A plasma generator

Abstract

This invention discloses a plasma generator, comprising a cylindrical section, an ionization component, and a gas guiding mechanism. The cylindrical section contains a ring body, dividing the section into an upper chamber and a lower chamber. The upper chamber is equipped with an air inlet mechanism, and the ring body has an air outlet. The ionization component includes a first electrode and a second electrode fixedly installed in the lower chamber. The first and second electrodes can discharge to generate plasma. The gas guiding mechanism includes a gas chamber and a gas disk located below the ionization region of the ionization mechanism. The gas disk extends laterally along its edge to the inner wall of the upper chamber. The gas disk has an arc-shaped surface and an opening at the bottom of the arc-shaped surface, which communicates with the gas chamber. Multiple sets of gas guiding ports are formed on the arc-shaped surface, and each set of gas guiding ports is connected to a set of gas channels. Under the influence of the incoming gas, the plasma flows downward through the gas guiding ports on the gas disk into the gas channels, and then enters the liquid inlet chamber along the gas channels to contact the flowing liquid. This allows the generated plasma to contact the flowing liquid in a guided motion state, achieving a highly efficient purification and sterilization effect on the liquid.

Description

Technical Field

[0001] This invention relates to the field of plasma technology, specifically to a plasma generator. Background Technology

[0002] Plasma is the fourth state of matter after solid, liquid, and gas. It has a wide range of applications, from our daily lives to industry, agriculture, environmental protection, military, medicine, and aerospace.

[0003] Plasma can be generated naturally, such as the aurora borealis and lightning, or by a plasma generator producing high-voltage ionized air to create a plasma jet. Current technologies generally generate plasma by using an electric arc generated by a cathode and anode to act on the air. However, continuous ventilation makes the plasma movement undirected. When purifying and sterilizing liquids, only a portion of the plasma can contact the surface of the liquid, resulting in unsatisfactory purification and sterilization effects. Therefore, this invention proposes a plasma generator that can solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a plasma generator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a plasma generator, comprising:

[0006] The cylindrical part has a ring body inside, which divides the cylindrical part into an upper cavity and a lower cavity. The upper cavity is equipped with an air inlet mechanism, and the ring body has an air outlet, so that the air inlet mechanism can introduce air into the upper cavity and discharge it into the lower cavity through the air outlet. The bottom of the lower cavity has a liquid inlet chamber, through which liquid flows through the liquid inlet chamber through a liquid distribution mechanism.

[0007] An ionization assembly includes a first electrode and a second electrode fixedly installed in a lower cavity, which can discharge to generate plasma.

[0008] The gas guiding mechanism includes a gas chamber and a gas disk located below the ionization region of the ionization mechanism. The gas disk extends laterally along its edge to the inner wall of the upper cavity. The gas disk has an arc-shaped surface and an opening at the bottom of the arc-shaped surface. The opening communicates with the gas chamber. Multiple sets of gas guiding ports are opened on the arc-shaped surface. Each set of gas guiding ports is connected to a set of gas channels. The gas channels transport plasma to contact the liquid flowing through the liquid inlet chamber. At least one set of return pipes is provided on the gas chamber for returning the gas entering the gas chamber to the area above the ionization region of the ionization mechanism.

[0009] As a preferred embodiment of the present invention, the air outlet is a conical structure and extends downward to the ionization region of the ionization mechanism.

[0010] As a preferred embodiment of the present invention, the air intake mechanism includes an air intake source installed in the upper cavity, a filter screen is attached to the input end of the air intake source, and the output end of the air intake source supplies air to the upper cavity.

[0011] As a preferred technical solution of the present invention, multiple sets of air inlets are evenly distributed circumferentially on the arc-shaped surface, the cross-sectional angle of the arc-shaped surface is 150°-160°, and the inner diameter of the opening is one-quarter of the outer diameter of the arc-shaped surface.

[0012] As a preferred technical solution of the present invention, the liquid separation mechanism includes a liquid guide pipe that penetrates into the liquid inlet chamber, multiple sets of flow channels located inside the liquid inlet chamber, and a liquid collection tank located outside the liquid inlet chamber. The multiple sets of flow channels are all flat-mouthed and extend downward at an angle. The liquid guide pipe transports the liquid to be treated through branch pipes, which flows downward along the multiple sets of flow channels and enters the liquid collection tank. The air passage is connected to the flow channel in a one-to-one correspondence, so that the discharged plasma moves upward along the flow channel and contacts the flowing liquid.

