5 GHz. The desiccant rotor 11 inside the housing 13A of the heating furnace 13 is heated by the microwaves output by the oscillator 13B. This heating heats and evaporates water molecules adsorbed to the desiccant material of the desiccant rotor 11 and water molecules adhering to the surface of the substrate (such as glass paper) of the desiccant rotor 11 . In addition, an opening 13Ab is formed in the housing 13A at a portion facing the disk-shaped desiccant rotor 11 in the plate thickness direction. The hole of the opening 13Ab is formed such that the longitudinal dimension L of the slit shape is less than λg/4 with respect to the guide wavelength λg at the maximum frequency of the output microwave from the viewpoint of electromagnetic wave leakage prevention. The holes are oriented parallel to the direction of the current flowing through the inner wall of the heating furnace 13 (see FIG. 7 for the direction of the current). A portion is cut out.) In order to prevent leakage of electromagnetic waves, the hole of the opening 13Ab may be made of punching metal having a wavelength of less than λg/4 with respect to the guide wavelength λg at the maximum frequency of the output microwave. According to the playback device 1 of the embodiment, electromagnetic wave leakage can be suppressed by such arrangement and shape of the opening 13Ab.

The oscillator 13B is a semiconductor-type oscillator using, for example, a silicon (Si) semiconductor, a gallium nitride (GaN) semiconductor, or the like, for microwave oscillation. It can emit waves. Since the oscillator 13B outputs microwaves by a semiconductor method, it is possible to control the frequency of the microwaves to be output.

The condenser 14 is arranged outside the housing 13A. The condenser 14 is connected to one side of the housing 13A of the heating furnace 13 . The recovery section 14A is connected to the condenser 14 . The circulation section 14B is connected to the other side of the housing 13A of the heating furnace 13 and is also connected to the recovery section 14A. Therefore, in the condenser 14, the recovery section 14A and the circulation section 14B constitute a series of circulation paths with the housing 13A of the heating furnace 13 interposed in the middle. The regeneration fan 14C is provided between the recovery section 14A and the circulation section 14B. The regeneration fan 14C generates a circulation flow of moist air in a series of circulation paths formed by the condenser 14, recovery section 14A, circulation section 14B, and housing 13A. Here, one side of the housing 13A to which the condenser 14 is connected and the other side of the housing 13A to which the circulation section 14B is connected are portions of the disk-shaped desiccant rotor 11 facing each other in the plate thickness direction. be. Therefore, the circulating flow generated by the regeneration fan 14</b>C flows through the porous honeycomb structure of the desiccant rotor 11 inside the housing 13</b>A of the heating furnace 13 . As described above, inside the housing 13A of the heating furnace 13, the water molecules of the desiccant rotor 11 heated by microwaves evaporate. The evaporated water vapor reaches the condenser 14 by a circulating flow and is condensed into water. The air sent toward the desiccant rotor 11 by the blower fan 12 is also blown around the condenser 14 to cool the condenser 14, thereby promoting the condensation of water vapor to water in the condenser 14. be done. Further, the condensed water reaches the recovery section 14A from the condenser 14 and is discharged to the outside of the circulation path from the recovery hole 14Aa of the recovery section 14A. In this way, the regeneration device 1 of the embodiment adsorbs water molecules in the air, heats the adsorbed water molecules to form water vapor, and condenses the water vapor to regenerate water.

The covering member 15 is provided inside the housing 13A of the heating furnace 13 . The covering member 15 covers the desiccant rotor 11 inside the housing 13A. Specifically, the covering member 15 includes a covering portion 15A and an opening 15B.

The covering portion 15A is formed in a semicircular tubular shape, and covers one portion of the through hole 11A of the desiccant rotor 11 so as to surround the annular upper half portion of the desiccant rotor 11 arranged inside the housing 13A. placed throughout the section. Further, the covering portion 15A of the embodiment exposes the annular lower half portion of the desiccant rotor 11 to the outside, and is arranged so as not to hinder the rotation of the desiccant rotor 11 . Further, the covering portion 15A of the embodiment is provided with blocking portions 15Aa that block the thickness direction of the desiccant rotor 11 respectively.

The opening 15B is provided so as to communicate from the inside of the housing 13A of the heating furnace 13 to the outside through the opening 13Ab. The opening 15B is provided in each closing portion 15Aa of the covering portion 15A inside the housing 13A. The opening 15B is formed in a tubular shape extending from each closing portion 15Aa through the housing 13A to the outside. Therefore, the openings 15B are provided corresponding to the respective closed portions 15Aa of the covering portion 15A, and penetrate through one side and the other side of the housing 13A in the plate thickness direction of the desiccant rotor 11 and open to the outside. is provided. In addition, a plurality of openings 15B of the embodiment are provided so as to extend to the outside of the housing 13A. One or more openings 15B may be provided on one side and the other side of the housing 13A.

