JP2002177729A - Humidity controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a humidity controller capable of preventing dew formation in a ventilation passage for regeneration and capable of preventing water leakage in the controller and generation of mold, rust, etc. SOLUTION: A dew formation preventing means has a constitution in which low moisture air is joined to a highly humidified air by releasing moisture from a moisture absorbing rotor 8, as a concrete example, in the ventilation passage for regeneration 21, a by-path passage 13 for connecting he upstream side and the downstream side of the moisture absorbing rotor 8 is provided and the air passing through the by-path passage 13 is used as a low moisture air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifier used in ordinary households for humidification, dehumidification, and ventilation, and more specifically to a ventilation passage during humidification operation or dehumidification operation. TECHNICAL FIELD The present invention relates to a humidity controller provided with a means for preventing dew condensation of water in the inside.

[0002]

2. Description of the Related Art Conventionally, various types of air conditioners capable of dehumidifying, humidifying, or ventilating by using a rotary moisture absorbing rotor have been considered, and all of them use a property that the rotary moisture absorbing rotor absorbs water. And, to give an example, FIGS.
4 is known.

FIG. 1 is a schematic configuration diagram showing a conventional humidity controller. A rotary moisture absorber that absorbs moisture contained in air and separates the absorbed moisture by heated air inside the humidity controller. A rotor 8, a moisture-absorbing ventilation path 20 for adsorbing moisture to the moisture-absorbing rotor 8, and a regeneration ventilation path 21 for releasing moisture from the moisture-absorption rotor are provided. 21 are arranged.

As described above, the moisture absorbing rotor 8 is a rotary rotor interposed in the middle of the moisture absorbing ventilation passage 20 and the regeneration ventilation passage 21, and has a band-like sheet shape such as a ceramic sheet having a predetermined width and length. The base material is impregnated with a dispersion liquid in which zeolite as an adsorbent is dispersed, and is carried thereon. Corrugated processing having a height of about 1 mm to 1.5 mm is also performed using a belt-shaped flat sheet also carrying zeolite. After being bonded and integrated, it is formed into a substantially cylindrical shape by winding in the length direction.

The moisture absorbing rotor 8 has a rotating shaft 22 at its center.
The motor 9 is connected to one end of the rotating shaft 22, and rotates around the rotating shaft 22 as the motor 9 is driven. When the moisture-absorbing rotor 8 is viewed from the rotation axis direction, there are many honeycomb-shaped gaps similar to the cross section of the corrugated cardboard, and it is designed so that the pressure loss of the air passing through the moisture-absorbing rotor 8 in the axial direction is reduced. ing.

The moisture absorption ventilation passage 20 is formed so that air taken in from the first indoor air suction port 1 facing the room passes through the moisture absorption rotor 8, and the first indoor air is provided downstream of the moisture absorption rotor 8. The path is branched into a path leading to the outlet 3 and a path leading to the first outdoor air outlet 4. A switching damper 12 for switching the ventilation path is provided at this branch portion, and the outlet from which the air passing through the moisture absorbing rotor 8 is discharged can be selectively switched.

[0007] The regeneration ventilation passage 21 is provided in the second indoor air inlet 2.
Is heated by a regenerative heater 7 installed on the upstream side of the moisture absorption rotor 8 so that the heated air passes through the moisture absorption rotor 8, and the above-mentioned branch is formed on the downstream side of the moisture absorption rotor 8. Connected to the unit. That is, in the branching section, when the air outlet of the moisture absorption air passage 20 is connected to the first indoor air outlet 3 side by the switching damper 12, the air outlet of the regeneration air passage 21 is connected to the first outdoor air outlet 4 side. When the air outlet of the moisture absorption air passage 20 is connected to the first outdoor air outlet 4, the air outlet of the regeneration air passage 21 is connected to the first indoor air outlet 3. ing.

A moisture absorption fan 10 and a regeneration fan 11 are provided on the upstream side of the moisture absorption rotor 8 in the moisture absorption ventilation passage 20 and the regeneration ventilation passage 21, respectively. Further, the humidity controller is provided with an outdoor ventilation passage 23 that takes in outside air from the first outdoor air suction port 5 and blows out the air from the second indoor air outlet 6.

