JPH0319454B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to heating and cooling of houses.

[Conventional technology]

Traditionally, ventilation and cooling in buildings used mechanical exhaust ventilation through underfloor vents and mechanical extraction of hot air from the attic space, but neither of these methods was able to create sufficient coolness.

This is because the cold source of the subfloor surface cannot be used, and the problem with conventional methods is that it is not possible to create cold air by bringing outside air into contact with the cold source of the subfloor surface.

In addition, in heating, it is known that the exhaust air from inside the building collects in the attic space and cold air accumulates in the underfloor space, but under natural circumstances, warm air from the attic space cannot be guided to the underfloor space. There is also a method of blowing air from the attic space using a ventilation fan using a duct, but this method has the disadvantage that it cannot provide sufficient heating effect because it cannot distribute air evenly to the space under the floor.

Furthermore, one of the problems that must be overcome is that the amount of heat storage is small, which is a common problem in both heating and cooling systems.

[Problem that the invention seeks to solve]

Therefore, in order to eliminate the drawbacks of the prior art, the present invention aims to create cold air by bringing outside air into contact with the subfloor surface, increase the amount of heat storage by stone and concrete layers, and move air all over the underfloor area for air conditioning and heating with a small amount of energy. The purpose is to

[Means to solve the problem]

The present invention will be explained below based on the drawings.

FIG. 1 is an explanatory diagram showing the operation of the present invention. An underfloor ventilation opening 1 has a check valve 2, a damper 4 that is opened and closed by an opening/closing screw 3, and a tapered duct 5 is connected to the underfloor ventilation opening 1. An intermediate ventilation fan 8 is provided between the duct connection port 6 and the duct 7, and the duct 7
There are many cylindrical slit pipes 1 with partitions 10 and slits 11 arranged on the ground of the underfloor space 9.
2 are connected, a cap 13 is fitted to the end of the slit pipe 12, and a duct 14 is connected from the attic space 15 to the duct 7,
A check valve 16 and an intermediate ventilation fan 17 are installed in the middle, and a slit pipe 20 having a cylindrical partition 18 and a slit 19 is connected to the tip, and a cap 13 is fitted to the end of the pipe. The underfloor space 9 and the attic space 15 are communicated with each other, and the attic ventilation opening 22 is openable and closable.Concrete 23 is placed on the ground, and a waterproof sheet 24 is stretched over the top of the concrete 23 to make it waterproof. A heat insulating material 25 is laid on the top surface of the sheet without any gaps, and a hollow pipe 26 is arranged and fixed on the top surface of the heat insulating material 25 so as to form a circulation path as shown in FIG. 4a and b. This is a house in which a large number of the slit pipes 12 are buried in a concrete layer 27 and are mixed with stones 28 on the upper surface of the concrete layer 27 in which hollow pipes 26 are buried.

[Effect]

Next, the operation will be explained with reference to FIG.

By making the cross-sectional area of the slit pipe 12 smaller than that of the duct 7, and by making the opening of the slit 11 smaller, the intermediate ventilation fan 8 is driven. Furthermore, the pressure is evenly distributed in all the slits 11, and the air is evenly distributed over the entire surface of the underfloor space 9.

In other words, this is the same principle as when blowing air into the cloth bag of a futon dryer, the air is blown out evenly over the entire area through small gaps in the cloth. Furthermore, the concrete layer 27 is heated or cooled by a boiler or a cleaning tower to circulate water, liquid such as antifreeze, air, or other gas through the buried hollow pipe 26, so that the concrete layer 27 can be removed from the surface of the concrete layer 27. Together with 28, this further enhances the heat storage effect.

〔Example〕

The case of summer will be explained with reference to FIG.

In summer, the damper 4 of the underfloor ventilation opening 1 is opened by the opening/closing screw 3, and the attic ventilation opening 22 is opened.

When the intermediate ventilation fan 8 is driven, the check valve 2 is pushed away from the underfloor ventilation opening 1, and the outside air passes through the duct 7, applies pressure to the slit pipe 12, as shown in Figure 3a, and is transmitted to the cap 13 at the end, and then the slit pipe 12 is heated. 11 and is blown out into the underfloor space 9, mixed with the cold air near the ground and applying pressure to the underfloor space 9.In the underfloor ventilation opening 1 where there is no intermediate ventilation fan 8, the check valve 2 prevents the cold air from flowing out. , the pressure causes the wall cavity 21 to rise, pushing up the hot air in the attic space 15 and releasing it to the outside through the attic ventilation opening 22.

