JP2004278972A - Humidity conditioner and humidity conditioning exhaust system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a humidity conditioner and a humidity conditioning exhaust system effectively preventing liquid leakage from a humidity conditioning module by preventing damage of a hydrophobic membrane due to pump pressure. <P>SOLUTION: A tank 1 and a pump 2 storing moisture absorbing liquid 10 is connected via a first liquid supplying pipe 11, and the pump 2 and a reservoir 3 are connected via a second liquid supplying pipe 12. The reservoir 3 and a dehumidifying module 4 using the hydrophobic membrane are connected via a third liquid supplying pipe 13, and the dehumidifying module 4 and the tank 1 are connected via a return pipe 14. The reservoir is provided at a position higher than the dehumidifying module 4 and the inside of the reservoir 3 is opened to atmosphere. Moisture absorbing liquid supplied from the tank 1 via the reservoir 3 by the pump 3 is passed through the dehumidifying module 4. Moisture is absorbed from air via the hydrophobic membrane by moisture absorbing liquid passing through the dehumidifying module 4 and air is dehumidified. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a humidity control device for dehumidifying or releasing moisture and a humidity control exhaust system.
[0002]
[Prior art]
Conventionally, as a humidity control device, as shown in FIG. 7, tubes 103, 103,... Composed of a large number of hydrophobic membranes (water vapor permeable membranes) A pair of dehumidifying modules 101 for absorbing the moisture contained in the room air flowing through the tube into the moisture absorbing liquid outside each of the tubes 103, a tank body 104 having a heater 105 for storing the moisture absorbing liquid, and circulating the moisture absorbing liquid. Feed pipe 106 and return pipe 107 for connecting the dehumidifying module 101 to the tank body 104, a cooler 108 for cooling the circulating hygroscopic liquid, a pump 109 provided in the feed pipe 106, There is a dehumidifier provided with a controller 110 for controlling a liquid flow rate (for example, see Patent Document 1).
[0003]
According to the dehumidifying device, during the dehumidifying operation for dehumidifying the room, the cooler 108 and the pump 109 are operated to send out the hygroscopic liquid (LiCl aqueous solution) stored in the tank main body 104 to the dehumidifying module 101, and It cools at 108 and circulates inside the container 102 outside each tube 103 of the dehumidification module 101. Then, the moisture contained in the room air flowing inside each tube 103 is absorbed by the hygroscopic liquid through the tube membrane to dehumidify the room. The hygroscopic liquid having a low concentration due to the water absorption returns to the tank main body 104 via the return pipe 107.
[0004]
Next, at the time of the regeneration operation for regenerating the moisture absorbing liquid in the tank main body 104 which has become low concentration by the water absorption, the heater 105 is operated without circulating the moisture absorbing liquid to heat the moisture absorbing liquid in the tank main body 104. Then, the moisture contained in the hygroscopic liquid is converted into steam and released into the atmosphere from the upper portion of the tank body 104, and the hygroscopic liquid is concentrated and regenerated by dehydration.
[0005]
[Patent Document 1]
JP-A-7-108127
[Problems to be solved by the invention]
However, in the above dehumidifier, when the hygroscopic liquid is pumped out by the pump 109, there is a disadvantage that the hydrophobic film of the tube 103 having a small strength is broken and causes liquid leakage.
[0007]
Therefore, an object of the present invention is to provide a humidity control apparatus and a humidity control exhaust system which can prevent the hydrophobic film from being damaged by the pressure of the hygroscopic liquid sent from the pump and can effectively prevent the liquid leak from the humidity control module. It is in.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a humidity control device according to claim 1 has a tank for storing a hygroscopic liquid, a liquid feed pipe having one end connected to the tank, an inlet side connected to the other end of the liquid feed pipe, Humidity control module using a water-permeable membrane, a return pipe having one end connected to the outlet side of the humidity control module and the other end connected to the tank, and a liquid absorption pipe provided in the liquid supply pipe, and a moisture absorbing liquid in the tank. Pump to send out the humidity control module side, and a liquid reservoir provided between the pump and the humidity control module of the liquid sending pipe and at a position higher than the humidity control module, and the inside of which is opened to the atmosphere. It is characterized by having.
