JP4372205B1 - Dehumidification system and building - Google Patents

Abstract

Provided is a dehumidification system capable of absorbing moisture again even when a humidity control material is saturated.
A dehumidification system S is provided with an air supply means Sm for taking air from the outdoors into the indoors and an exhaust means Rm for discharging air from the indoors to the outdoors.
In the underfloor space 15, a humidity control material 5 that absorbs or emits moisture in the air according to humidity is laid, and a dehumidifying device 4 connected to the air supply means Sm is installed.
Further, on the downstream side of the dehumidifying device 4, an underfloor discharge port 64 that leads to the underfloor space 15 is provided, and an air supply duct 65 that connects to the upper floor rooms 12, 12 is connected. Communication floors 17, 17 are provided in the floor 14 that partitions 11, 11.
[Selection] Figure 1

Description

  The present invention relates to a dehumidification system and a building for dehumidifying a living room.

  2. Description of the Related Art Conventionally, as a ventilation device for a building such as a house, one that takes air in an underfloor space into an indoor space is known.

  The underfloor space has less temperature fluctuation due to the season and day and night compared to the outdoor space and indoor space, so that air with less temperature fluctuation can be taken into the indoor space.

  There is also known a technique of taking in air humidity supplied to an indoor space after it has been adjusted in advance in an underfloor space or the like.

  For example, in Patent Document 1, a humidity control material storage chamber in which a humidity control material is stored is installed in an underfloor space, and a ventilation cylinder connected to the indoor space is erected in the center of the humidity control material storage chamber. Discloses a ventilation / humidity control device that sends air into the indoor space via the humidity control chamber or the ventilation cylinder.

According to this structure, the humidity control capability of a humidity control material can be exhibited efficiently, and a humidity control function can be improved.
JP 2003-105879 A

  However, the above-described configuration of Patent Document 1 has a problem that moisture cannot be absorbed again once the humidity control material is saturated at a high humidity.

  Therefore, an object of the present invention is to provide a dehumidification system that can absorb moisture again even if the humidity control material is saturated, and a building including the dehumidification system.

  In order to achieve the above object, a dehumidification system of the present invention is a dehumidification system comprising an air supply means for taking air from the outdoors into an indoor space, and the underfloor space absorbs or emits moisture in the air according to the humidity. A humidity control material is laid, and a dehumidifying device connected to the air supply means is installed.

  In addition, an underfloor discharge port leading to the underfloor space is provided on the downstream side of the dehumidifying device, and an air supply duct connected to the upper floor room is connected, and the floor separating the underfloor space and the lower floor room communicates with the floor. A mouth is preferably provided.

Further, at night, the dehumidifying device is operated to dissipate moisture absorbed by the humidity control material and dehumidify indoors , and during the daytime, the dehumidification device is stopped and moisture is controlled by the humidity control material. It is preferable to dehumidify indoors by absorbing water.

  And the building of this invention is equipped with one of above-mentioned dehumidification systems, It is characterized by the above-mentioned.

  As described above, the dehumidification system of the present invention is a dehumidification system including an air supply means, and a humidity control material that absorbs or emits moisture in the air according to the humidity is laid in the underfloor space, and A dehumidifier connected to the air means is installed.

  Therefore, even if the humidity control material is saturated, the moisture can be absorbed again by releasing the moisture by the dehumidifying device.

  In addition, an underfloor discharge port that leads to the underfloor space is provided on the downstream side of the dehumidifier, and an air supply duct that connects to the upper floor room is connected to the floor that separates the underfloor space from the lower floor room. Is provided, the room on the lower floor can be dehumidified without providing an air supply duct in the underfloor space.

  Furthermore, at night, the dehumidifier is operated to dissipate the moisture absorbed by the humidity control material, and the upper floor and lower floor rooms are dehumidified. By absorbing moisture with the wet material and dehumidifying the upper floor and lower floor rooms, the dehumidifier can be operated at night when electricity costs are low, and the operating costs can be reduced. The water can be absorbed again during the daytime of the next day.

