JP3977855B2 - Ventilation device and poultry house equipped with the same - Google Patents

Description

  The present invention relates to an air inlet device and a ventilator provided in a building, and more particularly to an air inlet device and a ventilator that can perform ventilation of a breeding house such as a poultry house in stages.

  In poultry houses and pig house buildings (hereinafter referred to as breeding houses) that breed chickens and pigs (hereinafter referred to as domestic animals), the air staying inside the breeding house is contaminated by carbon dioxide, manure, etc. discharged from livestock. When the degree of this contamination becomes high, there arises a problem that the physical strength of the livestock is reduced and the mortality rate of the livestock is increased. Furthermore, if air stays inside the breeding house, the temperature inside the breeding house becomes high especially in the summer, which also causes a decrease in the physical strength of the livestock and an increase in the mortality rate. In order to solve such a problem, conventionally, ventilation has been performed in which the air inside the breeding house is discharged to the outside and the outside air is taken into the breeding house.

  Patent Document 1 below discloses a ventilation device for ventilating a breeding house. In this document, the inside of a breeding house is detected by a temperature sensor, and the rotation of a plurality of blowers is controlled using a controller according to the detected temperature. This provides good ventilation conditions for livestock reared inside the breeding house.

If the following patent document 2 is referred, the technical matter regarding the air inlet for taking in air from the inside in breeding houses, such as a poultry house, is indicated. Specifically, in this document, unevenness of the flaps or baffles is eliminated by providing an opening / closing adjustment fitting in a sliding portion for operating the flaps or baffles. As a result, the operation of a flap or the like that operates to take outside air into the breeding house is controlled accurately and ventilation inside the breeding house is surely performed.
JP 2004-190616 A Japanese Patent Laid-Open No. 10-243755

  However, the technical matters described in Patent Document 1 are mainly related to a blower that discharges the air inside the breeding house to the outside, and there is no disclosure about the air intake mechanism that takes outside air into the breeding house. It was. Therefore, only the technique described in this document can ventilate the inside of the breeding house, but a large amount of air inside the breeding house is released to the outside in a short time, and the temperature inside the breeding house changes rapidly, There was a risk of adversely affecting stored livestock.

  Moreover, in the technical matter described in the above-mentioned Patent Document 2, it is possible to reliably open and close a flap or the like for introducing outside air into the breeding house, but a matter for suppressing a rapid temperature change inside the breeding house due to ventilation is proposed. Not.

  That is, with the existing technology for ventilation of buildings, fine ventilation and temperature control inside the breeding house are difficult.

  In particular, fine ventilation and temperature control are required in the poultry industry when raising chicks inside a poultry house. This is because chicks of the first few days have no physical strength and are smaller. Specifically, it must be avoided that outside air having a lower temperature than the room is blown directly onto the chicks so that the chicks are not deprived of their physical strength. Furthermore, the temperature inside the poultry house needs to be controlled within a temperature range of 28 ° C. to 31 ° C. (particularly preferably about 30 ° C.) in the case of days 0 to 2, for example. In order to control the temperature inside the poultry house within such a temperature range, a very advanced ventilation technique is required.

  In large-scale breeding houses, the use of conventional ventilators tends to increase livestock mortality. One of the causes is that, for example, in a large-scale breeding house with length × width = 100m × 10m or more, it is difficult to ventilate the air staying inside, and air containing harmful ammonia is raised. This is because it remains locally inside the building.

  The present invention has been made in view of the above problems. A main object of the present invention is to provide an air intake device and a ventilation device capable of finely and appropriately adjusting the amount of air supplied from the outside into the inside of the breeding house.

  The ventilator of the present invention is a ventilator provided in a building having a first side surface in a short direction and a second side surface in a longitudinal direction,
  An exhaust device provided on the first side surface and having a plurality of fans for releasing air inside the building to the outside;
  A plurality of air intake devices provided on the second side surface and having a plurality of opening and closing parts for taking air from outside into the building;
  Temperature monitoring means for monitoring the temperature inside the building;
  Control means for controlling both the exhaust device and the intake device based on the output from the temperature monitoring means,
  The air inlet device includes a first opening / closing part and a second opening / closing part having a larger area than the first opening / closing part,
  The control means executes the first mode when the temperature inside the building reaches the first temperature, and executes the second mode when the temperature reaches a second temperature higher than the first temperature. And
  In the first mode, the first opening / closing part of the intake device opens and the first fan of the exhaust device rotates,
  In the second mode, the second opening / closing part opens while the first opening / closing part of the intake device is open, and in addition to the first fan of the exhaust device, the first fan It is characterized in that a larger number of second fans rotate.

  Furthermore, the poultry house of the present invention is provided with the ventilator having the above-described configuration.

  According to the air intake apparatus of the present invention, the sizes of the opening and closing parts that perform the opening and closing operation to take in external air are different from each other and can be individually opened and closed, so that various levels of air intake can be performed. Therefore, a rapid change in the temperature inside the building is suppressed, and good ventilation is performed. Furthermore, when the present invention is applied to a breeding house, the mortality rate of livestock stored in the breeding house can be reduced.

  The ventilator according to the present invention includes a fan for releasing the air inside the building to the outside and an opening / closing part for taking air into the building, and the number of the opening and closing parts that operate according to the temperature inside the building. It is changing. Therefore, the level of ventilation can be changed according to the temperature inside the building, so that the temperature inside the building can be controlled more finely.

  Furthermore, according to the ventilator of the present invention, the inside of the building can be ventilated while keeping the speed of the outside air introduced from the inlet device at a certain level or higher. Therefore, it is possible to satisfactorily ventilate the inside of the building by the outside air introduced with a certain speed or more, and to adjust the temperature inside the building.

  The form of this invention is related with the inhalation | air-intake apparatus and ventilation apparatus which ventilate a building. In this embodiment, the building includes a breeding house such as a chicken house, a pig house, and a cow house in which livestock such as chickens, pigs, and cows are raised. By applying this embodiment to these breeding houses, effects such as a reduction in livestock mortality can be obtained. Furthermore, the building of this form includes a plastic house where plants are cultivated. By applying this embodiment to a greenhouse or the like, the growth state of the plant can be improved.

  Furthermore, in this embodiment, the air intake device is a device provided with an opening / closing portion that opens and closes to introduce outside air into the building. The ventilation device is a device composed of the intake device and an exhaust device (for example, a fan) that discharges air inside the building to the outside.

  In the following description of the present embodiment, the air inlet device and the ventilator will be described in detail by taking as an example a poultry house where chickens are raised.

  With reference to FIG. 1, the structure of the poultry house 10 equipped with the inhalation | air-intake apparatus and ventilation apparatus of this form is demonstrated. FIG. 1A is a perspective view showing an outline of the poultry house 10, and FIG. 1B is a plan view of the poultry house 10 as viewed from above.

  The size of the poultry house 10 is, for example, about short side × longitudinal direction = 8 m × 90 m. A doorway 14 is provided in front of the poultry house 10, and the size of the doorway 14 is such that a person, a cleaning machine, and the like can enter and exit. Furthermore, by opening the door 14, outside air can be taken in for ventilation of the poultry house 10 or temperature reduction inside the poultry house 10.

