WO2023149430A1 - Poultry house ventilation system and poultry house ventilation method - Google Patents

Poultry house ventilation system and poultry house ventilation method Download PDF

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Publication number
WO2023149430A1
WO2023149430A1 PCT/JP2023/003074 JP2023003074W WO2023149430A1 WO 2023149430 A1 WO2023149430 A1 WO 2023149430A1 JP 2023003074 W JP2023003074 W JP 2023003074W WO 2023149430 A1 WO2023149430 A1 WO 2023149430A1
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poultry house
ventilation
air
poultry
control
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PCT/JP2023/003074
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French (fr)
Japanese (ja)
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邦男 南部
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株式会社エヌ・ビー・エル
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Publication of WO2023149430A1 publication Critical patent/WO2023149430A1/en

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • the present invention relates to a poultry house ventilation system and a poultry house ventilation method.
  • Ventilation control performed in a conventional closed poultry house is a uniform amount of ventilation required by chickens in the poultry house as organisms and comfortable for survival.
  • Various measures have been taken with the aim of controlling the temperature inside the poultry house.
  • infectious viruses such as avian influenza virus and parasites such as ticks
  • avian influenza virus and parasites such as ticks
  • these infectious disease viruses, parasites, and the like are spread by floating or adhering together with dust, dust, feathers, and the like.
  • ventilation control for conventional closed poultry houses focuses on leveling the temperature inside the poultry house and satisfying the minimum required ventilation volume necessary for the survival of chickens in the poultry house. For this reason, there is insufficient control to remove dust, dust, feathers, and the like caused by air stagnation and swirling currents in the poultry house, and countermeasures against parasites, infectious viruses, and the like are inadequate.
  • ventilation equipment such as ventilation fans to equalize the temperature inside the poultry house, for example, in a semi-enclosed poultry house or an open poultry house with walls that can open and close curtains automatically or manually. It can also occur in poultry houses with Moreover, it is the same even if it is natural ventilation.
  • the present invention reduces the risk of parasites adhering to chickens and the spread of infectious disease viruses by controlling the ventilation inside the poultry house so that dust, dust, feathers, etc. do not gather in specific places inside the poultry house.
  • the task is to
  • the poultry house ventilation system includes ventilation equipment such as an inlet fan, an exhaust fan, and an air inlet provided in the poultry house, and a control device for controlling the ventilation equipment. It is characterized by controlling the ventilation equipment so that a certain amount of stagnation or swirling air does not occur at a specific location in the poultry house for a predetermined time or longer.
  • the ventilation equipment is controlled so that a certain amount of air stagnation or swirl flow does not occur in specific locations in the poultry house for more than a predetermined period of time. You can avoid gathering. As a result, it is possible to prevent parasites and infectious disease viruses such as avian influenza virus from gathering at specific locations inside the poultry house. As a result, it is possible to reduce the possibility of parasitic parasites infesting chickens, and to reduce the risk of chickens being infected with infectious disease viruses such as avian influenza virus.
  • the ventilation equipment when it is determined that the air flow in the poultry house is constant for a predetermined time by a timer built into the control device or an external time measuring unit, etc., the ventilation equipment is started or stopped. The amount of air blown, the direction of the wind, etc. are changed, or the opening of the outside air intake port of the ventilation equipment, the direction of the air intake, etc. are changed. As a result, according to the present invention, air stagnation and swirl flow do not occur at specific locations for a predetermined time or longer, and it is possible to prevent parasites, infectious viruses, and the like from staying or gathering at specific locations.
  • the control device controls the elapsed time, the humidity in the poultry house, the air quality in the poultry house, or the wind in the poultry house It is desirable to alter the control of the ventilation facility to vary the airflow based on at least one of the conditions of.
  • the temperature inside the poultry house may be used in combination.
  • the “air quality in the poultry house” refers to the concentration or amount of gas components (e.g., carbon dioxide (CO 2 ), oxygen (O 2 ), etc.) contained in the air in the poultry house, or the air quality in the poultry house. This concept includes the amount of dust, mites, feathers, etc.
  • the control device may be configured to change the airflow by changing the control of the ventilation equipment based on the elapsed time, and the conditions in the poultry house (for example, temperature, humidity, air quality, wind speed, wind direction, etc.) ) or change the air flow by changing the control of the ventilation equipment based on the change over time or the amount of change.
  • the control device changes the control of the ventilation equipment to change the air flow formed in the poultry house. It is desirable to With this configuration, the airflow can be changed without using a sensor for measuring the conditions inside the poultry house. Also, due to the time control, the airflow can be varied in advance according to the schedule.
  • the ventilation equipment has a plurality of ventilation fans provided on the gable wall of the poultry house, and the control device controls the rotation speed of the ventilation fan, the number of ventilation fans to be operated, and the number of ventilation fans to be operated. It is desirable to change the airflow created within the house by changing the combination of ventilation fans. With this configuration, it is possible to variously change the pattern of the air flow formed inside the poultry house, and it is possible to change or eliminate the occurrence locations of air stagnation, swirl flow, etc. occurring inside the poultry house. can.
  • the ventilation equipment has a plurality of ventilation fans that are provided on the gable wall symmetrically with respect to the center line that extends vertically on the gable surface. It is conceivable that there are In general, these ventilation fans are operated symmetrically with respect to the central axis.
  • the present invention has the object of preventing the occurrence of constant air stagnation or swirling flow at specific locations in the poultry house for a predetermined time or longer.
  • the air flow formed in the poultry house is changed by changing the ventilation fan to be operated so as to be left-right asymmetric with respect to the center line extending vertically of the gable wall.
  • the ventilation fan to be operated so as to be left-right asymmetric with respect to the center line extending vertically of the gable wall.
  • the ventilation equipment includes a plurality of ventilation fans provided on one gable wall of the poultry house and an opening serving as an air inlet or an air outlet provided on the other gable wall or girder wall of the poultry house.
  • a plurality of ventilation fans provided on one gable wall of the poultry house and an opening serving as an air inlet or an air outlet provided on the other gable wall or girder wall of the poultry house.
  • the poultry house ventilation method according to the present invention is a poultry house ventilation method using ventilation equipment provided in the poultry house, wherein the poultry house ventilation method is such that a certain amount of air stagnation or swirl flow does not occur at a specific location in the poultry house for a predetermined time or longer. and controlling the ventilation equipment at the same time.
  • the present invention configured in this way, by controlling the ventilation inside the poultry house so that dust, dust, feathers, etc. do not gather in specific places inside the poultry house, parasites adhere to chickens and infectious disease viruses are prevented. Risk of transmission can be reduced.
  • FIG. 1 is a plan view schematically showing the configuration of a poultry house ventilation system according to an embodiment of the present invention
  • FIG. It is a side view which shows typically the structure of the poultry house ventilation system of the same embodiment.
  • FIG. 5 is a diagram showing a pattern example in left-right asymmetric control of the ventilation fan of the same embodiment;
  • FIG. 5 is an image diagram showing airflows in normal control and airflow change control of the same embodiment.
  • FIG. 10 is a plan view schematically showing the configuration of a poultry house ventilation system according to a modified embodiment
  • FIG. 11 is a side view schematically showing the configuration of a poultry house ventilation system according to a modified embodiment
  • FIG. 11 is a side view schematically showing the configuration of a poultry house ventilation system according to a modified embodiment;
  • the poultry house ventilation system 100 of this embodiment ventilates the poultry house 10 called a closed poultry house (windowless poultry house).
  • the poultry house 10 is a substantially rectangular parallelepiped building surrounded by four walls 10a to 10d. have. Further, inside the poultry house 10, there is provided a cage row 20 in which a plurality of cages for housing chickens are arranged along one direction.
  • FIG. 1 shows an example in which a plurality (here, three) of cage rows 20 are provided. Inside the poultry house 10, a plurality of cage rows 20 are arranged symmetrically in the gable direction (lateral direction), and the plurality of cage rows 20 are arranged in a row in the girder direction (longitudinal direction). It is
  • the poultry house ventilation system 100 includes a ventilation facility 2 provided in the poultry house 10 and a control device 3 that controls the ventilation facility 2, as shown in FIGS.
  • the ventilation equipment 2 partitions the inside and the outside of the poultry house 10 with one or more openings 21 that can be opened and closed provided in the partition wall (any of the walls 10a to 10d) that separates the inside and the outside of the poultry house 10. It has one or more ventilation fans 22 provided on the partition wall (one of the walls 10a to 10d).
