JP2000300933A - Dehumidifying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the dehumidifying capacity while suppressing a rise in the temp. of a region to be dehumidified. SOLUTION: In the dehumidifying apparatus provided with an air permeable moisture absorbing member 2 wherein a part thereof becomes a dehumidifying region 2d through which air to be dehumidified passes and the other part thereof becomes a regenerating region 2r through which regenerating air passes and the respective parts are successively altered to the dehumidifying region 2d and the regenerating region 2r, the respective parts of the moisture absorbing member 2 are provided so as to be successively altered to the dehumidifying region 2d through a cooling region 2c through which regenerating air cooled by a cooling means C passes after they become the regenerating region 2r and a circulating blower means 5 is constituted so as to circulate the regenerating air through the circulating route L passing through the heating action region of a heating means 3, the regenerating region 2r and the cooling action region and cooling region 2c of the cooling means C and the cooling means C is equipped with an air-liquid heat exchange part 7 performing the heat exchange of the regenerating air with a liquid cooling medium to cool the regenerating air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a moisture absorbing body which is configured to be ventilated, a part of which serves as a dehumidifying area through which air to be dehumidified flows, and the other part serves as a regenerating area through which a regeneration gas flows. And each part is provided so that it may replace the dehumidification area and the regeneration area in order. Intake air to be dehumidified from the dehumidification target area, and send air to the dehumidification target area after passing through the dehumidification area of the hygroscopic body. A dehumidifying blower, a heating zone of a heating unit for heating the regeneration gas, a regeneration zone, and a cooling zone of a cooling unit for cooling the regeneration gas and condensing and separating water contained in the regeneration gas. And a circulation blowing means for circulating the regeneration gas in a circulation path passing through in the order of.

[0002]

2. Description of the Related Art In such a dehumidifying apparatus, as shown in FIG. 6, a dehumidifying body 2 which is permeable to air is provided, for example, in an area where a part of the circumferential direction of the dehumidifying air flows. It is provided so as to be rotated around the rotation axis P in a state where it is located at Ad and the other portion is located in the regeneration gas flow area Ar where the regeneration gas flows. In addition, air in the dehumidification target area R is taken in from the intake port 10, and the dehumidification target air flow area Ad
After passing through, the dehumidifying air supply means 4 for supplying air from the air supply port 11 to the dehumidification target area R, the heating area of the heating means 3 for heating the regeneration gas, the regeneration gas flow area Ar, the regeneration gas Of the cooling means C of the cooling means C for cooling the water and condensing and separating the water contained in the regeneration gas.
Thus, a circulating blower 5 for circulating the regeneration gas is provided. That is, by rotating the hygroscopic body 2 around the rotation axis P, the dehumidification target air flow area A
The part located at d is the dehumidification area 2d, the part located at the regeneration gas flow area Ar is the regeneration area 2r, and each part of the moisture absorber 2 is sequentially replaced by the dehumidification area 2d and the regeneration area 2r.

Conventionally, as shown in FIG.
Was constituted by a gas-gas heat exchanger 27 that exchanges heat with the air to be dehumidified in which the regeneration gas flows through the air passage area Ad for dehumidification and cools. Accordingly, in the gas-gas heat exchanger 27, heat is exchanged between the dehumidification target air sucked in from the dehumidification target region R and the high-temperature and high-humidity regeneration gas passed through the regeneration region 2r to regenerate into the dehumidification target air. Sensible heat of the working gas,
In addition, the heat of condensation of the moisture contained in the regeneration gas is absorbed, and the moisture is condensed and separated from the regeneration gas. Then, water is condensed and separated in the gas-gas heat exchanger 27,
Further, the high-temperature and low-humidity regeneration air heated by the heating means is passed through the regeneration region 2r of the moisture absorber 2, and the regeneration gas releases moisture from the moisture absorber 2 to regenerate the moisture absorber 2. . The regeneration area 2r of the moisture absorbent 2 thus regenerated replaces the dehumidification area 2d. Dehumidifying area 2d of the moisture absorbing body 2
Then, the air to be dehumidified is allowed to flow through the gas-gas heat exchanger 27, and after being dehumidified there, is sent to the dehumidification target area R.

[0004]

However, in the past, since the air for dehumidification having a low thermal conductivity was used as a cooling medium to exchange heat with the regeneration gas to cool the regeneration gas, the heat exchange efficiency was low. . Therefore, the cooling capacity for cooling the regeneration gas, that is, the ability to condense and separate moisture from the regeneration gas is low, and hence the regeneration capacity of the moisture absorbent (that is, the regeneration in which moisture is separated by cooling by cooling means). (The ability to release moisture from the moisture absorber by passing the use gas through the moisture absorber) is low, and there is room for improvement in improving the dehumidification ability.

