CN114890499A - Plasma activated water preparation device - Google Patents
Plasma activated water preparation device Download PDFInfo
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- CN114890499A CN114890499A CN202210634345.7A CN202210634345A CN114890499A CN 114890499 A CN114890499 A CN 114890499A CN 202210634345 A CN202210634345 A CN 202210634345A CN 114890499 A CN114890499 A CN 114890499A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 128
- 238000005086 pumping Methods 0.000 claims description 32
- 238000007599 discharging Methods 0.000 claims description 15
- 239000012212 insulator Substances 0.000 claims description 4
- 210000002381 plasma Anatomy 0.000 abstract description 72
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 9
- 239000003570 air Substances 0.000 description 119
- 239000000243 solution Substances 0.000 description 71
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- 239000007864 aqueous solution Substances 0.000 description 10
- 239000004575 stone Substances 0.000 description 7
- 239000012080 ambient air Substances 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 5
- 238000002679 ablation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- -1 on one hand Substances 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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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 application relates to a plasma activated water preparation device, which specifically comprises a gas-phase discharge assembly 100, a gas-liquid mixed-phase discharge assembly and a container, wherein a solution to be treated is contained in the container, the gas-phase discharge assembly 100 ionizes air to generate air plasmas, the air plasmas are transmitted to the solution to be treated, are gradually dissolved into the solution to be treated, and generate H in the solution to be treated + 、NO 2 ‑ And NO 3 ‑ (ii) a The gas-liquid mixed phase discharge assembly is ionized at a gas-liquid interface, and a large amount of H is generated in the liquid at the gas-liquid interface 2 O 2 . The scheme of the combination of gas-phase discharge and gas-liquid mixed-phase discharge simultaneously generates a large amount of gas plasma (including H) in the whole process + 、NO 2 ‑ And NO 3 ‑ Etc.) and a large amount of H 2 O 2 The preparation efficiency of the plasma activated water can be obviously improved.
Description
Technical Field
The application relates to the technical field of activated water preparation, in particular to a plasma activated water preparation device.
Background
Plasma Activated Water (PAW) is a generic name for Plasma-treated distilled Water, physiological saline, and tap Water. During the interaction of the plasmas in the liquids, on one hand, products such as O3, NO2 and the like generated in the self-discharge process are directly diffused and dissolved in water to generate H + 、NO 2 - 、NO 3 - On the other hand, water molecules also participate in the discharge reaction to generate short-lived, strongly oxidizing radicals, OH, which are ultimately converted to H 2 O 2 . The oxidizing particles in the PAW can further react to generate strong oxide substances such as ONOOH, so that the PAW has a strong application prospect in the field of sterilization and disinfection.
The surface PAW has been studied for H + 、NO 2 - And H 2 O 2 The higher the concentration of the three particles, the better the PAW bactericidal effect, so increasing the concentration of the three particles in the PAW is the key to increase the PAW bactericidal effect. Most of the existing PAW preparation devices generate plasma by discharging in air in a Dielectric Barrier Discharge (DBD) mode in a dielectric tube mode, and then a product after discharging is introduced into water by using an air exhaust piece. In order to improve the efficiency of the preparation of the PAW, many have proposed a method using a multi-tube discharge array.
However, the use of the multi-tube array in air can increase H in PAW + 、NO 2 - But for H 2 O 2 The concentration is increased to play a very limited role, the prepared PAW is mainly sterilized by an acid environment, the sterilization effect is limited, and the traditional PAW is low in preparation efficiency and difficult to meet the current market demand.
Disclosure of Invention
In view of the above, it is necessary to provide an apparatus for efficiently preparing plasma-activated water, which is directed to the problem that the conventional plasma-activated water preparation cannot efficiently prepare plasma-activated water.
A plasma activated water preparation device comprises a gas-phase discharge assembly, a gas-liquid mixed-phase discharge assembly and a container, wherein the container is used for containing a solution to be treated; the gas-liquid mixed phase discharging assembly and the solution to be treated form a gas-liquid interface;
the gas-phase discharge assembly ionizes air to generate air plasma, and the air plasma is transmitted to the solution to be treated; and the gas-liquid mixed phase discharge assembly is ionized at the gas-liquid interface.
In one embodiment, the gas-phase discharge assembly comprises an air pumping piece, an insulating medium container and an electrode, wherein the insulating medium container is provided with an ionized gas outlet and an ionized gas inlet;
the electrode is inserted into the insulating medium container, the air inlet end of the air pumping piece is connected with the atmosphere, the air outlet end of the air pumping piece is connected with the air inlet of the insulating medium container, the electrode ionizes air to generate air plasma, and the air plasma is transmitted to the solution to be treated through the ionized air outlet.
In one embodiment, the gas phase discharge assembly further comprises a first driving power source connected to the electrode.