A plurality of fans 13 are provided on the rear surface of the poultry house 10. Here, two fans are arranged in the upper stage, and five fans are arranged in the lower stage. Actually, for example, three fans 13 are arranged in the upper stage, and seven fans 13 are arranged in the lower stage. The amount of air released from the inside of the poultry house 10 to the outside by one fan 13 is, for example, 300 m ³ / min.

  The inlet devices 11 </ b> A to 11 </ b> F are provided on the upper part of the side surface in the longitudinal direction of the poultry house 10, and have a function of introducing external air into the poultry house 10. Referring to FIG. 1B, three inlet devices 11A to 11C are installed on the left side surface, three inlet devices 11D to 11F are installed on the right side surface, and a total of six inlet devices are provided. It has been. Actually, for example, six intake devices are installed on the right side surface at substantially equal intervals, and seven intake devices are installed on the left side surface at substantially equal intervals. Details of the air intake device will be described later with reference to FIG.

  The longitudinal positions of the inlet devices 11A to 11C provided on the left side of the poultry house 10 are shifted from the longitudinal positions of the inlet devices 11D to 11F provided on the right side of the poultry house 10. That is, the air intake devices 11A to 11C and the air intake devices 11D to 11F are arranged in a staggered manner and are not arranged at the same position in the longitudinal direction. By arranging the intake devices in this manner, for example, the outside air W1 to W3 that has been introduced from the intake devices 11A to 11D located on the left side surface can reach the right side surface. Furthermore, the outside air W4 to W6 that has been introduced from the intake devices 11D to 11F provided on the right side surface can reach the left side surface. As a result, ventilation inside the poultry house 10 can be performed satisfactorily. On the other hand, for example, when the air inlet device 11A and the air inlet device 11D are arranged at the same position in the longitudinal direction of the poultry house 10, the outside air W1 that has entered the air from the air inlet device 11A enters the air inlet device 11D. It may collide with the outside air W4, and there is a possibility that ventilation inside the poultry house 10 is not sufficiently performed. Here, the positions in the longitudinal direction of the inlet devices 11A to 11C may be the same as the positions in the longitudinal direction of the inlet devices 11D to 11F.

  Inlet devices 11A to 11F are installed near the upper end of the side surface of poultry house 10 (at least above the center). By installing the intake devices 11A to 11F at such positions, the outside air that has been introduced from the intake devices 11A to 11F can reach the opposite side surface. Therefore, the air staying in the poultry house 10 and the outside air can be sufficiently stirred. Moreover, each inhalation | air_intake apparatus 11A-11F is installed in the substantially equivalent height.

  The intake devices 11A to 11F described above and the fan 13 operate in synchronization. That is, the air inside the poultry house 10 is released to the outside by the fan 13 due to ventilation and temperature drop inside the poultry house 10, and an amount of outside air corresponding to the released air is supplied from the intake devices 11A to 11F to the inside of the poultry house 10. Is inhaled. As a result, the temperature inside the poultry house 10 is kept below a certain level, and harmful gases such as carbon dioxide and nitrogen compounds are released to the outside of the poultry house 10. Details of this matter will be described later with reference to FIG.

  The control device 12 has a function of controlling the fan 13 and the air inlet device 11 </ b> A based on the temperature inside the poultry house 10. In this embodiment, the control device 12 is provided on the outer wall of the chicken house 10 in order to ensure the operability of the user (person who manages the chicken house 10).

  The drive devices 15 </ b> A and 15 </ b> B have a function of controlling the opening / closing operations of the intake devices 11 </ b> A to 11 </ b> F based on the output of the control device 12. Specifically, the driving devices 15A and 15B perform the closing operation or the opening operation of the intake devices 11A to 11F by winding or sending out the cable. A specific mechanism of the driving device 15A will be described later with reference to FIG. Here, the opening / closing operation of the intake devices 11A to 11C is performed by the driving device 15A provided on the left side surface. Furthermore, the opening / closing operations of the intake devices 11D to 11F are performed by the drive device 15B provided on the right side surface.

  In this embodiment, by providing the two driving devices 15A and 15B independently, even if one of the driving devices fails and stops, the opening / closing operation of the air intake device is performed by the other driving device. Therefore, it is possible to prevent an abnormal rise in the temperature inside the poultry house 10 due to the failure of the drive device. In addition, it is also possible to perform the opening / closing operation | movement of all the intake devices 11A-11F only with one drive device. However, in this case, there is a high risk that the air intake device stops due to a malfunction of the driving device, and ventilation inside the poultry house 10 is not performed at all.

  With reference to FIG. 2, the configuration of the above-described intake device 11 </ b> A will be described. FIG. 2 (A) is a perspective view showing the air inlet device 11A in a state where all the opening / closing parts 16A and the like are closed, and FIG. 2 (B) is an input in a state where only one opening / closing part 16A is opened. It is a perspective view which shows air | gas apparatus 11A.

  Referring to FIG. 2 (A), air inlet device 11A includes opening / closing portions 16A to 16C that are different in size and can be opened and closed. Here, two opening / closing parts 16A and 16B (first opening / closing part) having a small area are provided, and one opening / closing part 16C (second opening / closing part) having a large area is provided. Actually, two more opening / closing parts having a large area equivalent to the opening / closing part 16C are provided, and a total of five opening / closing parts are provided in one inhalation device 11A.

  The heights H1 of the open / close sections 16A to 16C are substantially the same, for example, about 20 cm (0.20 m). Furthermore, the width L1 of the opening / closing part 16A having a small area is, for example, 35 cm (0.35 m), and the width L2 of the opening / closing part 16B is also 35 cm like the opening / closing part 16A. The width L3 of the opening / closing part 16C is about twice that of the opening / closing part 16A, for example, 70 cm (0.70 m). Accordingly, the area of the opening / closing part 16C is about twice that of the opening / closing parts 16A and 16B.

  Each opening / closing part 16A to 16C is fixed to the outer frame 17 so as to be rotatable using a hinge or the like. Therefore, each opening / closing part 16A-16C is formed with an opening by rotating with the lower side as a fulcrum, and outside air can be taken into the poultry house from this opening. Moreover, each opening-and-closing part 16A-16C and the outer frame 17 are obtained by machining the metal plate of about 0.5 mm in which the antirust process was given, for example. Here, the opening / closing portion 16A and the like are also called a blade door or an opening / closing plate. Furthermore, as the opening / closing part 16A and the like, a sliding type that slides in the vertical direction (the direction of gravity) can be employed in addition to the rotary blade door.

  The configurations of the other inlet devices 11B to 11F shown in FIG. 1 are the same as those of the inlet device 11A described above.

  The opening / closing operation of each of the opening / closing sections 16A to 16C can be performed by winding or sending out the cable. Specifically, in the poultry house, main cables 18A to 18C are laid above the air inlet device 11A. Referring to FIG. 1A, the main cables 18 </ b> A to 18 </ b> C are laid from the driving devices 15 </ b> A and 15 </ b> B to the back end of the poultry house 10. Here, since the three opening / closing sections 16A to 16C are provided in one air inlet device 11A or the like, three main cables 18A to 18C are laid. The material of the main cable 18A or the like may be a so-called wire (wire), or may be one obtained by spinning thin metal fibers.

