JP4341924B2 - Desiccant ventilation system - Google Patents

Description

  The present invention relates to a desiccant ventilation system for keeping indoor spaces, such as automobiles, houses, offices, commercial facilities, gymnasiums, event venues, and factories, in a comfortable and hygienic air condition while suppressing the use of energy.

  In recent years, the trend of global warming has become prominent, and high-efficiency use (energy conservation activities) of fossil fuels has been promoted to reduce the amount of carbon dioxide, the main greenhouse gas, as a countermeasure.

  In particular, the number of air conditioners installed in the transport field and the consumer field (household and business) and the frequency of use are still increasing, and the amount of energy used (especially fuel such as gasoline and the amount of power used) is expanding. Therefore, improving the efficiency of air-conditioning equipment and systems for reducing the amount of usage is an urgent issue.

  For example, in an automobile, in-vehicle dehumidification by a car air conditioner in winter, inefficient driving is performed such as cooling and dehumidifying the air in the vehicle below the dew point and then heating again. In addition, in the consumer field, as a result of air-tightening of houses and office buildings to improve air conditioning efficiency, adverse effects such as sick house syndrome caused by harmful chemical substances (VOC) generated from furniture and building materials have come to occur. As countermeasures, ventilation is strengthened in houses and offices. However, enhanced ventilation leads to an increase in indoor air conditioning load due to outside air, especially latent heat load such as dehumidification and humidification, so an energy saving ventilation system is indispensable.

  The air conditioner cools the air to be treated to below the dew point, condenses and removes the moisture in the air, and then heats the air that has been cooled to prevent fogging of the automobile window glass and dehumidification in the living room. Therefore, if the dehumidifying load on the car air conditioner or indoor air conditioner (hereinafter referred to as “air conditioner”) is reduced, the air conditioner is released from the load that cools the air to a low temperature range, and the fuel efficiency is improved in the automobile. The power consumption will be improved and the economic and energy saving effects will be secured.

  In addition, since the outside air dries in the winter and dry seasons, humidification is essential for ventilation in the consumer sector. An ultrasonic humidifier or the like is used for indoor humidification, but there is a problem that not only the power consumption increases but also the indoor temperature decreases. In contrast, if the moisture contained in the air exhausted from the room to the outside is selectively separated and recovered, and this can be added to the introduction air from the outside air with minimal energy use, the humidification load is reduced, which also saves energy. An effect is obtained.

  For example, in the following Patent Document 1, a dehumidifying inlet that sucks indoor air, a dehumidifying outlet that blows air sucked from the dehumidifying inlet, a ventilation inlet that sucks indoor air, and indoor air Air is exhausted to the outside, and the air that passes through the air passage that connects the dehumidification inlet and the dehumidification outlet and absorbs moisture from the air and connects the ventilation inlet and the ventilation outlet. The exhaust air before passing through the dehumidifying element is heated in order to dehumidify the air passing through the air passage connecting the suction inlet for ventilation and the exhaust outlet for ventilation, and the dehumidifying element for dehumidifying the air passing through the passage. In addition, a dehumidification / ventilation system has been proposed that includes a heating means for drying and dehumidifies indoor air using exhaust air to the outdoors, and can switch between ventilation operation and dehumidification ventilation operation.

Further, in the following Patent Document 2, in an air conditioning system in which at least two desiccants are respectively disposed in the processing air path and the regeneration air path, the moisture in the processing air is adsorbed on the one hand and the other is regenerated by the regeneration air. An air conditioning system has been proposed in which the two desiccants are moved relative to the processing air path and the regeneration air path so that the flow of the processing air and the regeneration air to the desiccant portion can be switched.
JP 2003-294267 A JP-A-10-9633

  In the ventilation system described in Patent Document 1, in order to dry (regenerate) the dehumidifying element, it is necessary to pass air having a low relative humidity. Therefore, heat energy such as electricity or city gas for heating the passing air is used. There was a problem that it was necessary and consumed a lot of energy. Further, the air conditioning system described in Patent Document 2 has a complicated flow path configuration using a switching valve, and there is a problem in that the equipment is increased in size.

  Furthermore, as described in Patent Documents 1 and 2 described above, in many ventilation systems using a dehumidifying material, when moisture is adsorbed by the dehumidifying material, the heat of adsorption of the dehumidifying material is generated and the temperature of the passing air rises, Since the relative humidity is lowered, there is a problem that the moisture adsorption effect of the dehumidifying material is lowered. On the other hand, when the dehumidifying material is regenerated, the dehumidifying material absorbs heat due to the moisture desorbing action, the temperature of the passing air decreases, and the relative humidity increases, so that the moisture desorbing efficiency of the dehumidifying material decreases.

  In order to solve such problems, the conventional desiccant system requires a separate device for heat removal and heating of the dehumidifier, which increases energy consumption and makes the system more complex and larger. There was a problem of cost increase due to the conversion.

  In recent years, total heat exchangers that utilize the characteristics of giving heat and moisture from the air passing through one surface to the air passing through the other surface via a water vapor permeable membrane are commercially available, contributing to energy saving. . However, during heat exchange, the problem of reflux to the supply side of VOC, odor molecules, viruses, etc. contained in the exhaust gas has been pointed out from the characteristic of moisture exchange as latent heat, which has a hygiene problem.

  In this way, we use a great deal of energy for humidity conditioning and air conditioning, and if we can build hygienic dehumidification, humidification means and heat exchange means to improve this, we will be more comfortable, including global warming problems. A safe and comfortable living environment can be secured at low cost.

  Therefore, the main problem of the present invention is to provide a desiccant ventilation system that can efficiently absorb and desorb moisture from the dehumidifying material, improve energy efficiency, and reduce the manufacturing cost by a simple structure. It is in.

In order to solve the above-mentioned problem, as the present invention according to claim 1, one side duct and the other side duct are independently formed in order to perform the supply of outside air and the exhaust of room air in parallel, A casing having a predetermined length to which the one-side duct and the other-side duct are respectively connected is divided into layers by a heat-exchangeable heat transfer sheet having no air permeability, and the first flow path and the second flow path are alternately arranged. A plurality of layered flow paths are formed, and among the partition surfaces partitioned into the first flow path and the second flow path, portions near the inlet and outlet of the flow paths are both surfaces of the heat transfer sheet. The area where the dehumidifying material is not applied, impregnated or adhered is the other area, and the other part is the area where the dehumidifying material is applied, impregnated or adhered to both sides of the heat transfer sheet, and is in the direction parallel to the duct and the circulating air It has a long side in the flow direction. And place the moisture adsorption device which is supported by the center axis around which parallel to the duct,
In the moisture adsorption / desorption device, the first flow path and the second flow path are made to flow in the flow paths facing each other or in parallel to each other. In addition to the flow path configuration, the circulating air is dehumidified on one side of the heat transfer sheet, and at the same time, the circulating air is humidified on the other side of the heat transfer sheet. Adsorption heat accompanying moisture adsorption of the disposed dehumidifying material is configured to promote the moisture desorption effect of the dehumidifying material by thermally conducting the heat transfer sheet and heating the dehumidifying material on the other surface side,
A state where the first flow path is circulated as an air supply flow path and the second flow path is circulated as an exhaust flow path by rotating the moisture adsorption / desorption device approximately 180 degrees around the central axis at predetermined time intervals. And a desiccant ventilation system characterized in that the second flow path can be circulated as an air supply flow path and the first flow path can be circulated as an exhaust flow path.

