CN107466573B - Water, fertilizer, gas and heat integrated drip irrigation intelligent control device and control method - Google Patents
Water, fertilizer, gas and heat integrated drip irrigation intelligent control device and control method Download PDFInfo
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- CN107466573B CN107466573B CN201710829323.5A CN201710829323A CN107466573B CN 107466573 B CN107466573 B CN 107466573B CN 201710829323 A CN201710829323 A CN 201710829323A CN 107466573 B CN107466573 B CN 107466573B
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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
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/04—Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
- A01C23/042—Adding fertiliser to watering 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model provides an intelligent control device is driped irrigation in integration of liquid manure gas heat, including the water preparation unit, the buffer unit that communicate together and with the control unit of the equal electricity federation of water preparation unit, buffer unit, water preparation unit is equipped with instant heating type water heating controller on the water preparation tank inlet line including water preparation jar, the water preparation jar inlet line of left side intercommunication and the water preparation jar outlet line of right side intercommunication, water preparation jar inlet line, and the pipeline that instant heating type water heating controller is the hou mian has connected in parallel fertilizer applicator, and it has aeration equipment still to communicate on the water preparation jar, instant heating type water heating controller, aeration equipment and fertilizer applicator all are connected with the control unit. Compared with the prior art, the invention realizes water, fertilizer, gas and heat integrated intelligent control irrigation, has good stability, greatly improves the utilization efficiency and the automation level of crop water and fertilizer, and the automatic control unit can complete the processes of oxygenation, fertilizer adding, water feeding and irrigation within preset time, and improves the irrigation management efficiency.
Description
Technical Field
The invention relates to the technical field of agriculture, in particular to a water, fertilizer, gas and heat integrated drip irrigation intelligent control device and a control method.
Background
Water, fertilizer, gas and heat are indispensable factors in the growth and development process of plants, the coordinated supply of water, fertilizer, gas and heat is the guarantee of high yield and quality of crops, the underground drip irrigation technology has the advantages of high water conservation, fertilizer saving, accuracy, high efficiency and the like, and is increasingly applied to agricultural irrigation, but the conventional underground drip irrigation can displace air in soil pores to cause poor soil ventilation condition, the root system of the crops often generates low oxygen stress to inhibit the growth of the crops, an underground drip irrigation system is utilized to convey oxygen-enriched water or oxygen-containing water, fertilizer and gas mixture to the root area of the crops, and the conditions of the soil water, fertilizer, gas and heat in the root area are coordinated to promote the growth of the crops and improve the yield. The application range of the oxygen-enriched water (or micro-nano bubble water) is limited mainly because no equipment is available for preparing a large amount of irrigation water sources and no water, fertilizer and gas heating intelligent dropper is available for controlling irrigation.
In the irrigation process, how to mix air into water to form a uniform water-air mixture and realize intelligent control is a problem which needs to be researched and solved urgently, if the air and the water are mixed unevenly, most of generated bubbles are concentrated on the upper half part of a pipeline, and the improvement effect of the root system oxygen environment is limited in practical application. At present, physical aeration and oxygen doping are mostly adopted abroad, namely air or nutrient solution is sucked into a throat by a Venturi ejector to form pressure flow and enters a main pipeline, and the water, fertilizer and gas integration can be realized by assembling more than two Venturi ejectors.
Under the condition of bearing pressure, the process of cyclic aeration, static mixing and aeration releaser is adopted, 20-40 mg/L oxygen-enriched water can be rapidly prepared, and then the water source reaching the requirement is rapidly transferred to a storage tank through irrigation pressurization to the prepared water, so that a certain amount of oxygen-enriched water can be prepared in advance through a customized irrigation scheme, the purpose of continuous irrigation is realized, and the problem of insufficient prepared water is solved to a certain extent. Meanwhile, aiming at the problem that the irrigation water temperature in the northeast and northwest areas is too low, an instant heater is additionally arranged at the water inlet section, the irrigation water temperature is rapidly increased to 25 ℃, and the inhibition of plant growth caused by too low water temperature is avoided. According to the utilization characteristics of different crops to water and fertilizer, different water and fertilizer application schemes are customized, and intelligent dropper control irrigation is realized.
Disclosure of Invention
The invention aims to solve the technical defects and provides a water, fertilizer, gas and heat integrated drip irrigation intelligent control device and a control method.
In order to achieve the above object, the idea is as follows: the circulating aeration device is combined with the Venturi fertilizer applicator to form a uniform water-fertilizer-gas mixture, meanwhile, the instant heating controller is installed at the water inlet end to form a water source for irrigation, fertilizer-gas-heat integrated regulation and control, the irrigation water source is stored in the water storage tank, and the water production process utilizes a digital instrument to realize intelligent control.
