CN115643665A - Treatment system and method for plasma in-situ activation of water mist - Google Patents
Treatment system and method for plasma in-situ activation of water mist Download PDFInfo
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Abstract
The invention discloses a processing system and a method for plasma in-situ activated water mist.A plasma jet is formed in a first medium pipe, when high-speed plasma jet flows through a throat part, the liquid to be processed in a first container is sucked into the throat part by local pressure difference, the liquid to be processed forms small liquid drops under the impact of the high-speed plasma jet, and a large amount of short-life free radicals, ions and solvated electrons in the plasma jet rapidly act on the liquid drops near the surfaces of the liquid drops to realize the plasma in-situ activated water mist; through control conversion valve, the flow direction of the plasma jet is artificially switched, and the plasma jet can be directly sprayed out in the form of activated water mist from the free end of the second pipe part, namely the plasma jet is ready to use, the plasma jet can also enter the second container through the second pipe and further treat the liquid to be treated in the second container, the liquid to be treated flows into the first container again, and is repeatedly sucked by the throat part and activated in situ, so that the cyclic treatment of the plasma activated water mist is realized.
Description
Technical Field
The invention relates to the technical field of plasma application, in particular to a treatment system and a treatment method for plasma in-situ activated water mist.
Background
In recent years, the interaction of low temperature plasma with liquid has been widely studied to generate chemical activity in liquid phase using active particles in gas phase plasma. Plasma activated water has shown great potential as an antimicrobial agent in disinfection, wound healing or food applications.
The existing method for preparing the plasma activated water generally directly impacts gas-phase plasma on a water surface, active particles cannot be uniformly transferred to act on liquid to be treated in the mode, the plasma water activation efficiency is low, the use method is single, and the treated liquid is usually applied after the active particles fully act on the liquid to be treated.
Therefore, in light of the current market demand and the existing technical defects, it is urgently needed to develop an activation treatment technology which can improve the activation efficiency and can simultaneously realize two application modes of activated water and activated water mist.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the present invention aims to provide a processing system and a processing method for plasma in-situ activation of water mist, so as to solve the problems of low plasma activation efficiency, single application mode, etc. in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present application provides a processing system for in-situ activation of water mist by plasma, which includes a plasma generation module, a first medium pipe, and a liquid storage module;
the first medium pipe is of a Venturi tube structure and comprises a first pipe part, a throat part and a second pipe part which are connected in sequence;
the plasma generation module is used for forming plasma jet in the first medium pipe, and the plasma jet enters the second pipe part from the first pipe part through the throat part under the driving of air pressure;
the liquid storage module comprises a first container and a second container, the first container is connected with the second container through a communication pipeline, at least one exhaust part is further formed in the liquid storage module, the throat part is connected with a first conduit extending into the first container, the second conduit part is connected with a second conduit extending into the second container, and a conversion valve used for controlling the plasma jet to enter the second conduit or be sprayed out of the free end of the second conduit part is arranged in the second conduit part.
In some embodiments, at least one second medium pipe is arranged on the communication pipeline, the free end of the second medium pipe is open, and the pipe wall of the second medium pipe is provided with a plasma activating component.
In some embodiments, the second medium pipe is connected with a cold conducting member near a free end.
In some embodiments, a pipe diameter of the second medium pipe is not larger than a pipe diameter of the first pipe part in the first medium pipe.
In some embodiments, the plasma generation module includes an air pump, a power supply unit, a high voltage electrode and a ground electrode, the air pump air passage communicates with the free end of the first pipe portion, the power supply unit is electrically connected with the high voltage electrode and the ground electrode, respectively, the high voltage electrode is connected to the first pipe portion, and the ground electrode is connected to the second pipe portion.
In some embodiments, the first pipe portion and the second pipe portion have the same diameter, the throat portion has a diameter equal to or less than 2/3 of the diameter of the first pipe portion, and the throat portion has a length equal to or less than 1/3 of the length of the first medium pipe.
In some embodiments, the first conduit has a diameter equal to or less than 1/2 of the throat diameter and the second conduit has a diameter equal to or less than 2/3 of the first tube portion diameter.
In some embodiments, the liquid to be treated ejected from the first conduit enters the throat at an incident angle that is at an obtuse angle to the plasma jet flow direction.
