JP2003001047A - Dehumidification device and cold air generator using this dehumidification device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem with the dehumidification device of the conventional constitution that an increase in the sizes of aperture is resulted since a hygroscopic honeycomb is rotated. SOLUTION: A hygroscopic body 4 which is liquid movably held is segmented to two blasting circuits and one thereof is arranged in a dehumidification circuit 7 and the other in a regeneration circuit 14. Dehumidified air and cold air can be generated by humidifying condensed water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifying device for dehumidifying a room or drying clothes by supplying air of low humidity, and a portable type capable of partially cooling and contributing to energy saving. The present invention relates to a dehumidifying / cooling air generation device.

[0002]

2. Description of the Related Art Conventionally, cooling type devices and adsorption type devices have been used as this type of dehumidifying device. The cooling type is also called a compression type, and has a configuration in which an evaporator of a heat pump using a compressor cools air below its dew point temperature to remove dew condensation water and dehumidify. This structure is effective for dehumidifying medium temperature air around 20 to 30 ° C. That is, when the temperature is low, the humidity is low, or the temperature is 50 ° C. or higher, the cycle operation becomes strict, and it is substantially difficult to dehumidify. In addition, this structure has the drawbacks that it is heavy and has a large operating noise because it is equipped with a metal compressor, an evaporator, and a condenser.

The adsorbing type has a structure in which a honeycomb carrying an adsorbent such as zeolite or silica gel is used to adsorb moisture in the air by the adsorbent to dehumidify it. This configuration regenerates the adsorbent that has adsorbed moisture for repeated use, that is,
It is necessary to desorb the adsorbed moisture. There are two types of regeneration, and there are a batch type in which a moisture absorption process of adsorbing moisture and a regeneration process are alternately repeated, and a continuous type in which a thick disk-shaped honeycomb is rotated and a part thereof is heated to be regenerated. Batch type,
Which of the continuous types is selected is determined by the use, cost, size, and the like. Batch type is used for the underfloor dryer.
A continuous type dehumidifier used for drying clothes and dehumidifying indoors has been put into practical use.

FIG. 5 is a sectional view showing the structure of the dehumidifier. In the case of this structure, while the ceramic hygroscopic honeycomb 57 supporting the thick disk-shaped zeolite is rotated by the belt 58 and the motor 59, the blower fan 60 is operated to blow the indoor air 66. This is the structure. That is, when the air 66 in the room passes through the hygroscopic honeycomb 57 by this air blow, the moisture in the air is adsorbed by the hygroscopic honeycomb 57 and dried. The air 67 thus dried is blown into the room again so that the dehumidification of the room proceeds.

At this time, before the amount of water adsorbed by the hygroscopic honeycomb 57 reaches saturation, the hygroscopic honeycomb 57 of this structure is regenerated. That is, the regeneration circuit 64 including the heater 61, the fan 62, a part of the hygroscopic honeycomb 57, and the air-cooling heat exchanger 63 is used. The room air passes through the hygroscopic honeycomb 57 after passing through the air-cooling heat exchanger 63 to cool the high temperature and high humidity air in the regeneration circuit 64. The hygroscopic honeycomb 57 has a honeycomb skeleton formed by adhering flat and corrugated ceramic paper made of inorganic fibers such as alumina or silica with an inorganic binder. It is constructed by supporting an adsorbent such as zeolite or silica gel in a sol state and then sintering it.

With this configuration, the air heated by the heater 61 is in contact with a part of the hygroscopic honeycomb 57 by the air blown by the fan 62. Therefore, the water adsorbed in this portion is desorbed to become water vapor. This steam is cooled in the air-cooled heat exchanger 63. The dew condensation water generated by cooling is supplied from the pipe 64 to the dehumidifying water recovery container 6
You will be guided to 5.

At this time, as described above, since the hygroscopic honeycomb 57 is rotationally driven by the drive motor 59, the regenerated portion of the hygroscopic honeycomb 57 changes in time series, and the disk-shaped hygroscopic property is obtained. The entire honeycomb is regenerated.

[0008] Further, the conventional cooling device is
A heat pump (air conditioner) that uses a compressor,
There are an electronic refrigerating device using a Peltier element, a cold air fan using heat of vaporization of water, a desiccant cooling device using an adsorbent, and the like.

The air conditioner is suitable for cooling the entire room, and is not widely used as an individualized cold air generating device at present. The reason may be that there are many problems to be solved in terms of usability. That is, there is a point that a CFC, which has a risk of global warming and ozone layer depletion, is used, and that a compressor is installed, so that the sound and vibration are large and the weight is heavy. Further, the cold air generated from the air conditioner has a low humidity, which causes the skin and throat to dry, and thus has a problem that the human body is adversely affected.

