JPH01291023A - Batch type humidity controlling device - Google Patents

Abstract

PURPOSE:To humidity or dehumidify the indoor air with a high efficiency without mixing dehumidified air with highly humidified high temperature air by alternately passing the indoor air and outdoor air through a case and, when, for example, the indoor air is dehumidified, by energizing the heater while outdoor air is passed and passing the heated outdoor air through solid moisture adsorbent. CONSTITUTION:A heater 23 is energized while outdoor air is passed through a case 11. The outdoor air is heated, for example, to temperatures in the range of 80 deg.C to 90 deg.C and, after a rise of the partial pressure of water vapor, passed through solid moisture adsorbent 24 so that the passage of the outdoor air causes the moisture contained in the solid moisture adsorbent 24 to be released and exhausted in the form of highly humidified high temperature air into the outside through an outlet 15. After the execution of the reclamation of the solid moisture adsorbent 24 by means of outdoor air for a certain period of time, indoor air is let into the case 11 and passed through the solid moisture adsrobent 24. The heater 23 is not energized while indoor air is passed, that is, the indoor air passes through the solid moisture adsorbent 24 at room temperature so that the passage enables the solid moisture adsorbent 24 to adsorb the moisture in the indoor air, thus resulting in dehumidification of the indoor air.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a batch type humidity control device that dehumidifies and humidifies indoor air using a dry solid adsorbent.
The present invention relates to a batch type humidity control device suitable for controlling the humidity of a freezer or the like maintained at 0° C. or lower.

[Prior Art] FIG. 4 is a schematic perspective view showing a conventional dry dehumidifier for cold air and room temperature. The dehumidifying rotor 1 is formed, for example, into a honeycomb shape using a solid adsorbent, and has a cylindrical shape with communication holes extending in the thickness direction, and is installed with its central axis horizontal. This dehumidifying rotor 1 is operated by a motor (not shown).
It is driven to rotate around its central axis in two directions indicated by arrows.

The dehumidifying rotor 1 is divided into a moisture absorbing zone (processing zone) 3 covering, for example, a 37/4 area of its surface, and a moisture removing zone (regeneration zone) 4 covering the remaining 1/4 area,
Seats fixedly arranged on both flat sides of the dehumidifying rotor 1
The air passages through which the air passes through both zones 3 and 4 are individually formed by the grooves 5 .

A blower fan 7 is connected to the processing zone 3 via piping 6.
air containing a large amount of moisture indoors is supplied, this humid air passes through the processing zone 3 of the dehumidifying rotor 1, where the moisture is collected, and dried air is discharged from the processed air outlet side. . This dry air is supplied indoors.

On the other hand, outside air is introduced into the regeneration zone 4 by a blower fan 9 through a pipe 8, heated by a heater 10, and then supplied. This heated air has a large saturated moisture content ζ′, and the moisture contained in the dehumidifying rotor 1 is separated and becomes moisture-draining, high-volume air that is discharged from the regeneration air outlet side. Exhausted outdoors.

Since the dehumidifying rotor 1 rotates continuously in the direction of the arrow 2, the honeycomb-like adsorbent of the dehumidifying rotor 1 dehumidifies the treated air (moisture adsorption) and regenerates the regenerated air (moisture desorption). Repeat alternately and continuously.

As a result, dry air is supplied from the outlet on the processing zone 3 side, and humid air is discharged from the outlet on the regeneration zone 4 side.

Furthermore, Japanese Utility Model Application No. 63-28115 discloses a batch type dehumidification device. In this device, the first gas passage and the second gas passage are arranged with the regeneration gas passage in between, and when the air in the room to be dehumidified is returned to the room via the first gas passage, A dehumidifying element disposed in the first gas passage dehumidifies the circulating air, and the second gas passage is supplied with outside air heated by a heater to regenerate the dehumidifying element disposed in the second gas passage. The used outside air is returned to outside air via the regeneration gas passage. Conversely, when the air dehumidified by the dehumidifying element disposed in the second gas passage is returned to the dehumidified interior, the dehumidifying element in the first gas passage is regenerated by heated outside air. By repeating this process alternately, the interior of the room to be dehumidified is dehumidified.

[Problems to be Solved by the Invention] However, in the above-mentioned rotating drum type dry dehumidifier, seals 5 (only one seal 5 is shown in FIG. 4) are provided on both end surfaces of the dehumidifying rotor 1 in the air flow direction. )
Although the processing zone 3 and the regeneration zone 4 are separated by a dehumidifying rotor 1, it is actually difficult to completely separate the processing air and the regeneration air using a mechanical seal in the dehumidifying rotor 1. Therefore, from the processing zone 3 side to the regeneration zone 4 side, or vice versa, from the regeneration zone 4 side to the processing zone 3 side.
There is an air leak to the side. In particular, if the regeneration air leaks from the regeneration zone 4 side to the processing zone 3 side, high temperature regeneration air will flow into the processing zone 3, making it difficult to obtain air with a low dew point.

