JPH0351640A - Ventilating device for housing - Google Patents

Abstract

PURPOSE:To perform efficient regulation of the temperature of a housing by a method wherein a ventilating space running from an underfloor place to a ceiling is formed internally of the wall of the housing, and a heat exchange pipe for intercommunicating the underfloor and the outside and heat- exchangeable of an inner air temperature with geothermal energy is embedded in a ground. CONSTITUTION:A ventilating space 5 running from an underfloor place 3 to an attic 4 is formed internally of a heat insulating material 13 of at least a wall 2 of a housing H. Meanwhile, a heat exchange pipe 6 is embedded in a ground G. The heat exchange pipe 6 heat exchanges geothermal energy with an internal air temperature through utilization of a material having excellent thermal conductivity. Since the temperature of the ground G is kept at a comparatively constant temperature of 10-15 deg.C regardless of a winter and a summer season, an internal air temperature is regulated naturally. Meanwhile, a blast fan 7 is mounted in an attic 4, and the ventilating space 5 is communicated with the attic 4. This constitution prevents reduction of an indoor temperature by means of hot air in the attic 4 during a winter season and suppresses the increase of an indoor temperature by means of cold air during a summer season.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a housing ventilation device that can be used particularly for highly insulated and airtight housing.

[Prior art and issues]

2. Description of the Related Art Highly insulated and highly airtight houses in which almost the entire walls, ceilings, etc. are covered with heat insulating materials are known as houses for cold regions. In general, this type of house requires good ventilation and ventilation, and is usually equipped with a specified ventilation system and ventilation system.

Most conventional ventilation devices also function as ventilation devices using blower fans. On the other hand, a ventilation space is provided inside the insulation material, and this ventilation space is communicated with a ventilation hole installed in the concrete foundation facing the subfloor. Ventilation devices have also been put into practical use, in which ventilators are formed on the left and right sides of the vent to control temperature, and ventilators that stop the flow of air to form an air layer and use this air layer as a heat insulating layer.

However, the above-mentioned conventional ventilation devices simply utilize airflow and air layers, and have a problem in that they cannot achieve sufficient and efficient temperature reduction.

An object of the present invention is to provide a residential ventilation device that solves the problems existing in the prior art.

[Means to solve the problem]

The residential ventilation device I according to the present invention provides a ventilation space 5 extending from the underfloor 3 to the attic 4 inside at least the wall 2 of the house H, communicates the underfloor 3 with the outside of the house H, and connects the inside temperature and geothermal heat. It is characterized in that a heat exchange pipe 6 capable of exchanging heat is buried underground G. In one embodiment, the heat exchange pipe 6 is provided with a drain port 6a for discharging condensed water, and the attic 4 is provided with a ventilation means using, for example, a ventilation fan 7 to move the air in the ventilation space 5. Furthermore, a heating means using a heater 8, for example, which can heat the air entering the underfloor 3 from the heat exchange pipe 6 can be provided.

[For production] Next, the operation of the present invention will be explained.

The residential ventilation device l according to the present invention uses geothermal heat (around 10 to 15 degrees Celsius), which is warmer than outside air in winter, by using the heat exchange pipe 6.
The air inside the vibrator 6 that has been warmed by the air enters the underfloor 3 by natural convection, and then passes through the ventilation space 5 to the attic 4.
Move to. This effectively suppresses the temperature drop within the house H.

Note that heating by the heater 8 may be used in combination to achieve more effective heating.

On the other hand, in summer, if the air in the same pipe 6 cooled by geothermal heat, which is colder than the outside air, is moved to the attic 4 by the blower fan 7, the temperature rise in the house H can be efficiently suppressed. Note that the air that has moved to the attic 4 is circulated within the house H or exhausted to the outside as necessary.

In addition, air currents are formed by natural convection throughout the year,
Efforts will be made to prevent the deterioration of residential wood.

〔Example〕

Next, preferred embodiments of the present invention will be described in detail based on the drawings.

First, the outline of the highly insulated and highly airtight house H will be explained with reference to FIG.

II is the foundation constructed underground G, lla is the underground concrete part buried underground, Ilb is the underfloor concrete part that covers the ground, and Ilc is the cloth foundation concrete part that stands above the same concrete part 1lb. be. - There is no space below the underfloor concrete part 1lb, and a large number of heat storage stones I2... are accommodated in the space under the floor 3 above the concrete Ilb.

Further, on the foundation 11, a framework is constructed by foundations, pillars, eaves, etc., and furthermore, walls, ceilings, roofs, etc. constitute a general housing part.

On the other hand, in the case of a highly insulated and highly airtight house H, a heat insulating material 13 is attached to the ceiling, walls, foundation, etc., and the entire house portion is covered with this heat insulating material 13. This achieves high heat insulation and high airtightness. By the way, as insulation methods, an internal insulation method and an external insulation method are generally known. In Figure 1,
The wall 2 on the right side is a wall using an internal insulation method in which glass wool 13a is filled between the inner wall material 2a and the outer wall material 2b, and the wall 2 on the left side is a wall material (
This example shows a wall using an external insulation method in which a foamed heat insulating material 13b is attached to the outside of the column 2c.

Next, the main configuration of the present invention will be explained.

First, inside the heat insulating material 13, a ventilation space 5 is provided extending from the underfloor 3 to the attic 4 as shown in FIG.

