CN110693692A - Plasma activated mist preparation device - Google Patents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H33/00—Bathing devices for special therapeutic or hygienic purposes
- A61H33/02—Bathing devices for use with gas-containing liquid, or liquid in which gas is led or generated, e.g. carbon dioxide baths
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/001—Particle size control
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/005—Sprayers or atomisers specially adapted for therapeutic purposes using ultrasonics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5058—Sensors or detectors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5058—Sensors or detectors
- A61H2201/5089—Gas sensors, e.g. for oxygen or CO2
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Abstract
The invention discloses a plasma activated mist preparation device, which belongs to the field of disinfection treatment and comprises the following components: the device comprises a liquid atomization module, a gas output module, a high-voltage power supply and a gas ionization atomization module; the liquid atomization module is used for atomizing liquid and then introducing the atomized liquid into the gas ionization atomization module; the gas output module is used for providing working gas for the gas ionization and atomization module; and the gas ionization atomization module ionizes the working gas under the action of the high-voltage power supply to generate plasma active particles, and the plasma active particles are adsorbed on the atomized liquid drops to form plasma activated mist. The gas-phase plasma active particles are very easy to be absorbed by small liquid drops and attached to the surface to form plasma activated mist, and meanwhile, the plasma activated mist can rapidly absorb ozone, oxygen atoms and the like to generate H2O2And OH and other liquid phase active particles, thereby generating high-density gas-liquid mixed phase active particles, obviously improving the activation efficiency and reducingThe concentration of ozone.
Description
Technical Field
The invention belongs to the field of disinfection treatment, and particularly relates to a plasma activated mist preparation device.
Background
Plasma is a macroscopically electrically neutral substance, which contains a large number of charged particles and neutral particles, and is a fourth substance in the universe except for solid, liquid and gas. The plasma can be classified into three types, a high temperature plasma, a thermal plasma, and a low temperature plasma, according to the relationship between the electron temperature and the ion temperature in the plasma. When the electron temperature is completely equal to the ion temperature, the plasma is high-temperature plasma, and the overall temperature of the plasma can reach 10 DEG9K; thermal plasma when the electron temperature is only locally equal to the ion temperature, in which case the plasma temperature is 103K～104K; when the electron temperature is far lower than the ion temperature, the plasma is low-temperature plasma, and the plasma temperature is close to the room temperature and can be generated at normal temperature and normal pressure, so the plasma is also called atmospheric pressure non-equilibrium plasma. The principles and applications of atmospheric pressure non-equilibrium plasmas are difficult to develop in early studies, limited by experimental conditions and diagnostic techniques. With the improvement of the technological level in the last decade, more and more research is focused on the research and application of atmospheric pressure non-equilibrium plasma. Researches find that the atmospheric pressure non-equilibrium plasma contains a large amount of high-energy electrons and ions, active free radicals, ultraviolet rays and the like, and has wide application prospect in the medical field.
However, the conventional atmospheric pressure plasma sterilization apparatus generally has a problem that generated plasma active particles excite oxygen to generate high concentration ozone, and the mechanism is as follows: o is2+e-→2O·+e-；O·+O2+M→O3+ M (M is background gas), low concentration ozone is non-toxic and safe and has bactericidal and disinfectant effects, but when the concentration is higher than 1.5ppm, it can cause harm to respiratory tract and mucosal tissues. Conventional plasma devices can produce up to 100ppm ozone, which is not only harmful to health, but also consumes large amounts of plasma reactive species.
On the other hand, there are two main methods for applying plasma in the field of wound therapy: directly treating the wound or applying the liquid as a carrier of plasma active particles to the wound. When the plasma active ingredient is directly treated, the plasma active ingredient is firstly slowly dissolved in tissue fluid and then interacts with tissue cells, and the treatment method has the advantages that the action depth of the gaseous active particle is limited, the treatment area is extremely small, and the effect is slow; when the liquid is used as a carrier, the plasma is firstly introduced into the liquid, although the action depth of plasma active particles can be ensured, the active ingredients of the liquid-phase plasma are quickly attenuated, and the treatment effect is weakened.
In general, the existing atmospheric pressure plasma generating device has the problems that the concentration of the generated ozone is too high, and the depth of action and the plasma activity cannot be considered at the same time when the device is applied.
