CN203761830U - Intelligent greenhouse soilless cultivation fertilizer water irrigation system - Google Patents
Intelligent greenhouse soilless cultivation fertilizer water irrigation system Download PDFInfo
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- CN203761830U CN203761830U CN201420137436.0U CN201420137436U CN203761830U CN 203761830 U CN203761830 U CN 203761830U CN 201420137436 U CN201420137436 U CN 201420137436U CN 203761830 U CN203761830 U CN 203761830U
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- 238000003973 irrigation Methods 0.000 title claims abstract description 106
- 230000002262 irrigation Effects 0.000 title claims abstract description 105
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 239000003337 fertilizer Substances 0.000 title claims abstract description 33
- 235000015097 nutrients Nutrition 0.000 claims abstract description 93
- 239000007788 liquid Substances 0.000 claims abstract description 69
- 230000001954 sterilising effect Effects 0.000 claims abstract description 17
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 17
- 238000009332 manuring Methods 0.000 claims description 41
- 238000011084 recovery Methods 0.000 claims description 22
- 239000012528 membrane Substances 0.000 claims description 18
- 238000004064 recycling Methods 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 3
- 239000012452 mother liquor Substances 0.000 description 23
- 239000000203 mixture Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000002689 soil Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000012271 agricultural production Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000009335 monocropping Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses an intelligent greenhouse soilless cultivation fertilizer water irrigation system. The system comprises a nutrient solution reclaiming pump, a first filter, a sterilization disinfector, a nutrient solution reclaiming bucket, a second filter, a water inlet pump, a fertilizer mixing bucket, a fertilizer mixing pump, a fertilizer mixing valve, an irrigation valve, a first flow meter, a circulating valve, a buffer pool, a fertilizer bucket, a diaphragm pump, an electromagnetic valve, a second flow meter, a check valve, a controller, a first pH sensor, a first Ec sensor, a second pH sensor, a second Ec sensor, an upper liquid level switch, a lower liquid level switch, a liquid level sensor, a liquid temperature sensor and an electric heater. According to the fertilizer water irrigation system, the Ec value and the pH value of the reclaimed nutrient solution can be collected based on accurate control on the mixing proportion of the mother nutrient solution and water, a mature soilless cultivation crop irrigation prescription is corrected by virtue of a crop fertilizer water irrigation model established according to the information of the reclaimed nutrient solution and the irrigation fertilizer water information, so that closed-loop monitor on greenhouse crop soilless cultivation fertilizer water irrigation can be realized.
Description
Technical field
The utility model relates to a kind of automatic manuring irrigation system of closed-loop control, in agricultural greenhouse booth soilless culture crop drip irrigation system field.
Background technology
Green house cultivation technique without soil adopts the method for the raise crops such as nutrient solution or solid matrix Ensure Liquid liquid, replaces natural soil that the rhizospheric environment conditions such as good water, fertilizer, gas, heat are provided to crop, is a new agricultural modernization technology.Cultivation technique without soil has the following advantages: (1) can avoid soil continuous cropping obstacle; (2) water-saving, fertile, laborsaving, the saving of labor of province; (3) crop growing state is strong, output is high, quality better; (4) can greatly expand agricultural production space; (5) be conducive to realize the modernization of agricultural production.The moisture and the nutrient that need due to crop all need absorb from irrigation liquid, so manuring irrigation is technology the most key in green house cultivation technique without soil., because the water usage factor of drip irrigation technique is higher, reach more than 80% at present, and can realize and irrigating and fertilising synchronously completes, so conventionally adopt drip irrigation in the time of crop soilless culture.According to green house soilless culture crop at different vegetative stages the demand to rich water, automatically rich water mixing Irrigation Machine can be according to the nutrient solution prescription presetting, irrigation volume and irrigation time, realize nutrient solution mother liquor and the water of automatic mixed preparing, accurately control the component ratio of various fertilizer in nutrient solution, and implement drip irrigation, rich water is accurately supplied to the root of protected crop, thereby effectively improves utilization ratio, minimizing water resource waste and the pollution of the excessive use of fertilizer to environment of rich water.The high efficiency of automatically mixing Irrigation Machine, is very suitable for modern greenhouse booth soilless culture production application, is the important equipment that China's industrialized agriculture realizes sustainable development.