In one embodiment, the gas-phase discharge assembly further comprises a first porous bubble piece, and the first porous bubble piece is arranged at the ionized gas outlet of the insulating medium container.
In one embodiment, the gas-liquid mixed phase discharge assembly comprises an insulating piece and an electrode array, wherein the electrode array is arranged on the insulating piece, a gas-liquid interface is formed between the electrode array and the solution to be treated, and the electrode array is ionized at the gas-liquid interface.
In one embodiment, the gas-liquid mixed phase discharge assembly further comprises a second driving power supply, and the second driving power supply is connected with the electrode array.
In one embodiment, the gas-liquid mixed phase discharging assembly comprises a water pumping piece, a gas-liquid mixed phase ionization tank and a high-voltage electrode;
the water inlet of the water pumping part is connected with the container, the water outlet of the water pumping component is connected with the gas-liquid mixed phase ionization tank, and the gas-liquid mixed phase ionization tank is provided with a water outlet;
the water pumping assembly pumps the solution to be treated in the container to the gas-liquid mixed phase ionization tank, the high-voltage electrode and the solution to be treated in the gas-liquid mixed phase ionization tank form a gas-liquid interface, the high-voltage electrode is ionized at the gas-liquid interface, and the ionized solution flows back to the container through a water outlet of the gas-liquid mixed phase ionization tank.
In one embodiment, the plasma activated water preparation apparatus further comprises a container cover, a vent pipe and a baffle member, wherein the container cover is provided with a first air outlet and a second air outlet, one end of the baffle member is connected with the container cover, the other end of the baffle member is inserted into the container and is in contact with the solution to be treated, the first air outlet and the second air outlet are respectively arranged at two sides of the baffle member, the first air outlet is arranged at one side close to the gas-liquid mixed phase discharge assembly, and the second air outlet is arranged at one side far away from the gas-liquid mixed phase discharge assembly; one end of the breather pipe is connected with the first air outlet, and the other end of the breather pipe is inserted into the solution to be treated.
In one embodiment, the plasma activated water preparation apparatus further includes a second porous bubble member connected to an end of the aeration pipe into which the solution to be treated is inserted.
In one embodiment, the plasma-activated water preparation apparatus further comprises a ground electrode disposed at the bottom of the container.
The plasma activated water preparation device comprises a gas-phase discharge assembly, a gas-liquid mixed-phase discharge assembly and a container, wherein the container is filled with a solution to be treated, the gas-phase discharge assembly ionizes air to generate air plasmas, the air plasmas are transmitted to the solution to be treated and gradually dissolved in the solution to be treated, and H is generated in the solution to be treated + 、NO 2 - And NO 3 - (ii) a The gas-liquid mixed phase discharge assembly is ionized at a gas-liquid interface, and a large amount of H is generated in the liquid at the gas-liquid interface 2 O 2 . The scheme of the combination of gas-phase discharge and gas-liquid mixed-phase discharge simultaneously generates a large amount of gas plasma (including H) in the whole process + 、NO 2 - And NO 3 - Etc.) and a large amount of H 2 O 2 The preparation efficiency of the plasma activated water can be obviously improved.
Drawings
FIG. 1 is a schematic block diagram of a plasma-activated water production apparatus according to an embodiment;
FIG. 2 is a schematic structural view of a plasma-activated water production apparatus according to an embodiment;
FIG. 3 is a schematic view of a gas-liquid mixed-phase discharge assembly according to an embodiment;
FIG. 4 is a schematic view showing the construction of a plasma-activated water producing apparatus according to an example of application;
FIG. 5 is a schematic view showing the construction of a plasma-activated water producing apparatus according to another embodiment.
The reference numbers in the detailed description are as follows:
a gas-phase discharge module 100, a gas-liquid mixed-phase discharge module 200, and a container 300;
the device comprises a solution A to be treated, an air pumping piece 120, an insulating medium container 140, an electrode 160, a first driving power supply 170, a first porous bubble piece 180, an insulating piece 220, an electrode array 240, a water pumping piece 250, a gas-liquid mixed phase ionization tank 260, a high-voltage electrode 270, a second driving power supply 280, a container cover 400, a vent pipe 500 and a baffle piece 600;
the device comprises a first driving power supply 1, a second driving power supply 2, an air pump 3, a medium pipe 4, a high-voltage rod electrode 5, a high-voltage insulating plate 6, a metal needle electrode array 7, a first air outlet 8, a second air outlet 9, a bubble disc 10, a bubble stone 11, a baffle plate 12, a container 13, a solution to be treated 14, a first air plasma 15, a second air plasma 16, a medium-coated ground electrode 17, a water suction pump 18, a gas-liquid mixed phase ionization tank 19, a high-voltage rod electrode 20 and an insulating medium 21.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
As shown in fig. 1, the plasma activated water preparation apparatus of the present application includes a gas-phase discharge assembly 100, a gas-liquid mixed-phase discharge assembly 200, and a container 300, wherein the container 300 is used for containing a solution a to be treated; the gas-liquid mixed phase discharge assembly 200 and the solution A to be treated form a gas-liquid interface; the gas-phase discharge assembly 100 ionizes air to generate air plasma, and the air plasma is transmitted to the solution A to be treated; the gas-liquid mixed phase discharge assembly 200 is ionized at the gas-liquid interface.