In addition, since this rotating drum type device uses a rotationally driven dehumidifying rotor, the diameter of the dehumidifying rotor is extremely large, and the rotating sliding part needs to be sealed for treated air and regenerated air. This results in a complex and precise mechanism, which has significant disadvantages in terms of manufacturing costs and maintenance.

Furthermore, when installing such a device inside a narrow box such as a container for storing items used in low-temperature ranges, rotor-type dehumidifiers have a large dead space, so there is a huge amount of wasted space. Become.

On the other hand, in the above-mentioned batch type dehumidifier, it is necessary to provide a large fan that occupies the entire cross section of the gas passage in order to uniformly circulate air through each gas passage. For this reason, the entire device becomes large, and such a device cannot be installed in a small space such as a freezer. Furthermore, in this prior art, since the heater is disposed upstream of the fan, hot air is supplied to the fan, which causes significant deterioration of the fan. In addition, it is necessary to provide a regeneration gas passage, which makes maintenance of the device difficult and also reduces production efficiency.

The present invention has been made in view of such problems, and includes:
Batch-type humidity adjustment that avoids mixing between recycled air and processed air, allows for highly efficient dehumidification or humidification of indoor rooms, and has a simple structure that allows for miniaturization and thinning, making maintenance easy. The purpose is to provide equipment.

[Means for Solving the Problems] A batch type humidity control device according to the present invention includes a case divided into a first and second room, and a case arranged at the boundary between the first room and the second room. a blowing means for supplying gas from the first room to the second room by passing the gas in a direction substantially perpendicular to the direction from the first room to the second room;
an outdoor air intake port and an indoor air intake port provided in the case in the first room; an outdoor air outlet and an indoor air outlet provided in the case in the second room; an intake opening/closing member that alternately opens and closes the outdoor air intake and the indoor air intake; a discharge opening/closing member that alternately opens and closes the outdoor air outlet and the indoor air outlet; and the second It is characterized by having a heater provided in a room, and a moisture absorbing material provided in the second room downstream of the heater in the gas flow direction.

[Operation] In the present invention, when the outdoor air intake port of the first room and the outdoor air phase outlet port of the second room are opened, and the indoor air intake port and the exit port of the second room are closed, the first Outdoor air flows into the room from the intake port, is further sent to the second room by the blowing means, passes through the heater and moisture absorbing material disposed in the second room, and is discharged to the outside from the discharge port. be done. On the other hand, the first
When the indoor air intake of the room and the indoor air outlet of the second room are opened, and the outdoor air intake and outlet of the second room are closed, the indoor air is drawn from the first room to the second room by the ventilation means inside the case. This indoor air is circulated and supplied into the room through the heater and moisture absorbing material in the second room.

In this case, the blowing means is disposed at the boundary between the first room and the second room, and once flows the gas in a direction substantially perpendicular to the direction from the first room to the second room. Since the gas is sent from the first room to the second room in the case, the blowing means can be made smaller than when the gas is directly sent from each intake port side to each discharge port side within the case. , gas can be uniformly passed through the case. Therefore, the case can be made thinner.

Then, the flow of outdoor air into the case and the flow of indoor air into the case are repeated alternately, and by driving the heater at appropriate timing, the room is dehumidified or humidified.

In other words, for example, while outdoor air is flowing through the case, if you drive the heater to heat the outdoor air and then pass it through a moisture absorbing material, this outdoor air will absorb moisture from the moisture absorbing material and become highly charged. Afterwards, when the indoor air passes through the moisture absorbing material, the indoor air is dried (dehumidified) and then supplied indoors. Therefore, the room is dehumidified. In addition, the outside air is always used to dry the moisture absorbing material.

On the other hand, when indoor air is flowing through the case, the heater is driven to heat the indoor air, and then it is passed through a moisture absorbing material, and this indoor air absorbs the moisture in the moisture absorbing material and becomes humid air. Supplied indoors. Consequently, the room is humidified. Note that the outside air always replenishes moisture to the moisture absorbing material.

[Example] Hereinafter, an example of the present invention will be specifically described with reference to the accompanying drawings.

FIGS. 1(a) and 1(b) are a side sectional view and a front sectional view, respectively, showing a humidity adjusting device according to an embodiment of the present invention. Inside the case 11, a first chamber A is formed on the upstream side in the air flow direction, and a second chamber B is formed on the downstream side. These first and second rooms form a flat space.

The first room A and the second room B are separated by partition plates 2 parallel to each other.
5.26, and a connecting plate 27 is provided between the partition plates 25 and 26.

The first room A has an indoor air intake 12, and the second room B has an indoor air outlet 13.