In this manner, the covering member 15 is configured as a partition wall that surrounds the desiccant rotor 11 inside the housing 13A by the covering portion 15A and the opening 15B and isolates the desiccant rotor 11 from the inner wall of the housing 13A of the heating furnace 13. be done. In addition, the covering member 15 is connected to the condenser 14 at an opening 15B extending to the outside on one side of the housing 13A. Also, in the covering member 15, the circulation part 14B is connected to an opening 15B extending to the outside of the housing 13A on the other side. While the opening 15B is connected to the condenser 14 and the circulation section 14B, it is sealed with the packing 14E. Therefore, the covering member 15 is arranged inside the housing 13A of the heating furnace 13, and the condenser 14 and the circulation part 14B are connected to form a closed internal flow path which is a part of the above-described circulation path. configure.

Also, the covering member 15 is formed of a dielectric. The dielectric of embodiments is a material that is not heated by microwaves. In the embodiment, the material that is not heated by the microwaves output by the oscillator 13B, which is a semiconductor oscillator, has a low dielectric loss in the equation (1) of the microwave absorption power (heating efficiency) of the dielectric, that is, the equation (1 ) is a material with small ε _γ ·tan δ and small P. Such a material is preferably a material having a dielectric loss factor of 0.0005 or less. Materials with a dielectric loss coefficient of 0.0005 or less are general-purpose plastics with a heat distortion temperature of less than 100° C. For example, high density polyethylene (HDPE), polypropylene (PP), and polystyrene (PS: polystyrene). Materials with a dielectric loss coefficient of 0.0005 or less include polytetrafluoroethylene (PTFE) and polyamideimide (PAI), which are engineering plastic materials with a heat distortion temperature of 100° C. or higher. : polyamide-imide) and polyphenylene sulfide (PPS). Dielectric materials include silica glass, borosilicate glass, and alumina (Al203).

As described above, the regeneration device 1 of the above-described embodiment includes the desiccant rotor 11, which is an adsorption member that adsorbs water molecules, and the metallic desiccant rotor 11 that surrounds at least a portion of the desiccant rotor 11 and outputs electromagnetic waves from the oscillator 13B. A heating furnace 13 and a coating member 15 made of a dielectric surrounding the desiccant rotor 11 inside the heating furnace 13 are provided.

According to the regeneration device 1 of the embodiment, by surrounding the desiccant rotor 11 inside the heating furnace 13 (housing 13A) with the covering member 15, when the steam evaporated from the desiccant rotor 11 scatters inside the heating furnace 13 , the coating member 15 serves as a partition to prevent water vapor from adhering to the inner wall of the heating furnace 13 . As a result, the concentration and temperature of the water vapor vaporized from the adsorption member inside the coating member 15 in the heating furnace are suppressed from being lowered, and the water vapor is easily condensed. Further, according to the playback device 1 of the embodiment, since the covering member 15 is made of a dielectric material with low dielectric loss, it is possible to prevent the covering member 15 from being heated by the electromagnetic waves output from the oscillator 13B, and the desiccant Heating efficiency of the rotor 11 can be improved.

In addition, in the regeneration device 1 of the embodiment, the covering member 15 is formed with an opening 15B leading to the outside of the heating furnace 13 .

According to the regeneration device 1 of the embodiment, the steam and condensed water diffused inside the covering member 15 can be moved to the outside of the heating furnace 13 by the opening 15B. As a result, it is possible to prevent the microwaves from being applied to the condensed water during heating, and it is possible to maintain the heating efficiency. In addition, the recovery efficiency of water molecules can be improved by discharging the water vapor to the outside of the heating furnace by ventilation.

Here, as an example, the opening 15B is provided so as to open in the plate thickness direction of the disk-shaped desiccant rotor 11 . Further, the opening 15B is arranged to be open in a direction parallel to the direction of the current flowing through the inner wall of the heating furnace 13, similarly to the opening 13Ab (see FIG. 5). 2, the opening 15B is formed as a rectangular slit-shaped hole. The shape of the hole of the opening 15B is not limited to a rectangular shape, and may be, for example, a circular or elliptical shape. Further, according to the playback device 1 of the embodiment, the elliptical or rectangular opening 15B has fewer edges, a wider opening area, and a lower airflow resistance than the circular opening 15B. and water molecules are less likely to adhere, and dew condensation is less likely to occur. The number of openings 15B may be adjusted according to the size of the honeycomb voids in the desiccant rotor 11, the pressure loss determined by the size of the voids inside the condenser 14, and the static pressure of the regenerative circulation fan. Further, the opening 15B is provided so as to extend to the outside of the housing 13A of the heating furnace 13. This prevents the adhesion of water vapor and water molecules to the inner wall of the housing 13A and prevents the water vapor from entering the condenser 14. This is preferable for smooth supply.