In a second aspect, an embodiment of the present application provides a processing method for activating water mist in situ by using plasma, including the following steps:
s1, pouring liquid to be treated into the liquid storage module, wherein the liquid level of the liquid to be treated is not higher than the inner wall of the top of the pipe of the communicating pipeline, and the liquid level of the liquid to be treated is higher than the lower pipe orifices of the first conduit and the second conduit;
s2, starting the plasma generation module to form plasma jet in the first medium pipe;
s3, extracting the liquid to be treated in the first container through the first conduit, activating the liquid to be treated in situ at the throat part to obtain plasma activated water mist, and entering step S41 or step S42;
s41, controlling a change-over valve to close a free end outlet of the second pipe part, and enabling the plasma activated water mist to enter the second container through the second guide pipe;
and S42, controlling the switching valve to close the second conduit, and directly spraying the plasma activated water mist through the free end outlet of the second pipe part.
In some embodiments, in step S41, the plasma activated water mist flowing through the communication pipe is subjected to secondary activation, and the water mist is condensed and refluxed to discharge the gas.
Compared with the prior art, the invention at least comprises the following beneficial effects:
according to the treatment system and method for the plasma in-situ activated water mist, the plasma jet is formed in the first medium pipe, when the high-speed plasma jet flows through the throat, the liquid to be treated in the first container is sucked into the throat due to the local pressure difference, the liquid to be treated forms small liquid drops under the impact of the high-speed plasma jet, a large number of short-life free radicals, ions and solvated electrons in the plasma jet rapidly act on the liquid drops near the surfaces of the liquid drops, and the activation efficiency is improved through the large surface area-to-volume ratio of the liquid drops, so that the plasma in-situ activated water mist is realized;
through control conversion valve, the flow direction of the plasma jet is artificially switched, and the plasma jet can be directly sprayed out in the form of activated water mist from the free end of the second pipe part, namely the plasma jet is ready to use, the plasma jet can also enter the second container through the second pipe and further treat the liquid to be treated in the second container, the liquid to be treated flows into the first container again, and is repeatedly sucked by the throat part and activated in situ, so that the cyclic treatment of the plasma activated water mist is realized.
The invention is described in further detail below with reference to the drawings and the detailed description.
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 structural view illustrating a free end of a second pipe portion shielded by a switching valve in a plasma in-situ mist activation processing system according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a second conduit shielded by a switching valve in a plasma in-situ mist treatment system according to an embodiment of the present invention.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to 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.
In the description of the present invention, when a specific device is described as being located between a first device and a second device, intervening devices may or may not be present between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In a first aspect, referring to fig. 1 to 2, the present embodiment provides a processing system for activating water mist in situ by using plasma, including a plasma generation module, a first medium pipe 2 and a liquid storage module;
the first medium pipe 2 is of a Venturi tube structure and comprises a first pipe part 21, a throat part 22 and a second pipe part 23 which are connected in sequence;
the plasma generation module is used for forming plasma jet in the first medium pipe 2, and the plasma jet enters the second pipe part 23 from the first pipe part 21 through the throat part 22 under the driving of air pressure;
the liquid storage module comprises a first container 7 and a second container 8, the first container 7 is connected with the second container 8 through a communication pipeline 9, the first container 7 and the second container 8 are used for bearing liquid to be processed, at least one exhaust part 14 is further formed in the liquid storage module, the exhaust part 14 can be formed in any one of the first container 7, the second container 8 and the communication pipeline 9, the throat part 22 is connected with a first guide pipe 6 extending into the first container 7, the second pipe part 23 is connected with a second guide pipe 13 extending into the second container 8, and a conversion valve 12 used for controlling plasma jet to enter the second guide pipe 13 or be ejected from the free end of the second guide pipe is arranged in the second pipe part 23.