[0013] As a preferred technical solution of the present invention, each group of flow channels is provided with a thin circular tube at the point where it exits the liquid inlet chamber, and the height of the part of each group of flow channels in the liquid inlet chamber gradually decreases from bottom to top, so that when the liquid flows through the thin circular tube, it forms a water seal on the flow channel, and the space gradually shrinks as the plasma entering the flow channel moves upward along the flow channel.

[0014] As a preferred technical solution of the present invention, each of the flow channels is provided with a stepped section to allow the upper and lower layers of the flowing liquid to exchange and change.

[0015] As a preferred embodiment of the present invention, an exhaust pipe is provided in the middle of the multiple sets of flow channels, and the exhaust pipe extends downward out of the liquid inlet chamber.

[0016] The present invention also provides a liquid purification method for a plasma generator, specifically including the following steps:

[0017] A liquid purification method for a plasma generator specifically includes the following steps:

[0018] S1. After the air intake mechanism takes in air into the upper chamber, it discharges it into the lower chamber through the air outlet. The first electrode and the second electrode discharge the incoming gas to generate plasma.

[0019] S2. Under the action of the incoming gas, the plasma enters the gas channel through the gas guide port on the gas plate and enters the liquid inlet chamber along the gas channel, where it comes into contact with the flowing liquid. The unionized gas enters the gas chamber through the opening and moves again along the return pipe to the ionization area, where it ionizes with the incoming gas to generate plasma, which then enters the liquid inlet chamber.

[0020] S3. The liquid is made to flow through the liquid inlet chamber by the liquid separation mechanism, so that the generated plasma comes into contact with the flowing liquid in a guided motion state to purify and sterilize.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a plasma generator in which the air intake mechanism intakes the upper chamber and then discharges it to the lower chamber through the air outlet. The first electrode and the second electrode discharge the incoming gas to generate plasma. Under the action of the incoming gas, the plasma enters the air passage through the air guide port on the air plate and enters the liquid inlet chamber along the air passage to contact the flowing liquid. The unionized gas enters the air chamber through the opening and moves again along the return pipe to the ionization area to ionize the incoming gas and generate plasma, which then enters the liquid inlet chamber. The generated plasma contacts the flowing liquid in a guided motion state, thereby achieving a highly efficient purification and sterilization effect on the liquid.

[0022] Furthermore, unionized air can enter the gas chamber through the opening and move again to the ionization region along the return pipe to generate plasma, which has a high air utilization rate and avoids the filtration effect deteriorating after continuous introduction of external air, which would shorten the cathode life of the first and second electrodes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a sectional view of the cylindrical portion of the present invention from one side;

[0025] Figure 3 This is a cross-sectional view of the cylindrical portion of the present invention from another side.

[0026] Figure 4 This is a schematic diagram of the internal structure of the upper and lower cavities of the present invention;

[0027] Figure 5 This is a schematic diagram of the gas-disk structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the liquid separation mechanism of the present invention;

[0029] Figure 7 This is a schematic diagram of the flow channel structure of the present invention;

[0030] In the diagram: 100, cylindrical section; 110, ring body; 111, air outlet; 120, upper chamber; 121, adsorption plate; 130, lower chamber; 140, liquid inlet chamber; 200, air inlet mechanism; 210, air intake source; 220, filter screen; 300, ionization component; 400, air guiding mechanism; 410, air plate; 411, arc-shaped surface; 412, air guide port; 413, opening; 414, air guide groove; 415, air passage; 420, air chamber; 422, return pipe; 500, liquid distribution mechanism; 510, liquid guide pipe; 511, branch pipe; 520, flow channel; 521, thin round pipe; 522, stepped section; 530, liquid collection tank; 540, exhaust pipe; 550, pump body. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1