The opening 13Ab may be opened in a direction parallel to the direction of current flowing through the inner wall of the heating furnace 13 (see FIG. 10. FIG. 10 shows a portion of the housing 13A of the heating furnace 13). ), for example, in FIG.

FIG. 6 shows a case where the resonance mode of the microwave MW in the heating furnace is the TE (Transverse Electric) 103 mode. Conceivable.

Moreover, in the playback device 1 of the embodiment, the covering member 15 is preferably made of a material having a dielectric loss coefficient of 0.0005 or less. Moreover, the covering member 15 is preferably made of a general-purpose plastic material or an engineering plastic material having a dielectric loss coefficient of 0.0005 or less. Also, the covering member 15 is preferably made of quartz glass, borosilicate glass, or alumina.

According to the playback device 1 of the embodiment, by forming the covering member 15 with a dielectric, by applying the above material, it is possible to prevent the covering member 15 from being heated by the electromagnetic waves output from the oscillator 13B. The effect of improving the heating efficiency of the desiccant rotor 11 can be obtained remarkably.

Here, FIG. 3 is a configuration diagram of another example of the playback device according to the embodiment.

In the above-described regeneration device 1, in the circulation path formed by the condenser 14 and the covering member 15, the steam is sent to the outside of the casing 13A of the heating furnace 13, and the condenser 14 outside the casing 13A Condensation occurs due to the temperature difference between the air (outside air or room temperature). The air containing water vapor inside the housing 13A of the heating furnace 13 is heated by microwaves and has a higher temperature than the outside, but the temperature of the air sent to the outside of the housing 13A in the microwave system is low. This is because the heat transfer route in the microwave method is water in the adsorption member which is the substance to be heated→adsorption member→air (see FIG. 8). It originates in air temperature becoming low (refer FIG. 9). As shown in FIG. 8, the heat transfer route is such that when water 101 adsorbed by a desiccant rotor 11, which is an adsorption member, is heated by microwaves 100, the heat obtained by water 101 is transferred to zeolite 102, desiccant rotor 11, It divides into the gap 11a (air layer). When the heat received by the zeolite 102 becomes equal to or greater than the heat received by the desiccant rotor 11 , the water 101 begins to desorb from the zeolite 102 into the air 103 outside the desiccant rotor 11 . For example, when the temperature and humidity of the air sent to the outside of the housing 13A is 35° C. and 90% RH, the dew point temperature is 31.1° C. according to the tenns formula, and the outside air temperature is 33° C. or higher. does not condense and is difficult to recover as water. In order to solve this problem, it is conceivable to increase the microwave output, but the power consumption increases.

On the other hand, the regeneration device 3 shown in FIG. 3 does not have the condenser 14 of the regeneration device 1 and does not constitute a circulation path. Further, the reproducing device 3 has a covering member 16 instead of the covering member 15 of the reproducing device 1 . The covering member 16 includes a covering portion 16A and an opening 16B.

The covering portion 16A is formed in a semicircular tubular shape, and covers one portion of the through hole 11A of the desiccant rotor 11 so as to surround the annular upper half portion of the desiccant rotor 11 arranged inside the housing 13A. placed throughout the section. Further, the covering portion 16A of the embodiment exposes the annular lower half portion of the desiccant rotor 11 to the outside, and is arranged so as not to hinder the rotation of the desiccant rotor 11 . Further, the covering portion 16A of the embodiment is provided with blocking portions 16Aa that block the thickness direction of the desiccant rotor 11 respectively. The opening 16B is formed through the lower portion of the covering portion 16A in the vertical direction.

The covering member 16 is configured as a partition wall that surrounds the desiccant rotor 11 inside the housing 13A and isolates the desiccant rotor 11 from the inner wall of the housing 13A of the heating furnace 13 by the covering portion 16A. Also, the covering member 16 is made of a dielectric like the covering member 15 of the playback device 1 .

