JP2004353216A - Ventilation system in residence - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation system in residence capable of eliminating an air pollutant (harmful substance) contained in the air taken into the residence from the outside in order to perform the maintenance/ purification of an environment in the residence by preventing the deterioration of the environment in the residence. <P>SOLUTION: The ventilation system in the residence is equipped with a space 2 in under floor of a first floor, an open air introduction inlet 10 provided to a side wall forming the space in under floor of the first floor, an attic space 3 having a discharging port 11, a pit section 4 connecting to the attic space 3 passing through up and down floors on the space in under floor of the first floor, air supplying ports 12 provided in the floor of the first floor, a habitable room 5 of the first floor having exhaust ports 13 connecting to the pit section 4, air supplying ports 14 connecting to the pit section 4 and a habitable room 6 of a second floor having exhaust ports 15 connecting to the attic space 3, and open air purifying sections 8 filled with porous absorbing materials passing through the air to be introduced are arranged in the space 2 in under floor of the first floor. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a ventilation system in a house, and more particularly to a ventilation system in a house that achieves maintenance / purification of an environment in the house by supplying purified air to the house.
[0002]
[Prior art]
The recent development of highly airtight housing has led to a problem of deterioration of the environment in the house due to insufficient ventilation, while improving air conditioning efficiency.
Due to the deterioration of the environment in the house, sick house syndrome caused by a chemical substance contained in wallpaper, plywood adhesive or the like has become a problem. In order to remove volatile chemical substances that cause the sick house syndrome, various methods using charcoal or other adsorption properties have been proposed (for example, Patent Document 1 or Patent Document 2).
[0003]
In Patent Literature 1, for example, 1) a charcoal sheet is attached to a wall, ceiling, or floor facing the outside air of a building, or 2) a charcoal layer is provided in the middle of a pipe of an air conditioner that allows air to flow in a house. 3) A method is disclosed in which fine charcoal powder is mixed into an interior material such as a vinyl cloth of a house, an adhesive, a paint, and the like. The charcoal sheet or the like adsorbs volatile chemicals, so that the volatile chemicals can be prevented from volatilizing and diffusing in the house.
[0004]
Further, Patent Literature 2 discloses a method of forming a coating film layer containing charcoal powder on the inner surface of a duct of an air conditioner that allows air to flow in a house. The layer of the paint film containing the charcoal powder adsorbs volatile chemicals such as ammonia and formaldehyde in the air passing through the duct and can prevent volatilization and diffusion in the house.
[0005]
[Patent Document 1]
JP-A-11-200646 ([0028] to [0029], [0035] to [0036], see FIG. 1)
[Patent Document 2]
JP-A-2001-248886 ([0016] to [0018]; see FIGS. 1 and 6)
[0006]
[Problems to be solved by the invention]
However, these inventions have been made in consideration of the removal of volatile chemical substances generated in a house, and the measures against harmful substances invading from outside the house have not been taken completely.
[0007]
In particular, in recent years, due to the deterioration of the urban environment, air contains various air pollutants (hazardous substances) such as sulfur dioxide, nitrogen oxides, carbon monoxide, and suspended particulate matter. Is growing.
[0008]
In such a situation, opening the window and ventilating it is not preferable because it draws harmful substances into the house, but it is not possible to close the window completely.
In addition, in the case of a general house, the air inside the house is replaced by natural convection, so even if the windows are closed, air containing air pollutants (hazardous substances) etc. will gradually flow from inside the house. It will be drawn into.
As a result, the environment inside the house deteriorates, and there is a concern that the health of residents will be adversely affected.
[0009]
Therefore, the present invention mainly removes air pollutants (hazardous substances) contained in air taken into a house from the outside in order to prevent deterioration of the house environment and maintain and purify the house environment. An object of the present invention is to provide a ventilation system in a house.
[0010]
[Means for Solving the Problems]
The present invention is configured to solve the above-mentioned problem, and the invention according to claim 1 includes a first floor underfloor space, an outside air inlet provided on a side wall forming the first floor underfloor space, and a discharge port. An attic space with an outlet, a pit communicating with the attic space through the upper and lower floors on the underfloor space, an air supply port provided on the first floor, and an exhaust port communicating with the pit. A ventilation system in a house comprising: a first-floor living room comprising: an air supply opening communicating with the pit portion; and a second or more living room having an exhaust opening communicating with the attic space, wherein the first-floor underfloor space comprises: It is characterized in that an outside air purifying section filled with a porous adsorbent for passing introduced outside air is arranged.