Conventionally, the sensible heat of the regeneration gas (that is, the regeneration heat applied for regeneration of the moisture absorber 2) is supplied to the dehumidification target air taken in from the dehumidification target area by a gas-gas heat exchanger. ) And the heat of condensation of moisture contained in the regeneration gas (corresponding to the heat of condensation of moisture in the air to be dehumidified). Furthermore, the regeneration area 2r of the moisture absorbent 2 through which the regeneration gas heated by the heating means 3 has passed becomes the dehumidification area 2d, so that in the dehumidification area 2d, the air to be dehumidified is used for regeneration of the moisture absorbent 2 The remaining heat of the heat was absorbed.
Therefore, conventionally, the heat of condensation of the moisture in the air to be dehumidified, and the heat for regenerating the absorbent body are radiated to the dehumidification target area, so that the dehumidification target area is dehumidified, but in the dehumidification target area. There was a problem that the temperature rose. Particularly, from the rainy season to the summer season, when dehumidification is required, the temperature in the dehumidification target area rises to an unpleasant state, so that such a problem has been remarkable. Incidentally, the temperature in the dehumidification target area increased by at least about 3 to 5 ° C.

The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the dehumidifying ability and to suppress a temperature rise in a dehumidification target area.

[0007]

Means for Solving the Problems [Invention according to claim 1]
The characteristic configuration according to claim 1, wherein, after each part of the moisture absorber becomes the regeneration area, the dehumidification area passes through a cooling area through which a regeneration gas cooled by the cooling unit flows. Is provided so as to sequentially replace, the circulating air blowing means,
In the circulation path passing through the heating action area of the heating means, the regeneration area, the cooling action area of the cooling means, the cooling area,
The cooling gas is configured to circulate the regeneration gas, and the cooling unit includes a gas-liquid heat exchange unit that exchanges heat with the liquid cooling medium to cool the regeneration gas.

[0008] According to the characteristic structure of the first aspect, the regeneration gas includes a heating area of the heating means, a regeneration area of the absorbent,
Since the gas flows through the circulation path that passes through the cooling area of the cooling means and the cooling area of the moisture absorbent in order, the regeneration gas cooled by the cooling means absorbs moisture from the moisture absorbent when flowing through the cooling area of the moisture absorbent. Absorbs excess heat from body regeneration. Further, since each part of the moisture absorbent becomes a dehumidification area via the cooling area after becoming the regeneration area, the heat for regeneration given to the part which became the regeneration area of the moisture absorbent dehumidifies that part. In the cooling area before the area, the heat is radiated to the regeneration gas. Further, since the cooling means includes a gas-liquid heat exchange section, the gas-liquid heat exchange section exchanges heat between the regeneration gas passing through the regeneration area of the absorbent and the liquid cooling medium. By doing so, the liquid cooling medium absorbs the sensible heat of the regeneration gas (heat for regeneration of the absorbent) and the heat of condensation of moisture contained in the regeneration gas (equivalent to the heat of condensation of moisture in the air to be dehumidified). Then, the regeneration gas is cooled, and water is condensed and separated from the regeneration gas.

Therefore, the liquid cooling medium absorbs the heat for regenerating the moisture absorbent and the heat of condensation of the moisture in the air to be dehumidified,
And the dehumidification is achieved by synergistic effect of radiating the regeneration heat given to the portion that has become the regeneration region of the moisture absorbent to the regeneration gas when the portion is in the cooling region before becoming the dehumidification region. Since the heat of condensation of moisture in the target air and the heat for regenerating the moisture absorbent can be suppressed from being radiated to the dehumidification target area, the temperature rise in the dehumidification target area can be suppressed. In addition, since a part of the heat for regeneration given to the moisture absorbent through the regeneration gas by the heating means is recovered by the regeneration gas when the regeneration gas flows through the cooling region of the moisture absorbent, the heat in the heating means Energy consumption can be reduced. Further, when the liquid cooling medium is used as the cooling medium, the liquid cooling medium has a higher thermal conductivity than the gas cooling medium, and therefore, compared with the case where the air to be dehumidified is used as the cooling medium, heat exchange with the regeneration gas is performed. The efficiency increases, the regeneration gas can be efficiently cooled, and the moisture contained in the regeneration gas can be condensed and separated, and as a result, the regeneration ability of the moisture absorber can be improved, As a result, the ability to dehumidify can be improved.

[0010] By the way, a case is conceivable in which a gas different from the regeneration gas is cooled and passed through the cooling region of the moisture absorbing body by a separately provided refrigerator or the like. However, in this case, there are disadvantages such as an increase in cost due to the provision of a refrigerator or the like and an increase in energy consumption, which is not practical.

According to a second aspect of the present invention, there is provided a gas-gas cooling system in which the cooling means exchanges heat with the air to be dehumidified for allowing the regeneration gas to flow through the dehumidification area. A heat exchange unit is provided, and the gas for gas regeneration is cooled using the gas-gas heat exchange unit and the gas-liquid heat exchange unit.