On the other hand, pressure is applied in the duct 14 and reaches the check valve 16, but the check valve 16 prevents the air from moving.

Intermediate ventilation fan 8 during hot days and cool nights
You can get the cooling effect by running the. In addition, the water in the hollow pipe 26 buried in the concrete layer 27 is cooled at night, and the concrete layer 2
By storing cold heat in the air conditioner 7 and extracting the cold heat by operating the intermediate ventilation fan 8 during high temperatures during the day, the entire building can be air-conditioned.

Next, the case of winter will be explained with reference to FIG. The damper 4 of the underfloor ventilation opening 1 is closed by an opening/closing screw 3, and the attic ventilation opening 22 is also closed.

In winter, warm air accumulates in the attic space 15 due to household exhaust heat and solar heat, and cold air collects in the underfloor space 9, cooling the room.

The warm air that has gathered in the attic space 15 will not naturally flow down to the underfloor space 9, and that heat will be of no use as it is.

Therefore, by operating the intermediate ventilation fan 17, the high temperature air in the upper part of the attic space 15 is selectively drawn into the slit 1 of the slit pipe 20 as shown in FIG. 3b.
9 and pushes the check valve 16 away from the duct 14
The air flows down through the duct 7 to the slit pipe 12 and is blown out uniformly from the slit 11 over the entire surface of the underfloor space 9.

In this way, warm air is selectively forced into the underfloor space 9 for heating. In addition, contrary to the case of summer, the water in the hollow pipe 26 buried in the concrete layer 27 is heated during the day, the heat is stored in the concrete layer 27, and the intermediate ventilation fan 8 is operated at night to extract the heat, resulting in a heating effect. It is something that increases

Further, the heat storage structure according to the present invention can be used not only in air cycle houses but also in frame structures, 2×4 structures, and prefabricated structures. Furthermore, it is also possible to have a structure that does not use the slit pipes 12, 20, the cap 13, or the stone 28.

〔Effect of the invention〕

As explained above, according to the present invention, the subfloor surface has a heat storage structure, which contributes to energy saving by utilizing cold heat, waste heat, forced heating and forced cooling, and also strengthens the earthen floor and foundation. It has the characteristics of improving heat insulation, insect repellency, mold resistance, sound insulation, corrosion resistance, and vibration resistance.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram showing an example in the case of summer, Figure 2
The figure is an explanatory diagram showing an example in the case of winter, Figure 3a,
FIG. 4b is an explanatory view showing an example of a slit pipe used under the floor or in the attic, and FIGS. 4a and 4b are explanatory views showing other embodiments of the hollow pipe. 1...Underfloor ventilation opening, 7...Duct, 8...Intermediate ventilation fan, 9...Underfloor space, 15...Attic space,
17...Intermediate ventilation fan, 21...Wall cavity, 22...
Attic ventilation opening, 23... concrete, 24...
Waterproof sheet, 25...insulation material, 26...hollow pipe, 27...concrete layer, 28...stone.

Claims (1)

[Claims] 1 There is a check valve in the underfloor ventilation opening, a damper that opens and closes with an opening/closing screw, a tapered duct is connected to this underfloor ventilation opening, an intermediate ventilation fan is installed between the duct connection opening and the duct, and the duct has a A large number of slit pipes lined up on the ground in the underfloor space are connected, a cap is fitted to the end of the slit pipe, and a duct is connected from the attic space to the duct, with a check valve and an intermediate There is a ventilation fan and a slit pipe is connected to the tip.
A cap is fitted to the end of the cap, and in a house where the underfloor space and attic space are communicated through a wall cavity, and the attic ventilation opening can be opened and closed, concrete is poured on the ground, and the concrete is poured into the ground. A waterproof sheet is stretched over the top surface, a heat insulating material is laid on the top surface of the waterproof sheet without any gaps, a hollow pipe is placed and fixed on the top surface of the heat insulating material to form a circulation path, and the hollow pipe is covered with a concrete layer. 1. A house characterized in that a large number of the slit pipes lined up on the upper surface of a concrete layer in which the hollow pipes are buried are mixed with stones.