Ventilation system for livestock barns

Abstract

The system will be able to switch ventilation methods in response to environmental changes such as temperature fluctuations. [Solution] A ventilation system for a livestock barn comprising a barn room for housing livestock and a ceiling room provided above the barn room, comprising: a partition member that partitions the outside air intake and controls the area of ​​outside air intake by moving up and down; a control plate positioned inside the partition member and controlling the amount of air that enters from the outside air intake and passes into the barn room; and an opening shielding control member that closes or lowers to open an opening that penetrates between the floor of the ceiling room and the ceiling of the barn room. When the partition member is lowered to limit the area of ​​outside air intake, the control plate blocks the passage of air, sending the air that enters from the outside air intake to the ceiling room, and the opening shielding control member is lowered to open the opening, allowing air to flow from the ceiling room into the barn room.

Description

Technical Field

[0001] The present invention relates to a ventilation system for livestock houses, and particularly to a ventilation system for livestock houses that can switch the ventilation method of the livestock house.

Background Art

[0002] Techniques related to the ventilation of livestock houses are described in, for example, Patent Documents 1-4. Patent Document 1 describes a ventilation device that exchanges the air inside a livestock house where livestock such as chickens and pigs grow with the outside air. Specifically, Patent Document 1 describes a ventilation device for a livestock house in which an outside air intake fan is attached to a ventilation hole in the side wall behind the ceiling of the livestock house, and the outside air taken into the ceiling space by this outside air intake fan flows through the ventilation hole provided in the ceiling into the room where the livestock grow below. On the other hand, a discharge passage for discharging the air in the room where the livestock grow is provided in the livestock house, and at least a part of this discharge passage is constituted by the space between the side walls of a double-wall structure that constitutes the room where the livestock grow, and a curtain that can be wound up and whose opening area can be adjusted is provided at the opening of the inner side wall. A ventilation device for a livestock house is described.

[0003] Patent Document 2 describes a ventilation device that can easily adjust the temperature inside a chicken house by opening and closing the side outside air inflow part of a tunnel chicken house. Specifically, Patent Document 2 describes that in a ventilation device for a tunnel chicken house, the side opening and closing mechanisms provided at the side outside air inflow parts on both sides are formed horizontally along the side outside air inflow parts by a panel material that bends by its own weight or static pressure, and a baffle whose lower edge is supported so that the upper end side swings, and a plurality of support wires are provided above this baffle at a predetermined interval in the longitudinal direction, and the upper edge side is lifted and supported so that the baffle is in an inclined state. It is described that when the main drive unit is driven, all the support wire tips are simultaneously raised and lowered by the same distance, and when the auxiliary drive unit is driven, a difference is provided in the raising and lowering distances of the support wire tips at a predetermined part.

[0004] Patent Document 3 describes a control device that enables efficient and energy-saving operation in a chicken coop equipped with a heat exchanger. Specifically, Patent Document 3 describes a control device 30 for a ventilation system of a chicken coop 1, comprising a building structure consisting of a floor 2, side walls 3a, 3b, gable walls 4a, 4b, and a roof 5; a plurality of heaters 10 arranged in the longitudinal direction between the side walls 3a, 3b; a ventilation fan with a door 12 located on one of the gable walls 4a, 4b; shutters 13, 13a located on the other gable wall 4b or on the side walls 3a, 3b near this gable wall 4b; a heat exchanger 14 provided on the side wall 3b; an environmental measuring instrument 20 located inside the building structure; and an outside air thermometer 16a located outside the building structure. The control device 30 is connected to at least the environmental measuring instrument 20 and the outside air thermometer 16a, controls the operation of the heat exchanger 14 and the ventilation fan with a door 12, and operates the ventilation fan with a door 12 when the ventilation amount by the heat exchanger 14 has not reached a predetermined amount determined based on the value from the environmental measuring instrument 20.