According to the second aspect of the present invention, the gas-gas heat exchange section and the gas-liquid heat exchange section cooperate to more efficiently condense and separate moisture from the regeneration gas. . Therefore, although the effect of suppressing the temperature rise in the dehumidification target area is somewhat inferior to that according to the characteristic configuration of the first aspect, the cooling capacity for cooling the regeneration gas can be further improved. The ability can be further improved.

According to a third aspect of the present invention, the cooling means supplies condensed water separated from the regeneration gas to the gas-liquid heat exchange section as the liquid cooling medium. The condensed water supply means is provided.

According to the third aspect of the present invention, the gas-gas heat exchange section and the gas-liquid heat exchange section cooperate to more efficiently condense and separate water from the regeneration gas. The condensed water thus separated is supplied to the gas-liquid heat exchange section as a liquid cooling medium by the condensed water supply means. Therefore, since the condensed water separated by the cooling means is used as the liquid cooling medium, it is not necessary to replenish the liquid cooling medium used in the gas-liquid heat exchange unit, or the replenishment amount can be reduced. The burden on the user involved in replenishing the liquid cooling medium can be reduced

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 4, the dehumidifying device is installed in the dehumidification target area R, sucks air in the dehumidification target area R from the intake port 10,
After dehumidifying the intake air, the dehumidification target area R is dehumidified by blowing out the air from the outlet 11.

As shown in FIG. 1, in the dehumidifying device, a dehumidifying rotor 2 as a humidifying member which is configured to be ventilated, and a part of the dehumidifying air in a circumferential direction of the dehumidifying device flows inside a housing 1. A regeneration air flow area Ar, which is located in the dehumidification target air flow area Ad, and the other part of which the regeneration air flows as the regeneration gas flows.
It is provided so that it can be rotated in a state where it is located at. After the air to be dehumidified is sucked into the interior of the housing 1 from the dehumidification target area R and passed through the dehumidification target air flow area Ad to dehumidify,
A dehumidifying blower 4 (corresponding to a dehumidifying blowing means) for feeding air to the dehumidification target area R, and an electric heater 3 for heating regeneration air
The heating section (corresponding to the heating means), the air flow area for regeneration Ar, and the cooling section C (corresponding to the cooling means) for cooling the regeneration air to condense and separate the moisture contained in the regeneration air. A circulation blower 5 (corresponding to a circulation blower) for circulating the air for regeneration and a control unit 6 for controlling the dehumidifier are provided in a circulation path L passing through the cooling action area in this order.

Accordingly, in the dehumidifying rotor 2, a portion located in the air passage area Ad for dehumidification is a dehumidification area 2d, and a part located in the regeneration air passage area Ar is a regeneration area 2r. Each part is sequentially replaced with a dehumidifying area 2d and a reproducing area 2r.

In the present invention, in the rotation direction of the dehumidifying rotor 2, the regenerator cooled by the cooling unit C is located at a position lower than the air flow region Ar for regeneration and higher than the air flow region Ad for dehumidification. Cooling air flow area A through which cooling air flows
c, a circulation path L passing through the circulation blower 5 in order through the heating action area in the electric heater 3, the regeneration air flow area Ar, the cooling action area in the cooling section C, and the cooling air flow area Ac.
Thus, the air for regeneration is circulated. Therefore, in the dehumidifying rotor 2, a portion located in the cooling air flow area Ac is a cooling area 2c in which the dehumidifying rotor 2 is cooled by the flow of the regeneration air cooled in the cooling unit C.
After the respective sections of the dehumidifying rotor 2 become the regeneration area 2r, they are provided so as to be sequentially replaced by the dehumidification area 2d via the cooling area 2c.

The cooling section C is a gas-liquid heat exchanging section 7 (hereinafter, sometimes referred to as a water-cooled heat exchanging section) for cooling the regenerating air by exchanging heat with cooling water as a liquid cooling medium.
It is provided with.

The dehumidifying rotor 2 is constituted by holding a hygroscopic agent (silica gel, lithium chloride, etc.) on a honeycomb-shaped base material capable of ventilation in the direction of the rotation axis P. Air flow area Ad for dehumidification, air flow area for regeneration Ar
The motor 8 is provided so as to be driven to rotate around the rotation axis P while straddling the cooling air flow area Ac. The air to be dehumidified passes through the dehumidifying rotor 2 in the direction of the rotation axis P, and the air to be dehumidified flows through the dehumidification rotor 2 in the direction of the rotation axis P. The regenerating air flow area Ar and the cooling air flow area Ac in which the regenerating air passes through the dehumidifying rotor 2 in the direction of the rotation axis P are cooled in the rotating direction of the dehumidifying rotor 2. A flow area forming member 9 is formed so that the air flow area Ac is located downstream of the regeneration air flow area Ar and upstream of the dehumidification target air flow area Ad.