[0009]
According to the humidity control apparatus of the first aspect, the moisture absorbent stored in the tank is sent out to the humidity control module by the pump, and the moisture absorbs from the air through the hydrophobic membrane to the moisture absorbent passing through the humidity control module. After absorbing the moisture, the moisture-absorbed liquid having absorbed the moisture in the humidity control module is returned to the tank via the return pipe. In this way, by continuously circulating the hygroscopic liquid in the order of the tank, the liquid supply pipe, the humidity control module, and the return pipe, for example, by regenerating the hygroscopic liquid returning to the tank by heating or the like, it is possible to continuously perform humidity control. . At this time, the liquid reservoir provided between the pump and the humidity control module of the liquid supply pipe and at a position higher than the humidity control module has an interior open to the atmosphere, so that the moisture absorbing liquid sent from the pump is discharged under atmospheric pressure. To the humidity control module from the sump due to the pressure difference between the sump and the humidity control module, so that the pressure of the hygroscopic liquid sent from the pump does not directly affect the humidity control module. It is possible to prevent the hydrophobic film of the humidity module from being damaged, and to effectively prevent liquid leakage from the humidity control module.
[0010]
The humidity control apparatus according to a second aspect of the present invention is the humidity control apparatus according to the first aspect, further comprising a bypass pipe for returning the hygroscopic liquid overflowing from the reservoir to the tank.
[0011]
According to the humidity control apparatus of the second aspect, since the hygroscopic liquid overflowing from the sump is returned to the tank through the bypass pipe, the flow rate of the liquid supplied by the pump is the maximum of the hygroscopic liquid circulating through the humidity control module. Even if the hygroscopic liquid overflows from the reservoir beyond the flow rate, it returns to the tank via the bypass pipe and the return pipe. Therefore, it is possible to prevent the liquid level inside the liquid reservoir from rising. Further, it is not necessary to accurately control the flow rate of the pump so that the hygroscopic liquid does not overflow from the reservoir, and it is not necessary to provide a float switch or the like.
[0012]
The humidity control device according to claim 3 is the humidity control device according to claim 1 or 2, wherein the liquid receiving tray is provided below the humidity control module and receives a hygroscopic liquid leaking from the humidity control module; And a liquid recovery pipe for returning the received moisture to the tank.
[0013]
According to the humidity control device of the third aspect, after receiving the hygroscopic liquid leaked from the humidity control module for some reason in the liquid receiving tray, the liquid is returned to the tank via the liquid recovery pipe, so that the liquid is received from the liquid receiving tray. The hygroscopic liquid can be reliably collected without overflowing.
[0014]
Further, the humidity control and exhaust system according to claim 4, which is a humidity control and exhaust system using the humidity control device, wherein the regeneration heater regenerates the humidity control device by heating a moisture absorbent that has absorbed moisture in the humidity control device. And an exhaust passage for guiding water vapor released from the moisture absorbing liquid by heating of the regeneration heater to an exhaust duct.
[0015]
According to the humidity control and exhaust system of the fourth aspect, the moisture absorbent is heated by the regenerating heater using the humidity control device capable of effectively preventing the liquid leakage from the humidity control module, and is released from the moisture absorbent by heating. By introducing water vapor to an exhaust duct through an exhaust passage and exhausting the air through the exhaust duct, for example, to the outside of the room, a drain tank for storing waste water generated by dehumidification is provided in the room, or the waste water accumulated in the drain tank is discarded. It is possible to realize a humidity control exhaust system that does not need to be performed.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a humidity control apparatus and a humidity control exhaust system according to the present invention will be described in detail with reference to the illustrated embodiments.