Intelligent Greenhouse soilless culture rich water mixes Irrigation Machine and mainly contains water supply installation, Fertilizer mixer, irrigation rig, supervising device, warning device, nutrient solution retracting device composition, and its mechanism is divided into water route and circuit two parts.Tradition rich water mixes irrigation and adopts venturi type fat absorption device to be added on irrigation conduit, as patent 201220195289.3, adopt siphon principle, the nutrient solution mother liquor that inspiration simultaneously prepares in the time irrigating, in this fertilizer applicator, nutrient solution mother liquor and water do not have abundant mixed process, and nutrient solution is not evenly supplied with crop; At present domestic comparatively advanced manuring irrigation machine, as patent 201010586460.9, can realize automatic irrigation machine water supply, inhale the monitoring of fertilizer, compounding, the full course of work of irrigation, the actual fertilizer ratio that can guarantee nutrient solution meets predefined ratio requirement, but do not consider the demand of crop to rich water, preset proportioning value and whether meet the needs of crop to rich water, do not carry out closed loop detection.
Summary of the invention
The utility model object is to provide a kind of Intelligent Greenhouse soilless culture manuring irrigation system, the technical problem solving is to adopt programmable logic controller (PLC) (PLC), accurately control on the mixed proportion basis of nutrient solution mother liquor and water, gather manuring irrigation machine every terms of information: irrigate rich water information (Ec value, pH value, liquid level, liquid temperature) and reclaim rich water information (Ec value, pH value), and by manuring irrigation model, realize the closed loop monitoring that green house crop soilless culture rich water fully mixes and irrigates; Native system improves the defect that traditional venturi type fat absorption device exists: nutrient solution mother liquor and water do not obtain abundant mixing phenomena; And improve the accurate control thought that only lays particular emphasis on rich water mixed-precision, but lack crop, the demand property information of rich water nutrient component is detected.
The utility model adopted technical scheme of dealing with problems is: Intelligent Greenhouse soilless culture manuring irrigation system, comprises nutrient solution recovery pump, the first filter, sterilization sterilizer, nutrient solution recycling bin, the second filter, intake pump, fertilizer-mixing barrel, mixed fertile pump, mixed fertile valve, irrigation valve, first flow meter, circulating valve, Buffer Pool, fertilizer bucket, membrane pump, magnetic valve, the second flowmeter, non-return valve and controller;
Nutrient solution recovery liquid is input to the input port of nutrient solution recovery pump by the first filter, the delivery outlet of nutrient solution recovery pump connects the input port of sterilization sterilizer, and the delivery outlet of sterilization sterilizer is connected in nutrient solution recycling bin by pipeline;
In nutrient solution recycling bin, nutrient solution recovery liquid and open water supply are input to intake pump after filtering by the second filter;
The delivery outlet of intake pump is connected in fertilizer-mixing barrel by pipeline;
The input port of mixed fertile pump is connected in fertilizer-mixing barrel by pipeline, the delivery outlet of mixed fertile pump connects the input port of mixed fertile valve by pipeline, the delivery outlet of mixed fertile valve connects the input port of circulating valve by pipeline, the delivery outlet of circulating valve is connected in Buffer Pool by pipeline, and Buffer Pool is connected in fertilizer-mixing barrel by pipeline;
The delivery outlet of mixed fertile pump is also connected to the input port of irrigation valve by pipeline, on the pipeline that the delivery outlet of irrigation valve connects, be provided with first flow meter;
The input port of membrane pump is connected in fertilizer bucket, and the delivery outlet of membrane pump is connected to the input port of non-return valve after by the second flowmeter, and the delivery outlet of non-return valve is connected in fertilizer-mixing barrel by pipeline;
The delivery outlet of mixed fertile valve is also connected to the input port of check (non-return) valve by pipeline;
Also comprise a pH sensor, an Ec sensor, the 2nd pH sensor, the 2nd Ec sensor, upper liquid-level switch, lower liquid-level switch, liquid level sensor, liquid temperature sensor and electric heater;
Be arranged at the signal that a pH sensor in Buffer Pool and an Ec sensor detect and be input to controller;
Be arranged at the signal that the 2nd pH sensor in nutrient solution recycling bin and the 2nd Ec sensor detect and be input to controller;
Be arranged at the signal that liquid level sensor in fertilizer-mixing barrel and liquid temperature sensor detect and be input to controller;
The upper liquid-level switch that is arranged at fertilizer-mixing barrel top is input to controller with the signal that the lower liquid-level switch that is arranged at fertilizer-mixing barrel bottom detects;
Electric heater is arranged at fertilizer-mixing barrel inside;
The start and stop of controller control nutrient solution recovery pump, intake pump, mixed fertile pump and electric heater;
On the output pipe of described membrane pump, be provided with magnetic valve, the magnetic valve described in controller control;
Also comprise host computer;
Described controller is communicated by letter with host computer.