  • the openings 21 of this embodiment are provided in one of the gable walls 10a and 10c (here, the gable wall 10a) perpendicular to the cage row 20 in the poultry house 10 and the girder walls 10b and 10d along the cage row 20.
  • the positions at which the openings 21 are provided can be set as appropriate. or diagonally.
  • the ventilation fan 22 of this embodiment is an exhaust fan that exhausts air from the inside of the poultry house 10 to the outside.
  • a plurality of ventilation fans 22 are provided on the other of the gable walls 10a and 10c (here, the gable wall 10c) perpendicular to the row of cages 20 in the poultry house 10. As shown in FIG.
  • the ventilation fans 22 are provided on the end wall 10c symmetrically with respect to the center line extending vertically from the end wall 10c.
  • the positions at which the plurality of ventilation fans 22 are provided can be set as appropriate. For example, they may be arranged vertically, horizontally, or diagonally on the gable wall 10c. good.
  • the ventilation fan 22 may be provided on the girder walls 10b and 10d along the row of cages 20 in the poultry house 10.
  • the opening 21 can function as an air inlet for introducing air from the outside of the poultry house 10 to the inside.
  • An air introduction port may be provided separately from the opening 21 .
  • the ventilation fan 22 may be an intake fan (intake fan) that supplies air from the outside of the poultry house 10 to the inside.
  • intake fan intake fan
  • the poultry house ventilation system 100 performs positive pressure ventilation of the poultry house 10. becomes.
  • the opening 21 can function as an air outlet for introducing air from the inside of the poultry house 10 to the outside.
  • an air outlet may be provided separately from the opening 21 .
  • the control device 3 prevents the air flow formed inside the poultry house 10 by the ventilation equipment 2 from becoming constant for a predetermined period of time. is to control the ventilation equipment 2 so as not to generate Specifically, the control device 3 controls the ventilation equipment 2 based on at least one of the elapsed time, the humidity in the poultry house 10, the air quality in the poultry house 10, and the state of the wind in the poultry house 10 (wind speed, wind direction, etc.). to change the airflow.
  • the air quality in the poultry house refers to the concentration or amount of gas components (e.g., carbon dioxide (CO 2 ), oxygen (O 2 ), etc.) contained in the air in the poultry house 10, or the air in the poultry house 10. Dust, mites, feathers, etc.
  • the control device 3 uses at least one of the following (1) to (5) as a trigger to change the control of the ventilation equipment 2 (in the case of a plurality, a combination thereof (AND conditions may be used, OR It may be a condition.)) can be used.
  • (1) Elapsed time In this case, the timer built into the control device 3 or the measured time of an external time measuring unit is used.
  • Humidity inside the poultry house, temporal change, amount of change, rate of change, etc. of this humidity In this case, the humidity detected by the humidity sensor provided inside the poultry house 10 is used.
  • Concentration or amount of air quality (e.g., CO2 , O2, etc.) in the poultry house changes over time, amount of change, rate of change, etc.
  • detection of a sensor such as a concentration sensor provided inside the poultry house 10 Concentration (quantity) is used.
  • Wind speed or wind direction in the poultry house changes over time, amount of change, rate of change, etc.
  • the wind speed (wind direction) detected by a sensor such as an anemometer provided inside the poultry house 10 is used.
  • control device 3 may be configured to change the airflow by changing the control of the ventilation equipment 2 based on the elapsed time, and the conditions inside the poultry house 10 (for example, temperature, humidity, air quality, wind speed and wind direction) etc.), the air flow may be changed by changing the control of the ventilation equipment 2 based on the change over time or the amount of change.
  • the control device 3 of the present embodiment changes the control of the ventilation equipment 2 based on the elapsed time when the control of the ventilation equipment 2 related to the ventilation of the poultry house 10 is in the same state for a predetermined time, to increase the airflow. It is configured to change.
  • the control device 3 is, for example, a so-called computer having a CPU, a memory, an A/D/D/A converter, and an input/output means. As a result, the functions described below are exhibited.
  • control device 3 opens and closes the opening 21 or changes its opening area, or changes the rotation speed of the ventilation fan 22, the number of the ventilation fans 22 to be operated, or the combination of the ventilation fans 22 to be operated. By doing so, the air flow formed inside the poultry house 10 is changed each time a predetermined time elapses.
  • the control device 3 is based on normal control for controlling the amount of ventilation required by the chickens in the poultry house 10 as living organisms and the uniform temperature inside the poultry house that is comfortable for survival.
  • airflow change control is performed with a control pattern different from the control pattern of normal control in order to change the airflow formed inside the poultry house 10 .
  • the timing may be a constant period, a time when the temperature in the poultry house exceeds or falls below a predetermined threshold value, or may be determined using various other parameters.
  • each airflow change system may have the same duration time, or may have different duration time.
  • the opening 21 when the opening 21 is closed in normal control, the opening 21 is opened in the airflow change control, and when the opening 21 is open in the normal control, the airflow change control , the opening 21 is closed or its opening area is changed.
  • the opening area may be changed continuously or stepwise during the airflow change control.
  • the rotational speed of the ventilation fans 22, the number of the ventilation fans 22 to be operated, and the combination of the ventilation fans 22 to be operated are changed between normal control and airflow change control.
  • the airflow change control is control for removing dust, dust, feathers, and the like formed inside the poultry house 10 .
  • the rotation speed of the ventilation fans 22 may be changed continuously or stepwise, or the number of the ventilation fans 22 to be operated and the combination of the ventilation fans 22 to be operated may be changed. .
  • FIG. 4 shows three patterns of left-right asymmetric control, other patterns may be used as long as left-right asymmetric control is performed.
  • the combination of the openings 21 to be opened may be changed.
  • FIG. 5 shows the state of the airflow in the control pattern of normal control and the airflow in the control pattern of airflow change control.
  • FIG. 5(a) is an image diagram of the steady state of the airflow in normal control, which is the state in the control pattern in which all the plurality of ventilation fans 22 are in operation.
  • FIG. 5(b) is an image diagram of airflow in a control pattern of airflow change control in which the opening degrees of the plurality of openings 21 are increased, for example, to full opening, while all of the plurality of ventilation fans 22 are in operation.
  • the majority of the plurality of ventilation fans 22 are operated all at once, and the air flow passing through the poultry house 10 is set as a control pattern for increasing the rotation speed of the plurality of ventilation fans 22. may be increased.
  • FIG. 5(c) is an image diagram of the airflow in the control pattern of the airflow change control in which the combination of the ventilation fans 22 to be operated is changed so as to be left-right asymmetric.
  • the control pattern may be such that the plurality of openings 21 are fully opened.
  • the airflow in a steady state under normal control changes due to changes in the operation pattern of the ventilation equipment 2 due to the control pattern of the airflow change control, and the air stagnation and swirl flow that occur under normal control. can be resolved.
  • the ventilation equipment is controlled so that a certain amount of air stagnation or swirling flow does not occur at a specific location in the poultry house 10 for a predetermined time or longer. It is possible to change or eliminate the occurrence place of stagnation, swirling flow, etc., and prevent dust, feathers, etc. from gathering. As a result, it is possible to prevent parasites and infectious disease viruses such as avian influenza virus from congregating at specific locations inside the poultry house 10 . As a result, it is possible to reduce the possibility of parasitic parasites infesting chickens, and to reduce the risk of chickens being infected with infectious disease viruses such as avian influenza virus.
  • the ventilation fan 22 to be operated is changed so as to be left-right asymmetric with respect to the center line extending vertically of the gable wall 10c, the stagnation or swirling of the air generated at a specific location in the poultry house is prevented. flow can be effectively eliminated.
  • the ventilation equipment 2 may have a stirring fan 23 that is provided inside the poultry house 10 and stirs the airflow.
  • the control device 3 changes the airflow by controlling the stirring fan 23 .
  • the agitating fan 23 blows and agitates the air toward the portion where air stagnation, swirling flow, or the like that occurs in normal control occurs.
  • the stirring fan 23 has an oscillating function and that the blowing direction can be changed. Note that the stirring fan 23 can be provided in addition to the configuration of the above embodiment or in place of the configuration of the above embodiment.
  • the ventilation equipment 2 may have a duct 24 provided inside the poultry house 10 and having one or a plurality of openable/closable air supply ports or exhaust ports.
  • the control device 3 changes the airflow by opening or closing one or more air supply ports or exhaust ports or by changing the opening area thereof.
  • the duct 24 can be provided in addition to the configuration of the above embodiment, or instead of the configuration of the above embodiment.
  • the ventilation equipment 2 may have an air current plate 25 provided inside the poultry house 10 .