An air inlet 10 for sucking air in the dehumidification target area R and an air outlet 11 for blowing out the sucked air to the dehumidification target area R are formed in the housing 1. After the sucked air in the dehumidification target area R passes through the dehumidification target air flow area Ad, the air is discharged from the outlet 11 to the dehumidification target area R.
Forming a dehumidifying flow path 12 for guiding the air to be blown out,
The dehumidification blower 4 is provided so as to ventilate the dehumidification channel 12.

In the housing 1, a circulation path L through which the regeneration air passes through the heating action area of the electric heater 3, the regeneration air flow area Ar, the cooling action area of the cooling section C, and the cooling air flow area Ac in this order. The circulation blower 5 is formed so as to guide the flow through the circulation passage.
It is provided so as to provide ventilation. The electric heater 3 is provided in the cooling air flow area Ac in the regeneration air circulation path L.
At a position further downstream and upstream of the regeneration air flow area Ar, the regeneration air flowing through the circulation passage 13 is heated.

The cooling section C will be described. Cooling section C
The cooling water tank 17 for storing the cooling water, the cooling water supply path 14 for supplying the cooling water from the cooling water tank 17 to the water-cooled heat exchange unit 7, and the discharge of the cooling water from the water-cooled heat exchange unit 7 Cooling water discharge path 15, a condensed water discharge path 16 for discharging the condensed water separated in the water-cooled heat exchange unit 7, a cooling water discharged through the cooling water discharge path 15, and the condensed water discharge path 1.
A drain tank 19 is provided for receiving and storing condensed water discharged through 6.

The water-cooled heat exchange section 7 will be described.
The water-cooled heat exchange unit 7 includes an air supply chamber 33, a water storage chamber 34, and an air discharge chamber 35 in a housing 31 by two partition walls 32.
Are formed in a state of being vertically arranged in order from the upper side, and a plurality of air flow pipes 36 penetrate the water storage chamber 34 in the vertical direction and communicate with the air supply chamber 33 and the air discharge chamber 35, It is provided over two partition walls 32. Then, the water-cooled heat exchange unit 7 is moved from the regeneration air flow area Ar in the circulation flow path 13 to the cooling air flow area Ac.
On the way to the air supply chamber 33,
Are connected in communication with each other, and the air discharge chamber 35 is provided in a state where the downstream side of the circulation channel 13 is connected in communication.

The cooling water in the cooling water tank 17 is stored in the water storage chamber 34.
The cooling water supply path 14 is connected to the cooling water tank 17 and the lower part of the water storage chamber 34, and a cooling water pump 18 is provided in the cooling water supply path 14. Water storage room 3
The cooling water discharge passage 15 is connected to the upper part of the water storage chamber 34 to discharge the cooling water in the overflow state in the overflow state, and discharges the condensed water separated in the water-cooled heat exchange unit 7 to discharge the condensed water. The passage 16 is connected to the bottom of the air discharge chamber 35.

In the drawing, reference numeral 50 denotes a float which opens and closes a connection port between the air discharge chamber 35 and the condensed water discharge passage 16. The float 50 has a condensed water storage amount in the air discharge chamber 35 of a predetermined amount or less. At this time, the connection port is closed, and when the amount exceeds a predetermined amount, the connection port is floated to open the connection port, and while the regeneration air is prevented from flowing into the condensed water discharge path 16, the air discharge chamber 35 is closed. The condensed water is allowed to flow into the condensed water discharge passage 16.

A temperature sensor 20 for detecting the temperature of the cooling water in the water storage chamber 34 is provided. The water-cooled heat exchange unit 7
Insulating material 37 that suppresses heat radiation from the water-cooled heat exchange unit 7 to the dehumidification target area R, keeps the cooling water tank 17 warm, and increases the temperature of the cooling water in the cooling water tank 17 and the cooling water tank. A heat insulating material 21 for suppressing dew condensation on the surface 17 and a heat insulating material 2 for keeping the drain tank 19 warm and suppressing heat release from the water stored in the drain tank 19 to the dehumidification target area R.
2 is provided.

Next, the operation of the dehumidifier will be described.
The motor 8 is operated to rotate the dehumidifying rotor 2, the electric heater 3 is operated, and the dehumidifying fan 4 and the circulation fan 5 are operated. Incidentally, the rotation speed of the dehumidifying rotor 2 is set, for example, to about once / 3 minutes. Then, due to the ventilation action of the dehumidification blower 4, the dehumidification target area R
Of the air to be dehumidified is sucked from the intake port 10 and passes through the air passage area Ad to be dehumidified, and when passing therethrough, the moisture contained in the air air to be dehumidified becomes the air passage area Ad to be dehumidified.
The dehumidifying agent held in the dehumidifying rotor 2 located therein absorbs and dehumidifies the air, and the dehumidified air thus dehumidified is blown out from the outlet 11 into the dehumidification target region R, and the dehumidification target region R is dehumidified. Dehumidified.