[0033] Please see Figure 1-7 A plasma generator includes a cylindrical section 100, an ionization component 300, and a gas guiding mechanism 400. A ring body 110 is provided inside the cylindrical section 100, dividing the cylindrical section 100 into an upper chamber 120 and a lower chamber 130. The upper chamber 120 is equipped with an air intake mechanism 200, and an air outlet 111 is opened on the ring body 110, so that the air intake mechanism 200 intakes the upper chamber 120 and discharges it into the lower chamber 130 through the air outlet 111. A liquid inlet chamber 140 is opened at the bottom of the lower chamber 130, and liquid flows through the liquid inlet chamber 140 through a liquid distribution mechanism 500. Multiple adsorption plates 121 are provided in the upper chamber 120 to adsorb and filter the incoming gas.

[0034] Please see Figure 2 , Figure 3 , Figure 4 The ionization component 300 includes a first electrode and a second electrode fixedly installed in the lower cavity 130. The first electrode and the second electrode can discharge to generate plasma. The first electrode and the second electrode are connected to an external power source.

[0035] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5The gas guiding mechanism 400 includes a gas chamber 420 and a gas disk 410 located below the ionization region of the ionization mechanism. The gas disk 410 extends laterally along its edge to the inner wall of the upper cavity 120. The gas disk 410 has an arc-shaped surface 411 and an opening 413 located at the bottom end of the arc-shaped surface 411. The opening 413 communicates with the gas chamber 420. Multiple sets of gas guiding ports 412 are opened on the arc-shaped surface 411. Each set of gas guiding ports 412 is connected to a set of gas channels 415. The gas channels 415 transport plasma to contact the liquid flowing through the liquid inlet chamber 140. At least one set of return pipes 422 are provided on the gas chamber 420 for returning the gas entering the gas chamber 420 to the area above the ionization region of the ionization mechanism. The plasma generated by the discharge of the first electrode and the second electrode can pass through the gas guiding ports 412 and 413. 2. The air enters the air passage 415 and enters the liquid inlet chamber 140 along the air passage 415 to contact the flowing liquid. Unlike the prior art, which only contacts the surface of the liquid, the purification and sterilization effect is better. Moreover, the unionized air enters the air chamber 420 through the opening 413 and can move again to the ionization area along the return pipe 422 to generate plasma. The utilization rate of air is high, and the filtration effect is deteriorated after continuous introduction of external air, which leads to a shortening of the cathode life in the first and second electrodes. Further preferably, the arc surface 411 has an air guide groove 414 above each group of air guide ports 412. The air guide groove 414 is fan-shaped, and the top side length is longer than the bottom side length. This can guide more plasma moving along the arc surface 411 to the air guide port 412.

[0036] After the air intake mechanism 200 intakes the upper chamber 120, it discharges the air through the air outlet 111 into the lower chamber 130. The first electrode and the second electrode discharge the incoming gas to generate plasma. Under the action of the incoming gas, the plasma flows downward through the air guide port 412 on the air plate 410 into the air passage 415, and then enters the liquid inlet chamber 140 along the air passage 415 to contact the flowing liquid. Meanwhile, the unionized gas enters the air chamber 420 through the opening 413 and moves along the return pipe 422 times to the ionization area to ionize with the incoming gas to generate plasma, which enters the liquid inlet chamber 140. The generated plasma contacts the flowing liquid in a guided motion state, which has a highly efficient purification and sterilization effect on the liquid.

[0037] Example 2

[0038] Please see Figure 2 , Figure 3 , Figure 4The air outlet 111 has a conical structure and extends downward to the ionization area of ​​the ionization mechanism, so as to smoothly deliver air to the ionization area. The air intake mechanism 200 includes an air intake source 210 installed in the upper cavity 120. A filter screen 220 is attached to the input end of the air intake source 210. The output end of the air intake source 210 supplies air to the upper cavity 120. The air intake source 210 is preferably a fan. When working, it draws in external air into the upper cavity 120 and removes dust from the air through the filter screen 220. The filter screen 220 is detachable at the input end of the air intake source 210, which is convenient for regular replacement or cleaning.

