Aeroponic planting system and aeroponic planting method

Abstract

The embodiment of the present invention provides a fog cultivation system and a fog cultivation method, the system includes a spray pipeline, an air pump, an ozone generator, a mixer and a booster pump, the air pump, the ozone generator, the mixer and the spray pipeline are connected in sequence through a pipeline, a first check valve is provided on the pipeline between the mixer and the ozone generator, a water inlet is provided on the mixer, a first stop valve is provided on the pipeline connected to the water inlet, a second stop valve is provided on the pipeline between the mixer and the spray pipeline, the water inlet end of the booster pump is connected to the mixer, and the water outlet end of the booster pump is connected to the spray pipeline. The fog cultivation system provided by the embodiment of the present invention realizes the oxygenation and disinfection of the water source, and oxygenates and disinfects the plant root system and the spray space while supplying water to the plants, improves the growth environment of the plant root system, promotes the absorption of nutrients by the plant root system, and reduces the breeding of pathogens and viruses.

Description

Technical Field

[0001] The invention relates to the technical field of plant aeroponics, and in particular to an aeroponics planting system and an aeroponics planting method. Background Art

[0002] With the development of agricultural science and technology, fog cultivation is considered to be an advanced soilless cultivation model because of its potential yield and quality advantages that soil cultivation and ordinary hydroponics do not have, and its technical advantages such as short production cycle, less pollution, significant increase in the number of plantings per unit area, promotion of plant growth potential, and convenience for precise control and observation of plant roots. It is more practical, efficient and popular than conventional soilless cultivation. It is an important way to achieve high yield, high quality and high efficiency in agriculture, and is in line with the future direction of agricultural production development.

[0003] Figure 1 This is a schematic diagram of the structure of the aeroponic planting system in the prior art. Figure 1 As shown, it includes a booster pump 204, a fertilizer tank 209, a fertilizer applicator 210 and a spray pipeline 205. A solenoid valve 101 is provided on the pipeline connected to the water inlet end of the booster pump 204 and the pipeline between the booster pump 204 and the fertilizer tank 209, and a check valve 102 is provided between the fertilizer tank 209 and the fertilizer applicator 210. The roots of the plants grown in this aeroponic culture grow completely in an atomized nutrient solution environment. Water and nutrients are mixed by the fertilizer applicator 210, pressurized by the booster pump 204, and materialized into small droplets through the spray pipeline 205 and the micro-mist nozzle, and intermittently sprayed into the spray space 103 of the aeroponic planting facility where the plant roots are located, so as to provide the water and nutrients required for plant growth.

[0004] However, due to the poor quality of the water supply, harmful substances will enter the spray space of the mist cultivation facilities or directly attach to the roots of plants. At the same time, the roots of the plants grown in the mist cultivation facilities are exposed in the spray space. In order to prevent the spray liquid from spraying out, the spray facilities are usually fully enclosed, resulting in an unstable growth environment for the plant roots, which can easily cause plant root necrosis, affect the normal growth of the plants and the absorption of nutrients, and lead to reduced production. Summary of the invention

[0005] The present invention provides an aerosol cultivation system and an aerosol cultivation method to solve the problem that the plant root growth environment is unstable in the existing aerosol cultivation technology, which easily causes plant root necrosis and affects the normal growth of the plant and the absorption of nutrients.

[0006] In a first aspect, an embodiment of the present invention provides an aeroponic planting system, comprising a spray pipeline, an air pump, an ozone generator, a mixer and a booster pump, wherein the air pump, the ozone generator, the mixer and the spray pipeline are connected in sequence through a pipeline, a first check valve is arranged on the pipeline between the mixer and the ozone generator, a water inlet is arranged on the mixer, a first stop valve is arranged on the pipeline connected to the water inlet, a second stop valve is arranged on the pipeline between the mixer and the spray pipeline, a water inlet end of the booster pump is connected to the mixer, and a water outlet end of the booster pump is connected to the spray pipeline.

[0007] Optionally, the aeroponic planting system also includes a fertilizer tank and a fertilizer applicator, the outlet end of the fertilizer applicator is connected to the spray pipeline, the liquid inlet end of the fertilizer tank is connected to the water outlet end of the booster pump through a third stop valve, and the liquid outlet end of the fertilizer tank is connected to the inlet end of the fertilizer applicator through a second check valve.

[0008] Optionally, the aeroponic planting system also includes a fertilizer tank, a three-way valve and a fertilizer applicator, the outlet end of the fertilizer applicator is connected to the spray pipeline, the inlet end of the three-way valve is connected to the water outlet end of the booster pump, the first outlet of the three-way valve is connected to the spray pipeline, the liquid inlet end of the fertilizer tank is connected to the second outlet end of the three-way valve, and the liquid outlet end of the fertilizer tank is connected to the inlet end of the fertilizer applicator through a second check valve.

