Combined nanobubble water irrigation device and method

Abstract

The invention relates to the technical field of agricultural production, in particular to a combined nanobubble water irrigation device and method.The combined nanobubble water irrigation device comprises a water storage tank, a water storage water pump, a nitrogen-rich gas source, an oxygen-rich gas source, a nitrogen pipeline, an oxygen pipeline, a first nanobubble generating device, a second nanobubble generating device, a booster water pump and an irrigation pipeline; according to the device, a large number of nitrogen nano-bubbles and oxygen nano-bubbles are generated in irrigation water by adopting two steps of nano-bubble generation processes, namely a nitrogen nano-bubble preparation process and an oxygen nano-bubble preparation process by utilizing the characteristic that the nano-bubbles can stably exist for a long time and hardly transfer mass with an aqueous solution once being generated; the coexistence of the nitrogen nano bubbles and the oxygen nano bubbles in the irrigation water is realized, the inorganic nitrogen nutrition conversion function of the nitrogen nano bubbles and the soil oxygenation process of the oxygen-enriched nano bubbles are realized, and the method is an irrigation technology with a very good development prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural production, and in particular to a combined nano bubble water irrigation device and method. Background Art

[0002] Nanobubbles generally refer to bubbles with a diameter of 1nm-1000nm, and the particle size of nanobubbles usually observed is in the range of 50-200nm. Compared with traditional large bubbles, nanobubbles are small in size and exist stably in the water in the form of Brownian motion for a long time. Experiments have shown that nanobubbles also have many physiological effects. For example, low soil oxygen content can easily cause root hypoxia. The traditional irrigation method of surface water is difficult to provide enough dissolved oxygen for the root soil. When air nanobubble water or oxygen nanobubble water is used for irrigation, the soil oxygen content can be effectively increased, which is a very effective way to increase soil oxygen. On the other hand, nanobubbles will form active oxidants during their "quenching" process. When the nitrogen content of the gas in the nanobubbles is high and the oxygen content is low, the nitrogen molecules have a chance to participate in the generation process of active oxidants and be oxidized into nitrogen oxides, which are then converted into inorganic nitrogen nutrients that can be absorbed by the roots, promoting plant growth. However, the above process will be inhibited by the highly electronegative oxygen contained in the nanobubbles. Therefore, if the inorganic nitrogen nutrient conversion function of nitrogen nanobubbles and the soil oxygenation process of oxygen-rich nanobubbles can be achieved at the same time, it will inevitably become an irrigation technology with great development prospects.

[0003] In view of this, the present invention provides a combined nanobubble water irrigation device and method. The device utilizes the characteristics that once nanobubbles are generated, they can stably exist for a long time and hardly transfer mass with the aqueous solution. A two-step nanobubble generation process is adopted, namely, a nitrogen nanobubble preparation process and an oxygen nanobubble preparation process, to generate a large number of nitrogen nanobubbles and oxygen nanobubbles in the irrigation water, thereby achieving the coexistence of nitrogen nanobubbles and oxygen nanobubbles in the irrigation water, and realizing the inorganic nitrogen nutrient conversion function of nitrogen nanobubbles and the soil oxygenation process of oxygen-rich nanobubbles. The device is an irrigation technology with great development prospects. Summary of the invention

[0004] The object of the present invention is to provide a combined nano bubble water irrigation device and method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A combined nano bubble water irrigation device and method, characterized in that it comprises a water storage tank, a water storage pump, a nitrogen-rich gas source, an oxygen-rich gas source, a nitrogen pipeline, an oxygen pipeline, a first nano bubble generating device, a second nano bubble generating device, a booster water pump and an irrigation pipeline;

[0007] The nitrogen-rich gas source may be a nitrogen cylinder or a pressure swing adsorption nitrogen generator; the oxygen-rich gas source may be an oxygen cylinder or a pressure swing adsorption oxygen generator, or a pressure swing adsorption air separator may be used as both the nitrogen-rich gas source and the oxygen-rich gas source;

[0008] The first nano bubble generating device and the second nano bubble generating device are devices that can generate nano-scale bubbles with an average bubble diameter of 10nm-1000nm in water, which are one or more combinations of microporous membrane aeration process, hydraulic shear process, mechanical shear process, pressurization and decompression process, and temperature reduction and heating process;

[0009] The irrigation water in the water storage tank is pressurized by the water storage pump and then enters the first nano bubble generating device. The nitrogen generated by the nitrogen-rich gas source enters the first nano bubble generating device through the nitrogen pipeline. The first nano bubble generating device generates a large number of nitrogen nano bubbles with an average bubble diameter of 10nm-1000nm.