The container 300 is used for containing a solution a to be treated. The shape, size, etc. of the container 300 can be set according to the requirements of actual conditions, and the container 300 can be made of an insulating material, such as glass, ceramic, etc. Further, the container 300 may include a container cover 400 so that the ionized air plasma may remain in the container 300 for a longer time, thereby being further sufficiently dissolved into the solution a to be treated. The solution A to be treated is aqueous solution, and air plasma can be dissolved to generate H after entering the aqueous solution + 、NO 2 - And NO 3 - . Further, an insulating medium-wrapped ground electrode may be disposed at the bottom of the container 300.
The gas phase discharge assembly 100 is used to ionize air, particularly by high voltage ionization. Specifically, high voltage may be applied to a high voltage rod electrode placed in air, which punctures the surrounding air, creating an air plasma. While discharging O 3 NO and NO 2 Enters the solution A to be treated under the action of the airflow, and the gas and air plasma generate H in the solution A to be treated + 、NO 2 - And NO 3 - 。
The gas-liquid mixed phase discharge assembly 200 forms a gas-liquid interface with the solution a to be treated, and the gas-liquid interface refers to an interface between air and liquid (the solution a to be treated), and can be simply understood as a contact interface between air and liquid. In practical applications, the gas-liquid mixed phase discharge assembly 200 may be very close to the solution a to be treated, but is not directly contacted with the solution a to be treated, i.e. there is a very fine gap between the gas-liquid mixed phase discharge assembly 200 and the solution a to be treated. The gas-liquid mixed phase discharge assembly 200 is ionized at the gas-liquid interface, that is, the ionized air generates a large amount of air plasma, the air plasma is gathered in the gas-liquid interface area (the area between the gas-liquid mixed phase discharge assembly 200 and the solution A to be treated), and a large amount of H is generated in the solution A to be treated at the gas-liquid interface while discharging 2 O 2 . Further, the method can be used for preparing a novel materialThe gas-liquid mixed phase discharge assembly 200 may include a discharge electrode array, and a plurality of electrodes are combined to form the electrode array, for example, a plurality of metal needle electrodes may form the metal needle electrode array.
The plasma activated water preparation device comprises a gas-phase discharge assembly 100, a gas-liquid mixed-phase discharge assembly 200 and a container 300, wherein the solution A to be treated is contained in the container 300, the gas-phase discharge assembly 100 ionizes air to generate air plasmas, the air plasmas are transmitted to the solution A to be treated and gradually dissolved into the solution A to be treated, and H is generated in the solution A to be treated + 、NO 2 - And NO 3 - (ii) a The gas-liquid mixed phase discharge assembly 200 is ionized at the gas-liquid interface, and a large amount of H is generated in the liquid at the gas-liquid interface 2 O 2 . The scheme of the combination of gas-phase discharge and gas-liquid mixed-phase discharge simultaneously generates a large amount of gas plasma (including H) in the whole process + 、NO 2 - And NO 3 - Etc.) and a large amount of H 2 O 2 The preparation efficiency of the plasma activated water can be obviously improved.
As shown in fig. 2, in one embodiment, the gas-phase discharge assembly 100 includes an air-extracting member 120, an insulating medium container 140 and an electrode 160, wherein the insulating medium container 140 is provided with an ionized gas outlet and an ionized gas inlet; the electrode is inserted into the insulating medium container 140, the air inlet end of the air pumping piece 120 is connected with the atmosphere, the air outlet end of the air pumping piece 120 is connected with the air inlet of the insulating medium container 140, the electrode ionizes air to generate air plasma, and the air plasma is transmitted to the solution A to be treated through the ionized air outlet of the insulating medium container 140.
