CN114431048B - Multifunctional complementary temperature control method for greenhouse - Google Patents
Multifunctional complementary temperature control method for greenhouse Download PDFInfo
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- CN114431048B CN114431048B CN202210085161.XA CN202210085161A CN114431048B CN 114431048 B CN114431048 B CN 114431048B CN 202210085161 A CN202210085161 A CN 202210085161A CN 114431048 B CN114431048 B CN 114431048B
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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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- 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
- A01G9/243—Collecting solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
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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
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Environmental Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Greenhouses (AREA)
Abstract
The invention provides a multifunctional complementary temperature control method for a greenhouse, which solves the technical problem that the existing greenhouse cannot ensure stable and continuous growth temperature of crops. The solar energy greenhouse comprises a photovoltaic unit, an air energy unit, a geothermal energy unit and a control unit, wherein the control unit controls the photovoltaic unit to generate and store electricity, monitors environmental parameters and controls the air energy unit and the geothermal unit to perform temperature compensation, the photovoltaic unit supplies power for the control unit, the air energy unit and the geothermal unit, the geothermal energy unit is fully utilized to cool or heat soil in the greenhouse body, and the phase change material is utilized to store redundant heat and cold energy so as to ensure that the temperature of circulating water is constant. According to the invention, various parameters of temperature and humidity, air pressure, illuminance and soil humidity in the greenhouse can be monitored in real time by utilizing various sensors, and when a certain parameter or parameters are not suitable for crop growth, the control unit can send out a command to drive the air energy unit and the geothermal energy unit to operate, so that the regulation and control of various parameters in the greenhouse are realized.
Description
Technical Field
The invention relates to the technical field of greenhouses for crop planting, in particular to a multifunctional complementary temperature control method for a greenhouse.
Background
As the first agricultural country in the world, china accumulates considerable experience and knowledge in agriculture, but most areas of China have the disadvantages of poor soil quality, deficient soil resources, complex and changeable climate conditions and the like, and the disadvantages are extremely unfavorable for the growth of crops. And with the progress of society, people engaged in agricultural production are gradually reduced, but the demand of society for agricultural products is gradually increased, the prior farming planting mode can not meet the demand of social development, and the traditional agriculture must be technically updated and reformed. Therefore, the development of modern agriculture and ecological agriculture in China is a necessary trend of agricultural development in the future.
Agricultural greenhouses are widely used in northern agricultural planting in China, but most greenhouses only adopt a pure sunlight mode to plant crops, so that the traditional greenhouse has large consumption and low income, and belongs to extensive agricultural planting. In addition, such conventional greenhouses are not friendly to off-season crops planted in the greenhouse because, as natural weather varies irregularly, sunlight alone cannot provide a stable and continuous energy supply for the crops, the temperature in the greenhouse is suddenly reduced in rainy days or nights, which is unfavorable for the growth of the crops.
Disclosure of Invention
The invention provides a multifunctional complementary temperature control method applied to a greenhouse, which solves the technical problem that the existing greenhouse cannot ensure stable and continuous growth temperature of crops.
