JP2010014390A - Humidity control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a humidity control system humidifying an indoor space without requiring a heat source. <P>SOLUTION: The humidity control system includes an indoor unit 2 having an indoor heat exchanger 22 and a first air blowing fan 21; a first moisture permeation member 3 arranged in an air current generated by the first air blowing fan 21 and formed of a moisture permeation film; a storage part 51 capable of storing water; a second moisture permeation member 52 formed of a moisture permeation film and installed in the storage part 51; and a circulation unit 6 for circulating an absorbing solution for absorbing steam between the first moisture permeation member 3 and the second moisture permeation member 52. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a humidity control system.

Conventionally, a device using a desiccant is known as a device for adjusting the relative humidity in a room. For example, the humidity control apparatus described in Patent Literature 1 performs dehumidification by allowing air in a relative humidity to pass through the desiccant to adsorb moisture in the air to the desiccant. In addition, when humidifying, the desiccant is regenerated by allowing the air heated by the heat exchange means and the heater to pass through the desiccant, and at this time, moisture is received from the desiccant and air with a higher relative humidity is supplied into the room. It has become a mechanism to humidify.
JP-A-8-14600

  However, the air conditioner requires a heat source for regeneration of the desiccant when humidifying. Then, this invention makes it a subject to provide the humidity control system which can humidify indoors, without requiring a heat source.

  A humidity control system according to the present invention is made to solve the above-described problem, and an indoor unit having an indoor heat exchanger and a first blower fan, and an air flow generated by the first blower fan. And a first moisture permeable member formed by a moisture permeable membrane so as to have a hollow inside, a reservoir capable of storing water, and a transparent portion installed in the reservoir and having a hollow inside. A second moisture permeable member formed of a wet film and an absorbing liquid that absorbs water vapor flow through the first moisture permeable member and the second moisture permeable member, and the first moisture permeable member and the first moisture permeable member. A circulation unit that circulates between the two moisture permeable members.

  According to the humidity control system, since the second moisture permeable member is disposed in the reservoir that stores water, the air having a high relative humidity in the reservoir passes through the second moisture permeable member and is absorbed. Water vapor in the air is absorbed by the liquid. And the absorption liquid which absorbed the water vapor | steam in a storage part and became high in the moisture content (water vapor content) is sent to a 1st moisture permeable member by a circulation unit. Since the first moisture permeable member is disposed in the airflow generated by the first blower fan, the indoor dry air passes through the first moisture permeable member and comes into contact with the absorbing liquid. At this time, air absorbs water vapor from the absorbing liquid and is released into the room, so that the room can be humidified. As described above, the humidity control system can humidify a room without requiring a heat source. Moreover, since the 2nd moisture permeable member used as the supply source of water vapor | steam is arrange | positioned in the storage part in which water is stored, it can supply water vapor | steam stably indoors. The moisture permeable membrane has a property of allowing water vapor (gas) to pass but not water (liquid).

  The humidity control system can take various configurations. For example, the humidity control system further includes an outdoor unit having an outdoor heat exchanger and a second blower fan, and the second air blower generates a second airflow generated by the second blower fan. It is preferable to arrange a moisture permeable member. According to this configuration, when the indoor relative humidity becomes higher than the outdoor relative humidity, the room can be dehumidified by removing the water in the reservoir. If it demonstrates in detail, a 1st ventilation fan will be actuated and indoor air will be allowed to pass through in the 1st moisture permeability member. At this time, since the indoor air has a higher relative humidity than the outdoor air, the water vapor in the indoor air is absorbed by the absorbent flowing in the first moisture permeable member, and the indoor air can be dehumidified. And the absorption liquid which absorbed the water vapor | steam in indoor air in a 1st moisture permeable member is sent to a 2nd moisture permeable member by a circulation unit, but a 2nd moisture permeable member is 2nd ventilation. Since it is arrange | positioned in the airflow which generate | occur | produces with a fan, the air with a low outdoor relative humidity passes through the inside of the 2nd moisture permeable member. At this time, outdoor air comes into contact with the absorbing liquid flowing in the second moisture permeable member, absorbs water vapor from the absorbing liquid, and releases the water vapor to the outside. By repeating this cycle, the room can be dehumidified.

  Moreover, it is preferable that at least one of the first moisture permeable member and the second moisture permeable member is constituted by a plurality of moisture permeable tubes formed in a tubular shape by a moisture permeable membrane. Thereby, humidity control can be performed more efficiently.

