An oscillating and regulated composite plasma discharge device

Abstract

The present invention belongs to the field of discharge devices and discloses an oscillating and controlled composite plasma discharge device. A filter membrane is fixed to the top of a cavity wall housing. A fan is located vertically directly below the filter membrane and is evenly and symmetrically distributed. Discharge module I is located vertically directly below the fan, with a certain gap between discharge module I and the fan. Discharge module II is located vertically directly below discharge module I. An oscillation drive module is located on both sides of an opening in the side wall of the cavity wall housing. The ends of spring A are respectively fixed to the cavity wall housing fixed terminal A and the fixed terminals on the grounding terminal of the special-shaped plate B. The ends of spring B are respectively fixed to the cavity wall housing fixed terminal B and the fixed terminals on the grounding terminal of the special-shaped plate B. The ends of the fixing rod are respectively fixed to the cavity wall housing fixed terminal A and the cavity wall housing fixed terminal B, and pass through the fixed terminal channel on the grounding terminal of the special-shaped plate B. The discharge device of the present invention has low energy consumption, high efficiency, low discharge power, and good application and treatment effects.

Description

Technical Field

[0001] The present invention belongs to the field of discharge devices, and in particular relates to an oscillation-controlled composite plasma discharge device. Background Art

[0002] Epidemic viruses replicate rapidly and can be transmitted through multiple channels, including droplets, aerosols, and direct and indirect contact. They lodge in the host's respiratory system and other systems, causing pathogenic harm. Given the epidemic characteristics of these viruses, the most effective way to prevent their rapid spread is timely, rapid, and effective disinfection. This is particularly important in special work environments with high traffic volumes, complex items, and confined spaces, such as subways, high-speed trains, airplanes, cruise ships, and underground supermarkets.

[0003] Atmospheric-pressure low-temperature plasma can dissociate, excite, and ionize the working gas within the discharge channel through a strong electric field. This plasma contains a large number of active components, including electrons, ions, excited active species, oxidative free radicals, and ultraviolet rays. These active components can act on viruses, bacteria, and fungi, penetrating the bacteria to destroy their internal structure and components, resulting in rapid and efficient pathogen killing. Furthermore, these active components exist only within the limited range of the discharge channel, have a short lifespan, and can rapidly recombine with surrounding gas molecules. This leaves no secondary residual hazards during the sterilization process, making it an ideal sterilization and disinfection method. However, current plasma sterilization and disinfection technologies mostly use a single, fixed discharge structure and form, often combined with catalysts to improve efficiency. While these technologies are clearly targeted at specific application environments and targets, they also have significant limitations in terms of application conditions. This results in unsatisfactory results for plasma technologies with strong sterilization and disinfection potential in complex working environments, to a certain extent limiting their application and promotion in the field of sterilization and disinfection. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention aims to provide a composite plasma discharge device that is efficient, safe, reliable, oscillating and adjustable, and has strong universal applicability.