The playback device 3 also has a cooling fan 17 that sends cooling air to the interior of the housing 13A of the heating furnace 13 . A housing 13A of the heating furnace 13 is formed with ventilation holes 13Ac through which cooling air is fed into and discharged. A duct 17A of the cooling fan 17 is connected to each ventilation hole 13Ac, and constitutes a path through which cooling air passes along the closed portion 16Aa inside the housing 13A. The blowing direction may be the vertically downward direction of the apparatus as shown in FIG. 3 or the opposite direction to FIG.

Further, in the regeneration device 3, a housing 13A of the heating furnace 13 is formed with a drain port 13Ad. The drain port 13Ad is formed to penetrate vertically and is arranged directly below the opening 16B of the covering member 16 . Therefore, the opening 16B of the covering member 16 is provided to communicate from the inside of the housing 13A of the heating furnace 13 to the outside through the drain port 13Ad. In order to suppress electromagnetic wave leakage, the ventilation hole 13Ac and the drain port 13Ad, which are holes formed in the housing 13A of the heating furnace 13, are provided in the tube at the maximum frequency of the microwave that outputs the longitudinal dimension L. It is formed to have a wavelength of less than λg/4 with respect to the wavelength λg, and is arranged with an opening parallel to the direction of current flowing through the inner wall of the heating furnace 13 .

As described above, in the regeneration device 3 of the embodiment, the desiccant rotor 11 is surrounded by the covering member 16 inside the heating furnace 13 (housing 13A), so that the water molecules adsorbed by the desiccant rotor 11 and the water molecules are evaporated. When water vapor scatters inside the heating furnace 13 , the coating member 16 serves as a partition to prevent water molecules and water vapor from adhering to the inner wall of the heating furnace 13 . As a result, according to the regeneration device 3 of the embodiment, it is possible to prevent the vapor vaporized from the desiccant rotor 11, which is the adsorption member, from scattering inside the heating furnace 13, and to heat the desiccant rotor 11, which is the substance to be heated, by microwaves. can improve efficiency. Further, according to the playback device 3 of the embodiment, since the covering member 16 is made of a dielectric material with a small dielectric loss, it is possible to prevent the covering member 16 from being heated by the electromagnetic waves output from the oscillator 13B. Heating efficiency of the rotor 11 can be improved.

Further, the regeneration device 3 of the embodiment configures a path for the cooling air to pass through the inside of the housing 13A of the heating furnace 13, so that outside air having a low temperature is introduced into the housing 13A having a higher temperature than the outside. is sent in to ensure a temperature difference, and heat exchange with the internal air of the covering member 16 can be performed inside the housing 13A. Therefore, according to the regeneration device 3 of the embodiment, water vapor can be condensed into water inside the covering member 16, and the water recovery efficiency can be improved. In addition, in the reproducing device 3, the blocking part 16Aa through which the cooling air passes preferably has a thickness of less than 1 mm. This is because the closed portion 16Aa is made of a dielectric material with low thermal conductivity, which makes heat exchange more difficult than with metal. Although it is preferable to use a metal for the closing portion 16Aa in heat exchange, there is a concern about safety because an electric field may concentrate on the metal edge portion under microwave irradiation. Therefore, as a mitigation measure, the thickness of the closing portion 16Aa, which is a dielectric, is reduced (reduced thermal resistance) to promote heat exchange. The water condensed inside the covering member 16 is discharged from the opening 16B of the covering member 16 to the outside of the housing 13A through the drain port 13Ad of the housing 13A and collected.

Further, according to the regeneration device 3 of the embodiment, the circulation path shown in the regeneration device 1 is not necessary, the number of parts constituting the circulation path can be reduced, the cost can be reduced, and the size of the device can be reduced.

The embodiments described above are provided as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, as well as the scope of the invention described in the claims and equivalents thereof.

1, 3 regeneration device 11 desiccant rotor (adsorption member)
13 heating furnace 13A heating furnace housing 13Ac ventilation hole 13Ad drain port 13B oscillator 15 covering member 15A covering portion 15Aa closing portion 15B opening 16 covering member 16A covering portion 16Aa closing portion 16B opening

Claims (4)

an adsorption member that adsorbs water molecules;
a metal heating furnace in which electromagnetic waves are output by an oscillator to an interior surrounding at least a portion of the adsorption member;
a coating member made of a dielectric surrounding the adsorption member inside the heating furnace;
A playback device. 2. The regeneration device according to claim 1, wherein said covering member is formed with an opening leading to the outside of said heating furnace. 3. The reproducing apparatus according to claim 1, wherein said covering member is made of a material having a dielectric loss coefficient of 0.0005 or less. The regeneration device according to any one of claims 1 to 3, wherein the covering member includes a portion having a thickness of less than 1 mm surrounding the adsorption member inside the heating furnace.

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