[0005] Patent Document 4 describes a positive-pressure chicken coop in which air drawn in from the outside is supplied as evenly as possible to a multi-tiered cage of substantially 10 or more levels, and the air is exhausted outside the chicken coop by natural exhaust. Specifically, Patent Document 4 describes a two-story positive-pressure chicken coop characterized by the following features: a second-floor floorboard (1) is laid to divide the inside of the chicken coop into upper and lower sections to form a two-story cage room with two upper and lower rooms; ceiling ducts (6A, 6B) are provided between the roof (4) and the ceiling (5A) of the upper cage room (2A) and between the second-floor floorboard and a newly installed ceiling (5B) of the lower cage room (2B); and each ceiling duct is provided with an air inlet (7A, 7B), air intake means (8A, 8B), air inlet (9A, 9B) and air outlet (10A, 10B) for each cage room in substantially the same arrangement. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Unexamined Patent Publication No. 63-25443 [Patent Document 2] Japanese Patent Publication No. 2006-174791 [Patent Document 3] Japanese Patent Publication No. 2019-10010 [Patent Document 4] Japanese Patent Application Publication No. 10-038337 [Overview of the project] [Problems that the invention aims to solve]

[0007] When ventilating livestock barns, it is desirable to switch ventilation methods in consideration of environmental changes such as temperature fluctuations. For example, exposing livestock to cold air in winter can cause stress, so it is desirable to switch to a different ventilation method in winter than in summer to avoid directly exposing livestock to cold air. The present invention aims to provide a ventilation system for livestock barns that can switch the ventilation method in response to environmental changes such as temperature changes. [Means for solving the problem]

[0008] The ventilation system for a livestock barn according to the present invention is a ventilation system for a livestock barn comprising a livestock barn room for housing livestock and a ceiling room provided above the livestock barn room, A partition member that partitions the outside air intake and controls the outside air intake area of ​​the outside air intake by moving up and down, A control plate is positioned inside the partition member and controls the amount of air that enters from the outside air intake and passes into the livestock room. The system includes an opening shielding control member that either closes the opening that penetrates between the floor of the ceiling chamber and the ceiling of the livestock barn, or lowers to open the opening, This is a ventilation system for a livestock barn, which, when the partition member is lowered to limit the area of ​​outside air intake, blocks the passage of air through the control plate, sends the air that entered from the outside air intake to the ceiling chamber, lowers the opening shielding control member to open the opening, and allows air to flow from the ceiling chamber into the livestock barn room. [Effects of the Invention]

[0009] According to the present invention, there is provided a ventilation system for a livestock house that can switch the ventilation method in response to environmental changes such as temperature changes.

Brief Description of the Drawings

[0010] [Figure 1] It is a diagram showing a longitudinal sectional view of a configuration example of a chicken house equipped with a ventilation system in winter according to the first embodiment of the present invention. [Figure 2] It is a diagram showing a longitudinal sectional view of a configuration example of a chicken house equipped with a ventilation system in summer according to the first embodiment of the present invention. [Figure 3] It is a schematic perspective view showing the overall configuration of the chicken house. [Figure 4] It is a diagram showing a longitudinal sectional view of the chicken house in a direction perpendicular to the building. [Figure 5] It is a diagram showing a plurality of openings on the floor surface of the ceiling room. [Figure 6] It is a partial sectional view for explaining the configuration and operation of the wife-side intake part and the inlet in winter. [Figure 7] It is a partial sectional view for explaining the configuration and operation of the wife-side intake part and the inlet in summer. [Figure 8] It is a diagram for explaining a roll-up curtain. [Figure 9] It is a diagram showing a state in which two curtains are rolled up and each window of the chicken house room is open. [Figure 10] It is a diagram showing the configuration of the movable panel. [Figure 11] It is a diagram showing a state in which the inlet has descended with respect to the opening. [Figure 12] It is a diagram showing how the air in the ceiling room flows into the chicken house room in the state shown in FIG. 11. [Figure 13] It is a diagram showing a state in which the inlet covers the opening. [Figure 14] It is a diagram showing a state when the air in the ceiling room no longer flows into the chicken house room. [Figure 15] It is a block diagram showing a configuration example of the control device.

Best Mode for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In this specification and the claims, "livestock house" refers to a facility for raising livestock, for example, a chicken coop, a pigsty or a cowshed. In the following description, a chicken coop will be taken as an example for explanation, but this embodiment is also applicable to pigsties, cowsheds, etc.

[0012] FIG. 1 is a longitudinal sectional view showing a configuration example in winter of a chicken coop equipped with a ventilation system according to the first embodiment of the present invention. FIG. 2 is a longitudinal sectional view showing a configuration example in summer of a chicken coop equipped with a ventilation system according to the first embodiment of the present invention. FIG. 3 is a schematic perspective view showing the overall configuration of the chicken coop. FIG. 4 is a view showing a longitudinal section of the chicken coop in a direction perpendicular to the building.