On the other hand, a heat exchange pipe 6 is buried underground.

The heat exchange pipe 6 is made of a material with excellent thermal conductivity and is buried underground to exchange heat between the geothermal heat and the internal temperature. The underground temperature remains relatively constant (approximately 10 to 15 degrees Celsius) regardless of whether it is winter or summer, and the idea is to utilize this phenomenon to regulate the temperature of houses. The opening at one end of the heat exchanger vibrator 6 penetrates the middle of the underfloor concrete section 1lb to face the inside of the underfloor 3, and the other end opens into the house H.
Have the Uiro appear. As a result, the underfloor 3 and the outside communicate with each other via the heat exchange pipe 6 buried in the ground G. In addition, the heat exchange pipe 6 is raised on the under-floor 3 side so that the warmed air inside the pipe 6 can smoothly enter the under-floor 3, and the water droplets condensed inside the pipe 6 can flow and move. Consider. For this reason, a drainage port 6a is provided in the lower end of the inclined heat exchanger vibe 6 to discharge the generated water droplets into the ground G. Incidentally, l5 is sand or gravel for smoothly permeating the discharged water layer into the underground G. In order to further increase the heat exchange efficiency of the heat exchange pipe 6, a plurality of fins 6b are provided on the outer periphery of the pipe 6 as shown in Fig. 1, or the pipe is bent in a zigzag shape to increase its effective length. This is desirable.

On the other hand, a blower fan 7 is installed in the attic 4.

The ventilation fan 7 is installed using an opening 18 passing through a heat insulating material l3 attached to the ceiling so as to communicate the ventilation space 5 and the attic 4. In addition, a duct 20 is provided on the roof R for discharging the air from the attic 4 to the outside, and a heat insulating material 13 attached to the corner of the ceiling carries the air from the attic 4 to the ventilation space 5.
A duct 2l is provided to generate an air flow back to the air. Note that each duct 20, 2I can be opened and closed by remote control, for example.

On the other hand, a heater 8 is attached to the opening of the heat exchange pipe 6 on the underfloor 3 side to heat the air entering the underfloor 3 as necessary during the winter. Additionally, in the summer, a dehumidifier will be installed to dehumidify if necessary.

Next, the functions of the ventilation device 1 according to the present invention will be explained.

First, in winter, the air inside the heat exchange pipe 6 is warmed by geothermal heat, moves through the pipe 6 by natural convection, and
At the same time, it further passes through the ventilation space 5 and reaches the attic 4. As a result, the air, which is warmer than the outside air, effectively suppresses the drop in indoor temperature. Note that at this time, when the outside air is particularly low, the heater 8 can be energized as necessary to heat the passing air.

On the other hand, in the summer, by operating the ventilation fan 7, the cooled air inside the heat exchange pipe 6 is sucked up, and the under-floor 3,
It is forcibly moved through the ventilation space 5. As a result, air that is colder than the outside air suppresses the rise in indoor temperature, contrary to winter. In the summer, dew condensation occurs inside the pipe 6, and the generated moisture is discharged into the ground G through the drain port 6a.

Also, in both winter and summer, each duct 20, 2
1 can be selectively opened and closed to control airflow. That is, by opening the duct 20 and closing the duct 21, the air in the attic 4 can be discharged to the outside of the house as indicated by the arrow Hl. On the other hand, if the duct 20 is closed and the duct 2l is opened, the air in the attic 4 can be circulated inside the house as indicated by arrow H2.

Although the embodiments have been described in detail above, the present invention is not limited to these embodiments, and the structure, material, shape, etc. can be arbitrarily changed without departing from the gist of the present invention.

〔Effect of the invention〕

As described above, the residential ventilation device according to the present invention provides a ventilation space from the floor to the ceiling at least inside the wall of the house, communicates the underfloor with the outside of the house, and is a heat exchanger capable of exchanging heat between the inside air and the geothermal heat. Since the pipe is buried underground, the following effects can be obtained.

■ Temperature control in houses, especially highly insulated and airtight houses, can be efficiently controlled by using geothermal heat.

■ Since it uses geothermal energy, it is economical and can contribute to energy savings.

■ It does not require large-scale equipment, contributes to cost reduction, can be applied to various types of housing, and is highly versatile and expandable.

[Brief explanation of drawings]

FIG. 1: A schematic configuration diagram showing the principle of the residential ventilation device according to the present invention. FIG. 2: A perspective view showing the vicinity of the underfloor opening of the heat exchange pipe in the device. In the drawing, l: Ventilation device 3: Underfloor 5: Ventilation space 7: Ventilation fan H: House/Station: Attic: Heat exchange pipe: Heater: Underground 1 Figure 2 Figure 11b

Claims (1)

[Scope of Claims] [1] A ventilation space from under the floor to the attic is provided at least on the inside of the wall of the house, and a heat exchange pipe that communicates between the underfloor and the outside of the house and is capable of exchanging internal temperature and geothermal heat is provided underground. A residential ventilation device characterized by being embedded inside. [2] The residential ventilation device according to claim 1, wherein the heat exchange pipe is provided with a drain port for discharging condensed water. [3] The residential ventilation system according to claim 1, further comprising a ventilation means for moving air in the ventilation space provided in the attic. [4] The residential ventilation system according to claim 1, further comprising a heating means capable of heating the air that enters under the floor from the heat exchange pipe.