[0011]
According to this configuration, the outside air introduced into the house from the outside air inlet passes through the outside air purification unit filled with the porous adsorbent, and is then supplied as purified air into the living room on the first floor from the air supply opening. And is discharged to the pit from the discharge port. Further, the air discharged into the pit portion is ultimately guided to the attic space and discharged to the outside while being introduced into the living room on the second floor or more. Since the porous adsorbent adsorbs harmful substances contained in the outside air, clean air is supplied to the living room. Further, since the porous adsorbent also has a function of adjusting humidity, it is possible to prevent dew condensation and generation of mold in the living room. By arranging the outside air purifying section in the first floor underfloor space, unnecessary space in the first floor underfloor space can be effectively used without getting wet with rainwater or the like.
The “side wall forming the first floor underfloor space” refers to a rising portion of a foundation, a base, or the like. The “room on the second floor or higher” means a room not on the first floor, and includes rooms on the third and fourth floors. The “room” refers to not only a living space such as a living room or a bedroom, but also any space in a house including an entrance, a corridor, a staircase, a washroom, a toilet, a storage room, and the like.
[0012]
According to a second aspect of the present invention, in the ventilation system for a house according to the first aspect, the outside air introduction port communicates the underfloor space on the first floor with the outside, and an air supply port of the first floor living room is connected to the first floor. The floor room and the first floor underfloor space communicate with each other, and the outside air purification unit covers the air supply port of the first floor room.
[0013]
According to this configuration, the outside air introduced from the outside air introduction port into the first floor underfloor space passes through the outside air purification unit filled with the porous adsorbent, and then is purified air from the air supply port to the first floor living room. Supplied. Since the porous adsorbent adsorbs harmful substances contained in the outside air, clean air is reliably supplied to the living room. In addition, since the outside air purifying unit may be disposed so as to cover the air supply port, the outside air purifying unit can be easily attached with a simple configuration.
[0014]
According to a third aspect of the present invention, in the ventilation system for a house according to the second aspect, a heating means for warming the outside air introduced from the outside air inlet is provided in the space under the first floor.
[0015]
According to such a configuration, the outside air warmed by the heating means in the underfloor space on the first floor expands, becomes lighter, and rises in the house. Therefore, the generation of an upward airflow in the house is promoted, and the ventilation in the house is more effectively promoted. In addition, in winter, it can assist in heating the house.
[0016]
According to a fourth aspect of the present invention, in the residential ventilation system according to the first aspect, the outside air purification unit is connected to the outside air introduction port by a pipe, and is connected to the supply port of the first floor living room by a pipe. It is characterized by being connected.
[0017]
According to this configuration, the outside air is introduced from the outside air introduction port to the outside air purification unit via the pipe, and thereafter, is supplied as purified air from the air supply port to the first floor living room via the pipe. That is, the outside air does not come into direct contact with the air in the first floor underfloor space or the wood part forming the first floor underfloor space until it is supplied to the first floor living room as purified air. Therefore, it is possible to prevent fresh contamination of the air in the space under the first floor and supply clean air to the living room on the first floor.
[0018]
According to a fifth aspect of the present invention, in the ventilation system for a house according to the fourth aspect, a heating unit for warming the outside air introduced from the outside air inlet is provided in the outside air purification unit.
[0019]
According to this configuration, the outside air heated by the heating means in the outside air purifying section expands, becomes lighter, and rises in the house. Therefore, the generation of an upward airflow in the house is promoted, and the ventilation in the house is more effectively promoted. In addition, in winter, it can assist in heating the house.
[0020]
The invention according to claim 6 is the ventilation system in a house according to any one of claims 1 to 5, wherein the first-floor living room or the second-floor or higher living room is partitioned by a partition. Is characterized by being provided with a communication hole for communicating the living rooms partitioned by this.
[0021]
According to such a configuration, even in a living room at a position that is not adjacent to the pit portion, air can be discharged to the pit portion through another living room or introduced from the pit portion.