  In the first aspect of the present invention, a large number of flow paths composed of the first flow path and the second flow path are alternately divided into layers by a large number of heat-exchangeable heat transfer sheets having no air permeability, A dehumidifying material is applied, impregnated, or adhered to at least a part of each partition surface partitioned into the first flow path and the second flow path, or a dehumidifying material is applied to at least a part of the first flow path and the second flow path. As a result, the heat of adsorption accompanying moisture adsorption of the dehumidifying material in the one-side channel is thermally conducted to the dehumidifying material in the other-side channel via the heat transfer sheet in contact with the dehumidifying material. As a result, the dehumidifying material in the one side channel is cooled to promote moisture adsorption, and the dehumidifying material in the other side channel is heated to promote drying (regeneration). Adsorption and desorption can be performed efficiently, and energy efficiency can be improved.

  Furthermore, since the flow path is switched by rotating the moisture adsorption / desorption device approximately 180 degrees around the axis at predetermined intervals, the desiccant ventilation system can be made compact with a simple structure. become able to.

Moreover , in the heat transfer sheet forming the first flow path and the second flow path of the moisture adsorption / desorption device, the inlet and / or the vicinity of the outlet of the flow path is constituted by a heat transfer sheet to which a dehumidifying material is not applied, impregnated or bonded. Thus, heat exchange is performed between the supply air and the exhaust gas via the heat transfer sheet in the vicinity of the inlet and / or outlet of the moisture adsorption / desorption device. Further, as described above, the other part is filled with the dehumidifying material, so that the heat of adsorption accompanying the moisture adsorption of the dehumidifying material in the one-side flow path is transferred to the other side via the heat transfer sheet in contact with the dehumidifying material. Heat is conducted to the dehumidifying material in the flow path, the dehumidifying material in the one-side flow path is cooled to promote moisture adsorption, and the dehumidifying material in the other-side flow path is heated to promote drying (regeneration). Become. This improves the energy efficiency of the desiccant ventilation system.

Furthermore , it is desirable that the moisture adsorption / desorption device has a shape having a long side in the flow direction of the circulating air. Thereby, the opportunity of contact with circulation air and a dehumidification material can be increased, the moisture absorption / desorption of a dehumidification material can be performed efficiently, and energy efficiency can be improved.

As the present invention according to claim 2, one side duct and the other side duct are independently formed in order to perform supply of outside air and exhaust of indoor air in parallel, and the one side is formed on both end surfaces or both side portions. In the casing of a predetermined length to which the side duct and the other side duct are respectively connected, a large number of layered flow paths partitioned into layers by a heat exchangeable heat transfer sheet having no air permeability are formed, Of the partition surfaces partitioned into the layered flow paths, the vicinity of the inlet and outlet of the flow path is a region where the dehumidifying material is not applied, impregnated, or bonded to both surfaces of the heat transfer sheet, and the other portions are the heat transfer. The area where the dehumidifying material is applied, impregnated or adhered to both sides of the sheet ,
The layered flow path is one of one set of one side duct and the other side of two sets of diagonal paths that connect one side ducts or connect one side duct and the other side duct. The first channel that communicates with the duct and the other channel among the two diagonal channels that communicate with each other or connect the one side duct and the other side duct. The second flow path communicating with the duct and the other side duct is alternately formed , and has a shape having a long side in a direction parallel to the duct and a flow direction of the circulating air, and a center parallel to the duct Place a moisture absorption / desorption device supported around the axis,
In the moisture adsorption / desorption device, the first flow path and the second flow path are made to flow in the flow paths facing each other or in parallel to each other. In addition to the flow path configuration, the circulating air is dehumidified on one side of the heat transfer sheet, and at the same time, the circulating air is humidified on the other side of the heat transfer sheet. Adsorption heat accompanying moisture adsorption of the disposed dehumidifying material is configured to promote the moisture desorption effect of the dehumidifying material by thermally conducting the heat transfer sheet and heating the dehumidifying material on the other surface side,
A state where the first flow path is circulated as an air supply flow path and the second flow path is circulated as an exhaust flow path by rotating the moisture adsorption / desorption device approximately 180 degrees around the central axis at predetermined time intervals. And a desiccant ventilation system characterized in that the second flow path can be circulated as an air supply flow path and the first flow path can be circulated as an exhaust flow path.

  The present invention described in claim 2 specifically shows the connection configuration and flow path configuration of the duct in the moisture adsorption / desorption device of the invention described in claim 1. That is, the duct connection configuration is such that the one-side duct and the other-side duct are respectively connected to both end surfaces of the moisture adsorption / desorption device or side portions of both end portions. In addition, the flow channel configuration may be a counter flow type or a parallel flow type in which the first flow channel and the second flow channel communicate with each other in parallel between the one side ducts or the other side ducts. A counterflow type or a parallel flow type that crosses and communicates with the side duct is used.

As the present invention according to claim 3, in order to perform the supply of outside air and the exhaust of room air in parallel, one side duct and the other side duct are formed independently, and the one side duct and the other side duct are parallel to each other. In the part disposed in the pipe, it extends over both ducts, and a dehumidifying material is applied and impregnated on both sides of the heat transfer sheet in the vicinity of the inlet and outlet of the flow path in a casing of a predetermined length to which both ducts are connected. or is a bonded non regions, other parts dehumidifying material applied to both sides of the heat transfer sheet, is a impregnated or bonded areas Rutotomoni, layered by a number of heat transfer sheet capable of having no heat exchange ventilation A large number of layered flow paths are formed, and the layered flow path connects the one side duct and the other side duct, and of the two pairs of diagonal relationships that intersect, the one side diagonal relationship With one side duct and the other The duct is in communication, the first flow path in which the one side duct and the other side duct are closed in a relationship of the other side diagonal, and the one side duct and the other side duct in communication in the relationship of the other side diagonal; A shape in which the second flow path in which the one side duct and the other side duct are closed due to the one side diagonal relationship is alternately formed, and has a long side in a direction parallel to the duct and in the flow direction of the circulating air And a water absorption / desorption device supported around a central axis parallel to the duct,
In the moisture adsorption / desorption device, the first flow path and the second flow path are made to flow in the flow paths facing each other or in parallel to each other. In addition to the flow path configuration, the circulating air is dehumidified on one side of the heat transfer sheet, and at the same time, the circulating air is humidified on the other side of the heat transfer sheet. Adsorption heat accompanying moisture adsorption of the disposed dehumidifying material is configured to promote the moisture desorption effect of the dehumidifying material by thermally conducting the heat transfer sheet and heating the dehumidifying material on the other surface side,
By rotating the moisture adsorbing / desorbing device approximately 180 degrees around the center axis at predetermined time intervals, the first flow path is used as an air supply flow path to flow from one duct to the other duct, and the second flow path Circulates from the one side duct to the other side duct as an exhaust flow path, and circulates from the one side duct to the other side duct as the air supply flow path, while the first flow path serves as the exhaust flow path. It is possible to alternately switch the state of flowing from the side duct to the other side duct, or by rotating the moisture adsorption / desorption device approximately 180 degrees around the central axis at predetermined time intervals. A state in which the air supply channel is circulated from one duct to the other side duct, the second channel is circulated from the other side duct to the one side duct, and the second channel is used as the air supply channel. Duct or Is circulated to the other side duct, desiccant ventilation system characterized in that the switchable said first flow path alternately between a state in which circulating from the other side duct to one side duct as an exhaust passage is provided.

  The third aspect of the present invention shows a specific mode of implementation of the moisture adsorption / desorption device according to the first and second aspects of the present invention, and is divided into a plurality of layers divided by a large number of heat transfer sheets. Water supply / exhaust flow channels are formed, and the air in each flow channel is circulated so as to face each other or in parallel, so to speak, a counter flow type or parallel flow type moisture adsorption / desorption device Is a desiccant ventilation system.