The air pumping member 120 is used to pump air into the insulation medium container 140, and the air pumping member 120 may be specifically an air pump or the like, which may be an electric air pump or a manual air pump, and pumps air from the outside into the insulation medium container 140. The insulating medium container 140 is a container 300 made of an insulating material, such as quartz glass orCeramic, which may be embodied as a quartz glass tube or a ceramic tube; the insulating medium container 140 is used for providing a high-voltage ionization place, the insulating medium container 140 is provided with an ionized gas outlet and an ionized gas inlet, wherein the gas inlet is connected with the air pumping piece 120 and is used for receiving air conveyed by the air pumping piece 120, the ionized gas outlet is used for releasing ionized air plasma, when the device is applied, the ionized gas outlet is inserted into the solution A to be treated, and the air plasma is directly transmitted into the solution A to be treated. The electrode 160 is a metal electrode, for example, a metal high-voltage rod electrode, and the metal high-voltage rod electrode may be a corrosion-resistant and ablation-resistant metal rod such as a stainless steel rod or a tungsten rod; the electrode 160 is inserted into the insulating dielectric container 140, and when a high voltage is applied to the electrode, a high voltage ionization phenomenon occurs in the insulating dielectric container 140, and an air gap between the electrode and the inner wall of the insulating dielectric container 140 is broken down to generate air plasma and O is also generated at the same time of discharge 3 NO and NO 2 Enters the solution A to be treated under the action of the airflow, and the gas and air plasma generate H in the solution A to be treated + 、NO 2 - And NO 3 - 。
Further, the gas phase discharge assembly 100 further includes a first driving power source 170, and the first driving power source 170 is connected to the electrode 160. The first driving power source 170 is used to apply high voltage to the electrodes, and specifically, the first driving power source 170 is an ac high voltage power source or a pulse dc high voltage power source having an output frequency in a kHZ to tens of kHZ range and an output voltage amplitude in a kV to tens of kV range. In practical applications, the output voltage of the first driving power source 170 is selected in relation to the width of the air gap between the electrode 160 and the insulating dielectric container 140, which requires selecting a voltage sufficient to break down the air gap. Generally, the air gap is about several millimeters, and the larger the air gap is, the higher the voltage required for starting discharge is.
In one embodiment, the air pumping element 120 is an air pump, the insulating medium container 140 is a medium tube made of insulating materials such as quartz glass or ceramic, the electrode is a high-pressure rod electrode, and the air pump sucks ambient air into the medium tube and introduces the ambient air into the solution a to be treated through an ion gas outlet. High pressureThe rod electrode is connected with the high-voltage output end of the first driving power supply 170, and when a high enough alternating current high voltage or a pulse direct current high voltage is applied to the high-voltage rod electrode, an annular air gap between the high-voltage rod electrode and the medium tube is broken down to generate air plasma, and O is generated during discharging 3 NO and NO 2 Enters the solution A to be treated under the action of air flow to generate H in water + 、NO 2 - And NO 3 - 。
As shown in fig. 2, in one embodiment, the gas-phase discharge assembly 100 further comprises a first porous bubble member 180, and the first porous bubble member 180 is disposed at the ionized gas outlet of the insulating medium container 140.
The first porous bubble member 180 is used to increase the contact area of air and the solution a to be treated, so as to accelerate and enhance the dissolution of the plasma gas in the solution a to be treated. Specifically, when gas (including plasma) emerges through the porous bubble member, a large number of bubbles are formed, and the gas in the bubbles is sufficiently contacted with and dissolved in the solution a to be treated. The first porous bubble piece 180 may be a bubblestone.
As shown in fig. 2, in one embodiment, the gas-liquid mixed discharge assembly 200 includes an insulator 220 and an electrode array 240, wherein the electrode array 240 is disposed on the insulator 220, and the electrode array 240 is ionized at a gas-liquid interface.
The insulating member 220 is used to realize high voltage electrical insulation, thereby preventing accidents. The electrode array 240 is used for ionizing a gas-liquid interface in a high-voltage environment, the electrode array 240 may be a metal needle electrode array, high voltage is applied to the metal needle electrode array 240, air plasma is generated in a region (gas-liquid interface region) between a needle point of the metal needle electrode array and a liquid level of a solution A to be treated, and a large amount of H is generated in liquid at the gas-liquid interface during discharge 2 O 2 . Further, the electrode array 240 may be fixed to the insulating member 220.
As shown in fig. 2, in one embodiment, the gas-liquid mixed phase discharging assembly 200 further includes a second driving power source 280, and the second driving power source 280 is connected to the electrode array 240. The second driving power supply 280 is used to apply high voltage to the electrode array 240, and specifically, the second driving power supply 280 is an alternating current high voltage power supply or a pulse direct current high voltage power supply having an output frequency in a kHZ to tens of kHZ range and an output voltage amplitude in a kV to tens of kV range.
As shown in fig. 3, in one embodiment, the gas-liquid mixed phase discharging assembly 200 includes a water pumping member 250, a gas-liquid mixed phase ionization tank 260, and a high voltage electrode 270; a water inlet of the water pumping part 250 is connected with the container 300, a water outlet of the water pumping component is connected with the gas-liquid mixed phase ionization tank 260, and a water outlet is formed in the gas-liquid mixed phase ionization tank 260; the water pumping assembly pumps the solution A to be treated in the container 300 to the gas-liquid mixed phase ionization tank 260, the high-voltage electrode 270 and the solution A to be treated in the gas-liquid mixed phase ionization tank 260 form a gas-liquid interface, the high-voltage electrode 270 is ionized at the gas-liquid interface, and the ionized solution flows back to the container 300 through a water outlet of the gas-liquid mixed phase ionization tank 260.