In the above configuration, the operation of the conventional humidity controller during the dehumidifying operation will be described with reference to FIG. Arrows in the figure indicate the flow of air. In this case, 12
As shown in the figure, the air passage 20 is switched so as to communicate with the first indoor air outlet 3, while the regeneration air passage 21 is communicated with the first outdoor air outlet 4.

In this state, the motor 9 for the moisture absorption rotor, the moisture absorption fan 10, the regeneration fan 11, and the regeneration heater 7 are energized. The moisture in the indoor air guided from the first indoor air suction port 1 to the moisture absorption ventilation path 20 by the moisture absorption fan 10 is adsorbed by the moisture absorption rotor 8, and the dried air is exhausted from the first indoor air outlet. On the other hand, the room air flowing into the regeneration ventilation passage 21 by the regeneration fan 11 is supplied to the regeneration heater 7.
And is passed through the moisture absorption rotor 8. At this time,
The moisture in the moisture absorbing rotor 8 adsorbed in the moisture absorbing ventilation path is desorbed, and moist air containing a large amount of moisture is discharged from the first outdoor air outlet 4.

Therefore, the moisture in the indoor air is gradually removed by the repeated moisture absorption and desorption of the moisture in the moisture absorbing rotor 8, and the exhaust of the dry air into the room and the discharge of the humid air outside the room, whereby the moisture in the indoor air is gradually removed. The effect is obtained.

Next, the operation of the humidifying operation will be described with reference to FIG. In this case, the switching damper 12 is switched such that the moisture absorption ventilation passage 20 communicates only with the first outdoor air outlet 4 and the regeneration ventilation passage 21 communicates only with the first indoor air outlet 3 as shown. In this state, the motor 9, the moisture absorption fan 10, the regeneration fan 11, and the regeneration heater 7
Turn on electricity.

The moisture in the indoor air guided to the moisture absorption ventilation passage 20 by the moisture absorption fan 10 is absorbed by the moisture absorption rotor 8, and the dried air is exhausted from the first outdoor air outlet 4. On the other hand, the indoor air that has flowed into the regeneration ventilation passage 21 into the regeneration fan 11 desorbs moisture from the moisture absorption rotor 8 and is discharged from the first indoor air outlet 3 as high-humidity air containing much moisture. Therefore, the moisture absorption repeated by the moisture absorption rotor 8,
By desorption, the exhaust of dry air to the outside of the room and the discharge of humid air to the room, moisture is gradually replenished to the indoor air, and an appropriate humidifying effect is obtained.

The operation during ventilation will be described with reference to FIG. In this case, the switching damper 12 is switched to the same position as in the humidifying operation, and
The moisture absorbing fan 10 is energized to operate. At this time,
The motor 9, the regeneration fan 11, and the regeneration heater 7 are controlled so as not to be energized. Thereby, the indoor air flows in from the first indoor air inlet 1 by the moisture absorption fan 10, and is discharged to the outside from the first outdoor air outlet 4 through the moisture absorption ventilation passage 20, and instead, the outdoor air naturally flows from the outdoor ventilation passage 23. The air flows in from the second indoor air outlet 6, whereby the room can be ventilated.

[0015]

However, in the above-mentioned humidity controller, when the wall temperature of the regenerative ventilation passage decreases as the room temperature decreases, or when the amount of air blown by the regenerating fan 11 increases, the humidity of the moisture absorbing rotor 8 increases. When there is a large amount of water that escapes from the hood, dew condensation may occur in the regenerative ventilation channel, causing water leakage, rust, mold, etc. inside the machine, and releasing from the regenerative ventilation channel Since the amount of water decreased, the humidification ability was reduced. In addition, when the outside air temperature is low, the outside portion of the regeneration ventilation passage and the inside portion near the outside are cooled by the outside air, and the moisture contained in the high-humidity air may freeze.

