CN110810082A - Vegetable greenhouse integrating recarburization, temperature control and irrigation and method - Google Patents
Vegetable greenhouse integrating recarburization, temperature control and irrigation and method Download PDFInfo
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- CN110810082A CN110810082A CN201911141790.4A CN201911141790A CN110810082A CN 110810082 A CN110810082 A CN 110810082A CN 201911141790 A CN201911141790 A CN 201911141790A CN 110810082 A CN110810082 A CN 110810082A
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- hydrate
- greenhouse
- carbon dioxide
- temperature
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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
- A01G9/18—Greenhouses for treating plants with carbon dioxide or the like
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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
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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
Abstract
The invention relates to the technical field of agricultural production, in particular to a vegetable greenhouse integrating recarburization, temperature control and irrigation and a method; mainly comprises a hydrate generating system, a vegetable greenhouse and a control system; the endothermic effect of the decomposition process of the carbon dioxide hydrate and the carbon dioxide and water generated by the decomposition of the hydrate are utilized. The invention provides a vegetable greenhouse technology which can simultaneously control temperature, increase carbon and irrigate at one time. The novel greenhouse technology provided by the invention can integrate the three requirements of carbon dioxide addition, temperature control and irrigation of the traditional vegetable greenhouse, greatly simplify the greenhouse operation process, reduce the production cost, improve the concentration of the carbon dioxide, control the temperature of the greenhouse, facilitate the accumulation of nutrient substances in vegetables and improve the quality of the vegetables.
Description
Technical Field
The invention belongs to the technical field of agricultural production, and particularly relates to a vegetable greenhouse integrating recarburization, temperature control and irrigation and a method.
Background
With the improvement of living standard, the demand of fresh vegetables is also increased rapidly, especially out-of-season vegetables; therefore, the demand for vegetable greenhouses is also gradually increasing. The vegetable greenhouse is planting equipment for simulating vegetable growth, and the temperature in the greenhouse is required to meet certain plant growth requirements, so that the greenhouse is required to be kept in a sealed state in the plant growth process, air in the greenhouse cannot circulate with the outside, and a large amount of carbon dioxide gas is required for plant growth, so that carbon dioxide in the greenhouse can be continuously consumed; once the carbon dioxide concentration in the greenhouse is reduced, the photosynthesis of the plants is limited, and the growth of the plants is influenced.
Because the environment in the vegetable greenhouse is sealed, the temperature is often too high in certain areas or summer, and the occurrence of plant diseases and insect pests is easily caused by the too high temperature, the temperature reduction treatment is needed in the vegetable greenhouse; it is extremely important to control the temperature of the greenhouse within a reasonable range, and when the temperature of the greenhouse is too high, the top of the greenhouse is opened for ventilation and cooling by a conventional method, so that the effect of the greenhouse is reduced, and the growth of plants is not facilitated.
Simultaneously, vegetable greenhouse vegetation is fast, needs a large amount of moisture, and traditional greenhouse is irrigated and is needed a large amount of water, still need be equipped with irrigation equipment alone, and is with high costs, operates inconveniently, and the effect is not good. At present, irrigation equipment and temperature control equipment in the greenhouse are separated, two sets of different equipment are needed, the cost of the vegetable greenhouse is increased, and the operation is relatively inconvenient.
Carbon dioxide hydrate is a non-stoichiometric, cage-shaped, solid crystalline substance formed by carbon dioxide and water at low temperature and high pressure. It will decompose endothermically at normal temperature and pressure to produce gaseous carbon dioxide and water. A cubic meter volume of carbon dioxide hydrate can store more than one hundred cubic meters of carbon dioxide gas. Therefore, the generated carbon dioxide hydrate can be conveyed to the vegetable greenhouse by utilizing the property of the carbon dioxide hydrate, and the concentration of the carbon dioxide in the vegetable greenhouse can be effectively improved. The carbon dioxide can absorb a large amount of heat after decomposition, and the effect of cooling the greenhouse can be achieved.