[0005] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0006] An oscillating and regulated composite plasma discharge device comprises a negative pressure filtration system, a discharge module I, a discharge module II, a cavity wall shell, an oscillation drive module and a ventilation channel; the negative pressure filtration system is located at the upper end of the entire discharge device, the top is a biological filter membrane, and the lower end of the biological filter membrane is a fan, and the fan is evenly arranged vertically above the top pore of the discharge module I; the discharge module I is composed of a porous electrode plate, a cylindrical electrode, a special-shaped plate A and a special-shaped plate B, the upper end of which is a porous electrode plate, the centers of the holes of the porous electrode plate are evenly distributed below the fan, the aperture is threaded, and it is fixed to the cavity wall shell of the entire oscillating and regulated composite plasma discharge device, its external terminal is connected to the driving high voltage, the upper end of the cylindrical electrode is threaded, and is coaxially fixed with the holes of the porous electrode plate at the upper end of the discharge module A, the center of the cylindrical electrode is through, and it is tubular, the cylindrical side wall is hollowed out, the cylindrical electrode is fixed to the porous plate, the lower end of the cylindrical electrode is connected to multiple triangular metal sheets, and the metal sheets are all inclined to the central axis of the cylindrical electrode, and the special-shaped plate A is located at the bottom of the discharge module I. At the lower end of the cylindrical electrode, the upper surface of the special-shaped plate A is a cylindrical hole. The hole position is coaxial with the cylindrical electrode, the hole size is slightly larger than the cylindrical electrode, and there are conical protrusions inside the hole. The lower surface of the special-shaped plate A is engraved with rectangular grooves. The groove positions are alternately staggered with the holes on the upper surface. Neither the grooves on the lower surface nor the holes on the upper surface completely penetrate the special-shaped plate A. The special-shaped plate B is located at the lower end of the special-shaped plate A. Its overall edge size is the same as that of the special-shaped plate A above. There is a rectangular parallelepiped extending at the center of the two short sides, and the There are two circular holes running through the extension body. The circular hole close to the main body is coaxially connected to the spring rod, and the other circular hole is connected to the ground wire, so that the entire special-shaped plate B together with the plate connected to the special-shaped plate B constitutes a ground electrode. There are multiple rows of hollow circular holes in the central area of ​​the special-shaped plate B, and the center positions of the multiple holes are arranged linearly. The aperture sizes of the same holes in the longitudinal direction are the same, and the aperture sizes of the same holes in the transverse direction increase from the middle to the two sides. The holes of the same aperture arranged in the longitudinal direction are arranged to correspond to the groove positions on the lower surface of the special-shaped plate A above. Discharge module II consists of special-shaped plates B, C, D, and special-shaped electrodes. The edge dimensions of special-shaped plate C are the same as those of special-shaped plate B. A rectangular groove is engraved on the upper surface of special-shaped plate C. The rectangular area of ​​the groove covers the porous array in the center area of ​​special-shaped plate B. The lower surface of special-shaped plate C is composed of multiple rectangular metal plates arranged at equal intervals. There is a rectangular hollow at the center of special-shaped plate C. The rectangular size is the same as the edge size of the rectangular metal plate on the lower surface. The hollow depth reaches slightly below the top of the rectangular metal plate at the center of the lower surface, forming a certain gap between the top of the metal plate and the lower surface of special-shaped plate C. Special-shaped plate D is H-shaped, and the upper surface of the H-shaped plate has multiple rectangular metal plates arranged at equal intervals. The rectangular metal plate is the same size as the rectangular metal plate on the lower surface of special-shaped plate C, and its height is slightly lower than the edge plates on both sides of special-shaped plate D. This structure ensures that after the edges of special-shaped plate D and special-shaped plate C are aligned and connected, the rectangular metal plate on the upper surface of special-shaped plate D and the rectangular metal plate on the lower surface of special-shaped plate C form a cross arrangement.An array of equally spaced circular holes is opened at the crossbeam position of the special-shaped plate D. The position of the circular hole array corresponds to the cross-arranged gap of the metal plate. Rectangular through holes are opened at the lower ends of both sides of the H-shaped edge below the special-shaped plate D. Special-shaped plates A, B, C and D are connected to form a movable grounding electrode. The lower end of the special-shaped plate D is a special-shaped electrode. The long side of the rectangular plate at the lower end of the special-shaped electrode is slightly shorter than the long side of the special-shaped plate D. Both sides are shorter by the thickness of the edge of the special-shaped plate D, so that the movable grounding electrode can move up and down. A rectangular hole is pulled out along the center position on one side of the short side of the special-shaped electrode. The terminal block has a circular hole on it. The size and hole position of the pulled-out terminal block are the same as those on the multi-hole special-shaped electrode above. The terminal block is connected to the high voltage. There is a columnar metal rod array on the upper surface of the special-shaped electrode. The axis position of the columnar metal rod array corresponds to the axis position of the cross-beam through-hole of the special-shaped plate D, and the diameter of the metal rod is smaller than the diameter of the through-hole. The length of the metal rod is smaller than the depth of the cross-arranged cavity formed by the rectangular metal plate on the upper surface of the special-shaped plate D and the rectangular metal plate on the lower surface of the special-shaped plate C. The special-shaped electrode is fixed on The cavity wall shell of the entire oscillation-controlled composite plasma discharge device is a hollow rectangular shell that completely encloses the negative pressure filtration system, discharge module I, and discharge module II. Rectangular holes are opened at the center of the upper end and the bottom of the short side wall to fix the upper porous special-shaped electrode terminal and the lower special-shaped electrode terminal. Long rectangular through holes are opened at the center of both sides of the long side wall. The width of the long rectangular through holes is relative to the extension of the upper rectangular parallelepiped of the special-shaped plate B. The upper rectangular parallelepiped of the special-shaped plate B extends from here, and the two sides A pair of fixed terminals are located adjacent to the upper and lower ends of the channel. Multiple long, narrow through-holes are located near the upper lower ends of the long sides of the composite plasma discharge device's cavity wall, forming ventilation channels. The oscillation drive module consists of a spring and a connecting rod. The connecting rod passes through a reserved channel in the special-shaped plate B and is fixed to the composite plasma discharge device's cavity wall. The spring and connecting rod are coaxial, with an inner diameter similar to the outer diameter of the connecting rod. They are fixed to the upper fixed terminal and the upper surface of the reserved channel in the special-shaped plate B, as well as the lower fixed terminal and the lower surface of the reserved channel in the special-shaped plate B.

[0007] Furthermore, the negative pressure filtration system adopts a biological filter membrane and a fan in combination with a composite plasma discharge device airway design, and the main body is made of high-voltage insulating material.

[0008] Furthermore, the number of fans in the negative pressure filtration system is 4, and the number of fans designed is not limited to 4 according to the application situation, and the fans are required to be symmetrically distributed.

[0009] Furthermore, the gas channel of the composite plasma discharge device refers to the gas passing through a plurality of long strip through holes opened at the upper lower ends of the long sides of the cavity wall shell of the discharge device, flowing through the gas through holes on the special-shaped plate D in the discharge module II, and then through the return baffle passage formed by the special-shaped plates C and D, flowing from the rectangular through hole at the center position of the special-shaped plate C into the gas uniform flow chamber formed by the special-shaped plate C and the special-shaped plate B, and then flowing from the holes on the special-shaped plate B into the rectangular groove on the lower surface of the special-shaped plate A, and then flowing out from the cylindrical groove on the upper surface of the special-shaped plate A into the holes on the side wall of the hollow cylindrical electrode, passing through the porous electrode plate and the fan and finally flowing out from the biofilm. The entire gas flow process constitutes the gas flow channel of the composite plasma discharge device.

[0010] Furthermore, the porous electrode plate is located directly below the fan position in the negative pressure system, and its geometric dimensions are consistent with the edge of the fan fixing plate. One side wall is provided with a protruding terminal, and a through hole is provided in the middle of the porous electrode plate. The through holes are arranged in an array, the through holes have the same aperture, and there are threads inside the through holes. The through holes are all located below the fan, that is, the fan completely covers the bottom, and the porous electrode plate is made of metal as a whole.

[0011] Furthermore, the upper end of the cylindrical electrode has a thread, the size of which matches the inner thread of the porous electrode plate hole. The interior of the cylindrical electrode is hollow from top to bottom, and an array of holes is opened on the side wall of the cylindrical electrode. The holes pass through the side wall of the cylindrical electrode. The lower end of the cylindrical electrode is connected to multiple triangular thin sheets, and the thin sheets are all inclined toward the central axis of the cylindrical electrode, forming a conical structure at the lower end. This structure can be concave inward when it comes into contact with hard objects. The cylindrical electrode and the triangular thin sheets are made of metal.