The amount of air blown by the regenerating fan 11 is set small, and the amount of air blown is
When the amount of water released from the moisture absorbing rotor 8 increases, that is, when the dew point of the regeneration air increases,
A slight drop in room temperature causes dew condensation in the regeneration ventilation passage 21.

In view of the above problem, the present invention prevents dew condensation in the recirculating ventilation passage, and prevents water leakage, mold,
It is an object of the present invention to provide a humidity controller capable of preventing the occurrence of rust and the like.

[0018]

SUMMARY OF THE INVENTION In order to achieve the above object, a humidity controller according to the present invention is provided with a rotary moisture absorbing rotor that absorbs moisture contained in air and separates the absorbed moisture by heated air. A moisture-absorbing ventilation path for adsorbing moisture to the moisture-absorbing rotor, and a regeneration ventilation path for releasing moisture from the moisture-absorption rotor, wherein the moisture-absorption rotor is disposed across the moisture-absorption ventilation path and the regeneration ventilation path. The apparatus is characterized in that dew condensation preventing means for preventing dew condensation of water in the regeneration ventilation passage is provided.

In the above configuration, since the dew condensation preventing means is provided, no dew condensation occurs even if the temperature of the regeneration ventilation passage is lowered, and the occurrence of water leakage, rust, mold and the like in the humidity controller is prevented. Can be prevented.

The dew condensation preventing means may be of any structure which reduces the humidity of the air by desorbing moisture from the moisture absorbing rotor and joining the low-humidity air with the high-humidity air.
Specifically, a bypass path connecting the upstream side and the downstream side of the moisture absorbing rotor to the regeneration ventilation path is provided, and low humidity air passing through the bypass path and moisture are desorbed from the moisture absorbing rotor to increase the humidity. It is possible to adopt a configuration in which the compressed air is merged.

According to the above configuration, a part of the air taken into the regeneration ventilation passage is directly blown to the downstream side of the moisture absorption rotor without passing through the moisture absorption rotor by the bypass passage. Therefore, on the downstream side of the moisture absorption rotor in the regeneration ventilation passage, the air with high humidity passing through the moisture absorption rotor is diluted by the low humidity air blown through the bypass passage, and the humidity of the air as a whole decreases. As a result, dew condensation in the regeneration ventilation path can be prevented.

As the blowing means for blowing air into the bypass passage, a regeneration fan installed in the regeneration ventilation passage may be used, and the entrance of the bypass passage may be formed between the regeneration fan and the moisture absorption rotor. Further, if a ventilation amount adjusting valve is provided in the regeneration ventilation passage so that the amount of air flowing into the bypass passage can be adjusted, it is possible to arbitrarily dilute high-humidity air with low-humidity air.

Further, a control means comprising a temperature sensor for detecting the temperature of the inner wall of the regeneration ventilation passage on the downstream side of the moisture absorption rotor, and a microcomputer for adjusting the opening of the ventilation amount adjusting valve in response to a detection signal from the temperature sensor. Is provided, it is possible to feed an optimal amount of low humidity air into the high humidity air to prevent dew condensation.

Further, as another dew condensation preventing means, a regenerating area for heating a part of the air flowing into the regenerating air passage and sending it to the moisture absorbing rotor by heating means provided on a part of the regenerating air passage cross section. Forming a non-heated area for sending out the remainder of the inflowing air to the moisture absorbing rotor in a non-heated state, and the high-humidity air sent from the regeneration area and the low-humidity air sent out from the non-heated area pass through the moisture absorbing rotor. It is also possible to adopt a configuration that merges.

That is, a regeneration area and a non-heating area may be provided in the regeneration ventilation path on the upstream side of the moisture absorption rotor, and the regeneration ventilation path on the downstream side of the moisture absorption rotor may be formed as one path. In this case, the area in which the heating means is installed is a regeneration area, from which heated air is sent to the moisture absorbing rotor,
The other area is a non-heated area, and air in an unheated state is sent out.

