WO2024237373A2 - Système de culture en serre ayant une fonction de refroidissement par évaporation, et procédé de culture en serre l'utilisant - Google Patents

Système de culture en serre ayant une fonction de refroidissement par évaporation, et procédé de culture en serre l'utilisant Download PDF

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Publication number
WO2024237373A2
WO2024237373A2 PCT/KR2023/006744 KR2023006744W WO2024237373A2 WO 2024237373 A2 WO2024237373 A2 WO 2024237373A2 KR 2023006744 W KR2023006744 W KR 2023006744W WO 2024237373 A2 WO2024237373 A2 WO 2024237373A2
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WIPO (PCT)
Prior art keywords
greenhouse
air
evaporative cooling
greenhouse cultivation
cooling function
Prior art date
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Ceased
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PCT/KR2023/006744
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English (en)
Korean (ko)
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WO2024237373A3 (fr
Inventor
안길준
안선태
안명홍
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Priority to PCT/KR2023/006744 priority Critical patent/WO2024237373A2/fr
Publication of WO2024237373A2 publication Critical patent/WO2024237373A2/fr
Publication of WO2024237373A3 publication Critical patent/WO2024237373A3/fr
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    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Definitions

  • the present invention relates to a greenhouse cultivation system and a greenhouse cultivation method, and more specifically, to a greenhouse cultivation system having an evaporative cooling function capable of lowering the temperature inside the greenhouse by installing an air duct and a spray nozzle inside the greenhouse, introducing air into the greenhouse through the air duct, and spraying water through the spray nozzle to perform evaporative cooling, and a greenhouse cultivation method using the same.
  • Crops In general, the growth and development of crops are largely controlled by light and temperature. Crops not only accumulate materials through photosynthesis, but also grow using energy from metabolic processes. Ultimately, if light is insufficient or the temperature is not appropriate, crop growth is bound to be slow. Accordingly, greenhouses or facility cultivation houses have been used to continuously cultivate crops industrially without being affected by the seasons.
  • Ventilation is a method of forcibly discharging air heated by sunlight penetration in a glass greenhouse, etc.
  • the facility is easy to install and has low installation costs, it has the disadvantage of having a small cooling capacity.
  • evaporative cooling methods such as fan-and-fog, fan-and-mist, and fan-and-pad require a lot of equipment costs and there is a risk of increasing indoor humidity.
  • Electric cooling although technically feasible, is used only for special purposes because the energy costs are too high.
  • evaporative cooling methods such as fan-and-fog, fan-and-mist, and fan-and-pad have been used, but these methods have excessive initial installation costs and the amount of water used for cooling is excessively large compared to the amount of water used for plant cultivation, which increases indoor humidity and can actually hinder crop cultivation.
  • the technical problem to be solved by the present invention is to provide a greenhouse cultivation system having an evaporative cooling function capable of lowering the temperature inside the greenhouse by installing an air duct and a spray nozzle inside the greenhouse, introducing air into the greenhouse through the air duct, and spraying water through the spray nozzle to perform evaporative cooling, and a greenhouse cultivation method using the same.
  • a greenhouse cultivation system having an evaporative cooling function is a greenhouse cultivation system for cultivating crops in a greenhouse, comprising: a storage tank for storing evaporative water; a pressurizing pump for pressurizing the evaporative water in the storage tank and supplying it to the greenhouse; an evaporative water supply line having a plurality of nozzles having orifices formed therein and supplying the evaporative water delivered by the pressurizing pump into the greenhouse; an air duct installed in the longitudinal direction of the greenhouse so as to supply and flow outside air and supply air into the greenhouse through air discharge holes formed at a predetermined interval at the bottom; and an air duct Tee for supplying outside air into the air duct by an axial fan, characterized in that the outside air discharged through the air discharge holes of the air duct is mixed with water droplets of the evaporative water sprayed from the nozzles positioned adjacent to the air discharge holes to control the temperature inside the greenhouse through evaporative cooling.
  • a greenhouse cultivation method using a greenhouse cultivation system having an evaporative cooling function is a greenhouse cultivation method having a cooling mode, a pest control mode, and a ventilation mode
  • the greenhouse cultivation method comprises: a storage tank for storing evaporative water; a pressurizing pump for pressurizing the evaporative water in the storage tank and supplying it to the greenhouse; an evaporative water supply line having a plurality of nozzles having orifices formed therein and supplying the evaporative water delivered by the pressurizing pump into the greenhouse; an air duct installed in the longitudinal direction of the greenhouse so that outside air is supplied and flows therethrough and supplies air into the greenhouse through air discharge holes formed at a predetermined interval at the bottom; and an air duct tee for supplying outside air into the air duct by an axial fan, wherein the greenhouse cultivation system having an evaporative cooling function is characterized in that the outside air discharged through the air discharge holes of the air duct is mixed with
  • the greenhouse cultivation system equipped with an evaporative cooling function according to the present invention and the greenhouse cultivation method using the same, there is an advantage in that the temperature inside the greenhouse can be lowered using only simple components such as an air duct and a spray nozzle inside the greenhouse.