[0012] Furthermore, the size of the special-shaped plate A is consistent with the edge size of the upper porous electrode plate. The special-shaped plate A is a plate pressed by mesoporous adsorption material and catalytic material. A cylindrical groove is opened on its upper surface, which is coaxial with the holes of the porous electrode plate, and the cylindrical diameter is slightly larger than the diameter of the cylindrical electrode. There is a conical protrusion at the bottom of the cylindrical groove, which is consistent with the size of the cylindrical electrode. The rest of the upper surface is a dense film (i.e., the gas can only flow out from the cylindrical groove). A rectangular groove is opened on the lower surface of the special-shaped plate A, and the position of the groove is alternately staggered with the holes on the upper surface. Neither the groove on the lower surface nor the holes on the upper surface completely penetrate the special-shaped plate. The rest of the lower surface is a dense film (i.e., the gas can only flow in from the rectangular groove).

[0013] Furthermore, the size of the special-shaped plate B is consistent with the edge size of the main body of the special-shaped plate A above. There are multiple rows of circular holes hollowed out in the central area of ​​the special-shaped plate B. The center positions of the multiple holes are arranged linearly, and the aperture increases successively from the middle arrangement position to the arrangement positions on both sides. The holes with the same aperture are arranged to correspond to the groove positions on the lower surface of the special-shaped plate A above. The two sides of the special-shaped plate B are symmetrically provided with external extensions, and the extensions are provided with circular holes. The holes near the special-shaped plate B are fixed with spring fixing rods, and the holes far away are connected to the ground, which is a grounding terminal. The special-shaped plate B is made of metal.

[0014] Furthermore, the size of the special-shaped plate C is consistent with the edge size of the main body of the special-shaped plate B above, and a rectangular groove is engraved on the upper surface. The rectangular area presented by the groove covers the porous array on the special-shaped plate B as a whole. The lower surface of the special-shaped plate C is a plurality of rectangular metal plates arranged at equal intervals. There is a rectangular hollow at the center of the special-shaped plate C. The size of the rectangle is the same as the edge size of the rectangular metal plate on the lower surface. The depth of the hollow reaches slightly below the top of the rectangular metal plate in the center of the lower surface, and a certain gap is formed between the top of the metal plate and the lower surface of the special-shaped plate C. The special-shaped plate C is made of metal.

[0015] Furthermore, the special-shaped plate D is H-shaped, and there are multiple equally spaced rectangular metal plates on the upper surface of the H. The rectangular metal plates are the same size as the rectangular metal plates on the lower surface of the special-shaped plate C, and their height is slightly lower than the edge plates on both sides of the special-shaped plate D, so that the rectangular metal plates on the upper surface of the special-shaped plate D and the rectangular metal plates on the lower surface of the special-shaped plate C form an intersecting arrangement. An array of equally spaced circular holes is opened at the crossbeam position of the special-shaped plate D, and the position of the circular hole array corresponds to the gap between the cross-arranged metal plates. Rectangular through holes are opened at the lower ends of both sides of the H-shaped edge below the special-shaped plate D, and the special-shaped plate D is made of metal.

[0016] Furthermore, the long side of the rectangular plate at the lower end of the special-shaped electrode is slightly shorter than the long side of the special-shaped plate D, and each side is shorter by the thickness of the edge of the special-shaped plate D, so that the movable grounding electrode can move up and down. A rectangular terminal is pulled out along the center position on one side of the short side of the special-shaped electrode, and a circular hole is left on the terminal. The size of the pulled-out terminal and the hole position are the same as the size of the terminal and the hole position on the upper porous special-shaped electrode. The terminal at this location is connected to the high voltage. There is a columnar metal rod array on the upper surface of the special-shaped electrode. The axial position of the columnar metal rod array corresponds to the axial position of the through hole of the crossbeam of the special-shaped plate D, and the diameter of the metal rod is smaller than the diameter of the through hole. The length of the metal rod is smaller than the depth of the cross-arranged cavity formed by the rectangular metal plate on the upper surface of the special-shaped plate D and the rectangular metal plate on the lower surface of the special-shaped plate C. The special-shaped electrode is fixed to the cavity wall shell of the entire oscillation-regulated composite plasma discharge device.

[0017] Furthermore, the cavity wall shell is a hollow rectangular shell, which completely encloses the negative pressure filtration system, discharge module I, and discharge module II. Rectangular holes are opened at the center position of the upper end of one side of the short side wall and the center position of the bottom end, respectively fixing the upper porous special-shaped electrode terminal and the lower special-shaped electrode terminal. Long rectangular through holes are opened at the center position of both sides of the long side wall, and their width is relative to the extension of the rectangular block on the special-shaped plate B. The rectangular block on the special-shaped plate B extends out from here. Multiple long through holes are opened at the upper position of the lower end of both sides of the long side of the cavity wall shell, and the cavity wall shell is made of insulating material.

[0018] Furthermore, the oscillation driving module is composed of a spring and a connecting rod. The connecting rod passes through the reserved channel on the special-shaped plate B and is fixed on the cavity wall shell of the composite plasma discharge device. The spring is coaxial with the connecting rod, and the inner diameter is similar to the outer diameter of the connecting rod. They are respectively fixed to the upper end fixed terminal and the upper surface of the reserved channel on the special-shaped plate B, as well as the lower end fixed terminal and the lower surface of the reserved channel on the special-shaped plate B.

[0019] The beneficial effects of the present invention compared with the prior art are:

[0020] (1) Low energy consumption, high efficiency, low discharge power, and good application treatment effect;

[0021] (2) Multiple discharge modes, with strong universal application.

