Method for Indicating the Operating Status of Plasma Distributed Electrode Tubes for Inner Wall Disinfection

Abstract

The application discloses a kind of plasma distributed electrode pipe operating state indication method for inner wall disinfection, it is applied to the disinfection device of pipe inner wall plasma based on multiple segment distributed electrode;Every low-voltage electrode between the plasma generation module and ground level is connected in series with a measurement capacitor and voltage measurement sensor for measuring the measurement capacitor;Multiple measurement capacitors, voltage sensor of measurement capacitor, processor for processing voltage data and indicator light constitute discharge indication module;The capacitance of measurement capacitor is much larger than the equivalent capacitance of electrode of plasma generation module, and the impedance value is much smaller than the equivalent impedance of electrode of plasma generation module;Voltage measurement sensor transmits the voltage value collected to the processor for processing voltage data, and then compares each measurement voltage received with the preset voltage value range, and the indicator light corresponding to the voltage value within the preset range is turned on, so as to ensure the disinfection effect of the whole machine device.

Description

Technical Field

[0001] This invention relates to the field of high-pressure plasma technology, and specifically to a method for indicating the operating status of a plasma distributed electrode tube used for inner wall disinfection. Background Technology

[0002] In daily life and work, the disinfection of the inner walls of long, thin tubes is frequently involved, such as gastroscopy. Gastroscopy utilizes a long, thin tube, about one centimeter in diameter, wrapped in black plastic and containing fiber optic cables. An endoscope is attached to the end of the tube and inserted through the patient's mouth into the esophagus, stomach, and duodenum. Strong light emitted from a light source is deflected by the fiber optic cable, allowing the doctor to clearly observe the health of various parts of the upper digestive tract from the other end. If necessary, a biopsy can be performed by inserting a clamp through a small hole in the endoscope. Therefore, sterilizing the narrow, hollow tube of the gastroscopy endoscope is a challenging task. The relatively high price of gastroscopy endoscopes and their sensitivity to heat and moisture limit their sterilization methods, significantly restricting their clinical application. Currently, widely used methods for gastroscopy sterilization include hydrogen peroxide plasma sterilization, ethylene oxide sterilization, and glutaraldehyde immersion. Ethylene oxide is a toxic gas that can leave toxic residues that harm human health; the hydrogen peroxide plasma method uses a vacuum chamber, which is expensive, complex to use, and time-consuming; glutaraldehyde immersion is commonly used in medicine, but it is time-consuming and inefficient. Based on current applications, these methods still have limited effectiveness against some pathogens, pose a risk of cross-infection, leave harmful residues, and can damage endoscope materials.

[0003] Plasma can generate electric fields, currents, UV radiation, and various charged particles and free radicals, which can cause pathogens to rapidly die or undergo apoptosis. The shape of an endoscope allows for a segmented electrode structure to generate a plasma jet discharge on the inner wall of the endoscope tube, achieving effective sterilization and disinfection of the endoscope's inner wall. However, the endoscope tube is a thin, long tube about one centimeter in diameter, wrapped in black plastic with optical fibers. The tube is opaque, making it impossible to accurately determine whether plasma discharge has occurred inside, thus hindering the assessment of whether the plasma has disinfected the inner wall of the tube, causing difficulties and inconvenience in practical applications. Existing technology publication number CN103585650A discloses a low-temperature plasma endoscope sterilization device and method. This device includes a gas control module, a power excitation module, and a plasma generation module. The gas control module controls rare gases and highly reactive dopant gases through a flow controller, achieving adjustable gas ratios and flow rates. The power excitation module uses a sinusoidal or pulsed high-voltage power supply to provide stable excitation to the plasma generation module. The plasma generation module, through a segmented electrode structure, uses a mixed gas dominated by rare gases to generate an atmospheric pressure cold plasma jet. This device can generate uniform, stable, room-temperature, and highly reactive plasma jets with lengths ranging from 1 cm to 2 m and diameters from 0.2 mm to 10 mm at atmospheric pressure, suitable for sterilizing endoscopes of different sizes. Based on this, this invention proposes a multi-segment electrode plasma discharge indication method, which uses simple and measurable electrical parameter measurements to accurately and effectively indicate whether plasma discharge has occurred inside the opaque endoscope tube and its working status. Summary of the Invention

[0004] 1. The technical problem to be solved:

[0005] To address the aforementioned technical problems, this invention provides a method for indicating the operating status of a plasma distributed electrode tube for inner wall disinfection. This disinfection device, based on a multi-segment electrode structure, generates a plasma jet to sterilize the inner wall of a slender tube. By adding a discharge indication function, it can accurately and effectively determine whether plasma discharge has occurred inside the tube and whether the discharge has extinguished after it has occurred when treating transparent or opaque slender tube inner walls. This provides a more complete and comprehensive functional indication solution for the practical application of plasma disinfection devices for slender tube inner walls, similar to those of endoscopes, ensuring the disinfection effect of the entire device.

