JPH08285328A - Building with good air-circulation - Google Patents

Abstract

PURPOSE: To effect an ideal ventilation of a building so as to make its inside comfortable as living environment. CONSTITUTION: The subject relates to a building wherein air circulates, designed to be ventilated by taking-in outdoor air through an outdoor-air intake duct 50 and by discharging the air, after circulation through the building, through an air discharge duct 46 to the outside. By providing pieces of insulating material 10 by way of side walls of the building and on beams the under-the-floor space 25 and rooms are disposed in an insulated state from the outside and with air passageways 36 between the inner walls 32 of the rooms and the wall- forming insulating pieces 10 that communicate with the under-the-floor space 25. One end of the outdoor-air intake duct 50 is opened outside the building and the other end, inside the under-the-floor space 25. A heat-exchange ventilating fan 42 is provided, which functions in a manner of all-purpose heat exchange between the outdoor air taken in through the outdoor-air intake duct 50 and the air to be discharged, after circulation through the building, through the air discharge duct 46.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air circulation building having a heat insulating structure and forcibly ventilating inside a wall.

[0002]

2. Description of the Related Art In a building such as a house, a wall portion having a heat insulating structure is provided in order to enhance the cooling and heating effect in the room. In general, this heat insulating structure has a structure in which a heat insulating material is inserted between the inner wall and the outer wall so as not to be affected by the outdoors and at the same time prevent heat inside the room from escaping to the outside. In addition, in a building with a structure that enhances heat insulation and indoor airtightness, a structure in which an air cycle path is provided in the building to allow fresh air to flow through the interior of the building, or when the outside air is taken in, the air is exhausted from the interior Some systems employ a method in which outside air is warmed and introduced into a building by passing through a heat exchanger that exchanges heat with air.

[0003]

However, even in a conventional air circulation building that employs a system for forcibly ventilating the inside surface of the wall of the building, the conventional building has a heat insulating property or There are problems that the airtightness is insufficient, that the temperature and humidity cannot be controlled appropriately even when ventilating, a suitable environment cannot be obtained in the building, and that the ventilation system must be changed depending on the season. It was In addition, there is a problem that the maintenance cost of the building is high.

The present invention has been made to solve these problems, and an object of the present invention is to suitably cool and heat the entire building, to suitably ventilate the interior of the building, and to make the indoor environment space comfortable. The purpose of this is to provide an air circulation building that can be maintained and maintained easily.

[0005]

The present invention has the following constitution in order to achieve the above object. That is, in an air circulation building in which the outside air is introduced into the building through the outside air introduction duct and the air circulated in the building is discharged to the outside from the exhaust duct and ventilated, a heat insulating material is provided on the side wall and the girder of the building. By arranging the underfloor space and each room with heat insulation from the outside, an air flow path communicating with the underfloor space is provided between the inner wall portion of each room and the heat insulating material forming the wall body, and the outside air is introduced. The duct is provided with one end opened outside the building and the other end opened within the underfloor space, and the outside air introduced from the outside air introduction duct and the exhaust gas discharged from the exhaust duct by recirculating each chamber are provided. It is characterized by the provision of a heat exchange ventilation fan for total heat exchange. Further, the underfloor space is formed as a closed space by the foundation concrete portion and the standing wall. In addition, it is useful to install a heat radiating section that uses solar heat on the basic concrete section in terms of effective indoor heating. Further, the heat exchange ventilation fan is characterized in that exhaust air from each room as well as exhaust air from a room such as a bathroom, a wash room, or the like that generates moisture is sent. As a result, the humidity of the outside air can be adjusted appropriately. Also, the heat exchange ventilation fan is installed inside the heat shield. An external ventilation layer is provided outside the heat insulating material.

[0006]

[Function] Outside air is introduced into each room in the building through the outside air introduction duct, and when the outside air passes through the heat exchange ventilation fan, the temperature and humidity are exchanged by the total heat exchange with the air exhausted from the room, which is preferable. It is heated or cooled, and the humidity is adjusted before it is introduced into the underfloor space. Air flows from the underfloor space along an air flow path provided between the heat insulating material and each chamber, is supplied to each chamber, and is then discharged to the outside via the heat exchange ventilation fan. In this way, a suitable ventilation cycle is constructed and the interior of the building is maintained in a comfortable environment space.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 1 is an explanatory diagram showing the overall configuration of an embodiment of an air circulation building according to the present invention. The air circulation building of the present embodiment maintains a high degree of airtightness by surrounding the indoor space of the building with a heat insulating material, and at the same time, the outside air is taken into the wall formed by the heat insulating material 10 to force air to flow. The feature of the system is that it can maintain the indoor environment of fresh air by using a ventilation system that allows the air to flow.

