CN215602369U

CN215602369U - Photovoltaic drive-based seawater desalination vegetable irrigation device

Info

Publication number: CN215602369U
Application number: CN202122067772.5U
Authority: CN
Inventors: 李福林; 王薇; 孙力; 陈华伟; 吴振; 王开然; 傅世东
Original assignee: Water Resources Research Institute of Shandong Province
Current assignee: Water Resources Research Institute of Shandong Province
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-01-25
Anticipated expiration: 2031-08-27

Abstract

A seawater desalination vegetable irrigation device based on photovoltaic drive comprises a plurality of photovoltaic power generation boards and a controller, wherein electric field sensors and power regulators which are matched with each other are connected on the photovoltaic power generation boards, a seawater desalination pipe is arranged between every two adjacent photovoltaic power generation boards, a plunger pump is arranged on an output pipe of each seawater desalination pipe, an irrigation assembly is mounted on each plunger pump and comprises a main output pipe connected with the plunger pump, a plurality of auxiliary output pipes are connected on the main output pipe, a radial irrigation pipe is arranged on the auxiliary output pipe far away from one side of a circular connecting piece, a solenoid valve is arranged on each irrigation pipe, a spray nozzle is arranged at the end of each irrigation pipe, a timer is arranged on each auxiliary output pipe, the controller is connected with the plunger pumps and the solenoid valves through drivers, and is connected with the electric field sensors through AD converters, the controller is connected with the photovoltaic power generation panel through the power regulator, and the timer is connected with the controller.

Description

Photovoltaic drive-based seawater desalination vegetable irrigation device

The technical field is as follows:

the utility model relates to a photovoltaic drive-based seawater desalination vegetable irrigation device.

Background art:

the photovoltaic is a short for solar photovoltaic power generation system, is a novel power generation system which directly converts solar radiation energy into electric energy by utilizing the photovoltaic effect of a solar cell semiconductor material and has two modes of independent operation and grid-connected operation; a photovoltaic panel assembly is a power generation device which generates direct current upon exposure to the sun, and is composed of a thin solid photovoltaic cell made almost entirely of a semiconductor material, and can be operated for a long time without causing any loss because of the absence of movable parts.

The seawater desalination by utilizing photovoltaic power generation is a novel technology, and based on the electrodialysis principle, under the drive of an external direct current electric field, the selective permeability of an ion exchange membrane is utilized, namely cations can permeate a cation exchange membrane, anions can permeate an anion exchange membrane, and the anions and the cations respectively move to an anode and a cathode; in the ion migration process, if the fixed charge of the membrane is opposite to the charge of the ions, the ions can pass through; if the charges of the two are the same, the ions are repelled, so that the purposes of solution desalination, concentration, refining or purification and the like are achieved.

In the actual use process of the existing seawater desalination vegetable irrigation device, the irrigation flow and the irrigation time are difficult to adjust and are not easy to control; meanwhile, in general conditions, direct current electric fields corresponding to electrodialysis are constant, so that the mineral content of desalted water obtained by desalting is low, the vegetables can be irrigated and survived only by adding nutrient solution, and the production cost is high.

The utility model has the following contents:

the embodiment of the utility model provides a photovoltaic-driven seawater desalination vegetable irrigation device which is reasonable in structural design, based on the integrated control principle of a single chip microcomputer controller, matched with a corresponding mechanical structure assembly, and capable of automatically adjusting irrigation flow and irrigation time according to actual requirements, improving flexibility of vegetable irrigation and facilitating control; meanwhile, the electric field intensity of the direct current electric field can be adjusted, the mineral content in the desalted water is prevented from being too low, the condition of vegetable growth is met, the operation steps are simplified, the production cost is reduced, and the problems in the prior art are solved.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the seawater desalination vegetable irrigation device based on photovoltaic driving comprises a plurality of photovoltaic power generation boards and a controller, wherein the photovoltaic power generation boards are used for providing a direct current electric field to desalt seawater in an electrodialysis mode; the photovoltaic power generation panel is connected with an electric field sensor and a power regulator which are matched with each other to detect and regulate the direct current electric field intensity of the photovoltaic power generation panel; seawater desalination pipes are respectively arranged between two adjacent photovoltaic power generation plates, and a plunger pump is respectively arranged on an output pipe of each seawater desalination pipe and is used for outputting desalinated water after desalination; the plunger pump is provided with an irrigation assembly, the irrigation assembly comprises a main output pipe connected with the plunger pump, and the main output pipe is connected with a plurality of auxiliary output pipes through a circular adapter to form a well network structure; radial irrigation pipes are arranged on the auxiliary output pipe far away from one side of the circular connecting piece, each irrigation pipe is provided with an electromagnetic valve respectively, the electromagnetic valves are used for adjusting irrigation flow, the end part of each irrigation pipe is provided with a spray head respectively, the auxiliary output pipes are provided with timers respectively, and the timers are used for recording and adjusting irrigation time; the controller passes through the driver and links to each other with plunger pump and solenoid valve, the controller passes through AD converter and links to each other with electric field sensor, the controller passes through power conditioner and links to each other with photovoltaic power generation board, the timer links to each other with the controller.