  Furthermore, the ends of the main cable 18A and the like are fixed to the poultry house via a spring. By doing so, even if the spring expands and contracts due to a temperature change or the like, the expansion and contraction can be absorbed by the spring. Therefore, disconnection due to contraction of the main cable 18A and bending due to expansion can be prevented. Furthermore, in this embodiment, even when the main cable 18A is sent out in order to perform the opening operation of the opening / closing portion 16A by using the spring as described above, the main cable 18A always has a tensile stress due to the contraction force of the spring. It is working. Accordingly, it is possible to prevent the main cable 18A from being bent by sending out the main cable 18A. If the main cable 18A bends, a problem occurs in which the main cables are entangled with each other.

  Furthermore, the main cables 18A to 18C are cables laid to open and close the opening / closing portions 16A to 16C of the respective inlet devices 11A and the like, and are provided on the left side surface of the poultry house 10 with reference to FIG. The opening / closing operations of the opening / closing portions 16A to 16C of the intake devices 11A to 11C are performed by the main cables 18A to 18C. Furthermore, the opening / closing operation | movement of the opening / closing parts 16A-16C of the inhalation | air_intake apparatus 11D-11F provided in the right side surface of the poultry house 10 is performed by the other main cables 18A-18C.

  The auxiliary cable 19A has one end connected to an intermediate position of the main cable 18A and the other end fixed to the vicinity of the upper end of the opening / closing part 16A. Further, the auxiliary cable 19A passes through the rotatable pulley 20A in the middle, and its winding direction is corrected to the rotation direction of the opening / closing part 16A. Further, the sub cables 19B and 19C also have one end connected to the middle of the main cables 18B and 18C and the other end fixed to the open / close portions 16B and 16C, similarly to the sub cable 19A. The sub cables 19B and 19C pass through the pulleys 20B and 20C on the way.

  In the figure, three main cables are laid corresponding to the three opening / closing sections provided in the inlet device 11A. However, if five opening / closing sections are provided in one inlet apparatus, five main cables are provided. A main cable is laid, and each main cable is connected to the opening / closing part via a sub cable.

  Referring to FIG. 2B, the opening / closing operation of the air inlet device 11A will be described. When the main cable 18A is sent out (moved leftward on the paper surface), the sub cable 19A also moves together, and as a result Then, the opening / closing part 16A rotates about the lower side as a fulcrum (rotates in the front direction on the paper surface). Accordingly, an opening 40 having an area equivalent to the area of the opening / closing part 16 </ b> A is formed, and the inside and the outside of the poultry house are in communication with each other, and outside air enters the poultry house through the opening 40. Further, when closing the opening / closing portion 16A, the main cable 18A is wound up (moved from the left to the right on the paper surface), the secondary cable 19A is also wound up, and the opening / closing portion 16A is moved in the reverse direction (on the paper surface). Rotate in the back direction. The other opening / closing sections 16B and 16C can perform the opening / closing operation on the same principle.

  In this embodiment, when the poultry house is ventilated, by adjusting the number of opening / closing parts 16A to be opened and the number of fans 13 to be operated, the poultry house 10 is opened from the opening 40 of the air inlet device 11A or the like. The speed of the outside air that enters is set to a certain level or more. Thereby, the inside of the poultry house 10 is well ventilated, and the mortality rate of the layer (chicken for egg collection) and broiler (chicken for meat) can be reduced.

  Referring to FIG. 1, for example, in the case of a poultry house 10 having a width in the short direction of 8 m, the wind speed of the outside air entering from each of the air inlet devices 11A provided on the side surface in the longitudinal direction is 5 m. / Second or more. By setting the wind speed of the outside air to be entered at 5 m / second or more, for example, the outside air that has entered from the inlet devices 11A to 11C provided on the left side surface can be spread to the right side surface. Furthermore, the outside air that has been introduced from the intake devices 11D to 11F provided on the right side surface can be distributed to the left side surface. As a result, fresh outside air is introduced over the entire area of the poultry house 10, the air staying inside and the outside air are well stirred, and the inside air can be kept clean.

  Here, the wind speed of 5 m / sec or more is a wind speed required when the width of the poultry house is 8 m. For example, when the width of the poultry house is 13 m, the wind speed of the outside air to be introduced is 7 m / sec. The above is considered necessary. That is, the wind speed of the outside air that enters the poultry house may be higher than the extent that the outside air that has entered from one side surface in the longitudinal direction reaches the other side surface.

  On the other hand, if the wind speed of the outside air entering from the inlet device 11A or the like is less than 5 m / sec, for example, the outside air entering from the inlet devices 11A to 11C does not reach the right side surface, and ventilation is good. There is a risk of not being done.

In this embodiment, in order to ensure the above-described wind speed, the size of the opening / closing part 16A provided in the intake device 11A or the like is set to a predetermined area. Thereby, the speed of the outside air that enters from the opening 40 formed by opening the opening / closing part 16A can be set to 5 m / second or more. Specifically, when one fan 13 is rotated for a small amount of ventilation and temperature drop, 300 m ³ / min (5 m ³ / sec) of air is released from the inside of the poultry house 10 to the outside. . Then, outside air is introduced into the poultry house according to the amount of air released.

  If the purpose is simply to lower the temperature inside the poultry house, only one large opening / closing part is provided in one inlet device 11A, etc., this opening / closing part is opened to form a large opening, and the outside air is introduced into the poultry house. I should do it. However, when the area of the opening is large, the outside air intake speed calculated by dividing the exhaust amount of the fan by the area of the opening is as slow as about 2 m / second, for example. If it becomes like this, the external air which inhaled from one side of the poultry house will not reach the other side, and the problem that ventilation inside the poultry house 10 is not performed sufficiently occurs.

Accordingly, in the present embodiment, the wind speed of the outside air that is introduced is set to a certain level or more by adjusting the area of the opening of the intake device. For example, let us consider a case where a total of 13 inlet devices are provided in one poultry house 10 and one fan 13 is activated. Here, the exhaust amount of the fan 13 is set to Xm ³ / sec, the total area of the opening portion opened by the opening operation of the air intake device is set to Ym ^2, and the wind speed of the outside air entering from this opening portion is set to Zm / sec. And Furthermore, it is assumed that the amount of air exhausted by the fan 13 is equal to the amount of outside air that is input from the intake device.

According to the above conditions, the wind speed Zm / sec at which the outside air enters the poultry house is obtained by dividing the exhaust amount Xm ³ / sec of the fan 13 by the total area Ym ² of the opening of the air intake device. That is, the equation Z = X / Y is established. Furthermore, in order to increase the wind speed Z to 5 m / second or more, it is necessary to establish an inequality of 5 ≦ X / Y. Further, the exhaust amount X of one fan 13 has a fixed value of 300 m ³ / min (5 m ³ / sec) as described above, and in general, the exhaust amount is not adjusted.

Therefore, in order to establish the inequality, it is necessary to adjust the area Y of the opening of the intake device to 1 m ² or less. Moreover, since this area Y is a total area required for one poultry house 10, for example, when 13 air intake devices are provided in one poultry house, the area of the opening of each air intake device is , Approximately 0.077 m ² . Therefore, when the height of the opening provided in the air intake device is 20 cm, the width of the opening is preferably about 35 cm or less. Referring to FIG. 2A, the size of the opening / closing portions 16A and 16B of the air inlet device 11A is vertical × horizontal = 20 cm × 35 cm. By setting the size of the opening / closing portion 16A of the intake device in this way, the wind speed of the outside air that is introduced from the opening 40 can be set to 5 m / second or more. As a result, the temperature inside the poultry house can be lowered while performing good ventilation.