[0009] Optionally, the aeroponic planting system further includes a monitoring controller and an oxygen sensor. The monitoring controller is communicatively connected with the air pump, the ozone generator and the oxygen sensor. The oxygen sensor is arranged in the spray space.

[0010] Optionally, the aeroponic planting system further includes an ozone sensor disposed in the spray space, and the ozone sensor is communicatively connected to the monitoring controller.

[0011] Optionally, the first stop valve, the second stop valve and the first check valve are all electromagnetic control valves, and are respectively communicatively connected to the monitoring controller.

[0012] Optionally, a flow meter is installed at the water inlet of the boost pump, and the flow meter is communicatively connected with the monitoring controller.

[0013] Optionally, the aeroponic planting system further includes a humidity sensor, which is disposed in the spray space, and the first stop valve is opened and closed according to humidity data collected by the humidity sensor.

[0014] In a second aspect, an embodiment of the present invention provides an aeroponic planting method using the aeroponic planting system described in the first aspect, wherein the aeroponic planting method is used to implement at least one of an oxygenation mode, a disinfection mode, a water supply mode, a water supply oxygenation mode, and a water supply disinfection mode of the aeroponic planting system; wherein:

[0015] The oxygen enrichment mode: opening the air pump, the first check valve and the second stop valve, and closing the first stop valve and the ozone generator;

[0016] The disinfection mode: turning on the air pump, the ozone generator, the first check valve and the second stop valve, and closing the first stop valve;

[0017] The water supply mode: open the first stop valve and the booster pump, and close the air pump, the ozone generator and the second stop valve;

[0018] The water supply oxygenation mode: opening the first stop valve, the air pump, the mixer, the booster pump and the first check valve, and closing the ozone generator and the second stop valve;

[0019] The water supply disinfection mode: open the first stop valve, air pump, ozone generator, mixer, booster pump and first check valve, and close the second stop valve.

[0020] The mist cultivation system provided by the embodiment of the present invention pumps air into the system pipeline through an air pump, or delivers the ozone mixed gas generated by the ozone generator to the system pipeline. On the one hand, when the first stop valve is closed, the air or ozone mixed gas is delivered to the spray space where the plant roots are located to achieve oxygenation or disinfection of the spray space; on the other hand, when the first stop valve is open, the water mixed with the air or ozone mixed gas in the mixer is delivered to the spray space where the plant roots are located through the booster pump. Oxygenation and disinfection of the water source are achieved, and oxygenation and disinfection of the plant roots and the spray space are performed while supplying water to the plants, thereby improving the growth environment of the plant roots, promoting the absorption of nutrients by the plant roots, reducing the growth of plant root pathogens and viruses, and helping to increase crop yields. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the aeroponic planting system in the prior art;

[0023] Figure 2 This is a schematic diagram of the structure of the aeroponic planting system according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of an aeroponic planting system according to another embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of an aeroponic planting system according to yet another embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 101, solenoid valve; 102, check valve; 103, spray space; 201, air pump; 202, ozone generator; 203, mixer; 204, booster pump; 205, spray pipeline; 206, first check valve; 207, first stop valve; 208, second stop valve; 209, fertilizer tank; 210, fertilizer applicator; 211, third stop valve; 212, second check valve; 213, three-way valve; 214, monitoring controller; 215, oxygen sensor; 216, ozone sensor. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Figure 2 Schematic diagram of the structure of the aeroponic planting system according to an embodiment of the present invention. Figure 2 As shown, the aeroponic planting system includes an air pump 201, an ozone generator 202, a mixer 203, a booster pump 204 and a spray pipeline 205. The air pump 201, the ozone generator 202, the mixer 203 and the spray pipeline 205 are connected in sequence through pipelines. A first check valve 206 is provided on the pipeline between the mixer 203 and the ozone generator 202. A water inlet is provided on the mixer 203. A first stop valve 207 is provided on the pipeline connected to the water inlet. A second stop valve 208 is provided on the pipeline between the mixer 203 and the spray pipeline 205. The water inlet end of the booster pump 204 is connected to the mixer 203, and the water outlet end of the booster pump 204 is connected to the spray pipeline 205.

[0030] The technical solution of this embodiment is described below in conjunction with the specific method of using the aeroponic planting system:

[0031] Specifically, when the first stop valve 207 is in a closed state, the aeroponic planting system has two working modes, namely, an oxygenation mode and a disinfection mode.

[0032] In the oxygenation mode, the air pump 201, the first check valve 206 and the second stop valve 208 are turned on, and the ozone generator 202 is turned off. The air pump 201 pumps air into the pipeline, and the air flows directly through the ozone generator 202 without any treatment. Then the air passes through the first check valve 206, the mixer 203 and the second stop valve 208 in sequence and enters the spray pipeline 205, and the external air is transported to the spray space through the spray pipeline 205. The oxygen content in the spray space is increased, the oxygenation of the plants in the spray space is achieved, the growth environment of the plant roots is improved, the necrosis of the plant roots is reduced, and it is beneficial to promote the absorption of nutrients by the plant roots.