  Moreover, it is preferable that the said absorption liquid is lithium chloride aqueous solution. Thereby, propagation of various germs can be prevented.

  ADVANTAGE OF THE INVENTION According to this invention, the humidity control system which can humidify a room | chamber interior without requiring a heat source can be provided.

  Hereinafter, an embodiment of a humidity control system according to the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a humidity control system according to the present embodiment.

  As shown in FIG. 1, in the humidity control system 1, the indoor unit 2 and the first moisture permeable member 3 are installed indoors, and the outdoor unit 4, the storage unit 51, and the second moisture permeable member 52 are installed outdoors. Furthermore, the circulation unit 6 is installed across the room and the outdoors. Hereinafter, each member will be described.

  The indoor unit 2 includes a first blower fan 21 that generates an airflow by rotating, and an indoor heat exchanger 22 that is disposed in the airflow generated by the rotation of the first blower fan 21. The indoor unit 2 is connected to an outdoor unit 4 described later via a refrigerant pipe P. The indoor heat exchanger 22 is a device that exchanges heat between the refrigerant flowing inside and the air flowing outside, and functions as a condenser during heating operation.

  As shown in FIG. 2, the first moisture permeable member 3 is composed of a plurality of moisture permeable tubes 31 formed in a tubular shape by a moisture permeable membrane, and each moisture permeable tube 31 in the first moisture permeable member 3. The absorption liquid circulated by the circulation unit 6 described later flows in the interior space. Specifically, Sansep-W (registered trademark) manufactured by AGC Engineering Co., Ltd. can be used as the first moisture permeable member 3. Since the first moisture permeable member 3 is installed in the air flow generated by the first blower fan 21, the air sent from the first blower fan 21 is supplied to each moisture permeable tube in the first moisture permeable member 3. It passes through the internal space of 31 and contacts the absorbing solution. The moisture permeable membrane constituting each moisture permeable tube 31 of the first moisture permeable member 3 has a property of allowing gas (including water vapor) to pass but not liquid (including water). Polytetrafluoroethylene and the like, specifically, Gore-Tex (registered trademark, Japan Gore-Tex) and Flemion (registered trademark, Asahi Glass).

  The outdoor unit 4 includes an expansion valve 41, an outdoor heat exchanger 42, a four-way switching valve 43, and a compressor 44 that are connected to the indoor heat exchanger 22 of the indoor unit 2 via the refrigerant pipe P. . The expansion valve 41 is configured to rapidly depressurize the refrigerant to a low temperature / low pressure. The outdoor heat exchanger 42 is a device that exchanges heat between the refrigerant flowing inside and the air flowing outside, and functions as an evaporator during heating operation. The four-way switching valve 43 is a valve that can switch the flow path of the refrigerant, and the flow path of the refrigerant so as to send the refrigerant discharged from the compressor 44 to either the indoor heat exchanger 22 or the outdoor heat exchanger 42. Switch. Note that the refrigerant flow path is switched so that the refrigerant discharged from the compressor 44 is sent to the indoor heat exchanger 22 during the heating operation. The compressor 44 is driven by a driving device (not shown), compresses the sucked refrigerant inside, and discharges it at a high temperature and a high pressure. The outdoor unit 4 further includes a second blower fan 45 that generates an airflow by rotating, and the outdoor heat exchanger is included in the airflow generated by rotating the second blower fan 45. 42 is arranged.

  The reservoir 51 is configured as a container that can store water therein. The water in the reservoir 51 can be supplied from a water pipe via a water supply mechanism (not shown), or rainwater can be used.

  As shown in FIG. 3, the second moisture permeable member 52 is composed of a plurality of moisture permeable tubes 521 formed in a tubular shape by a moisture permeable film, like the first moisture permeable member 3. The absorption liquid circulated by the circulation unit 6 described later flows in the space inside each moisture permeable tube 521 in the two moisture permeable members 52. Specifically, Sansep-W (registered trademark) manufactured by AGC Engineering Co., Ltd. can be used as the second moisture permeable member 52. The second moisture permeable member 52 is disposed in the storage part 51 and partly immersed in the water in the storage part 51. By disposing the second moisture permeable member 52 in this way, water vapor in the air with high humidity near the water surface in the reservoir 51 enters the inside of each moisture permeable tube 521 of the second moisture permeable member 52. Then contact the absorbent. The moisture permeable membrane constituting the moisture permeable tube 521 of the second moisture permeable member 52 is the same as the material constituting the moisture permeable tube 31 of the first moisture permeable member 3, and the gas (including water vapor) is Uses those that have the property of passing through but not liquid (including water), and examples include hydrophobic polytetrafluoroethylene, such as Gore-Tex (registered trademark, Japan Gore-Tex) Flemion (registered trademark, Asahi Glass) and the like can be mentioned.