The main output pipe is provided with a backflow preventing assembly, and the backflow preventing assembly is used for preventing the desalted water in the main output pipe from flowing back; the backflow preventing assembly comprises a sleeve, a plurality of limiting plates are symmetrically arranged in the sleeve, and the limiting plates are connected with the inner wall of the sleeve through springs respectively.

The number of the limiting plates is 6-10, and a reference line is arranged in the sleeve.

The spray head is provided with an active carbon filter screen to reduce impurities in the desalted water, and is also provided with a rotating shaft to drive the spray head to rotate.

The model of controller is STM32F103C8T6, is equipped with 64 pins on the controller, the controller links to each other with the AD converter through fifteen numbers pin, the controller links to each other with power regulator through twenty numbers pin and twenty-one number pin, the controller links to each other with the time-recorder through thirty-three number pin, the controller links to each other with the driver through thirty-eight number pin and forty-five number pin.

The model of AD converter is AD8551, is equipped with 8 pins on the AD converter, the AD converter links to each other through No. six pins and No. fifteen pins of controller, the AD converter links to each other with electric field sensor through No. three pins.

The driver is in a ULN2003 model, 16 pins are arranged on the driver, a pin I of the driver is connected with a pin thirty-eight of the controller, a pin sixteen of the driver is connected with the first electromagnetic relay through the first diode and the fifth resistor, and the first electromagnetic relay is provided with a plunger pump interface; and a seventh pin of the driver is connected with a forty-five pin of the controller, a tenth pin of the driver is connected with a second electromagnetic relay through a second diode and a sixth resistor, and the second electromagnetic relay is provided with an electromagnetic valve interface.

The type of the timer is DS1302, 8 pins are arranged on the timer, a fourth capacitor and a fourth resistor which are connected in parallel are arranged on a pin six and a pin seven of the timer, and the pin seven of the timer is connected with a pin thirty-three of the controller.

By adopting the structure, the direct current electric field strength of the photovoltaic power generation panel is detected and adjusted through the electric field sensor and the power adjuster which are matched; outputting the desalinated water after desalination through a plunger pump, and irrigating vegetables through an irrigation assembly with a well-mesh structure; the corresponding irrigation time is recorded and adjusted through a timer, and the irrigation flow is adjusted through an electromagnetic valve, so that intelligent and efficient irrigation is realized; various electrical elements are conveniently operated and adjusted by workers through the controller, and the controller has the advantages of simplicity, convenience, high efficiency and low cost.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the backflow prevention assembly of the present invention.

Fig. 3 is a schematic structural diagram of the showerhead of the present invention.

Fig. 4 is a control schematic of the present invention.

Fig. 5 is an electrical schematic of the controller of the present invention.

Fig. 6 is an electrical schematic diagram of the AD converter of the present invention.

Fig. 7 is a schematic structural diagram of a power conditioner of the present invention.

Fig. 8 is an electrical schematic of the actuator of the present invention.

Fig. 9 is an electrical schematic of the timepiece of the utility model.

In the figure, the photovoltaic power generation panel 1, the seawater desalination tube 2, the plunger pump 3, the main output tube 4, the main output tube 5, the circular connecting piece 6, the auxiliary output tube 7, the irrigation tube 8, the electromagnetic valve 9, the nozzle 10, the sleeve 11, the limiting plate 12, the spring 13, the datum line 14, the activated carbon filter screen 15 and the rotating shaft.

The specific implementation mode is as follows:

in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.

