JPS63105345A - Method and apparatus for ventilating poultry house - Google Patents

Abstract

PURPOSE:To make it possible to ventilate completely and efficiently the entire part of the poultry house by connecting in series a plurality of ventilation ducts arranged by successively providing suction ports on the down-stream side of air blow-off ducts to each other. CONSTITUTION:A blower 2 is contained in an air blow-off duct 3 and primary air is blown off through a tip-throttled nozzle 11 of the air blow-off duct 3 by means of the blower 2. On the downstream side through which the primary air is blown off induction suction ducts 4 which suck up air within a poultry house are successively arranged through suction ports 5, and primary air and air within the poultry house are mixed at a predetermined mixing ratio and are blown off through the throttle nozzle 11. One or more induction suction ducts 4 are successively arranged in accordance with the blast amount and air flow pressure of the blower 2, and a plurality of ventilation ducts are connected to each other in series.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is particularly applicable to sucking the air inside a large-scale poultry house using an air flow from an air blowing duct that blows out air using a blower, and This invention relates to a method and device for ventilation of a poultry house, which is ventilated from an induced suction duct connected to the side.

[Prior art]

The ventilation mechanism inside the poultry house constantly pulls air out to ventilate it, dissipating odors inside the poultry house, releasing moisture, and releasing hot air in the summer to keep the house cool in the summer. This is important to ensure smooth poultry farming operations and from the standpoint of hygiene for chickens and work tools.

Traditionally, poultry houses were ventilated by installing wind fans around the house to draw the air outside, or by creating openings along the roof of the poultry house and installing roof ventilators on top of the openings. is frequently used.

[Problem that the invention seeks to solve]

However, conventional poultry houses equipped with a wind fan ventilation mechanism around the house perform ventilation while drawing in air from the surrounding walls of the poultry house. Therefore, there is almost no flow from the center of the poultry house, and the odor from the poultry house rises toward the ceiling and stays in the center of the poultry house.The reality is that it is extremely difficult to remove the odor, especially in large-scale poultry houses. be. Also, in recent years,
In the poultry industry, in order to improve productivity, large-scale poultry houses are set up alongside rear farms, but since ventilation is carried out by drawing in air from around the poultry house, there is no space between the poultry house and the neighboring poultry house. There is also the problem that the land space of the poultry house cannot be used effectively.

On the other hand, the ventilation system with a roof ventilator installs roof ventilators at specified intervals on the ground surface of the poultry house, and ventilation is performed by taking in air from the bottom of the poultry house. Because the odor immediately rises toward the ceiling from the lower part of the outside, there is no flow to the center of the poultry house where odors accumulate most, making it impossible to ventilate completely and efficiently, especially in large poultry houses. Met.

The present invention was made to solve these problems, and in particular, in the ventilation of large-scale poultry houses, the entire inside of the poultry house can be completely and efficiently ventilated, so that poultry farming operations can be carried out smoothly and comfortably. To provide a ventilation method for a poultry house that is both practical and hygienic for chickens and workers, as well as its device.

[Means for solving problems]

The structure of the present invention for achieving the above object includes at least one induction suction duct that sucks air in the poultry house by the air flow from the air blowing duct that blows out air with a blower, and the downstream of the air blowing duct. The gist of the first invention is to suction and ventilate the air inside the poultry house by arranging a plurality of ventilation duct units in series with suction ports arranged on the side in sequence, and blowing out the air with a blower. At least one induction suction duct that sucks air inside the poultry house by the air flow from the air blowing duct is arranged in a complex vertically arranged ventilation duct unit with suction ports sequentially provided downstream of the air blowing duct. The gist of the second invention is that the units are connected in series.

〔Example〕

An embodiment of the present invention will be described below based on the drawings.

Figures 1 to 3 are views showing one embodiment of the device of the present invention, where Figure 1 is a side view of the end portion thereof, Figure 2 is a front view, and Figure 3 is an enlarged side view of the main part. .

In the figure, 1 is a poultry house, 2 is a blower, 3 is an air blowing duct, 4 is an attraction suction duct, and 5 is a suction port, which constitute the apparatus of the present invention. Note that 6 is a cage for raising chickens, 7 is a floor surface, and 8 is a storage tank for s'R that has fallen from the cage 6.

An air blowing duct 3 and an induction suction duct 4 for ventilating the inside of the poultry house 1 are installed at the upper part of the poultry house 1 suspended from a support 10 from a collected timber 9 installed on the ceiling of the poultry house 1.

The air blowing duct 3 has a built-in blower 2, and the blower 2 blows out primary air from a constricted nozzle 11 at the tip of the air blowing duct 3. On the downstream side from which this primary air is blown out, attraction suction dust 4 that sucks the air inside the poultry house by the air flow is sequentially arranged through the suction port 5, and the primary air and the inside of the poultry house are disposed in sequence. It is mixed with air at a constant mixing ratio and is blown out from a constricted nozzle 11 at the tip of the attraction suction duct 4. At least one (two is shown in the figure) of the induced suction ducts 4 are arranged in sequence according to the air volume and wind pressure of the blower 2, and a plurality of these ventilation duct units are connected in tandem to form the device of the present invention. It is configured. These continuous ventilation duct units can be arranged in any vertical row depending on the scale of the poultry house.

Air blowing duct 3 and induction suction duct 4 of the device of the present invention
The central cylindrical part is made of plastic film, which can be preferably used because the ducts 3 and 4 can be made lightweight and can be installed at low cost.

[Action of the invention]

The device of the present invention thus configured is installed on the ceiling of a poultry house and the blower is operated to blow out primary air from the constricted nozzle 11 at the tip of the air blowing duct 3. At this time, the air inside the poultry house 1 is sucked into the attraction suction duct 4 through the suction port 5 by this air flow, and is blown out from the nozzle 11 at the tip of the attraction suction duct 4. Then, the air inside the poultry house 1 is sucked by this blown air flow and blown out from the next induction suction duct 4, and the air inside the poultry house 1 can be sucked through each suction port 5 to perform ventilation. can.

Since this ventilation duct unit has a plurality of units connected in series, even in a large-scale poultry house 1, air can be uniformly sucked.

〔Effect of the invention〕

As explained above, the apparatus of the present invention can completely and efficiently ventilate even a large-scale poultry house, allowing smooth poultry farming operations. Furthermore, since the odor of chicken manure does not pervade the poultry house, it is extremely effective in terms of hygiene for the chickens and workers. Furthermore, unlike a ventilation system in which a wind fan is installed around the poultry house, the poultry house and the neighboring poultry house can be installed close to each other, which has the value of making effective use of land space.

Furthermore, since the duct cylinder part of the ventilation duct unit can be made of plastic film, it can be provided at an extremely low cost.

[Brief explanation of the drawing]

1 to 3 are views showing one embodiment of the apparatus of the present invention, in which FIG. 1 is a side view of the main part, FIG. 2 is a front view, and FIG. 3 is an enlarged side view of the main part.

Claims (1)

[Scope of Claims] 1) At least one induction suction duct that suctions air in the poultry house by an air flow from an air blowing duct that blows out air with a blower, and sequentially sucks air into the downstream side of the air blowing duct. A ventilation method for a poultry house, characterized in that a plurality of ventilation duct units arranged with openings are arranged in tandem to suction and ventilate the air inside the poultry house. 2) At least one induction suction duct that sucks air inside the poultry house by the airflow from the air blowing duct that blows out air with a blower, and the suction ports are arranged in sequence on the downstream side of the air blowing duct. A ventilation system for a poultry house, characterized in that the ventilation duct units are connected in series in a series of complex units.