JP-2026075942-A - Plasma water generator

Abstract

[Challenge] To improve the sterilization effect compared to conventional technology. [Solution] The plasma water generating device comprises a generating unit that generates microbubble-like plasma water, a storage unit that stores the generated plasma water, a regenerating unit that generates the stored plasma water again in the form of microbubbles, a circulation unit that circulates the plasma water that has been regenerated in the form of microbubbles back to the generating unit, and a plasma water supply unit that supplies the plasma water that has been circulated and stored in the storage unit to the cultivation target. [Selection Diagram] Figure 1

Inventors

• 大西 慶一郎

Assignees

• 日本スピンドル製造株式会社

Dates

Publication Date

20260511

Application Date

20241023

Claims (7)

1. A generation unit that generates microbubble-like plasma water, A storage unit for storing the generated plasma water, A regeneration unit that generates the stored plasma water again in the form of microbubbles, A circulation unit that circulates the plasma water, which has been regenerated in the form of microbubbles, to the generation unit, A plasma water supply unit that supplies the plasma water, which has been circulated and stored in the storage unit, to the cultivation target, A plasma water generator equipped with the following features.
2. The generation unit supplies nitrogen to the plasma water. The plasma water generating apparatus according to claim 1.
3. The plasma water supply unit supplies the plasma water to the cultivation target when the concentration of nitrite in the plasma water stored in the storage unit reaches a predetermined value. The plasma water generating apparatus according to claim 2.
4. The plasma water supply unit supplies the plasma water to the cultivation target when it is determined that the nitrite concentration of the plasma water stored in the storage unit has reached a predetermined value, based on the detection value by the detection unit for detecting the nitrite concentration of the stored plasma water, or based on the time it takes for the generation unit to add nitrogen to the circulating plasma water. The plasma water generating apparatus according to claim 2.
5. The generating unit is A spray unit that sprays water in a microbubble form, The irradiation unit that irradiates plasma, Equipped with, The irradiation unit irradiates the water sprayed in a microbubble shape by the spraying unit with plasma. The plasma water generating apparatus according to claim 1.
6. Equipped with a nitrogen supply unit that supplies nitrogen, The nitrogen supply unit supplies nitrogen to the water that has been sprayed in a microbubble form by the spraying unit and irradiated with plasma, either before it is stored in the storage unit or after it is stored in the storage unit. The plasma water generating apparatus according to claim 5.
7. Equipped with a nitrogen supply unit that supplies nitrogen, The nitrogen supply unit supplies nitrogen to the plasma water stored in the storage unit. The irradiation unit irradiates the plasma water stored in the storage unit with plasma. The plasma water generating apparatus according to claim 5.

Description

The technology disclosed herein relates to a plasma water generator. Patent Document 1 discloses a system for generating a solution. In this system, a fluid such as water is sprayed from a nozzle and activated by passing it through a plasma gas, and then stored in a first container. The activated fluid stored in the first container is then sent to a second container where it is stored. Nitrogen is further supplied to the second container. The solution in the second container is supplied to a target object to sterilize it. Special Publication No. 2015-533828 Figure 1 is a schematic diagram showing an example of a plasma water generator 10 according to an embodiment.Figure 2 is a block diagram of an example of the electrical system of the plasma water generator 10.Figure 3 shows an example of processing by the functional section of the CPU 52.Figure 4 is a flowchart showing an example of a supply processing program executed by the CPU 52.Figure 5 is a schematic diagram showing an example of the plasma water generator 10H1 of the first modified example.Figure 6 is a schematic diagram showing an example of a plasma water generator 10H2 of the second modified example.Figure 7 is a schematic diagram showing an example of a third modified plasma water generator 10H3. The embodiments of the technology described herein will be described below with reference to the drawings. [Embodiment] (composition) Figure 1 is a schematic diagram showing an example of a plasma water generator 10 according to this embodiment. As shown in Figure 1, the plasma water generator 10 according to this embodiment comprises a microbubble mist generator 14 that generates microbubble-like plasma water, a storage tank 12 that stores the generated plasma water, and a cavitation generator 16 that regenerates the stored plasma water into microbubbles. The plasma water generator 10 includes a circulation pipe 20 that circulates the plasma water, which has been regenerated in the form of microbubbles, to the microbubble mist generator 14, and a valve 22 that supplies the circulated plasma water stored in the storage tank 12 to the cultivation target. The circulation pipe 20 is equipped with a pump 18 that delivers the plasma water, which has been regenerated in the form of microbubbles. The object of cultivation is, for example, a plant. The plasma water generator 10 includes a water supply device 26 that supplies water to the storage tank 12, and a liquid level sensor 24 that detects the height of the liquid level stored in the storage tank 12. The microbubble mist generator 14 comprises a spraying device 14J that sprays water in microbubble form, an irradiation device 14P that irradiates with plasma, and a nitrogen supply device 14A that supplies nitrogen. The nitrogen supply device 14A supplies nitrogen by introducing air whose main component is nitrogen. The nitrogen supply device 14A supplies nitrogen to the water that has been sprayed in microbubble form by the spraying device 14J and irradiated with plasma, before the water is stored in the storage tank 12. Furthermore, the microbubble mist generator 14 is more preferably a structure that takes in outside air with an aspirator in order to suppress the reduction of oxygen concentration in the liquid. The spraying device 14J includes various methods such as the swirling flow method, static mixer method, ejector method, venturi method, pressurized dissolution method, and cavitation method. The swirling flow method uses a high-speed swirling flow to break down bubbles and generate fine bubbles in the liquid. The static mixer method pumps gas and liquid together into a flow path under pressure, generating fine bubbles through shearing of bubbles by obstacles and protrusions. The ejector method rapidly changes the pressure in the flow path to break down bubbles into smaller particles. The venturi method also rapidly changes the pressure in the flow path to break down bubbles into smaller particles. The pressurized dissolution method uses a pump to pressurize the gas-liquid in a tank, dissolving the gas in the liquid in a supersaturated state. Then, the pressure is reduced to generate fine bubbles in the liquid. The cavitation method utilizes the cavitation phenomenon. The irradiation device 14P works by applying power between a pair of opposing electrodes (anode and cathode) to generate plasma in the gap between the anode and cathode. The nitrogen supply device 14A introduces air into microbubble water. Direct introduction of nitrogen gas is also possible. Air introduction can be done by a blower or an aspirator. An aspirator is preferable as it eliminates the need for a power source, resulting in energy savings. The air introduced into the microbubble water from the nitrogen supply device 14A mixes with the water as bubbles. Furthermore, a shock wave generating unit may be provided to form ultrafine bubbles from the microbubble water using shock waves. By introducing nitrogen from the air into mi