Aiming at the defects of the traditional vegetable greenhouse technology at present, the invention provides a vegetable greenhouse integrating recarburization, temperature control and irrigation in combination with a hydrate technology.
Disclosure of Invention
The greenhouse aims at the problems of low carbon dioxide concentration, high temperature, inconvenience in irrigation, time and labor waste and high cost of the traditional vegetable greenhouse. The invention aims to provide a vegetable greenhouse integrating recarburization, temperature control and irrigation, which integrates carbon dioxide concentration increase, temperature control and irrigation of the greenhouse and creates an intelligent automatic control vegetable greenhouse.
The specific technical scheme is as follows:
a vegetable greenhouse integrating recarburization, temperature control and irrigation comprises a solar cell panel, a storage battery, a vegetable greenhouse, a reservoir, a water pump, a carbon dioxide gas cylinder, a hydrate generation chamber, a cooling circulating water bath machine and a computer control system;
a sensor, a first pipeline and a second pipeline are arranged in the vegetable greenhouse, and nozzles are uniformly arranged on the first pipeline and the second pipeline; the sensor comprises a temperature sensor, a photosensitive sensor and a carbon dioxide concentration sensor;
the hydrate generating chamber comprises a water inlet pipe, a water inlet control valve, a gas inlet pipeline, a gas inlet control valve, a pressure temperature sensor, a stirrer, a cooling water inlet pipeline, a cooling water control valve, a cooling water outlet pipeline and a delivery pump arranged at the outlet of the hydrate generating chamber;
the hydrate generation chamber is composed of an inner layer and an outer layer, the inner layer is made of a pressure-resistant metal material, the outer layer is made of a metal shell material and a heat-insulating material, and the heat-insulating material is positioned on the outermost layer; a cavity is arranged between the inner layer material and the outer layer material and is filled with cooling circulating water;
the outlet of the carbon dioxide gas cylinder is connected with the gas inlet of the hydrate generation chamber, and the reservoir is connected with the water inlet of the hydrate generation chamber through a water pump; the outlet of the hydrate generation chamber is connected with a first pipeline through a delivery pump, and the hydrate delivered into the first pipeline is sprayed into the vegetable greenhouse through a nozzle; the second pipeline is connected with the outlet of the cooling circulating water bath machine.
Preferably, the pressure in the carbon dioxide gas cylinder is more than 1.5MPa, and the temperature of the cooling circulating water is 0-7 ℃; the pressure and temperature in the hydrate generation are both required to be controlled above the carbon dioxide hydrate phase equilibrium curve.
Preferably, the concentration of carbon dioxide in the vegetable greenhouse is controlled to be not less than 200ppm and not more than 3000 ppm; the temperature is controlled at 10-20 deg.C at night and 20-40 deg.C at day.
Preferably, all the electric equipment in the system, including the cooling circulating water bath machine and the computer control system, require electric energy from a solar panel; the storage battery stores redundant electric energy.
The method for integrating the recarburization temperature control irrigation into a vegetable greenhouse comprises the following steps:
the first step is as follows: starting the cooling circulating water bath machine, opening a cooling water control valve of the hydrate generation chamber, and filling cooling water into the cavity;
the second step is that: opening a hydrate generation chamber water inlet control valve, enabling water in a reservoir to enter the hydrate generation chamber through a water pump, closing the water inlet control valve after water injection is completed, opening the water inlet control valve, and injecting carbon dioxide into the hydrate generation chamber;
the third step: after the gas injection is finished, starting the stirrer; after the hydrate is generated, the hydrate is conveyed to a first pipeline of the vegetable greenhouse through a conveying pump, and hydrate slurry is sprayed out through a nozzle and is decomposed into gaseous carbon dioxide and water through heat absorption;
the fourth step: the power of the delivery pump is adjusted in real time according to the carbon dioxide concentration in the greenhouse detected by the sensor, and the amount of the carbon dioxide hydrate sprayed out by the nozzle is controlled, so that the effect of controlling the carbon dioxide concentration in the greenhouse is achieved;
the fifth step: when the sensor detects that the concentration of carbon dioxide in the greenhouse is too high and the hydrate cannot be used for cooling, the cooling water is conveyed to the greenhouse through a second pipeline by adopting a direct cooling method, and the cooling water is sprayed to directly cool; meanwhile, real-time detection and feedback adjustment are carried out on the temperature, and the temperature of the greenhouse is maintained within a set range.
