CN109699482A - A kind of vegetables aerosol cultivation nutrient fluid circulatory system - Google Patents

Abstract

The invention discloses a kind of vegetables aerosol cultivation nutrient fluid circulatory systems, for overcome the problems, such as presently, there are root system environment buffer capacity it is poor, excessively rely on AC power source power supply, nutrient solution waste it is seriously unstable with nutrient composition comprising PLC control system (1), aerosol training device (2), nutrient solution supply system, Nutrition Solution Regulating System and buffering decontamination system；System point three parts are placed on the luggage carrier for possessing three sheaf spaces, and wherein PLC control system (1) and aerosol training device (2) are placed on upper layer；Nutrition Solution Regulating System, buffering decontamination system are placed in middle level；Nutrition liquid pool supply system is placed on the lower layer of luggage carrier；Aerosol trains piping connection between device (2) and buffering decontamination system, buffer piping connection between decontamination system and nutrient solution supply system, piping connection between Nutrition Solution Regulating System and nutrient solution supply system, electric wire connects between PLC control system (1) and nutrient solution supply system and Nutrition Solution Regulating System.

Description

A kind of vegetables aerosol cultivation nutrient fluid circulatory system

Technical field

The present invention relates to the circulator of a kind of plant soil-less culturing and PLC control field, more precisely, the present invention relates to And a kind of vegetables aerosol cultivation nutrient fluid circulatory system.

Background technique

Soilless cultivation is the agricultural high-tech risen now, does not have to soil, and replaces soil with matrix, or straight It connects using liquid nutrient solution culture plant.Because it can effectively overcome soil continuous cropping obstacle existing for traditional earth culture, resources of production tight Many drawbacks such as waste, environmental pollution again, and water-saving, save it is fertile, laborsaving, province function, just favored by countries in the world since appearance. Aerosol training is to be extracted the nutritional ingredient for being dissolved in water by water pump (or ultrasonic wave etc.), then rested by pipeline and mist nozzle Point be supplied to a kind of Soilless Culture Methods of root system of plant, be a kind of nutrient solution it is recyclable absorb, the cultivation skill that utilization rate is high Art, and the contradiction of the moisture of hydroponic plant root, nutrient and oxygen supply is efficiently solved, compare other soilless cultivation sides Formula, water-saving benefit is more obvious, and the limitation by external environment condition is small, wide adaptability.

PLC (programmable logic controller (PLC)) is a kind of control equipment, uses programmable memory, storage inside journey Sequence can be performed the user oriented instructions such as logical operation, sequential control, timing, counting and arithmetical operation, and can pass through digital quantity Or the various types of mechanical or production processes of input/output control of analog quantity.Due to its strong antijamming capability, high reliablity, Program is easy to learn, and the design debugging cycle of system is short, installation is simple, easy to maintenance, small in size, light-weight, extended capability is strong Deng the automation of detection, monitoring and control suitable for all trades and professions, various occasions.

Soilless cultivation is different from traditional earth culture, and stronger to the dependence of water, moisture can only be obtained with nutrient by nutrient solution , nutrient solution also needs timing to regulate and control.Currently, that there are root system environment buffer capacities is poor, excessively relies on AC power source confession for aerosol training Electricity, the problems such as nutrient solution waste is serious, nutrient composition is unstable, remaining nutrient solution is generally by as waste water after cultivation Reason.

Summary of the invention

The technical problem to be solved by the present invention is to overcome root system environment buffer capacity existing for existing aerosol training technology Difference excessively relies on AC power source power supply, the problem that nutrient solution waste is serious, nutrient composition is unstable, provides a kind of vegetables The aerosol cultivation nutrient fluid circulatory system.

In order to solve the above technical problems, the present invention is achieved by the following technical scheme: a kind of vegetables aerosol The cultivation nutrient fluid circulatory system includes PLC control system, aerosol training device, nutrient solution supply system, Nutrition Solution Regulating System and delays Rush decontamination system；

A kind of vegetables aerosol cultivation nutrient fluid circulatory system is divided into upper, middle, and lower part and is placed on the load for possessing three sheaf spaces In rack, wherein PLC control system and aerosol training device are placed on upper layer；Nutrition Solution Regulating System, buffering decontamination system are placed In the middle layer of luggage carrier；Nutrient solution supply system is then placed on the lower layer of luggage carrier；

Piping connection is used between the aerosol training device and buffering decontamination system, buffering decontamination system and nutrient solution supply It answers using piping connection between system, piping connection, PLC control is used between Nutrition Solution Regulating System and nutrient solution supply system It is connected between system and Nutrition Solution Regulating System using conducting wire.

Referred between PLC control system and Nutrition Solution Regulating System using conducting wire connection described in technical solution: described Nutrition Solution Regulating System include sensor group, level sensor and solenoid valve；The sensor group is passed by pH sensor, EC Sensor and liquid level sensor composition；The pH sensor selects the compound pH glass electrode of model E-201-C, and connector is BNC connector；The EC sensor selects the platinum black conductance electrode of model DJS-1C；The liquid level sensor selects HD- 136P type gas collection cartridge type fluid level transmitter；The pH value temperature transmitter model BPHT-DAI, possess a BNC socket with Four connecting terminals；The level sensor (9) selects the intelligent contact-free level inductor of model Y25-V；Institute The battery valve (7) stated selects the two-position two-way diaphragm of 2W series；

After the BNC connector of pH sensor is inserted on the BNC socket of pH value temperature transmitter, then transmitter and PLC controlled System connection, in 4 connecting terminals of transmitter+,-, H+, for be separately connected power module 5V+, 5V- terminals and The 3+ input terminal of Analog input mModule EM AE08；Red, silver-colored, yellow three lines of EC sensor pass through conducting wire and power supply mould respectively The input terminal 1+ of block 24V+, 24V- terminals and Analog input mModule EM AE08 are connected, the 1- of Analog input mModule It is connected again with 0-；In liquid level sensor terminal box+,-terminals by conducting wire respectively with power module 24V+ terminals and mould The input terminal 2+ of analog quantity input module EM AE08 is connected, and terminals 2- is connected with 3- again；The identical liquid level induction of 4 structures The brown line of device and black line end are connected with power module 24V+, 24V- terminals respectively using conducting wire, 4 red lines then respectively and CPU input terminal DIa.0~DIa.3 of PLC control system is connected；A terminals and power module 24V- for 4 solenoid valves It is connected, another terminals are connected with CPU output terminal DQa.3~DQa.6 of PLC control system respectively, CPU output end DQa.3~DQa.6 of son is connected with the 24V DC power supply terminal L+ of CPU itself again.

PLC control system described in technical solution includes CPU, PLC expansion module, power module, touch screen and control Cabinet；The SIMATIC S7-200 SMART CPU of the CPU selection model SR20；The PLC expansion module selection type Number be EM AE08 Analog input mModule, 8 road analog inputs are provided；The power module selects the bright latitude T- of model Tri- road output switch power source of 150D Xing, output end provide tri- kinds of DC output voltage of 5V, 12V and 24V；The touch screen Select the embedded integrated touch screen of model TPC7062Ti；The control cabinet selects model to be positive safe JXF-50/40/ The concealed distribution box of 20 type cold-rolled steel sheet materials, having a size of 500mm × 400mm × 200mm, plate thickness is greater than 1mm；The EM When AE08 Analog input mModule is connect with SR20 CPU, first by the plastics in the expansion module connected slot of SR20 CPU right end Tegillum is pulled out, then by the slot of the connection plug insertion CPU on the left of expansion module；Power module and CPU pass through certainly The fixed bayonet of the guide rail of body bottom is fixed in steel guide rail, and steel guide rail is threadedly secured in control cabinet；Touch display Screen passes through the CPU connection of cable and PLC control system, i.e. the ethernet interface of the termination of cable one CPU, another end in contact is touched The LAN port of screen, touch display screen are placed on the top of control cabinet；The power module is powered by 220V AC power source, is passed through 220V AC+, 220V AC- terminals are connected with the firewire of household electrical source, zero curve respectively, the power supply connecting terminal of CPU L1, N are connect with power module 220V AC+, 220V AC- respectively, and power supply connecting terminal L+, M points of PLC expansion module Do not connect with the 24V DC+ of power module, 24V DC-, touch screen by conducting wire by power supply power supply port+,-terminals with 24V DC+, the 24V DC- of power module connect.