  • the temperature sensor is equipped with a temperature sensor, a relative humidity sensor, and a CO2 concentration sensor, so that the temperature, humidity, and CO2 concentration inside the greenhouse can be controlled and maintained at conditions suitable for crop cultivation.
  • Figure 1 is a drawing schematically illustrating the configuration of a greenhouse cultivation system equipped with an evaporative cooling function according to the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A' of Figure 1.
  • FIG. 3 is a drawing showing an axial fan of a greenhouse cultivation system having an evaporative cooling function according to the present invention.
  • Figure 4 is a drawing showing an evaporation water supply line of a greenhouse cultivation system equipped with an evaporation cooling function according to the present invention.
  • Figure 5 is a drawing showing an air exhaust port of a greenhouse cultivation system equipped with an evaporative cooling function according to the present invention.
  • FIG. 1 is a drawing schematically illustrating the configuration of a greenhouse cultivation system equipped with an evaporative cooling function according to the present invention
  • FIG. 2 is a cross-sectional view taken along line A-A' of FIG. 1.
  • a greenhouse cultivation system (100) equipped with an evaporative cooling function comprises a storage tank (11), a chemical tank (12), a three-way valve (13), a pressurized pump (14), a filter (15), an ozone generator (16), a greenhouse boundary (21), an axial fan (22), an air duct (23), an air discharge hole (24), an evaporative water supply line (25), an air discharge port (28), a beam (29), a sensor unit (30), and an air duct tee (31).
  • the storage tank (11) stores evaporated water for growing crops in the greenhouse.
  • the pesticide tank (12) stores pesticides mixed in water for pest control.
  • the pressurizing pump (14) adjusts the three-way valve (13) to pressurize the evaporated water in the storage tank (11) or the pesticides in the pesticide tank (12) and supply them to the greenhouse.
  • the filter (15) removes contaminants contained in the evaporation water delivered by the pressurized pump (14).
  • the ozone generator (16) generates ozone and supplies ozone gas to the evaporation water delivered by the pressurized pump.
  • ozone gas generated from the ozone generator (16) into the evaporation water supply pipe (17) pressurized by the pressurized pump (14) using a venturi tube and causing the ozone to dissolve in water so that the ozone-dissolved water has a deodorizing and sterilizing effect, the effects of preventing diseases and pests of cultivated crops and sterilizing can be obtained.
  • the greenhouse cultivation system (100) equipped with an evaporative cooling function according to the present invention may further include a pressure regulator that adjusts the pressure of the evaporative water delivered by the pressurizing pump (14).
  • the greenhouse boundary (21) is formed of a translucent material such as vinyl or synthetic resin and serves to surround and seal the greenhouse.
  • Fig. 3 is a drawing showing an axial fan of a greenhouse cultivation system having an evaporative cooling function according to the present invention.
  • the greenhouse cultivation system (100) equipped with an evaporative cooling function according to the present invention may further include an ultraviolet sterilization device (22a) that sterilizes external air supplied into the air duct tee (31) through the axial fan (22) with ultraviolet rays.
  • an ultraviolet sterilization device (22a) that sterilizes external air supplied into the air duct tee (31) through the axial fan (22) with ultraviolet rays.
  • the ultraviolet sterilization device (22a) may further include a manifold (not shown) through which external air introduced through the axial fan (22) passes, and an ultraviolet sterilization lamp (not shown) installed within the manifold.
  • the air duct (23) is installed in the longitudinal direction of the greenhouse so that outside air is supplied and flows, and air is supplied into the greenhouse through air discharge holes (24) formed at a predetermined interval at the bottom.
  • the air duct (23) has a length of 30 to 40 m and a pipe shape with a cross section of 450 mm x 400 mm.
  • the air duct tee (31) serves to supply outside air into the air duct (23) by means of an axial fan (22).
  • the inlet of the air duct tee (31) is formed in a cylindrical shape with a diameter of 500 mm, and the two outlets have the shape of a tube measuring 450 mm x 400 mm. Meanwhile, the length of the air duct tee (31) is preferably 0.8 m to 1.2 m.
  • the air discharge hole (24) is formed at the bottom of the air duct (23) along the entire length of the air duct (23). At this time, the hole of the air discharge hole (24) has a size of 100 mm x 200 mm and is formed at an interval of 1.5 m. At this time, it is preferable that the long axis of the hole of the air discharge hole (24) is formed in a direction perpendicular to the axis of the air duct (23). In addition, it is preferable that 8 to 12 air discharge holes (24) are formed in one air duct (23).
  • the above air discharge hole (24) has a semicircular arch member formed at the entrance so that air discharged into the greenhouse through the semicircular arch member can form a turbulent flow.
  • the evaporation water supply line (25) is equipped with a plurality of nozzles (25a) having orifices formed therein, and sprays the evaporation water delivered by the pressurized pump (12) into the greenhouse in the form of a spray through the orifices of the plurality of nozzles (25a).
  • the greenhouse cultivation system (100) equipped with an evaporative cooling function according to the present invention controls the temperature inside the greenhouse by evaporative cooling by mixing the outside air discharged in the form of turbulence through the semicircular arch member of the air discharge hole (24) of the air duct (23) with the water droplets of the evaporative water sprayed in the form of a spray from the nozzle (25a) located adjacent to the air discharge hole (24).
