JPS5824698B2 - Windowless chicken house with automatic ventilation control - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pull-out type windowless poultry house equipped with an automatic ventilation control device.

Windowless chicken houses are mainly popular as broiler chicken houses.

The pull-out type (opposite wall/exhaust type) is the mainstream, but its automatic ventilation system controls the exhaust operation based on changes in the indoor temperature and adjusts the exhaust volume (ventilation amount) to ensure proper ventilation. In addition, in order to improve the ventilation inside the housing, the opening and closing of the air intake holes is controlled by the pressure difference between the inside and outside of the breeding housing, and an appropriate popular wind speed is obtained. has also been done.

However, such conventional automatic ventilation systems cannot sufficiently remove the influence of natural wind, and cannot provide ventilation as expected.

In particular, pull-out type windowless poultry houses are susceptible to the effects of natural winds that change rapidly in terms of wind direction, wind speed, etc., and in principle, in a fair wind (wind blowing from the popular side), popularity and displacement will increase. This causes a state of hyperventilation, and due to the headwind (wind blowing from the exhaust side), the volume and displacement decrease, resulting in poor ventilation.

Another drawback is that when overventilating due to the standard fair wind, heating equipment is forced to operate excessively in order to maintain the temperature inside the building, resulting in a waste of fuel.

In other words, in the conventional automatic ventilation system, the operation of the exhaust fan is controlled based on changes in the temperature inside the building, so when the external environment is brought into the building by natural wind, there is no need to immediately respond to the change. Changes in indoor temperature (11j) are handled only by the operation of the standard temperature sensing device, so changes in indoor temperature will also be gradual in response to relatively gradual changes in outside temperature, such as changes in day and night. Although the number of blows is small and has little effect on the animals, things like natural wind that change rapidly in a short period of time and have a big impact on popularity and exhaust air can lead to improper ventilation and sudden changes in indoor temperature. This will be repeated and will have a negative impact on the animals.

As a result of various research aimed at eliminating the conventional drawbacks and reducing the influence of natural wind on the automatic ventilation control of pull-out type windowless poultry houses, the inventor found that natural wind changed its popularity and displacement. The present invention was achieved by focusing on the fact that changes in the atmospheric pressure within the breeding house are correlated with the direction and speed of natural wind.

The purpose of the present invention is to eliminate the difference between the inside and outside air pressure inside the breeding house.

Provided is a windowless poultry house characterized by being equipped with an automatic ventilation control device consisting of an exhaust fan operating device that controls the operation of the exhaust fan and a popular control plate opening/closing device that controls the opening degree of the air intake hole depending on the temperature inside the breeding house. It is to be.

In the configuration of the present invention, an inlet opening degree control device connected to an inlet house temperature sensor (breeding house temperature sensor) and an inlet opening degree adjustment plate actuating device provided in the inlet hole installation part, and an inlet hole installation Connected to the internal/external pressure sensor (sensor for the difference between the internal pressure and external pressure of the breeding house) installed in the breeding house and the exhaust fan device installed so that the fan is located at the opening of the exhaust hole. This is a pull-out type windowless poultry house characterized by being equipped with an automatic ventilation control device consisting of an exhaust fan operation control device.

In the present invention, the indoor temperature means the temperature difference between the set indoor temperature and the actual indoor temperature, and the indoor temperature sensor means a device that detects the temperature difference.

In addition, the set house temperature means the house temperature suitable for raising chickens, for example, 22 to 23 degrees Celsius for chicks and around 20 degrees Celsius for 250-year-old chicks, and the actual house temperature refers to the temperature at which chickens are raised. It means the actual indoor temperature.

The internal/external air pressure sensor for the breeding house consists of a device body that senses the difference between the inside and outside air pressure, and an inlet/output pipe that allows air flowing into the air inlet into and out of the body. The entrance of the inlet/outlet pipe is located at the opening of the air intake hole, looking from the outside wall of the building.

According to the present invention, by controlling the rotation of the exhaust fan using an internal and external pressure sensor that detects the difference between the internal and external pressures of the breeding house, the popular wind speed can be stabilized by eliminating changes in the ventilation amount due to natural wind. The air intake hole has a stable air velocity, and the amount of air flow is determined by its opening area, so since the opening degree of the air hole is controlled by a temperature sensor inside the breeding house, it is possible to obtain the appropriate amount of ventilation according to the temperature inside the house. can.

Therefore, they can be raised in a good environment.