[0033] In the disinfection mode, the air pump 201, the ozone generator 202, the first check valve 206 and the second stop valve 208 are turned on, and the air pump 201 pumps air into the pipeline. After the air enters the ozone generator 202, ozone gas is generated under the action of the ozone generator 202. Since the gas generated by the ozone generator 202 is a mixed gas containing ozone, the product of the concentration of ozone in the mixed gas and the total amount of air entering the ozone generator 202 is the ozone output of the ozone generator 202, and the specification model of the ozone generator 202 is represented by the ozone output, so the corresponding ozone generator 202 model can be selected according to actual needs. The mixed gas enters the spray pipeline 205 through the first check valve 206, the mixer 203 and the second stop valve 208 in turn, and the ozone mixed gas is transported to the spray space through the spray pipeline 205. The disinfection of the spray space and the plant root system is achieved, the breeding of bacteria and viruses in the spray space is reduced, and the growth environment of the plant root system is improved. In addition, since the mixed gas also contains some oxygen, the oxygen content in the spray space can be increased at the same time, reducing the necrosis rate of plant roots in the closed spray space, which is beneficial to promoting the absorption of nutrients by plant roots.

[0034] Specifically, when the first stop valve 207 is in an open state, the aeroponic planting system has three working modes, namely, a water supply mode, a water supply and oxygenation mode, and a water supply and disinfection mode.

[0035] In the water supply mode, the booster pump 204 is turned on, and the air pump 201, the ozone generator 202 and the second stop valve 208 are turned off. Water passes through the first stop valve 207 and the mixer 203, and under the action of the booster pump 204, enters the spray space through the spray pipe 205 to achieve water supply to the plant roots.

[0036] In the water supply and oxygenation mode, the air pump 201, the mixer 203, the booster pump 204 and the first check valve 206 are turned on, and the ozone generator 202 and the second stop valve 208 are turned off. The air pump 201 pumps air into the pipeline, and the air flows directly from the ozone generator 202 without any treatment. After that, the air passes through the first check valve 206 in turn and enters the mixer 203, and mixes with the water entering the mixer 203 through the first stop valve 207. After being fully mixed, the air is partially dissolved in water, and most of it exists in the water in the form of microbubbles. Under the action of the booster pump 204, the water is transported to the spray space through the spray pipeline 205, and the air bubbles in the water are released into the spray space, so as to realize the supply of water to the plant root system and the spray space, and increase the oxygen content on the surface of the plant root system and the spray space. The necrosis rate of the plant root system in the closed spray space is reduced, and the absorption of water and other nutrients by the plant root system is promoted.

[0037] In the water supply disinfection mode, the air pump 201, the ozone generator 202, the mixer 203, the booster pump 204 and the first check valve 206 are turned on, and the second stop valve 208 is closed. The air pump 201 pumps air into the pipeline, and after the air enters the ozone generator 202, an ozone mixed gas is generated under the action of the ozone generator 202. The ozone mixed gas enters the mixer 203 through the first check valve 206 in turn, and mixes with the water entering the mixer 203 through the first stop valve 207. After being fully mixed, the ozone disinfects the water source. Under the action of the booster pump 204, the disinfected water is transported to the spray space through the spray pipeline 205. Not only does it avoid that harmful substances such as bacteria and viruses are brought into the spray space and the plant roots due to water quality problems when supplying water to the plant roots, but it can also disinfect the spray space and the plant roots, thereby improving the growth environment of the plant roots. At the same time, since the mixed gas also contains some oxygen, it can also play a role in increasing the oxygen of the spray space.

[0038] The aeroponic planting system provided in the embodiment of the present invention pumps air into the system pipeline through the air pump 201, or delivers the ozone mixed gas generated by the ozone generator 202 to the system pipeline. On the one hand, when the first stop valve 207 is closed, the air or ozone mixed gas is delivered to the aeroponic space where the plant roots are located, thereby achieving oxygenation or disinfection of the aeroponic space; on the other hand, when the first stop valve 207 is open, the water mixed with the air or ozone mixed gas in the mixer 203 is delivered to the spray space where the plant roots are located through the booster pump 204. The growth environment of the plant roots is improved, and oxygenation or disinfection of the plant roots or the spray space is achieved while supplying water to the plants, thereby promoting the absorption of nutrients by the plant roots, reducing the growth of pathogens and viruses in the plant roots, and facilitating the increase of crop yields.

[0039] Optionally, the mixer 203 is an ejector to achieve a strong mixed injection of water flow and air or ozone gas, so that the water source and air or ozone gas are mixed evenly and completely, the dissolution efficiency of the ozone gas is improved, thereby improving the disinfection efficiency of the water, and the bubbles generated are numerous and fine, which can effectively bring air into the spray space.