The technical scheme of the invention is as follows:
the utility model provides an intelligent control device is driped irrigation in integration of liquid manure gas heat, including the water preparation unit, the buffer unit that communicate together and with the control unit of the equal electricity federation of water preparation unit, buffer unit, water preparation unit includes water preparation jar 12, the water preparation jar inlet pipe way of water preparation jar 12 left side intercommunication and the water preparation jar outlet pipe way of right side intercommunication, is equipped with instant heating type water heating controller 4 on the water preparation jar inlet pipe way, and the last parallel connection of pipeline at instant heating type water heating controller 4 hou mian has fertilizer applicator, and it has aeration equipment still to communicate on the water preparation jar 12, instant heating type water heating controller 4, aeration equipment and fertilizer applicator all are connected with the control unit.
The aeration device is a Venturi aeration device 19, the lower part of the left side of the water making tank 12 is communicated with a water inlet check valve 11 and the Venturi aeration device 19 from bottom to top, the water inlet check valve 11 is arranged on a water making tank water inlet pipeline, the lower part of the right side of the water making tank 12 is communicated with a water guide check valve 22 and a dissolved oxygen controller-temperature transmitter 15 from bottom to top, the water guide check valve 22 is arranged on a water making tank water outlet pipeline, the top of the water making tank is provided with a water making tank pressure transmitter 16, a water making tank floating ball liquid level meter 17 and a pressure regulator 26, the bottom of the water making tank is provided with a water making tank blow-off valve 14, and the water inlet check valve 11, the water guide check valve 22, the dissolved oxygen controller-temperature transmitter 15, the water making tank pressure transmitter 16, the water making tank floating ball.
The water outlet pipeline of the water making tank is sequentially connected with a water guide check valve 22, a water guide electromagnetic valve 23, a water outlet valve 24 and a water guide quick connector 25 in series, and the water guide electromagnetic valve 23 and the water outlet valve 24 are both connected with the control unit.
One end of a water inlet pipeline of the water preparation tank is communicated with a water inlet quick connector 1, a water inlet manual valve 2, a filter I3, an instant heating type water heating controller 4, a water preparation tank water inlet electromagnetic valve 5, a flowmeter 6 and a fertilizer absorption manual valve I7 are sequentially connected in series from the water inlet quick connector 1 to a water inlet check valve 11, a parallel pipeline is divided from the front end of the water inlet check valve 11, a fertilizer absorption manual valve II 8, a fertilizer applicator and a fertilizer absorption manual valve III 10 are sequentially arranged from front to back, the fertilizer applicator is a Venturi fertilizer applicator 9, and the water inlet manual valve 2, the water preparation tank water inlet electromagnetic valve 5, the flowmeter 6, the fertilizer absorption manual valve I7, the fertilizer absorption manual valve II 8 and the fertilizer absorption manual valve III 10 are all connected with a control unit.
The venturi aeration device 19 is divided into two pipelines after being connected with the self-made water tank 12, wherein one pipeline enters from the top of the water making tank 12 through a self-priming circulating pump 20 and a static mixer 21 and is communicated with an aeration gas-liquid releaser 13 above the inside of the water making tank 12, the other pipeline is communicated with a pressure regulator 26 at the top of the water making tank 12 through a gas-liquid mixing valve 18, and the self-priming circulating pump 20, the static mixer 21, the aeration gas-liquid releaser 13, the gas-liquid mixing valve 18 and the pressure regulator 26 are all connected with a control unit.
The floating ball liquid level meter 17 of the water making tank is provided with a low water level, a medium water level and a high water level from bottom to top, and the water inlet pipe intersection and the water outlet pipe intersection of the water making tank 12 are both positioned below the low water level of the floating ball liquid level meter 17 of the water making tank.
The control unit comprises a PLC 35, an automatic indicator light 36, a manual indicator light 37, a power indicator light 38, an air pump indicator light 39, an emergency stop switch 40, a buzzer 41, a power switch 42, an air pump switch 43, a pressure regulator pressure relief switch 44 and a pressure regulator pressurization switch 45.
The buffer unit comprises a water storage tank 28, the water storage tank 28 is communicated with the water making tank 12 through a water storage tank water inlet pipeline quick connector 27, the top of the water storage tank 28 is provided with a water storage tank pressure transmitter 33 and a water storage tank floating ball liquid level meter 34, the bottom of the water storage tank is provided with a water storage tank blow-down valve 29, the tail end of the water storage tank 28 is communicated with a water outlet pipeline, the water outlet pipeline is sequentially provided with a water storage tank water outlet manual valve 30, a filter II 31 and a water storage tank water outlet electromagnetic valve 32, and the water storage tank pressure transmitter 33, the water storage tank floating ball liquid level meter 34, the water storage tank water outlet manual valve 30.
The water storage tank floating ball liquid level meter 34 is provided with five water levels of low water level, middle water level, high water level and high water level, and the water inlet and the water outlet of the water storage tank 28 are both positioned below the low water level of the water storage tank floating ball liquid level meter 34.