When the portion of the dehumidification rotor 2 which is located in the air passage area Ad for dehumidification and absorbs moisture moves to the air circulation area Ar for regeneration, it is heated by the passage of regeneration air having a high temperature and a low humidity to be heated. The moisture absorbed in the rotor 2 is released, and the dehumidifying rotor 2 is regenerated. In the dehumidifying rotor 2, the temperature of the regenerated portion located in the regenerating air flow region Ar is rising, but the portion is moved to the cooling air flow region Ac, and thus the regenerated portion is cooled by the cooling portion C. The low-temperature and low-humidity regeneration air, which has been dehumidified and cooled down by cooling, passes, and is thus cooled. Then, the regenerated and cooled portion of the dehumidifying rotor 2 forms the dehumidification target air flow area A
Then, the air moves to d, where the air to be dehumidified is dehumidified.

The regenerating air is circulated through the heating area of the electric heater 3, the regenerating air flow area Ar, the cooling area of the cooling section C, and the cooling air flow area Ac in order by the ventilation action of the circulation blower 5. Circulates on route L. The regeneration air that has passed through the regeneration air flow area Ar and has become highly humid,
When flowing through the air flow pipe 36 of the water-cooled heat exchange unit 7,
Cooled by the cooling water in the water storage chamber 34, the water contained in the air for regeneration is condensed and separated. The regeneration air cooled by the water-cooled heat exchange unit 7 and separated from the water passes through the cooling air flow area Ac, and is further heated by the electric heater 3 to be in a high temperature and low humidity state for regeneration. The air flows through the air flow area Ar, where it acts on the dehumidifying rotor 2 to absorb moisture. The condensed water separated from the air for regeneration in the water-cooled heat exchange unit 7 is discharged from the bottom of the air discharge chamber 35 of the water-cooled heat exchange unit 7 through the condensed water discharge passage 16 and stored in the drainage tank 19.

Therefore, the heat for regenerating the dehumidifying rotor 2 and the heat of condensation of the moisture in the air to be dehumidified are absorbed by the cooling water, and the regenerating area given to the portion of the dehumidifying rotor 2 which has become the regenerating region 2r is used. The heat is radiated to the regeneration air in the cooling region 2c before the portion becomes the dehumidifying region 2d, and the heat radiation from the water-cooled heat exchange unit 7 to the dehumidifying target region R is suppressed by the heat insulating material 37. And the drainage tank 19
Due to the synergistic effect of suppressing heat radiation from the heat sink to the dehumidification target region R by the heat insulating material 22, the temperature rise in the dehumidification target region R can be effectively suppressed.

Since the temperature of the cooling water in the water storage chamber 34 of the water-cooled heat exchange section 7 is increased by heat exchange with the air for regeneration, when the temperature detected by the temperature sensor 20 reaches a predetermined temperature, the cooling water pump 18 Activate Then, as the low-temperature cooling water in the cooling water tank 17 is supplied from the lower part of the water storage chamber 34, the high-temperature cooling water in the water storage chamber 34 is discharged through the cooling water discharge path 15 in an overflow state. Then, the temperature of the cooling water in the water storage chamber 34 decreases. Cooling water discharge path 15
The cooling water discharged through is stored in the drainage tank 19 together with the condensed water.

The cooling water tank 17 stores, for example, tap water. Alternatively, when water cooled by a refrigerator or the like is stored in the cooling water tank 17 or ice is put into the cooling water tank 17 to cool the stored cooling water, the dehumidifying ability can be further improved. The user discards the water in the drain tank 19 as appropriate.

The control operation of the control unit 6 will be described. When the temperature detected by the temperature sensor 20 becomes equal to or higher than a preset set temperature, the control unit 6 operates the cooling water pump 18 for a set time for operating the cooling water pump. The set time for operating the cooling water pump can be set as appropriate. For example, substantially the entire amount of the cooling water in the water storage chamber 34 is stored in the cooling water tank 17.
Set so that it can be replaced with the cooling water inside.

[Second Embodiment] Hereinafter, based on FIG.
A second embodiment of the present invention will be described. In the second embodiment, a gas-gas heat exchange unit 23 (hereinafter, air-cooled heat exchange) that cools the cooling unit C by exchanging heat with dehumidification target air that allows regeneration air to flow through the dehumidification target air flow area Ad. The air-cooled heat exchange unit 23
The air for regeneration is configured to be cooled by using a water-cooled heat exchange unit 7, and the other configuration is the same as that of the first embodiment.

The cooling section C will be described. The cooling unit C includes an air supply header 42 in an air cooling unit forming casing 41.
And the water-cooling section forming casing 43 are arranged at an interval in the vertical direction in a state where the air supply header 42 is located above, and the water storage chambers 44 and The air discharge chambers 45 are formed so as to be vertically arranged in order from the upper side, and a plurality of air flow pipes 46 penetrate the water storage chambers 44 in the vertical direction to form the air supply header 42 and the air discharge chamber 45, respectively. Is provided by being connected to the device.