[0017]
(1st Embodiment)
FIG. 1 is a schematic configuration diagram of a dehumidifying device as an example of a humidity control device according to a first embodiment of the present invention, wherein 1 is a tank for storing a hygroscopic liquid 10, and 2 is a tank 1 via a first liquid feeding pipe 11 to the tank 1. And a pump 3 for pumping out the hygroscopic liquid 10 in the tank 1, a reservoir 3 connected to the pump 2 via a second liquid supply pipe 12, and a pump 4 for connecting the third liquid supply pipe 13 to the reservoir 3. The dehumidification module as a humidity control module is connected to the tank 1 via an inlet side and connected to the tank 1 via a return pipe 14 via an outlet.
[0018]
In the dehumidifying module 4, a plurality of flat tubes 20 made of a hydrophobic film are arranged in parallel, and the lower ends of the flat tubes 20 are connected by connecting portions 22 (connecting the second liquid supply pipes 12). The upper end of 20 is connected by a connecting portion 23 (to which the return pipe 14 is connected). The reservoir 3 is provided at a position higher than the dehumidifying module 4, and the interior of the reservoir 3 is open to the atmosphere. Further, a slit is provided between the plurality of flat tubes 20, and by blowing air to the slit of the dehumidifying module 4, the moisture absorption efficiency is improved. In this embodiment, an aqueous solution of lithium bromide (LiBr) is used as the moisture absorbing liquid 10.
[0019]
According to the dehumidifier having the above structure, the hygroscopic liquid 10 sent out from the tank 1 by the pump 2 is passed through the flat tube 20 of the dehumidifying module 4 through the reservoir 3 to form a hydrophobic film on the passing hygroscopic liquid. Dehumidifies by absorbing moisture from the air through the air.
[0020]
In this way, by circulating the hygroscopic liquid 10 in the order of the tank 1, the reservoir 3, and the dehumidifying module 14, and by regenerating the hygroscopic liquid 10 returning to the tank 1 by heating or the like, it is possible to continuously perform dehumidification. At this time, the liquid reservoir 3 provided at a position higher than the dehumidifying module 4 has its interior open to the atmosphere, and once returns the moisture absorbing liquid 10 sent from the pump 2 to the atmospheric pressure, the liquid reservoir 3 Since the liquid is supplied to the dehumidifying module 4 from the reservoir 3 by the pressure difference due to the height difference from the dehumidifying module 4, the pressure of the hygroscopic liquid 10 sent from the pump 2 is not directly applied to the dehumidifying module 4, so that the hydrophobic membrane by the pump pressure is used. , And liquid leakage from the dehumidifying module 4 can be effectively prevented.
[0021]
As the hydrophobic film, a fluorine film having a thickness of 10 to 20 μm is used to reduce the film resistance, and the practical withstand voltage is 0.05 to 0.1 kgf / cm ² (0.05 × 98 kPa to 0. 1 × 98 kPa). On the other hand, the pump pressure to be used is about 0.7 kgf / cm ² (0.7 × 98 kPa), and if there is no liquid reservoir 3, it exceeds the practical pressure resistance and causes liquid leakage. On the other hand, according to the dehumidifying apparatus of the first embodiment, the pressure applied to the hydrophobic membrane of the dehumidifying module 4 by the reservoir 3 is 0.05 to 0.1 kgf / cm ² (0.05 × 98 kPa— 0.1 × 98 kPa) or less, and can be operated at a practical withstand pressure or less.
[0022]
In the dehumidifying device, a liquid receiving tray 21 that receives the hygroscopic liquid 10 from the dehumidifying module 4 is disposed below the dehumidifying module 4. The liquid receiving tray 21 can receive the hygroscopic liquid leaked from the dehumidifying module 4 for some reason.
[0023]
(2nd Embodiment)
FIG. 2 is a schematic configuration diagram of a dehumidifier as an example of the humidity controller of the second embodiment of the present invention. The dehumidifier of the second embodiment has the same structure as the dehumidifier of the first embodiment except for a bypass pipe. The components have the same configuration, and the same components are denoted by the same reference numerals and description thereof is omitted.