As a fourth aspect of the present invention, the layered flow path of the moisture adsorption / desorption device is formed by bending one or a plurality of heat transfer sheets into a corrugated plate shape having a continuous U-shaped cross section, and forming side plates and end plates. The desiccant ventilation system according to any one of claims 1 to 3 , wherein the desiccant ventilation system is provided.

In the present invention described in claim 4 , one or a plurality of heat transfer sheets are bent into a corrugated plate shape having a continuous U-shaped cross section, side plates are provided on both sides, and end plates are provided on both ends. By configuring the moisture adsorption / desorption device, the moisture adsorption / desorption device can be made compact with a simple structure, and the manufacturing cost can be reduced.

As the present invention according to claim 5 , a flat plate or a corrugated plate is used as a heat transfer sheet that divides the first flow path and the second flow path into layers, and a spacer or a wave is interposed between the upper and lower heat transfer sheets. The desiccant ventilation system according to any one of claims 1 to 4 , wherein a plate is disposed, and a dehumidifying material is applied, impregnated, or adhered to a part or the entire surface of the spacer or the corrugated plate.

As the present invention according to claim 6 , the heat transfer sheet, the spacer or the corrugated sheet is impregnated with a suspension in which a dehumidifying material formed into fine particles having a diameter of 0.1 mm or less is impregnated, and then dried and fixed. The desiccant ventilation system according to any one of claims 1 to 5 , wherein the desiccant ventilation system is a fibrous sheet of fiber, plant fiber, animal fiber, and / or chemical fiber.

According to the sixth aspect of the present invention, the heat transfer sheet, the spacer, or the corrugated sheet is composed of a fibrous sheet impregnated with the dehumidifying material, so that the dehumidifying material can efficiently absorb and desorb moisture. The heat transfer between the heat transfer sheets is efficiently performed.

According to a seventh aspect of the present invention, a microwave irradiating device for irradiating the moisture absorbing / desorbing device with microwaves in the vicinity of the moisture absorbing / desorbing device while the moisture absorbing / desorbing device is made of a non-conductive material. A desiccant ventilation system according to any one of claims 1 to 6 is provided.

In the present invention described in claim 7 , by irradiating the microwave with the microwave irradiation device, the water molecules adsorbed in the dehumidifying material and the moisture adsorption / desorption device are excited and heated, and accumulated in the moisture adsorption / desorption device. It is possible to desorb and discharge substances such as moisture, chemical substances, and odor molecules. This makes it possible to efficiently regenerate the dehumidifying material and keep the inside of the moisture absorption / desorption device hygienic.

As the present invention according to claim 8 , in the moisture adsorption / desorption device, the first flow path and / or the second flow path are provided with existing equipment such as a prime mover or power generation device such as an engine or a fuel cell, a general air conditioner, and a water heater. The desiccant ventilation system according to any one of claims 1 to 7 , further comprising introduction means for guiding heated air in a heat exchanger capable of exchanging heat with hot air or hot exhaust gas discharged from the air. .

In the present invention described in claim 8 , in the first flow path and / or the second flow path, hot exhaust discharged from a prime mover such as an engine or a fuel cell or a power generator, or a refrigerant used in a general air conditioner. It is configured to introduce air heated by heat exchange with high-temperature air such as hot exhaust gas that has passed through the condenser or hot exhaust gas that is generated in a water heater. Thereby, drying (regeneration) of the dehumidifying material is promoted, moisture desorption / desorption of the dehumidifying material can be performed efficiently, and energy efficiency can be improved.

As the present invention according to claim 9, when the moisture adsorption / desorption device is rotated to switch between the air supply flow path and the exhaust flow path, the moisture adsorption / desorption apparatus and the one side duct or the other side duct are properly A desiccant ventilation system according to any one of claims 1 to 8, further comprising: a detection mechanism that detects a simple connection position, and a control unit that controls rotation of the moisture adsorption / desorption device according to a detection result thereof.

  As described above, according to the present invention, moisture absorption / desorption of the dehumidifying material can be performed efficiently, energy efficiency can be improved, and a simple structure can reduce the size and the manufacturing cost.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First embodiment]
(Configuration of Desiccant Ventilation System 1)
The structure of the desiccant ventilation system 1 which concerns on the 1st example of this invention is explained in full detail based on FIGS. 1-3. 1 is a plan view of a desiccant ventilation system 1 according to a first embodiment of the present invention, FIG. 2 is a horizontal sectional view showing an air supply passage S, and FIG. 3 is a horizontal sectional view showing an exhaust passage E thereof.

  As shown in FIG. 2, the desiccant ventilation system 1 according to the first embodiment of the present invention is provided with one side ducts 4, 4 ′ and the other side duct 5 in order to perform supply of outside air and exhaust of indoor air in parallel. 5 'is formed independently, and in the part where these one side ducts 4, 4' and the other side ducts 5, 5 'are arranged in parallel, both ducts are straddled and both ducts are connected. A dehumidifying material 7 is applied, impregnated or adhered into the casing 6 of a predetermined length, or at least a part of the first flow path and the second flow path is filled with the dehumidifying material and has no air permeability. A large number of flow paths partitioned into layers are formed by a large number of heat transfer sheets 8, 8... That can exchange heat, and the laminar flow paths are formed on one side ducts 4, 4 ′ as shown in FIG. And the other side ducts 5, 5 'and two sets of diagonal relations that intersect The first flow path in which the one-side duct 4 and the other-side duct 5 ′ are communicated with each other on the one-side diagonal relationship, and the one-side duct 4 ′ and the other-side duct 5 are closed on the other-side diagonal relationship. (Used as the air supply flow path S in the illustrated example) and, as shown in FIG. 3, the one side duct 4 ′ and the other side duct 5 are communicated with each other in a diagonal relationship, and the one side diagonal relationship is provided. Second flow paths (used as exhaust flow paths E in the illustrated example) in which the one side duct 4 and the other side duct 5 ′ are closed are alternately formed, and around the axis of the central axis 9 parallel to the duct In other words, a counter-flow type moisture adsorption / desorption device 2 supported by the apparatus is disposed.

  And the desiccant ventilation system 1 which concerns on the 1st example of this invention rotates the said water | moisture-content adsorption / desorption apparatus 2 to the surroundings of the shaft center of the said axis | shaft about 180 degree | times for every predetermined time, A said 1st flow path is made. A state in which the air supply passage S is circulated from the one side duct 4 to the other side duct 5 ′, the second passage is circulated as the exhaust passage E from the one side duct 4 ′ to the other side duct 5, and the second flow The path is made to flow from the one side duct 4 to the other side duct 5 ′ as the air supply flow path S, and the state in which the first flow path is made to flow from the one side duct 4 ′ to the other side duct 5 alternately. Switchable.

  In the above example, the supply air and the exhaust are circulated so as to face each other. However, a parallel flow type in which the supply air and the exhaust are circulated in parallel may be used. In this case, the first flow path is used as the air supply flow path S to flow from the one side duct 4 to the other side duct 5 ′, and the second flow path is used as the exhaust flow path E from the other side duct 5 to the one side duct 4. And the second flow path as the supply flow path S from the one side duct 4 to the other side duct 5 ′, and the first flow path as the exhaust flow path E from the other side duct 5 to the one side The state of circulation to the duct 4 ′ can be switched alternately.

  In the above example, the one-side duct and the other-side duct are communicated with each other so that the supply air and the exhaust gas intersect with each other. However, the one-side ducts 4, 4 ′ or the other-side ducts 5, 5 ′ are connected. You may make it communicate and distribute in parallel.