The control unit is provided with an automatic mode, a reservation mode or/and a manual mode, and the control method of the intelligent control device for drip irrigation with water, fertilizer, gas and heat integration specifically comprises the following steps:
1. communicating a water inlet quick connector 1 of a water production tank with a pressure water supply source, and communicating a water outlet pipeline of the water storage tank with an underground drip irrigation pipeline;
2. starting a power key of a control unit, starting an air pump switch 43, entering a parameter setting interface to set the water preparation pressure of a water preparation tank, the fertilization rate, the water storage pressure of the water storage tank, the upper and lower limits regulated and controlled by a pressure controller, the dissolved oxygen content or the cyclic aeration time, the total water preparation amount, the irrigation water level of the water storage tank and the water temperature;
3. after the parameter setting is finished, an automatic mode is clicked, and the device automatically enters the processes of water inlet, water production, water diversion, water storage, irrigation and the like;
4. the reservation mode can set the starting time of the device on the basis of the automatic mode, and the device can be automatically started when the preset time is reached;
5. if a manual mode is adopted, the opening and closing of the valve are required to be manually adjusted, and the following operations are mainly carried out:
a. opening a water inlet electromagnetic valve of the water making tank and a pressure relief switch of the pressure regulator to enable the water making tank to be in a water inlet state;
b. selecting whether to open the Venturi fertilizer applicator or not;
c. after water inflow is finished, closing the water inflow electromagnetic valve 5 of the water making tank and the pressure relief switch 44 of the pressure regulator, opening the pressure boost switch 45 of the pressure regulator, and simultaneously starting the self-priming circulating pump 20, so that the water in the water making tank 12 enters the water making tank 12 after being aerated through the Venturi aeration device 19 and the static mixer 21;
d. after the water making process is finished, a pressure regulator pressurizing switch 45 is opened to pressurize the water making tank 12, a water guide electromagnetic valve 23 on a water outlet pipeline of the water making tank is opened, and water is guided to the water storage tank 28 through the pressure difference between the water making tank 12 and the water storage tank 28;
e. under the manual mode, the irrigation water temperature, the irrigation water quantity and the irrigation time can be set, the aeration time is set, or the threshold value of the dissolved oxygen of the irrigation water is set, so that the irrigation of different soils and different crops is realized.
Compared with the prior art, the system has the technical effects that the water, fertilizer, air and heat integrated intelligent control irrigation is realized, the stability is good, the water and fertilizer utilization efficiency and the automation level of crops are greatly improved, the automatic control unit can complete the processes of oxygenation, fertilizer adding, water feeding and irrigation within preset time, and the irrigation management efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the water production unit of the present invention.
Fig. 2 is a schematic structural diagram of a buffer unit according to the present invention.
Fig. 3 is a schematic diagram of the structure of the control unit of the present invention.
Fig. 4 is a schematic structural diagram of the communication between the water making unit and the buffer unit.
In the attached figure 1: 1 water inlet quick joint, 2 water inlet manual valve, 3 filter I, 4 instant heating type water heating controller, 5 water making tank water inlet electromagnetic valve, 6 flow meter, 7 fertilizer absorbing manual valve I, 8 fertilizer absorbing manual valve II, 9 Venturi fertilizer applicator, 10 fertilizer absorbing manual valve III, 11 water inlet check valve, 12 water making tank, 13 aeration gas-liquid releaser, 14 water making tank blow-down valve, 15 dissolved oxygen controller-temperature transmitter, 16 water making tank pressure transmitter, 17 water making tank floating ball liquid level meter, 18 gas-liquid mixing valve, 19 Venturi aeration device, 20 self-suction circulating pump, 21 static mixer, 22 water guide check valve, 23 water guide electromagnetic valve, 24 water outlet valve, 25 water guide quick joint and 26 pressure regulator.
In the attached fig. 2: 27 water storage tank water inlet pipeline quick connector, 28 water storage tank, 29 water storage tank blow-down valve, 30 water storage tank water outlet hand valve, 31 filter II, 32 water storage tank water outlet electromagnetic valve, 33 water storage tank pressure transmitter, 34 water storage tank float level meter.
In FIG. 3: 35 PLC controller, 36 automatic indicator light, 37 manual indicator light, 38 power indicator light, 39 air pump indicator light, 40 scram switch, 41 buzzer, 42 power switch, 43 air pump switch, 44 pressure regulator pressure relief switch and 45 pressure regulator pressurization switch.
Detailed Description
The utility model provides a water, fertilizer, gas and heat integration intelligent control device that drips irrigation, includes system water unit, buffer unit and the control unit.
As shown in fig. 1, the water preparation unit comprises a water preparation tank 12, the lower part of the left side of the water preparation tank 12 is communicated with a water inlet check valve 11 and a venturi aeration device 19 from bottom to top, the lower part of the right side of the water preparation tank 12 is communicated with a water guide check valve 22 and a dissolved oxygen controller-temperature transmitter 15 from bottom to top, the dissolved oxygen controller-temperature transmitter 15 is used for monitoring the temperature and the dissolved oxygen content of water in the water preparation tank 12, the top is provided with a water preparation tank pressure transmitter 16 for controlling the air pressure in the water preparation tank 12, a water preparation tank floating ball liquid level meter 17 and a pressure regulator 26 for controlling the water level in the water preparation tank 12, and the bottom is provided with a water preparation tank blow-off valve 14.