  And since the building of this invention is equipped with one of the above-mentioned dehumidification systems, even if a humidity control material is saturated, moisture can be absorbed again by making it dehydrated by a dehumidifier, so that the humidity is high. It becomes a comfortable building even at the time.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  First, the whole structure of the unit building 1 as a building provided with the dehumidification system S of this invention is demonstrated using FIG.

  As shown in FIG. 1, a unit building 1 as a building of the present invention includes first-floor rooms 11 and 11, second-floor rooms 12 and 12, and an open space 13 in which a hallway, a staircase, and the like are provided. ing.

  Partitions 110 and 120 are installed between the first-floor rooms 11 and 11 and between the second-floor rooms 12 and 12. The partitions 110 and 120 are provided with vents (not shown) such as a louver. It has been.

  Similarly, a partition wall 130 is installed between the first-floor room 11 and the second-floor room 12 and the ventilated space 13, and the partition wall 130 is also provided with a ventilation path (not shown) such as a louver. ing.

  A ceiling back space 16 is formed between the ceiling 11a of the first floor living room 11 and the floor 12a of the second floor living room 12.

  Further, an underfloor space 15 surrounded by a foundation via a floor 14 is formed below the ventilated space 13 and the first floor living rooms 11, 11.

  The floor 14 is formed with communication ports 17, 17 that allow the living rooms 11, 11 and the underfloor space 15 to communicate with each other, and a communication port 18 that communicates the blow-off space 13 with the blower connection duct 66 that is connected to the blower 3. ing.

  And in the underfloor space 15 of the unit building 1 of this Embodiment, the filter box 2 which filters the air taken in from the outdoors, and the taken-in air are forced to the first floor living room 11 and the second floor living room 12 A dehumidifying system S is configured by installing a blowing device 3 for sending, a dehumidifying device 4 that removes moisture in the taken-in air, and a humidity control material 5 that absorbs or emits moisture in the air according to humidity. ing.

  The dehumidification system S is a ventilation system classified as so-called first-class ventilation with a dehumidification function, and both air supply and exhaust are forcibly performed by a machine by a blower 3 described later.

  And the air supply means Sm is comprised by the external air intake duct 61, the filter box 2, the ventilation connection duct 62, the ventilation apparatus 3, the dehumidification connection duct 63, the dehumidification apparatus 4, the underfloor discharge port 64, and the supply duct 65.

  Similarly, the ventilation means Rm is comprised by the ventilation connection duct 66, the air blower 3, and the inside air discharge duct 67. FIG.

  An outside air intake duct 61 connected to the outside is connected to the inflow side of the filter box 2 and arranged in the outer wall 19, and a ventilation connection duct 62 connected to the upstream side of the air supply path of the blower 3 is connected to the outflow side. Is done.

  The blower 3 is a so-called heat exchange ventilation fan, and the inside of the housing is partitioned into an air supply path and an exhaust path, and a heat exchange means is disposed between the air supply path and the exhaust path. A blower fan is installed in the airway.

  This heat exchanging means cools the air flowing in the air supply passage with the cool heat exhausted from the exhaust passage in summer, and heats the air flowing in the air supply passage with the warm heat exhausted from the exhaust passage in winter. Thus, the heat of the exhaust can be used effectively.

  Further, a dehumidifying connection duct 63 connected to the upstream side of the dehumidifying device 4 is connected to the downstream side of the air supply path of the blower 3.

  The dehumidifying device 4 has a branching function for branching the air blown from the blower 3 and a dehumidifying function for dehumidifying the air, such as a cooling method, a compression method, an adsorption method, an absorption method, and a hybrid method. Either method can be applied.

  In addition, as this dehumidifier 4, what has the air conditioning function which adjusts the temperature of the air ventilated from the air blower 3 other than a branch function or a dehumidification function can also be used.