According to the above configuration, in the regeneration ventilation passage, heated air is sent from the regeneration region, and the moisture adsorbed on the moisture absorbing rotor is desorbed to increase the humidity. Since unheated air is sent out from the humidifier, the moisture adsorbed on the rotor is not desorbed even when introduced into the humidifier rotor, and passes through the humidifier rotor in a low humidity state. The moist air is diluted, so that dew condensation in the regeneration ventilation path can be prevented.

It is preferable that the regenerating area and the non-heating area are separated by a partition. Thereby, the air sent from both regions is introduced into the moisture absorbing rotor without being mixed with each other, and the adsorbed moisture of the moisture absorbing rotor can be efficiently desorbed by the high-temperature air sent from the regeneration region. As a method of preventing the air sent from both regions from being mixed with each other, a method in which the superheating means installed in the regeneration region is arranged at a position close to the moisture absorbing rotor may be adopted. is there. In this way, the air delivered from both areas will be introduced into the humid rotor before mixing with each other.

The arrangement of the regeneration region and the non-heating region in the regeneration ventilation passage is not particularly limited. However, if the regeneration region is arranged downstream of the non-heating region with respect to the rotation direction of the moisture absorption rotor, the rotation of the moisture absorption rotor is reduced. By doing so, it becomes possible to desorb the adsorbed moisture of the entire rotor by the heated air sent from the regeneration area, and the air sent from the non-heating area has a low humidity without being affected by the heat of the regeneration area. It is possible to pass through the moisture absorbing rotor as it is.

That is, the cross section of the regenerative ventilation passage is generally such that the entire area of the regenerative rotor passes through the regenerating area and the adsorbed water of the adsorbent is desorbed when the rotor rotates one revolution. It is formed in a fan shape that extends toward the outer peripheral side around the axis. Therefore, when this regeneration ventilation passage is divided into an upstream side and a downstream side by a line passing through the center of the fan shape, one rotation of the moisture absorbing rotor introduces heated air to the entire area of the moisture absorbing rotor to desorb adsorbed moisture. Can be.

When the regeneration area is disposed upstream of the non-heating area with respect to the rotation direction of the moisture absorption rotor in the regeneration ventilation path, the moisture absorption rotor is heated by the heated air sent from the regeneration area, and the downstream side is heated. Therefore, even if unheated air is sent out in the non-heating area, there is a possibility that moisture may be desorbed from the moisture absorbing rotor. In addition, in this case, on the contrary, while the moisture absorbing rotor passes through the non-heating area, the rotor is rapidly cooled to a temperature suitable for moisture absorption, and moisture in the indoor air blown to the non-heating area may be absorbed. Occurs.

For example, the amount of moisture that can be absorbed in the moisture absorption region,
That is, assuming that the amount of water that can be released in the regeneration region is M1g and the amount of moisture that is adsorbed in the non-heating region is M2g, the M1g water retained by the moisture absorption rotor is released while the moisture absorption rotor passes through the regeneration region. Then, while passing through the non-heating area, the water content of M2g is adsorbed from the room air.
Here, while passing through the next moisture absorption region, the amount of moisture that can be absorbed in the moisture absorption region is M1g, so that the moisture absorption rotor that already contains M2g moisture adsorbs M1-M2g moisture, M2 g of water that should be adsorbed here is passed without being adsorbed.

The indoor air containing M2 g of moisture that has passed through the moisture absorption region is discharged outside during the humidification operation, thereby reducing the indoor humidification efficiency, and discharged during the dehumidification operation. As a result, indoor dehumidification efficiency is reduced. Therefore, it is preferable that the regeneration area is disposed downstream of the non-heating area with respect to the rotation direction of the moisture absorbing rotor.

Further, as another means for preventing dew condensation, a supporting portion for supporting the adsorbent for adsorbing moisture on the moisture absorbing rotor and a non-supporting portion for not supporting the adsorbing material are formed. The air that has passed and the low-humidity air that has passed through the non-supporting portion may merge after passing through the moisture-absorbing rotor. In this case, the heated air is sent from the whole area of the ventilation passage to the moisture absorption rotor without dividing the regeneration ventilation passage on the upstream side of the moisture absorption rotor. With this configuration, moisture is desorbed from the supporting portion of the adsorbent and high-temperature and high-humidity air is discharged downstream, but high-temperature and low-humidity air is discharged from the non-supporting portion of the adsorbent. The air is diluted to prevent condensation.

