Chicken coop air conditioning system

Abstract

To provide a poultry house air conditioning system that makes a tunnel-shaped, windowless poultry house into a temperature environment that is suitable for the growth of chickens, and an environment that allows them to exercise their own body temperature control ability.SOLUTION: In a poultry house air conditioning system in a poultry house in which inlet air cooling means is provided on one end side of the poultry house and an exhaust fan is provided on the other end side of the poultry house, air conditioning sets are installed with a predetermined interval in a longitudinal direction of the poultry house, where the air conditioning set is formed by combining: a plurality of first blower fans arranged at a predetermined position in the longitudinal direction of the poultry house with a predetermined interval in a short direction of the poultry house; and an air conditioner that is arranged at a position near the first blower fan in the longitudinal direction of the poultry house and on the downstream side of the first blower fan, and blows downward air currents from a plurality of blowout ports arranged with a predetermined interval in the short direction of the poultry house.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a chicken coop air conditioning system for creating an environment in a tunnel-shaped and windowless chicken coop where chickens raised in a chicken raising cage do not die of heat stroke.

Background Art

[0002] For example, in a tunnel-shaped and windowless chicken coop about 80 m to 100 m long, the temperature inside the chicken coop is due to the body heat of chickens with a high breeding density in the chicken raising cage and the radiant heat generated when sunlight hits the roof and walls of the chicken coop. On a midsummer day when the outside air temperature exceeds 30°C, the temperature inside the chicken coop reaches 35°C or higher. And the temperature distribution inside the chicken coop is such that, compared with the ambient temperature on the intake side of the outside air at one end in the longitudinal direction of the chicken coop, the ambient temperature on the exhaust side of the internal air at the other end in the longitudinal direction of the chicken coop becomes quite high due to the body heat of the chickens and the radiant heat from the roof and the like. However, since chickens do not have sweat glands to release body heat, when the temperature inside the chicken coop exceeds 29°C, due to the high breeding density of the chickens in the chicken raising cage, it is difficult for the chickens themselves to release body heat, resulting in high body heat and heat stress, leading to heat stroke, and there is a problem that several hundred chickens die of heat stroke per chicken coop every year. Also, when heat stress occurs, even if it does not lead to heat stroke, there is also a problem that the eggshells become thin.

[0003] Therefore, in response to the above problems, Patent Document 1 discloses a plurality of chicken coop buildings that are long in the longitudinal direction and are partitioned into an air guiding chamber and a return duct chamber by partition plates along the longitudinal direction, a breeding block in which chicken raising cages for accommodating a large number of chickens are arranged side by side in the longitudinal direction along the air guiding chamber in the plurality of chicken coop buildings, one air conditioning device building connected to each end of the plurality of chicken coop buildings, sucking the return heat exchange air from the return duct chamber, exchanging heat, and blowing it into the air guiding chamber after converting it into temperature-controlled cold or warm heat exchange air, and a bent duct portion provided at each other end of the plurality of chicken coop buildings for guiding the heat exchange air from the air guiding chamber to the return duct chamber.

[0004] In addition, Patent Document 2 discloses a ventilation device for a tunnel chicken coop, which is provided with an outside air inlet for allowing outside air to flow into one gable side, side outside air inlets that are opened and closed by side opening and closing mechanisms on both sides, and an exhaust section equipped with a fan for discharging internal air on the other gable side. The side opening and closing mechanism is formed horizontally along the side outside air inlet with a panel material made of a material that bends under its own weight or static pressure, and includes a baffle whose lower edge is supported so that the upper end side swings, and a plurality of support wires provided above the baffle at predetermined intervals in the longitudinal direction thereof, and the upper edge side of the baffle is lifted and supported so that the baffle is in an inclined state. The lifting mechanism is configured such that when the main drive unit is driven, the tips of all the support wires are simultaneously lifted and lowered by the same distance, and when the auxiliary drive unit is driven, a difference is provided in the lifting and lowering distances of the tips of the support wires at a predetermined portion.

[0005] In addition, Patent Document 3 discloses a tunnel ventilation type chicken coop that takes in outside air from an air inlet provided on one gable of the chicken coop and discharges it to the outside by an exhaust fan attached to an exhaust port provided on the other gable. In the tunnel ventilation type chicken coop, the cage rows are arranged in the longitudinal direction of the chicken coop. In order to reduce the difference in the ambient temperature on the air inlet side and the ambient temperature on the exhaust port side in the tunnel ventilation type chicken coop, a mist device configured to spray fine mist having an average particle diameter of about 15 microns from the central portion in the longitudinal direction of the tunnel ventilation type chicken coop to the exhaust port side is provided along the cage rows above the cage rows.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0007] The invention of Patent Document 1 is configured such that cold air from one air conditioner flows into the first - floor portions of a plurality of chicken coops branched in a substantially "fishbone" shape in a perpendicular direction from a main header building extending linearly in front of the air conditioner, and then flows through a curved duct from near the end of the chicken - raising cage to the second floor and returns. However, since the path of the cold air is long and there are right - angle branch portions and 180° bend portions in the middle of the path, the flow velocity of the cold air decreases as it moves away from the air conditioner, and there is a problem that it is difficult for the cold air to flow to the end of the chicken coop building. Therefore, when a midsummer day with an outside air temperature exceeding 30°C continues, the temperature of the atmosphere inside the chicken coop rises as it goes downstream of the air flow due to the body temperature of the chickens and the radiant heat of the chicken coop, and there is a problem that many chickens die of heat stroke. Furthermore, since additional construction work on an existing chicken coop requires a large - scale project and high investment, it is difficult for chicken farmers to start additional construction work.