The left side of a water making tank 12 is communicated with a water inlet pipeline of the water making tank, the front end of a water inlet check valve 11 is provided with a water and fertilizer inlet control pipeline, one end of the water inlet pipeline of the water making tank is communicated with a water inlet quick connector 1, the pipeline is sequentially connected in series with a water inlet manual valve 2, a filter 3, an instant heating type water heating controller 4, a water inlet electromagnetic valve 5 of the water making tank, a flowmeter 6 and a fertilizer absorbing manual valve I7 from the water inlet quick connector 1 to the water inlet check valve 11, the pipeline is a water inlet pipeline, the instant heating type water heating controller 4 controls heating, the fertilizer absorbing manual valve I7 and the fertilizer absorbing manual valve II 8 respectively control water inlet and fertilizer adding, the other parallel pipeline is arranged at the front end of the water inlet check valve 11 and used for controlling whether fertilizer application is performed or not, the front end of the water inlet check valve 11 is combined with the water inlet pipeline, the fertilizer absorbing manual valve II 8, a Venturi fertilizer applicator 9 and a fertilizer absorbing manual valve 10 are sequentially, the 9 Venturi fertilizer applicator can regulate and control whether fertilizer is mixed in water flow flowing into the water preparation tank or not by opening and closing related electromagnetic valves on the water inlet pipeline of the water preparation tank.
The venturi aeration device 19 is connected from the water producing tank 12 and then divided into two pipelines to form a parallel pipeline, wherein one pipeline is a circulating water loop, the loop enters from the top of the water producing tank 12 through a self-suction circulating pump 20 and a static mixer 21 and is communicated with an aeration gas-liquid releaser 13 above the inside of the water producing tank 12, the venturi aeration device 19 and the self-suction circulating pump 20 aerate the stored water in the water producing tank 12, then the stored water is mixed through the static mixer 21, the water-gas mixing performance is further improved through the aeration gas-liquid releaser 13, the aerated water is returned to the water producing tank 12, and the other pipeline is an aeration pipeline and is communicated to a pressure regulator 26 at the top of the water producing tank 12 through a gas-liquid mixing valve 18 to provide pressure aeration.
The circulating water pipeline and the aeration pipeline in the water making tank are connected in parallel to form a circulating aeration system, water in the water making tank enters a Venturi aeration device 19 pipeline through a water inlet of the circulating water pipeline, first aeration is carried out through the Venturi aeration device 19, the mixed gas comes from the water making tank 12, then passes through a self-absorption circulating pump 20, water-fertilizer-gas mixed fluid flows into a static mixer 21, second aeration is carried out, and finally the mixed fluid flows into the water making tank 12 through an aeration gas-liquid releaser 13, if the air pressure in the water making tank 12 is reduced in the process, the pressure of the water making tank in the water making process is stabilized through a pressure regulator 26, the operation is repeated in this way until the dissolved oxygen of the water in the water making tank 12 reaches an expected value, and the self-absorption circulating pump 20 provides energy for water flow movement in.
The water making tank floating ball liquid level meter 17 is provided with three water levels of a low water level, a middle water level and a high water level from bottom to top, the distance between the adjacent water levels is not less than 15cm, the distance between the high water level and the top end of the water making tank 12 is not less than 8cm, and the water inlet pipe intersection and the water outlet pipe intersection of the water making tank 12 are both positioned below the low water level of the water making tank floating ball liquid level meter 17.
The right side of the water making tank 12 is communicated with a water outlet pipeline of the water making tank, a water guide check valve 22, a water guide electromagnetic valve 23, a water outlet valve 24 and a water guide quick connector 25 are sequentially connected in series on the water outlet pipeline, and the water outlet pipeline provides oxygen making water for the buffer unit.
When the irrigation area is great, can connect water storage tank 28 on the water production tank goes out the water piping connection, water storage tank 28's effect will reach the fluid of predetermineeing dissolved oxygen value, it stores to leading-in to water storage tank 28, water storage tank 28's delivery port links to each other with the drip irrigation pipeline, directly go out water from water storage tank 28 during the irrigation water, can realize making water and irrigation process mutual noninterference like this, the user can be through processes such as manual control intaking-making water-water guide-irrigation, also can set for the parameter and open automatic mode or make an appointment the irrigation mode, wherein the irrigation mode of making an appointment promptly through predetermineeing parameters such as water time and water making quantity, water making, irrigation, convenient and fast.
As shown in fig. 2, the buffer unit includes a water storage tank 28, the water storage tank 28 is communicated with the water preparation tank 12 through a water storage tank water inlet pipeline quick connector 27, the water outlet pipeline of the water preparation tank 12 is connected with the water inlet of the water storage tank 28, the water outlet of the water preparation unit is received, the prepared aeration water in the water preparation unit is introduced, the top of the water storage tank 28 is provided with a water storage tank pressure transmitter 33, a water storage tank floating ball liquid level meter 34 for controlling the water level in the water storage tank 28, the water storage tank pressure transmitter 33 can control the air pressure in the water storage tank 28 and carry out pressure stabilization, the solubility and the detention time of the oxygen in the water storage tank can be improved under the pressurization condition, the oxygen enrichment performance of the irrigation water is ensured.