[0013] X shown in FIG. 3 indicates one side surface (hereinafter referred to as the wife side) perpendicular to the building of the chicken coop 10. Outside air enters from the wife side of the chicken coop 10, and air is discharged from the exhaust chamber 140. There is no roof above the exhaust chamber 140 of the chicken coop and it is a through-hole. As shown in FIG. 4, the chicken coop 10 has an upper and lower layer structure. The lower layer is partitioned by a wall into a chicken coop chamber layer 110A and a chicken coop chamber layer 110B, and the upper layer is partitioned by a wall into a chicken coop chamber layer 120A and a chicken coop chamber layer 120B. Ceiling chambers 130A and 130B are provided above the chicken coop chamber layers 120A and 120B of the upper layer, respectively, and are partitioned by a wall. FIGS. 1 and 2 show cross-sections in a direction parallel to the building of the chicken coop chamber layer 110A in the lower layer, the chicken coop chamber layer 120A in the upper layer, and the ceiling chamber 130A, or cross-sections in a direction parallel to the building of the chicken coop chamber layer 110B in the lower layer, the chicken coop chamber layer 120B in the upper layer, and the ceiling chamber 130B. Air can pass between the floor of the upper layer and the ceiling of the lower layer of the chicken coop 10 through a plurality of openings.

[0014] The ventilation system of the chicken coop 10, as shown in Figures 1 and 2, is equipped with a gable end air intake A, an inlet 101, and a ventilation fan 102. As described below, the ventilation method is switched between winter and summer by operating the gable end air intake A and the inlet 101. Details of the gable end air intake A and the inlet 101 will be described later.

[0015] In winter, as shown in Figure 1, the chicken coop 10 controls the end-side air intake A to guide air entering from the end of the chicken coop 10 into the ceiling chambers 130A and 130B shown in Figure 4. By lowering multiple inlets 101 that are positioned opposite multiple openings in the ceiling of the upper chicken coop chambers 120A and 120B, air from the ceiling chambers 130A and 130B is drawn into the upper chicken coop chambers 120A and 120B through multiple openings in the floor of the ceiling chambers 130A and 130B. Then, the air from the chicken coop chambers 110A, 110B, 120A, and 120B is drawn into the exhaust chamber 140 using a ventilation fan 102. The air that enters the exhaust chamber 140 is discharged outside the chicken coop 10 from the open exhaust chamber 140. Figure 5 shows the multiple openings in the floor surfaces of ceiling rooms 130A and 130B. As shown in Figure 5, the floor surface of ceiling room 130A has multiple openings, consisting of four strip-shaped openings 106A1 and four strip-shaped openings 106A2 arranged in a row, aligned in the direction of the ridge. The floor surface of ceiling room 130B has multiple openings, consisting of four strip-shaped openings 106B1 and four strip-shaped openings 106B2 arranged in a row, aligned in the direction of the ridge. The four strip-shaped openings 106A1 and four strip-shaped openings 106B1 are the openings closer to the gable end.

[0016] In the summer, as shown in Figure 2, the chicken coop 10 controls the end-side air intake A to allow air entering from the end of the coop 10 into the chicken coop rooms 110A, 110B, 120A, and 120B. At this time, the inlet 101 is positioned to block multiple strip-shaped openings in the ceiling of the upper chicken coop rooms 120A and 120B. Then, the air from the chicken coop rooms 110A, 110B, 120A, and 120B is drawn into the exhaust chamber 140 using the ventilation fan 102. The air that enters the exhaust chamber 140 is then discharged outside the chicken coop 10 from the open exhaust chamber 140. The inlet 101 is an opening shielding control member that either closes the opening that penetrates between the floor of the ceiling chamber and the ceiling of the chicken coop chamber, or lowers to open the opening.