[0008] The invention of Patent Document 2 is a technology for making the temperature inside a tunnel chicken coop uniform. However, while the internal temperature rises due to the body temperature of the chickens, a side - part outside - air inflow part for allowing outside air to flow in on both sides or one side is provided, and the temperature is adjusted by the inflow amount of outside air. Even on a midsummer day when the outside air temperature exceeds 30°C due to global warming and the temperature inside the tunnel chicken coop is made uniform by taking in outside air, there is a problem that the temperature does not reach 25°C to 28°C, which is good for chicken growth, because the outside air temperature is 30°C or higher. Therefore, there is a problem that chickens die of heat stroke.

[0009] The invention of Patent Document 3 is to spray fine mist from the air - intake side to the exhaust side. However, since the air - flow means inside the chicken coop is only at one exhaust fan at the exhaust port, in the tunnel chicken coop, the air wind speed decreases as it moves away from the exhaust fan, and the downward spray air flow from above blocks the air flow. Therefore, almost no air flow toward the exhaust - port side occurs. For this reason, convection, which is one of the self - body - temperature - adjustment abilities of chickens, to let the air flow take away their own heat becomes difficult, and there is a problem that the body heat of chickens in a chicken - raising cage with a high breeding density rises easily.

[0010] The present invention was conceived in view of such problems, and an object thereof is to provide a chicken coop air conditioning system that makes the inside of a tunnel-shaped and traceless chicken coop into a temperature environment suitable for the growth of chickens and a wind speed environment in which the chickens can exert their own body temperature regulation ability.

Means for Solving the Problems

[0011] In the present invention, the wind force class is defined as the class of wind speed defined by the Japan Meteorological Agency and is displayed in the Beaufort wind force class table. For example, wind force class 2 has an equivalent wind speed of 1.6 to 3.3 m / s and is such that one can feel the wind on the face, the leaves of trees sway, and the weather vane starts to move. Wind force class 1 means that the equivalent wind speed is 0.3 to 1.5 m / s and the wind direction can be known from the way the smoke drifts, but one cannot feel it on the weather vane.

[0012] Also, in the present invention, the atmosphere temperature below which chickens are not caused heat stress means 28°C or lower. Therefore, in order to make the atmosphere temperature such that chickens are not caused heat stress, even on a midsummer day when the outside air temperature is 30°C, the atmosphere temperature inside the tunnel chicken coop must not be allowed to exceed 29°C.

[0013] Also, in the present invention, a chicken rearing cage is a place or structure where meat chickens such as broilers or egg-laying chickens can be reared, and means a place or structure where multi-tier chicken rearing or floor chicken rearing can be carried out.

[0014] The chicken coop air conditioning system according to claim 1 is a chicken coop air conditioning system in which an outside air intake is provided on one end side of the chicken coop, an exhaust port is provided on the other end side, and chicken raising cages are arranged in a row along the longitudinal direction of the chicken coop between the one end side and the other end side. An intake air cooling means and a second blower fan are provided in the outside air intake and the area in the vicinity thereof, an exhaust fan is provided in the exhaust port and the area in the vicinity thereof, and above the chicken raising cages arranged in a row between the second blower fan and the exhaust fan, at a predetermined position in the longitudinal direction of the chicken raising cages and at a predetermined interval in the transverse direction of the chicken raising cages, a first blower fan for generating an air flow toward the exhaust port side, and an air conditioner for blowing a downward air flow from a plurality of air outlets provided at a predetermined interval in the transverse direction of the chicken raising cages at a position in the longitudinal direction of the chicken raising cages closer to the exhaust port side than the first blower fan are combined, and the air conditioning sets are arranged at a predetermined interval in the longitudinal direction of the chicken coop.

