JPS6134052B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilation system for houses, livestock sheds, etc., which is applied to create suitable living spaces for people, livestock, etc.

In general, a comfortable living space requires an appropriate temperature and sufficient ventilation.

For example, in livestock barns for cattle, pigs, etc., maintaining a good indoor environment is an important condition for promoting their growth, so the general ventilation frequency is 5.
It is required about ~10/1 hour.

However, as shown in Fig. 1, conventional ventilation systems for livestock barns, etc., have an air inlet b and an exhaust duct c attached to the side wall of a ventilated room a, and the roof d is covered with tiles or other roofing material. Therefore, the sun's rays are only reflected by the roof, and the heat is not used. Also, the heat generated from the bodies of cows, pigs, etc. is radiated to the outside through the roof d, and the heat is not used. Since the outside air is heavier than the warm air in the ventilated room a, the outside air taken in through the intake port b comes into direct contact with cows, pigs, etc.

Therefore, increasing the number of ventilations when the outside temperature is very low in a cold region will significantly lower the room temperature in the ventilated room a, making it impossible to provide sufficient ventilation. Yes, for this reason,
Particularly in the winter, it was not possible to provide a satisfactory living space suitable for the growth of cattle, pigs, etc.

Therefore, as a result of studies in view of the above-mentioned conventional circumstances, the present invention has been developed to effectively utilize the heat inside a ventilated room heated by heat generated from the bodies of people and animals and solar heat to heat the outside air. The purpose of this is to use this to raise the temperature and supply air to enable ventilation that can minimize the temperature drop in the ventilated room.

Hereinafter, the present invention will be explained in detail based on the drawings showing examples.

The drawings show an example of the implementation in a cowshed, and in FIGS. 2 to 4, a cowshed 1 is constructed in any desired shape, and the inside thereof becomes a ventilated room 2 in which cows are raised. There is.

The ventilated room 2 is constructed by installing an appropriate number of forced exhaust devices 4 such as blowers at the lower part of the side wall 3.
Odors, harmful gases, etc. generated from cow excrement and urine at the bottom 2a of the tank can be effectively exhausted.

In the attic of the cowshed 1, a plurality of windows 5 for absorbing solar heat are attached to form an insulated heat absorption room 6, and for this purpose, the heat absorption room 6 is separated from the ventilated room 2. In this way, the heat exchange duct 7 capable of absorbing the heat of the ventilated room 2 and the air supply duct 8 that supplies air from the heat exchange duct 7 into the ventilated room 2 are communicated with each other. Further, an outside air intake port 9 is provided on the side wall of the heat absorption chamber 6,
The air intake port 9 - the heat absorption chamber 6 - the heat exchange duct 7 -
An air supply path e is formed that communicates the air supply duct 8 and the room to be ventilated 2, and an air supply blower 1 is installed at an appropriate location in this air supply path e.
A suitable number of ventilators 0 and 11 are arranged so that outside air can be forced into the ventilated room 2 through the air supply path e.

Here, the roof 1a of the cowshed 1 is made of a suitable known heat insulating material to insulate the heat absorption chamber 6.

Further, the window 5 opens the roof 1a, and this opening is closed with, for example, double-glazed glass 5a, which has good heat absorption and low heat radiation, and when there is no sunlight, such as at night, the window 5 opens. In order to prevent heat radiation, a heat insulating door 5b is provided on the inside so that it can be opened and closed.

Further, the heat exchange duct 7 that forms the ceiling of the ventilated room 2 and the air supply duct 8 are arranged such that the air supply duct 8 is arranged in the center and the heat exchange ducts 7 are arranged on both left and right sides of the air supply duct 8. Air can be supplied from the upper part of the ventilated room 2 to the ventilated room 2 from a plurality of discharge ports 8a provided at the lower part of the air duct 8, and this heat exchange duct 7 has a second, As shown in FIG. 4, air supply blowers 10 and 11 provided on the opposite side of the air intake port 9 communicate with the heat absorption chamber 6, and an air supply duct 8 is provided on the opposite side of the air intake ports 10 and 11. The outside air taken in from the intake port 9 is sent from one end of the heat absorption chamber 6 to the other end, and then enters one end side of the heat exchange duct 7. Air is supplied to the air supply duct 8 from the other end through the inside of the post-heat exchange duct 7.

That is, the air supply path e is lengthened to increase the heat receiving area, so that the outside air can be efficiently heated by solar heat and the heat inside the ventilated room 2.

In addition, the portions of the heat exchange duct 7 and the air supply duct 8 facing the heat absorption chamber 6 may be colored black to easily absorb solar heat and have a large heat capacity. It is preferable to lay something, for example, pebbles 13, so that it has a heat storage effect.

Further, since the air blowers 10 and 11 need only satisfy the above-mentioned conditions, their number and installation position are arbitrary, and may be appropriately determined according to the capacity of the blowers and the capacity of the cowshed 1.