The technical scheme for realizing the invention is as follows: the multifunctional complementary temperature control method for the greenhouse comprises a photovoltaic unit, an air energy unit, a geothermal energy unit and a control unit, wherein the control unit controls the photovoltaic unit to generate electricity and store electricity, controls the air energy unit and the geothermal energy unit to perform temperature compensation, and supplies power for the control unit, the air energy unit and the geothermal energy unit;
the photovoltaic unit comprises a photovoltaic plate, an inverter and a storage battery, and has three working modes: (1) when the solar energy is sufficient and the energy is not needed to be supplemented in the greenhouse, the energy generated by the photovoltaic panel is converted by the inverter and then is stored in the storage battery; (2) when the solar energy is sufficient and the energy is needed to be supplemented in the greenhouse, after the energy generated by the photovoltaic panel is converted by the inverter, one part of the energy is stored in the storage battery, and the other part of the energy drives other electric equipment to operate; (3) when solar energy cannot be utilized in overcast and rainy days or at night, all electric equipment in the greenhouse is powered by the storage battery;
the air energy unit comprises an air pressurizing fan and an air changing pump which are respectively arranged at two ends of the shed body;
the geothermal unit comprises a ground coil pipe arranged in the greenhouse body, a water inlet end and a water outlet end of the ground coil pipe are circularly connected with a ground source heat pump unit, the ground source heat pump unit is positioned outside the greenhouse body, an electric three-way reversing valve, a temperature control assembly and a circulating water pump are sequentially arranged between the ground source heat pump unit and the ground coil pipe, the temperature control assembly comprises a hot water temperature control water tank and a cold water temperature control water tank which are connected in parallel between the electric three-way reversing valve and the circulating water pump, water inlets of the hot water temperature control water tank and the cold water temperature control water tank are connected with the electric three-way reversing valve, water outlets of the hot water temperature control water tank and the cold water temperature control water tank are connected with the circulating water pump, a water storage cavity is arranged between the water inlet and the water outlet, and a phase change material is arranged on the periphery of the water storage cavity;
when the temperature in the greenhouse body rises, the control unit controls the electric three-way reversing valve to act, so that the circulating water of the ground source heat pump unit passes through the cold water temperature control water tank to cool the soil in the greenhouse body, and the phase change material of the cold water temperature control water tank regulates the temperature of the circulating water to ensure that the temperature of the circulating water is constant; when the temperature in the greenhouse body is reduced, the control unit controls the electric three-way reversing valve to act, so that the circulating water of the ground source heat pump unit passes through the hot water temperature control water tank to heat and raise the temperature of soil in the greenhouse body, and the phase change material of the hot water temperature control water tank regulates the temperature of the circulating water to ensure that the temperature of the circulating water is constant;
the control unit comprises a PLC control module, and an input module of the control module is connected with a temperature and humidity sensor, an air pressure sensor and an illumination sensor in the greenhouse body; the output module of the control module is connected with the relay module and the driving module, and the relay module controls the actions of the circulating water pump, the air pressurizing fan and the electric three-way reversing valve; the driving module of the control module controls the actions of the ground source heat pump unit and the air changing pump.
Further, the internal trunk water pipe and the hose that waters that sets up interconnect of canopy, the hose that waters sets up in irrigation canal, and the trunk water pipe is located the external water inlet end of canopy and sets up irrigation pump, relay module control irrigation pump action.
Further, the main water pipe is arranged along the length of the shed body, a plurality of watering hoses are arranged, and the plurality of watering hoses are arranged at equal intervals along the length direction of the main water pipe.
Further, a soil humidity sensor is arranged in the soil inside the shed body, and the soil humidity sensor is connected with the input module.
Further, set up the bracing piece along canopy body length direction, set up along the length direction of bracing piece temperature and humidity sensor, air pressure sensor, illumination sensor.
Further, the inside a plurality of light filling lamps that sets up of canopy, each light filling lamp are rectangular array distribution and with the inside planting district of canopy about relative, drive module control light filling lamp action.
Further, an electric door is arranged on the side wall of the shed body, and the driving module controls the electric door to act.
Further, the PLC control module is connected with a display screen, and various parameters in the greenhouse body and working state parameters of the photovoltaic unit, the air energy unit and the geothermal energy unit, which are monitored by the temperature and humidity sensor, the air pressure sensor and the illumination sensor, are displayed on the display screen.
Further, the photovoltaic panel is arranged on the rear wall of the shed body through the supporting frame.
According to the multifunctional complementary temperature control method for the greenhouse, provided by the invention, the temperature and humidity, the air pressure, the illuminance and the soil humidity in the greenhouse can be monitored in real time by utilizing various sensors, when a certain parameter or a plurality of parameters are unsuitable for crop growth, the control unit can send out a command to drive the air energy unit and the geothermal energy unit to operate, so that the regulation and control of the parameters in the greenhouse are realized, in addition, the electric quantity required by all equipment inside and outside the greenhouse is provided by the electric quantity stored in the storage battery by the photovoltaic unit, and under the condition that the geothermal energy, the solar energy and the air energy are complementary, the stability of the parameters in the greenhouse can be kept, thereby improving the yield of crops.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a greenhouse of the present invention;
FIG. 2 is a right side view of the greenhouse of the present invention;
FIG. 3 is a top view of the greenhouse of the present invention;
FIG. 4 is a control schematic of the present invention;
FIG. 5 is a view showing the installation state of the photovoltaic panel according to the present invention;
fig. 6 is a schematic cross-sectional view of a hot water temperature controlling tank or a cold water temperature controlling tank according to the present invention.