In FIG. 1, reference numeral 10 denotes a heat insulating material which constitutes a wall of a side surface of a building, and 10a denotes a heat insulating material which is provided on a girder so as to partition a ceiling portion and an attic. The heat insulating material 10 that constitutes the side surface of the building and the heat insulating material 10a that partitions the ceiling and the attic are installed so as to cover almost the entire building except for the window and the like. This can improve the airtightness and heat insulation of the building.

Reference numeral 12 is an external ventilation layer provided between the outer wall surface of the heat insulating material 10. The external ventilation layer 12 is formed by mounting the external wall body 14 with a layer space for allowing air to flow between the external ventilation layer 12 and the heat insulating material 10 forming the wall body. The outer ventilation layer 12 is provided on the entire outer side surface of the wall body, and is opened at the lowermost end as shown in the figure, and communicates with the attic space 16 at the upper part. An exhaust port 18 is provided at the top of the roof, and the air that has entered from the lower end of the external wall body 14 in the external ventilation layer 12 flows into the attic space 16 and then the exhaust port 1
Exhausted from 8. In the outer ventilation layer 12, such a flow of air constantly occurs.

Reference numeral 20 denotes a foundation concrete portion of the building, 22
Is a standing wall portion provided integrally with the foundation concrete portion 20. The standing wall portion 22 is provided for the purpose of supporting the structure of the building such as the wall body or the pillar and for the purpose of providing an air circulation space under the floor of the building. That is, in the air circulation building of the present embodiment, the entire underfloor is a common air circulation space for the entire building, and the air is circulated to the inner surface of the wall and each room by raising the air from this underfloor space.

It is sufficient for the standing wall portion 22 to secure a sufficient space for circulating the air under the floor, but in the embodiment, the foundation concrete portion 20 is set to be lower than the position of the ground 24, and the standing wall portion 22 is placed. The height of 22 is relatively large so that the underfloor space 25 is wider than in a conventional building. The concrete foundation 20 casts concrete on the entire bottom surface of the floor to prevent moisture from entering from the bottom of the floor. Further, the basic concrete portion 22 is provided with a constant thickness so that the basic concrete portion 22 can obtain a preferable heat storage effect.

Further, by making the basic concrete portion 20 lower than the ground position, the geothermal heat can be utilized so that the temperature change of the basic concrete portion 20 becomes as small as possible depending on the season. A moisture-proof layer 26 may be provided on the lower surface of the basic concrete portion 20 in order to prevent moisture from entering the basic concrete portion 20.

The upright wall portion 22 is formed in a completely closed state without providing a ventilation port. As a result, the underfloor portion of the building is completely sealed by the foundation concrete portion 20 and the standing wall portion 22, and the airtightness of the underfloor space 25 is secured. Further, the heat insulating board 10 is extended outside the standing wall portion 22 so that the heat insulating property in the underfloor space can be suitably obtained.

Reference numeral 30 denotes a floor portion in the room, which is constructed by stretching it on a large pulling material or a joist material. Below the floor 30 is the underfloor space 2
An air flow path for circulating the air from 5 is formed.
Reference numeral 32 is an inner wall portion of the room. An air flow path 34 that allows air to flow from the underfloor space 25 is also provided between the inner wall portion 32 and the heat insulating material 10 forming the wall body. The air flow path 34 is formed as a layer space between the heat insulating material 10 and the inner wall portion 32,
The air from the underfloor space 25 is formed so as to rise in the air flow path 34 along the inner surface of the heat insulating material 10.

Reference numeral 36 is an opening provided in the inner wall portion 32.
The opening 36 is for allowing air to flow into the room, and is installed close to the ceiling 38 in the embodiment, but may be installed at a low position on the wall surface. Further, the opening 36 may be provided not only in one place but in a plurality of places.

Reference numeral 40 denotes an air intake opening provided in the ceiling 38. A duct 44 is connected from the intake port 40 to a heat exchange ventilation fan 42 installed above the ceiling 38, and the duct 4
4 is connected to an exhaust duct 46 whose end extends to the outside of the building through a heat exchange ventilation fan 42. It should be noted that the intake port 40 and the heat exchange ventilation fan 42 in each room are all communicated by a duct 44 so as to communicate with the heat exchange ventilation fan 42. In addition,
The heat exchange ventilation fan 42 is installed in the space above the ceiling 38 and below the heat insulating material 10a.