[0040] Figure 3 FIG. 1 is a schematic diagram of the structure of an aeroponic planting system according to another embodiment of the present invention. Figure 3 As shown, in one embodiment of the present invention, the aeroponic aeroponic planting system further includes a fertilizer tank 209 and a fertilizer applicator 210. The outlet end of the fertilizer applicator 210 is connected to the spray pipeline 205, the liquid inlet end of the fertilizer tank 209 is connected to the water outlet end of the booster pump 204 through the third stop valve 211, and the liquid outlet end of the fertilizer tank 209 is connected to the inlet end of the fertilizer applicator 210 through the second check valve 212. Figure 2 The aeroponic planting system shown in the figure is provided with a fertilizer passage, which is controlled by controlling the switch state of the third stop valve 211 to meet the needs of the plants. The technical solution of this embodiment is described below in conjunction with the specific use method of the aeroponic planting system:

[0041] Specifically, when the first stop valve 207 is in a closed state, the aeroponic planting system has two working modes, namely, an oxygenation mode and a disinfection mode. The specific operation methods of the systems in these two modes can be referred to the above embodiments and will not be repeated here.

[0042] Specifically, when the first stop valve 207 is in an open state, the aeroponic planting system has six working modes, namely, water supply mode, water supply and oxygenation mode, water supply and disinfection mode, fertilizer supply mode, fertilizer supply and oxygenation mode and fertilizer supply and disinfection mode.

[0043] Among them, in one embodiment of the present invention, by closing the third stop valve 211, the water coming out of the mixer 203 is directly transported to the spray space by the spray pipeline 205 under the action of the booster pump 204, thereby realizing the water supply mode, water supply oxygenation mode or water supply disinfection mode.

[0044] In the fertilizer supply mode, the booster pump 204 and the third stop valve 211 are turned on, and the air pump 201, the ozone generator 202 and the second stop valve 208 are turned off. The water passes through the first stop valve 207 and the mixer 203. Under the action of the booster pump 204, part of the water enters the fertilizer tank 209 through the third stop valve 211, and is mixed with the fertilizer in the fertilizer tank 209 to form a nutrient solution. The nutrient solution then passes through the second check valve 212 and the fertilizer applicator 210 and enters the spray line 205, and enters the spray space through the spray line 205 to achieve fertilization of the plant root system; another part of the water directly enters the fertilizer applicator 210 and is discharged through the spray line 205 connected to the fertilizer applicator 210.

[0045] In the fertilizer supply and oxygenation mode, the air pump 201, the mixer 203, the booster pump 204, the first check valve 206, the second check valve 212 and the third stop valve 211 are turned on, and the ozone generator 202 and the second stop valve 208 are turned off. The air pump 201 pumps air into the pipeline, and the air directly flows through the ozone generator 202 without any treatment, and then enters the mixer 203 through the first check valve 206 in turn, and mixes with the water entering the mixer 203 through the first stop valve 207. After sufficient mixing, part of the air dissolves in the water, and most of it exists in the water in the form of microbubbles. Under the action of the booster pump 204, part of the water enters the fertilizer tank 209 through the third stop valve 211, and is mixed with the fertilizer in the fertilizer tank 209 to form a nutrient solution. At this time, the air still mainly exists in the nutrient solution in the form of microbubbles. The nutrient solution then enters the spray pipeline 205 through the second check valve 212 and the fertilizer applicator 210 and is transported to the spray space; another part of the water directly enters the fertilizer applicator 210 and is discharged through the spray pipeline 205 connected to the fertilizer applicator 210. The air bubbles in the nutrient solution are released into the spray space, which not only provides fertilizer to the plant roots, but also increases the oxygen content in the spray space, reduces the necrosis rate of the plant roots in the closed spray space, and promotes the absorption of the nutrient solution by the plant roots.

[0046] In the fertilizer supply and disinfection mode, the air pump 201, the ozone generator 202, the mixer 203, the booster pump 204, the first check valve 206 and the third stop valve 211 are turned on, and the second stop valve 208 is closed. The air pump 201 pumps air into the pipeline, and after the air enters the ozone generator 202, an ozone mixed gas is generated under the action of the ozone generator 202. The ozone mixed gas enters the mixer 203 through the first check valve 206 in turn, and mixes with the water that enters the mixer 203 through the first stop valve 207. After being fully mixed, the ozone disinfects the water source. Under the action of the booster pump 204, part of the water enters the fertilizer tank 209 through the third stop valve 211, and is mixed with the fertilizer in the fertilizer tank 209 to form a nutrient solution, which then enters the spray pipeline 205 through the second check valve 212 and the fertilizer applicator 210 in turn, and is transported to the spray space; another part of the water directly enters the fertilizer applicator 210, and is discharged through the spray pipeline 205 connected to the fertilizer applicator 210. Not only does it avoid harmful substances such as bacteria and viruses from being brought into the spray space and plant roots due to water quality problems when fertilizing the plant roots, but it can also disinfect the fertilizer, spray space and plant roots, thereby improving the growth environment of the plant roots. At the same time, since the mixed gas also contains some oxygen, it can also play an oxygenating role in the spray space.