The training device of aerosol described in technical solution includes aerosol training cabinet, field planting carrying lid, spraying system and field planting block； Hollow box body part of the aerosol training cabinet for cuboid, tank material selection organic glass, cabinet outer patch black-out cloth, on Portion is close to using double faced adhesive tape, lower part then need not, box sizes are 530mm × 500mm × 230mm, are provided in left and right side walls Fluid hole and inlet opening, inlet opening is upper, away from bottom 200mm, fluid hole under, the distance away from the bottom of box be 20mm~ 30mm；The field planting carrying lid is PP material, and having a size of 500mm × 500mm, being evenly distributed 12 apertures thereon is The planting hole of 55mm；The spraying system selection aerosol trains dedicated four spray head and is sprayed ring system, outer diameter 500mm, material For high-quality ppr material, four spray heads are evenly distributed on ring, and the hole of a diameter 4mm is provided in the middle part of ring, is installed on hole There is the connector of the open column shape plastic material of an outer diameter 4mm, connector lower end is screw thread, passes through glue after being threaded into hole Water-stop, upper end are hollow small column, can the directly mating hollow billet use for connecting internal diameter 4mm；The field planting block is that white is anti- Cylindrical block made of light cystosepiment, diameter 58mm, thick 15mm, each field planting block are cut from edge along the center of circle, cut length For 29mm, for being colonized plant；After the spraying system lives annulus by spraying by 3 UPVC plastics saddle clips, saddle card Spraying annulus is fixed on aerosol training cabinet away from the internal side wall at the 115mm of bottom with screw by top and lower part, spraying system Connector open circles styletable with by inlet opening enter aerosol training device inlet tube connect, fixation plant after field planting block It is packed into the planting hole that field planting carrying covers, field planting carrying is covered on aerosol training cabinet, and aerosol trains the fluid hole connection of device Water tank copper sleeve, copper sleeve pass through the external direct connector of ppr tubing internal thread of screw thread, the direct connector connection ppr pipe of internal thread, ppr pipe It is connect with one end of rubber tubing, in the hole insertion buffering sterilization pool that the rubber tubing other end passes through buffering sterilization pool upper cover.

Nutrient solution supply system described in technical solution includes nutrition liquid pool, No. 1 water pump and the spraying timer of circulation；Institute The nutrition liquid pool stated is the case member of cuboid, and pond body material is PP material, is provided with 6 structures on the upper lid of nutrition liquid pool Identical through-hole；No. 1 water pump has selected the monofilm list of model Yi Meite 400G to pump Special water pump；The circulation spray The pause switch electricity-saving appliance of mist timer selection model GB-60 type；The inlet of No. 1 water pump and inlet tube one end connect It connects, is connected after the inlet opening of the other end insertion aerosol training device of inlet tube with the open circles styletable of the connector of spraying system, And tightened connecting pin using self-locking type plastic bundling buckle, the inlet of No. 1 water pump is connect with another section of inlet tube one end, feed liquor The other end of pipe is put into nutrition liquid pool；The attaching plug of No. 1 water pump is inserted on the A socket for recycling spraying timer, even if No. 1 Water pump connects with the firewire for recycling spraying timer with zero curve respectively.

Nutrition Solution Regulating System described in technical solution includes that nutrient solution regulation pond, sensor group, 4 structures are identical Level sensor, the identical solenoid valve of 4 structures and No. 2 water pumps；The nutrient solution regulation pond is the hollow knot of cuboid Structure case member is divided into volume identical four Room space using 3 built-in partitions, respectively adjusts nutrient solution group for containing Acid solution room, lye room, mother liquor room and the clear water of the sulfuric acid solution, sodium hydroxide solution, concentrated nutrient solution mother liquor and the tap water that divide Room, acid solution room, lye room, mother liquor room and clean water chamber side wall away from the hole for being respectively arranged with a diameter 20mm at the 10mm of bottom； No. 2 water pumps select the mini multi-functional filter diving oxygen respirator pump of nine star NS F360 of the model Min River；The acid solution Water tank copper sleeve is installed in hole on room, lye room, mother liquor room and clean water chamber side wall, and water tank copper sleeve passes through the external ppr pipe of screw thread The direct connector of material internal thread, the direct connector of internal thread connect ppr pipe, and ppr pipe is connect with rubber tubing；The sensor group is sensed by pH Device, EC sensor and liquid level sensor composition；Measuring electrode in the pH sensor is placed on the nutrient solution of nutrition liquid pool In, the BNC connector in pH sensor is inserted on pH value temperature transmitter BNC socket, and connecting terminal and the PLC control of transmitter are System connection；Measuring electrode in the EC sensor is placed in the nutrient solution of nutrition liquid pool, three lines in EC sensor with PLC control system connection；The through-hole installation that the stainless steel gas collecting jar with ground-on cover plate of the liquid level sensor is reserved by nutrition liquid pool upper cover In nutrition liquid pool, gas collecting jar with ground-on cover plate bottom end is made to touch nutrient solution bottom of pond portion, terminals and PLC in the terminal box of liquid level sensor Control system is connected；4 level sensors are affixed on the acid solution room in nutrient solution regulation pond, lye using double faced adhesive tape 4 lines of the outer wall setting position of room, mother liquor room and clean water chamber, 4 level sensors are connect with PLC control system；Described 4 A solenoid valve both ends pass through the external direct connector of PPR pipe internal thread of screw thread respectively, and internal thread direct connector in both ends reconnects ppr and manages, and 4 The ppr pipe of a solenoid valve one end is connect with nutrient solution regulation pond, and the ppr pipe of 4 solenoid valve other ends passes through nutrition liquid pool upper cover The through-hole of setting is connected to nutrition liquid pool；No. 2 water pumps are mounted on nutrition liquid pool inside bottom by the small sucker that bottom carries.

Buffering decontamination system described in technical solution includes buffering sterilization pool, ozone generator and ultraviolet germicidal；Institute The buffering sterilization pool stated is the hollow structure case member of cuboid, is PP material, pond body outer patch black-out cloth, body side is the bottom of away from The hole for being connected to nutrition liquid pool is provided at portion 5mm, pond body upper cover is provided with 2 holes；The ozone generator is selected The multifunction negative ion ozone machine ozone generator of the gloomy LS-F8 of model Lay；The ultraviolet germicidal selects model cypress card The quartz glass bactericidal lamp of happy BKL-UVC5；The hole of the buffering sterilization pool side bottom is installed by water tank copper sleeve, water tank copper For connector by the external direct connector of ppr tubing internal thread of screw thread, the direct connector of internal thread connects ppr pipe, and ppr pipe is connect with rubber tubing, Rubber tubing is inserted into nutrition liquid pool by the preformed hole of nutrition liquid pool upper cover；Escape pipe one end on ozone generator is connected to smelly On the venthole of Oxygen Generator, the escape pipe other end by buffer sterilization pool upper cover hole enter buffering sterilization pool in be immersed in Spherical aerator connection in nutrient solution；Ultraviolet germicidal is fixed on the inner wall of nutrition liquid pool by two included powerful electromagnetic chucks On, and be immersed in nutrient solution.

