JPH0240940B2 - CHIKUSHANOKANKISOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ventilation system for a livestock barn. That is,
This relates to a ventilation system that mixes the air inside the barn where livestock such as chickens and pigs grow with the air outside the barn.

[Prior art] Ventilation in livestock barns where livestock grow is performed as follows. That is, an outside air intake fan is attached to a ventilation hole in a side wall of the attic of the livestock barn, and the outside air is taken into the attic by this outside air intake fan. This outside air then flows into the room below where livestock grow through a plurality of ventilation holes provided in the ceiling. On the other hand, the air in the room where livestock grow is exhausted to the outside through an exhaust passage provided in the livestock barn.

[Problem that the invention seeks to solve]

In this case, when cold outside air enters during winter, etc., the temperature inside the room where the livestock grows decreases, and temperature differences tend to occur depending on the location within the room. In this case, if the intake amount of outside air is reduced in order to maintain the temperature inside the building, the outside air will not be able to reach areas far from the outside air intake fan. Temperatures tend to be higher in places far from the fan. This causes a temperature difference in the outside air that flows from the attic into the room below where the livestock grow, resulting in a temperature difference depending on the location within the room where the livestock grow. Also, by reducing the amount of outside air taken in, the wind speed flowing out from the ceiling vents will become weaker.
There will be a temperature difference between the upper and lower parts of the room where livestock grow. In addition, when the intake amount of outside air is reduced, the wind speed becomes weaker as the distance from the outside air intake fan increases, creating a difference in wind speed of outside air flowing from the ceiling into the room below where livestock grow. Temperature differences will occur depending on the location within the room. As described above, conventional ventilation systems have the problem of not being able to maintain a constant and uniform temperature in the room where livestock grow during ventilation. Furthermore, there is the problem that the wind speed inside the building cannot be kept constant.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a ventilation system for a livestock barn that can always maintain a constant and uniform temperature in the livestock barn even when ventilation is performed, and also maintain a stable and uniform wind speed. With the goal.

[Means for solving problems]

In order to achieve the above object, the present invention has an arrangement in which an outside air intake fan is attached to a ventilation hole in a side wall in the attic of a livestock barn, and the outside air is taken into the attic by the outside air intake fan, and the outside air is provided in the ceiling. into the growing chamber below through the vents,
On the other hand, in a ventilation system for a livestock barn where the livestock barn is provided with an exhaust passage for discharging the air in the room where the livestock grows, an opening is provided in the ceiling, and this opening allows the air in the room where the livestock grows to flow into the ceiling. It is characterized by being equipped with an air feeding fan.

[Effect]

During winter, etc., operate the indoor air blowing fan.

As a result, the warm air from the room where the livestock grows is sent into the attic, mixes with the outside air that flows into the attic by the outside air intake fan, and the appropriately warmed outside air passes through the ceiling vents. They are then sent into the room where livestock grow. Therefore, the temperature of the room where the livestock grows does not drop and is maintained within a constant temperature range. In addition, the warm air fan increases the speed of the outside air flowing from the ceiling vent into the room where livestock grows, and the warm air fan allows the outside air to spread throughout the ceiling, The temperature and wind speed of the outside air flowing out from the ventilation holes into the room where the livestock grow are also equalized. Therefore, there is no possibility that the temperature in the room where the livestock grows varies depending on the location.

When it is not winter, the hot air supply fan is not operated, and the outside air taken in by the outside air intake fan is directly taken into the room where the livestock grows.

On the other hand, the air in the room where livestock grow is exhausted to the outside through an exhaust passage provided in the livestock barn.

In this way, the inside of the livestock barn is ventilated,
The temperature inside the livestock barn can be maintained at a constant and uniform temperature.

〔Example〕

FIG. 1 is a perspective sectional view of the livestock barn, FIG. 2 is a plan sectional view thereof, and FIG. 3 is a front sectional view thereof.

