CN114477362A - Plasma activated water device based on piezoelectric material - Google Patents

Plasma activated water device based on piezoelectric material Download PDF

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Publication number
CN114477362A
CN114477362A CN202210175037.2A CN202210175037A CN114477362A CN 114477362 A CN114477362 A CN 114477362A CN 202210175037 A CN202210175037 A CN 202210175037A CN 114477362 A CN114477362 A CN 114477362A
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plasma
water
gas
piezoelectric material
action
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CN114477362B (en
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徐晗
谢楷
权磊
李博
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Xidian University
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Xidian University
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

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  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plasma Technology (AREA)

Abstract

The invention provides a plasma activated water device based on piezoelectric materials, which can complete a first action through an actuating mechanism, based on the positive piezoelectric effect of the piezoelectric material, the first power supply module sends a first electric signal to the plasma generating mechanism, pulse gas breakdown discharge is generated in the plasma generating mechanism, a large number of seed electrons are generated on the surface of the electrode, and a second electric signal which is continuously provided for the plasma generating mechanism by the control mechanism is matched, so that the plasma generating mechanism can generate plasma by using a gas medium in the reaction cavity, the water is mixed with an aqueous medium to generate plasma activated water, the plasma activated water is sprayed out from a nozzle, and the gas discharge pre-ionization and the auxiliary gas discharge are realized by utilizing the positive piezoelectric effect of the piezoelectric material, so that the output voltage and the power consumption of a plasma excitation power supply are greatly reduced, and the efficiency of the plasma activated aqueous solution is effectively improved.

Description

Plasma activated water device based on piezoelectric material
Technical Field
The invention belongs to the technical field of plasma application, and particularly relates to a piezoelectric material-based plasma water activating device.
Background
The atmospheric pressure cold plasma has the characteristics of high chemical activity, high energy efficiency, low cost, low pollution and the like, and is widely concerned in the field of water treatment. The high-energy electrons, high-activity particles (such as ozone, hydroxyl, hydrogen peroxide, nitrogen oxide and the like) and ultraviolet light generated by the plasma can enable the treated aqueous solution to have high chemical activity within a certain time, and the treated aqueous solution is also called as plasma activated water. The plasma activated water has good application effects in a plurality of application scenes such as plant growth stimulation, sterilization, wound cleaning and the like.
However, the related technologies and products of plasma activated water have not been widely popularized in daily life so far, mainly because the existing plasma activated water devices still have the disadvantages in the aspects of portability, miniaturization, instant taking and the like, and the reasons are at least reflected in the following two aspects:
the first aspect is the problem of structural optimization of the plasma activated water device. In the prior art, the internal structure of the plasma activated water device is mainly divided into two types, the first type is that the plasma discharge device is separated from the aqueous solution, so that the device structure is difficult to realize the requirements of integration and portability, and meanwhile, a large amount of active substances can be decomposed and disappear in gap propagation, so that the activation efficiency is low; the second is that plasma is directly generated in the aqueous solution, and the plasma active substance is directly mixed with the aqueous solution, but the excitation voltage required by the discharge in water is greatly increased, and the energy consumption is very large, so a power supply module specially used for supplying power to the plasma discharge device is always required to be configured, and the system structure is more complex.
The second aspect is that the existing device cannot realize an integrated design of plasma activated water generation and use. Specifically, the process of plasma treatment of the aqueous solution is independent from the use of the active water, and the processes of preparation, placement and secondary transfer exist, so that not only is the operation complexity increased, but also the activity and application effect of the plasma activated water are reduced by the placement and transfer processes (the active substances in the aqueous solution are gradually decomposed).
Therefore, there is a need for a plasma activated water device that can accomplish the preparation of plasma activated water in an integrated structure and that consumes less power.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a piezoelectric material-based plasma activated water device, which is mainly used for solving the problems that the plasma activated water device in the prior art is poor in structural integration, large in power consumption, difficult to popularize and the like.