Compared with prior art the beneficial effects of the present invention are:

1. a kind of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention can be according to sensor group in nutrition liquid pool Monitoring information realizes the on-line monitoring and dynamic regulation of nutrient solution prescription by PLC control system, improves the root of aerosol training technology It is buffer capacity；

2. a kind of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention aerosol training device setting fluid hole away from Certain altitude is arranged at bottom, can be detained a part of nutrient solution, and after plant root system development elongation, even if accident power-off, plant can also Nutrient is drawn by root, the excessive dependence to AC power source can be reduced；

3. the liquid level sensor and nutrient solution that a kind of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention is equipped with are mixed Close pump cooperation PLC control system, it can be achieved that nutrient solution it is few with matching less, feeding on demand, guarantee the stability and saving of nutrient solution Property, reduce the waste of nutrient solution；

4. the liquid level sense that nutrient solution regulation pond is equipped in a kind of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention It answers device that can monitor the liquid level condition of each locellus in nutrient solution regulation pond and feeds back to CPU and be shown in touch display screen, liquid level is not It can prompt to be supplemented when sufficient.

Detailed description of the invention

The present invention will be further described below with reference to the drawings:

Fig. 1 is a kind of structural principle schematic block diagram of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention；

Fig. 2 is a kind of work flow diagram of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention；

Fig. 3 is a kind of nutrition liquid pool nutrient solution prescription regulation of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention Schematic diagram；

Fig. 4 is a kind of luggage carrier of the placement package unit of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention；

Fig. 5-1 is a kind of CPU of the PLC control program of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention Startup program figure；

Fig. 5-2 is a kind of nutrient solution of the PLC control program of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention Pond pH detects programme diagram；

Fig. 5-3 is a kind of nutrient solution of the PLC control program of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention Pond EC detects programme diagram；

Fig. 5-4 is a kind of nutrient solution of the PLC control program of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention Pit level detects programme diagram；

Fig. 5-5 is a kind of nutrient solution of the PLC control program of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention When pond pH value is too low plus alkali programme diagram；

Fig. 5-6 is a kind of nutrient solution of the PLC control program of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention Acid adding programme diagram when pond pH value is excessively high；

Fig. 5-7 is a kind of nutrient solution of the PLC control program of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention When pond EC value is too low plus concentrate programme diagram；

Fig. 5-8 is a kind of nutrient solution of the PLC control program of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention When pond EC value is excessively high or liquid level is insufficient plus water programme diagram；

Fig. 5-9 is a kind of nutrient solution of the PLC control program of vegetables aerosol cultivation nutrient fluid circulatory system of the present invention Regulate and control the liquid level monitoring programme diagram of each locellus in pond；

In figure: 1.PLC control system, 2. aerosols training device, 3. nutrient solutions regulation pond, 4. nutrition liquid pools, No. 5.1 water pumps, 6. buffering sterilization pool, 7. solenoid valves, 8. sensor groups, 9. level sensors, No. 10.2 water pumps, 11. ultraviolet germicidals, 12. is smelly Oxygen Generator.

Specific embodiment

The present invention is explained in detail with reference to the accompanying drawing:

Refering to fig. 1, a kind of vegetables aerosol cultivation nutrient fluid circulatory system includes PLC control system 1, aerosol training device 2, nutrition Liquid supply system, Nutrition Solution Regulating System, buffering decontamination system.

To improve space utilization rate, a kind of vegetables aerosol cultivation nutrient fluid circulatory system is divided into upper, middle, and lower part again and places On the luggage carrier for possessing three sheaf spaces.Wherein PLC control system 1 and aerosol training device 2 are placed on upper layer；Nutrient solution regulation system System, buffering decontamination system are placed on the middle layer of luggage carrier；Nutrient solution supply system is then placed on the lower layer of luggage carrier.

The PLC control system 1 includes CPU, PLC expansion module, power module, touch screen and control cabinet, is placed in load The upper layer of rack.

The SIMATIC S7-200 SMART CPU of the model SR20 of the CPU selection Siemens Company production, it is main Complete control and monitoring operation all in PLC control system 1.Its combine Siemens SINAMICS driving product and SIMATIC man-machine interface product is suitble to small automatic control program, and S7-200 SMART SR20 is standard type CPU module, For relay output, by 220V AC power supply, input and output terminal is/8 output of 12 input, supports Ethernet and RS485 logical News.Interface and connecting terminal on SR20 mainly have the fixed bayonet of guide rail, ethernet interface, RS485 communication interface, extension Module connected slot, memory card socket and digital quantity input/output connecting terminal, CPU power supply connecting terminal L1, N and CPU Included sensor 24V DC power supply terminal L+, M.Wherein digital-quantity input terminal has 12, respectively DIa.0~DIa.7 and DIb.0~DIb.3, digital output terminal have 8, respectively DQa.0~DQa.7.

The PLC expansion module is the Analog input mModule of model EM AE08, provides 8 road analog inputs.It is logical Normal sensor output signal is analog quantity, and analog signals are a kind of physical quantitys of consecutive variations, and CPU can only receive digital quantity Signal handles digital quantity.Analog quantity first has to the current or voltage that standard range is converted to by sensor and transmitter, then uses A/ These analog quantitys are converted to digital quantity by D converter.The main function of Analog input mModule is exactly to realize that A/D is converted, by mould Quasi- signal is converted into the receptible digital signal of PLC institute.There is a connection plug on the left of EM AE08 Analog input mModule, Connecting terminal mainly have power supply connecting terminal L+, M and analog input terminal 0+, 0-, 1+, 1-, 2+, 2-, 3+, 3-, 4+, 4-、5+、5-、6+、6-、7+、7-、8+、8-。

The power module selects the bright tri- road output switch power source of latitude T-150D Xing of model, output can provide 5V, Tri- kinds of DC output voltage of 12V and 24V, connecting terminal have 220V AC+, 220V AC-, 5V DC+, 5V DC-, 12V DC+, 12V DC-, 24V DC+, 24V DC- need to connect home communication power supply by 220V AC+, 220V AC- terminals, mainly It is responsible for CPU, expansion module, sensor etc. and power supply is provided.Power module is aluminum anti-corrosion hollow out shell, is not easy to get rusty, possess Multiple cooling vents, by overload, over-voltage, the comprehensive protection power source module of short-circuit protection, performance is stablized.

The model that the touch screen selects Shenzhen the Kunlun on-state automated software Science and Technology Ltd. to produce The embedded integrated touch screen of TPC7062Ti.It is using advanced Cortex-A8 CPU as core (dominant frequency 600MHz) High-performance embedded integrated touch screen uses 7 inches of high brightness TFT liquid crystal displays (resolution ratio is up to 800 × 480), It is four-wire resistance type touch screen.MCGS Embedded Configuration Software has been pre-installed in inside, has 64M memory space, has powerful figure As display and data processing function.USB flash disk can be supported to back up, support RS232/RS485/RJ45 and ethernet communication, Overall Power Consumption It is low, meet the anti-interference standard of National Industrial three-level, degree of protection is up to IP65.Touch display screen is used for each sensor of display system Detected value, level sensor 9 monitoring state and the working condition of each solenoid valve 7 etc..Touch screen working power is 24V There are LAN port, the port USB1, the port USB2 and power supply power supply port in DC, the port at back.

The control cabinet selects model to be positive the concealed distribution box of safe JXF-50/40/20 type cold-rolled steel sheet material, ruler It is very little be 500mm × 400mm × 200mm, plate thickness be greater than 1mm, can insulation voltage 690V, degree of protection reach IP43, shell is fire-retardant , and water proof and dust proof, it is easy for installation.Control cabinet is for installing the parts such as the CPU, expansion module, power module of fixed PLC.