[0006] 2. Technical Solution:

[0007] A method for indicating the operating status of a plasma distributed electrode tube for inner wall disinfection, applied to a tube inner wall plasma disinfection device based on multi-segment distributed electrodes; characterized in that it includes: a gas control module, a power drive module, a plasma generation module, and a discharge indicator module; the power drive module is connected to the plasma electrode module to provide power to the plasma electrode module; the gas control module provides at least one working gas to the high-voltage electric field generated by the plasma module; the plasma generation module includes a quartz glass tube; the inner diameter of the quartz glass tube is larger than the diameter of the tube to be disinfected, allowing the tube to pass through the quartz glass tube; multiple high-voltage electrodes and low-voltage electrodes are distributed at predetermined intervals on the outer side of the quartz glass tube, forming a plasma high-voltage electric field between adjacent high-voltage electrodes and low-voltage electrodes; the high-voltage... Both the high-voltage and low-voltage electrodes are connected to the power drive module to drive the plasma electric field. A measuring capacitor and a voltage sensor measuring the capacitor are connected in series between each low-voltage electrode and the ground electrode. Multiple measuring capacitors, voltage sensors for the measuring capacitors, a processor for processing the voltage data, and indicator lights constitute a discharge indication module. The capacitance of the measuring capacitor is much larger than the equivalent capacitance of the electrodes in the plasma generation module, and its impedance is much smaller than the equivalent impedance of the electrodes in the plasma generation module. The voltage sensor transmits the collected voltage values ​​to the processor for processing the voltage data. The processor compares each received measured voltage with a preset voltage range, turning on the indicator light corresponding to the voltage value within the preset range and turning off the indicator light corresponding to the voltage value not reaching the preset range.

[0008] Furthermore, both the high-voltage electrode and the low-voltage electrode are ring-shaped electrodes, which are alternately sleeved on the outer wall of the quartz glass tube.

[0009] Furthermore, the discharge indication module also includes a display device; the display device displays the voltage across each measuring capacitor after the voltage data processing processor has processed the voltage data.

[0010] 3. Beneficial effects:

[0011] (1) This method is based on a discharge plasma device in a tube with a multi-segment distributed electrode structure. When in use, the inner wall of the slender tube is inserted into the hollow part of the glass tube. After the power is turned on, plasma is generated on both the inner and outer sides of the tube to achieve disinfection. The multi-segment distributed structure of this scheme can control the number of high and low voltage electrodes involved according to the length of the slender tube to be tested. Furthermore, according to the measurement capacitor of the same specification connected in series on each distributed ground electrode, the different voltage values ​​on the measured capacitors are compared and analyzed to obtain the amount of charge transferred in each distributed electrode branch. This controls the lighting and extinguishing of the discharge indicator and the discharge extinguishing lamp to indicate the discharge state inside the gastroscopy tube.

[0012] (2) The plasma generation module of the present invention adopts a multi-segment distributed plasma electrode structure. In order to verify the discharge state logic judgment rules and conditions of the structure when generating plasma on the inner wall of the slender tube, in the specific embodiment, the charge transfer law between multiple distributed ground electrode circuits was analyzed and obtained in the multi-segment distributed plasma electrode structure. A mathematical model of charge difference between distributed ground electrode circuits was established, and the discharge state logic judgment rules and conditions of the discharge plasma in the tube of the entire electrode device were given. The discharge state corresponding to each segment of the multi-segment electrode can be accurately determined, and the discharge indication function is completed, thereby verifying the practicality of the solution.