  As shown in FIG. 4, the moisture adsorption / desorption device 2 includes a plurality of heat transfer sheets 8, 8... The moisture absorption / desorption device 2 is divided and formed, and the flow path is switched by rotating the moisture adsorption / desorption device 2 about the axis of the shaft 9 at predetermined intervals, thereby absorbing moisture of the built-in dehumidifying material 7. And playback are alternated. In addition, you may make it provide the header part 13 by which the supply flow path S and the exhaust flow path E were divided by the partition plate 12 in the inlet side and outlet side of the said moisture adsorption / desorption apparatus 2. FIG. By providing the header portion 13 in this way, mixing and leakage of the circulating air in each flow path can be prevented, and the connection work of the connected ducts 4, 4 ', 5 and 5' is facilitated.

  As described above, the moisture adsorbing / desorbing device 2 is formed such that a large number of flow paths are divided into layers by a large number of heat transfer sheets 8, 8. . Here, as shown in FIG. 5, the layered flow path of the moisture adsorption / desorption device is formed by bending one or a plurality of heat transfer sheets 8 into a corrugated plate shape having a continuous U-shaped cross section, and on both side surfaces. You may make it comprise the side plates 6a and 6a by arrange | positioning the end plates 6b and 6b at both ends. When comprised in this way, manufacture of the moisture adsorption / desorption apparatus 2 becomes easy, and since it becomes possible to reduce manufacturing cost, it is preferable. In the first embodiment, as shown in FIG. 5, predetermined openings are provided in the end plates 6a and 6a so that air can flow through the connecting duct and the predetermined flow path.

  By the way, the one side ducts 4, 4 ′ and the other side ducts 5, 5 ′ and the moisture adsorption / desorption device 2 are slidably held by an airtight holding member (not shown) such as an air packing. Yes.

  As the dehumidifying material 7, conventionally known silica gel, zeolite, polymer dehumidifying material and the like can be used. In particular, in the present invention, among these various dehumidifying materials, in the 35 ° C. isothermal adsorption diagram, the maximum moisture absorption amount in the humidity region where the relative humidity is about 60% or more is the maximum moisture absorption amount in the humidity region where the relative humidity is about 30% or less. It is desirable to make it twice or more. As the dehumidifying material having such physical property values, a polymer dehumidifying material containing a specific amount of a potassium salt-type carboxyl group and composed of an organic polymer hygroscopic polymer having a crosslinked structure, for example, What is indicated by 2005-21840 gazette can be used. This makes it possible to sufficiently dehumidify and humidify the circulating air, and to reduce the size of the moisture absorption / desorption device 2.

  As the heat transfer sheet 8, a flat plate or a corrugated plate can be used. The heat transfer sheet 8 is coated, impregnated or bonded with a dehumidifying material 7 such as silica gel on both surfaces. Specifically, the dehumidifying material is applied after being mixed with a binder, or a dehumidifying material having a diameter of 0.1 mm or less on a fibrous sheet such as glass fiber, plant fiber, animal fiber and / or chemical fiber. After impregnating the suspended suspension, it is desirable to fix by drying and fixing, or by adhering the powdered dehumidifying material in layers with an adhesive or the like.

  Further, instead of a configuration in which a dehumidifying agent is applied to, impregnated or adhered to the heat transfer sheet 8, a dehumidifying material such as silica gel in a granular form, and a filler formed, for example, in a hollow shape in order to ensure air permeability The mixture is filled so that each flow path adjacent to the position where the heat transfer sheet 8 is disposed is in contact with the heat transfer sheet, and the air inlet / outlet thereof has an opening smaller than the outer dimensions of the dehumidifying material and the filling material. It may be arranged by being blocked by a conductive film or net.

  In this way, the dehumidifying material disposed on both surfaces of the heat transfer sheet 8 is dehumidified by the dehumidifying material disposed on the one side surface and simultaneously with the dehumidifying material disposed on the other side surface. Air is humidified. The moisture absorption heat of the dehumidifying material disposed on one side surface of the heat transfer sheet 8 (temperature increase due to moisture adsorption of the dehumidifying material) conducts the heat transfer sheet 8 and heats the dehumidifying material on the other side surface. The moisture desorption effect of the dehumidifying material is promoted.

  Further, as shown in FIG. 6, a spacer 9a or a corrugated sheet 9b can be disposed between the heat transfer sheets 8 and 8, and a part or the entire surface of the spacer 9a or corrugated sheet 9b is dehumidified. The material may be applied, impregnated or adhered. In this way, by forming the heat transfer sheet 8 on the corrugated sheet or by disposing the spacer 9a or the corrugated sheet 9b between the heat transfer sheets, the contact area between the circulating air and the dehumidifying material is increased and the dehumidifying effect is obtained. In addition to being able to improve, there are effects of rectifying circulating air and increasing the strength of each flow path.

  As described above, the heat transfer sheet 8 efficiently conducts the heat of adsorption of the dehumidifying material disposed on one side surface to the dehumidifying material on the other side surface, so that the metal material or non-metallic material of a steel material or non-steel material is used. Among various industrial materials, those having excellent thermal conductivity, preferably materials having a thermal conductivity of 170 kcal / mh ° C. or higher are used. Moreover, in order to prevent the flowing air flowing through one flow path from flowing into the other flow path, the heat transfer sheet 8 uses a material that does not transmit air.

  Furthermore, the heat transfer sheet 8, the spacer 9a, or the corrugated plate 9b can be made of resin, paper, non-woven fabric, or cloth. By comprising in this way, manufacture of the moisture adsorption / desorption apparatus 2 becomes easy, and it becomes possible to reduce manufacturing cost.

  In the present invention, the moisture adsorption / desorption device 2 is made of a non-conductive material, and a microwave irradiation device (not shown) for irradiating the dehumidifying material 7 with microwaves in the vicinity of the moisture adsorption / desorption device 2. ) Is desirable. By irradiating microwaves with the microwave irradiation device, the water molecules adsorbed in the dehumidifying material 7 and the moisture adsorption / desorption device 2 are excited and heated, and moisture and chemical substances accumulated in the moisture adsorption / desorption device 2 are heated. Substances such as odor molecules can be desorbed and discharged. This makes it possible to efficiently regenerate the dehumidifying material 7 and to keep the moisture absorption / desorption device 2 hygienic.

  The safety ensuring means at the time of microwave irradiation by the microwave irradiation apparatus will be described. The main components of the moisture adsorption / desorption device 2 and the microwave irradiation device incorporating the dehumidifying material 7 are arranged in a casing, and a metal punching board or a conductive material is provided in an air duct serving as an outer surface or opening of the casing. By arranging the net-like sheet formed in (1), it is possible to prevent external leakage of microwaves. Furthermore, by using a non-conductive material or a low dielectric constant material as a constituent material or a container material of the moisture adsorption / desorption device 2 including the dehumidifying material 7, discharge at the time of microwave irradiation by the microwave irradiation device In addition, problems such as loss of microwaves due to generation of eddy currents and concentration of microwaves on the dielectric can be prevented, and moisture, chemical substances or moisture from the dehumidifying material 7 and the moisture adsorption / desorption device 2 due to microwave irradiation can be prevented. Odor molecules can be desorbed efficiently.