The connection type of the EM AE08 Analog input mModule and SR20 CPU are as follows: first by SR20 CPU right end Plastics tegillum in expansion module connected slot is pulled out, then by the slot of the connection plug insertion CPU on the left of expansion module ?.Power module and CPU are fixed in steel guide rail by the guide rail fixation bayonet of themselves bottom, steel guide rail again with control Cabinet is attached by screw thread.Touch display screen passes through the CPU connection of cable and PLC control system, and cable one terminates CPU's Ethernet interface, another end in contact touch the LAN port of screen, and touch display screen is placed on the top of control cabinet.The power supply Module is powered by 220V AC power source, by 220V AC+, 220V AC- terminals respectively with the firewire of household electrical source, zero curve phase Connection, power supply connecting terminal L1, N of CPU are connect with power module 220V AC+, 220V AC- respectively, PLC expanded mode Power supply connecting terminal L+, M of block connect with the 24V DC+ of power module, 24V DC- respectively, and touch screen will by conducting wire Power supply power supply port+,-terminals connect with the 24V DC+ of power module, 24V DC-, powered by power module.

The aerosol training device 2 is that box aerosol trains equipment, including aerosol training cabinet, field planting carrying lid, spraying system With field planting block.

The aerosol training cabinet is the hollow box body part of cuboid, and tank material, which is selected, to be had the preferable transparency, change The small organic glass with easy processing of stability, mechanical property, corrosion-resistant, moisture-proof, good insulation preformance, specific gravity is learned, aerosol trains cabinet Outer patch black-out cloth, top are close to using double faced adhesive tape, lower part then need not, lower part black-out cloth, observation of plant root can be opened when needing It is upgrowth situation.Box sizes are 500mm × 500mm × 230mm, are provided with fluid hole and inlet opening, feed liquor on a face side wall Hole is upper, and away from bottom 200mm, aperture is smaller, is 8mm, and fluid hole is under, away from bottom 20mm~30mm, aperture 20mm, in cabinet A part of nutrient solution can be detained, when accident power-off, the longer plant of root system can draw nutrient by root, can reduce to alternating current The excessive dependence in source.

The field planting carrying lid has been evenly distributed 12 apertures having a size of 500mm × 500mm for PP material thereon For the planting hole of 55mm, 12 plant can be planted by field planting block, the field planting block is circle made of white reflection cystosepiment Cylindricality block, diameter 58mm, the light of thick 15mm, the reflection of white reflection block are delicate, and effect seems soft naturally, can using it Light filling is carried out to the details at plant shade position, each field planting block is cut from edge along the center of circle, and cut length is 29mm, for fixed Plant is planted, field planting block cut position is opened when transplanting seedlings, after plant is put into center location, the rootstock of plant can be fixed, then It is put into planting hole.

The spraying system selection aerosol trains dedicated four spray head and is sprayed ring system, and shape is annular, outer diameter 500mm, material are high-quality ppr material, and four spray heads are evenly distributed on ring, are provided with a diameter 4mm's in the middle part of ring Hole is equipped with the connector of the open column shape plastic material of an outer diameter 4mm on hole, and connector lower end is screw thread, passes through screw thread Glue sealing after in advances through hole, upper end are hollow small column, can the directly mating hollow billet use for connecting internal diameter 4mm.This is by spraying Atomizing effect of uniting is good, can meet aerial fog cultivation use, and spraying annulus is flexible, can meet plurality of specifications aerial fog cultivation facility It matches, it is easy to install and use.When nutrient solution by inlet tube after inlet opening enters spraying system, be atomized by spray head and be Droplet, then root system of plant is sprayed application to, so that plant is uniformly absorbed nutrition and oxygen.

After the spraying system lives annulus by spraying by 3 UPVC plastics saddle clips, saddle card top and lower part are used Spraying annulus is fixed on aerosol training cabinet away from the internal side wall at the 115mm of bottom by screw.The sky of the connector of spraying system Heart cylindrical end is connect with the inlet tube for entering aerosol training device 2 by inlet opening.It is filled in again after the fixed plant of the field planting block In the planting hole that field planting carrying covers, field planting carrying is covered on aerosol training cabinet, and nutrient solution is sent forth outward when preventing spraying, gas Mist training device 2 is placed on luggage carrier upper layer, and the fluid hole that aerosol trains device 2 connects 4 diversion box copper sleeves, and copper sleeve passes through screw thread The external direct connector of ppr tubing internal thread, rear joint connect the ppr pipe of a bit of outer diameter 20mm, then the rubber tube with outer diameter 20mm Road connection.

The nutrient solution supply system includes 4, No. 1 water pumps 5 of nutrition liquid pool, recycles spraying timer and inlet tube, main It acts on and provides nutrient solution for aerosol training device 2.

The nutrition liquid pool 4 be cuboid hollow case member, pond body material be light, corrosion-resistant, easy processing, Cheap PP material, is placed on luggage carrier lower layer.It is placed in nutrition liquid pool pond body needed for needing to prepare according to aerosol training The nutrient solution of concentration, the nutrient solution prepared are delivered to the spraying system that aerosol trains device 2 through inlet tube by No. 1 water pump 5；Nutrition The through-hole of 6 20mm is provided on the upper lid of liquid pool 4, for connecting solenoid valve 7, buffering sterilization pool 6 and placing in sensor group 8 Liquid level sensor.

No. 1 water pump 5 has selected the monofilm list of model Yi Meite 400G to pump Special water pump, and rated operational voltage is Direct current 24V, rated current 2A, working flow is up to 135L/h, and operating pressure is up to 0.48265MPa.No. 1 water pump 5 is mainly made Device 2 is trained with for nutrient solution configured in nutrition liquid pool 4 is promoted to aerosol, provides required nutrition and moisture for plant.

The spraying timer of the circulation selects the pause switch electricity-saving appliance of model GB-60 type, and shape is common as one Insert row, thereon there are two knob, for adjusting the energization and the intermittent time that recycle spraying timer, energization and intermittent time can be It is selected in 0.5~60 minute, simple and convenient, indicator light arranged at two knob tops, respectively green and red, and green refers to when energization Show that lamp is bright, red indicating light goes out, and red indicating light is bright when interval, and green indicator light goes out, and recycling on spraying timer there are 3 to insert Mouth, respectively A socket, B1 socket and B2 socket.It is widely used between the electric appliances such as automatic control aquarium apparatus, exhaust fan It knocks off work, not only can be with using electricity wisely, but also the service life of electric appliance can be extended.The effect for recycling spraying timer is to pass through regulation The working time of No. 1 water pump 5 indirectly controls the absorption of Plant To Nutrient liquid.

The inlet tube is the PVC hose of internal diameter 4mm, and main function is to provide nutrient solution to enter aerosol training device 2 Channel.

No. 1 water pump 5 and nutrition liquid pool 4 are placed on luggage carrier lower layer, the liquid outlet of described inlet tube one end and No. 1 water pump 5 Be connected, the other end enter aerosol training device 2 inlet opening after be connected with the open circles styletable of the connector of spraying system, and with oneself Locking-type Plastic Bandage button tightens connecting pin；The attaching plug of No. 1 water pump 5 is inserted on the A socket for recycling spraying timer, makes two The firewire of a device connects respectively with zero curve, work and intermittent time by Timer Controlling water pump, the inlet of No. 1 water pump 5 Also one section of inlet tube is connected, the other end of inlet tube is put into nutrition liquid pool 4.

The Nutrition Solution Regulating System include nutrient solution regulation pond 3, sensor group 8, level sensor 9, solenoid valve 7 with No. 2 water pumps 10 are mainly used for that the component of nutrient solution is detected and regulated and controled automatically.

The nutrient solution regulation pond 3 is the hollow structure case member of cuboid, is divided by 3 built-in partitions Volume identical four Room space, respectively acid solution room, lye room, mother liquor room and clean water chamber are contained for adjusting nutrient solution prescription Sulfuric acid solution, sodium hydroxide solution, concentrated nutrient solution mother liquor and tap water, 4 locellus side walls away from setting respectively at the 10mm of bottom It is equipped with the hole of a diameter 20mm, for installing water tank connector connection solenoid valve 7.