[0013] (3) This invention proposes to use a discharge indicator module to realize a multi-channel input voltage data acquisition system, thereby sampling the voltage signals on multiple distributed ground wire measurement capacitors C1~Cn. The digital controller, according to the proposed model judgment criteria and based on experimental and theoretical analysis, performs data analysis on the voltage values ​​on the measurement capacitors, which can effectively, reliably, and in real-time detect the discharge state of each discharge interval of the distributed electrodes. This enables the control of the discharge indicator light or related display interface, achieving a user-friendly human-machine interface and providing guidance for the development and application of plasma source devices.

[0014] (4) The present invention is based on a plasma device for internal discharge of a tube with a multi-segment distributed electrode structure. The plasma jet discharge generated can effectively sterilize and disinfect the inner wall of the endoscope tube, which solves the problem that the endoscope tube is opaque and cannot accurately determine whether plasma jet discharge is generated inside the tube, thus ensuring the reliability of the sterilization and disinfection treatment of the inner wall of the tube.

[0015] (5) The discharge indicator module proposed in this invention is not only applicable to the multi-segment distributed electrode structure for sterilization and disinfection of the inner wall of the pipe, but also applicable to structures with similar high and low voltage electrodes arranged in alternating patterns. The method proposed in this invention has a wide range of applications, good compatibility, and good practical engineering application value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an overall disinfection system for the inner wall of a tube based on multi-segment distributed electrodes using plasma.

[0017] Figure 2 This is a schematic diagram of the overall circuit of a tube inner wall plasma disinfection system based on multi-segment distributed electrodes.

[0018] Figure 3 This is a schematic diagram of the discharge indicator module in this solution.

[0019] Figure 4 This is a schematic diagram of the device for verifying gas discharge without flow in a specific embodiment;

[0020] Figure 5 The capacitor voltage waveform and Lissajous figure are shown in the specific embodiment for verifying gas discharge but no flow.

[0021] Figure 6 This is a schematic diagram of the device in a specific embodiment where the working gas is He gas and the gas flow rate is 1.5 L / min;

[0022] Figure 7 In this specific embodiment, the working gas is He gas, and the gas flow rate is 1.5 L / min. The capacitor voltage waveform and Lissajous figure are shown.

[0023] Figure 8 This is a schematic diagram illustrating that the working gas for the double-layer medium is He gas with a flow rate of 1.5 L / min in a specific embodiment.

[0024] Figure 9 In a specific embodiment, the working gas for the double-layer medium is He gas, and the gas flow rate is 1.5 L / min. The capacitor voltage waveform and Lissajous figure are shown in the figure.

[0025] Figure 10 This is a schematic diagram of a double-layer dielectric without working gas and without discharge in a specific embodiment;

[0026] Figure 11 The capacitor voltage waveform and Lissajous figure are shown in the specific embodiment when there is no working gas and no discharge in the double-layer dielectric. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings.

[0028] As attached Figure 1 To be continued Figure 3As shown, a method for indicating the operating status of a plasma distributed electrode tube for inner wall disinfection is applied to a tube inner wall plasma disinfection device based on multi-segment distributed electrodes. The method is characterized by comprising: a gas control module, a power drive module, a plasma generation module, and a discharge indicator module; the power drive module is connected to the plasma electrode module to provide power to the plasma electrode module; the gas control module provides at least one working gas to the high-voltage electric field generated by the plasma module; the plasma generation module includes a quartz glass tube; the inner diameter of the quartz glass tube is larger than the diameter of the tube to be disinfected, allowing the tube to pass through the quartz glass tube; multiple high-voltage electrodes and low-voltage electrodes are distributed at predetermined intervals on the outer side of the quartz glass tube, forming a plasma high-voltage electric field between adjacent high-voltage and low-voltage electrodes; the high-voltage... Both the high-voltage electrode and the low-voltage electrode are connected to the power drive module to drive the plasma electric field. Each low-voltage electrode is connected in series with a measuring capacitor and a voltage measuring sensor to measure the capacitor. Multiple measuring capacitors, voltage sensors for the measuring capacitors, a processor for processing voltage data, and indicator lights constitute a discharge indication module. The capacitance value of the measuring capacitor is much larger than the equivalent capacitance of the electrodes of the plasma generation module, and the impedance value is much smaller than the equivalent impedance of the electrodes of the plasma generation module. The voltage measuring sensor transmits the collected voltage value to the processor for processing voltage data. The processor for processing voltage data compares each received measured voltage with a preset voltage value range, and turns on the indicator light corresponding to the voltage value within the preset range; the indicator light corresponding to the voltage value not reaching the preset voltage value range is turned off.