[0024]
As shown in FIG. 2, the reservoir 3 and the return pipe 14 are connected by a bypass pipe 15. By doing so, the hygroscopic liquid 10 overflowing from the reservoir 3 is returned to the return pipe 14 via the bypass pipe 15, so that the liquid flow rate of the pump 2 is reduced to the maximum flow rate of the hygroscopic liquid 10 circulating through the dehumidifying module 4. Even if the moisture absorbing liquid 10 overflows from the reservoir, it returns to the tank 1 via the bypass pipe 15 and the return pipe 14.
[0025]
The dehumidifier of the second embodiment has the same effects as the dehumidifier of the first embodiment, and can prevent the liquid level inside the reservoir 3 from rising.
[0026]
In the dehumidifier of the second embodiment, the bypass pipe 15 is connected to the return pipe 14, but the bypass pipe may be directly connected to the tank.
[0027]
(Third embodiment)
FIG. 3 is a schematic configuration diagram of a dehumidifier as an example of a humidity controller according to a third embodiment of the present invention. The dehumidifier of the third embodiment has a second embodiment except for a liquid recovery pipe and a pipe connection part. The configuration is the same as that of the dehumidifier of the embodiment, and the same components are denoted by the same reference numerals and description thereof is omitted.
[0028]
As shown in FIG. 3, the dehumidification module 4 and the tank 1 are connected via a first return pipe 14A, a pipe connection part 5, and a second return pipe 14B. Further, the pipe connection part 5 and the reservoir 3 are connected by a bypass pipe 15. The outlet 24 of the liquid receiving tray 21 provided below the dehumidifying module 4 is connected to the pipe connection part 5 via the liquid recovery pipe 16.
[0029]
The dehumidifier of the third embodiment has the same effect as the dehumidifier of the second embodiment, and when the hygroscopic liquid leaks from the dehumidifying module for some reason, the leaked hygroscopic liquid is transferred to the liquid receiving tray 21. After receiving the liquid, the liquid is returned to the second return pipe 14B via the liquid recovery pipe 16 and the pipe connection portion 5, so that the liquid does not overflow from the liquid receiving tray 21 and the liquid can be reliably recovered.
[0030]
In the dehumidifier of the third embodiment, the bypass pipe 15 and the liquid recovery pipe 16 are connected to the pipe connection part 5, but the bypass pipe and the liquid recovery pipe may be directly connected to the tank.
[0031]
(Fourth embodiment)
FIG. 4 is a schematic configuration diagram of a humidity control and exhaust system using a dehumidifier according to a fourth embodiment of the present invention, wherein 1 is a tank for storing a hygroscopic liquid 10, and 2 is a tank 1 via a first liquid feed pipe 11. And a pump 3 for pumping out the hygroscopic liquid 10 in the tank 1, a reservoir 3 connected to the pump 2 via a second liquid supply pipe 12, and a pump 4 for connecting the third liquid supply pipe 13 to the reservoir 3. A dehumidification module as a humidity control module, the lower side of which is connected to the tank 1 via the first return pipe 14A, the pipe connection part 5, and the second return pipe 14B. The reservoir 3 and the pipe connection part 5 are connected by a bypass pipe 15. The outlet of a liquid receiving tray (not shown) provided on the lower side of the dehumidifying module 4 is connected to the pipe connection part 5 via a liquid recovery pipe 16.
[0032]
The dehumidifying module 4 has the same configuration as that of the third embodiment. The third liquid sending pipe 13 is connected to the lower end of the dehumidifying module, and the first return pipe 14A is connected to the upper end of each flat tube 20. . The reservoir 3 is provided at a position higher than the dehumidifying module 4, and the interior of the reservoir 3 is open to the atmosphere.