[0022]
According to a seventh aspect of the present invention, in the ventilation system for a house according to any one of the first to sixth aspects, an air supply means for forcibly introducing the outside air into the house is provided. And
[0023]
According to such a configuration, outside air can be reliably introduced into the house. Therefore, compared with the case where natural convection is used, the inside of the house can be efficiently ventilated, and the environment in the house can be maintained and purified. In addition, in the ventilation system in a house of Claim 4, it is preferable to provide in the piping provided between the outside air inlet and the outside air purification part. This is because the presence of the air supply means in the outside air flow passage in front of the outside air purification section makes it easier to introduce outside air.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of an in-home ventilation system according to the present invention will be described in detail with reference to the drawings as appropriate.
In the description of the embodiments, the same components will be denoted by the same reference symbols, without redundant description.
[0025]
[First Embodiment]
First, a residential ventilation system according to a first embodiment of the present invention will be described with reference to FIG. In the drawings to be referred to, FIG. 1 is a schematic configuration diagram of a house provided with an in-house ventilation system according to a first embodiment.
[0026]
As shown in FIG. 1, a house (hereinafter, referred to as “house”) 1 equipped with a ventilation system in a house has a pit portion that forms a first floor underfloor space 2 and a flow path for guiding introduced outside air to an attic space 3. 4, a first floor living room 5 and a second floor living room 6 adjacent to the pit portion 3, and an outside air inlet 10 for introducing outside air. The “second floor living room” corresponds to “the second floor or more living room” in the claims.
[0027]
An outside air inlet 10 is provided through a side wall that forms the first floor underfloor space 2. The outside air introduced from the outside air inlet 10 into the first floor underfloor space 2 is introduced into the first floor living room 5 as purified air by passing through an outside air purification unit 8 described later.
[0028]
The pit portion 4 is a space that penetrates the first floor and the second floor above the first floor underfloor space 2 and communicates with the attic space 3. For example, a staircase, a stairwell, a vertical duct, or a ventilation tube in a house for cold regions may be used.
The attic space 3 has a discharge port 11 for finally discharging the air collected from the pit portion 4 and the second floor living room 6 to the outside. Further, a duct 11a is provided in the discharge port 11 so that air can be collected.
[0029]
The first floor living room 5 is provided with an air supply port 12 communicating with the underfloor space 2 on the first floor and an exhaust port 13 communicating with the pit 4. The air supply port 12 is covered with the outside air purification unit 8. . The second floor living room 6 is provided with an air supply port 14 communicating with the pit 4 and an exhaust port 15 communicating with the attic space. In this way, by allowing the spaces to communicate with each other, an air flow path can be secured.
[0030]
In addition, the first floor living room 5 (or the second floor living room 6) can be partitioned by the partition 7 to form the first floor living room 5a, 5b (or the second floor living room 6a, 6b). In this case, the air supply port 12 is provided in each of the first floor rooms 5a and 5b, the exhaust port 15 is provided in each of the second floor rooms 6a and 6b, and the communication hole 7a is provided in each partition 7 so that the first floor rooms 5a and 5b are provided. In addition, an air flow path is secured in the second-floor rooms 6a and 6b.
An undercut of a door or the like can be used for the exhaust port 13 and the air supply port 14 communicating with the pit portion 4 or the communication hole 7a.
[0031]
FIG. 2 is a schematic perspective view of the outside air purification unit.
As shown in FIG. 2, the outside air purification unit 8 is configured by a plurality of substantially rectangular parallelepiped tares 8a made of a nonwoven fabric, and the tare 8a is filled with a porous adsorbent 8b. By connecting the tares 8 a vertically and horizontally according to the area of the air supply port 12, the outside air purification unit 8 can be provided so as to cover the air supply port 12.
[0032]
In the present embodiment, the outside air purification unit 8 is configured such that outside air introduced into the first floor underfloor space 2 passes through and reaches the first floor living room 5. Therefore, the size of the mesh of the nonwoven fabric is such that the outside air in the underfloor space 2 can efficiently pass therethrough, and the porous adsorbent 8b does not spill. In addition, the material which comprises the tare 8a can substitute suitably if it is a material excellent in air permeability, durability, and workability like a nonwoven fabric. Further, the shape and size of the tare 8a are not particularly limited, and can be appropriately changed. Furthermore, it is also possible to adopt a configuration in which a plurality of purification processing units 8 are provided in the vertical direction so that the outside air passes through the purification processing unit 8 a plurality of times. By doing so, more purified air is supplied into the first floor living room 5 and the like.