  • the spray fog of the nozzle can promote the diffusion of the air discharged from the air discharge hole (24), thereby facilitating evaporation.
  • the air discharge hole (24) and the nozzle (25a) so that the spray direction faces downward in the direction of gravity, the cool air formed by evaporation is directed to the bottom surface where the plants are, and the air heated inside the greenhouse naturally moves upward by natural convection and pressurization of the blower, so that the humidity inside the greenhouse can be easily controlled.
  • Figure 4 is a drawing showing an evaporation water supply line of a greenhouse cultivation system equipped with an evaporation cooling function according to the present invention.
  • the evaporation water supply line (25) of the greenhouse cultivation system equipped with an evaporation cooling function according to the present invention is made of a polymer tube having a diameter of 8 mm.
  • the evaporation water is supplied into the evaporation water supply line (25) in the form of a polymer tube by a pressure pump (14).
  • the evaporation water supply line (25) of the greenhouse cultivation system with evaporation cooling function according to the present invention is cut at the air discharge hole (24) portion of the air duct (23), and a nozzle (25a) having an orifice is installed at the cut portion. It is preferable that the nozzle (25a) be a spray nozzle capable of spraying evaporation water flowing inside the evaporation water supply line (25) into the interior of the greenhouse.
  • the evaporated water sprayed by the nozzle (25a) exists in a spray (26) state inside the greenhouse and forms a stratified boundary (27) at the bottom and top of the greenhouse.
  • An air exhaust port (28) is formed at the top of the greenhouse to discharge hot air inside the greenhouse to the outside.
  • Figure 5 is a drawing showing an air exhaust port of a greenhouse cultivation system equipped with an evaporative cooling function according to the present invention.
  • the above air outlet (28) is formed in the shape of a square pillar at the top of the greenhouse. At this time, the upper part (28a) of the air outlet is sealed, and an inertial grid is formed on the four sides (28b) to discharge the internal air.
  • the above air exhaust port (28) has a check valve structure in which, when the air inside the greenhouse becomes hot and the pressure inside the greenhouse rises, the inertial grid formed on the four sides (28b) opens to discharge the hot indoor air to the outside, and when the pressure inside the greenhouse drops again, the inertial grid closes again.
  • the air outlet (28) is designed to exclude free air flow of the ventilation system and to automatically close when the fan is not in operation.
  • the air outlet (28) is preferably made of moisture-proof nylon material and installed vertically with the inertial grid facing downward.
  • the humidity and temperature inside the greenhouse can be controlled by adjusting the flow rate of the evaporation water supplied into the evaporation water supply line (25) by the pressurized pump (14) and the evaporation water sprayed into the greenhouse by the nozzle (25a).
  • the greenhouse cultivation system equipped with the evaporation cooling function according to the present invention can further include a sensor unit (30) capable of measuring the temperature, relative humidity, and carbon dioxide (CO 2 ) concentration inside the greenhouse.
  • a carbon dioxide supply line may be connected to an evaporative water supply line (25) and a check valve may be installed to supply carbon dioxide (CO 2 ) into the evaporative water supply line (25).
  • Carbon dioxide (CO 2 ) may be supplied from a cylinder through a reducer and a solenoid control valve. At this time, it is preferable to control the operating pressure of the reducer to be 5 bar or less and the concentration of carbon dioxide (CO 2 ) to be maintained in a range of 800 to 2000 ppm.
  • water sprayed by a nozzle (25a) of an evaporation water supply line (25) can be ozonated to suppress the occurrence of bacteria in a plant environment.
  • a greenhouse cultivation method using a greenhouse cultivation system having an evaporative cooling function is a greenhouse cultivation method having a cooling mode, a pest control mode, and a ventilation mode
  • the greenhouse cultivation method comprises: a storage tank for storing evaporative water; a pressurizing pump for pressurizing the evaporative water in the storage tank and supplying it to the greenhouse; an evaporative water supply line having a plurality of nozzles having orifices formed therein and supplying the evaporative water delivered by the pressurizing pump into the greenhouse; an air duct installed in the longitudinal direction of the greenhouse so that outside air is supplied and flows therethrough and supplies air into the greenhouse through air discharge holes formed at a predetermined interval at the bottom; and an air duct tee for supplying outside air into the air duct by an axial fan, wherein the outside air discharged through the air discharge holes of the air duct is mixed with water droplets of the evaporative water sprayed from the nozzles located adjacent to the air
  • the axial fan and the pressurized pump are operated to cool the air inside the greenhouse.
  • the axial fan is stopped and the pest control agent delivered by the pressurized pump is supplied.
  • the pest control agent stored in the pest control tank it is preferable to supply the pest control agent stored in the pest control tank and spray it onto the crop through the evaporation water supply line.
  • the pressurizing pump is stopped and the axial fan is operated to bring in outside air and remove moisture from the greenhouse.
  • a greenhouse cultivation method using a greenhouse cultivation system having an evaporative cooling function according to the present invention can control the operations of the cooling mode, the pest control mode, and the ventilation mode using a control unit.
  • the evaporative cooling effect can be further improved by forming turbulence when air is discharged through an air discharge hole in an air duct and creating fog using a plurality of nozzles adjacent to the air discharge hole.