  The dehumidifying device 4 of the present embodiment is provided with an underfloor discharge port 64 leading to the underfloor space 15 on the downstream side connected to the first floor living room 11 and the second floor living room 12 and to the second floor living room 12. An air supply duct 65 is connected.

  The underfloor discharge port 64 opens toward the underfloor space 15, and the air blown into the underfloor space 15 is indirectly introduced into the first floor room 11, 11 through the communication ports 17, 17.

  Therefore, since the air blown into the underfloor space 15 in this way comes into contact with the humidity control material 5 laid in the underfloor space 15, moisture is absorbed or diffused by the humidity control material 5 so that the humidity is appropriate. In the state adjusted to, it is introduced into the rooms 11 on the first floor.

  In addition, since the air supply duct 65 branches off in the ceiling space 16 and is connected to the second floor rooms 12 and 12 respectively, the air blown into the air supply duct 65 directly flows into the second floor room 12 and 12. 12 is introduced.

  Further, the air introduced into the first-floor rooms 11, 11 and the second-floor rooms 12, 12 is taken into the blower 3 through the blower connection duct 66 from the communication port 18 provided in the blowout space 13, It is forcibly discharged outside through the inside air discharge duct 67.

  The humidity control material 5 of the present embodiment adjusts the amount of moisture in the air by absorbing or diffusing moisture in the granular material. Zeolite, silica gel, tobermorite, diatomaceous earth, etc. are used as materials. Can be used.

  Next, the control mode of the dehumidification system S of this Embodiment is demonstrated using FIG.

  First, a control mode for operating the dehumidifier 4 and the blower 3 at night will be described with reference to FIG.

  At night, by operating the dehumidifier 4 and the blower 3, the moisture absorbed by the humidity control material 5 is diffused while dehumidifying the room 11 on the first floor and the room 12 on the second floor.

  That is, outdoor air taken in through the outside air intake duct 61 by operating the blower 3 is removed by the filter box 2 and then introduced into the blower 3 through the blower connection duct 62.

  In the blower 3, air cooled by exchanging heat with the exhaust is introduced into the dehumidifier 4 through the dehumidifying connection duct 63, moisture is removed in the dehumidifier 4, and the humidity is greatly reduced.

  A part of the air whose humidity is greatly reduced is introduced into the underfloor space 15 through the underfloor discharge port 64, and the remaining part is introduced into the second floor rooms 12 and 12 through the air supply duct 65.

  Further, the air introduced into the underfloor space 15 comes into contact with the humidity control material 5 that has absorbed the moisture in the air during the daytime, and the moisture absorbed by the humidity control material 5 is released to slightly increase the humidity. It will be in the state.

  Subsequently, the air whose humidity has been slightly increased is introduced into the first floor rooms 11 and 11 through the communication ports 17 and 17.

  Therefore, air with a slightly reduced humidity is introduced into the first floor rooms 11 and 11, and air with a greatly reduced humidity is introduced into the second floor rooms 12 and 12, thereby providing a comfortable space.

  The air introduced into the first-floor rooms 11, 11 and the second-floor rooms 12, 12 is taken into the blower connection duct 66 from the communication port 18 via the blow-out space 13, and passes through the blower 3. After exchanging heat with the supply air, the air is discharged from the inside air discharge duct 67 to the outside.

  Next, a control mode in which only the blower 3 is operated without operating the dehumidifier 4 in the daytime will be described with reference to FIG.

  During the daytime, the air conditioner 11 is operated without operating the dehumidifier 4, and the room 11 on the first floor and the room 12 on the second floor are dehumidified by the humidity control material 5.

  That is, outdoor air taken in through the outside air intake duct 61 by operating the blower 3 is removed by the filter box 2 and then introduced into the blower 3 through the blower connection duct 62.

  The air cooled by exchanging heat with the exhaust in the blower 3 is introduced into the dehumidifier 4 through the dehumidifying connection duct 63. However, the moisture is not removed in the dehumidifier 4 and the humidity is maintained. .