[0039] Please see Figure 4 , Figure 5 Multiple sets of gas inlets 412 are evenly distributed circumferentially on the arc-shaped surface 411. The cross-sectional angle of the arc-shaped surface 411 is 150°-160°, preferably 150°. The inner diameter of the opening 413 is one-quarter of the outer diameter of the arc-shaped surface 411, so that during the downward movement of the plasma, part of it can directly enter the gas inlet 412, and part of it can slowly flow along the arc-shaped surface 411 into the gas inlet 412, thereby increasing the amount of plasma discharged through the gas inlet 412.

[0040] Example 3

[0041] Please see Figure 2 , Figure 3 , Figure 6 The liquid distribution mechanism 500 includes a liquid guide pipe 510 that penetrates into the liquid inlet chamber 140, multiple sets of flow channels 520 located in the liquid inlet chamber 140, and a liquid collection tank 530 located outside the liquid inlet chamber 140. The multiple sets of flow channels 520 are all flat and extend downward at an angle. The liquid guide pipe 510 is supplied with the liquid to be treated by an external pump body 550 and is transported by a branch pipe 511 along the multiple sets of flow channels 520 downward and into the liquid collection tank 530. The gas passage 415 is connected to the flow channel 520 one by one, so that the discharged plasma moves upward along the flow channel 520 and contacts the flowing liquid. The number of branch pipes 511 matches the number of flow channels 520. The branch pipes 511 are inserted into the flow channels 520 respectively. The liquid collection tank 530 can transport the purified liquid to the liquid collection box for collection through an external pipe.

[0042] Please see Figure 6 , Figure 7 Each flow channel 520 is provided with a thin round tube 521 at the point where it exits the liquid inlet chamber 140, so that when the liquid flows through the thin round tube 521, it forms a water seal on the flow channel 520. After the plasma enters the interior of the flow channel 520 through the gas passage 415, it can only move upward along the flow channel 520 at an angle, avoiding direct discharge, so that the plasma and the liquid can have effective contact.

[0043] The plasma moving along the flow channel 520 continuously comes into contact with the liquid. The closer to the top of the flow channel 520, the less plasma it contains. That is, the purification effect on the liquid gradually deteriorates as it moves upward. The portion of each flow channel 520 within the liquid inlet chamber 140 gradually decreases in height from bottom to top. As the plasma entering the flow channel 520 moves upward along the flow channel 520, the space gradually shrinks. With the width remaining constant, the height gradually shrinks, meaning that the space for expansion and diffusion also gradually shrinks. By shrinking the space, the amount of plasma per unit volume can be kept as consistent as possible during the upward tilting motion along the flow channel 520, maintaining a strong purification and sterilization effect on the liquid, thereby fully purifying the liquid flowing through the flow channel 520.

[0044] Please see Figure 6 , Figure 7 Each flow channel 520 is provided with a stepped section 522, which is used to allow the upper and lower layers of the flowing liquid to exchange and change. The stepped section 522 is a continuous stepped layer along the flow channel 520, so that the liquid continuously falls and impacts the stepped layer when flowing along the flow channel 520. The upper and lower layers of the liquid continuously exchange and change during the flow process and come into contact with the plasma that causes it to move upward along the flow channel 520, effectively killing the bacteria deposited inside the liquid.

[0045] Please see Figure 2 , Figure 3 , Figure 6 An exhaust pipe 540 is provided in the middle of the multiple flow channels 520. The exhaust pipe 540 extends downward out of the liquid inlet chamber 140, and the air is finally discharged from the liquid inlet chamber 140 through the exhaust pipe 540.

[0046] Example 4

[0047] A liquid purification method for a plasma generator specifically includes the following steps:

[0048] S1. After the air intake mechanism 200 intakes the upper chamber 120, it discharges the air into the lower chamber 130 through the air outlet 111. The first electrode and the second electrode discharge the incoming gas to generate plasma.

[0049] S2. Under the action of the incoming gas, the plasma enters the gas channel 415 through the gas guide port 412 on the gas plate 410 and enters the liquid inlet chamber 140 along the gas channel 415 to contact the flowing liquid. The unionized gas enters the gas chamber 420 through the opening 413 and moves along the return pipe 422 times to the ionization region to ionize with the incoming gas to generate plasma, which then enters the liquid inlet chamber 140.