[0033]
Further, the dehumidifying module 4 is arranged in a casing 31 attached to the indoor side wall surface of the wall 33. Then, a blower fan 32 is disposed obliquely below the dehumidifying module 4 in the casing 31, and the air sucked in from the room through the dehumidifying module 4 by the blower fan 32 from the lower outlet 31 a of the casing 31. Blow into the room.
[0034]
An exhaust fan 34 is provided on the indoor side of the exhaust duct 30 penetrating the wall 33, and the exhaust fan 34 exhausts indoor air to perform ventilation.
[0035]
The lower end of the J-shaped branch 6 is connected to the lower side surface of the tank 1, and a second return pipe 14B is connected near the lower end of the branch 6. A reproducing section 7 is provided at the upper end of the branch section 6, and a reproducing heater 8 is disposed in the reproducing section 7. The liquid level of the hygroscopic liquid (the same level as the liquid level of the hygroscopic liquid 10 in the tank 1) is set substantially at a predetermined height in the regenerating section 7, and the regenerative heater 8 is always positioned above the liquid level of the hygroscopic liquid. It is located below. Further, the upper part of the regeneration unit 7 and the exhaust duct 30 are connected via the exhaust passage 9.
[0036]
In the humidity control and exhaust system having the above-described configuration, the moisture absorbing liquid 10 sent out from the tank 1 by the pump 2 is passed through the plurality of flat tubes 20 of the dehumidifying module 4 through the reservoir 3 so that the passing moisture absorbing liquid 10 becomes hydrophobic. Absorbs moisture from air through permeable membranes. Then, the hygroscopic liquid 10 was circulated in the order of the tank 1, the reservoir 3, and the dehumidifying module 14, and the hygroscopic liquid 10 returned to the tank 1 was heated by the regenerating heater 8 of the regenerating unit 7 and heated. Water vapor generated from the hygroscopic liquid 10 is discharged outside the room via the exhaust passage 9 and the exhaust duct 30. As described above, by heating and regenerating the hygroscopic liquid 10 in the regenerating section 7, it is possible to continuously perform dehumidification. At this time, the liquid reservoir 3 provided at a position higher than the dehumidifying module 4 is open to the atmosphere, and the moisture absorbing liquid 10 sent from the pump 2 is returned to the atmospheric pressure once and supplied to the dehumidifying module 4. Therefore, breakage of the hydrophobic film due to the pressure of the hygroscopic liquid 10 sent from the pump 2 can be prevented, and liquid leakage from the dehumidifying module 4 can be effectively prevented.
[0037]
As described above, by using the dehumidifier capable of effectively preventing the leakage of the liquid from the dehumidifying module 4, water vapor released from the hygroscopic liquid 10 by heating the hygroscopic liquid 10 by the regeneration heater 8 is discharged through the exhaust passage 9 through the exhaust duct 30. And exhausting the air to the outside of the room, it is possible to realize a humidity control and exhaust system that does not require the provision of a drainage tank for storing the wastewater generated by dehumidification in the room or the disposal of the wastewater collected in the drainage tank.
[0038]
FIG. 5 is a perspective view showing a specific configuration of the humidity control and exhaust system of the fourth embodiment, wherein 1 is a tank, 2 is a pump, 4 is a dehumidifying module, 6 is a branch portion 6, 8 is a heater, and 20 flats. A tube, 32 is a blower fan, and 34 is a ventilation fan.
[0039]
(Fifth embodiment)
FIG. 6 is a perspective view showing a specific configuration of a humidity control and exhaust system using a dehumidifier according to a fifth embodiment of the present invention. As shown in FIG. 6, a dehumidifying module 4 having a plurality of flat tubes 20 made of a hydrophobic film is arranged in a casing 31 attached to the indoor wall surface of the wall 33. Then, components other than the dehumidifying module 4 are arranged inside the outdoor 40. The dehumidification module 4 and the outside 40 are connected via a liquid feed pipe 44 and a return pipe 42 that pass through a hole 33 a provided in the wall 33. In addition, water vapor discharged from a regeneration unit (not shown) is discharged from the exhaust duct 43 to the outside of the room.