In order to achieve the above object, the present invention provides a plasma activated water device based on piezoelectric material, comprising an actuating mechanism, a plasma generating mechanism, a water supply mechanism, a gas supply mechanism and a control mechanism;
the actuating mechanism is used for executing a first action, the first action is one of a discharging action, an inflating action or a water spraying action, a first power supply module made of piezoelectric materials is arranged in the actuating mechanism, and the first power supply module is pressed and generates a first electric signal in the process of executing the first action or after the first action is finished;
the water supply mechanism and the air supply mechanism respectively provide water media and air media for the plasma generation mechanism, a reaction cavity for the water media and the air media to flow is arranged in the plasma generation mechanism, the first power supply module and the control mechanism are respectively electrically connected with the plasma generation mechanism, the plasma generation mechanism responds to the first electric signal and generates pulse type discharge, the plasma generation mechanism responds to the second electric signal of the control mechanism and carries out continuous discharge ionization on the air media, the reaction cavity is provided with a nozzle, and the water media are fused with the ionized air media in the reaction cavity and are sprayed out from the nozzle.
In a possible implementation manner, the executing mechanism is a pressurizing unit, the water supply mechanism is a water container, the water container is used for containing a water medium, the pressurizing unit is connected to the water container, the pressurizing unit is used for unidirectionally pressurizing the inside of the water container, a first power module is arranged in the pressurizing unit, and pressure is applied to the first power module in a first action process of pressurizing the inside of the water container by using the pressurizing unit once.
In a possible implementation manner, the plasma generation mechanism includes a guide portion, a porous medium portion and a reaction portion, the reaction portion is disposed in a cavity enclosed by the inside of the porous medium portion, a plurality of through holes are formed in a medium wall of the porous medium portion, the guide portion is covered on the periphery of the porous medium portion, a first fit gap is formed between the reaction portion and the porous medium portion, a second fit gap is formed between the porous medium portion and the guide portion, and an outlet end of the guide portion is a nozzle.
In one possible implementation, the reaction part has one of a rod-like shape, a sheet-like shape, and a spherical shape.
In a possible implementation manner, the reaction part is a first metal electrode bar, and the outer surface of the first metal electrode bar is provided with a plurality of first bumps for reducing the initial discharge voltage.
In a possible implementation manner, the reaction portion is a dielectric barrier discharge assembly, the dielectric barrier discharge assembly includes a second metal electrode rod, a quartz dielectric tube and a ground electrode unit, a plurality of second protruding blocks for reducing an initial discharge voltage are disposed on an outer surface of the second metal electrode rod, the second metal electrode rod is inserted into the quartz dielectric tube, and the ground electrode unit is attached to an outer wall of the quartz dielectric tube.
In a possible implementation manner, the reaction portion is a dielectric barrier discharge assembly, the dielectric barrier discharge assembly includes a third metal electrode rod, an insulating layer is disposed on an outer surface of the third metal electrode rod, and a conductive paint layer or a metal mesh/wire layer is disposed on an outer surface of the insulating layer.
In a possible implementation manner, the air supply mechanism comprises an air pump, the porous medium part is provided with an air inlet, and the air pump is connected with the air inlet through an air pipe.
In a possible implementation manner, the gas supply mechanism further comprises a heating module, the heating module is connected to the gas pipe and used for heating the gas medium in the gas pipe, and the heating module is provided with at least one heating power gear.
In one possible implementation, the water container is provided with a base, and the air supply mechanism and the control mechanism are arranged in the base.
Compared with the prior art, the beneficial effects of the technical scheme at least comprise:
when the first action is completed, based on the positive piezoelectric effect of the piezoelectric material, a first power supply module sends a first electric signal to a plasma generating mechanism, pulse type gas breakdown discharge is generated in the plasma generating mechanism, a large number of seed electrons are generated on the surface of an electrode, and a control mechanism is matched to continuously provide a second electric signal to the plasma generating mechanism, so that the plasma generating mechanism can generate plasma by using a gas medium in a reaction cavity, the plasma is mixed with an aqueous medium to generate plasma activated water and is sprayed out from a nozzle, gas discharge pre-ionization and auxiliary gas discharge are realized by using the positive piezoelectric effect of the piezoelectric material, the output voltage and the power consumption of a plasma excitation power supply are greatly reduced, and the efficiency of activating an aqueous solution by the plasma is effectively improved;
the steps of pre-ionization of the first power module, mixing of the plasma and the water medium to generate plasma activated water and spraying of the activated water can be completed only by executing the first action once, optionally, the first action is a pressing and inflating action, and the plasma activation is high, the structural integration level is high, the operation is simple and convenient, and the popularization is strong.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a schematic view of the interior of the structure of a piezoelectric material based plasma activated water device in one embodiment.