Reference numerals in the drawings: 1. the solar energy greenhouse comprises a greenhouse body, 2 parts of photovoltaic panels, 3 parts of inverters, 4 parts of storage batteries, 5 parts of water pumps, 6 parts of main water pipes, 7 parts of watering hoses, 8 parts of temperature and humidity sensors, 9 parts of air pressure sensors, 10 parts of illumination sensors, 11 parts of soil humidity sensors, 12 parts of air pressurizing fans, 13 parts of scavenging pumps, 14 parts of ground coils, 15 parts of hot water temperature control water tanks, 16 parts of cold water temperature control water tanks, 17 parts of electric three-way reversing valves, 18 parts of ground source heat pump units, 19 parts of light supplementing lamps, 20 parts of electric doors, 21 parts of control units, 22 parts of support rods, 23 parts of circulating water pumps, 24 parts of water storage cavities, 25 parts of water inlets, 26 parts of water outlets, 27 parts of phase change materials, 28 parts of PLC control modules, 29 parts of input modules, 30 parts of output modules, 31 parts of relay modules, 32 parts of drive modules, 33 parts of rear walls, 34 parts of side walls, 35 parts of display screens, 36 parts of support frames.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
The utility model provides a multi-energy complementary temperature control method for greenhouse, as shown in fig. 1-4, includes photovoltaic unit, air energy unit, geothermal energy unit and control unit 21, and control unit 21 controls photovoltaic unit and generates electricity and electric power storage, controls air energy unit and geothermal energy unit to carry out temperature compensation to the greenhouse inside, and photovoltaic unit is control unit 21, air energy unit and geothermal energy unit power supply. The photovoltaic unit comprises a photovoltaic panel 2, an inverter 3 and a storage battery 4, and has three working modes: (1) when the solar energy is sufficient and the energy is not needed to be supplemented in the greenhouse, the energy generated by the photovoltaic panel 2 is converted by the inverter 3 and then is stored in the storage battery 4; (2) when the solar energy is sufficient and the energy is needed to be supplemented in the greenhouse, after the energy generated by the photovoltaic panel 2 is converted by the inverter 3, one part of the energy is stored in the storage battery 4, and the other part of the energy drives other electric equipment to operate; (3) when solar energy cannot be utilized in overcast and rainy days or at night, all electric equipment in the greenhouse is powered by the storage battery 4.
The air energy unit comprises an air pressurizing fan 12 and a scavenging pump 13 which are respectively arranged at two ends of the shed body 1, the air pressurizing fan 12 regulates the air pressure in the shed body 1, and the scavenging pump 13 is used for auxiliary regulation of the air pressure in the shed body 1 when the air is replaced.
As shown in fig. 3 to 6, the geothermal unit includes a ground pipe 14 disposed inside the shed body 1, a water inlet end and a water outlet end of the ground pipe 14 are circularly connected with a ground source heat pump unit 18, and the ground source heat pump unit 18 uses a heat source or a cold source under the ground to regulate the soil temperature inside the shed body 1 by circulating water in the ground pipe 14. The ground source heat pump unit 18 is located the outside of the canopy body 1, electric three-way reversing valve 17, temperature control assembly and circulating water pump 23 are arranged between the ground source heat pump unit 18 and the ground coil 14 in sequence, the temperature control assembly comprises a hot water temperature control water tank 15 and a cold water temperature control water tank 16 which are connected in parallel between the electric three-way reversing valve 17 and the circulating water pump 23, water inlets 25 of the hot water temperature control water tank 15 and the cold water temperature control water tank 16 are connected with the electric three-way reversing valve 17, water outlets 26 are connected with the circulating water pump 23, a water storage cavity 24 is arranged between the water inlets 25 and the water outlets 26, and phase change materials 27 are arranged on the periphery of the water storage cavity 24. When the temperature in the greenhouse body 1 rises, the control unit 21 controls the electric three-way reversing valve 17 to act, so that the circulating water of the ground source heat pump unit 18 passes through the cold water temperature control water tank 16 to cool the soil in the greenhouse body 1, and the phase change material 27 of the cold water temperature control water tank 16 regulates the temperature of the circulating water to ensure that the temperature of the circulating water is constant; when the temperature in the greenhouse body 1 drops, the control unit 21 controls the electric three-way reversing valve 17 to act, so that the circulating water of the ground source heat pump unit 18 passes through the hot water temperature control water tank 15 to heat and raise the temperature of soil in the greenhouse body 1, and the phase change material 27 of the hot water temperature control water tank 15 regulates the temperature of the circulating water to ensure that the temperature of the circulating water is constant.