  • a desired air flow can be formed by the air straightening plate 25 .
  • the air rectifying plate 25 can be provided in addition to the configuration of the above embodiment or instead of the configuration of the above embodiment.
  • the present invention can measure various factors such as humidity, air quality, wind speed, and wind direction inside the poultry house to change the control of the ventilation equipment.
  • various factors such as humidity, air quality, wind speed, and wind direction inside the poultry house.
  • the airflow change control as in the above embodiment can be performed.
  • the present invention is not limited to closed poultry houses (windowless poultry houses), and can be used in other types of poultry houses such as semi-closed poultry houses and open poultry houses that have wall surfaces in which curtains can be opened and closed automatically or manually. It can also be applied to a poultry house in which ventilation equipment such as a fan is controlled to equalize the temperature inside the poultry house.
  • the present invention by controlling the ventilation inside the poultry house so that dust, dust, feathers, etc. do not gather in specific places inside the poultry house, the risk of parasites adhering to chickens and the spread of infectious disease viruses is reduced. can do.
  • Poultry house ventilation system 10 Poultry house 10a, 10c... End wall X... Vertically extending center line 10b, 10d... Girder wall 2... Ventilation equipment 3... Control device R ... Air flow 21 ... Opening 22 ... Ventilation fan 23 ... Stirring fan 24 ... Duct 25 ... Air current plate

Abstract

The present invention controls ventilation in a poultry house to prevent the collection of dust, dirt, feathers, etc., in a specific area inside the poultry house, thereby reducing the risk of attachment of parasites to chickens and transmission of infectious viruses. The poultry house ventilation system of the invention is equipped with ventilation equipment 2 that is installed in a poultry house 10 and a controller 3 that controls the ventilation equipment 2, wherein the controller 3 controls the ventilation equipment 2 so as to prevent the occurrence of constant stagnation or swirling flow of air at a specific point in the poultry house 10 for a predetermined time or longer.

Description

鶏舎換気システム及び鶏舎換気方法Poultry House Ventilation System and Poultry House Ventilation Method
　本発明は、鶏舎換気システム及び鶏舎換気方法に関するものである。 The present invention relates to a poultry house ventilation system and a poultry house ventilation method.
　従来の密閉型鶏舎（ウインドレス鶏舎）で行われている換気制御は、例えば特許文献１、２に示すように、鶏舎内の鶏が生物として求める必要換気量、及び生存に快適である均一な鶏舎内温度等を目指して様々な工夫がなされている。 Ventilation control performed in a conventional closed poultry house (windowless poultry house), for example, as shown in Patent Documents 1 and 2, is a uniform amount of ventilation required by chickens in the poultry house as organisms and comfortable for survival. Various measures have been taken with the aim of controlling the temperature inside the poultry house.
特開平９－１０２号公報JP-A-9-102 特開２００８－１４８５６７号公報JP 2008-148567 A
　ところで、鳥インフルエンザウイルスなどの感染性ウイルスやダニ等の寄生虫による被害は近年特に増加しており、高密度養鶏が進んできた養鶏産業に大きな打撃を与えている。また、これらの感染症ウイルスや寄生虫等は、チリ、ホコリ、羽毛等と共に浮遊したりまた付着したりして伝播することが知られている。 By the way, the damage caused by infectious viruses such as avian influenza virus and parasites such as ticks has increased in particular in recent years, giving a big blow to the poultry industry, which has advanced high-density poultry farming. In addition, it is known that these infectious disease viruses, parasites, and the like are spread by floating or adhering together with dust, dust, feathers, and the like.
　しかしながら、従来の密閉型鶏舎の換気制御では、上述したとおり、鶏舎内温度の平準化と鶏舎内の鶏の生存に必要な最低必要換気量を満たす換気制御が中心である。このため、鶏舎内の空気淀みや旋回流等がもたらすチリ、ホコリや羽毛等の集合に対する排除制御が十分ではなく、寄生虫や感染症ウイルス等への対策が不十分となっている。なお、これらの問題は、例えばカーテンを自動又は手動で開閉可能な壁面を有する半密閉型鶏舎や開放型鶏舎等において、換気ファン等の換気設備を制御して鶏舎内温度の均一化等を行っている鶏舎にも同様に生じうる。また、自然換気であっても同じである。 However, as mentioned above, ventilation control for conventional closed poultry houses focuses on leveling the temperature inside the poultry house and satisfying the minimum required ventilation volume necessary for the survival of chickens in the poultry house. For this reason, there is insufficient control to remove dust, dust, feathers, and the like caused by air stagnation and swirling currents in the poultry house, and countermeasures against parasites, infectious viruses, and the like are inadequate. These problems can be solved by controlling ventilation equipment such as ventilation fans to equalize the temperature inside the poultry house, for example, in a semi-enclosed poultry house or an open poultry house with walls that can open and close curtains automatically or manually. It can also occur in poultry houses with Moreover, it is the same even if it is natural ventilation.
　そこで、本発明は、鶏舎内部の特定箇所にチリ、ホコリや羽毛等が集合しないように鶏舎内の換気制御をすることで、鶏への寄生虫の付着や感染症ウイルスの伝播の危険を低減することを課題とするものである。 Therefore, the present invention reduces the risk of parasites adhering to chickens and the spread of infectious disease viruses by controlling the ventilation inside the poultry house so that dust, dust, feathers, etc. do not gather in specific places inside the poultry house. The task is to
　すなわち、本発明に係る鶏舎換気システムは、鶏舎に設けられた例えば入気ファン、排気ファン、空気導入口等の換気設備と、前記換気設備を制御する制御装置を備え、前記制御装置は、前記鶏舎内の特定箇所に所定時間以上一定の空気の淀み又は旋回流が発生しないように前記換気設備を制御することを特徴とする。 That is, the poultry house ventilation system according to the present invention includes ventilation equipment such as an inlet fan, an exhaust fan, and an air inlet provided in the poultry house, and a control device for controlling the ventilation equipment. It is characterized by controlling the ventilation equipment so that a certain amount of stagnation or swirling air does not occur at a specific location in the poultry house for a predetermined time or longer.
　この鶏舎換気システムであれば、鶏舎内の特定箇所に所定時間以上一定の空気の淀み又は旋回流が発生しないように換気設備を制御するので、鶏舎内部の特定箇所にチリ、ホコリや羽毛等が集合しないようにできる。これにより、鶏舎内部の特定箇所に寄生虫や鳥インフルエンザウイルス等の感染症ウイルスが集合することを防止できる。その結果、寄生虫が鶏に寄生する可能性を減じることができ、また鶏が鳥インフルエンザウイルス等の感染症ウイルスに感染するリスクを低減できる。 With this poultry house ventilation system, the ventilation equipment is controlled so that a certain amount of air stagnation or swirl flow does not occur in specific locations in the poultry house for more than a predetermined period of time. You can avoid gathering. As a result, it is possible to prevent parasites and infectious disease viruses such as avian influenza virus from gathering at specific locations inside the poultry house. As a result, it is possible to reduce the possibility of parasitic parasites infesting chickens, and to reduce the risk of chickens being infected with infectious disease viruses such as avian influenza virus.
　具体的に本発明では、制御装置に内蔵されたタイマーや外付けの時間計測部等により鶏舎内の空気流が所定時間一定であると判断した場合に、換気設備の起動や停止、換気設備の送風量や風向等を変化させる、あるいは、換気設備の外気導入口の開度や入気方向等を変化させるようにする。これにより、本発明では特定箇所に所定時間以上一定の空気の淀みや旋回流が発生しなくなり、寄生虫や感染症ウイルス等が特定箇所に滞在または集合することを防ぐことができる。 Specifically, in the present invention, when it is determined that the air flow in the poultry house is constant for a predetermined time by a timer built into the control device or an external time measuring unit, etc., the ventilation equipment is started or stopped. The amount of air blown, the direction of the wind, etc. are changed, or the opening of the outside air intake port of the ventilation equipment, the direction of the air intake, etc. are changed. As a result, according to the present invention, air stagnation and swirl flow do not occur at specific locations for a predetermined time or longer, and it is possible to prevent parasites, infectious viruses, and the like from staying or gathering at specific locations.