The bottom of the water storage tank 28 is provided with a blowoff valve 29 of the water storage tank for discharging inferior water in the water storage tank, the end of the water storage tank 28 is communicated with a water outlet pipeline, a manual water outlet valve 30 of the water storage tank, a filter 31 and a water outlet electromagnetic valve 32 of the water storage tank are sequentially arranged on the water outlet pipeline, and the manual water outlet valve 30 of the water storage tank and the water outlet electromagnetic valve 32 of the water storage tank are respectively used for manually and automatically controlling the water outlet of the water storage tank 28.
But water storage tank floater level gauge 34 automatic monitoring water level to whether supply the aeration water that makes in the system water pitcher according to water level automatic control, water storage tank floater level gauge 34 divide into 5 water level lines, is low water level, well water level, high water level respectively, and low water level is apart from water storage tank bottom and high water level all not less than 20cm from the water storage tank top, and water storage tank 28 advances, the delivery port all is located the below of water storage tank floater level gauge 34 low water level.
The control unit is used for displaying and controlling the temperature, the water level and the dissolved oxygen level of the water production unit, and automatically controlling the water inlet and outlet and the fertilizer absorbing electromagnetic valves to realize the automatic control of the water, fertilizer and gas heat. The valve to be opened and closed can be manually adjusted through data transmitted by each sensor.
As shown in fig. 3, the control unit mainly comprises a PLC controller, an indicator light, a buzzer and a switch, and the PLC controller 35 is a human-computer interface for displaying and reading data such as flow rate, time, pressure, temperature and water level. The indicator lamps comprise an automatic indicator lamp 36, a manual indicator lamp 37, a power indicator lamp 38 and an air pump indicator lamp 39, the automatic indicator lamp 36 is in an automatic control state when being turned on, the manual indicator lamp 37 is in a manual operation state when being turned on, the power indicator lamp 38 is turned on to indicate that the total power supply is turned on, otherwise, the total power supply is in an off state, and the air pump indicator lamp 39 is turned on to indicate that the air pump power supply is turned on, otherwise, the air pump indicator lamp is in an off state. The emergency stop switch 40 is used for manual emergency stop when a fault occurs, the buzzer 41 is used for completing water making prompt audible and visual alarm, the power switch 42 is used for controlling the on-off of a power supply, the air pump switch 43 is used for controlling a system main power supply and an air pump power supply, and the pressure regulator pressure relief switch 44 and the pressure regulator pressure increasing switch 45 are used for manual operation of the pressure regulator.
The control method of the intelligent control device for drip irrigation with integration of water, fertilizer, gas and heat can set parameters, enter an automatic mode or a reservation mode, and also select a manual mode for manual regulation and control, and specifically comprises the following steps:
(1) the water inlet quick connector 1 of the water making tank 12 is communicated with a pressure water supply source, and the water outlet pipeline of the water storage tank 28 is communicated with an underground drip irrigation pipeline.
(2) And (3) starting a power key of a control unit, starting an air pump switch 43, entering a parameter setting interface to set parameters such as the water preparation pressure of a water preparation tank, the fertilization rate, the water storage pressure of the water storage tank, the upper and lower limits regulated and controlled by a pressure controller, the dissolved oxygen content or the cyclic aeration time, the total water preparation amount, the irrigation water level of the water storage tank, the water temperature and the like, wherein when the irrigation water level of the water storage tank reaches the water level, the water outlet electromagnetic valve of the water storage tank is opened in an automatic mode or an appointment mode, and the water storage.
When the air pressure in the water production tank is higher than the set limit value of the pressure safety valve, the pressure safety valve automatically releases air until the pressure reaches the set limit value, when the air pressure in the water production tank is lower than the set pressure value, the pressure is increased through the pressure regulator 26 until the pressure reaches the set limit value, and the pressure control in the water storage tank is similar to the pressure control of the water production tank.
(3) After the parameter setting is finished, an automatic mode is clicked, and the device automatically enters the processes of water inlet, water production, water diversion, water storage, irrigation and the like; when having water and water level when making the water pitcher when the device power was opened and being higher than the water level in making the water pitcher, click automatic mode after-device will omit the water intaking process, directly get into the system water process, when having water and water level in making the water pitcher when the device power was opened and being less than the water level in making the water pitcher, click automatic mode after-device will intake and begin the system water process behind the system water pitcher high water level, after setting up the system water volume, when the device last system water level does not reach the water level in making the water pitcher and just reaches the design system water volume, the device can force into water to well water level.
(4) The reservation mode can set the device start time on the basis of the automatic mode, and the device will start by itself when the preset time is reached.
(5) The device can check information such as water production amount, irrigation amount, fertilization amount, irrigation time and the like in the past through a historical report.
