Hexapole ring array plasma generating device for sterilization and disinfection

Abstract

The application discloses a six-pole ring plasma generating device for sterilization and disinfection, which is composed of a plasma generating area, a plasma activated water storage area and a plasma special power supply; the plasma generating area is composed of a fan, a single-pole high-voltage electrode column, a quartz tube, a six-pole grounding electrode column and a ring electrode fixing plate; the upper side wall of the plasma generating area is provided with a circular air hole in the center; the plasma activated water storage area is located below the plasma generating area and communicates with the plasma generating area; the left side wall of the plasma activated water storage area is provided with a circular water injection hole in the center, and the front side communicates with a water faucet. Gas enters the plasma generating area through the circular air hole and generates plasma under the action of high voltage. The gas carrying the plasma enters the plasma activated water storage area, so that ordinary water is changed into plasma activated water, and the plasma activated water can be taken through the water faucet.

Description

Technical Field

[0001] The present invention relates to the field of plasma sterilization and disinfection, in particular to a hexapole annular plasma generating device for sterilization and disinfection. Background Art

[0002] Plasma-activated water (PAW) is an emerging disinfection and sterilization technology. By exposing water to plasma, it generates substances rich in reactive oxygen and nitrogen. These substances possess strong oxidizing properties and can effectively kill bacteria, viruses, and other microorganisms when applied to surfaces such as objects or skin. Existing plasma generators commonly suffer from inadequate electrode design. Traditional electrode designs require high voltages to generate discharges, resulting in poor discharge uniformity and difficulty in generating efficient plasma.

[0003] At the same time, existing plasma generating devices have obvious defects in functional integration: most of them are not equipped with activated water storage areas and matching faucets, making it impossible to store and use activated water. Plasma-activated water is rich in hydroxyl radicals, reactive oxygen species and other substances, and is widely used in medical disinfection, agricultural irrigation, environmental governance and food processing. The functional deficiencies of existing devices have severely limited their usage scenarios; coupled with the lack of a gas flow acceleration device, the comprehensive performance and practical application value of the plasma generating device are further restricted.

[0004] Therefore, there is an urgent need to develop a plasma generating device with optimized electrode structure, high discharge efficiency, and integrated activated water storage function to solve the shortcomings of existing devices in preparation efficiency, storage convenience, etc. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings of existing plasma generators and address these issues by providing a hexapole annular plasma generator with an optimized electrode structure, high discharge efficiency, and integrated activated water storage. To achieve this objective, the present invention provides the following technical solutions:

[0006] A hexapole annular plasma generating device, characterized in that, from top to bottom and from right to left, it comprises a plasma generating area, a plasma activated water storage area and a plasma dedicated power supply;

[0007] The plasma generating area is composed of a fan, a single-pole high-voltage electrode column, a six-pole grounding electrode column, a quartz tube and a ring-shaped electrode fixing plate, the fan is one in number, the single-pole high-voltage electrode column is one in number, the six-pole grounding electrode column is six in number, the quartz tube is one in number, and the ring-shaped electrode fixing plate is one in number, a circular air hole is arranged at the center of the upper side wall of the plasma generating area, the fan is arranged below the circular air hole, the single-pole high-voltage electrode column is arranged below the fan and is nested outside the quartz tube, six grounding electrode columns are uniformly distributed outside the quartz tube to form the six-pole grounding electrode column, and the six grounding electrode columns are fixed on the ring-shaped electrode fixing plate, and the ring-shaped electrode fixing plate is made of an insulating hard plate.

[0008] The plasma activated water storage area is located below the plasma generating area and is in communication with the plasma generating area, a circular water injection hole is arranged at the center of the left side wall of the plasma activated water storage area, and the front side of the plasma activated water storage area is in communication with a water faucet.

[0009] Compared with the prior art, the six-pole ring array plasma generating device has the following beneficial effects:

[0010] The six-pole ring array plasma generating device has a fan device inside, which can accelerate the gas flow rate and improve the preparation efficiency of the plasma.

