JPH0739873B2 - Dry dehumidifying / humidifying device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a household or industrial dry dehumidifying / humidifying device.

[Prior Art] Conventionally, as air conditioners used at home or in the industry, there are a humidifier, a dehumidifier, and a dehumidifier.

Briefly explaining the above device, as the humidifying device, for example, a device for supplying ultrasonic vibration to water to forcibly supply water molecules into the air, and supplying air to a filter wet with water to supply humidified air. And a device for heating water to humidify it as steam, a device for blowing out water in a spray form to humidify it, and the like.

However, in any of the above humidifiers, in any case, water can be directly supplied by tap water, or
It is necessary to refill the water tank.

In particular, when replenishing water into the device from a water tank, the water in the tank may rot and bacteria may grow in the tank.

Therefore, when the device is started to be used again, the above-mentioned contaminated water is supplied to the room,
There is a problem with health and hygiene.

The dehumidifying device is (a) a dehumidifying device that collects indoor moisture as dew in a cooler and collects it in a moisture state. (B) A dehumidifier that attaches a dehumidifying agent to paper and absorbs water. (C) A dehumidifying device in which a dehumidifying material is annularly arranged and rotated to continuously perform regeneration and dehumidification can be given.

However, the above device has the following problems.

That is, in the dehumidifying device of (a), the indoor moisture is collected by using a cooler as dew, but when the cooling fin temperature becomes 0 ° C. or less, the indoor moisture is overcooled and the cooler is in a frosted state. There is a problem that the dehumidification efficiency is reduced due to the adhesion, and if the water receiver of the dehumidified water becomes full, it takes time and effort to discard the water.

Further, in the dehumidifier (b), the dehumidifying capacity of the dehumidifying material cannot be regenerated, so that there is a problem that if the dehumidifying capacity is lost, the dehumidifying material must be replaced with a new one.

In the dehumidifying device of (c), as shown in FIG. 4, the dehumidifying material is arranged in a cylindrical pipe 41 which is separately provided as a cylindrical shape,
Rotate.

A regeneration chamber 42 and a processing chamber 43 are provided in the cylindrical tube 41, and the boundary between these chambers is sufficiently sealed so that air does not leak.

In the regeneration chamber 42 and the treatment chamber 43, a regeneration air passage 47 for the solid adsorbent and a treatment air passage 48 are provided so as to communicate with each other. Is flowing.

Further, the cylindrical solid adsorbent is rotated by the drive motor 44 so that the solid adsorbent can be continuously regenerated and the dry air can be supplied.

In the dehumidifying apparatus as described above, the regeneration chamber 42 and the processing chamber 43 are sufficiently sealed, and the drive motor 44 is required in order to constantly rotate the solid adsorbent,
The structure of the apparatus itself becomes complicated, and since the inside of the cylindrical tube is used as a regeneration chamber and a processing chamber, it is difficult to make the apparatus compact.

Further, as a conventional dry dehumidifying / humidifying device, Japanese Patent Laid-Open No. 57-2077
Although there is a device as proposed in Japanese Patent Publication No. 33, this device requires water for humidification, and thus requires piping equipment, and has a configuration similar to the dehumidifier of (c). Therefore, it is impossible to make it compact because the structure is complicated, such as installing a drive motor and sealing the regeneration chamber and the processing chamber. Therefore, there is a problem that it cannot be applied in a narrow space.

[Problems to be Solved by the Invention] The present invention solves all the problems of the conventional dehumidifying device, the humidifying device, and the dehumidifying / humidifying device as described above, and does not require replenishment of water during humidification. At the time of dehumidification, the purpose was to provide a very compact dry dehumidifying / humidifying device which can discharge dehumidified water as humidified air to the outside of the room and can be applied even in a narrow closed space.