  When the temperature inside the poultry house further rises, the exhaust amount of one fan 13 is insufficient, so that the other fan 13 operates to increase the exhaust amount. The exhaust amount of the fan 13 is almost the same. At the same time, referring to FIG. 2B, in addition to opening / closing portion 16A, opening / closing portion 16B is also opened. Therefore, since both the area of the opening 40 of the inlet device 11A and the exhaust amount of the fan are doubled, the wind speed of the outside air that is introduced from the opening 40 of the inlet device 11A is maintained at 5 m / second or more. I'm leaning.

  When the temperature inside the poultry house 10 further rises, two fans 13 are further started to operate a total of four fans 13. At the same time, the opening / closing portion 16C is further opened to ensure the wind speed of the incoming outside air is 5 m / sec or more. As described above, the opening / closing part 16C has twice the area of the opening / closing part 16A and the like, so even when two fans 13 are additionally activated, the opening / closing part 16C is opened. Can respond.

  Further, as described above, when the width of the poultry house 10 is about 13 m, for example, the width of each open / close section is about 5/7 in order to increase the wind speed of the outside air to be introduced to 7 m / second or more. To. That is, for example, the width L1 of the opening / closing part 16A is set to about 25 cm. If it does in this way, even if it is a large-sized poultry house, ventilation inside a poultry house can be performed favorably.

  Next, with reference to FIG.3 and FIG.4, the detail of the drive device 15A which manages opening / closing operation | movement of opening-and-closing parts 16A-16C, such as 11 A of inlet_air | air_intake apparatus, is demonstrated. In this embodiment, the opening and closing operations of the opening / closing sections 16A to 16C of the inlet device 11A and the like are performed by winding or sending out the main cables 18A to 18C with the driving device 15A. Here, a mechanism for operating the three main cables 18A to 18C is provided corresponding to the three opening / closing sections 16A to 16C provided in the air inlet device 11A and the like. Therefore, when five opening / closing sections are provided in one inlet device 11A or the like, a mechanism for operating the five main cables is provided in the driving device 15A. The configuration of the driving device 15B shown in FIG. 1 is the same as that of the driving device 15A.

  With reference to FIG. 3, first, the overall configuration of the driving device 15A will be described. FIG. 3A is a plan view showing the configuration of the driving device 15A, and FIG. 3B is a perspective view of the rotating portion 21A and the like as viewed from above.

  The driving device 15A is connected to the rotating units 21A to 21C for winding the main cables 18A to 18C, the rotating units 22A to 22C for winding the cables 23A to 23C, and the lower ends of the cables 23A to 23C. Stoppers 41A to 41C (moving bodies), contact plates 24A to 24C that detect the positions above the stoppers 41A to 41C, and contact plates 25A to 25C that detect the positions below the stoppers 41A to 41C. It is equipped with. The drive device 15A having such a configuration winds and sends out the main cables 18A to 18C within a predetermined range. As a result, the opening and closing portions 16A to 16C of the air intake device 11A and the like shown in FIG. Opening and closing operations can be performed appropriately.

  The rotating parts 21A to 21C have a function of winding or sending out the main cables 18A to 18C connected to the opening / closing parts 16A to 16C such as the air inlet device 11A. That is, when the rotating part 21A rotates clockwise, the main cable 18A is wound up, and the opening / closing part 16A shown in FIG. When the rotating portion 21A rotates counterclockwise, the main cable 18A is sent out, and the opening / closing portion 16A shown in FIG. 2A is opened. Such an operation is the same for the other rotating units 21B and 21C.

  Furthermore, the rotating parts 21A to 21C are arranged at different positions in the vertical direction. Specifically, the rotating part 21A is arranged at the lowest position, the rotating part 21B is located above the rotating part 21A, and the rotating part 21C is arranged at the highest position. In this way, by shifting the position in the height direction of each of the rotating parts 21A to 21C, it is possible to separate the main cables 18A to 18C and prevent the main cables from being entangled with each other.

  Each of the rotating portions 22A to 22C is provided integrally with the rotating portions 21A to 21C and rotates in synchronization, and has a function of winding and sending out the cables 23A to 23C. Here, the diameter (winding diameter) of the rotating portions 22A to 22C is substantially equal to the diameter (winding diameter) of the rotating portions 21A to 22C. By doing so, for example, the winding length of the main cable 18A and the winding length of the cable 23A are the same, and the opening angle of the opening / closing part 16A shown in FIG. 2 can be easily adjusted.

  Referring to FIG. 3 (B), rotating portion 21A and rotating portion 22A are formed so as to be integrally connected, and are installed on the surface of support plate 43 in a rotatable state. Further, a motor 42A (driving means) is provided on the back surface of the support plate 43, and the rotating portion 21A and the rotating portion 22A are rotated by the driving force of the motor 42A. As the motor 42A, a single-phase capacitor motor that is small and can provide a large driving force can be employed. The motor 42A is a reversible motor that can rotate clockwise or counterclockwise. This configuration is the same for a mechanism including other rotating parts.

  The stoppers 41A to 41C are connected to the cables 23A to 23C, and are raised and lowered in synchronization with the winding and feeding of the rotating portions 22A to 22C. In other words, the stoppers 41A to 41C are suspended by the cables 23A to 23C. The cables 23A to 23C are in a tensioned state by the dead weight of the stoppers 41A to 41C.

  Above the stoppers 41A to 41C, contact plates 24A to 24C for restricting the ascent are provided. The abutting plate 24A is provided with two abutting portions 26A and 27A at the lower end, and the abutting portions 26A and 27A abut on specific portions of the stopper 41A, so that the upper limit position of the stopper 41A is reached. Is stipulated. This mechanism will be described later with reference to FIG. 4, and the same applies to the other contact plates 24B and 24C. By limiting the upper limit positions of the stoppers 41A to 41C, disconnection of the main cable 18A due to excessive winding of the main cable 18A and damage to the air inlet device 11A can be prevented.

  Further, contact plates 25A to 25C are provided below the stoppers 41A to 41C to restrict the lowering thereof. Abutting portions 29A and 28B are provided at the upper end of the abutting plate 25A, and the lower limit position of the stopper 41A is defined by these portions coming into contact with specific portions of the stopper 41A. By restricting the lower limit positions of the stoppers 41A to 41C, excessive feeding of the main cable 18A is prevented, and as a result, bending of the main cable 18A and excessive opening of the opening / closing part 16A of the air inlet device 11A are prevented. Has been.

  The contact plates 24A to 24C and the contact plates 25A to 25C described above can be formed by machining a single metal plate.

  Next, the details of the stopper 41A will be described with reference to FIG. 4A is a plan view showing a part of the driving device 15A shown in FIG. 3A, and FIGS. 4B and 4C are cross-sectional views thereof.

  Referring to FIG. 4A, two contact portions 26A and 27A are provided at the lower end of the contact plate 24A located above the stopper 41A. The abutting portion 27A extends below the abutting portion 26A. The contact portion 26A is provided to stop the motor that drives the rotating portion 21A at a predetermined position when winding the main cable 18A in order to close the opening / closing portion of the intake device. . On the other hand, the contact portion 27A is provided as a spare in case the stopper 41A does not stop at the position of the contact portion 26A for some reason. That is, even if the stopper 41A continues to rise without stopping at the position of the contact portion 26A, the stopper 41A stops at the position of the contact portion 27A, and as a result, the winding of the motor and the rotating portion 21A also stops. Is done. Accordingly, disconnection or the like of the main cable 18A due to the rotating portion 21A winding the main cable 18A too much is prevented.