[0022] The cylindrical electrode in the discharge module I is fixed on the porous electrode plate, the porous electrode is fixed on the cavity wall shell and cannot be moved, and the special-shaped plates A, B, C and D constitute an oscillating electrode that can move up and down. 1) The cylindrical electrode is located above the hole of the special-shaped plate A, and the triangular metal sheet at the lower end of the cylindrical electrode forms a filamentary discharge with the special-shaped hole, which can realize the temperature control of the catalytic material in the special-shaped plate A and the adsorption and desorption treatment of the mesoporous material and has a certain bactericidal effect; 2) The cylindrical electrode is partially placed in the hole of the special-shaped plate A, and the triangular metal sheet at the lower end of the cylindrical electrode forms a filamentary discharge with the side wall of the special-shaped hole and the conical protrusion below. The effect is similar to 1). The side wall of the cylindrical electrode and the side wall of the cylindrical hole form a filamentary discharge under a small gap, generating a synergistic effect between active species and catalysts, and enhancing the filamentary discharge sterilization effect of the lower end metal sheet; 3) The cylindrical electrode is completely placed in the hole of the special-shaped plate A. Under the action of the conical groove at the bottom of the cylindrical groove, the triangular metal sheet is concave toward the inside of the cylindrical electrode. The discharge form is only the filamentary discharge formed by the side wall of the cylindrical electrode and the side wall of the cylindrical hole under a small gap. The sterilization effect is completely achieved by the synergistic effect of the discharge active species and the catalyst. The discharge is strong, the treatment area is large, and the treatment efficiency is high.

[0023] The shaped electrodes of discharge module II are fixed to the cavity wall housing. Shaped sheets A, B, C, and D form an oscillating electrode that can move up and down. 1) An array of cylindrical shaped electrode rods on the upper surface of the shaped electrode is located below the hole in shaped sheet D. The front ends of the electrode rods and the edge of the hole generate filamentary discharges, which have a certain bactericidal effect and activate the gas. 2) The array of cylindrical shaped electrode rods on the upper surface of the shaped electrode is partially submerged in the hole in shaped sheet D, that is, partially inserted into the return gas channel formed by shaped sheets D and C. Discharge is generated at the edge of the hole in shaped sheet D and within the channel between the metal rods and the return metal plate, enhancing the discharge sterilization effect and gas activation. 3) The metal rods are submerged to the maximum extent possible in the hole in shaped sheet D, increasing the discharge area between the metal rods and the return metal plate channel, enhancing the discharge treatment effect. The discharge effect is similar to that in 2). Under the synergistic effect of multiple discharge modes of discharge module I and discharge module II, it can be applied to the treatment of gases with low to high concentrations of microorganisms or organic components, with low energy consumption, high efficiency and strong universal application.

[0024] (3) Oscillation regulation, high stability and strong controllability. Special-shaped plate A, special-shaped plate B, special-shaped plate C and special-shaped plate D constitute an oscillating electrode, which is driven by an oscillation driving module to realize oscillation regulation of discharge module I and discharge module II. Discharge module I is compressed and discharge module II is stretched. Gas flows in from the long strip through-holes on the side wall of the cavity shell. Discharge module II is in discharge mode 1), discharge module I is in discharge mode 3), discharge module II weakens the discharge treatment effect, realizes gas activation and certain sterilization effect, discharge module I strengthens the discharge treatment effect, realizes desorption and synergistic effect with the catalyst for strong sterilization; discharge module I is stretched and discharge module II is compressed, discharge module II is in discharge mode 3), discharge module I is in discharge mode 1), in the special-shaped plate Due to the special design of material D, gas cannot flow in from the long strip through-holes on the side wall of the cavity shell. Driven by oscillation and under the action of negative pressure, discharge module II strengthens the discharge treatment effect, and discharge module I weakens the sterilization treatment effect, thereby realizing the catalytic and adsorption effect of special-shaped plate A; in other tensile states of the spring, discharge module II is in discharge mode 2), and discharge module I is in discharge mode 2), and the effect is between the two. Under the action of oscillation regulation, the movement of the oscillating suspended electrode causes the discharge mode to continuously change, and the discharge ablation at the fixed position of the electrode is weakened, and the discharge is highly controllable. Under the switching treatment of multiple treatment modes such as gas activation, discharge enhancement, catalytic adsorption, and desorption discharge catalysis, the effect is high and the effect is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] Figure 1 This is a structural diagram of the appearance of the device of the present invention;

[0027] Figure 2It is a schematic diagram of the internal structure of the device of the present invention;

[0028] Figure 3 It is a schematic diagram of the bottom of the device of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure and conductive properties of the special-shaped plate A;

[0030] Figure 5 This is a schematic diagram of the structure of special-shaped plate B;

[0031] Figure 6 This is a schematic diagram of the structure of the special-shaped plate C;

[0032] Figure 7 This is a schematic diagram of the structure of special-shaped plate D;

[0033] Figure 8 It is a schematic diagram of the special-shaped electrode structure;

[0034] Figure 9 It is a schematic diagram of the cylindrical electrode structure;

[0035] Figure 10 is a schematic diagram of the porous electrode plate structure;

[0036] Figure 11 This is a schematic diagram of the three discharge modes of discharge module I;

[0037] Figure 12 This is a schematic diagram of the three discharge modes of discharge module II.

[0038] In the figure: 1. Filter membrane, 2. Fan, 3. Discharge module I, 3-1. Porous electrode plate, 3-2. Cylindrical electrode, 3-3. Special-shaped plate A, 4. Special-shaped plate B, 5. Discharge module II, 5-1. Special-shaped plate C, 5-2. Special-shaped plate D, 5-3. Special-shaped electrode, 6. Cavity wall shell, 7. Cavity wall shell fixed terminal A, 8. Oscillation drive module, 8-1. Spring A, 8-2. Fixed rod, 8-3. Spring B, 9 Cavity wall shell fixed terminal B, 10. Cavity wall shell ventilation channel, 11. Special-shaped plate B grounding terminal, 12. Porous electrode plate high-voltage terminal, 13. Special-shaped electrode high-voltage terminal. DETAILED DESCRIPTION

[0039] The present invention is described in detail below by specific examples, but the scope of protection of the present invention is not limited. Unless otherwise specified, the experimental methods adopted in the present invention are all conventional methods, and the experimental equipment, materials, reagents, etc. used can be obtained from commercial channels.