The invention has the beneficial effects that: by combining the hydration method, the invention integrates the traditional vegetable greenhouse recarburization, temperature control and irrigation into a whole, can automatically collect recarburization temperature control irrigation, greatly simplifies the greenhouse operation process, reduces the production cost, can better promote the plant growth, increases the vegetable yield and improves the vegetable quality. The carbon dioxide concentration is improved, and meanwhile, the temperature of the greenhouse can be controlled. The greenhouse can effectively reduce the temperature of the greenhouse when used at night, improve the day and night temperature difference of the greenhouse, reduce the cell respiration of plants at night, facilitate the accumulation of nutrient substances in vegetables and improve the quality of the vegetables.
Drawings
FIG. 1 is a schematic view of a vegetable greenhouse with integrated functions of carbon-adding, temperature-controlling and irrigation;
FIG. 2 is a schematic view of a hydrate formation chamber;
in the figure: 1, a solar cell panel; 2, a storage battery; 3, a vegetable greenhouse; 4, a water reservoir; 5, a water pump; 6 a carbon dioxide cylinder; 7 a hydrate generation chamber; 8, cooling the circulating water bath machine; 9 a computer control system; 31 a first conduit; 32 a second conduit; 33 a sensor; 71 an inlet control valve; 72 water inlet control valves; 73 a pressure temperature sensor; 74 a cavity; 75 a stirrer; 76 a delivery pump; 77 cooling water outlet pipes; 78 cooling water control valve.
Detailed Description
The technical solutions of the present invention will be described in detail below in order to clearly understand the technical features, objects, and advantages of the present invention, but the present invention is not limited to the practical scope of the present invention.
Example 1
The embodiment provides a schematic diagram of a vegetable greenhouse integrating recarburization, temperature control and irrigation; the method comprises the following steps:
starting a cooling circulating water bath machine 8, and setting the temperature of cooling water at 3 ℃; after the temperature of the cooling water reaches the set temperature, opening a cooling water inlet control valve 78 of the hydrate generation chamber, filling the cavity 74 with the cooling water, and maintaining the temperature of the whole cooling chamber at 3 ℃; opening a water inlet control valve of the hydrate generation chamber, enabling water in the reservoir to enter the hydrate generation chamber through a water pump, closing the water inlet control valve after water injection is completed, opening a water injection control valve, and injecting carbon dioxide into the hydrate generation chamber to enable the pressure in the hydrate generation chamber to be maintained at 4.0MPa, and performing constant pressure generation of a hydrate;
after the gas injection is completed, the stirrer 75 is started, and stirring can provide more physical disturbance for the generation of the hydrate, accelerate the nucleation and growth of the crystal, and further accelerate the generation of the hydrate; after the hydrate is generated, the hydrate is conveyed to the first pipeline 31 of the vegetable greenhouse by opening the conveying pump 76, and the hydrate slurry is sprayed out through the nozzle and decomposed into gaseous carbon dioxide and water by heat absorption.