  The circulation unit 6 is a unit that circulates the absorbing liquid between the first moisture permeable member 3 and the second moisture permeable member 52, and the first moisture permeable member 3 and the second moisture permeable member 52 are connected to each other. It has the 1st piping 61 and the 2nd piping 62 to connect. A liquid feed pump 63 is installed in the second pipe 62, and the liquid feed pump 63 causes the absorbed liquid to be transferred from the second moisture permeable member 52 to the first moisture permeable member 3 in the first pipe 61. In the second pipe 62, the first moisture permeable member 3 flows from the second moisture permeable member 52 to the second moisture permeable member 52 and circulates between the first moisture permeable member 3 and the second moisture permeable member 52. . The circulation unit 6 further includes a reserve tank 64 connected to the second pipe 62. By providing the reserve tank 64, the amount of the absorbent circulating in the first and second pipes 61 and 62 can be adjusted as appropriate, and the problem of the volume of the absorbent expanding due to the absorption of water vapor is solved. be able to. The absorbing solution only needs to absorb water vapor contained in the air, for example, lithium chloride aqueous solution, calcium chloride aqueous solution, diethylene glycol, triethylene glycol, glycerin, phosphoric acid, sulfuric acid, sodium hydroxide aqueous solution, A potassium hydroxide aqueous solution or the like can be preferably used. Among these, an aqueous lithium chloride solution is preferable from the viewpoints of moisture absorption and absorption capacity, environmental aspects, and harmlessness.

  Next, an operation method of the humidity control system configured as described above will be described.

  First, the indoor heating operation will be described. During the heating operation, the first blower fan 21 and the second blower fan 45 rotate to generate an air flow, and the refrigerant circulates in the refrigerant pipe P. The refrigerant circulating in the refrigerant pipe P is compressed by the compressor 44 to become high temperature and high pressure, and is sent to the indoor heat exchanger 22 through the four-way switching valve 43. The refrigerant sent to the indoor heat exchanger 22 exchanges heat with the indoor air sent by the first blower fan 21 to condense, thereby heating the air near the indoor heat exchanger 22 and cooling the refrigerant itself. And sent to the expansion valve 41. The refrigerant sent to the expansion valve 41 is abruptly reduced in pressure by the expansion valve 41, becomes low temperature / low pressure, and is sent to the outdoor heat exchanger 42. The refrigerant sent to the outdoor heat exchanger 42 takes heat from the air in the vicinity of the outdoor heat exchanger 42 by evaporating through heat exchange with the air in the vicinity of the outdoor heat exchanger 42 sent by the second blower fan 45. . The evaporated refrigerant is again sucked into the compressor 44 and the above-described cycle is repeated. By repeating this cycle, the indoor air is warmed, but by warming the air, the relative humidity of the indoor air is lowered and the room is in a dry state.

  The humidification operation for humidifying the room dried by the heating operation will be described. This humidification operation is usually performed simultaneously with the heating operation. First, water is stored in the storage unit 51. Highly humid air near the water surface of the reservoir 51 passes through the inside of each moisture permeable tube 521 of the second moisture permeable member 52. The water vapor in the air passing through the inside of each moisture permeable tube 521 is absorbed by the absorbing liquid having a small water content (water vapor content) flowing through the inside of each moisture permeable tube 521. Thus, the absorption liquid which absorbed water vapor | steam and the water content became large is sent to the 1st moisture permeable member 3 via the 1st piping 61. FIG. Although the air sent from the 1st ventilation fan 21 has passed through the inside of the 1st moisture permeable member 3, since the indoor air which passes through this inside is dry and relative humidity is low, it is 1st Water vapor in the absorbent flowing in the moisture permeable tubes 31 of the moisture permeable member 3 is absorbed and discharged from the first moisture permeable member 3. Then, the absorption liquid whose moisture content has been reduced due to moisture being removed from the indoor air as water vapor is sent again to the second moisture permeable member 52 via the second pipe 62, and near the water surface of the reservoir 51. Absorbs water vapor from the air. By repeating the above cycle, water vapor present in the vicinity of the water surface of the reservoir 51 is released into the room using the absorbent as a transport medium, and humidifies the room. The humidifying function of the humidity control system 1 is exhibited when the relative humidity of the air near the first moisture permeable member 3 in the room is lower than the relative humidity of the air near the second moisture permeable member 52 in the outdoor. Is done. Usually, the air near the water surface of the reservoir 51 has a higher relative humidity than the indoor air. Also, indoor air in winter has a low relative humidity, and the relative humidity is lower by heating operation.