The livestock shed 1 is a long building with a triangular roof, consisting of a pair of horizontally long side walls 2 that face each other, a mountain-shaped wall 3 that extends from the upper end of these walls to form a roof, and a space surrounded by these. and an end wall 4 that closes both ends. The inside of the livestock barn 1 is partitioned into upper and lower parts by a horizontal ceiling 5 provided at the upper end of the side wall 2, and the space further below is partitioned by partition walls 6 provided at both longitudinal ends for the growth of livestock. room 7
and a front section 8 located at both ends thereof. The side wall 2 and the chevron-shaped wall 3 have a double wall structure, and the space between the double walls constitutes an exhaust path for discharging the air in the room 7 where the livestock grows to the outside. The lower end of the inner side wall 2 is cut out along the entire lengthwise direction to form an opening 10. The gas is discharged to the outside from an opening formed at the top of the outer chevron wall 3 through a discharge passage 9 formed of a double wall of the chevron wall 3. Note that 11 is a small mountain-shaped roof provided to cover the upper part of the opening at the top of the mountain-shaped wall 3, and 12 is a roof plate that covers the upper surface of the mountain-shaped wall 3.

Ventilation holes 1 are provided in both end walls 4 of the attic space 13.
4 is provided, and an outside air intake fan 15 is attached to this ventilation hole 14 to take outside air into the attic space 13. In the ceiling 5, a plurality of slits 16 extending in the longitudinal direction are provided at intervals in the width direction.
6 and flows into the room 7 below where the livestock grow.

On the other hand, openings 17 are provided in the ceiling 5 at both ends in the longitudinal direction of the room 7 where livestock grow, and warm air from the room 7 where livestock grows is supplied to the ceiling 5 through these openings 17.
A warm air sending fan 18 is attached to send warm air to the air conditioner 3.

Therefore, the warm air blowing fan 18 is operated when the young chicks are growing or during winter. As a result, the heat in the room 7 where the livestock grows is heated to the ceiling 1.
3, mixed with the outside air flowing into the ceiling 13 by the outside air intake fan 15, and heated to an appropriate temperature, the outside air flows through the slit 16 into the room 7 where the livestock grows. Therefore, the temperature in the room 7 where the livestock grows does not drop and can be maintained within a certain range, and there are no temperature differences depending on the location, and the temperature in the house is averaged. In addition, the warm air blowing fan 18 spreads the wind to the central part in the longitudinal direction, and the temperature and wind speed of the outside air flowing out from the ceiling slit 16 are made uniform in the longitudinal direction, so that the room 7 in which livestock grows The internal temperature does not vary depending on the location and is maintained at a uniform temperature.

In cases other than the above, the hot air supply fan 18 is not operated and the outside air intake fan 15 is operated.
The outside air taken in by the air can be directly taken into the room 7 where the livestock grow.

And, as mentioned above, room 7 where livestock grow
The air inside is discharged from the lower end opening 10 of the inner side wall 2 through the exhaust passage 9 to the outside through the opening in the roof.

In this way, the inside of the livestock barn 1 is ventilated and the temperature inside the livestock barn 1 is maintained at a constant and uniform temperature.

〔Effect of the invention〕

As explained above, according to the present invention, when ventilating a livestock house, by using the indoor air warmed by the sensible heat of the chickens, it is easy to maintain and equalize the temperature inside the house, and the feed Increased efficiency.

Furthermore, even if the amount of outside air intake is reduced during the winter season, the temperature and wind speed of the outside air flowing out from the ventilation holes in the ceiling can be made uniform, so that the temperature inside the building can be maintained evenly.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective sectional view of a livestock barn, FIG. 2 is a plan sectional view thereof, and FIG. 3 is a front sectional view thereof. 1 is a livestock shed, 5 is a ceiling, 7 is a room where livestock grows, 9 is an exhaust path, 10 and 17 are openings, 13 is an attic, 14 is a ventilation hole, 15 is an outside air intake fan, 1
6 is a slit, 18 is a warm air supply fan.

Claims (1)

[Claims] 1. An outside air intake fan is attached to the ventilation hole in the side wall of the attic of the livestock barn, and the outside air taken into the attic by this outside air intake fan passes through the ventilation hole in the ceiling and allows the livestock below to grow. In a ventilation system for a livestock barn, in which air flows into the room and the livestock barn is provided with an exhaust path for discharging the air in the room where the livestock grows, an opening is provided in the ceiling, and the opening is used to draw the air inside the room where the livestock grow. A livestock barn ventilation system characterized by being equipped with an indoor air supply fan that sends air into the ceiling.