  In addition, contact portions 29A and 28A are provided on the upper end of the contact plate 25A located below the stopper 41A. The contact portion 29A is located above the contact portion 28B. The abutting portion 28A is provided to stop the motor that drives the rotating portion 21A at a predetermined position when the main cable 18A is sent out in order to open the opening / closing portion of the intake device. In addition, the contact portion 29A is provided as a spare, and if the stopper 41A continues to descend without stopping at the contact portion 28A due to some trouble, the stopper 41A stops at the position of the contact portion 29A. Is done. Therefore, the bending of the main cable 18A due to the rotating portion 21A sending out the main cable 18A too much is prevented.

  With reference to FIG. 4B, the configuration of the stopper 41A will be described. FIG. 4B is a cross-sectional view taken along line B-B ′ of FIG. First, the stopper 41A has a housing made of metal such as stainless steel, and an opening is provided by processing a part of the housing. And two contact parts 30A and 31A protrude outside from this opening part. The contact portions 30A and 31A are formed by bending a strip-shaped metal plate and have a mechanical strength that causes elastic deformation when contacting the contact plates 24A and 25A. In addition, an electronic component (for example, a relay) that generates an electrical signal based on deformation of the contact portions 30A and 31A is built in the stopper 41A.

  The operation until the stopper 41A is raised and stopped is as follows. First, the main cable 18A is wound up, and the motor 42A is driven to rotate the rotating part 21A in order to close the opening / closing part of the air intake device. At the same time, the cable 23A is also taken up by the rotating portion 22A, and the stopper 41A is raised. When the stopper 41A rises, the contact portion 30A eventually comes into contact with the contact portion 26A located at the lower end of the contact plate 24A, and the contact portion 30A is deformed and pushed into the stopper 41A. Such deformation of the contact portion 30A is converted into an electric signal by an electronic component built in the stopper 41A, and as a result, the motor 42A is stopped. And it stops in the state which the opening-and-closing part of the inhalation | air-intake apparatus was closed, and the raise of stopper 41A also stops.

  The operation until the stopper 41A descends and stops is as follows. First, in order to open the opening / closing part of the air intake device, the rotating part 21A is rotated by the motor 42A to send out the main cable 18A. At the same time, the rotating portion 22A also rotates to send out the cable 23A, and the stopper 41A descends. When the stopper 41A descends to the position of the contact plate 25A positioned below, the contact portion 31A built in the stopper 41A contacts the contact portion 28A positioned at the upper end of the contact plate 25A. When the contact portion 31A comes into contact with the contact portion 28A, the contact portion 31A is deformed and pushed inward. The deformation of the contact portion 31A is converted into an electric signal by an electronic component such as a relay built in the stopper 41A, and the motor 42A is stopped. As a result, the sending of the main cable 18A by the rotating part 21A is stopped, and the opening / closing part of the air intake device is opened at a predetermined angle. Further, the lowering of the stopper 41A also stops.

  Further, in this embodiment, as a countermeasure when a problem occurs in position detection by the contact portions 30A and 31B, a spare contact portion 32A is provided as shown in FIG. The configuration of the contact portion 32A is the same as that of the contact portion 30A described above, but the contact portion 32A is provided at a position different from the contact portion 30A or the like in the left-right direction. Here, the contact portion 32A is located above the contact portion 31A and below the contact portion 30A.

  The operation of the contact portion 32A is as follows. If the detection of the position by the contact portion 30A fails when the stopper 41A is raised, the stopper 41A further continues to rise. When the stopper 41A further rises, the contact portion 32A comes into contact with the contact portion 27A located below the contact portion 26A, and the contact portion 32A is pushed inward. The deformation of the contact portion 32A is converted into an electric signal by an electronic component such as a relay built in the stopper 41A, and the motor 42A is stopped. As a result, the winding of the main cable 18A by the rotating part 21A is stopped, and the raising of the stopper 41A is also stopped.

  The contact portion 32A also has a function of preventing the stopper 41A from being excessively lowered when position detection by the contact portion 31A does not function. That is, when the contact portion 31A does not function and the stopper 41A continues to descend, the contact portion 32A comes into contact with the contact portion 29A of the contact plate 25A, and the motor 42A is stopped.

  With the function of the spare contact portion 32A described above, the stopper 41A can be stopped at a predetermined location even when the contact portions 30A and 31A fail. As a result, excessive winding and delivery of the rotating portion 21A can be prevented.

  Further, the positions at which the contact plates 24A and 25A are fixed are movable in the vertical direction. Therefore, by moving the contact plate 24A in the vertical direction, it is possible to adjust the position where the rotating portion 21A finishes winding. Further, by moving the contact plate 25A in the vertical direction, it is possible to adjust the position where the rotating portion 21A finishes sending.

  Furthermore, in the above description, the contact plates 24A and 25A are fixed and the stopper 41A is moved in the vertical direction. However, it is also possible to fix the stopper 41A and move the contact plates 24A and 25A in the vertical direction. it can. In this case, the contact plates 24A and 25A are connected to the cable 23A and move in the vertical direction along with the winding and delivery of the main cable 18A.

  With reference to FIG. 5, the configuration of another form of drive device 15A will be described. FIG. 5A is a plan view of another form of drive device 15A, FIG. 5B is a perspective view of detection unit 47, and FIG. 5C is a cross-sectional view of drive device 15A. The drive device 15A shown in this figure is different from that shown in FIG. 3 in the mechanism for detecting the winding amount of the cable 23A and the like.

  Referring to FIG. 5A, the driving device 15A includes a rotating portion 22A to 22C that rotates with the winding of the main cables 18A to 18C, and a shaft that moves in the vertical direction as the rotating portions 22A to 22C rotate. 44A to 44C (moving body). Furthermore, a detection unit 47 that senses the amount of movement of the shafts 44A to 44C in the vertical direction and stops a motor (not shown) when the amount of movement exceeds a predetermined value is provided.

  In the drive device described with reference to FIG. 3, the stoppers 41 </ b> A to 41 </ b> C that detect displacement move in the vertical direction. However, in the drive device shown in FIG. 5, the position of the detection unit 47 having the same function is fixed. Yes.

  Further, in the detection unit 47, a mechanism that detects the amount of movement of the three shafts 44 </ b> A to 44 </ b> C in elevation is housed in one housing 50. Thereby, the structure of the detection part 47 can be simplified. Here, each mechanism may be housed in an individual casing 50. Further, the housing 50 is made of a metal such as stainless steel or a resin, and the inside can be sealed.

  In the detection unit 47, the shafts 48A to 48C protrude upward, and the upper end portions of these portions come into contact with the contact portions 45A to 45C of the shafts 44A to 44C, whereby the shafts 44A to 44C are displaced in the vertical direction. The quantity is detectable. Further, the lower ends of the shafts 48A to 48C protrude downward from the detection unit 47, and contact portions 46A to 46C fixed to the shafts 44A to 44C are in contact with these portions. Here, the amount of displacement in the vertical direction of the shafts 44A to 44C is equivalent to the amount of winding of the main cables 18A to 18C, and thus the degree of opening and closing of the opening / closing portions 16A to 16C shown in FIG.