Fig. 2 is a schematic view of the inside of the structure of a plasma activated water device based on a piezoelectric material in another embodiment.
Fig. 3 is a schematic view of the inside of the structure of a plasma activated water device based on a piezoelectric material in still another embodiment.
FIG. 4 is a schematic view of the structure of a reaction part in one embodiment.
FIG. 5 is a schematic sectional view of a reaction part in another embodiment.
FIG. 6 is a schematic view of the structure of a reaction part in still another embodiment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 6, the present embodiment provides a piezoelectric material-based plasma activated water device, which includes an actuator 1, a plasma generating mechanism 2, a water supply mechanism 3, a gas supply mechanism 4, and a control mechanism 5, wherein the actuator 1, the plasma generating mechanism 2, the water supply mechanism 3, the gas supply mechanism 4, and the control mechanism 5 are all integrated into one structural space;
the actuating mechanism 1 is used for executing a first action, the first action is one of a discharging action, an inflating action or a water spraying action, a first power module 15 made of piezoelectric materials is arranged in the actuating mechanism 1, and in the process of executing the first action or after the first action is finished, the first power module 15 is pressed and generates a first electric signal;
it should be noted that the first action is one of the actions performed by the plasma activated water device, and may be the only action to be performed by the operator. As an implementation manner, the plasma activated water device is in the form of a pressure spraying kettle, and the kettle needs to be inflated to make the air pressure in the kettle greater than the external air pressure, so as to spray out the aqueous medium in the kettle, so that the first action may be an inflating action when the inflator 12 is pressed down, a water spraying action when the water spraying valve is pressed down, or an independent discharging action, in short, in the execution process or after the first action is finished, the pressing deformation caused by the first action is transferred to the first power module 15, and the first power module 15 generates the first electric signal based on the positive piezoelectric effect of the piezoelectric material.
Still further, the water supply mechanism 3 and the gas supply mechanism 4 respectively provide an aqueous medium and a gas medium for the plasma generation mechanism 2, the plasma generation mechanism 2 is internally provided with a reaction chamber 20 in which the water medium and the gas medium flow, the reaction chamber 20 is provided with a water inlet and a gas inlet 42, the aqueous medium in the water supply mechanism 3 enters the reaction chamber 20 from the water inlet, the gas supply mechanism 4 provides the gas medium for the reaction chamber 20 from the gas inlet 42, the first power module 15 and the control mechanism 5 are respectively and electrically connected with the plasma generation mechanism 2, circuits of the first power module 15 and the control mechanism 5 are not interfered with each other, respectively supply power to the plasma generation mechanism 2, more specifically, the plasma generation mechanism 2 responds to a first electric signal and generates pulse type discharge, the plasma generation mechanism 2 responds to a second electric signal of the control mechanism 5 and continuously discharges and ionizes the gas medium, the reaction chamber 20 is provided with a nozzle 21, and the aqueous medium is fused with the ionized gas medium in the reaction chamber 20 and is sprayed out from the nozzle 21.
The control mechanism 5 and the first power module 15 both independently supply power to the plasma generation mechanism 2, but the control mechanism 5 and the first power module 15 are divided by the power supply sequence, specifically: executing a first action, triggering a first power supply module 15 to provide a first electric signal to the plasma generating mechanism 2, wherein the first electric signal is a high voltage of several kV to dozens of kV generated by the piezoelectric material under pressure deformation, and the piezoelectric material can adopt piezoelectric ceramics of a lighter; the plasma generating mechanism 2 generates pulse type discharge after receiving the first electric signal, the pulse type discharge can have the effect of pre-ionization before the plasma generating mechanism 2 contacts or treats the water medium, a large amount of seed electrons are generated on the surface of the high-voltage electrode of the reaction part 24 of the plasma generating mechanism 2, the initial breakdown voltage required by the plasma generating mechanism 2 and the output voltage required by the control mechanism 5 can be effectively reduced, the defect of high breakdown voltage required by the discharge in the water is overcome, the first action can be executed for multiple times, except for outputting in advance before the control mechanism 5 continuously outputs the second electric signal, in the process that the control mechanism 5 continuously outputs the second electric signal, namely in the process that the water medium is treated by the plasma, the first action is kept executed, namely the first power module 15 is kept triggered and pressed, so that the piezoelectric material in the first action can generate high voltage each time, the gas discharge is continuously enhanced, the auxiliary discharge effect is improved, and the plasma intensity and the active substances are effectively improved.
