JPH05305215A - Absorption type dehumidifying apparatus - Google Patents

Abstract

PURPOSE:To provide an absorption type dehumidifying apparatus quietly removing humidity in air by low energy using a hydroscopic liquid in place of cooling type dehumidification. CONSTITUTION:In an absorption type dehumidifying apparatus, atmosphere open type upper and lower liquid sumps 10, 3 each receiving a moisture absorbing solution are provided and a flow-down type wet wall 11 is provided on the side of the space to be dehumidified between both liquid sumps and an absorbing solution transfer route transferring the adsorbing solution flowing down to the lower liquid sump 3 to the upper liquid sump 10 through a pump 5 and a band heater 6 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an absorption type dehumidifier.

[0002]

2. Description of the Related Art Hitherto, indoor dehumidification under high temperature and high humidity has been performed mainly by an air conditioner by lowering the indoor heat exchanger to a temperature below the dew point temperature of indoor air to cause dew condensation, and to make it flow down to drain water.

[0003]

The conventional cooling type dehumidification has the following problems to be solved.

That is, the conventional dehumidification by cooling in high temperature and high humidity has a dehumidifying effect, but has a problem that it is too dry. In addition, cooling during the rainy season is bad for the body, and since dehumidification is accompanied by cooling in any case, there is a problem that physical condition is likely to occur.

This tendency was particularly strong in the elderly.

Further, in the conventional dehumidification, since the temperature in the air is lowered to remove the water, there is a problem that the water evaporates abnormally from the skin of the person and the physical condition is likely to be caused from this point.

In order to solve the above problems, it is an object of the present invention to provide an absorption type dehumidifier which uses a hygroscopic liquid to remove moisture in the air with low energy and without noise.

[0008]

As a means for solving the above problems, the present invention is to provide an absorption type dehumidifying device described in (1) to (4) below. (1). Absorption that has an upper open reservoir and a lower reservoir that are open to the atmosphere and that contains an absorbing liquid that absorbs water, and a downflow type wetting wall is provided on the dehumidified space side between the two reservoirs and that flows down to the lower reservoir. An absorption type dehumidification device having an absorption liquid transfer path for transferring the liquid to an upper liquid reservoir via a pump and a heater. (2). The absorption type dehumidifier according to (1) above, wherein the absorbing liquid is polyalkylene glycol. (3). The absorption type dehumidifier according to the above (1), wherein a weir is provided in the upper liquid reservoir to sequentially supply the absorption liquid transferred through the heater to the wetting wall side. (4). The absorption type dehumidifier according to (1) above, which is provided with a temperature controller that detects the temperature of the absorption liquid at the upper liquid reservoir outlet and controls the heater.

[0009]

Since the present invention is constructed as described above, it has the following actions.

(1). In the configuration of the above (1), an atmosphere-open type upper liquid reservoir that stores an absorbing liquid that absorbs water,
A lower liquid reservoir is provided, and a downflow type wetting wall is provided on the side of the space to be dehumidified, and an absorption liquid transfer path for transferring the absorption liquid flowing down to the lower liquid reservoir to the upper liquid reservoir via a pump and a heater is provided. Since the absorbent is provided, it absorbs moisture in the air on the dehumidified space side while the absorbing liquid flows down the wetting wall.

Then, when the liquid flows down to the lower liquid reservoir and is transferred to the upper liquid reservoir open to the atmosphere via the absorption liquid transfer path via the pump and the heater, the absorbing liquid is heated midway. As a result, the temperature rises, and the water dissolved in the absorption liquid in the upper liquid reservoir evaporates into the atmosphere. The absorbing liquid flows down the wetting wall again and absorbs moisture in the air on the dehumidified space side. Such a cycle is repeated.

(2). In the structure of (2) above, since the polyalkylene glycol is used in the absorbing liquid of (1) above, the hygroscopic efficiency is high.

(3). In the configuration of (3) above, since the weir is provided in the upper liquid reservoir in the configuration of (1) above to sequentially supply the absorbing liquid transferred through the heater to the wetting wall side, it is heated. A turbulent flow is generated each time the absorbing solution passes through the weir sequentially, and the water content in the absorbing solution is efficiently evaporated due to the disturbing effect.

(4). In the configuration of (4) above, since the temperature controller that controls the heater by detecting the temperature of the absorption liquid at the upper liquid reservoir outlet in the configuration of (1) above is provided, when the absorption liquid temperature is too low, The evaporation rate of water can be increased by controlling the heating degree to be sufficient, and when it is too high, the heating rate can be decreased to increase the moisture absorption rate of moisture in the air. That is, the absorption liquid temperature can always be maintained at the optimum temperature.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG.

FIG. 1 is a schematic side view of an absorption type dehumidifier according to the present embodiment. In the figure, 1 is an indoor side that requires dehumidification, 2 is an outside air side for evaporating the water of an absorbing liquid, and 3 is an absorption side. A lower liquid reservoir 4 shows a state in which polyalkylene glycol used as an absorbing liquid is accumulated in the lower liquid reservoir 3. 5 shows transfer of the polyalkylene glycol 4 from the lower liquid reservoir 3 to the upper liquid reservoir 8. Pump, 6 is a band heater attached to a heat exchanger 7 for heating the polyalkylene glycol 4 from the lower liquid reservoir 3 toward the upper liquid reservoir 8 midway, 7 is a heat exchanger, and 8 is polyalkylene glycol. 4 is an upper liquid reservoir for releasing (evaporating) the water contained in 4 to the outside air side 2, 9 is an upper liquid reservoir 8 and the high temperature polyalkylene glycol 4 sent from the lower liquid reservoir 3 is directed to the wetting wall 11. It was set up to flow sequentially The number of weir 10 is an upper liquid reservoir provided on the indoor side 1, 11 lower liquid reservoir beneath the upper liquid reservoir 10 3
The impregnated felt-like wetting wall for allowing the polyalkylene glycol 4 to flow down through the space on the indoor side 1 which is the space to be dehumidified, 12 denotes the polyalkylene glycol 4 from the upper liquid reservoir 8 to the upper liquid reservoir 10. It is a temperature controller for detecting the temperature of the polyalkylene glycol 4 at the inflowing portion and adjusting the heating degree of the band heater 6 so as to adjust the temperature to an appropriate temperature according to the level of the temperature.