The cooling section C is connected to the air supply header 42 in the circulation passage 13 in the middle of a portion of the circulation passage 13 from the regeneration air passage Ar to the cooling air passage Ac.
3 is connected to the upstream side, and the air discharge chamber 45 is provided so that the downstream side of the circulation channel 13 is connected to the air discharge chamber 45.
Further, an air-cooling section forming casing 41 is connected to a portion of the dehumidification flow path 12 upstream of the dehumidification target air flow area Ad, so that the dehumidification target air flowing through the dehumidification flow path 12 passes through the air-cooling section. After flowing through the forming casing 41, the air flow area A for dehumidification
d. Therefore, the air-cooled heat exchange section 2 is formed by the air-cooled section forming casing 41 and the air flow pipe 46.
3 and a water-cooling section forming casing 43 and an air flow pipe 46.
Constitute a water-cooled heat exchange unit 7.

As in the first embodiment, the cooling water tank 17
In order to supply the cooling water in the cooling water supply passage 14 to the water storage chamber 44 of the water-cooled heat exchange unit 7 from below, the cooling water supply passage 14 is connected to the cooling water tank 17.
And a lower portion of the water storage chamber 44, and a cooling water discharge passage 15 for discharging the cooling water in the water storage chamber 44 in an overflow state.
Is connected to the upper part of the water storage chamber 44, and the condensed water separated in the air-cooled heat exchange unit 23 and the water-cooled heat exchange unit 7 is discharged.
The condensed water discharge passage 16 is connected to the bottom of the air discharge chamber 45. At the connection port between the air discharge chamber 45 and the condensed water discharge passage 16, a float 50 that operates in the same manner as in the first embodiment is provided. Further, a temperature sensor 20 for detecting the temperature of the cooling water in the water storage chamber 44 is provided. In addition, the heat insulating material 48 is provided so as to cover the outer periphery of the air-cooling section forming casing 41 to suppress heat radiation from the cooling section C to the dehumidification target area R. The control unit 6
As in the first embodiment, when the temperature detected by the temperature sensor 20 becomes equal to or higher than the set temperature, the cooling water pump 18 is operated for a set time.

In the air-cooling type heat exchange section 23, the regeneration air flowing through the air flow pipe 46 is cooled by the air to be dehumidified flowing through the air-cooling section forming casing 41. The condensed water separated by the air-cooled heat exchange unit 23 and the condensed water separated by the water-cooled heat exchange unit 7 both flow down the air flow pipe 46 and are discharged through the condensed water discharge passage 16. You.

In the dehumidifying apparatus according to the second embodiment, the cooperation of the air-cooled heat exchange unit 23 and the water-cooled heat exchange unit 7 allows water to be more efficiently condensed and separated from the regeneration air.

[Third Embodiment] Hereinafter, based on FIG.
A third embodiment of the present invention will be described. In the third embodiment, similarly to the second embodiment, an air-cooling heat exchange unit 23 that exchanges heat with dehumidification target air that allows regeneration air to flow through a dehumidification target air flow area Ad, as in the second embodiment, and cools the air. The air-cooled heat exchange section 23 and the water-cooled heat exchange section 7 are used to condense and separate moisture from the regeneration air. Further, the condensed water separated from the regeneration air is separated from the regeneration air. Condensed water pump 2 that supplies cooling water to water-cooled heat exchange section 7
4 (corresponding to condensed water supply means). However, the cooling water tank 17, the cooling water supply path 14, the cooling water pump, the temperature sensor 20, and the condensed water discharge path 16 in the second embodiment are omitted.

In the third embodiment, the air discharge chamber 45 in the second embodiment also functions as a storage for condensed water separated from the air for regeneration, and serves as an air discharge chamber and a condensed water storage chamber 45. Used. Then, the lower part of the air discharge chamber / condensed water storage chamber 45 and the lower part of the water storage chamber 44 are connected by the condensed water supply passage 25, and the air discharge chamber / condensed water storage chamber 4 is connected.
In order to supply the condensed water stored in 5 as cooling water to the water-cooled heat exchange unit 23, a condensed water pump 24 is provided in the condensed water supply passage 25. The cooling water discharge passage 15 is connected to the upper part of the water storage chamber 44 to discharge condensed water as the cooling water in the water storage chamber 44 in an overflow state, as in the second embodiment. The condensed water discharged through the discharge passage 15 is received and stored.
Further, a water level sensor 2 for detecting that the level of the condensed water stored in the air discharge chamber / condensed water storage chamber 45 has reached the set water level.
6 is provided.

When the water level sensor 26 detects that the water level of the condensed water in the air discharge chamber / condensed water storage chamber 45 has reached the set water level, the condensed water pump 24 is operated.
Then, the condensed water in the air discharge chamber / condensed water storage chamber 45 is supplied from the lower part of the water storage chamber 44, and accordingly, the water storage chamber 4
Since the high-temperature condensed water in 4 is discharged through the cooling water discharge passage 15 in an overflow state, the temperature of the condensed water as the cooling water in the water storage chamber 44 decreases.