Due to the auxiliary effect of the first power supply module 15, the excitation voltage required to be output by the control mechanism 5 can be greatly reduced, the volume structure of the control mechanism 5 is reduced, furthermore, the control mechanism 5 comprises a second power module 51 and a processing unit 52, the second power module 51 is used for providing a second electric signal, the second power module 51 can be in the form of a pulse power supply, an alternating current power supply and other finished power supplies, can also be in the form of a storage battery adding inverter and a booster circuit, and is mainly used for generating continuous steady-state high voltage, the processing unit 52 is electrically connected to the first power module 15 and the second power module 51, respectively, for processing corresponding control logic, in one embodiment, when the first power module 15 generates the first electrical signal, the processing unit 52 controls the second power module 51 to supply power to the plasma generation mechanism 2, which effectively reduces energy efficiency.
In some embodiments, the plasma activated water device is applied by connecting a water pipe to a water faucet, the water supply mechanism is a water valve and controls the supply of an aqueous medium, the actuator realizes water spraying by pressing, the first power module generates a first electric signal based on a positive piezoelectric effect in the pressing process, so that the plasma generating mechanism generates pulse type discharge, and in the process, the aqueous medium and the gas medium are sprayed out of the actuator through the plasma generating mechanism, so that the plasma activation process of the aqueous medium is completed. The method is suitable for a scene of using water in a large range.
In some embodiments, in the form of a pressurized water spraying kettle, the actuator 1 is a pressurizing unit 10, the water supply mechanism 3 is a water container 30, the water container 30 is used for containing water medium, the pressurizing unit 10 is connected to the water container 30, and the pressurizing unit 10 is used for unidirectionally pressurizing the water container 30; the specific structure of the pressurizing unit 10 is various, preferably, the pressurizing unit 10 includes a pressure lever 11, an air pump 12, a return spring 13, a one-way air valve 14 and a first power module 15, the air pump 12 is fixed on the top of the water container 30, the pressure lever 11 is connected in the air pump 12 through the return spring 13, the one-way air valve 14 is fixed on the lower wall surface of the air pump 12, external air is pressed into the water container 30 through the one-way air valve 14 by repeatedly pressing the pressure lever 11, so that the air pressure in the water container 30 is increased, the first power module 15 is fixed on the bottom of the air pump 12, the first power module 15 is also pressed during the process of pressing the pressure lever 11 downwards, that is, the pressure is applied to the first power module 15 during the first action of pressurizing the pressurizing unit 10 into the water container 30, wherein the first power module 15 can be directly connected with the pressed pressure lever 11, a pressing plate can also be arranged at the bottom of the return spring 13, a connecting plate connected with the pressing rod 11 is arranged at the upper part of the return spring 13, and the pressure is transferred through the return spring 13, so that the first power supply module 15 is pressed. It should be understood that any form of pressurizing unit 10 may be used, and the pressurizing unit is considered to be within the scope of the present embodiment as long as it is sufficient to apply pressure on the first power module 15 during pressurizing.
In the embodiment, three steps of generating plasma based on a piezoelectric material, treating an aqueous medium by the plasma and spraying active water can be completed by only one-time pressing action, so that the plasma activated aqueous solution can be immediately prepared and used, the plasma active substance is efficiently utilized to the maximum extent, the reduction of activity is avoided, the structure is simple, and the operation is convenient.