[0011] The six-pole ring array plasma generating device adopts a symmetrical structure design of the six-pole ring array electrode, thereby reducing the discharge starting voltage and improving the discharge uniformity.

[0012] The six-pole ring array plasma generating device is provided with a plasma activated water storage area and a water faucet, and the plasma activated water can be taken and used flexibly and conveniently, so that the plasma activated water can be used for sterilization and disinfection of objects or skin surfaces. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole schematic view of the six-pole ring array plasma generating device.

[0014] Figure 2 It is a split structure schematic view of the plasma generating area 1.

[0015] Figure 3 It is a structure schematic view of the plasma activated water storage area 2.

[0016] Figure 4 It is a structure schematic view of the plasma special power supply 3.

[0017] In the figure: 1, plasma generating area; 2, plasma activated water storage area; 3, plasma special power supply; 4, circular air hole; 5, fan; 6, single-pole high-voltage electrode column; 7, quartz tube; 8, six-pole grounding electrode column; 9, ring-shaped electrode fixing plate; 10, water injection hole; 11, water faucet. DETAILED DESCRIPTION

[0018] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings. In the various drawings, the same reference numerals represent the same components. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention.

[0019] In an embodiment of the present invention, to make the description clearer, the "upper side" direction is consistent with the direction of the plasma generating area 1, the "lower side" direction is consistent with the direction of the plasma activated water storage area 2, and the "left side" is consistent with the direction of the plasma dedicated power supply 3.

[0020] The overall schematic diagram of the hexapole annular plasma generator is as follows Figure 1 As shown, it includes a plasma generating area 1, a plasma activated water storage area 2 and a plasma dedicated power supply 3.

[0021] The schematic diagram of the split structure of the plasma generating area 1 is as follows Figure 2 As shown, the apparatus comprises a circular air hole 4, a fan 5, a monopolar high-voltage electrode column 6, a quartz tube 7, a hexapole grounding electrode column 8, and an annular electrode fixing plate 9. The fan 5 is located below the circular air hole 4, and the monopolar high-voltage electrode column 6 is located below the fan 5. The quartz tube 7 is nested outside the monopolar high-voltage electrode column 6. The multi-stage grounding electrode columns 8 are evenly distributed outside the quartz tube 7 and fixed to the annular electrode fixing plate 9. The present invention uses one high-voltage electrode column and six grounding electrode columns; the number of electrode columns can be selected according to actual needs. The monopolar high-voltage electrode column 6 is connected to the high voltage terminal of the plasma-dedicated power supply 3, and the hexapole grounding electrode column 8 is connected to the ground terminal of the plasma-dedicated power supply 3. The monopolar high-voltage electrode column 6 has a radius of 20 cm and a height of 80 cm. The quartz tube 7 has an inner radius of 25 cm, an outer radius of 30 cm, and a height of 80 cm. The hexapole grounding electrode column 8 has a radius of 5 cm and a height of 80 cm. The annular electrode fixing plate 9 has an inner radius of 40 cm, an outer radius of 50 cm, and a height of 1 cm.

[0022] The structural diagram of the ion activated water storage area 2 is as follows Figure 3 As shown, it is located below the plasma generating area 1, the ion activated water storage area 2 is connected to the plasma generating area 1, there is a water injection hole 10 on the left side, and a faucet 11 on the front side.

[0023] The plasma activated water storage area 2 is a rectangular hollow cavity with a length of 120 cm, a width of 100 cm and a height of 100 cm.

[0024] The plasma dedicated power supply 3 is as follows Figure 4As shown, it is located on the left side of the ion-activated water storage area 2 and outputs an AC or pulse voltage with a frequency of 5-30 kHz and a voltage of 5-10 kV.