In this embodiment, the gas-liquid mixed phase discharge assembly 200 adopts another structure, which specifically includes a water pumping member 250, a gas-liquid mixed phase ionization tank 260 and a high voltage electrode 270, wherein the water pumping member 250 is used for pumping the solution a to be treated in the container 300 into the gas-liquid mixed phase ionization tank 260, the high voltage electrode 270 and the solution a to be treated in the gas-liquid mixed phase ionization tank 260 form a gas-liquid interface, the high voltage electrode 270 is ionized on the gas-liquid interface under a high voltage environment to generate gas plasma, and discharge generates a large amount of H in the liquid at the gas-liquid interface at the same time 2 O 2 The ionized solution flows back to the container 300 through the water outlet of the gas-liquid mixed phase ionization tank 260. Specifically, the water pumping member 250 may be a water pump, the gas-liquid mixed phase ionization tank 260 may be a water tank having a water outlet at the bottom of the side far from the water inlet, the high voltage electrode 270 may be a high voltage rod electrode wrapped by an insulating medium, the water pump is powered on to pump the solution a to be treated in the container 300 into the water tank, and the water inflow is controlled to ensure that the distance between the page and the lower edge of the high voltage rod electrode is within a range of several millimeters, after a proper voltage is applied to the high voltage rod electrode, air plasma is generated at the liquid level (gas-liquid interface) of the water tank, and a large amount of H is generated in the liquid level of the water tank 2 O 2 The ionized solution is discharged to the outside through a water outletWithin the container 300.
As shown in fig. 2, in one embodiment, the plasma activated water preparation apparatus further includes a container cover 400, a vent pipe 500, and a baffle member 600, wherein the container cover 400 is provided with a first air outlet and a second air outlet, one end of the baffle member 600 is connected to the container cover 400, the other end of the baffle member 600 is inserted into the container 300 and is in contact with the solution a to be treated, the first air outlet and the second air outlet are respectively disposed at two sides of the baffle member 600, the first air outlet is disposed at a side close to the gas-liquid mixed phase discharge assembly 200, and the second air outlet is disposed at a side far from the gas-liquid mixed phase discharge assembly 200; one end of the vent pipe 500 is connected to the first outlet, and the other end of the vent pipe 500 is inserted into the solution a to be treated.
The container cover 400 is a cover provided at an upper end of the container 300 and is capable of forming a relatively sealed environment with the container 300 to retain air plasma generated by ionization in the container 300, so as to increase contact and dissolution time of the air plasma with the solution a to be treated, and further improve preparation efficiency of activated water. The snorkel 500 is a loop for forming a "backflow" to reflow the air plasma generated by the ionization to the solution a to be treated in the container 300 again for the second dissolution. The baffle member 600 is used for blocking air plasma generated by ionization from being directly discharged to the atmosphere through the second air outlet, one end of the baffle member 600 is connected with the container cover 400, specifically, the baffle member can be fixedly connected, and the other end of the baffle member 600 is inserted into (submerged into) the solution A to be treated (specifically, the position of 1-2 cm away from the bottom of the container 300), so that partial air (containing a large amount of air plasma) on the container 300 is blocked from being directly discharged to the atmosphere through the second air outlet. Further, a second porous bubble member 700 is further disposed at one end of the vent pipe 500, which is inserted into the solution a to be treated, and the function of the second porous bubble member 700 is similar to that of the first porous bubble member, which is not described herein again, and may also be a bubbled stone.
In practical application, in the discharging process, the gas introduced into the solution A to be treated and the gas generated above the liquid level enter the bubbled stone again through the first gas outlet → the pipeline → the second gas outlet for secondary dissolution, and finally the second gas outlet is discharged into the external environment. The baffle plate in the container 300 is used for reducing the direct discharge of the gas introduced into the solution A to be treated by the gas pump from the second gas outlet.
In order to explain the technical scheme of the plasma activated water preparation device in detail, the composition and the working function of the whole device are described in detail by using specific application examples.