Reference numeral 50 is an outside air introducing duct. The outside air introduction duct 50 is installed so that one end thereof projects from the outer wall surface of the building and is opened, and is arranged so as to pass through the heat exchange ventilation fan 42. Inside the heat exchange ventilation fan 42, outside air and exhaust air from each room are separated. Allows heat exchange, and also underfloor space 2
The other end is extended to 5 and opened in the underfloor space 25.
As a result, the outside air is introduced into the underfloor space 25 via the outside air introduction duct 50.

The heat exchange ventilation fan 42 is provided with a fan for exhausting air from each room, and by driving this fan, the air is allowed to flow to form an air cycle for ventilation. As the heat exchange ventilation fan 42, one having a total heat exchange effect is used. Total heat exchange is a simultaneous exchange of both temperature and humidity between exhaust gas and outside air, and the temperature and humidity are controlled by alternately connecting the thin tubes through which the exhaust gas and the outside air flow and allowing the exhaust gas and the outside air to flow through each other. Can be exchanged.

The heat exchange by the heat exchange ventilation fan 42 is performed by the mutual relationship between the temperature and humidity of the outside air and the exhaust gas. If the outside air is cold in the winter period, the outside air is warmed and introduced into the building, and the summer period is used. When the outside temperature is high, it acts to cool the outside air and introduce it into the building. For example, when the outside air is 0 ° C. and the humidity is about 80% in the winter period, the humidity becomes 3 when the outside air is heated to about 20 ° C. when the heat exchange is performed.
The humidity is very low, such as 0%, but the humidity is 40 to 50 by exchanging the exhaust air and the outside air by total heat exchange
A suitable living environment of about 10% can be provided.

In the present embodiment, the exhaust air from each room is collected in the heat exchange ventilation fan 42 so that the exhaust air and the outside air can be effectively exchanged for humidity when the total heat is exchanged. Exhaust gas from the room where high humidity is likely to be generated is collected in the heat exchange ventilation fan 42 for total heat exchange. A large amount of dew condensation occurs in a normal building because a considerable amount of humidity is generated in a bathroom or the like, but in the case of the building of the present embodiment, the heat exchange ventilation fan 42 that does not generate dew condensation and performs total heat exchange because of excellent heat insulation. Even if the exhaust gas is returned to, effective heat exchange can be performed without adversely affecting the device.

As described above, the air circulation building of this embodiment is provided with an air circulation system for taking in the outside air into the building, exchanging heat between the air inside the building and the outside air, and exhausting the air from the inside of the building. It is composed. As for the flow of air in this air circulation cycle, the outside air taken in from the outside air introduction duct 50 undergoes total heat exchange with the air discharged from each room of the building by the heat exchange ventilation fan 42, and then the outside air introduction duct 50. Through the underfloor space 25. The outside air is discharged in the underfloor space 25, is stored in the underfloor space 25, and then rises from under the floor toward each room. In the underfloor space 25, it is heated in the winter and cooled in the summer by the heat storage effect or the humidity adjusting effect of the basic concrete portion 20 and supplied into each room.

When the air flows from the underfloor space 25 into each room, as shown by the arrow in the figure, the opening 3 is passed from under the floor through the air flow path 34 formed between the heat insulating material 10 and the inner wall portion 32.
6 is supplied to each room. In this way, the air is made to rise along the heat-insulating boat 10 from the lower side of the air flow path 34 so that the inner wall portion 32 and the pillar material are brought into contact with the air and well fitted to the respective members. This is because. Thus, by not directly supplying air into each room from under the floor, but by circulating the air so as to wrap the whole building, the whole building can be appropriately ventilated, and thus the building can be made to last longer. Insulation material 1
By the action of 0 and 10a, each room is effectively insulated from the outside, so that the indoor heating and cooling can be performed very efficiently.

The air supplied to the room recirculates in the room, and then the heat exchange ventilation fan 4 from the intake port 40 through the duct 44.
Exhausted to 2. As described above, the heat exchange ventilation fan 42 performs total heat exchange between the outside air and the exhaust gas, warms the outside air when the outside air is cold, introduces the outside air to a required humidity, and cools the outside air when the outside temperature is high. When the humidity is high, it lowers the humidity to introduce outside air. After passing through the heat exchange ventilation fan 42, it is discharged from the exhaust duct 46 to the outside. In this way, an air circulation that takes in outside air is formed, and the entire building is ventilated.