　空気流が所定時間一定にならないように換気設備を制御する具体的な実施の態様としては、前記制御装置は、経過時間、前記鶏舎内の湿度、前記鶏舎内の空気質又は前記鶏舎内の風の状態の少なくとも１つに基づいて前記換気設備の制御を変更して前記空気流を変化させることが望ましい。また、上記パラメータに加えて、前記鶏舎内の温度を組み合わせて用いても良い。
　ここで、「鶏舎内の空気質」とは、鶏舎内の空気に含まれるガス成分（例えば二酸化炭素（ＣＯ２）、酸素（Ｏ２）等）の濃度や量、または鶏舎内の空気に含まれる塵埃、ダニや羽毛等の量を含む概念である。「鶏舎内の湿度や鶏舎内の空気質に基づく」とは、鶏舎内の湿度、空気質や風の状態を計測するセンサにより得られた計測値、または、それらの経時変化又は変化量に基づくことも含む。また、「鶏舎内の風の状態」とは、風向きや風速、あるいはそれらの経時変化又は変化量を含む。
　つまり、前記制御装置は、経過時間に基づいて前記換気設備の制御を変更して前記空気流を変化させる構成としても良いし、鶏舎内の状態（例えば温度、湿度、空気質、風速や風向等）又はそれらの経時変化又は変化量に基づいて前記換気設備の制御を変更して前記空気流を変化させる構成としても良い。 As a specific embodiment of controlling the ventilation equipment so that the air flow is not constant for a predetermined time, the control device controls the elapsed time, the humidity in the poultry house, the air quality in the poultry house, or the wind in the poultry house It is desirable to alter the control of the ventilation facility to vary the airflow based on at least one of the conditions of. In addition to the above parameters, the temperature inside the poultry house may be used in combination.
Here, the “air quality in the poultry house” refers to the concentration or amount of gas components (e.g., carbon dioxide (CO 2 ), oxygen (O 2 ), etc.) contained in the air in the poultry house, or the air quality in the poultry house. This concept includes the amount of dust, mites, feathers, etc. "Based on the humidity and air quality in the poultry house" means the measured values obtained by sensors that measure the humidity, air quality and wind conditions in the poultry house, or their changes over time or the amount of change. including. In addition, the "condition of the wind in the poultry house" includes wind direction and wind speed, or their changes over time or the amount of change.
In other words, the control device may be configured to change the airflow by changing the control of the ventilation equipment based on the elapsed time, and the conditions in the poultry house (for example, temperature, humidity, air quality, wind speed, wind direction, etc.) ) or change the air flow by changing the control of the ventilation equipment based on the change over time or the amount of change.
　例えば、前記制御装置は、前記鶏舎の換気に関わる前記換気設備の制御が所定時間同一の状態となっている場合に前記換気設備の制御を変更して前記鶏舎内に形成される空気流を変化させることが望ましい。この構成であれば、鶏舎内の状態を計測するセンサを用いることなく、空気流を変化させることができる。また、時間制御のため、予めスケジュールに合わせて空気流を変化させることができる。 For example, when the control of the ventilation equipment related to the ventilation of the poultry house remains the same for a predetermined time, the control device changes the control of the ventilation equipment to change the air flow formed in the poultry house. It is desirable to With this configuration, the airflow can be changed without using a sensor for measuring the conditions inside the poultry house. Also, due to the time control, the airflow can be varied in advance according to the schedule.
　前記換気設備は、前記換気設備は、前記鶏舎の妻壁に設けられた複数の換気ファンを有し、前記制御装置は、前記換気ファンの回転速度、稼働させる前記換気ファンの台数、稼働させる前記換気ファンの組み合わせを変更することにより、前記鶏舎内に形成される空気流を変化させることが望ましい。
　この構成であれば、鶏舎の内部に形成される空気流のパターンを種々変更することができ、鶏舎の内部に生じる空気の淀みや旋回流等の発生場所を変動させたり解消したりすることができる。 The ventilation equipment has a plurality of ventilation fans provided on the gable wall of the poultry house, and the control device controls the rotation speed of the ventilation fan, the number of ventilation fans to be operated, and the number of ventilation fans to be operated. It is desirable to change the airflow created within the house by changing the combination of ventilation fans.
With this configuration, it is possible to variously change the pattern of the air flow formed inside the poultry house, and it is possible to change or eliminate the occurrence locations of air stagnation, swirl flow, etc. occurring inside the poultry house. can.
　通常、鶏舎内の空気を均一に換気するためには、前記換気設備は、前記妻壁において前記妻面の上下に延びる中心線に対して左右対称に設けられた複数の換気ファンを有していることが考えられる。そして、これら複数の換気ファンを中心軸に対して左右対称に稼働することが一般的である。 Usually, in order to uniformly ventilate the air in the poultry house, the ventilation equipment has a plurality of ventilation fans that are provided on the gable wall symmetrically with respect to the center line that extends vertically on the gable surface. It is conceivable that there are In general, these ventilation fans are operated symmetrically with respect to the central axis.
　本発明では、鶏舎内の特定箇所に所定時間以上一定の空気の淀み又は旋回流が発生しないようにするという目的を有しており、この目的を好適に達成するために、前記制御装置は、前記妻壁の上下に延びる中心線に対して、稼働させる前記換気ファンが左右非対称となるように変更することにより、前記鶏舎内に形成される空気流を変化させる。例えば、妻壁の上下に延びる中心線に対して、稼働する換気ファンの台数を左右で異ならせることや、稼働する換気ファンの位置を左右で異ならせること等が考えられる。また、妻壁の上下に延びる中心線に対して、右側のみ又は左側のみを稼働させることも考えられる。 The present invention has the object of preventing the occurrence of constant air stagnation or swirling flow at specific locations in the poultry house for a predetermined time or longer. The air flow formed in the poultry house is changed by changing the ventilation fan to be operated so as to be left-right asymmetric with respect to the center line extending vertically of the gable wall. For example, it is conceivable to vary the number of operating ventilation fans on the left and right sides of the center line extending vertically from the gable wall, or to vary the positions of the operating ventilation fans on the left and right sides. It is also conceivable to operate only the right side or only the left side with respect to the center line extending up and down of the gable wall.
　また、前記換気設備が、前記鶏舎の一方の妻壁に設けられた複数の換気ファンと、前記鶏舎の他方の妻壁又は桁壁に設けられた空気導入口又は空気導出口となる開口部とを有する構成の場合には、前記制御装置は、前記鶏舎の内部の空気を急速に入れ替えるために、前記開口部の開度を例えば全開などに大きくするとともに、前記複数の換気ファンの過半数を一斉に動作させることも有益である。この換気制御による運転パターンの変更でチリやホコリ、羽毛等の濃度の高い空気塊が破壊され、それらが分散しまたは鶏舎の外部へ排出されることが期待できる。 In addition, the ventilation equipment includes a plurality of ventilation fans provided on one gable wall of the poultry house and an opening serving as an air inlet or an air outlet provided on the other gable wall or girder wall of the poultry house. In the case of the configuration having It is also beneficial to operate It can be expected that by changing the operation pattern by this ventilation control, air masses with high concentrations of dust, dust, feathers, etc. will be destroyed, and they will be dispersed or discharged to the outside of the poultry house.
　また、本発明に係る鶏舎換気方法は、鶏舎に設けられた換気設備を用いた鶏舎換気方法であって、前記鶏舎内の特定箇所に所定時間以上一定の空気の淀み又は旋回流が発生しないように前記換気設備を制御することを特徴とする。 In addition, the poultry house ventilation method according to the present invention is a poultry house ventilation method using ventilation equipment provided in the poultry house, wherein the poultry house ventilation method is such that a certain amount of air stagnation or swirl flow does not occur at a specific location in the poultry house for a predetermined time or longer. and controlling the ventilation equipment at the same time.
　このように構成した本発明によれば、鶏舎内部の特定箇所にチリ、ホコリや羽毛等が集合しないように鶏舎内の換気制御をすることで、鶏への寄生虫の付着や感染症ウイルスの伝播の危険を低減することができる。 According to the present invention configured in this way, by controlling the ventilation inside the poultry house so that dust, dust, feathers, etc. do not gather in specific places inside the poultry house, parasites adhere to chickens and infectious disease viruses are prevented. Risk of transmission can be reduced.