Disclosure of Invention
In view of the above defects or improvement requirements of the prior art, the present invention provides a plasma activated mist preparation device, which aims to solve the technical problems that the existing atmospheric pressure plasma generation device generates too high ozone concentration and cannot give consideration to both the action depth and the plasma concentration in practical application.
In order to achieve the above object, the present invention provides a plasma activated mist producing apparatus comprising: the device comprises a liquid atomization module, a gas output module, a high-voltage power supply and a gas ionization atomization module;
the liquid atomization module comprises an ultrasonic atomizer, a liquid storage tank and a fan; the ultrasonic atomizer and the fan are respectively positioned at the bottom and the top of the closed container, the top end of the closed container is provided with an opening which is connected with an outlet of the liquid storage tank, and a mist outlet is arranged on the side of the closed container;
the gas output module comprises a gas cylinder and a flow meter; the outlet of the gas cylinder is connected with the inlet of the flowmeter;
the gas ionization atomization module comprises a quartz glass tube and a high-voltage electrode positioned in the quartz glass tube; an air inlet and a mist inlet are formed in the side of the quartz glass tube; the air inlet is connected with an outlet of the flowmeter, and the mist inlet is connected with the mist outlet; the high-voltage electrode is connected with the high-voltage power supply;
the liquid atomization module is used for introducing atomized liquid into the gas ionization atomization module;
the gas output module is used for providing working gas for the gas ionization and atomization module;
the gas ionization atomization module is used for ionizing the working gas under the action of the high-voltage power supply to generate plasma active particles, and the plasma active particles are adsorbed on atomized liquid drops to form plasma activated mist.
Further, the preparation device also comprises a detection module; the detection module comprises an ozone sensor and a PH sensor;
the ozone sensor is used for detecting the concentration of ozone around the gas ionization and atomization module;
the PH sensor is used for detecting the PH value of the plasma activated mist.
Further, the first structure of the gas ionization and atomization module is as follows: the upper half part of the quartz glass tube is of a solid structure, and the lower half part of the quartz glass tube is of a hollow structure; four through holes with the same size are symmetrically distributed on the upper half part, and the two through holes distributed in a diagonal line are respectively inserted into a tungsten copper rod with one end in a pointed structure and are respectively introduced with working gas; one end of the tip of the tungsten copper rod faces downwards, and the other end of the tip of the tungsten copper rod is connected with the high-voltage power supply; the other two through holes are respectively filled with fog.
Further, the working gas that can be used in the first structure includes argon, helium, and their respective mixtures with oxygen.
Further, the second structure of the gas ionization and atomization module is as follows: the quartz glass tube is of a hollow structure, a tungsten copper rod with a round head at one end is inserted into the quartz glass tube, and a mixture of working gas and mist is introduced into the quartz glass tube; one end of the round head of the tungsten copper rod faces downwards, and the other end of the round head of the tungsten copper rod is connected with the high-voltage power supply; the outer wall of the quartz glass tube is sleeved with a copper sheet, the top end of the copper sheet is located below the top end of the tungsten copper rod, and the bottom end of the copper sheet is grounded.
Further, the working gas used in the second structure may be air, in addition to argon, helium, or their respective mixtures with oxygen, to reduce the cost.
Further, the third structure of the gas ionization and atomization module is as follows: the quartz glass tube is of a hollow structure, a first hollow structure and a second hollow structure which are distributed up and down are nested in the quartz glass tube, and a third hollow structure is nested in the first hollow structure; working gas is introduced into the opening at the side of the first hollow structure, the bottom of the first hollow structure is opened in a long-neck funnel mode, and the long-neck part of the first hollow structure extends into the second hollow structure; the third hollow structure is inserted into a tungsten copper rod with one end of a pointed structure; one end of the tip of the tungsten copper rod faces downwards and extends into the long neck part of the funnel at the bottom end of the first hollow structure, and the other end of the tip of the tungsten copper rod is connected with the high-voltage power supply; and mist is introduced into the opening at the side of the second hollow structure.
