JPS6325441A - Ventilating device for cattle stall - Google Patents

Abstract

PURPOSE:To permit the maintenance of a temperature in the titled cattle stall in a constant and uniform temperature, by a method wherein a warmair sending fan is provided in a duct extended from the inside of the cattle stall to the outside of the same through the side wall of the cattle stall which is provided with a suction port, while a multitude of venting holes are provided on the peripheral surface of the duct in a mixing chamber, shielded from the outside of the same, and the mixing chamber is provided with the inlet port of atmosphere. CONSTITUTION:ducts 12, 13, penetrating through the side wall 2 of a cattle stall which is provided with an air suction port 9, and extending from the inside of the cattle stall along the outside of the same, are provided. Warm-air sending fans 15, 18 are provided at ends of the ducts 12, 13 near the opening ends 14, 17 of a horizontal part at the outside of a room 7, in which cattles are grown, while the horizontal part of the ducts 12, 13 at the outside of the room 7 is provided with a multitude of vent holes 16 on the poripheral surface along the total length of the lengthwise direction of the duct, and the terminals of the ducts 12, 13 are closed. Those parts of the ducts 12, 13 which are exposed to the outside of the room 7, and a mixing chamber 20 of atmosphere and warm-air, which is formed at the suction port 9, form the inlet port 24 of atmosphere by winding up a curtain 23 properly.

Description

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

[Conventional technology]

Ventilation in livestock barns where livestock grow is carried out as follows. That is, an intake port and an exhaust port are formed on the side wall of the livestock barn,
An exhaust fan is provided at the exhaust port, and outside air is taken in from the intake port, and the air inside the barn is exhausted to the outside by the exhaust fan.

[Problem that the invention seeks to solve]

In this case, when cold outside air enters in the winter, the temperature inside the livestock barn decreases, and it collides with the warm air inside the barn, causing condensation. Also, there are temperature differences depending on the location within the livestock barn, and in particular, the intake port is higher than the exhaust port. The temperature on the side tends to be high.

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

[Means for solving problems]

To achieve the above object, the present invention provides a ventilation system for a livestock barn in which an intake port and an exhaust port are formed in the side wall of the livestock barn, and an exhaust fan is provided in the exhaust port portion, and the livestock barn is provided with the intake port. A duct is provided that penetrates the side wall and extends from the inside of the livestock barn to the outside, and a warm air blowing fan for blowing warm air inside the livestock barn to the outside is provided within this duct, and a fan is provided between the intake port and the outside. A mixing chamber that includes the exposed duct portion and is shielded from the outside is provided, and a large number of through holes are provided on the circumferential surface of the duct in the mixing chamber, and an outside air inlet is provided in the mixing chamber. shall be.

[Effect]

In winter, etc., operate the warm air blowing fan. As a result, the warm air inside the livestock barn is sucked into the duct, and the warm air is blown out into the mixing chamber through the holes provided in the duct, mixes with the outside air that flows into the mixing chamber through the air inlet, and warms it to an appropriate temperature. The outside air flows into the livestock barn through the intake port. Therefore, the temperature inside the livestock barn does not drop and can be maintained within a certain range, and there are no temperature differences depending on location, and the temperature inside the livestock barn is averaged.

In addition, since the warm air inside the duct is cooled by outside air in the mixing room and condenses, the dehumidified warm air blows out from the duct holes, mixes with the outside air, and flows into the livestock barn, reducing the dehumidification effect inside the livestock barn. be.

In cases other than those mentioned above, the warm air supply fan may not be operated and the outside air may be taken directly into the livestock barn.

The air inside the livestock barn is then exhausted from the exhaust port by the exhaust fan.

In this way, the inside of the livestock barn can be kept at a constant and uniform temperature while being ventilated.

〔Example〕

Fig. 1 is a side sectional view of the livestock barn, Fig. 2 is a front view, Fig. 3 is a plan sectional view, and Fig. 4 is an explanatory diagram of the duct.

The livestock barn 1 is a long building with a triangular roof, and has a pair of horizontally long side walls 2 that face each other, a mountain-shaped roof 3 provided above these walls, and both ends of the space surrounded by these are closed off. It is composed of an end wall 4. Inside the livestock shed 1, a horizontal ceiling 5 is provided at the upper end of the side wall 2, and the lower space is defined by partition walls 6 provided at both ends in the longitudinal direction, forming a room 7 in which the livestock grow, and a room 7 located at both ends thereof. front part 8
It is divided into An air intake port 9 is provided on one side wall 2.
is formed, and an exhaust port 10 is formed in the other side wall 2. The intake port 9 is an elongated rectangular opening that extends horizontally from one end of the room 7 to the other, and is provided at the center of the side wall 2 in the vertical direction.