本発明の一実施形態に係る鶏舎換気システムの構成を模式的に示す平面図である。1 is a plan view schematically showing the configuration of a poultry house ventilation system according to an embodiment of the present invention; FIG. 同実施形態の鶏舎換気システムの構成を模式的に示す側面図である。It is a side view which shows typically the structure of the poultry house ventilation system of the same embodiment. 同実施形態の制御装置の制御内容を示す模式図である。It is a schematic diagram which shows the control content of the control apparatus of the same embodiment. 同実施形態の換気ファンの左右非対称制御におけるパターン例を示す図である。FIG. 5 is a diagram showing a pattern example in left-right asymmetric control of the ventilation fan of the same embodiment; 同実施形態の通常制御及び空気流変化制御における空気流を示すイメージ図である。FIG. 5 is an image diagram showing airflows in normal control and airflow change control of the same embodiment. 変形実施形態の鶏舎換気システムの構成を模式的に示す平面図である。FIG. 10 is a plan view schematically showing the configuration of a poultry house ventilation system according to a modified embodiment; 変形実施形態の鶏舎換気システムの構成を模式的に示す側面図である。FIG. 11 is a side view schematically showing the configuration of a poultry house ventilation system according to a modified embodiment; 変形実施形態の鶏舎換気システムの構成を模式的に示す側面図である。FIG. 11 is a side view schematically showing the configuration of a poultry house ventilation system according to a modified embodiment;
　以下に、本発明に係る鶏舎換気システムの一実施形態について、図面を参照して説明する。 An embodiment of the poultry house ventilation system according to the present invention will be described below with reference to the drawings.
　本実施形態の鶏舎換気システム１００は、密閉型鶏舎（ウインドレス鶏舎）と呼ばれる鶏舎１０の換気を行うものである。 The poultry house ventilation system 100 of this embodiment ventilates the poultry house 10 called a closed poultry house (windowless poultry house).
　ここで、鶏舎１０は、図１及び図２に示すように、４つの壁１０ａ～１０ｄに囲まれた概略直方体の建物であり、一対の妻壁１０ａ、１０ｃ及び一対の桁壁１０ｂ、１０ｄを有している。また、鶏舎１０の内部には、鶏を収容する複数のケージが一方向に沿って配置されたケージ列２０が設けられている。図１では、複数（ここでは３つ）のケージ列２０が設けられた例を示している。なお、鶏舎１０の内部には、複数のケージ列２０が妻方向（短手方向）において左右対称に配置されており、また、複数のケージ列２０が桁方向（長手方向）に列状に配置されている。 Here, as shown in FIGS. 1 and 2, the poultry house 10 is a substantially rectangular parallelepiped building surrounded by four walls 10a to 10d. have. Further, inside the poultry house 10, there is provided a cage row 20 in which a plurality of cages for housing chickens are arranged along one direction. FIG. 1 shows an example in which a plurality (here, three) of cage rows 20 are provided. Inside the poultry house 10, a plurality of cage rows 20 are arranged symmetrically in the gable direction (lateral direction), and the plurality of cage rows 20 are arranged in a row in the girder direction (longitudinal direction). It is
　具体的に鶏舎換気システム１００は、図１及び図２に示すように、鶏舎１０に設けられた換気設備２と、換気設備２を制御する制御装置３とを備えている。 Specifically, the poultry house ventilation system 100 includes a ventilation facility 2 provided in the poultry house 10 and a control device 3 that controls the ventilation facility 2, as shown in FIGS.
　換気設備２は、鶏舎１０の内部と外部とを仕切る仕切壁（壁１０ａ～１０ｄのいずれか）に設けられた開閉可能な１又は複数の開口部２１と、鶏舎１０の内部と外部とを仕切る仕切壁（壁１０ａ～１０ｄのいずれか）に設けられた１又は複数の換気ファン２２を有している。 The ventilation equipment 2 partitions the inside and the outside of the poultry house 10 with one or more openings 21 that can be opened and closed provided in the partition wall (any of the walls 10a to 10d) that separates the inside and the outside of the poultry house 10. It has one or more ventilation fans 22 provided on the partition wall (one of the walls 10a to 10d).
　本実施形態の開口部２１は、鶏舎１０におけるケージ列２０に直交する妻壁１０ａ、１０ｃの一方（ここでは妻壁１０ａ）及びケージ列２０に沿った桁壁１０ｂ、１０ｄに設けられている。複数の開口部２１を設ける場合には、それら開口部２１を設ける位置は、適宜設定することができ、例えば、壁１０ａ、１０ｂ、１０ｄにおいて上下に配置しても良いし、左右に配置しても良いし、対角線上に配置しても良い。 The openings 21 of this embodiment are provided in one of the gable walls 10a and 10c (here, the gable wall 10a) perpendicular to the cage row 20 in the poultry house 10 and the girder walls 10b and 10d along the cage row 20. When a plurality of openings 21 are provided, the positions at which the openings 21 are provided can be set as appropriate. or diagonally.
　また、本実施形態の換気ファン２２は、鶏舎１０の内部から外部に空気を排気する排気ファンであり、これにより鶏舎換気システム１００は、鶏舎１０を陰圧換気するものとなる。換気ファン２２は、鶏舎１０におけるケージ列２０に直交する妻壁１０ａ、１０ｃの他方（ここでは妻壁１０ｃ）に複数設けられている。複数の換気ファン２２を設ける場合には、それら換気ファン２２は、妻壁１０ｃにおいて妻壁１０ｃの上下に延びる中心線に対して左右対称に設けることが考えられる。その他、複数の換気ファン２２を設ける位置は、適宜設定することができ、例えば、妻壁１０ｃにおいて上下に配置しても良いし、左右に配置しても良いし、対角線上に配置しても良い。また、換気ファン２２は、鶏舎１０におけるケージ列２０に沿った桁壁１０ｂ、１０ｄに設けても良い。 In addition, the ventilation fan 22 of this embodiment is an exhaust fan that exhausts air from the inside of the poultry house 10 to the outside. A plurality of ventilation fans 22 are provided on the other of the gable walls 10a and 10c (here, the gable wall 10c) perpendicular to the row of cages 20 in the poultry house 10. As shown in FIG. When a plurality of ventilation fans 22 are provided, it is conceivable that the ventilation fans 22 are provided on the end wall 10c symmetrically with respect to the center line extending vertically from the end wall 10c. In addition, the positions at which the plurality of ventilation fans 22 are provided can be set as appropriate. For example, they may be arranged vertically, horizontally, or diagonally on the gable wall 10c. good. Also, the ventilation fan 22 may be provided on the girder walls 10b and 10d along the row of cages 20 in the poultry house 10. FIG.
　ここで、排気ファン２２を起動することにより、上記の開口部２１は、鶏舎１０の外部から内部に空気を導入する空気導入口として機能することができる。なお、上記開口部２１とは別に空気導入口を設けても良い。 Here, by activating the exhaust fan 22, the opening 21 can function as an air inlet for introducing air from the outside of the poultry house 10 to the inside. An air introduction port may be provided separately from the opening 21 .
　なお、換気ファン２２は、鶏舎１０の外部から内部に空気を供給する吸気ファン（入気ファン）であってもよく、この場合には、鶏舎換気システム１００は、鶏舎１０を陽圧換気するものとなる。ここで、吸気ファン２２を起動することにより、上記の開口部２１は、鶏舎１０の内部から外部に空気を導出する空気導出口として機能することができる。なお、上記開口部２１とは別に空気導出口を設けても良い。 The ventilation fan 22 may be an intake fan (intake fan) that supplies air from the outside of the poultry house 10 to the inside. In this case, the poultry house ventilation system 100 performs positive pressure ventilation of the poultry house 10. becomes. Here, by activating the intake fan 22, the opening 21 can function as an air outlet for introducing air from the inside of the poultry house 10 to the outside. In addition, an air outlet may be provided separately from the opening 21 .
　そして、制御装置３は、換気設備２により鶏舎１０の内部に形成される空気流が所定時間一定にならないように、つまり、鶏舎１０内の特定箇所に所定時間以上一定の空気の淀み又は旋回流が発生しないように換気設備２を制御するものである。具体的に制御装置３は、経過時間、鶏舎１０内の湿度、鶏舎１０内の空気質、鶏舎１０内の風の状態（風速や風向等）の少なくとも１つに基づいて、換気設備２の制御を変更して空気流を変化させる。ここで、鶏舎内の空気質は、鶏舎１０内の空気に含まれるガス成分（例えば二酸化炭素（ＣＯ２）、酸素（Ｏ２）等）の濃度や量、または鶏舎１０内の空気に含まれる塵埃、ダニや羽毛等である。 Then, the control device 3 prevents the air flow formed inside the poultry house 10 by the ventilation equipment 2 from becoming constant for a predetermined period of time. is to control the ventilation equipment 2 so as not to generate Specifically, the control device 3 controls the ventilation equipment 2 based on at least one of the elapsed time, the humidity in the poultry house 10, the air quality in the poultry house 10, and the state of the wind in the poultry house 10 (wind speed, wind direction, etc.). to change the airflow. Here, the air quality in the poultry house refers to the concentration or amount of gas components (e.g., carbon dioxide (CO 2 ), oxygen (O 2 ), etc.) contained in the air in the poultry house 10, or the air in the poultry house 10. Dust, mites, feathers, etc.