The control unit 21 comprises a PLC control module 28, an input module 29 of the control module 28 is connected with the temperature and humidity sensor 8, the air pressure sensor 9 and the illumination sensor 10 in the greenhouse body 1, and environmental parameters in the greenhouse body 1 are collected in real time. A supporting rod 22 is arranged along the length direction of the shed body 1, and the temperature and humidity sensor 8, the air pressure sensor 9 and the illumination sensor 10 are arranged along the length direction of the supporting rod 22; the output module 30 of the control module 28 is connected with the relay module 31 and the driving module 32, and the relay module 31 controls the actions of the circulating water pump 23, the air pressurizing fan 12 and the electric three-way reversing valve 17; the driving module 32 of the control module 28 controls the actions of the ground source heat pump unit 18 and the air changing pump 13, namely, the working states of the ground source heat pump unit 18, the air changing pump 13, the circulating water pump 23, the air pressurizing fan 12 and the electric three-way reversing valve 17 are adaptively adjusted according to the environmental parameters monitored by the sensors.
Further, a soil humidity sensor 11 is disposed in the soil inside the shed body 1, and the soil humidity sensor 11 is connected to the input module 29. The canopy body 1 is internally provided with a main water pipe 6 and a watering hose 7 which are connected with each other, the watering hose 7 is arranged in an irrigation ditch, the water inlet end of the main water pipe 6 outside the canopy body 1 is provided with an irrigation water pump 5, and the relay module 31 controls the action of the irrigation water pump 5 so as to adjust soil and air humidity. Specifically, the main water pipe 6 is arranged along the length of the shed body 1, the watering hoses 7 are arranged in a plurality, and the watering hoses 7 are arranged at equal intervals along the length direction of the main water pipe 6.
Further, the inside a plurality of light filling lamps 19 that sets up of canopy body 1, each light filling lamp 19 is rectangular array distribution and is relative from top to bottom with the inside planting district of canopy body 1, drive module 32 control light filling lamp 19 action, make full use of the clean energy that photovoltaic unit produced, fully guarantee the growth environment of crop.
Further, the electric door 20 is arranged on the side wall of the shed body 1, and the driving module 32 controls the electric door 20 to act, so that the electric door can be opened and closed in time when people get in or out, and the air pressure and the temperature and the humidity inside the shed body 1 can be adjusted by opening the electric door 20 when people are unattended.
Further, the PLC control module 28 is connected with a display screen 35, and various parameters in the shed body 1 and working state parameters of the photovoltaic unit, the air energy unit and the geothermal energy unit, which are monitored by the temperature and humidity sensor 8, the air pressure sensor 9 and the illumination sensor 10, are displayed on the display screen 35.