The control operation of the control unit 6 will be described. When the control unit 6 detects that the water level sensor 26 has reached the set water level, the control unit 6 operates the condensed water pump 24 for the set time for operating the condensed water pump, and appropriately sets the set time for operating the condensed water pump. For example, substantially all of the condensed water in the air discharge chamber / condensed water storage chamber 45 can be stored in the water storage chamber 4.
4 is set to a time that can be supplied. Third
In the dehumidifying device according to the embodiment, since the labor for replenishing the cooling water can be omitted, the usability is further improved.

[Another Embodiment] Next, another embodiment will be described. (A) The specific configuration for providing the moisture absorber 2 so that each part thereof becomes the regeneration region 2r and then sequentially replaces the dehumidification region 2d via the cooling region 2c is the same as the configuration exemplified in the above embodiment. It is not limited. For example, the moisture absorber 2 is fixedly provided, and the moisture absorber 2 is divided into three or more regions. A region through which the regeneration air heated by the heating means 3 flows, a region through which the regeneration air cooled by the cooling unit C flows, and a region through which the air to be dehumidified simultaneously exist. In this state, switching is performed such that the regeneration air heated by the heating unit 3, the regeneration air cooled by the cooling unit C, and the dehumidification target air are sequentially passed through the respective regions by a damper or the like in the stated order. That is, the area through which the regeneration air heated by the heating means 3 flows is the regeneration area 2r, the area through which the regeneration air cooled by the cooling unit C flows is the cooling area 2c, and the air to be dehumidified is The flowing region is the dehumidifying region 2d.

(B) In each of the first and second embodiments, the cooling water tank 21 is omitted, a water pipe is connected to the cooling water supply path 14, and an opening / closing valve is provided in the cooling water supply path 14. The tap water may be supplied to the water-cooled heat exchange unit 7 as cooling water by operating the on-off valve. In this case, there is no need to supply cooling water,
Usability is further improved. In each of the first, second and third embodiments, the drainage tank 19 may be omitted, and the water may be directly drained through the cooling water discharge passage 15.

(C) In the second and third embodiments in which the cooling section C is provided with the air-cooled heat exchange section 23 and the water-cooled heat exchange section 7, the air-cooled heat exchange section 23 and the water-cooled The case where the heat exchange unit 7 is provided in the circulation flow channel 13 in a state where the air-cooled heat exchange unit 23 is located on the upstream side of the water-cooled heat exchange unit 7 has been exemplified, but as shown in FIG. The heat exchange unit 7 may be provided in the circulation channel 13 in a state where the heat exchange unit 7 is located on the upstream side of the air-cooled heat exchange unit 23. In this case, since the air for regeneration is cooled first by the water-cooled heat exchange unit 7 located on the upstream side, the heat for regeneration of the dehumidifying rotor 2 and the heat for regeneration, as compared with the second and third embodiments, and In addition, the heat of condensation of moisture in the air to be dehumidified can be suppressed from being radiated to the air to be dehumidified. Therefore, the temperature rise in the dehumidification target area R can be further suppressed.

FIG. 5 shows a case in which condensed water is used as cooling water. The water-cooled heat exchange unit 7 includes a water storage chamber 51 and a plurality of air flow pipes 52 provided to penetrate the water storage chamber 5 in the up-down direction. The air-cooling type heat exchange unit 23 includes a dehumidification target air flow chamber 53 through which the dehumidification target air flows, and a plurality of upstream air flow pipes provided in a vertically penetrating state through the dehumidification target air flow chamber 53. 54 and a plurality of downstream air flow pipes 5 provided so as to vertically penetrate the air flow chamber 53 to be dehumidified.
5.

The air supply chamber 56 communicating with the upper end opening of the air flow pipe 52 of the water-cooled heat exchange section 7, the lower end opening of the air flow pipe 52 of the water-cooled heat exchange section 7 and the upstream of the air-cooled heat exchange section 23. The lower end opening of the side air flow pipe 54 and the condensed water storage chamber 57 for storing the condensed water, the upper end opening of the upstream air flow pipe 54 and the upper end opening of the downstream air flow pipe 55 are connected. The communication chamber 58 communicates with the lower end opening of the downstream air flow pipe 55, and is located above the condensed water storage chamber 57 and has at the bottom a communication opening 59 a that communicates with the condensed water storage chamber 57. 59 are provided. 5 is a float for opening and closing the communication opening 59a of the air discharge chamber 59. The float 50 closes the communication opening 59a when the storage amount of the condensed water in the air discharge chamber 59 is less than a predetermined amount. When the amount exceeds a predetermined amount, the condensed water in the air discharge chamber 59 is released while preventing the regeneration air from flowing into the condensed water storage chamber 57 while opening the communication opening 59a.
It is configured to move to