[0040]
As described above, by using the dehumidifying device capable of effectively preventing the liquid leakage from the dehumidifying module 4, the water vapor released from the hygroscopic liquid by the heating by the regeneration heater is guided to the exhaust duct 30 and exhausted, so that the dehumidification is achieved. It is possible to realize a humidity control and exhaust system that does not need to provide a drainage tank for storing generated wastewater in a room or to discard wastewater collected in the drainage tank.
[0041]
In the first to fifth embodiments, an aqueous solution of lithium bromide (LiBr) is used as the moisture absorbing solution. However, an aqueous solution of lithium chloride (LiCl) or calcium chloride (CaCl) may be used as the moisture absorbing solution. The combined aqueous solution combined may be used as a moisture absorbing liquid. Further, water may be used as the hygroscopic liquid.
[0042]
Further, in the first to fifth embodiments, the dehumidifying apparatus including the dehumidifying module 4 in which the plurality of flat tubes 20 made of the hydrophobic film are arranged in parallel has been described, but the configuration of the humidity controlling module is not limited to this. Any material may be used as long as it absorbs moisture from the air into the hygroscopic liquid through the hydrophobic film. Further, the present invention may be applied to a humidifying device using a humidifying module that releases moisture into the air via a hydrophobic film. In this case, the basic configuration is the same as that of the dehumidifying devices of the first to fifth embodiments, and a heating unit may be provided near the humidifying module as needed.
[0043]
【The invention's effect】
As is apparent from the above description, the humidity control apparatus according to the first aspect of the present invention connects the tank for storing the hygroscopic liquid to the input side of the humidity control module using the hydrophobic membrane through a liquid feed pipe, The output side of the tank is connected to the tank via a return pipe, and a pump for sending out the hygroscopic liquid in the tank to the humidity control module side is provided in the liquid supply pipe, and a pump is provided between the liquid supply pipe pump and the humidity control module. A liquid reservoir whose inside is open to the atmosphere is provided at a position higher than the wet module.
[0044]
Therefore, according to the humidity control apparatus of the first aspect of the present invention, the pump sends the hygroscopic liquid stored in the tank to the humidity control module, and the hygroscopic liquid is supplied to the tank, the liquid supply pipe, the humidity control module, and the return pipe in this order. By circulating, moisture is absorbed from the air into the hygroscopic liquid passing through the humidity control module through the hydrophobic membrane to perform humidity control. At this time, the sump provided between the pump of the liquid sending pipe and the humidity control module and at a position higher than the humidity control module is open to the atmosphere, so that the moisture-absorbing liquid sent from the pump is discharged under atmospheric pressure. The liquid is returned to the humidity control module and supplied to the humidity control module, so that damage to the hydrophobic membrane due to the pump pressure can be prevented, and liquid leakage from the humidity control module can be effectively prevented.
[0045]
According to the humidity control apparatus of the second aspect of the present invention, in the humidity control apparatus of the first aspect, the liquid absorbing flow rate of the pump is returned by returning the hygroscopic liquid overflowing from the reservoir to the tank via the bypass pipe. Even if the liquid exceeds the maximum flow rate of the hygroscopic liquid circulating through the humidity control module, the hygroscopic liquid overflows from the sump and returns to the tank via the bypass pipe and the return pipe, so that the liquid level inside the sump is prevented from rising. be able to.
[0046]
According to the humidity control apparatus of the third aspect of the present invention, in the humidity control apparatus of the first or second aspect, even if the moisture absorbent leaks from the humidity control module for some reason, the leaked moisture absorbent is subjected to humidity control. After the liquid is received by the liquid receiving tray provided below the module, the liquid is returned to the tank via the liquid collecting pipe, so that the liquid does not overflow from the liquid receiving tray, and the liquid can be reliably recovered.