The sensor 33 monitors the carbon dioxide concentration in the greenhouse in real time and transmits the data to the computer system. According to the requirements for planting different vegetables, the optimum concentration and temperature values are set in the computer. When the concentration of the carbon dioxide is reduced, the delivery pump is started, the carbon dioxide hydrate is sprayed out through the first pipeline, meanwhile, the power of the delivery pump is adjusted in real time, the amount of the carbon dioxide hydrate sprayed out by the nozzle is controlled, and then the concentration of the carbon dioxide in the greenhouse is controlled at a set value.
When the sensor 33 detects that the concentration of the carbon dioxide in the greenhouse exceeds 50% of the most suitable concentration, and the hydrate can not be used for cooling at the moment, a direct cooling method is adopted, cooling water is conveyed to the greenhouse through the second pipeline 32, and the cooling water is sprayed to directly cool the greenhouse. Meanwhile, real-time detection and feedback adjustment are carried out on the temperature, and the temperature of the greenhouse is maintained within a set range.
The above example is one of the specific embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A vegetable greenhouse integrating recarburization, temperature control and irrigation is characterized by comprising a solar cell panel (1), a storage battery (2), a vegetable greenhouse (3), a water storage tank (4), a water pump (5), a carbon dioxide gas cylinder (6), a hydrate generation chamber (7), a cooling circulating water bath machine (8) and a computer control system (9);
a sensor (33), a first pipeline (31) and a second pipeline (32) are arranged in the vegetable greenhouse, and nozzles are uniformly arranged on the first pipeline and the second pipeline; the sensor (33) comprises a temperature sensor, a photosensitive sensor and a carbon dioxide concentration sensor;
the hydrate generating chamber (7) comprises a water inlet pipe and a water inlet control valve (72), a gas inlet pipeline and a water inlet control valve (71), a pressure and temperature sensor (73), a stirrer (75), a cooling water inlet pipeline and a cooling water control valve (78), a cooling water outlet pipeline (77) and a conveying pump (76) arranged at the outlet of the hydrate generating chamber;
the hydrate generation chamber is composed of an inner layer and an outer layer, the inner layer is made of a pressure-resistant metal material, the outer layer is made of a metal shell material and a heat-insulating material, and the heat-insulating material is positioned on the outermost layer; a cavity (74) is arranged between the inner layer material and the outer layer material and is used for filling cooling circulating water;
the outlet of the carbon dioxide gas cylinder (6) is connected with the gas inlet of the hydrate generation chamber (7), and the reservoir (2) is connected with the water inlet of the hydrate generation chamber (7) through a water pump (5); an outlet of the hydrate generating chamber (7) is connected with a first pipeline (31) through a delivery pump (76), and the hydrate delivered into the first pipeline is sprayed into the vegetable greenhouse through a nozzle; the second pipeline (32) is connected with the outlet of the cooling circulating water bath machine (8).
2. The vegetable greenhouse integrating recarburization, temperature control and irrigation as claimed in claim 1, wherein the pressure in the carbon dioxide gas cylinder is greater than 1.5MPa, and the temperature of the cooling circulating water is 0-7 ℃; the pressure and temperature in the hydrate generation are both required to be controlled above the carbon dioxide hydrate phase equilibrium curve.
3. The vegetable greenhouse integrating recarburization, temperature control and irrigation as claimed in claim 1, wherein the concentration of carbon dioxide in the vegetable greenhouse is controlled to be not less than 200ppm and not more than 3000 ppm; the temperature is controlled at 10-20 deg.C at night and 20-40 deg.C at day.
4. The vegetable greenhouse integrating recarburization, temperature control and irrigation as claimed in claim 1, wherein the electric energy required by all electric equipment in the system, including a cooling circulating water bath machine (8) and a computer control system (9), is obtained from a solar panel; the storage battery stores redundant electric energy.