Next, the operation of the above configuration will be described.

First, the absorption liquid accumulated in the lower liquid reservoir 3, that is,
A polyalkylene glycol (viscosity molecular weight 1000 at 40 ° C., 50 cst) 4 is sent by a pump 5 to a heat exchanger 7 equipped with a band heater 6 to heat the polyalkylene glycol (hereinafter referred to as PAG) 4. Heated P. A. The G4 is sent to the upper liquid reservoir 8 and the P.G. A. The water dissolved in G4 evaporates into the atmosphere while the surface is being renewed.

Dehydration P.C. which has reached an optimum temperature by the temperature controller (TIC) 12. A. G4 is an upper liquid reservoir 10 on the indoor side 1
And flows freely through the impregnated felt-like wetting wall 11 connecting the upper liquid reservoir 10 and the lower liquid reservoir 3. In the meantime, the moisture in the air on the indoor side 1 is changed to P. A. G4 absorbs moisture automatically.

At this time, if the air inside the room 1 is forcibly blown into the wet wall 11 by using, for example, a fan, the dehumidification speed naturally increases.

P. A. G4 is repeatedly used repeatedly. At that time, when the pump 5 is stopped, A. It is necessary to keep the capacity of G4 so that it does not overflow in the lower liquid reservoir 3.

As an example of the dehumidifying operation, P. A. G
When the temperature of 4 falls to the room temperature (25 ° C) on the outside air side 2, it conversely absorbs the moisture in the outside air, so it remains at a high temperature (about
℃), lead to the indoor side 1, flow down the wetting wall 11 from the upper liquid reservoir 10 of the indoor side 1, and measure recirculation.

In this way, the polyalkylene glycol (PAG) 4 absorbs moisture in the air on the indoor side 1 and discharges (evaporates) the moisture into the atmosphere in the upper liquid reservoir 8 on the outdoor side 2. Therefore, the air on the indoor side 1 is gradually dehumidified, and when the humidity becomes comfortable to the human body, the state is maintained.

In this embodiment, the band heater 6 is used as the heating means for the polyalkylene glycol 4, but the heating means is not limited to this. Also, the absorbing liquid is not limited to polyalkylene glycol.

As described above, according to this embodiment, the absorbent is allowed to flow down through the wetting wall 11 while being exposed to the air on the indoor side 1,
Since the moisture in the air is absorbed and then released into the atmosphere in the upper liquid reservoir 8 is repeated, there is an advantage that the indoor side 1 is not air-cooled unlike cooling and dehumidifying.

Further, unlike the cooling and dehumidifying method, since no compressor is used, there is an advantage that dehumidifying can be achieved extremely quietly.

[0027]

Since the present invention is constructed as described above, it has the following effects.

That is, according to the present invention, since the dehumidification is performed by the original hygroscopic force of the absorbing liquid, the energy for absorbing the water is unnecessary, and the liquid heating and liquid circulation pump for discharging the absorbed water is used. It has only running power, very low running cost, no noise, and there is almost no adverse effect on adjacent areas.

Further, since the dehumidification does not depend on the cooling system, it has a very comfortable effect on dehumidification during the rainy season, dehumidification with a refreshing feeling is obtained, and the conventional chilliness is not felt at all.

Since the dehumidification does not involve cold air, it is particularly suitable for long-term use at night, and dehumidification that is comfortable for the aged, children and sick people can be performed.

[Brief description of drawings]

FIG. 1 is a schematic side view of an absorption type dehumidifier according to an embodiment of the present invention.

[Explanation of symbols]

 1 Indoor Side 2 Outside Air Side 3 Lower Liquid Reservoir 4 Polyalkylene Glycol (Absorbing Liquid) 5 Pump 6 Band Heater 7 Heat Exchanger 8 Upper Liquid Reservoir (Outside Air Side) 9 Weir 10 Upper Liquid Reservoir (Inside Room) 11 Wet Wall 12 Temperature Controller

Claims (4)

[Claims] 1. An upper atmosphere reservoir and a lower reservoir which are open to the atmosphere for containing an absorbent that absorbs water, and a downflow-type wetting wall is provided on the dehumidified space side between both reservoirs, and the lower reservoir is also provided. An absorption type dehumidifying device having an absorption liquid transfer path for transferring the absorption liquid flowing down to the reservoir to an upper liquid reservoir via a pump and a heater. 2. The absorption type dehumidifier according to claim 1, wherein the absorbing liquid is polyalkylene glycol. 3. The absorption type dehumidifying device according to claim 1, wherein a weir is provided in the upper liquid reservoir to sequentially supply the absorption liquid transferred through the heater to the wetting wall side. 4. A temperature controller for controlling the heater by detecting the temperature of the absorbing liquid at the upper liquid reservoir outlet.
Absorption-type dehumidifier described.