[0015] The chicken coop air conditioning system according to claim 2 is, in claim 1, the predetermined arrangement position of the first blower fan in the transverse direction of the chicken raising cages is set as a range in which the air blown from the first blower fan can cover the entire transverse direction in the chicken coop, the predetermined arrangement position of the air outlets in the transverse direction of the chicken raising cages is set as the passages on both sides in the transverse direction of the chicken raising cages, the predetermined arrangement position of the air conditioning set in the longitudinal direction of the chicken raising cages is a range in which the wind speed of wind force class 2 of the air flow generated by either the second blower fan or the first blower fan can ensure a wind force of class 1 or more, and section and the ambient temperature in the chicken coop by either the intake air cooling means or the air conditioner is set as a range in which the ambient temperature that does not cause heat stress to the chickens can be made lower than the ambient temperature.

[0016] The chicken coop air conditioning system according to claim 3 is, in claim 1 or 2, characterized in that the first blower fan and the second blower fan are capable of forward and reverse rotation.

[0017] The chicken coop air conditioning system according to claim 4, in any one of claims 1 to 3, wherein the air conditioner takes in outside air from an outdoor unit disposed outside the chicken coop, an opening and closing means capable of opening and closing is provided at the air outlet, and the periphery of the air conditioner is surrounded by a housing made of a material having corrosion resistance to ammonia and acid in a sealed structure.

[0018] The chicken coop air conditioning system according to claim 5, in any one of claims 1 to 4, when the chicken coop is a two-story building and the chicken raising cages are arranged in rows on the first and second floors respectively, the floor material of the passage between the chicken raising cages on the second floor is a grating structure, and on the second floor, the intake air cooling means, the second blower fan, the air conditioning set, and the exhaust fan are installed, and on the first floor, the intake air cooling means, the second blower fan, the first blower fan, and the exhaust fan are installed.

[0019] The chicken coop air conditioning system according to claim 6, in any one of claims 1 to 5, wherein the intake air cooling means is a spraying device that sprays water in a mist form or a cooling pad.

Advantages of the Invention

[0020] The chicken coop air conditioning system according to claim 1 can make the atmosphere temperature in a tunnel-shaped and windowless chicken coop not cause heat stress to chickens even in midsummer, and enable the chickens being raised in the chicken raising cages to exert their body temperature regulation ability by convection. Thereby, it has the effect of preventing the chickens in the chicken raising cages from dying of heat in summer when midsummer continues.

[0021] The chicken coop air conditioning system according to claim 2 can efficiently install an air conditioning set combining the first blower fan and the air conditioner according to the size and form of a tunnel-shaped and windowless chicken coop, and can suppress the equipment investment amount.

[0022] The chicken coop air conditioning system according to claim 3 uses the first blower fan and the second blower fan, and chicken feathers adhere to the surface of the fans. However, since the first blower fan and the second blower fan can rotate in the reverse direction, the feathers adhering to the fans can be peeled off by this reverse rotation. Thereby, the air volume of the first blower fan or the second blower fan can be maintained.

[0023] The chicken coop air conditioning system according to claim 4 takes in outside air, so there is no adhesion of feathers floating in the intake air and no corrosion caused by ammonia or acid derived from chickens. Since an opening / closing means for opening and closing the opening of the air outlet at the tip of the duct of the air conditioner is provided, it prevents the intrusion of feathers floating in the air when the air conditioner is stopped and makes it less likely to break down. Since the periphery of the air conditioner is surrounded by a housing made of a material having corrosion resistance to ammonia and acid in a sealed structure, the outer wall of the air conditioner is less likely to corrode, which has the effect of making it less likely to corrode.

[0024] The chicken coop air conditioning system according to claim 5 can maintain the ambient temperature in the chicken coop cage at a temperature at which chickens do not experience heat stress and can create an environment in which chickens being raised in the chicken coop cage can exert their body temperature regulation ability by convection, even when a two-story chicken raising cage is installed in one chicken coop. Thereby, it has the effect of preventing the chickens in the chicken raising cage from dying of heat during the summer with continuous midsummer days.

[0025] The intake air cooling means arranged at the outside air intake on the intake side at one end of the chicken coop in the chicken coop air conditioning system according to claim 6 may be the generally used intake air cooling means. Therefore, it can be applied to both existing tunnel-shaped and windowless chicken coops and newly constructed tunnel-shaped and windowless chicken coops, which has the effect of being applicable.

Brief Description of the Drawings

[0026]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Embodiments for Carrying Out the Invention

[0027] As shown in FIGS. 10 and 11, the existing tunnel-shaped and windowless chicken coop 10 is configured such that intake air cooling means 7 is disposed at the outside air intake opening on one end side M of the chicken coop 10, and an exhaust fan 8 is provided near the exhaust opening on the other end side N. For example, in the case of a tunnel-shaped and windowless chicken coop where only the intake air cooling means 7 on one end side M and the exhaust fan 8 on the other end side N are installed, and the width is about 12 m and the length is about 100 m, as shown in FIG. 11, on a midsummer day when the outside air temperature is 25° C. or on a sweltering midsummer day when the outside air temperature is 30° C., even if the atmosphere temperature in the range H1 near the entrance on one end side M is cooled to 22° C. to 23° C. by the intake air cooling means 7, due to the body heat of the chickens densely bred in the chicken raising cages 20 and the radiant heat from the roof and the like, the atmosphere temperature in the range H2 near the exhaust opening on the other end side N rises to 34° C. to 35° C., and heat death of the chickens bred in the chicken raising cages 20a to 20d arranged in the first-floor chicken raising cages 20B and the second-floor chicken raising cages 20A occurs.