Furthermore, the high-voltage power supply adopts a medium-low frequency alternating-current high-voltage power supply, the output frequency of the power supply is 10kHZ, the output voltage is 0-30 kV, and the output power is 0-500W.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
(1) the plasma generation module is combined with the liquid atomization module, the liquid is atomized to form micron-sized small liquid drops, the liquid has a large surface area-to-volume ratio, gas-phase plasma active particles are very easy to be absorbed by the small liquid drops and are attached to the surface to form plasma activated mist, and meanwhile, the plasma activated mist can rapidly absorb ozone, oxygen atoms and the like to generate H2O2And OH and other liquid phase active particles, thereby generating high-density gas-liquid mixed phase active particles, obviously improving the activation efficiency and reducing the ozone concentration.
(2) The particle size of the atomized liquid reaches the micron level, the concentration of the atomized liquid can be adjusted, the particle concentration can be adjusted according to different liquid materials when the atomized liquid is used, and the problem that a high-voltage electrode cannot discharge due to overhigh concentration or overlarge liquid drops is solved. Therefore, the selection of the atomization material is diversified, for example, water can be selected for daily skin disinfection, and corresponding oil or medicinal solution can be selected for promoting skin wound healing or transdermal treatment.
(3) The device can detect the concentration of ozone in the air around the device and the pH value of the plasma activated mist in real time, and a user can adjust the mist output and the flow of working gas according to the real-time detection result, so that the high-concentration plasma activated mist is obtained; meanwhile, when the activating liquid generated by the device is discharged in a mist form, the coverage area is increased and more uniform, the utilization rate of the activating liquid is increased, and the cost is reduced.
(4) The device integrates production and use, realizes production as soon as opening, does not need secondary transportation and storage processes, not only ensures the concentration of plasma active particles, but also reduces the cost in the use link; meanwhile, the tail end of the device is designed as an open source, and a user can connect catheters with different structures according to actual needs so as to meet different requirements.
Drawings
FIG. 1 is a structural view of a plasma activated mist producing apparatus according to the present invention;
FIG. 2 is a first configuration of a gas ionization atomization module;
FIG. 3 is a second configuration of a gas ionization atomization module;
FIG. 4 is a third structure of a gas ionization and atomization module
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
1 is quartz glass tube, 2 is ozone sensor, 3 is the PH sensor, 4 is ultrasonic atomization ware, 5 is the liquid reserve tank, 6 is the fan, 7 is the gas cylinder, 8 is the flowmeter, 9 is high voltage power supply.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention 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 the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the present invention provides a plasma activated mist preparing apparatus, comprising: the device comprises a liquid atomization module, a gas output module, a high-voltage power supply and a gas ionization atomization module; the liquid atomization module comprises an ultrasonic atomizer 4, a liquid storage tank 5 and a fan 6; the ultrasonic atomizer 4 and the fan 6 are respectively positioned at the bottom and the top of the closed container, the top end of the closed container is provided with an opening which is connected with an outlet of the liquid storage tank 5, and a mist outlet is arranged on the side of the closed container; the gas output module comprises a gas bottle 7 and a flow meter 8; the outlet of the gas cylinder 7 is connected with the inlet of the flowmeter 8; the gas ionization atomization module comprises a quartz glass tube 1 and a high-voltage electrode positioned in the quartz glass tube; an air inlet and a fog inlet are arranged on the side of the quartz glass tube; the air inlet is connected with an outlet of the flowmeter 8, and the mist inlet is connected with the mist outlet; the high-voltage electrode is connected with a high-voltage power supply 9; the liquid atomization module is used for atomizing liquid and then introducing the atomized liquid into the gas ionization atomization module; the gas output module is used for providing working gas for the gas ionization and atomization module; and the gas ionization atomization module is used for ionizing the working gas under the action of the high-voltage power supply to generate plasma active particles, and the plasma active particles are adsorbed on the atomized liquid drops to form plasma activated mist.
Wherein, liquid atomization module can add water, oil or other medicament solutions according to actual demand, and the particle diameter median that produces when water is the material is 3 mu m, and particle diameter median 4 mu m (specifically depending on the consistency of oil) when oil is the material, and the during operation user can increase or reduce fan intensity according to the condition that the detection module fed back to control outside air and particle mixing degree, adjust the concentration of fog, guarantee that the activation process goes on smoothly. The liquid is atomized to form micron-sized small liquid drops, the surface area to volume ratio is large, and gas-phase plasma active particles are easily absorbed by the small liquid drops and are attached to the surface to form plasma activated mist. Meanwhile, the liquid drops of the plasma activated mist can rapidly absorb ozone, oxygen atoms and the like to generate H2O2And liquid phase active particles such as OH, thereby producing high density gas-liquid mixed phase active particles. The mechanism is as follows:
H2O+e-→H′+HO+e-
H′+HO′2→H2O2
OH′+OH′→H2O2
therefore, the plasma activated mist not only can carry high-concentration plasma active particles, but also can be uniformly enriched on the surface of the wound in a large area, and can quickly interact with tissue cells, so that the wound healing speed is obviously improved.