[0033]
FIG. 3 is an example of attachment of the outside air purification unit to the air supply port.
As shown in FIG. 3, the tare 8a is fixed to the side of the floor joist with staples or the like. However, the mounting mode of the tare 8a is not particularly limited, and the tare 8a may be directly fixed to the lower surface of the floor plate, or the outside air purification unit 8 is formed in a plate shape, and this is directly mounted on the lower surface of the floor plate. You may do so.
[0034]
The porous adsorbent 8b is a porous material having a large specific surface area (surface area per gram) and excellent adsorption performance. Bamboo charcoal is suitably used for the porous adsorbent 8b. However, the porous adsorbent 8b is not particularly limited. For example, charcoal, activated carbon, and zeolite can be used.
In this embodiment, it is recommended to use bamboo charcoal as the porous adsorbent 8b. Therefore, bamboo charcoal will be described first, followed by charcoal and activated carbon.
[0035]
<Bamboo charcoal>
Bamboo charcoal has numerous holes inside. These holes are honeycomb (honeycomb) shaped tubes, all open to the outside. The diameter of the honeycomb-shaped tube varies in size, and more specifically, exists in a state in which a diameter of one hundredth of a millimeter is mixed with a diameter of one thousandth of a millimeter.
[0036]
Therefore, bamboo charcoal has a specific surface area of 300 m. ² Above, the adsorption power is 50 to 60 g / m ² It is. Compared to Bincho charcoal, it is said that the specific surface area is twice and the adsorbing power is 10 times, and the adsorbing power of bamboo charcoal is very large.
[0037]
In addition, all the pores of bamboo charcoal are open to the outside world, so that not only air and water but also nutrients can be taken into the pores from outside, creating an environment inside the pores where microorganisms can easily grow. Have been. In fact, it is known that various fungi such as filamentous fungi in large pores, actinomycetes in small pores, and bacteria in finer pores segregate. ing.
[0038]
When the bamboo charcoal having such characteristics is used as the porous adsorbent 7b, the following operations and effects can be obtained.
[0039]
(Removal of harmful substances)
On the surface of the bamboo charcoal pores, microorganisms have formed and a microbial membrane has been formed.Therefore, impurities passing through the outer periphery and inside the pores of the bamboo charcoal are adsorbed on the microbial membrane and decomposed. You. Here, the impurities refer to, for example, organic substances that cause odor, and harmful substances such as various harmful chemical substances and air pollutants.
[0040]
Therefore, the air from which the harmful substances have been removed is supplied into the house, and the environment in the house can be maintained and improved. In particular, bamboo charcoal easily adsorbs ammonia (odorous components) and also adsorbs pet smells and tobacco smoke, etc., so it is placed in the air outlets 13, 15, the air supply port 14, etc., which are air flow paths. As a result, the air in the house can be efficiently purified.
[0041]
(Humidity adjustment function)
Bamboo charcoal has a honeycomb structure, so when the humidity is high such as during the rainy season, the moisture in the air is absorbed in the honeycomb structure, and when the humidity is low such as in winter, the bamboo charcoal has a honeycomb structure. Releases absorbed moisture.
[0042]
Therefore, when bamboo charcoal is arranged in the underfloor space, the bamboo charcoal exerts an excellent humidity control function, can control the humidity under the floor, and can prevent the formation of dew and mold. Therefore, in the case of a wooden house, durability can be increased, maintenance costs can be significantly reduced, and termites caused by condensation and mold under the floor can be effectively prevented.
Furthermore, bamboo charcoal has no toxicity to the human body, can be supplied at a low cost, and has an effect that lasts semipermanently. Therefore, it is preferable to bamboo charcoal which has been conventionally used to prevent the occurrence of mold and termites.
[0043]
In addition, when the humidity change under the floor was actually measured by laying bamboo charcoal, the humidity under the floor was reduced by about 5% in summer and about 10% in winter. Even in the rainy season when the humidity was the highest, more than 95% Did not reach. Furthermore, no mold was found under the floor.