[0029] Furthermore, both the high-voltage electrode and the low-voltage electrode are ring-shaped electrodes, which are alternately sleeved on the outer wall of the quartz glass tube.

[0030] Furthermore, the discharge indication module also includes a display device; the display device displays the voltage across each measuring capacitor after the voltage data processing processor has processed the voltage data.

[0031] Furthermore, both the high-voltage electrode and the low-voltage electrode are ring-shaped electrodes, which are alternately sleeved on the outer wall of the quartz glass tube.

[0032] Furthermore, the discharge indication module also includes a display device; the display device displays the voltage across each measuring capacitor after the voltage data processing processor has processed the voltage data. Specific implementation examples:

[0034] This specific embodiment, from a verification perspective, examines the characteristics of the voltage of the multi-segment distributed electrode structure and the measured capacitor in the discharge indicator module under different conditions.

[0035] Example 1:

[0036] As attached Figure 4 , 5 As shown, this embodiment uses a 5-segment electrode (2 high-voltage electrodes and 3 ground electrodes) to illustrate the discharge indication principle. In the figure, HV1 and HV2 represent high voltage (HV1=HV2). C m1 , C m2 , C m3 For the measurement capacitor connected in series with the ground wire ( C m1 = C m2 = C m3 and C m1 , C m2 , C m3 It is much larger than the equivalent capacitance of the electrode reactor, and its impedance is much smaller than the equivalent impedance of the electrode reactor. U Cm1 , U Cm2 , U Cm3 To measure the voltage across the capacitor, Q This is a circuit for the movement of charges. From this, we know that in a capacitor... C m When the value is constant, the capacitor voltage value U Cm With capacitance charge Q It is proportional to the charge Q parameter for easy identification.

[0037] This device can achieve single-dielectric and multi-dielectric discharge; among which... Figure 4 The diagram shows a single-dielectric glass tube filled with He gas undergoing plasma discharge, but the gas is not flowing. Figure 5 The figure shows the voltage waveform across a measuring capacitor in a single-dielectric glass tube filled with He gas plasma discharge, but with the gas not flowing, and is similar to the Lissajous figure. Figure 4 As shown, a single-layer glass tube is filled with stagnant He gas. A unipolar high-voltage pulse excitation is applied to induce plasma discharge within the tube. A pulsed electric field is generated between the high- and low-voltage electrodes. The gas inside the tube is ionized by breakdown, and electrons move from the ground electrode to the anode under the influence of the electric field. Positive charges accumulate on the measuring capacitor, causing a change in the voltage across the capacitor. The relationship between the electric fields between the electrodes indicates... U Cm1 = Q 11 , U Cm2 = Q 12 +Q 22 , U Cm2 = Q 12 + Q 22 .according to Figure 5 The capacitor voltage measured by the oscilloscope indicates that: U Cm1 = Q 11 =14V, U Cm2 = Q 12 + Q 22 =28V, U Cm3 = Q 23 =16V, U Cm3 > U Cm1 , U Cm2 =2 U Cm1 .

[0038] Example 2

[0039] Figure 6 The diagram shows a plasma discharge in a single-dielectric glass tube filled with He gas at a flow rate of 1.5 L / min. Figure 7 The figure shows the voltage waveform across the measured capacitor in a single-dielectric glass tube filled with He gas plasma discharge at a gas flow rate of 1.5 L / min, compared with the Lissajous figure. Figure 6 As shown, a single-layer glass tube is filled with He gas at a flow rate of 1.5 L / min. A unipolar high-voltage pulse excitation is applied to induce plasma discharge inside the tube. A pulsed electric field is generated between the high- and low-voltage electrodes, causing the gas inside the tube to be ionized. Electrons move from the ground electrode to the anode under the influence of the electric field force, and positive charges accumulate on the measuring capacitor, causing a change in the voltage across the measuring capacitor. Simultaneously, under the influence of the airflow, a portion of the plasma moves along the airflow direction, which is represented by Δ in the figure. Q flow_E1 , △ Q flow_E2 .according to Figure 6 and Figure 7 It can be known that at this time: U Cm1 = Q 11 +△ Q flow_E1 =18V, U Cm2 =Q 12 + Q 22 +△ Q flow_E2 =35V, U Cm3 = Q 23 =24V, U Cm3 > U Cm1 , U Cm2 ≈2 U Cm1 .

