WO2023149430A1 - 鶏舎換気システム及び鶏舎換気方法 - Google Patents

鶏舎換気システム及び鶏舎換気方法 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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WO
WIPO (PCT)
Prior art keywords
poultry house
ventilation
air
poultry
control
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Ceased
Application number
PCT/JP2023/003074
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English (en)
French (fr)
Japanese (ja)
Inventor
邦男 南部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nbl Co Ltd
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Nbl Co Ltd
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Filing date
Publication date
Application filed by Nbl Co Ltd filed Critical Nbl Co Ltd
Priority to JP2023578564A priority Critical patent/JP7805658B2/ja
Publication of WO2023149430A1 publication Critical patent/WO2023149430A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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

Definitions

  • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Housing For Livestock And Birds (AREA)
  • Ventilation (AREA)
PCT/JP2023/003074 2022-02-01 2023-01-31 鶏舎換気システム及び鶏舎換気方法 Ceased WO2023149430A1 (ja)

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JP2023578564A JP7805658B2 (ja) 2022-02-01 2023-01-31 鶏舎換気システム及び鶏舎換気方法

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JP2022-013991 2022-02-01
JP2022013991 2022-02-01

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427988U (https=) * 1977-07-29 1979-02-23
JP2007205650A (ja) * 2006-02-02 2007-08-16 Zenji Orimo 換気装置およびそれを備えた鶏舎
JP2017181013A (ja) * 2016-03-23 2017-10-05 パナソニックＩｐマネジメント株式会社 畜舎用換気送風システム
JP2018121530A (ja) * 2017-01-30 2018-08-09 パナソニックＩｐマネジメント株式会社 畜舎用換気送風システム
US20190261593A1 (en) * 2017-11-22 2019-08-29 Five-G Consulting, Inc. Evaporative cooling system for an animal barn
WO2020241284A1 (ja) * 2019-05-27 2020-12-03 パナソニック株式会社 体感温度演算システム、環境制御システム、体感温度演算方法、プログラム及び畜舎
JP2021185759A (ja) * 2020-05-26 2021-12-13 パナソニックＩｐマネジメント株式会社 畜舎の換気システム

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427988U (https=) * 1977-07-29 1979-02-23
JP2007205650A (ja) * 2006-02-02 2007-08-16 Zenji Orimo 換気装置およびそれを備えた鶏舎
JP2017181013A (ja) * 2016-03-23 2017-10-05 パナソニックＩｐマネジメント株式会社 畜舎用換気送風システム
JP2018121530A (ja) * 2017-01-30 2018-08-09 パナソニックＩｐマネジメント株式会社 畜舎用換気送風システム
US20190261593A1 (en) * 2017-11-22 2019-08-29 Five-G Consulting, Inc. Evaporative cooling system for an animal barn
WO2020241284A1 (ja) * 2019-05-27 2020-12-03 パナソニック株式会社 体感温度演算システム、環境制御システム、体感温度演算方法、プログラム及び畜舎
JP2021185759A (ja) * 2020-05-26 2021-12-13 パナソニックＩｐマネジメント株式会社 畜舎の換気システム

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JP7805658B2 (ja) 2026-01-26

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