The device can also comprise a detection module; the detection module comprises an ozone sensor 2 and a PH sensor 3; the ozone sensor 2 is arranged on the side of the gas ionization and atomization module and used for detecting the concentration of ozone around the gas ionization and atomization module; the range of the ozone detector is 0-10ppm, the response precision is less than +/-3% of the reading, the response time is less than 1 second, the working temperature range is-20-50 ℃, the set alarm concentration is 1ppm, namely the indicator light is turned off when the ozone concentration is 0-1ppm, the indicator light is turned on when the ozone concentration is more than 1ppm, and at the moment, the concentration of the atomization module or the flow of the gas module is increased by a user according to the reality until the indicator light is turned off. The PH sensor 3 is arranged below an outlet of the gas ionization atomization module and used for detecting the PH value of plasma activated mist, the range of the PH detector is 0-14PH, the measurement precision is +/-0.02 PH, the working temperature range is 0-80 ℃, a user selects a reasonable PH range according to different characteristics of atomized liquid, and when the monitored out-of-range PH range is monitored, the user adjusts the concentration of the atomization module according to actual conditions to enable the atomization module to be stabilized in a normal range.
The gas ionization atomization module of the invention has three structures:
the first structure is as follows: the upper half part of the quartz glass tube is of a solid structure, and the lower half part of the quartz glass tube is of a hollow structure; four through holes with the same size are symmetrically distributed on the upper half part, and the two through holes distributed in a diagonal line are respectively inserted into a tungsten copper rod with one end in a pointed structure and are respectively introduced with working gas; one end of the tip of the tungsten copper rod faces downwards, and the other end of the tip of the tungsten copper rod is connected with a high-voltage power supply; the other two through holes are respectively filled with fog. Specifically, as shown in fig. 2, the whole quartz glass tube has a length of 120mm, an outer diameter of 30mm, the upper half is a solid structure with a length of 60mm and an outer diameter of 30mm, the four holes have a diameter of 10mm and a length of 60mm, and the centers of the four holes respectively fall on four vertexes of an inscribed square of a concentric circle with an upper surface diameter of 16 mm; the diameter of the tungsten copper rod is 4mm, and the length of the tungsten copper rod is 60 mm; the lower half part is a hollow structure with the length of 60mm, the outer diameter of 30mm and the inner diameter of 28 mm. The high-voltage power supply is connected with two tungsten copper needles to form a parallel high-voltage electrode, the outlet of the flowmeter 8 is connected with a silicon rubber tube with the diameter of 20mm, and then is connected with two silicon rubber tubes with the diameter of 10mm through a one-to-two adapter and is respectively connected with two holes inserted with tungsten copper rods to realize air supply; the fog outlet of the liquid atomization module is connected with a silicone rubber tube with the diameter of 20mm and then connected with two silicone rubber tubes with the diameter of 10mm through a one-to-two adapter, and the two silicone rubber tubes are respectively connected with the other two holes to realize fog delivery. At this time, the working gas may be argon, helium, and their respective mixtures with oxygen air; when the first structure is used as a gas ionization and atomization module, the requirement of large-area treatment can be met.