[0028] The chicken coop air conditioning system 1 of the present invention can be applied to any form of chicken coop 10 as long as it is a chicken coop 10. Preferably, as shown in FIGS. 1 to 6, it is a tunnel-shaped and windowless chicken coop 10, and it is a chicken coop air conditioning system 1 for making the environment in the tunnel-shaped and windowless chicken coop 10 such that the chickens bred in the chicken raising cages 20 do not die of heat, and it is a chicken coop air conditioning system 1 that can be installed in a newly constructed chicken coop 10 or an existing chicken coop 10.

[0029] And the chicken coop air conditioning system 1 of the present invention is a tunnel-shaped and windowless chicken coop 10. For example, when the width is about 12 m and the length is about 100 m, as shown in FIG. 1, even on a sweltering midsummer day when the outside air temperature exceeds 30° C., the atmosphere temperature in the range H1 on one end side M near the outside air intake opening can be cooled to 22° C. to 23° C., the atmosphere temperature in the range H2 near the other end side N can be cooled to 28° C. or lower, the atmosphere temperature between the one end side M and the other end side N can be made 28° C. or lower, and further, an environment with a wind speed capable of exerting the body temperature adjustment ability by convection for chickens that do not have sweat glands to release body heat is realized throughout the entire area between the one end side M and the other end side N, and it is a system that does not cause heat death of chickens.

[0030] As shown in FIGS. 1 to 6, the chicken coop air-conditioning system 1 of the present invention is provided with an outside air intake port on one end side M of the chicken coop 10 and an exhaust port on the other end side N, and between the one end side M and the other end side N, chicken-raising cages 20 (20a to 20d) are arranged in a row along the longitudinal direction of the chicken coop 10. The chicken coop air-conditioning system 1 in the chicken coop 10 is provided with intake cooling means 7 and a second blower fan 13 in the outside air intake port and the area in the vicinity thereof, and an exhaust fan 8 is provided in the exhaust port and the area in the vicinity thereof. Above the chicken-raising cages 20 (20a to 20d) arranged in a row between the second blower fan 13 and the exhaust fan 8, at a predetermined position in the longitudinal direction of the chicken-raising cages 20 (20a to 20d) and at a predetermined interval in the lateral direction of the chicken-raising cages 20 (20a to 20d), a first blower fan 3 (3a to 3d) for generating an air flow toward the exhaust port side is provided, and an air conditioner 4 (4a, 4b) for blowing a downward air flow from a plurality of air outlets 6 (6a, 6b) provided at a predetermined interval in the lateral direction of the chicken-raising cages 20 (20a to 20d) at a position in the longitudinal direction of the chicken-raising cages 20 (20a to 20d) closer to the exhaust port side than the first blower fan 3. An air-conditioning set 2 (2a, 2b) combining these is arranged at a predetermined interval in the longitudinal direction of the chicken coop 10.

[0031] As shown in FIGS. 1 to 6, the chicken coop 10 into which the chicken coop air-conditioning system 1 of the present invention is introduced has an outside air intake port on one end side M of the chicken coop 10 and an exhaust port on the other end side N, and there are four rows of chicken-raising cages 20a to 20d arranged in a row between the one end side M and the other end side N, such as shown in FIG. 1 or FIG. 2. It is a tunnel-shaped and windowless chicken coop 10. And in the tunnel-shaped and windowless chicken coop 10, there is a single-story structure as shown in FIG. 5, or a two-story structure as shown in FIG. 3. When the chicken coop 10 is single-story, the chicken-raising cages 20 (20a to 20d) are only on the first floor. When the chicken coop 10 is two-story, there are chicken-raising cages 20A (20a to 20d) provided on the second floor and chicken-raising cages 20B (20a to 20d) provided on the first floor. Note that the number of rows of chicken-raising cages is exemplified as four rows in FIG. 1, but it may be any number of rows such as one row, two rows, three rows, four rows, five rows, or six rows.

[0032] First, the intake air cooling means 7, which is an air conditioning means on one end side M of the chicken coop 10, and the second blower fan 13 will be described. The intake air cooling means 7 disposed in the outside air intake port on the one end side M and the area in the vicinity thereof is a spraying device (not shown) or a cooling pad (not shown) that sprays water in a mist form. Both use water in a harmless and safe way to cool the outside air. And, as shown in FIG. 2, a plurality of the second blower fans 13 are installed as an example, and cool air is blown toward the chicken raising cages 20 (20a to 20d) at a wind speed of wind force class 2.