As shown in fig. 1-9, the device for irrigating vegetables by desalinating seawater based on photovoltaic driving comprises a plurality of photovoltaic power generation panels 1 and a controller, wherein the photovoltaic power generation panels 1 are used for providing a direct current electric field to desalinate seawater in an electrodialysis mode; an electric field sensor and a power regulator which are matched with each other are connected to the photovoltaic power generation panel 1 to detect and regulate the direct-current electric field intensity of the photovoltaic power generation panel 1; seawater desalination pipes 2 are respectively arranged between two adjacent photovoltaic power generation plates 1, a plunger pump 3 is respectively arranged on an output pipe of each seawater desalination pipe 2, and the plunger pumps 3 are used for outputting desalinated water after desalination; the plunger pump 3 is provided with an irrigation assembly, the irrigation assembly comprises a main output pipe 4 connected with the plunger pump 3, and the main output pipe 4 is connected with a plurality of auxiliary output pipes 6 through a circular adapter 5 to form a well network structure; radial irrigation pipes 7 are arranged on the auxiliary output pipe 6 on one side far away from the circular connecting piece 5, each irrigation pipe 7 is respectively provided with an electromagnetic valve 8, each electromagnetic valve 8 is used for adjusting irrigation flow, the end part of each irrigation pipe 7 is respectively provided with a spray head 9, the auxiliary output pipe 6 is respectively provided with a timer, and the timer is used for recording and adjusting irrigation time; the controller passes through the driver and links to each other with plunger pump 3 and solenoid valve 8, the controller passes through the AD converter and links to each other with electric field sensor, the controller passes through power regulator and links to each other with photovoltaic power generation board 1, the timer links to each other with the controller.

The main output pipe 4 is provided with a backflow prevention assembly, and the backflow prevention assembly is used for preventing the backflow of the desalted water in the main output pipe 4; the backflow preventing assembly comprises a sleeve 10, a plurality of limiting plates 11 are symmetrically arranged in the sleeve 10, and the limiting plates 11 are respectively connected with the inner wall of the sleeve 10 through springs 12.

The number of the limiting plates 11 is 6-10, and a reference line 13 is arranged in the sleeve 10.

An active carbon filter screen 14 is arranged on the spray head 9 to reduce impurities in the desalted water, and a rotating shaft 15 is also arranged on the spray head 9 to drive the spray head 9 to rotate.

The photovoltaic drive-based seawater desalination vegetable irrigation device in the embodiment of the utility model has the working principle that: based on the integrated control principle of the single chip microcomputer controller, the irrigation flow and the irrigation time are automatically adjusted according to actual requirements by matching with corresponding mechanical structure components, so that the flexibility of vegetable irrigation is improved, and the control is convenient; meanwhile, the electric field intensity of the direct current electric field can be adjusted, the mineral content in the desalted water is prevented from being too low, the condition of vegetable growth is met, the operation steps are simplified, the production cost is reduced, and the direct current electric field irrigation device can be well suitable for irrigation of various vegetables.

In the whole scheme, a structural component part and an electrical component part are taken as main parts, the structural component part mainly comprises a plurality of photovoltaic power generation panels 1 and is used for providing a direct current electric field to desalt seawater in an electrodialysis mode, a seawater desalination tube 2 is respectively arranged between two adjacent photovoltaic power generation panels 1, and an output tube of each seawater desalination tube 2 is respectively provided with a plunger pump 3 and is used for outputting desalinated water after the desalination; the plunger pump 3 is provided with an irrigation assembly which comprises a main output pipe 4 connected with the plunger pump 3, and the main output pipe 4 is connected with a plurality of auxiliary output pipes 6 through a circular adapter 5 to form a well network structure; be equipped with radial irrigation pipe 7 on keeping away from the vice output tube 6 of circular connecting piece 5 one side, be equipped with solenoid valve 8 on every irrigation pipe 7 respectively for adjust irrigation flow, be equipped with shower nozzle 9 respectively at the tip of every irrigation pipe 7, according to staff's actual demand, adjust corresponding structure, thereby irrigate vegetables.

Preferably, the main output pipe 4 is provided with a backflow prevention assembly for preventing the backflow of the desalted water in the main output pipe 4; the backflow prevention assembly comprises a sleeve 10, a plurality of limiting plates 11 are symmetrically arranged in the sleeve 10, the limiting plates 11 are connected with the inner wall of the sleeve 10 through springs 12 respectively, under the clamping limiting effect of the symmetrical and uniformly arranged limiting plates 11, the stress balance of the outer end of the main output pipe 4 can be kept, reaction force can be provided, and the desalted water is prevented from flowing back in the main output pipe 4.