On the other hand, one side of the case 11 faces outdoors, and an outdoor air intake port 14 and an outdoor air outlet 15 are provided near both longitudinal ends of the side surface, respectively.

A shaft member 16 is rotatably installed in a part of the corner of the case near the income opening 12.14 with its axial direction aligned with the width direction of the case 11, and a damper 17 is mounted on this shaft member 16. The damper 17 opens one of the intake ports 12 or 14 and closes the other by rotating the shaft member 16.

Further, a shaft member 18 is similarly rotatably installed in a part of the corner of the case near the discharge port 13.15, with its axial direction aligned with the width direction of the case 11. A damper 19 is installed. Like the damper 17, this damper 19 also opens one of the discharge ports 13 or 15 and closes the other by rotating the shaft member 18.

Note that the surfaces of the dampers 17 or the intake port 1 that come into contact with each other
It is preferable to fix a sealing member such as rubber to at least one of the inner ends of the damper 17. This allows the damper 17 to close the intake ports 12 and 14 with high sealing performance.

Further, it is preferable to similarly fix the sealing member to the surface of the damper 19 or the inner ends of the discharge ports 13 and 15.

The shaft member 16 is reciprocated by a motor 20 at a center angle of about 90'', thereby causing the damper 17
rotates between the intake ports 12 and 14 as shown by the arrow. Also, the shaft member 18 is also rotated by the motor 21 by approximately 9
The damper 19 rotates back and forth at a center angle of 0°, which causes the damper 19 to move toward the discharge port 13 as shown by the arrow.
and the discharge port 15. The motors 20 and 21 are driven by a heater 23 (described later) by a control device (not shown).
It is controlled in conjunction with the drive of the

A blower fan 22 is disposed inside the case 11, and the blower fan 22 has its rotation axis parallel to the connecting plate 27, that is, perpendicular to the direction from the first room A to the second room B. Let it be installed. This blower fan 22
As a result, air flows from the first room A horizontally between the partition plates 25 and 26 and then is supplied to the second room B. Therefore, air flows inside the case 11 in the direction shown by the white arrow. A flow is formed.

A heater 23 is disposed downstream of the blower fan 22 in the air flow direction, and this heater 23 is powered by a suitable power source and generates resistance heat to heat the air flowing through the case. The driving of the heater 23 is controlled by the aforementioned control device.

Further, on the downstream side of the heater 23 in the air flow direction, a solid moisture absorbing material 24 is interposed throughout the air flow area.
is installed. This solid moisture absorbent material 24 is silica gel,
Zeolite, activated carbon, magnesium chloride, phosphorus pentoxide,
It may be formed using a substance that adsorbs moisture such as magnesium silicate and activated alumina. If this solid moisture absorbent material 24 is honeycomb-shaped, the air passage holes should be in the longitudinal direction of the case 11, that is, the air Of course, it is necessary to arrange the solid moisture absorbent material 24 so as to match the flow direction.

Next, the operation of the humidity adjusting device configured as described above will be explained together with the control mode of the control device.

First, regarding the dehumidification mode, Fig. 2 (a), (b) (C
) will be explained with reference to the time chart diagram.

The control device rotates the motors 20 and 21 in conjunction with each other,
When the outdoor air intake port 14 is opened by the damper 17, the outdoor air intake port 15 is also opened by the damper 19, and the indoor air intake port 12 and the discharge port 13 are closed. This results in
Inside the case 11, an intake port 14 is opened by a blower fan 22.
Outdoor air is introduced through the case 11 , flows through the case 11 in the direction of the white arrow, and then is discharged to the outside air through the discharge port 15 .

On the other hand, in the next period, the control device opens the indoor air intake 12 and outlet 13, and opens the outdoor air intake 14 and outlet 1.
Close 5. As a result, indoor air flows through the case 11 by the blower fan 22, and this indoor air is supplied into the room via the discharge port 13.

As shown in FIG. 2(c), the control device controls the heater 23 during the period when the outdoor type is flowing through the case 11.
As a result, the outdoor type is heated by the heater 23, and the temperature rises to, for example, 80 to 90°C, and after the water vapor partial pressure rises, it passes through the solid moisture absorbing material 24. As the solid moisture absorbing material 24 passes through the room, moisture contained in the solid moisture absorbing material 24 is released, and becomes hot and humid air, which is discharged outside the room through the discharge port 15.

After the solid moisture absorbent material 24 is regenerated for a certain period of time by the outdoor method in this manner, room air is introduced into the case 11 and passes through the solid moisture absorbent material 24 in the next period. During this introduction of room air, the heater 23 is not energized, and therefore,
Since the indoor air passes through the solid moisture absorbent material 24 while remaining at room temperature, the moisture contained in the indoor air is adsorbed by the solid moisture absorbent material 24 during that time, and the indoor air is dehumidified. For this reason, the indoor air is 10℃
Even if the moisture content is below, the moisture absorbing material described above can capture moisture in the air. Since this dry air is supplied indoors, the humidity in the room decreases. By alternately repeating this outdoor type introduction and indoor air introduction, the indoor air is dehumidified.