The electronic refrigerating apparatus using the Peltier element is expensive and has problems in size and weight.

Further, the cold air fan obtains cold air by humidifying the air by utilizing the heat of vaporization of water, but since the humidity is originally high in the summer, the amount of humidification is reduced and the cold air is satisfactory. I can't get the feeling. Further, excessive humidification has a problem that it promotes generation of mold and the like.

Further, in the case of desiccant cooling, a honeycomb rotor carrying an adsorbent such as zeolite or silica gel is used as a main component, which is configured to rotate. Therefore, there is a problem that the device size becomes large.

[0013] In recent years, global environmental problems have been sought after a lot, and it has been earnestly desired that a personalized cool air generating device which is excellent in energy saving and friendly to human beings is introduced.

[0014]

However, the above conventional dehumidifying device has a problem that a high temperature is required to regenerate the adsorbent such as zeolite or silica gel, and a large amount of energy is required for the regeneration.

The adsorbent used has a high dehumidifying ability in a low-humidity atmosphere, but can adsorb only about 30% of the adsorbent's own weight, that is, the adsorbent has a small adsorbing capacity. Occasionally, it is necessary to frequently repeat moisture absorption and regeneration, which causes a problem that thermal stress exerted on the device is large and reliability is not sufficient.

Further, in the case of the continuous type construction, since the hygroscopic honeycomb is rotated, the size of the equipment is increased, and the optimum rotational speed of the hygroscopic honeycomb is set in which moisture absorption and regeneration are balanced. Had to do.
Therefore, the amount of dehumidification is almost constant in both cases of dehumidifying low-humidity and high-humidity air. In order to dehumidify the high humidity air, it is necessary to further increase the size of the hygroscopic honeycomb to increase the energy required for regeneration, but there is a problem that there is a practical size limit.

Further, since the cold air fan and the desiccant air conditioner utilize the heat of vaporization of water, cold air containing moisture can be generated. It can be said that this is cold wind that is easy on the human body. In particular, desiccant cooling does not increase the humidity when it is used indoors because it is humidified after the dehumidified air that has been dehumidified is cooled with outdoor air. It is excellent in obtaining cold air.

However, in the case of desiccant cooling, the size is as described above, and since the dehumidified air is cooled by the outdoor air, it cannot be carried.
It has a problem that it cannot be used individually.

In the case of a cold air fan, as described above,
There is a problem that it is not suitable for indoor use when it is not possible to obtain a satisfactory feeling of cold wind in the summer, or when it is humidified more than necessary, it will promote the generation of mold and the like. ing.

[0020]

According to the present invention, there is provided a hygroscopic body which is breathable, adsorbs moisture in the aerated air, and is capable of moving the adsorbed moisture, and the hygroscopic body in at least two blowing circuits. A partition plate for partitioning, a ventilation fan that blows air to this dehumidification circuit using one of the divided ventilation circuits as a dehumidification circuit, and a regeneration circuit that uses the other divided ventilation circuit as a regeneration circuit, and blows heated air to this regeneration circuit. A fan and heating means, and a condensation heat exchanger that cools the air at the outlet of the moisture absorber that constitutes the regeneration circuit with the room air at the inlet of the dehumidifying circuit,
The dehumidifying device has a cooling heat exchanger that cools the air at the outlet of the moisture absorber forming the dehumidifying circuit with the air at the inlet of the regeneration circuit.

Moisture is absorbed by the hygroscopic body of the blown indoor air when passing through the hygroscopic body constituting the dehumidifying circuit, and is blown out into the room as dry air. At this time, the adsorbed moisture moves to the moisture absorber that constitutes the regeneration circuit, and becomes hot water vapor again due to the hot air flowing through the regeneration circuit.

This high-humidity air containing water vapor enters the heat exchanger for connection and is cooled by the outside air, whereby dew condensation water is generated and dehumidified.

Further, the dehumidified air that has exited the dehumidifying circuit enters the cooling heat exchanger and is cooled by the air in the room, and becomes dehumidified air with a small temperature rise and is blown into the room.

Thus, it is possible to continuously perform dehumidification and regeneration while the hygroscopic body is kept stationary without rotating. Also, less thermal energy is required for regeneration,
It has a large adsorption capacity and can be configured in a small device. Further, by cooling the moisture absorbent outlet air of the regeneration circuit with the dehumidifying circuit inlet air, the moisture in the room air can be removed as condensed water, and the moisture absorbent outlet air of the dehumidifying circuit is cooled by the regeneration circuit inlet air. Therefore, dehumidified air with a small temperature rise can be obtained.