[0010] The irrigation water containing a large number of nitrogen nanobubbles discharged from the first nanobubble generating device is pressurized by a booster pump and then enters the second nanobubble generating device. The oxygen generated by the oxygen-rich source enters the second nanobubble generating device through an oxygen pipeline. The second nanobubble generating device generates a large number of oxygen nanobubbles with an average bubble diameter of 10nm-1000nm.

[0011] The irrigation water containing a large amount of nitrogen nanobubbles and oxygen nanobubbles discharged from the second nanobubble generating device enters the irrigation water pipeline to realize irrigation.

[0012] Furthermore, an automatic exhaust valve is provided on the pipeline between the first nano bubble generating device and the booster water pump; and an automatic exhaust valve is provided on the irrigation pipeline.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the device utilizes the characteristics that once nanobubbles are generated, they can exist stably for a long time and hardly transfer mass with the aqueous solution, and adopts a two-step nanobubble generation process, namely, a nitrogen nanobubble preparation process and an oxygen nanobubble preparation process, to generate a large number of nitrogen nanobubbles and oxygen nanobubbles in the irrigation water, thereby achieving the coexistence of nitrogen nanobubbles and oxygen nanobubbles in the irrigation water, realizing the inorganic nitrogen nutrient conversion function of nitrogen nanobubbles and the soil oxygenation process of oxygen-rich nanobubbles, and is an irrigation technology with great development prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the present invention.

[0015] Serial numbers in the figure: 1 is a water storage tank, 2 is a water storage pump, 3 is a nitrogen contact tank water inlet pipeline, 6 is a nitrogen pipeline, 7 is a pressure swing adsorption air separator, 8 is an oxygen pipeline, 9 is a ceramic diaphragm plate, 10 is a nitrogen contact tank, 11 is a nitrogen automatic exhaust valve, 12 is a nitrogen contact tank water outlet pipeline, 13 is a booster pump, 14 is an oxygen contact tank water inlet pipeline, 15 is a ceramic diaphragm plate, 16 is an oxygen contact tank, 17 is an oxygen automatic exhaust valve, 18 is an oxygen contact tank water outlet pipeline, and 19 is a drip irrigation belt. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0018] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically limited.

[0019] See also Figure 1 As shown, the present invention provides a combined nano bubble water irrigation device and method embodiment:

[0020] The irrigation water in the water storage tank 1 is pressurized by the water storage pump 2 and enters the nitrogen contact tank 10 through the nitrogen contact tank inlet pipe 3; the nitrogen generated by the pressure swing adsorption air separator 7 enters the nitrogen contact tank 10 through the nitrogen pipe 6 and the microporous membrane on the surface of the ceramic membrane plate 9, forming a large number of nitrogen nanobubbles in the irrigation water, and the irrigation water containing a large number of nitrogen nanobubbles is discharged from the nitrogen contact tank 10 through the nitrogen contact tank outlet pipe 12. The nitrogen contact tank outlet pipe 12 is provided with a nitrogen automatic exhaust valve 11 to discharge the free nitrogen in the irrigation water, and the irrigation water containing a large number of nitrogen nanobubbles is pressurized by the booster pump 13 and enters the oxygen contact tank 16 through the oxygen contact tank inlet pipe 14. The pressure swing adsorption air separator 7 generates nitrogen gas through the nitrogen pipe 6 and the microporous membrane on the surface of the ceramic membrane plate 9, forming a large number of nitrogen nanobubbles in the irrigation water. The irrigation water containing a large number of nitrogen nanobubbles is discharged from the nitrogen contact tank 10 through the nitrogen contact tank outlet pipe 12. The nitrogen contact tank outlet pipe 12 is provided with a nitrogen automatic exhaust valve 11 to discharge the free nitrogen in the irrigation water. The irrigation water containing a large number of nitrogen nanobubbles is pressurized by the booster pump 13 and enters the oxygen contact tank 16 through the oxygen contact tank inlet pipe 14. The nitrogen generated by the gas separator 7 enters the nitrogen contact tank 16 through the oxygen pipeline 8 and the microporous membrane on the surface of the ceramic membrane plate 15, and forms a large number of oxygen nanobubbles in the irrigation water. Since the nanobubbles can stably exist in the water without obvious mass transfer with the water, this process will not significantly reduce the content of nitrogen nanobubbles originally existing in the irrigation water. The irrigation water containing a large number of nitrogen nanobubbles and oxygen nanobubbles is injected into the drip irrigation belt 19 through the oxygen contact tank outlet pipeline 18. The oxygen contact tank outlet pipeline 18 is provided with an oxygen automatic exhaust valve 17 to discharge the free nitrogen in the irrigation water. The irrigation water is finally discharged from the drip irrigation belt 19 to realize the irrigation of nitrogen nanobubbles, oxygen nanobubbles and nanobubbles combined nanobubble water.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the device utilizes the characteristics that once nanobubbles are generated, they can exist stably for a long time and hardly transfer mass with the aqueous solution, and adopts a two-step nanobubble generation process, namely, a nitrogen nanobubble preparation process and an oxygen nanobubble preparation process, to generate a large number of nitrogen nanobubbles and oxygen nanobubbles in the irrigation water, thereby achieving the coexistence of nitrogen nanobubbles and oxygen nanobubbles in the irrigation water, realizing the inorganic nitrogen nutrient conversion function of nitrogen nanobubbles and the soil oxygenation process of oxygen-rich nanobubbles, and is an irrigation technology with great development prospects.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A combined nano bubble water irrigation device and method, characterized in that, It includes a water storage tank, a water storage pump, a nitrogen-rich gas source, an oxygen-rich gas source, a nitrogen pipeline, an oxygen pipeline, a first nano bubble generating device, a second nano bubble generating device, a booster water pump and an irrigation pipeline; The nitrogen-rich gas source may be a nitrogen cylinder or a pressure swing adsorption nitrogen generator; the oxygen-rich gas source may be an oxygen cylinder or a pressure swing adsorption oxygen generator, or a pressure swing adsorption air separator may be used as both the nitrogen-rich gas source and the oxygen-rich gas source; The first nano bubble generating device and the second nano bubble generating device are devices that can generate nano-scale bubbles with an average bubble diameter of 10nm-1000nm in water, which are one or more combinations of microporous membrane aeration process, hydraulic shear process, mechanical shear process, pressurization and decompression process, and temperature reduction and heating process; The irrigation water in the water storage tank is pressurized by the water storage pump and then enters the first nano bubble generating device. The nitrogen generated by the nitrogen-rich gas source enters the first nano bubble generating device through the nitrogen pipeline. The first nano bubble generating device generates a large number of nitrogen nano bubbles with an average bubble diameter of 10nm-1000nm. The irrigation water containing a large number of nitrogen nanobubbles discharged from the first nanobubble generating device is pressurized by a booster pump and then enters the second nanobubble generating device. The oxygen generated by the oxygen-rich source enters the second nanobubble generating device through an oxygen pipeline. The second nanobubble generating device generates a large number of oxygen nanobubbles with an average bubble diameter of 10nm-1000nm. The irrigation water containing a large amount of nitrogen nanobubbles and oxygen nanobubbles discharged from the second nanobubble generating device enters the irrigation water pipeline to realize irrigation.

2. The combined nano bubble water irrigation device and method according to claim 1, characterized in that: An automatic exhaust valve is still arranged on the pipeline between the first nano bubble generating device and the booster water pump; and an automatic exhaust valve is arranged on the irrigation pipeline.

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