  Referring to FIG. 5C, shaft 44A is made of a cylindrical metal material having a diameter of about 1 cm to 5 cm, and an upper end portion is connected to cable 23A wound around rotating portion 22A. Further, the shaft 44A is housed in a C-shaped steel or U-shaped steel (not shown) in order to restrict lateral movement. Further, the contact portions 45A and 46A are fixed at predetermined positions on the shaft 44A. The contact part 45A is located above the detection part 47, and the contact part 46A is located below the detection part 47. Further, at least a part of the abutting portions 45A and 46A extends to a position overlapping with the position of the shaft 48A of the detecting portion 47. With this configuration, the contact portions 45A and 46A can be brought into contact with the shaft 48A as the shaft 44A moves up and down. Here, the vertical positions of the contact portions 45A and 46A with respect to the shaft 44A can be adjusted. By performing this adjustment, the degree of opening / closing of the opening / closing part 16A shown in FIG. 2 can be adjusted.

  With reference to FIG. 5B, the internal configuration of the detection unit 47 will be described. Inside the detection part 47, a substantially cylindrical contact part 52A in which the shaft 48A penetrates in the axial direction is arranged. The contact portion 52A is made of a metal or resin that is turned so that the diameter of the intermediate portion is smaller than that of the upper and lower ends. In addition, the upper and lower ends of the portion processed to have a small diameter are inclined surfaces. Further, the contact portion 52A and the shaft 48A are fixed to each other by screws or the like.

  Inside the detection unit 47, a spring 51A is wound around a shaft 48A above the contact unit 52A. The upper end of the spring 51A is in contact with the inner wall of the housing 50, and the lower end thereof is in contact with the upper end of the contact portion 52A. Further, a spring 51B is wound around a portion below the contact portion 52A of the shaft 48A, and its upper end is in contact with the lower surface of the contact portion 52A and its lower end is in contact with the inner wall of the housing 50.

  Furthermore, an opening having a size into which the shaft 48A can be inserted is formed in the upper surface and the lower surface of the housing 50. The upper end of the shaft 48 </ b> A protrudes upward from an opening provided on the upper surface of the housing 50, and the lower end thereof protrudes downward from an opening provided on the lower surface of the housing 50.

  With the above configuration, the contact portion 52A can move in the vertical direction within the range of elastic deformation of the springs 51A and 51B.

  Furthermore, sensor units 49A, 49B, and 49C that detect the amount of vertical movement of the contact unit 52A are provided inside the housing 50 of the detection unit 47. The tip portions of these sensor portions are in contact with the side surface of the portion having a small diameter at the intermediate portion of the contact portion 52A.

  The part where the sensor part 49A contacts the side surface of the contact part 52A is above the sensor part 49B. Further, the part where the sensor unit 49C contacts the side surface of the contact part 52A is above the sensor part 49B and below the sensor part 49A.

  The sensor unit 49A has a function of stopping the lowering of the shaft 44A (that is, the opening operation of the opening / closing unit 16A in FIG. 2) at a predetermined position. The operation of the sensor unit 49A will be described. First, with the opening operation of the opening / closing unit 16A, the shaft 44A suspended from the cable 23A descends, and the contact unit 45A contacts the upper end of the shaft 48A. With this contact, the shaft 48A and the contact portion 52A integrated therewith are pushed downward. That is, the spring 51B that contacts the lower surface of the contact portion 52A contracts due to the weight of the shaft 44A, and as a result, the position of the contact portion 52A decreases. Then, the sensor part 49A moves to the right side in the drawing by the inclined side surface of the contact part 52A. The movement of the sensor unit 49A is detected by an electronic component such as a relay and stops the motor 42A. As a result, the lowering of the shaft 44A stops at a predetermined position, and further, the opening operation of the opening / closing portion 16A shown in FIG. 2 stops and the shaft 44A is opened at the predetermined position. Further, when the shaft 44A rises, the position of the contact portion 52A inside the housing 50 returns to the original position due to the repulsive force of the spring 51B.

  The sensor unit 49B has a function of stopping the ascent of the shaft 44A (closing operation of the opening / closing unit 16A in FIG. 2) at a predetermined position. As for the operation of the sensor unit 49B, first, when the shaft 44A rises with the closing operation of the opening / closing unit 16A, the contact unit 46A eventually comes into contact with the lower end of the shaft 48A. Further, when the shaft 44A continues to rise, the shaft 48A is pressed upward by the ascending contact portion 46A, the spring 51A is contracted inside the housing 50, and the contact portion 52A moves upward. At the same time, due to the inclined surface of the contact portion 52A, the sensor portion 49B moves to the right, and this movement is converted into an electrical signal, and the motor 42A stops. That is, the closing operation of the opening / closing part 16A is finished and the closed state is obtained.

  The sensor unit 49C is provided as a backup in the case where the motor 42A stoppage by the sensor units 49A and 48B fails. For example, if the sensor unit 49A fails to stop the lowering of the shaft 44A, the sensor unit 49C moves leftward in the drawing due to the inclined surface of the contact unit 52A, and the motor 42A is stopped. On the other hand, if the lifting and stopping of the shaft 44B by the sensor unit 49B fails, the sensor unit 49C is moved by the inclined surface of the contact unit 52A and the motor 42A is stopped. By providing the sensor unit 49C, it is possible to prevent malfunction of the driving device 15A due to malfunction of the sensor units 49A and 48B.

  Each component such as the shaft 48A described above is also provided for the other shafts 44B and 44C.

  Next, the configuration and the like of the control device 12 will be described with reference to FIG. FIG. 6A is an external view of the control device 12 attached to the outside of the side of the poultry house, and FIG. 6B is a plan view of the side of the poultry house 10 provided with a fan as viewed from the outside.

  Referring to FIG. 6A, the control device 12 has a waterproof casing and a semiconductor device (not shown) such as a relay or LSI built in a plastic casing, thereby realizing a predetermined function. It is wired so that.

  Further, on the surface of the control device 12, a first setting unit 33, a second setting unit 34, a third setting unit 35, switches 36A to 36J, and switches 37A to 37J are provided.

  The 1st setting part 33, the 2nd setting part 34, and the 3rd setting part 35 are parts which set the temperature which each fan starts or stops rotation. For example, the fans 13A to 13C are controlled by the first setting unit 33, the fans 13D to 13F are controlled by the second setting unit 34, and the fans 13G to 13J are controlled by the third setting unit 35. Here, as an example, the temperature of the first setting unit 33 is set to 30.0 ° C., the temperature of the second setting unit 34 is set to 31.0 ° C., and the temperature of the third setting unit 35 is 32.0 ° C. Is set to With such a configuration, for example, the fans 13A to 13C can be rotated and ventilated only when the temperature inside the poultry house 10 is 30.0 ° C. or higher. Moreover, when the temperature inside the poultry house 10 is less than 30.0 ° C., the fans 13A to 13C are stopped. Each set temperature can be set to a desired value by pressing an operation button provided in each setting unit.

  The temperature set by each setting unit is also the temperature at which the opening / closing unit of the intake device is opened / closed.

  The switches 36 </ b> A to 36 </ b> J are provided corresponding to the fans 13 </ b> A to 13 </ b> J, and can be switched to the A, B, and C modes. For example, when the switch 36A is switched to the position A, the fan 13A can be continuously rotated regardless of the temperature inside the poultry house 10. Further, when the switch 36A is switched to the position B, the fan 13A can be intermittently rotated (for example, operated every hour for every hour) regardless of the temperature inside the poultry house 10. Further, when the switch 36A is switched to the position C, the fan 13A is rotated only when the temperature inside the poultry house 10 is equal to or higher than the temperature set in the first setting unit 33 (here, 30.0 ° C.). Can do.