Next, the humidification mode will be explained with reference to the time charts of FIGS. 3(a), (b), and (c). Figure 3 (a
) and (b), indoor air and outdoor air are introduced alternately by the control device, similar to the dehumidification mode.

However, in this humidification mode, as shown in Fig. 3 (C
), the heater 23 is energized while the indoor air is flowing through the case 11, heating the indoor air and passing it through the solid moisture absorbing material 24. As a result, the indoor air has a high water vapor partial pressure. Since it passes through the solid moisture-absorbing material 24 containing moisture,
The air becomes hot and humid and is supplied indoors.

On the other hand, in the next period, while the outdoor type is flowing through the case 11, the power supply to the heater 23 is stopped, so the outdoor type passes through the solid moisture absorbing material 24 and is dehumidified, and then is discharged to the outside. be done. In other words, during the outdoor passage, the solid moisture absorption material 24 absorbs moisture in the outdoor air and becomes fully hygroscopic.

By alternately repeating this outdoor type introduction and indoor air introduction, the room is humidified.

Further, by appropriately adjusting the dehumidification mode period and the humidification mode period described above, the indoor humidity level is maintained at a predetermined humidity level.

Note that the present invention is not limited to the above-described embodiment, and various modifications are possible. For example, in the above-described embodiment, dedicated motors 2 are used to rotate the dampers 17 and 19, respectively.
0,21 was used, but the damper 17.19 can be interlocked by using one motor and connecting the shaft member 16.18 of the damper 17.19 and this one motor with a link or chain. It can be rotated by rotating.

[Effects of the Invention] According to the present invention, indoor air and outdoor air are introduced into the case alternately, and for example, when dehumidifying the room, the heater is driven while the outdoor air is being introduced. When heating indoor air and passing it through a solid moisture absorbing material to humidify a room, the heater is driven during the period when indoor air is being introduced to heat the indoor air and passing it through the solid moisture absorbing material.

Therefore, outdoor air and indoor air are alternately introduced into the solid moisture absorbent material, and unlike in the past, they do not pass through different passage areas at the same time, so hot humid air and dehumidified air are mixed. Since there is no moisture, it is possible to dehumidify and humidify the room with high efficiency.

In addition, since the first and second rooms are provided as a unit, maintenance is easy.Furthermore, the ventilation means provided at the boundary of these rooms can be effectively moved in the direction from the first room to the second room. Since the gas is sucked in the direction perpendicular to the direction, the blowing means itself can be downsized, and the entire case can therefore be made thinner. Therefore, when the device of the present invention is attached to a container or the like used in a low temperature range, the effective volume of the container can be increased.

[Brief explanation of the drawing]

FIGS. 1(a) and 1(b) are a side sectional view and a front sectional view showing a humidity adjusting device according to an embodiment of the present invention, respectively, and FIG.
) to (c) and FIGS. 3(a) to (c) are time charts showing control modes of the control device, and FIG. 4 is a schematic perspective view showing a conventional rotor type dehumidifier. 11; Case, 12, 14. Intake port, 13, 15; discharge port, 17, 19. Damper, 22; Fan, 23; Heater, 24; With solid moisture absorption

Claims (4)

[Claims] (1) A case divided into a first and second room, and a case divided into a first and second room.
The second room is disposed at the boundary between the first room and the second room, and the gas is once passed in a direction substantially perpendicular to the direction from the first room to the second room. an outdoor air intake and an indoor air intake provided in the case in the first room; and an outdoor air outlet provided in the case in the second room. an outlet and an indoor air outlet; an intake opening/closing member that alternately opens and closes the outdoor air intake and the indoor air intake; and an outlet that alternately opens and closes the outdoor air outlet and the indoor air outlet. A batch characterized in that it has an outlet opening/closing member, a heater provided in the second chamber, and a moisture absorbent material provided in the second chamber downstream of the heater in the gas flow direction. Humidity control device. (2) A control means for controlling the opening/closing of the intake port opening/closing member and the discharge port opening/closing member and the driving of the heater in an alternately interlocked manner according to an indoor dehumidification mode or a humidification mode. The batch type humidity control device described in . (3) The blowing means includes a passage through which gas flows in a direction substantially perpendicular to the direction from the first room to the second room, and a rotation axis of the passage within the passage that is aligned with the longitudinal direction of the passage. 3. The batch type humidity control device according to claim 1, further comprising a fan arranged in a manner that the humidity control device is cooled. (4) The batch type humidity control device according to claim 3, wherein the passage opens into the second room.