Be more preferably technical scheme, described controller adopts PLC to realize.
Be more preferably technical scheme, described controller adopts RS232 to communicate by letter with described host computer.
Be more preferably technical scheme, described PLC controller connects modulus expansion module by CAN EBI, realizes and gathers multiple sensor signal and control multichannel output actuating unit.
Be more preferably technical scheme, controller is by the start and stop of Control nutrient solution recovery pump, intake pump, mixed fertile pump and electric heater.
Be more preferably technical scheme, the Push And Release of described controller controlled circulation valve.
Be more preferably technical scheme, on the output pipe of described membrane pump, be provided with filter.
Be more preferably technical scheme, described controller is by the start and stop of Control sterilization sterilizer.
Be more preferably technical scheme, described host computer disposes touch-screen.
Compared with prior art scheme, the beneficial effects of the utility model are: (1) closed loop manuring irrigation decision mode: the utility model adopts the concentration of close-loop control mode decision-making manuring irrigation, demand according to crop to rich water, accurately controls nutrient solution mother liquor and water mixed proportion.(2) rich water mixing irrigation control pattern: the utility model rich water mixes Irrigation Machine and has three kinds of control models: manually control model, standard recipe control model and the control model based on manuring irrigation model.Manual mode: the parameter that can arrange according to user, carry out rich water and mix irrigation; Standard recipe pattern: can import ripe crop manuring irrigation formula, implement the mixed irrigation of rich water; Control model based on manuring irrigation model: according to irrigating rich water information and reclaiming the manuring irrigation model that rich water information is set up, execution rich water mixes irrigates.(3) HMI touch-control system: HMI touch-control system has manuring irrigation control interface simple to operation, show the information of every sensor and actuating equipment, and store each sensor information and system execution journal information in SD storage card, so that the inquiry in later stage is used with analysis, can arrange and inquiry system running parameter by touch.(4) portable aluminium stand: adopt packaged type stand, facilitate manuring irrigation machine to arrive many green houses and carry out manuring irrigation task.The utility model is specially adapted to large-scale many green house soilless culture crop manuring irrigation occasions.
Brief description of the drawings
Fig. 1 is the utility model pipeline schematic diagram;
Fig. 2 is the utility model circuit control section schematic diagram;
Fig. 3 is the utility model workflow schematic diagram;
Fig. 4 is HMI touch-control system control of the present utility model interface schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model specific embodiment is further described.
Intelligent Greenhouse soilless culture manuring irrigation system, comprises nutrient solution recovery pump, the first filter, sterilization sterilizer, nutrient solution recycling bin, the second filter, intake pump, fertilizer-mixing barrel, mixed fertile pump, mixed fertile valve, irrigation valve, first flow meter, circulating valve, Buffer Pool, fertilizer bucket, membrane pump, magnetic valve, the second flowmeter, non-return valve and controller; Nutrient solution recovery liquid is input to the input port of nutrient solution recovery pump by the first filter, the delivery outlet of nutrient solution recovery pump connects the input port of sterilization sterilizer, and the delivery outlet of sterilization sterilizer is connected in nutrient solution recycling bin by pipeline; In nutrient solution recycling bin, nutrient solution recovery liquid and open water supply are input to intake pump after filtering by the second filter; The delivery outlet of intake pump is connected in fertilizer-mixing barrel by pipeline; The input port of mixed fertile pump is connected in fertilizer-mixing barrel by pipeline, the delivery outlet of mixed fertile pump connects the input port of mixed fertile valve by pipeline, the delivery outlet of mixed fertile valve connects the input port of circulating valve by pipeline, the delivery outlet of circulating valve is connected in Buffer Pool by pipeline, and Buffer Pool is connected in fertilizer-mixing barrel by pipeline; The delivery outlet of mixed fertile pump is also connected to the input port of irrigation valve by pipeline, on the pipeline that the delivery outlet of irrigation valve connects, be provided with first flow meter; The input port of membrane pump is connected