Further, the heat of vaporization of the condensed water is used to cool the surroundings, and the water required for this humidification can be self-supplied from the dehumidified air, and there is no need for water replenishment, and there is no useless humidification of cold air. It can also be used as a device.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 is characterized in that at least two hygroscopic bodies are provided, which are breathable and adsorb the moisture in the aerated air, and which can move the adsorbed moisture.
A partition plate that divides into one blower circuit, a blower fan that blows to this dehumidifying circuit with one of the divided blower circuits as a dehumidifying circuit, and a regeneration circuit with the other dividing blower circuit that heats the regenerating circuit. A blowing fan and heating means for blowing air, a condensation heat exchanger that cools the air at the outlet of the absorbent that constitutes the regeneration circuit with the room air at the inlet of the dehumidifying circuit, and the outlet of the absorbent that constitutes the dehumidifying circuit. The dehumidifying device has a cooling heat exchanger that cools air with the air at the entrance of the regeneration circuit as a constituent element.

The air blown into the room is adsorbed by the hygroscopic body when passing through the hygroscopic body forming the dehumidifying circuit, and becomes dry air and is blown out into the room. At this time, the adsorbed moisture moves to the moisture absorber that constitutes the regeneration circuit, and becomes hot water vapor again due to the hot air flowing through the regeneration circuit.

The high-humidity air containing the water vapor enters the heat exchanger for connection and is cooled by the outside air, whereby dew condensation water is generated and dehumidified.

The dehumidified air that has exited the dehumidification circuit enters the cooling heat exchanger and is cooled by the air in the room, and becomes dehumidified air with a small temperature rise and is blown into the room.

In this way, it is possible to continuously perform dehumidification and regeneration with the hygroscopic body kept stationary without rotating. Also, less thermal energy is required for regeneration,
It has a large adsorption capacity and can be configured in a small device. Further, by cooling the moisture absorbent outlet air of the regeneration circuit with the dehumidifying circuit inlet air, the moisture in the room air can be removed as condensed water, and the moisture absorbent outlet air of the dehumidifying circuit is cooled by the regeneration circuit inlet air. Therefore, dehumidified air with a small temperature rise can be obtained.

Further, the heat of vaporization of the condensed water is used to cool the surroundings, and the water necessary for this humidification can be self-supplied from the dehumidified air, and there is no need for water replenishment, and cold air is generated without wasteful humidification. It can also be used as a device. Moisture is absorbed by the hygroscopic body of the blown air in the room when passing through the hygroscopic body of the dehumidifying circuit, and is blown out into the room as dry air. At this time, the adsorbed moisture moves to the moisture absorber that constitutes the regeneration circuit, and becomes hot water vapor again due to the hot air flowing through the regeneration circuit.

The high-humidity air containing the steam is dehumidified by entering the heat exchanger for connection and cooled by the outside air to generate dew condensation water.

The dehumidified air that has exited the dehumidifying circuit enters the cooling heat exchanger and is cooled by the air in the room, and becomes dehumidified air with a small temperature rise and is blown into the room.

In this way, it is possible to continuously perform dehumidification and regeneration while the hygroscopic body is kept stationary without rotating. Also, less thermal energy is required for regeneration,
It has a large adsorption capacity and can be configured in a small device. Further, by cooling the moisture absorbent outlet air of the regeneration circuit with the dehumidifying circuit inlet air, the moisture in the room air can be removed as condensed water, and the moisture absorbent outlet air of the dehumidifying circuit is cooled by the regeneration circuit inlet air. Therefore, dehumidified air with a small temperature rise can be obtained.

In the invention described in claim 2, in addition to the constitution described in claim 1, the hygroscopic body is a carrier having air permeability and liquid absorbability, a water-absorbent resin carried on the carrier, and moisture absorption. The dehumidifying device is configured to have an inorganic salt having a property.

By using a hygroscopic material carrying a water-absorbent resin and an inorganic salt having hygroscopicity, the amount of moisture that can be absorbed and retained can be made larger than that of conventional ones, and the amount of moisture that has absorbed is less likely to evaporate. The device can be efficiently formed, and the device can be formed in a small size with a simple structure.

According to the invention described in claim 3, in addition to the structure described in claim 2, the moisture absorbent is a dehumidifying device having a structure in which at least a part thereof is covered with a sheet having both moisture permeability and waterproofness.

Since the hygroscopic body is covered with a sheet having both moisture permeability and a waterproof sheet, the aqueous solution of the inorganic salt generated by the hygroscopicity is biased to a part, and the water absorbent resin and the carrier are temporarily held at that portion. Even if the amount of liquid absorbed by the holder is exceeded,
The overflow of the aqueous solution of inorganic salts can be prevented. Further, it is possible to avoid contact between the hygroscopic body and the casing material that houses the moisture absorbent, and it is possible to improve the reliability of the casing material.