[0025] Working principle: When the device is in working state, the gas enters the plasma generating area 1 through the circular air hole 4, and then enters between the monopolar high-voltage electrode column 6 and the hexapole grounded electrode column 8 in the plasma generating area 1. Under the action of the high voltage applied by the plasma-dedicated power supply 3, a dielectric barrier discharge is formed between the monopolar high-voltage electrode column 6 and the hexapole grounded electrode column 8 to generate plasma.

[0026] The plasma-carrying gas enters the plasma-activated water storage area 2. The presence of the plasma breaks some chemical bonds in the water molecules, generating a series of free radicals, reactive oxygen species, and other active substances, turning ordinary water into plasma-activated water. The plasma-activated water can then be taken out at any time through the tap 11.

[0027] When using the gaps between electrode columns to generate low-temperature plasma, the grounded electrode column, due to its thinner structural design, is easier to trigger discharge and requires a lower discharge voltage than traditional mesh or planar electrodes. The grounded electrode column has a six-fold rotationally symmetrical structure, which can eliminate directional deviations and ensure a high degree of uniformity in the discharge process. The grounded electrode column has two discharge modes: when the electrode tip is blocked, dielectric barrier discharge can be generated based on the quartz tube medium; when the electrode tip is exposed, both dielectric barrier discharge and arc discharge occur, and the discharge effect is enhanced by the tip effect. In addition, the number of grounded electrode columns can be adjusted according to actual needs to enhance the discharge efficiency, and the fan can be used to accelerate the gas flow rate to further increase the plasma generation rate.

[0028] The above embodiments are merely examples, intended to illustrate the core concepts of the present invention and its practical application effects, and are not intended to limit its scope. Any person having relevant knowledge in this technical field, without violating the basic spirit and core principles of the present invention, has the right to make adaptive adjustments or innovations to the above embodiments. Therefore, all individuals with common sense in this field, without departing from the core concepts and technical concepts described in the present invention, any equivalent modifications or innovations made should be deemed to fall within the scope of protection of the claims of the present invention.

Claims

1. A hexapole annular plasma generating device, characterized in that: From top to bottom and from right to left, they are the plasma generation area, plasma activated water storage area and plasma dedicated power supply; The plasma generating area is composed of a fan, a monopolar high-voltage electrode column, a quartz tube, a hexapole grounding electrode column, and an annular electrode fixing plate. The number of the fan is 1, the number of the monopolar high-voltage electrode column is 1, the number of electrodes of the hexapole grounding electrode column is 6, the number of the quartz tube is 1, and the number of the annular electrode fixing plate is 1. There is a circular air hole in the center of the upper side wall of the plasma generating area. The fan is located below the circular air hole. The monopolar high-voltage electrode column is located below the fan, and the quartz tube is nested outside. Six grounding electrode columns are evenly distributed outside the quartz tube to form a hexapole grounding electrode column. The six grounding electrode columns are fixed on the annular electrode fixing plate, and the annular electrode fixing plate is made of an insulating hard plate. The plasma activated water storage area is located below the plasma generating area and is connected thereto. A circular water injection hole is provided at the center of the left side wall of the plasma activated water storage area. The front side of the plasma activated water storage area is connected to a water tap. The plasma-specific power supply is located on the left side of the plasma-activated water storage area, and outputs an AC or pulse voltage with a frequency of 5-30 kHz and a voltage of 5-10 kV.

2. A method for preparing and storing plasma-activated water using the hexapole annular plasma generating device as claimed in claim 1: When the device is in operation, gas enters the plasma generating area through the circular air hole and then enters between the monopolar high-voltage electrode column and the hexapole grounded electrode column in the plasma generating area. Under the action of the high voltage applied by the plasma-dedicated power supply, a dielectric barrier discharge is formed between the monopolar high-voltage electrode column and the hexapole grounded electrode column, thereby generating plasma. The plasma-carrying gas enters the plasma-activated water storage area. The presence of plasma causes some chemical bonds in water molecules to break, generating a series of free radicals, reactive oxygen species and other active substances, turning ordinary water into plasma-activated water. The plasma-activated water can be taken out at any time through the tap.

Images