[0044]
(durability)
The adsorption performance of bamboo charcoal is not affected over time because it is chemically adsorbed by microorganisms that settle on the pores. On the other hand, the adsorption performance of activated carbon is due to physical adsorption due to the size of its surface area, and the adsorption performance is lost over time. Therefore, an activation process is required as needed, which is troublesome.
[0045]
Therefore, bamboo charcoal is inferior to activated carbon in terms of adsorption power (in the case of activated carbon, 800 m per gram) ² However, since activation treatment is not required unlike activated carbon, it can be used semi-permanently.
[0046]
(Prevention of electromagnetic waves)
Since bamboo charcoal is almost entirely composed of carbon, it is excellent in conductivity and power storage. Therefore, it absorbs electromagnetic waves in the same manner as the principle of preventing lightning with a lightning rod. Therefore, it is possible to reduce the influence on the human body due to electromagnetic waves in a house, which has recently become a problem.
[0047]
(Cost performance)
Further, since bamboo charcoal has a large specific surface area, the amount of use is only half as compared with the case where charcoal is used (charcoal is approximately 50 kg per tsubo), which is economical.
[0048]
(Other effects)
In addition to such properties, it is known that bamboo charcoal has a mineral replenishing function such as silicate and potassium, a far-infrared ray effect, a healing effect, and the like.
[0049]
Bamboo charcoal having the operation and effect described above is suitable as the porous adsorbent 8b in the present embodiment. In addition, the bamboo charcoal carbonized at a temperature of 800 degrees exhibits the above-mentioned characteristics better.
[0050]
<Charcoal>
Charcoal also has properties similar to bamboo charcoal.
As wood suitably used for the production of charcoal, various woods used as a raw material of charcoal can be used, from broadleaf trees such as ubamegashi, oak, oak, oak, chestnut, and conifers such as larch, cedar, and hinoki. is there.
Various conventionally known methods can also be applied to the carbonization method, and the degree of progress of carbonization is also low-temperature carbonized charcoal obtained by carbonizing at 400 to 500 degrees, medium-temperature carbonized charcoal obtained by carbonizing at 600 to 700 degrees, Arbitrary materials such as high-temperature carbonized charcoal obtained by carbonizing at about 1000 degrees can be used.
[0051]
<Activated carbon>
Activated carbon also has properties similar to bamboo charcoal.
Activated carbon is a carbon having micropores formed by reacting a carbon or a carbon material such as coconut as a raw material with a gas or a chemical at a high temperature.
For example, in the case of powdered activated carbon, sawdust, hard wood chips, charcoal (ash), peat (peat), etc., in the case of granular activated carbon, charcoal, coconut shell charcoal, coal (ash, lignite, bituminous coal, anthracite, etc.) ), Oil carbon, phenolic resin, etc., and in the case of fibrous activated carbon, it can be produced from rayon, acrylonitrile, coal pitch, petroleum pitch, phenolic resin and the like.
[0052]
Hereinafter, a series of flows of air in the indoor ventilation system according to the present embodiment will be described with reference to the drawings.
[0053]
Generally, when air is heated, it expands and rises naturally (natural convection phenomenon). Therefore, the outside air guided into the first floor underfloor space 2 of the house 1 provided with the in-home ventilation system according to the present embodiment is heated in the first floor underfloor space 2 and generates an updraft. Therefore, the air supplied into the house 1 rises and is discharged outside the house 1 through the attic space 3.
[0054]
First, the outside air passed through the outside air inlet 10 and introduced into the underfloor space 2 rises due to the natural convection phenomenon in the house 1 and moves toward the air supply opening 12 in the underfloor space 2. I do. Since the air supply port 12 is covered with the outside air purification unit 8, the raised outside air enters the outside air purification unit 8.
[0055]
Since the outside air purification unit 8 is filled with bamboo charcoal, which is a porous adsorbent 8b, the outside air that has entered the outside air purification unit 8 passes through the outer periphery of the bamboo charcoal and the inside of the tube of the bamboo charcoal honeycomb structure. At this time, due to the effect of the bamboo charcoal described above, adsorption and removal of impurities and the like in the outside air and other suitable processes are performed on the outside air.
Then, the air from which impurities and the like have been adsorbed and removed from the outside air is supplied from the outside air purification unit 8 to the first floor living room 5 through the air supply port 12.