　また、制御装置３は、換気設備２の制御を変更するトリガーとして、以下の（１）～（５）の少なくとも１つ（複数の場合はそれらの組み合わせ（ＡＮＤ条件であっても良いし、ＯＲ条件であっても良い。））を用いることができる。
（１）経過時間
　この場合、制御装置３に内蔵されたタイマーや外付けの時間計測部の計測時間を用いる。
（２）鶏舎内の温度、温度の経時変化、変化量または変化率等
　この場合、鶏舎１０の内部に設けられた温度センサの検出温度を用いる。
（３）鶏舎内の湿度、この湿度の経時変化、変化量または変化率等
　この場合、鶏舎１０の内部に設けられた湿度センサの検出湿度を用いる。
（４）鶏舎内の空気質（例えばＣＯ２やＯ２等）の濃度または量、それらの経時変化、変化量または変化率等
　この場合、鶏舎１０の内部に設けた濃度センサ等のセンサの検出濃度（量）を用いる。
（５）鶏舎内の風速または風向、それらの経時変化、変化量または変化率等
　この場合、鶏舎１０の内部に設けられた風速計等のセンサの検出風速（風向）を用いる。 In addition, the control device 3 uses at least one of the following (1) to (5) as a trigger to change the control of the ventilation equipment 2 (in the case of a plurality, a combination thereof (AND conditions may be used, OR It may be a condition.)) can be used.
(1) Elapsed time In this case, the timer built into the control device 3 or the measured time of an external time measuring unit is used.
(2) Temperature inside the poultry house, change over time, amount of change, rate of change, etc. In this case, the temperature detected by the temperature sensor provided inside the poultry house 10 is used.
(3) Humidity inside the poultry house, temporal change, amount of change, rate of change, etc. of this humidity In this case, the humidity detected by the humidity sensor provided inside the poultry house 10 is used.
(4) Concentration or amount of air quality (e.g., CO2 , O2, etc.) in the poultry house, changes over time, amount of change, rate of change, etc. In this case, detection of a sensor such as a concentration sensor provided inside the poultry house 10 Concentration (quantity) is used.
(5) Wind speed or wind direction in the poultry house, changes over time, amount of change, rate of change, etc. In this case, the wind speed (wind direction) detected by a sensor such as an anemometer provided inside the poultry house 10 is used.
　このように制御装置３は、経過時間に基づいて換気設備２の制御を変更して空気流を変化させる構成としても良いし、鶏舎１０内の状態（例えば温度、湿度、空気質、風速や風向等）、それらの経時変化又は変化量等に基づいて換気設備２の制御を変更して空気流を変化させる構成としても良い。 In this way, the control device 3 may be configured to change the airflow by changing the control of the ventilation equipment 2 based on the elapsed time, and the conditions inside the poultry house 10 (for example, temperature, humidity, air quality, wind speed and wind direction) etc.), the air flow may be changed by changing the control of the ventilation equipment 2 based on the change over time or the amount of change.
　本実施形態の制御装置３は、鶏舎１０の換気に関わる換気設備２の制御が所定時間同一の状態となっている場合、つまり経過時間に基づいて換気設備２の制御を変更して空気流を変化させる構成としている。 The control device 3 of the present embodiment changes the control of the ventilation equipment 2 based on the elapsed time when the control of the ventilation equipment 2 related to the ventilation of the poultry house 10 is in the same state for a predetermined time, to increase the airflow. It is configured to change.
　制御装置３は、例えばＣＰＵ、メモリ、Ａ／Ｄ・Ｄ／Ａコンバータ、入出力手段を具備するいわゆるコンピュータであって、メモリに格納されている換気制御プログラムが実行されて各種機器が協働することにより、以下に説明する機能を発揮する。 The control device 3 is, for example, a so-called computer having a CPU, a memory, an A/D/D/A converter, and an input/output means. As a result, the functions described below are exhibited.
　具体的に制御装置３は、開口部２１を開閉する又はその開口面積を変更することにより、又は、換気ファン２２の回転速度、稼働させる換気ファン２２の台数、稼働させる換気ファン２２の組み合わせを変更することにより、鶏舎１０の内部に形成される空気流を所定時間経過する毎に変化させる。 Specifically, the control device 3 opens and closes the opening 21 or changes its opening area, or changes the rotation speed of the ventilation fan 22, the number of the ventilation fans 22 to be operated, or the combination of the ventilation fans 22 to be operated. By doing so, the air flow formed inside the poultry house 10 is changed each time a predetermined time elapses.
　ここで、制御装置３は、図３に示すように、鶏舎１０内の鶏が生物として求める必要換気量、及び生存に快適である均一な鶏舎内温度となるように制御する通常制御を基本とし、この通常制御の合間に予め定められたタイミングで、鶏舎１０の内部に形成される空気流を変化させるべく、通常制御の制御パターンとは異なる制御パターンの空気流変化制御を行う。なお、前記タイミングは、一定周期であっても良いし、鶏舎内温度が所定の閾値を上回った場合又は下回った場合であっても良いし、その他、種々のパラメータを用いて定めることができる。 Here, as shown in FIG. 3, the control device 3 is based on normal control for controlling the amount of ventilation required by the chickens in the poultry house 10 as living organisms and the uniform temperature inside the poultry house that is comfortable for survival. At a predetermined timing between these normal controls, airflow change control is performed with a control pattern different from the control pattern of normal control in order to change the airflow formed inside the poultry house 10 . The timing may be a constant period, a time when the temperature in the poultry house exceeds or falls below a predetermined threshold value, or may be determined using various other parameters.
　空気流変化制御を行う場合には、鶏が生物として求める必要換気量、及び生存に快適である均一な鶏舎内温度に関わらず、通常制御で制御されている換気設備２の状態を強制的に変化させて空気流を不均一とする。この空気流変化制御を継続する時間は、鶏の生存に影響のない程度、又は、その後の通常制御において所望の必要換気量及び所望の鶏舎内温度に戻しやすい程度において、適宜設定することができる。また、各空気流変化制は、互いに同じ継続時間としても良いし、互いに異なる継続時間としても良い。 When performing airflow change control, regardless of the necessary ventilation volume required by chickens as living organisms and the uniform temperature inside the poultry house that is comfortable for survival, the state of the ventilation equipment 2 that is normally controlled is forcibly changed. Vary to create non-uniform airflow. The time for which this airflow change control is continued can be appropriately set to the extent that it does not affect the survival of the chickens, or to the extent that it is easy to return to the desired ventilation volume and the desired poultry house temperature in the subsequent normal control. . Further, each airflow change system may have the same duration time, or may have different duration time.
　例えば、通常制御において開口部２１が閉塞されている場合には、空気流変化制御において開口部２１を開放し、また、通常制御において開口部２１が開放されている場合には、空気流変化制御において開口部２１を閉塞したり、その開口面積を変化させたりする。なお、空気流変化制御中において開口面積を連続的又は段階的に変化させても良い。 For example, when the opening 21 is closed in normal control, the opening 21 is opened in the airflow change control, and when the opening 21 is open in the normal control, the airflow change control , the opening 21 is closed or its opening area is changed. Note that the opening area may be changed continuously or stepwise during the airflow change control.
　また、換気ファン２２の回転速度、稼働させる換気ファン２２の台数、稼働させる換気ファン２２の組み合わせを通常制御と空気流変化制御とで変更する。空気流変化制御は、鶏舎１０の内部に形成されるチリ、ホコリや羽毛等の集合に対する排除制御である。なお、空気流変化制御中において、換気ファン２２の回転速度を連続的又は段階的に変化させても良いし、稼働させる換気ファン２２の台数、稼働させる換気ファン２２の組み合わせを変更しても良い。 In addition, the rotational speed of the ventilation fans 22, the number of the ventilation fans 22 to be operated, and the combination of the ventilation fans 22 to be operated are changed between normal control and airflow change control. The airflow change control is control for removing dust, dust, feathers, and the like formed inside the poultry house 10 . During the airflow change control, the rotation speed of the ventilation fans 22 may be changed continuously or stepwise, or the number of the ventilation fans 22 to be operated and the combination of the ventilation fans 22 to be operated may be changed. .
