JP2547407B2 - Ventilation system for windless barn for raising small animals - Google Patents

Description

The present invention relates to a windless barn for animal breeding for breeding relatively small animals such as chickens and pigs, and particularly to a cage system in which a large number of cages are stacked. The present invention relates to a ventilation device for a windless barn for raising small animals in which a large number of rows are arranged at intervals and the air flowing from under the floor is exhausted by a roof fan provided on the roof top.

[Conventional technology]

At present, in the poultry industry, the pig industry, etc., a large number of chickens, pigs and other animals are intensively managed and raised in a small space, and in order to shorten the growth period as much as possible, breeding in a windless barn is widely performed. There is.

When using such a windless barn, a large number of cages or cage systems in which a plurality of breeding boxes are stacked are arranged in multiple rows at the intervals of the passages in the room, which creates a good environment for the animals being raised. Sufficient ventilation is required to maintain.

In the conventional ventilation of a windless barn, a suction fan is provided on the side wall under the floor, outside air is sucked in from a slit provided at the upper end portion of the side wall, and this air is discharged to the outside through the hole in the floor, or vice versa. There is known a method in which a roof fan is provided at the top of the roof, external air is sucked through a hole in the floor from an opening provided with a side wall under the floor through an opening with an automatic adjustment plate, and the roof fan discharges the outside air to the outside. In these methods, in the case of a so-called upright cage system in which a large number of cages or breeding boxes are stacked, many small animals are kept in the cages, etc. It was difficult to positively exhaust the air and heat inside the cages and breeding boxes through only the passages between the boxes.

In order to solve this drawback, a cage or breeding box is installed above the hole in the floor to make it easier for air to flow up and down in the case of a breeding box. A ventilation system has been proposed in which the air sucked into the room from each of the cage systems is passed through each cage system from the top to the bottom and further through the holes in the floor on which the cage system is placed, and is exhausted by a fan. It was

[Problems to be solved by the invention]

However, such a ventilation device has the following problems: (1) It is difficult to make air flow uniformly from the top to the bottom of the cage because there are many animals in the stacked cages, and the air still flows from the road. It was inevitable. Therefore, trying to let air penetrate from the top to the bottom of the cage system requires blocking the flow of air from the passage into the cage and increasing the size of the fan to allow a large amount of air to flow. With such a solution, the animals in the uppermost cage will always be exposed to strong winds, and the height of the cage will have a different effect on breeding, and the observation inside the cage and the management of the animals will also be disturbed. Come on.

(2) In addition, it is difficult to adopt a ventilator that penetrates air from the top to the bottom of the cage because it is necessary to install an egg collection facility for each cage when the purpose is to collect eggs such as chicken. .

(3) Furthermore, since the hot air originally emitted by an animal produces an ascending airflow, it is not preferable for the animal to supply a downward airflow, and extra power is used. Therefore, due to the reason of the above (1), it is inevitable that the fan, the duct and the like become large.

It is an object of the present invention to provide a ventilation device capable of achieving sufficient ventilation with a relatively small and inexpensive device for a windless barn for raising animals of the type described above. .

[Means and Actions for Solving Problems]

According to the present invention, a cage system in which a large number of cages are stacked in a barn is arranged in multiple rows at intervals of passages, and the air flowing from under the floor is exhausted by a roof fan provided at the roof top to raise small animals. In a ventilation system for a windless barn for animals, by providing a duct device that distributes upward air to the lower part of each cage from a main duct through multiple branch ducts separately from the air from the underfloor, each cage from the duct device is separated. The air that has passed through and is discharged into the passage is exhausted to the outside by the roof fan, and at this time, uniform, smooth and sufficient ventilation can be performed for each cage.

〔Example〕

An embodiment of a middle floor poultry house according to the present invention will be described below with reference to the drawings. The poultry house of the present invention is applicable to both low-floor and high-floor poultry houses.

The poultry house 1 shown is a so-called mid-story type, and four rows of chicken storage cage systems 13 are provided on the floors 2 on both sides of the room which are surrounded by side walls 3 and partitioned by a central partition wall 4.
Are arranged in the longitudinal direction of the poultry house 1 at intervals of passages. Four cages 14 are stacked on each cage system 13, and an egg transporting device 16 extends vertically along the cage 14 at the lower end of each cage 14 and is provided between the egg transporting device 16 and the cage body. The air 15 is formed. Feed gutters 17 are provided on both sides of the cage. Another egg transporting device 18 extends laterally to the cage row at one end of the cage system 13, the end of which extends into an egg storage chamber 19 adjacent to the poultry house 1.