[0047] In one embodiment of the present invention, the inlet end of the fertilizer applicator 210 is connected to the second check valve and can also be connected to the air outlet end of the second stop valve 208 and / or the water outlet end of the booster pump 204. At this time, oxygen, ozone or water passes through the fertilizer applicator 210 and is sprayed into the spray space through the spray pipeline 205.

[0048] The mist cultivation system provided by the embodiment of the present invention pumps air into the system pipeline through the air pump 201, or delivers the ozone mixed gas generated by the ozone generator 202 to the system pipeline. On the one hand, when the first stop valve 207 is closed, the air or ozone mixed gas is delivered to the mist cultivation space where the plant roots are located; on the other hand, when the first stop valve 207 is opened, the water mixed with the air or ozone mixed gas is delivered to the spray space where the plant roots are located, or the water mixed with the air or ozone mixed gas is mixed with fertilizer, and then the mixed nutrient solution is delivered to the spray space where the plant roots are located. Not only is the spray space oxygenated or disinfected separately, but also the plant roots or spray space are oxygenated or disinfected while water or fertilizer is supplied to the plants, thereby improving the growth environment of the plant roots and promoting the absorption of nutrients by the plant roots. The disinfected water or nutrient solution also reduces the growth of plant root pathogens and viruses, which is beneficial to increasing crop yields.

[0049] Figure 4 FIG. 1 is a schematic diagram of the structure of an aeroponic planting system according to another embodiment of the present invention. Figure 4 As shown, in one embodiment of the present invention, the aeroponic planting system further includes a fertilizer tank 209, a three-way valve 213 and a fertilizer applicator 210, the outlet end of the fertilizer applicator 210 is connected to the spray line 205, the inlet end of the three-way valve 213 is connected to the water outlet end of the booster pump 204, the first outlet end of the three-way valve 213 is connected to the spray line 205, the liquid inlet end of the fertilizer tank 209 is connected to the second outlet end of the three-way valve 213, and the outlet end of the fertilizer tank 209 is connected to the inlet end of the fertilizer applicator 210 through the second check valve 212. Figure 2 A fertilizer passage is added to the aeroponic planting system shown, and the fertilizer demand of the plants is met by controlling the switch state of the three-way valve 213 to control the fertilizer passage.

[0050] The technical solution of this embodiment is described below in conjunction with the specific method of using the aeroponic planting system:

[0051] Specifically, when the first stop valve 207 is in the closed state, the aeroponic planting system has two working modes, namely, the oxygenation mode and the disinfection mode, as in the above embodiment. The specific operation modes of the two modes of the system can be referred to the above embodiment, which will not be repeated here.

[0052] Specifically, when the first stop valve 207 is in an open state, the aeroponic planting system has six working modes, namely, water supply mode, water supply and oxygenation mode, water supply and disinfection mode, fertilizer supply mode, fertilizer supply and oxygenation mode and fertilizer supply and disinfection mode.

[0053] Among them, in one embodiment of the present invention, by adjusting the internal valve core of the three-way valve 213, the first outlet of the three-way valve 213 is opened, and the water coming out of the mixer 203 is transported to the spray space by the spray pipeline 205 through the three-way valve 213, thereby realizing the water supply mode, water supply oxygenation mode and water supply disinfection mode.

[0054] In the fertilizer supply mode, the booster pump 204 is turned on, the air pump 201, the ozone generator 202 and the second stop valve 208 are turned off, and the internal valve core of the three-way valve 213 is adjusted to make the second outlet of the three-way valve 213 conductive, so that the booster pump 204 is connected with the fertilizer tank 209. Water passes through the first stop valve 207 and the mixer 203, and under the action of the booster pump 204, all the water flows out from the second outlet of the three-way valve 213 and enters the fertilizer tank 209, and mixes with the fertilizer in the fertilizer tank 209 to form a nutrient solution, which then passes through the second check valve 212 and the fertilizer applicator 210 into the spray pipeline 205, and enters the spray space through the spray pipeline 205 to achieve fertilization of the plant root system.