　特に、稼働させる換気ファン２２の組み合わせを変更する場合には、図４に示すように、妻壁１０ｃの上下に延びる中心線Ｘに対して、稼働させる換気ファン２２が左右非対称となるように変更する（左右非対称制御）。なお、図４には、左右非対称制御として３パターンを示しているが、左右非対称制御であれば、これら以外であっても良い。 In particular, when changing the combination of the ventilation fans 22 to be operated, as shown in FIG. (left-right asymmetric control). Although FIG. 4 shows three patterns of left-right asymmetric control, other patterns may be used as long as left-right asymmetric control is performed.
　また、開放する開口部２１の組み合わせを変更してもよく、この場合、妻壁１０ａの上下に延びる中心線Ｘに対して、開放する開口部２１が左右非対称となるように変更することも考えられる。 Also, the combination of the openings 21 to be opened may be changed. In this case, it is also possible to change the openings 21 to be left-right asymmetric with respect to the center line X extending vertically of the end wall 10a. be done.
　図５に通常制御の制御パターンにおける空気流と空気流変化制御の制御パターンにおける空気流との状態を示している。 FIG. 5 shows the state of the airflow in the control pattern of normal control and the airflow in the control pattern of airflow change control.
　ここで、図５（ａ）は、通常制御における空気流の定常状態のイメージ図であり、複数の換気ファン２２全てを稼働した制御パターンにおける状態である。 Here, FIG. 5(a) is an image diagram of the steady state of the airflow in normal control, which is the state in the control pattern in which all the plurality of ventilation fans 22 are in operation.
　図５（ｂ）は、複数の換気ファン２２全てを稼働した状態で、複数の開口部２１の開度を例えば全開などに大きくした空気流変化制御の制御パターンにおける空気流のイメージ図である。このとき、鶏舎１０の内部の空気を入れ替えるために、複数の換気ファン２２の過半数を一斉に動作させるとともに、複数の換気ファン２２の回転速度を増加させる制御パターンとして、鶏舎１０を通過する空気流の流量を増大しても良い。 FIG. 5(b) is an image diagram of airflow in a control pattern of airflow change control in which the opening degrees of the plurality of openings 21 are increased, for example, to full opening, while all of the plurality of ventilation fans 22 are in operation. At this time, in order to replace the air inside the poultry house 10, the majority of the plurality of ventilation fans 22 are operated all at once, and the air flow passing through the poultry house 10 is set as a control pattern for increasing the rotation speed of the plurality of ventilation fans 22. may be increased.
　また、図５（ｃ）は、稼働する換気ファン２２の組み合わせを左右非対称となるように変更した空気流変化制御の制御パターンにおける空気流のイメージ図である。このとき、複数の開口部２１を例えば全開する制御パターンとしても良い。 Also, FIG. 5(c) is an image diagram of the airflow in the control pattern of the airflow change control in which the combination of the ventilation fans 22 to be operated is changed so as to be left-right asymmetric. At this time, for example, the control pattern may be such that the plurality of openings 21 are fully opened.
　図５に示すように、通常制御において定常状態にある空気流が、空気流変化制御の制御パターンによる換気設備２の動作パターンの変化によって変化し、通常制御において生じている空気の淀みや旋回流を解消することができる。 As shown in FIG. 5, the airflow in a steady state under normal control changes due to changes in the operation pattern of the ventilation equipment 2 due to the control pattern of the airflow change control, and the air stagnation and swirl flow that occur under normal control. can be resolved.
＜本実施形態の効果＞
　本実施形態の鶏舎換気システム１００によれば、鶏舎１０内の特定箇所に所定時間以上一定の空気の淀み又は旋回流が発生しないように換気設備を制御するので、鶏舎１０の内部に生じる空気の淀みや旋回流等の発生場所を変動させたり解消したりすることができ、チリ、ホコリや羽毛等が集合しないようにできる。これにより、鶏舎１０の内部の特定箇所に寄生虫や鳥インフルエンザウイルス等の感染症ウイルスが集合することを防止できる。その結果、寄生虫が鶏に寄生する可能性を減じることができ、また鶏が鳥インフルエンザウイルス等の感染症ウイルスに感染するリスクを低減できる。 <Effects of this embodiment>
According to the poultry house ventilation system 100 of the present embodiment, the ventilation equipment is controlled so that a certain amount of air stagnation or swirling flow does not occur at a specific location in the poultry house 10 for a predetermined time or longer. It is possible to change or eliminate the occurrence place of stagnation, swirling flow, etc., and prevent dust, feathers, etc. from gathering. As a result, it is possible to prevent parasites and infectious disease viruses such as avian influenza virus from congregating at specific locations inside the poultry house 10 . As a result, it is possible to reduce the possibility of parasitic parasites infesting chickens, and to reduce the risk of chickens being infected with infectious disease viruses such as avian influenza virus.
　特に本実施形態では、妻壁１０ｃの上下に延びる中心線に対して、稼働させる換気ファン２２が左右非対称となるように変更しているので、鶏舎内の特定箇所に発生した空気の淀み又は旋回流を効率よく解消することができる。 Especially in this embodiment, since the ventilation fan 22 to be operated is changed so as to be left-right asymmetric with respect to the center line extending vertically of the gable wall 10c, the stagnation or swirling of the air generated at a specific location in the poultry house is prevented. flow can be effectively eliminated.
＜本発明の変形実施形態＞
　なお、本発明は前記実施形態に限られるものではない。 <Modified embodiment of the present invention>
It should be noted that the present invention is not limited to the above embodiments.
　例えば、図６に示すように、換気設備２は、鶏舎１０の内部に設けられ、空気流を撹拌する撹拌ファン２３を有していても良い。この場合、制御装置３は、撹拌ファン２３を制御することにより空気流を変化させる。ここで、撹拌ファン２３は、通常制御で生じる空気の淀みや旋回流等の発生部分に向けて、空気を送風して撹拌することが望ましい。また、撹拌ファン２３は、首振り機能を有し、送風方向が変更可能であることが望ましい。なお、撹拌ファン２３は、前記実施形態の構成に加えて、又は、前記実施形態の構成に代えて設けることができる。 For example, as shown in FIG. 6, the ventilation equipment 2 may have a stirring fan 23 that is provided inside the poultry house 10 and stirs the airflow. In this case, the control device 3 changes the airflow by controlling the stirring fan 23 . Here, it is desirable that the agitating fan 23 blows and agitates the air toward the portion where air stagnation, swirling flow, or the like that occurs in normal control occurs. In addition, it is desirable that the stirring fan 23 has an oscillating function and that the blowing direction can be changed. Note that the stirring fan 23 can be provided in addition to the configuration of the above embodiment or in place of the configuration of the above embodiment.
　また、図７に示すように、換気設備２は、鶏舎１０の内部に設けられ、開閉可能な１又は複数の給気口又は排気口を有するダクト２４を有していても良い。この場合、制御装置３は、１又は複数の給気口又は排気口を開閉する又はその開口面積を変更することにより空気流を変化させる。なお、ダクト２４は、前記実施形態の構成に加えて、又は、前記実施形態の構成に代えて設けることができる。 Further, as shown in FIG. 7, the ventilation equipment 2 may have a duct 24 provided inside the poultry house 10 and having one or a plurality of openable/closable air supply ports or exhaust ports. In this case, the control device 3 changes the airflow by opening or closing one or more air supply ports or exhaust ports or by changing the opening area thereof. Note that the duct 24 can be provided in addition to the configuration of the above embodiment, or instead of the configuration of the above embodiment.
　さらに、図８に示すように、換気設備２は、鶏舎１０の内部に設けられた空気整流板２５を有していても良い。この空気整流板２５によって、所望の空気流を形成することができる。また、空気整流板２５の角度や向き等の姿勢を変更することにより、空気流を変化させることができる。なお、空気整流板２５は、前記実施形態の構成に加えて、又は、前記実施形態の構成に代えて設けることができる。 Furthermore, as shown in FIG. 8, the ventilation equipment 2 may have an air current plate 25 provided inside the poultry house 10 . A desired air flow can be formed by the air straightening plate 25 . Further, by changing the posture such as the angle and direction of the air current plate 25, the air flow can be changed. Incidentally, the air rectifying plate 25 can be provided in addition to the configuration of the above embodiment or instead of the configuration of the above embodiment.
　加えて、本発明は、鶏舎内の湿度、空気質、風速、風向等さまざまな要素を計測して、換気設備の制御変更をすることが可能である。ここで、計測値の経時変化又は変化量などをその制御変更に利用することも可能である。例えば風速、風向が微細な変化しか示さない場合は、鶏舎内の空気流が定常状態であることが推測され、この場合に、前記実施形態のような空気流変化制御を行うことができる。 In addition, the present invention can measure various factors such as humidity, air quality, wind speed, and wind direction inside the poultry house to change the control of the ventilation equipment. Here, it is also possible to use the change over time or the amount of change of the measured value for the control change. For example, when the wind speed and wind direction show only minute changes, it can be assumed that the airflow in the poultry house is in a steady state, and in this case, the airflow change control as in the above embodiment can be performed.
