CN107966924A - A kind of control system and method for the greenhouse planted with seawater - Google Patents

A kind of control system and method for the greenhouse planted with seawater Download PDF

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Publication number
CN107966924A
CN107966924A CN201711127771.7A CN201711127771A CN107966924A CN 107966924 A CN107966924 A CN 107966924A CN 201711127771 A CN201711127771 A CN 201711127771A CN 107966924 A CN107966924 A CN 107966924A
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China
Prior art keywords
signal
seawater
motor
temperature
greenhouse
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CN201711127771.7A
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Chinese (zh)
Inventor
宋宏婷
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宋宏婷
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Priority to CN201711127771.7A priority Critical patent/CN107966924A/en
Publication of CN107966924A publication Critical patent/CN107966924A/en
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423Input/output
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • A01G9/247Watering arrangements
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/043Details
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08Seawater, e.g. for desalination
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/21Pc I-O input output
    • G05B2219/21137Analog to digital conversion, ADC, DAC
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment
    • Y02A20/208Off-grid powered water treatment
    • Y02A20/212Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25Greenhouse technology, e.g. cooling systems therefor

Abstract

The invention discloses a kind of control system and method for the greenhouse planted with seawater, including pedestal, pedestal to be arranged on below ground surface, setting and waterproof layer on base internal wall, and planting soil layer is provided with waterproof layer;Pedestal both ends are connected by the keel shoe of arc, and greenhouse wall is provided with keel shoe;Angle in greenhouse with ground is provided with salina;Evaporator is provided with salina, evaporator includes dropper.Water source of the seawater as agricultural production can be used, improve the utility value of seawater;And saline and alkaline, desert region soil sunlight resource can be made full use of, provide more food sources for people;By setting evaporator, evaporation of seawater speed can be accelerated, improve the efficiency of sea water conversion, and the temperature and humidity of greenhouse can be adjusted, improve photosynthetic efficiency.

Description

A kind of control system and method for the greenhouse planted with seawater
Technical field
The present invention relates to a kind of greenhouse, a kind of control system more particularly to greenhouse planted with seawater and Method.
Background technology
Green house of vegetables is a kind of frame structure of film with outstanding heat-insulating property, it occurs that people are had Vegetables in improper season.General green house of vegetables is covered with one or more layers insulating plastic pipe above using bamboo structure or the skeleton of steel construction Film, material is thus formed a greenhouse space.Outer membrane prevents the loss of carbon dioxide caused by internal vegetable growth well, Make that there is good heat insulation effect in canopy.
Water resource is the resource utilized extensively in production and life activity by the mankind, is not only widely used in agricultural, work Industry and life, are additionally operable to power generation, water transport, aquatic products, tourism and environmental reconstruction etc..In a variety of purposes, has plenty of consumption With water, some is then non-expendable or the use water of consumption very little, and the requirement to water quality is different.This is to make water resource one Water uses, fully develops the advantage of its comprehensive benefit.Global fresh water extremely lacks, and particularly special climate is formed Salt-soda soil, seashore desert climate, having a large amount of water sources in vain cannot be fully used.
The content of the invention
The goal of the invention of the present invention is:For above-mentioned problem, there is provided a kind of greenhouse planted with seawater The control system and method for greenhouse, can use water source of the seawater as agricultural production, improve the utility value of seawater;And it can fill Divide and utilize saline and alkaline, desert region soil sunlight resource, provide more food sources for people, and the temperature in greenhouse can be adjusted Degree and humidity, improve the growth rate of crop.
The technical solution adopted by the present invention is as follows:
A kind of control system for the greenhouse planted with seawater, including pedestal, pedestal are arranged on below ground surface, pedestal Set on inner wall and waterproof layer, be provided with planting soil layer on waterproof layer;Pedestal both ends are connected by the keel shoe of arc, keel shoe On be provided with greenhouse wall;Angle in greenhouse with ground is provided with salina;Evaporator is provided with salina, Evaporator includes dropper.Control system includes central control unit, signal conditioning circuit, A/D conversion circuits, is provided with greenhouse First temperature sensor, the output terminal of the first temperature sensor are connected with the signal input part signal of signal conditioning circuit, letter The signal output part of number modulate circuit is connected with the input end signal of A/D conversion circuits, output terminal and the center of A/D conversion circuits Control unit signal is connected.