The non-supporting portion of the adsorbent may be formed so as to be present in a part of the moisture absorbing rotor in the regeneration area into which the heated air is introduced from the regeneration ventilation passage. For example, the moisture absorbing rotor is concentric with the rotation axis. And either one of the outer peripheral side and the inner peripheral side is an adsorbent non-supporting portion,
What is necessary is just to make the other the support part. Specifically, at the time of creating the moisture absorbing rotor, first, a cylindrical rotor base having a honeycomb structure is prepared, and the rotation axis of the rotor base is rotated in the horizontal direction, and the lower part of the rotor base is rotated. May be impregnated with the dispersion of the adsorbent. In the moisture absorbing rotor obtained in this manner, the outer cylindrical portion divided concentrically around the rotation axis is an adsorbent supporting portion, and the inner cylindrical portion is an adsorbent non-supporting portion.

[0035]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A humidity controller according to the present invention is characterized in that a dew condensation preventing means for preventing dew condensation of moisture in a recirculating ventilation passage is provided, and other configurations are the same as those of a conventional humidity controller. It has been. That is, the configurations of the moisture absorbing rotor 8, the moisture absorbing ventilation path 20, the regeneration ventilation path 21, the switching damper 12, the regeneration heater 7 as a heating means, the moisture absorption fan 10, the regeneration fan 11, and the like and the operation of the humidity controller are shown in FIGS. In the present embodiment, the dew condensation preventing means will be mainly described.

[First Embodiment] FIGS. 5 and 6 are views showing a first embodiment of the present invention. FIG. 5 is a schematic configuration diagram of a humidity controller, and FIG. 3 shows the operation of the humidity controller. As shown in FIG. 5, the humidity controller according to the present invention includes a regeneration ventilation passage 20 traversing the moisture absorption rotor 8 as a dew condensation preventing means.
Is characterized in that a bypass 13 connected to the upstream side and the downstream side is provided. The upstream opening of the bypass passage 13 is connected to the regeneration fan 11 and the regeneration heater 7 in the regeneration ventilation passage.
And the downstream opening of the bypass 13 is formed downstream of the moisture absorbing rotor 8. A part of the air taken in from the room is sent to the downstream side of the moisture absorbing rotor 8 via this bypass path, and separates the moisture from the moisture absorbing rotor to dilute the air in the high-humidity regeneration ventilation passage 21. . As a result, the dew point of the regeneration air can be lowered, and dew condensation can be prevented.

In the above configuration, the operation of the humidity controller will be described by taking a humidifying operation as an example. FIG. 6 is a schematic configuration diagram illustrating a humidifying operation of the humidity controller of the present embodiment. The arrows in the figure indicate the flow of air. In this case, the switching damper 12 has the regeneration ventilation passage 21 communicating with the first indoor air outlet 3 and the moisture absorption ventilation passage 2 as in the conventional humidity controller shown in FIG.
0 is switched to communicate with the first outdoor air outlet 4. In this state, the motor 9 for the moisture absorption rotor, the moisture absorption fan 10, the regeneration fan 11, and the regeneration heater 7 are energized.

The moisture in the indoor air guided from the first indoor air suction port 1 to the moisture absorption ventilation path by the moisture absorption fan 10 is absorbed by the moisture absorption rotor 8, and the dried air is exhausted from the first outdoor air outlet 4 to the outside. Is done. On the other hand, the room air flowing into the regeneration ventilation passage 21 by the regeneration fan 11 is branched on the upstream side of the moisture absorption rotor 8, and is partially heated by the regeneration heater 7 and passes through the moisture absorption rotor 8. Road 20
The water adsorbed by the adsorbent in the inside desorbs and becomes moist air containing much water, and the remaining air flows into the bypass passage 13.