(6) If a manual mode is adopted, the device finishes the processes of water inlet, water production, water guide, water storage, irrigation and the like, and the opening and closing of a valve are manually adjusted, and the device mainly performs the following operations:
a. starting a water inlet electromagnetic valve 5 of the water making tank and a pressure relief switch 44 of the pressure regulator to enable the water making tank to be in a water inlet state; when making water tank water level in be less than the water level in, make water tank floater level gauge 17 issue instruction system water tank solenoid valve 5 that intakes and open, begin to supply water to system water tank 12, venturi fertilizer applicator 9 begins work simultaneously, the in-process of intaking, system water tank solenoid valve 5 that intakes, pressure regulator pressure release switch 44 is opened always, whether open venturi fertilizer applicator 9 according to actual need selection, if needs, open venturi fertilizer applicator 9 back liquid manure and mix the liquid and enter into system water tank 12, when making water tank water level in rise to the high water level, the process of intaking is accomplished.
b. After water is fed, a water feeding electromagnetic valve 5 of the water making tank and a pressure regulator pressure relief switch 44 are closed, a pressure regulator pressurizing switch 45 is opened, when the pressure of the water making tank 12 reaches a limit value, the pressure regulator 26 stabilizes the pressure of the water making tank 12, the self-priming circulating pump 20 is started in the water making process, water in the water making tank enters a circulating water pipeline, a Venturi aeration device 19 is connected to the circulating water pipeline in parallel, the Venturi aeration device 19 is connected with the pressure regulator 26, water and fertilizer mixed fluid is subjected to primary aeration through the Venturi aeration device 19, the aerated gas comes from the water making tank 12 and then passes through the self-priming circulating pump 20, the water and fertilizer mixed fluid flows into a static mixer 21 to be subjected to secondary aeration, and then the water and fertilizer mixed fluid flows into the water making tank 12 through an aerated gas-liquid releaser 13. In the process, the dissolved oxygen in the circulating pipeline comes from the water production tank 12, so that the air pressure of the water production tank 12 is reduced, the pressure regulator 26 presses the air into the water production tank 12, the pressure is stabilized, and the process is repeated continuously. In the process, the dissolved oxygen controller-temperature transmitter 15 can detect the water flow flowing into the water preparation tank 12 from the circulating water pipeline in real time until the dissolved oxygen value of the water flow in the water preparation tank 12 reaches a preset value, and water preparation is finished.
c. And (5) completing the water making process and entering a water guiding process. And (3) starting a pressure regulator pressurizing switch 45 to pressurize the water making tank 12, starting a water guide electromagnetic valve 23 on a water outlet pipeline of the water making tank, wherein pressure difference exists between the water making tank 12 and the water storage tank 28, the water in the water making tank 12 is pressed into the water storage tank 28 through the pressure difference, and when the water level of the water making tank 12 reaches a low water level, the water guide electromagnetic valve 23 on the water outlet pipeline of the water making tank is closed, so that a water guide process is completed. Because the pressure in the water storage tank 28 varies due to the water guiding, the pressure transmitter 33 of the water storage tank adjusts the pressure in the water storage tank 28 to a preset value after the water guiding process is completed.
d. Under the manual mode, except that need manual regulation above-mentioned valve to open and close, still can set up irrigation temperature, irrigation water volume, irrigation time to according to the change of system water jar dissolved oxygen value in the cyclic aeration in-process, set for certain aeration time, or certain irrigation water dissolved oxygen threshold value, realize the irrigation of different soil, different crops.
Compared with the prior art, the water, fertilizer, gas and heat integrated intelligent drip irrigation control device and the control method have the following advantages:
1. the device is additionally provided with an automatic mode and an appointment mode, and a device for presetting relevant parameters can automatically run, so that the labor cost is reduced, and the automation degree is high;
2. part of pressurized air in the water preparation tank is uniformly mixed with water and fertilizer fluid in a micro-bubble mode through the Venturi aeration device and the static mixer, so that the aeration time is greatly shortened, and the phenomenon of water-air stratification is avoided;
3. due to the existence of the water storage tank, the device can realize simultaneous water production and irrigation, thereby saving time;
4. the device detects the dissolved oxygen content of the water and fertilizer fluid in the water making tank through the dissolved oxygen controller, and the dissolved oxygen value can be regulated and controlled according to specific crops and different growth periods;
5. the device can obtain the information of the time, the water making quantity, the fertilizing quantity, the water temperature, the irrigation quantity and the like of the previous operation by inquiring the historical report, and is convenient for data export;
6. because the water outlet of the water storage tank is connected with the underground drip irrigation pipeline, water and fertilizer are saved, and pollution is reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (7)