The sensor group 8 is made of pH sensor, EC sensor and liquid level sensor, for detecting the spy of nutrient solution Levy index.

The pH sensor selects the compound pH glass electrode of model E-201-C, and connector is BNC connector, is had Higher measurement accuracy and stability are widely used in detect in the every field of pH.It uses potentiometry measurement molten The pH of liquid makes chemical energy switch to electric energy by measuring electrode, and output voltage values, this value is related with the H+ concentration in surveyed solution, Then the pH value of surveyed solution can be obtained.

The model BPHT-DAI of the pH value temperature transmitter selection, to possess a BNC socket and four wiring The small cuboid device of terminal possesses on-line calibration, real-time temperature compensation, electrode damage alarm, measurement accuracy height, response Fastly, long service life, small in size, light-weight, the features such as being easily installed and safeguarding, and there is power down protection, overcurrent protection, over-voltage to protect Protective function can efficiently accomplish conversion, processing etc. to measurement data, be widely used in needing to measure pH value, temperature And the occasion of control, it is suitable for the fields such as plating, food processing, sewage treatment, metallurgy, environmental protection.It need to be by pH sensor when use BNC connector be inserted on transmitter BNC socket, then the connecting terminal of transmitter is connect with PLC control system 1, transmitter Four connecting terminals are respectively+,-, H+ and T (temperature).

The EC sensor selects the platinum black conductance electrode of model DJS-1C, it is widely used in measuring conductance of liquid Rate is suitable for the conductivity such as pure water, high electro conductivity medium solution (such as acid, alkali, industrial wastewater, seawater) and conventional water body Precise measurement.Its working principle is that the resistance value of conductance electrode will change when conductivity changes in water, after And electrode output voltage is caused to change, EC situation in water can be learnt according to output voltage signal.EC sensor is three Line system exports as red, yellow, silver-colored three lines, and wherein red line is power supply electrode line, and silver color is power supply negative line, and yellow is that signal exports Line.

The liquid level sensor selects the gas collection cartridge type fluid level transmitter of model HD-136P, and the sensor is by stainless Steel gas collecting jar with ground-on cover plate, stainless steel capillary and connection box set are at mainly characterizing surveyed liquid level by measurement fluid pressure.Pressure Sensor and signal processing circuit are designed in junction box.Working principle are as follows: stainless steel gas collecting jar with ground-on cover plate is responsible for acquiring liquid pressure Force signal, collected pressure signal pass to sensor by stainless steel capillary, and sensor uses high performance pressure-sensitive core Piece cooperates advanced processing of circuit and technique for temperature compensation, can convert pressure signal to linear electric signal.Because it can avoid Sensor is directly contacted with measured medium, is suitable for the occasions such as high temperature, corrosivity.It is widely used in environmental protection, water conservancy, frequency conversion The level gauging in the fields such as water supply, industrial stokehold, chemical industry controls.The liquid level sensor is two-wire system current-output type, is rung Between seasonable≤1ms, have+,-two terminals, in terminal box, level monitoring is for realizing the few with matching less, on demand of nutrient solution Supply.

The level sensor 9 selects the intelligent contact-free level inductor of model Y25-V, test side one The small cylinder device of a about 15mm of the thickness with red indicating light, level sensor is four-wire system, is had brown, yellow, blue, 4 black Line, wherein blue line is ground terminal, and brown line is power supply electrode line, and black line is power supply negative line, and yellow line is signal output line.Inductor Using advanced signal processing technology and igh-speed wire-rod production line chip, the influence of container wall thickness is breached, is realized to closed The real non-contact detecting of liquid level in container.Without directly contacting with detection liquid, the corrosion such as strong acid and strong base not will receive The corrosion of property liquid, is not influenced by scale or other sundries.Its working method is on-mechanical working method, performance stabilization, service life Durable, high sensitivity, strong antijamming capability, not by outside electromagnetic interference.Level sensor 9 can incude various non-metallic materials Container, such as plastics, glass, ceramics, distance of reaction is up to 12mm or more.Working principle is detected using the inductance capacitance of water Whether the liquid level with the presence of liquid, and when no liquid is close to inductor, red indicating light does not work, on level sensor 9 due to There is certain direct capacitance over the ground in the presence of distribution capacity, when liquid level is slowly increased close to inductor, the parasitism electricity of liquid Appearance will be coupled into direct capacitance, so that final capacitance becomes larger, it is integrated that the capacitance signal of the variation is input to internal control again Circuit carries out signal conversion, is converted into the variable quantity of certain electric signal, then detected by certain algorithm and judged this variation The degree of amount is considered as liquid level when this variable quantity is more than certain threshold value and reaches induction point, and red indicating light is bright.In system Using the level sensor of 4 models, set using 4 locellus outer walls that double faced adhesive tape is tightly attached to nutrient solution regulation pond 3 At position, for monitoring the liquid level condition of the position.

The battery valve 7 selects the two-position two-way diaphragm of 2W series, and performance meets " industrial stokehold System solenoid valve " standard regulation, and passed through CE certification, suitable for automatic as all kinds of pipelines of medium using liquid, gas Change control.Its working principle is that: access is in closed state when power-off, generates electromagnetic force when the coil is energized, and dynamic core overcomes bullet Spring force is attracted with static iron core, directly unlatching valve port, and medium is in access；Electromagnetic force disappearance dynamic core is in spring force when the coil is de-energized Under the action of reset, direct close port, medium channel close.7 operating voltage of solenoid valve is 24V, is two-wire system, respectively supplies Electric electrode line and power supply negative line.In system use 4 models solenoid valve 7, respectively solenoid valve S1, solenoid valve S2, Solenoid valve S3, solenoid valve S4 are respectively used to corresponding sulfuric acid solution, sodium hydroxide in 4 locellus in control nutrient solution regulation pond 3 The outflow of solution, nutrient solution mother liquor and tap water, and then achieve the purpose that regulate and control nutrient solution in nutrition liquid pool 4, on-off is by PLC Control system 1 controls.

No. 2 water pumps 10 select the mini multi-functional filter diving oxygen respirator pump of nine star NS F360 of the model Min River, It is one with 8mm outer diameter hose, the small cuboid device of 4 small suckers of bottom belt possesses advanced for nutrient solution mixing pump Air compression system and shock mitigation system, performance is stable, operating noise is low, energy-efficient, be readily cleaned, have oxygenation, promote The multiple functions such as filtering, can be suitble to the working environments such as fresh water and seawater, operating voltage 220V can be direct in water circulation and cylinder Household electrical source, power 5W are connect, flow reaches 0.85m up to 360L/h, lift.No. 2 water pumps 10 are mainly used for accelerating nutrient solution Mixing, guarantees the uniformity and stability of nutrient composition, is mounted in nutrition liquid pool 4.