[0055] In the fertilizer supply and oxygenation mode, the air pump 201, the mixer 203, the booster pump 204, the first check valve 206 and the second check valve 212 are turned on, the ozone generator 202 and the second stop valve 208 are turned off, and the internal valve core of the three-way valve 213 is adjusted to make the second outlet of the three-way valve 213 conductive, so that the booster pump 204 is connected to the fertilizer tank 209. The air pump 201 pumps air into the pipeline, and the air flows through the ozone generator 202 without any treatment, and then passes through the first check valve 206 in turn into the mixer 203, and mixes with the water entering the mixer 203 through the first stop valve 207. After being fully mixed, the air is partially dissolved in the water, and most of it exists in the water in the form of microbubbles. Under the action of the booster pump 204, all the water flows out from the second outlet of the three-way valve 213 and enters the fertilizer tank 209, where it is mixed with the fertilizer in the fertilizer tank 209 to form a nutrient solution. At this time, the air still mainly exists in the nutrient solution in the form of microbubbles. The nutrient solution then passes through the second check valve 212 and the fertilizer applicator 210 and enters the spray pipeline 205, where it is transported to the spray space, and the air bubbles in the nutrient solution are released into the spray space. While providing fertilizer to the plant roots, the oxygen content in the spray space is increased, the necrosis rate of the plant roots in the closed spray space is reduced, and the absorption of the nutrient solution by the plant roots can be promoted.

[0056] In the fertilizer supply and disinfection mode, the air pump 201, the ozone generator 202, the mixer 203, the booster pump 204, the first check valve 206 and the second check valve 212 are turned on, the second stop valve 208 is closed, and the internal valve core of the three-way valve 213 is adjusted to make the second outlet of the three-way valve 213 conductive, so that the booster pump 204 is connected to the fertilizer tank 209. The air pump 201 pumps air into the pipeline, and after the air enters the ozone generator 202, an ozone mixed gas is generated under the action of the ozone generator 202. The ozone mixed gas enters the mixer 203 through the first check valve 206 in turn, and mixes with the water entering the mixer 203 through the first stop valve 207. After being fully mixed, the ozone disinfects the water source. Under the action of the booster pump 204, all the disinfected water flows out through the second outlet of the three-way valve 213 and enters the fertilizer tank 209, where it is mixed with the fertilizer in the fertilizer tank 209 to form a nutrient solution, which then passes through the second check valve 212 and the fertilizer applicator 210 to enter the spray pipeline 205 and is transported to the spray space. This not only avoids the introduction of harmful substances such as germs and viruses into the spray space and plant roots due to water quality problems when fertilizing the plant roots, but also can disinfect the spray space and plant roots, thereby improving the growth environment of the plant roots. At the same time, since the mixed gas also contains some oxygen, it can also play an oxygenation role in the spray space.

[0057] In one embodiment of the present invention, the inlet end of the fertilizer applicator 210 is connected to the second check valve and can also be connected to the air outlet end of the second stop valve 208 and / or the water outlet end of the booster pump 204. At this time, oxygen, ozone or water passes through the fertilizer applicator 210 and is sprayed into the spray space through the spray pipeline 205.

[0058] When the system is in the fertilizer supply mode, fertilizer supply and oxygenation mode, and fertilizer supply and disinfection mode, the three-way valve 213 can allow all the water from the booster pump 204 to pass through the fertilizer tank 209. A metering device can be set at the water inlet end of the mixer 203 and the feed port of the fertilizer tank 209 to achieve a quantitative ratio of water and fertilizer.

[0059] The mist cultivation system provided by the embodiment of the present invention pumps air into the system pipeline through the air pump 201, or delivers the ozone mixed gas generated by the ozone generator 202 to the system pipeline. On the one hand, when the first stop valve 207 is closed, the air or ozone mixed gas is delivered to the mist cultivation space where the plant roots are located; on the other hand, when the first stop valve 207 is opened, the water mixed with the air or ozone mixed gas is delivered to the spray space where the plant roots are located, or the water mixed with the air or ozone mixed gas is mixed with fertilizer, and then the mixed nutrient solution is delivered to the spray space where the plant roots are located. Not only is the spray space oxygenated or disinfected separately, but also the plant roots or the spray space are oxygenated or disinfected while water or fertilizer is supplied to the plants, thereby improving the growth environment of the plant roots and promoting the absorption of nutrients by the plant roots. The nutrient solution configured with disinfected water also reduces the growth of plant root pathogens and viruses, which is beneficial to increasing crop yields.

[0060] Based on the above embodiments, Figure 2-4 As shown, the aeroponic planting system further includes a monitoring controller 214 and an oxygen sensor 215. The monitoring controller 214 is in communication connection with the air pump 201, the ozone generator 202 and the oxygen sensor 215. The oxygen sensor 215 is disposed in the spray space.

[0061] Specifically, the monitoring controller 214 sets the oxygen content threshold in the spray space, and the oxygen sensor 215 collects the oxygen content data in the spray space and sends it to the monitoring controller 214. If the collected oxygen content is lower than the oxygen content threshold, the monitoring controller 214 controls the air pump 201 to turn on and the ozone generator 202 to turn off, thereby providing oxygen to the spray space. When the oxygen content in the spray space reaches the set oxygen content threshold, the air pump 201 is turned off to stop oxygenation. In addition, at this time, the water supply and oxygenation mode or the fertilizer supply and oxygenation mode in the above embodiment can also be executed according to the lack of water or fertilizer.