A large number of through holes 6 are opened on the base of the poultry house 1, and an inward opening automatic curtain 7 is attached to each opening. The automatic curtain 7 automatically adjusts the inflow amount of air. An appropriate number of holes 5 are opened in the passage of the floor 2 of the poultry house 1 so that the air flowing in from the through holes 6 is sent into the room. A roof fan 9 is provided on the top of the roof 8 of the poultry house 1 to discharge the indoor air to the outside. Roof fan 9
A horizontal plate 10 whose position can be adjusted up and down is provided underneath, and a large number of opening and closing plates 11 are provided on the roof fan 9 to adjust the flow rate of air passing through the roof fan 9. . In addition, at the top of the roof, there is a shield cylinder to prevent rainwater from entering.
Twelve are provided.

A main duct 20 extends laterally near the ceiling in the upper part of the poultry house 1, and the main duct 20 reaches each cage 14 by a branch duct. That is, an intermediate duct 21 extends downward from the main duct 20 for each cage system 13, and a small duct 22 reaching each cage 14 extends from these intermediate ducts 21. Small duct 22 is in each cage
14 It opens to the space 15 below.

It is desirable that the duct be provided with an appropriate air flow rate adjusting device so that the flow rate can be adjusted automatically or manually according to climatic conditions.

The main duct 20 is fed with clean air whose temperature and humidity are adjusted as required. The air is divided from the main duct 20 into the intermediate duct 21 and further into the small duct 22 and flows upward from the space 15 into each part in the cage 14. The air that has flowed into the cage 14 rises to the lower side of the egg transportation device 16 and is discharged to the passage from both sides of the cage together with the atmosphere inside the cage. The passage between adjacent cage systems 13
Since there is an air flow rising from the holes 5 in the floor, the air coming out of the cage reaches the ceiling 8 by the rising air in the passage and is discharged to the outside by the roof fan 9.

Although there are many small animals in the cage, the air warmed by the heat of these small animals tends to collect under the egg transporter 16 on the ceiling of the cage 14, but clean air supplied from the small duct 22. As described above, the stagnant air can be forcibly discharged into the passage to keep the inside of the cage clean.

The above is the case of the middle floor type poultry house, but the same can be applied to the case of the high floor type poultry house. In the case of a low floor poultry house, it is usual to install a blower pipe under the floor, so that similar ventilation can be performed using this. Depending on the case, the main duct may be provided in a place other than the vicinity of the ceiling, for example, under the floor.

Furthermore, the present invention can be similarly applied to a barn for small animals other than a chicken house.

〔The invention's effect〕

Since the present invention is configured as described above, the air distributed to each cage or breeding box flows upwards therein,
Then it is discharged into the passage and discharged from the roof. for that reason,
The cage or breeding box has a uniform flow rate and a smooth flow of air, so that the inside can always be kept clean.
Therefore, the additionally installed ventilator may be relatively small and requires less space and expense.

[Brief description of drawings]

The drawings show a mid-bed poultry house in which the present invention is implemented.
The drawing is a sectional front view, FIG. 2 is a horizontal sectional view of the same, FIG. 3 is a sectional side view, and FIG. 4 is a front view of a cage system. 1 …… Poultry house, 2 …… Floor, 5 …… Hole, 9 …… Roof fan, 13…
… Cage system, 14 …… Cage, 15 …… Space, 16 …… Egg transport device, 20 …… Main duct, 21 …… Intermediate duct, 22 …… Small duct

Claims (1)

(57) [Claims] 1. A small animal breeding system in which a large number of cage systems in which a plurality of cages are stacked are arranged in a row in a barn at intervals of passages so that air flowing from under the floor is exhausted by a roof fan provided on the roof top. In a ventilation system for a windless barn, apart from the air from the underfloor, a duct device for distributing upward air is provided at the bottom of each cage through a number of branch ducts from the main duct, and the duct device passes through each cage. A ventilation device for a windless barn for raising small animals, characterized in that the air discharged to the passage is discharged to the outside by the roof fan.