  In the present embodiment, the rotation of the fans 13A to 13C can be controlled on the basis of the set temperature of the first setting unit 33 by switching the switches 36A to 36C to the position C. Further, by switching the switches 36D to 36F to the position C, the rotation of the fans 13D to 13F can be controlled with the set temperature of the second setting unit 34 as a reference. Furthermore, by switching the switches 36G to 36J to the position C, the rotation of the fans 13G to 13J can be controlled on the basis of the set temperature of the third setting unit 35.

  The switches 37A to 37J are switches for controlling the on / off operation of the fans 13A to 13J. For example, the rotation of the fan 13A can be forcibly stopped by switching the switch 37A to “OFF”. When the switch 37A is switched to “ON”, the rotation of the fan 13A is controlled in the mode selected by the switch 36A.

  That is, the switches 36A to 36J and the switches 37A to 37J arranged in two stages in the upper and lower sides control the rotation of the fans 13A to 13J as one set. For example, when the fan 13A is continuously rotated, the switch 37A is set to “ON” and the switch 36A is set to “A”. When the fan 13A is rotated intermittently, the switch 37A is set to “ON” and the switch 36A is set to “B”. Furthermore, when rotating the fan 13A according to the temperature inside the poultry house 10, the switch 37A is set to “ON” and the switch 36A is set to “C”. In order to stop the fan 13A, the switch 37A may be set to “OFF”.

  In this embodiment, the fans 13A to 13J can be finely controlled according to the temperature inside the poultry house 10 by switching the switches. For example, a case where chicks are bred inside the poultry house 10 will be described as an example.

  First, the temperature of the 1st setting part 33, the 2nd setting part 34, and the 3rd setting part 35 is set to 30.0 degreeC, 31.0 degreeC, and 32.0 degreeC as above mentioned. Then, the upper switches 36A, 36D, 36G, and 36H are set to “C”. The lower switches 37A, 37D, 37G, and 37H are set to “ON”, and the other switches 37B, 37C, 37E, 37F, 37I, and 37J are set to “OFF”. Accordingly, when the temperature inside the poultry house reaches the temperature (first temperature) set by the first setting unit 33, only one fan 13A rotates. When the temperature inside the poultry house reaches the temperature set by the second setting unit 34 (second temperature), the fan 13D rotates in addition to the fan 13A. Further, when the temperature inside the poultry house reaches the temperature (third temperature) set by the third setting unit 35, the fans 13G and 13H rotate in addition to the fans 13A and 13D. Thus, the number of rotating fans can be increased as the inside of the poultry house 10 becomes higher. Further, in the present embodiment, the number of opening / closing portions that are opened by the intake device is increased in accordance with the number of rotating fans 13A (this matter has been described above with reference to FIG. 2B).

  Next, with reference to FIG. 7, the electrical configuration of the ventilator including the intake device of the present embodiment will be described. First, in the ventilator of this embodiment, individual control systems are configured according to the first setting unit 33, the second setting unit 34, and the third setting unit 35 described with reference to FIG. That is, the control device 12 includes three control units 39A to 39C and operates independently.

  The control unit 39A is a semiconductor device in which an LSI or the like having a predetermined function is packaged. Temperature information is input to the control unit 39A from a temperature sensor 38A (temperature monitoring means) that monitors the temperature inside the poultry house. Furthermore, information based on the temperature (first temperature) set by the first setting unit 33 is also input to the control unit 39A. Further, the control unit 39A outputs information for starting rotation of one fan 13 and the motor 42A based on the input information.

  Furthermore, the motor 42A starts rotating according to the output of the control unit 39A, and the opening operation or the closing operation of the opening / closing unit 16A of the intake device 11A is started. The movement of the opening / closing part 16A is monitored by the stopper 41A, and the rotation of the motor 42A is stopped by the output of the stopper 41A. That is, the control unit 39A controls the rotation of one fan 13 and the start of the opening / closing operation of one opening / closing unit 16A according to the temperature information of the temperature sensor 38A.

  The above-described configuration is the same in the other control units 39B and 39C.

  That is, the control unit 39B controls the rotation of one fan 13 based on the temperature information input from the temperature sensor 39B and the second setting unit 34. Further, the control unit 39B starts the rotation of the motor 42B, and as a result, controls the start of the opening / closing operation of one opening / closing unit 16B of the inlet device 11A. Further, the motor 41B is stopped by the stopper 41B that monitors the operation of the opening / closing part 16B, and the opening / closing operation of the opening / closing part 16B is stopped.

  Further, the control unit 39C controls the two fans 13 and the one large opening / closing unit 16C based on the temperature information input from the temperature sensor 38C and the third setting unit 35. Specifically, the control unit 39C starts the opening / closing operation of the large opening / closing unit 16C by rotating the two fans 13 and further rotating the motor 42C. The movement of the opening / closing part 16C is monitored by the stopper 41C, and the motor 42C is stopped by the output of the stopper 41C. As a result, the opening / closing operation of the opening / closing part 16C is stopped.

  In this embodiment, by preparing an individual temperature sensor for each control unit, even if one of the temperature sensors fails, the temperature inside the poultry house is monitored and ventilated by another temperature sensor that does not fail. Is called. Therefore, it is possible to prevent the entire apparatus from being stopped due to the failure of the temperature sensor. Moreover, in order to reduce capital investment and simplify the ventilation device, all the fans and the open / close units may be controlled by one temperature sensor and control unit.

  Next, based on the flowchart of FIG. 8, the operation of the intake device and the ventilation device of the present embodiment will be described with reference to FIG. 7.

  First, when the inlet device and the ventilator of this embodiment are operated (step S10), the temperature inside the poultry house is constantly monitored by the temperature sensor 38A and the like.

  In step S11, the control unit 39A compares the first temperature (eg, 30.0 ° C.) set by the first setting unit 33 with the temperature inside the poultry house. When the temperature inside the poultry house is lower than the first temperature (NO in step S11), the fan 13 does not rotate and the opening / closing part 16A such as the inlet device 11A is not opened. That is, there is no need to lower the temperature inside the poultry house, so ventilation for the purpose of lowering the temperature of the poultry house is not performed. Here, the fan may be operated manually when ventilation for releasing harmful gas staying inside the poultry house is required.

  When the temperature inside the poultry house is higher than the first temperature (YES in step S11), the first mode is executed in which the opening / closing part of the intake device is opened and the fan is rotated. In the first mode, for example, one fan 13 is rotated in step S13, and one opening / closing part 16A of the intake device 11A is opened in step S14. By executing this first mode, the air inside the poultry house is released to the outside by one rotating fan 13. Further, outside air having a wind speed of a certain level (for example, 5 m / sec or more) is introduced into the poultry house from the opening formed by opening the opening / closing part 16A.

  In step S15, the second temperature (for example, 31.0 ° C.) set by the second setting unit 34 is compared with the temperature inside the poultry house. And when the temperature inside a poultry house is lower than 2nd temperature (NO of step S15), it returns to step S11 and 1st mode is continued.