  A part of the air in a state where the humidity is maintained is introduced into the underfloor space 15 through the underfloor discharge port 64, and the remaining part is introduced into the second floor living rooms 12 and 12 through the air supply duct 65.

  Furthermore, the air introduced into the underfloor space 15 comes into contact with the humidity control material 5 that has diffused moisture into the air at night, and the humidity is absorbed by the humidity control material 5 so that the humidity is lowered. .

  Subsequently, the air whose humidity has been lowered is introduced into the living rooms 11 and 11 on the first floor through the communication ports 17 and 17.

  Therefore, air with reduced humidity is introduced into the first-floor rooms 11 and 11 to provide a comfortable space.

  The air introduced into the first-floor rooms 11 and 11 and the second-floor rooms 12 and 12 is blown out space 13, communication port 18, blower connection duct 66, blower 3, and inside air discharge duct 67 as in the nighttime. , Discharged to the outdoors via.

  Next, the operation of the dehumidifying system S of the present embodiment will be described.

  Thus, the dehumidification system S of this Embodiment is the dehumidification system S provided with the air supply means Sm, Comprising: In the underfloor space 15, the moisture-conditioning material 5 which absorbs or emits the water | moisture content in air according to humidity. Is installed, and a dehumidifying device 4 connected to the air supply means Sm is installed.

  Therefore, even if the humidity control material 5 is saturated, the moisture can be absorbed again by releasing the moisture by the dehumidifying device 4.

  That is, in general, the humidity control material 5 can absorb and divide moisture in the air. However, in a case where a high humidity state continues for a long time in summer or the like, it becomes difficult to diverge the moisture once absorbed. Almost no moisture can be absorbed.

  Therefore, by dehumidifying the moisture conditioning material 5 that has absorbed moisture from the under-floor discharge port 64 of the dehumidifying device 4 and blowing low-humidity air, the moisture absorbed by the humidity conditioning material 5 is diffused. And can be dehumidified again.

  In this case, the air introduced into the first floor room 11, 11 from the communication port 17, 17 through the underfloor space 15 is introduced in a state where moisture is absorbed from the humidity control material 5, so the dehumidifier 4 Then, it is necessary to reduce the humidity accordingly.

  In addition, an underfloor discharge port 64 that leads to the underfloor space 15 is provided on the downstream side of the dehumidifying device 4, and an air supply duct 65 that is connected to the second floor rooms 12, 12 is connected to the underfloor space 15 and the first floor room. The floors 11 and 11 are provided with communication ports 17 and 17 so that the first floor rooms 11 and 11 can be dehumidified without providing an air supply duct in the underfloor space 15.

  Therefore, the reduction of the air supply duct in the underfloor space 15 facilitates maintenance and inspection, and can reduce the cost for installing the dehumidifying system S.

  Further, at night, the dehumidifying device 4 is operated to dissipate the moisture absorbed by the humidity control material 5 and dehumidify the rooms 12 and 12 on the second floor and the rooms 11 and 11 on the first floor. The dehumidifier 4 is stopped and the blower 3 is operated to absorb moisture by the humidity control material 5 to dehumidify the rooms 12 and 12 on the second floor and the rooms 11 and 11 on the first floor. The operating cost can be reduced by operating the dehumidifying device 4 at night, and the moisture of the saturated humidity control material 5 can be diffused to absorb the moisture again during the daytime of the next day.

  As described above, the humidity control material 5 is regenerated while being dehumidified by the dehumidifying device 4 at night, and the dehumidification is performed by the regenerated humidity control material 5 during the daytime, so that efficient dehumidification can be performed while reducing operating costs. System S becomes.

  FIG. 4 shows a graph comparing the dehumidifying performance and the operating cost with respect to the results of the experiment conducted by setting four types of dehumidifying conditions in order to explain the operation cost suppressing effect and the dehumidifying effect described above.

In this experiment, the dehumidifying capacity of the dehumidifying device 4 is 1000 (cc / h), the particle diameter of the humidity control material (zeolite) is 1 to 10 (cm), and the moisture absorption is 100 (g / under-floor space m ² ). Carried out.