Further, the invention discloses a kind of preferred knot of the control system for the greenhouse planted with seawater Structure, is provided with multiple supporting racks on the pedestal, supporting rack is connected with the middle part of keel shoe, and condensation is provided between supporting rack Pipe, the output terminal of condenser pipe are connected with evaporator input terminal;The evaporator includes base, and stent, stent are provided with base On be fixedly connected with distributive pipe, distributive pipe is connected with some droppers by pipeline, some through holes is provided with dropper.Salina (4)In be provided with second temperature sensor, the output terminal of second temperature sensor passes through cable and the signal of signal conditioning circuit Input terminal is electrically connected.
Further, evaporating plate frame is provided with the base, evaporating plate frame is both provided with dropper, evaporating plate frame is square Shape frame structure, is provided with evaporating plate on the cavity in evaporating plate frame, evaporating plate is the porous network structure that chemical fibre is made into Cloth;Seawater can be dropped on evaporating plate frame from dropper, and be flowed slowly into along evaporating plate in salina.
Further, the greenhouse is nearby provided with seawater storage pool, and seawater storage pool is defeated by pipeline and condenser pipe Enter end to be connected, water circulating pump is provided with the pipeline that seawater storage pool is connected with condenser pipe, is provided with the shaft of water circulating pump Circulation motor.Control system includes the first motor-drive circuit, and signal input part and the center of the first motor-drive circuit control Cell signal is connected, and the output terminal of the first motor-drive circuit is electrically connected with circulation motor.
Further, the output terminal of the condenser pipe being connected by pipeline and distributive pipe, the phase of condenser pipe and distributive pipe The 3rd solenoid valve is provided with pipeline even;The output terminal of salina is connected by pipeline with seawater storage pool;Seawater steams Second solenoid valve is provided with the pipeline that hair groove is connected with seawater storage pool.
Further, the distributive pipe is connected by pipeline with salina, and distributive pipe is connected with salina Reflux water pump and the first solenoid valve are provided with pipeline, reflux motor is provided with the shaft for the water pump that flows back.Control system includes Second motor-drive circuit, the signal input part of the second motor-drive circuit are connected with central control unit signal, the second motor The output terminal of drive circuit is electrically connected with reflux motor.
Further, multiple deflectors for being used to guide current are set on the greenhouse wall, and deflector is uniformly arranged on greatly On canopy wall.
A kind of control method of the control system for the greenhouse planted with seawater, comprises the following steps:
1. temperature signal is converted into electric signal 001 and passes to signal conditioning circuit by the first temperature sensor, second temperature passes Temperature signal is converted into electric signal 002 and passes to signal conditioning circuit by sensor, and signal conditioning circuit passes after signal is amplified A/D conversion circuits are passed, A/D conversion circuits convert analog signals into digital signal and pass to central control unit;
After 2. central control unit receives signal 001,002, central control unit is preset with photosynthesis of plant efficiency maximum Temperature value T1, after the temperature value representated by signal 001 is more than temperature T1, central control unit is to the first motor-drive circuit Drive signal 003 is sent, the first motor-drive circuit receives rear control loop electric motor starting, and circulation motor drives water circulating pump Rotate, seawater is pumped into condenser pipe by water circulating pump;
3. condenser pipe on its surface and instills the Water vapor condensation in greenhouse in soil, the temperature of seawater in condenser pipe by Edge up height, and enters in distributive pipe, and distributive pipe inputs seawater in dropper, and dropper instills seawater on evaporating plate, and seawater exists Evaporated on evaporating plate, temperature reduces;
4. central control unit calculates the difference t of temperature value T1 and 001 temperature displaying function of signal, central control unit is to electromagnetism Valve-driving circuit sends digital signaling zero 04, and driving circuit for electromagnetic valve controls the 3rd solenoid valve to open after receiving, and difference t is bigger, The flow velocity that 3rd solenoid valve is opened is bigger;