The upstream side of the circulation channel 13 is connected to the air supply chamber 56, and the downstream side of the circulation channel 13 is connected to the air discharge chamber 59, so that the regeneration air is supplied to the air supply chamber 56, The air flow pipe 52 of the water-cooled heat exchange section 7, the condensed water storage chamber 57,
The air flow pipe 54 on the upstream side of the air-cooled heat exchange unit 23 and the communication chamber 5
8, the downstream air flow pipe 55 and the air discharge chamber 59 are configured to flow sequentially. Further, a dehumidification air flow chamber 53 is connected to a portion of the dehumidification flow path 12 upstream of the dehumidification air flow area Ad, so that the dehumidification air flowing through the dehumidification flow path 12 is used for dehumidification. After flowing through the air flow chamber 53, the air is supplied to the dehumidification target air flow area Ad.

The lower part of the condensed water storage chamber 57 and the lower part of the water storage chamber 51 are connected by the condensed water supply passage 25, and the condensed water storage chamber 57 is connected.
A condensed water pump 24 is provided in the condensed water supply passage 25 so as to supply the condensed water stored in the condensed water as cooling water to the water-cooled heat exchange unit 7. The cooling water discharge passage 15 is connected to an upper part of the water storage chamber 51 so as to discharge condensed water as cooling water in the water storage chamber 51 in an overflow state. Further, a water level sensor 26 for detecting that the water level of the condensed water stored in the condensed water storage chamber 57 has reached the set water level is provided.

(D) The specific structure of the heating means is not limited to the electric heater 3 exemplified in each of the above embodiments, and may be, for example, a gas burner.

(E) The specific configuration of the moisture absorber is not limited to the configuration exemplified in the above embodiment.
For example, a configuration may be used in which a porous body that can be ventilated is used as a base material, and the porous body holds a moisture absorbent. Alternatively, a configuration may be employed in which the moisture absorbent itself is formed into a permeable porous shape.

(F) A gas other than air may be used as the regeneration gas. In addition, a liquid cooling medium other than water may be used.

(G) Hygroscopic agents include adsorbents such as silica gel, activated alumina, synthetic zeolite, and activated carbon that absorb moisture in the air, and absorbents such as lithium chloride and calcium chloride that absorb moisture in the air. Initially, various materials can be employed as long as they have a hygroscopic property and can be dehumidified and regenerated by a regeneration gas.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the overall configuration of a dehumidifier according to a first embodiment.

FIG. 2 is a block diagram showing an overall configuration of a dehumidifying device according to a second embodiment.

FIG. 3 is a block diagram showing an overall configuration of a dehumidifying device according to a third embodiment.

FIG. 4 is an external view of a dehumidifier.

FIG. 5 is a longitudinal sectional view showing a cooling unit according to another embodiment.

FIG. 6 is a block diagram showing the overall configuration of a conventional dehumidifier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 Hygroscopic body 2c Cooling area 2d Dehumidifying area 2r Regeneration area 3 Heating means 4 Dehumidifying air blowing means 5 Circulating air blowing means 7 Gas-liquid heat exchange part 23 Gas-gas heat exchange part 24 Condensed water supply means C Cooling means L Circulation path R Dehumidification target area

Claims (3)

[Claims] A part of a moisture-absorbing body that is configured to be ventilated serves as a dehumidifying area through which air to be dehumidified flows, another part serves as a regenerating area through which a regenerating gas flows, and each part includes the dehumidifying section. A dehumidifying air supply unit that is provided so as to sequentially replace the area and the regeneration area, inhales dehumidification target air from the dehumidification target area, and supplies air to the dehumidification target area after passing through the dehumidification area of the desiccant. The circulation path passes through the heating action area of the heating means for heating the regeneration gas, the regeneration area, and the cooling action area of the cooling means for cooling the regeneration gas and condensing and separating the moisture contained in the regeneration gas. A dehumidifier provided with a circulating air blowing means for circulating a regeneration gas, wherein after the respective parts of the moisture absorber become the regeneration area, a flow of the regeneration gas cooled by the cooling means is performed. Dehumidification via the flowing cooling area The circulation air blowing means is provided so as to sequentially replace the area, and the circulation gas passes through the heating action area of the heating means, the regeneration area, the cooling action area of the cooling means, and the circulation path passing through the cooling area in order. A dehumidifier configured to circulate the gas, wherein the cooling unit includes a gas-liquid heat exchange unit that cools the regeneration gas by exchanging heat with a liquid cooling medium. 2. The cooling means comprises a gas-gas heat exchange unit for cooling by exchanging heat with the air to be dehumidified for allowing the regeneration gas to flow through the dehumidification area. The dehumidifier according to claim 1, wherein the regeneration gas is cooled by using a gas-liquid heat exchange unit. 3. The cooling means includes a condensed water supply means for supplying condensed water separated from a regeneration gas as the liquid cooling medium to the gas-liquid heat exchange section. The dehumidifier according to any one of the preceding claims.