The second structure is as follows: the quartz glass tube is of a hollow structure, a tungsten copper rod with a round head at one end is inserted, and a mixture of working gas and mist is introduced; one end of the round head of the tungsten copper rod faces downwards, and the other end of the round head of the tungsten copper rod is connected with a high-voltage power supply; the outer wall of the quartz glass tube is sleeved with a copper sheet, the top end of the copper sheet is positioned below the top end of the tungsten copper rod, and the bottom end of the copper sheet is grounded. Specifically, as shown in FIG. 3, the quartz glass tube was 100mm long, 20mm in inner diameter, and 22mm in outer diameter; the tungsten copper rod with one round head at one end is 15mm in diameter and 80mm in length, the round head is downwards arranged on the central axis of the quartz glass tube at a position which is 10mm away from the top end of the tube, a copper sheet with the thickness of 1mm and the height of 70mm is sleeved on the outer wall of the quartz glass tube, the top end of the copper sheet is 15mm away from the top end of the glass tube, and the bottom end of the copper sheet is grounded; the high-voltage power supply is connected with the tungsten copper needle to form a high-voltage electrode; the outlet of the flowmeter 8 is connected with a silicone rubber tube with the diameter of 20mm, a mist outlet of the liquid atomization module is connected with a silicone rubber tube with the diameter of 20mm, the two tubes are connected with the silicone rubber tube with the diameter of 20mm through two-in-one adapter, and the tube end is connected with the upper port of the quartz glass tube to realize mist mixing. The ionization capacity of this kind of structure is stronger, and working gas except with when using first kind structure the same, can also be pure air, consequently when using second kind structure to make gas ionization atomizing module, can satisfy the low-cost requirement that working gas is the air.
The third structure is: the quartz glass tube is of a hollow structure, a first hollow structure and a second hollow structure which are distributed up and down are nested in the quartz glass tube, and a third hollow structure is nested in the first hollow structure; working gas is introduced into the side opening of the first hollow structure, the bottom of the first hollow structure is opened in a long-neck funnel mode, and the long-neck part extends into the second hollow structure; a tungsten copper rod with a pointed end structure at one end is inserted into the third hollow structure; one end of the tip of the tungsten copper rod is downward and extends into the long neck part of the funnel at the bottom end of the first hollow structure, and the other end of the tip of the tungsten copper rod is connected with a high-voltage power supply; mist is introduced into the opening at the side of the second hollow structure. Specifically, as shown in fig. 4, the quartz glass tube has a length of 50mm and a diameter of 10mm, the first hollow structure has an outer diameter of 8mm and a height of 30mm, and a ring width of 2mm, the lateral opening has a diameter of 3mm, the upper diameter of the funnel is 8mm, and the lower diameter of the funnel has a height of 3mm and a ring width of 5mm 2 mm; the diameter of the third hollow structure is 3mm, the height of the third hollow structure is 15mm, the length of the tungsten copper rod is 40mm, and the diameter of the tungsten copper rod is 2 mm; the diameter of the second hollow structure is 9mm, the height of the second hollow structure is 12mm, the ring width of the second hollow structure is 1.5mm, and the diameter of an opening on the upper side of the second hollow structure is 2 mm; the upper caliber of the funnel is 9mm, the lower caliber is 5mm, the height is 3mm, and the ring width is 1.5 mm; the structure can meet the requirement of high-density accurate treatment of plasma activated mist. The above structural dimensions are merely preferred embodiments of the present invention and are not intended to limit the present invention.
The high-voltage power supply adopts a medium-low frequency alternating-current high-voltage power supply, the output frequency of the power supply is 10kHZ, the output voltage is 0-30 kV, the output power is 0-500W, the knob is slowly turned after being turned on to increase the voltage, when the voltage is sufficiently high, the working gas can be punctured to discharge, a large amount of plasma active particles generated by the discharge and the introduced micron-sized droplets can fully react, and the droplets can become activated mist rich in peroxide radicals, nitrate radicals, active oxygen atoms and active nitrogen atoms. The whole device can continuously work for 12 hours, and the temperature is 30 +/-10 ℃ during normal work.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A plasma activated mist production apparatus, characterized by comprising: the device comprises a liquid atomization module, a gas output module, a high-voltage power supply and a gas ionization atomization module;
the liquid atomization module comprises an ultrasonic atomizer (4), a liquid storage tank (5) and a fan (6); the ultrasonic atomizer (4) and the fan (6) are respectively positioned at the bottom and the top of the closed container, the top end of the closed container is provided with an opening which is connected with an outlet of the liquid storage tank (5), and a mist outlet is arranged on the side of the closed container;
the gas output module comprises a gas bottle (7) and a flow meter (8); the outlet of the gas cylinder (7) is connected with the inlet of the flowmeter (8);
the gas ionization atomization module comprises a quartz glass tube (1) and a high-voltage electrode positioned in the quartz glass tube; an air inlet and a mist inlet are formed in the side of the quartz glass tube; the air inlet is connected with an outlet of the flowmeter (8), and the mist inlet is connected with the mist outlet; the high-voltage electrode is connected with the high-voltage power supply (9);
the liquid atomization module is used for introducing atomized liquid into the gas ionization atomization module;
the gas output module is used for providing working gas for the gas ionization and atomization module;
the gas ionization atomization module is used for ionizing the working gas under the action of the high-voltage power supply to generate plasma active particles, and the plasma active particles are adsorbed on atomized liquid drops to form plasma activated mist.