Specifically, the method comprises the following steps: the greenhouse body 1, wherein a rear wall 33 and side walls 34 on the left side and the right side of the greenhouse body 1 are rammed earth walls; the photovoltaic panel 2 is fixedly arranged on the upper half part of the inner side of the rear wall 34 through a supporting frame 36;
the inverter 3 is fixedly arranged on the outer side of the rear rammed earth wall;
a storage battery 4, wherein the storage battery 4 is fixedly arranged on the outer side of the rear rammed earth wall, and the storage battery 4 is adjacent to the inverter 3;
the water pump 5 is positioned on the right side of the shed body 1, and the output end of the water pump 5 is connected with a main water pipe 6 in the shed body 1; the main water pipe 6 is horizontally arranged in the shed body 1, and one end of the main water pipe 6 connected with the water pump 5 is closed;
the watering hose 7 is placed in the irrigation ditch, one end of the watering hose 7 is connected with evenly distributed water outlets on the main water pipe 6, and the other end of the watering hose 7 is an open end;
the temperature and humidity sensor 8 is positioned in the greenhouse body 1;
an air pressure sensor 9, wherein the air pressure sensor 9 is positioned in the shed body 1;
an illumination sensor 10, wherein the illumination sensor 10 is positioned in the greenhouse body 1;
a soil humidity sensor 11, wherein the soil humidity sensor 11 is positioned in the greenhouse body 1;
an air pressurizing fan 12, wherein the air pressurizing fan 12 is fixedly arranged on the shed body 1;
the air changing pump 13 is fixedly arranged on the shed body 1, and the air changing pump 13 is far away from one side of the air pressurizing fan 12;
a ground coil 14, wherein the ground coil 14 is positioned in the shed body 1 and laid below the soil, and the ground coil 14 is connected with a ground source heat pump unit 18;
the hot water temperature control water tank 15, wherein a water storage cavity 24 is arranged in the hot water temperature control water tank 15, and a first phase change material is arranged between the water storage cavity 24 and the hot water temperature control water tank 15;
a cold water temperature control water tank 16, wherein a water storage cavity 24 is arranged in the cold water temperature control water tank 16, and a second phase change material is arranged between the water storage cavity 24 and the cold water temperature control water tank 16;
the electric three-way reversing valve 17 is arranged on a circulating water loop at the water inlet side of the hot water temperature control water tank 15 and the water inlet side of the cold water temperature control water tank 16, one end of two water outlets of the electric three-way reversing valve 17 is connected with the hot water temperature control water tank 15, and the other end is connected with the cold water temperature control water tank 16;
the ground source heat pump unit 18, wherein the ground source heat pump unit 18 is arranged outside the shed body 1;
the light supplementing lamps 19, wherein the light supplementing lamps 19 can be uniformly distributed in the shed body 1 according to the requirements of crops; an electric door 20, wherein the electric door 20 is installed at one side of the booth body 1;
a control unit 21, wherein the control unit 21 is fixedly arranged on the shed body 1 and is close to the left side of the electric door 20;
the left end and the right end of the supporting rod 22 are inserted into the left rammed earth wall and the right rammed earth wall, and the temperature, humidity, illumination and air pressure sensors are bound on the supporting rod 22;
and a circulating water pump 23, wherein the circulating water pump 23 is arranged on a circulating water loop close to the outer side of the greenhouse.
The signals collected by the temperature and humidity sensor 8, the air pressure sensor 9, the illumination sensor 10 and the soil humidity sensor 11 are output to a display screen of the control unit 21, meanwhile, the control unit calculates to control whether various parameters meet the requirements and make feedback, the feedback signals are output to the relay module 31 to control the water pump 5, the air pressurizing fan 12, the electric three-way reversing valve 17 and the circulating water pump 23 to react, or the feedback signals are output to the driving module 32 to control the ground source heat pump unit 18, the electric door 20, the light supplementing lamp 19 and the air exchanging pump 13.
In this embodiment, the solar energy, solar energy and air energy multifunctional complementary greenhouse is used for controlling the light supplementing lamp 19, the water pump 5 and the air pressurizing fan 12 to automatically supplement light, supplement water and pressurize, meanwhile, the ground source heat pump unit 18 is used for improving the temperature in the greenhouse by using the ground heat energy, and the solar energy, solar energy and air energy multifunctional complementary greenhouse is used for detecting various parameters by using the sensors, and the control unit 21 is used for processing and analyzing the parameters, so that stable regulation and control of the various parameters in the greenhouse are realized. The requirements of the growth environments of different crops are compared, and the internal environment of the greenhouse is ensured to be always kept in a stable state.
The temperature control assembly comprises a hot water temperature control water tank 15 and a cold water temperature control water tank 16, a water storage cavity 24 is arranged inside the hot water temperature control water tank 15, a first phase change material is arranged between the water storage cavity 24 and the hot water temperature control water tank 15, a water storage cavity 24 is arranged inside the cold water temperature control water tank 16, a second phase change material is arranged between the water storage cavity 24 and the cold water temperature control water tank 16, the hot water temperature control water tank 15 and the cold water temperature control water tank 16 are connected with a circulating water loop, and the hot water temperature control water tank 15 and the cold water temperature control water tank 16 are arranged outside a greenhouse.