[0056]
The air supplied to the first-floor living room 5 is discharged into the pit 4 through the exhaust port 13 along the flow path. When the first-floor room 5 is partitioned into the rooms 5a and 5b by the partition 7, the air supplied to the first-floor room 5b not adjacent to the pit portion 4 is exhausted to the first-floor room 5a through the communication hole 7a of the partition 7. After that, it is discharged into the pit 4.
[0057]
In the pit 4, an upward airflow is generated toward the attic space 3. Therefore, the air discharged into the pit portion 4 rises toward the attic space 3, but a part of the air is supplied into the second floor living room 6 from the air supply port 14 provided in the middle of the flow passage. When the second-floor room 6 is partitioned into the second-floor rooms 6a and 6b by the partition 7, first, the air supplied to the second-floor room 6a adjacent to the pit portion 4 is supplied to the pit portion through the communication hole 7a of the partition 7. It is supplied to the second floor living room 6b which is not adjacent to the fourth floor.
[0058]
Then, the air supplied to the second-floor rooms 6, 6a, 6b is discharged from the exhaust port 15 to the attic space 3, and is discharged outside from the discharge port 11 through the duct 11a.
In this manner, ventilation of the house 1 is performed by the flow of the purified air, and the environment in the house can be maintained and purified.
[0059]
The following configuration can be added to the house 1 including the house ventilation system according to the present embodiment.
[0060]
For example, a fan 16 as an air supply means can be provided in the first floor underfloor space 2. By providing the fan 16, the outside air is forcibly supplied into the underfloor space 2, and the outside air in the first floor underfloor space 2 is forcibly supplied from the first floor underfloor space 2 to the first floor living room 5. . This allows the air in the house 1 to be replaced in a shorter time than in the case of using the above-described natural convection phenomenon, so that the environment in the house can be more effectively purified.
[0061]
The position where the fan 16 is provided is not limited to the underfloor space 2. For example, the fan 16 is provided in the attic space 3 and the air in the house 1 is forcibly discharged to the outside. 2 and the attic space 3.
[0062]
In the configuration in which the fan 16 is provided, near the discharge port 11 of the duct 11a, a sensor for detecting the concentration of volatile chemical substances and the amount of dust contained in air discharged from the duct 11a to the outside of the house 1, Appropriate detecting means 17 such as a sensor for detecting the temperature, humidity and air volume of the gas to be released is provided, and the operation or non-operation of the fan 16 is determined based on the result detected by these sensors. You can also. In this case, ventilation in the house 1 can be effectively performed as needed.
[0063]
Further, for example, a heater 18 as a heating means can be provided in the first floor underfloor space 2. By providing the heater 18, the outside air guided into the first floor underfloor space 2 can be warmed. The warmed outside air expands and becomes lighter, causing updrafts in the house. Therefore, ventilation in the house 1 can be more effectively promoted.
In winter, the outside air heated by the heater 18 can be supplied from the first floor underfloor space 2 to the first floor rooms 5, 5a, 5b, the second floor rooms 6, 6a, 6b, and the pit portion 4, which assists heating. Energy consumption for heating can be reduced.
[0064]
[Second embodiment]
Next, a ventilation system in a house according to a second embodiment of the present invention will be described with reference to FIG. In the drawings to be referred to, FIG. 4 is a schematic configuration diagram of a house provided with an in-house ventilation system according to a second embodiment.
[0065]
As shown in FIG. 4, a house (hereinafter, referred to as “house”) 1 ′ provided with an in-house ventilation system includes a pit that forms a first floor underfloor space 2 and a flow path for guiding introduced outside air to an attic space 3. It mainly comprises a part 4, a first floor living room 5 and a second floor living room 6 adjacent to the pit portion 3, and an outside air inlet 10 for introducing outside air.
[0066]
In the first floor underfloor space 2, an outside air purifying unit 20 for purifying the introduced outside air is arranged. The outside air purification unit 20 is formed so that a porous adsorbent 8b is filled in a space surrounded on the sides and below by a reinforced concrete solid foundation and a side wall 20a rising from the solid foundation, and the upper part is covered by a lid 20b. Have been.
[0067]
A material other than wood is used for the lid 20b. The wood used in the first floor underfloor space 2 needs to be impregnated with a chemical for termite control and the like, so that the air is not newly polluted by touching it. However, the material of the lid 20b is not particularly limited, and can be appropriately changed. For example, a fireproof board such as a fireproof board, a caical board, and a flexible board can be suitably used.