[0040] Example 1

[0041] The design structure of the present invention mainly includes a filter membrane 1, a fan 2, a discharge module I3, a special-shaped plate B4, a discharge module II5, a cavity wall shell 6, a cavity wall shell fixed terminal A7, an oscillation drive module 8, a cavity wall shell fixed terminal B9, a cavity wall shell ventilation channel 10, a special-shaped plate B grounding terminal 11, a porous electrode plate high-voltage end 12, and a special-shaped electrode grounding terminal 13.The filter membrane 1 is fixed to the uppermost end of the cavity wall shell 6, and the fan 2 is located vertically directly below the filter membrane 1 and is evenly and symmetrically distributed. There is a small gap between the filter membrane 1 and the fan 2. The discharge module I3 is located vertically directly below the fan 2. There is a certain gap between the discharge module I3 and the fan 2. The design structure of the discharge module I3 mainly includes a porous electrode plate 3-1, a cylindrical electrode 3-2, a special-shaped plate A3-3, and a special-shaped plate B4 from top to bottom. The porous electrode plate 3-1 is located at the uppermost end of the discharge module I3 and is fixed to the cavity wall shell 6, wherein the porous electrode plate high-voltage terminal 12 is outside the cavity wall shell 6, the cylindrical electrode 3-2 is fixed in the hole of the porous electrode plate 3-1, and the special-shaped plate A3-3 is fixed to the cavity wall shell 6. -3 is located vertically directly below the porous electrode plate 3-1, and there is a certain gap between the special-shaped plate A3-3 and the porous electrode plate 3-1. The special-shaped plate B4 is located vertically directly below the special-shaped plate A3-3, and the upper end of the special-shaped plate B4 is tightly connected to the lower end of the special-shaped plate A3-3. A special-shaped plate B grounding terminal 11 is provided on both sides of the special-shaped plate B4. The special-shaped plate B grounding terminal 11 extends from the cavity wall shell 6 to the outside of the cavity wall shell through the side wall channel 10 of the cavity wall shell. The discharge module II5 is located vertically directly below the discharge module I3. The design structure of the discharge module II5 mainly includes the special-shaped plate B4, the special-shaped plate C5-1, the special-shaped plate D5-2, and the special-shaped electrode 5-3 from top to bottom. , the special-shaped plate C5-1 is located vertically directly below the special-shaped plate B4, and the upper end of the special-shaped plate C5-1 is tightly connected to the lower end of the special-shaped plate B4, the special-shaped plate D5-2 is located vertically directly below the special-shaped plate C5-1, and the upper end of the frame edge of the special-shaped plate D5-2 is tightly connected to the lower end of the special-shaped plate C5-1, the special-shaped electrode 5-3 is located vertically directly below the special-shaped plate D5-2, and the special-shaped electrode 5-3 is fixed on the cavity wall shell 6, the special-shaped electrode high-voltage terminal 13 is located outside the cavity wall shell 6, and is on the same side as the porous electrode plate high-voltage terminal 12, the oscillation drive module 8 is located on both sides of the opening part of the side wall of the cavity wall shell 6, and the oscillation drive module 8 is designed with a structure From top to bottom, it mainly includes spring A8-1, fixing rod 8-2, and spring B8-3. The two ends of spring A8-1 are respectively fixed to the fixed terminals on the cavity wall shell A7 and the grounding terminal 11 of the special-shaped plate B. The two ends of spring B8-3 are respectively fixed to the fixed terminals on the cavity wall shell B9 and the grounding terminal 11 of the special-shaped plate B. The two ends of the fixing rod 8-2 are respectively fixed to the fixed terminals A7 and B9 of the cavity wall shell, and pass through the fixed terminal hole on the grounding terminal 11 of the special-shaped plate B. The spring A8-1 and the spring B8-3 are coaxial with the fixing rod 8-2, and the spring A8-1 and the spring B8-3 are covered on the outside of the fixing rod 8-2.

[0042] The filter membrane 1 is a molecular biological filter membrane that can filter impurities, bacteria and other harmful substances in the air and is easy to disassemble and replace regularly.

[0043] The fan 2 is an adjustable fan that can realize forward rotation, reverse rotation and speed regulation. This embodiment uses four fans, which are symmetrically distributed vertically directly below the filter membrane 1. The fan reverses to achieve negative pressure inside the discharge device.

[0044] The discharge module I3 is composed of a porous electrode plate 3-1, a cylindrical electrode 3-2, a special-shaped plate A3-3 and a special-shaped plate B4.

[0045] The porous electrode plate 3-1 (including the porous electrode plate high-voltage terminal 9) is made of a conductive material. This embodiment uses copper material. The porous electrode plate 3-1 uses 12 holes. The 12 holes completely penetrate the porous electrode plate 3-1. The center positions of the holes are evenly spaced horizontally and vertically. There are threads in the holes. The edge of the porous electrode plate 3-1 is designed with a snap fastener and fixed to the cavity wall shell 6. The porous electrode plate high-voltage terminal 9 is outside the cavity wall shell 6. The porous electrode plate high-voltage terminal 9 can be connected to a high-voltage power supply or the earth to form a high-voltage electrode or a ground electrode. In this embodiment, the porous electrode plate high-voltage terminal 9 is connected to a high-voltage power supply to provide high voltage to the porous electrode plate 3-1.

[0046] The cylindrical electrode 3-2 is made of conductive material. In this embodiment, copper material is used. A thread is provided at the connection between the upper end of the cylindrical electrode 3-2 and the hole of the porous electrode plate 3-1. The cylindrical electrode 3-2 is hollow. An array of holes with equal spacing is opened on the side surface of the cylindrical electrode 3-2. The holes penetrate into the hollow part. The lower end of the cylindrical electrode 3-2 is composed of multiple triangular copper sheets. The copper sheets are all inclined toward the axis of the cylindrical electrode 3-2. This design realizes that the lower end of the cylindrical electrode 3-2 When the conical protrusion in the hole of the special-shaped plate A3-3 wants to touch it during the oscillation process, the copper sheet can be concave inward, and the opening of the hollow channel at the lower end can be completely sealed by the conical protrusion in the hole of the special-shaped plate A3-3. In this embodiment, 12 cylindrical electrodes 3-2 are used, corresponding to the porous channels on the porous electrode plate 3-1, and under the action of negative pressure, gas can flow in from the lower end opening and side wall channels of the cylindrical electrode 3-2, and flow out from the upper end opening.