The high-temperature and high-humidity air is diluted by room air flowing into the downstream side of the moisture absorbing rotor 8 via the bypass passage 13, becomes air having a low dew point, and passes through the regeneration ventilation passage 21. The air is discharged from the first indoor air outlet 3 into the room. By discharging the dry air to the outside of the room and exhausting the humid air to the room by the above operation, the room air is gradually replenished with moisture, and a humidifying effect can be obtained.

As described above, the regeneration air passing through the regeneration ventilation passage is diluted by the room air from the bypass passage 13,
Even if the temperature of the ventilation path wall surface is lower than before, it is possible to prevent a decrease in the amount of moisture in the air due to dew condensation, so that the amount of moisture exhausted from the first indoor air outlet 3 into the room, that is, humidification The amount can be increased, and the occurrence of water leakage, rust, mold and the like into the humidity controller can be prevented.

The operation of the humidity controller during the dehumidifying operation is as follows. The switching damper 12 allows the regeneration ventilation passage 21 to communicate with the first outdoor air outlet 4 and the moisture absorption ventilation passage 20 to communicate with the first indoor air outlet 3. The effect of preventing dew condensation in the regenerative ventilation path is exactly the same as that during the humidification operation, although the point of switching is different.

[Second Embodiment] FIGS. 7 and 8 are views showing a second embodiment of the present invention. FIG. 7 is a cross-sectional view of the regeneration ventilation passage on the upstream side of the moisture absorbing rotor 8. FIG. 8 is a longitudinal sectional view (AA sectional view) of the regeneration ventilation passage 21 and the moisture absorption ventilation passage 20 in FIG. The arrows in the figure indicate the flow of air.

In the present embodiment, in the regeneration ventilation passage 21, a part of the inflowing air is heated by the heating means and is sent to the moisture absorbing rotor, and the rest of the inflowing air is absorbed in the non-heated state. A non-heating area 16 is provided to the rotor so that the high-humidity air sent from the regeneration area 14 and the low-humidity air sent from the non-heating area 16 merge in the regeneration ventilation passage 21 after passing through the moisture absorption rotor. The arrangement of the moisture absorption ventilation passage, the regeneration ventilation passage and the outdoor ventilation passage, the switching position of the humidification passage switching damper, and the like are the same as those in the first embodiment.

In FIG. 7, a cylindrical duct 24 having substantially the same diameter as the moisture absorbing rotor 8 is arranged so as to sandwich the moisture absorbing rotor 8 inside the humidity controller. The inside of the duct 24 is formed by partitions 25, 25 formed radially from the center of the duct.
It is divided into a fan-shaped regeneration ventilation passage 21 and a moisture absorption ventilation passage 20. Furthermore, the reproduction ventilation path 21 includes a reproduction ventilation path 21.
A regenerative heater 7 formed in a sector shape having a half size of the cross section (center angle is ２) is installed on the downstream side with respect to the rotation direction of the moisture absorbing rotor 8, and an area where the regenerative heater 7 is installed Is the regeneration region 14 and the upstream region is the non-heating region 16.

The regeneration heater 7 is disposed in the regeneration ventilation passage 21 in the vicinity of the moisture absorption rotor 8 and on the upstream side thereof, and the air heated by the regeneration heater 7 is supplied to the non-heating area 16.
Is introduced into the moisture absorbing rotor 8 without mixing with the air passing therethrough.

The indoor air guided to the moisture-absorbing ventilation passage 20 by the moisture-absorbing fan 10 covers the entire area of the moisture-absorbing ventilation passage 20 shown in FIG.
(Hygroscopic area) is fed into the hygroscopic rotor 8 and adsorbs a water amount close to 100% that the hygroscopic material can hold. On the other hand, the room air flowing into the regeneration ventilation passage 21 by the regeneration fan 11 passes through the regeneration region 14 or the non-heating region 16 as described above.