4 locellus side walls in the nutrient solution regulation pond 3 first install 4 diversion box copper sleeves away from the hole at the 10mm of bottom, For copper sleeve by the external direct connector of ppr tubing internal thread of screw thread, connector connects the ppr pipe of a bit of outer diameter 20mm, then with outer diameter The rubber tubing of 20mm connects.The pH sensor of the sensor group 8 needs the nutrition of measuring electrode investment nutrition liquid pool 4 first In liquid, then its BNC connector is inserted on pH value temperature transmitter BNC socket, then is by the connecting terminal of transmitter and PLC control 1 connection of system；The EC sensor of the sensor group 8 need to by measuring electrode put into nutrition liquid pool 4 nutrient solution in, then will thirdly Line is connect with PLC control system 1；The liquid level sensor of the sensor group 8 need to be by the stainless steel gas collection of sensor when using Cylinder is entered wherein by the through-hole that 4 upper cover of nutrition liquid pool is reserved, and gas collecting jar with ground-on cover plate bottom end is made to touch 4 bottom of nutrition liquid pool, then by liquid Terminals in the terminal box of level sensor connect with PLC control system 1.4 level sensors 9 need to be first using two-sided Adhesive tape is affixed on 4 locellus outer wall setting positions in nutrient solution regulation pond 3, then is by four lines of level sensor 9 and PLC control 1 connection of system.47 both ends of solenoid valve pass through the external direct connector of PPR pipe internal thread of screw thread respectively, and two end connectors connect again One section of ppr pipe, the ppr pipe at valve both ends are connect, one end is connected with the rubber tubing that nutrient solution regulation pond 3 is connect out, and the other end is direct It is passed through wherein by the through-hole that 4 upper cover of nutrition liquid pool is reserved.No. 2 water pumps 10 are mounted on by the small sucker that bottom carries 4 inside bottom of nutrition liquid pool, the hose of No. 2 water pumps 10 need to expose in air, when power supply need to by its firewire and zero curve respectively with Household electrical source firewire and zero curve connect.

The buffering decontamination system includes buffering sterilization pool 6, ozone generator 12 and ultraviolet germicidal 11, main function For to the nutrient solution and reflux nutrient solution progress sterilizing in system.

The buffering sterilization pool 6 is the hollow structure case member of cuboid, is PP material, is mainly used for temporary from gas Mist trains the nutrient solution that device 2 flows back, and is carried out disinfection to it and oxygenation by ozone generator 12.Pond body outer patch black-out cloth is prevented The only decomposition of nutrient solution is placed on luggage carrier middle layer, and nutrient solution dependence self weight that treated is back to the nutrition liquid pool 4 of lower layer, Realize recycling for nutrient solution.Body side is away from the hole for being provided with 20mm at the 5mm of bottom, for being connected to nutrition liquid pool 4, pond Body upper cover is provided with 2 holes, and diameter is respectively 10mm and 20mm.Nutrient solution after buffered is back to lower layer by self weight Nutrition liquid pool 4 realizes recycling for nutrient solution, reduces the waste and loss of nutrient solution.

The ozone generator 12 selects the multifunction negative ion ozone machine ozone generator of the gloomy LS-F8 of model Lay, It is powered using 220V AC power source, power consumption 18W, and exportable ozone 400mg, can purify 20m per hour²Area, quilt Be widely used in disinfection and sterilization, except aldehyde taste removal, remove hormone, remove pesticide residue, disinfection and purification air etc..Ozone generator 12 passes through Minute/time the settable working time 0-30 of the knob on top, side wall have a venthole, for connecting included escape pipe, lead to It crosses included escape pipe and spherical aerator to carry out disinfection processing to the nutrient solution being back in buffering sterilization pool 6, treated Nutrient solution is back to again in nutrition liquid pool 4.

The quartz glass bactericidal lamp that the ultraviolet germicidal 11 selects model cypress to block happy BKL-UVC5, have sterilization, Disinfection removes algae, four large effect of water purification, applies advanced optics sterilization technology and optimizes the wavelength of light, passes through high light transmission Property quartz glass tube, bacterium in water can be effectively suppressed, prevent bacterial reproduction and algae infestation, keep water quality limpid.It is ultraviolet to kill Bacterium lamp 11 is submersible type, and tail portion uses insulation PE material that meet national standards and is made, and waterproof performance is more preferable, carries independent town Device and independent switch are flowed, can be effectively prevent due to the situations such as the lamp body rupture or short circuit of the unstable generation of electric current, while its light decay Small, product loss is low, long service life.Ultraviolet germicidal 11 is mounted in nutrition liquid pool 4, for the nutrient solution in pond into Row sterilizing.

The hole of buffering 6 side bottom of sterilization pool need to first install 4 diversion box copper sleeves, and connector is external by screw thread The direct connector of ppr tubing internal thread, then the ppr pipe of a bit of outer diameter 20mm is connect, then connect with the rubber tubing of outer diameter 20mm, rubber The preformed hole that the plastic pipe other end directly passes through 4 upper cover of nutrition liquid pool is passed through wherein.The ozone generator 12 will first carry Escape pipe one end be connected on generator venthole, the escape pipe other end by buffer 6 upper cover 10mm of sterilization pool hole enter pond It is connect again with spherical aerator after interior, the spherical aerator connected is placed in buffering sterilization pool 6, is immersed in nutrient solution, is used In the disinfection of reflux nutrient solution.The ultraviolet germicidal 11 is fixed on nutrition liquid pool 4 by two included powerful electromagnetic chucks On inner wall, and it is immersed in nutrient solution.

A kind of vegetables aerosol cultivation nutrient fluid circulatory system includes PLC control system 1, aerosol training device 2, nutrient solution supply system System, Nutrition Solution Regulating System, buffering 5 parts of decontamination system, are next described in detail the connection relationship between this 5 part.

PLC control system 1 is connect with sensor group 8, level sensor 9, solenoid valve 7 by conducting wire, the connection of pH sensor After pH temperature transmitter, then transmitter connect with PLC control system 1, in 4 connecting terminals of transmitter+,-, H+, use In the 3+ input terminal of 5V+, 5V- terminals and Analog input mModule EM AE08 that are separately connected power module；EC sensor For three-wire system, red three line of silver yellow passes through conducting wire and power module 24V+, 24V- terminals and Analog input mModule AE08 respectively Input terminal 1+ be connected, the 1- of Analog input mModule is connected with 0-；Liquid level sensor is two-wire system current-output type ,+,- Terminals pass through the conducting wire input terminal 2+ phase with power module 24V+ terminals and Analog input mModule EM AE08 respectively Even, terminals 2- is connected with 3-.4 level sensors 9 be four-wire system, brown line and black line by conducting wire and power module 24V+, 24V- terminals are connected, and 4 red lines connect with CPU input terminal DIa.0~DIa.3 of PLC control system 1 respectively；4 electromagnetism Valve 7 is two-wire system, and a terminals are connected with power module 24V-, another terminals DQa.3 with CPU output terminal respectively ~DQa.6 connects, this 4 output ends are connected with the 24V DC power supply terminal L+ of CPU itself again.

The other end of the latter linked rubber tubing of fluid hole of aerosol training device 2 is by covering 20mm on buffering sterilization pool 6 Hole be passed through wherein；The other end for buffering the 6 latter linked rubber tubing of bottom side cinclides of sterilization pool is pre- by 4 upper cover of nutrition liquid pool The hole 20mm stayed is passed through wherein；The ppr at 47 both ends of solenoid valve of Nutrition Solution Regulating System is managed, and one end and nutrient solution regulate and control pond 3 The rubber tubing of connection is connected, and the other end is passed through wherein by the 20mm through-hole that 4 upper cover of nutrition liquid pool is reserved.

A kind of working principle of the vegetables aerosol cultivation nutrient fluid circulatory system:

Before a kind of described vegetables aerosol cultivation nutrient fluid circulatory system operation, need first the connection for checking system components and Wiring condition, after everything is ready, be powered starting PLC control system 1, checks each sensor, liquid in sensor group 8 by touch screen The operating condition of position inductor 9 and solenoid valve 7 reads the detected value of each sensor, the monitoring state of each level sensor 9 and each The operating status of solenoid valve 7.