It should be noted that, the liquid to be treated is poured into the liquid storage module, the liquid to be treated can flow between the first container 7 and the second container 8 through the communication pipe 9, when the plasma generation module is started to form a high-speed plasma jet in the first medium pipe 2, the plasma jet flows from the first pipe part 21 with a larger diameter through the throat part 22 with a smaller diameter and then enters the second pipe part 23 with a larger diameter, when the plasma jet flows through the throat part 22, a pressure difference is formed between the throat part 22 and the liquid surface of the first container 7, so that the liquid to be treated in the first container 7 enters the throat part 22 through the first pipe 6, the liquid to be treated forms small droplets under the impact of the high-speed plasma jet, a large amount of short-life free radicals, ions and solvated electrons exist in the plasma jet, and after the liquid to be treated is atomized in the throat part 22, these substances surround the liquid surface of the liquid droplet and act on the liquid droplet rapidly.
After the liquid drops are activated by the plasma jet, plasma activated water mist is formed, after the plasma activated water mist enters the second pipe part 23, under the switching control of the switching valve 12, two application modes exist, the switching valve 12 is arranged in the second pipe part 23, the switching valve 12 can be manually controlled manually to change the position state of the switching valve 12, and further the flow direction of the plasma activated water mist is switched, as shown in fig. 2, the plasma activated water mist can be directly sprayed out from the free end of the second pipe part 23 in the form of activated water mist, namely ready-to-use, as shown in fig. 1, the plasma activated water mist can also enter the second container 8 through the second pipe 13, as the first container 7 and the second container 8 are communicated, when the liquid to be treated is pumped up from the first pipe 6 to the throat part 22 to be atomized, the liquid to be refluxed from the second pipe 13, and the liquid to be treated is communicated through the communication pipe 9 between the first container 7 and the second container 8, so that the cyclic treatment of the plasma activated water mist is realized.
Furthermore, when the circulation treatment of the plasma activated water mist reaches a certain degree, and the liquid to be treated in the liquid storage module is fully activated at this time, the switching valve 12 can be controlled to open the free end of the second pipe part 23, so that the liquid to be treated is directly extracted through the first guide rail, and is directly sprayed out in the form of water mist after being activated in situ again.
As an embodiment, the switching valve 12 is electrically controlled, and a button or a switch key is used for enabling the switching valve 12 to automatically change the position state thereof, so that the flow direction control of the plasma activated water mist is realized by shielding the second conduit 13 or the free end of the second pipe part 23.
It should be noted that there are many ways of switching the switching valve 12, and besides the way of shielding the second conduit 13 and the second pipe portion 23, a double channel may be provided in the second pipe portion 23, and each channel is provided with the switching valve 12 to individually control the connection and disconnection of each channel. In any case, it is within the scope of the present disclosure to control the manner in which the plasma-activated water mist enters the second conduit 13 or is emitted from the free end of the second tube portion 23.
Preferably, since it is necessary to maintain the pressure above the surface of the liquid to be treated in the reservoir module at atmospheric pressure, the reservoir module is provided with at least one exhaust 14 for exhausting the gas introduced by the plasma generation module, so that the first container 7 can be arranged to be open and the second container 8 can be arranged to be top-sealed.
Preferably, the communication pipe 9 is provided with at least one second medium pipe 10, the free end of the second medium pipe 10 is open, the free end corresponding to the second medium pipe 10 is a gas discharge portion 14, and the gas introduced into the second container 8 through the second conduit 13 rises to the second medium pipe 10 and is discharged from the free end thereof when passing through the communication pipe 9.
In one embodiment, the plasma activating member 15 is disposed on the wall of the second medium pipe 10, the plasma activating member 15 includes a second high voltage electrode and a second ground electrode, the second high voltage electrode and the second ground electrode are disposed on the outer wall of the second medium pipe 10, and the plasma activating mist rises into the second medium pipe 10 from the communicating pipe 9 in addition to the gas, and a part of the plasma activating mist also rises into the second medium pipe 10 due to the light weight, so that after the second high voltage electrode and the second ground electrode are energized, secondary activation of the plasma activating mist can be achieved, and the activation efficiency of the overall circulation treatment can be improved.
As an embodiment, the second medium pipe 10 is connected with a cold conducting member 11 near the free end, the cold conducting member 11 may be in the form of a semiconductor refrigeration sheet, and is attached to the position of the second medium pipe 10 near the free end, and the main purpose is to cool the free end of the second medium pipe 10, so that the plasma activated water mist passing through the free end is cooled to become liquid droplets, and then the liquid droplets drop again, thereby avoiding the loss of the water mist.