  First, when no dehumidification is performed, the cost is naturally 0 (yen). On the other hand, the average relative humidity during the daytime is 81 (%) and the average relative humidity during the nighttime is 78 (%), which greatly exceeds 70 (%), which is considered uncomfortable in human experience. felt.

  Next, when the dehumidifier 4 is operated at the set humidity 70 (%) both in the daytime and at night, the cost is as high as 13400 (yen / year). On the other hand, of course, the average relative humidity during the daytime and at night is 70 (%), which is comfortable.

  Further, when the dehumidifier 4 is operated only at night without dehumidifying during the day, the cost is as low as 4000 (yen / year). On the other hand, the average relative humidity during the day is 73 (%) and the average relative humidity during the night is 69 (%).

  Finally, when the humidity control device 5 is used to control the humidity without operating the dehumidifier 4 during the daytime and the dehumidifier 4 is operated at night, the cost is as low as 4000 (yen / year). In addition, the average relative humidity during the day is 68 (%) and the average relative humidity during the night is 64 (%), which is comfortable both in the daytime and at night.

  As described above, when the dehumidifying device 4 is operated only at night without dehumidifying during the day, and when the dehumidifying device 4 is operated at night without adjusting the dehumidifying device 4 with the humidity control material 5 and operating at night. , It can be seen that there is a dehumidifying effect of 5% by laying the humidity control material 5.

  Moreover, the operating cost (running cost) is 9400 (yen) saved per year as compared to the case where the dehumidifying device 4 is operated both daytime and nighttime.

  And since the unit building 1 of this Embodiment is equipped with the above-mentioned dehumidification system S, even if the humidity control material 5 is saturated, it can absorb a water | moisture content again by making a dehumidification apparatus 4 diverge a water | moisture content. The unit building 1 is comfortable even in high humidity periods.

  Further, the dehumidifying system S of the present embodiment includes the humidity control material 5, and the humidity control material 5 can reduce the width of the vertical movement of short-term humidity.

  Although the best embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are possible. Are included in the present invention.

  For example, in the above-described embodiment, the case where the dehumidifying device 4 is operated at night as the control mode and the dehumidifying device 4 is stopped during the day has been described. However, the present invention is not limited to this. The device 4 can also be operated.

  Moreover, although the said embodiment demonstrated the case where the dehumidification system S was applied to the unit building 1 as a building, it is not limited to this, It can apply also to the building of a frame structure.

It is explanatory drawing explaining the structure of the building which has the dehumidification system of the best embodiment of this invention. It is explanatory drawing explaining the night control mode. It is explanatory drawing explaining the daytime control mode. It is a graph explaining the operating cost per year of a dehumidification system.

Explanation of symbols

S Dehumidification system Sm Air supply means Rm Exhaust means 1 Unit building (building)
11 1st floor room (lower floor room)
12 Second-floor room (upper-floor room)
14 Floor 15 Underfloor space 17, 18 Communication port 2 Filter box 3 Blower 4 Dehumidifier 5 Humidity control material 64 Underfloor outlet 65 Air supply duct

Claims (3)

A dehumidification system having an air supply means for taking air from the outside into the interior,
In the underfloor space, a humidity control material that absorbs or emits moisture in the air according to humidity is laid, and a dehumidifying device connected to the air supply means is installed,
At night, operate the dehumidifying device to dissipate the moisture absorbed by the humidity control material and dehumidify indoors,
In the daytime, the dehumidifying system is characterized in that the dehumidifying device is stopped and moisture is absorbed by the humidity control material to dehumidify the interior. On the downstream side of the dehumidifying device, an underfloor discharge port leading to the underfloor space is provided, and an air supply duct connected to the upper floor room is connected,
The dehumidification system according to claim 1 , wherein a communication port is provided in the floor that partitions the underfloor space and the lower floor room. A building comprising the dehumidification system according to claim 1 or 2 .

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