[0033] Next, the exhaust fan 8 will be described. As shown in FIG. 2, a plurality of the exhaust fans 8 are installed as an example in the exhaust port on the other end side N and the area in the vicinity thereof, and discharge the air whose temperature has risen in the chicken coop 10 to the outside. The wind speed of the air in the vicinity of the other end side N can be set by this exhaust fan 8, and the air flow in the chicken coop 10 is guided to the exhaust port side of the other end side N.

[0034] Next, the air conditioning set 2 will be described. In FIGS. 1 to 7, the air conditioning sets 2a and 2b are disposed at a predetermined position in the longitudinal direction of the chicken raising cages 20 (20a to 20d) with a predetermined interval in the short direction of the chicken raising cages 20 (20a to 20d), and a first blower fan 3 (3a to 3d) that generates an air flow toward the exhaust port side, and in the longitudinal direction of the chicken raising cages 20 (20a to 20d), in the vicinity of a position closer to the exhaust port side than the first blower fan 3 (3a to 3d), it is a combination with an air conditioner 4 (4a, 4b) that blows a downward air flow from a plurality of air outlets 6 (6a, 6b) provided at a predetermined interval in the short direction of the chicken raising cages 20 (20a to 20d).

[0035] As a comparative example, when the first blower fan 3 is not installed, only the wind speed and air volume of the cold air blown out from the air conditioner 4 are insufficient to send the cold air in a tunnel-like and draft-free manner to the other end side N, which is the exhaust port side of the chicken coop 10, and the cold air does not flow far. Therefore, temperature unevenness occurs in the ambient temperature in the tunnel-like and draft-free chicken coop 10, and furthermore, since the air flow in the tunnel-like and draft-free chicken coop 10 is too weak, the chicken cannot exert its body temperature adjustment ability by convection.

[0036] In order to eliminate these problems and make the ambient temperature and wind speed between one end side M and the other end side N in the longitudinal direction of the tunnel-shaped and windowless chicken coop 10 suitable for chicken breeding, a first blower fan 3 (3a to 3d) is installed on one end side M of the chicken coop 10 of the air conditioners 4a and 4b, and it was conceived to constitute air conditioning sets 2a and 2b with the air conditioners 4a and 4b and the first blower fan 3 (3a to 3d) as components.

[0037] The air conditioners 4a and 4b are installed at a height near the ceiling of the chicken coop 10, and the ducts 5a and 5b extending from the air conditioners 4a and 4b branch into a plurality of parts, and the air outlets 6a and 6b at the branched tip parts are respectively suspended on the passages on both sides of the chicken raising cages 20a to 20d. For example, as shown in FIG. 1, when the chicken raising cages 20a to 20d are in four rows, they are suspended at five places in the passages on both sides.

[0038] However, in the region of the chicken raising cages 20a to 20d in the tunnel-shaped and windowless chicken coop 10, the feathers of the chickens float due to the blowing, and the moisture in the air contains ammonia components due to the chicken manure. Therefore, the wind speed of the blowing decreases due to the feathers adhering to the first blower fan 3 (3a to 3d), feathers enter from the air outlets 6a and 6b at the tips of the ducts 5a and 5b and adhere to the inner walls of the ducts 5a and 5b, resulting in a decrease in the cold air volume and wind speed, and corrosion of the metal casings of the air conditioners 4a and 4b. If these problems cannot be solved, the air conditioning sets 2a and 2b cannot be installed in the region of the chicken raising cages 2 (20a to 20d).

[0039] Therefore, the air conditioners 4 (4a, 4b) are surrounded by a housing made of a material having corrosion resistance to ammonia and acid in a sealed structure, thereby preventing the outer walls of the air conditioners 4 (4a, 4b) from corroding. Further, an opening / closing means (not shown) that can open and close to block the flow of air from the air outlet 6 (6a, 6b), which is the opening at the tip of the duct 5 (5a, 5b) extending from the air conditioner 4 (4a, 4b), is provided to prevent feathers, ammonia, and acid molecules from flowing into the air outlet 6 (6a, 6b) when the air conditioner 4 stops, thereby preventing malfunctions of the air conditioners 4 (4a, 4b). In addition, the air conditioners 4a, 4b take in outside air from the outdoor units 11a, 11b disposed outside the chicken coop 10, so as not to inhale the air containing feathers, ammonia, and acid molecules floating in the tunnel chicken coop 10, making it less likely for malfunctions to occur.