[Means for Solving Problems] The present invention relates to a casing provided with an outdoor air inlet, an outdoor air outlet, an indoor air inlet and an indoor air outlet, and the outdoor air inlet. A common part through which air from the inlet or air from the intake of the indoor air passes in common, and a part branched from the common part to the outlet side of the outdoor air and the outlet side of the indoor air, When the air passage formed in the casing consisting of, the inlet for the outdoor air, the air passage and the outlet for the outdoor air are in communication with the outside, the inlet for the indoor air and the air When the passage and the indoor air outlet are not in communication with the room, and the outdoor air inlet and the air passage and the outdoor air outlet are not in communication with the outside, the indoor air intake is Entrance and the sky An opening / closing means for an air passage that brings the passage and the discharge port of the room air into communication with each other, a solid adsorbent disposed in the common portion, and an upstream side of the solid adsorbent in the common portion. Arranged heating means for heating the air from the outdoor air inlet or the air from the indoor air inlet, and for introducing the outdoor air into the casing from the outdoor air inlet A dry dehumidifying / humidifying device is characterized in that it has an air blowing unit and another air blowing unit for introducing the indoor air into the casing from the indoor air intake.

[Operation] In the present invention, the adsorbent is arranged in the flow path so that the adsorbent can be humidified or dehumidified, and means for exchanging the moisture of the adsorbent with the outdoor air or the indoor air passing through the adsorbent is provided. ing. For example, when dehumidifying the room, for example, when the room air intake, the air passage, and the room air discharge port are in communication with the room, the room air is discharged through the room air intake, for example, in a metal casing. Then, the indoor air is made to flow through the air passage in the casing by a blowing unit, for example, a blowing fan, reaches the indoor air discharge port, and is supplied to the room through the indoor air discharge port.

At this time, the room air passes through the solid adsorbent provided in the air passage without being heated, and the moisture in the room air is adsorbed by the solid adsorbent, and is supplied to the room as dry air. It

If the indoor air intake, the air passage, and the indoor air discharge port are not in communication with the room, and the outdoor air intake and the outdoor air discharge port are in communication with the outside, the outdoor air from the outdoor air intake port Is taken into the casing and the outdoor air is heated.

The heated air is blown by a blower provided in the air passage, for example, a blower fan, reaches the outdoor air discharge port, and is discharged to the outside through the outdoor air discharge port. By passing the heated outdoor air through the solid adsorbent provided in the passage, the water adsorbed in the solid adsorbent in the above process,
It is separated by the heated outdoor air and discharged to the outside through the outdoor air discharge port.

That is, the present invention is intended to keep the dehumidification state in a room substantially constant by alternately performing the above-described processes when the device of the present invention operates as a dehumidification device.

Further, when humidifying the room, the outdoor air intake, the air passage, and the outdoor air discharge port are in communication with the outside, and the outdoor air enters the casing through the outdoor air intake, and the outdoor air is The air passage in the casing is blown by an air blower, for example, a blower fan, reaches the outdoor air discharge port, and is discharged to the outside through the outdoor air discharge port.

At this time, the outdoor air passes through the solid adsorbent provided in the air passage, the moisture in the outdoor air is adsorbed by the solid adsorbent, and the moisture is temporarily kept in the solid adsorbent.

Next, the outdoor air intake, the air passage, and the outdoor air discharge port are not in communication with the outside, and the indoor air intake, the air passage, and the indoor air discharge port are in communication with the room. Taking in indoor air into the casing through the inlet and heating means, for example, using a heater,
The room air is heated.

The heated air is blown by a blower provided in the air passage, for example, a blower fan, reaches the indoor air discharge port, and is supplied to the room through the indoor air discharge port.

At this time, since the heated indoor air passes through the solid adsorbent provided in the air passage, the water adsorbed in the solid adsorbent in the above-described process is heated this time. The air is released by the indoor air, and as a result, sufficiently humidified air is supplied to the room through the indoor air discharge port.

That is, when the device of the present invention is operated as a humidifying device, the process described above is alternately performed so as to always keep the indoor humidity substantially constant.

As described above, the dehumidifying / humidifying device of the present invention operates as a dehumidifying device or a humidifying device by switching a control circuit built in the device, for example, a switch of a sequencer. In addition, as a method of intake and exhaust of the outdoor air and operation of intake and exhaust of the indoor air when operating as a dehumidifying device or a humidifying device, that is, in order to alternately perform the above process, adjustment of the flow path in the air passage is performed. For example, a damper may be installed in each of the indoor air intake port and the air passage, although not limited thereto.