Preferably, the number of the limiting plates 11 is 6 to 10, the limiting plates can be suitable for main output pipes 4 with different lengths, and the main output pipes 4 can be kept in a horizontal position by matching with the reference lines 13 in the sleeve 10, so that the occurrence of direction deviation is prevented.

Preferably, be equipped with active carbon filter screen 14 on shower nozzle 9 to reduce the impurity of desalination aquatic, still be equipped with pivot 15 on shower nozzle 9, in order to drive shower nozzle 9 rotatory, can adjust the angle of shower nozzle 9, can irrigate to the special position of different types of vegetables, make shower nozzle 9 commonality stronger.

For the electric component part, including the controller, the model of controller is STM32F103C8T6, be equipped with 64 pins on the controller, the controller links to each other with the AD converter through the fifteen number pin, the controller links to each other with power regulator through the twenty number pin and No. twenty one pin, the controller links to each other with the time-recorder through thirty-three number pin, the controller links to each other with the driver through thirty-eight number pin and No. forty-five number pin, thereby constituted whole hardware circuit, and rely on above-mentioned whole hardware circuit to come automatic regulation irrigation flow and irrigation time according to actual demand, improve the flexibility that the vegetables were irrigated, can also promote the mineral content in the desalination water simultaneously, need not provide extra nutrient solution, reduce whole manufacturing cost.

Preferably, the type of the AD converter is AD8551, 8 pins are arranged on the AD converter, the AD converter is connected with the fifteenth pin of the controller through the sixth pin, and the AD converter is connected with the electric field sensor through the third pin, so that the dc electric field intensity of the photovoltaic power generation panel 1 is detected and converted into the data type recognizable by the controller.

Preferably, the type of the driver is ULN2003, 16 pins are arranged on the driver, a pin I of the driver is connected with a pin thirty-eight of the controller, a pin sixteen of the driver is connected with the first electromagnetic relay through the first diode and the fifth resistor, and the first electromagnetic relay is provided with a plunger pump interface; no. seven pins of driver link to each other with the forty-five pin of controller, link to each other with second electromagnetic relay through second diode and sixth resistance on the No. ten pin of driver, be equipped with the solenoid valve interface on second electromagnetic relay, can be fast accurate drive solenoid valve 8 and plunger pump 3's action, export the desalinated water, and can accurately adjust irrigation flow, because solenoid valve 8's quantity is more, so will carry out unified control drive with the driver, reduce the interference between the solenoid valve 8.

Preferably, the type of the timer is DS1302, 8 pins are arranged on the timer, a fourth capacitor and a fourth resistor which are connected in parallel are arranged on a pin six and a pin seven of the timer, the pin seven of the timer is connected with a pin thirty-three of the controller, the irrigation time can be recorded and adjusted, and the irrigation time is combined with the irrigation flow direction of the spray head 9 to ensure the overall irrigation quality of the vegetables.

During actual use, all the functional components in the technical scheme are assembled and electrically connected to form a plurality of photovoltaic power generation panels 1 for desalting seawater in an electrodialysis mode, and then the desalinated water is irrigated by matching with a well-mesh-shaped output pipeline, and the irrigation flow and the irrigation time of the spray head 9 are adjusted based on the functional effects of the plunger pump 3, the timer and the electromagnetic valve 8, so that the optimal effect of irrigation on vegetables is achieved; meanwhile, the mineral content in the desalted water can be increased, no additional nutrient solution is needed, the production cost is reduced, and the normal irrigation of the vegetables is facilitated.

In conclusion, the photovoltaic-drive-based seawater desalination vegetable irrigation device disclosed by the embodiment of the utility model is based on the integrated control principle of the single-chip microcomputer controller, is matched with the corresponding mechanical structure assembly, automatically adjusts the irrigation flow and the irrigation time according to the actual demand, improves the flexibility of vegetable irrigation, and is convenient to control; meanwhile, the electric field intensity of the direct current electric field can be adjusted, the mineral content in the desalted water is prevented from being too low, the condition of vegetable growth is met, the operation steps are simplified, the production cost is reduced, and the direct current electric field irrigation device can be well suitable for irrigation of various vegetables.