In some embodiments, the plasma generating mechanism 2 includes a guiding portion 22, a porous medium portion 23 and a reaction portion 24, the reaction portion 24 is disposed in a chamber enclosed inside the porous medium portion 23, a plurality of fine through holes 25 are opened at a medium wall of the porous medium portion 23, at least a portion of the porous medium portion 23 is correspondingly disposed at a lower portion of the water container 30 so that the aqueous medium is pumped up, the guiding portion 22 is covered at a periphery of the porous medium portion 23, a bottom of the guiding portion 22 is provided with at least one water inlet hole for water inlet, a first fitting gap 26 is disposed between the reaction portion 24 and the porous medium portion 23, the porous medium portion 23 is enclosed at a periphery of the reaction portion 24, the porous medium portion 23 is provided with a gas inlet 42, the gas supply mechanism 4 inputs external gas from the gas inlet 42 to the chamber enclosed by the porous medium portion 23, the chamber is further provided with the reaction portion 24, and the reaction portion 24 is used for generating plasma, after receiving the power provided by the first power module 15 and/or the control mechanism 5, the reaction part 24 ionizes the gas medium in the internal cavity of the porous medium part 23, the discharge gas flows in the first fit gap 26 and flows out from the plurality of fine through holes 25 to enter the second fit gap 27 between the porous medium part 23 and the guide part 22, the plasma and the water medium are fully fused and reacted in the space to obtain activated water, the outlet end of the guide part 22 is the nozzle 21, the activated water is sprayed out from the nozzle 21 under the action of pressure, and the nozzle 21 is provided with a plurality of fine holes, so that the effects of spraying, sprinkling and the like are realized.
As an embodiment, the plasma generating mechanism 2 is fixed in the kettle body of the water container 30; as another embodiment, the plasma generating mechanism 2 can be placed in the water outlet pipe of the water container 30 to ensure that the plasma activated water solution can be instantly prepared and used.
In order to better improve the efficiency of generating plasma by the reaction part 24 and improve the fusion effect of the plasma and the aqueous medium, the preferable value range of the first fit clearance 26 is 1-3 mm, the small clearance can improve the pre-ionization effect of the reaction part 24 under the action of the first electric signal, and more seed electrons are generated on the surface of the high-voltage electrode of the reaction part 24; the aperture of the through hole 25 is 1-10 μm, and the small-aperture through hole 25 can reduce the aqueous medium entering the porous medium part 23 due to the tension of the aqueous medium, and can ensure the effective release of plasma; the preferable value range of the second fit clearance 27 is 3-5 mm, and in the range, the flow speed of the aqueous medium can be relatively increased, so that the disturbance mixing between the aqueous medium and the plasma is further intensified, but the aqueous medium still keeps laminar flow instead of turbulent flow in the process, the plasma is prevented from being invalid due to too violent movement, and the activity of activated water is ensured.
Referring to fig. 2, further, the guide portion 22 and the porous medium portion 23 are arranged in a wave shape to exhibit a flow in a rugged state when the aqueous medium flows in the direction of the nozzle 21 in the second fitting gap 27, in such a manner that the fusion between the aqueous medium and the plasma can be more effectively achieved.
Preferably, the shape of the reaction part 24 is one of a rod, a sheet and a sphere, and the reaction part 24 may be entirely immersed in an aqueous medium or partially immersed in an aqueous medium; in order to increase the contact area, the reaction portion 24 having the above shapes can improve the mixing effect of the plasma generated by the reaction portion 24 and the aqueous medium. The setting direction of the rod-shaped reaction part 24 is consistent with the direction of the water medium drawn out of the spout nozzle 21 from the kettle bottom, the water medium can be fully contacted with the plasma in the flowing process, and the water medium contacted with the plasma is the water medium needing to be sprayed out, namely the time, probability, area and the like of each water medium contacted with the plasma are relatively close in the process of drawing from the kettle bottom to the nozzle 21, and activated water with relatively stable active concentration can be formed; referring to fig. 3, the sheet or spherical reaction part 24 is suitable for being entirely soaked in the aqueous medium, so that the plasma is ensured to be contacted with the aqueous medium at the first time when the plasma is released, and the problem that the plasma escapes without contacting the aqueous medium is avoided.
Referring to fig. 1 to 3, in one embodiment, the reaction portion 24 is a first metal electrode bar 241, the outer surface of the first metal electrode bar 241 is provided with a plurality of first protrusions 242 for reducing the initial discharge voltage, and the first protrusions 242 may be needle-shaped.
Referring to fig. 4, in another embodiment, the reaction part 24 adopts a dielectric barrier discharge structure, the dielectric barrier discharge component includes a second metal electrode bar 243, a quartz dielectric tube 244 and a ground electrode unit 245, and is divided into a three-layer structure, the outer surface of the second metal electrode bar 243 is provided with a plurality of second protrusions 246 for reducing the initial discharge voltage, the second protrusions 246 may be needle-shaped, the second metal electrode bar 243 is inserted into the quartz dielectric tube 244, the quartz dielectric tube 244 is tightly connected with the second metal electrode bar 243, the ground electrode unit 245 is attached to the outer wall of the quartz dielectric tube 244, and the ground electrode unit 245 is composed of a plurality of annular metal foils.