[0017] In the ventilation system of chicken coop 10, during winter, air entering from the gable end of chicken coop 10 is guided into the ceiling chambers 130A and 130B, and the air in the ceiling chambers 130A and 130B is brought into the upper chicken coop chambers 120A and 120B through multiple strip-shaped openings in the floor of the ceiling chambers 130A and 130B. The air in the upper part of the chicken coop chambers 120A and 120B is warmed by the body heat of the many chickens. Therefore, the air entering from the gable end of chicken coop 10 enters the chicken coop chambers 120A and 120B from the floor of the ceiling chambers 130A and 130B and mixes with the warmed air in the upper part of the chicken coop chambers 120A and 120B. In this way, the cold air that enters from the end of the chicken coop 10, similar to the outside air, mixes with the air that has been warmed in the chicken coop layers 120A and 120B, resulting in an air temperature that is appropriate for the chickens. On the other hand, during the summer, air entering from the end of the chicken coop 10 is introduced into the chicken coop rooms 110A, 110B, 120A, and 120B, so that the air entering from the end of the chicken coop 10 is replaced with air that has been warmed by the body heat of many chickens and is discharged by the ventilation fan 102.

[0018] The configuration and operation of the end-side air intake A and inlet 101 will be described in detail below using Figures 6 to 14. First, the configuration and operation of the end-side air intake A will be explained using Figures 6 to 10. The end-side air intake A is provided with a curtain 103 that covers the end-side window 105 of the chicken coop 10, as shown in Figures 6, 8, and 9, and movable panels 104 that are arranged at regular intervals inside the curtain 103, as shown in Figures 6, 7, and 10. The end-side window 105 is provided in each of the chicken coop room layers 110A, 110B, 120A, and 120B, and serves as an outside air intake. The curtain 103 acts as a partition member that divides the outside air intake and controls the area of ​​outside air intake by moving up and down. The partition member is not limited to a curtain; it may also be a window shutter. Lowering the curtain 103 limits the area of ​​outside air intake.

[0019] Curtain 103 is a roll-up curtain, as shown in Figure 8. Curtain 103 moves electrically or manually to open and close the window 105 on the gable end. In winter, curtain 103 is lowered, closing the necessary portion of the window 105 on the gable end, and in summer, curtain 103 is rolled up, opening the window 105 on the gable end. Figure 9 shows the state where both curtains 103 are rolled up, and the windows of chicken coop layers 110A, 110B, 120A, and 120B are open. When both curtains 103 are lowered, as shown in Figure 6, the windows of chicken coop layers 110A, 110B, 120A, and 120B are closed from above by curtain 103, covering only the necessary portion. At that time, the windows of chicken coop layers 110A, 110B, 120A, and 120B are open from below, only in portions corresponding to the amount of incoming air.

[0020] As shown in Figures 6, 7, and 10, the movable panel 104 comprises a plurality of rotatable movable parts 104A and is installed from the floor on the gable end of the lower chicken coop layers 110A and 110B to the ceiling on the gable end of the upper chicken coop layers 120A and 120B. The movable panel 104 may not be a single movable panel, but rather movable panels may be provided for both the chicken coop layers 110A and 120A, and for the chicken coop layers 110B and 120B. In Figures 6 and 7, the number of movable parts 104A is the same for the lower layer (chicken coop layers 110A, 110B) and the upper layer (chicken coop layers 120A, 120B), but the number of movable parts 104A may be different for the lower and upper layers. The movable panel 104 is positioned on the inside of the curtain 103 (chicken coop layer side) and acts as a control plate that controls the amount of air passing through the chicken coop (which becomes the livestock room) from the outside air intake (for example, the window of the upper layer, or the windows of the upper and lower layers) by changing the rotation angle. The angles of the multiple movable parts 104A with respect to the surface of the movable panel 104 may be different for the lower and upper layers. In this way, the movable panel 104 can be controlled to change the amount of air passing through the lower and upper layers. In winter, as shown in Figure 6, the multiple movable parts 104A are closed so as to be parallel to the surface of the movable panel 104, obstructing the passage of air (blocking air passage). In summer, as shown in Figure 7, the multiple movable parts 104A rotate and open so as to be non-parallel to the surface of the movable panel 104, allowing air passage. The amount of air that passes through is determined by the angle of the multiple movable parts 104A with respect to the surface of the movable panel 104.