  As shown in FIGS. 1 to 4, the moisture adsorption / desorption device 2 preferably has a shape having long sides in the flow direction of the circulating air. By comprising in this way, the opportunity of contact with circulation air and the dehumidification material 7 can be increased, the moisture absorption / desorption of the dehumidification material 7 can be performed efficiently, and the heat conduction effect of the heat transfer sheet 8 makes it possible for the circulation air to flow. Temperature adjustment is also possible, and the energy efficiency of the desiccant ventilation system 1 can be improved.

  As shown in FIGS. 2 and 3, an air supply fan 10 and an exhaust fan 11 for supplying and exhausting air are disposed in each flow path, respectively. When the mode is switched, the air supply fan 10 and the exhaust fan 11 disposed in each flow path are stopped when the switching of the moisture adsorption / desorption device 2 is started, and when the switching of the moisture adsorption / desorption device 2 is completed. It is desirable to restart.

  Further, when the moisture absorption / desorption device 2 is switched, it is detected whether or not the casing 6 of the moisture absorption / desorption device 2 is in a position where it is properly connected to the ducts 4, 4 ′, 5, 5 ′ of each flow path. For example, it is preferable to include a detector (not shown) such as a proximity switch or a limit switch, and a control means for controlling the rotation angle of the rotating shaft 9 based on the detection result. Further, at least one place of the moisture absorption / desorption device 2 and the air ducts 4, 4 ′, 5 and 5 ′ connected thereto is provided with a fixing means (not shown) for fixing both. Is desirable.

(Operating state of desiccant ventilation system 1)
Next, the operation state of the desiccant ventilation system 1 will be described in detail below.
In the desiccant ventilation system 1 according to the present invention, the supply of outside air and the exhaust of room air are performed in parallel by forming ducts for supplying or exhausting air independently.

  In the case of summer operation, in the air supply passage S, the hot and humid outside air is stratified by the heat transfer sheets 8, 8... In the moisture adsorption / desorption device 2 through the duct 4 on one side by the air supply fan 10. After being distributed and guided to a large number of partitioned air supply passages S, S... In contact with the dehumidifying material 7 incorporated in the air supply passage S, the air flows while being dehumidified, and then passes through the duct 5 ′ on the other side. Supplied indoors.

  On the other hand, in the exhaust passage E, the indoor air is sent to the moisture adsorption / desorption device 2 through the one side duct 4 ′ by the exhaust fan 11. The circulating air introduced into the exhaust passage E of the moisture adsorption / desorption device 2 is dried (regenerated) from the built-in dehumidifying material 7 and then discharged to the outside through the other duct 5.

  Here, the heat of adsorption accompanying the moisture adsorption of the dehumidifying material 7 in the air supply channel S of the moisture adsorption / desorption device 2 is transferred to the dehumidifying material 7 in the exhaust channel E via the heat transfer sheet 8 in contact with the dehumidifying material 7. Heat conduction. As a result, the dehumidifying material 7 in the air supply passage S is cooled to promote moisture adsorption, and the dehumidifying material 7 in the exhaust passage E is heated to promote drying (regeneration).

  Along with the operation by the above-described flow path configuration, a large amount of moisture is adsorbed to the dehumidifying material 7 disposed in the air supply flow path S. Therefore, it is possible to regenerate the dehumidifying material 7 disposed in the supply air flow path S by switching the flow paths to each other at predetermined time intervals. As described above, the flow path is switched by rotating the moisture adsorption / desorption device 2 about 180 degrees around the axis of the shaft 9. By switching the flow path, the first flow path that has been used as the supply flow path S until now becomes the exhaust flow path E, and the second flow path that has been used as the exhaust flow path until now is the supply flow path. S. And the dehumidification material 7 which performed the dehumidification of the circulation air (supply air) in the supply air flow path S is reproduced | regenerated by desorbing | moisture_content with circulation air (exhaust).

  Next, the amount of moisture that the dehumidifying material 7 absorbs and desorbs in the moisture adsorption / desorption device 2 will be discussed based on FIGS. In general, in the dehumidifying process where the outside air (point A in Fig. 7: temperature 30 ° C, relative humidity 65% RH, water content 18g / kg) is dehumidified to room air with relative humidity 40% RH by the desiccant of the desiccant device. As shown in FIG. 7, the heat insulation changes from point A to point B, and the amount of moisture to be dehumidified is about 3 g / kg (= 18 g / kg-15 g / kg). On the other hand, in the case of the moisture adsorption / desorption device 2 according to the present invention, the adsorption heat accompanying the moisture adsorption of the dehumidifying material 7 is thermally conducted through the heat transfer sheet 8 as described above, and therefore is shown in the figure under ideal conditions. As described above, the dehumidifying process from point A to point D is performed, and the amount of water to be dehumidified is about 10 g / kg (= 18 g / kg-8 g / kg), which can be significantly increased as compared with the above-described general desiccant apparatus.

  On the other hand, when the dehumidifying material is regenerated by room air (point D in FIG. 8: temperature 24 ° C., relative humidity 40% RH, water content 8 g / kg), in a general desiccant device, as shown in FIG. The adiabatic change from point D to point F, and the amount of moisture to be desorbed is about 1 g / kg (= 9 g / kg-8 g / kg). On the other hand, in the case of the moisture adsorption / desorption device 2 according to the present invention, the moisture desorption of the dehumidifying material 7 is promoted by the heat of adsorption conducted through the heat transfer sheet 8 as described above. As shown, the regeneration process is from point D to point A, and the amount of water to be desorbed is about 10 g / kg (= 18 g / kg-8 g / kg), which can be significantly increased from the above-mentioned general desiccant device. At the same time, the amount of moisture adsorbed by the dehumidifying material 7 and the amount of moisture desorbed can be made substantially equal.

  In the moisture adsorption / desorption device 2 according to the present invention, the moisture amount of adsorption / desorption by the dehumidifying material is the amount of the dehumidifying material 7 applied, impregnated or adhered to the heat transfer sheet 8 or the dehumidifying material filled in each flow path. 7 can be easily adjusted by forming the heat transfer sheet 8 in a corrugated shape or by arranging the spacer 9a or the corrugated plate 9b.

  In the case of winter operation, the flow path configuration is the same as that in the case of summer operation described above, but is different in terms of temperature and humidity transfer. Specifically, in the air supply passage S, the low-temperature and low-humidity outside air is stratified by a large number of heat transfer sheets 8 in the moisture adsorption / desorption device 2 through the duct 4 on one side by the air supply fan 10. After being distributed and guided to a number of partitioned air supply passages S, S... And in contact with the dehumidifying material 7 built in the air supply passage S, the air flows while being humidified (the dehumidifying material 7 is regenerated), and then the other side. It is supplied into the room through the duct 5 '.

  On the other hand, in the exhaust passage E, the indoor air is sent to the moisture adsorption / desorption device 2 through the one side duct 4 ′ by the exhaust fan 11. The circulating air introduced into the exhaust passage E of the moisture adsorption / desorption device 2 is discharged to the outside through the other duct 5 after moisture is adsorbed by the built-in dehumidifying material 7.

  Here, as in the case of the summer operation described above, the heat of adsorption accompanying the moisture adsorption of the dehumidifying material 7 in the exhaust flow path E of the moisture adsorption / desorption device 2 passes through the heat transfer sheet 8 in contact with the dehumidifying material 7. The heat is conducted to the dehumidifying material 7 in the air supply channel S. As a result, the dehumidifying material 7 in the exhaust passage E is cooled to promote moisture adsorption, and the dehumidifying material 7 in the air supply passage S is heated to promote desorption (regeneration) of the adsorbed moisture. .