[0040] The opening / closing means may be any opening / closing means that can shield the opening of the air outlet 6 (6a, 6b) at the tip of the duct 5 (5a, 5b). For example, a structure that rotates or slides a lid that covers the opening with an air cylinder or a motor, or the lid may be manually opened and closed. The operation method of the opening / closing means that rotates or slides, for example, is a method of operating with an operation button provided on the operation panel of the air conditioner 4 (4a, 4b).

[0041] In addition, the first blower fans 3 (3a to 3d) and the second blower fan 13 are made to be blower fans that can rotate forward and backward. The first blower fans 3 (3a to 3d) or the second blower fan 13 are occasionally rotated in the reverse direction to remove the feathers stuck to the blades of the first blower fans 3 (3a to 3d) or the second blower fan 13. Thereby, the feathers stuck to the blades of the first blower fans 3 (3a to 3d) or the second blower fan 13 can be removed and the wind speed and air volume can be maintained.

[0042] By adopting the above configuration, it becomes possible to install the air conditioners 4 (4a, 4b) with the first blower fans 3 (3a to 3d) and the ducts 5 (5a, 5b) extended in the area of the chicken raising cages 20 (20a to 20d).

[0043] The air conditioning sets 2a and 2b are installed above the chicken raising cages 20 (20a to 20d) and installed at predetermined installation positions in the longitudinal direction of the chicken house 10. The predetermined installation positions of the air conditioning sets 2a and 2b in the longitudinal direction of the chicken raising cages 20 (20a to 20d) are each within a range where the wind speed of wind force class 2 generated by either the second blower fan 13 or the first blower fan 3 can ensure a wind force of class 1 or more, and the ambient temperature in the chicken house 10 by either the intake air cooling means 7 or the air conditioners 4a and 4b can be set to be equal to or lower than the ambient temperature that does not cause heat stress to the chickens. Note that the first blower fans 3 (3a to 3d) and the second blower fan 13 are installed to be able to output the same wind speed and air volume.

[0044] As an example, in the case of a tunnel-shaped and windless chicken house 10 with a width of about 12 m and a length of about 100 m, if the air conditioning sets 2a and 2b are installed at intervals of about 33 m, on a midsummer day with an outside air temperature of 30°C or higher, the ambient temperature in the tunnel-shaped and windless chicken house 10 can be cooled to 22°C to 23°C near one end side M, and as shown in FIG. 1 or FIG. 3, it can be cooled to 28°C or lower near the other end side N due to the cooling effect of the air conditioning sets 2a and 2b. In any case, the installation interval of the air conditioning sets 2a and 2b is set based on the information on the wind speed and ambient temperature of the air flow obtained from the width and length of the tunnel-shaped and windless chicken house 10.

[0045] Also, as shown in FIG. 7 or FIG. 8, the first blower fans 3 (3a to 3d) are fans that generate airflows in the directions U2a, U2b, U3a, and U3b toward the exhaust port side, and are fans that recover the reduced wind speed and air volume of the air flow generated by the second blower fan 13 near one end side M. Then, as shown in FIG. 1 or FIG. 2, the first blower fans 3 (3a to 3d) are arranged at predetermined intervals in the short-side direction of the chicken raising cages 20 (20a to 20d).

[0046] The first air supply fan 3 (3a to 3d) has the ability to supply air at a wind speed corresponding to wind force class 2. The predetermined installation positions in the short side direction of the poultry cages 20 (20a to 20d) are set such that the air supply from the first air supply fan 3 (3a to 3d) can cover the entire short side area within the chicken coop 10. The interval in the longitudinal direction of the tunnel chicken coop 10 between the first air supply fans 3 (3a to 3d) is set to an interval within which the wind speed of the air supply at the wind speed corresponding to wind force class 2 generated by the second air supply fan 13 and the first air supply fans 3 (3a to 3d) can ensure a wind speed of wind force class 1 or higher, and this interval reflects the interval between the air conditioning sets 2a and 2b. Note that, as shown in FIG. 7, the second air supply fan 13 is a fan that has a wind speed corresponding to wind force class 2 and generates an air flow in the direction U1 toward the exhaust port side, similar to the first air supply fans 3 (3a to 3d).

[0047] When the tunnel-shaped and windowless chicken coop 10 is single-story, as shown in FIG. 5, the first air supply fans 3a and 3b are installed above the poultry cages 20 (20a to 20d) on the first floor. When the tunnel-shaped and windowless chicken coop 10 is two-story, as shown in FIGS. 3, 4, or 6, the first air supply fans 3c and 3d are installed above the poultry cages 20B (20a to 20d) on the first floor, and the first air supply fans 3a and 3b are installed above the poultry cages 20A (20a to 20d) on the second floor, respectively. In the case of a two-story chicken coop, the first air supply fans 3 (3a, 3b) installed on the first floor and the first air supply fans 3 (3c, 3d) installed on the second floor are installed at substantially the same positions in plan view.