[0021] As shown in Figure 6, in winter, the curtain 103 is lowered, closing off parts of the upper and lower windows 105, preventing air from entering through those windows, while air enters through the open portion of the lower window 105 that is not closed by the curtain 103 (hereinafter referred to as the open portion). (Since parts of the upper and lower windows 105 are closed, the area for outside air intake is limited.) At this time, since multiple movable parts 104A of the movable panel 104 are closed, the passage of air is blocked, and the air from the open portion of the lower window 105 rises through the space between the curtain 103 and the movable panel 104 and flows into the ceiling rooms 130A and 130B. Furthermore, when multiple movable parts 104A of the movable panel 104 are closed and blocking the passage of air, the angles of the multiple movable parts 104A may be adjusted to allow air to pass through, such as by adjusting the angles of the multiple movable parts 104A to the extent that it does not hinder the flow of air from the opening of the lower layer window 105 into the ceiling chambers 130A and 130B. This configuration is also considered to be blocking the passage of air. As shown in Figure 7, in the summer, the curtain 103 is raised and the window 105 on the gable end is opened, allowing air to flow in from the window 105 on the gable end (expanding the area for outside air intake from a limited state). As air flows in from the window 105 of the lower layer, the curtain 103 is rolled up and air flows in from the window 105 of the upper layer. At this time, since multiple movable parts 104A of the movable panel 104 are open, the air that flows in from the window 105 of the lower layer passes through the movable panel 104 and flows into the lower chicken coop layers 110A and 110B, and the air that flows in from the window 105 of the upper layer also passes through the movable panel 104 and flows into the upper chicken coop layers 120A and 120B.

[0022] Next, the configuration and operation of the inlet 101 will be explained using Figures 11 to 14. The inlet 101 is provided so as to face multiple openings 106 in the floor surface of the ceiling chambers 130A and 130B. The multiple openings 106 are as follows: four openings 106A1 and four openings 106A2 in Figure 5 correspond to the ceiling chamber 130A, and four openings 106B1 and four openings 106B2 correspond to the ceiling chamber 130B.

[0023] The multiple openings 106 are divided into four regions as shown in Figure 5: four openings 106A1, four openings 106A2, four openings 106B1, and four openings 106B2. By controlling the vertical movement of the inlet 101 in accordance with each of the four openings 106A1, four openings 106A2, four openings 106B1, and four openings 106B2, the amount of air entering the chicken coop from the openings in each of the four regions can be adjusted as needed. For example, if the sensor temperature differs between the chicken coop intake region under the four openings 106A1 and the chicken coop exhaust region under the four openings 106A2, the amount of air entering can be changed between the chicken coop intake region and the chicken coop exhaust region by changing the vertical movement of the inlet 101 in the chicken coop intake region and the chicken coop exhaust region.

[0024] As shown in Figure 11, when the inlet 101 descends over the multiple openings 106, as shown in Figure 12, the air in the ceiling chambers 130A and 130B passes through the multiple openings 106 and flows into the upper chicken coop chambers 120A and 120B. As shown in Figure 13, when the inlet 101 covers the multiple openings 106, as shown in Figure 14, the multiple openings 106 in the floors of the ceiling chambers 130A and 130B are closed, so the air in the ceiling chambers 130A and 130B no longer flows into the upper chicken coop chambers 120A and 120B.

[0025] The operation of the inlet 101 is performed in conjunction with the operation of the end-side air intake A. In winter, when controlling the curtain 103 and movable panel 104 of the gable end air intake A to allow air entering from the gable end of the chicken coop 10 to flow into the ceiling rooms 130A and 130B, as shown in Figure 11, the multiple inlets 101 facing the multiple openings 106 in the floor surface of the ceiling rooms 130A and 130B will descend, and the multiple openings 106 will be opened. In this way, the air from the gable end of the chicken coop 10 that enters the ceiling rooms 130A and 130B can be allowed to flow into the upper chicken coop rooms 120A and 120B through the multiple openings 106 in the floor surface of the ceiling rooms 130A and 130B.

[0026] In the summer, when controlling the curtain 103 and movable panel 104 of the end-side air intake A to allow air entering from the end of the chicken coop 10 to flow into the chicken coop room layers 110A, 110B, 120A, and 120B, multiple inlets 101 cover multiple openings 106 in the floor surface of the ceiling rooms 130A and 130B. In this case, the air entering from the end of the chicken coop 10 will not enter the upper chicken coop room layers 120A and 120B from the ceiling rooms 130A and 130B.

[0027] The control of the curtain 103, the movable panel 104, and the inlet 101 may be performed individually by the user using the curtain drive unit that drives the curtain 103, the movable panel drive unit that drives the movable panel 104, and the inlet drive unit that drives the inlet 101, but the control device may also control the curtain drive unit, the movable panel drive unit, and the inlet drive unit to work in coordination.