[0050] S3. The liquid is made to flow through the liquid inlet chamber 140 by the liquid separation mechanism, so that the generated plasma comes into contact with the flowing liquid in a guided motion state to purify and sterilize.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plasma generator, characterized in that, include: The cylindrical part has a ring body inside, which divides the cylindrical part into an upper cavity and a lower cavity. The upper cavity is equipped with an air inlet mechanism, and the ring body has an air outlet, so that the air inlet mechanism can introduce air into the upper cavity and discharge it into the lower cavity through the air outlet. The bottom of the lower cavity has a liquid inlet chamber, through which liquid flows through the liquid inlet chamber through a liquid distribution mechanism. An ionization assembly includes a first electrode and a second electrode fixedly installed in a lower cavity, which can discharge to generate plasma. The gas guiding mechanism includes a gas chamber and a gas disk located below the ionization region of the ionization mechanism. The gas disk extends laterally along the edge to the inner wall of the upper cavity. The gas disk has an arc-shaped surface and an opening at the bottom end of the arc-shaped surface. The opening communicates with the gas chamber. Multiple sets of gas guiding ports are opened on the arc-shaped surface. Each set of gas guiding ports is connected to a set of gas channels. The gas channels transport plasma to contact the liquid flowing through the liquid inlet chamber. At least one set of return pipes is provided on the gas chamber for returning the gas entering the gas chamber to the area above the ionization region of the ionization mechanism. The liquid distribution mechanism includes a liquid guide pipe that penetrates into the liquid inlet chamber, multiple sets of flow channels located inside the liquid inlet chamber, and a liquid collection tank located outside the liquid inlet chamber. The multiple sets of flow channels are all flat-mouthed and extend downward at an angle. The liquid guide pipe transports the liquid to be treated through branch pipes, which flows downward along the multiple sets of flow channels and enters the liquid collection tank. The air passage is connected to the flow channel in a one-to-one correspondence, so that the discharged plasma moves upward along the flow channel and contacts the flowing liquid. Each of the flow channels is provided with a thin circular tube at the point where it exits the liquid inlet chamber, and the height of the portion of each flow channel inside the liquid inlet chamber gradually decreases from bottom to top, so that when the liquid flows through the thin circular tube, it forms a water seal on the flow channel, and the space gradually shrinks as the plasma entering the flow channel moves upward along the flow channel.

2. A plasma generator according to claim 1, characterized in that, The air outlet has a conical structure and extends downward to the ionization region of the ionization mechanism.

3. A plasma generator according to claim 1, characterized in that, The air intake mechanism includes an air intake source installed in the upper cavity, with a filter attached to the input end of the air intake source and the output end of the air intake source supplying air to the upper cavity.

4. A plasma generator according to claim 1, characterized in that, Multiple sets of air inlets are evenly distributed circumferentially on the arc-shaped surface, the cross-sectional angle of the arc-shaped surface is 150°-160°, and the inner diameter of the opening is one-quarter of the outermost diameter of the arc-shaped surface.

5. A plasma generator according to claim 1, characterized in that, Each of the flow channels is provided with a stepped section to allow the flowing liquid to exchange between upper and lower layers.

6. A plasma generator according to claim 1, characterized in that, An exhaust pipe is provided in the middle of the multiple sets of flow channels, and the exhaust pipe extends downward out of the liquid inlet chamber.

7. A liquid purification method for a plasma generator according to any one of claims 1-6, characterized in that, Specifically, the following steps are included: S1. After the air intake mechanism takes in air into the upper chamber, it discharges it into the lower chamber through the air outlet. The first electrode and the second electrode discharge the incoming gas to generate plasma. S2. Under the action of the incoming gas, the plasma enters the gas channel through the gas guide port on the gas plate and enters the liquid inlet chamber along the gas channel, where it comes into contact with the flowing liquid. The unionized gas enters the gas chamber through the opening and moves again along the return pipe to the ionization area, where it ionizes with the incoming gas to generate plasma, which then enters the liquid inlet chamber. S3. The liquid is made to flow through the liquid inlet chamber by the liquid separation mechanism, so that the generated plasma comes into contact with the flowing liquid in a guided motion state to purify and sterilize.

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