Here, the room air passing through the non-heating area 16 is introduced into the moisture absorbing rotor 8 without being heated.
At this time, the moisture absorbing rotor 8 contains a water amount close to 100% that can be retained while passing through the moisture absorbing region 15.
Therefore, the moisture of the room air passing through the non-heating area 16 is
It passes without being adsorbed by the hygroscopic material. Furthermore, when the moisture absorption rotor 8 rotates and passes through the regeneration area, the room air passing through the regeneration area 14 is heated by the regeneration heater 7, so that the moisture in the moisture absorption rotor 8 adsorbed in the moisture absorption area 15 is released. To become hot and humid air containing a lot of moisture,
It flows into the downstream side of the moisture absorption rotor 8.

At this time, as shown in the sectional view of FIG. 8, the room air passing through the regeneration area 14 and the non-heating area 16
Of the room air passing through the non-heating region 16 is diluted by the low humidity air passing through the non-heating region 16, and the high humidity air passing through the regeneration region is diluted by the low humidity air passing through the non-heating region 16. It is possible to prevent dew condensation in the regeneration ventilation passage.

By the way, in the first embodiment, a bypass passage 13 is provided which branches off the upstream side of the moisture absorption rotor 8 of the regeneration ventilation passage 21 and joins the downstream side, and the air is blown through the bypass passage 13. The configuration was such that the high-humidity air in the regeneration ventilation passage 21 was diluted with room air.

In this case, in order to efficiently transmit the heat energy of the regeneration heater 7 to the moisture absorbing rotor 8,
It is necessary to set the wind speed of the room air passing through the bypass passage 13 to the optimum speed in order to reduce the influence of the wind speed on the room air from the bypass passage. , That is, the position where the air passing through the moisture absorbing rotor 8 and the air passing through the bypass passage 13 join together must be separated from the moisture absorbing rotor 8 to some extent. Therefore, in the regeneration ventilation passage 21 immediately after passing through the moisture absorbing rotor 8, there is a possibility that high-humidity air containing a large amount of moisture separated from the moisture absorbing rotor 8 may be slightly condensed.

On the other hand, in the present embodiment, the purge region 16 is provided so as to be adjacent to the upstream side of the regeneration region 14 with respect to the rotation direction of the moisture absorbing rotor 8, and the indoor air is supplied to the two regions by the regeneration fan. The indoor air that has been blown and has passed through the respective regions joins on the downstream side of the moisture absorbing rotor 8 to dilute the high-humidity air that has passed through the regeneration region 14. As a result, dew condensation in the regeneration ventilation passage can be prevented even immediately after the regeneration air has passed through the moisture absorption rotor 8.

The present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made within the scope of the present invention. For example, in the above-described embodiment, the air suction ports 1 and 2 of the moisture absorption ventilation path 20 and the regeneration ventilation path 21 are both formed on the indoor side, but outside air may be taken in from the outdoor side.

More specifically, during the dehumidifying operation, air is sucked from the room into the moisture absorbing ventilation passage 20 to release dehumidified air into the room, and air is sucked from outside the air into the regeneration ventilation passage 21 to remove moisture from the moisture absorbing rotor 8. Is released and released outside the room. Further, during the humidification operation, air is sucked from outside the room into the moisture absorption ventilation passage 20 to release dehumidified air outside the room, and air is sucked from the room inside the regeneration ventilation passage 21 to release moisture from the moisture absorption rotor 8, so that high humidity A configuration in which the humidified air is released into the room can be adopted.

[0054]

As described above, according to the present invention,
As a dew condensation preventing means, a bypass path is provided in the regeneration ventilation path connecting the upstream side and the downstream side of the moisture absorption rotor, and a part of the sucked room air is blown to the downstream side of the moisture absorption rotor through the bypass path to thereby achieve the regeneration ventilation. Since the high-humidity air that vents to the downstream side of the moisture absorption rotor is diluted,
Even if the temperature of the regenerative ventilation path decreases, dew condensation does not occur in the regenerative ventilation path, preventing water leakage, rust, mold, etc. into the equipment. Since the amount of moisture adhering to the wall surface decreases, the amount of humidification can be increased.