The above-described embodiments should not be construed as limiting the scope of the utility model, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.

The present invention is not described in detail, but is known to those skilled in the art.

Claims

1. Seawater desalination vegetables irrigation equipment based on photovoltaic drive, its characterized in that: the seawater desalination device comprises a plurality of photovoltaic power generation panels and a controller, wherein the photovoltaic power generation panels are used for providing a direct current electric field to desalinate seawater in an electrodialysis mode; the photovoltaic power generation panel is connected with an electric field sensor and a power regulator which are matched with each other to detect and regulate the direct current electric field intensity of the photovoltaic power generation panel; seawater desalination pipes are respectively arranged between two adjacent photovoltaic power generation plates, and a plunger pump is respectively arranged on an output pipe of each seawater desalination pipe and is used for outputting desalinated water after desalination; the plunger pump is provided with an irrigation assembly, the irrigation assembly comprises a main output pipe connected with the plunger pump, and the main output pipe is connected with a plurality of auxiliary output pipes through a circular adapter to form a well network structure; radial irrigation pipes are arranged on the auxiliary output pipe far away from one side of the circular connecting piece, each irrigation pipe is provided with an electromagnetic valve respectively, the electromagnetic valves are used for adjusting irrigation flow, the end part of each irrigation pipe is provided with a spray head respectively, the auxiliary output pipes are provided with timers respectively, and the timers are used for recording and adjusting irrigation time; the controller passes through the driver and links to each other with plunger pump and solenoid valve, the controller passes through AD converter and links to each other with electric field sensor, the controller passes through power conditioner and links to each other with photovoltaic power generation board, the timer links to each other with the controller.

2. The photovoltaic drive-based seawater desalination vegetable irrigation apparatus as claimed in claim 1, wherein: the main output pipe is provided with a backflow preventing assembly, and the backflow preventing assembly is used for preventing the desalted water in the main output pipe from flowing back; the backflow preventing assembly comprises a sleeve, a plurality of limiting plates are symmetrically arranged in the sleeve, and the limiting plates are connected with the inner wall of the sleeve through springs respectively.

3. The photovoltaic drive-based seawater desalination vegetable irrigation apparatus as claimed in claim 2, wherein: the number of the limiting plates is 6-10, and a reference line is arranged in the sleeve.

4. The photovoltaic drive-based seawater desalination vegetable irrigation apparatus as claimed in claim 1, wherein: the spray head is provided with an active carbon filter screen to reduce impurities in the desalted water, and is also provided with a rotating shaft to drive the spray head to rotate.

5. The photovoltaic drive-based seawater desalination vegetable irrigation apparatus as claimed in claim 1, wherein: the model of controller is STM32F103C8T6, is equipped with 64 pins on the controller, the controller links to each other with the AD converter through fifteen numbers pin, the controller links to each other with power regulator through twenty numbers pin and twenty-one number pin, the controller links to each other with the time-recorder through thirty-three number pin, the controller links to each other with the driver through thirty-eight number pin and forty-five number pin.

6. The device for irrigating sea water desalinated vegetables according to claim 5, wherein: the model of AD converter is AD8551, is equipped with 8 pins on the AD converter, the AD converter links to each other through No. six pins and No. fifteen pins of controller, the AD converter links to each other with electric field sensor through No. three pins.

7. The device for irrigating sea water desalinated vegetables according to claim 5, wherein: the driver is in a ULN2003 model, 16 pins are arranged on the driver, a pin I of the driver is connected with a pin thirty-eight of the controller, a pin sixteen of the driver is connected with the first electromagnetic relay through the first diode and the fifth resistor, and the first electromagnetic relay is provided with a plunger pump interface; and a seventh pin of the driver is connected with a forty-five pin of the controller, a tenth pin of the driver is connected with a second electromagnetic relay through a second diode and a sixth resistor, and the second electromagnetic relay is provided with an electromagnetic valve interface.

8. The device for irrigating sea water desalinated vegetables according to claim 5, wherein: the type of the timer is DS1302, 8 pins are arranged on the timer, a fourth capacitor and a fourth resistor which are connected in parallel are arranged on a pin six and a pin seven of the timer, and the pin seven of the timer is connected with a pin thirty-three of the controller.