Naturally, the cold conducting member 11 may also be in other forms of refrigeration, for example, after the external element is refrigerated, it is thermally connected to the free end of the second medium pipe 10 by building a cold bridge, and a net-shaped structure is set up near the free end of the second medium pipe 10, and the temperature of the net-shaped structure is lower, so as to reduce the local ambient temperature of the free end of the second medium pipe 10, and so as to cool and condense into liquid drops when the water mist passes through the net-shaped structure, and then the liquid drops are attached to the net-shaped structure, and finally fall down.
Additionally, in order to make the droplets formed by cooling the plasma activated water mist better drop, the free end of the second medium pipe 10 can be set to have a certain inclination angle or radian, the flow stroke of the water mist is increased, and the cold guide member 11 is arranged at the inclination or the arc, so that the cooling time of the water mist is increased through the labyrinth type heat conduction, and the water mist is better recovered.
In this embodiment, the plasma generation module includes an air pump 1, a power supply unit 4, a high voltage electrode 31 and a ground electrode 32, the air passage of the air pump 1 is connected to the free end of the first pipe 21, the air pump 1 feeds working gas, which may be air, inert gas, CO, etc., to the free end of the first pipe 21 2 And the power supply unit 4 is respectively electrically connected with the high-voltage electrode 31 and the ground electrode 32, the high-voltage electrode 31 is connected to the first pipe part 21, the ground electrode 32 is connected to the second pipe part 23, the high-voltage electrode 31 and the ground electrode 32 are respectively positioned at two ends of the throat part 22, the high-voltage electrode 31 can be a ring electrode or a needle electrode, gas discharge is ensured to be generated near the high-voltage electrode 31, and the plasma jet is sprayed from the high-voltage electrode 31 to the ground electrode 32, namely the plasma jet enters the second pipe part 23 from the first pipe part 21 through the throat part 22.
Preferably, the power supply unit 4 may be an alternating high voltage current or a direct pulse high voltage power supply.
Preferably, the air pump 1 is driven in a variable frequency mode, the flow rate is adjustable, the circulating treatment speed is controlled during the circulating treatment of the plasma activated water mist, and the air pump can be used for controlling parameters such as the jet flow distance, the jet flow speed and the droplet diameter of the plasma activated water mist when the plasma activated water mist is jetted in a plasma water mist mode after the circulating treatment is completed.
In one embodiment, in order to improve the atomization effect of the liquid to be treated in the throat 22 and generate more droplets, the connection angle between the first conduit 6 and the throat 22 is adjusted so that the liquid to be treated ejected from the first conduit 6 enters the throat 22 at an incident angle which forms an obtuse angle with the flow direction of the plasma jet, i.e., the liquid to be treated is ejected into the throat 22 obliquely backward and forms an impact with the plasma jet in a counter-motion manner, thereby improving the impact force, further atomizing the liquid to be treated and forming a smaller droplet volume.
Preferably, at the outlet of the first conduit 6 connected to the throat 22, a porous splitter plate is arranged, the liquid to be treated is split into a plurality of small liquid columns after passing through the splitter plate, and the plurality of small liquid columns enter the throat 22 and then collide with the plasma jet, so that the atomization effect is improved by reducing the volume of the liquid columns.
Preferably, a flow blocking structure is arranged at a position of the throat 22 corresponding to the ejection of the liquid column of the liquid to be treated, the flow blocking structure is concave towards the inside of the throat 22 and faces the outlet of the first conduit 6, the liquid to be treated ejected from the outlet of the first conduit 6 collides with the flow blocking structure to form dispersion, and the volume of the liquid drop can be effectively reduced.
As an implementation manner, in order to improve the atomization and in-situ activation effects and ensure that the liquid to be treated pumped up to the throat 22 is sufficiently activated without causing waste or deficiency of plasma jet, in this embodiment, the size of each pipeline structure is limited, the diameter of the first pipe part 21 is the same as that of the second pipe part 23, and is between 3mm and 5mm, the diameter of the throat 22 is less than or equal to 2/3 of the diameter of the first pipe part 21, the length of the throat 22 is less than or equal to 1/3 of the total length of the first medium pipe 2, and the flow rate of the working gas is controlled between 6L/min and 20L/min; the diameter of the first conduit 6 is less than or equal to 1/2 of the diameter of the throat 22, and the diameter of the second conduit 13 is less than or equal to 2/3 of the diameter of the first pipe part 21; the pipe diameter of the second medium pipe 10 is not larger than that of the first pipe part 21 in the first medium pipe 2, the pipe diameter of the second medium pipe 10 is similar to that of the first pipe part 21, and the better discharge characteristic of the plasma activation component 15 can be realized within the range of 3-5 mm.