[0047] The special-shaped plate A3-3 is a composite material. This embodiment is made of mesoporous ceramic adsorption particles and titanium dioxide powder mixed with copper powder. The upper surface, side walls and conical surface of the bottom of the cylindrical groove on the upper surface of the special-shaped plate A3-3 are all coated with a dense oxide layer, which plays an insulating role. At the same time, the gas cannot be precipitated from the dense oxide layer. The side walls, lower surface and inner wall of the rectangular groove on the upper surface of the special-shaped plate A3-3 have no dense oxide layer and are conductive. The gas can flow and precipitate from the gaps of the pressed composite material. The number of cylindrical holes on the upper surface of the special-shaped plate A3-3 in this embodiment is 12, which is the same as the number of cylindrical electrodes 3-2. Each cylindrical hole and the conical protrusion at the bottom of the cylindrical hole are coaxial with the cylindrical electrode, and the diameter of each cylindrical hole and the conical protrusion at the bottom of the cylindrical hole are slightly larger than the diameter of the cylindrical electrode.

[0048] The special-shaped plate B4 is a conductive material and is the common grounding electrode for the discharge module I3 and the discharge module II5. Copper is used in this embodiment. The upper surface of the special-shaped plate B4 is provided with through holes. The two rows in the middle of the long side are small-aperture holes, and the two sides of the long side are large-aperture holes. The number of small holes is designed to be 12 in this embodiment, and the number of large holes is 12. The position of each row of holes is consistent with the position of the rectangular groove on the lower surface of the special-shaped plate A3-3, and each rectangular groove covers all the holes in the row. There are extensions on both sides and two holes each. The inner hole is used for fixing the fixing rod and the spring, and the outer hole is the grounding terminal 11 of the special-shaped plate B. This terminal can be connected to the ground wire or the high-voltage power supply. This embodiment uses the connection ground wire.

[0049] The discharge module II5 is composed of a special-shaped plate B4, a special-shaped plate C5-1, a special-shaped plate D5-2, and a special-shaped electrode 5-3.

[0050] The special-shaped plate C5-1 is a conductive material, and copper is used in this embodiment. A rectangular groove is provided on the upper surface of the special-shaped plate C5-1, and a long rectangular through hole is provided at the center of the rectangular groove, which passes through the special-shaped plate C5-1 to a position slightly below the top of the rectangular baffle on the lower surface. The size of the rectangular edge groove is consistent with the edge size of the rectangular plate on the lower surface of the special-shaped plate C5-1. Gas can flow from the lower surface to the upper surface through the gap. A rectangular plate is designed on the lower surface of the special-shaped plate C5-1, and the rectangular plates are arranged at equal intervals. The number used in this embodiment is 5.

[0051] The upper half of the special-shaped plate D5-2 is a conductive material. In this embodiment, the upper half is copper and the lower half is polytetrafluoroethylene. The special-shaped plate D5-2 is H-shaped, with a rectangular plate on the upper surface. The size of the rectangular plate is consistent with the rectangular plate on the lower surface of the special-shaped plate C5-1. The edge plate is slightly longer than the middle plate. The plates and beams on the upper surface are made of copper. There are two rows of circular through holes in the beams between the plates, and the number of through holes in each row is 4. The rectangular plate on the upper surface of the special-shaped plate D5-2 and the rectangular plate on the lower surface of C5-1 are combined to form an alternating arrangement. The rectangular plate on the lower surface of C5-1 is opposite to the special-shaped plate D5- 2 In the middle position of the two rows of through holes, gas can flow in through the hole, flow along the alternating circuit formed by the combination of rectangular plates, and flow out through the rectangular through hole at the center position of the special-shaped plate C5-1. The lower half of the special-shaped plate D5-2 is an insulating material, and the upper half of the H-shaped edge plate of the lower half is provided with a rectangular through hole. The special-shaped plates A, B, C, and D are combined into a whole, and vibrate up and down in conjunction with the external vibration drive module. The upper half of the H-shaped edge plate of the lower half of the special-shaped plate D5-2 is provided with a rectangular through hole to cooperate with the ventilation channel 10 of the cavity wall shell to realize the opening and closing of the gas passage under vibration drive.

[0052] The shaped electrode 5-3 is made of a conductive material, preferably copper. Copper rods are provided on the upper surface of the shaped electrode 5-3 at equal intervals in the horizontal and vertical directions. In this embodiment, 10 rods are used in each row, with 4 rows. The copper rods correspond to the holes of the shaped plate D5-2, are coaxial, and have a diameter slightly smaller than the diameter of the holes of the shaped plate D5-2. During the oscillating motion, a gap is left after the copper rods enter the holes, allowing gas to flow in. The shaped electrode 5-3 is fixed to the cavity wall shell 6. The shaped electrode high-voltage terminal 13 is outside the cavity wall shell 6, on the same side as the porous electrode plate high-voltage terminal 12, and can be connected to high voltage or the ground. In this embodiment, it is connected to a high-voltage power supply. The corresponding two edges of the shaped electrode 5-3 with the porous electrode plate high-voltage terminal 12 are the same size as the corresponding edges of the shaped plate D5-2, and the other edge is slightly smaller than the corresponding edge of the shaped plate D5-2, allowing the shaped plate D5-2 to move up and down, and cooperate with the cavity wall shell ventilation channel 10 to realize the opening and closing of the gas passage under vibration drive.

[0053] The oscillation driving module 8 is composed of a spring A8-1, a fixing rod 8-2, and a spring B8-3.