According to the invention described in claim 4, in addition to the structure described in any one of claims 1 to 3, the dew condensation heat exchanger is a dehumidifying device composed of orthogonal honeycombs.

By constructing the heat exchanger for dew condensation with the orthogonal honeycomb, the dehumidifying device can efficiently dehumidify the regenerated air having a high humidity and the dehumidifying water can be used for cooling. .

According to the invention described in claim 5, in addition to the structure described in any one of claims 1 to 4, the cooling heat exchanger is a dehumidifying device composed of orthogonal honeycombs.

By forming the cooling heat exchanger by the orthogonal honeycomb, the dehumidifying device can efficiently lower the temperature of the dehumidified air with a simple structure and prevent the temperature rise in the room.

In a sixth aspect of the present invention, the dehumidifying device according to any one of the first to fifth aspects and the dew condensation water generated in the dew condensation heat exchanger are converted into air at the outlet of the cooling heat exchanger. A cold air generator having a humidifier as a constituent element is provided.

The dew condensation water generated in the condensation heat exchanger can be humidified by the humidifier provided at the outlet of the cooling heat exchanger in the dehumidification circuit, and cold wind containing moderate humidity and gentle to the skin can be generated.

According to a seventh aspect of the present invention, in addition to the structure described in the sixth aspect, the humidifier has an opening for introducing condensed water from the heat exchanger for condensation to the upper end and closing the lower end. And a second passage through which air at the outlet of the cooling heat exchanger passes, and is composed of an orthogonal honeycomb that can humidify condensed water that has moved from the one passage to the other passage. It is used as a cold air generator.

By constructing the humidifier with the orthogonal honeycomb, the dehumidified air at the outlet of the cooling heat exchanger can be efficiently humidified, and the cooling air generating device having the improved cooling effect is provided.

According to the invention described in claim 8, in addition to the structure described in claim 7, in the dew condensation water introduction flow path of the orthogonal honeycomb,
The cold air generating device has a configuration in which an endothermic material having a negative heat of dissolution with respect to water is arranged.

By adopting a constitution in which an endothermic material having a negative heat of dissolution for water is arranged in the dew condensation water introduction flow path of the orthogonal honeycomb, cooling using both the heat of vaporization of water and the negative heat of dissolution is achieved. It is a cool air generator.

According to a ninth aspect of the present invention, in addition to the configuration according to the seventh or eighth aspect, a cold air generating device having a structure in which a water absorbing resin carrying a heat absorbing material is arranged in the dew condensation water inflow passage of the orthogonal honeycomb. I am trying.

By arranging the water absorbing resin supporting the heat absorbing material in the dew condensation water inflow passage of the orthogonal honeycomb, the heat absorbing material can be stably dispersed and held, and the cold air generating device with stable characteristics can be obtained.

[0051]

(Embodiment 1) A first embodiment of the present invention will be described below. FIG. 1 is an explanatory diagram showing the configuration of the dehumidifying device of this embodiment. Further, FIG. 2 is a cross-sectional view showing the structure of the moisture absorbent body used in this dehumidifying device, and is a front view seen from the X direction shown in FIG.

That is, the dehumidifying device 1 of this embodiment is
The indoor air 3 sucked by the blower fan 2 is dehumidified by passing through the dehumidifying side hygroscopic body 4a, and the dried air 5 is cooled by the cooling heat exchanger 6 and blown again into the room. The inside of the room is dried. The dehumidifying side air circuit is referred to as a dehumidifying circuit 7.

The upper part of the dehumidifying circuit 7 is the regenerating circuit 1.
It is 4. The regeneration circuit 14 includes a heater 8, a regeneration blower fan 9, and a regeneration-side moisture absorber 4b that is integrated with the dehumidification-side moisture absorber 4a. That is, the air heated to a high temperature by the Joule heat generated by energizing the heater 8 is passed through the regeneration-side hygroscopic body 4b by the blowing of the regeneration blower fan 9.

At this time, the dehumidifying-side hygroscopic body 4a adsorbs moisture in the air in the room blown by the blower fan 2, and the adsorbed moisture is diffused to the regeneration-side adsorbing body 4b. Therefore, the above-mentioned high temperature air vaporizes the moisture diffused in the regeneration side adsorbent 4b into water vapor. Therefore, high-humidity air flows through the regeneration circuit 14.

The high-humidity and high-temperature air 10 that has exited the moisture absorber 4b on the regeneration side is cooled in the dew condensation heat exchanger 11 by exchanging heat with the amount of heat of the indoor air 3 blown by the blower fan 2. . Therefore, the moisture in the high-humidity high-temperature air 10 becomes the condensed water 12 and is stored in the condensed water storage container 13.