[0040] Example 3

[0041] Figure 8 The diagram shows a double-layered medium, with a gastroscopy tube passing through the glass tube. The gastroscopy tube is filled with He gas plasma discharge at a flow rate of 1.5 L / min. Figure 9 The figure shows the voltage waveform of the measured capacitor when the endoscope tube, filled with He gas plasma discharge gas at a flow rate of 1.5 L / min, passes through a double-layered glass tube. (See Lissajous figure.) Figure 8 As shown, in a double-layered medium, the endoscope tube passes through a glass tube filled with He gas at a flow rate of 1.5 L / min. A unipolar high-voltage pulse excitation is applied to induce plasma discharge within the tube. A pulsed electric field is generated between the high and low voltage electrodes, causing the gas inside the endoscope tube to be ionized. Electrons move from the ground electrode to the anode under the influence of the electric field, accumulating positive charges on the measuring capacitor, resulting in a change in the voltage across the capacitor. Simultaneously, under the influence of the airflow, a portion of the plasma moves along the airflow direction, represented by Δ in the figure. Q flow_E1 , △ Q flow_E2 Because the increased thickness of the dielectric between the electrode and the discharge region leads to a decrease in discharge power, the voltage value measured on the capacitor is lower compared to... Figure 7 It should be smaller. According to Figure 8 and Figure 9 It can be known at this time: U Cm1 = Q 11 +△ Q flow_E1 =15V, U Cm2 = Q 12 + Q 22 +△ Q flow_E2 =28V, UCm3 = Q 23 =18V, U Cm3 > U Cm1 , U Cm2 ≈2 U Cm1 .

[0042] Example 4

[0043] Figure 10 The diagram shows a double-layered medium, with a gastroscopy tube passing through the glass tube, and no He gas or electrical discharge inside the gastroscopy tube. Figure 11 The diagram shows the voltage waveform on the measuring capacitor when a gastroscope tube passes through a double-layered glass tube, with no He gas and no discharge inside the tube, as shown in the Lissajous figure. At this time, the unipolar high-voltage pulsed electric field acts directly on the air, and the gas is static with no plasma discharge. However, at a microscopic level, there is still charge movement, resulting in capacitive current and voltage changes on the measuring capacitor. U Cm1 ≈ U Cm3 , U Cm2 ≈2 U Cm1 ≈2 U Cm3 .according to Figure 10 and Figure 11 It can be known at this time: U Cm1 = Q 11 =21V, U Cm2 = Q 12 + Q 22 =38V, U Cm3 = Q 23 =21V. Due to inherent errors in electrode fabrication and measurement, there is a certain discrepancy between the theoretical and measured values. Within the range of measurement error, it can be considered... U Cm1 ≈ U Cm3 , U Cm2 ≈2 U Cm1 ≈2 U Cm3 .

[0044] in conclusion:

[0045] According to Kirchhoff's Law (KCL) and the principle of charge conservation, during plasma discharge, under the influence of a unipolar high-voltage pulsed electric field, free electrons move from the ground electrode to the anode. Positive charges accumulate on the measuring capacitor, causing a change in its voltage. When the measuring capacitor value is constant, the voltage is proportional to the amount of charge on the capacitor. When gas flows through the pipe, under the combined action of the electric field and the gas velocity, the number of free electrons moving between electrodes with the velocity direction in the same direction as the electric field is slightly smaller than the number moving between electrodes with the velocity direction in the opposite direction to the electric field. This is because the direction of the current and the direction of positive charge movement are opposite to the direction of electron movement. Figure 6 , 8 The middle is manifested as U Cm1 < U Cm3 And because of capacitors C m2 Positioned in the middle with symmetrical electrodes on both sides, free electrons emitted from the CH3 ground electrode move towards the two high-voltage electrodes HV1 and HV2, respectively. C m2 The charge on top is approximately C m1 , C m3 Twice the amount of charge, in the presence of gas flow. U Cm2 ≈2 U Cm1 , U Cm1 < U Cm3 .