in fertilizer bucket, and the delivery outlet of membrane pump is connected to the input port of non-return valve after by the second flowmeter, and the delivery outlet of non-return valve is connected in fertilizer-mixing barrel by pipeline; The delivery outlet of mixed fertile valve is also connected to the input port of check (non-return) valve by pipeline; Also comprise a pH sensor, an Ec sensor, the 2nd pH sensor, the 2nd Ec sensor, upper liquid-level switch, lower liquid-level switch, liquid level sensor, liquid temperature sensor and electric heater; Be arranged at the signal that a pH sensor in Buffer Pool and an Ec sensor detect and be input to controller; Be arranged at the signal that the 2nd pH sensor in nutrient solution recycling bin and the 2nd Ec sensor detect and be input to controller; Be arranged at the signal that liquid level sensor in fertilizer-mixing barrel and liquid temperature sensor detect and be input to controller; The upper liquid-level switch that is arranged at fertilizer-mixing barrel top is input to controller with the signal that the lower liquid-level switch that is arranged at fertilizer-mixing barrel bottom detects; Electric heater is arranged at fertilizer-mixing barrel inside; The start and stop of controller control nutrient solution recovery pump, intake pump, mixed fertile pump and electric heater; On the output pipe of described membrane pump, be provided with magnetic valve, the magnetic valve described in controller control; Also comprise host computer; Described controller is communicated by letter with host computer.Described host computer disposes touch-screen.
Wherein, described controller adopts PLC to realize.Described controller adopts RS232 to communicate by letter with described host computer.Described PLC controller connects modulus expansion module by CAN EBI, realizes and gathers multiple sensor signal and control multichannel output actuating unit.Controller is by the start and stop of Control nutrient solution recovery pump, intake pump, mixed fertile pump and electric heater.The Push And Release of described controller controlled circulation valve.On the output pipe of described membrane pump, be provided with filter.Described controller is by the start and stop of Control sterilization sterilizer.
Please read Fig. 1, manuring irrigation system is totally divided into four parts: rich water information detector, rich water mixing irrigation controller, actuating unit, auxiliary equipment.Rich water information detector, by pH sensor, Ec sensor, liquid level sensor, liquid temperature sensor, flow sensor, liquid-level switch, detects and irrigates rich water information and reclaim rich water information, and on HMI controller, shows and storage in real time.Rich water mixing irrigation controller is divided into slave computer PLC controller and host computer HMI controller, slave computer PLC controller gathers rich water information, information exchange is crossed to RS232 interface and send HMI controller to, and according to the control model of upper computer selecting, carry out the mixed fertile order of irrigating of corresponding rich water, wherein slave computer PLC controller connects modulus expansion module by CAN bus.Host computer HMI controller is realized demonstration, storage rich water information, and the functions such as rich water mixing irrigation parameter are set, and comprises that model selection, flooding parameter setting, mixed fertile parameter setting, the setting of irrigation parameter, liquid temperature parameter arrange, formulation parameter setting.Actuating unit comprises intake pump, mixed fertile pump, membrane pump, magnetic valve etc., mainly by PLC controller or the control of multicircuit relay drive circuit, carries out water source absorption, the absorption of nutrient solution mother liquor, the mixed fertile proportion control of rich water, reclaims the functions such as nutrient solution and irrigation.Auxiliary equipment mainly comprises nutrient solution mother liquor tank (fertilizer bucket), nutrient solution recycling bin, fertilizer-mixing barrel, sterilization sterilizer, filter etc., and auxiliary whole rich water mixes the realization of irrigation function.
The nutrient solution mother liquor that the utility model adopts is made according to crop alimentary formula of liquid composition, selects fertilizer to carry out combined arms battalion nutrient solution mother liquor, and demarcates under different extension rates to obtain Ec value and pH value and nutrient composition stability.According to the different solubilities of fertilizer and synthetic reaction, to fertilizer classification, be placed on respectively in different nutrient solution mother liquor tanks (fertilizer bucket), to reduce precipitation and the chemical reaction of nutrient solution mother liquor.