As shown in fig. 4, the plasma activated water preparation device of the present application includes a first driving power supply 1, a second driving power supply 2, an air pump 3, a medium pipe 4, a high-voltage rod electrode 5, a bubble disk 10, a medium-wrapped ground electrode 17, a container 13, a solution to be treated 14, a high-voltage insulation board 6, a metal needle electrode array 7, a vent pipe, a baffle 12, a bubbled stone 11, a container cover, and a container cover, wherein a first air outlet 8 and a second air outlet 9 are provided, the first air outlet 8 is provided near a gas-liquid mixed phase discharge assembly, and the solution to be treated 14 is an aqueous solution. The whole working process is as follows:
the air pump 3 sucks ambient air into the medium pipe 4 and then leads the ambient air into the solution 14 to be treated through the bubble disk 10. The high-voltage rod electrode 5 is connected with the high-voltage output end of the first driving power supply 1, when enough high alternating-current high voltage or pulse direct-current high voltage is applied to the high-voltage rod electrode 5, an annular air gap between the high-voltage rod electrode 5 and the medium tube 4 is broken down, a first part of air plasma 15 is generated, and O is generated during discharging 3 NO and NO 2 The gas flow passes through the bubble tray 10 into the aqueous solution, and H +, NO 2-and NO 3-are formed in the water. Preferably, the first driving power supply 1 outputs an alternating current high-voltage power supply or a pulse direct current high-voltage power supply with the frequency ranging from kHZ to tens of kHZ and the amplitude ranging from kV to tens of kV; preferably, the medium tube 4 is a quartz glass tube or a ceramic tube; preferably, the high-voltage rod electrode 5 is a corrosion-resistant and ablation-resistant metal rod such as a stainless steel rod and a tungsten rod; the second driving power supply 2, the high-voltage insulating plate 6, the metal pin electrode array 7 and the medium-wrapped ground electrode 17 jointly form a gas-liquid mixed phase discharge system. Specifically, the high-voltage output end of the second driving power supply 2 is connected with a metal needle electrode array 7, the metal needle electrode array 7 is fixed on the upper cover plate of the water tank through a high-voltage insulating plate 6, and when the metal needle electrode array 7 is applied with enough heightA second partial air plasma 16 is generated in the region between the needle tip and the liquid surface, and the discharge simultaneously generates a large amount of H in the liquid at the gas-liquid interface 2 O 2 . In the discharging process, the gas introduced into the aqueous solution and the gas generated above the liquid level enter the air bubble stone 11 again through the first gas outlet 8 through the pipeline for secondary dissolution, and finally the gas is discharged into the external environment through the second gas outlet 9. A baffle 12 in the water tank is used to reduce the direct discharge of gas from the second gas outlet 9 that is introduced into the aqueous solution by the gas pump 3.
As shown in fig. 5, the plasma activated water preparation device of the present application includes a first driving power supply 1, a second driving power supply 2, an air pump 3, a medium pipe 4, a high-voltage rod electrode 5, a bubble disk 10, a medium-wrapped ground electrode 17, a container 13, a solution to be treated 14, a water pumping piece 18, a gas-liquid mixed phase ionization tank 19, a high-voltage rod electrode 20 wrapped by an insulating medium 21, a vent pipe, a baffle 12, a bubble stone 11, a container cover, and a container cover, wherein a first air outlet 8 and a second air outlet 9 are provided on the container cover, the first air outlet 8 is disposed near the gas-liquid mixed phase discharge assembly, and the solution to be treated 14 is an aqueous solution. The whole working process is as follows:
the air pump 3 sucks ambient air into the medium pipe 4 and then leads the ambient air into the solution 14 to be treated through the bubble disk 10. The high-voltage rod electrode 5 is connected with the high-voltage output end of the first driving power supply 1, when enough high alternating-current high voltage or pulse direct-current high voltage is applied to the high-voltage rod electrode 5, an annular air gap between the high-voltage rod electrode 5 and the medium tube 4 is broken down to generate air plasma, and O is generated during discharging 3 NO and NO 2 The gas flow passes through the bubble tray 10 into the aqueous solution, and H +, NO 2-and NO 3-are formed in the water. Preferably, the first driving power supply 1 outputs an alternating current high-voltage power supply or a pulse direct current high-voltage power supply with the frequency ranging from kHZ to tens of kHZ and the amplitude ranging from kV to tens of kV; preferably, the medium tube 4 is a quartz glass tube or a ceramic tube; preferably, the high-voltage rod electrode 5 is a corrosion-resistant and ablation-resistant metal rod such as a stainless steel rod and a tungsten rod; the second driving power supply 2, the high-voltage insulating plate 6, the metal pin electrode array 7 and the medium-wrapped ground electrode 17 jointly form a gas-liquid mixed phase discharge system. Specifically, the high voltage output of the second drive power supply 2The end of the high-voltage rod electrode is connected with a high-voltage rod electrode 20 wrapped by an insulating medium 32, a water pump 18 is started to pump the high-voltage rod electrode 20 wrapped by the insulating medium 21 from the upper part of the water solution surface in the container 13, the gas-liquid mixed phase ionization tank 19 and the upper part of the gas-liquid mixed phase ionization tank 19, the water inflow is controlled to ensure that the distance between the water surface and the lower edge of the high-voltage rod electrode 20 is within a range of several millimeters, after a proper voltage is applied, a second part of air plasma 16 is generated above the water tank liquid surface, and the discharged liquid flows back to the container 13 below. In the discharging process, the gas introduced into the aqueous solution and the gas generated above the liquid level enter the air bubble stone 11 again through the first gas outlet 8 through the pipeline for secondary dissolution, and finally the gas is discharged into the external environment through the second gas outlet 9. A baffle 12 in the water tank is used to reduce the direct discharge of gas from the second gas outlet 9 that is introduced into the aqueous solution by the gas pump 3.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A plasma activated water preparation device is characterized by comprising a gas-phase discharge assembly, a gas-liquid mixed-phase discharge assembly and a container, wherein the container is used for containing a solution to be treated; the gas-liquid mixed phase discharging assembly and the solution to be treated form a gas-liquid interface;
the gas-phase discharge assembly ionizes air to generate air plasma, and the air plasma is transmitted to the solution to be treated; and the gas-liquid mixed phase discharge assembly is ionized at the gas-liquid interface.