[Second embodiment]
The structure of the desiccant ventilation system 1 which concerns on the 2nd example of this invention is explained in full detail based on FIGS. 9-11. 9 is a plan view of the desiccant ventilation system 1 according to the second embodiment of the present invention, FIG. 10 is a horizontal sectional view showing the air supply passage S, and FIG. 11 is a horizontal sectional view showing the exhaust passage E.
The desiccant ventilation system 1 according to the second embodiment of the present invention is different from the desiccant ventilation system 1 according to the first embodiment in the configuration of the moisture adsorption / desorption device. Specifically, the desiccant ventilation system 1 according to the second embodiment of the present invention, as shown in FIG. 10, performs the supply of the outside air and the exhaust of the room air in parallel to perform the one-side ducts 4, 4 ′. And the other side ducts 5 and 5 'are formed independently, and the casing 6 having a predetermined length in which the one side ducts 4 and 4' and the other side ducts 5 and 5 'are respectively connected to the side portions of both ends. Inside, a large number of flow paths partitioned into layers by heat-exchangeable heat transfer sheets 8, 8... That do not have air permeability are formed, and at least a part of each partition surface partitioned into the layered flow paths The dehumidifying material 7 is applied, impregnated, or adhered to at least a part of the laminar flow path, and the dehumidifying material is filled in the first laminar flow path. The flow path and the second flow path communicating with the other side ducts are alternately formed. It is arranged water adsorption device 2 supported about the central axis of the central axis 9 parallel to the said duct.

  The desiccant ventilation system 1 according to the second embodiment of the present invention rotates the moisture adsorption / desorption device 2 about 180 degrees around the axis of the central shaft 9 at predetermined time intervals, thereby Is circulated as an air supply flow path S, the second flow path is circulated as an exhaust flow path E, the second flow path is circulated as an air supply flow path S, and the first flow path is used as an exhaust flow path E. It is possible to alternately switch between the state of distribution.

  More specifically, as shown in FIG. 9, the casing 6 rotatably supported by the central shaft 9 is fixed to the outer cylinder 15 so as to be rotatable and airtightly held by the fixing plates 14, 14. It is supported by. As shown in FIG. 12, the outer cylinder 15 is preferably provided with a header portion 16 at a connection position between the one-side ducts 4, 4 ′ and the other-side ducts 5, 5 ′.

  Next, the structure of the heat transfer sheet in the second embodiment will be described. As shown in FIG. 10 and FIG. 11, in the heat transfer sheet forming the first flow path and the second flow path of the moisture adsorption / desorption device 2 according to the second embodiment, in the vicinity of the flow path inlet and / or outlet. The part is a heat transfer sheet 17 to which the dehumidifying material 7 is not applied, impregnated or adhered, and the other part is the heat transfer sheet 8 to which the dehumidifying material 7 is applied, impregnated or adhered. And the heat-transfer sheet | seat comprised in this way has divided the 1st flow path and the 2nd flow path by laminating | stacking many, as FIG. 13 (A) shows. More specifically, as shown in FIG. 13B, a side plate 18 is erected at one end of the heat transfer sheet, and a side plate 19 having notches 19a and 19a is erected at the other end. As shown in FIG. 2C, the side plate 19 provided with the notches 19a and 19a is erected at one end of the heat transfer sheet and the side plate 18 is provided at the other end. Were stacked in the next stage, and after laminating many of them, end plates 6c and 6c were disposed at both ends, and a top plate 6d was disposed at the top, thereby being partitioned into layers by the heat transfer sheet. It can be set as the moisture adsorption / desorption apparatus 2 in which many flow paths were formed.

  As yet another embodiment, as shown in FIG. 14, one or a plurality of heat transfer sheets composed of heat transfer sheets 8, 17, and 17 are bent into a corrugated plate shape having a continuous U-shaped cross section, By disposing the plates 6e, 6e and the side plates 6f, 6g, 6h, the moisture adsorption / desorption device 2 can be formed. The side plates 6f, 6g, and 6h are provided with spaced portions so that closed portions (hatched portions in FIG. 14) that turn back the heat transfer sheet and openings to the respective channels are alternately formed. It becomes like this. Thereby, manufacture of the moisture absorption / desorption device 2 can be further facilitated.

  As described above, the heat transfer sheet 17 to which the dehumidifying material 7 is not applied, impregnated, or bonded is used in the vicinity of the inlet and / or outlet of the flow path, and the heat transfer sheet in which the dehumidifying material 7 is applied, impregnated, or bonded to the other parts. By setting it to 8, heat exchange is performed between the supply air and the exhaust gas via the heat transfer sheet 17 in the vicinity of the inlet and / or outlet of the moisture adsorption / desorption device 2. Further, as described above, the other part is filled with the dehumidifying material, so that the heat of adsorption accompanying the moisture adsorption of the dehumidifying material in the one-side flow path is transferred to the other side via the heat transfer sheet in contact with the dehumidifying material. Heat is conducted to the dehumidifying material in the flow path, the dehumidifying material in the one-side flow path is cooled to promote moisture adsorption, and the dehumidifying material in the other-side flow path is heated to promote drying (regeneration). Become. Thereby, the energy efficiency of the desiccant ventilation system 1 improves.

  Specifically, the operation state of the second embodiment will be described based on FIG. 15 and FIG. 16, taking the case of summer operation as an example. In the air supply passage S, outside air (point A: 30 ° C., 65% RH) is distributed and guided to a number of air supply passages S, S... Partitioned in layers by the heat transfer sheet, and flows into a region composed of the heat transfer sheet 17 where the dehumidifying material 7 is not applied, impregnated or bonded. In this region, heat exchange is performed between the exhaust flowing through the adjacent exhaust flow path E via the heat transfer sheet 17, and the air flowing through the air supply flow path S is cooled from about 30 ° C. to about 29 ° C. (Point A → Point B in FIG. 15). Next, the dehumidifying material 7 flows into the region composed of the heat transfer sheet 8 coated, impregnated or adhered, and the dehumidification of the circulating air and the heat transfer of the heat generated in the dehumidifying material 7 due to the dehumidification are described above. This is performed by the heat sheet 8 (point B → point C in FIG. 15). Thereafter, the dehumidifying material 7 flows into a region composed of the heat transfer sheet 17 that is not applied, impregnated or adhered, and heat is generated between the dehumidifying material 7 and the exhaust flowing through the exhaust passage E including heat generated by moisture adsorption of the dehumidifying material 7. Exchange is performed, and it is cooled to about 26 ° C. and supplied indoors.

  On the other hand, in the exhaust flow path E, room air (point E: 24 ° C., 40% RH) exchanges heat with the air supply flow path S in a region composed of the heat transfer sheet 17 to which the dehumidifying material 7 is not applied, impregnated, or bonded. Is performed and heated (point E → point F in FIG. 16), whereby the dehumidifying material 7 is efficiently regenerated in the region of the heat transfer sheet 8 to which the dehumidifying material 7 is applied, impregnated or adhered. (FIG. 16 Point F → Point G). Thereafter, heat exchange with the air supply flow path S is performed in a region composed of the heat transfer sheet 17 to which the dehumidifying material 7 is not applied, impregnated, or bonded, and is heated (point G → point H in FIG. 16) and released to the outside.

  15 and 16 by performing heat exchange of the circulating air flowing through the air supply flow path S and the exhaust flow path E in the region composed of the heat transfer sheet 17 to which the dehumidifying material 7 is not applied, impregnated, or bonded. As shown in FIG. 4, the amount of moisture absorbed and desorbed by the dehumidifying material 7 is equal to the adsorption amount ΔS when acting as the air supply channel S and the desorption amount ΔE when acting as the exhaust channel E (approximately 6 g / kg), and the energy efficiency of the desiccant ventilation system 1 can be improved.