[0046] Based on the above analysis and experimental verification conclusions, the logic for detecting endoscopic discharge state can be derived as follows: C 1. Measurement of voltage across capacitor U C1 These are the electrode coordinates corresponding to the air outlet. C n The subscript measures the voltage across the capacitor. U Cn These are the electrode coordinates corresponding to the air intake. Q norm The normalized charge of the discharge-free plasma. C m To measure the capacitance value:

[0047] (1) When no discharge plasma occurs within the multi-segment electrode, the following can be detected: U Cn = U C1 =(1 / C m ).Q norm , U Cn = U Ci =2.(1 / C m ). Q norm ( i =2, 3, ..., n -1), and exists U C2 = U C3 = U C4 =……= U Cn-2 = U Cn-1 = 2(1 / C m ). Q norm ;

[0048] (2) When discharge plasma occurs in the multi-segment electrodes, it can be detected. U Cn >(1 / C m ). Q norm > U C1 , U Cn < U Ci ( i =2, 3, ..., n -1), and has U C2 ≈ U C3 ≈ U C4 ≈……≈ U Cn-2 ≈ U Cn-1 ≈ 2.(1 / C m ). Q norm ;

[0049] (3) When discharge plasma occurs within the multi-segment electrodes, and gas flow forms jet plasma discharge conditions, when there is gas flow velocity, and a plasma discharge channel is generated inside the endoscope tube, within the electric field region, the flow velocity direction at the electrode reactor port and the electric field direction work together, resulting in a difference in the charge on the port measuring capacitor. Figure 3-11 In the schematic diagram of electrode distribution shown, there areU Cm2 ≈2 U Cm1 , U Cm1 < U Cm3 If no plasma discharge occurs or the discharge is extinguished, the voltage values ​​at the two locations will be approximately equal. U Cm1 ≈ U Cm3 , U Cm2 ≈2 U Cm1 ≈2 U Cm3 The detected voltage value on the measuring capacitor is sent to the digital processor. Based on the results, it is compared and calculated to obtain an accurate basis for judging whether there is a discharge inside the opaque gastroscopy tube. The discharge indicator and the flameout indicator are controlled to give instructions to the operator.

[0050] Although the present invention has been disclosed above with reference to preferred embodiments, these are not intended to limit the invention. Any person skilled in the art can make various changes or modifications without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be defined by the scope of the claims of this application.

Claims

1. A method for indicating the operating status of a plasma distributed electrode tube for inner wall disinfection, applicable to a tube inner wall plasma disinfection device based on multi-segment distributed electrodes; characterized in that: include: The system includes a gas control module, a power drive module, a plasma generation module, and a discharge indicator module; the power drive module is connected to the plasma electrode module and provides power to the plasma electrode module. The gas control module provides at least one working gas to the high-voltage electric field generated by the plasma module. The plasma generation module includes a quartz glass tube. The inner diameter of the quartz glass tube is larger than the diameter of the tube to be sterilized, allowing the tube to pass through. Multiple high-voltage electrodes and low-voltage electrodes are distributed at preset intervals on the outer side of the quartz glass tube, forming a plasma high-voltage electric field between adjacent high-voltage and low-voltage electrodes. Both the high-voltage and low-voltage electrodes are connected to a power drive module to drive the plasma electric field. Each low-voltage electrode is connected in series with a measuring capacitor and a voltage measuring sensor for measuring the capacitor. Multiple measuring capacitors, voltage sensors for measuring the capacitors, a processor for processing the voltage data, and indicator lights constitute a discharge indication module. The capacitance value of the measuring capacitor is much larger than the equivalent capacitance of the electrodes of the plasma generation module, and its impedance value is much smaller than the equivalent impedance of the electrodes of the plasma generation module. The voltage measuring sensor transmits the collected voltage value to the processor for processing the voltage data. The processor for processing the voltage data compares each received measured voltage with a preset voltage range and turns on the indicator light corresponding to the voltage value within the preset range. The indicator light corresponding to the voltage value not reaching the preset range will turn off.

2. The method for indicating the operating status of a plasma distributed electrode tube for inner wall disinfection according to claim 1, characterized in that: Both the high-voltage electrode and the low-voltage electrode are ring-shaped electrodes, which are alternately sleeved on the outer wall of the quartz glass tube.

3. The method for indicating the operating status of a plasma distributed electrode tube for inner wall disinfection according to claim 1, characterized in that: The discharge indicator module also includes a display device; the display device displays the voltage across each measuring capacitor after the voltage data processing processor has processed the voltage data.

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