2. The device of claim 1, wherein the gas-phase discharge assembly comprises a gas pumping member, an insulating medium container and an electrode, wherein the insulating medium container is provided with an ionized gas outlet and an ionized gas inlet;
the electrode is inserted into the insulating medium container, the air inlet end of the air pumping piece is connected with the atmosphere, the air outlet end of the air pumping piece is connected with the air inlet of the insulating medium container, the electrode ionizes air to generate air plasma, and the air plasma is transmitted to the solution to be treated through the ionized air outlet.
3. The apparatus of claim 2, wherein the gas phase discharge assembly further comprises a first driving power source connected to the electrode.
4. The apparatus of claim 2 or 3, wherein the gas phase discharge assembly further comprises a first porous bubble piece disposed at the ionized gas outlet of the insulating medium container.
5. The apparatus of claim 1, wherein the gas-liquid mixed discharge assembly comprises an insulator and an electrode array, the electrode array is disposed on the insulator, the electrode array forms a gas-liquid interface with the solution to be treated, and the electrode array ionizes at the gas-liquid interface.
6. The apparatus of claim 5, wherein the gas-liquid mixed phase discharge assembly further comprises a second driving power source, and the second driving power source is connected with the electrode array.
7. The device of claim 1, wherein the gas-liquid mixed phase discharge assembly comprises a water pumping piece, a gas-liquid mixed phase ionization tank and a high-voltage electrode;
the water inlet of the water pumping part is connected with the container, the water outlet of the water pumping component is connected with the gas-liquid mixed phase ionization tank, and the gas-liquid mixed phase ionization tank is provided with a water outlet;
the water pumping assembly pumps the solution to be treated in the container to the gas-liquid mixed phase ionization tank, the high-voltage electrode and the solution to be treated in the gas-liquid mixed phase ionization tank form a gas-liquid interface, the high-voltage electrode is ionized at the gas-liquid interface, and the ionized solution flows back to the container through a water outlet of the gas-liquid mixed phase ionization tank.
8. The apparatus of claim 2, 5 or 7, further comprising a container cover, a vent pipe and a baffle member, wherein the container cover is provided with a first air outlet and a second air outlet, one end of the baffle member is connected with the container cover, the other end of the baffle member is inserted into the container and is in contact with the solution to be treated, the first air outlet and the second air outlet are respectively arranged at two sides of the baffle member, the first air outlet is arranged at one side close to the gas-liquid mixed phase discharge assembly, and the second air outlet is arranged at one side far away from the gas-liquid mixed phase discharge assembly; one end of the breather pipe is connected with the first air outlet, and the other end of the breather pipe is inserted into the solution to be treated.
9. The apparatus of claim 8, further comprising a second porous bubble member connected to an end of the vent tube into which the solution to be treated is inserted.