The dehumidifying-side hygroscopic body 4a and the regenerating-side adsorbing body 4b used here are one hygroscopic body 4 as shown in FIG.
It is composed by. In this embodiment, the hygroscopic body 4 is composed of a honeycomb body. That is, the hygroscopic body 4 is, for example, an inorganic material having hygroscopicity such as calcium chloride or lithium chloride after carrying a predetermined amount of a solution of the water-absorbent resin 21 on the skeleton of the carrier 20 using a ceramic honeycomb and drying the solution. It is manufactured by carrying a predetermined amount of an aqueous solution of salts 22 and drying it. The moisture absorber 4 thus formed has a film of the water absorbent resin 21 formed around the carrier 20.
The inorganic salt 22 is held in the film of the water absorbent resin 21. The hygroscopic body 4 is arranged across the dehumidifying circuit 7 and the regenerating circuit 14. The moisture absorbent on the dehumidifying circuit side is the moisture absorbent on the dehumidifying side 4a as described above,
The absorbent on the reproducing circuit side is referred to as the reproducing-side absorbent 4b.

The dehumidifying-side hygroscopic body 4a and the regenerating-side hygroscopic body 4b are
It is partitioned by a partition plate 23. The partition plate 23 is set so that its width is equal to or greater than the pitch of the corrugated shape of the honeycomb body used as the carrier 20. Therefore, the dehumidifying-side hygroscopic body 4a and the regenerating-side hygroscopic body 4b are separated by the partition plate 23, and air in both circuits is not mixed.

In the present embodiment, as the water absorbent resin 21,
The poly-N-vinylacetamide or polyvinyl alcohol-based polymer or polyalkylene oxide-based polymer is used alone or in combination.

Further, in the present embodiment, at least a part of the hygroscopic body 4 is covered with a sheet having both moisture permeability and waterproofness. In this embodiment, a Teflon (registered trademark) porous film or a plastic film having a surface coated with a silicone resin is used as the sheet.

The operation of this embodiment will be described below.
When the indoor air 3 comes into contact with the dehumidification-side hygroscopic body 4a by the operation of the blower fan 2, the dehumidification-side hygroscopic body 4a adsorbs the moisture contained in the air. That is, the dehumidifying side adsorbent 4 a has the water absorbent resin 21 and the inorganic salts 22.

So far, as materials having high hygroscopicity, adsorbents such as zeolite and silica gel and inorganic salts such as calcium chloride and lithium chloride have been known. Inorganic salts have a larger moisture absorption capacity than adsorbents, and due to this feature, they have been put into practical use as desiccants for indentation. However,
When it is used as a dehumidifying device, the deliquescent property that inorganic salts absorb moisture to form a liquid, and the volume change due to the crystal forms of various hydrated salt types are major disadvantages, and there is a history of practical application in the past. However, it is now superseded by adsorbents.

As a result of earnest studies, the inventors have found that the water-absorbent resin 21 used in this example is effective for solving the deliquescent property of the inorganic salt, and the inorganic salt 22 and the water-absorbent resin 21 are effective.
It has been found that by combining and with high moisture absorption performance, the disadvantages of deliquescent and volume change can be overcome.

Regarding the hygroscopic performances of the adsorbent and the inorganic salt material alone, the hygroscopic speed is almost the same, and the adsorbent has a moisture absorption capacity of about 30% of its own weight. The amount of the inorganic salts 22 present is 200 to 300% of its own weight. In addition, the temperature at the time of regeneration is 150 ° C. or higher for zeolite and 120 to 130 ° C. for silica gel, while
The inorganic salts 22 used in this example have a temperature of about 110 ° C. That is, the inorganic salts 22 used in this example are the easiest to regenerate. Further, even when the inorganic salts 22 and the water absorbent resin 21 are combined, the characteristics of the inorganic salts 22 can be maintained.

As the water-absorbent resin 21 capable of absorbing the aqueous solution of the inorganic salts 22, poly-N-vinylacetamide, polyvinyl alcohol type polymer and polyalkylene oxide type polymer are preferable. These water absorbent resins 21 have a weight of 1
It has a liquid absorption property of 0 times or more. Further, as the inorganic salts 22, a compound in which an alkali metal / alkaline earth metal and a halogen element are combined is preferable because of high hygroscopicity.
Specifically, calcium chloride, lithium chloride, magnesium chloride, calcium bromide, lithium bromide alone,
Alternatively, they can be used in combination.

As a result, the air that has passed through the moisture absorber 4a becomes the dry air 5 because the moisture in the air is adsorbed. This dry air 5 enters the cooling heat exchanger 6. The heat exchanger 6 for cooling is
An air passage through which the dry air passes and a blower fan 9 for regeneration
Is composed of a honeycomb body having a ventilation path through which the outside air for sucking and blowing air passes. In this embodiment, the honeycomb body is an orthogonal honeycomb body having a configuration in which the two ventilation passages are orthogonal to each other. Therefore, the dry air 5 is cooled by the outside air 30 blown by the regeneration blower 9 to reach almost room temperature and is blown indoors.