[0062] The embodiment of the present invention monitors the oxygen content in the spray space in real time through the oxygen sensor 215. In actual production, the spray space or the plant root system can be rationally oxygenated according to the objective needs of aeroponic cultivation. The monitoring controller 214 is used to control the oxygen content in the spray space to be maintained within a preset range, thereby ensuring the stable absorption of nutrients by the plant root system, improving the stability of the plant root system environment in aeroponic cultivation, and facilitating the increase of crop yields.

[0063] Based on the above embodiments, Figure 2-4 As shown, the aeroponic planting system further includes an ozone sensor 216 disposed in the spray space, and the ozone sensor 216 is communicatively connected with the monitoring controller 214 .

[0064] Specifically, the monitoring controller 214 sets an ozone content threshold in the spray space, and the ozone sensor 216 collects ozone content data in the spray space and sends it to the monitoring controller 214. If the collected ozone content is lower than the ozone content threshold, the monitoring controller 214 controls the air pump 201 and the ozone generator 202 to start, thereby executing the disinfection mode in the above embodiment.

[0065] The embodiment of the present invention monitors the ozone gas content in the spray space in real time through the ozone sensor 216. In actual production, the spray space can be reasonably disinfected according to the objective needs of the plants. The monitoring controller 214 is used to control the ozone gas content in the spray space to be kept within a preset range, thereby preventing the growth of bacteria and viruses in the spray space and on the plant roots, further improving the stability of the plant root environment in aeroponic planting, and helping to increase crop yields.

[0066] On the basis of the above embodiment, the first stop valve 207 , the second stop valve 208 and the first check valve are all electromagnetic control valves, and are in communication connection with the monitoring controller 214 .

[0067] Preferably, the third stop valve 211 , the second check valve 212 and the three-way valve 213 are all electromagnetic control valves, and are in communication connection with the monitoring controller 214 , so that the opening and closing of all valves in the system can be controlled by the monitoring controller 214 .

[0068] Preferably, the mixer 203, the booster pump 204, the fertilizer tank 209, and the fertilizer applicator 210 are all in communication connection with the monitoring controller 214. The monitoring controller can be used to control the opening and closing of all devices in the system, thereby achieving complete automatic control.

[0069] On the basis of the above embodiment, a flow meter is installed at the water inlet of the booster pump 204, and the flow meter is in communication connection with the monitoring controller 214. The flow meter is used to measure the amount of water entering the pipeline.

[0070] Specifically, the monitoring controller 214 controls the switch of the first stop valve 207 according to the water volume detected by the flow meter. In actual production, the water supply mode or fertilizer supply mode in the above embodiment can be executed according to the objective needs of aeroponic planting. When the water flow rate measured by the flow meter reaches the flow rate that needs to be increased, the first stop valve 207 is controlled to close and stop water intake.

[0071] On the basis of the above embodiment, the aeroponic planting system further includes a master controller, which is connected to the monitoring controller 214, the mixer 203, the booster pump 204, the fertilizer tank 209 and the fertilizer applicator 210. The master controller controls the mixer 203, the booster pump 204, the fertilizer tank 209 and the fertilizer applicator 210 to be turned on and off, and controls the monitoring controller 214 to send control instructions, so that the monitoring controller 214 executes various working modes in the above embodiment. The master controller can be a remote control terminal for real-time monitoring and control of the operation of the entire aeroponic planting system.

[0072] Based on the above embodiment, the aeroponic planting system also includes a display, which is communicatively connected to the main controller and is used to display the oxygen content data and ozone content data collected by the oxygen sensor 215 and the ozone sensor 216, as well as to display the working status of each working equipment and each valve in the entire aeroponic planting system, so as to facilitate the overall monitoring and control of the aeroponic planting system.

[0073] On the basis of the above embodiment, the aeroponic planting system further includes a humidity sensor, which is arranged in the spray space, and the humidity sensor is in communication connection with the monitoring controller 214. When the humidity of the spray space measured by the humidity sensor is lower than the humidity value preset by the monitoring controller, the amount of water to be added is calculated, and the first stop valve 207 is controlled to be opened, and the water flow entering the mixer 203 is controlled by the first stop valve 207. The amount of water for sprinkler irrigation is measured by a flow meter. In actual production, the water supply mode, water supply oxygenation mode or water supply disinfection mode in the above embodiment can be executed according to the objective needs of the plants, so as to realize real-time monitoring of the humidity of the spray space, and control the humidity of the spray space to remain within a stable range, thereby further improving the stability of the root environment; different humidity value thresholds can also be set according to the requirements of different plants for environmental humidity, so as to form a humidity environment suitable for the growth of specific plants.

[0074] The embodiment of the present invention further provides an aeroponic planting method, which is used to implement at least one of the oxygenation mode, disinfection mode, water supply mode, water supply oxygenation mode, and water supply disinfection mode of the aeroponic planting system in the above embodiment; wherein,

[0075] Oxygen enrichment mode: open the air pump 201, the first check valve 206 and the second stop valve 208, and close the first stop valve 207 and the ozone generator 202.