  Furthermore, the means for improving the energy efficiency of the desiccant ventilation system 1 is demonstrated. As described above, in the desiccant ventilation system 1 according to the present invention, the circulation air in the supply air passage S is dehumidified under the condition that the outside air contains a relatively large amount of moisture compared to the room air (summer operation conditions). In addition, the circulation air in the exhaust passage E dries (regenerates) the dehumidifying material 7 and is supplied under conditions where the room air contains a relatively large amount of moisture compared to the outside air (in winter operation conditions). The circulating air in the air flow path S dries (regenerates) the dehumidifying material 7, and the circulating air in the exhaust flow path E is operated to be dehumidified by the dehumidifying material 7. In such a flow path configuration, in this embodiment, as shown in FIG. 17, a flow path for drying (regenerating) the dehumidifying material 7 and before passing through the dehumidifying material 7, Provide introduction means for guiding heated air in a heat exchanger capable of exchanging heat with hot air or hot exhaust discharged from existing equipment 20, such as a prime mover such as a fuel cell or a power generator, a general air conditioner, or a water heater. Can do. Specifically, as shown in FIG. 17, ducts 21 and 21a for introducing outside air are connected before introduction into the dehumidifying material 7 of the exhaust passage E during summer operation (illustrated example). During the winter operation, ducts 21 and 21b for introducing outside air are connected to the dehumidifying material 7 in the air supply channel S, and heat exchange with the hot exhaust from the existing equipment 20 is possible in the middle of the duct 21. A heat exchanger 22 is provided. The outside air heated by the hot exhaust from the existing equipment 20 in this heat exchanger 22 is supplied to the moisture adsorption / desorption device 2 to dissipate a large amount of moisture adsorbed on the dehumidifying material 7, thereby making the dehumidifying material 7 efficient. Dry (regenerate) well. Here, the amount of air supplied from the duct 21 to the moisture adsorption / desorption device 2 is the amount of air that normally flows through the moisture adsorption / desorption device 2 in order to efficiently dry (regenerate) the dehumidifying material 7 (during summer operation). Is preferably the amount of indoor air exhausted through the exhaust passage E, or the amount of outside air supplied through the air supply passage S during winter operation. The hot exhaust from the existing equipment 20 is generated by a hot exhaust discharged from a prime mover such as an engine or a fuel cell or a power generator, a hot exhaust passed through a refrigerant condenser used in a general air conditioner, or a water heater, for example. In addition to this, it is possible to use hot exhaust from various existing facilities 20 that discharge hot air. Note that the switching of the flow path between the summer operation and the winter operation can be performed by adjusting the switching valve 23 provided at the branch point of the ducts 21a and 21b.

With the configuration as described above, the desiccant ventilation system 1 according to the second embodiment can make the moisture adsorption / desorption device compact with a simple structure and can reduce the manufacturing cost. Become.
[Other examples]
(1) In the first embodiment, the heat transfer sheet of the moisture adsorption / desorption device 2 is composed of the heat transfer sheet 8 to which the dehumidifying material 7 is applied, impregnated, or bonded, but is shown in the second embodiment. As described above, the vicinity of the inlet and / or outlet of the flow path is a region composed of the heat transfer sheet 17 to which the dehumidifying material 7 is not applied, impregnated or adhered, and the other part is applied, impregnated or adhered to the dehumidifying material 7. It is good also as a field which consists of heat transfer sheets 8.
(2) In the second embodiment, the heat transfer sheet of the moisture adsorption / desorption device 2 is a region composed of the heat transfer sheet 17 where the dehumidifying material 7 is not applied, impregnated or bonded in the vicinity of the inlet and / or outlet of the flow path. In addition, the other part is an area composed of the heat transfer sheet 8 to which the dehumidifying material 7 is applied, impregnated, or bonded. However, as shown in the first embodiment, the dehumidifying material 7 is applied, impregnated, or bonded as a whole. It is good also as what consists of the heat-transfer sheet | seat 8 made.
(3) In the second embodiment, the one side ducts 4, 4 ′ or the other side ducts 5, 5 ′ are circulated in parallel, but the one side duct and the other side duct are communicated, You may distribute | circulate so that supply air and exhaust may cross.
(4) In the second embodiment, the existing equipment 20 such as a prime mover or power generator such as an engine or a fuel cell, a general air conditioner, or a water heater is provided in the first flow path and / or the second flow path of the moisture adsorption / desorption device 2. Introducing means for guiding the heated air in the heat exchanger 22 capable of exchanging heat with hot air or hot exhaust discharged from the air is provided, but this means can also be provided in the first embodiment.

1 is a plan view of a desiccant ventilation system 1 according to a first embodiment of the present invention. 3 is a horizontal sectional view showing the air supply flow path S. FIG. 3 is a horizontal sectional view showing the exhaust flow path E. FIG. It is the perspective view of the (A) moisture absorption / desorption device 2 which concerns on the 1st example of this invention, (B) The enlarged view of the header part 13. FIG. It is a perspective view (1) which shows the division system of the flow path of the moisture adsorption / desorption apparatus 2 which concerns on the 1st form example of this invention. FIG. 5 is an arrangement state diagram of (A) spacer (B) corrugated plates arranged between heat transfer sheets. It is an air line figure which shows the state change of the air supply which passes the moisture absorption / desorption apparatus 2 at the time of the summer driving | operation which concerns on the 1st form example of this invention. It is an air line figure which shows the state change of the exhaust_gas | exhaustion which passes the moisture adsorption / desorption apparatus 2 at the time of the summer driving | operation which concerns on the 1st example of this invention. It is a top view of the desiccant ventilation system 1 which concerns on the 2nd form example of this invention. 3 is a horizontal sectional view showing the air supply flow path S. FIG. 3 is a horizontal sectional view showing the exhaust flow path E. FIG. It is a perspective view of the moisture adsorption / desorption apparatus 2 which concerns on the 2nd form example of this invention. It is a perspective view (1) which shows the division system of the flow path of the moisture adsorption / desorption apparatus 2 which concerns on the 2nd form example of this invention. It is a perspective view (2) which shows the division system of the flow path of the moisture adsorption / desorption apparatus 2 which concerns on the 2nd form example of this invention. It is an air line figure which shows the state change of the air supply which passes the moisture absorption / desorption apparatus 2 at the time of the summer driving | operation which concerns on the 2nd example of this invention. It is an air line figure which shows the state change of the exhaust_gas | exhaustion which passes the moisture adsorption / desorption apparatus 2 at the time of the summer driving | operation which concerns on the 2nd form example of this invention. It is a top view of the desiccant ventilation system 1 which concerns on the 2nd form example of this invention.