In a second aspect, the present embodiment provides a processing method for activating water mist in situ by plasma, including the following steps:
s1, pouring liquid to be treated into a liquid storage module, wherein the liquid level of the liquid to be treated is not higher than the inner wall of the top of a pipe of a communication pipeline 9, namely, the connection of an air passage between a first container 7 and a second container 8 is ensured, the air pressure is consistent and is atmospheric pressure, the liquid level of the liquid to be treated is higher than the lower pipe orifices of a first conduit 6 and a second conduit 13, the first conduit 6 and the second conduit 13 are inserted below the liquid level, the liquid to be treated is conveniently extracted out by the first conduit 6, and the plasma activated water is uniformly mixed by the gas coming out of the second conduit 13 in a bubbling mode, so that the concentration of water mist entering a second medium pipe 10 is higher;
s2, starting a plasma generation module, forming plasma jet in the first medium pipe 2, and enabling the plasma jet to enter the second pipe part 23 from the first pipe part 21 through the throat part 22 under the driving of air pressure;
s3, extracting the liquid to be treated in the first container 7 through the first conduit 6, and activating the liquid to be treated in situ at the throat 22 to obtain plasma activated water mist, wherein the step S41 or the step S42 can be selected manually;
s41, controlling the switching valve 12 to close the outlet of the free end of the second pipe part 23, enabling the plasma activated water mist to enter the second container 8 through the second pipe 13, and fully mixing the plasma activated water mist with the liquid to be treated in the second container 8 in an underwater bubbling mode, wherein naturally, as the liquid in the second container 8 is increased, part of the liquid flows back to the first container 7 through the communicating pipeline 9, the cyclic activation treatment can be realized;
s42, controlling the switching valve 12 to close the second conduit 13, so that the plasma activated water mist is directly sprayed out through the free end outlet of the second pipe part 23, namely the liquid to be treated is sprayed out of the throat part 22, is atomized, is activated in situ, and is directly sprayed out of the second pipe part 23.
Of course, after a certain period of time of the processing in step S41, when the liquid to be processed in the liquid storage module is sufficiently activated, the process proceeds to step S42, that is, after a certain volume of plasma activated water is prepared, the plasma activated water is sprayed from the second pipe portion 23 in the form of plasma activated water mist.
As an embodiment, in step S41, since the plasma activated water mist entering the second container 8 through the second conduit 13 has a portion of the water mist and the gas escaping from the liquid to be treated, and the portion of the water mist and the gas will flow through the communicating pipe 9, the portion of the plasma activated water mist is activated for the second time in this embodiment, and the water mist therein is condensed and returned to discharge the gas, so that the water mist activation effect can be further improved, and the loss rate of the water mist can be reduced.
Alternatively, as an embodiment, the liquid to be treated may be an organic solution of olefins and the working gas is CO 2 Gas, CO 2 After the gas is discharged by the plasma, O atoms are generated, which can induce the olefin epoxidation and realize higher epoxidation efficiency, so that the treatment system and method provided by the embodiment can realize CO 2 The plasma activates the olefin solution in situ, further increasing the reaction efficiency of the O atoms and the olefin solution.
Compared with the prior art, the embodiment provides a processing system and a method for plasma in-situ activated water mist, wherein plasma jet is formed in the first medium pipe 2, when high-speed plasma jet flows through the throat 22, the local pressure difference enables liquid to be processed in the first container 7 to be sucked into the throat 22, the liquid to be processed forms small droplets under the impact of the high-speed plasma jet, a large number of short-life radicals, ions and solvated electrons in the plasma jet rapidly act on the droplets near the surfaces of the droplets, and the activation efficiency is improved through the large surface area-to-volume ratio of the droplets, so that the plasma in-situ activated water mist is realized;
through controlling the switching valve 12, the flow direction of the plasma jet is manually switched, and the plasma jet can be directly sprayed out in the form of activated water mist from the free end of the second pipe part 23, namely the plasma jet is ready to use, the plasma jet can also enter the second container 8 through the second pipe 13, the liquid to be treated in the second container 8 is further treated, the liquid to be treated flows into the first container 7 again, and is repeatedly sucked by the throat part 22 and is activated in situ, so that the cyclic treatment of the plasma activated water mist is realized.