As a result, the temperature of the room is not increased by blowing the dry air 5.

As described above, in the present embodiment, the indoor air 3 blown by the blower fan 2 is dehumidified to become the dry air 5 and is repeatedly blown into the room, thereby repeating the dehumidification (drying) of the room. Progresses.

At this time, the moisture adsorbed by the hygroscopic body 4a is an aqueous solution of the inorganic salts 22, and the amount exceeding the adsorption capacity of the inorganic salts 22 travels along the skeleton of the carrier 20 and the regenerating side hygroscopic body 4b. Spread to.

As shown in FIG. 2, the regeneration-side hygroscopic body 4b has a corrugated air blowing path, and the air heated by the heater 8 is fed by the regeneration fan 9 to this air blowing path. It's blown. Therefore, the moisture diffused in the regeneration-side hygroscopic body 4b is vaporized and desorbed from the carrier 20, and becomes water vapor. Therefore, the air passing through the regeneration-side hygroscopic body 4b is hot and humid due to the steam.

The high-temperature and high-humidity air 10 is blown to the dew condensation heat exchanger 11 by the blower fan 9 for regeneration. The connection heat exchanger 11 is formed of a honeycomb body having an air passage through which the high-temperature and high-humidity air 10 passes and an air passage through which the air 3 in the chamber that is inhaled and blown by the blower fan 2 passes. . In this embodiment, the honeycomb body is an orthogonal honeycomb body having a configuration in which the two ventilation passages are orthogonal to each other. Therefore, the high temperature and high humidity air 10
Is cooled to below its dew point temperature by the air 3 in the room. As a result, the water contained in the high-temperature and high-humidity air 10 is condensed to form water droplets 12. The water droplets 12 are stored in the dehumidified water storage container 13.

At this time, as described above, the inorganic salts 22 used in this embodiment release the water content exceeding the saturated adsorption capacity to the carrier 20. This water is carrier 20
The water absorbent resin 21 diffuses into the moisture absorbent 4b on the reproduction side. Due to the release of the adsorbed moisture, the adsorption ability of the inorganic salts 20 is restored.

In this way, dehumidification is continuously performed on the dehumidification-side hygroscopic body 4a and regeneration is continuously performed on the regenerating-side hygroscopic body 4b.

The inventors have found that the thickness is 75 mm and the width is 100 m.
m, length 200 mm, dehumidification / regeneration division ratio 7: 3 By confirming that it is possible to achieve a dehumidification amount (250 g / h) equivalent to the dehumidification amount of the current clothes dryer by using a moisture absorber specification. There is.

Although the dehumidification-side hygroscopic body 4a is divided into two in the above embodiment, it goes without saying that the regenerating-side hygroscopic body 4b may be divided into two. In addition, although the moisture absorber 4 is arranged vertically in the embodiment, it goes without saying that it may be arranged horizontally. Although the honeycomb body is used as the carrier, a fibrous body may be used. Furthermore, the contact portion of the hygroscopic body 4 with the casing material can be covered with a moisture-permeable / waterproof sheet to prevent corrosion of the casing material and enhance safety.

As described above, according to this embodiment, the moisture absorber 4
As the structure, the honeycomb body is used as the carrier 20, and the water absorbent resin 21 and the inorganic salts 22 are carried on the carrier 20, so that the moisture absorbent 4 can absorb and retain a larger amount of water than before. Further, the vaporization of the absorbed moisture can be efficiently performed with a small amount of energy, and the apparatus can be formed in a small size with a simple structure. Further, the moisture absorption and the regeneration can be performed at the same time, and a regeneration cycle is not particularly required. Since the thermal stress is small, a dehumidifying device having sufficient reliability can be realized.

Further, in this embodiment, the dehumidified water storage container 13 is used. In the dehumidified water storage container 13, water drops 12 dehumidified from the indoor air 3 are stored. This dehumidified water is vaporized by taking heat of vaporization from the surroundings. That is, in the case of the configuration of the present embodiment, cooling can be performed by utilizing the heat of vaporization of dehumidified water. Moreover, the water required for this cooling can be self-supplemented from the dehumidifying section, and there is no need for water replenishment, and there is no wasteful humidification.

(Embodiment 2) Next, a second embodiment of the present invention will be described. FIG. 3 is an explanatory diagram showing the configuration of the cold air generator of this embodiment. In this embodiment, a humidifier 25 is added to the structure described in FIG.