5. The method for integrating the recarburization temperature-control irrigation into a vegetable greenhouse as claimed in any one of claims 1 to 4 is characterized by comprising the following steps of:
the first step is as follows: starting the cooling circulating water bath machine (8), opening a hydrate generation chamber cooling water control valve (78), and filling cooling water into the cavity (74);
the second step is that: opening a hydrate generation chamber water inlet control valve (72), enabling water in a reservoir to enter the hydrate generation chamber through a water pump, closing the water inlet control valve (72) after water injection is completed, opening a water inlet control valve (71), and injecting carbon dioxide into the hydrate generation chamber;
the third step: after the gas injection is finished, starting a stirrer (75); after the hydrate is generated, the hydrate is conveyed to a first pipeline (31) of the vegetable greenhouse through a conveying pump (76), and hydrate slurry is sprayed out through a nozzle and decomposed into gaseous carbon dioxide and water through heat absorption;
the fourth step: the power of a delivery pump (76) is adjusted in real time according to the concentration of the carbon dioxide in the greenhouse detected by a sensor (33), and the amount of the carbon dioxide hydrate sprayed out by a nozzle is controlled, so that the effect of controlling the concentration of the carbon dioxide in the greenhouse is achieved;
the fifth step: when the sensor (33) detects that the concentration of carbon dioxide in the greenhouse is too high and the hydrate cannot be used for cooling at the moment, a direct cooling method is adopted to convey cooling water to the greenhouse through a second pipeline (32), and the cooling water is sprayed to directly cool the greenhouse; meanwhile, real-time detection and feedback adjustment are carried out on the temperature, and the temperature of the greenhouse is maintained within a set range.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911141790.4A CN110810082B (en) | 2019-11-20 | 2019-11-20 | Vegetable greenhouse integrating recarburization, temperature control and irrigation and method |
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| CN201911141790.4A CN110810082B (en) | 2019-11-20 | 2019-11-20 | Vegetable greenhouse integrating recarburization, temperature control and irrigation and method |
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| CN110810082A true CN110810082A (en) | 2020-02-21 |
| CN110810082B CN110810082B (en) | 2021-11-05 |
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Citations (6)
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| KR20130090297A (en) * | 2012-02-03 | 2013-08-13 | 서희동 | Method for isolating carbon dioxide contained in exhaust gases into the bottom of the sea depths |
| JP2014057533A (en) * | 2012-09-14 | 2014-04-03 | Science Create Co Ltd | Plant cultivation system |
| CN103965983A (en) * | 2014-04-25 | 2014-08-06 | 常州大学 | Device and method adopting hydrate method to stably supply carbon for plant photosynthesis |
| CN108117076A (en) * | 2017-12-15 | 2018-06-05 | 浙江海洋大学 | A kind of carbon dioxide hydrate reaction unit and the method for improving its generation effect |
| CN208987423U (en) * | 2018-09-07 | 2019-06-18 | 刘波 | A kind of intelligence green house of vegetables |
| CN209376306U (en) * | 2018-10-16 | 2019-09-13 | 河北农业大学 | A kind of intelligent Greenhouse based on photovoltaic |
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2019
- 2019-11-20 CN CN201911141790.4A patent/CN110810082B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130090297A (en) * | 2012-02-03 | 2013-08-13 | 서희동 | Method for isolating carbon dioxide contained in exhaust gases into the bottom of the sea depths |
| JP2014057533A (en) * | 2012-09-14 | 2014-04-03 | Science Create Co Ltd | Plant cultivation system |
| CN103965983A (en) * | 2014-04-25 | 2014-08-06 | 常州大学 | Device and method adopting hydrate method to stably supply carbon for plant photosynthesis |
| CN108117076A (en) * | 2017-12-15 | 2018-06-05 | 浙江海洋大学 | A kind of carbon dioxide hydrate reaction unit and the method for improving its generation effect |
| CN208987423U (en) * | 2018-09-07 | 2019-06-18 | 刘波 | A kind of intelligence green house of vegetables |
| CN209376306U (en) * | 2018-10-16 | 2019-09-13 | 河北农业大学 | A kind of intelligent Greenhouse based on photovoltaic |
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