When rich water mixes irrigation system work, first execution water inlet order, there are two kinds of selections at water source, is respectively open water supply and reclaims nutrient solution, is drawn in fertilizer-mixing barrel by intake pump, in the time that the water source in fertilizer-mixing barrel reaches setting level value, starts mixed fertile program.In the time that the water source in fertilizer-mixing barrel reaches liquid level to setting height, automatically stop into water.When liquid level exceedes fertilizer-mixing barrel when the highest liquid level, automatically stop into water.When liquid level is during lower than the mixed fertile minimum liquid level height requiring, system can not be carried out mixed fertile or irrigate order.In the time that irrigation volume is greater than fertilizer-mixing barrel capacity, repeat into water-mixed fertilizer-irrigation order.
Rich water mixes the mixing that adopts PID control method to realize nutrient solution mother liquor and water source.When mixed fertile command execution, first open mixed fertile pump, mixed fertile valve and circulating valve, and close irrigation valve.Membrane pump is drawn nutrient solution mother liquor by filter, and nutrient solution mother liquor is sucked to fertilizer-mixing barrel, by mixed fertile pump, water source and nutrient solution mother liquor is fully mixed.In the time that the rich water Ec value detecting in Buffer Pool and pH value reach expection setting value, automatically stop mixed fertile program.Now close mixed fertile valve and circulating valve, and open irrigation valve, the rich water mixing is supplied with to each crop root by irrigate band.Between irrigation valve and irrigate band, flowmeter is installed, detects accumulative total irrigation volume information.
The nutrient solution oozing out in crop genetics matrix flows in nutrient solution accumulator tank.Backflow nutrient solution sucks in nutrient solution recycling bin after processing by the first filter and sterilization sterilizer.In nutrient solution recycling bin, there are Ec value sensor and pH value sensor, detect the information that reclaims nutrient solution.Rich water mixes the information that Irrigation Machine controller gathers irrigation liquid information simultaneously and reclaims nutrient solution, and according to manuring irrigation model, decision-making is the mixed fertile information parameter of rich water next time, thereby realizes closed-loop control, the demand property according to crop to fertilizer, facility manuring irrigation.
Liquid temperature sensor detects the temperature of liquid in fertilizer-mixing barrel, mainly prevents that winter water source temperature is too low, is that rich water is heated to presetting valve by electric heater.
Liquid-level switch is divided into liquid-level switch and lower liquid-level switch.Upper liquid-level switch is to realize preventing rich water overflow protection function in fertilizer-mixing barrel; Lower liquid-level switch is to realize the minimum liquid level limitation function that rich water mixes and irrigates.
Please read Fig. 2, manuring irrigation machine control circuit mainly comprises Switching Power Supply, sensor, slave computer PLC controller, host computer HMI controller and actuating equipment.Switching Power Supply is that 220VAC is converted to 24VDC and 5VDC, is slave computer PLC, host computer HMI controller and sensor power supply.Slave computer PLC controller has advantages of many inputs, many output interfaces, and in the utility model, PLC controller connects modulus expansion connection module by CAN EBI.Slave computer controller has multichannel analog-to-digital conversion interface, switching value/pulsed quantity interface and output interface altogether.Ec sensor, pH sensor, liquid level sensor, liquid temperature sensor are analog signal, access A/D interface; Flow sensor is pulse signal, access switching value interface; Liquid-level switch is switching value, access switching value interface.Slave computer PLC controller is connected by RS232 communication interface with host computer HMI controller.Host computer HMI controller shows the real time data with the each input signal of storage.Can rich water be set by HMI controller and mix irrigation parameter.Slave computer PLC carries out corresponding rich water according to the parameter of host computer setting and mixes irrigation order, drives the break-make of each magnetic valve and pump.On manuring irrigation machine switch board, be provided with manual operation button, realize water inlet, mixed fertilizer, irrigation and nutrient solution and reclaim function.
Please read Fig. 3, before manuring irrigation machine is realized Intelligent Hybrid nutrient solution mother liquor and open water supply, first need to select nutrient solution prescription according to raise crop secondly selected fertilizer type, make nutrient solution mother liquor, and demarcate Ec value and the pH value of nutrient solution mother liquor under different extension rates.Before rich water mixes irrigation, first according to selected water source type and inflow, carry out water inlet order.If do not need mixotrophism liquid mother liquor, directly carry out and irrigate order.If need mixed fertilizer, carry out mixture length.Mix according to setting value, formula value or calculated value, adopt pid control algorithm, carry out mixed fertile order.When mixing the Ec value of rich water and pH value while reaching setting value, execution irrigation is ordered.Mixed rich water flows into crop root matrix by irrigate band, and unnecessary nutrient solution will splash in nutrient solution accumulator tank.After manuring irrigation, according to setting-up time, carry out nutrient solution and reclaim order, by the first filter and sterilization sterilizer processing, nutrient solution is sucked in nutrient solution recycling bin, get time irrigation ready and reuse, save water source.Ec sensor and pH sensor are installed in nutrient solution recycling bin, detect and reclaim nutrient solution information, for manuring irrigation decision-making provides foundation.