In FIGS. 3A and 3B, which will be described in detail in the embodiments to be described later, a damper 4 may be arranged in the indoor air intake 2 and a damper 6 may be arranged in the air passage. In the above case, the dampers provided are mechanically interlocked with each other to open and close at the same time.

Alternatively, dampers may be installed as opening / closing means at each air intake port and each air discharge port.

In the above case, the dampers provided at the outdoor air intake port and the outdoor air discharge port are electrically or mechanically interlocked with each other to open and close at the same time. Similarly, the dampers provided at the indoor air intake port and the indoor air discharge port are opened and closed at the same time.

In addition, when using the device of the present invention, for example, an indoor humidity sensor is separately provided and electrically linked with the device of the present invention. When the device of the present invention is used as a humidifying device, setting of the indoor humidity sensor is performed. When the indoor humidity exceeds the humidity, a stop signal for stopping the device works on the control circuit in the device to stop the device.

Further, when using the device of the present invention as a dehumidifying device, if the indoor humidity is below the set humidity of the humidity sensor,
A signal for stopping the device acts on a control circuit in the device, and the device stops.

Therefore, until the stop signal is sent from the sensor, the device operates according to the casing stored in the control circuit when functioning as a dehumidifier, and similarly when functioning as a heating device. It operates according to the sequence stored in the control circuit.

In the present invention, various changes can be made, and opening / closing means for opening / closing the outdoor air intake and the indoor air intake, for example, a damper also serving as the opening / closing of the outdoor air intake and the indoor air intake. Opening and closing means that is installed and also serves to open and close the outdoor air outlet and the indoor air outlet,
For example, it is possible to install the damper to open and close the outdoor air outlet and the indoor air outlet.

Further, in the present invention, for example, a blower fan may be provided as a blower unit at a position where the blower can be blown well, and the number and the place of arrangement thereof are not limited.

In addition, for example, a heater as a heating unit is arranged so as to be located upstream of the adsorbent in the air passage in the casing.

When the device of the present invention is used as a dehumidifier, indoor air may be introduced as air to regenerate the solid adsorbent, and in that case, the outdoor air discharge port, the air passage, and the indoor air intake port. And are in communication with the indoor and outdoor, and the indoor air discharge port, air passage and outdoor air intake are not in communication with the outdoor and indoor, the indoor air is heated and blown through the solid adsorbent, and the solid adsorption A control circuit that absorbs moisture in the material and discharges it as humidified air from the outdoor air outlet may be assembled.

That is, in the present invention, various control circuits suitable for various applications are possible, and the operation and stop of the opening / closing means, the heating means, and the blowing means are set by this circuit in accordance with the necessary conditions. It is possible.

In addition, the room described in the present invention also refers to a space where living things requiring human humidity control, exhibits, and the like exist in addition to human living spaces.

Furthermore, in the present invention, if a solid adsorbent as shown below is used, adsorption and desorption of water can be performed more easily.

I.e., the Si source containing more than 70% in terms of SiO _2, or the Si source in terms of SiO ₂ of 30% or more, may be used a solid adsorbent containing chloride 40% or less.

The adsorbent will be described in detail below.

(Si Source) FIG. 1 shows the relationship between the moisture absorption amount and the SiO ₂ amount obtained by converting the silica gel content into SiO ₂ when using silica gel as the Si source.

As shown in FIG. 1, when the content of the Si source is changed to 70% or more by replacing SiO ₂ , the moisture absorption amount is significantly improved.

The moisture absorption amount in the experiment shown in FIG. 1 was measured using a colloidal alumina as a binder and a honeycomb-shaped molded body having a size of 50 × 50 × 50 mm as shown in FIG. The amount of moisture absorption was obtained by allowing the sample to stand for 24 hours in an atmosphere of 30 ° C. and 80% relative humidity and changing the weight of the test piece before and after the experiment.

