CN109425061A - A kind of research greenhouse cooling system - Google Patents
A kind of research greenhouse cooling system Download PDFInfo
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- CN109425061A CN109425061A CN201710785829.0A CN201710785829A CN109425061A CN 109425061 A CN109425061 A CN 109425061A CN 201710785829 A CN201710785829 A CN 201710785829A CN 109425061 A CN109425061 A CN 109425061A
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/246—Air-conditioning systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Environmental Sciences (AREA)
- Greenhouses (AREA)
Abstract
The present invention provides a kind of research greenhouse cooling system, including control unit, temperature collecting cell, water-cooled cooling unit, ventilation unit, blowing unit, it is characterized in that, greenhouse is divided into several regions, a temperature collecting cell is included at least in each region, blowing unit is set in each region or public one group of multiple regions；Temperature in the real-time pickup area of temperature collecting cell, the temperature reducing unit cools down to greenhouse, the ventilation unit is used for the air circulation of greenhouse and canopy outer room, circulation of the blowing unit for air in greenhouse, described control unit are used to control the work of temperature reducing unit, ventilation unit, blowing unit.
Description
Technical field
The present invention relates to a kind of falling temperature technique, especially a kind of cooling system applied to research greenhouse.
Background technique
Traditional temperature control is that thermometer is hung in vinyl house, knows the reality in greenhouse by reading temperature value
Border temperature.It is compared further according to existing temperature with set temperature, looks at that temperature is excessively high or too low.If crossing higher position to greenhouse
Carry out cooling processing.These operations all carry out in the manual case, expend a large amount of manpowers and material resources, far can not expire
The needs of sufficient modern agricultural production.
Summary of the invention
The purpose of the present invention is to provide a kind of research greenhouse cooling system, including control unit, temperature collecting cell,
Water-cooled cooling unit, ventilation unit, blowing unit, which is characterized in that greenhouse is divided into several regions, in each region at least
Including a temperature collecting cell, blowing unit is set in each region or public one group of multiple regions；The temperature acquisition
Temperature in the real-time pickup area of unit, the temperature reducing unit cool down to greenhouse, and the ventilation unit is used for outside greenhouse and canopy
Between air circulation, circulation of the blowing unit for air in greenhouse, described control unit is for controlling temperature reducing unit, logical
The work of wind unit, blowing unit；Described control unit includes signal receiving subelement, comparing subunit, signal transmission son list
Member, wherein signal receiving subelement receive temperature collecting cell temperature signal, comparing subunit be used for by temperature signal with set
Determine threshold value and be compared and generate working signal, signal transmission sub-unit send working signal water-cooled cooling unit, ventilation unit,
Blowing unit；The temperature reducing unit includes that water-cooled cooling subelement and dry ice are sprayed subelement；Wherein water-cooled cooling is single
Member includes water pipe, water tank, control valve, and water pipe includes water main and branching pipe, and several peripheries along each region of water main are arranged
And each water main water inlet end and water outlet connect to form circulation with water tank, branching pipe is connected in each area with water main
Intert setting in domain, control valve is set between the water main and water tank and between water main and branching pipe, by control unit
It is controlled；The dry ice is sprayed subelement and is set in each region or public one group of multiple regions, including nozzle, dry ice system
The dry ice pipeline made machine, be connected to nozzle and carbon dioxide ice maker, and the control valve being arranged on dry ice pipeline；The control valve with
The connection of control unit signal instructs adjustment dry ice flow according to control unit.
Traditional greenhouse craft cooling method is replaced with full-automatic cooling method by the present invention, by temperature acquisition,
The cooling of greenhouse is completed in cooling, ventilation, air-supply and control unit collaboration.Multiple regions, Mei Yiqu are set by greenhouse simultaneously
A temperature collecting cell is included at least in domain, each region is respectively provided with a water-cooled cooling unit, and at least adjacent region is public
One group of dry ice sprayer unit blowing unit, can accomplish the precise controlling to greenhouse temperature.
The present invention is described further with reference to the accompanying drawings of the specification.
Detailed description of the invention
Fig. 1 is the principle of the present invention schematic diagram.
Specific embodiment
In conjunction with Fig. 1, a kind of research greenhouse cooling system, including control unit, temperature collecting cell, water-cooled cooling list
Member, dry ice sprayer unit, ventilation unit, blowing unit.Wherein the temperature collecting cell is for acquiring canopy temperature, water cooling
Temperature reducing unit childhood, which crosses water circulation, reduces canopy temperature, and dry ice sprayer unit is used to spray dry ice to reduce canopy temperature,
Ventilation unit is used for the air circulation of greenhouse and canopy outer room, circulation of the blowing unit for air in greenhouse, and control unit is used for
Control the work of dry ice sprayer unit, ventilation unit, blowing unit.Furthermore the system further includes power supply unit, for being system
Operating voltage is provided.
Specifically, entire greenhouse being divided into several regions, different zones area may be the same or different, on
Stating temperature collecting cell has arrangement in each region, and dry ice sprayer unit, blowing unit can be arranged in each region,
One group of dry ice sprayer unit, blowing unit can be shared with multiple adjacent areas, water-cooled cooling unit is arranged in each region.