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 examples only show some embodiments of the present invention, 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 inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A processing system for activating water mist in situ by plasma is characterized by comprising a plasma generation module, a first medium pipe and a liquid storage module;
the first medium pipe is of a Venturi tube structure and comprises a first pipe part, a throat part and a second pipe part which are sequentially connected;
the plasma generation module is used for forming plasma jet in the first medium pipe, and the plasma jet enters the second pipe part from the first pipe part through the throat part under the driving of air pressure;
the liquid storage module comprises a first container and a second container, the first container is connected with the second container through a communication pipeline, at least one exhaust part is further formed in the liquid storage module, the throat part is connected with a first conduit extending into the first container, the second conduit part is connected with a second conduit extending into the second container, and a conversion valve used for controlling the plasma jet to enter the second conduit or be sprayed out of the free end of the second conduit part is arranged in the second conduit part.
2. The system of claim 1, wherein the connecting channel has at least one second medium pipe, the free end of the second medium pipe is open, and the wall of the second medium pipe has a plasma activating member.
3. The system of claim 2, wherein the second dielectric tube is coupled to a cold conducting member proximate the free end.
4. The system of claim 3, wherein the diameter of the second dielectric tube is not larger than the diameter of the first dielectric tube.
5. The system as claimed in any one of claims 1 to 4, wherein the plasma generation module comprises an air pump, a power supply unit, a high voltage electrode and a ground electrode, the air pump air passage communicates with the free end of the first pipe portion, the power supply unit is electrically connected to the high voltage electrode and the ground electrode, respectively, the high voltage electrode is connected to the first pipe portion, and the ground electrode is connected to the second pipe portion.
6. The system of claim 5, wherein the first pipe portion and the second pipe portion have the same diameter, the throat portion has a diameter of 2/3 or less of the diameter of the first pipe portion, and the throat portion has a length of 1/3 or less of the diameter of the first medium pipe.
7. The system of claim 6, wherein the first conduit has a diameter less than or equal to 1/2 of the diameter of the throat portion, and the second conduit has a diameter less than or equal to 2/3 of the diameter of the first tube portion.
8. The system of claim 7, wherein the liquid to be treated ejected from the first conduit enters the throat at an incident angle that is obtuse to the direction of the plasma jet flow.
9. A treatment method for activating water mist in situ by plasma is characterized by comprising the following steps:
s1, pouring liquid to be treated into the liquid storage module, wherein the liquid level of the liquid to be treated is not higher than the inner wall of the top of the pipe of the communicating pipeline, and the liquid level of the liquid to be treated is higher than the lower pipe orifices of the first conduit and the second conduit;
s2, starting the plasma generation module to form plasma jet in the first medium pipe;
s3, extracting the liquid to be treated in the first container through a first conduit, activating the liquid to be treated in situ at the throat part to obtain plasma activated water mist, and entering the step S41 or the step S42;
s41, controlling a change-over valve to close a free end outlet of the second pipe part, and enabling the plasma activated water mist to enter the second container through the second guide pipe;
and S42, controlling the switching valve to close the second conduit, and directly spraying the plasma activated water mist through the free end outlet of the second pipe part.
10. The method as claimed in claim 9, wherein in step S41, the plasma activated mist flowing through the connecting channel is activated again, and the mist is condensed and returned to discharge the gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211331302.8A CN115643665A (en) | 2022-10-28 | 2022-10-28 | Treatment system and method for plasma in-situ activation of water mist |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211331302.8A CN115643665A (en) | 2022-10-28 | 2022-10-28 | Treatment system and method for plasma in-situ activation of water mist |
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| CN202211331302.8A Pending CN115643665A (en) | 2022-10-28 | 2022-10-28 | Treatment system and method for plasma in-situ activation of water mist |
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