In rainy days or at night, the temperature inside the greenhouse is reduced, the control unit 21 commands the ground source heat pump unit 18 to heat, circulating water circulates in a loop, before entering the greenhouse, the circulating water flows through the hot water temperature control water tank 15 under the control of the electric three-way reversing valve 17, the circulating water enters from the water inlet at the upper end of the hot water temperature control water tank 15, when the water inlet temperature of the circulating water is lower than the phase change temperature of the first phase change material, the first phase change material releases heat, the temperature of the circulating water rises, when the temperature of the circulating water is higher than the phase change temperature of the first phase change material, the first phase change material absorbs heat, the temperature of the circulating water is reduced, therefore, the water flowing out of the hot water temperature control water tank 15 can always keep a constant higher temperature, and the circulating water exchanges heat through the ground coil 14 inside the greenhouse, and further the temperature inside the greenhouse is increased.
When the sunlight in noon is sufficient, the temperature in the greenhouse rises, the control unit 21 commands the ground source heat pump unit 18 to operate for refrigeration, circulating water circulates in a loop, before entering the greenhouse, the circulating water flows through the cold water temperature control water tank 16 under the control of the electric three-way reversing valve 17, the circulating water enters from the water inlet at the upper end of the cold water temperature control water tank 16, when the water inlet temperature of the circulating water is lower than the phase change temperature of the second phase change material, the second phase change material releases heat, the circulating water temperature rises, when the circulating water temperature is higher than the phase change temperature of the second phase change material, the second phase change material absorbs heat, the circulating water temperature decreases, therefore, water flowing out of the cold water temperature control water tank 16 can always keep a constant lower temperature, and the circulating water exchanges heat through the ground coil 14 in the greenhouse, so that the temperature in the greenhouse is reduced.
After the ground source heat pump unit 18 operates for a long time to heat and cool, the first phase change material and the second phase change material in the hot water temperature control water tank 15 and the cold water temperature control water tank 16 can respectively play roles of heat storage and cold storage, and at this time, the hot water temperature control water tank 15 and the cold water temperature control water tank 16 serve as heat storage and cold storage devices.
The beneficial effects of the multifunctional complementary greenhouse of geothermal energy, solar energy and air energy, which are provided by the invention, are not limited to the rammed earth wall type greenhouse, and other types of greenhouse bodies in actual life, such as upright post type greenhouse, venlo type greenhouse and the like, are suitable for the implementation mode of the multifunctional complementary greenhouse of geothermal energy, solar energy and air energy, which is provided by the invention.
The parts of the invention not described or described in detail are conventional technical means for those skilled in the art.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. A multi-energy complementary temperature control method for a greenhouse is characterized by comprising the following steps: the solar energy power generation and storage device comprises a photovoltaic unit, an air energy unit, a geothermal energy unit and a control unit (21), wherein the control unit (21) controls the photovoltaic unit to generate electricity and store electricity and controls the air energy unit and the geothermal energy unit to perform temperature compensation, and the photovoltaic unit supplies power for the control unit (21), the air energy unit and the geothermal energy unit;
the photovoltaic unit comprises a photovoltaic panel (2), an inverter (3) and a storage battery (4), and has three working modes: (1) when the solar energy is sufficient and the energy is not needed to be supplemented in the greenhouse, the energy generated by the photovoltaic panel (2) is converted by the inverter (3) and then is stored in the storage battery (4); (2) when the solar energy is sufficient and the energy is needed to be supplemented in the greenhouse, after the energy generated by the photovoltaic panel (2) is converted by the inverter (3), one part of the energy is stored in the storage battery (4), and the other part of the energy drives other electric equipment to operate; (3) when solar energy cannot be utilized in overcast and rainy days or at night, all electric equipment in the greenhouse is powered by a storage battery (4), and the air energy unit comprises air pressurizing fans (12) and air changing pumps (13) which are respectively arranged at two ends of the greenhouse body (1);