1. The utility model provides a water, fertilizer, gas and heat integration intelligent control device of driping irrigation which characterized in that: the water making device comprises a water making unit, a buffering unit and a control unit, wherein the water making unit and the buffering unit are communicated together, the control unit is electrically connected with the water making unit and the buffering unit, the water making unit comprises a water making tank (12), a water making tank water inlet pipeline communicated with the left side of the water making tank (12) and a water making tank water outlet pipeline communicated with the right side of the water making tank, an instant heating type water heating controller (4) is arranged on the water making tank water inlet pipeline, a fertilizer applicator is connected in parallel on a pipeline behind the instant heating type water heating controller (4), an aeration device is also communicated on the water making tank (12), and the instant heating type water heating controller (4), the aeration device and the fertilizer applicator are all connected with the;
the aeration device is a Venturi aeration device (19), the lower part of the left side of the water making tank (12) is communicated with an inflow check valve (11) and the Venturi aeration device (19) from bottom to top, the inflow check valve (11) is arranged on the inflow pipeline of the water making tank, the lower part of the right side of the water making tank (12) is communicated with a water guide check valve (22) and a dissolved oxygen controller-temperature transmitter (15) from bottom to top, the water guide check valve (22) is arranged on the outflow pipeline of the water making tank, the top is provided with a water making tank pressure transmitter (16), a water making tank floating ball liquid level meter (17) and a pressure regulator (26), the bottom is provided with a water making tank blow-off valve (, the water inlet check valve (11), the water guide check valve (22), the dissolved oxygen controller-temperature transmitter (15), the water making tank pressure transmitter (16), the water making tank floating ball liquid level meter (17) and the pressure regulator (26) are all connected with the control unit;
the Venturi aeration device (19) is connected with the water making tank (12) and then divided into two pipelines, wherein one pipeline enters from the top of the water making tank (12) through the self-priming circulating pump (20) and the static mixer (21) and is communicated with the aeration gas-liquid releaser (13) above the inner part of the water making tank (12), the other pipeline is communicated to the pressure regulator (26) at the top of the water making tank (12) through the gas-liquid mixing valve (18), and the self-priming circulating pump (20), the static mixer (21), the aeration gas-liquid releaser (13), the gas-liquid mixing valve (18) and the pressure regulator (26) are all connected with the control unit;
the buffer unit comprises a water storage tank (28), the water storage tank (28) is communicated with a water making tank (12) through a water storage tank water inlet pipeline quick connector (27), a water storage tank pressure transmitter (33) and a water storage tank floating ball liquid level meter (34) are arranged at the top of the water storage tank (28), a water storage tank blow-down valve (29) is arranged at the bottom of the water storage tank, the tail end of the water storage tank (28) is communicated with a water outlet pipeline, a water storage tank water outlet manual valve (30), a filter II (31) and a water storage tank water outlet electromagnetic valve (32) are sequentially arranged on the water outlet pipeline, and the water storage tank pressure transmitter (33), the water storage tank floating ball liquid level meter (34), the water storage tank water outlet manual valve (30).
2. The intelligent control device for drip irrigation with water, fertilizer, gas and heat integration of claim 1, characterized in that: the water outlet pipeline of the water making tank is sequentially connected with a water guide check valve (22), a water guide electromagnetic valve (23), a water outlet valve (24) and a water guide quick connector (25) in series, and the water guide electromagnetic valve (23) and the water outlet valve (24) are both connected with the control unit.
3. The intelligent control device for drip irrigation with water, fertilizer, gas and heat integration of claim 2, characterized in that: water preparation jar inlet pipe way one end intercommunication has into water quick-operation joint (1), from water quick-operation joint (1) to intaking between check valve (11) in proper order the series have into water manual valve (2), filter I (3), instant heating type water heating controller (4), system water jar inlet solenoid valve (5), flowmeter (6), inhale fertile manual valve I (7), the front end branch of intaking check valve (11) divides a parallel pipeline, is equipped with in proper order from the front to the back and inhales fertile manual valve II (8), fertilizer applicator, inhales fertile manual valve III (10), the fertilizer applicator is venturi fertilizer applicator (9), inlet manual valve (2), system water jar inlet solenoid valve (5), flowmeter (6), inhale fertile manual valve I (7), inhale fertile manual valve II (8), inhale fertile manual valve III (10) and all be connected with the control unit.
4. The intelligent control device for drip irrigation with water, fertilizer, gas and heat integration of claim 3, characterized in that: the water making tank floating ball liquid level meter (17) is provided with a low water level, a medium water level and a high water level from bottom to top, and the water inlet pipe intersection and the water outlet pipe intersection of the water making tank (12) are both positioned below the low water level of the water making tank floating ball liquid level meter (17).
5. The intelligent control device for drip irrigation integrating water, fertilizer, gas and heat according to claim 4, characterized in that: the control unit comprises a PLC (programmable logic controller) controller (35), an automatic indicator lamp (36), a manual indicator lamp (37), a power indicator lamp (38), an air pump indicator lamp (39), an emergency stop switch (40), a buzzer (41), a power switch (42), an air pump switch (43), a pressure regulator pressure relief switch (44) and a pressure regulator pressurizing switch (45).
6. The intelligent control device for drip irrigation integrating water, fertilizer, gas and heat according to claim 5, characterized in that: the water storage tank floating ball liquid level meter (34) is provided with five water levels of low water level, middle water level, high water level and high water level, and the water inlet and the water outlet of the water storage tank (28) are both positioned below the low water level of the water storage tank floating ball liquid level meter (34).