　その上、本発明は、密閉型鶏舎（ウインドレス鶏舎）に限られず、例えばカーテンを自動又は手動で開閉可能な壁面を有する半密閉型鶏舎や開放型鶏舎等の他のタイプの鶏舎において、換気ファン等の換気設備を制御して鶏舎内温度の均一化等を行っている鶏舎にも適用することができる。 In addition, the present invention is not limited to closed poultry houses (windowless poultry houses), and can be used in other types of poultry houses such as semi-closed poultry houses and open poultry houses that have wall surfaces in which curtains can be opened and closed automatically or manually. It can also be applied to a poultry house in which ventilation equipment such as a fan is controlled to equalize the temperature inside the poultry house.
　その他、本発明は前記実施形態に限られず、その趣旨を逸脱しない範囲で種々の変形が可能であるのは言うまでもない。 In addition, it goes without saying that the present invention is not limited to the above-described embodiments, and that various modifications are possible without departing from the spirit of the present invention.
　本発明によれば、鶏舎内部の特定箇所にチリ、ホコリや羽毛等が集合しないように鶏舎内の換気制御をすることで、鶏への寄生虫の付着や感染症ウイルスの伝播の危険を低減することができる。 According to the present invention, by controlling the ventilation inside the poultry house so that dust, dust, feathers, etc. do not gather in specific places inside the poultry house, the risk of parasites adhering to chickens and the spread of infectious disease viruses is reduced. can do.
１００・・・鶏舎換気システム
１０　・・・鶏舎
１０ａ、１０ｃ・・・妻壁
Ｘ・・・上下に延びる中心線
１０ｂ、１０ｄ・・・桁壁
２　　・・・換気設備
３　　・・・制御装置
Ｒ　　・・・空気流
２１　・・・開口部
２２　・・・換気ファン
２３　・・・撹拌ファン
２４　・・・ダクト
２５　・・・空気整流板 100... Poultry house ventilation system 10... Poultry house 10a, 10c... End wall X... Vertically extending center line 10b, 10d... Girder wall 2... Ventilation equipment 3... Control device R ... Air flow 21 ... Opening 22 ... Ventilation fan 23 ... Stirring fan 24 ... Duct 25 ... Air current plate

Claims (7)

  1. 　鶏舎に設けられた換気設備と、
    　前記換気設備を制御する制御装置を備え、
    　前記制御装置は、前記鶏舎内の特定箇所に所定時間以上一定の空気の淀み又は旋回流が発生しないように前記換気設備を制御する、鶏舎換気システム。     Ventilation equipment installed in the poultry house,
    A control device for controlling the ventilation equipment,
    The poultry house ventilation system, wherein the control device controls the ventilation equipment so that a certain amount of stagnation or swirling air does not occur at a specific location in the poultry house for a predetermined time or longer.
  2. 　前記制御装置は、前記鶏舎の換気に関わる前記換気設備の制御が所定時間同一の状態となっている場合に前記換気設備の制御を変更して、前記鶏舎内に形成される空気流を変化させる、請求項１に記載の鶏舎換気システム。 When the control of the ventilation equipment related to the ventilation of the poultry house remains the same for a predetermined time, the control device changes the control of the ventilation equipment to change the air flow formed in the poultry house. A poultry house ventilation system according to claim 1.
  3. 　前記換気設備は、前記鶏舎の妻壁に設けられた複数の換気ファンを有し、
    　前記制御装置は、前記換気ファンの回転速度、稼働させる前記換気ファンの台数、稼働させる前記換気ファンの組み合わせを変更することにより、前記鶏舎内に形成される空気流を変化させる、請求項１に記載の鶏舎換気システム。     The ventilation equipment has a plurality of ventilation fans provided on the gable wall of the poultry house,
    2. The control device changes the airflow formed in the poultry house by changing the rotation speed of the ventilation fan, the number of the ventilation fans to be operated, and the combination of the ventilation fans to be operated. Poultry house ventilation system as described.
  4. 　前記換気設備は、前記妻壁において前記妻面の上下に延びる中心線に対して左右対称に設けられた複数の換気ファンを有している、請求項３に記載の鶏舎換気システム。 The poultry house ventilation system according to claim 3, wherein the ventilation equipment has a plurality of ventilation fans provided on the gable wall symmetrically with respect to a center line extending vertically on the gable surface.
  5. 　前記制御装置は、前記妻壁の上下に延びる中心線に対して、稼働させる前記換気ファンが左右非対称となるように変更することにより、前記鶏舎内に形成される空気流を変化させる、請求項３又は４に記載の鶏舎換気システム。 The control device changes the air flow formed in the poultry house by changing the ventilation fan to be operated so as to be left-right asymmetric with respect to the center line extending vertically of the gable wall. The poultry house ventilation system according to 3 or 4.
  6. 　前記換気設備は、前記鶏舎の一方の妻壁に設けられた複数の換気ファンと、前記鶏舎の他方の妻壁又は桁壁に設けられた開閉可能な開口部とを有し、
    　前記制御装置は、前記開口部の開度を大きくするとともに、前記複数の換気ファンの過半数を一斉に動作させることにより、前記鶏舎の内部の空気を入れ替える、請求項１に記載の鶏舎換気システム。     The ventilation equipment has a plurality of ventilation fans provided on one gable wall of the poultry house and an opening that can be opened and closed provided on the other gable wall or girder wall of the poultry house,
    2. The poultry house ventilation system according to claim 1, wherein said control device replaces the air inside said poultry house by increasing the degree of opening of said opening and simultaneously operating a majority of said plurality of ventilation fans.
  7. 　鶏舎に設けられた換気設備を用いた鶏舎換気方法であって、
    　前記鶏舎内の特定箇所に所定時間以上一定の空気の淀み又は旋回流が発生しないように前記換気設備を制御する、鶏舎換気方法。     A poultry house ventilation method using ventilation equipment provided in the poultry house,
    A poultry house ventilation method for controlling the ventilation equipment so that a certain amount of air stagnation or swirl flow does not occur at a specific location in the poultry house for a predetermined time or longer.
PCT/JP2023/003074 2022-02-01 2023-01-31 Poultry house ventilation system and poultry house ventilation method WO2023149430A1 (en)

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PCT/JP2023/003074 WO2023149430A1 (en) 2022-02-01 2023-01-31 Poultry house ventilation system and poultry house ventilation method

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427988U (en) * 1977-07-29 1979-02-23
JP2007205650A (en) * 2006-02-02 2007-08-16 Zenji Orimo Ventilator and poultry house provided therewith
JP2017181013A (en) * 2016-03-23 2017-10-05 パナソニックＩｐマネジメント株式会社 Ventilation air blowing system for livestock barn
JP2018121530A (en) * 2017-01-30 2018-08-09 パナソニックＩｐマネジメント株式会社 Ventilation air distribution system for livestock barn
US20190261593A1 (en) * 2017-11-22 2019-08-29 Five-G Consulting, Inc. Evaporative cooling system for an animal barn
WO2020241284A1 (en) * 2019-05-27 2020-12-03 パナソニック株式会社 Apparent temperature calculation system, environment control system, apparent temperature calculation method, program, and livestock shed
JP2021185759A (en) * 2020-05-26 2021-12-13 パナソニックＩｐマネジメント株式会社 Livestock barn ventilation system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427988U (en) * 1977-07-29 1979-02-23
JP2007205650A (en) * 2006-02-02 2007-08-16 Zenji Orimo Ventilator and poultry house provided therewith
JP2017181013A (en) * 2016-03-23 2017-10-05 パナソニックＩｐマネジメント株式会社 Ventilation air blowing system for livestock barn
JP2018121530A (en) * 2017-01-30 2018-08-09 パナソニックＩｐマネジメント株式会社 Ventilation air distribution system for livestock barn
US20190261593A1 (en) * 2017-11-22 2019-08-29 Five-G Consulting, Inc. Evaporative cooling system for an animal barn
WO2020241284A1 (en) * 2019-05-27 2020-12-03 パナソニック株式会社 Apparent temperature calculation system, environment control system, apparent temperature calculation method, program, and livestock shed
JP2021185759A (en) * 2020-05-26 2021-12-13 パナソニックＩｐマネジメント株式会社 Livestock barn ventilation system

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