Please read Fig. 4, HMI touch-control system is realized rich water and is mixed Irrigation Machine parameter display, storage and parameter setting function.By editing on computers configuration software, by USB interface to HMI controller downloading control software.The real time data that shows each sensor on HMI touch-control system interface, comprising: Ec value and the pH value of fertilizer-mixing barrel rich water Ec value and pH value, liquid level, liquid temperature, accumulative total irrigation volume and recovery nutrient solution.Control model: manual mode, prescription model and closed loop mode.Manual control button comprises: water inlet, mixed fertilizer, irrigation and nutrient solution reclaim.On controller interface, show the real-time Ec value curve map that rich water mixes.Parameter setting function comprises: flooding parameter setting, mixed fertile parameter setting, the setting of irrigation parameter, liquid temperature parameter arrange and formulation parameter setting.Flooding parameter setting comprises: inflow and choosing source; Mixed fertile parameter setting comprises: Ec value and pH value; Irrigating parameter setting comprises: irrigation time, Irrigation Frequency; The setting of liquid temperature parameter comprises: rich water heating threshold values; Formula parameters: the rich water Ec value and the pH value that import the each vegetative stage of crop.HMI controller adopts touch control manner practical function that function is set.HMI controller is stored in the sensor information of collection in controller SD card, and standby later stage inquiry and analysis uses.
The utility model mainly comprises PLC controller, modulus expansion board, HMI touch screen, Ec sensor, pH sensor, liquid level sensor, liquid temperature sensor, flow sensor, supercharging self priming pump, membrane pump, electric heater, pressure switch, liquid-level switch, flowmeter, magnetic valve, UPVC pipe and accessory, filter, injector, nutrient solution mother liquor tank, fertilizer-mixing barrel, nutrient solution recycling bin, sterilization sterilizer, multicircuit relay, breaker, aluminium section bar stand etc.In this programme, each sensor signal access PLC controller and modulus expansion board, by RS232 communication interface, be connected on HMI touch screen, shows in real time the actual measured value of each sensor information, and sensor information is stored in the SD card of HMI touch controller.According to irrigating rich water information and reclaiming the manuring irrigation model that rich water information is set up, Ec value, pH value and the irrigation volume of rich water irrigated in decision-making next time, carry out the automatic mixing of nutrient solution mother liquor and water and irrigate flow process by manuring irrigation machine, realizing Intelligent greenhouse soilless culture manuring irrigation function.The utility model will realized on the basis of accurately controlling nutrient solution mother liquor and water mixed proportion, gather the Ec value and the pH value that reclaim nutrient solution, according to reclaiming nutrient solution information and irrigating the crop manuring irrigation model that rich water information is set up, revise ripe soilless culture crop irrigation formula, thereby realize the closed loop supervising device of chamber crop soilless culture manuring irrigation.