Temperature information in the real-time pickup area of temperature collecting cell simultaneously feeds back to control unit.The chip that the unit uses
For LM35CZ chip, covering temperature can achieve -40 DEG C~110 DEG C, and measured temperature is every to increase by 1 DEG C, and output voltage signal mentions
High 10mv.An amplifying circuit is connected in LM35CZ chip output, for amplifying LM35CZ chip signal output.
Water-cooled cooling unit includes water pipe, water tank and control valve.The water pipe includes water main and branching pipe, water main edge
The periphery in each region is arranged, and branching pipe is connected with water main, and setting, the water inlet of each water main are interted in each region
End and water outlet connect to form circulation with water tank.It is arranged between the water main and water tank and between water main and branching pipe
Control valve is controlled by control unit.Such as when zonule a certain in the region D temperature is excessively high, unlatching is across region Zhi Shui
The control valve of pipe carries out cooling water circulation.
Dry ice sprayer unit includes nozzle, carbon dioxide ice maker, the dry ice pipeline for being connected to nozzle and carbon dioxide ice maker, Yi Jishe
Set the control valve on dry ice pipeline.The control valve is connect with control unit signal, is instructed according to temperature reception control unit
Adjust dry ice flow.Carbon dioxide ice maker can be located at outside greenhouse.
Water-cooled cooling unit and dry ice sprayer unit are worked at the same time or are worked alternatively in the present invention, when temperature of shed is not very
Gao Shi, it is preferential to select water-cooled cooling unit, select dry ice sprayer unit to can choose when the temperature is excessively high when temperature is higher
Water-cooled cooling unit and dry ice sprayer unit are opened simultaneously, and the selection of operating mode is selected by control unit according to temperature.It can
To activate water-cooled cooling unit and/or dry ice sprayer unit by setting different temperature thresholds.
Ventilation unit can be the ventilation fan being arranged on greenhouse wall, for adjusting each component ratio of gas in canopy, make
Obtain the gaseous environment close to outside canopy.Although dry ice can cool down rapidly, CO in canopy can be made2Concentration increases, especially at night
Deleterious effect is generated to canopy implants, it is therefore desirable to which a ventilation unit changes gaseous environment in canopy.
Sending sub-unit can be pressure fan, and setting purpose is in order to enable a certain region does not make temperature because of the sprinkling of dry ice
Degree decline is too low, by pressure fan, accelerates the flowing of gas in canopy so that temperature of shed be maintained at one it is constant under conditions of.It should
Blower setting gear, in low-grade location when commonly used, air-supply is essentially natural wind, under extreme condition, may be at top grade
, gas in quick convection current canopy.
Control unit controls different dry ice sprayer units, blowing unit and ventilation unit work according to the temperature in each region
Make.Control unit includes signal receiving subelement, comparing subunit, signal transmission sub-unit.Signal receiving subelement is for connecing
The temperature signal of the different zones of the acquisition of shrinkage temperature acquisition unit；Comparing subunit be used for by temperature signal and given threshold into
Row compares, and judges whether current zone temperature is in normal；Signal transmission sub-unit sends a signal to dry ice sprayer unit, water cooling
Temperature reducing unit, blowing unit and ventilation unit.Wherein since region is several, mistake of the temperature acquisition subelement in transmission signal
Should add in journey can be with the encoded signal of identification region to control unit, therefore control unit should also include that identification is single
Member identifies the temperature signal of different zones.Control unit further includes that coded sub-units are used to work out identification code into transmission signal.
Since water-cooled cooling unit control valve, dry ice sprayer unit and blowing unit may also have several, in these three units
Signal receiving portion setting one identification subelement, it is therefore an objective to control unit send signal when towards all water-cooled cooling units,
Dry ice sprayer unit, blowing unit, and include identification code in the transmission signal, but not each water-cooled cooling unit, dry ice
Sprayer unit, blowing unit work, therefore are arranged and send signal in dry ice sprayer unit, blowing unit identification subelement identification
In identification code, after only identification code is matched successfully, dry ice sprayer unit, blowing unit are just started to work.Since water cooling drops
Warm unit, dry ice sprayer unit, blowing unit are not that each region has, so the identification code of the two recognition unit can identify
A sets of numbers section out.When the temperature of temperature collecting cell transmission is in a reasonable value, control unit then issues stop signal
It is required that dry ice sprayer unit stops by spraying, but the work of ventilation unit and blowing unit might not be stopped, comprehensive consideration canopy
Stop the work of ventilation unit and blowing unit after other interior regional temperatures again.