A guide plate 11 extending obliquely upward from the lower end of the intake port 9 is provided in the chamber 7 of the intake port 9, and the outside air flowing in from the intake port 9 is guided upward by the guide plate 11. And, outside the chamber 7 at the bottom of the intake port 9, there are two
Parts of vinyl ducts 12, 13 are arranged in the rows. The upper duct 12 is open at one end, and this open end 14
is disposed at the longitudinal end of the room 7 where livestock grows, in the upper part between the side walls 2, and the duct 12 is connected to this open end 14.
It extends downward from the corner of the room 7, passes through a through hole provided in the side wall 2 of this corner, and exits the room 7.
It then extends horizontally from one end to the other outside the chamber 7, and is closed off at the other end. A hot air supply fan 15 is provided at the end of the horizontal portion of the duct 12 near the open end 14, and a large number of through holes 16 are provided on the circumferential surface of the horizontal portion of the duct 12 outside the room 7. is provided along the entire length in the longitudinal direction, and is configured such that warm air in the room 7 where the livestock grows passes through the duct 12 and blows out from the hole 16 in the horizontal portion by the warm air supply fan 15. The lower duct 13 has the same structure as the upper duct 12, and its open end 17 is disposed at a position opposite to the end opposite to the side where the open end 14 of the upper duct 12 is arranged. It extends downward from the open end 17 toward the corner of the room 7, passes through a through hole provided in the side wall 2 of this corner, exits the room 7, and then extends horizontally across the outside of the room 7. It extends from the end to the end, and the other end is closed. A warm air supply fan 18 is provided at the end of the horizontal portion of the duct 13 near the opening end 17, and a large number of through holes 19 are provided on the circumferential surface of the horizontal portion of the duct 13 outside the room 7. is provided over the entire length in the longitudinal direction, and the warm air in the room 7 where the livestock grows passes through the duct 13 and is blown out from the hole 19 in the horizontal portion by the warm air supply fan 18.

Then, a mixing chamber 20 for mixing outside air and warm air is formed in the duct 12 and 13 parts exposed to the outside of the room 7 and the intake port 9 part.

This mixing chamber 20 has end walls 21 vertically protruding from the side walls 2 on the outside of both longitudinal ends of the duct 12° 13, a roof 22 provided at the upper end of these end walls 21, and a duct) 1.
2. Curtain 2 that can be rolled up in front of 13
3, and by appropriately rolling up the curtain 23, an air inlet 24 for taking in outside air is formed. Therefore, the opening area of the air inlet 24 can be adjusted by the curtain 23, and the amount of outside air taken in can be adjusted.

The exhaust port 10 is an elongated rectangular opening extending horizontally from one end of the room to the other, and is provided at the lower part of the side wall 2 in the vertical direction. The exhaust port 10 is provided with a large number of exhaust fans 25 at intervals in the longitudinal direction, and an exhaust duct 26 extending downward from the exhaust port 10 is provided outside the room 7.

Therefore, in winter, etc., warm air supply fan 15.18
Activate. As a result, warm air from the room 7 where the livestock grows is drawn into the duct 12.13 from the open end 14.17, and the through hole 16.19 provided in the duct 12.13 is sucked into the duct 12.13.
The warm air blows out into the mixing chamber 20, mixes with the outside air flowing in from the inlet 24, and the outside air warmed to an appropriate temperature flows into the room 7 where livestock grow through the inlet 9.

Therefore, the temperature in the room 7 where the livestock grows does not drop,
The temperature can be maintained within a certain range, and there are no temperature differences depending on location, so the temperature inside the building is averaged.

In addition, the warm air in the duct 12.13 is cooled by the outside air in the mixing chamber 20 and condenses, and the water droplets flow into the duct 12.13.
It is discharged from the through hole 16°19 provided at the bottom of the. Therefore, the dehumidified warm air flows through the holes 1 of the ducts 12 and 13.
6.19, mixes with the outside air, and flows into the room 7, which has the effect of dehumidifying the room 7 where livestock grow.

In cases other than the above, the warm air supply fan 15
．． 18 may not be activated and the outside air may be directly taken into the room 7 where the livestock grow.

Then, the air in the room 7 where the livestock grows is exhausted to the outside through the exhaust port 10 and the exhaust duct 26 by the exhaust fan 25.

In this way, the livestock barn 1 is ventilated while the livestock barn 1 is being ventilated.
The inside temperature 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.

In addition, warm air inside the livestock barn is cooled by outside air in the duct, condenses, and the outside air mixed with dehumidified warm air flows into the livestock barn, which has the effect of dehumidifying the interior of the livestock barn.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side sectional view of a livestock barn, FIG. 2 is a front view, FIG. 3 is a plan sectional view, and FIG. 4 is an explanatory view of a duct. 1 is a livestock shed, 2 is a side wall, 7 is a room where livestock grows, 9 is an intake port, 10 is an exhaust port, 12.13 is a duct, 14.17
is the open end, 15.18 is the hot air supply fan, 16.19
20 is a mixing chamber, 23 is a curtain, 24 is an inlet, 25 is an exhaust fan, and 26 is an exhaust duct. Figure 3 Figure 4

Claims (1)

[Claims] In a ventilation system for a livestock barn, in which an intake port and an exhaust port are formed in the side wall of the livestock barn, and an exhaust fan is provided at the exhaust port, the ventilation device penetrates the side wall of the livestock barn where the intake port is provided and extends from the inside of the livestock barn to the outside. In addition to providing an extending duct, a warm air blowing fan for blowing warm air inside the livestock barn to the outside is provided in the duct, and the duct includes the intake port and the duct portion exposed to the outside and is shielded from the outside. Set up a mixing room,
A ventilation system for a livestock barn, characterized in that a large number of through holes are provided on the circumferential surface of the duct in the mixing chamber, and an inlet for outside air is provided in the mixing chamber.