the geothermal energy unit comprises a ground coil (14) arranged inside a shed body (1), a water inlet end and a water outlet end of the ground coil (14) are circularly connected with a ground source heat pump unit (18), the ground source heat pump unit (18) is positioned outside the shed body (1), an electric three-way reversing valve (17), a temperature control assembly and a circulating water pump (23) are sequentially arranged between the ground source heat pump unit (18) and the ground coil (14), the temperature control assembly comprises a hot water temperature control water tank (15) and a cold water temperature control water tank (16) which are connected in parallel between the electric three-way reversing valve (17) and the circulating water pump (23), water inlets (25) of the hot water temperature control water tank (15) and the cold water temperature control water tank (16) are connected with the electric three-way reversing valve (17), water outlets (26) are connected with the circulating water pump (23), a water storage cavity (24) is arranged between the water inlets (25) and the water outlets (26), and the periphery of the water storage cavity (24) is provided with phase change materials (27);
when the temperature in the greenhouse body (1) rises, the control unit (21) controls the electric three-way reversing valve (17) to act, so that the circulating water of the ground source heat pump unit (18) passes through the cold water temperature control water tank (16) to cool the soil in the greenhouse body (1), and the phase change material (27) of the cold water temperature control water tank (16) regulates the temperature of the circulating water to ensure that the temperature of the circulating water is constant; when the temperature in the greenhouse body (1) is reduced, the control unit (21) controls the electric three-way reversing valve (17) to act, so that the circulating water of the ground source heat pump unit (18) is heated and warmed through the hot water temperature control water tank (15), and the phase change material (27) of the hot water temperature control water tank (15) is used for adjusting the temperature of the circulating water, so that the temperature of the circulating water is constant;
the control unit (21) comprises a PLC control module (28), and an input module (29) of the control module (28) is connected with a temperature and humidity sensor (8), an air pressure sensor (9) and an illumination sensor (10) in the greenhouse body (1); the output module (30) of the control module (28) is connected with the relay module (31) and the driving module (32), and the relay module (31) controls the actions of the circulating water pump (23), the air pressurizing fan (12) and the electric three-way reversing valve (17); the driving module (32) of the control module (28) controls the actions of the ground source heat pump unit (18) and the air changing pump (13);
in rainy days or at night, the temperature in the greenhouse is reduced, the control unit (21) commands the ground source heat pump unit (18) to operate for heating, circulating water circulates in a loop and reciprocates, before the circulating water enters the greenhouse, the circulating water flows through the hot water temperature control water tank (15) under the control of the electric three-way reversing valve (17), the circulating water enters from the water inlet at the upper end of the hot water temperature control water tank (15), when the temperature of the circulating water is lower than the phase change temperature of the first phase change material, the first phase change material releases heat, the temperature of the circulating water is increased, when the temperature of the circulating water is higher than the phase change temperature of the first phase change material, the first phase change material absorbs heat, the temperature of the circulating water is reduced, the circulating water flowing out of the hot water temperature control water tank (15) always keeps a constant and higher temperature, and the circulating water exchanges heat through the ground coil pipe (14) in the greenhouse, so that the temperature in the greenhouse is increased;
when the sunlight in noon is sufficient, the temperature in the greenhouse is increased, the control unit (21) commands the ground source heat pump unit (18) to operate for refrigeration, circulating water circulates in a loop, before the circulating water enters the greenhouse, the circulating water flows through the cold water temperature control water tank (16) under the control of the electric three-way reversing valve (17), the circulating water enters from the water inlet at the upper end of the cold water temperature control water tank (16), when the water inlet temperature of the circulating water is lower than the phase change temperature of the second phase change material, the second phase change material releases heat, the temperature of the circulating water is increased, when the temperature of the circulating water is higher than the phase change temperature of the second phase change material, the second phase change material absorbs heat, the temperature of the circulating water is reduced, the circulating water flowing out of the cold water temperature control water tank (16) always keeps a constant lower temperature, and the circulating water exchanges heat through the ground coil pipe (14) in the greenhouse, so that the temperature in the greenhouse is reduced;
after the ground source heat pump unit (18) runs for heating and refrigerating for a long time, the first phase change material and the second phase change material in the hot water temperature control water tank (15) and the cold water temperature control water tank (16) respectively play roles of heat storage and cold storage, and at the moment, the hot water temperature control water tank (15) and the cold water temperature control water tank (16) serve as heat storage and cold storage devices.