5. 001 temperature displaying function of electric signal is less than temperature value T1, central control unit sends digital signal to driving circuit for electromagnetic valve 005, driving circuit for electromagnetic valve controls the 3rd solenoid valve to close after receiving, and central control unit is sent out to the first motor-drive circuit Go out drive signal 006, the first motor-drive circuit receives rear control loop motor and closes;
6. central control unit sends digital signaling zero 07 to driving circuit for electromagnetic valve, driving circuit for electromagnetic valve controls after receiving First solenoid valve is opened, and central control unit sends drive signal 008, the second motor-drive circuit to the second motor-drive circuit Control reflux motor is opened after receiving;The motor that flows back drives reflux water pump to rotate, and drives seawater in evaporating plate and evaporation of seawater Flowed between groove;
7. temperature T2 is preset with central control unit, when 002 temperature displaying function of signal is less than temperature T2, central control unit Digital signaling zero 09 is sent to driving circuit for electromagnetic valve, driving circuit for electromagnetic valve controls second solenoid valve to open after receiving, seawater Flow back in seawater storage pool;
8. temperature T2 is preset with central control unit, when 002 temperature displaying function of signal is more than temperature T2, central control unit Digital signaling zero 10 is sent to driving circuit for electromagnetic valve, driving circuit for electromagnetic valve controls second solenoid valve to close after receiving.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows:
1. by setting the present invention, the land resource and sunlight in seashore desert can be made full use of, realizes the production of cereal crops;
2. by setting the present invention, the utilization of seawater can be realized, greenhouse can also be utilized to produce more fresh water in process of production Resource.
3. by setting evaporator, evaporation of seawater speed can be accelerated, improve the efficiency of sea water conversion, and can be adjusted big The temperature and humidity of canopy, improves photosynthetic efficiency.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is seawater circulation structure diagram;
Fig. 3 is sea water evaporator structure diagram;
Marked in figure:1 is pedestal, and 2 be waterproof layer, and 3 be planting soil layer, and 4 be salina, and 5 be ground, and 6 be keel shoe, 7 It is deflector, 8 be greenhouse wall, and 9 be supporting rack, and 10 be condenser pipe, and 11 be seawater storage pool, and 12 be water circulating pump, and 13 be evaporation Device, 14 be the first solenoid valve, and 15 be reflux water pump, and 16 be second solenoid valve, and 17 be the 3rd solenoid valve, and 18 be distributive pipe, and 19 are Dropper, 20 be evaporating plate frame, and 21 be evaporating plate, and 22 be base, and 23 be stent.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
As shown in Figure 1-Figure 3, a kind of control system for the greenhouse planted with seawater, including pedestal 1, pedestal 1 It is arranged on below ground surface, setting and waterproof layer 2 on 1 inner wall of pedestal, planting soil layer 3 is provided with waterproof layer 2;1 both ends of pedestal It is connected by the keel shoe 6 of arc, greenhouse wall 8 is provided with keel shoe 6;Seawater steaming is provided with greenhouse with the angle on ground Send out groove 4;Evaporator 13 is provided with salina 4, evaporator 13 includes dropper 19.It is single that control system includes center control Member, signal conditioning circuit, A/D conversion circuits, are provided with the first temperature sensor, the output terminal of the first temperature sensor in greenhouse Be connected with the signal input part signal of signal conditioning circuit, the signal output part of signal conditioning circuit and A/D conversion circuits Input end signal is connected, and the output terminal of A/D conversion circuits is connected with central control unit signal.
Further, the invention discloses a kind of preferred knot of the control system for the greenhouse planted with seawater Structure, is provided with multiple supporting racks 9 on the pedestal 1, supporting rack 9 is connected with the middle part of keel shoe 6, is provided between supporting rack 9 Condenser pipe 10, the output terminal of condenser pipe 10 are connected with 13 input terminal of evaporator;The evaporator 13 includes base 22, on base 22 Stent 23 is provided with, distributive pipe 18 is fixedly connected with stent 23, distributive pipe 18 is connected with some droppers 19, dropper by pipeline Some through holes are provided with 19.Salina(4)In be provided with second temperature sensor, the output terminal of second temperature sensor leads to Cable is crossed to be electrically connected with the signal input part of signal conditioning circuit.