Refering to Fig. 3, the preparation of initial nutrient solution is carried out first, and nutrient solution is checked by the liquid level sensor in sensor group 8 The level value in pond 4 is injected if level value h is lower than setting value h1, opens solenoid valve S4 by the clean water chamber in nutrient solution regulation pond 3 Tap water is to liquid level h2.Check that pH the and EC value of liquid in nutrition liquid pool 4 opens electricity if pH value is less than setting value p1 later Magnet valve S2 is regulated and controled by the sodium hydroxide solution of lye room, if pH is greater than the set value p2, opens solenoid valve S1, by acid solution The sulfuric acid solution of room is regulated and controled；If EC value be less than setting value E1, opens solenoid valve S3, by mother liquor room nutrient solution mother liquor into Row regulation, if EC value is greater than the set value E2, opens solenoid valve S4 is regulated and controled by the tap water of clean water chamber, until by nutrition The level value of liquid is adjusted on h1 in liquid pool 4, and pH is adjusted to be adjusted within the scope of E1~E2 in p1~p2, EC.Level monitoring For realizing nutrient solution it is few with match less, on-demand supply, reduce the waste of nutrient solution.No. 2 water pumps 10 in nutrition liquid pool 4 are used for The mixing for accelerating nutrient solution, guarantees the uniformity and stability of nutrient composition, while can also mix air with nutrient solution, Improve the dissolved oxygen amount in nutrient solution.Ultraviolet germicidal 11 is used for nutrient solution sterilization, disinfection and removes algae.

After nutrient solution is ready, start No. 1 water pump 5, prepared nutrient solution is trained into device 2 through aerosol by inlet tube Inlet opening be promoted in device spraying system, be plant to root system of plant spray nutritious liquor after the atomization of spraying system spray head Nutrition and moisture needed for providing.The extra nutrient solution not being absorbed by plants is less than the part of aerosol training 2 fluid hole of device It is detained in the device, is extended to root system of plant, even if accident power-off, the longer plant of root system can also draw nutrient by root, The excessive dependence to AC power source can be reduced；Liquid level be more than fluid hole part then pass through fluid hole be back to through rubber tubing it is slow The nutrient solution for rushing sterilization pool 6, and being flowed back by 12 Duis of ozone generator carries out disinfection and oxygenation, the nutrient solution after disinfection treatment according to It is back to the nutrition liquid pool 4 of lower layer by self weight, realizes recycling for nutrient solution.

Refering to attached drawing 5-1 to 5-9, the control program of PLC is the design requirement according to control system, passes through PLC programming language The form specification of speech is designed according to the function that actual needs is realized.The programming software of this control system is STEP 7- Micro/WIN SMART.It is the SIMATIC S7-200 smart PLC programming software run on windows platform, letter It is single, easy to learn, it is able to solve complicated automation task.The control program that the present invention is write with ladder diagram mainly includes opening for CPU The level value of detection and adjusting, detection and the adjusting, nutrition liquid pool 4 of the EC value of nutrition liquid pool 4 of dynamic, nutrition liquid pool 4 pH value Detection and adjust with nutrient solution regulation each locellus liquid level in pond 3 monitoring.

Claims (7)

1. a kind of vegetables aerosol cultivation nutrient fluid circulatory system, which is characterized in that a kind of vegetables aerosol cultivation nutrient fluid circulation System includes that PLC control system (1), aerosol training device (2), nutrient solution supply system, Nutrition Solution Regulating System and buffering sterilize System；

A kind of vegetables aerosol cultivation nutrient fluid circulatory system is divided into upper, middle, and lower part and is placed on the luggage carrier for possessing three sheaf spaces On, wherein PLC control system (1) and aerosol training device (2) are placed on upper layer；Nutrition Solution Regulating System, buffering decontamination system are put It sets in the middle layer of luggage carrier；Nutrient solution supply system is then placed on the lower layer of luggage carrier；

Piping connection is used between aerosol training device (2) and buffering decontamination system, buffering decontamination system and nutrient solution supply It answers using piping connection between system, piping connection, PLC control is used between Nutrition Solution Regulating System and nutrient solution supply system It is connect between system (1) and Nutrition Solution Regulating System using conducting wire.

2. a kind of vegetables aerosol cultivation nutrient fluid circulatory system described in accordance with the claim 1, which is characterized in that the PLC control It is connect and is referred to using conducting wire between system (1) processed and Nutrition Solution Regulating System:

The Nutrition Solution Regulating System includes sensor group (8), level sensor (9) and solenoid valve (7)；

The sensor group (8) is made of pH sensor, EC sensor and liquid level sensor；

The pH sensor selects the compound pH glass electrode of model E-201-C, and connector is BNC connector；

The EC sensor selects the platinum black conductance electrode of model DJS-1C；

The liquid level sensor selects HD-136P type gas collection cartridge type fluid level transmitter；

The pH value temperature transmitter model BPHT-DAI, possesses a BNC socket and four connecting terminals；

The level sensor (9) selects the intelligent contact-free level inductor of model Y25-V；

The battery valve (7) selects the two-position two-way diaphragm of 2W series；

After the BNC connector of pH sensor is inserted on the BNC socket of pH value temperature transmitter, then by transmitter and PLC control system (1) connect, in 4 connecting terminals of transmitter+,-, H+, for being separately connected 5V+, 5V- terminals and mould of power module The 3+ input terminal of analog quantity input module EM AE08；

Red, silver-colored, yellow three lines of EC sensor pass through conducting wire and power module 24V+, 24V- terminals and analog input mould respectively The input terminal 1+ of block EM AE08 is connected, and the 1- of Analog input mModule is connected with 0- again；

In liquid level sensor terminal box+,-terminals by conducting wire respectively with power module 24V+ terminals and analog input The input terminal 2+ of module EM AE08 is connected, and terminals 2- is connected with 3- again；

The brown line of the identical level sensor (9) of 4 structures is connect with power module 24V+, 24V- with black line end using conducting wire respectively Line end is connected, and 4 red lines are then connected with CPU input terminal DIa.0~DIa.3 of PLC control system (1) respectively；

One terminals of 4 solenoid valves (7) are connected with power module 24V-, another terminals respectively with PLC control system (1) CPU output terminal DQa.3~DQa.6 be connected, DQa.3~DQa.6 of CPU output terminal again with the 24V DC of CPU itself Power supply terminal L+ is connected.

3. a kind of vegetables aerosol cultivation nutrient fluid circulatory system described in accordance with the claim 1, which is characterized in that the PLC control System (1) processed includes CPU, PLC expansion module, power module, touch screen and control cabinet；

The SIMATIC S7-200 SMART CPU of the CPU selection model SR20；

The Analog input mModule of the PLC expansion module selection model EM AE08, provides 8 road analog inputs；

The power module selects the bright tri- road output switch power source of latitude T-150D Xing of model, output end provide 5V, 12V and Tri- kinds of DC output voltage of 24V；

The touch screen selects the embedded integrated touch screen of model TPC7062Ti；

The control cabinet selects model to be positive the concealed distribution box of safe JXF-50/40/20 type cold-rolled steel sheet material, having a size of 500mm × 400mm × 200mm, plate thickness are greater than 1mm；

When the EM AE08 Analog input mModule is connect with SR20 CPU, first the expansion module of SR20 CPU right end is connected Plastics tegillum on slot is pulled out, then by the slot of the connection plug insertion CPU on the left of expansion module；Power module It is fixed in steel guide rail with CPU by the fixed bayonet of guide rail of themselves bottom, steel guide rail is threadedly secured to control cabinet It is interior；Touch display screen passes through the CPU connection of cable and PLC control system, the i.e. ethernet interface of the termination of cable one CPU, Another end in contact touches the LAN port of screen, and touch display screen is placed on the top of control cabinet；

The power module is powered by 220V AC power source, by 220V AC+, 220V AC- terminals respectively with household electrical source Firewire, zero curve be connected, power supply connecting terminal L1, N of CPU respectively with power module 220V AC+, 220V AC- connect It connects, power supply connecting terminal L+, M of PLC expansion module connect with the 24V DC+ of power module, 24V DC- respectively, touch Screen by conducting wire by power supply power supply port+,-terminals connect with the 24V DC+ of power module, 24V DC-.