  On the other hand, when the temperature inside the poultry house is higher than the second temperature (YES in step S15), the second mode is executed. In the second mode, a larger number of fans are operated and a larger number of opening / closing sections are opened than in the first mode. Specifically, in the second mode, one more fan is operated, and two fans are rotated in total. Furthermore, in the second mode, the opening / closing part 16B is additionally opened, and the two opening / closing parts 16A and 16B are opened to form an opening. Accordingly, in the second mode, twice as many fans are operated and openings having twice the area are formed as compared with the first mode described above. Therefore, the wind speed of the outside air that enters from the opening of the inlet device 11A is kept above a certain level.

  Furthermore, in step S18, the third temperature (for example, 32.0 ° C.) set by the third setting unit 35 is compared with the temperature inside the poultry house. As a result, when the temperature inside the poultry house is lower than the third temperature (NO in step S18), the process returns to step S15 to execute the second mode. On the other hand, when the temperature inside the poultry house is higher than the third temperature (YES in step S18), the third mode is executed. That is, in order to lower the temperature inside the poultry house, two fans are further rotated to rotate a total of four fans. Further, the opening / closing part 16C having an area twice as large as the opening / closing part 16A is opened to further enlarge the opening. Even in the third mode, the wind speed of the outside air entering from the opening of the inlet device is maintained at a certain level or higher.

  Here, in the third mode, since a larger number of fans are operated and a larger number of opening / closing sections are opened than in the first mode, it can be understood that the third mode is a part of the second mode.

  In particular, when raising chicks inside the poultry house, the chicks are small in body and easily lose body temperature, and therefore, gas or the like is burned to keep the temperature inside the poultry house above a certain level. That is, the temperature inside the poultry house where the chicks are raised is kept within a certain range by the heating means using gas and the cooling means combining the fan and the opening / closing section. On the other hand, when raising grown chickens (adult birds), all (or many) fans provided in the poultry house are rotated in order to lower the body temperature of the adult birds, and the outside air is circulated along the longitudinal direction of the poultry house.

  By the operation of the air intake device and the ventilator described above, the air inside the poultry house can be kept at a certain level or less, and the air inside can be sufficiently agitated to provide good ventilation. Therefore, the mortality rate of chickens can be reduced.

Moreover, when the temperature inside a poultry house changes from high temperature to low temperature, the reverse step to the above is performed. That is, when the temperature inside the poultry house becomes lower than the third temperature, two of the four operating fans are stopped. At the same time, the opening / closing part 16C of the intake device 11A is closed to make the opening part small. Further, when the temperature inside the poultry house becomes lower than the second temperature, one of the two operating fans is stopped, and the opening / closing part 16B is closed. Furthermore, when the temperature inside the poultry house becomes lower than the first temperature, all the fans are stopped and all the opening / closing parts of the air inlet device 11A are closed.

It is a figure which shows the poultry house provided with the inhalation | air-intake apparatus and ventilation apparatus of this invention, (A) is a perspective view which shows the external appearance of a poultry house, (B) is the top view which looked at the poultry house from the upper direction. It is a figure which shows the inhalation | air_intake apparatus of this invention, (A) and (B) are perspective views. (A) is a perspective view which shows the drive part which controls the opening / closing operation | movement of the inhalation | air_intake apparatus of this invention, (B) is a perspective view of rotation part 21A etc. which are provided in a drive part. (A) is a top view of a drive part, (B) and (C) are sectional drawings of (A). (A) is a top view which shows the drive part of another form, (B) is a perspective view, (C) is sectional drawing. (A) is a top view which shows the control apparatus of this invention, (B) is the top view which looked at the side of the poultry house where a fan is provided from the outer side. It is a block diagram which shows the electric constitution of the control apparatus which controls the air intake apparatus etc. of this invention. It is a flowchart which shows operation | movement of the air intake apparatus and ventilation apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Chicken house 11A-11F Inlet apparatus 12 Control apparatus 13 Fan 14 Doorway 15A, 15B Drive apparatus 16A-16C Opening / closing part 17 Outer frame 18A-18C Main cable 19A-19C Sub cable 20A-20C Pulley 21A-21C Rotating part 22A-22C Rotating part 23A to 23C Cable 24A to 24C Contact plate 25A to 25C Contact plate 26A Contact part 27A Contact part 28A Contact part 29A Contact part 30A Contact part 31A Contact part 32A Contact part 33 First setting part 34 First 2 setting part 35 3rd setting part 36A-36J switch 37A-37J switch 38A-38C temperature sensor 39A-39C control part 40 opening part 41A-41C stopper 42A motor 43 support plate 44A-44C shaft 45A-45C contact part 46A- 46C Contact part 47 Inspection Protruding part 48A-48C Shaft 49A-49C Sensor part 50 Case 51A, 51B Spring 52A Contact part

Claims (10)

  A ventilation device provided in a building having a first lateral side and a second lateral side;
  An exhaust device provided on the first side surface and having a plurality of fans for releasing air inside the building to the outside;
  A plurality of air intake devices provided on the second side surface and having a plurality of opening and closing parts for taking air from outside into the building;
  Temperature monitoring means for monitoring the temperature inside the building;
  Control means for controlling both the exhaust device and the intake device based on the output from the temperature monitoring means,
  The air inlet device includes a first opening / closing part and a second opening / closing part having a larger area than the first opening / closing part,
  The control means executes the first mode when the temperature inside the building reaches the first temperature, and executes the second mode when the temperature reaches a second temperature higher than the first temperature. And
  In the first mode, the first opening / closing part of the intake device opens and the first fan of the exhaust device rotates,
  In the second mode, the second opening / closing part is opened while the first opening / closing part of the intake device is open, and in addition to the first fan of the exhaust device, the first fan A ventilator characterized in that a larger number of second fans rotate. The opening / closing part of the inhalation device is a plate-like opening / closing plate with one side fixed to be freely rotatable,
The ventilation apparatus according to claim 1, wherein the opening and closing plate rotates with the one side as a fulcrum so that the inside and the outside of the building communicate with each other. Cables are individually connected to the opening and closing parts of the air intake device ,
By winding or sending out the cable by the driving means,
The ventilation apparatus according to claim 1, wherein the opening / closing part is closed or opened. When the amount of air exhausted by the exhaust device is X (m ³ / sec), and the total area of the openings opened by the opening operation of the intake device is Y (m ² ),
5 (m / sec) ≦ X / Y
The ventilating apparatus according to claim 1, wherein the number of the fans to be operated and the number of the opening / closing parts to be opened are adjusted so that the relationship is established. The control means starts the opening / closing operation of the opening / closing part,
The ventilation apparatus according to claim 1, wherein the opening / closing operation of the opening / closing part is stopped by a moving body that moves in the vertical direction in synchronization with the opening / closing part.   2. The ventilation device according to claim 1, wherein each of the intake devices includes two of the first opening / closing portions and three of the second opening / closing portions.   The ventilator according to claim 1, wherein an area of the second opening / closing part is twice that of the first opening / closing part.   In the first mode, one of the first fans is operated,
  The ventilator according to claim 7, wherein in the second mode, the two second fans are operated while the first fan is operated.   The air intake device comprises a first air intake device and a second air intake device provided on each second side surface of the building facing each other,
  The ventilation device according to claim 1, wherein the first air inlet device and the second air inlet device are arranged in a staggered manner with respect to the longitudinal direction of the building.   A poultry house comprising the ventilation device according to claim 1.

Images