Further, evaporating plate frame 20 is provided with the base 22, evaporating plate frame 20, evaporating plate are both provided with dropper Frame 20 is rectangular frame structure, is provided with evaporating plate 21 on the cavity in evaporating plate frame 20, evaporating plate 21 is made into for chemical fibre Porous network structure cloth;Seawater can be dropped on evaporating plate frame 20 from dropper 19, and flows slowly into sea along evaporating plate 21 In water evaporation groove 4.
Further, the greenhouse is nearby provided with seawater storage pool 11, and seawater storage pool 11 passes through pipeline and condenser pipe 10 input terminal is connected, and turning for 12 water circulating pump of water circulating pump is provided with the pipeline that seawater storage pool 11 is connected with condenser pipe 10 Circulation motor is provided with axis.Control system includes driving circuit for electromagnetic valve, and the signal input part of driving circuit for electromagnetic valve is with Centre control unit signal is connected, the output terminal of driving circuit for electromagnetic valve respectively with the 3rd solenoid valve(17)And second solenoid valve(16) It is electrically connected.
Further, the output terminal of the condenser pipe 10 being connected by pipeline and distributive pipe 18, condenser pipe 10 and Fen Shui The 3rd solenoid valve 17 is provided with the connected pipeline of pipe 18;The output terminal of salina 4 passes through pipeline and seawater storage pool 11 are connected;Second solenoid valve 16 is provided with the pipeline that salina 4 is connected with seawater storage pool 11.
Further, the distributive pipe 18 is connected by pipeline with salina 4, distributive pipe 18 and salina 4 Reflux 15 and first solenoid valve 14 of water pump is provided with connected pipeline, reflux motor is provided with the shaft for the water pump 15 that flows back. Control system includes the second motor-drive circuit, signal input part and the central control unit signal phase of the second motor-drive circuit Even, the output terminal of the second motor-drive circuit is electrically connected with reflux motor.
Further, multiple deflectors 7 for being used to guide current are set on the greenhouse wall 8, and deflector 7 is uniformly arranged on On greenhouse wall 8.
When specifically used, by greenhouse build by the sea or salt-soda soil water source side, insert what can directly be planted in greenhouse Soil, greenhouse is sealed and can be used.
Carrying out practically process, after sun rise comes, the temperature rise of greenhouse, greenhouse is interior to be full of vapor;Then circulate Electric motor starting, circulation motor drive water circulating pump operating, and water circulating pump is by the low temperature seawater or saline-alkali water in seawater storage pool 11 Suction, and be transported in condenser pipe 10, the temperature of condenser pipe 10 reduces, and the Water vapor condensation in greenhouse is on condenser pipe 10, so Water droplet is instilled from condenser pipe 10 in soil afterwards, is watered for soil.Meanwhile the temperature of greenhouse can be reduced, improve the growth speed of crop Degree.In the process of running, the temperature of seawater gradually rises condenser pipe 10, then by the seawater injection evaporator 13 of heating, steams Hair device 13 can accelerate evaporation of seawater, improve seawater transformation efficiency.
Seawater is flowed out from dropper 19 and dropped onto on evaporating plate 21, and evaporating plate 21 is net structure, and venting capability is good, air Circulation energy fast speed belt walk moisture.Seawater evaporates in salina 4, and more moisture are provided for greenhouse.As the time pushes away Moving, the hot water in salina 4 gradually increases, after the temperature of greenhouse is reduced to photosynthesis optimal critical point, circulation electricity Organ closes, and condenser pipe 10 is out of service.Hot water in salina 4 can provide heat for greenhouse, prevent that greenhouse temperature is too low Plant is caused to be damaged by frost.Under the low temperature environment at night, the Water vapor condensation in greenhouse is on greenhouse wall 8, then along deflector 7 It is back on crop, without returning in salina 4.Reflux water pump 15 can make seawater in salina 4 and evaporating plate Flowed back and forth between 21, increase flow efficiency and rate of heat dispation.
The seawater to cool down is input in seawater storage pool 11 by morning, salina 4, repeats to follow above Ring.In this way, greenhouse-environment just can be utilized, fresh water is much constantly manufactured, for crop growth.
To the later stage, after the fresh water of production is more than the growth demand of crop, by being provided with guiding device on condenser pipe 10 By fresh water collecting into container, the production of fresh water is realized.