2. The method for controlling temperature of a greenhouse according to claim 1, wherein: the irrigation ditch is characterized in that a main water pipe (6) and a watering hose (7) which are connected with each other are arranged in the shed body (1), the watering hose (7) is arranged in the irrigation ditch, an irrigation water pump (5) is arranged at the water inlet end of the main water pipe (6) outside the shed body (1), and the relay module (31) controls the irrigation water pump (5) to act.
3. The method for controlling temperature of a greenhouse according to claim 2, wherein: the utility model discloses a greenhouse, including canopy body (1), main water pipe (6) and hose (7) are provided with a plurality of, hose (7) are watered to a plurality of length direction equidistant setting along main water pipe (6).
4. A multi-energy complementary temperature control method for a greenhouse according to any one of claims 1-3, characterized in that: soil humidity sensor (11) is arranged in soil inside the shed body (1), and the soil humidity sensor (11) is connected with the input module (29).
5. The method for multi-energy complementary temperature control of a greenhouse of claim 4, wherein: the support rod (22) is arranged along the length direction of the greenhouse body (1), and the temperature and humidity sensor (8), the air pressure sensor (9) and the illumination sensor (10) are arranged along the length direction of the support rod (22).
6. The method for controlling temperature of a greenhouse according to any one of claims 1 to 3 and 5, wherein: the greenhouse is characterized in that a plurality of light supplementing lamps (19) are arranged in the greenhouse body (1), the light supplementing lamps (19) are distributed in a rectangular array and are vertically opposite to a planting area in the greenhouse body (1), and the driving module (32) controls the light supplementing lamps (19) to act.
7. The method for multi-energy complementary temperature control of a greenhouse of claim 6, wherein: an electric door (20) is arranged on the side wall of the shed body (1), and the driving module (32) controls the electric door (20) to act.
8. The method for controlling temperature of a greenhouse according to any one of claims 1 to 3, 5 and 7, wherein: the PLC control module (28) is connected with a display screen (35), and the display screen (35) displays various parameters in the shed body (1) and working state parameters of the photovoltaic unit, the air energy unit and the geothermal energy unit, which are monitored by the temperature and humidity sensor (8), the air pressure sensor (9) and the illumination sensor (10).
9. The method for multi-energy complementary temperature control of a greenhouse of claim 8, wherein: the photovoltaic panel (2) is arranged on the rear wall (33) of the shed body (1) through a supporting frame (36).
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| CN119536427B (en) * | 2024-11-25 | 2025-08-15 | 山东旭利来清洁能源科技有限公司 | Control system for adjusting temperature and humidity in greenhouse |
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| JP3670551B2 (en) * | 2000-03-23 | 2005-07-13 | 株式会社ラジアント | Soil heating method and house cultivation equipment used therefor |
| WO2012074519A1 (en) * | 2010-12-01 | 2012-06-07 | Aquatherm Industries, Inc. | Process for controlling the temperature of a horticultural product |
| KR200465694Y1 (en) * | 2011-01-29 | 2013-03-11 | 김성열 | vinyl house heating system which used underground water and the double vinyl |
| CN104025947B (en) * | 2014-05-20 | 2016-03-30 | 张家港永联天天鲜配送有限公司 | A kind of self-loopa green house |
| EP3226679A1 (en) * | 2014-10-24 | 2017-10-11 | Fodder Solutions Holdings Pty Ltd Of | Fodder growing system and method |
| JP2016106556A (en) * | 2014-12-04 | 2016-06-20 | 株式会社 Ｊ Ａｎｄ Ｋ | Plant cultivation system |
| CN107318520A (en) * | 2017-07-05 | 2017-11-07 | 佛山杰致信息科技有限公司 | Photovoltaic agricultural greenhouse |
| CN209768404U (en) * | 2019-04-08 | 2019-12-13 | 南充职业技术学院 | Agricultural greenhouse irrigation device based on internet of things |
| CN210275311U (en) * | 2019-06-09 | 2020-04-10 | 宝鸡文理学院 | Air energy, solar energy multi-energy complementary greenhouse |
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