[0028] Figure 15 is a block diagram showing an example configuration of a control device. As shown in Figure 15, the control device 200 includes a curtain drive unit 201 that controls the raising and lowering of the curtain, a movable panel drive unit 202 that controls the rotation of the movable part 104A, an inlet drive unit 203 that controls the lowering and raising of the inlet, an operation unit 204, a control unit 205, and a communication unit 206. The control unit 205 controls the curtain drive unit 201, the movable panel drive unit 202, and the inlet drive unit 203 based on the winter mode or summer mode instruction signal input by the operation unit 204, and outputs the control status (winter mode or summer mode) of the curtain drive unit 201, the movable panel drive unit 202, and the inlet drive unit 203 to the outside via a communication line through the communication unit 206. The control status may be displayed on a display unit such as a liquid crystal display device (not shown). In winter mode, the control shown in Figures 6, 11, and 12 is performed, and in summer mode, the control shown in Figures 7, 13, and 14 is performed. The control status may include the vertical movement of the curtain, the angles of the multiple movable parts 104A of the movable panel 104, and the vertical movement of the inlet 101.

[0029] The control unit 205 may control the curtain drive unit 201, the movable panel drive unit 202, and the inlet drive unit 203 when the outside air temperature rises or when the difference between the outside air temperature and the temperature inside the chicken house exceeds a certain value, based on the outside air temperature outside the chicken house 10 detected by the temperature sensor, or the outside air temperature outside the chicken house 10 and the temperature inside the chicken house room layers 110A, 110B, 120A, and 120B detected by the temperature sensor. Furthermore, the control unit 205 may control the curtain drive unit 201, the movable panel drive unit 202, and the inlet drive unit 203 based on a mode instruction signal for winter mode or summer mode received from the communication unit 206. The mode instruction signal may include information indicating the vertical movement of the curtain, the angles of the multiple movable parts 104A of the movable panel 104, and the vertical movement of the inlet 101.

[0030] The control unit 205 of the control device 200 can be configured as a computer, which includes a arithmetic processing unit such as a CPU (Central Processing Unit), an auxiliary storage device such as an SSD (Solid State Drive) that stores various control programs such as application software or an OS (Operating System), and a main memory such as RAM (Random Access Memory) for storing data temporarily required for the arithmetic processing unit to execute programs.

[0031] In the computer, the processing unit reads application software or the operating system from the auxiliary storage device, expands the read application software or OS into the main memory, and performs calculations based on this application software or OS. Based on the results of these calculations, it controls the curtain drive unit 201, the movable panel drive unit 202, and the inlet drive unit 203.

[0032] As described above, the ventilation system for the chicken coop of this embodiment allows for switching the ventilation method in response to environmental changes such as temperature changes.

[0033] While the embodiments described above are preferred embodiments of the present invention, the scope of the present invention is not limited to these embodiments, and various modifications can be made to implement the invention without departing from the spirit of the invention.

[0034] For example, the above-described embodiment describes a case where the chicken coop is a single-story, two-story building, but the chicken coop may have three or more stories or even just one story. If the chicken coop has three or more stories, the curtain 103 will close or open the windows on the first, second, and third stories. If the chicken coop has one story, a portion of the window on the gable end will be opened, and the curtain 103 will be raised or lowered to close or open the portion beyond this opening. In addition, the above-described embodiment may be applied to a multi-story chicken coop in which one or more chicken coop rooms and ceiling rooms are independently provided on each floor. In this case, the curtain 103, movable panel 104, and inlet 101 are provided on each floor, and each floor is provided with a window 105 through which air flows in. Furthermore, while the above-described embodiment uses temperature changes as an example of environmental changes, humidity changes, or both temperature and humidity changes may also be used. As an example of temperature changes, the example given was temperature changes between winter and summer, but temperature changes are not limited to seasonal transitions. For example, if the temperature changes significantly over a month, the ventilation method may be appropriately switched in response to the temperature changes over that month. Furthermore, in the embodiment described above, filters for virus removal may be provided in the windows of the lower and upper layers of the end-side air intake A.

[0035] The ventilation system for chicken coops according to this disclosure can take various forms, including the embodiments described above, having the following configurations.