On the other hand, if the inlet opening is controlled by the difference between the internal pressure and the external pressure of the breeding house, the popular wind speed will be stable against the influence of natural wind.
However, since the popular wind speed is stabilized while ignoring the popular quantity, the popular quantity has the effect of magnifying the influence of natural wind, making it difficult to measure appropriate ventilation.

Next, embodiments of the present invention will be described with reference to the drawings.

The drawings illustrate one embodiment of the invention.

In the figure, 1 is an air inlet hole provided on the side wall of the windowless breeding house, 2 is an exhaust hole provided on the side wall opposite to the side wall where air inlet hole 1 is provided, and 3 is a popular opening adjustment plate with one end edge. (lower edge in the drawing) is a popular board that is pivotally supported on the lower edge of the opening edge of the intake hole and is provided inside the building so that it can be opened and closed freely. 4 is an exhaust fan, which is installed at the opening of the exhaust hole; 5 is an indoor temperature sensor that detects the temperature inside the breeding house; 6 is a rearing device that detects the difference between the internal pressure of the breeding house (the indoor pressure set as desired) and the outside pressure of the breeding house. The air sensor inside and outside the building transmits the difference between the inside and outside air pressure to the exhaust fan rotation control device 10ν. Static pressure sensor installed to eliminate the negative effects of natural wind due to excessive ventilation when the wind blows towards the exhaust hole 2) or insufficient ventilation during the back wind (wind blowing towards the exhaust hole 2).
is a drive device for the popularity/opening adjustment plate 3, which is a popularity adjustment plate actuation device consisting of a motor operated by a command from the intake opening adjustment plate operation control device 9; A rope 9 is attached to the air intake opening adjustment plate actuating device 7, and the other end is attached to the air intake opening adjustment plate actuating device 7, and pulls the air intake opening adjusting plate 3 by the operation of the actuating device 1; With plate actuation control device,
Popular opening adjustment plate operating device 1 based on command from indoor temperature sensor 5
10 is a device for operating an exhaust fan, which is activated by commands from the internal/external pressure sensor 6 of the breeding house to control the rotation of the exhaust fan; 11 is a shielding plate.

A member that blocks the inlet hole 1 and the exhaust hole 2 to prevent light from entering the building is shown.

In the drawing, the popular opening adjustment plate is opened upwards,
With the inside temperature sensor and the outside air temperature sensor, the popular opening adjustment plate 3 can be opened not only upwards but also downwardly.
It is also possible to change the popular wind direction up or down if necessary.

The present invention has the above-mentioned configuration, and the opening of the popular opening adjustment plate 3 is controlled by the intake air opening adjustment plate operation control device 9 and the intake air opening adjustment plate drive device 7 according to the command from the indoor temperature sensor. Controlled by popular opening traction rope 8.

That is, if the actual indoor temperature is lower than the set temperature suitable for rearing chickens, the opening adjustment plate 3 is pulled up with the rope 8 depending on the lower degree, and the opening of the popular plate is narrowed to a temperature higher than the set temperature. In the case of VC, the rope 8 becomes loose due to the high degree of VC, and the opening of the air intake opening adjustment plate 3 is increased by its own weight. Controls the operation of the fan, i.e., turns on the exhaust fan when the pressure difference inside and outside the enclosure is lower than the set pressure difference inside and outside the house necessary to obtain the popular wind speed that indicates the appropriate ventilation channel. By increasing the temperature difference between the inside and outside air pressure and sensing the rotation of the exhaust fan when it is higher than the set indoor/outside pressure difference, it responds sensitively to changes in the air displacement and air speed due to natural wind, and adjusts the set indoor temperature. Since drastic changes can be prevented, the set popular wind speed and exhaust volume can be maintained, and good indoor ventilation can be maintained, chicken rearing and fattening can be carried out effectively.

[Brief explanation of drawings]

It is a drawing which shows -flJ of implementation of this invention in drawing.

Claims (1)

[Claims] 1. In a poultry house equipped with an automatic ventilation control device, an exhaust fan operating device consisting of an internal and external pressure sensor of the breeding house and an exhaust fan rotation control device, an internal temperature sensor, a popular opening adjustment plate operation control device, and a popular opening control device. It is equipped with an automatic ventilation control device consisting of a control plate drive device and a control plate opening/closing device, which controls the movement of the exhaust fan based on the pressure difference inside the breeding house, and controls the movement of the exhaust fan based on the temperature difference inside the house. A windowless poultry house equipped with an automatic ventilation control device, which is characterized by controlling the opening degree of the inlet holes.