In the above configuration, in order to ventilate the ventilated room 2, when sunlight is shining during the day, opening the heat insulating door 5b allows solar heat to flow into the heat absorption room 6 through the windows 5... Since the air is absorbed, the air blowers 10, 11, etc. are driven and rotated to warm the outside air sucked into the heat absorption chamber 6 by solar heat.

The air heated in this way is transferred to the ventilated room 2.
Air is sent through a heat exchange duct 7 installed as the ceiling of the room, and this heat exchange duct 7 is heated from the bottom by heat generated from the bodies of the cows in the ventilated room 2. As a result, the air in the heat exchange duct 7 is further warmed and sent to the air supply duct 8, and is supplied from the upper part to the entire area of the ventilated room 2 through the outlet 8a provided at the bottom of the air supply duct 8. .

On the other hand, at the same time, the forced exhaust device 4 discharges the exhaust air from the ventilated room 2 to the outside air from its lower part, so the outside air is warmed by the solar heat and the heat inside the ventilated room 2, as described above. and ventilated room 2
By supplying air from the top to the bottom over the entire area and exhausting from the bottom, fresh and warm air is supplied into the ventilated room 2, while dirty air in the ventilated room 2 is supplied. odors, harmful gases, etc. can be effectively exhausted to the outside, and ventilation can therefore be performed without lowering the temperature of the room 2 to be ventilated.

In addition, when the sun's rays are not shining, such as at night, closing the window 5 with the heat insulating door 5b will prevent heat radiation from the window 5.
Since the outside air is warmed by the heat dissipated inside and then supplied to the ventilated room 2 in the same manner as described above, it is possible to prevent the temperature of the ventilated room 2 from decreasing due to ventilation in such a case as well.

As explained above, according to the ventilation device according to the present invention, when air is taken in from the intake port 9 and outside air is sent into the heat absorption chamber 6, it is warmed by solar heat, and this is further heated by the heat exchange duct 7 in the next step. When the air is supplied, it is further warmed by the heat generated from people, livestock, etc. in the ventilated room 2, and then is sent from the air supply duct 8 to the ventilated room 2.
Air is supplied to the upper part of the ventilated room 2, while dirty air is exhausted from the lower part of the ventilated room 2 by a forced exhaust device 4, and the ventilated room 2 is ventilated. However, even when the outside temperature is low, the outside air is heated by the sun's heat and indoor heat during the day, and by indoor heat only at night, and is warmed by the air supply path e and supplied from the top of the room to the bottom. This allows for ventilation that minimizes the drop in room temperature.

In addition, as a power source, only the air supply blowers 10 and 11 are installed in the air supply path e.
Not only is the structure simple and inexpensive to implement, but maintenance costs are also extremely low.

Example Width 8000mm, length 36000mm, height 2500mm, 4500mm
The test was carried out in a cowshed on the top of the roof.

The walls, heat exchange ducts, and air supply ducts that come into contact with outside air were all insulated with polystyrene foam.

The windows that let in solar heat are made of double-glazed glass, and for nighttime and cloudy weather, a shielding door that is insulated from the inside is installed so that it can be electrically slid horizontally.

Gypsum boards were placed on the parts of the heat exchange ducts and air supply ducts facing the heat absorption chamber, and black-painted stones were laid over the board. A 1 mm thick Al plate was attached to the parts of both ducts facing the inside of the cowshed.

A suction blower was installed in the heat absorption room to take in outside air, and two blowers for blowing air inside the duct were installed in the duct.

Additionally, six blowers were installed in the cowshed approximately 30cm above the floor for exhaust air.

As a result of testing on such a cowshed, it was found that during the winter season, sunlight was shining during the day, and the outside temperature was -
When the temperature was 10°C, the inlet air temperature was +2°C and the inside of the barn was +12°C.

Also, when the outside temperature is -15℃ at night, the inlet air temperature is -2℃.
The temperature inside the cowshed was +8°C, and although the inside of the cowshed was sufficiently ventilated at this time, the temperature did not drop below +6°C.

[Brief explanation of the drawing]

Figure 1 is a schematic front view of a conventional ventilation system for livestock barns.
FIG. 2 is a perspective view of a cowshed showing an embodiment of the ventilation device according to the present invention, and FIGS. 3 and 4 are a schematic cross-sectional view and a schematic longitudinal cross-sectional view of the same device. 2... Ventilated room, 5... Window, 6... Endothermic room, 7
...Heat exchange duct, 8...Air supply duct, 9...
Intake port, 10...Air supply blower, e...Air supply path.

Claims (1)

[Claims] 1. The ventilated room is formed so that forced exhaust is carried out from the lower side, and the attic part is equipped with a window to absorb solar heat and is formed into an insulated heat absorption room.
Between the heat absorption room and the ventilated room, a heat exchange duct capable of absorbing the heat of the ventilated room and an air supply duct that supplies air from the heat exchange duct to the ventilated room are interconnected. from the inlet of the endothermic chamber to the endothermic chamber,
A ventilation system comprising an appropriate number of air supply blowers arranged at appropriate locations in an air supply path that supplies air to a room to be ventilated through a heat exchange duct and an air supply duct.