Embodiment 1:
A kind of control method of the control system for the greenhouse planted with seawater, comprises the following steps:
1. temperature signal is converted into electric signal 001 and passes to signal conditioning circuit by the first temperature sensor, second temperature passes Temperature signal is converted into electric signal 002 and passes to signal conditioning circuit by sensor, and signal conditioning circuit passes after signal is amplified A/D conversion circuits are passed, A/D conversion circuits convert analog signals into digital signal and pass to central control unit;
After 2. central control unit receives signal 001,002, central control unit is preset with photosynthesis of plant efficiency maximum Temperature value T1, after the temperature value representated by signal 001 is more than temperature T1, central control unit is to the first motor-drive circuit Drive signal 003 is sent, the first motor-drive circuit receives rear control loop electric motor starting, and circulation motor drives water circulating pump 12 rotate, and seawater is pumped into condenser pipe 10 by water circulating pump;
3. condenser pipe 10 on its surface and instills the Water vapor condensation in greenhouse in soil, the temperature of seawater is in condenser pipe 10 In gradually rise, and enter in distributive pipe 18, distributive pipe 18 inputs seawater in dropper 19, and dropper 19, which instills seawater, to be evaporated On piece 21, seawater evaporates on evaporating plate 21, and temperature reduces;
4. central control unit calculates the difference t of temperature value T1 and 001 temperature displaying function of signal, central control unit is to electromagnetism Valve-driving circuit sends digital signaling zero 04, and the 3rd solenoid valve 17 of control is opened after driving circuit for electromagnetic valve receives, and difference t is got over Greatly, the flow velocity that the 3rd solenoid valve 17 is opened is bigger;
5. 001 temperature displaying function of electric signal is less than temperature value T1, central control unit sends digital signal to driving circuit for electromagnetic valve 005, the 3rd solenoid valve 17 of control is closed after driving circuit for electromagnetic valve receives, and central control unit is to the first motor-drive circuit Drive signal 006 is sent, the first motor-drive circuit receives rear control loop motor and closes;
6. central control unit sends digital signaling zero 07 to driving circuit for electromagnetic valve, driving circuit for electromagnetic valve controls after receiving First solenoid valve 14 is opened, and central control unit sends drive signal 008, the second motor driving electricity to the second motor-drive circuit Control reflux motor is opened after road receives;Reflux motor drives reflux water pump 15 to rotate, and drives seawater in evaporating plate 21 and sea Flowed between water evaporation groove 4;
7. temperature T2 is preset with central control unit, when 002 temperature displaying function of signal is less than temperature T2, central control unit Digital signaling zero 09 is sent to driving circuit for electromagnetic valve, control second solenoid valve 16 is opened after driving circuit for electromagnetic valve receives, sea Current are returned in seawater storage pool 11;
8. temperature T2 is preset with central control unit, when 002 temperature displaying function of signal is more than temperature T2, central control unit Digital signaling zero 10 is sent to driving circuit for electromagnetic valve, control second solenoid valve 16 is closed after driving circuit for electromagnetic valve receives.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.