[0054] Spring A8-1 has a greater spring constant than spring B8-3. The ends of spring A8-1 are fixed to the fixed terminals A7 and B1 of the cavity wall housing, respectively. The ends of spring A8-3 are fixed to the fixed terminals B9 and B1 of the cavity wall housing, respectively. The ends of fixing rod 8-2 are fixed to fixed terminals A7 and B9 of the cavity wall housing, respectively, and pass through the fixed terminal hole in the grounding terminal 11 of the shaped plate B. Springs A8-1 and B8-3 are coaxial with fixing rod 8-2 and wrap around the outside of fixing rod 8-2. Springs A8-1 and B8-3, together with the shaped plates A, B, C, and D, form a suspended electrode that oscillates up and down. This oscillation can be driven by a fixed oscillator formed by the gap between the locomotive and the track, or by an externally connected oscillator.

[0055] Example 2

[0056] The present invention works as follows:

[0057] From bottom to top, the external driving force drives the oscillation driving module to realize up and down oscillation together with the suspended electrode composed of the special-shaped plates A, B, C, and D. During the oscillation, the cavity wall shell ventilation channel 10 cooperates with the special-shaped plate D5-2 to realize the opening and closing of the gas passage. The gas flows in through the cavity wall shell ventilation channel 10 at the same time, the spring B8-3 is compressed, and the spring A8-1 is stretched. The discharge module Ⅱ5 is in discharge mode 3. The metal rod on the special-shaped electrode 5-3 is inserted into the middle of the alternating rectangular metal plates along the special-shaped plate D5-2. The gas flows along the gap, and the discharge occurs in the gap between the metal rod and the alternating rectangular metal plates. The discharge area increases and the discharge treatment effect is enhanced. The gas flows into the special-shaped plate C5-1 and the special-shaped plate through the central rectangular through hole of the alternating rectangular metal plates through the alternating rectangular metal plates. The gas flows into the gap between the special-shaped plate B4 and then flows into the working area of ​​the discharge module Ⅰ3 through the through holes of the special-shaped plate B4. The two middle rows of the long sides of the through holes on the special-shaped plate B4 are small-aperture holes, and the two sides of the long sides are large-aperture holes. Under the action of negative pressure, a simple uniform flow of gas distribution is achieved, and the gas then enters the discharge module Ⅰ3 from the special-shaped plate A3-3. Since it is made of catalyst, mesoporous adsorbent and copper, the gas flows into the discharge module Ⅰ3 from the rectangular groove on the lower surface and is adsorbed on the mesoporous material inside the special-shaped plate A3-3. The gas is in a gathering process. At the same time, the lower electrode of the discharge module Ⅰ3 is away from the high-voltage electrode, and its discharge mode is in discharge mode 1. The discharge only occurs at the front end of the cylindrical electrode 3-2. The discharge activates and preheats the catalyst of the special-shaped plate A3-3 and processes a small amount of gas. Under oscillation drive, spring B8-3 is stretched, spring A8-1 is compressed, and the vent hole 10 of the cavity wall shell cooperates with the special-shaped plate D5-2 to realize the closure of the gas passage. The discharge module II5 is in discharge mode 1. The metal rod on the special-shaped electrode 5-3 is away from the hole of the special-shaped plate D5-2. The discharge occurs at the front end of the metal rod on the special-shaped electrode 5-3, and the gas remaining in the cavity is treated to a certain extent. At the same time, the residual gas in the closed cavity flows along the same gas flow channel to the discharge module I3. Under oscillation drive, the cylindrical electrode 3-2 is immersed in the cylindrical hole on the upper surface of the special-shaped plate A3-3, and its front end is in contact with the conical convex bottom. It cooperates to block the front-end gas passage, and the discharge occurs in the gap between the cylindrical electrode 3-2 and the side surface of the cylindrical groove of the special-shaped plate A3-3. The discharge area increases and the discharge intensity is enhanced. The enhanced discharge realizes the desorption of the adsorbed gas in the mesoporous adsorbent, and synergistically acts with the catalyst to enhance the treatment of the gas components therein. The treated gas is then filtered out through the filter membrane 1 by negative pressure along the holes on the side surface of the cylindrical electrode 3-2. Under oscillation drive, multiple discharge modes are switched in coordination to achieve low-energy consumption and high-efficiency application processing, with strong application universality. Under the changes of multiple discharge modes, the electrode ablation degree is low, the discharge is stable and reliable, and the controllability is high.

[0058] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. An oscillating and controlled composite plasma discharge device, characterized in that: The filter membrane (1) is fixed to the uppermost end of the cavity wall shell (6), the fan (2) is located vertically directly below the filter membrane (1), and is evenly and symmetrically distributed. There is a small gap between the filter membrane (1) and the fan (2). The discharge module I (3) is located vertically directly below the fan (2), and there is a certain gap between the discharge module I (3) and the fan (2). The design structure of the discharge module I (3) mainly includes a porous electrode plate (3-1), a cylindrical electrode (3-2), a special-shaped plate A (3-3), and a special-shaped plate B (4) from top to bottom. The porous electrode plate (3-1) is located at the uppermost end of the discharge module I (3) and is fixed to the cavity wall shell (6), wherein the porous electrode plate high-voltage terminal (12) is outside the cavity wall shell (6), and the cylindrical electrode (3-2) is fixed to the porous electrode plate. In the hole of the electrode plate (3-1), the special-shaped plate A (3-3) is located vertically directly below the porous electrode plate (3-1), and there is a certain gap between the special-shaped plate A (3-3) and the porous electrode plate (3-1). The special-shaped plate B (4) is located vertically directly below the special-shaped plate A (3-3), and the upper end of the special-shaped plate B (4) is tightly connected to the lower end of the special-shaped plate A (3-3). A special-shaped plate B grounding terminal (11) is provided on both sides of the special-shaped plate B (4), and the special-shaped plate B grounding terminal (11) extends from the side wall channel (10) of the cavity wall shell to the outside of the cavity wall shell (6). The discharge module II (5) is located vertically directly below the discharge module I (3). The design structure of the discharge module II (5) mainly includes the special-shaped plate B from top to bottom. (4), special-shaped plate C (5-1), special-shaped plate D (5-2), special-shaped electrode (5-3), special-shaped plate C (5-1) is located vertically directly below special-shaped plate B (4), and the upper end of special-shaped plate C (5-1) is tightly connected to the lower end of special-shaped plate B (4), special-shaped plate D (5-2) is located vertically directly below special-shaped plate C (5-1), and the upper end of the frame edge of special-shaped plate D (5-2) is tightly connected to the lower end of special-shaped plate C (5-1), special-shaped electrode (5-3) is located vertically directly below special-shaped plate D (5-2), and special-shaped electrode (5-3) is fixed on the cavity wall shell (6), special-shaped electrode high-voltage terminal (13) is located outside the cavity wall shell (6), and is connected to the porous electrode plate high-voltage terminal (12) On the same side, the oscillation drive module (8) is located on both sides of the opening portion of the side wall of the cavity wall shell (6). The design structure of the oscillation drive module (8) mainly includes a spring A (8-1), a fixing rod (8-2), and a spring B (8-3) from top to bottom. The two ends of the spring A (8-1) are respectively fixed to the cavity wall shell fixing terminal A (7) and the fixing terminal on the special-shaped plate B grounding terminal (11). The two ends of the spring B (8-3) are respectively fixed to the cavity wall shell fixing terminal B (9) and the fixing terminal on the special-shaped plate B grounding terminal (11). The two ends of the fixing rod (8-2) are respectively fixed to the cavity wall shell fixing terminal A (7) and the cavity wall shell fixing terminal B (9), and pass through the fixing terminal hole on the special-shaped plate B grounding terminal (11).Spring A (8-1) and spring B (8-3) are coaxial with the fixed rod (8-2), and spring A (8-1) and spring B (8-3) are covered on the outside of the fixed rod (8-2).