The humidifier 25 converts the dry air 27 into condensed water 12
The humidification is performed with the configuration shown in FIG. FIG. 4 is a perspective view showing the configuration of the humidifier 25 of this embodiment. The humidifier 25 of the present embodiment is constituted by, for example, an orthogonal honeycomb made of hydrophilic ceramic. That is, one flow path is a flow path 26 into which the condensed water 12 generated by the condensation heat exchanger 11 arranged in the upper part flows. The upper portion of this flow path 26 is an opening,
The lower end is closed. Further, the air 27 at the outlet of the cooling heat exchanger 6 passes through the flow passage 28 provided so as to be orthogonal to the flow passage 26.

With this configuration, the humidifier 25
Is capable of humidifying the dehumidified air 27 at the outlet of the cooling heat exchanger 6. Therefore, according to the present embodiment, it is possible to provide a cold air generating device with an improved cooling effect.

At this time, although not particularly shown, a heat absorbing material having a negative heat of dissolution for water may be arranged in the dew condensation water introducing passage of the humidifier 25. With this configuration, both the negative heat of dissolution of the heat absorbing material and the heat of vaporization of water can be used, and a more effective cold air generating device can be obtained.

As the heat absorbing material, inorganic / organic hydrated salts such as calcium chloride hexahydrate, sodium sulfate decahydrate, sodium acetate trihydrate, and sugar alcohols such as erythritol can be used.

Further, by disposing the water absorbing resin carrying such heat absorbing material in the dew condensation water inflow passage of the humidifier 25, the heat absorbing material can be dispersed and held in the water absorbing resin to realize stable generation of cold heat. As the water absorbent resin, poly N-vinyl acetamide, thermoplastic polyurethane, polyvinyl alcohol polymer, polyalkylene oxide polymer alone,
Alternatively, they can be used in combination. All of these have excellent liquid absorbing properties with respect to an aqueous solution of inorganic salts. Thermoplastic polyurethane, polyvinyl alcohol polymer, and polyalkylene oxide polymer are soluble in a solvent such as methanol and can be carried on a carrier, and since they have thermoplasticity, they can be processed into various shapes. You can also
On the other hand, since poly N-vinylacetamide is insoluble,
This can be crushed and used with a binder. Needless to say, the amount of the inorganic salt aqueous solution absorbed varies depending on the type of the water absorbent resin.

[0083]

According to the first aspect of the present invention, there is provided at least two air-absorbing members having a hygroscopic material which is breathable, adsorbs moisture in the aerated air, and can move the adsorbed moisture. A partition plate that is divided into two, a ventilation fan that blows air into this dehumidification circuit using one of the divided blower circuits as a dehumidification circuit, and a regeneration circuit that uses the other divided blower circuit that sends heated air to this regeneration circuit. A blower fan and heating means, and a dew condensation heat exchanger that cools the air at the outlet of the absorbent that constitutes the regeneration circuit with the room air at the inlet of the dehumidifying circuit,
As a configuration having a cooling heat exchanger that cools the air at the outlet of the moisture absorbent that constitutes the dehumidifying circuit with the air at the inlet of the regeneration circuit, the conventional moisture absorbent is continuously operated in a stationary state without rotating. Dehumidification and regeneration can be performed, the heat energy required for regeneration is small, the adsorption capacity is large, and the dehumidification device is a compact device that uses dehumidified air with little temperature rise. is there.

In a second aspect of the present invention, the hygroscopic body comprises a carrier having air permeability and liquid absorbability, a water absorbent resin carried on the carrier and an inorganic salt having hygroscopicity. The amount of moisture that can be absorbed and retained can be made larger than that of the conventional one, and the vaporization of the absorbed moisture can be efficiently performed with a small amount of energy, and a dehumidifying device that can form a compact device with a simple configuration is realized. is there.

According to the third aspect of the invention, the hygroscopic body has a structure in which at least a part of the hygroscopic body is covered with a sheet having both moisture permeability and waterproofness, and the water absorbent resin and the carrier are temporarily combined. A dehumidifying device that can prevent the overflow of the aqueous solution of inorganic salts even when the liquid absorption amount is exceeded, avoid contact between the hygroscopic body and the casing material that houses it, and improve the reliability of the casing material. To do. .

In a fourth aspect of the present invention, the heat exchanger for dew condensation is composed of orthogonal honeycombs, and the dehumidified water can be efficiently dehumidified from the regenerated air that has become highly humid with a simple structure. Thus, a dehumidifying device capable of cooling can be realized.

According to the fifth aspect of the invention, the cooling heat exchanger is constituted by the orthogonal honeycombs, the temperature of the dehumidified air can be efficiently lowered with a simple structure, and the temperature rise in the room can be prevented. It realizes a dehumidifying device.