[0068]
A pipe 21 that penetrates through the side wall 20 a and communicates with the outside air inlet 10, and a pipe 22 that communicates with the air supply port 12 provided in the first floor living room 5 are connected to the outside air purification unit 20. The outside air introduced from the outside air introduction port 10 is directly introduced into the outside air purification unit 20 via the pipe 21, and then supplied to the first floor living room 5 via the pipe 22 as purified air.
[0069]
The porous adsorbent 8b may be directly filled in the space formed as described above, or may be filled in the tare 8a described in the first embodiment and fixed with staples or the like. It may be. The porous adsorbent 8b may be filled in the entire space in order to maximize its effect, or may be filled only in a part of the space in order to reduce costs. Is also good.
[0070]
Therefore, the outside air does not directly contact members such as wood facing the first floor underfloor space 2 or the air in the first floor underfloor space 2, and the first floor living room is not newly contaminated in the first floor underfloor space 2. 5. In particular, wood is impregnated with various chemicals for termite control and the like, and it is preferable not to touch it. The flow path of the air from the first-floor living room 5 is the same as that of the first embodiment, and the description is omitted.
In this way, ventilation of the house 1 'is performed by the flow of the purified air, and the environment in the house can be maintained and purified.
[0071]
When the fan 16 is attached to the pipe 21, the outside air can be forcibly introduced into the outside air purifying unit 20, and can be forcibly supplied into the first floor living room 5 as purified air. As a result, ventilation in the house can be performed in a short time, so that the environment in the house can be more effectively purified.
[0072]
Further, the heater 18 can be provided inside the outside air purification unit 20. By providing the heater 18, the outside air guided into the outside air purification unit 20 can be warmed. The warmed outside air expands and becomes lighter, causing updrafts in the house. Therefore, ventilation in the house 1 'can be more effectively promoted. Also, in the winter season, warmed outside air can be supplied into the house, which assists in heating and reduces the consumption of energy used for heating.
[0073]
Further, when the outside air purifying section 8 is provided in a passage communicating from the pit section 4 to the attic space 3, various functions of the porous adsorbent 8b can improve the environment in the house. Specifically, the presence of the humidity control function enables dehumidification of the interior space of the house when the humidity is high, and can effectively prevent dew condensation, mold, and the like.
[0074]
Although the in-house environment purification system according to the second embodiment has been described above, the outside air purification unit 20 may be modified and implemented as follows.
FIG. 5 is a modified example of the outside air purification unit, and FIG. 6 is a perspective view of a box.
As shown in FIG. 5, the outside air purification unit 23 includes a box 24 in a space formed by the side wall 20a and the lid 20b. The box 24 has an opening 24a in the upper part, and the inside thereof is filled with a porous adsorbent 8b (see FIG. 6). Further, a pipe 22 communicating with an air supply port provided in the first floor living room 5 is connected to the side wall 20a as described above.
[0075]
A pipe 25 communicating with the outside air inlet 10 penetrates the side wall 20 a and is connected to the box 24. By doing so, the outside air introduced from outside is guided directly to the inside of the box 24 and is purified by the action of the porous adsorbent 8b. The purified air is supplied from the opening 24 a of the box 24 to the first floor room 5 through the pipe 22.
[0076]
Accordingly, the air does not directly contact members such as wood facing the first floor underfloor space 2 or the air in the first floor underfloor space 2, and new pollution in the first floor underfloor space 2 can be prevented. Further, since the inside of the outside air purification unit 23 is not directly filled with the porous adsorbent 8b, but the box 24 filled with the porous adsorbent 8b is used, the layout inside the outside air purification unit 23 can be easily changed. can do. Therefore, the heater 18 and the like can be easily arranged in the outside air purification section 23. Furthermore, since the box 24 is formed compactly, replacement and the like can be easily performed.
[0077]
By arranging the box 24 in a house, the environment in the house can be improved by various functions of the porous adsorbent 8b filled in the box 24. For example, by providing a box 24 near the passage communicating from the pit portion 4 to the attic space 3, when the humidity is high, the porous adsorbent 8b dehumidifies the house and effectively prevents dew condensation, mold, and the like. it can.