10. The apparatus of claim 1, further comprising a ground electrode disposed at a bottom of the container.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448422A (en) * | 2022-09-22 | 2022-12-09 | 西安电子科技大学 | Plasma-based liquid treatment system and method |
| CN115594257A (en) * | 2022-10-24 | 2023-01-13 | 山东大学（Cn） | Discharge nitrogen fixation device and method |
| CN115636473A (en) * | 2022-11-02 | 2023-01-24 | 山东大学 | Water treatment device and method based on plasma |
| CN116040749A (en) * | 2022-11-03 | 2023-05-02 | 山东大学 | DBD reaction device, equipment and method for preparing low-temperature plasma activated water |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060060464A1 (en) * | 2002-05-08 | 2006-03-23 | Chang Chak M T | Plasma formed in a fluid |
| JP2012228644A (en) * | 2011-04-26 | 2012-11-22 | Institute Of National Colleges Of Technology Japan | Liquid treating apparatus |
| CN104211137A (en) * | 2014-08-12 | 2014-12-17 | 西安交通大学 | Plasma water treatment device |
| CN206295464U (en) * | 2016-08-29 | 2017-07-04 | 荣烜曼 | A kind of plasma-activated water is used for the device of clinical sterilizing |
| WO2018194207A1 (en) * | 2017-04-21 | 2018-10-25 | 광운대학교 산학협력단 | Plasma-treated water having anticancer activity, and preparation method therefor |
| WO2018205862A1 (en) * | 2017-05-08 | 2018-11-15 | 程久华 | Chemical liquid treatment method and device using plasma |
| CN111511088A (en) * | 2020-04-29 | 2020-08-07 | 西安交通大学 | Preparation method, device and application of alkaline plasma activating solution |
| CN111592070A (en) * | 2019-02-20 | 2020-08-28 | 夏普株式会社 | Liquid treatment device |
| CN112125374A (en) * | 2020-09-14 | 2020-12-25 | 西安交通大学 | Method and device for preserving plasma activated water and method for preparing finished product |
| CN113993262A (en) * | 2021-11-12 | 2022-01-28 | 珠海格力电器股份有限公司 | Plasma activated water generating device, control method thereof and cleaning equipment |
| CN114345154A (en) * | 2022-02-09 | 2022-04-15 | 珠海格力电器股份有限公司 | Plasma activated water preparation device |
| CN217808834U (en) * | 2022-06-07 | 2022-11-15 | 珠海格力电器股份有限公司 | Plasma activated water preparation device |
-
2022
- 2022-06-07 CN CN202210634345.7A patent/CN114890499A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060060464A1 (en) * | 2002-05-08 | 2006-03-23 | Chang Chak M T | Plasma formed in a fluid |
| JP2012228644A (en) * | 2011-04-26 | 2012-11-22 | Institute Of National Colleges Of Technology Japan | Liquid treating apparatus |
| CN104211137A (en) * | 2014-08-12 | 2014-12-17 | 西安交通大学 | Plasma water treatment device |
| CN206295464U (en) * | 2016-08-29 | 2017-07-04 | 荣烜曼 | A kind of plasma-activated water is used for the device of clinical sterilizing |
| WO2018194207A1 (en) * | 2017-04-21 | 2018-10-25 | 광운대학교 산학협력단 | Plasma-treated water having anticancer activity, and preparation method therefor |
| WO2018205862A1 (en) * | 2017-05-08 | 2018-11-15 | 程久华 | Chemical liquid treatment method and device using plasma |
| CN111592070A (en) * | 2019-02-20 | 2020-08-28 | 夏普株式会社 | Liquid treatment device |
| CN111511088A (en) * | 2020-04-29 | 2020-08-07 | 西安交通大学 | Preparation method, device and application of alkaline plasma activating solution |
| CN112125374A (en) * | 2020-09-14 | 2020-12-25 | 西安交通大学 | Method and device for preserving plasma activated water and method for preparing finished product |
| CN113993262A (en) * | 2021-11-12 | 2022-01-28 | 珠海格力电器股份有限公司 | Plasma activated water generating device, control method thereof and cleaning equipment |
| CN114345154A (en) * | 2022-02-09 | 2022-04-15 | 珠海格力电器股份有限公司 | Plasma activated water preparation device |
| CN217808834U (en) * | 2022-06-07 | 2022-11-15 | 珠海格力电器股份有限公司 | Plasma activated water preparation device |
Non-Patent Citations (3)
| Title |
|---|
| LUKES, P ET AL.: "Aqueous-phase chemistry and bactericidal effects from an air discharge plasma in contact with water: evidence for the formation of peroxynitrite through a pseudo-second-order post-discharge reaction of H2O2 and HNO2", 《 PLASMA SOURCES SCIENCE & TECHNOLOGY》, vol. 23, no. 1, 1 February 2014 (2014-02-01), pages 15019, XP020257151, DOI: 10.1088/0963-0252/23/1/015019 * |
| 张延宗等: "非平衡等离子体水处理技术研究进展", 《化工进展》, vol. 26, no. 7, 31 July 2007 (2007-07-31), pages 957 - 963 * |
| 王学扬;齐志华;宋颖;刘东平;: "等离子体放电活化生理盐水杀菌应用研究", 物理学报, no. 12, 6 May 2016 (2016-05-06), pages 86 - 91 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448422A (en) * | 2022-09-22 | 2022-12-09 | 西安电子科技大学 | Plasma-based liquid treatment system and method |
| CN115448422B (en) * | 2022-09-22 | 2023-09-22 | 西安电子科技大学 | Plasma-based liquid treatment system and method |
| CN115594257A (en) * | 2022-10-24 | 2023-01-13 | 山东大学（Cn） | Discharge nitrogen fixation device and method |
| CN115636473A (en) * | 2022-11-02 | 2023-01-24 | 山东大学 | Water treatment device and method based on plasma |
| CN116040749A (en) * | 2022-11-03 | 2023-05-02 | 山东大学 | DBD reaction device, equipment and method for preparing low-temperature plasma activated water |
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