  If the humidification operation is continued, the indoor relative humidity becomes higher than the outdoor relative humidity. Next, the indoor dehumidification operation using the humidity control system 1, particularly the dehumidification operation performed at night when the heating operation is stopped. Will be described.

  In this case, first, the water in the reservoir 51 is removed. Then, the compressor 44 is not operated and the refrigerant in the refrigerant pipe P is not circulated, but the first blower fan 21 and the second blower fan are rotated. The indoor air sent from the first blower fan 21 passes through the moisture permeable tubes 31 of the first moisture permeable member 3, but the indoor air has a higher relative humidity than the outdoor air. Therefore, the water vapor is absorbed by the absorbing liquid flowing in each moisture permeable tube 31. The air whose moisture has been absorbed and the relative humidity is lowered is discharged into the room, and the absorbing liquid whose water content is increased by absorbing water vapor from the room air is circulated by the second moisture permeable member 52 by the circulation unit 6. Sent to. Since the second moisture permeable member 52 is disposed in the airflow generated by the second blower fan 45, the outdoor low-humidity air passes through the moisture permeable tubes 521 of the second moisture permeable member 52. To do. At this time, the outdoor air absorbs water vapor from the absorbing liquid and is discharged to the outside. Then, the absorption liquid whose water content has been lowered by the release of water vapor by the outdoor air is sent again to the first moisture permeable member 3 by the circulation unit 6. By repeating the above cycle, the room can be dehumidified.

  As described above, according to this embodiment, the room can be humidified without the need for a heat source. Moreover, since the 2nd moisture permeable member 52 is arrange | positioned in the storage part 51 which stored water at the time of humidification driving | operation, water vapor | steam can be stably supplied indoors.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to these, A various change is possible unless it deviates from the meaning of this invention. For example, in the said embodiment, although the 2nd moisture permeable member 52 is arrange | positioned in the airflow which generate | occur | produces by rotation of the 2nd ventilation fan 45, the arrangement | positioning location of the 2nd moisture permeable member 52 is specifically limited. It does not have to be in the air current of the second blower fan 45.

  Moreover, in the said embodiment, although the 2nd moisture permeable member 52 is partially immersed in the water of the storage part 51, if it is arrange | positioned in the water surface vicinity in the storage part 51, it is not necessary to be immersed in water in particular. .

  Moreover, although the said 1st moisture permeable member 3 or the 2nd moisture permeable member 52 is comprised from the some tubular moisture permeable tube, you may comprise as one cylindrical moisture permeable cylinder.

It is a block diagram which shows embodiment of the humidity control system which concerns on this invention. It is the schematic which shows the 1st moisture-permeable member which concerns on this embodiment. It is the schematic which shows the 2nd moisture-permeable member which concerns on this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Humidity control system 2 Indoor unit 21 1st ventilation fan 22 Indoor heat exchanger 3 1st moisture permeable member 31 Moisture permeable pipe 4 Outdoor unit 42 Outdoor heat exchanger 51 Storage part 52 2nd moisture permeable member 521 Moisture permeability Tube 6 Circulation unit

Claims (4)

An indoor unit having an indoor heat exchanger and a first blower fan;
A first moisture permeable member that is disposed in the air flow generated by the first blower fan and that is formed by a moisture permeable membrane so as to have a hollow inside;
A reservoir capable of storing water;
A second moisture permeable member installed in the reservoir and formed by a moisture permeable membrane so as to have a hollow inside;
A circulation unit that circulates between the first moisture permeable member and the second moisture permeable member while allowing an absorbent that absorbs water vapor to flow through the inside of the first moisture permeable member and the second moisture permeable member; ,
Humidity control system with An outdoor unit having an outdoor heat exchanger and a second blower fan;
The humidity control system according to claim 1, wherein the second moisture permeable member is disposed in an air flow generated by the second blower fan.   The humidity control system according to claim 1 or 2, wherein at least one of the first moisture permeable member and the second moisture permeable member is constituted by a plurality of moisture permeable tubes formed in a tubular shape by a moisture permeable membrane. .   The humidity control system according to claim 1, wherein the absorption liquid is an aqueous lithium chloride solution.

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