7. The control method of the intelligent control device for drip irrigation integrating water, fertilizer, air and heat according to any one of claims 5 or 6, characterized by comprising the following steps: the control unit is provided with an automatic mode, a reservation mode or/and a manual mode, and specifically comprises the following steps:
(1) communicating a water inlet quick connector (1) of a water production tank with a pressure water supply source, and communicating a water outlet pipeline of a water storage tank with an underground drip irrigation pipeline;
(2) starting a power key of a control unit, starting an air pump switch (43), entering a parameter setting interface to set the water preparation pressure of a water preparation tank, the fertilization rate, the water storage pressure of the water storage tank, the upper and lower limits regulated and controlled by a pressure controller, the content of dissolved oxygen or the cyclic aeration time, the total water preparation amount, the irrigation water level of the water storage tank and the water temperature;
(3) after the parameter setting is finished, an automatic mode is clicked, and the device automatically enters the processes of water inlet, water production, water diversion, water storage and irrigation;
(4) the reservation mode can set the starting time of the device on the basis of the automatic mode, and the device can be automatically started when the preset time is reached;
(5) if a manual mode is adopted, the opening and closing of the valve are required to be manually adjusted, and the following operations are mainly carried out:
a. opening a water inlet electromagnetic valve of the water making tank and a pressure relief switch of the pressure regulator to enable the water making tank to be in a water inlet state;
b. selecting whether to open the Venturi fertilizer applicator or not;
c. after water inflow is finished, a water inflow electromagnetic valve (5) of the water making tank and a pressure relief switch (44) of a pressure regulator are closed, a pressure increasing switch (45) of the pressure regulator is opened, and meanwhile, a self-absorption circulating pump (20) is started, so that water in the water making tank (12) enters the water making tank (12) after being aerated through a Venturi aeration device (19) and a static mixer (21);
d. after the water making process is finished, a pressure regulator pressurizing switch (45) is opened to pressurize the water making tank (12), a water guide electromagnetic valve (23) on a water outlet pipeline of the water making tank is opened, and water is guided into the water storage tank (28) through the pressure difference between the water making tank (12) and the water storage tank (28);
e. under the manual mode, the irrigation water temperature, the irrigation water quantity and the irrigation time can be set, the aeration time is set, or the threshold value of the dissolved oxygen of the irrigation water is set, so that the irrigation of different soils and different crops is realized.
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| CN108575678B (en) * | 2018-03-20 | 2023-11-24 | 中国水利水电科学研究院 | Metering irrigation device based on crop water demand |
| CN108645641A (en) * | 2018-06-20 | 2018-10-12 | 中国农业大学 | A kind of cyclical acceleration test System and method for of drip irrigation system douche blocking mechanism |
| CN109254540B (en) * | 2018-10-22 | 2023-03-17 | 山东农业大学 | Facility-based water, fertilizer, pesticide and hot gas integrated underground infiltration irrigation control system and method |
| CN110771335A (en) * | 2019-11-28 | 2020-02-11 | 莱芜职业技术学院 | Water and fertilizer integrated intelligent control system |
| CN111010969A (en) * | 2019-12-30 | 2020-04-17 | 滁州联润生态农业发展有限公司 | Gardens seedling planting water-saving irrigation system |
| CN114402782A (en) * | 2021-12-17 | 2022-04-29 | 黑龙江八一农垦大学 | Drip irrigation integrative activation increase irrigation equipment of liquid manure oxygen |
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| SU1159513A1 (en) * | 1983-07-19 | 1985-06-07 | Университет дружбы народов им.Патриса Лумумбы | Apparatus for maintaining production conditions of soil cultural layer in hothouse |
| CN1254168C (en) * | 2003-02-21 | 2006-05-03 | 天津市水利科学研究所 | Intellient control system for fertilization with mode of drop irrigation in greenhouse |
| CN102301940B (en) * | 2011-08-09 | 2012-09-05 | 鲁东大学 | Cyclic aeration subsurface oxygen irrigation system |
| CN102668947B (en) * | 2012-05-10 | 2015-01-07 | 鲁东大学 | Water-air coupled high-efficient irrigation system |
| CN103314696B (en) * | 2013-07-01 | 2015-05-13 | 鲁东大学 | Water supply system for water-fertilizer-gas efficient coupling irrigation and irrigation method |
| CN105613135B (en) * | 2016-02-26 | 2018-05-29 | 扬州大学 | A kind of heating integrated Intelligent irrigation system of greenhouse liquid manure gas |
| CN106069117A (en) * | 2016-07-01 | 2016-11-09 | 唐贵年 | A kind of greenhouse vegetable drip irrigation cultivation integrated technology method |
| CN206024726U (en) * | 2016-08-26 | 2017-03-22 | 杭州叶江食用菌有限公司 | Solar water -heating drips irrigation device |
| CN106489400A (en) * | 2016-12-13 | 2017-03-15 | 新疆农业科学院农业机械化研究所 | The hot coordinated regulation system of greenhouse liquid manure |
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