In another embodiment, the reaction portion 24 is of a dielectric barrier discharge structure, the dielectric barrier discharge assembly includes a third metal electrode rod 247, the surface of the third metal electrode rod 247 has no protrusions, an insulating layer 248 is tightly attached to the outer surface of the third metal electrode rod 247, the insulating layer 248 is made of alumina ceramic or teflon, and an electrically conductive paint layer 249 or a metal mesh/wire layer 250 is disposed on the outer surface of the insulating layer 248, where, in conjunction with fig. 5, the electrically conductive paint layer 249 may be coated, in conjunction with fig. 6, the metal wire layer is tightly wound on the outer surface of the insulating layer 248, and the metal mesh layer is tightly attached to the outer surface of the insulating layer 248.
In some embodiments, the gas supply mechanism 4 includes a gas pump 41, the bottom of the rod-shaped porous medium part 23 is provided with a gas inlet 42, the gas pump 41 is connected with the gas inlet 42 through a gas pipe, and the gas pump 41 inputs the external gas into the porous medium part 23 from the bottom thereof, so that the gas medium is in contact with the reaction part 24.
Preferably, the gas supply mechanism 4 further includes a heating module 43, the heating module 43 is electrically connected to the second power module 51, the heating module 43 is connected to the gas pipe and is used for heating the gas medium in the gas pipe, the temperature of the gas medium can be raised by using the heating module 43, so as to raise the reaction temperature when the gas medium generates plasma when the reaction part 24 discharges, according to requirements, the heating module 43 can be provided with two heating power steps, the first heating power step is a normal temperature mode, that is, the heating module 43 does not generate heat and is in a gas normal temperature mode, in which the plasma activated water contains a large amount of active ingredients such as ozone and hydrogen peroxide, and is suitable for sterilization; the second heating power stage is a high temperature mode, in which the heating module 43 generates heat, and is in a gas high temperature mode, the temperature of the gas medium is about 60-70 ℃, and in this mode, the plasma activated water contains a large amount of nitrogen oxides and other active ingredients, because at high temperature, ozone and nitrogen oxides exist in a conversion mode, ozone is decomposed, and nitrogen oxides are generated in a large amount, and this mode is suitable for stimulating plant growth, which is equivalent to applying nitrogen fertilizer.
In some embodiments, in order to improve the integral structural integration of the plasma activated water device, the water container 30 is provided with a base 6, the gas supply mechanism 4 and the control mechanism 5 are arranged in the base 6, a handle is arranged on the side wall of the water container 30, when in use, the handle is held by one hand, the actuating mechanism 1 is pressed by one hand, the gas supply mechanism 4 in the base 6 can continuously provide gas media for the plasma generating mechanism 2, meanwhile, the water media carried in the water container 30 can also be used, and as the first power module 15 based on piezoelectric materials greatly reduces the power supply pressure of the second power module 51, the plasma generating mechanism 2 can be ionized by using a storage battery, and plasma activated water is generated.
Compared with the prior art, the above embodiment provides a plasma activated water device based on a piezoelectric material, and while the first action is completed, based on the positive piezoelectric effect of the piezoelectric material, the first power module 15 sends a first electric signal to the plasma generating mechanism 2, pulse type gas breakdown discharge occurs in the plasma generating mechanism 2, a large number of seed electrons are generated on the electrode surface, and the control mechanism 5 continuously provides a second electric signal to the plasma generating mechanism 2, so that in the reaction chamber 20, the plasma generating mechanism 2 can generate plasma by using a gas medium, mix with the water medium to generate plasma activated water, and spray out from the nozzle 21, and pre-ionization and auxiliary gas discharge of gas discharge are realized by using the positive piezoelectric effect of the piezoelectric material, so as to greatly reduce the output voltage and power consumption of the plasma excitation power supply, the efficiency of activating the aqueous solution by the plasma is effectively improved;
only need carry out once first action, optionally, this first action is the action of pressing and inflating, can accomplish the preionization of first power module 15, the step that plasma and aqueous medium mix and generate plasma activation water and spray activation water, and plasma activity is high, and the structure integrated level is high, and easy operation is convenient, and the popularization nature is strong.