[0078]
The preferred embodiment of the in-home ventilation system according to the present embodiment has been described above, but the present invention is not limited to this. For example, in the present embodiment, a case where the present invention is applied to a two-story house has been described. be able to.
[0079]
【The invention's effect】
In the in-home ventilation system according to the present invention, the outside air is introduced into the house, passes through the outside air purification unit, and is supplied to the first floor living room or the like. The outside air purification section is filled with a porous adsorbent, and harmful substances and the like contained in the outside air are adsorbed by the porous adsorbent, so that the outside air after removing air pollutants (hazardous substances) is removed. However, it is guided to the space in the house, and it is possible to maintain and purify the environment in the house.
[0080]
In addition, when the outside air is introduced into the underfloor space on the first floor, passes through the air supply port covered by the outside air purifying section, and is supplied as purified air to the living room on the first floor, the outside air has a simple configuration. The purifying section can be easily attached.
[0081]
On the other hand, if the outside air is directly introduced into the outside air purification section and then connected to the pipe so that the purified air can be directly supplied to the living room on the first floor, the air can be prevented from being newly contaminated in the underfloor space on the first floor. . Therefore, maintenance and purification of the environment in the house can be effectively achieved.
[0082]
At this time, if the air supply means is provided in the underfloor space or the attic space on the first floor, the air from which impurities and air pollutants (harmful substances) have been removed is surely supplied to the space in the house. Thus, the maintenance and purification of the environment in the house is performed more efficiently than in the case where natural convection is used. In summer, the outside air cooled in the first floor underfloor space can be supplied to the space in the house, which can be used as an aid for cooling in the house.
[0083]
Further, by appropriately providing a heating means, the outside air can be warmed. The warmed outside air expands and becomes lighter, generating an updraft. Thereby, the flow of the air can be made smooth and the ventilation in the house can be performed efficiently. In winter, it can be used to assist in heating the house.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a house provided with an in-house ventilation system according to a first embodiment.
FIG. 2 is a schematic perspective view of an outside air purification unit.
FIG. 3 is an example of attachment of an outside air purifying unit to a floor joist.
FIG. 4 is a schematic configuration diagram of a house provided with an in-house ventilation system according to a second embodiment.
FIG. 5 is a cross-sectional view showing a modification of the outside air purification unit.
FIG. 6 is a perspective view of a box.
[Explanation of symbols]
1 house
2 First floor underfloor space
3 attic space
4 Pit
5 First floor living room
6 Second floor living room
7 Partition
8,20,23 Outside air purification unit
10 outside air inlet
11 outlet
12,14 air supply port
13,15 Exhaust port
21, 22, 25 piping

Claims (7)

On the first floor,
An outside air inlet provided on a side wall forming the first floor underfloor space,
Attic space with outlet,
A pit portion penetrating the upper and lower floors on the first floor underfloor space and communicating with the attic space,
An air supply port provided on the first floor, and a first floor living room provided with an exhaust port communicating with the pit portion;
An air supply port communicating with the pit portion, and a living room on the second floor or more provided with an exhaust port communicating with the attic space,
A ventilation system in a house comprising:
A ventilation system in a house, wherein an outside air purification unit filled with a porous adsorbent that allows introduced outside air to pass therethrough is arranged in the underfloor space on the first floor. The outside air introduction port communicates with the first floor underfloor space and the outside, the air supply port of the first floor living room communicates with the first floor living room and the first floor underfloor space, and the outside air purification unit includes the first floor The in-house ventilation system according to claim 1, wherein the air supply opening of the living room is covered. The ventilation system in a house according to claim 2, wherein a heating means for warming the outside air introduced from the outside air inlet is provided in the underfloor space on the first floor. 2. The ventilation system in a house according to claim 1, wherein the outside air purification unit is connected to the outside air introduction port by a pipe and is connected to the supply port of the first floor living room by a pipe. 3. The ventilation system in a house according to claim 4, wherein a heating means for warming the outside air introduced from the outside air inlet is provided in the outside air purification unit. The first floor living room or the second floor or higher living room is partitioned by a partition, and the partition is provided with a communication hole for communicating the partitioned rooms with each other. 6. The ventilation system in a house according to any one of 5 above. The ventilation system in a house according to any one of claims 1 to 6, further comprising an air supply means for forcibly introducing the outside air into the house.

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