In the above experiment, silica gel was used as the Si source, but as the Si source, silica sand, silica stone zeolite,
It can be arbitrarily selected from diatomaceous earth, silicate clay, shirasu, porous glass, silica gel and the like.

In particular, silica gel is advantageous in terms of performance and economy.

The above Si source is available as a granular material.

(Chloride) In addition, the present inventor also added 40% or less of chloride to a material containing 30% or more of Si source in terms of SiO ₂ ,
We have found that the moisture absorption capacity can be significantly improved.

That is, by containing 40% or less of chloride in the material, droplets of the chloride aqueous solution do not occur on the surface of the hygroscopic material, there is no problem of corrosion due to droplets, and the performance of the dehumidifying material is maintained for a long time. It was also possible.

Examples of chlorides include lithium chloride and calcium chloride, and lithium chloride is particularly preferable from the viewpoint of economy.

That is, although silica gel itself is known as an excellent moisture adsorbent, it has a drawback that its adsorption performance is low when the air used has low humidity. Therefore, in order to maintain a high adsorption capacity even when the air humidity is low, it is useful to contain chloride as a means for improving the adsorption performance within the above range, and it is particularly industrially used. The inclusion of lithium chloride is preferable from an economical point of view.

In order to contain chloride in the material, for example, the material may be molded into a desired shape, and after molding, a dried and / or fired molded body may be impregnated with an aqueous solution of chloride and dried.

The method of impregnating the above-mentioned chloride aqueous solution is not limited, and a conventional method may be used.

The method described above, after obtaining the porous silica molded body,
A method of supporting chloride on this molded body is as follows.
Chloride may be added from the time of kneading and then molding may be performed.

Further, as the other component of the solid adsorbent, there is a binder, and the binder used here is not particularly limited as long as it exhibits a binder function for powder. It is possible to use.

Typical organic binders are MC and CM
C, starch, CMS (carboxymethyl starch), HEC
(Hydroxyethyl cellulose), HPC (hydroxypropyl cellulose), sodium lignin sulfonate,
Examples include calcium lignin sulfonate, polyvinyl alcohol, polyacrylic acid ester, phenol resin, melamine resin, and the like, as the inorganic binder, for example, colloidal silica, colloidal alumina,
Examples thereof include colloidal titanium, silicate, metal alkoxide, bentonite, kaolinite, sepiolite, attapulgite, aluminum phosphate and the like.

It should be noted that these binders may be used in combination of two or more if necessary.

[Examples] Hereinafter, the present invention will be specifically described with reference to Examples.

FIG. 3 is an explanatory view showing a dehumidifying / humidifying device according to the present invention.

In FIG. 3, reference numeral 1 is a metal casing, and an air passage is formed inside the casing 1.

The casing 1 is provided with an indoor air intake 2 and an indoor air discharge port 3, and the air intake 2 is provided with a damper 4 for opening and closing. Mechanically interlocked with a damper 6 that also opens and closes the air passages of the air outlet 3 and the outdoor air outlet 5, and is operated by a drive motor (not shown).

A blower fan 7 is installed in the air passage between the indoor air discharge port 3 and the damper 6, and is used for blowing indoor air.

Reference numeral 8 denotes an outdoor air intake, and the outdoor air is blown by a blower fan 9 provided in the vicinity of the outdoor air intake.
It is introduced into the casing 1. 10 is a heater provided in the air passage, and 11 is a solid adsorbent made of silica gel.

The dehumidifying / humidifying device configured as described above can easily switch the functions of dehumidifying and humidifying with a switch (not shown) provided on the front surface of the casing 1, and as shown in FIG. For example, when the humidity is lower than the set humidity of a separately provided humidity sensor (not shown), the device is stopped by an electric signal from the humidity sensor.

When the indoor humidity becomes higher than the set humidity, the device, which receives an electric signal from the humidity sensor, is turned on as shown in FIG. 5 and starts to operate. The dampers 4 and 6 are in the positions shown by the solid lines, and the intake 2 for the indoor air
The air passage and the indoor air discharge port 3 are in communication with the room, the blower fan 7 operates, and the indoor air is introduced into the casing 1 through the air intake port 2. The room air flows through the air passage and passes through the solid adsorbent 11. The solid adsorbent 11 absorbs moisture in the indoor air, and then the absorbed indoor air is supplied to the room through the indoor air discharge port 3.