[0048] Further, when the tunnel-shaped and traceless chicken coop 10 is single-story, as shown in FIGS. 1 and 5, the second blower fan 13 is installed near the indoor side of the intake air cooling means 7 installed in the outside air intake port on one end side M and the area in the vicinity thereof, and is on the longitudinal extension line between the chicken raising cages 20 (20a to 20d) on the first floor, and is disposed at substantially the same height as the height above the chicken raising cages 20 (20a to 20d). When the tunnel-shaped and traceless chicken coop 10 is two-story, as shown in FIGS. 1 to 3, it is disposed on the longitudinal extension line between the chicken raising cages 20B (20a to 20d) on the first floor at substantially the same height as the height above the chicken raising cages 20 (20a to 20d), and is disposed on the longitudinal extension line between the chicken raising cages 20A (20a to 20d) on the second floor at substantially the same height as the height above the chicken raising cages 20 (20a to 20d). In the case of a two-story building, the second blower fans 13 installed on the first floor and the second floor are installed at substantially the same positions in plan view.

[0049] Next, as shown in FIG. 1 or FIG. 4, air conditioners 4a and 4b having the ability to make the ambient temperature of the chicken raising cages 20 (20a to 20d) in the vicinity of the installation location 22°C to 23°C or lower are installed. The installation positions of the air conditioners 4a and 4b are in the vicinity of the first blower fans 3 (3a to 3d) in the longitudinal direction of the chicken raising cages 20 (20a to 20d) and on the downstream side of the air flow from the first blower fans 3 (3a to 3d), and are installed near the ceiling of the chicken coop 10.

[0050] The predetermined installation positions of the air conditioners 4a and 4b in the longitudinal direction of the chicken raising cages 20 (20a to 20d) are set in a range where the ambient temperature in the chicken coop 10 by either the intake air cooling means 7 or the air conditioners 4a and 4b can be made not to cause heat stress to the chickens.

[0051] The air conditioners 4a and 4b are connected to ducts 5a and 5b that deliver cold air. The ducts 5a and 5b are branched so as to be suspended at a predetermined interval in the short direction of the poultry cages 20 (20a to 20d), that is, on all the passageways between the respective poultry cages 20 (20a to 20d). By suspending the outlets 6a and 6b of the ducts 5a and 5b on the passageways on both sides of all the poultry cages 20 (20a to 20d), the difference in ambient temperature within the poultry cages 20 (20a to 20d) can be eliminated, and the ambient temperature and the wind speed of the air flow that do not cause heat stress to all the chickens within each of the poultry cages 20 (20a to 20d) can be felt.

[0052] Next, in the case where the chicken coop 10 has two floors and the poultry cages 20 (20a to 20d) are arranged in rows on the first and second floors respectively, as shown in FIGS. 4, 7, or 8, the floor material 15 of the passageway between the poultry cages 20 (20a to 20d) on the second floor is made into a grating structure 9. On the second floor, the intake air cooling means 7, the second blower fan 13, the air conditioning set 4, and the exhaust fan 8 are installed. On the first floor, the intake air cooling means 7, the second blower fan 13, the first blower fan 3, and the exhaust fan 9 are installed. A plurality of first blower fans 3c and 3d are installed on the first floor at substantially the same position as the first blower fans 3a and 3b installed on the second floor in the longitudinal and short directions of the chicken coop 10, and at a height near the lower surface of the grating structure 9 in the vertical direction.

[0053] By making the floor material 15 of the passageway between the poultry cages 20 (20a to 20d) on the second floor into a grating structure 9, as shown in FIGS. 7 or 8, the flow of cold air from the air conditioners 4a and 4b installed on the second floor can be made in the directions U2a and U3a, so that the ambient temperature and wind speed in the area of the poultry cages 20 (20a to 20d) on the second floor can be made such that no heat stress is caused to the chickens. Also, the flow of cold air can be made in the directions U2b and U3b toward the first floor through the holes of the grating structure 9 and can be made to flow down to the poultry cages 20 (20a to 20d) on the first floor, so that the ambient temperature and wind speed in the area of the poultry cages 20 (20a to 20d) on the first floor can be made such that no heat stress is caused to the chickens.

[0054] By making it unnecessary to install the air conditioner 4 on the first floor, it is possible to reduce the installation cost and the maintenance cost of the air conditioning of the chicken coop air conditioning system 1 of the present invention. Therefore, this has the effect that it becomes easier for poultry farmers to install the chicken coop air conditioning system 1 of the present invention in a two-story tunnel-shaped and windowless chicken coop 10 at low cost.