[0036] (1) A ventilation system for a livestock barn (e.g., chicken barn 10) comprising livestock barn rooms (e.g., chicken barn rooms 110A, 110B, 120A, 120B) and ceiling rooms (e.g., 130A, 130B) provided above the livestock barn rooms, A partition member (for example, a curtain 103) that partitions the outside air intake and controls the area of ​​outside air intake by moving up and down, A control plate (for example, a movable panel 104) is positioned inside the partition member and controls the amount of air that enters from the outside air intake and passes into the livestock room, The system includes an opening shielding control member (e.g., inlet 101) that either closes an opening (e.g., opening 106) penetrating between the floor of the ceiling chamber and the ceiling of the livestock room, or lowers to open the opening, A ventilation system for a livestock barn, wherein when the partition member is lowered to limit the area of ​​outside air intake, the control plate blocks the passage of air, sending the air that entered from the outside air intake to the ceiling chamber, and the opening shielding control member is lowered to open the opening, allowing air to flow from the ceiling chamber into the livestock barn room.

[0037] (2) The ventilation system for a livestock barn as described in (1) above, wherein when the partition member is raised to expand the outside air intake area from a restricted state, the air is allowed to pass through the control plate to allow the air that entered from the outside air intake to flow into the livestock barn room, and the opening that penetrates between the floor of the ceiling room and the ceiling of the livestock barn room is sealed with the opening shielding control member.

[0038] (3) The ventilation system for the livestock barn described in (1) above, wherein the operation is performed during the winter.

[0039] (4) The ventilation system for a livestock barn as described in (1) above, wherein the control plate comprises a plurality of rotatable movable parts, and the amount of air entering from the outside air intake and passing into the livestock barn room is controlled by changing the rotation angle of the plurality of movable parts.

[0040] (5) The ventilation system for a livestock barn as described in (4) above, wherein the livestock barn rooms are provided on each of the multiple layers, and the control plate controls the amount of passage for each layer.

[0041] (6) A ventilation system for a livestock barn according to any one of (1) to (5), wherein a plurality of openings are provided, the plurality of openings are divided in the longitudinal direction of the livestock barn, and the amount of air entering the livestock barn room from the openings is controlled by the opening shielding control member for each divided region. [Explanation of Symbols]

[0042] 10 chicken coops 101 Inlet 102 Ventilation fan 103 Curtains 104 Movable Panel 105 Window 106 Opening 106A1, 106A2, 106B1, 106B2 opening 110A, 110B, 120A, 120B Chicken house floor 130A, 130B Ceiling Room 140 Exhaust chamber 200 Control device 201 Curtain drive unit 202 Movable Panel Drive Unit 203 Inlet drive unit 204 Operation section 205 Control Unit 206 Communications Department

Claims

1. A ventilation system for a livestock barn, comprising a barn room for housing livestock and a ceiling room provided above the barn room, A partition member that partitions the outside air intake and controls the outside air intake area of ​​the outside air intake by moving up and down, A control plate is positioned inside the partition member and controls the amount of air that enters from the outside air intake and passes into the livestock room. The system includes an opening shielding control member that either closes the opening that penetrates between the floor of the ceiling chamber and the ceiling of the livestock barn, or lowers to open the opening, A ventilation system for a livestock barn, wherein when the partition member is lowered to limit the area of ​​outside air intake, the control plate blocks the passage of air, sending the air that entered from the outside air intake to the ceiling chamber, and the opening shielding control member is lowered to open the opening, allowing air to flow from the ceiling chamber into the livestock barn room.

2. The ventilation system for a livestock barn according to claim 1, wherein when the partition member is raised to expand the outside air intake area from a restricted state, the air is allowed to pass through the control plate to allow the air that entered from the outside air intake to flow into the livestock barn room, and the opening shielding control member closes the opening that penetrates between the floor of the ceiling room and the ceiling of the livestock barn room.

3. The ventilation system for a livestock barn according to claim 1, wherein the operation described above is performed during the winter.

4. The ventilation system for a livestock barn according to claim 1, wherein the control plate comprises a plurality of rotatable movable parts, and the amount of air entering from the outside air intake and passing into the livestock barn room is controlled by changing the rotation angle of the plurality of movable parts.

5. The ventilation system for a livestock barn according to claim 4, wherein the livestock barn rooms are provided on each of the multiple layers, and the control plate controls the amount of passage through each layer.

6. A ventilation system for a livestock barn according to any one of claims 1 to 5, wherein a plurality of openings are provided, the plurality of openings are divided in the longitudinal direction of the livestock barn, and the amount of air entering the livestock barn room from the openings is controlled by the opening shielding control member for each divided region.

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