[0047]
Further, a humidity control and exhaust system according to a fourth aspect of the present invention is the humidity control and exhaust system using the humidity control apparatus, wherein the regenerating heater heats the moisture absorbing liquid in the humidity control apparatus by a regeneration heater. The water vapor released from the liquid is guided to an exhaust duct through an exhaust passage.
[0048]
Therefore, according to the humidity control and exhaust system of the fourth aspect of the present invention, water vapor released from the hygroscopic liquid by heating the hygroscopic liquid by the regeneration heater is guided to the exhaust duct through the exhaust passage, and is exhausted, for example, outdoors. It is possible to realize a humidity control and exhaust system that does not need to provide a drainage tank for storing wastewater generated by humidity control in a room or to discard wastewater stored in the drainage tank.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a dehumidifier according to a first embodiment of the present invention.
FIG. 2 is a schematic configuration diagram of a dehumidifier according to a second embodiment of the present invention.
FIG. 3 is a schematic configuration diagram of a dehumidifier according to a third embodiment of the present invention.
FIG. 4 is a schematic configuration diagram of a humidity control exhaust system using a dehumidifier according to a fourth embodiment of the present invention.
FIG. 5 is a perspective view showing a specific configuration of the humidity control exhaust system.
FIG. 6 is a schematic configuration diagram of a humidity control exhaust system using a dehumidifier according to a fifth embodiment of the present invention.
FIG. 7 is a schematic configuration diagram of a conventional dehumidifier.
[Explanation of symbols]
1 ... tank,
2 ... pump,
3 ... The sump
4: Dehumidification module
5 ... Piping connection,
6 ... branch part,
7 Reproduction unit,
8. Regeneration heater,
9 ... exhaust passage,
10 ... hygroscopic liquid,
11 ... first liquid sending pipe,
12: second liquid supply pipe,
13: Third liquid feed pipe,
13 ... return pipe,
14A: first return pipe,
14B: second return pipe,
15 ... Bypass piping,
16 ... liquid recovery pipe,
20 ... flat tube,
21 ... Liquid pan
22 ... connection part,
30 ... exhaust duct,
31 ... casing,
32 ... Blower fan
33 ... wall,
34 ... Ventilation fan,
40 ... outside the room,
41 ... liquid feed pipe,
42 ... return pipe,
43 ... Exhaust duct.

Claims (4)

A tank (1) for storing a hygroscopic liquid,
A liquid sending pipe (11, 12, 13) having one end connected to the tank (1);
An inlet side connected to the other end of the liquid sending pipe (11, 12, 13), and a humidity control module (4) using a hydrophobic membrane;
A return pipe (14, 14A, 14B) having one end connected to the outlet side of the humidity control module (4) and the other end connected to the tank (1);
A pump (2) provided in the liquid feeding pipes (11, 12, 13) and for sending the hygroscopic liquid in the tank (1) to the humidity control module (4);
The liquid supply pipe (11, 12, 13) is provided between the pump (2) and the humidity control module (4) and at a position higher than the humidity control module (4), and the inside is opened to the atmosphere. A humidity control device comprising a reservoir (3). The humidity control device according to claim 1,
A humidity control device comprising a bypass pipe (15) for returning the hygroscopic liquid overflowing from the liquid sump (3) to the tank (1). The humidity control device according to claim 1 or 2,
A liquid receiving tray (21) provided below the humidity control module (4) and configured to receive a hygroscopic liquid leaking from the humidity control module (4);
A humidity control device comprising: a liquid recovery pipe (16) for returning the hygroscopic liquid received in the liquid receiving tray (21) to the tank (1). A humidity control exhaust system using the humidity control apparatus according to any one of claims 1 to 3,
A regeneration heater (8) for regenerating the hygroscopic liquid by heating the hygroscopic liquid having absorbed the moisture of the humidity control device;
An exhaust passage (9) for guiding water vapor released from the hygroscopic liquid by heating of the regeneration heater (8) to an exhaust duct (30).

Images