[0076] Disinfection mode: turn on the air pump 201 , the ozone generator 202 , the first check valve 206 and the second stop valve 208 , and close the first stop valve 207 .

[0077] Water supply mode: turn on the booster pump 204, and turn off the air pump 201, the ozone generator 202 and the second stop valve 208.

[0078] Water supply oxygenation mode: open the first stop valve 207, the air pump 201, the mixer 203, the booster pump 204 and the first check valve 206, and close the ozone generator 202 and the second stop valve 208.

[0079] Water supply disinfection mode: open the first stop valve 207, the air pump 201, the ozone generator 202, the mixer 203, the booster pump 204 and the first check valve 206, and close the second stop valve 208.

[0080] In one embodiment of the present invention, the oxygenation, disinfection, water supply, water supply oxygenation and water supply disinfection modes can also be achieved by closing the third stop valve 211.

[0081] In one embodiment of the present invention, the fertilizer supply, fertilizer oxygenation and fertilizer disinfection modes can also be realized by opening the third stop valve 211.

[0082] In one embodiment of the present invention, the oxygenation, disinfection, water supply, water supply oxygenation and water supply disinfection modes can also be realized by adjusting the inlet and the first outlet of the three-way valve 213 to be connected.

[0083] In one embodiment of the present invention, the fertilizer supply, fertilizer oxygenation and fertilizer disinfection modes can be realized by adjusting the connection between the inlet and the second outlet of the three-way valve 213.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aeroponic planting system, comprising a spray pipeline, characterized in that: Also includes: An air pump, an ozone generator, a mixer and a booster pump, wherein the air pump, the ozone generator, the mixer and the spray pipeline are connected in sequence through a pipeline, a first check valve is provided on the pipeline between the mixer and the ozone generator, a water inlet is provided on the mixer, a first stop valve is provided on the pipeline connected to the water inlet, a second stop valve is provided on the pipeline between the mixer and the spray pipeline, a water inlet end of the booster pump is connected to the mixer, and a water outlet end of the booster pump is connected to the spray pipeline; It also includes: a fertilizer tank and a fertilizer applicator, wherein the outlet end of the fertilizer applicator is connected to the spray pipeline, the liquid inlet end of the fertilizer tank is connected to the water outlet end of the booster pump through a third stop valve, and the liquid outlet end of the fertilizer tank is connected to the inlet end of the fertilizer applicator through a second check valve; It also includes: a fertilizer tank, a three-way valve and a fertilizer applicator, the outlet end of the fertilizer applicator is connected to the spray pipeline, the inlet end of the three-way valve is connected to the water outlet end of the booster pump, the first outlet end of the three-way valve is connected to the spray pipeline, the liquid inlet end of the fertilizer tank is connected to the second outlet end of the three-way valve, and the liquid outlet end of the fertilizer tank is connected to the inlet end of the fertilizer applicator through a second check valve.

2. The aeroponic planting system according to claim 1, characterized in that: Also includes: A monitoring controller and an oxygen sensor, wherein the monitoring controller is in communication connection with the air pump, the ozone generator and the oxygen sensor, and the oxygen sensor is arranged in the spray space.

3. The aeroponic planting system according to claim 2, characterized in that: Also includes: An ozone sensor is arranged in the spray space, and the ozone sensor is communicatively connected with the monitoring controller.

4. The aeroponic planting system according to claim 2, characterized in that: The first stop valve, the second stop valve and the first check valve are all electromagnetic control valves, and are respectively connected to the monitoring controller for communication.

5. The aeroponic planting system according to claim 4, characterized in that: A flow meter is installed at the water inlet of the booster pump, and the flow meter is communicatively connected with the monitoring controller.

6. The aeroponic planting system according to claim 1, characterized in that: Also includes: A humidity sensor is arranged in the spray space, and the first stop valve is opened and closed according to humidity data collected by the humidity sensor.

7. An aeroponic planting method using the aeroponic planting system according to any one of claims 1 to 6, characterized in that: The aeroponic planting method has at least one of the oxygenation mode, disinfection mode, water supply mode, water supply oxygenation mode, and water supply disinfection mode of the aeroponic planting system; wherein, The oxygen enrichment mode: opening the air pump, the first check valve and the second stop valve, and closing the first stop valve and the ozone generator; The disinfection mode: turning on the air pump, the ozone generator, the first check valve and the second stop valve, and closing the first stop valve; The water supply mode: open the first stop valve and the booster pump, and close the air pump, the ozone generator and the second stop valve; The water supply oxygenation mode: opening the first stop valve, the air pump, the mixer, the booster pump and the first check valve, and closing the ozone generator and the second stop valve; The water supply disinfection mode: open the first stop valve, air pump, ozone generator, mixer, booster pump and first check valve, and close the second stop valve.

Images