According to a sixth aspect of the present invention, the dehumidifying device according to any one of the first to fifth aspects and the dew condensation water generated in the dew condensation heat exchanger are converted into air at the outlet of the cooling heat exchanger. As a configuration having a humidifier for humidifying, a cold air generating device capable of generating cold air that contains moderate humidity and is gentle to the skin is realized.

According to a seventh aspect of the present invention, in a humidifier, an upper portion has an opening for introducing condensed water from a condensation heat exchanger and a lower end is closed, and a cooling passage. The outlet of the heat exchanger has the other flow passage through which the air passes, and the dew condensation water that has moved from the one flow passage to the other flow passage is constituted by the orthogonal honeycomb that can humidify the dehumidified air efficiently. The present invention realizes a cool air generating device which can be performed and has an improved cooling effect.

According to the invention described in claim 8, a heat absorbing material having a negative heat of dissolution with respect to water is disposed in the dew condensation water introduction flow path of the orthogonal honeycomb, and the heat of vaporization of the water and the negative heat of dissolution are This is to realize a cool air generator capable of cooling using both.

According to the invention described in claim 9, the water absorbent resin carrying the heat absorbing material is arranged in the dew condensation water inflow passage of the orthogonal honeycomb so that the heat absorbing material can be stably dispersed and held, and the cold air with stable characteristics can be obtained. It realizes a generator.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of a dehumidifying device that is a first embodiment of the present invention.

FIG. 2 is a front view showing the structure of the moisture absorbent body.

FIG. 3 is a cross-sectional view showing a configuration of a cold air generator which is a second embodiment of the present invention.

FIG. 4 is a perspective view showing the configuration of the humidifier.

FIG. 5 is an explanatory diagram showing a configuration of a conventional dehumidifying device.

[Explanation of symbols]

4 Hygroscopic body 4a Dehumidifying side moisture absorber 4b Regenerated side absorbent 6 Cooling heat exchanger 7 Dehumidification circuit 8 heater 11 Condensation heat exchanger 14 Playback circuit 20 carrier 21 Water absorbent resin 22 Inorganic salts 23 Partition Board 25 humidifier

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3L053 BC03 BC05 BC10                 4D052 AA08 BA02 BB01 CE00 DA01                       DA06 DB01 DB04 FA01 FA04                       FA05 HA01 HA03 HA12 HA14                       HA27 HB02 HB06

Claims (9)

[Claims] 1. A hygroscopic material having air permeability, which adsorbs moisture in the aerated air, and is capable of moving the adsorbed moisture; a partition plate which divides the hygroscopic body into at least two air-blowing circuits; One of the blower circuits is used as a dehumidifying circuit and a blower fan that blows air to this dehumidifying circuit, and the other divided blower circuit that is a regenerating circuit, and a blower fan and heating means for blowing heated air to the regenerating circuit, and the dehumidifying unit. Condensation heat exchanger that cools the air at the outlet of the moisture absorbent that constitutes the regeneration circuit with the indoor air at the inlet of the circuit, and cooling that cools the air at the outlet of the moisture absorbent that constitutes the dehumidification circuit with the air at the inlet of the regeneration circuit Dehumidifying device having a heat exchanger for use. 2. The dehumidifying device according to claim 1, wherein the hygroscopic body has a carrier having air permeability and liquid absorbability, a water absorbent resin carried on the carrier, and an inorganic salt having hygroscopicity. 3. The dehumidifying device according to claim 2, wherein at least a part of the hygroscopic body is covered with a sheet having both moisture permeability and waterproofness. 4. The dehumidifying device according to claim 1, wherein the dew condensation heat exchanger is composed of orthogonal honeycombs. 5. The dehumidifying device according to claim 1, wherein the cooling heat exchanger is formed of orthogonal honeycombs. 6. A dehumidifying device according to any one of claims 1 to 5, and a humidifier for humidifying the dew condensation water generated in the dew condensation heat exchanger with the air at the outlet of the cooling heat exchanger. Cold air generator. 7. The humidifier has one opening having an opening for introducing condensed water from the condensation heat exchanger and having a closed lower end, and air at the outlet of the cooling heat exchanger. 7. The cold air generation device according to claim 6, wherein the cold air generation device has the other flow passage through which the water passes through, and is constituted by an orthogonal honeycomb that can humidify the condensed water that has moved from the one flow passage to the other flow passage. 8. The cold air generator according to claim 7, wherein an endothermic material having a negative heat of dissolution with respect to water is arranged in the dew condensation water introduction flow path of the orthogonal honeycomb. 9. The cold air generator according to claim 7, wherein a water absorbing resin carrying a heat absorbing material is arranged in the dew condensation water inflow passage of the orthogonal honeycomb.