[0055] The operation of the chicken coop air conditioning system 1 of the present invention will be described. When the tunnel-shaped and windowless chicken coop 10 is a single-story building, as shown in FIG. 9, the outside air cooled to, for example, 22°C to 23°C by the intake air cooling means 7 is blown by the second blower fan 13 in the direction U1 where the poultry cages 20 (20a to 20d) are located at a wind speed of wind force class 2. In the area of the poultry cages 20 (20a to 20d), the ambient temperature gradually rises due to the body temperature of the chickens and the radiant heat from the outer wall of the chicken coop 10, and the wind speed also gradually decreases as it hits structures such as the poultry cages 20 (20a to 20d) and decreases to wind force class 1. However, the air conditioning set 2a installed within a range where the ambient temperature does not cause heat stress to the chickens and the wind speed does not reach a level where the chickens cannot self-regulate their body temperature by convection of their body temperature to the air blows the outside air newly cooled to 22°C to 23°C from the air conditioner 4a by the first blower fan 3a in the direction U2 toward the other end side N side at a wind speed of wind force class 2 to restore the ambient temperature to 22°C to 23°C and the wind speed to wind force class 2 again. By such a mechanism, it is possible to make the environment inside the tunnel-shaped and windowless chicken coop 10 an environment where the chickens are not heat-killed even on a midsummer day with a temperature of 30°C or higher.

[0056] Even when the tunnel-shaped and windowless chicken coop 10 is a two-story building, as shown in FIG. 7 or FIG. 8, the chicken coop air conditioning system 1 can make the environment inside the tunnel-shaped and windowless chicken coop 10 an environment where the chickens are not heat-killed even on a midsummer day, in the same manner as in the case of a single-story building.

Explanation of Reference Numerals

[0057] 1 Chicken coop air conditioning system 2 Air conditioning set 3 First blower fan 4 Air conditioner 5 Duct 6 Air outlet 7 Inlet air cooling means 8 Exhaust fan 9 Grating structure 10 Chicken coop 11 Outdoor unit 13 Second blower fan 15 Floor material 20 Chicken raising cage H Range M One end side N The other end side U Direction

Claims

1. A chicken coop air conditioning system in which an outside air intake is provided at one end side of a chicken coop, an exhaust port is provided at the other end side, and chicken raising cages are arranged in a row along the longitudinal direction of the chicken coop between the one end side and the other end side, an intake air cooling means and a second blower fan are provided in the outside air intake and the area in the vicinity thereof, and an exhaust fan is provided in the exhaust port and the area in the vicinity thereof, above the chicken raising cages arranged in a row between the second blower fan and the exhaust fan, a first blower fan that generates an air flow toward the exhaust port side, which is arranged at a predetermined position in the longitudinal direction of the chicken raising cage and at a predetermined interval in the lateral direction of the chicken raising cage, and an air conditioner that blows a downward air flow from a plurality of air outlets provided at a predetermined interval in the lateral direction of the chicken raising cage at a position in the vicinity of the exhaust port side of the first blower fan in the longitudinal direction of the chicken raising cage, are combined into an air conditioning set, The chicken coop air conditioning system is characterized in that the air conditioning sets are arranged at predetermined intervals in the longitudinal direction of the chicken coop.

2. The predetermined arrangement position of the first blower fan in the lateral direction of the chicken raising cage is set as a range in which the air blown from the first blower fan can cover the entire lateral direction in the chicken coop, and the predetermined arrangement position of the air outlets in the lateral direction of the chicken raising cage is set as passages on both sides in the lateral direction of the chicken raising cage. The predetermined arrangement position of the air conditioning set in the longitudinal direction of the chicken raising cage is set as a range in which the wind speed of wind force class 2 of the air flow generated by either the second blower fan or the first blower fan can ensure a wind force of class 1 or more, and the ambient temperature in the chicken coop by either the intake air cooling means or the air conditioner is set as a range in which the ambient temperature that does not cause heat stress to the chickens can be achieved. The chicken coop air conditioning system according to claim 1, characterized in that it is set for each range.

3. The chicken coop air conditioning system according to claim 1 or 2, characterized in that the first blower fan and the second blower fan are capable of forward and reverse rotation.

4. The air conditioner takes in outside air from an outdoor unit arranged outside the chicken coop, is provided with an opening and closing means that can be opened and closed at the air outlets, and is surrounded by a housing made of a material having corrosion resistance to ammonia and acid in a sealed structure around the air conditioner. The chicken coop air conditioning system according to any one of claims 1 to 3, characterized in that it is like this.

5. In the case where the chicken coop is two - story and the chicken - raising cages are arranged in rows on the first and second floors respectively, the floor material of the passage between the chicken - raising cages on the second floor is a grating structure. On the second floor, the intake air cooling means, the second blower fan, the air - conditioning set, and the exhaust fan are installed. On the first floor, the intake air cooling means, the second blower fan, the first blower fan, and the exhaust fan are installed. The chicken coop air - conditioning system according to any one of claims 1 to 4, characterized in that.

6. The chicken coop air - conditioning system according to any one of claims 1 to 5, characterized in that the intake air cooling means is a spraying device that sprays water in a mist form or a cooling pad.

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