Claims (9)
1. Intelligent Greenhouse soilless culture manuring irrigation system, it is characterized in that, comprise nutrient solution recovery pump, the first filter, sterilization sterilizer, nutrient solution recycling bin, the second filter, intake pump, fertilizer-mixing barrel, mixed fertile pump, mixed fertile valve, irrigation valve, first flow meter, circulating valve, Buffer Pool, fertilizer bucket, membrane pump, magnetic valve, the second flowmeter, non-return valve and controller;
Nutrient solution recovery liquid is input to the input port of nutrient solution recovery pump by the first filter, the delivery outlet of nutrient solution recovery pump connects the input port of sterilization sterilizer, and the delivery outlet of sterilization sterilizer is connected in nutrient solution recycling bin by pipeline;
In nutrient solution recycling bin, nutrient solution recovery liquid and open water supply are input to intake pump after filtering by the second filter;
The delivery outlet of intake pump is connected in fertilizer-mixing barrel by pipeline;
The input port of mixed fertile pump is connected in fertilizer-mixing barrel by pipeline, the delivery outlet of mixed fertile pump connects the input port of mixed fertile valve by pipeline, the delivery outlet of mixed fertile valve connects the input port of circulating valve by pipeline, the delivery outlet of circulating valve is connected in Buffer Pool by pipeline, and Buffer Pool is connected in fertilizer-mixing barrel by pipeline;
The delivery outlet of mixed fertile pump is also connected to the input port of irrigation valve by pipeline, on the pipeline that the delivery outlet of irrigation valve connects, be provided with first flow meter;
The input port of membrane pump is connected in fertilizer bucket, and the delivery outlet of membrane pump is connected to the input port of non-return valve after by the second flowmeter, and the delivery outlet of non-return valve is connected in fertilizer-mixing barrel by pipeline;
The delivery outlet of mixed fertile valve is also connected to the input port of check (non-return) valve by pipeline;
Also comprise a pH sensor, an Ec sensor, the 2nd pH sensor, the 2nd Ec sensor, upper liquid-level switch, lower liquid-level switch, liquid level sensor, liquid temperature sensor and electric heater;
Be arranged at the signal that a pH sensor in Buffer Pool and an Ec sensor detect and be input to controller;
Be arranged at the signal that the 2nd pH sensor in nutrient solution recycling bin and the 2nd Ec sensor detect and be input to controller;
Be arranged at the signal that liquid level sensor in fertilizer-mixing barrel and liquid temperature sensor detect and be input to controller;
The upper liquid-level switch that is arranged at fertilizer-mixing barrel top is input to controller with the signal that the lower liquid-level switch that is arranged at fertilizer-mixing barrel bottom detects;
Electric heater is arranged at fertilizer-mixing barrel inside;
The start and stop of controller control nutrient solution recovery pump, intake pump, mixed fertile pump and electric heater;
On the output pipe of described membrane pump, be provided with magnetic valve, the magnetic valve described in controller control;
Also comprise host computer;
Described controller is communicated by letter with host computer.
2. Intelligent Greenhouse soilless culture manuring irrigation system according to claim 1, is characterized in that, described controller adopts PLC to realize.
3. Intelligent Greenhouse soilless culture manuring irrigation system according to claim 1, is characterized in that, described controller adopts RS232 to communicate by letter with described host computer.
4. Intelligent Greenhouse soilless culture manuring irrigation system according to claim 2, is characterized in that, described PLC controller connects modulus expansion module by CAN EBI, realizes and gathers multiple sensor signal and control multichannel output actuating unit.
5. Intelligent Greenhouse soilless culture manuring irrigation system according to claim 1, is characterized in that, controller is by the start and stop of Control nutrient solution recovery pump, intake pump, mixed fertile pump and electric heater.
6. Intelligent Greenhouse soilless culture manuring irrigation system according to claim 1, is characterized in that, the Push And Release of described controller controlled circulation valve.
7. Intelligent Greenhouse soilless culture manuring irrigation system according to claim 1, is characterized in that, on the output pipe of described membrane pump, is provided with filter.
8. Intelligent Greenhouse soilless culture manuring irrigation system according to claim 1, is characterized in that, described controller is by the start and stop of Control sterilization sterilizer.
9. Intelligent Greenhouse soilless culture manuring irrigation system according to claim 1, is characterized in that, described host computer disposes touch-screen.
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| CN201420137436.0U CN203761830U (en) | 2014-03-25 | 2014-03-25 | Intelligent greenhouse soilless cultivation fertilizer water irrigation system |
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| CN201420137436.0U CN203761830U (en) | 2014-03-25 | 2014-03-25 | Intelligent greenhouse soilless cultivation fertilizer water irrigation system |
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| CN104303677A (en) * | 2014-10-27 | 2015-01-28 | 宿州学院 | Integrated water-fertilizer micro-jetting irrigation fertilizing system |
| CN104350858A (en) * | 2014-10-30 | 2015-02-18 | 应洪昌 | Lotus root tank system for growth of lotus roots |
| CN104429277A (en) * | 2014-12-05 | 2015-03-25 | 沈阳远大科技园有限公司 | Split type fertilization device and using method thereof |
| CN104472088A (en) * | 2014-11-13 | 2015-04-01 | 沈阳远大科技园有限公司 | Method for determining plant fertilizing amount by detecting EC values of fertilizing solution and soil |
| CN104938322A (en) * | 2015-06-30 | 2015-09-30 | 安徽科技学院 | Greenhouse nutrient solution recycling device |
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2014
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