Claims (14)

  1. A kind of 1. control system for the greenhouse planted with seawater, it is characterised in that:Including pedestal(1), pedestal(1)If Put below ground surface, pedestal(1)Setting and waterproof layer on inner wall(2), waterproof layer(2)On be provided with planting soil layer(3);Pedestal (1)The keel shoe that both ends pass through arc(6)It is connected, keel shoe(6)On be provided with greenhouse wall(8);The angle in greenhouse and ground Place is provided with salina(4);Salina(4)Inside it is provided with evaporator(13), evaporator(13)Including dropper(19); Control system includes central control unit, signal conditioning circuit, A/D conversion circuits, and the first temperature sensor is provided with greenhouse, The output terminal of first temperature sensor is connected with the signal input part signal of signal conditioning circuit, the signal of signal conditioning circuit Output terminal is connected with the input end signal of A/D conversion circuits, output terminal and the central control unit signal phase of A/D conversion circuits Even;
    The control method of control system, comprises the following steps:
    1. temperature signal is converted into electric signal 001 and passes to signal conditioning circuit by the first temperature sensor, second temperature passes Temperature signal is converted into electric signal 002 and passes to signal conditioning circuit by sensor, and signal conditioning circuit passes after signal is amplified A/D conversion circuits are passed, A/D conversion circuits convert analog signals into digital signal and pass to central control unit;
    After 2. central control unit receives signal 001,002, central control unit is preset with photosynthesis of plant efficiency maximum Temperature value T1, after the temperature value representated by signal 001 is more than temperature T1, central control unit is to the first motor-drive circuit Drive signal 003 is sent, the first motor-drive circuit receives rear control loop electric motor starting, and circulation motor drives water circulating pump (12)Rotate, seawater is pumped into condenser pipe by water circulating pump(10)In;
    3. condenser pipe(10)Water vapor condensation in greenhouse on its surface and is instilled in soil, the temperature of seawater is in condenser pipe (10)In gradually rise, and enter distributive pipe(18)In, distributive pipe(18)Seawater is inputted into dropper(19)In, dropper(19)Will Seawater instills evaporating plate(21)On, seawater is in evaporating plate(21)Upper evaporation, temperature reduce;
    4. central control unit calculates the difference t of temperature value T1 and 001 temperature displaying function of signal, central control unit is to solenoid valve Drive circuit sends digital signaling zero 04, and driving circuit for electromagnetic valve controls the 3rd solenoid valve after receiving(17)Open, difference t is got over Greatly, the 3rd solenoid valve(17)The flow velocity of opening is bigger;
    5. 001 temperature displaying function of electric signal is less than temperature value T1, central control unit sends digital signal to driving circuit for electromagnetic valve 005, driving circuit for electromagnetic valve controls the 3rd solenoid valve after receiving(17)Close, central control unit drives electricity to the first motor Road sends drive signal 006, and the first motor-drive circuit receives rear control loop motor and closes;
    6. central control unit sends digital signaling zero 07 to driving circuit for electromagnetic valve, driving circuit for electromagnetic valve controls after receiving First solenoid valve(14)Open, central control unit sends drive signal 008, the driving of the second motor to the second motor-drive circuit Control reflux motor is opened after circuit receives;The motor that flows back drives reflux water pump(15)Rotate, drive seawater in evaporating plate (21)With salina(4)Between flow;
    7. be preset with temperature T2 in central control unit, when 002 temperature displaying function of signal is less than temperature T2, central control unit to Driving circuit for electromagnetic valve sends digital signaling zero 09, and driving circuit for electromagnetic valve controls second solenoid valve after receiving(16)Open, sea Current return seawater storage pool(11)In;
    8. be preset with temperature T2 in central control unit, when 002 temperature displaying function of signal is more than temperature T2, central control unit to Driving circuit for electromagnetic valve sends digital signaling zero 10, and driving circuit for electromagnetic valve controls second solenoid valve after receiving(16)Close.
  2. A kind of 2. control system for the greenhouse planted with seawater as claimed in claim 1, it is characterised in that:It is described Pedestal(1)On be provided with multiple supporting racks(9), supporting rack(9)With keel shoe(6)Middle part be connected, supporting rack(9)Between set There is condenser pipe(10), condenser pipe(10)Output terminal and evaporator(13)Input terminal is connected;The evaporator(13)Including base (22), base(22)On be provided with stent(23), stent(23)On be fixedly connected with distributive pipe(18), distributive pipe(18)Pass through pipe Road is connected with some droppers(19), dropper(19)On be provided with some through holes;Salina(4)In be provided with second temperature sensing Device, the output terminal of second temperature sensor are electrically connected by cable with the signal input part of signal conditioning circuit.
  3. A kind of 3. control system for the greenhouse planted with seawater as claimed in claim 2, it is characterised in that:It is described Base(22)On be provided with evaporating plate frame(20), evaporating plate frame is both provided with dropper(20), evaporating plate frame(20)For rectangle frame Frame structure, evaporating plate frame(20)Evaporating plate is provided with interior cavity(21), evaporating plate(21)It is made into for chemical fibre porous Net structure cloth;Seawater can be from dropper(19)It is dropped in evaporating plate frame(20)On, and along evaporating plate(21)Flow slowly into sea Water evaporation groove(4)In.