A control circuit (not shown) equipped with a timer activates the dampers 4 and 6 after 7 minutes as shown in FIG. 5, and the positions become the dotted lines in FIG. 3, respectively. The air passage and the outlet 5 for the outdoor air are in communication with the outside, and the heater 10 operates.

That is, after 7 minutes have elapsed, the blower fan 7 is stopped and the blower fan 9 is operated in reverse, so that the outdoor air is taken into the casing 1 through the outdoor air intake port 8.

The outdoor air flows through the air passage, becomes a warm air of the outdoor air temperature + 40 ° C. by the heater 10, and passes through the solid adsorbent 11. At this time, the moisture adsorbed on the solid adsorbent 11 in the previous process is separated from the solid adsorbent 11 by the warm air, and as a result, the solid adsorbent 11 is regenerated.

The moisture absorbed by the solid adsorbent 11 flows through the air passage and is discharged from the inside of the casing 1 to the outside of the room through the outlet 5 for the outdoor air.

The above state is maintained for 3 minutes by the control circuit equipped with the timer, and if the indoor humidity is lower than the humidity set by the humidity sensor, this device should stop by receiving the stop signal from the humidity sensor. Becomes

On the contrary, when the room air is higher than the humidity set by the humidity sensor, the control circuit equipped with the timer operates, the dampers 4 and 6 return to the positions indicated by the solid lines, and the heater 10 stops operating. The blower fan 9 is also stopped, and the blower fan 7 starts operating, so that dry air is supplied into the room.

As described above, the dehumidifier of the present invention keeps the indoor humidity constant by repeating the indoor supply of dry air and the regeneration of the solid adsorbent.

Next, if this device operates as a humidifying device and the indoor humidity is lower than the set temperature of the humidity sensor, this device will be in the ON state as shown in FIG. 5 and start operating. The dampers 4 and 6 are located at the positions indicated by the dotted lines, the outdoor air intake port 8 and the air passage and the outdoor air discharge port 5 are in communication with the outside air, and the blower fan 9 is activated to take the outdoor air air. It is introduced into the casing 1 through the inlet 8. This outdoor air flows through the air passage and passes through the solid adsorbent 11. The solid adsorbent 11 absorbs moisture in the outdoor air, and then the dried outdoor air is discharged to the outside through the outdoor air discharge port 5.

A control circuit (not shown) equipped with a timer activates the dampers 4 and 6 after 3 minutes, as shown in FIG. 6, to the positions shown by the solid lines in FIG. The air passage and the indoor air discharge port 3 are in communication with the room, and the heater 10 operates.

That is, after the lapse of 3 minutes, the blower fan 9 is stopped and the blower fan 7 is operated in reverse, so that the room air is taken into the casing 1 through the room air intake 2.

The room air flows through the air passage, becomes warm air of room temperature + 40 ° C. by the heater 10, and passes through the solid adsorbent 11. At this time, the moisture adsorbed on the solid adsorbent 11 in the previous process is separated from the solid adsorbent 11 by the warm air, and as a result, the solid adsorbent 11 is regenerated.

The room air containing the moisture absorbed by the solid adsorbent 11 is
As humidified air, it flows through the air passage and discharges indoor air 3
It is supplied indoors from inside the casing 1 via.

The above state is maintained for 7 minutes by the control circuit equipped with the timer, and if the indoor humidity is lower than the humidity set by the humidity sensor, the present apparatus repeats the above process.

On the contrary, when the indoor humidity is higher than the humidity set by the humidity sensor, the apparatus stops.