Finally, it should be emphasized that the present invention is not limited to the above-described embodiments, but only the preferred embodiments of the invention have been described above, and the present invention is not limited to the above-described embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The above description is the main flow steps of the invention, in which other functional steps can be inserted, and the above logic sequence and flow steps can be disturbed, and if the data processing mode is similar to the flow step form or the core concept of data processing is similar, the same should be protected.

Claims (10)

1. A plasma activated water device based on piezoelectric materials is characterized by comprising an actuating mechanism, a plasma generating mechanism, a water supply mechanism, a gas supply mechanism and a control mechanism;
the actuating mechanism is used for executing a first action, the first action is one of a discharging action, an inflating action or a water spraying action, a first power supply module made of piezoelectric materials is arranged in the actuating mechanism, and the first power supply module is pressed and generates a first electric signal in the process of executing the first action or after the first action is finished;
the water supply mechanism and the air supply mechanism respectively provide water media and air media for the plasma generation mechanism, a reaction cavity for the water media and the air media to flow is arranged in the plasma generation mechanism, the first power supply module and the control mechanism are respectively electrically connected with the plasma generation mechanism, the plasma generation mechanism responds to the first electric signal and generates pulse type discharge, the plasma generation mechanism responds to the second electric signal of the control mechanism and carries out continuous discharge ionization on the air media, the reaction cavity is provided with a nozzle, and the water media are fused with the ionized air media in the reaction cavity and are sprayed out from the nozzle.
2. The piezoelectric material-based plasma activated water device according to claim 1, wherein the actuator is a pressurizing unit, the water supply mechanism is a water container for containing a water medium, the pressurizing unit is connected to the water container, the pressurizing unit is used for pressurizing the inside of the water container in a single direction, a first power module is arranged in the pressurizing unit, and pressure is applied to the first power module during a first action of pressurizing the inside of the water container by the pressurizing unit.
3. The piezoelectric material-based plasma activated water device according to claim 2, wherein the plasma generation mechanism comprises a guide portion, a porous medium portion and a reaction portion, the reaction portion is arranged in a chamber enclosed by the porous medium portion, a plurality of through holes are formed in a medium wall of the porous medium portion, the guide portion is covered on the periphery of the porous medium portion, a first fit gap is formed between the reaction portion and the porous medium portion, a second fit gap is formed between the porous medium portion and the guide portion, and an outlet end of the guide portion is a nozzle.
4. A piezoelectric material based plasma activated water device as claimed in claim 3, wherein the reaction part is in the shape of one of a rod, a sheet and a sphere.
5. The piezoelectric material-based plasma activated water device according to claim 4, wherein the reaction part is a first metal electrode rod, and the outer surface of the first metal electrode rod is provided with a plurality of first bumps for reducing the initial discharge voltage.
6. The piezoelectric material-based plasma activated water device according to claim 4, wherein the reaction part is a dielectric barrier discharge assembly, the dielectric barrier discharge assembly comprises a second metal electrode rod, a quartz dielectric tube and a ground electrode unit, a plurality of second protruding blocks for reducing an initial discharge voltage are arranged on an outer surface of the second metal electrode rod, the second metal electrode rod is inserted into the quartz dielectric tube, and the ground electrode unit is attached to an outer wall of the quartz dielectric tube.
7. The piezoelectric material-based plasma activated water device according to claim 4, wherein the reaction part is a dielectric barrier discharge assembly, the dielectric barrier discharge assembly comprises a third metal electrode rod, an insulating layer is arranged on the outer surface of the third metal electrode rod, and a conductive paint layer or a metal mesh/wire layer is arranged on the outer surface of the insulating layer.
8. The piezoelectric material-based plasma activated water device according to any one of claims 3 to 7, wherein the gas supply mechanism comprises a gas pump, the porous medium portion is provided with a gas inlet, and the gas pump is connected with the gas inlet through a gas pipe.
9. The piezoelectric material-based plasma activated water device according to claim 8, wherein the gas supply mechanism further comprises a heating module connected to the gas pipe and used for heating a gas medium in the gas pipe, and the heating module is provided with at least one heating power gear.
10. A piezoelectric material based plasma activated water device as claimed in claim 9, wherein the water container is provided with a base, and the gas supply means and the control means are provided in the base.
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