  4. A kind of 4. control system for the greenhouse planted with seawater as claimed in claim 3, it is characterised in that:It is described Greenhouse is nearby provided with seawater storage pool(11), seawater storage pool(11)Pass through pipeline and condenser pipe(10)Input terminal be connected, Seawater storage pool(11)With condenser pipe(10)Water circulating pump is provided with connected pipeline(12)Set in the shaft of water circulating pump There is circulation motor;Control system includes the first motor-drive circuit, and signal input part and the center of the first motor-drive circuit are controlled Cell signal processed is connected, and the output terminal of the first motor-drive circuit is electrically connected with circulation motor.
  5. A kind of 5. control system for the greenhouse planted with seawater as claimed in claim 4, it is characterised in that:It is described Condenser pipe(10)Output terminal pass through pipeline and distributive pipe(18)Be connected, condenser pipe(10)With distributive pipe(18)Connected pipe The 3rd solenoid valve is provided with road(17);Salina(4)Output terminal pass through pipeline and seawater storage pool(11)It is connected;Sea Water evaporation groove(4)With seawater storage pool(11)Second solenoid valve is provided with connected pipeline(16);Control system includes electromagnetism Valve-driving circuit, the signal input part of driving circuit for electromagnetic valve are connected with central control unit signal, driving circuit for electromagnetic valve Output terminal respectively with the 3rd solenoid valve(17)And second solenoid valve(16)It is electrically connected.
  6. A kind of 6. control system for the greenhouse planted with seawater as claimed in claim 5, it is characterised in that:It is described Distributive pipe(18)Pass through pipeline and salina(4)It is connected, distributive pipe(18)With salina(4)Set on connected pipeline It is equipped with reflux water pump(15)With the first solenoid valve(14), flow back water pump(15)Shaft on be provided with reflux motor;Control system Including the second motor-drive circuit, the signal input part of the second motor-drive circuit is connected with central control unit signal, and second The output terminal of motor-drive circuit is electrically connected with reflux motor.
  7. A kind of 7. control system for the greenhouse planted with seawater as claimed in claim 6, it is characterised in that:It is described Greenhouse wall(8)It is upper that multiple deflectors for being used to guide current are set(7), deflector(7)It is uniformly arranged on greenhouse wall(8)On.
CN201711127771.7A 2017-11-15 2017-11-15 A kind of control system and method for the greenhouse planted with seawater Withdrawn CN107966924A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4343683A (en) * 1978-01-12 1982-08-10 Diggs Richard E Method for desalinating water
DE3332499A1 (en) * 1983-09-08 1985-04-11 Western Promotions Ltd Greenhouse system with solar-powered seawater demineralisation, where greenhouse, evaporator, cooler for condensation, and condensation are combined due to the biological microclimate of the crops to a functionally and economically complementing unit
DE3612188A1 (en) * 1986-04-11 1987-10-15 Walter Graef Solar sea-water desalination plant
WO1997034831A1 (en) * 1996-03-18 1997-09-25 Top Ecology Co., Ltd. Saltwater distillation housing
CN105936522A (en) * 2016-06-12 2016-09-14 河海大学常州校区 Structure compact type seawater desalination device
CN107311377A (en) * 2017-08-16 2017-11-03 武汉理工大学 Stage type solar energy sea water desalination apparatus and desalination method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4343683A (en) * 1978-01-12 1982-08-10 Diggs Richard E Method for desalinating water
DE3332499A1 (en) * 1983-09-08 1985-04-11 Western Promotions Ltd Greenhouse system with solar-powered seawater demineralisation, where greenhouse, evaporator, cooler for condensation, and condensation are combined due to the biological microclimate of the crops to a functionally and economically complementing unit
DE3612188A1 (en) * 1986-04-11 1987-10-15 Walter Graef Solar sea-water desalination plant
WO1997034831A1 (en) * 1996-03-18 1997-09-25 Top Ecology Co., Ltd. Saltwater distillation housing
CN105936522A (en) * 2016-06-12 2016-09-14 河海大学常州校区 Structure compact type seawater desalination device
CN107311377A (en) * 2017-08-16 2017-11-03 武汉理工大学 Stage type solar energy sea water desalination apparatus and desalination method

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