2. The plasma-activated mist production apparatus according to claim 1, wherein the production apparatus further comprises a detection module; the detection module comprises an ozone sensor (2) and a PH sensor (3);
the ozone sensor (2) is used for detecting the concentration of ozone around the gas ionization and atomization module;
the PH sensor (3) is used for detecting the PH value of the plasma activated mist.
3. The plasma activated mist preparation apparatus as claimed in claim 1 or 2, wherein the gas ionization and atomization module is configured to: the upper half part of the quartz glass tube is of a solid structure, and the lower half part of the quartz glass tube is of a hollow structure; four through holes with the same size are symmetrically distributed on the upper half part, and the two through holes distributed in a diagonal line are respectively inserted into a tungsten copper rod with one end in a pointed structure and are respectively introduced with working gas; one end of the tip of the tungsten copper rod faces downwards, and the other end of the tip of the tungsten copper rod is connected with the high-voltage power supply; the other two through holes are respectively filled with fog.
4. A plasma activated mist producing apparatus as claimed in claim 3, wherein the working gas comprises argon, helium and mixtures thereof with oxygen.
5. The plasma activated mist preparation apparatus as claimed in claim 1 or 2, wherein the gas ionization and atomization module is configured to: the quartz glass tube is of a hollow structure, a tungsten copper rod with a round head at one end is inserted into the quartz glass tube, and a mixture of working gas and mist is introduced into the quartz glass tube; one end of the round head of the tungsten copper rod faces downwards, and the other end of the round head of the tungsten copper rod is connected with the high-voltage power supply; the outer wall of the quartz glass tube is sleeved with a copper sheet, the top end of the copper sheet is located below the top end of the tungsten copper rod, and the bottom end of the copper sheet is grounded.
6. The plasma-activated mist production apparatus of claim 5, wherein the working gas comprises air.
7. The plasma activated mist preparation apparatus as claimed in claim 1 or 2, wherein the gas ionization and atomization module is configured to: the quartz glass tube is of a hollow structure, a first hollow structure and a second hollow structure which are distributed up and down are nested in the quartz glass tube, and a third hollow structure is nested in the first hollow structure; working gas is introduced into the opening at the side of the first hollow structure, the bottom of the first hollow structure is opened in a long-neck funnel mode, and the long-neck part of the first hollow structure extends into the second hollow structure; the third hollow structure is inserted into a tungsten copper rod with one end of a pointed structure; one end of the tip of the tungsten copper rod faces downwards and extends into the long neck part of the funnel at the bottom end of the first hollow structure, and the other end of the tip of the tungsten copper rod is connected with the high-voltage power supply; and mist is introduced into the opening at the side of the second hollow structure.
8. The plasma activated mist preparation device as claimed in any one of claims 1 to 7, wherein the high voltage power supply is a medium-low frequency alternating current high voltage power supply, the output frequency of the power supply is 10kHz, the output voltage is 0-30 kV, and the output power is 0-500W.
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| CN201910953924.6A CN110693692A (en) | 2019-10-09 | 2019-10-09 | Plasma activated mist preparation device |
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Cited By (4)
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| CN112165759A (en) * | 2020-10-29 | 2021-01-01 | 国网重庆市电力公司电力科学研究院 | Plasma jet system using ultrasonic atomization device |
| CN113813425A (en) * | 2021-09-26 | 2021-12-21 | 大连赛纳科技有限公司 | Atmospheric pressure atomization plasma efficient sterilization device and method |
| CN114424896A (en) * | 2021-12-28 | 2022-05-03 | 深圳高性能医疗器械国家研究院有限公司 | Plasma hand washing instrument |
| CN115154626A (en) * | 2022-07-07 | 2022-10-11 | 中国科学院苏州生物医学工程技术研究所 | Low-temperature plasma sterilization and purification device |
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