The specifications of the apparatus of the present invention are as follows: power supply: 100 V, indoor circulating air volume: 60 m ³ / hr, outdoor circulating air volume: 30 m ³ / hr, heater electric capacity: 300 W, solid adsorbent dimensions: 60 ^w mm x 130 ^L mm × (silica gel 50 ^H mm (390 cc) honeycomb size) Device size: 466 ^w mm × 270 ^L mm × 111 ^H mm Dehumidification and humidification conditions in a 3 m ³ closed chamber of the above device were investigated.

FIG. 7 and FIG. 8 are the results of investigations when the device of the present invention was used in the closed chamber.

That is, as shown in FIG. 7, when the device of the present invention was used as a dehumidifying device, when the outdoor temperature was 24 ° C. × 65% RH, the indoor humidity was 93% before the device started, and after 40 minutes. Is 6.0
%, Showing a good dehumidifying effect.

Further, as shown in FIG. 8, when the device of the present invention was used as a humidifying device, when the outdoor temperature was 24 ° C. × 65% RH, the indoor humidity was 22% before the operation of the device. It was 93%, showing a good humidifying effect.

[Effects of the Invention] As described above, according to the present invention, during dehumidification,
Since it is possible to discharge the moisture generated by dehumidification to the outside as humidified air, it is not necessary to treat dehumidified water droplets, and when humidifying, no water is required and good humidification is possible. Yes, it can also be a very compact device.

[Brief description of drawings]

FIG. 1 is a diagram showing the relationship between the amount of moisture absorption and the amount of SiO ₂ obtained by converting the silica gel content into SiO ₂ when using silica gel as the Si source, and FIG. 2 was used for the above FIG. 1. It is a figure which shows a honeycomb-shaped molded object. FIG. 3 is an explanatory view of the dry dehumidifying / humidifying device of the present invention. Fourth
The figure is a schematic view of a conventional rotor-type dehumidifier. Fifth
FIG. 6 and FIG. 6 are sequence diagrams of the device of the present invention,
7 and 8 are diagrams showing the results of the investigation of the function of the device of the present invention. DESCRIPTION OF SYMBOLS 1 ... Casing, 2 ... Indoor air inlet, 3 ... Indoor air outlet, 4,6 ... Damper, 7,9 ... Blower fan, 8 ... Outdoor air inlet, 10 ... Heater, 11 ... Solid adsorbent 5 ... Outdoor air outlet, 41 ... Cylindrical tube, 42 ... Regeneration chamber, 43 ... Processing chamber, 44 ... Drive motor, 45 ... Filter, 46 ... Heater, 47 ... Regeneration air passage, 48 ... Treatment air passage.

Claims (4)

[Claims] 1. A casing provided with an outdoor air intake port, an outdoor air discharge port, an indoor air intake port and an indoor air discharge port, and air from the outdoor air intake port or the indoor air port. It is formed in the casing consisting of a common part through which air from the intake passes in common, and a part branched from the common part to the outlet side of the outdoor air and the outlet side of the indoor air. An air passage, when the outdoor air intake, the air passage, and the outdoor air outlet are in communication with the outside, the indoor air inlet, the air passage, and the indoor air outlet Is not in communication with the room, and when the intake of the outdoor air, the air passage and the outlet of the outdoor air are not in communication with the outside, the intake of the indoor air, the air passage and the indoor air Outlet of An opening / closing means of an air passage for communicating the interior of the room, a solid adsorbent arranged in the common part, and an outside air arranged in the common part upstream of the solid adsorbent. Heating means capable of heating air from the intake port or air from the indoor air intake port, blowing means for introducing outdoor air into the casing from the outdoor air intake port, and the indoor air intake Another blowing means for introducing indoor air into the casing from an inlet, and a dry dehumidifying / humidifying device. 2. The solid adsorbent has a Si source of 70% in terms of SiO _2.
Contains more than (equal to or less than wt%) or Si
The dry dehumidifying / humidifying device according to claim 1, wherein the source contains 30% or more in terms of SiO ₂ and 40% or less of chloride. 3. The dry dehumidifying / humidifying device according to claim 2, wherein the chloride is lithium chloride. 4. The dry dehumidifying / humidifying device according to any one of claims 1 to 3, wherein the solid adsorbent is a silica gel having a honeycomb shape.