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  • Greenhouses (AREA)

Abstract

La présente invention concerne un système de culture en serre ayant une fonction de refroidissement par évaporation, et un procédé de culture en serre l'utilisant, qui fournissent un conduit d'air et une buse de pulvérisation à l'intérieur d'une serre, introduisent de l'air dans la serre à travers le conduit d'air et pulvérisent de l'eau à travers la buse de pulvérisation de façon à effectuer un refroidissement par évaporation, ce qui permet de réduire la température à l'intérieur de la serre. Selon le système de culture de serre ayant une fonction de refroidissement par évaporation, et le procédé de culture de serre l'utilisant, de la présente invention, la température à l'intérieur de la serre peut être abaissée en utilisant simplement une structure simple telle qu'un conduit d'air et une buse de pulvérisation à l'intérieur de la serre, et la température, l'humidité et la CO2 à l'intérieur de la serre peuvent être commandées et maintenues dans des conditions qui sont appropriées pour la culture de plants.
PCT/KR2023/006744 2023-05-18 2023-05-18 Système de culture en serre ayant une fonction de refroidissement par évaporation, et procédé de culture en serre l'utilisant Ceased WO2024237373A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2023/006744 WO2024237373A2 (fr) 2023-05-18 2023-05-18 Système de culture en serre ayant une fonction de refroidissement par évaporation, et procédé de culture en serre l'utilisant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2023/006744 WO2024237373A2 (fr) 2023-05-18 2023-05-18 Système de culture en serre ayant une fonction de refroidissement par évaporation, et procédé de culture en serre l'utilisant

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WO2024237373A2 true WO2024237373A2 (fr) 2024-11-21
WO2024237373A3 WO2024237373A3 (fr) 2025-01-02

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PCT/KR2023/006744 Ceased WO2024237373A2 (fr) 2023-05-18 2023-05-18 Système de culture en serre ayant une fonction de refroidissement par évaporation, et procédé de culture en serre l'utilisant

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Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0545012A (ja) * 1991-08-09 1993-02-23 Tabai Espec Corp 圧縮式冷凍方法及び装置
KR200263476Y1 (ko) * 2001-11-08 2002-02-04 지명학 농축산물 하우스용 냉난방 공기 조화 장치
JP4431789B2 (ja) * 2004-06-22 2010-03-17 国立大学法人 千葉大学 温室の冷房装置及びそれを用いた冷房方法
KR100884261B1 (ko) * 2007-04-24 2009-02-18 김영생 무농약 온실 살균장치
JP6718627B2 (ja) * 2015-11-10 2020-07-08 株式会社いけうち 植物栽培室の防除装置
KR101692241B1 (ko) * 2016-07-06 2017-01-03 (주)티에스엠 낙수방지 포그시스템
KR20200002544A (ko) * 2018-06-30 2020-01-08 주식회사 에스앤엠 온실에 체크 밸브를 갖는 온실 제어 시스템
JP2022026923A (ja) * 2020-07-31 2022-02-10 Jnc株式会社 栽培用ハウス
KR102272766B1 (ko) * 2020-11-10 2021-07-05 씨이에스 주식회사 스마트 팜 온습도 관리시스템
KR102825955B1 (ko) * 2022-05-12 2025-06-27 안길준 증발냉각 기능을 구비한 온실 재배 시스템 및 이를 이용한 온실 재배 방법

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