The working principle of the invention is: the temperature in temperature collecting cell acquisition one's respective area sends control unit to, controls
Whether unit processed needs water-cooled cooling unit, dry ice sprayer unit, ventilation unit, blowing unit work by multilevel iudge, if
Temperature is more than preset threshold value, then further judges that water-cooled cooling unit, dry ice sprayer unit, ventilation unit, air-supply are single
Which unit needs work between member work, and sends signal by its work.The dry ice sprayer unit, ventilation unit, air-supply
Unit grows numerical value by the work of collaboration to maintain temperature of shed to be in a suitable for plant.So-called collaboration is exactly according to not
It considers with region is temperature integrated, such as when the temperature in the adjacent region D, E is more than pre-set threshold value, but remaining is adjacent
A, the region B, C, F is more than threshold value, the dry ice sprayer unit mist cooling that the region D, E matches at this time, when temperature drops to
When being suitble to plant growth, stop spraying.It is contemplated that the adjacent region A, B, C, F may be warm due to the spraying influence of dry ice
Degree reduces, therefore the corresponding blowing unit in the region A, B, C, F still works, it is contemplated that CO caused by dry ice cooling2Gas,
Therefore ventilation unit is still in working condition.Until the temperature of each region maintains the environment of suitable plant growth in greenhouse
The work of state out-of-blast unit and ventilation unit.
Claims (6)
1. a kind of research greenhouse cooling system, including control unit, temperature collecting cell, temperature reducing unit, ventilation unit, air-supply
Unit, which is characterized in that greenhouse is divided into several regions, and a temperature collecting cell, air-supply are included at least in each region
Unit is set in each region or multiple regions share one group；
Temperature in the real-time pickup area of temperature collecting cell,
The temperature reducing unit cools down to greenhouse,
The ventilation unit is used for the air circulation of greenhouse and canopy outer room,
Circulation of the blowing unit for air in greenhouse,
Described control unit is used to control the work of temperature reducing unit, ventilation unit, blowing unit；
Described control unit includes signal receiving subelement, comparing subunit, signal transmission sub-unit, wherein
Signal receiving subelement receives the temperature signal of temperature collecting cell,
Comparing subunit is used to that temperature signal to be compared to given threshold and be generated working signal,
Signal transmission sub-unit sends working signal to water-cooled cooling unit, ventilation unit, blowing unit；
The temperature reducing unit includes that water-cooled cooling subelement and dry ice are sprayed subelement；Wherein
The water-cooled cooling subelement includes water pipe, water tank, control valve,
Water pipe includes water main and branching pipe,
Several peripheries along each region of water main are arranged and the water inlet end of each water main and water outlet connect shape with water tank
At circulation,
Branching pipe, which is connected in each region with water main, interts setting,
Control valve is set between the water main and water tank and between water main and branching pipe, is controlled by control unit；
The dry ice is sprayed subelement and is set in each region or public one group of multiple regions, including nozzle, carbon dioxide ice maker,
It is connected to the dry ice pipeline of nozzle and carbon dioxide ice maker, and the control valve being arranged on dry ice pipeline；The control valve and control
Cell signal connection instructs adjustment dry ice flow according to control unit.
2. system according to claim 1, which is characterized in that it is same that the water-cooled cooling subelement and dry ice are sprayed subelement
When work or work alternatively.
3. system according to claim 1, which is characterized in that
The signal that each temperature collecting cell is sent includes unique identification code,
Control unit further includes the identification subelement for identifying temperature signal identification code,
Control unit further includes that coded sub-units are used to work out identification code into transmission signal,
The signal receiving part of temperature reducing unit and blowing unit, which sets up separately, sets identification subelement, and identification sends the identification code in signal, knows
Other code, which is matched, just starts to work.
4. system according to claim 1, which is characterized in that the temperature collecting cell uses LM35CZ chip, covers
Lid temperature is -40 DEG C~110 DEG C, and measured temperature is every to increase by 1 DEG C, and output voltage signal improves 10mv.
5. system according to claim 3, which is characterized in that amplifying circuit is arranged in the LM35CZ chip output.
6. system according to claim 1, which is characterized in that described to send sub-unit that different air-supply gears, Mei Yidang is arranged
Position air output is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710785829.0A CN109425061A (en) | 2017-09-04 | 2017-09-04 | A kind of research greenhouse cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710785829.0A CN109425061A (en) | 2017-09-04 | 2017-09-04 | A kind of research greenhouse cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109425061A true CN109425061A (en) | 2019-03-05 |
Family
ID=65513318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710785829.0A Pending CN109425061A (en) | 2017-09-04 | 2017-09-04 | A kind of research greenhouse cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109425061A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113068546A (en) * | 2021-03-31 | 2021-07-06 | 广东积微科技有限公司 | Air conditioner control method for greenhouse low-temperature refrigeration |
| CN115281022A (en) * | 2022-07-21 | 2022-11-04 | 中国农业科学院农田灌溉研究所 | Humidifying and cooling device and method for reducing harm of dry hot air |
-
2017
- 2017-09-04 CN CN201710785829.0A patent/CN109425061A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113068546A (en) * | 2021-03-31 | 2021-07-06 | 广东积微科技有限公司 | Air conditioner control method for greenhouse low-temperature refrigeration |
| CN115281022A (en) * | 2022-07-21 | 2022-11-04 | 中国农业科学院农田灌溉研究所 | Humidifying and cooling device and method for reducing harm of dry hot air |
| CN115281022B (en) * | 2022-07-21 | 2024-06-11 | 中国农业科学院农田灌溉研究所 | Humidification cooling device and method for reducing harm of dry hot air |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190305 |
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| WD01 | Invention patent application deemed withdrawn after publication |