4. a kind of vegetables aerosol cultivation nutrient fluid circulatory system described in accordance with the claim 1, which is characterized in that the aerosol training Device (2) includes aerosol training cabinet, field planting carrying lid, spraying system and field planting block；

The aerosol training cabinet is the hollow box body part of cuboid, and tank material selects organic glass, cabinet outer patch shading Cloth, top are close to using double faced adhesive tape, lower part then need not, box sizes are 530mm × 500mm × 230mm, in left and right side walls Be provided with fluid hole and inlet opening, inlet opening is upper, away from bottom 200mm, fluid hole under, the distance away from the bottom of box be 20mm~ 30mm；

The field planting carrying lid is PP material, and having a size of 500mm × 500mm, being evenly distributed 12 apertures thereon is The planting hole of 55mm；

The spraying system selection aerosol trains dedicated four spray head and is sprayed ring system, outer diameter 500mm, and material is high-quality ppr Material, four spray heads are evenly distributed on ring, and the hole of a diameter 4mm is provided in the middle part of ring, and an outer diameter is equipped on hole The connector of the open column shape plastic material of 4mm, connector lower end are screw thread, by being threaded into hole rear glue sealing, on End is hollow small column, can the directly mating hollow billet use for connecting internal diameter 4mm；

The field planting block be white reflection cystosepiment made of cylindrical block, diameter 58mm, thick 15mm, each field planting block from Edge is cut along the center of circle, and cut length is 29mm, for being colonized plant；

After the spraying system lives annulus by spraying by 3 UPVC plastics saddle clips, saddle card top and lower part screw Spraying annulus is fixed on aerosol training cabinet away from the internal side wall at the 115mm of bottom, the open circles of the connector of spraying system Styletable is connect with the inlet tube for entering aerosol training device (2) by inlet opening, and the field planting after fixed plant is packaged to be entered to be colonized carrying In the planting hole covered, field planting carrying is covered on aerosol training cabinet, and the fluid hole connection water tank copper of aerosol training device (2) connects Head, copper sleeve pass through the external direct connector of ppr tubing internal thread of screw thread, the direct connector connection ppr pipe of internal thread, ppr pipe and rubber tube The one end in road connects, in hole insertion buffering sterilization pool (6) of the rubber tubing other end by buffering sterilization pool (6) upper cover.

5. a kind of vegetables aerosol cultivation nutrient fluid circulatory system described in accordance with the claim 1, which is characterized in that the nutrient solution Supply system includes nutrition liquid pool (4), No. 1 water pump (5) and the spraying timer of circulation；

The nutrition liquid pool (4) is the case member of cuboid, and pond body material is PP material, on the upper lid of nutrition liquid pool (4) It is provided with the identical through-hole of 6 structures；

No. 1 water pump (5) has selected the monofilm list of model Yi Meite 400G to pump Special water pump；

The spraying timer of the circulation selects the pause switch electricity-saving appliance of model GB-60 type；

The inlet of No. 1 water pump (5) is connect with inlet tube one end, other end insertion aerosol training device (2) of inlet tube Inlet opening after be connected with the open circles styletable of the connector of spraying system, and connecting pin is pricked using self-locking type plastic bundling buckle Tightly, the inlet of No. 1 water pump (5) is connect with another section of inlet tube one end, and the other end of inlet tube is put into nutrition liquid pool (4)；1 The attaching plug of number water pump (5) is inserted on the A socket for recycling spraying timer, even if No. 1 water pump (5) and recycling spraying timer Firewire connect respectively with zero curve.

6. a kind of vegetables aerosol cultivation nutrient fluid circulatory system described in accordance with the claim 1, which is characterized in that the nutrient solution Regulator control system includes nutrient solution regulation pond (3), sensor group (8), the identical level sensor (9) of 4 structures, 4 structure phases Same solenoid valve (7) and No. 2 water pumps (10)；

Nutrient solution regulation pond (3) is the hollow structure case member of cuboid, divides adult using 3 built-in partitions Product identical four Room space, respectively for containing the sulfuric acid solution, sodium hydroxide solution, the concentrated nutrition that adjust nutrient solution prescription The acid solution room of liquid mother liquor and tap water, lye room, mother liquor room and clean water chamber, acid solution room, lye room, mother liquor room and clean water chamber side Wall is away from the hole for being respectively arranged with a diameter 20mm at the 10mm of bottom；

No. 2 water pumps (10) select the mini multi-functional filter diving oxygen respirator pump of nine star NS F360 of the model Min River；

Water tank copper sleeve is installed in hole on the acid solution room, lye room, mother liquor room and clean water chamber side wall, and water tank copper sleeve passes through The external direct connector of ppr tubing internal thread of screw thread, the direct connector of internal thread connect ppr pipe, and ppr pipe is connect with rubber tubing；

The sensor group (8) is made of pH sensor, EC sensor and liquid level sensor；

Measuring electrode in the pH sensor is placed in the nutrient solution of nutrition liquid pool (4), the BNC connector in pH sensor It is inserted on pH value temperature transmitter BNC socket, the connecting terminal of transmitter is connect with PLC control system (1)；

Measuring electrode in the EC sensor is placed in the nutrient solution of nutrition liquid pool (4), three lines in EC sensor with PLC control system (1) connection；

The stainless steel gas collecting jar with ground-on cover plate of the liquid level sensor is mounted on nutrition liquid pool by the through-hole that nutrition liquid pool (4) upper cover is reserved (4) in, gas collecting jar with ground-on cover plate bottom end is made to touch nutrition liquid pool (4) bottom, the terminals in the terminal box of liquid level sensor and PLC are controlled System (1) is connected；

4 level sensors (9) are affixed on acid solution room, the lye room, mother liquor of nutrient solution regulation pond (3) using double faced adhesive tape 4 lines of the outer wall setting position of room and clean water chamber, 4 level sensors (9) are connect with PLC control system (1)；

4 solenoid valve (7) both ends pass through the external direct connector of PPR pipe internal thread of screw thread respectively, and both ends internal thread directly connects Head reconnects ppr pipe, and the ppr pipe of 4 solenoid valve (7) one end is connect with nutrient solution regulation pond (3), 4 solenoid valve (7) other ends Ppr pipe by nutrition liquid pool (4) upper cover be arranged through-hole be connected to nutrition liquid pool (4)；No. 2 water pumps (10) are included by bottom Small sucker be mounted on nutrition liquid pool (4) inside bottom.

7. a kind of vegetables aerosol cultivation nutrient fluid circulatory system described in accordance with the claim 1, which is characterized in that the buffering disappears Malicious system includes buffering sterilization pool (6), ozone generator (12) and ultraviolet germicidal (11)；

The buffering sterilization pool (6) is the hollow structure case member of cuboid, is PP material, pond body outer patch black-out cloth, pond For body side surface away from the hole being provided at the 5mm of bottom for being connected to nutrition liquid pool (4), pond body upper cover is provided with 2 holes；

The ozone generator (12) selects the multifunction negative ion ozone machine ozone generator of the gloomy LS-F8 of model Lay；

The quartz glass bactericidal lamp that the ultraviolet germicidal (11) selects model cypress to block happy BKL-UVC5；

Water tank copper sleeve is installed in the hole of described buffering sterilization pool (6) side bottom, and water tank copper sleeve passes through the external ppr pipe of screw thread The direct connector of material internal thread, the direct connector of internal thread connect ppr pipe, and ppr pipe is connect with rubber tubing, and rubber tubing passes through nutrition liquid pool (4) preformed hole of upper cover is inserted into nutrition liquid pool (4)；Escape pipe one end on ozone generator (12) is connected to ozone generator (12) on venthole, the escape pipe other end is entered in buffering sterilization pool (6) by the hole of buffering sterilization pool (6) upper cover and submergence Spherical aerator connection in nutrient solution；Ultraviolet germicidal (11) is fixed on nutrition liquid pool by two included powerful electromagnetic chucks (4) it on inner wall, and is immersed in nutrient solution.