A regeneration area in which a part of the air flowing into the regeneration ventilation path is heated by the heating means and sent to the moisture absorbing rotor; and a regeneration area located upstream of the regeneration area with respect to the rotation direction of the moisture absorbing rotor. A non-heating area is provided for sending the remaining portion of the inflow air to the moisture absorbing rotor in a non-heated state, and the high humidity air sent from the regeneration area and the low humidity air sent from the non-heating area join after passing through the moisture absorbing rotor. As a result, it is possible to prevent dew condensation in the regeneration ventilation passage near the moisture absorbing rotor.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a conventional humidity controller.

FIG. 2 is a schematic configuration diagram showing an operation of the humidity controller during a dehumidifying operation.

FIG. 3 is a schematic configuration diagram showing an operation of the humidity controller during a humidifying operation.

FIG. 4 is a schematic configuration diagram showing an operation of the humidity controller during a ventilation operation.

FIG. 5 is a schematic configuration diagram of a humidity controller showing a first embodiment of the present invention.

FIG. 6 is a schematic configuration diagram showing an operation during a humidification operation in FIG.

FIG. 7 is a cross-sectional view of a regeneration ventilation passage and a moisture absorption ventilation passage showing a second embodiment of the present invention.

8 is a longitudinal sectional view of a regeneration ventilation passage and a moisture absorption ventilation passage in FIG. 7;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 First indoor air inlet 2 Second indoor air inlet 3 First indoor air outlet 4 First outdoor air outlet 5 First outdoor air inlet 6 Second indoor air outlet 7 Regeneration heater 8 Moisture absorbing rotor 9 Motor REFERENCE SIGNS LIST 12 switching damper 13 bypass path 14 regeneration area 15 moisture absorption area 16 non-heating area 20 moisture absorption ventilation path 21 regeneration ventilation path 22 rotating shaft 23 outdoor ventilation path

Claims (6)

[Claims] 1. A rotary type moisture absorbing rotor for adsorbing moisture contained in air and releasing the adsorbed moisture by heated air, a moisture absorbing ventilation passage for adsorbing moisture to the moisture absorbing rotor, and removing moisture from the moisture absorbing rotor. A dehumidifier provided with a regeneration ventilation path to be detached, wherein the moisture absorption rotor is disposed over the moisture absorption ventilation path and the regeneration ventilation path, and a dew condensation preventing means for preventing dew condensation of moisture in the regeneration ventilation path is provided. A humidity controller characterized by that. 2. The humidity controller according to claim 1, wherein said dew-condensation preventing means removes moisture from the moisture-absorbing rotor and joins low-humidity air to high-humidity air. 3. The dew condensation preventing means includes a bypass path connecting the upstream side and the downstream side of the moisture absorbing rotor in the regeneration ventilation path, and removes moisture from the low humidity air passing through the bypass path and the moisture absorbing rotor. The humidity controller according to claim 1, wherein the air with high humidity is joined with the air. 4. A regeneration area for heating a part of the air flowing into the regeneration ventilation passage and sending it to the moisture absorbing rotor by heating means provided on a part of the regeneration ventilation passage cross section, A non-heated area is formed in which the remainder of the inflowing air is sent to the moisture absorbing rotor in a non-heated state, and the high humidity air sent out from the regeneration area and the low humidity air sent out from the non-heated area merge after passing through the moisture absorbing rotor. The humidity controller according to claim 1, wherein the humidity control is performed. 5. The humidity controller according to claim 4, wherein the regeneration area is disposed downstream of the non-heating area with respect to the rotation direction of the moisture absorbing rotor. 6. The dew-condensation preventing means forms a supporting portion that supports an adsorbent that adsorbs moisture on a moisture absorbing rotor and a non-supporting portion that does not support an adsorbing material, and passes through the supporting portion to increase humidity. The humidity controller according to claim 1, wherein the air that has passed and the low-humidity air that has passed through the non-supporting portion merge after passing through the moisture absorption rotor.