As described above, the air circulation building of the embodiment is constructed so that each room is thermally insulated from the outside by the heat insulating materials 10 and 10a. By adopting a closed structure, it becomes possible to ventilate the entire building so as to wrap it, and it is possible to obtain suitable ventilation and indoor environment throughout the building throughout the season. As a result, the effect of cooling and heating in each room also works effectively, and the running cost for cooling and heating can be effectively reduced.

FIG. 2 shows an example of utilizing solar heat for indoor heating. The building of this embodiment also has the heat insulating material 1 as in the above embodiment.
The outer wall and ceiling of each room are wrapped with 0 to insulate and shield them from the outside. Reference numeral 60 is a solar heat collecting portion installed on the roof, 62 is a heat radiating portion installed on the foundation concrete portion 20, and 64 is a hot water supply portion.
A circulation path for circulating the heat medium is provided between the heat radiating portion 62, the hot water supply portion 64, and the heat collecting portion 60.

Normally, the hot water supply unit 60 utilizing solar heat is generally used, but in the present embodiment, the heat radiation unit 62 utilizing solar heat is installed in the underfloor space 25 to enable hot water supply and indoor heating. It is characterized by having done. The hot water supply unit 64 and the heat radiation unit 62 can use hot water supply, heat radiation, or both by controlling the flow path of the heat medium with a switching valve. The heat radiating portion 62 can be suitably used for indoor heating in the winter period, etc., and the heat radiating portion 6 can be provided on the foundation concrete portion 20.
By installing 2, the entire basic concrete portion 20 can be warmed, and the heat in the basic concrete portion 20 can heat the air in the underfloor space 25 as a whole.

As described above, in the air circulation building according to the present invention, the outside air is once introduced into the underfloor space 25, and the temperature and humidity are adjusted in the underfloor space to supply air to each room. Even when utilizing solar heat as in the present embodiment, it is possible to provide effective indoor heating by providing the heat dissipation portion 62 in the underfloor space 25 to warm the air in the underfloor space.

[0028]

As described above, according to the air circulation building of the present invention, the whole building is suitably ventilated with fresh outside air, and the outside air is exchanged with exhaust air from the inside of the room to change the season. It is possible to obtain a good living environment by adjusting the temperature and humidity to a suitable level. In addition, since the building is provided with excellent heat insulation and airtightness, it is possible to cool and heat the room easily and at low cost.

[Brief description of drawings]

FIG. 1 is a sectional view showing a configuration of an embodiment of an air circulation building according to the present invention.

FIG. 2 is an explanatory view showing another embodiment of the air circulation building.

[Explanation of symbols]

 10, 10a Heat insulating material 12 External ventilation layer 14 External wall body 20 Foundation concrete part 22 Standing wall part 25 Underfloor space 30 Floor part 32 Inner wall part 34 Air flow path 36 Opening part 38 Ceiling 40 Intake port 42 Heat exchange ventilation fan 44 Duct 46 Exhaust Duct 50 Outside air introduction duct 60 Heat collecting part 62 Radiating part 64 Hot water supply part

Claims (6)

[Claims] 1. An air circulation building in which outside air is introduced into a building through an outside air introduction duct, and air circulated in the building is exhausted from an exhaust duct to be ventilated, and heat insulation is provided on side walls and girders of the building. The underfloor space and each chamber are arranged by thermally insulating from the outside by providing a material, and an air flow path communicating with the underfloor space is provided between the inner wall of each chamber and the heat insulating material forming the wall body, The outside air introduction duct is provided with one end opened outside the building and the other end opened inside the underfloor space, and the outside air introduced from the outside air introduction duct and each chamber are circulated and discharged from the exhaust duct. An air circulation building that is equipped with a heat exchange ventilation fan that exchanges all heat with exhaust gas. 2. The air circulation building according to claim 1, wherein the underfloor space is formed as a closed space by a foundation concrete portion and a standing wall. 3. The air circulation building according to claim 2, wherein a heat radiating portion utilizing solar heat is installed on the foundation concrete portion. 4. The air according to claim 1, 2 or 3, wherein exhaust air from each room is sent to said heat exchanging fan together with exhaust air from a room such as a bathroom or a washroom that generates moisture. Circulation building. 5. The heat exchange ventilating fan is installed in an interior shielded by a heat insulating material.
The air circulation building according to 3 or 4. 6. The air circulation building according to claim 1, wherein an external ventilation layer is provided outside the heat insulating material.