DESCRIPTION OF SYMBOLS 1 ... Desiccant ventilation system, 2 ... Moisture absorption / desorption device, 4 * 4 '... Air supply duct, 5 * 5' ... Exhaust duct, 6 ... Casing, 7 ... Dehumidification material, 8 ... Heat-transfer sheet, 9 ... Shaft, 10 ... Air supply fan, 11 ... Exhaust fan

Claims (9)

A predetermined length in which one side duct and the other side duct are independently formed to supply outside air and exhaust indoor air, and the one side duct and the other side duct are respectively connected to both ends. In the casing, a plurality of layered flow paths are formed by alternately forming a first flow path and a second flow path, and are divided into layers by a heat exchangeable heat transfer sheet having no air permeability. Of the partition surfaces partitioned into the first flow channel and the second flow channel, the vicinity of the inlet and outlet of the flow channel is a region where the dehumidifying material is not applied, impregnated, or bonded to both surfaces of the heat transfer sheet. The portion is a region where a dehumidifying material is applied, impregnated, or adhered to both surfaces of the heat transfer sheet , and has a shape having a long side in a direction parallel to the duct and in a flow direction of the circulating air, and the duct Supported around parallel central axes The minute adsorption device is provided,
In the moisture adsorption / desorption device, the first flow path and the second flow path are made to flow in the flow paths facing each other or in parallel to each other. In addition to the flow path configuration, the circulating air is dehumidified on one side of the heat transfer sheet, and at the same time, the circulating air is humidified on the other side of the heat transfer sheet. Adsorption heat accompanying moisture adsorption of the disposed dehumidifying material is configured to promote the moisture desorption effect of the dehumidifying material by thermally conducting the heat transfer sheet and heating the dehumidifying material on the other surface side,
A state where the first flow path is circulated as an air supply flow path and the second flow path is circulated as an exhaust flow path by rotating the moisture adsorption / desorption device approximately 180 degrees around the central axis at predetermined time intervals. And a desiccant ventilation system characterized in that the second flow path can be circulated as an air supply flow path and the first flow path can be circulated as an exhaust flow path. One side duct and the other side duct are formed independently for supplying outside air and exhausting indoor air, and the one side duct and the other side duct are respectively provided at both end faces or side portions of both ends. A plurality of layered flow paths partitioned into layers by a heat-exchangeable heat transfer sheet having no air permeability are formed in the connected casings of a predetermined length, and each of the partitions partitioned into the layered flow paths is formed. Of the partition surface, the vicinity of the inlet and outlet of the flow path is a region where the dehumidifying material is not applied, impregnated or adhered to both surfaces of the heat transfer sheet, and the other portions are applied with the dehumidifying material on both surfaces of the heat transfer sheet, An impregnated or bonded area ,
The layered flow path is one of one set of one side duct and the other side of two sets of diagonal paths that connect one side ducts or connect one side duct and the other side duct. The first channel that communicates with the duct and the other channel among the two diagonal channels that communicate with each other or connect the one side duct and the other side duct. The second flow path communicating with the duct and the other side duct is alternately formed , and has a shape having a long side in a direction parallel to the duct and a flow direction of the circulating air, and a center parallel to the duct Place a moisture absorption / desorption device supported around the axis,
In the moisture adsorption / desorption device, the first flow path and the second flow path are made to flow in the flow paths facing each other or in parallel to each other. In addition to the flow path configuration, the circulating air is dehumidified on one side of the heat transfer sheet, and at the same time, the circulating air is humidified on the other side of the heat transfer sheet. Adsorption heat accompanying moisture adsorption of the disposed dehumidifying material is configured to promote the moisture desorption effect of the dehumidifying material by thermally conducting the heat transfer sheet and heating the dehumidifying material on the other surface side,
A state where the first flow path is circulated as an air supply flow path and the second flow path is circulated as an exhaust flow path by rotating the moisture adsorption / desorption device approximately 180 degrees around the central axis at predetermined time intervals. And a desiccant ventilation system characterized in that the second flow path can be circulated as an air supply flow path and the first flow path can be circulated as an exhaust flow path. One side duct and the other side duct are formed independently for supplying outside air and exhausting indoor air at the same time. In the casing of a predetermined length to which both ducts are connected while straddling the duct, the vicinity of the inlet and outlet of the flow path is a region where the dehumidifying material is not applied, impregnated, or adhered to both surfaces of the heat transfer sheet. part dehumidifying material applied to both sides of the heat transfer sheet, is a impregnated or bonded areas Rutotomoni, flow of a large number of layered partitioned in layers by breathable a number of heat transfer sheet capable of having no heat exchange A path is formed, and the layered flow path connects the one-side duct and the other-side duct, and of two sets of diagonal relationships that intersect, the one-side duct and the other-side duct have a one-side diagonal relationship. Communicated with the other side The first flow path in which the one-side duct and the other-side duct are closed due to the angular relationship, and the one-side duct and the other-side duct are communicated with each other in the other-side diagonal relationship. The second flow path in which the duct and the other side duct are closed are alternately formed , has a shape parallel to the duct and has a long side in the flow direction of the circulating air, and is parallel to the duct Place a moisture absorption / desorption device supported around the center axis,
In the moisture adsorption / desorption device, the first flow path and the second flow path are made to flow in the flow paths facing each other or in parallel to each other. In addition to the flow path configuration, the circulating air is dehumidified on one side of the heat transfer sheet, and at the same time, the circulating air is humidified on the other side of the heat transfer sheet. Adsorption heat accompanying moisture adsorption of the disposed dehumidifying material is configured to promote the moisture desorption effect of the dehumidifying material by thermally conducting the heat transfer sheet and heating the dehumidifying material on the other surface side,
By rotating the moisture adsorbing / desorbing device approximately 180 degrees around the center axis at predetermined time intervals, the first flow path is used as an air supply flow path to flow from one duct to the other duct, and the second flow path Circulates from the one side duct to the other side duct as an exhaust flow path, and circulates from the one side duct to the other side duct as the air supply flow path, while the first flow path serves as the exhaust flow path. It is possible to alternately switch the state of flowing from the side duct to the other side duct, or by rotating the moisture adsorption / desorption device approximately 180 degrees around the central axis at predetermined time intervals. A state in which the air supply channel is circulated from one duct to the other side duct, the second channel is circulated from the other side duct to the one side duct, and the second channel is used as the air supply channel. Duct or Desiccant ventilation system is circulated to the other side duct, characterized in that the switchable said first flow path alternately between a state in which circulating from the other side duct to one side duct as an exhaust passage. The layered flow path of the moisture adsorption / desorption device is configured by bending one or a plurality of heat transfer sheets into a corrugated plate shape having a continuous U-shaped cross section, and disposing side plates and end plates. The desiccant ventilation system according to any one of claims 1 to 3 . A flat plate or a corrugated sheet is used as the heat transfer sheet that divides the first flow path and the second flow path into layers, and a spacer or a corrugated sheet is disposed between the upper and lower heat transfer sheets. The desiccant ventilation system according to any one of claims 1 to 4 , wherein a dehumidifying material is applied, impregnated, or adhered to a part or the entire surface of the corrugated plate. The heat transfer sheet, spacer or corrugated sheet is impregnated with a suspension in which a dehumidifying material formed in a fine particle shape with a diameter of 0.1 mm or less is impregnated, and then dried and fixed to glass fiber, plant fiber, animal fiber and / or Or it is a fibrous sheet, such as a chemical fiber, The desiccant ventilation system in any one of Claims 1-5 characterized by the above-mentioned. The moisture absorption / desorption device is made of a non-conductive material, and a microwave irradiation device for irradiating the moisture absorption / desorption device with microwaves is provided in the vicinity of the moisture absorption / desorption device. The desiccant ventilation system in any one of 1-6 . In the moisture adsorption / desorption device, high-temperature air or warm exhaust exhausted from existing equipment such as a prime mover such as an engine or a fuel cell or a power generation device, a general air conditioner, or a water heater in the first flow path and / or the second flow path. The desiccant ventilation system according to any one of claims 1 to 7 , further comprising introducing means for guiding heated air in a heat exchanger capable of exchanging heat with the desiccant. A detection mechanism for detecting an appropriate connection position between the moisture adsorption / desorption device and the one side duct or the other side duct when the moisture adsorption / desorption device is rotated to switch between an air supply channel and an exhaust channel; The desiccant ventilation system according to any one of claims 1 to 8, further comprising a control unit that controls rotation of the moisture adsorption / desorption device according to a detection result.

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