2. The oscillating controlled composite plasma discharge device according to claim 1, characterized in that: The fans (2) are adjustable fans. There are four fans (2) in number, and they are symmetrically distributed vertically directly below the filter membrane (1).

3. The oscillating controlled composite plasma discharge device according to claim 1, characterized in that: The porous electrode plate (3-1) is made of copper material and has 12 holes. The 12 holes completely penetrate the porous electrode plate (3-1). The center positions of the holes are evenly spaced in the horizontal and vertical directions, and there are threads in the holes.

4. The oscillating controlled composite plasma discharge device according to claim 1, wherein: The columnar electrode (3-2) is made of a conductive material. A thread is provided at the connection between the top end of the columnar electrode (3-2) and the hole of the porous electrode plate (3-1). The columnar electrode (3-2) is hollow. An array of holes distributed at equal intervals is provided on the side surface of the columnar electrode (3-2). The holes penetrate into the hollow part. The bottom end of the columnar electrode (3-2) is composed of multiple triangular copper sheets, and the copper sheets are all inclined toward the axis of the columnar electrode (3-2).

5. The oscillating controlled composite plasma discharge device according to claim 1, characterized in that: The special-shaped plate A (3-3) is made of mesoporous ceramic adsorption particles and titanium dioxide powder mixed with copper powder. The upper surface, side wall and conical surface of the bottom of the cylindrical groove on the upper surface of the special-shaped plate A (3-3) are all coated with a dense oxide layer. The side wall of the cylindrical groove on the upper surface, the lower surface and the inner wall of the rectangular groove on the lower surface of the special-shaped plate A (3-3) have no dense oxide layer. Each cylindrical hole and the conical protrusion at the bottom of the cylindrical hole of the special-shaped plate A (3-3) are coaxial with the cylindrical electrode, and the diameter of each cylindrical hole and the conical protrusion at the bottom of the cylindrical hole are slightly larger than the diameter of the cylindrical electrode.

6. The oscillating controlled composite plasma discharge device according to claim 1, characterized in that: The special-shaped plate B (4) is made of conductive material. The upper surface of the special-shaped plate B (4) is provided with through holes. The two rows of holes in the middle of the long side are small-diameter holes, and the two rows of holes on the two sides of the long side are large-diameter holes. The position of each row of holes is consistent with the position of the rectangular groove on the lower surface of the special-shaped plate A (3-3), and each rectangular groove covers all the holes in the row. There are extensions on both sides and two holes are opened on each side.

7. The oscillating controlled composite plasma discharge device according to claim 1, characterized in that: The special-shaped plate C (5-1) is made of conductive material, and a rectangular groove is opened on the upper surface of the special-shaped plate C (5-1). A long rectangular through hole is opened at the center of the rectangular groove, which passes through the special-shaped plate C (5-1) to a position slightly below the top of the rectangular baffle on the lower surface. The size of the rectangular edge groove is consistent with the edge size of the rectangular plate on the lower surface of the special-shaped plate C (5-1). A rectangular plate is designed on the lower surface of the special-shaped plate C (5-1), and the rectangular plates are arranged at equal intervals.

8. The oscillating controlled composite plasma discharge device according to claim 1, characterized in that: The upper half of the special-shaped plate D (5-2) is made of conductive material, and the lower half is made of polytetrafluoroethylene. The special-shaped plate D (5-2) is H-shaped, with a rectangular plate on the upper surface. The size of the rectangular plate is consistent with the rectangular plate on the lower surface of the special-shaped plate C (5-1). The edge plate is slightly longer than the middle plate. Two rows of circular through holes are opened on the crossbeam between the plates. The rectangular plate on the upper surface of the special-shaped plate D (5-2) and the rectangular plate on the lower surface of C (5-1) are combined to form an alternating arrangement, and the rectangular plate on the lower surface of C (5-1) is exactly in the middle position of the two rows of through holes of the special-shaped plate D (5-2).

9. The oscillating controlled composite plasma discharge device according to claim 1, characterized in that: The special-shaped electrode (5-3) is made of conductive material. Copper rods are provided on the upper surface of the special-shaped electrode (5-3) at equal intervals in the horizontal and vertical directions. The copper rods correspond to the holes of the special-shaped plate D (5-2), are coaxial, and have a diameter slightly smaller than the diameter of the holes of the special-shaped plate D (5-2).

10. The oscillating controlled composite plasma discharge device according to claim 1, characterized in that: The spring constant of the spring A (8-1) is greater than that of the spring B (8-3).

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